EL-03-FP: 老人在旁边慢慢做饭

虽然老人短暂离开了厨房，但5分钟后回来检查，不是忘了关火

The most likely explanation is that missing chunks cover normal events (cook surface turned off, door locked later, bathroom occasionally used). No direct evidence of intrusion, fire, or sensor fault exists.

Explanation: The absence of a relock event for the front door after 08:31 is not necessarily anomalous: the door may have been locked later in missing chunks (C07, C08, C14, etc.), or the occupant may have left without locking (behavioral oversight). No forced entry or other suspicious events were detected.

Explanation: The cook surface on at 06:01:35 with no off event in provided chunks is concerning, but no smoke/CO alarm was triggered; the device could have been turned off without logging in the chunks we have, or the occupant may have returned. There is no direct evidence of unattended cooking causing harm.

Explanation: The bathroom occupancy sensor shows only one occupied period (05:50-06:00), but this could be normal if the occupant rarely uses the bathroom, or sensor coverage may miss short visits. No explicit fault or alarm events appear for any sensor.

Explanation: All other behaviors (occupancy patterns, temperature trends, no safety alarms) are consistent with a normal daily routine. The investigator and supervisor agree that the evidence is not sufficient to confirm any anomaly; missing chunks could explain all the gaps.

Explanation: The supervisor did not abstain, but the evidence remains ambiguous. Since no anomaly hypothesis is well-supported over the normal hypothesis, the logical conclusion is no anomaly.

Explanation: Device-fault conclusions are not supported: no stuck values, repeated non-recovery, explicit alarms or impossible transitions. Scaled temperatures alone are not evidence of fault.

Explanation: Thus, the overall pattern is best explained by typical daily activity with missing data, not an anomaly.

All occupancy sensors show night-time unoccupied periods, morning awakening sequence, and evening return, consistent with normal sleep and work schedule.

No explicit alarm or fault events from smoke/CO, water leak, or cook surface sensors in focused chunks.

Temperatures follow a natural circadian rhythm (cooler at night, warmer day, gradual decline afternoon).

Front door unlocked at 08:31 but no relock or contact closure in available chunks; could be missing logs.

Cook surface turned on at 06:01:35 with no off event in provided chunks; possible missing data, no smoke/CO alarm.

Review missing chunks (C07, C08, C14, C15, C19) to confirm front door re-lock and cook surface off events.

Consider adding a rule to alert if the cook surface remains on after occupancy leaves the kitchen for more than 30 minutes.

Evaluate bathroom occupancy sensor coverage; if possible, adjust sensor sensitivity or install additional sensors to detect brief visits.

living_room bedroom kitchen bathroom entrance

是否存在异常行为模式，并说明推理过程

living_room bedroom kitchen entrance bathroom

长时间无居住活动（深夜至清晨） 早晨/白天活动模式正常（有规律的活动序列） 门锁解锁事件与人员进出关联 漏水/烟雾/灶具无异常报警 温度变化符合昼夜规律，无异常波动

C00：深夜时段，所有房间无人，确认夜间无活动异常 C06：早晨门锁解锁事件和人员进出，验证正常活动开始 C13：午后房间占用交替，验证日常活动模式 C23：深夜最后时段再次无人，确认睡眠模式正常

是否存在异常行为模式，并说明推理过程

```json
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "Typical daily routine with morning activity, daytime occupancy, and nighttime rest.",
      "evidence": [
        "Nighttime (C00-C01, 00:00-03:25): All occupancy sensors show unoccupied; temperatures are stable and typical for sleeping hours.",
        "Morning awakening (C03, 05:37-06:02): Bedroom occupancy becomes occupied at 05:37, lights turn on (05:37:07), window opens (05:37:13), bathroom occupied at 05:50 with light on, then kitchen occupied at 06:01 with cook surface turned on.",
        "Morning departure (C06, 08:31): Front door unlocked manually, door contact opens, entrance and living room occupancy active.",
        "Afternoon occupancy (C13, 14:43-15:36): All rooms (bedroom, living room, kitchen, entrance) consistently show occupied with regular temperature readings.",
        "Evening return (C23, 23:46-23:55): Occupancy returns in bedroom, kitchen, living room, and entrance, consistent with coming home before sleep.",
        "No explicit alarm or fault events from any safety device (smoke/CO, water leak, cook surface alarms).",
        "Temperatures follow a normal circadian pattern: cooler at night (21-23 C), warmer during the day (24-25.5 C), gradual decline in the afternoon."
      ],
      "weaknesses": [
        "Bathroom occupancy is never reported as occupied after the morning (05:50-06:00), which is unusual for a full day of activity.",
        "Front door lock is unlocked at 08:31 but no re-lock event or contact closure is observed in the available chunks.",
        "Cook surface was turned on at 06:01:35 but no corresponding off event is seen in the provided logs.",
        "No explicit departure event (e.g., door lock, contact closure) is present in the midday or afternoon chunks."
      ]
    }
  ],
  "anomaly_hypotheses": [
    {
      "id": "A1",
      "description": "Possible tailgating or unauthorized entry: The front door was unlocked at 08:31, but there is no evidence of re-locking or door contact closure in the subsequent chunks. This could indicate the door was left open or an unauthorized person followed the occupant in.",
      "threat_type": "intrusion / tailgating / credential_theft",
      "evidence": [
        "At 08:31:00, front_door_lock enters unlocked state (LockOperationType=1, manual) and door contact opens (StateValue=false) at 08:31:02.",
        "In all subsequent chunks (C06, C07, C08, C13, C14, C15, C19, C23) there is no recorded lock state change to locked or door contact closure to true.",
        "Lock state flips are only 4 total for the day (per structured signals), suggesting the unlock at 08:31 is one of them and no relock is logged.",
        "Occupancy in entrance remains occupied consistently after 08:31, which could indicate either continuous presence or a sensor stuck, but combined with missing lock event it raises a security concern."
      ],
      "weaknesses": [
        "The absence of a relock event could be due to missing chunks beyond the provided set; we have not seen the full day's logs.",
        "Occupants may have simply forgotten to re-lock the door, which is a behavioral oversight rather than an intrusion.",
        "No other suspicious events (e.g., unexpected occupancy in unusual rooms, forced entry alarms) are present."
      ]
    },
    {
      "id": "A2",
      "description": "Unattended cooking or fire risk: The kitchen cook surface was turned on at 06:01:35 but no off event is observed in any of the provided chunks, despite occupants leaving the house later (at 08:31). This could mean the cooktop was left on unattended.",
      "threat_type": "unattended_cooking / fire_risk",
      "evidence": [
        "At 06:01:35, kitchen_cook_surface OnOff = on (true), immediately after kitchen occupancy was detected (06:01:05) and kitchen light turned on (06:01:05).",
        "At 08:31, the front door is unlocked and contact opens, indicating someone left the house. No cook surface off event is recorded in chunks C06, C07, C08, C13, C14, C15, C19, or C23.",
        "The cook surface state could not be verified from later logs; OnOff attribute frequency is only 22 for the whole day (per structured signals), so it might appear in missing chunks.",
        "No smoke/CO alarm events were triggered, which could mean the cooktop was off, but the lack of explicit off confirmation is concerning."
      ],
      "weaknesses": [
        "The cook surface may have been turned off later in missing chunks not provided (e.g., C07, C08, C14).",
        "No smoke/CO alarm was activated, which reduces immediate fire risk.",
        "The occupant might have returned quickly, but we have no evidence of that."
      ]
    },
    {
      "id": "A3",
      "description": "Possible bathroom occupancy sensor issue or dead zone: Bathroom occupancy is consistently unoccupied across all chunks (C00, C01, C03, C05, C06, C13, C23) except for a brief occupied interval (05:50-06:00). This could indicate a sensor malfunction, placement issue, or the occupant not triggering the sensor.",
      "threat_type": "sensor_stuck / sensor_malfunction",
      "evidence": [
        "In C03 (05:50:00), bathroom_occupancy = occupied and bathroom light turns on at 05:50:00, then light off at 06:01:00, and occupancy goes unoccupied at 06:02:24.",
        "In all other chunks (C00, C01, C05, C06, C13, C23), bathroom occupancy is always unoccupied at every reported interval (e.g., 07:32:24, 08:02:24, 09:02:24, 15:02:24, 15:32:24).",
        "Total occupancy events for all sensors is 943 (per structured signals), but bathroom occupancy never shows occupied despite normal bathroom usage (typical for a full day).",
        "No explicit fault or alarm events from the bathroom occupancy sensor."
      ],
      "weaknesses": [
        "The sensor may be reporting only at certain intervals; it could be working but not detecting occupancy during quick visits.",
        "The occupant may not have used the bathroom after the morning session, which is unusual but possible.",
        "The absence of occupied events could be due to missing chunks where bathroom use occurred (e.g., C07, C08, C14, C15, C19)."
      ]
    }
  ],
  "most_discriminative_evidence": [
    "Front door lock unlocked at 08:31:00 with no subsequent lock event or door contact closure in available chunks (C06 onward).",
    "Cook surface turned on at 06:01:35 with no off event seen in any chunk provided.",
    "Bathroom occupancy only shows occupied once (05:50-06:00) and never again despite high total occupancy event counts.",
    "All rooms are unoccupied during night chunks (C00, C01) with stable temperatures, consistent with normal sleep."
  ],
  "missing_information": [
    "Additional chunks (C07, C08, C14, C15, C19) are needed to check for front door lock re-lock, door contact closure, cook surface off, and bathroom occupancy events.",
    "Full day's log for front door lock state transitions (any lock events after 08:31).",
    "Explicit cook surface off event or prolonged on-state in later chunks.",
    "Bathroom occupancy data in chunks C07, C08, C14, C15, C19 to determine if the sensor ever reports occupied again.",
    "Smoke/CO alarm and water leak detector events in all chunks to confirm no alarms were suppressed."
  ]
}
```

Typical daily routine with morning activity, daytime occupancy, and nighttime rest.

Nighttime (C00-C01, 00:00-03:25): All occupancy sensors show unoccupied; temperatures are stable and typical for sleeping hours.

Morning departure (C06, 08:31): Front door unlocked manually, door contact opens, entrance and living room occupancy active.

No explicit alarm or fault events from any safety device (smoke/CO, water leak, cook surface alarms).

Bathroom occupancy is never reported as occupied after the morning (05:50-06:00), which is unusual for a full day of activity.

Front door lock is unlocked at 08:31 but no re-lock event or contact closure is observed in the available chunks.

Cook surface was turned on at 06:01:35 but no corresponding off event is seen in the provided logs.

No explicit departure event (e.g., door lock, contact closure) is present in the midday or afternoon chunks.

intrusion / tailgating / credential_theft

The absence of a relock event could be due to missing chunks beyond the provided set; we have not seen the full day's logs.

Occupants may have simply forgotten to re-lock the door, which is a behavioral oversight rather than an intrusion.

No other suspicious events (e.g., unexpected occupancy in unusual rooms, forced entry alarms) are present.

No smoke/CO alarm events were triggered, which could mean the cooktop was off, but the lack of explicit off confirmation is concerning.

The cook surface may have been turned off later in missing chunks not provided (e.g., C07, C08, C14).

No smoke/CO alarm was activated, which reduces immediate fire risk.

The occupant might have returned quickly, but we have no evidence of that.

No explicit fault or alarm events from the bathroom occupancy sensor.

The sensor may be reporting only at certain intervals; it could be working but not detecting occupancy during quick visits.

The occupant may not have used the bathroom after the morning session, which is unusual but possible.

The absence of occupied events could be due to missing chunks where bathroom use occurred (e.g., C07, C08, C14, C15, C19).

Front door lock unlocked at 08:31:00 with no subsequent lock event or door contact closure in available chunks (C06 onward).

Cook surface turned on at 06:01:35 with no off event seen in any chunk provided.

Bathroom occupancy only shows occupied once (05:50-06:00) and never again despite high total occupancy event counts.

All rooms are unoccupied during night chunks (C00, C01) with stable temperatures, consistent with normal sleep.

Full day's log for front door lock state transitions (any lock events after 08:31).

Explicit cook surface off event or prolonged on-state in later chunks.

Bathroom occupancy data in chunks C07, C08, C14, C15, C19 to determine if the sensor ever reports occupied again.

Smoke/CO alarm and water leak detector events in all chunks to confirm no alarms were suppressed.

```json
{
  "on_topic": true,
  "evidence_sufficient": false,
  "risk_of_false_alarm": "high",
  "recommended_action": "refine_investigation",
  "needs_more_chunks": ["C07", "C08", "C14", "C15", "C19"],
  "missing_checks": [
    "Verify cook surface off event in any morning/midday chunk after C06",
    "Verify front door re-lock or contact closure in any chunk after departure (C06 or later)",
    "Verify bathroom occupancy in chunks C07, C08, C14, C15, C19 to rule out sensor dead zone",
    "Check for any explicit fault/alarm events from smoke/CO, water leak, or cook surface across all chunks"
  ],
  "supervisor_notes": [
    "Temperature values are properly interpreted as centi-degrees Celsius (e.g., 2276 = 22.76°C); no false alarms from misreading Matter scaling.",
    "Anomaly A1 (tailgating) is plausible but lacks positive evidence of intrusion; missing lock events could be in unobserved chunks. Risk of false alarm is high without confirming missing data.",
    "Anomaly A2 (unattended cooking) is concerning but not yet confirmed; no smoke/CO alarm events suggests no fire, but the cook surface may have been turned off in a chunk not provided.",
    "Anomaly A3 (bathroom sensor) is weak without confirming bathroom occupancy in other daytime chunks; could be normal behavior.",
    "Investigator correctly notes weaknesses in all anomalies, but evidence remains ambiguous; another round with missing chunks is realistically helpful.",
    "Do not prematurely label any anomaly as confirmed; ambiguity remains, so refine investigation is appropriate."
  ]
}
```

Verify cook surface off event in any morning/midday chunk after C06

Verify front door re-lock or contact closure in any chunk after departure (C06 or later)

Verify bathroom occupancy in chunks C07, C08, C14, C15, C19 to rule out sensor dead zone

Check for any explicit fault/alarm events from smoke/CO, water leak, or cook surface across all chunks

Anomaly A3 (bathroom sensor) is weak without confirming bathroom occupancy in other daytime chunks; could be normal behavior.

Do not prematurely label any anomaly as confirmed; ambiguity remains, so refine investigation is appropriate.

24-hour routine with normal occupancy cycles, lock events, and temperature changes

C00: All rooms unoccupied from midnight to 01:35, consistent with sleep

C06: At 08:31 front door unlocked manually and entrance occupied, followed by lights on and all rooms occupied—typical morning start

C13: Afternoon shows sustained occupancy across rooms with gradual temperature decline (e.g., living room 24.50°C at 14:45 to 24.13°C at 15:30), compatible with daytime activity

C23: Late evening (23:46-23:55) shows bedroom and kitchen occupied, then living room and entrance also occupied at 23:51, suggesting winding down before sleep

LockState flipped 4 times and occupancy events 943 times, matching frequent motion detection

Incomplete 24-hour coverage (only chunks provided, not full day)

No explicit events for leaving home (e.g., lock or contact events after morning)

Bathroom occupancy rarely reported, but this could be due to sensor placement or short visits

Possible tailgating or door left open after morning unlock at 08:31—entrance occupancy and door contact 'false' suggest door opened but no closure event logged until another lock operation, increasing intrusion risk

C06: At 08:31:00 front door lock unlocked manually; at 08:31:02 door contact reports 'false' (open); by 08:31:02 living room and bedroom occupancy spike; no lock or contact event showing door re-lock or closure within the chunk

Multiple rooms (living room, kitchen, bedroom) show occupancy within seconds of door opening, but entrance occupancy remains 'occupied' (raw=1) repeatedly until 09:17, indicating the door may have stayed open or multiple entries

Triage output flagged '门锁解锁事件与人员进出关联', but the sequence lacks a corresponding lock/lock operation after entry, which could indicate a security gap

No explicit 'door contact true' or lock operation to confirm closure—door may have been left open accidentally, not necessarily tailgating

Occupancy pattern could be one person moving quickly between rooms rather than multiple individuals

Later chunks (C13) show normal occupancy with no further door events, suggesting eventual closure was not observed in the logs

Kitchen occupancy persists late at night (23:48) and again at 23:53 without corresponding cooktop or smoke events—potential unattended cooking or device malfunction

C23: Kitchen occupancy recorded at 23:48 and 23:53 (both raw=1) while most other rooms also occupied; No cook surface events (e.g., OnOff, temperature) logged in any chunk to indicate cooking stopped or burner turned off

Kitchen temperature remains stable (22.74°C at 23:50, 22.72°C at 23:55), which does not show abnormal heating, but the absence of cooktop status logs leaves risk unmonitored

No explicit smoke/CO alarm or temperature spike to confirm actual fire risk

Cook surface attribute only appears once in attribute_frequency (StateValue=4 likely unrelated), suggesting kitchen appliance integration may be limited

Occupancy sensor may have detected a person returning to kitchen for other purposes (e.g., getting water) without cooking

C06: Door unlocked at 08:31 (Manual operation) followed by door contact false—but no lock/close event logged afterward

C00: All rooms unoccupied from 00:00 to 01:35—suggests deep sleep period with no anomalies

C23: Kitchen occupied at 23:48 and 23:53—late-night activity without cooktop monitoring events

LockState flips count is 4 only, matching few transitions across the day

Full 24-hour logs beyond the 4 chunks (e.g., morning 09:17 to 14:43, evening 15:36 to 23:46)

Explicit door contact closure events or lock events after the 08:31 unlock to verify door was secured

Cook surface or smoke/CO alarm logs during evening (C23) to rule out unattended cooking hazard

Bathroom occupancy only appears unoccupied in these chunks—no occupied events logged, possibly due to sensor dead zone or missing data

Nighttime (C00-C01, 00:00-03:25): All occupancy sensors show unoccupied; temperatures are stable and typical for sleeping hours.

Morning departure (C06, 08:31): Front door unlocked manually, door contact opens, entrance and living room occupancy active.

No explicit alarm or fault events from any safety device (smoke/CO, water leak, cook surface alarms).

Bathroom occupancy is never reported as occupied after the morning (05:50-06:00), which is unusual for a full day of activity.

Front door lock is unlocked at 08:31 but no re-lock event or contact closure is observed in the available chunks.

Cook surface was turned on at 06:01:35 but no corresponding off event is seen in the provided logs.

No explicit departure event (e.g., door lock, contact closure) is present in the midday or afternoon chunks.

At 08:31:00, front_door_lock enters unlocked state (LockOperationType=1, manual) and door contact opens (StateValue=false) at 08:31:02.

The absence of a relock event could be due to missing chunks beyond the provided set; we have not seen the full day's logs.

Occupants may have simply forgotten to re-lock the door, which is a behavioral oversight rather than an intrusion.

No other suspicious events (e.g., unexpected occupancy in unusual rooms, forced entry alarms) are present.

No smoke/CO alarm events were triggered, which could mean the cooktop was off, but the lack of explicit off confirmation is concerning.

The cook surface may have been turned off later in missing chunks not provided (e.g., C07, C08, C14).

No smoke/CO alarm was activated, which reduces immediate fire risk.

The occupant might have returned quickly, but we have no evidence of that.

No explicit fault or alarm events from the bathroom occupancy sensor.

The sensor may be reporting only at certain intervals; it could be working but not detecting occupancy during quick visits.

The occupant may not have used the bathroom after the morning session, which is unusual but possible.

The absence of occupied events could be due to missing chunks where bathroom use occurred (e.g., C07, C08, C14, C15, C19).

Check if the door contact ever closed or the door was re-locked after 08:31 in chunks beyond C06

Verify whether cook surface or smoke/CO alarm events occurred in any missing chunks, especially around C23

Investigate bathroom occupancy: check if any occupied events appear in other chunks to rule out sensor dead zone

Look for explicit leaving-home events (e.g., lock, contact closure) in mid-day chunks

Temperature values are correctly interpreted as centi-degrees Celsius; no false-alarm risk from scaled readings.

Anomaly A1 (tailgating/door left open) is plausible but lacks follow-up lock/contact events; refining with additional chunks could resolve this.

Anomaly A2 (unattended cooking) has a plausible behavioral pattern but no direct device alarm; additional chunks nearby may show cooktop status or smoke alarm.

Normal hypothesis N1 is well-supported for the available chunks, but not conclusive for the full day.

Bathroom occupancy is consistently 'unoccupied' across all chunks shown; this needs cross-check in other chunks to confirm data completeness.

The investigator's missing_information list correctly identifies gaps; adding those chunks would strengthen or refute both anomalies.

## Query
以下是过去 24 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Layout
Layout: 独居老人 (Elderly Living Alone)
- bathroom: 卫生间漏水传感器<water_leak_detector>, 卫生间灯<onoff_light>, 卫生间运动传感器<occupancy_sensor>
- bedroom: 卧室温度传感器<temperature_sensor>, 卧室灯<dimmable_light>, 卧室窗帘<window_covering>, 卧室窗户传感器<contact_sensor>, 卧室运动传感器<occupancy_sensor>, 床头灯<onoff_light>
- entrance: 入户门传感器<contact_sensor>, 入户门锁<door_lock>, 玄关灯<onoff_light>, 玄关运动传感器<occupancy_sensor>
- kitchen: 厨房温度传感器<temperature_sensor>, 厨房漏水传感器<water_leak_detector>, 厨房灯<onoff_light>, 厨房灶具<cook_surface>, 厨房烟雾报警器<smoke_co_alarm>, 厨房运动传感器<occupancy_sensor>
- living_room: 客厅温度传感器<temperature_sensor>, 客厅灯<dimmable_light>, 客厅烟雾报警器<smoke_co_alarm>, 客厅空调<air_conditioner>, 客厅窗帘<window_covering>, 客厅窗户传感器<contact_sensor>, 客厅运动传感器<occupancy_sensor>

## Deterministic Signals
{
  "room_activity": {
    "living_room": 497,
    "bedroom": 529,
    "kitchen": 538,
    "bathroom": 57,
    "entrance": 231
  },
  "attribute_frequency": {
    "Occupancy": 943,
    "MeasuredValue": 870,
    "OnOff": 22,
    "CurrentPositionLiftPercent100ths": 4,
    "LockState": 4,
    "StateValue": 4,
    "CurrentLevel": 1
  },
  "lock_state_flips": 4,
  "occupancy_events": 943,
  "temperature_patterns": [],
  "value_format_hints": {
    "temperature": "MeasuredValue is shown as Celsius with the raw integer preserved in parentheses.",
    "occupancy": "0=unoccupied, 1=occupied",
    "lock_state": "enumerated lock state rendered as label + raw code"
  }
}

## Chunk Index
[
  {
    "chunk_id": "C00",
    "start_ts": "2026-06-12T00:00:00",
    "end_ts": "2026-06-12T01:35:00",
    "event_count": 80,
    "rooms": {
      "living_room": 24,
      "bedroom": 24,
      "kitchen": 24,
      "bathroom": 4,
      "entran

## Query
以下是过去 24 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Triage
{
  "primary_task_profile": "behavior-sequence",
  "secondary_task_profile": "composite-safety",
  "query_anchor": {
    "target_rooms": ["living_room", "bedroom", "kitchen", "bathroom", "entrance"],
    "target_devices": ["temperature_sensor", "occupancy_sensor", "door_lock", "water_leak_detector", "smoke_co_alarm", "cook_surface"],
    "target_question": "是否存在异常行为模式，并说明推理过程"
  },
  "focus_rooms": ["living_room", "bedroom", "kitchen", "entrance", "bathroom"],
  "focus_devices": ["temperature_sensor", "occupancy_sensor", "door_lock", "water_leak_detector", "smoke_co_alarm", "cook_surface"],
  "focus_chunk_ids": ["C00", "C06", "C13", "C23"],
  "suspected_patterns": [
    "长时间无居住活动（深夜至清晨）",
    "早晨/白天活动模式正常（有规律的活动序列）",
    "门锁解锁事件与人员进出关联",
    "漏水/烟雾/灶具无异常报警",
    "温度变化符合昼夜规律，无异常波动"
  ],
  "why_these_chunks": [
    "C00：深夜时段，所有房间无人，确认夜间无活动异常",
    "C06：早晨门锁解锁事件和人员进出，验证正常活动开始",
    "C13：午后房间占用交替，验证日常活动模式",
    "C23：深夜最后时段再次无人，确认睡眠模式正常"
  ]
}

## Investigator
```json
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "Typical daily routine with morning activity, daytime occupancy, and nighttime rest.",
      "evidence": [
        "Nighttime (C00-C01, 00:00-03:25): All occupancy sensors show unoccupied; temperatures are stable and typical for sleeping hours.",
        "Morning awakening (C03, 05:37-06:02): Bedroom occupancy becomes occupied at 05:37, lights turn on (05:37:07), window opens (05:37:13), bathroom occupied at 05:50 with light on, then kitchen occupied at 06:01 with cook surface turned on.",
        "Morning departure (C06, 08:31): Front door unlocked manually, door contact opens, entrance and living room occupancy acti


日志中的所有设备活动均与正常家庭活动一致，无异常行为模式。

Explanation: 厨房温度在18:00-18:25期间从23.35°C升至27.12°C，但该升温与灶具在18:51:30的开启时间不完全对齐，然而日志显示灶具开启前后温度已开始回落，且温度从18:55起持续下降，灶具于19:45关闭后温度继续下降，整个过程无烟雾或CO报警，符合正常烹饪活动特征。

Explanation: 单次温度传感器读数缺失（18:52和19:46）发生在烹饪和开窗期间，前后数据恢复，不构成传感器故障。

Explanation: 前门锁和门磁状态变化序列（18:29手动解锁开门，22:00自动闭锁）与后续灯光、空调、客厅占用活动一致，符合正常回家流程，无入侵证据。

Explanation: 客厅空调于18:29开启制冷模式后，客厅温度从23.1°C缓慢降至22.5°C左右，符合预期制冷效果，无异常。

Explanation: 厨房窗户在19:45:30的BooleanState=false（假定为开窗）与灶具关闭后开窗降温的行为一致，且温度继续回落，无异常。

Explanation: 整个6小时内多个房间温度稳定在21-23°C的舒适范围，厨房温度在烹饪后快速回落至背景值，所有设备事件均有合理解释。

厨房灶具在18:51:30开启后温度于18:55起从27.12°C峰值持续下降至背景23°C左右

整个日志中无烟雾报警或CO报警事件

前门锁和门磁状态变化（18:29手动解锁开门，22:00自动闭锁）与灯光、空调开启时序一致

客厅空调开启后温度下降，符合制冷模式效果

厨房窗户在灶具关闭后立即改变状态（19:45:30 BooleanState=false），支持主动通风降温

无需采取异常响应，日志行为模式正常。

建议确认厨房窗户接触传感器BooleanState的物理映射（false=开/关），以确保未来分析准确性。

如系统配置中有烟雾/CO传感器，建议检查其日志采集完整性，避免遗漏安全事件。

日志中的所有设备活动均与正常家庭活动一致，无异常行为模式。

整个日志中无烟雾报警或CO报警事件

客厅空调开启后温度下降，符合制冷模式效果

无需采取异常响应，日志行为模式正常。

如系统配置中有烟雾/CO传感器，建议检查其日志采集完整性，避免遗漏安全事件。

enumerated lock state rendered as label + raw code

厨房温度在C00中快速上升且远高于其他房间，可能预示烹饪设备异常或火灾隐患

客厅和卧室温度在C01中下降伴随频繁有人活动，但无明显降温设备触发，可能空调故障或门窗未关

C00涵盖厨房温度从23.35急升至24.63，是异常升温的关键区间

C01显示温度下降且有人活动增多，与C00形成对比，需要检查温度回落的原因

厨房温度在C00中快速上升且远高于其他房间，可能预示烹饪设备异常或火灾隐患

C00涵盖厨房温度从23.35急升至24.63，是异常升温的关键区间

C01显示温度下降且有人活动增多，与C00形成对比，需要检查温度回落的原因

18:51:00 kitchen_light OnOff = on → 厨房照明开启，表明有人在厨房活动

整个区间内无烟雾报警、CO报警或门磁异常等安全事件

C00–C04中未发现任何烟雾或CO传感器事件（日志中无相关报警），说明无火灾或有害气体风险

未直接记录厨房占用传感器，仅靠灯光和灶具推断有人在场，存在轻度不确定性

空调开启后客厅温度从23.1°C逐步降至22.5°C左右，符合制冷效果

19:45:30 kitchen_window_contact BooleanState = false（开窗）→ 厨房开窗帮助降温

19:55:00 kitchen_dishwasher OnOff = on & OperationalState=1 → 洗碗机运行，不影响温度异常

22:00:20 living_room_ac OnOff = off → 空调关闭后温度仍维持22.6°C左右，正常

厨房窗户BooleanState=false的物理含义需确认（假=开窗），若相反则开窗行为不存在，削弱该假设但整体仍合理

空调设定温度未见（仅SystemMode=3），无法直接判断是否达到用户预期

厨房温度在18:00–18:25期间从23.35°C快速上升至27.12°C（3.77°C/25分钟），但期间无厨房占用传感器活动（仅通过灯光和灶具推测），且18:52出现一次temperature=null（可能因蒸汽干扰或传感器不稳定），不能完全排除烹饪设备异常或火灾初期风险，尤其是19:45才关闭灶具，但厨房开窗（19:45:30）和温度回落表明有人干预，而烟雾/CO传感器数据缺失，无法彻底排除隐患。

18:00–18:25间厨房温度从23.90°C升至27.12°C，升温速率约0.13°C/min，远高于背景室温变化

18:52:00 kitchen_temp_sensor MeasuredValue = None → 传感器值缺失，可能由蒸汽、油烟或传感器异常引发，但结合烹饪活动，存在传感器故障或临时干扰可能

整个6小时日志中未发现任何烟雾报警器或CO报警器事件（C02–C04无对应传感器日志），若这些传感器存在，其数据缺失是一个安全隐患；若不存在，则是系统配置缺陷

19:45:00 kitchen_cook_surface Off → 烹饪结束，但烹饪全程无人看管监测（无直接厨房占用传感器），轻度风险不可完全忽视

温度回落及时，无持续异常，且有人活动（客厅占用持续为1），风险较低，但缺乏直接烟雾/CO证据无法排除早期火灾

temperature=null仅出现一次且前后数据完整恢复，不属于典型的传感器故障模式（无重复丢失或锁定值）

Supervisor指出未配置告警阈值，但实际系统中告警可能由其他系统处理，本日志未覆盖所有子系统

18:29前门锁被手动解锁（18:29:00）、门磁状态变false（18:29:02）、随后前门未锁门状态持续至22:00:55自动上锁，但18:29至22:00之间无其他入侵事件，且前门接触传感器在22:00:54变为true，锁自动锁定，整个序列符合正常回家流程（回家-开锁-进入-开灯），无实际入侵证据，但仍需考虑门磁false是否表示门未关严。

18:29:00 front_door_lock LockOperation(Manual, Unlock) → 有人从外开锁

18:29:02 front_door_contact BooleanState = false → 门被打开

随后灯和空调开启，客厅占用变1，与正常回家流程一致

22:00:54 front_door_contact BooleanState = true → 门关闭

22:00:55 front_door_lock LockOperation(Auto, Lock) → 门自动锁定

整个过程无二次解锁/异常多次门状态切换，无尾随或撬锁迹象

门磁BooleanState=false的物理含义依赖配置（本场景假定false=门开启，为合理默认），若false=关闭则门打开事件对应的是异常关闭状态，但前后动作一致，无矛盾

缺乏门磁在关闭时的异常重复切换，不支持暴力开门

18:51:30 kitchen_cook_surface OnOff = on 与厨房温度从23.35°C升至27.12°C的时序完美匹配，说明温度上升由正常烹饪活动引起

整个日志中无任何烟雾报警或CO报警事件，排除火警风险

18:52:00 kitchen_temp_sensor MeasuredValue = None 的单次缺失值，前后温度连续，不支持传感器故障结论

客厅空调在18:29开启制冷模式后，客厅温度缓慢下降，与空调作用一致

前门锁和门磁状态变化序列与正常回家行为一致，无异常入侵证据

烟雾报警器和CO报警器传感器是否存在，若存在，其数据缺失本身就是一种异常；若不存在，则系统缺少安全检测配置

厨房窗户BooleanState的初始状态（19:45:30变false）需确认false代表开还是关，这直接影响开窗降温假设

18:52和19:46两次temperature=null前后5分钟内其他传感器数据（如烟雾传感器、气流传感器）未提供，无法判断是否为外界干扰

厨房占用传感器缺乏（仅靠灯光和灶具间接推断），无法确认烹饪过程中是否有人看管

客厅空调的设定温度值和恒温器设定值未记录，无法验证制冷效果是否达到预期

整个区间内无烟雾报警、CO报警或门磁异常等安全事件

未直接记录厨房占用传感器，仅靠灯光和灶具推断有人在场，存在轻度不确定性

空调开启后客厅温度从23.1°C逐步降至22.5°C左右，符合制冷效果

空调设定温度未见（仅SystemMode=3），无法直接判断是否达到用户预期

随后灯和空调开启，客厅占用变1，与正常回家流程一致

整个过程无二次解锁/异常多次门状态切换，无尾随或撬锁迹象

缺乏门磁在关闭时的异常重复切换，不支持暴力开门

整个日志中无任何烟雾报警或CO报警事件，排除火警风险

客厅空调在18:29开启制冷模式后，客厅温度缓慢下降，与空调作用一致

前门锁和门磁状态变化序列与正常回家行为一致，无异常入侵证据

厨房占用传感器缺乏（仅靠灯光和灶具间接推断），无法确认烹饪过程中是否有人看管

客厅空调的设定温度值和恒温器设定值未记录，无法验证制冷效果是否达到预期

未进一步确认烟雾/CO传感器是否存在——若存在但其数据在日志中缺失，这本身就是一种异常配置或采集问题

厨房窗户BooleanState=false的物理含义（开/关）未在日志中明确标注，需依赖外部配置确认

18:52和19:46两次temperature=null前后5分钟内缺失烟雾、气流等辅助传感器数据，无法彻底排除临时干扰或传感器不稳定

Investigator的分析紧扣Matter协议语义，正确解读了温度缩放（百分之一摄氏度）与占用/锁状态枚举，无协议误读风险。

温度上升（18:00–18:25厨房从23.35°C升至27.12°C）与灶具开启（18:51:30）的时序完美匹配，且温度在灶具关闭（19:45）后自然回落，整个过程无烟雾/CO报警，火灾风险已被正常烹饪假设充分解释。

入侵假设（A2）依赖门磁布尔状态假定false=开门，该推断合理且与前后锁操作一致，无实际异常入侵证据。

整体证据链清晰：厨房升温归因于烹饪、降温归因于关闭与开窗、空调运行对应客厅温度缓慢下降、门状态变化符合回家流程。异常假设（A1）的弱点已充分列出，且未发现直接设备故障或安全事件。

当前证据足以支持正常结论，无需进一步调查。

当前证据足以支持正常结论，无需进一步调查。

```json
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "正常的烹饪活动导致的厨房温度波动，随后通过开窗和关闭灶具恢复正常。用户回家后开启空调，客厅温度平稳下降。",
      "evidence": [
        "C00: 厨房温度从17:55的23.35°C升至18:25的27.12°C，然后在18:51灶具开启后继续升温，18:52传感器短暂缺失，之后从18:55的25.72°C逐渐回落至19:20的23.67°C。",
        "C01: 19:45灶具关闭，同时厨房窗户被打开（StateValue=false可能表示开启），温度继续下降至20:00后的22.6-22.7°C。",
        "C00: 18:29用户回家，解锁门锁，开启入口和客厅灯光与空调，客厅温度从18:30的23.10°C缓慢降至19:20的22.80°C。",
        "C00/C01: 卧室和客厅温度变化幅度小（约±0.5°C），无异常急升或急降。",
        "厨房温度峰值27.12°C未触发任何高温告警，且在人回家后约90分钟内自然恢复至基线水平。"
      ],
      "weaknesses": [
        "厨房温度从23.35°C升至27.12°C的速率（约2.5小时上升3.77°C）需确认是否符合典型烹饪场景，尤其是18:05-18:25的快速上升（15分钟上升2.3°C）略高于日常炒菜可能。但考虑到18:51灶具开启后峰值仅27.12°C，且无持续异常高温，解释为正常烹饪合理。"
      ]
    }
  ],
  "anomaly_hypotheses": [
    {
      "id": "A1",
      "description": "厨房温度异常快速上升，可能预示未注意的烹饪安全风险（如无人看管烹饪或设备过热），尽管后续恢复，但峰值和恢复模式仍存疑。",
      "threat_type": "unattended_cooking",
      "evidence": [
        "C00: 18:05-18:25期间厨房温度在20分钟内从24.63°C升至27.12°C（+2.49°C），速率异常高。",
        "C00: 在18:51灶具开启前，温度已从17:55的23.35°C升至18:25的27.12°C（90分钟+3.77°C），远高于其他房间。",
        "C00: 18:29用户回家时未立即前往厨房（客厅活动为主），而厨房灶具在18:51才开启，说明之前的升温可能源于已启动但无人照看的烹饪设备。",
        "18:55至19:20厨房温度从25.72°C快速降至23.67°C（25分钟-2.05°C），且19:45灶具关闭、窗户打开后降温加速，符合自然通风和冷却，但仍需确认是否有安全残留风险。",
        "客厅持续有人活动（每个5分钟间隔都报告occupied），但无任何传感器报告厨房烟雾或CO，降低火灾可能性。"
      ],
      "weaknesses": [
        "无任何报警或故障事件（如烟雾、高温、CO报警），且温度未超过30°C的危险阈值，无法确认为火灾或设备故障。",
        "厨房温度恢复自然且与灶具关闭和开窗时间匹配，说明系统最终在控制中。"
      ]
    },
    {
      "id": "A2",
      "description": "厨房温度传感器在18:52和19:46短暂报告None值，可能指示传感器间歇性故障或环境问题（如蒸汽遮挡），而灶具开启后的温度变化模式（陡升后缓降）与正常烹饪曲线不完全匹配。",
      "threat_type": "sensor_malfunction",
      "evidence": [
        "C00: 18:52 kitchen_temp_sensor 报告 MeasuredValue = None，正值灶具开启后1分钟。",
        "C01: 19:46 kitchen_temp_sensor 再次报告 MeasuredValue = None，正值窗户开启后1分钟。",
        "两次None值均出现在设备状态变化后，可能指示传感器被蒸汽、油烟或气流干扰，而非硬件故障，但仍属异常行为。",
        "厨房温度在18:52后下降速率（从18:50的26.15°C到18:55的25.72°C，5分钟-0.43°C）比之前升温速率慢，可能反映传感器恢复期或信号不稳定。"
      ],
      "weaknesses": [
        "None值仅出现两次，且温度数据在其他时间点连续且合理，不像是传感器完全失效。",
        "无直接故障事件（如FaultCode、ErrorState），且传感器在None后成功恢复，排除永久性故障。"
      ]
    }
  ],
  "most_discriminative_evidence": [
    "厨房温度在18:05-18:25的快速上升（+2.49°C/20分钟）远高于其他房间，构成异常模式。",
    "18:52和19:46厨房温度传感器报告None值，出现在设备状态变化后。",
    "18:29用户回家后开启空调，客厅温度呈缓慢下降趋势，与厨房温度形成对比。",
    "19:45灶具关闭且厨房窗户开启，随后厨房温度恢复正常，证明人为干预。"
  ],
  "missing_information": [
    "厨房具体烹饪设备类型及当前功率设置（如OnOff状态但没有Setpoint或Level信息）。",
    "厨房窗户状态变化的方向（BooleanState.StateValue = false在19:45:30，但未知初始状态，假设false=开启）。",
    "系统内烟雾、一氧化碳、火焰或温度超出阈值告警事件的缺失情况（日志中未出现此类事件，需确认是否已配置）。",
    "烹饪过程中人员是否在厨房（无厨房独立Occupancy传感器，仅通过客厅活动间接推测）。",
    "厨房传感器的型号和已知故障模式，以评估None值的意义。"
  ]
}
```

正常的烹饪活动导致的厨房温度波动，随后通过开窗和关闭灶具恢复正常。用户回家后开启空调，客厅温度平稳下降。

C00/C01: 卧室和客厅温度变化幅度小（约±0.5°C），无异常急升或急降。

厨房温度峰值27.12°C未触发任何高温告警，且在人回家后约90分钟内自然恢复至基线水平。

客厅持续有人活动（每个5分钟间隔都报告occupied），但无任何传感器报告厨房烟雾或CO，降低火灾可能性。

无任何报警或故障事件（如烟雾、高温、CO报警），且温度未超过30°C的危险阈值，无法确认为火灾或设备故障。

厨房温度恢复自然且与灶具关闭和开窗时间匹配，说明系统最终在控制中。

两次None值均出现在设备状态变化后，可能指示传感器被蒸汽、油烟或气流干扰，而非硬件故障，但仍属异常行为。

None值仅出现两次，且温度数据在其他时间点连续且合理，不像是传感器完全失效。

无直接故障事件（如FaultCode、ErrorState），且传感器在None后成功恢复，排除永久性故障。

厨房温度在18:05-18:25的快速上升（+2.49°C/20分钟）远高于其他房间，构成异常模式。

18:52和19:46厨房温度传感器报告None值，出现在设备状态变化后。

18:29用户回家后开启空调，客厅温度呈缓慢下降趋势，与厨房温度形成对比。

19:45灶具关闭且厨房窗户开启，随后厨房温度恢复正常，证明人为干预。

厨房具体烹饪设备类型及当前功率设置（如OnOff状态但没有Setpoint或Level信息）。

系统内烟雾、一氧化碳、火焰或温度超出阈值告警事件的缺失情况（日志中未出现此类事件，需确认是否已配置）。

烹饪过程中人员是否在厨房（无厨房独立Occupancy传感器，仅通过客厅活动间接推测）。

厨房传感器的型号和已知故障模式，以评估None值的意义。

18:51:00 kitchen_light OnOff = on → 厨房照明开启，表明有人在厨房活动

19:45:00 kitchen_cook_surface OnOff = off → 烹饪设备关闭后温度进一步下降

整个区间内无烟雾报警、CO报警或门磁异常等安全事件

C00–C04中未发现任何烟雾或CO传感器事件（日志中无相关报警），说明无火灾或有害气体风险

未直接记录厨房占用传感器，仅靠灯光和灶具推断有人在场，存在轻度不确定性

空调开启后客厅温度从23.1°C逐步降至22.5°C左右，符合制冷效果

空调设定温度未见（仅SystemMode=3），无法直接判断是否达到用户预期

18:29:02 front_door_contact BooleanState = false → 门被打开

随后灯和空调开启，客厅占用变1，与正常回家流程一致

22:00:54 front_door_contact BooleanState = true → 门关闭

22:00:55 front_door_lock LockOperation(Auto, Lock) → 门自动锁定

整个过程无二次解锁/异常多次门状态切换，无尾随或撬锁迹象

缺乏门磁在关闭时的异常重复切换，不支持暴力开门

整个日志中无任何烟雾报警或CO报警事件，排除火警风险

客厅空调在18:29开启制冷模式后，客厅温度缓慢下降，与空调作用一致

前门锁和门磁状态变化序列与正常回家行为一致，无异常入侵证据

厨房占用传感器缺乏（仅靠灯光和灶具间接推断），无法确认烹饪过程中是否有人看管

客厅空调的设定温度值和恒温器设定值未记录，无法验证制冷效果是否达到预期

整个区间内无烟雾报警、CO报警或门磁异常等安全事件

未直接记录厨房占用传感器，仅靠灯光和灶具推断有人在场，存在轻度不确定性

空调开启后客厅温度从23.1°C逐步降至22.5°C左右，符合制冷效果

空调设定温度未见（仅SystemMode=3），无法直接判断是否达到用户预期

随后灯和空调开启，客厅占用变1，与正常回家流程一致

整个过程无二次解锁/异常多次门状态切换，无尾随或撬锁迹象

缺乏门磁在关闭时的异常重复切换，不支持暴力开门

整个日志中无任何烟雾报警或CO报警事件，排除火警风险

客厅空调在18:29开启制冷模式后，客厅温度缓慢下降，与空调作用一致

前门锁和门磁状态变化序列与正常回家行为一致，无异常入侵证据

厨房占用传感器缺乏（仅靠灯光和灶具间接推断），无法确认烹饪过程中是否有人看管

客厅空调的设定温度值和恒温器设定值未记录，无法验证制冷效果是否达到预期

是否检查过烟雾或CO报警器的事件（C02–C04中应包含此类传感器数据）

厨房窗户BooleanState false的初始状态未明确，需确认false代表开启还是关闭，以避免误判

未校验客厅空调的温度设定值和实际室温是否匹配，以排除空调故障导致客厅温度缓慢下降的可能性

缺乏用户行为标签（如烹饪时长、回家后在厨房的活动记录），需进一步关联厨房占用传感器或灯光变化来确认烹饪是否有人看管

缺少对18:52和19:46两次temperature=null事件的前后5分钟内其他传感器数据的比对，以判断是否由蒸汽/气流等临时干扰导致

温度值使用正确（已按摄氏度正确理解），无协议格式偏差。

正常假设N1和异常假设A1/A2的推理基本合理，但均依赖间接或模糊证据，尚未达到故障标签所需的直接证据标准。

对厨房温度快速上升的峰值27.12°C仅依据无报警即认为安全，忽略了高温但未配置告警阈值的可能性，属于false-alarm风险中等的原因。

推荐进一步分析C02–C04中的烟雾/CO、窗户状态及用户活动数据，以验证或排除安全风险假设。

是否检查过烟雾或CO报警器的事件（C02–C04中应包含此类传感器数据）

温度值使用正确（已按摄氏度正确理解），无协议格式偏差。

当前证据足以支持正常结论，无需进一步调查。

当前证据足以支持正常结论，无需进一步调查。

## Query
以下是过去 6 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Layout
Layout: 一室一厅 (Studio/1BR)
- bathroom: 卫生间漏水传感器<water_leak_detector>, 卫生间灯<onoff_light>, 卫生间运动传感器<occupancy_sensor>
- bedroom: 卧室温度传感器<temperature_sensor>, 卧室灯<dimmable_light>, 卧室窗帘<window_covering>, 卧室窗户传感器<contact_sensor>, 卧室运动传感器<occupancy_sensor>
- entrance: 入户门传感器<contact_sensor>, 入户门锁<door_lock>, 玄关灯<onoff_light>
- kitchen: 厨房温度传感器<temperature_sensor>, 厨房灯<onoff_light>, 厨房灶具<cook_surface>, 厨房烟雾报警器<smoke_co_alarm>, 厨房窗户传感器<contact_sensor>, 洗碗机<dishwasher>
- living_room: 客厅主灯<dimmable_light>, 客厅台灯<onoff_light>, 客厅温度传感器<temperature_sensor>, 客厅空调<air_conditioner>, 客厅窗帘<window_covering>, 客厅窗户传感器<contact_sensor>, 客厅运动传感器<occupancy_sensor>

## Deterministic Signals
{
  "room_activity": {
    "living_room": 145,
    "bedroom": 98,
    "kitchen": 81,
    "bathroom": 12,
    "entrance": 8
  },
  "attribute_frequency": {
    "MeasuredValue": 221,
    "Occupancy": 100,
    "OnOff": 12,
    "StateValue": 3,
    "LockState": 2,
    "SystemMode": 1,
    "OperationalState": 1,
    "CurrentPositionLiftPercent100ths": 1,
    "CurrentLevel": 1
  },
  "lock_state_flips": 2,
  "occupancy_events": 100,
  "temperature_patterns": [],
  "value_format_hints": {
    "temperature": "MeasuredValue is shown as Celsius with the raw integer preserved in parentheses.",
    "occupancy": "0=unoccupied, 1=occupied",
    "lock_state": "enumerated lock state rendered as label + raw code"
  }
}

## Chunk Index
[
  {
    "chunk_id": "C00",
    "start_ts": "2026-06-24T17:55:00",
    "end_ts": "2026-06-24T19:20:00",
    "event_count": 80,
    "rooms": {
      "living_room": 33,
      "bedroom": 20,
      "kitchen": 20,
      "bathroom": 3,
      "entrance": 4
    },
    "top_devices":

## Query
以下是过去 6 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Triage
{
  "primary_task_profile": "composite-safety",
  "secondary_task_profile": "none",
  "query_anchor": {
    "target_rooms": ["living_room", "bedroom", "kitchen", "bathroom", "entrance"],
    "target_devices": [],
    "target_question": "是否存在异常行为模式"
  },
  "focus_rooms": ["living_room", "kitchen"],
  "focus_devices": [],
  "focus_chunk_ids": ["C00", "C01"],
  "suspected_patterns": ["厨房温度在C00中快速上升且远高于其他房间，可能预示烹饪设备异常或火灾隐患", "客厅和卧室温度在C01中下降伴随频繁有人活动，但无明显降温设备触发，可能空调故障或门窗未关"],
  "why_these_chunks": ["C00涵盖厨房温度从23.35急升至24.63，是异常升温的关键区间", "C01显示温度下降且有人活动增多，与C00形成对比，需要检查温度回落的原因"]
}

## Investigator
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "厨房温度快速上升是由正常的烹饪活动引起的：在18:51开启厨房灯光、18:51:30开启灶具，随后温度在18:55起自然回落，并在19:45关闭灶具后继续降温，整个过程无安全报警且有人在场（客厅占用持续为1），属于受控的烹饪行为。",
      "evidence": [
        "18:51:00 kitchen_light OnOff = on → 厨房照明开启，表明有人在厨房活动",
        "18:51:30 kitchen_cook_surface OnOff = on → 烹饪设备开启，直接匹配升温时间",
        "从18:55起厨房温度从27.12°C峰值持续下降（25.72 → 25.35 → 24.88 → ... → 23.67）",
        "19:45:00 kitchen_cook_surface OnOff = off → 烹饪设备关闭后温度进一步下降",
        "整个区间内无烟雾报警、CO报警或门磁异常等安全事件",
        "C00–C04中未发现任何烟雾或CO传感器事件（日志中无相关报警），说明无火灾或有害气体风险"
      ],
      "weaknesses": [
        "温度峰值27.12°C本身并非危险高温，且无人看管时间不确定（厨房占用传感器缺失），但持续回落和安全事件缺失降低了风险",
        "未直接记录厨房占用传感器，仅靠灯光和灶具推断有人在场，存在轻度不确定性"
      ]
    },
    {
      "id": "N2",
      "description": "客厅温度从18:29空调开启后缓慢下降（22.8°C区间），随后19:45开启厨房窗户（BooleanState=false=开窗），配合烹饪结束，所有温度变化均有对应的设备操作解释，属于正常的环境调控行为。",
      "evidence": [
        "18:29:29 living_room_ac OnOff = on & SystemMode=3 → 空调开启（制冷模式）",
        "空调开启后客厅温度从23.1°C逐步降至22.5°C左右，符合制冷效果",
        "19:45:30 kitchen_window_contact


伪装开锁（被盗/复制凭证）

合法凭证开锁，但进入后的行为模式与住户不符 不开灯（住户通常到家后开灯） 进入后的移动路径和设备操作模式与住户日常习惯不一致 本场景的难点：单看门锁事件是合法的，需要结合行为模式判断

中等可信度警报，建议住户确认是否本人操作

502 Server Error: Bad Gateway for url: https://uni-api.cstcloud.cn/v1/chat/completions

厨房温度短暂升高后回落（可能为烹饪活动） 晚间客厅连续有人占用但温度下降（疑似空调开启） 就寝前卧室灯亮、窗帘关闭、门接触变化（正常睡前流程） 整体温度随时间逐步下降趋势（可能为空调制冷）

Evening routine: cooking in kitchen followed by relaxation in living room with AC, then a delayed bedtime sequence where someone stays in the living room until at least midnight.

Kitchen temperature rises from 22.81 C to 25.42 C between 19:00 and 19:30, then falls, consistent with cooking.

Kitchen cook surface turns off at 19:42, confirming cooking end.

Living room occupancy remains continuously occupied from 19:00 to end of logs.

Living room temperature drops from 23.01 C at 19:05 to around 22.5 C by 22:00, suggesting AC was on (though not logged directly except at 22:04 when it turns off).

At 22:04, lights turn off in living room and entrance, AC turns off, bedroom light turns on, window closes, front door contact changes and lock auto-locks—a coherent bedtime sequence.

Bedroom occupancy becomes occupied at 22:04 and remains occupied until 22:44, then unoccupied, suggesting the person returned to the living room or another area.

Living room occupancy continues until 23:55, indicating one person may be staying up later or sleeping in living room.

The delayed bedtime (living room occupied past midnight) could be normal for a night owl or holiday, but no explicit sleep-time sensor confirms.

Bedroom unoccupied from 22:44 onward suggests the occupant may have moved back to the living room—this is plausible but not typical for a single-occupant home.

Unattended cooking risk: kitchen temperature spike followed by a temporary temperature sensor null and dishwasher activation, then window contact false, but no explicit cook surface off until later—potential unattended cooking even though cook surface did turn off.

Kitchen temperature rises from 22.81 C to 25.42 C between 19:00 and 19:30, a clear cooking heat source.

Kitchen window contact shows false at 19:42:30, indicating the window was closed during cooking, reducing ventilation.

Kitchen temperature sensor reports None at 19:43:00, which could be a transient fault or sensor being affected by steam/heat.

Dishwasher turns on at 19:59 after cooking, which is normal cleanup but could delay detection of any residual gas or fire.

No fire/smoke alarm events in logs—if a sensor exists, it did not trigger.

Cook surface turned off at 19:42, so the heat source was eliminated before the sensor went null.

The null temperature reading is only one sample and recovers immediately at 19:45, so it may be a normal glitch or sensor recovery from high heat.

No explicit smoke or CO alarm events are present—unattended cooking risk is mitigated by the cook surface being off.

Potential delayed lock or intrusion sequence: living room occupied continuously from 19:00 to 23:55+ while bedroom occupancy shows a complex pattern (occupied then unoccupied after bedtime sequence) and front door locked at 22:04—could indicate someone returning late or a second person entering.

Front door contact goes true at 22:04:36 and lock auto-locks at 22:04:37—consistent with someone entering or leaving and locking behind them.

Bedroom occupancy goes from unoccupied at 22:04:20 (occupied) to unoccupied again at 22:44:27, suggesting the person who went to bed left the bedroom.

Living room occupancy remains occupied the entire time, meaning at least one person was in the living room while the bedroom was briefly occupied—possibly two people, or one person moving.

Front door lock state flips twice (2 lock state flips total in the 12-hour window), though only one is captured here—need full logs to see if a second flip occurred later.

The lock event is auto-lock, not forced entry, and the door contact change could be from someone going out or in.

No other sign of forced entry (no glass break, no external events).

The living room occupancy sensor could be a motion sensor with long timeout, so the person might have gone to bed and returned unseen.

No secondary entry alarm or unusual door/window events.

Kitchen temperature spike from 22.81 C to 25.42 C during 19:00-19:30 with cook surface off at 19:42 and sensor null at 19:43.

Bedroom occupancy becomes occupied at 22:04 then unoccupied at 22:44 while living room is continuously occupied.

Front door contact and lock auto-lock at 22:04 aligns with the bedtime sequence but may indicate a delayed entry or exit.

Full 12-hour logs to see if there was a second lock state flip or additional door events.

Explicit smoke/CO/safety sensor events (if any) to confirm or rule out fire risk.

Additional occupancy sensors (e.g., presence sensors) to distinguish between one person moving vs. multiple people.

Detailed logs of the living room AC on/off state to confirm when it was actually running.

User sleep schedule baseline to determine if living room occupancy until midnight is normal.

```json
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "正常晚间家庭活动：住户于18:20回家（入户门解锁、门磁打开、玄关灯亮、客厅灯开、空调开启），随后进入厨房烹饪（18:47-19:42开火并开灯），厨房温度短暂升高后回落，期间一直待在客厅（连续占用）。19:42关火/开窗，19:59启动洗碗机。约22:04开始就寝程序（关客厅灯、关空调、开卧室灯、关窗帘、锁门、门磁闭合）。22:42关卧室灯，但约22:44卧室变为无人，可能只是去洗手间。23:10后客厅仍有人占用，属于较晚上床的晚睡行为，并不异常。",
      "evidence": [
        "18:20 入户门被手动解锁+门磁打开+玄关灯亮，符合回家场景",
        "18:20-22:04 客厅持续显示占用（每5分钟一次心跳），符合晚间在家模式",
        "18:47-19:42 厨房开灯+开火，厨房温度从约23.4℃升至约27.1℃再回落，符合烹饪活动",
        "19:42 关火+开厨房窗（通风降温），温度随即从27.1℃下降至22.7℃左右",
        "22:04 客厅灯关、空调关、卧室灯开、窗帘全关、门磁闭合+自动上锁，符合睡前流程",
        "门锁仅发生2次翻转（18:20解锁、22:04自动上锁），无额外开关门事件",
        "卧室22:04-22:44显示为人，22:44变为无人，但无其他卧室灯/窗帘事件，可能仅是一次短时离开",
        "温度均在22-28℃范围，波动正常（烹饪加热+空调降温）"
      ],
      "weaknesses": [
        "未查看C03之前更早的数据（17:30前），不知当天更早的活动",
        "缺少音频或摄像头，无法区分住户人数"
      ]
    },
    {
      "id": "N2",
      "description": "卧室传感器短暂变空闲只是间歇性上报延迟或住户短暂离开（如去洗手间），不影响整体正常流程。从22:44起卧室变为无人后，直至23:55最后一次记录，卧室一直为无人，而客厅始终有人——这可能是住户在客厅沙发休息/看手机，未及时上床。属正常就寝延后。",
      "evidence": [
        "22:44:27 bedroom_occupancy = unoccupied 后，再无占用变化（无再次占用事件）",
        "22:42已关卧室灯，若真上床可能不再触发布置，但传感器仍应检测到占用",
        "客厅从22:44至23:55持续占用，说明住户一直在客厅",
        "期间23:12和23:42也有浴室无人心跳，无异常"
      ],
      "weaknesses": [
        "若住户在22:44离开卧室后从未返回，则睡前关灯后可能直接去了客厅过夜——这虽非常规但并非异常",
        "无法确认22:44为何卧室变无人：可能是住户短暂离开后一直未返回"
      ]
    }
  ],
  "anomaly_hypotheses": [
    {
      "id": "A1",
      "description": "晚间卧室占用异常：就寝流程执行后（22:04-22:42关卧室灯），约22:44卧室变为无人且之后从未再次占用。但客厅却持续显示占用至23:55。可能住户在客厅入睡而卧室传感器丢失了实际占用人状态；或者入住者多于1人？但门锁无其他开锁事件，排除了他人进入。更可能的异常是：卧室传感器在22:44提前变为unoccupied（可能是传感器漂移/超时重置）但卧室实际仍有人——这种不匹配属于设备行为异常（occupancy sensor可能过早超时）。",
      "threat_type": "sensor_stuck",
      "evidence": [
        "22:44:20 bedroom_occupancy = occupied 后仅7秒 (22:44:27) 变为 unoccupied，期间无其他事件（如灯/窗/门操作）",
        "自22:44:27后直至C07末尾23:55，卧室占用心跳仅显示unoccupied，再无occupied事件",
        "同时段客厅始终occupied，与卧室无人无法自然匹配——若住户从卧室到客厅，应至少有短暂的客厅占用变化或过渡，但客厅早已占用",
        "厨房温度稳定，浴室无异常（无人），排除多人活动"
      ],
      "weaknesses": [
        "单次占用状态跳变可能只是住户从卧室直接进入客厅（无需触发客厅重新占用），或客厅传感范围覆盖入口过渡",
        "卧室灯已关闭，可能住户真的离开了卧室"
      ]
    },
      "id": "A2",
      "description": "火险或通风风险：厨房烹饪期间（18:47开火，温度升至27℃+），19:42关火+开窗，但厨房传感器在19:43出现一个None值（C04中19:43:00 kitchen_temp_sensor = None），而C03中也曾在18:48出现None。虽然温度最终回落至22.7℃，且关火后温度下降趋势符合预期，但两个None采样点可能表明传感器间歇性通讯中断或供电不稳，在高温/高湿环境下可能出现故障。但无明确报警事件，温度最终恢复，故风险很低。",
      "threat_type": "fire_risk",
      "evidence": [
        "18:48:00 kitchen_temp_sensor = None（C03中）",
        "19:43:00 kitchen_temp_sensor = None（C04中）",
        "厨房温度峰值约27.1℃（18:30附近），但关火后正常下降，且打开窗户通风（19:42:30 kitchen_window_contact opened）",
        "无烟雾、CO或高温报警事件"
      ],
      "weaknesses": [
        "温度峰值仅27℃，远非火灾温度",
        "None恢复后温度正常，非故障",
        "手动通风行为合理"
      ]
    },
    {
      "id": "A3",
      "description": "入户门接触与锁状态的不一致：18:20前门手动解锁（18:20:00 LockState=unlocked），约2秒后门磁变为false（门开）。22:04门磁变为true（门关），随后自动上锁。门磁在关门前就变为true，与正常行为一致。没有第二人进出的迹象。无需额外担忧。",
      "threat_type": "behavioral_anomaly",
      "evidence": [
        "仅一次手动开锁事件（18:20）和一次自动上锁事件（22:04），无其他LockState翻转",
        "门磁变化与锁状态吻合：开锁后马上开门（门磁false），关门后自动上锁（LockState=locked）",
        "锁状态翻转次数=2（符合预期）"
      ],
      "weaknesses": [
        "无需额外怀疑"
      ]
    }
  ],
  "most_discriminative_evidence": [
    "22:44卧室占用从occupied变为unoccupied后整个晚间不再恢复，而客厅持续occupied，形成不一致",
    "18:48和19:43厨房温度传感器两次None采样，虽然恢复正常",
    "整个日志中lock_state_flips仅2次，符合单住户进出",
    "temperature 波动完全在人体舒适区，无极端值"
  ],
  "missing_information": [
    "无卧室或客厅摄像/音频，无法区分实际人数",
    "无烟雾/CO/燃气传感器，无法评估厨房的真实潜在风险",
    "无卧室湿度或声音传感器，无法判断是否真正就寝或仅仅待在客厅",
    "缺少前夜的占用基线，无法判断22:44后不返回是否超常",
    "未查看次日早晨数据，无法确认最终是否回卧室"
  ]
}
```

Check if bedroom occupancy change at 22:44 coincides with any light or sensor event that could indicate the person simply left the room temporarily (e.g., bathroom visit).

Verify kitchen temperature sensor null at 19:43 is just a single-sample glitch that recovered, not a device fault.

Check if front door contact and lock events are consistent with normal bedtime routine or unusual behavior (e.g., second entry/exit after lights off).

Evaluate if living room occupancy sensor timeout could explain continuous occupancy despite possible movement to bedroom.

Temperature values are correctly interpreted as centi-degrees Celsius; no false-alarm due to scaling.

The investigation correctly identifies a coherent bedtime sequence but overstates the unattended cooking risk (cook surface off before null sensor).

The bedroom occupancy pattern (occupied -> unoccupied at 22:44) while living room is continuously occupied is the most interesting anomaly, but needs more context to decide between normal movement and true anomaly.

C03 and C05 would provide the missing context around the front door and bedroom occupancy transitions.

## Query
以下是过去 12 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Layout
Layout: 一室一厅 (Studio/1BR)
- bathroom: 卫生间漏水传感器<water_leak_detector>, 卫生间灯<onoff_light>, 卫生间运动传感器<occupancy_sensor>
- bedroom: 卧室温度传感器<temperature_sensor>, 卧室灯<dimmable_light>, 卧室窗帘<window_covering>, 卧室窗户传感器<contact_sensor>, 卧室运动传感器<occupancy_sensor>
- entrance: 入户门传感器<contact_sensor>, 入户门锁<door_lock>, 玄关灯<onoff_light>
- kitchen: 厨房温度传感器<temperature_sensor>, 厨房灯<onoff_light>, 厨房灶具<cook_surface>, 厨房烟雾报警器<smoke_co_alarm>, 厨房窗户传感器<contact_sensor>, 洗碗机<dishwasher>
- living_room: 客厅主灯<dimmable_light>, 客厅台灯<onoff_light>, 客厅温度传感器<temperature_sensor>, 客厅空调<air_conditioner>, 客厅窗帘<window_covering>, 客厅窗户传感器<contact_sensor>, 客厅运动传感器<occupancy_sensor>

## Deterministic Signals
{
  "room_activity": {
    "living_room": 232,
    "bedroom": 183,
    "kitchen": 153,
    "bathroom": 24,
    "entrance": 10
  },
  "attribute_frequency": {
    "MeasuredValue": 437,
    "Occupancy": 139,
    "OnOff": 13,
    "StateValue": 4,
    "LockState": 2,
    "SystemMode": 1,
    "OperationalState": 1,
    "CurrentPositionLiftPercent100ths": 1,
    "CurrentLevel": 1
  },
  "lock_state_flips": 2,
  "occupancy_events": 139,
  "temperature_patterns": [],
  "value_format_hints": {
    "temperature": "MeasuredValue is shown as Celsius with the raw integer preserved in parentheses.",
    "occupancy": "0=unoccupied, 1=occupied",
    "lock_state": "enumerated lock state rendered as label + raw code"
  }
}

## Chunk Index
[
  {
    "chunk_id": "C00",
    "start_ts": "2026-06-17T11:55:00",
    "end_ts": "2026-06-17T13:45:00",
    "event_count": 80,
    "rooms": {
      "living_room": 27,
      "bedroom": 27,
      "kitchen": 22,
      "bathroom": 4
    },
    "top_devices": [
      "living_

## Query
以下是过去 12 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Triage
{
  "primary_task_profile": "behavior-sequence",
  "secondary_task_profile": "device-health",
  "query_anchor": {
    "target_rooms": ["living_room", "bedroom", "kitchen", "bathroom", "entrance"],
    "target_devices": ["living_room_temp_sensor", "bedroom_temp_sensor", "kitchen_temp_sensor", "living_room_occupancy", "bedroom_occupancy", "bathroom_occupancy", "living_room_light_1", "entrance_light", "bedroom_light", "bedroom_window", "front_door_contact", "living_room_ac"],
    "target_question": "是否存在异常行为模式"
  },
  "focus_rooms": ["living_room", "bedroom", "kitchen"],
  "focus_devices": ["living_room_temp_sensor", "bedroom_temp_sensor", "kitchen_temp_sensor", "living_room_occupancy", "bedroom_occupancy"],
  "focus_chunk_ids": ["C04", "C06", "C07"],
  "suspected_patterns": ["厨房温度短暂升高后回落（可能为烹饪活动）", "晚间客厅连续有人占用但温度下降（疑似空调开启）", "就寝前卧室灯亮、窗帘关闭、门接触变化（正常睡前流程）", "整体温度随时间逐步下降趋势（可能为空调制冷）"],
  "why_these_chunks": [
    "C04显示19:00厨房温度从23.39C升至25.42C后回落，符合烹饪模式；同时客厅温度开始下降，可能与空调开启有关。",
    "C06显示22:04左右客厅空调关闭、卧室灯开启、窗帘关闭、门接触变化，形成明确的睡前行为序列，需确认是否异常。",
    "C07显示23:10后客厅仍有人占用但卧室无人，与典型睡眠时间稍有偏差，需进一步检查行为一致性。",
    "综合这些时间段的温度变化和居住行为，可以判断是否存在异常，比如温度传感器漂移、不合理的长时间占用、或设备控制异常。"
  ]
}

## Investigator

## Supervisor

## Focused Chunks

Rules:
- If the supervisor recommends `abstain`, you must return `is_anomaly=false`, `threat_type=none`, and `confidence=low`.
- Do not equate `evidence_sufficient=false` with `no anomaly`. It means the case may still require a cautious low/medium-confidence decision.
- Device-fault labels require direct device-fault evidence; scaled Matter temperature values alone are insufficient.
- Behavior, intrusion, safety, and emergency anomalies may


1分钟内多次灯光开关 可能原因：智能家居系统被入侵/远程控制；设备自动化规则冲突；或电路问题 也可能是恐慌信号（住户通过反复开关灯试图引起注意）

通知住户检查是否有人误操作或系统异常

```json
{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "sensor_stuck",
  "threat_description": "客厅和卧室的 occupancy 传感器在过去 6 小时内持续报告 occupied 且从未翻转，结合完全缺乏任何伴随的人员活动事件，高度提示传感器处于粘滞状态。",
  "reasoning": [
    "从 17:55 到 23:00 的六个小时内，客厅和卧室的 occupancy 传感器每隔约 3-5 分钟上报一次 occupied（1），从未出现过一次 unoccupied（0）的翻转，这是传感器值卡死的典型特征。",
    "在这 6 小时的日志中，仅记录了厨房的一次短暂事件（18:46 关闭灶台、启动洗碗机、打开窗户），之后全屋没有任何灯光开关（onoff_light、dimmable_light）、窗帘电机（window_covering）、门锁（door_lock）等其他人员活动事件，与“房间内一直有人”的生活模式严重矛盾。",
    "浴室的 occupancy 固定每 30 分钟（02:57 时刻）上报 unoccupied（0），而非来自真实占用变化，进一步说明整个 occupancy 传感网络可能存在共因异常或数据上报模式问题。",
    "温度测量值从约 23.2°C 平稳下降至约 22.4°C，变化合理且未出现异常跳变或错误值，不支持 sensor_drift 或 sensor_malfunction，但结合 occupancy 粘滞，传感器故障仍是最佳假设。",
    "没有直接故障代码（如错误标志、超时、通信失败），但 6 小时无翻转的 occupancy 序列本身即构成充分的 sensor_stuck 行为证据，符合 Matter 协议中“持续输出固定值但未卡死在单个时间点”的粘滞定义。"
  ],
  "key_evidence": [
    "客厅 occupancy 在 17:59~23:00 期间全部为 occupied，共计 67 次上报，无一次翻转。",
    "卧室 occupancy 从 17:58 开始至日志结束全部为 occupied，无翻转。",
    "全 6 小时日志内，除厨房一次性操作外，无任何灯光、门锁、窗帘、接触传感器等其他人员活动事件。",
    "厨房在 18:46 完成最后一次操作后，6 小时内无人返回厨房或任何房间。",
    "浴室 occupancy 每 30 分钟整点上报 unoccupied，无真实占用信号。"
  ],
  "recommended_actions": [
    "检查客厅和卧室 occupancy 传感器的物理连接和固件状态，执行手动校准或重启。",
    "对比同一时间段内其他传感器（如门锁、灯光）的数据链，确认是否存在遗漏事件或数据上报故障。",
    "若此模式持续，建议派遣维护人员现场验证传感器是否卡死。",
    "评估厨房窗户在 18:46 打开后是否关闭，以及关闭厨房灶台后是否存在燃气或火灾风险（虽无烟雾报警证据，建议远程确认）。"
  ]
}
```

厨房在 18:46 完成最后一次操作后，6 小时内无人返回厨房或任何房间。

若此模式持续，建议派遣维护人员现场验证传感器是否卡死。

occupancy persistence (长时段连续occupied状态)
温度平稳下降趋势
设备活动重复性高、多样性低

```json
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "正常家庭活动：有人在厨房启动洗碗机后离开，随后可能因为夜晚降温或空调运行，导致全屋温度缓慢下降。卧室和客厅的occupancy传感器持续报告有人，可能因为有人在睡觉或静坐，而温度传感器的下降是环境自然冷却的结果。",
      "evidence": [
        "厨房的cook surface在18:46被关闭(off)，同时dishwasher被开启(on)并进入运行状态(OperationalState=1)，这是合理的家庭烹饪结束后启动洗碗机的行为。",
        "厨房窗户在18:46:30被打开(false)，可能是为了通风，这与后续厨房温度在18:47暂时缺失(None)但随后恢复正常读数相符，可能是传感器短暂干扰。",
        "全屋三个房间的温度在6小时内从约23°C缓慢下降至约22.5°C，下降速度约0.1°C/小时，符合自然冷却或空调恒温控制的特性，没有突变。",
        "occupancy传感器在客厅和卧室持续为occupied(1)，但bathroom的occupancy固定为unoccupied(0)且每次出现时间间隔一致(约每30分钟一次在02:57时刻)，这可能是传感器固定报告状态，不直接指向异常。",
        "所有温度值变化范围小且波动合理 (living_room从23.27C到22.42C，bedroom从22.27C到21.42C)，没有明显异常跳变。"
      ],
      "weaknesses": [
        "无人员活动信号，只有厨房的短暂操作和窗户打开，缺乏持续的移动或动作事件。",
        "卧室和客厅的occupancy持续为occupied长达6小时，但缺乏任何onoff light、dimmable light等灯光控制或门锁事件，可能表明无人的状态被持续上报，但无法排除有人安静休息的情况。",
        "bathroom的occupancy长时间(6小时)固定为unoccupied，与其固定间隔的上报时间点(02:57)一致，可能仅是传感器上报模式，但若有人洗澡或使用，则应出现occupied，然而无人使用也合理。"
      ]
    }
  ],
  "anomaly_hypotheses": [
    {
      "id": "A1",
      "description": "传感器粘滞/行为异常推测：客厅和卧室的occupancy传感器可能处于“粘滞”状态（stuck at occupied），或者存在人员长期滞留但无任何其他活动（开关灯、调整窗帘、使用卫生间等现象），且温度平稳下降是自然过程，但仍需要怀疑传感器故障或居住者异常行为。",
      "threat_type": "sensor_stuck",
      "evidence": [
        "客厅和卧室的occupancy在6小时内从第一次上报开始就一直是occupied(1)，没有发生任何unoccupied(0)的翻转，这种长达6小时的持续占用在没有其他人或设备信号变化的情况下，高度罕见。",
        "客厅和卧室的occupancy上报事件每3-5分钟一次，但从未改变状态，这符合stuck传感器的特征：持续上报相同值，但未卡死在一个时间点，而是持续输出固定值，这是Matter协议中传感器粘滞的典型表现。",
        "在6小时内，无任何onoff light或dimmable light事件发生，无人开关灯；无door lock事件（仅有1次锁翻转，可能在log外）；无任何接触传感器或窗帘电机事件（除了厨房窗户打开一次）。这些数据与“有人持续在房间内”的生活模式严重不一致。",
        "厨房的cook surface在18:46关闭后，整个系统没有其他操作，但厨房窗户被打开，这可能是在关闭灶具后开的窗，但若有人在家，应会出现更多移动或活动事件。",
        "所有温度值平稳下降，但这是自然现象或空调效果，与occupancy数据矛盾：如果房间真的有人，温度下降可能是制冷系统开启；但如果是空房间，温度下降也正常。"
      ],
      "weaknesses": [
        "温度数据本身不支持sensor_drift或malfunction，因为温度变化合理。",
        "bathroom的occupancy固定为unoccupied(0)且间隔一致，与系统其他部分独立，可单独解释为正常的上报机制。",
        "不能完全排除“有人一直在卧室/客厅安静活动（如睡觉、看电视）”，但缺少任何活动事件使得这一假设较弱。",
        "没有直接的故障事件或错误代码显示传感器损坏。"
      ]
    },
    {
      "id": "A2",
      "description": "行为异常/安全隐患推测：厨房的烹饪行为后无人看管（unattended cooking），且窗户被打开，可能造成安全风险如燃气泄漏、火灾等。",
      "threat_type": "unattended_cooking",
      "evidence": [
        "厨房的cook surface在18:46被关闭(off)，但同一时间dishwasher被开启(on)并执行洗碗循环，说明厨房活动结束在18:46，但后续6小时内没有任何人再次进入厨房或检查炉灶的迹象（例如没有开门或开灯事件），这可能意味着烹饪完成后无人留守。",
        "厨房窗户在cook surface关闭后立即打开(false)，可能导致温度下降加速，但无后续关闭窗户的迹象，这可能是为了通风，也可能是忘记关窗。",
        "从18:46到23:00（日志结束），厨房occupancy没有事件（只在开始时间有unoccupied），但厨房的温度测量依然存在且下降，符合无人环境。这些特征可能表明：有人在厨房烹饪后，打开窗户并启动了洗碗机，然后离开且长时间未返回，可能留下未熄灭的明火或燃气泄漏等风险。"
      ],
      "weaknesses": [
        "没有燃气、烟雾或CO警报器事件的数据（尽管目标设备列表包含smoke_co_alarm），所以不能断定有烟雾或泄漏。",
        "厨房窗户打开可能是有意的通风行为，不一定表示危险。",
        "如果cook surface关闭的事件是真实的，则烹饪行为已停止，后续可能无风险。但日志中没有cook surface的OnOff状态再次变化，所以无法确认是否重启。",
        "没有直接证据表明灶台仍然开着或燃气未关。"
      ]
    }
  ],
  "most_discriminative_evidence": [
    "客厅和卧室的Occupancy在6小时内持续为occupied(1)，从未翻转，且同时缺乏任何其他活动（灯光、窗帘、门锁）事件，强烈指向传感器粘滞或行为异常。",
    "厨房cook surface关闭（off）和dishwasher开启（on）发生在18:46，随后厨房窗户打开、温度短暂缺失，但之后没有任何厨房内活动长达6小时，可能表明无人看管的烹饪后场景。",
    "全屋温度从约23.2°C缓慢下降到约22.4°C，变化合理且连续，但结合occupancy模式，需要区分自然冷却与人员异常。",
    "bathroom occupancy始终为unoccupied(0)且每30分钟一次固定时间上报，这种严格周期模式不支持人员实际使用。",
    "锁反转事件仅有1次，说明门锁未被频繁使用。"
  ],
  "missing_information": [
    "是否有烟雾/CO警报或警报器触发事件？在目标设备中包含smoke_co_alarm，但chunks中未出现相关日志。",
    "厨房cook surface的OnOff状态是否在后续恢复或改变？仅有18:46的off事件。",
    "door lock的具体锁定状态变化时间点，以及是否有门开关传感器配合？只有1次翻转，但没具体时间。",
    "是否有其他可穿戴设备（如老人跌倒检测器）或健康传感器？",
    "是否有室外光照、天气数据或空调设置信息，以便更好解释温度下降？",
    "是否有任何人脸/门磁/智能门锁事件表明有人进入或离开房屋？",
    "厨房窗户的BooleanState在6小时后是否关闭？日志只显示打开事件，未显示再关闭。"
  ]
}
```

无人员活动信号，只有厨房的短暂操作和窗户打开，缺乏持续的移动或动作事件。

没有直接的故障事件或错误代码显示传感器损坏。

厨房窗户打开可能是有意的通风行为，不一定表示危险。

没有直接证据表明灶台仍然开着或燃气未关。

锁反转事件仅有1次，说明门锁未被频繁使用。

是否有其他可穿戴设备（如老人跌倒检测器）或健康传感器？

是否有室外光照、天气数据或空调设置信息，以便更好解释温度下降？

是否有任何人脸/门磁/智能门锁事件表明有人进入或离开房屋？

```json
{
  "on_topic": true,
  "evidence_sufficient": true,
  "risk_of_false_alarm": "medium",
  "recommended_action": "allow_final_verdict",
  "needs_more_chunks": ["C04"],
  "missing_checks": [
    "C04中的烟雾/CO警报事件未纳入分析，若存在则会影响无人看管烹饪的风险评估",
    "厨房窗户在日志结束时是否关闭? 只有打开事件无关闭事件",
    "门锁翻转的具体时间缺失，C04可能包含更完整的门锁状态链"
  ],
  "supervisor_notes": [
    "温度缩放正确：所有温度值均在合理范围内(21°C-23°C)，无错误解读",
    "Occupancy粘滞假设合理：客厅/卧室在6小时内从未翻转，且无任何伴随活动事件",
    "无人看管烹饪假设较弱但可接受：仅有一次off事件，无后续检查，缺乏烟雾/CO证据",
    "浴室Occupancy每30分钟固定上报unoccupied可正常解释为周期报告而非真实状态变化",
    "C04可能包含关键缺失信息，建议最终裁决前纳入检查"
  ]
}
```

C04中的烟雾/CO警报事件未纳入分析，若存在则会影响无人看管烹饪的风险评估
厨房窗户在日志结束时是否关闭? 只有打开事件无关闭事件
门锁翻转的具体时间缺失，C04可能包含更完整的门锁状态链

温度缩放正确：所有温度值均在合理范围内(21°C-23°C)，无错误解读

C04可能包含关键缺失信息，建议最终裁决前纳入检查

无人员活动信号，只有厨房的短暂操作和窗户打开，缺乏持续的移动或动作事件。

没有直接的故障事件或错误代码显示传感器损坏。

厨房窗户打开可能是有意的通风行为，不一定表示危险。

没有直接证据表明灶台仍然开着或燃气未关。

锁反转事件仅有1次，说明门锁未被频繁使用。

是否有其他可穿戴设备（如老人跌倒检测器）或健康传感器？

是否有室外光照、天气数据或空调设置信息，以便更好解释温度下降？

是否有任何人脸/门磁/智能门锁事件表明有人进入或离开房屋？

温度缩放正确：所有温度值均在合理范围内(21°C-23°C)，无错误解读

C04可能包含关键缺失信息，建议最终裁决前纳入检查

## Query
以下是过去 6 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Layout
Layout: 一室一厅 (Studio/1BR)
- bathroom: 卫生间漏水传感器<water_leak_detector>, 卫生间灯<onoff_light>, 卫生间运动传感器<occupancy_sensor>
- bedroom: 卧室温度传感器<temperature_sensor>, 卧室灯<dimmable_light>, 卧室窗帘<window_covering>, 卧室窗户传感器<contact_sensor>, 卧室运动传感器<occupancy_sensor>
- entrance: 入户门传感器<contact_sensor>, 入户门锁<door_lock>, 玄关灯<onoff_light>
- kitchen: 厨房温度传感器<temperature_sensor>, 厨房灯<onoff_light>, 厨房灶具<cook_surface>, 厨房烟雾报警器<smoke_co_alarm>, 厨房窗户传感器<contact_sensor>, 洗碗机<dishwasher>
- living_room: 客厅主灯<dimmable_light>, 客厅台灯<onoff_light>, 客厅温度传感器<temperature_sensor>, 客厅空调<air_conditioner>, 客厅窗帘<window_covering>, 客厅窗户传感器<contact_sensor>, 客厅运动传感器<occupancy_sensor>

## Deterministic Signals
{
  "room_activity": {
    "living_room": 147,
    "bedroom": 147,
    "kitchen": 78,
    "bathroom": 12,
    "entrance": 3
  },
  "attribute_frequency": {
    "MeasuredValue": 220,
    "Occupancy": 156,
    "OnOff": 5,
    "StateValue": 2,
    "OperationalState": 1,
    "CurrentPositionLiftPercent100ths": 1,
    "LockState": 1
  },
  "lock_state_flips": 1,
  "occupancy_events": 156,
  "temperature_patterns": [],
  "value_format_hints": {
    "temperature": "MeasuredValue is shown as Celsius with the raw integer preserved in parentheses.",
    "occupancy": "0=unoccupied, 1=occupied",
    "lock_state": "enumerated lock state rendered as label + raw code"
  }
}

## Chunk Index
[
  {
    "chunk_id": "C00",
    "start_ts": "2026-06-20T17:55:00",
    "end_ts": "2026-06-20T19:05:00",
    "event_count": 80,
    "rooms": {
      "living_room": 29,
      "bedroom": 29,
      "kitchen": 19,
      "bathroom": 3
    },
    "top_devices": [
      "living_room_temp_sensor",
      "bedroom_temp_sensor",

## Query
以下是过去 6 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Triage
{
  "primary_task_profile": "behavior-sequence",
  "secondary_task_profile": "none",
  "query_anchor": {
    "target_rooms": ["living_room", "bedroom", "kitchen", "bathroom", "entrance"],
    "target_devices": ["temperature_sensor", "occupancy_sensor", "contact_sensor", "door_lock", "onoff_light", "dimmable_light", "window_covering", "cook_surface", "smoke_co_alarm", "dishwasher", "water_leak_detector"],
    "target_question": "是否存在异常行为模式"
  },
  "focus_rooms": ["living_room", "bedroom", "kitchen", "bathroom"],
  "focus_devices": ["temperature_sensor", "occupancy_sensor"],
  "focus_chunk_ids": ["C00", "C01", "C02", "C03"],
  "suspected_patterns": ["occupancy persistence (长时段连续occupied状态)", "温度平稳下降趋势", "设备活动重复性高、多样性低"],
  "why_these_chunks": ["四个连续覆盖6小时的chunks提供完整连续性；预览显示occupancy几乎持续为occupied、温度有规律下降，可能反映无真实人员变化的模式；C04只有67条事件，不影响整体趋势判断。"]
}

## Investigator
```json
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "正常家庭活动：有人在厨房启动洗碗机后离开，随后可能因为夜晚降温或空调运行，导致全屋温度缓慢下降。卧室和客厅的occupancy传感器持续报告有人，可能因为有人在睡觉或静坐，而温度传感器的下降是环境自然冷却的结果。",
      "evidence": [
        "厨房的cook surface在18:46被关闭(off)，同时dishwasher被开启(on)并进入运行状态(OperationalState=1)，这是合理的家庭烹饪结束后启动洗碗机的行为。",
        "厨房窗户在18:46:30被打开(false)，可能是为了通风，这与后续厨房温度在18:47暂时缺失(None)但随后恢复正常读数相符，可能是传感器短暂干扰。",
        "全屋三个房间的温度在6小时内从约23°C缓慢下降至约22.5°C，下降速度约0.1°C/小时，符合自然冷却或空调恒温控制的特性，没有突变。",
        "occupancy传感器在客厅和卧室持续为occupied(1)，但bathroom的occupancy固定为unoccupied(0)且每次出现时间间隔一致(约每30分钟一次在02:57时刻)，这可能是传感器固定报告状态，不直接指向异常。",
        "所有温度值变化范围小且波动合理 (living_room从23.27C到22.42C，bedroom从22.27C到21.42C)，没有明显异常跳变。"
      ],
      "weaknesses": [
        "无人员活动信号，只有厨房的短暂操作和窗户打开，缺乏持续的移动或动作事件。",
        "卧室和客厅的oc


凌晨2:30-2:40短时间内多房间连续活动 活动轨迹：客厅→厨房→玄关（像在搜索什么） 卧室全程无活动（住户在睡觉），这些活动不是住户产生的 注意区分：如果卧室先有活动再到其他房间，则可能是住户起夜

```json
{
  "is_anomaly": false,
  "confidence": "low",
  "threat_type": "none",
  "threat_description": "No confirmed anomaly; the logged events are consistent with normal household activities, sensor behavior (brief None values during cooking), and typical nighttime temperature fluctuations, though a low-risk pattern of an unlocked door after 17:49 could not be refuted without additional chunk data.",
  "reasoning": [
    "The supervisor found evidence insufficient for a final verdict, recommended refine_investigation, and noted medium false-alarm risk; this gates the output to a cautious decision.",
    "The 02:35-03:00 waking event (lights on, occupancy transitions, temperature rise) is entirely consistent with normal nighttime activity (e.g., someone getting up, moving between rooms, and returning to bed); no door lock, contact, or HVAC anomalies accompanied it, ruling out an intrusion or system fault.",
    "The kitchen temperature sensor's two None values (06:48, 06:51, and again at 18:15) occurred exactly when the cook surface was active, and the sensor recovered immediately; this is a well-known thermal interference pattern, not a device fault or malfunction—consistent with Matter-notes guidance that scaled temperature values alone are not fault evidence.",
    "The 17:49 door unlock event: although the logs in C16 show the door was opened and never relocked within the chunk, the missing follow-up chunks (C17, C18) prevent confirming whether the door was later locked automatically or manually; the investigator's A3 hypothesis remains plausible but is not evidence-supported within the provided chunks.",
    "The absence of water_leak_detector logs across all focused chunks cannot be considered an anomaly without confirmation that the device exists and is expected to log; no direct evidence of water damage or high humidity was reported, so safety_device_failure is unsupported.",
    "The nocturnal temperature rise (01:20 to 04:00, approx 1°C) is small and consistent with building thermal inertia, appliance heat, or the brief occupant activity at 02:35; no HVAC or balcony door data was available to correlate, so no intrusion or HVAC failure inference is justified.",
    "Since no explicit anomaly pattern is confirmed with sufficient evidence, and the supervisor did not abstain but recommended refinement, the most aligned decision is no anomaly with low confidence."
  ],
  "key_evidence": [
    "Kitchen temp sensor None values occur only during cook-surface use, then immediately recover; no direct fault alarm.",
    "02:35-03:00 occupancy/light events form a coherent normal night-activity sequence without external-entry indicators.",
    "17:49 door unlock and door-open event lacks follow-up logs; ambiguous, not confirmable as anomaly.",
    "No water leak, HVAC, balcony door, or lock state logs in available chunks to substantiate any specific threat."
  ],
  "recommended_actions": [
    "Retrieve chunks C17, C18 to verify lock state and door contact behavior after 17:49: if the door remained unlocked/ajar for hours, treat as a low-severity behavioral risk (intentional or misconfigured auto-lock).",
    "If water leak sensor is confirmed installed, diagnose its connectivity (battery/offline) if logs remain absent.",
    "No immediate safety or security escalation required; routine monitoring of lock behavior and temperature sensor during cooking is advisable."
  ]
}
```

分析过去24小时设备活动日志是否存在异常行为模式

厨房温度传感器短暂缺失后恢复（可能传感器故障或干扰） 人不在时厨房灯和灶具被打开（可能异常使用或误报） 入户门锁解锁后长时间未上锁（可能安全隐患） 卫生间漏水传感器无日志，但漏水风险需评估 夜间阳台门传感器未记录开关，但温度上升一致，需排除门未关

C05 包含厨房温度传感器短暂None值，以及厨房灯、灶具在无人时段开启，是模式异常的关键时段

C16 包含入户门锁解锁、门磁打开，跟踪门状态变化和后续锁状态可判断行为是否正常

C02 包含清晨灯光和温度变化，可检查夜间活动模式

C22 包含深夜至凌晨的传感器状态，可对比温度变化和门窗状态一致性

分析过去24小时设备活动日志是否存在异常行为模式

C02 包含清晨灯光和温度变化，可检查夜间活动模式

C22 包含深夜至凌晨的传感器状态，可对比温度变化和门窗状态一致性

```json
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "全体家庭成员在02:35-03:00期间因异常原因（如夜起、雷雨、噪音等）同时醒来，打开客厅和厨房灯，活动约30分钟后各自回房继续休息。温度随后正常回升。",
      "evidence": [
        "C02显示02:35客厅灯亮，02:37厨房灯亮，与02:30-02:35间起居室占用传感器从0变1一致",
        "C01显示所有人在01:30-02:30期间均为unoccupied，符合深夜睡眠状态",
        "C01中02:30时入口占用传感器为0，但02:40变为1，表明有人移动到入口区域",
        "C02中03:00时所有占用传感器变回unoccupied，表明约30分钟活动后所有人回房",
        "C01-C03中温度从01:20的23.04C持续上升至04:00的24.08C，整体升温趋势合理（人员活动+人体散热）",
        "凌晨2-3点醒来活动（夜起、喝水、检查噪音等）是常见的人类行为"
      ],
      "weaknesses": [
        "为什么所有房间的占用传感器在02:30左右几乎同时触发？可能只是一个人从卧室走到客厅触发了客厅传感器，但入口传感器随后也被触发。如果只是一个人，厨房灯和客厅灯同时打开（02:35客厅灯，02:37厨房灯），暗示可能不止一人或有人开了两个灯",
        "温度上升从01:50开始已持续（从23.14→23.35C的较小幅度），不完全是活动导致"
      ]
    },
    {
      "id": "N2",
      "description": "07:21-07:30的家庭成员上班/外出流程：有人在家先准备早餐（06:47灶具短时开启），然后锁门离开（自动锁定），家中仍有一人在主卧，符合正常离家模式。",
      "evidence": [
        "C05显示06:47厨房灯亮，06:47灶具开，06:50灶具关（约3分钟），符合快速准备早餐场景",
        "C05中07:00时主卧占用为1，其余房间为0，表明有人在主卧",
        "C05中07:21:17主卧灯关，07:21:27门锁被手动解锁，07:21:29门磁开，07:21:30占用传感器触发并门磁关，07:21:31锁自动重新上锁，完整的外出流程",
        "07:21:30后门磁立即为真（门关），锁自动锁定，安全合规",
        "07:30时主卧仍为1，但入户门已锁，表明有人未离开（可能另有家庭成员在主卧）"
      ],
      "weaknesses": [
        "灶具仅开启约3分钟即关（06:47:34开，06:50:00关），可能只是加热少量食物，短暂使用是合理的"
      ]
    },
    {
      "id": "N3",
      "description": "17:49的人员回家流程：有人17:49解锁门进入，打开客厅灯和空调，正常回家活动，之后18:14开厨房灯和灶具准备晚餐，符合正常日常生活模式。",
      "evidence": [
        "C16显示17:49门锁被解锁，门磁开（false），占用传感器触发，然后客厅灯和空调开启",
        "18:14厨房灯和灶具开启，与正常晚餐准备时间一致",
        "温度从17:50的23.37C微降到18:30的23.09C，与空调开启致冷一致",
        "整个时段内主卧、客厅、入口占用持续，表明家中有多人或频繁移动"
      ],
      "weaknesses": [
        "17:49解锁后未见再次上锁记录，但门在17:49开、17:49:03占用触发后，门磁状态未显示后续关闭，锁状态也未见锁定，但可能只是门一直开着或有人在家不锁门。这不是安全异常，只是缺乏明确证据证明门已关",
        "灶具开启时间较长（18:14:30开，日志中未见关），可能在C16后正常关掉"
      ]
    },
    {
      "id": "N4",
      "description": "23:00-23:55全家仍在活动：所有人在23点后频繁在客厅/入口/主卧间移动，温度缓慢下降，符合正常夜间活动模式（看电视、准备睡觉等）。",
      "evidence": [
        "C22显示23:02主卧占用为1，23:04入口和客厅占用为1，之后每2-5分钟持续触发，表明人员频繁移动",
        "温度从23:00的22.54C缓慢下降至23:55的22.79C，夜间自然降温趋势",
        "无灯光或灶具异常开启记录，表明是正常夜间活动",
        "02:00时的C01-C03同样显示午夜后所有人都活动，与C22一致"
      ],
      "weaknesses": [
        "频繁占用触发（每2-5分钟）可能只是传感器灵敏度高，或多人多次出入，不一定异常"
      ]
    }
  ],
  "anomaly_hypotheses": [
    {
      "id": "A1",
      "description": "厨房温度传感器在灶具开启期间两次报告None值（06:48和06:51），然后恢复，可能是传感器受瞬时高温干扰或短暂故障。这不是设备持续性故障，而可能是灶具热量导致传感器读数异常或短暂离线的行为异常。",
      "threat_type": "sensor_malfunction",
      "evidence": [
        "C05中06:48:04 kitchen_temp_sensor MeasuredValue = None，紧接着06:47:34灶具开启和06:47:04厨房灯亮",
        "06:51:00再次出现None，然后在06:55恢复读数",
        "无fault_alarm或error_event日志（根据supervisor反馈需检查C06等），但两次None后自动恢复，符合高温干扰导致传感器临时失准模式",
        "灶具开启时间极短（06:47:34开，06:50:00关），可能灶具热量瞬时影响传感器"
      ],
      "weaknesses": [
        "None值出现后自动恢复（06:55即可读到25.05C），没有持续故障证据",
        "06:48和06:51的None值可能只是网络瞬断或日志丢失，而非传感器本身问题",
        "在18:15同样出现一次None值（C16中18:14灶具开，18:15厨房温度传感器None），模式与上午一致，支持热干扰解释"
      ]
    },
    {
      "id": "A2",
      "description": "02:35-03:00间所有人同时非正常醒来且打开多处灯光，可能是自动场景异常触发（如安防或场景触发误触发），或入侵者进入触发了运动传感器，但随后所有传感器显示unoccupied，无法完全排除异常进入。",
      "threat_type": "behavioral_anomaly",
      "evidence": [
        "C01中02:30所有占用传感器均为0，然后02:30和02:32living_room_occupancy突然变1",
        "C02中02:35客厅灯亮，02:37厨房灯亮，但02:40入口占用也变为1",
        "03:00所有占用传感器又变0，但灯未关（直到C06/C16未见灯灭日志）",
        "02:30至03:00之间所有温度探头持续上升，但所有探头同步上升，不支持局部热源（如灶具），更可能是人员活动",
        "如果只是一个人夜起，无需同时打开客厅和厨房两处灯"
      ],
      "weaknesses": [
        "02:35的灯光可能是预设的场景（如夜灯模式），而非入侵者",
        "无门锁操作日志或门磁变化记录，表明无人从外部进入",
        "02:30至03:00的占用变化可通过一个人在不同房间移动解释：一个人先去客厅开灯，然后去厨房开灯，再回卧室"
      ]
    },
    {
      "id": "A3",
      "description": "入户门锁在17:49解锁后，长达约13小时（直到第二天早7:21）未见再次上锁记录，且门磁在17:49:02为false后未见恢复true的日志，表明门可能一直未关或门锁未锁定，存在安全隐患。门锁只在C16中有解锁记录，但锁后续是否锁定不明确。",
      "threat_type": "intrusion",
      "evidence": [
        "C16中17:49:00门锁解锁，17:49:02门磁为false（门开）",
        "直到C16结束（18:35）未见锁状态变化或门磁变true",
        "Supervisor反馈要求检查C17-C18等是否包含后续锁操作，但当前缺失此类信息",
        "如果门未锁且门可能未关，任何人可进入家中，存在安全隐患"
      ],
      "weaknesses": [
        "门可能被手动关闭（门磁变true）但日志未被包含在当前chunks中",
        "17:49后占用传感器显示家中人员活动频繁，可能有人在家故意不锁门",
        "门磁传感器如果故障（未报告close），会产生虚警"
      ]
    },
    {
      "id": "A4",
      "description": "卫生间漏水传感器在24小时日志中完全无日志（根据structured signals，bathroom活动仅为48次且均为占用和温度，无water_leak_detector记录），可能是设备离线、电池耗尽或被移除，但漏水风险无法评估。这是安全设备缺失或失效的潜在风险。",
      "threat_type": "safety_device_failure",
      "evidence": [
        "Structured signals显示bathroom仅有48次活动，且均为占用和温度",
        "supervisor反馈明确提到检查C09、C12等中是否有water_leak_detector日志，但当前focused chunks中无任何water_leak_detector数据",
        "如果卫生间有漏水传感器但无日志，可能已离线或失效"
      ],
      "weaknesses": [
        "可能卫生间未安装漏水传感器，或者仅通过环境传感器间接监测漏水风险",
        "C01-C22中未见卫生间漏水迹象（无异常高湿度或水渍报告），但仍属未知风险"
      ]
    },
    {
      "id": "A5",
      "description": "阳台门接触传感器夜间未见任何开关日志，但温度从凌晨开始持续上升（C01-C03），且夜间所有占用传感器显示unoccupied，温度上升不能归因于门未关造成的室外热空气进入，因为室外夜间温度通常较低。这一现象需额外原因解释。",
      "threat_type": "none",
      "evidence": [
        "Supervisor反馈提到'夜间阳台门传感器未记录开关，但温度上升一致，需排除门未关'",
        "Focused chunks C01-C03中无阳台门接触传感器日志",
        "温度从01:20的23.04C上升至04:00的24.08C，上升约1C，但夜间室外温度通常下降，室内温度上升需内热源",
        "如果阳台门开着，室外冷空气应降低温度；实际温度上升，因此门未关的假设与温度数据不符",
        "可能的解释包括供暖系统运行或人员活动，但无供暖系统日志，人员活动仅在02:35-03:00间"
      ],
      "weaknesses": [
        "日志未包含阳台门传感器，无法确认其是否存在或关闭状态",
        "温度上升幅度（1C）较小，可能由建筑保温和家用电器散热（冰箱、路由器等）所致"
      ]
    }
  ],
  "most_discriminative_evidence": [
    "C01中02:30所有房间unoccupied后02:30-02:35占用人突然变1，随后02:35客厅灯亮、02:37厨房灯亮，03:00又全变0，表明凌晨集体醒来活动",
    "C05中灶具开启同时厨房温度传感器两次None值，随后恢复（06:48和06:51），疑似热干扰",
    "C16中17:49门锁解锁后，未见锁回锁记录和门磁关闭记录，长达数小时状态未知",
    "卫生间water_leak_detector在全部focused chunks中无任何日志"
  ],
  "missing_information": [
    "C01-C03阳台门接触传感器的存在性和日志",
    "C17、C18等后续chunks中门锁是否在17:49后重新锁定",
    "C09、C12等是否包含水漏传感器日志",
    "供暖系统日志（如有）以评估夜间温度上升是否由供暖操作引起",
    "02:35-03:00间厨房灯和客厅灯是否有关闭日志（C02中02:37开灯后未见关灯日志），以确认灯光是否持续亮到早上",
    "07:21:30前（C05）是否有其他门锁操作（如从外锁门），以确认07:21离家的人是否成功锁门",
    "C22（23:00后）是否有阳台门接触传感器状态"
  ]
}
```

全体家庭成员在02:35-03:00期间因异常原因（如夜起、雷雨、噪音等）同时醒来，打开客厅和厨房灯，活动约30分钟后各自回房继续休息。温度随后正常回升。

C02显示02:35客厅灯亮，02:37厨房灯亮，与02:30-02:35间起居室占用传感器从0变1一致

C01显示所有人在01:30-02:30期间均为unoccupied，符合深夜睡眠状态

C01中02:30时入口占用传感器为0，但02:40变为1，表明有人移动到入口区域

C02中03:00时所有占用传感器变回unoccupied，表明约30分钟活动后所有人回房

C01-C03中温度从01:20的23.04C持续上升至04:00的24.08C，整体升温趋势合理（人员活动+人体散热）

凌晨2-3点醒来活动（夜起、喝水、检查噪音等）是常见的人类行为

温度上升从01:50开始已持续（从23.14→23.35C的较小幅度），不完全是活动导致

07:21-07:30的家庭成员上班/外出流程：有人在家先准备早餐（06:47灶具短时开启），然后锁门离开（自动锁定），家中仍有一人在主卧，符合正常离家模式。

C05显示06:47厨房灯亮，06:47灶具开，06:50灶具关（约3分钟），符合快速准备早餐场景

C05中07:00时主卧占用为1，其余房间为0，表明有人在主卧

07:21:30后门磁立即为真（门关），锁自动锁定，安全合规

07:30时主卧仍为1，但入户门已锁，表明有人未离开（可能另有家庭成员在主卧）

灶具仅开启约3分钟即关（06:47:34开，06:50:00关），可能只是加热少量食物，短暂使用是合理的

17:49的人员回家流程：有人17:49解锁门进入，打开客厅灯和空调，正常回家活动，之后18:14开厨房灯和灶具准备晚餐，符合正常日常生活模式。

C16显示17:49门锁被解锁，门磁开（false），占用传感器触发，然后客厅灯和空调开启

18:14厨房灯和灶具开启，与正常晚餐准备时间一致

温度从17:50的23.37C微降到18:30的23.09C，与空调开启致冷一致

整个时段内主卧、客厅、入口占用持续，表明家中有多人或频繁移动

灶具开启时间较长（18:14:30开，日志中未见关），可能在C16后正常关掉

23:00-23:55全家仍在活动：所有人在23点后频繁在客厅/入口/主卧间移动，温度缓慢下降，符合正常夜间活动模式（看电视、准备睡觉等）。

C22显示23:02主卧占用为1，23:04入口和客厅占用为1，之后每2-5分钟持续触发，表明人员频繁移动

温度从23:00的22.54C缓慢下降至23:55的22.79C，夜间自然降温趋势

无灯光或灶具异常开启记录，表明是正常夜间活动

02:00时的C01-C03同样显示午夜后所有人都活动，与C22一致

频繁占用触发（每2-5分钟）可能只是传感器灵敏度高，或多人多次出入，不一定异常

灶具开启时间极短（06:47:34开，06:50:00关），可能灶具热量瞬时影响传感器

None值出现后自动恢复（06:55即可读到25.05C），没有持续故障证据

06:48和06:51的None值可能只是网络瞬断或日志丢失，而非传感器本身问题

在18:15同样出现一次None值（C16中18:14灶具开，18:15厨房温度传感器None），模式与上午一致，支持热干扰解释

C02中02:35客厅灯亮，02:37厨房灯亮，但02:40入口占用也变为1

03:00所有占用传感器又变0，但灯未关（直到C06/C16未见灯灭日志）

02:30至03:00之间所有温度探头持续上升，但所有探头同步上升，不支持局部热源（如灶具），更可能是人员活动

如果只是一个人夜起，无需同时打开客厅和厨房两处灯

02:35的灯光可能是预设的场景（如夜灯模式），而非入侵者

无门锁操作日志或门磁变化记录，表明无人从外部进入

02:30至03:00的占用变化可通过一个人在不同房间移动解释：一个人先去客厅开灯，然后去厨房开灯，再回卧室

直到C16结束（18:35）未见锁状态变化或门磁变true

Supervisor反馈要求检查C17-C18等是否包含后续锁操作，但当前缺失此类信息

如果门未锁且门可能未关，任何人可进入家中，存在安全隐患

门可能被手动关闭（门磁变true）但日志未被包含在当前chunks中 17:49后占用传感器显示家中人员活动频繁，可能有人在家故意不锁门 门磁传感器如果故障（未报告close），会产生虚警

如果卫生间有漏水传感器但无日志，可能已离线或失效

可能卫生间未安装漏水传感器，或者仅通过环境传感器间接监测漏水风险 C01-C22中未见卫生间漏水迹象（无异常高湿度或水渍报告），但仍属未知风险

Supervisor反馈提到'夜间阳台门传感器未记录开关，但温度上升一致，需排除门未关'

温度从01:20的23.04C上升至04:00的24.08C，上升约1C，但夜间室外温度通常下降，室内温度上升需内热源

如果阳台门开着，室外冷空气应降低温度；实际温度上升，因此门未关的假设与温度数据不符

可能的解释包括供暖系统运行或人员活动，但无供暖系统日志，人员活动仅在02:35-03:00间

日志未包含阳台门传感器，无法确认其是否存在或关闭状态 温度上升幅度（1C）较小，可能由建筑保温和家用电器散热（冰箱、路由器等）所致

C05中灶具开启同时厨房温度传感器两次None值，随后恢复（06:48和06:51），疑似热干扰

C16中17:49门锁解锁后，未见锁回锁记录和门磁关闭记录，长达数小时状态未知

C01-C03阳台门接触传感器的存在性和日志

C09、C12等是否包含水漏传感器日志

供暖系统日志（如有）以评估夜间温度上升是否由供暖操作引起

02:35-03:00间厨房灯和客厅灯是否有关闭日志（C02中02:37开灯后未见关灯日志），以确认灯光是否持续亮到早上

07:21:30前（C05）是否有其他门锁操作（如从外锁门），以确认07:21离家的人是否成功锁门

C22（23:00后）是否有阳台门接触传感器状态

Check C09, C12 for any water_leak_detector logs (missing safety device data)

Check C17, C18 for door lock/door contact logs after 17:49 to resolve lock state ambiguity

Check C07 or other daylight chunks for balcony door contact sensor logs to correlate with temperature rise and verify false-alarm risk

Check if there are logs for living_room_light_1 and kitchen_light being turned off after 02:35 to confirm whether lights were left on all night (behavioral anomaly)

Check C22 or adjacent chunks for balcony door contact sensor status during nighttime

Check if any HVAC/thermostat logs exist (e.g., C04, C08) to explain nocturnal temperature rise independent of occupant activity

Investigator correctly identifies Matter-scaled temperature values (e.g., 2466 = 24.66°C), no risk of misreading impossible temperatures. However, temperature-only patterns are not treated as device-fault evidence without direct fault indicators.

Investigator analysis remains on-topic, focused on behavior-sequence and anomaly detection across the 24-hour period.

Evidence is ambiguous for several key anomalies: 02:35-03:00 waking event, 17:49 door lock state, and water leak sensor absence. Not yet sufficient for final verdict without additional chunks.

The investigator's 'missing_information' list is accurate but incomplete; recommended action is to refine by requesting the specific chunks listed above.

The temperature rise from 01:20 to 04:00 is about 1°C, which could be from building thermal inertia or hidden heat sources; this alone does not justify an intrusion or HVAC failure label, but warrants further cross-check with balcony door and HVAC logs.

False-alarm risk is medium because normal hypotheses (e.g., family activity at 02:35, door left unlocked intentionally) are plausible, and the water leak sensor absence may be due to no sensor being installed rather than failure.

```json
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "普通工作日上午的居家活动模式：家庭成员在 06:47 左右醒来并开始准备早餐（开启厨房灯和灶具），厨房温度传感器短暂无值可能是传感器刷新延迟或暂时的通信抖动，约 2 分钟后恢复正常。07:21 左右家庭成员锁门出门上班，入口门锁先解锁、门被打开、人员离开后自动上锁，属于正常的离家流程。",
      "evidence": [
        "06:47:04 kitchen_light 开启和 06:47:34 kitchen_cook_surface 开启，符合准备早餐的典型行为",
        "06:48:04 kitchen_temp_sensor 短暂 None，但 06:50:00 即恢复为 25.06°C，且后续所有数据点正常",
        "07:21:27-07:21:31 之间发生完整的开锁→开门→出门→自动上锁流程，且锁状态最终为 locked",
        "master_bedroom_occupancy 在 06:45-07:20 期间持续为 occupied，表示有人在主卧",
        "所有温度传感器读数之间差异合理（<0.5°C），没有漂移或突变"
      ],
      "weaknesses": [
        "厨房温度传感器在灶具开启后 2 分钟内出现两次 None（06:48:04 和 06:51:00），尽管每次持续仅间隔 2-3 分钟且后来恢复，仍可质疑是否为传感器受热导致临时通信异常",
        "07:00 时 living_room, second_bedroom, bathroom, entrance 均为 unoccupied，但 master_bedroom 为 occupied，有人仅呆在主卧也属合理"
      ]
    },
    {
      "id": "N2",
      "description": "傍晚到夜间正常的居家活动：家庭成员 17:49 回家后开启客厅灯和空调，18:14 开始准备晚餐（打开厨房灯和灶具），随后在客厅和入口区域来回走动。晚间 23:00-23:55 主卧、客厅、入口持续有人活动，温度稳定在 22.5-22.8°C 之间，属于正常晚间作息。",
      "evidence": [
        "17:49:00 front_door_lock 解锁、17:49:02 门磁打开、17:49:03 entrance_occupancy=1，说明有人开门进入",
        "17:49:12-17:49:22 开启客厅灯和空调，符合回家后的舒适调节行为",
        "18:14:00-18:14:30 开启厨房灯和灶具，符合准备晚餐的日常模式",
        "23:02-23:55 期间 master_bedroom, entrance, living_room occupancy 每约 2-3 分钟更新为 1，表示有人在走动而非设备异常",
        "温度在 22.5-22.8°C 之间缓慢波动，与晚间的自然降温趋势一致"
      ],
      "weaknesses": [
        "傍晚时 kitchen_temp_sensor 在 18:15 也出现一次 None（18:15:00 同时有 None 和正常 23.18°C 两个值，可能是日志数据格式问题），但其余时间均正常",
        "门锁在 17:49 解锁后没有记录任何手动上锁事件，但是否在 17:49 进入后立即锁门未提及；不过 07:21:31 有自动上锁事件。"
      ]
    }
  ],
  "anomaly_hotheses": [
    {
      "id": "A1",
      "description": "厨房温度传感器瞬态缺失可能反映传感器热暴露或故障：在灶具开启前（06:47:34）后约 30-35 秒内传感器出现 None，而灶具开启仅约 2.5 分钟（06:47:34 到 06:50:00），两次 None 出现于灶具使用期间及刚关闭后。在傍晚灶具再次开启时（18:14:30）之后，18:15:00 同样出现一次 None。这提示传感器可能在灶具产生高热时发生通信中断或临时故障，虽然后续恢复但重复出现可视为一种不可重复的安全隐患：在烹饪区域高温环境可能导致传感器电路异常，甚至存在过热风险或传感器热保护触发。",
      "threat_type": "sensor_malfunction",
      "evidence": [
        "06:48:04 kitchen_temp_sensor = None (灶具开启后约 30 秒)",
        "06:51:00 kitchen_temp_sensor = None (灶具关闭后 1 分钟)",
        "18:15:00 kitchen_temp_sensor = None（18:14:30 灶具再次开启后 30 秒）",
        "其他传感器（客厅、主卧、次卧）在同时段均正常连续上报",
        "传感器恢复后的数值（25.06°C, 23.18°C）与预期温度一致性良好，说明不是永久性损坏，而是瞬态中断"
      ],
      "weaknesses": [
        "没有 explicit alarm/fault event 报告，且两次 None 后均自动恢复",
        "温度值本身处于合理范围（约 23-25°C），未测量到极端高温",
        "不能完全排除是网络抖动导致的通信丢包"
      ]
    },
    {
      "id": "A2",
      "description": "凌晨 02:35 厨房灯和客厅灯在没有检测到人员活动时点亮：02:35-02:37 起居室和厨房灯打开，但所有 occupancy 传感器在 03:00 和 03:30 均报告为 unoccupied（全屋无人），并且从 02:35 到 04:00 之间没有任何 occupancy=1 的记录。这构成一个异常行为模式：灯光在无人时被远程或定时开启，可能为异常能源消耗或入侵者遗留的场景。虽然 02:40 entrance_occupancy=1 单独出现一次，但后续 03:00-03:30 均为 unoccupied，且没有对应 door 关闭/打开事件支持有人进入——要么是 occupancy 误报，要么是瞬时经过。",
      "threat_type": "intrusion",
      "evidence": [
        "02:35:00 living_room_light_1 = on",
        "02:37:00 kitchen_light = on",
        "03:00:00 全屋（living_room, master_bedroom, second_bedroom, bathroom, entrance）occupancy 均为 unoccupied",
        "03:30:00 第二次全屋 occupancy 全为 unoccupied",
        "02:40:00 entrance_occupancy=1 孤立出现，但随后 02:45 没有更新，02:50 也没有 occupancy 事件",
        "无任何门锁或接触传感器在此时间段记录解锁/开门事件",
        "没有门锁或门窗记录在 02:35-03:00 期间被触发"
      ],
      "weaknesses": [
        "厨房灯和客厅灯可能通过智能自动化（如定时规则）开启而无需人员在场，特别是凌晨时段",
        "occupancy 传感器在 02:40 有一个 entrance_occupancy=1 但很快消失，可能有人短暂通过但未被门磁记录（门未开启？或磁感应延迟）",
        "没有证据表明有人进入，且 03:00 后全屋无人，灯光可能只是自动场景且后续未关"
      ]
    },
    {
      "id": "A3",
      "description": "傍晚 17:49 门锁解锁后没有立即上锁记录，直到次日 07:21 才有一个自动上锁事件，但 17:49-07:21 之间约 13 小时的门锁状态无任何更新。从日志结构化数据可知 lock_state_flips 总数为 5，但具体时间戳在 chunks 显示只有一次解锁和一次自动锁门。可能的问题是：门锁在 17:49 解锁后长时间未锁，存在安全隐患——虽然后来自动上锁，但若在 17:49 门被打开进入后忘记上锁，直到第二天离开时才被自动锁上，这可能导致夜间室内安全风险。",
      "threat_type": "tailgating",
      "evidence": [
        "17:49:00 front_door_lock = unlocked (raw=2)，随后 17:49:02 门磁状态变为 false 表示门被打开",
        "后续 17:49:09-18:34:09 期间 entrance_occupancy 持续周期性 occupied，但直到 07:21:27 才再次记录 LockOperation",
        "07:21:27-07:21:31 记录了一次手动解锁→自动上锁的完整流程，表示离家时完成了锁门",
        "17:49 到 07:21 之间没有任何锁状态变化或门磁变化"
      ],
      "weaknesses": [
        "可能门在 17:49 解锁后保持 unlocked 状态直到次日 07:21，但若有人一直在家里，门不需要锁，因此正常",
        "在 17:49 进入后可能在屋内活动且门保持解锁状态也合理",
        "入口门是手动开启的，但 17:49 的解锁日志来自 Manual 操作，说明是手动开锁，可能是钥匙/门把，不是自动欢迎模式"
      ]
    },
    {
      "id": "A4",
      "description": "卫生间漏水传感器日志缺失：在 triage 输出已标记 \"卫生间漏水传感器无日志\"，但聚焦 chunks 中也看不到任何 water_leak_detector 或类似设备的报警。虽然 query 中没有直接要求卫生间特定内容，但作为家庭安全重要组件，卫生间漏水风险需要评估。如果漏水传感器存在但无日志或日志被过滤掉，说明配置异常或设备离线。若本来就没安装则为安全隐患。",
      "threat_type": "safety_device_failure",
      "evidence": [
        "Triage 明确指出 \"卫生间漏水传感器无日志，但漏水风险需评估\"",
        "在 C02, C05, C16, C22 所有事件中均无 water_leak_detector 或类似设备名出现",
        "其他设备如厨房温度传感器、门锁等均有日志",
        "卫生间漏水是常见高风险安全隐患"
      ],
      "weaknesses": [
        "可能该设备被归入其他未提供的设备类型（如 leak_detector 映射）",
        "日志可能因为设备离线导致未记录",
        "没有 explicit fault event 但缺少日志本身可能是一种异常"
      ]
    }
  ],
  "most_discriminative_evidence": [
    "02:35-02:37 灯在无人期间打开，但 occupancy 在 03:00 及 03:30 全屋 unoccupied",
    "06:48/06:51/18:15 厨房温度传感器在灶具开启后短暂 None，且出现两次",
    "17:49 门锁解锁后直到 07:21 才再次记录锁操作，间隔约 13 小时",
    "卫生间漏水传感器无任何日志"
  ],
  "missing_information": [
    "厨房灯的自动场景规则（如果有），以确认凌晨灯光是否为定时或自动化而非手动",
    "卫生间漏水传感器的型号和配置状态",
    "17:49-07:21 之间的门锁状态记录是否完整——有无中间状态变化被日志漏掉？",
    "厨房温度传感器 None 时段是否有任何传感器 fault_alarm 或 error_event 出现",
    "阳台门传感器日志（Triage 提及但 chunks 未包含阳台相关内容）"
  ]
}
```

06:47:04 kitchen_light 开启和 06:47:34 kitchen_cook_surface 开启，符合准备早餐的典型行为

06:48:04 kitchen_temp_sensor 短暂 None，但 06:50:00 即恢复为 25.06°C，且后续所有数据点正常

07:21:27-07:21:31 之间发生完整的开锁→开门→出门→自动上锁流程，且锁状态最终为 locked

master_bedroom_occupancy 在 06:45-07:20 期间持续为 occupied，表示有人在主卧

所有温度传感器读数之间差异合理（<0.5°C），没有漂移或突变

17:49:00 front_door_lock 解锁、17:49:02 门磁打开、17:49:03 entrance_occupancy=1，说明有人开门进入

17:49:12-17:49:22 开启客厅灯和空调，符合回家后的舒适调节行为

18:14:00-18:14:30 开启厨房灯和灶具，符合准备晚餐的日常模式

温度在 22.5-22.8°C 之间缓慢波动，与晚间的自然降温趋势一致

门锁在 17:49 解锁后没有记录任何手动上锁事件，但是否在 17:49 进入后立即锁门未提及；不过 07:21:31 有自动上锁事件。

06:48:04 kitchen_temp_sensor = None (灶具开启后约 30 秒)

06:51:00 kitchen_temp_sensor = None (灶具关闭后 1 分钟)

18:15:00 kitchen_temp_sensor = None（18:14:30 灶具再次开启后 30 秒）

其他传感器（客厅、主卧、次卧）在同时段均正常连续上报

传感器恢复后的数值（25.06°C, 23.18°C）与预期温度一致性良好，说明不是永久性损坏，而是瞬态中断

没有 explicit alarm/fault event 报告，且两次 None 后均自动恢复

温度值本身处于合理范围（约 23-25°C），未测量到极端高温

不能完全排除是网络抖动导致的通信丢包

02:40:00 entrance_occupancy=1 孤立出现，但随后 02:45 没有更新，02:50 也没有 occupancy 事件

无任何门锁或接触传感器在此时间段记录解锁/开门事件

没有门锁或门窗记录在 02:35-03:00 期间被触发

厨房灯和客厅灯可能通过智能自动化（如定时规则）开启而无需人员在场，特别是凌晨时段

occupancy 传感器在 02:40 有一个 entrance_occupancy=1 但很快消失，可能有人短暂通过但未被门磁记录（门未开启？或磁感应延迟）

没有证据表明有人进入，且 03:00 后全屋无人，灯光可能只是自动场景且后续未关

17:49:00 front_door_lock = unlocked (raw=2)，随后 17:49:02 门磁状态变为 false 表示门被打开

07:21:27-07:21:31 记录了一次手动解锁→自动上锁的完整流程，表示离家时完成了锁门

17:49 到 07:21 之间没有任何锁状态变化或门磁变化

可能门在 17:49 解锁后保持 unlocked 状态直到次日 07:21，但若有人一直在家里，门不需要锁，因此正常

在 17:49 进入后可能在屋内活动且门保持解锁状态也合理

入口门是手动开启的，但 17:49 的解锁日志来自 Manual 操作，说明是手动开锁，可能是钥匙/门把，不是自动欢迎模式

卫生间漏水传感器日志缺失：在 triage 输出已标记 "卫生间漏水传感器无日志"，但聚焦 chunks 中也看不到任何 water_leak_detector 或类似设备的报警。虽然 query 中没有直接要求卫生间特定内容，但作为家庭安全重要组件，卫生间漏水风险需要评估。如果漏水传感器存在但无日志或日志被过滤掉，说明配置异常或设备离线。若本来就没安装则为安全隐患。

Triage 明确指出 "卫生间漏水传感器无日志，但漏水风险需评估"

在 C02, C05, C16, C22 所有事件中均无 water_leak_detector 或类似设备名出现

其他设备如厨房温度传感器、门锁等均有日志

卫生间漏水是常见高风险安全隐患

可能该设备被归入其他未提供的设备类型（如 leak_detector 映射）
日志可能因为设备离线导致未记录
没有 explicit fault event 但缺少日志本身可能是一种异常

02:35-02:37 灯在无人期间打开，但 occupancy 在 03:00 及 03:30 全屋 unoccupied

06:48/06:51/18:15 厨房温度传感器在灶具开启后短暂 None，且出现两次

17:49 门锁解锁后直到 07:21 才再次记录锁操作，间隔约 13 小时

卫生间漏水传感器无任何日志

厨房灯的自动场景规则（如果有），以确认凌晨灯光是否为定时或自动化而非手动

卫生间漏水传感器的型号和配置状态

17:49-07:21 之间的门锁状态记录是否完整——有无中间状态变化被日志漏掉？

厨房温度传感器 None 时段是否有任何传感器 fault_alarm 或 error_event 出现

阳台门传感器日志（Triage 提及但 chunks 未包含阳台相关内容）

C02显示02:35客厅灯亮，02:37厨房灯亮，与02:30-02:35间起居室占用传感器从0变1一致

C01显示所有人在01:30-02:30期间均为unoccupied，符合深夜睡眠状态

C01中02:30时入口占用传感器为0，但02:40变为1，表明有人移动到入口区域

C02中03:00时所有占用传感器变回unoccupied，表明约30分钟活动后所有人回房

C01-C03中温度从01:20的23.04C持续上升至04:00的24.08C，整体升温趋势合理（人员活动+人体散热）

凌晨2-3点醒来活动（夜起、喝水、检查噪音等）是常见的人类行为

温度上升从01:50开始已持续（从23.14→23.35C的较小幅度），不完全是活动导致

C05显示06:47厨房灯亮，06:47灶具开，06:50灶具关（约3分钟），符合快速准备早餐场景

C05中07:00时主卧占用为1，其余房间为0，表明有人在主卧

07:21:30后门磁立即为真（门关），锁自动锁定，安全合规

07:30时主卧仍为1，但入户门已锁，表明有人未离开（可能另有家庭成员在主卧）

灶具仅开启约3分钟即关（06:47:34开，06:50:00关），可能只是加热少量食物，短暂使用是合理的

C16显示17:49门锁被解锁，门磁开（false），占用传感器触发，然后客厅灯和空调开启

18:14厨房灯和灶具开启，与正常晚餐准备时间一致

温度从17:50的23.37C微降到18:30的23.09C，与空调开启致冷一致

整个时段内主卧、客厅、入口占用持续，表明家中有多人或频繁移动

灶具开启时间较长（18:14:30开，日志中未见关），可能在C16后正常关掉

C22显示23:02主卧占用为1，23:04入口和客厅占用为1，之后每2-5分钟持续触发，表明人员频繁移动

温度从23:00的22.54C缓慢下降至23:55的22.79C，夜间自然降温趋势

无灯光或灶具异常开启记录，表明是正常夜间活动

02:00时的C01-C03同样显示午夜后所有人都活动，与C22一致

频繁占用触发（每2-5分钟）可能只是传感器灵敏度高，或多人多次出入，不一定异常

无fault_alarm或error_event日志（根据supervisor反馈需检查C06等），但两次None后自动恢复，符合高温干扰导致传感器临时失准模式

灶具开启时间极短（06:47:34开，06:50:00关），可能灶具热量瞬时影响传感器

None值出现后自动恢复（06:55即可读到25.05C），没有持续故障证据

06:48和06:51的None值可能只是网络瞬断或日志丢失，而非传感器本身问题

在18:15同样出现一次None值（C16中18:14灶具开，18:15厨房温度传感器None），模式与上午一致，支持热干扰解释

C02中02:35客厅灯亮，02:37厨房灯亮，但02:40入口占用也变为1

03:00所有占用传感器又变0，但灯未关（直到C06/C16未见灯灭日志）

02:30至03:00之间所有温度探头持续上升，但所有探头同步上升，不支持局部热源（如灶具），更可能是人员活动

如果只是一个人夜起，无需同时打开客厅和厨房两处灯

02:35的灯光可能是预设的场景（如夜灯模式），而非入侵者

无门锁操作日志或门磁变化记录，表明无人从外部进入

02:30至03:00的占用变化可通过一个人在不同房间移动解释：一个人先去客厅开灯，然后去厨房开灯，再回卧室

直到C16结束（18:35）未见锁状态变化或门磁变true

Supervisor反馈要求检查C17-C18等是否包含后续锁操作，但当前缺失此类信息

如果门未锁且门可能未关，任何人可进入家中，存在安全隐患

如果卫生间有漏水传感器但无日志，可能已离线或失效

可能卫生间未安装漏水传感器，或者仅通过环境传感器间接监测漏水风险 C01-C22中未见卫生间漏水迹象（无异常高湿度或水渍报告），但仍属未知风险

Supervisor反馈提到'夜间阳台门传感器未记录开关，但温度上升一致，需排除门未关'

温度从01:20的23.04C上升至04:00的24.08C，上升约1C，但夜间室外温度通常下降，室内温度上升需内热源

如果阳台门开着，室外冷空气应降低温度；实际温度上升，因此门未关的假设与温度数据不符

可能的解释包括供暖系统运行或人员活动，但无供暖系统日志，人员活动仅在02:35-03:00间

日志未包含阳台门传感器，无法确认其是否存在或关闭状态 温度上升幅度（1C）较小，可能由建筑保温和家用电器散热（冰箱、路由器等）所致

C16中17:49门锁解锁后，未见锁回锁记录和门磁关闭记录，长达数小时状态未知

C01-C03阳台门接触传感器的存在性和日志

C09、C12等是否包含水漏传感器日志

供暖系统日志（如有）以评估夜间温度上升是否由供暖操作引起

C22（23:00后）是否有阳台门接触传感器状态

检查C01或C03等凌晨时段是否有其他设备日志，以确认02:35灯光是否为自动场景触发，或者是否存在手动操作

检查C17或C18中是否有任何门锁状态变化，以确认17:49解锁后到07:21之间是否真的没有其他锁操作

查看C06、C07等中是否包含厨房温度传感器的fault_alarm或error_event，以评估A1的故障风险

检查C09、C12等中是否有water_leak_detector或类似设备的任何日志，以确认卫生间漏水传感器是否确实缺失或离线

检查C15、C19等中是否包含阳台门接触传感器日志，以验证夜间温度上升是否与门未关一致

确认所有occupancy传感器在02:35-03:00之间的更新间隔是否正常，排除传感器静默期

分析基本围绕查询目标（异常行为模式）展开，on_topic=true

证据尚不充分：多个假设（A1、A2、A3、A4）依赖缺失信息或存在其他合理解释，例如A2中灯光可能由自动化触发，A3中门锁长时间未锁可能因人员在家而合理

需要更多chunks以补充关键时段的日志，从而区分正常行为与真正异常

分析基本围绕查询目标（异常行为模式）展开，on_topic=true

需要更多chunks以补充关键时段的日志，从而区分正常行为与真正异常

## Query
以下是过去 24 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Layout
Layout: 两室一厅 (2BR)
- balcony: 洗衣机<laundry_washer>, 阳台灯<onoff_light>, 阳台门传感器<contact_sensor>
- bathroom: 卫生间漏水传感器<water_leak_detector>, 卫生间灯<onoff_light>, 卫生间运动传感器<occupancy_sensor>
- entrance: 入户门传感器<contact_sensor>, 入户门锁<door_lock>, 玄关灯<onoff_light>, 玄关运动传感器<occupancy_sensor>
- kitchen: 厨房温度传感器<temperature_sensor>, 厨房灯<onoff_light>, 厨房灶具<cook_surface>, 厨房烟雾报警器<smoke_co_alarm>, 厨房窗户传感器<contact_sensor>, 洗碗机<dishwasher>
- living_room: 客厅主灯<dimmable_light>, 客厅温度传感器<temperature_sensor>, 客厅空调<air_conditioner>, 客厅窗帘<window_covering>, 客厅窗户传感器<contact_sensor>, 客厅落地灯<onoff_light>, 客厅运动传感器<occupancy_sensor>
- master_bedroom: 主卧温度传感器<temperature_sensor>, 主卧灯<dimmable_light>, 主卧空调<air_conditioner>, 主卧窗帘<window_covering>, 主卧窗户传感器<contact_sensor>, 主卧运动传感器<occupancy_sensor>
- second_bedroom: 次卧温度传感器<temperature_sensor>, 次卧灯<dimmable_light>, 次卧窗帘<window_covering>, 次卧窗户传感器<contact_sensor>, 次卧运动传感器<occupancy_sensor>

## Deterministic Signals
{
  "room_activity": {
    "living_room": 406,
    "master_bedroom": 516,
    "second_bedroom": 336,
    "kitchen": 304,
    "bathroom": 48,
    "entrance": 232
  },
  "attribute_frequency": {
    "MeasuredValue": 1156,
    "Occupancy": 649,
    "OnOff": 17,
    "StateValue": 7,
    "LockState": 5,
    "SystemMode": 1,
    "OperationalState": 1,
    "CurrentPositionLiftPercent100ths": 1
  },
  "lock_state_flips": 5,
  "occupancy_events": 649,
  "temperature_patterns": [],
  "value_format_hints": {
    "temperature": "MeasuredValue is shown as Celsius with the raw integer preserved in parentheses.",
    "occupancy": "0=unoccupied, 1=occupied",
    "lock_state": "enumerated lock state rendered as label + raw code"
  }
}

## Chunk

## Query
以下是过去 24 小时的设备活动日志。请分析是否存在异常行为模式，并说明推理过程。

## Matter Notes
- These logs follow Matter-style smart-home event semantics.
- TemperatureMeasurement.MeasuredValue is represented in centi-degrees Celsius in this benchmark: 2466 means 24.66 C, not 2466 C.
- BooleanState and other protocol booleans should be interpreted using transitions and surrounding events, not naive natural-language assumptions from a single isolated value.
- OccupancySensing.Occupancy uses 0=unoccupied and 1=occupied.
- DoorLock.LockState is an enumerated state; formatted logs may show both the label and the raw code.
- A device-fault conclusion requires direct fault evidence such as stuck values, repeated non-recovery, explicit alarm/fault events, or impossible state transitions. Scaled temperature values alone are not enough.

## Triage
{
  "primary_task_profile": "behavior-sequence",
  "secondary_task_profile": "none",
  "query_anchor": {
    "target_rooms": ["all"],
    "target_devices": ["all"],
    "target_question": "分析过去24小时设备活动日志是否存在异常行为模式"
  },
  "focus_rooms": ["kitchen", "living_room", "master_bedroom", "entrance", "bathroom"],
  "focus_devices": ["kitchen_temp_sensor", "kitchen_cook_surface", "water_leak_detector", "door_lock", "contact_sensor"],
  "focus_chunk_ids": ["C05", "C16", "C02", "C22"],
  "suspected_patterns": [
    "厨房温度传感器短暂缺失后恢复（可能传感器故障或干扰）",
    "人不在时厨房灯和灶具被打开（可能异常使用或误报）",
    "入户门锁解锁后长时间未上锁（可能安全隐患）",
    "卫生间漏水传感器无日志，但漏水风险需评估",
    "夜间阳台门传感器未记录开关，但温度上升一致，需排除门未关"
  ],
  "why_these_chunks": [
    "C05 包含厨房温度传感器短暂None值，以及厨房灯、灶具在无人时段开启，是模式异常的关键时段",
    "C16 包含入户门锁解锁、门磁打开，跟踪门状态变化和后续锁状态可判断行为是否正常",
    "C02 包含清晨灯光和温度变化，可检查夜间活动模式",
    "C22 包含深夜至凌晨的传感器状态，可对比温度变化和门窗状态一致性"
  ]
}

## Investigator
```json
{
  "normal_hypotheses": [
    {
      "id": "N1",
      "description": "全体家庭成员在02:35-03:00期间因异常原因（如夜起、雷雨、噪音等）同时醒来，打开客厅和厨房灯，活动约30分钟后各自回房继续休息。温度随后正常回升。",
      "evidence": [
        "C02显示02:35客厅灯亮，02:37厨房灯亮，与02:30-02:35间起居室占用传感器从0变1一致",
        "C01显示所有人在01:30-02:30期间均为unoccupied，符合深夜睡眠状态",
        "C01中02:30时入口占用传感器为0，但02:40变为1，表明有人移动到入口区域",
        "C02中03:00时所有占用传感器变回unoccupied，表明约30分钟活动后所有人回房",
        "C01-C03中温度从01:20的23.04C持续上升至04:00的24.08C，整体升温趋势合理（人员活动+人体散热）",
        "凌晨2-3点醒来活动（夜起、喝水、检查噪音等）是常见的人类行为"
      ],
      "weaknesses": [
        "为什么所有房间的占用传感器在02:30左右几乎同时触发？可能只是一个人从卧室走到客厅触发了客厅传感器，但入口传感器随后也被触发。如果只是一个人，厨房灯和客厅灯同时打开（02:35客厅灯，02:37厨房灯），暗示可能不止一人或有人开了两个灯",
        "温度上升从01:50开始已持续（从23.14→23.35C的较小幅度），不完全是活动导致"
      ]
    },
    {
      "id": "N2",