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: 两室一厅 (2BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[onoff_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]
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 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 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_sensor]

## 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: SQ4
- 重点房间: living_room
- 重点设备: front_door_contact, living_room_light_1, master_bedroom_occupancy
- 已选事件数: 109

## 跨天活动摘要
- 2026-08-03: living_room=113, entrance=231, master_bedroom=230, second_bedroom=48, bathroom=48, kitchen=11

## 设备事件日志
[2026-08-03T00:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T07:22:31] front_door_contact | BooleanState.StateValue = False
[2026-08-03T07:22:31] front_door_contact | BooleanState.StateValue = True
[2026-08-03T08:19:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T11:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T14:29:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T16:05:02] front_door_contact | BooleanState.StateValue = False
[2026-08-03T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-08-03T16:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T16:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-03T16:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-03T16:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-03T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-03T16:44:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-08-03T16:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-08-03T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-03T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-08-03T17:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T17:04:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-03T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-03T17:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-03T17:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-03T17:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-03T17:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T17:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-03T17:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-03T17:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-03T17:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-03T17:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-03T17:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-08-03T17:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-08-03T17:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-08-03T17:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T17:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T17:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-08-03T17:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-03T17:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-03T17:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-03T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-03T17:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-03T17:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-03T17:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-03T17:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T17:44:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T17:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-03T17:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-08-03T17:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-08-03T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-03T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-08-03T17:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-03T17:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-08-03T17:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-03T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-08-03T17:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-08-03T17:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-03T17:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-03T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-03T18:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-03T18:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-08-03T18:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-03T18:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T18:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T18:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T18:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T18:04:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-08-03T18:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-03T18:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-08-03T18:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-03T18:07:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-03T18:07:00] front_door_lock | DoorLock.LockState = 2
[2026-08-03T18:07:02] front_door_contact | BooleanState.StateValue = False
[2026-08-03T18:07:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T18:07:07] living_room_light_1 | OnOff.OnOff = True
[2026-08-03T18:07:15] living_room_ac | OnOff.OnOff = True
[2026-08-03T18:07:15] living_room_ac | Thermostat.SystemMode = 3
[2026-08-03T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-08-03T18:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-03T18:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-03T18:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-08-03T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-03T18:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-03T18:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-03T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-03T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-03T18:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-08-03T18:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-03T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-03T18:20:00] front_door_contact | BooleanState.StateValue = False
[2026-08-03T18:21:00] living_room_light_1 | OnOff.OnOff = True
[2026-08-03T18:22:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T18:22:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T18:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-03T18:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-08-03T18:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-03T18:27:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-03T18:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-03T18:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-03T18:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T18:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-03T18:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

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": "回家后跳过常规过渡行为直接进卧室",
  "reasoning": [
    "推理步骤1: 入户后缺少常见过渡动作",
    "推理步骤2: 直接切到卧室活动",
    "推理步骤3: 偏离既往居家路径"
  ],
  "key_evidence": [
    "入户后缺少常见过渡动作",
    "直接切到卧室活动",
    "偏离既往居家路径"
  ],
  "recommended_actions": [
    "判定为行为模式异常，建议结合其他迹象评估状态。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示正常的家庭晚间活动模式，包括住户回家、开启灯光空调及门锁操作，未发现安全威胁。",
  "reasoning": [
    "时间线分析：日志始于凌晨（00:00）主卧无人，随后在早晨（07:22）入户门传感器检测到开门/关门动作，符合正常起床或外出归家逻辑。",
    "行为一致性：下午至傍晚期间，虽然客厅和次卧运动传感器多次报告为'0'（无人），但温度传感器持续上报数据且数值稳定（约 23°C），表明设备在线且环境正常，非死机或离线。",
    "关键事件验证：18:07 分发生了一系列连贯的‘回家’事件：入户门锁被手动上锁（LockOperation=1），紧接着入户门接触传感器变为 False（门开），随后客厅灯、空调开启，最后客厅运动传感器变为 1（有人）。这一序列完全符合住户下班回家并进入客厅的正常行为模式。",
    "无异常指标：未检测到烟雾报警、漏水、非法入侵（如门开后长时间无人）、设备状态突变或传感器数据漂移等异常特征。"
  ],
  "key_evidence": [
    "2026-08-03T18:07:00 front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)",
    "2026-08-03T18:07:02 living_room_occupancy | OccupancySensing.Occupancy = 1 (紧随门锁操作后)",
    "2026-08-03T18:07:07 living_room_light_1 | OnOff.OnOff = True (自动或手动开启照明)"
  ],
  "recommended_actions": [
    "无需采取紧急措施，系统运行正常。",
    "建议继续保持当前的设备监控策略，定期校准温度传感器以确保读数准确。"
  ]
}
```


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: 两室一厅 (2BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[onoff_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]
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 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 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_sensor]

## 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: SQ4
- 重点房间: living_room
- 重点设备: front_door_contact, living_room_light_1, master_bedroom_occupancy
- 已选事件数: 119

## 跨天活动摘要
- 2026-07-07: living_room=109, entrance=232, bathroom=57, master_bedroom=49, second_bedroom=48, kitchen=8

## 设备事件日志
[2026-07-07T00:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T04:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T07:20:28] front_door_contact | BooleanState.StateValue = False
[2026-07-07T07:20:31] front_door_contact | BooleanState.StateValue = True
[2026-07-07T08:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T12:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T16:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-07T16:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-07T16:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-07T16:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T16:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-07T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-07T16:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-07T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-07T17:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T17:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-07T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-07T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-07T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-07T17:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-07T17:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-07T17:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-07-07T17:20:29] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-07T17:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-07T17:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-07T17:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-07-07T17:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-07T17:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-07T17:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T17:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T17:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-07T17:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-07T17:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-07T17:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-07T17:37:53] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-07T17:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-07T17:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-07T17:40:29] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-07-07T17:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-07T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-07T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-07T17:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-07T17:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-07T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-07T17:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-07T17:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-07T17:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-07T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-07-07T18:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-07T18:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-07T18:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-07T18:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T18:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T18:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T18:00:29] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-07T18:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-07T18:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-07T18:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2462
[2026-07-07T18:07:53] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-07T18:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-07T18:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-07T18:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-07T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-07T18:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-07T18:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-07T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2586
[2026-07-07T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-07T18:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-07-07T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2646
[2026-07-07T18:20:00] front_door_contact | BooleanState.StateValue = False
[2026-07-07T18:20:29] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:21:00] living_room_light_1 | OnOff.OnOff = True
[2026-07-07T18:22:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-07T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2699
[2026-07-07T18:27:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-07T18:27:00] front_door_lock | DoorLock.LockState = 2
[2026-07-07T18:27:02] front_door_contact | BooleanState.StateValue = False
[2026-07-07T18:27:09] entrance_light | OnOff.OnOff = True
[2026-07-07T18:27:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:27:18] living_room_light_1 | OnOff.OnOff = True
[2026-07-07T18:27:23] living_room_ac | OnOff.OnOff = True
[2026-07-07T18:27:23] living_room_ac | Thermostat.SystemMode = 3
[2026-07-07T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-07T18:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-07T18:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-07T18:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2716
[2026-07-07T18:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T18:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T18:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-07T18:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-07T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2706
[2026-07-07T18:37:53] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T18:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-07T18:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-07T18:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-07T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2714
[2026-07-07T18:42:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-07T18:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-07T18:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-07T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2666
[2026-07-07T18:47:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-07T18:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-07T18:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-07T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2621
[2026-07-07T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-07T18:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-07T18:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

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": "回家后跳过常规过渡行为直接进卧室",
  "reasoning": [
    "推理步骤1: 入户后缺少常见过渡动作",
    "推理步骤2: 直接切到卧室活动",
    "推理步骤3: 偏离既往居家路径"
  ],
  "key_evidence": [
    "入户后缺少常见过渡动作",
    "直接切到卧室活动",
    "偏离既往居家路径"
  ],
  "recommended_actions": [
    "判定为行为模式异常，建议结合其他迹象评估状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器数据严重异常，数值高达 2700+ (应为 23-25°C)，且与其他房间正常读数形成巨大反差，极可能是传感器故障或校准错误导致误报高温。",
  "reasoning": [
    "推理步骤 1: 对比分析发现，从 18:00 开始，客厅、主卧、次卧的温度传感器读数均在 2300-2400 范围（即 23-24°C），符合夏季室内正常室温逻辑。",
    "推理步骤 2: 与此同时，厨房温度传感器读数在 18:00 后急剧攀升至 2600-2700+ (即 26-27°C)，并在 18:25 达到峰值 2699。虽然数值看似只是略高，但考虑到其他房间同时段无升温迹象，且该数值随时间持续非理性增长，不符合物理规律。",
    "推理步骤 3: 结合入户门开启和人员进入的日志，若真实发生火情或高温，通常会有烟雾报警器触发或人员迅速撤离反应，但日志中未见相关联动报警，且随后人员仍在屋内活动并开启空调，进一步佐证了温度读数不可信。",
    "推理步骤 4: 这种单一设备在特定时间段内出现远超环境常态且与其他关联设备（如相邻房间）数据完全背离的现象，是典型的传感器漂移或硬件故障特征，而非真实的热事件。"
  ],
  "key_evidence": [
    "2026-07-07T18:00:00 至 18:55:00 期间，厨房温度传感器读数从 2381 飙升至 2714，而其他所有房间温度稳定在 2290-2320 之间。",
    "在厨房显示“高温”期间，系统未触发烟雾报警器，且住户正常进出并开启了客厅空调，行为与真实火灾/高温场景不符。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的物理状态，确认是否被遮挡、损坏或电池接触不良。",
    "重置厨房温度传感器或将其暂时从自动化规则中移除，防止基于错误数据触发错误的警报或执行错误的制冷指令。",
    "建议联系设备制造商进行固件更新或硬件更换，以消除潜在的数据漂移风险。"
  ]
}
```


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: 79

## 跨天活动摘要
- 2026-07-31: living_room=214, bedroom=242, kitchen=239, entrance=230, bathroom=62

## 设备事件日志
[2026-07-31T08:35:12] living_room_light | OnOff.OnOff = True
[2026-07-31T12:35:00] living_room_light | OnOff.OnOff = False
[2026-07-31T14:05:28] living_room_light | OnOff.OnOff = True
[2026-07-31T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-31T17:20:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-31T17:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-31T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-31T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-31T17:40:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T17:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-31T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-31T18:00:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-31T18:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2211
[2026-07-31T18:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-31T18:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-31T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-31T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-31T18:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-07-31T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-31T18:20:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2221
[2026-07-31T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-31T18:29:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-31T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2199
[2026-07-31T18:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-31T18:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-31T18:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-07-31T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-31T18:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-31T18:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2208
[2026-07-31T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-31T18:40:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-31T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-31T18:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-31T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2190
[2026-07-31T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-31T18:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T18:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2198
[2026-07-31T18:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-31T18:59:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-31T19:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2200
[2026-07-31T19:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-31T19:00:00] living_room_light | OnOff.OnOff = True
[2026-07-31T19:00:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T19:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-31T19:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2185
[2026-07-31T19:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-31T19:05:00] living_room_light | OnOff.OnOff = False
[2026-07-31T19:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-31T19:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2189
[2026-07-31T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-31T19:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T19:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T19:10:00] living_room_light | OnOff.OnOff = True
[2026-07-31T19:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T19:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-31T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2186
[2026-07-31T19:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-31T19:15:00] living_room_light | OnOff.OnOff = False
[2026-07-31T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-07-31T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2179
[2026-07-31T19:20:00] living_room_light | OnOff.OnOff = True
[2026-07-31T19:20:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T19:22:04] living_room_light | LevelControl.CurrentLevel = 47
[2026-07-31T19:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-31T19:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2193

## 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": "设备使用频率突然翻倍",
  "reasoning": [
    "推理步骤1: 同一设备短时间高频重复使用",
    "推理步骤2: 频率显著高于普通居家行为",
    "推理步骤3: 更像异常强迫式操作"
  ],
  "key_evidence": [
    "同一设备短时间高频重复使用",
    "频率显著高于普通居家行为",
    "更像异常强迫式操作"
  ],
  "recommended_actions": [
    "标记为异常设备交互模式，建议持续观察。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人正常的晚间居家活动模式，无安全威胁或异常行为。",
  "reasoning": [
    "时间线分析：事件发生在 17:20 至 19:25 之间，符合独居老人的正常晚间作息（晚餐、休息准备）。",
    " occupancy 模式验证：客厅 (living_room)、卧室 (bedroom) 和厨房 (kitchen) 的运动传感器持续报告有人 (Occupancy=1)，且入户门玄关 (entrance) 也有间歇性活动记录，表明住户一直在室内正常移动，不存在长时间无人看管的情况。",
    "设备状态一致性：灯光开关操作 (OnOff.OnOff) 与运动检测同步，例如 19:00 开灯后不久检测到有人，19:05 关灯时可能处于短暂静止或离开特定区域，随后 19:10 再次开灯，这种频繁的明暗切换在老人起夜或整理物品时非常常见，属于正常行为而非故障。",
    "环境数据合理性：温度传感器读数（如客厅 23.4°C -> 22.8°C）随空调运行和时间推移呈现合理的下降趋势，数值在舒适范围内，未出现传感器漂移或故障导致的极端值；所有传感器数据相互印证，逻辑自洽。"
  ],
  "key_evidence": [
    "多房间 (Living Room, Bedroom, Kitchen) 运动传感器在长时段内持续报告 Occupancy=1，证明住户在场。",
    "灯光控制序列 (19:00 ON -> 19:05 OFF -> 19:10 ON) 与人体活动轨迹吻合，反映正常的室内走动行为。",
    "温度数据随时间自然变化，无突变或异常高/低值，排除设备故障。"
  ],
  "recommended_actions": [
    "无需采取紧急措施，系统运行正常。",
    "建议继续保持对独居老人居住环境的常规监控频率。"
  ]
}
```


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: 一室一厅 (Studio/1BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅台灯[onoff_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]
- 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], 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]
- 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]

## 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: SQ4
- 重点房间: living_room
- 重点设备: front_door_contact, kitchen_light, living_room_light_1
- 已选事件数: 121

## 跨天活动摘要
- 2026-08-07: living_room=110, bedroom=65, bathroom=56, entrance=15, kitchen=9

## 设备事件日志
[2026-08-07T06:52:09] kitchen_light | OnOff.OnOff = True
[2026-08-07T07:38:00] kitchen_light | OnOff.OnOff = False
[2026-08-07T07:38:15] front_door_contact | BooleanState.StateValue = False
[2026-08-07T07:38:19] front_door_contact | BooleanState.StateValue = True
[2026-08-07T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-07T16:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-07T16:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-07T16:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-08-07T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-08-07T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-08-07T16:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-07T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-07T17:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-07T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-07T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-07T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-07T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-08-07T17:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-08-07T17:23:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-08-07T17:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-08-07T17:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-07T17:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-07T17:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-08-07T17:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-07T17:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T17:34:44] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T17:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-07T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-07T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-08-07T17:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-08-07T17:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-08-07T17:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-08-07T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-07T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-08-07T17:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-08-07T17:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-07T17:53:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-07T17:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2234
[2026-08-07T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2230
[2026-08-07T18:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-08-07T18:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T18:04:44] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-07T18:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-08-07T18:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-07T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-07T18:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-08-07T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-07T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-08-07T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-08-07T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-08-07T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-07T18:20:00] front_door_contact | BooleanState.StateValue = False
[2026-08-07T18:21:00] living_room_light_1 | OnOff.OnOff = True
[2026-08-07T18:23:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T18:24:00] kitchen_light | OnOff.OnOff = True
[2026-08-07T18:25:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-07T18:25:00] front_door_lock | DoorLock.LockState = 2
[2026-08-07T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-07T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-07T18:25:02] front_door_contact | BooleanState.StateValue = False
[2026-08-07T18:25:07] entrance_light | OnOff.OnOff = True
[2026-08-07T18:25:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T18:25:20] living_room_light_1 | OnOff.OnOff = True
[2026-08-07T18:25:28] living_room_ac | OnOff.OnOff = True
[2026-08-07T18:25:28] living_room_ac | Thermostat.SystemMode = 3
[2026-08-07T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-07T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-08-07T18:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-07T18:34:44] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-07T18:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2199
[2026-08-07T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-08-07T18:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-07T18:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2195
[2026-08-07T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-07T18:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2198
[2026-08-07T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-07T18:45:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T18:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-07T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2204
[2026-08-07T18:53:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-07T18:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-08-07T18:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-08-07T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-08-07T19:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2200
[2026-08-07T19:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-07T19:02:00] kitchen_light | OnOff.OnOff = True
[2026-08-07T19:02:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-07T19:03:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-07T19:04:44] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T19:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-07T19:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2193
[2026-08-07T19:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-07T19:05:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T19:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-07T19:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2180
[2026-08-07T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-08-07T19:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-07T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2189
[2026-08-07T19:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-07T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-08-07T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2182
[2026-08-07T19:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2621
[2026-08-07T19:23:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T19:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-08-07T19:25:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T19:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-08-07T19:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-08-07T19:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-08-07T19:45:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T19:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-08-07T19:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2270
[2026-08-07T20:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2265
[2026-08-07T20:06:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T20:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

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": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本回家后有客厅/厨房过渡活动；异常样本直接进入卧室。"
  ],
  "key_evidence": [
    "正常样本回家后有客厅/厨房过渡活动；异常样本直接进入卧室。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器数据严重异常，读数高达 2300+ (应为 23-24°C)，且与厨房、卧室传感器读数不一致，表明传感器故障或校准错误。",
  "reasoning": [
    "推理步骤 1: 分析温度数据范围。日志中 living_room_temp_sensor 的读数从 2384 开始，随后在 19:00 后飙升至 2621。正常的室温应在 20-30°C 之间（即 2000-3000 的十分之一单位），这些数值明显超出了物理可能范围，属于典型的传感器漂移或故障。",
    "推理步骤 2: 进行跨设备交叉验证。在同一时间段（如 17:20 - 19:20），bedroom_temp_sensor 和 kitchen_temp_sensor 的读数均在 2100-2600 之间波动，符合正常室温变化规律（例如 22.4°C -> 26.2°C）。唯独 living_room_temp_sensor 的数值异常偏高且趋势混乱，排除了全屋过热导致空调失效的可能性。",
    "推理步骤 3: 评估潜在风险。虽然该传感器读数异常可能导致温控系统误判（例如在极热时关闭空调，或在极冷时开启制冷），但目前并未直接触发火灾报警或造成人员伤害。然而，依赖此错误数据进行自动化决策存在安全隐患，必须视为设备故障处理。"
  ],
  "key_evidence": [
    "living_room_temp_sensor 读数在 16:20 至 19:20 期间持续显示 2300 以上（如 2621），远超正常室温上限。",
    "同期 bedroom_temp_sensor 和 kitchen_temp_sensor 读数合理（约 2200-2600），证明环境本身未发生极端高温，确认为单一传感器故障。",
    "温度读数随时间呈现无规律的剧烈跳变（如 19:15 的 2556 到 19:20 的 2621），不符合热力学自然变化曲线。"
  ],
  "recommended_actions": [
    "立即标记 living_room_temp_sensor 为‘故障’状态，并在智能家居系统中暂时禁用其作为温控逻辑的数据源。",
    "通知用户检查并更换客厅温度传感器，或联系技术支持进行固件校准/硬件维修。",
    "建议用户在修复前手动监控客厅实际温度，避免自动空调系统因错误数据做出危险操作（如过度制冷或制热）。"
  ]
}
```


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: 90

## 跨天活动摘要
- 2026-07-07: living_room=213, bedroom=241, kitchen=238, entrance=231, bathroom=60

## 设备事件日志
[2026-07-07T08:21:13] living_room_light | OnOff.OnOff = True
[2026-07-07T14:06:18] living_room_light | OnOff.OnOff = True
[2026-07-07T17:21:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:41:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:01:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2225
[2026-07-07T18:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-07T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-07T18:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-07T18:21:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-07T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-07T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-07-07T18:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-07T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-07-07T18:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-07T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-07T18:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2196
[2026-07-07T18:46:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-07T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-07T18:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2199
[2026-07-07T18:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-07T19:00:00] living_room_light | OnOff.OnOff = True
[2026-07-07T19:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2184
[2026-07-07T19:06:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:09:04] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T19:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-07T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2196
[2026-07-07T19:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-07T19:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-07-07T19:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2188
[2026-07-07T19:34:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-07T19:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-07T19:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-07T19:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2183
[2026-07-07T19:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2270
[2026-07-07T19:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-07T20:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-07-07T20:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2265
[2026-07-07T20:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-07-07T20:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-07T20:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-07T20:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-07T20:39:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T20:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2161
[2026-07-07T20:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T20:43:09] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T20:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T20:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2151
[2026-07-07T20:46:00] bathroom_light | OnOff.OnOff = False
[2026-07-07T20:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T20:46:14] front_door_contact | BooleanState.StateValue = True
[2026-07-07T20:46:15] front_door_lock | DoorLock.LockState = 1
[2026-07-07T20:46:22] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-07T20:47:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T20:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2158
[2026-07-07T20:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-07T20:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-07-07T21:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2166
[2026-07-07T21:04:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T21:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-07T21:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-07-07T21:06:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T21:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T21:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2144
[2026-07-07T21:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T21:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-07-07T21:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-07T21:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-07-07T21:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2145
[2026-07-07T21:29:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T21:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2246
[2026-07-07T21:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-07-07T21:30:00] 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。

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "未检测到安全威胁或异常情况，日志显示为独居老人的正常晚间居家活动。",
  "reasoning": [
    "1. 活动模式分析：日志时间集中在 17:21 至 21:30，符合老年人傍晚在客厅休息、看电视或活动的典型作息。客厅运动传感器（Occupancy）多次触发且持续存在，表明住户长时间停留在客厅，行为连贯。",
    "2. 设备状态逻辑自洽：19:00 客厅灯开启，21:30 关闭，与住户在客厅的活动时间段吻合。卧室温度传感器读数随时间缓慢下降（从 ~22.2°C 降至 ~21.4°C），这是夜间环境温度自然降低的正常物理现象，非传感器故障。",
    "3. 安全事件排查：入户门传感器和门锁仅在 20:46 有短暂记录（可能是住户回家后的自动落锁或传感器上报），随后无异常反复开关记录。厨房灶具、烟雾报警器、漏水传感器均无报警或异常触发。卫生间和浴室的短暂占用（20:43-20:47）属于正常的如厕或洗漱行为。",
    "4. 排除误报：虽然涉及多个房间的运动传感器，但各区域活动有时间先后顺序（如先客厅，后厨房/玄关，再卧室/浴室），符合人在家中移动的逻辑，不存在同时段多房间冲突或静止不动导致的跌倒风险（客厅持续有人）。"
  ],
  "key_evidence": [
    "living_room_occupancy 在 17:21-21:29 期间持续报告 Occupancy=1，证明住户在客厅长时间停留。",
    "living_room_light 在 19:00 开启，21:30 关闭，与人员活动高度同步。",
    "bedroom_temp_sensor 数值呈线性缓慢下降趋势（2225 -> 2144），符合夜间降温规律，无突变或卡死迹象。",
    "厨房 cook_surface 和 smoke_co_alarm 无任何异常触发记录。"
  ],
  "recommended_actions": [
    "无需采取紧急措施。",
    "建议继续监控日常活动基线，若发现客厅长时间无运动信号（超过平时习惯时长）则需进一步核查。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "intrusion",
  "threat_description": "这些变化表明存在安全异常。",
  "reasoning": [
    "推理步骤1: 我把本可由正常模式解释的事件误判成了异常。"
  ],
  "key_evidence": [
    "正常样本只是晚间一次开关灯；异常样本短时间内重复高频操作。"
  ],
  "recommended_actions": [
    "建议立即检查并触发安全响应。"
  ]
}


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: 两室一厅 (2BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[onoff_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]
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 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 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_sensor]

## 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: SQ4
- 重点房间: living_room
- 重点设备: kitchen_light, living_room_occupancy
- 已选事件数: 136

## 跨天活动摘要
- 2026-07-20: living_room=112, entrance=230, bathroom=57, master_bedroom=48, second_bedroom=48, kitchen=8
- 2026-07-21: living_room=110, entrance=230, bathroom=53, master_bedroom=48, second_bedroom=48, kitchen=9
- 2026-07-22: living_room=111, entrance=232, bathroom=55, master_bedroom=48, second_bedroom=48, kitchen=9

## 设备事件日志
[2026-07-20T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-20T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-20T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T06:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-20T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-20T07:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-20T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-20T07:08:02] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-20T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-20T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-20T07:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-20T07:24:18] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:24:27] front_door_contact | BooleanState.StateValue = False
[2026-07-20T07:24:31] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-07-20T07:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-20T07:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-20T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-20T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-20T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-20T07:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-20T07:49:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-20T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-20T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-20T08:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-20T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-20T08:09:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-20T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-20T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-20T08:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-20T08:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-20T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-20T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-20T08:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T08:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-20T08:38:24] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T08:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-20T08:44:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-20T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-20T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-20T08:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-20T09:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-20T09:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-20T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-20T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-20T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-20T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T23:53:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-21T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-21T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-21T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-21T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T11:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-21T11:10:24] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-21T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-21T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-21T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-21T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-21T11:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-21T11:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T11:30:24] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-21T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-21T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-21T11:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-21T11:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-21T11:52:39] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T11:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-21T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-21T12:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-21T12:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T12:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-21T12:05:24] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-21T12:10:00] kitchen_light | OnOff.OnOff = True
[2026-07-21T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-21T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-21T12:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-21T12:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-21T12:25:24] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-21T12:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-21T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-21T12:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-21T12:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-21T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-21T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-21T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-21T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-21T13:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-21T13:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T13:00:24] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T13:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-21T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-21T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-21T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-21T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-07-21T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-21T14:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T18:51:00] kitchen_light | OnOff.OnOff = True
[2026-07-22T06:56:19] kitchen_light | OnOff.OnOff = True
[2026-07-22T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-22T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-22T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-22T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-22T17:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-22T17:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-22T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-22T17:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-22T17:54:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T17:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-22T18:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-22T18:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-22T18:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-22T18:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-22T18:13:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-22T18:13:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T18:13:31] living_room_ac | Thermostat.SystemMode = 3
[2026-07-22T18:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-22T18:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-22T18:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-07-22T18:28:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T18:40:00] kitchen_light | OnOff.OnOff = True

## 任务
请综合以下多个设备与环境状态，评估家庭整体安全状况，指出任何潜在风险。

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": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本仍有零星厨房活动；异常样本连续多天完全缺失相关使用。"
  ],
  "key_evidence": [
    "正常样本仍有零星厨房活动；异常样本连续多天完全缺失相关使用。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "厨房温度传感器在 2026-07-22 18:05:00 出现严重数据漂移，读数从正常的约 23°C 瞬间跳变至 24.59°C (2459 mK)，随后未回落，导致室内温控逻辑可能失效。",
  "reasoning": [
    "推理步骤 1: 分析历史数据趋势，发现 2026-07-22 全天厨房和客厅温度均维持在正常范围（约 23.1°C - 23.6°C），符合夏季傍晚的室温特征。",
    "推理步骤 2: 在 2026-07-22T18:05:00 时刻，厨房温度传感器 (kitchen_temp_sensor) 报告数值为 2459 (即 24.59°C)，而同一时刻主卧、次卧等房间温度仅为 23.16°C - 23.25°C。考虑到厨房通常比卧室略高但绝不可能高出近 1.5°C 且伴随其他区域无升温迹象，该数值极不合理。",
    "推理步骤 3: 对比前后时间点，18:00 时厨房温度为 23.26°C，18:10 时又回到 23.16°C。这种单点剧烈跳变且无法用烹饪活动解释（当时无人操作灶具或洗碗机日志），符合典型的传感器漂移或校准故障特征。若此传感器用于联动空调或烟雾报警阈值判断，可能导致系统误判或控制失灵。"
  ],
  "key_evidence": [
    "2026-07-22T18:05:00 kitchen_temp_sensor 读数异常突增至 2459 (24.59°C)，与周围房间温度 (约 23.2°C) 及前一分钟 (23.26°C)、后一分钟 (23.16°C) 的数据形成巨大反差。",
    "同期入户门锁状态正常 (18:13 手动上锁)，无入侵迹象；厨房灶具和洗碗机无活跃事件，排除热源干扰。"
  ],
  "recommended_actions": [
    "立即检查并重新校准厨房温度传感器，或将其暂时替换为备用传感器以确保环境监控准确性。",
    "审查依赖该传感器的自动化规则（如空调温控、高温预警），防止因数据错误导致设备误动作或安全隐患。",
    "建议联系设备制造商进行固件更新或硬件维修，以解决潜在的传感器漂移问题。"
  ]
}
```


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: 两室一厅 (2BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[onoff_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]
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 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 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_sensor]

## 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: kitchen_light, living_room_occupancy
- 已选事件数: 124

## 跨天活动摘要
- 2026-08-02: living_room=197, bathroom=56, entrance=51, master_bedroom=48, second_bedroom=48, kitchen=14
- 2026-08-03: living_room=111, entrance=232, bathroom=55, master_bedroom=48, second_bedroom=48, kitchen=9
- 2026-08-04: living_room=110, entrance=228, bathroom=54, master_bedroom=48, second_bedroom=48, kitchen=9

## 设备事件日志
[2026-08-02T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-08-02T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-02T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-02T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-08-02T07:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-02T07:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-02T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-02T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-02T07:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-02T07:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-02T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T07:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T07:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-02T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-02T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-02T07:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-02T07:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-02T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-02T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-02T08:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-02T08:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T08:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-02T08:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-02T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-02T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-02T08:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-02T08:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-02T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-02T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-02T08:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-02T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-02T08:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-02T08:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-02T08:49:00] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-02T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-02T09:15:05] kitchen_light | OnOff.OnOff = True
[2026-08-02T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-02T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-02T18:02:00] kitchen_light | OnOff.OnOff = True
[2026-08-03T06:56:19] kitchen_light | OnOff.OnOff = True
[2026-08-03T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-03T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-03T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-03T11:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-03T11:24:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T11:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-03T11:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-03T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-03T11:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-03T11:44:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T11:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-03T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-03T11:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-03T11:56:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T12:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-03T12:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T12:04:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T12:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-03T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-03T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-03T12:10:00] kitchen_light | OnOff.OnOff = True
[2026-08-03T12:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-03T12:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-03T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-03T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-03T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-03T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-03T12:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T12:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-03T12:39:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T12:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-03T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-03T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-03T12:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-03T12:59:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T13:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-03T13:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-03T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-03T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-04T06:45:17] kitchen_light | OnOff.OnOff = True
[2026-08-04T17:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-04T17:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-08-04T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-04T17:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-04T17:50:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T17:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-04T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-04T18:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-08-04T18:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T18:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-08-04T18:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-04T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-04T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2568
[2026-08-04T18:20:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-04T18:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-04T18:20:02] front_door_contact | BooleanState.StateValue = False
[2026-08-04T18:20:19] entrance_light | OnOff.OnOff = True
[2026-08-04T18:20:33] living_room_ac | OnOff.OnOff = True
[2026-08-04T18:25:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T18:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-04T18:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T18:30:23] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T18:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-04T18:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-08-04T18:40:00] kitchen_light | OnOff.OnOff = True
[2026-08-04T18:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-04T18:47:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-04T18:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-04T18:50:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T18:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-08-04T19:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-04T19:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T19:00:23] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T19:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-04T19:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292

## 任务
请从下面 3 天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": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本仍有零星厨房活动；异常样本连续多天完全缺失相关使用。"
  ],
  "key_evidence": [
    "正常样本仍有零星厨房活动；异常样本连续多天完全缺失相关使用。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "厨房温度传感器在 2026-08-04 出现严重数据漂移，读数异常飙升至 2568 (约 23°C) 且与物理环境逻辑不符，疑似传感器故障或校准失效。",
  "reasoning": [
    "推理步骤 1: 分析 2026-08-04 傍晚时段日志，发现 kitchen_temp_sensor 在 18:15 报告温度为 2568 (即 23.68°C)，而在同一时间段内，客厅、主卧和次卧的温度均在 2300-2330 范围 (约 20.7°C - 21.0°C)。",
    "推理步骤 2: 结合上下文，此时住户刚回家并开启空调 (living_room_ac OnOff=True)，室内整体温度正在下降趋势中，厨房作为封闭空间不应比卧室高出近 3 度。此外，该数值 (2568) 远高于其他房间在同一时间点的读数，也高于白天最高温记录，表现出明显的离群特征。",
    "推理步骤 3: 对比历史数据，该传感器在前几天 (08-02, 08-03) 的读数虽然也有波动，但始终与其他房间保持合理的温差关系，未出现如此剧烈的单点异常。这种孤立的、违背热力学常识的读数跳变符合 sensor_drift (传感器漂移/故障) 的特征，而非真实的火灾风险（因为烟雾报警器未触发且无高温持续上升伴随的其他迹象）。"
  ],
  "key_evidence": [
    "2026-08-04T18:15:00 kitchen_temp_sensor 报告 MeasuredValue=2568，而同期 master_bedroom_temp_sensor 为 2310，温差异常巨大。",
    "该异常读数出现在住户正常回家并开启空调降温的过程中，与环境行为逻辑相悖。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的硬件连接及供电情况，排除接触不良导致的误报。",
    "使用独立温度计测量厨房实际温度，验证传感器读数是否准确。",
    "若确认为传感器故障，建议暂时将其从自动化场景（如联动开窗或报警）中移除，并安排维修或更换设备。"
  ]
}
```