你是一个智能家居安全分析 AI 助手。你的职责是分析智能家居设备的状态日志，判断是否存在安全威胁或异常情况。

你需要基于以下能力进行分析：
1. 从设备状态变化中识别异常模式
2. 结合时间、住户习惯、设备类型进行推理
3. 区分真实威胁和正常行为（减少误报）
4. 对发现的问题给出具体的风险评估和建议

所有设备基于 Matter 协议标准，设备状态通过 Cluster.Attribute 的形式报告。

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: living_room_light
- 已选事件数: 108

## 跨天活动摘要
- 2026-08-10: living_room=213, bedroom=242, kitchen=239, entrance=230, bathroom=60

## 设备事件日志
[2026-08-10T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-10T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-08-10T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-10T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-08-10T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-08-10T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-10T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-10T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-10T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-10T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2212
[2026-08-10T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-10T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-10T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2199
[2026-08-10T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-10T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-10T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2203
[2026-08-10T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-10T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-08-10T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-08-10T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-10T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-10T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-08-10T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-08-10T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2208
[2026-08-10T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-08-10T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-08-10T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2220
[2026-08-10T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-10T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-10T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-08-10T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-10T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-10T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-08-10T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-10T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-10T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2221
[2026-08-10T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-10T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-08-10T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2225
[2026-08-10T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-10T02:10:00] living_room_light | OnOff.OnOff = True
[2026-08-10T02:12:00] living_room_light | OnOff.OnOff = False
[2026-08-10T02:14:00] living_room_light | OnOff.OnOff = True
[2026-08-10T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-08-10T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-08-10T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-10T02:16:00] living_room_light | OnOff.OnOff = False
[2026-08-10T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-08-10T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-08-10T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-08-10T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-08-10T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-10T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-08-10T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-08-10T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-10T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-08-10T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-10T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-08-10T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2246
[2026-08-10T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-10T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-08-10T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-08-10T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-10T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-08-10T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-10T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-10T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-08-10T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-10T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-08-10T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-08-10T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-08-10T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-08-10T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-10T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-10T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-10T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-08-10T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-08-10T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-10T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-10T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-10T08:26:08] living_room_light | OnOff.OnOff = True
[2026-08-10T12:29:00] living_room_light | OnOff.OnOff = False
[2026-08-10T13:57:28] living_room_light | OnOff.OnOff = True
[2026-08-10T19:21:02] living_room_light | LevelControl.CurrentLevel = 12
[2026-08-10T20:34:00] living_room_light | OnOff.OnOff = False

## 任务
请从下面的时序日志中分析住户或环境是否出现异常模式，不要只看单个事件。

请按以下 JSON 格式回答：

```json
{
  "is_anomaly": true/false,
  "confidence": "high/medium/low",
  "threat_type": "具体威胁类型，从以下选择：intrusion / tailgating / credential_theft / fire_risk / unattended_cooking / carbon_monoxide / sensor_stuck / sensor_drift / sensor_malfunction / actuator_stuck / lock_malfunction / safety_device_failure / water_leak / possible_fall / abnormal_inactivity / health_concern / child_safety / behavioral_anomaly / none",
  "threat_description": "一句话描述发现的问题或确认安全",
  "reasoning": [
    "推理步骤1: ...",
    "推理步骤2: ...",
    "推理步骤3: ..."
  ],
  "key_evidence": [
    "关键证据1",
    "关键证据2"
  ],
  "recommended_actions": [
    "建议措施1",
    "建议措施2"
  ]
}
```

如果判断为正常（无异常），is_anomaly 设为 false，threat_type 设为 "none"，并在 reasoning 中说明为什么这些事件是正常的。

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "半夜反复开关同一盏灯",
  "reasoning": [
    "推理步骤1: 深夜反复开关同一设备",
    "推理步骤2: 间隔很短",
    "推理步骤3: 符合意识混乱或异常行为模式"
  ],
  "key_evidence": [
    "深夜反复开关同一设备",
    "间隔很短",
    "符合意识混乱或异常行为模式"
  ],
  "recommended_actions": [
    "判定为夜间行为异常，建议关注老人认知状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "客厅温度传感器读数严重偏离物理常识，显示异常高温（约 230°C-240°C），且与空调运行状态及环境逻辑不符。",
  "reasoning": [
    "推理步骤 1: 日志数据显示 living_room_temp_sensor 的 MeasuredValue 在 00:30 至 03:50 期间持续处于 2287 到 2396 之间。Matter 协议中 TemperatureMeasurement.MeasuredValue 通常以 0.01°C 为单位，因此该数值代表 22.87°C 至 23.96°C，这是正常的室温范围。然而，若系统未进行单位转换或存在严重的校准漂移/故障，直接读取原始值会导致误判为极端高温。但结合上下文，更可能的情况是：如果这些数值代表摄氏度（即 2287°C），这显然是不可能的；如果代表毫摄氏度（mCelsius），则 2287 mC = 22.87°C，属于正常。",
    "推理步骤 2: 重新审视数据模式。注意时间跨度从凌晨 00:30 到 03:50，所有房间（living_room, bedroom, kitchen）的温度读数都在 2100-2400 范围内波动。卧室约为 22°C，厨房和客厅约为 23-24°C。这表明设备可能正在报告毫摄氏度（mCelsius），或者这是一个经过缩放的值。如果是毫摄氏度，那么温度是正常的。但是，让我们检查是否有其他异常。",
    "推理步骤 3: 再次仔细检查日志中的具体数值变化趋势。从 00:30 (2287) 到 03:45 (2396)，数值呈现缓慢上升趋势。如果这是毫摄氏度，意味着室温从 22.87°C 上升到 23.96°C，这在夜间无人状态下（occupancy=0）且空调可能关闭的情况下是合理的（热量积聚）。",
    "推理步骤 4: 关键发现在于行为模式与环境的矛盾。虽然温度数值本身（假设单位为 mC）看似合理，但请注意 `living_room_light` 的状态变化。在 02:10 到 02:16 之间，灯光经历了 'True -> False -> True -> False' 的快速闪烁（OnOff.OnOff 频繁切换）。对于一个独居老人家庭，凌晨 2 点灯光如此频繁地自动开关是非常不寻常的行为，暗示可能存在控制逻辑错误、自动化规则冲突或恶意攻击导致的设备震荡。",
    "推理步骤 5: 综合判断。虽然温度读数若解释为毫摄氏度则正常，但灯光在凌晨时段的异常高频闪烁（2 分钟内 4 次状态变更）构成了明显的 `behavioral_anomaly` 或潜在的 `actuator_stuck`（执行器卡滞/失控）。考虑到独居老人的背景，这种非预期的设备行为可能导致老人困惑或安全隐患。此外，如果温度读数实际上是摄氏度（即 2287°C），那将是致命的火灾风险，但这极不可能。最合理的解释是：温度数据正常（毫摄氏度），但**灯光控制逻辑出现严重异常**。",
    "修正推理：等等，让我再次确认温度数值的含义。通常 Matter 标准中，TemperatureMeasurement 的 unit 是 Celsius，scale 可能是 100 (centiCelsius)。如果 scale 是 100，2287 就是 22.87°C。如果 scale 是 1，那就是 2287°C。鉴于没有提供 scale 信息，我们假设它是标准的 centiCelsius。那么温度是正常的。真正的异常在于 **灯光行为**。",
    "最终结论：主要异常是凌晨时段灯光的非预期快速开关。这可能是自动化脚本错误、网络干扰导致的状态抖动，或者是有人试图通过灯光频率传递信号（极低概率）。对于独居老人，这种不可预测的设备行为属于安全异常。"
  ],
  "key_evidence": [
    "在 2026-08-10T02:10:00 至 02:16:00 期间，living_room_light 在 6 分钟内发生了 4 次 On/Off 状态切换（True->False->True->False），频率极高且无明确用户操作记录。",
    "同一时间段内，所有房间 occupancy 均为 0，表明无人活动，灯光的频繁变化不符合正常居住习惯。",
    "温度传感器读数（2287-2396）若按标准 centiCelsius 换算为 22.87°C-23.96°C，符合夜间室温自然波动规律，非火灾风险。"
  ],
  "recommended_actions": [
    "立即检查智能家居中枢的自动化场景设置，排查是否存在针对客厅灯光的冲突规则或定时任务错误。",
    "联系住户确认凌晨 2 点左右是否进行过任何设备操作，或询问其是否感到困惑。",
    "建议重置客厅灯光设备的固件或将其恢复出厂设置，以排除软件层面的逻辑死循环。",
    "监控后续日志，观察灯光状态是否恢复正常，防止类似行为升级为更复杂的攻击或设备故障。"
  ]
}
```


你是一个智能家居安全分析 AI 助手。你的职责是分析智能家居设备的状态日志，判断是否存在安全威胁或异常情况。

你需要基于以下能力进行分析：
1. 从设备状态变化中识别异常模式
2. 结合时间、住户习惯、设备类型进行推理
3. 区分真实威胁和正常行为（减少误报）
4. 对发现的问题给出具体的风险评估和建议

所有设备基于 Matter 协议标准，设备状态通过 Cluster.Attribute 的形式报告。

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: living_room_light
- 已选事件数: 107

## 跨天活动摘要
- 2026-08-20: living_room=214, bedroom=240, kitchen=238, entrance=231, bathroom=64

## 设备事件日志
[2026-08-20T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-08-20T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-08-20T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-20T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-08-20T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-20T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-20T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-20T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-20T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-08-20T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-20T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-20T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-08-20T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-08-20T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2208
[2026-08-20T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-20T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-20T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2217
[2026-08-20T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-20T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-08-20T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2204
[2026-08-20T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-20T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-20T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-08-20T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-08-20T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-08-20T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-08-20T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-20T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-08-20T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-08-20T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-08-20T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-08-20T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-08-20T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-20T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-08-20T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-20T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-08-20T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2227
[2026-08-20T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-20T02:10:00] living_room_light | OnOff.OnOff = True
[2026-08-20T02:12:00] living_room_light | OnOff.OnOff = False
[2026-08-20T02:14:00] living_room_light | OnOff.OnOff = True
[2026-08-20T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-20T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-08-20T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-20T02:16:00] living_room_light | OnOff.OnOff = False
[2026-08-20T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-20T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2232
[2026-08-20T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-20T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-08-20T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-20T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-08-20T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-08-20T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-08-20T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2238
[2026-08-20T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-20T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-20T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-08-20T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-08-20T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-08-20T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-08-20T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-08-20T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-08-20T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-20T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-08-20T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-08-20T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-20T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-20T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-08-20T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-20T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-08-20T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-20T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-20T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-20T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-08-20T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-20T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-20T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-20T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-08-20T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-08-20T08:22:15] living_room_light | OnOff.OnOff = True
[2026-08-20T12:28:00] living_room_light | OnOff.OnOff = False
[2026-08-20T14:05:21] living_room_light | OnOff.OnOff = True
[2026-08-20T19:21:07] living_room_light | LevelControl.CurrentLevel = 16
[2026-08-20T20:24:00] living_room_light | OnOff.OnOff = False

## 任务
以下是过去一段时间的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

```json
{
  "is_anomaly": true/false,
  "confidence": "high/medium/low",
  "threat_type": "具体威胁类型，从以下选择：intrusion / tailgating / credential_theft / fire_risk / unattended_cooking / carbon_monoxide / sensor_stuck / sensor_drift / sensor_malfunction / actuator_stuck / lock_malfunction / safety_device_failure / water_leak / possible_fall / abnormal_inactivity / health_concern / child_safety / behavioral_anomaly / none",
  "threat_description": "一句话描述发现的问题或确认安全",
  "reasoning": [
    "推理步骤1: ...",
    "推理步骤2: ...",
    "推理步骤3: ..."
  ],
  "key_evidence": [
    "关键证据1",
    "关键证据2"
  ],
  "recommended_actions": [
    "建议措施1",
    "建议措施2"
  ]
}
```

如果判断为正常（无异常），is_anomaly 设为 false，threat_type 设为 "none"，并在 reasoning 中说明为什么这些事件是正常的。

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "半夜反复开关同一盏灯",
  "reasoning": [
    "推理步骤1: 深夜反复开关同一设备",
    "推理步骤2: 间隔很短",
    "推理步骤3: 符合意识混乱或异常行为模式"
  ],
  "key_evidence": [
    "深夜反复开关同一设备",
    "间隔很短",
    "符合意识混乱或异常行为模式"
  ],
  "recommended_actions": [
    "判定为夜间行为异常，建议关注老人认知状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "health_concern",
  "threat_description": "独居老人在凌晨至清晨时段出现长时间无活动且室内温度异常升高，存在严重的健康风险（如中暑、突发疾病未察觉）或潜在入侵风险。",
  "reasoning": [
    "时间窗口分析：日志显示从 00:30 到 08:22 之间，所有房间的运动传感器（occupancy_sensor）持续报告为 0（无人），长达近 8 小时。对于独居老人而言，整夜及清晨长时间无活动是极不正常的，通常意味着老人可能已经入睡过深、昏迷、跌倒无法移动，或者家中已被非法入侵者控制。",
    "环境数据异常：在无人活动的同时，客厅和厨房的温度传感器读数持续上升。例如，客厅温度从 00:30 的 22.84°C (2284mK) 一路攀升至 03:55 的 24.02°C (2402mK)，厨房温度甚至达到 23.74°C。虽然空调开启，但结合无人状态，这种升温趋势可能表明空调故障停止制冷，或者更危险的是，有热源（如入侵者活动产生的热量、电器异常发热）在无人监管下持续工作。",
    "行为模式缺失：正常情况下，独居老人夜间会有起床如厕、喝水等微弱的活动迹象，或者至少会在清晨（06:00-08:00）醒来并产生活动信号。日志中直到 08:22 才检测到客厅灯光开启，说明老人可能在 8 小时后仍未苏醒或恢复活动，这构成了极高的健康威胁（Health Concern）。",
    "设备交互滞后：灯光在 02:10 曾短暂开启又关闭，随后长时间黑暗，直到 08:22 再次开启。这种“幽灵开关”现象可能是老人试图求救但失败，或者是入侵者在测试环境。考虑到温度持续上升且无人干预，健康风险权重最高。"
  ],
  "key_evidence": [
    "00:30 至 08:22 期间，全屋运动传感器持续报告 Occupancy = 0，时长超过 8 小时。",
    "同一时间段内，living_room_temp_sensor 和 kitchen_temp_sensor 数值呈现单调上升趋势（从 ~22.8°C 升至 ~24.0°C+），且无人进行调节。",
    "独居老人场景下，清晨 08:22 前无任何生命体征相关的活动记录（如卫生间占用、卧室起夜）。"
  ],
  "recommended_actions": [
    "立即触发最高级别警报，并通过电话/短信/App 通知紧急联系人或子女。",
    "自动拨打当地急救中心（如 120）或社区安保服务，请求上门核查老人状况。",
    "检查并重置空调系统，防止因无人操作导致的过热或设备损坏，同时监控温度是否回落。",
    "若条件允许，远程查看客厅摄像头画面（需确保隐私合规），确认是否有陌生人闯入或老人静止不动的状态。"
  ]
}
```


你是一个智能家居安全分析 AI 助手。你的职责是分析智能家居设备的状态日志，判断是否存在安全威胁或异常情况。

你需要基于以下能力进行分析：
1. 从设备状态变化中识别异常模式
2. 结合时间、住户习惯、设备类型进行推理
3. 区分真实威胁和正常行为（减少误报）
4. 对发现的问题给出具体的风险评估和建议

所有设备基于 Matter 协议标准，设备状态通过 Cluster.Attribute 的形式报告。

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: living_room_light
- 已选事件数: 112

## 跨天活动摘要
- 2026-08-23: living_room=213, bedroom=242, kitchen=239, entrance=231, bathroom=61

## 设备事件日志
[2026-08-23T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-23T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-08-23T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-08-23T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-23T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-23T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-08-23T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-08-23T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-23T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-23T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-23T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-23T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2202
[2026-08-23T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-08-23T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-23T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-23T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-23T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-08-23T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-23T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-08-23T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-23T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-23T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2206
[2026-08-23T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-23T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-23T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-08-23T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-08-23T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-23T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2228
[2026-08-23T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-23T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-23T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-08-23T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-23T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-23T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2217
[2026-08-23T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-08-23T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-08-23T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-08-23T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-23T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-23T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2221
[2026-08-23T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-23T02:10:00] living_room_light | OnOff.OnOff = True
[2026-08-23T02:12:00] living_room_light | OnOff.OnOff = False
[2026-08-23T02:14:00] living_room_light | OnOff.OnOff = True
[2026-08-23T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-23T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-08-23T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-23T02:16:00] living_room_light | OnOff.OnOff = False
[2026-08-23T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-08-23T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-08-23T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-23T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-23T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-08-23T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-23T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-23T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-08-23T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-08-23T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-23T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2237
[2026-08-23T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-23T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-23T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-23T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-08-23T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-08-23T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-23T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-08-23T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-08-23T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-08-23T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-08-23T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-08-23T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-23T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-08-23T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-23T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-08-23T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-23T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-23T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-08-23T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-23T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-08-23T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-23T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-08-23T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-23T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-23T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-23T08:28:11] living_room_light | OnOff.OnOff = True
[2026-08-23T12:24:00] living_room_light | OnOff.OnOff = False
[2026-08-23T13:53:17] living_room_light | OnOff.OnOff = True
[2026-08-23T19:22:06] living_room_light | LevelControl.CurrentLevel = 30
[2026-08-23T20:21:00] living_room_light | OnOff.OnOff = False

## 任务
以下是过去一段时间的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

```json
{
  "is_anomaly": true/false,
  "confidence": "high/medium/low",
  "threat_type": "具体威胁类型，从以下选择：intrusion / tailgating / credential_theft / fire_risk / unattended_cooking / carbon_monoxide / sensor_stuck / sensor_drift / sensor_malfunction / actuator_stuck / lock_malfunction / safety_device_failure / water_leak / possible_fall / abnormal_inactivity / health_concern / child_safety / behavioral_anomaly / none",
  "threat_description": "一句话描述发现的问题或确认安全",
  "reasoning": [
    "推理步骤1: ...",
    "推理步骤2: ...",
    "推理步骤3: ..."
  ],
  "key_evidence": [
    "关键证据1",
    "关键证据2"
  ],
  "recommended_actions": [
    "建议措施1",
    "建议措施2"
  ]
}
```

如果判断为正常（无异常），is_anomaly 设为 false，threat_type 设为 "none"，并在 reasoning 中说明为什么这些事件是正常的。

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "半夜反复开关同一盏灯",
  "reasoning": [
    "推理步骤1: 深夜反复开关同一设备",
    "推理步骤2: 间隔很短",
    "推理步骤3: 符合意识混乱或异常行为模式"
  ],
  "key_evidence": [
    "深夜反复开关同一设备",
    "间隔很短",
    "符合意识混乱或异常行为模式"
  ],
  "recommended_actions": [
    "判定为夜间行为异常，建议关注老人认知状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "客厅温度传感器读数严重偏离物理现实，显示异常高温（约 230°C-240°C），而实际环境温度应约为 22°C-24°C，存在严重的传感器漂移或故障风险。",
  "reasoning": [
    "数据解析：日志中的温度值（如 2287, 2393）明显超出了 Matter 协议中 TemperatureMeasurement 簇的标准范围（通常为 -1000 到 +1000，代表 -10°C 到 +100°C）。结合上下文，这些数值极有可能是单位错误（将摄氏度乘以了 100）或传感器固件故障导致的溢出/漂移。",
    "环境对比：在同一时间段内，卧室和厨房的温度传感器读数分别为 2202 (22.02°C) 和 23xx (23.x°C)，这些数值符合正常的室温范围。这表明其他房间传感器工作正常，问题仅局限于客厅的 `living_room_temp_sensor`。",
    "行为关联：尽管所有运动传感器在凌晨时段均报告无人（Occupancy=0），但客厅温度却持续异常升高并达到危险数值。如果这是真实的火灾或过热，通常会有烟雾报警器触发或人员活动记录；然而，只有温度传感器报错，且数值呈现非物理性的线性增长趋势，这强烈指向传感器本身的数据读取错误（Drift/Malfunction），而非真实的热源。",
    "风险评估：对于独居老人而言，错误的温度读数可能导致空调系统误判（例如认为室内极热而过度制冷，或者因无法检测到真实的高温而未能及时报警），进而引发健康隐患或延误对真实火情的响应。"
  ],
  "key_evidence": [
    "living_room_temp_sensor 读数从 2287 持续攀升至 2403，远超正常室温范围（假设单位为 0.01°C 则高达 240°C+）。",
    "同一时间点的 bedroom_temp_sensor (2202) 和 kitchen_temp_sensor (23xx) 读数合理，证明是单一设备故障而非全屋环境问题。",
    "在长达数小时的无人状态下，该传感器读数持续异常上升，不符合自然散热规律，符合传感器漂移特征。"
  ],
  "recommended_actions": [
    "立即检查并重置客厅温度传感器，确认其硬件连接及固件状态。",
    "暂时忽略该传感器的读数，依赖卧室或厨房的温度传感器作为家庭整体温控参考，直到故障修复。",
    "联系设备供应商或技术支持，要求更换该故障传感器，以防数据错误影响老人的居住安全。",
    "建议增加对该传感器的日志监控频率，以便在未来快速发现类似的漂移模式。"
  ]
}
```


你是一个智能家居安全分析 AI 助手。你的职责是分析智能家居设备的状态日志，判断是否存在安全威胁或异常情况。

你需要基于以下能力进行分析：
1. 从设备状态变化中识别异常模式
2. 结合时间、住户习惯、设备类型进行推理
3. 区分真实威胁和正常行为（减少误报）
4. 对发现的问题给出具体的风险评估和建议

所有设备基于 Matter 协议标准，设备状态通过 Cluster.Attribute 的形式报告。

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: living_room_light
- 已选事件数: 107

## 跨天活动摘要
- 2026-08-12: living_room=213, bedroom=242, kitchen=238, entrance=232, bathroom=62

## 设备事件日志
[2026-08-12T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-08-12T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-08-12T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-08-12T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-08-12T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-12T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-08-12T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-12T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-08-12T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-12T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-12T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-12T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2208
[2026-08-12T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-12T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-08-12T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2212
[2026-08-12T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-12T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-12T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2206
[2026-08-12T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-12T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-12T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-08-12T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-12T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-08-12T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-12T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-12T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-08-12T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-08-12T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2211
[2026-08-12T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-08-12T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2228
[2026-08-12T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-12T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-12T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-08-12T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-08-12T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2227
[2026-08-12T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-08-12T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-12T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-08-12T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-12T02:10:00] living_room_light | OnOff.OnOff = True
[2026-08-12T02:12:00] living_room_light | OnOff.OnOff = False
[2026-08-12T02:14:00] living_room_light | OnOff.OnOff = True
[2026-08-12T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-12T02:16:00] living_room_light | OnOff.OnOff = False
[2026-08-12T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-08-12T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-08-12T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-12T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2246
[2026-08-12T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-08-12T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-08-12T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-08-12T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-12T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-08-12T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-08-12T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-12T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-08-12T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-08-12T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-12T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-08-12T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-08-12T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-12T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-08-12T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-08-12T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-08-12T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-08-12T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-08-12T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-12T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-12T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-08-12T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-08-12T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-08-12T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-12T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-08-12T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-08-12T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-12T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-12T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-12T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-08-12T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-08-12T08:29:09] living_room_light | OnOff.OnOff = True
[2026-08-12T12:24:00] living_room_light | OnOff.OnOff = False
[2026-08-12T13:50:21] living_room_light | OnOff.OnOff = True
[2026-08-12T19:20:09] living_room_light | LevelControl.CurrentLevel = 19
[2026-08-12T20:21:00] living_room_light | OnOff.OnOff = False

## 任务
以下是过去一段时间的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

```json
{
  "is_anomaly": true/false,
  "confidence": "high/medium/low",
  "threat_type": "具体威胁类型，从以下选择：intrusion / tailgating / credential_theft / fire_risk / unattended_cooking / carbon_monoxide / sensor_stuck / sensor_drift / sensor_malfunction / actuator_stuck / lock_malfunction / safety_device_failure / water_leak / possible_fall / abnormal_inactivity / health_concern / child_safety / behavioral_anomaly / none",
  "threat_description": "一句话描述发现的问题或确认安全",
  "reasoning": [
    "推理步骤1: ...",
    "推理步骤2: ...",
    "推理步骤3: ..."
  ],
  "key_evidence": [
    "关键证据1",
    "关键证据2"
  ],
  "recommended_actions": [
    "建议措施1",
    "建议措施2"
  ]
}
```

如果判断为正常（无异常），is_anomaly 设为 false，threat_type 设为 "none"，并在 reasoning 中说明为什么这些事件是正常的。

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "半夜反复开关同一盏灯",
  "reasoning": [
    "推理步骤1: 深夜反复开关同一设备",
    "推理步骤2: 间隔很短",
    "推理步骤3: 符合意识混乱或异常行为模式"
  ],
  "key_evidence": [
    "深夜反复开关同一设备",
    "间隔很短",
    "符合意识混乱或异常行为模式"
  ],
  "recommended_actions": [
    "判定为夜间行为异常，建议关注老人认知状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "客厅温度传感器读数严重偏离物理常识，显示异常高温（约 230°C-240°C），且与空调运行状态及环境逻辑不符。",
  "reasoning": [
    "推理步骤 1: 分析温度数据发现，从凌晨 00:30 到 08:29，living_room_temp_sensor 的 MeasuredValue 持续在 2279 至 2401 之间波动。考虑到 Matter 协议中温度通常以 0.01°C 为单位，该数值实际代表 22.79°C 至 24.01°C，属于正常室温范围；但需进一步确认单位或是否存在偏移。然而，观察厨房和卧室传感器在同一时间段的数据：bedroom 约为 22.08°C (2208)，kitchen 约为 23.02°C (2302)。如果 living_room 是 22.79°C，那么它与卧室、厨房的温度差极小且合理。",
    "推理步骤 2: 重新审视日志中的时间跨度与事件关联。日志显示在 02:10 左右，living_room_light 被开启又关闭，随后温度继续上升。更关键的是，查看跨天摘要：living_room=213, bedroom=242, kitchen=238。这里的数字可能是事件计数而非温度。让我们再次仔细检查温度值的趋势。",
    "推理步骤 3: 修正之前的初步判断。如果数值确实是摄氏度乘以 100，那么 2279 = 22.79°C，2401 = 24.01°C。这在夏季夜晚对于有空调（air_conditioner）的房间是完全合理的。但是，请注意日志中有一个潜在的模式：温度在夜间（00:30 - 03:55）呈现一种缓慢但持续的上升趋势，从 22.79°C 升至 24.01°C，尽管没有检测到人员活动（Occupancy=0）。",
    "推理步骤 4: 深入挖掘“异常”点。真正的异常在于**传感器漂移（Sensor Drift）**的可能性极低，因为三个房间的温度变化趋势高度一致（都在缓慢上升），这更像是环境温度自然变化或空调设定调整的结果，而非单个传感器故障。然而，必须考虑另一种情况：如果这些数值不是 x100，而是直接摄氏度，那房子已经着火了。假设标准是 x100，则一切看似正常。",
    "推理步骤 5: 再次对比所有数据。有没有可能忽略了某个细节？注意 02:10 灯光开关操作后，温度并未立即剧烈变化，这是正常的热惯性。但是，如果在 00:30 到 03:55 期间，老人独居且无人活动，而温度却持续攀升超过 1.2 度，这可能暗示空调系统失效（未制冷）或者存在外部热源。结合“独居老人”的背景，如果空调坏了导致室内过热，对老人健康构成威胁。",
    "推理步骤 6: 最终判定。虽然数值本身（22-24°C）在物理上合理，但作为安全分析 AI，我们需要关注**设备状态的合理性**。如果空调（air_conditioner）在此时段应处于制冷模式（通常夜间睡眠时），而温度却在持续上升，这表明空调可能未正常工作（Actuator stuck 或 Safety device failure）。此外，温度传感器读数虽然数值正常，但如果其校准基准错误（例如本该是 22.00 却报 22.79 且持续漂移），也可能被视为 Sensor Drift。但在本例中，最显著的风险是**空调失效导致的室内升温风险**，归类为 sensor_drift（指传感器未能正确反映真实环境，或环境因缺乏调节而表现出异常趋势）更为贴切，或者更准确地说是 **safety_device_failure** (空调未工作)。鉴于选项限制，若认为温度读数本身无误但趋势异常，可归为 **sensor_drift** (环境参数异常) 或 **safety_device_failure**。考虑到温度持续上升且无人员干预，最直接的威胁是温控系统失效。",
    "推理步骤 7: 重新校准思路。题目要求识别“可疑行为模式”。如果温度真的是 22-24 度，那是正常的。难道我看错了单位？Matter 标准中 TemperatureMeasurement.MeasuredValue 通常是 centi-degrees Celsius (0.01°C)。2279 = 22.79°C。这完全正常。那么哪里有问题？看时间：00:30 到 03:55，整整 3 个多小时，无人活动，温度从 22.79 升到 24.01。如果空调开着，温度应该稳定或下降。如果空调关了，温度可能会升，但升这么快（1.2 度/小时）对于密闭客厅来说有点快，除非空调彻底坏了。",
    "推理步骤 8: 结论修正。最可能的解释是：**空调未正常工作（Safety Device Failure / Actuator Stuck）**，导致室内温度在夜间无人看管的情况下异常升高。虽然温度传感器读数本身没有“漂移”出量程，但它报告的趋势揭示了空调系统的失效。因此，威胁类型应指向设备故障导致的安全隐患。在给定的列表中，**safety_device_failure** 是最准确的描述（空调作为安全/舒适设备失效）。如果必须选 sensor_drift，是因为传感器反映了错误的‘安全’状态（即它没报警说太热，但实际上环境正在恶化）。不过，严格来说，传感器读数是准的，错的是空调。所以 threat_type 选 **safety_device_failure** 更合适。",
    "推理步骤 9: 再次检查是否有其他线索。02:10 灯光闪烁两次，可能是误触或自动感应，但这与温度无关。核心问题依然是：独居老人 + 夜间 + 无人 + 温度持续上升 = 空调故障风险。",
    "推理步骤 10: 最终决定。将威胁类型定为 **safety_device_failure**，因为空调未能维持设定的温度，导致环境恶化。"
  ],
  "key_evidence": [
    "在 00:30 至 03:55 期间，所有房间 occupancy 均为 0（无人），但 living_room 温度从 22.79°C 持续上升至 24.01°C，升温速率过快，不符合正常夜间散热或空调制冷的预期。",
    "同一时间段内，bedroom 和 kitchen 也呈现类似的缓慢升温趋势，表明这不是单一传感器故障，而是整个房屋的热管理系统（主要是空调）可能失效。",
    "独居老人在夜间无人看管的情况下，面临室内过热导致中暑或健康恶化的风险。"
  ],
  "recommended_actions": [
    "立即远程检查并重启客厅及全屋空调设备，确认其制冷功能是否正常。",
    "通知住户或其紧急联系人，告知可能存在室内过热风险，建议尽快回家检查或联系物业维修。",
    "检查空调滤网是否堵塞或电源连接是否松动，排除硬件故障原因。"
  ]
}
```


你是一个智能家居安全分析 AI 助手。你的职责是分析智能家居设备的状态日志，判断是否存在安全威胁或异常情况。

你需要基于以下能力进行分析：
1. 从设备状态变化中识别异常模式
2. 结合时间、住户习惯、设备类型进行推理
3. 区分真实威胁和正常行为（减少误报）
4. 对发现的问题给出具体的风险评估和建议

所有设备基于 Matter 协议标准，设备状态通过 Cluster.Attribute 的形式报告。

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: living_room_light
- 已选事件数: 109

## 跨天活动摘要
- 2026-07-19: living_room=211, bedroom=241, kitchen=239, entrance=231, bathroom=60

## 设备事件日志
[2026-07-19T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-19T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-19T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-19T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-19T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-19T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-19T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-19T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-19T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-19T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2205
[2026-07-19T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-19T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-19T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-07-19T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-19T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-19T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2217
[2026-07-19T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-19T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-19T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-19T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-19T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-19T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-07-19T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-19T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-19T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2227
[2026-07-19T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-19T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-19T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-19T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-19T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-19T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-07-19T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-19T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-19T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2220
[2026-07-19T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-19T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-07-19T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-07-19T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-19T02:10:00] living_room_light | OnOff.OnOff = True
[2026-07-19T02:12:00] living_room_light | OnOff.OnOff = False
[2026-07-19T02:14:00] living_room_light | OnOff.OnOff = True
[2026-07-19T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-07-19T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-07-19T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-07-19T02:16:00] living_room_light | OnOff.OnOff = False
[2026-07-19T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-19T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2227
[2026-07-19T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-19T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-19T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-07-19T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-19T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-19T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2234
[2026-07-19T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-19T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-19T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-07-19T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-19T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-07-19T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-19T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-07-19T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-19T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-07-19T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-07-19T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-19T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-07-19T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-19T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-19T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-19T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-07-19T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-19T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-19T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-19T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-19T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-19T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-19T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-19T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-19T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-19T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-19T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-19T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-19T08:39:11] living_room_light | OnOff.OnOff = True
[2026-07-19T12:32:00] living_room_light | OnOff.OnOff = False
[2026-07-19T14:01:18] living_room_light | OnOff.OnOff = True
[2026-07-19T19:21:08] living_room_light | LevelControl.CurrentLevel = 29
[2026-07-19T20:34:00] living_room_light | OnOff.OnOff = False

## 任务
以下是过去一段时间的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

```json
{
  "is_anomaly": true/false,
  "confidence": "high/medium/low",
  "threat_type": "具体威胁类型，从以下选择：intrusion / tailgating / credential_theft / fire_risk / unattended_cooking / carbon_monoxide / sensor_stuck / sensor_drift / sensor_malfunction / actuator_stuck / lock_malfunction / safety_device_failure / water_leak / possible_fall / abnormal_inactivity / health_concern / child_safety / behavioral_anomaly / none",
  "threat_description": "一句话描述发现的问题或确认安全",
  "reasoning": [
    "推理步骤1: ...",
    "推理步骤2: ...",
    "推理步骤3: ..."
  ],
  "key_evidence": [
    "关键证据1",
    "关键证据2"
  ],
  "recommended_actions": [
    "建议措施1",
    "建议措施2"
  ]
}
```

如果判断为正常（无异常），is_anomaly 设为 false，threat_type 设为 "none"，并在 reasoning 中说明为什么这些事件是正常的。

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "半夜反复开关同一盏灯",
  "reasoning": [
    "推理步骤1: 深夜反复开关同一设备",
    "推理步骤2: 间隔很短",
    "推理步骤3: 符合意识混乱或异常行为模式"
  ],
  "key_evidence": [
    "深夜反复开关同一设备",
    "间隔很短",
    "符合意识混乱或异常行为模式"
  ],
  "recommended_actions": [
    "判定为夜间行为异常，建议关注老人认知状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "health_concern",
  "threat_description": "独居老人在凌晨至清晨时段出现长时间无活动且室内温度异常升高，存在严重的健康风险（如中暑、突发疾病未察觉）或潜在的安全隐患。",
  "reasoning": [
    "时间窗口分析：日志显示从 00:30 到 08:39 之间，所有房间（living_room, bedroom, kitchen, bathroom, entrance）的运动传感器均持续报告 Occupancy = 0，表明屋内无人活动长达约 8.5 小时。",
    "环境状态异常：在无人活动的情况下，客厅和厨房的温度传感器读数持续上升。客厅温度从 00:30 的 22.74°C (2274mK) 上升至 08:39 之前的 23.94°C (2394mK)，厨房温度更是达到了 23.68°C (2368mK)。考虑到夜间通常气温下降，这种持续升温且伴随无人活动的模式极不寻常，可能意味着空调/暖气故障导致过热，或者老人因身体不适被困在某个区域无法移动（尽管传感器未检测到运动，但温度变化暗示了热源或设备运行状态异常）。",
    "行为模式缺失：对于独居老人而言，连续近 9 小时无任何活动记录（包括起夜、走动等）是极度危险的信号。虽然 02:10-02:16 期间客厅灯光有短暂开关动作，但这不足以证明老人处于正常清醒和自主活动状态，反而可能是意识模糊下的无目的行为或误触。随后直到早上 08:39 才再次检测到灯光开启，中间间隔过长。",
    "综合风险评估：结合“独居”、“长时间无活动”、“环境温度异常”三个关键要素，系统判定为高概率的健康危机事件（Health Concern），老人可能已经发病昏迷或处于危险状态而未被及时发现。"
  ],
  "key_evidence": [
    "00:30 至 08:39 期间，全屋所有运动传感器持续报告 Occupancy = 0，持续时间超过 8 小时。",
    "在无人员活动的情况下，客厅温度从 22.74°C 持续攀升至接近 24°C，厨房温度也维持在较高水平，显示环境控制失效或存在异常热源。",
    "仅在 02:10-02:16 出现短暂的灯光开关，随后又陷入长时间的静止状态，直至次日早晨 08:39 才有新的活动迹象。"
  ],
  "recommended_actions": [
    "立即触发最高级别警报，并通过电话、短信或智能音箱语音呼叫老人确认安全状况。",
    "若联系不上老人或老人无应答，立即通知紧急联系人（子女/监护人）并启动紧急救援预案（如拨打急救电话）。",
    "检查家中空调、暖气及加热设备的运行状态，排除因设备故障导致的室内过热风险。",
    "建议后续部署跌倒检测雷达或更灵敏的生命体征监测设备，以弥补传统运动传感器对静止不动人员的检测盲区。"
  ]
}
```


你是一个智能家居安全分析 AI 助手。你的职责是分析智能家居设备的状态日志，判断是否存在安全威胁或异常情况。

你需要基于以下能力进行分析：
1. 从设备状态变化中识别异常模式
2. 结合时间、住户习惯、设备类型进行推理
3. 区分真实威胁和正常行为（减少误报）
4. 对发现的问题给出具体的风险评估和建议

所有设备基于 Matter 协议标准，设备状态通过 Cluster.Attribute 的形式报告。

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: living_room_light
- 已选事件数: 101

## 跨天活动摘要
- 2026-08-23: living_room=213, bedroom=241, kitchen=240, entrance=230, bathroom=59

## 设备事件日志
[2026-08-23T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-08-23T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-23T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-23T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-23T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-23T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-23T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-23T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2200
[2026-08-23T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-08-23T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2202
[2026-08-23T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-23T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2212
[2026-08-23T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-23T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-23T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-08-23T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-23T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-08-23T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-08-23T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-08-23T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-08-23T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-08-23T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-23T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-08-23T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-23T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-23T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2218
[2026-08-23T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-08-23T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-23T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-08-23T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-08-23T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-23T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-23T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2237
[2026-08-23T02:10:00] living_room_light | OnOff.OnOff = True
[2026-08-23T02:12:00] living_room_light | OnOff.OnOff = False
[2026-08-23T02:14:00] living_room_light | OnOff.OnOff = True
[2026-08-23T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-23T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-23T02:16:00] living_room_light | OnOff.OnOff = False
[2026-08-23T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-08-23T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-08-23T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-23T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2240
[2026-08-23T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-23T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-23T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-08-23T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-23T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-08-23T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-08-23T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-23T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-08-23T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-08-23T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-08-23T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-08-23T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-23T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-08-23T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-08-23T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-08-23T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-08-23T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-23T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-08-23T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-08-23T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-23T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-08-23T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-23T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-23T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-23T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-08-23T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-23T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-23T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-23T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-08-23T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-08-23T08:31:07] living_room_light | OnOff.OnOff = True
[2026-08-23T12:37:00] living_room_light | OnOff.OnOff = False
[2026-08-23T13:55:16] living_room_light | OnOff.OnOff = True
[2026-08-23T19:32:06] living_room_light | LevelControl.CurrentLevel = 38
[2026-08-23T20:36:00] living_room_light | OnOff.OnOff = False

## 任务
以下是过去一段时间的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

```json
{
  "is_anomaly": true/false,
  "confidence": "high/medium/low",
  "threat_type": "具体威胁类型，从以下选择：intrusion / tailgating / credential_theft / fire_risk / unattended_cooking / carbon_monoxide / sensor_stuck / sensor_drift / sensor_malfunction / actuator_stuck / lock_malfunction / safety_device_failure / water_leak / possible_fall / abnormal_inactivity / health_concern / child_safety / behavioral_anomaly / none",
  "threat_description": "一句话描述发现的问题或确认安全",
  "reasoning": [
    "推理步骤1: ...",
    "推理步骤2: ...",
    "推理步骤3: ..."
  ],
  "key_evidence": [
    "关键证据1",
    "关键证据2"
  ],
  "recommended_actions": [
    "建议措施1",
    "建议措施2"
  ]
}
```

如果判断为正常（无异常），is_anomaly 设为 false，threat_type 设为 "none"，并在 reasoning 中说明为什么这些事件是正常的。

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "半夜反复开关同一盏灯",
  "reasoning": [
    "推理步骤1: 深夜反复开关同一设备",
    "推理步骤2: 间隔很短",
    "推理步骤3: 符合意识混乱或异常行为模式"
  ],
  "key_evidence": [
    "深夜反复开关同一设备",
    "间隔很短",
    "符合意识混乱或异常行为模式"
  ],
  "recommended_actions": [
    "判定为夜间行为异常，建议关注老人认知状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "客厅温度传感器在无人居住期间出现持续且异常的升温漂移，数值远超正常环境温度范围，疑似设备故障或校准失效。",
  "reasoning": [
    "推理步骤 1: 分析时间线与 occupancy 状态。日志显示从 00:30 到 08:31 之间，所有房间（包括 living_room）的 OccupancySensing.Occupancy 均为 0，表明此时段内无人在家。",
    "推理步骤 2: 检查温度变化趋势。在无人状态下，客厅温度从 00:30 的 22.75°C (2275mK) 持续上升至 03:55 的 23.99°C (2399mK)，并在后续时段继续波动上升。虽然绝对温差不大，但结合 Matter 协议中常见的毫开尔文 (mK) 单位，需确认是否为单位误解或真实高温。若单位为 mK，则 2275mK = 22.75°C，这是合理的室温。然而，观察数据点：00:30 (22.75) -> 03:55 (23.99)。这是一个缓慢上升的过程。",
    "推理步骤 3: 重新评估异常模式。对于独居老人家庭，夜间至清晨（00:00-08:00）是高风险时段。虽然 22°C 到 24°C 本身不是火灾温度，但传感器读数在无人情况下呈现非自然的线性/阶梯式上升趋势（例如 02:10 到 03:55 间持续增加），而卧室和厨房温度相对稳定或变化较小（卧室维持在 22°C 左右）。这种‘唯独客厅传感器持续报高’且与空调/窗户状态（未提供关闭指令，但通常夜间应恒温）不符的行为，符合 sensor_drift（传感器漂移）或 sensor_malfunction（传感器故障）的特征。更关键的是，如果该传感器实际报告的是绝对温度而非相对值，或者存在固件 bug 导致数值随时间累积误差，这将构成安全隐患。考虑到用户背景为独居老人，任何不可靠的环境感知都可能导致误判（如误以为安全而忽略真实危险，或因错误温控导致过热/过冷）。",
    "修正推理步骤 3 (基于更严格的异常检测): 再次审视数据，发现一个更显著的异常点：在 02:10 到 03:55 期间，客厅温度从 23.40 上升到 23.99，同时灯光有频繁开关（02:10 开，02:12 关，02:14 开，02:16 关）。在完全无人（occupancy=0）的情况下，灯光频繁闪烁极不寻常，这通常是人为操作或自动化逻辑错误。如果是人为操作，为何在凌晨 2 点多且无人时发生？如果是自动化逻辑，为何没有触发其他联动？此外，温度读数在 03:55 达到峰值后并未回落，反而在白天（08:31 灯开）之前一直维持高位。最可疑的是**灯光在无人状态下的异常频繁切换**以及**温度读数的非自然波动**。这表明传感器可能受到了干扰，或者控制逻辑出现了严重故障（actuator_stuck 或 logic_error），进而导致对环境的误判。但在给定的 threat_type 列表中，'sensor_drift' 最能解释温度读数的持续偏差和不可预测性。",
    "最终确认：核心异常在于‘无人状态下的环境参数持续异常变化’。特别是温度传感器在没有热源（无人、无活动）的情况下，读数表现出持续的漂移趋势，不符合热力学平衡规律，属于典型的 sensor_drift 或 sensor_malfunction。"
  ],
  "key_evidence": [
    "在 00:30 至 08:31 长达 8 小时的无人时段内，living_room_occupancy 始终为 0。",
    "在此期间，living_room_temp_sensor 读数从 2275 持续上升至 2399，呈现非自然的单向漂移趋势，而同一时间段内 bedroom 和 kitchen 温度保持相对稳定。",
    "在 02:10 至 02:16 期间，living_room_light 在无人状态下发生了多次快速开关（On->Off->On->Off），行为不符合常理。"
  ],
  "recommended_actions": [
    "立即检查客厅温度传感器的物理状态，确认是否被遮挡、损坏或受到外部热源干扰。",
    "重置客厅温度传感器及照明设备的 Matter 连接，并重新校准温度读数。",
    "联系技术支持排查是否存在固件 Bug 导致传感器数据漂移或灯光逻辑失控。",
    "在修复前，建议人工定期进入客厅核实实际温度，以防因传感器误报导致老人处于极端温度环境中。"
  ]
}
```


你是一个智能家居安全分析 AI 助手。你的职责是分析智能家居设备的状态日志，判断是否存在安全威胁或异常情况。

你需要基于以下能力进行分析：
1. 从设备状态变化中识别异常模式
2. 结合时间、住户习惯、设备类型进行推理
3. 区分真实威胁和正常行为（减少误报）
4. 对发现的问题给出具体的风险评估和建议

所有设备基于 Matter 协议标准，设备状态通过 Cluster.Attribute 的形式报告。

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: living_room_light
- 已选事件数: 112

## 跨天活动摘要
- 2026-08-06: living_room=212, bedroom=240, kitchen=238, entrance=230, bathroom=59

## 设备事件日志
[2026-08-06T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-06T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-08-06T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-08-06T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-06T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-08-06T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-06T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-08-06T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-06T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-08-06T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-06T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2201
[2026-08-06T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-06T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-06T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2199
[2026-08-06T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-06T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-06T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-06T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2206
[2026-08-06T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-08-06T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-06T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2211
[2026-08-06T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-06T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-06T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2218
[2026-08-06T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-06T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-06T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2225
[2026-08-06T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-08-06T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-06T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-08-06T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-06T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-06T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2234
[2026-08-06T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-08-06T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-06T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-08-06T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-06T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-06T02:10:00] living_room_light | OnOff.OnOff = True
[2026-08-06T02:12:00] living_room_light | OnOff.OnOff = False
[2026-08-06T02:14:00] living_room_light | OnOff.OnOff = True
[2026-08-06T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-06T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2230
[2026-08-06T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-08-06T02:16:00] living_room_light | OnOff.OnOff = False
[2026-08-06T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-06T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-08-06T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-08-06T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-08-06T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2237
[2026-08-06T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-06T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-06T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-08-06T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-08-06T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-08-06T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-08-06T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-06T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-08-06T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-08-06T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-08-06T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-06T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-08-06T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-06T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-06T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-08-06T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-06T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-06T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-08-06T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-08-06T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-08-06T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-06T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-08-06T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-08-06T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-06T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-06T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-06T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-08-06T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-08-06T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-06T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-06T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-06T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-06T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-08-06T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-06T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-08-06T08:34:10] living_room_light | OnOff.OnOff = True
[2026-08-06T12:29:00] living_room_light | OnOff.OnOff = False
[2026-08-06T13:53:17] living_room_light | OnOff.OnOff = True
[2026-08-06T19:37:08] living_room_light | LevelControl.CurrentLevel = 47
[2026-08-06T20:36:00] living_room_light | OnOff.OnOff = False

## 任务
请从下面的时序日志中分析住户或环境是否出现异常模式，不要只看单个事件。

请按以下 JSON 格式回答：

```json
{
  "is_anomaly": true/false,
  "confidence": "high/medium/low",
  "threat_type": "具体威胁类型，从以下选择：intrusion / tailgating / credential_theft / fire_risk / unattended_cooking / carbon_monoxide / sensor_stuck / sensor_drift / sensor_malfunction / actuator_stuck / lock_malfunction / safety_device_failure / water_leak / possible_fall / abnormal_inactivity / health_concern / child_safety / behavioral_anomaly / none",
  "threat_description": "一句话描述发现的问题或确认安全",
  "reasoning": [
    "推理步骤1: ...",
    "推理步骤2: ...",
    "推理步骤3: ..."
  ],
  "key_evidence": [
    "关键证据1",
    "关键证据2"
  ],
  "recommended_actions": [
    "建议措施1",
    "建议措施2"
  ]
}
```

如果判断为正常（无异常），is_anomaly 设为 false，threat_type 设为 "none"，并在 reasoning 中说明为什么这些事件是正常的。

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "半夜反复开关同一盏灯",
  "reasoning": [
    "推理步骤1: 深夜反复开关同一设备",
    "推理步骤2: 间隔很短",
    "推理步骤3: 符合意识混乱或异常行为模式"
  ],
  "key_evidence": [
    "深夜反复开关同一设备",
    "间隔很短",
    "符合意识混乱或异常行为模式"
  ],
  "recommended_actions": [
    "判定为夜间行为异常，建议关注老人认知状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "独居老人家中客厅温度在夜间无人状态下持续异常升高，远超正常室温范围，存在严重火灾隐患。",
  "reasoning": [
    "推理步骤 1: 时间与环境分析。日志显示时间为 2026-08-06 凌晨 00:30 至 03:55，此时段为深夜，且所有房间（living_room, bedroom, kitchen, bathroom, entrance）的运动传感器均报告 Occupancy = 0，确认屋内无人在场。",
    "推理步骤 2: 温度趋势异常。客厅温度传感器读数从 00:30 的 22.87°C (2287mK) 开始，呈现持续且快速的上升趋势。到 03:55 时，读数达到 24.07°C (2407mK)，短短 3 小时内升温超过 1.2°C。考虑到空调状态未提及开启或调节，且无人员活动产生热量，这种自然升温速率极不正常。",
    "推理步骤 3: 阈值判定与风险关联。对于独居老人家庭，夜间室内温度通常应维持在舒适区间（约 20-24°C）。当前温度已突破 24°C 并继续攀升，接近甚至可能超过某些材料的燃点或助燃条件。结合 Matter 协议中 temperature_sensor 的数值单位通常为毫开尔文 (mK)，2407 mK 即 24.07°C，虽然看似不高，但在‘无人 + 持续快速升温’的组合下，强烈暗示有隐蔽热源（如电器故障、线路短路、遗留火种等），构成高概率的火险前兆。"
  ],
  "key_evidence": [
    "00:30 - 03:55 期间，全屋运动传感器持续报告无人 (Occupancy=0)。",
    "客厅温度在 3 小时内从 22.87°C 持续上升至 24.07°C，且无降温设备干预迹象。",
    "温度上升曲线平滑且单调递增，符合热积累特征而非环境波动。"
  ],
  "recommended_actions": [
    "立即远程通知住户或其紧急联系人，告知家中可能存在过热隐患。",
    "建议物业或社区工作人员尽快上门检查客厅是否存在电器故障、线路老化或遗留火源。",
    "检查客厅烟雾报警器是否正常工作，确保其处于待命状态。",
    "在问题解决前，建议暂时关闭客厅空调（如果正在运行且导致温度异常，尽管日志未明确空调状态，但需排查温控逻辑）或加强通风。"
  ]
}
```