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: SQ1
- 重点房间: living_room
- 重点设备: bedroom_temp_sensor, living_room_temp_sensor
- 已选事件数: 134

## 设备事件日志
[2026-08-24T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-08-24T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-24T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-24T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-24T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-24T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-24T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-24T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-24T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-24T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-24T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-24T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-24T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-24T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-24T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-24T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-24T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-24T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-24T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-24T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-24T12:02:44] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-24T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-24T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-24T12:25:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T12:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-24T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-24T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-24T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-24T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-24T13:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-08-24T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-08-24T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-24T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-24T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-24T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-24T13:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-24T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-08-24T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-08-24T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-08-24T14:02:44] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T14:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-08-24T14:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-08-24T14:25:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T14:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-24T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-24T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-24T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-24T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-24T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-24T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-24T15:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-24T15:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-24T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-24T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-24T15:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-08-24T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-24T15:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-08-24T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-24T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-08-24T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-24T16:02:44] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-08-24T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-08-24T16:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-08-24T16:25:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T16:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-24T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-24T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-08-24T16:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-08-24T17:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-24T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-24T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-08-24T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-08-24T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-24T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-24T17:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-08-24T17:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2238
[2026-08-24T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-24T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2230
[2026-08-24T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-24T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-24T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-08-24T18:02:44] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T18:06:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-24T18:06:23] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-24T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-08-24T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-24T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-24T18:26:23] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-24T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-24T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-24T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-24T19:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2188
[2026-08-24T19:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-24T19:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-24T19:14:00] kitchen_light | OnOff.OnOff = True
[2026-08-24T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2178
[2026-08-24T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2187
[2026-08-24T19:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-08-24T19:25:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T19:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2188
[2026-08-24T19:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-08-24T19:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-24T19:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-24T19:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-08-24T19:56:23] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T20:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-08-24T20:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2155
[2026-08-24T20:27:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T20:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-08-24T20:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2167
[2026-08-24T20:47:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T20:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-08-24T21:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2152
[2026-08-24T21:07:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T21:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-08-24T21:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2157
[2026-08-24T21:27:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T21:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-08-24T21:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2145
[2026-08-24T21:47:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T21:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-08-24T22:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2141
[2026-08-24T22:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2147
[2026-08-24T22:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2151
[2026-08-24T22:17:05] living_room_occupancy | OccupancySensing.Occupancy = 1

## 任务
请结合下面的 Matter 设备日志，判断是否存在设备健康问题，并说明可能的故障类型。

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: 正常样本两房间仍保持接近；异常样本差值突然扩大且只有一侧偏移。"
  ],
  "key_evidence": [
    "正常样本两房间仍保持接近；异常样本差值突然扩大且只有一侧偏移。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "卧室温度传感器在夜间出现严重的数据跳变和逻辑矛盾，显示设备可能故障或受到干扰。",
  "reasoning": [
    "推理步骤 1: 分析时间线发现，在 2026-08-24T17:00:00 时，卧室温度传感器报告数值为 2580 (约 25.8°C)，而仅 5 分钟后 (17:05:00) 骤降至 2266 (约 22.66°C)。这种在短时间内发生超过 3 度的剧烈下降不符合正常热惯性规律。",
    "推理步骤 2: 对比同一时间段的其他数据，客厅温度在同一时刻从 2520 平稳过渡到 2349，厨房温度也保持平稳下降趋势，说明环境温度整体是稳定下降的（可能是空调开启或室外降温），排除了环境突变导致的可能性。",
    "推理步骤 3: 结合 occupancy_sensor 日志，17:00 后卧室无人活动，且后续温度持续缓慢下降至 2141°C (约 21.4°C)，符合夜间自然散热特征。唯独 17:00 的那个 2580 读数是一个孤立的异常峰值，极大概率是传感器硬件故障、通信丢包导致的错误上报或校准失效。"
  ],
  "key_evidence": [
    "2026-08-24T17:00:00 bedroom_temp_sensor 报告 2580，随后 5 分钟内骤降至 2266，温差变化 >3 度且无合理物理原因。",
    "同期客厅和厨房温度传感器数据显示正常的线性下降趋势，证明环境背景正常，异常仅存在于卧室传感器。",
    "该异常读数发生在住户回家前（门锁操作在 18:06），若传感器真实反映高温，可能导致空调误判或用户进入时感到不适，属于潜在的设备健康隐患。"
  ],
  "recommended_actions": [
    "立即检查卧室温度传感器的电池电量及连接状态，排除供电不稳导致的读数错误。",
    "尝试重置卧室温度传感器，并重新校准其基准温度。",
    "在维修期间，建议暂时依赖客厅温度传感器作为卧室温度的参考值，或手动设置恒温器以保障舒适度。"
  ]
}
```


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: SQ1
- 重点房间: living_room
- 重点设备: bedroom_temp_sensor, living_room_temp_sensor
- 已选事件数: 133

## 设备事件日志
[2026-07-19T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-19T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-19T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-19T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-19T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-19T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-19T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-19T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-19T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-19T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-19T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-19T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-19T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-19T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-19T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-19T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-19T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-19T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-19T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-19T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-19T12:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:11:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-19T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-07-19T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-19T12:29:00] living_room_light | OnOff.OnOff = False
[2026-07-19T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-19T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-19T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-19T12:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:46:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-19T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-19T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-19T13:09:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:11:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T13:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-07-19T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-19T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-19T13:34:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:41:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-19T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-19T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-19T13:56:09] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-19T14:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-19T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-19T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-07-19T14:11:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T14:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T14:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-19T14:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-19T14:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-19T14:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T14:41:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T14:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T14:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-19T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-19T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-19T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-19T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-19T15:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:06:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-19T15:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-19T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-19T15:29:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:31:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-19T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-19T15:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:56:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-19T16:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-19T16:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:21:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-19T16:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:46:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-19T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-19T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-07-19T17:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-07-19T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-19T17:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T17:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T17:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-19T17:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-19T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-19T17:41:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T17:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T17:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T17:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-19T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-07-19T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-19T18:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T18:11:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T18:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-19T18:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2202
[2026-07-19T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-19T18:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T18:36:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T18:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-19T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2189
[2026-07-19T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-19T18:59:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T19:01:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T19:06:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T19:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-19T19:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T19:26:17] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T19:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T19:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2188
[2026-07-19T19:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-07-19T19:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T19:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272

## 任务
请结合下面的 Matter 设备日志，判断是否存在设备健康问题，并说明可能的故障类型。

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: 正常样本两房间仍保持接近；异常样本差值突然扩大且只有一侧偏移。"
  ],
  "key_evidence": [
    "正常样本两房间仍保持接近；异常样本差值突然扩大且只有一侧偏移。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器在下午时段出现严重的数据跳变和逻辑矛盾，显示设备可能故障或受到极端干扰。",
  "reasoning": [
    "推理步骤 1: 分析时间线发现，从 14:00 到 16:59，客厅温度（living_room_temp_sensor）呈现持续且合理的下降趋势（从 2461 降至 2362），符合独居老人家中无人活动时的自然散热规律。",
    "推理步骤 2: 在 17:00:00 这一时刻，日志中同时出现了两条记录：一条显示温度骤升至 2520，另一条显示卧室温度也异常飙升至 2580。这种瞬间的剧烈升温与前一小时的降温趋势完全相反，且数值极高（约 25.2°C - 25.8°C，假设单位是 mK 则约为 25.2-25.8°C，若为原始值则远超正常室温范围，结合上下文推测为异常高值）。",
    "推理步骤 3: 随后在 17:15:00，温度又瞬间回落到 2356，并在之后继续缓慢下降。这种“骤升 - 骤降”的非物理性波动模式，排除了环境温度突变的可能性，极大概率是传感器硬件故障、通信丢包导致的乱码，或者是被恶意攻击篡改了数据。",
    "推理步骤 4: 考虑到住户为独居老人，如果该传感器用于联动空调或烟雾报警系统，其故障可能导致无法正确判断室内环境，存在安全隐患（如误报或漏报）。"
  ],
  "key_evidence": [
    "2026-07-19T17:00:00 时刻 living_room_temp_sensor 读数从 2362 突变为 2520，紧接着 bedroom_temp_sensor 也突变为 2580。",
    "2026-07-19T17:15:00 时刻上述两个传感器的读数又分别瞬间回落至 2356 和 2244，显示出明显的非连续性数据跳变。",
    "此前 14:00-16:59 期间数据平稳下降，与 17:00 的突变形成强烈对比，不符合自然热力学规律。"
  ],
  "recommended_actions": [
    "立即检查客厅和卧室的温度传感器硬件状态，确认是否损坏或被遮挡。",
    "暂时手动校准或重置这两个传感器，并观察后续数据是否恢复正常。",
    "联系 Matter 网络管理员或设备厂商排查是否存在针对特定传感器的数据注入攻击。",
    "在修复前，建议人工定期监测室内实际温度，确保老人生活环境安全。"
  ]
}
```


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: 三室两厅 (3BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅副灯[dimmable_light], 客厅氛围灯[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1[window_covering], 客厅窗户传感器1[contact_sensor], ... 共10个设备
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 房间 dining_room: 餐厅灯[dimmable_light], 餐厅运动传感器[occupancy_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 kids_room: 儿童房灯[dimmable_light], 儿童房运动传感器[occupancy_sensor], 儿童房窗帘[window_covering], 儿童房窗户传感器[contact_sensor], 儿童房温度传感器[temperature_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], 厨房漏水传感器[water_leak_detector]
- 房间 master_bathroom: 主卫灯[onoff_light], 主卫运动传感器[occupancy_sensor], 主卫漏水传感器[water_leak_detector]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧床头灯[onoff_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_bathroom: 次卫灯[onoff_light], 次卫漏水传感器[water_leak_detector]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧空调[air_conditioner], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_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: SQ1
- 重点房间: living_room
- 重点设备: living_room_light_1, master_bathroom_occupancy, master_bedroom_occupancy
- 已选事件数: 125

## 设备事件日志
[2026-07-01T00:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T01:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-07-01T01:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-01T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-01T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-01T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-01T03:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-01T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-01T04:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T04:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-01T04:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-01T04:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-01T04:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-07-01T04:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T04:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T04:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-01T04:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-01T04:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-01T04:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-01T05:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-01T05:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T05:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-01T05:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-01T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-01T05:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-01T05:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-01T05:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T05:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-01T05:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-01T05:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-01T05:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-01T06:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-01T06:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-01T06:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-07-01T06:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-01T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-01T06:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T06:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-01T06:39:00] master_bathroom_light | OnOff.OnOff = False
[2026-07-01T06:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-01T06:41:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T06:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-01T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-01T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-01T06:55:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-01T07:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T07:03:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:05:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:05:00] living_room_light_1 | OnOff.OnOff = True
[2026-07-01T07:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-01T07:10:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-01T07:16:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:17:14] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-01T07:17:22] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-07-01T07:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-01T07:23:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-01T07:26:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-01T07:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-01T07:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-01T07:35:04] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:41:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-01T07:47:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-01T07:53:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:55:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-01T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-01T08:10:04] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-01T08:16:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-01T08:22:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-01T08:28:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-01T08:40:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-01T08:45:04] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-01T08:51:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-01T08:57:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-01T09:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-01T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-01T09:13:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:15:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-01T09:20:04] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-01T09:26:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-01T09:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-01T09:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-01T09:42:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-01T09:48:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:50:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-01T09:55:04] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T10:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2560
[2026-07-01T10:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-01T10:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-01T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-01T10:23:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T10:45:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-01T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-01T11:18:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
根据以下传感器与设备记录，评估目标设备当前工作状态是否正常。如异常，请给出故障判断依据。

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: 正常样本是起床链路的短时活动；异常样本是长时间单点持续 Occupied。"
  ],
  "key_evidence": [
    "正常样本是起床链路的短时活动；异常样本是长时间单点持续 Occupied。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在正常监测期间出现数据丢失（None），且整体家庭温度读数异常偏高，疑似传感器故障或环境极端异常。",
  "reasoning": [
    "推理步骤 1: 分析时间线发现，在 2026-07-01T07:25:00 时厨房温度传感器报告了有效值 (2519)，但在随后的 2026-07-01T07:26:00 立即报告为 None，随后又恢复数值。这种瞬间的数据中断（Data Gap）是典型的传感器通信故障、电源波动或硬件死机特征。",
    "推理步骤 2: 检查温度数值的合理性。日志中显示的温度值（如 2401, 2556 等）明显高于标准摄氏度单位（通常范围 -20 到 60）。虽然 Matter 协议允许自定义单位，但结合多个房间（客厅、主卧、儿童房、厨房）同时出现 23-25 度以上的读数，且数值随时间线性缓慢上升，这不符合自然昼夜温差变化规律（夜间应降温，清晨应回升但不会持续攀升至 25+ 度而不触发空调或报警）。这表明传感器可能发生了严重的读数漂移（Drift）或校准错误。",
    "推理步骤 3: 综合判断。单一传感器的瞬时掉线（None）加上多房间传感器长期存在的非物理合理的高数值漂移，强烈指向传感器硬件故障或固件逻辑错误，而非真实的环境高温威胁。若为真实火灾风险，烟雾报警器应在如此高的‘温度’下早已触发，但其状态未变，进一步佐证了这是传感器数据层面的问题。"
  ],
  "key_evidence": [
    "2026-07-01T07:26:00 厨房温度传感器报告 MeasuredValue = None，表明数据传输中断。",
    "所有房间温度传感器读数均异常偏高（2300-2560 范围），且呈现无规律的持续上升趋势，不符合物理常识。",
    "在疑似高温环境下，厨房烟雾报警器未触发任何警报事件。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的电池供电及连接状态，尝试重启设备。",
    "对比其他品牌或类型的温度计进行交叉验证，确认是否为全屋性误报。",
    "联系设备制造商获取固件更新或安排硬件更换，防止因传感器失效导致的安全盲区。"
  ]
}
```


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: SQ1
- 重点房间: living_room
- 重点设备: bedroom_temp_sensor, living_room_temp_sensor
- 已选事件数: 132

## 设备事件日志
[2026-07-29T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-29T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-29T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-29T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-29T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-29T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-29T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-29T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-29T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-29T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-29T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-29T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-29T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-29T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-29T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-29T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-29T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-29T12:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-29T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-29T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-29T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-29T12:39:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:49:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:53:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-29T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-29T13:04:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:14:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:18:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-07-29T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-29T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-29T13:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:43:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-29T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-29T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-29T13:59:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:02:08] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-29T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-29T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-29T14:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:22:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-29T14:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2460
[2026-07-29T14:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:47:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-29T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-29T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-29T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-29T15:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:12:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-29T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-29T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-29T15:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:37:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-29T15:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-29T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-29T15:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:02:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-29T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-29T16:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:29:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-29T16:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-07-29T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-29T16:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:57:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-29T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-07-29T17:01:54] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T17:04:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-29T17:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-29T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-07-29T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-29T17:29:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:32:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-29T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-29T17:48:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:52:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-29T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-29T18:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:13:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:17:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-29T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2200
[2026-07-29T18:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:38:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:42:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-29T18:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2193
[2026-07-29T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-29T19:03:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T19:07:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T19:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T19:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-29T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-29T19:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T19:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T19:31:54] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T19:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-07-29T19:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2169
[2026-07-29T19:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-29T19:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T19:53:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T19:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
根据以下传感器与设备记录，评估目标设备当前工作状态是否正常。如异常，请给出故障判断依据。

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": "所有传感器数据及状态变化均在正常范围内，未检测到安全威胁或设备故障。",
  "reasoning": [
    "1. 温度数据分析：客厅和卧室的温度传感器读数（如2549, 2415等）符合Matter协议TemperatureMeasurement集群的标准格式，即单位为0.01°C的整数。例如2549代表25.49°C，2415代表24.15°C。这些数值处于舒适的室内温度范围（约22-26°C），且随时间变化的趋势符合自然热力学规律（如白天升温、夜晚降温或空调调节后的稳定），无突变或死值现象。",
    "2.  occupancy（占用）状态分析：各房间运动传感器在中午至傍晚时段频繁触发Occupancy=1，这符合独居老人在家中日常活动（如做饭、休息、走动）的行为模式。特别是在厨房、玄关和客厅的交替出现，逻辑连贯，未发现长时间静止不动导致的异常低占用率（排除跌倒风险），也未发现非居住时间的入侵迹象。",
    "3. 设备功能检查：日志中未出现烟雾报警器报警、漏水传感器触发、门锁异常开启或灶具长时间无人看管等高危事件。虽然17:04厨房温度显示为None，但随后立即恢复正常读数，且伴随正常的占用信号，推测为瞬时通信丢包或传感器刷新延迟，而非永久性故障。"
  ],
  "key_evidence": [
    "客厅温度在22.61°C至25.59°C之间波动，符合夏季/秋季室内舒适区。",
    "卧室温度在21.69°C至25.80°C之间波动，与客厅温度存在合理温差。",
    "12:00-19:57期间，厨房、玄关、客厅、卧室均有规律的占用信号，符合老人日间活动轨迹。",
    "无火灾、漏水、非法入侵或健康紧急事件的告警日志。"
  ],
  "recommended_actions": [
    "继续监控，无需立即干预。",
    "建议定期校准温度传感器以确保长期数据准确性。"
  ]
}
```

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器在下午时段出现严重数据漂移，读数从正常范围突增至异常高温（约 25.6°C），随后又迅速回落，且与卧室及厨房温度趋势不一致，疑似设备故障或校准错误。",
  "reasoning": [
    "推理步骤 1: 分析时间线发现，在 2026-07-29T17:00:00 之前，客厅温度传感器 (living_room_temp_sensor) 的读数呈现持续下降趋势（从 24°C 降至 22.8°C），这与卧室和厨房温度同步下降的趋势一致，符合傍晚气温降低的正常物理规律。",
    "推理步骤 2: 在 2026-07-29T17:00:00 这一时刻，客厅温度传感器读数突然跳变至 25.20°C，而同一时刻卧室温度为 25.80°C（相对合理的高温，可能因老人活动产生热量），但紧接着在 17:00:00 之后的后续报告中，客厅温度并未保持高位，而是继续下降（17:25 为 23.43°C，18:05 为 23.21°C）。",
    "推理步骤 3: 这种‘瞬间飙升后迅速回落’且数值远高于当时环境实际温度（参考卧室和厨房同期较低的温度）的现象，不符合热力学传导规律。考虑到住户为独居老人，若真发生如此剧烈的室温变化，应伴随明显的体感不适或其他行为异常，但日志中未体现相关联动。因此，判定为传感器自身故障（Sensor Malfunction）导致的数据漂移，而非真实的环境突变。",
    "关键证据": [
      "2026-07-29T17:00:00 客厅温度读数突增至 2520 mK (25.2°C)，随后立即开始下降，与前后文趋势断裂。",
      "同一时间点（17:00），卧室温度显示为 2580 mK (25.8°C)，厨房温度在 16:55 为 2402 mK (24.0°C)，客厅温度作为独立空间不应瞬间高于卧室且随后快速冷却至低于卧室的水平。",
      "从 16:45 到 17:00，客厅温度呈线性下降趋势，17:00 后的下降趋势也符合自然冷却，唯独 17:00 那个点存在无法解释的尖峰。"
    ],
    "recommended_actions": [
      "立即检查客厅温度传感器的电池供电情况或重新校准设备。",
      "建议更换该温度传感器，以防因数据错误导致空调误判或老人对室温感知偏差引发健康风险。",
      "暂时以卧室或厨房的温度传感器数据作为客厅温度的参考依据，直到故障设备修复。"
    ]
  }
}
```


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: SQ1
- 重点房间: living_room
- 重点设备: bedroom_temp_sensor
- 已选事件数: 126

## 设备事件日志
[2026-07-16T00:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2178
[2026-07-16T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-16T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-16T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-16T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-16T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-16T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-16T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-16T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-16T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-16T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-16T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-16T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-16T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-16T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-16T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-16T10:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-16T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-16T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-16T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-16T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-16T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-16T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-16T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-16T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-16T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-16T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-16T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-16T11:25:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-16T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-16T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-16T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-16T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-16T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-16T11:55:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-16T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-16T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-16T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-16T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-16T12:25:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-16T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-16T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-16T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-16T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-16T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-16T12:55:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-16T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-16T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-16T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-16T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-16T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-16T13:25:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-16T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-16T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-07-16T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-16T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-07-16T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-16T13:55:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-16T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-16T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-16T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-16T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-07-16T14:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-16T14:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-16T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-16T14:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-16T14:25:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T14:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-16T14:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-16T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2460
[2026-07-16T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-16T14:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-16T14:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-16T14:55:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-16T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-16T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-16T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-16T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-16T15:25:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T15:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-16T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-16T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-07-16T15:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-16T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-16T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-16T15:55:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T16:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-16T16:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-16T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-16T16:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-16T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-16T16:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-16T16:25:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T16:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-07-16T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-16T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-16T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-16T16:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-16T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-16T16:55:45] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-16T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-16T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-16T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-16T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-07-16T17:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-16T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-16T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2237
[2026-07-16T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-16T17:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-07-16T18:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-16T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-07-16T18:21:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T18:21:29] living_room_ac | Thermostat.SystemMode = 3
[2026-07-16T18:41:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T19:01:15] living_room_occupancy | OccupancySensing.Occupancy = 1

## 任务
请结合下面的 Matter 设备日志，判断是否存在设备健康问题，并说明可能的故障类型。

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: 正常样本是小幅波动；异常样本出现不可能的极端跳变。"
  ],
  "key_evidence": [
    "正常样本是小幅波动；异常样本出现不可能的极端跳变。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "卧室温度传感器 (bedroom_temp_sensor) 在 14:00 出现严重数据跳变，且后续读数与客厅环境及人体热力学规律严重不符，疑似设备故障或校准失效。",
  "reasoning": [
    "推理步骤 1: 分析时间线发现，在 2026-07-16T13:55:45 时，卧室运动传感器报告无人 (Occupancy=0)，随后卧室温度从正常的约 24°C (2393 mK) 开始缓慢下降，符合夜间/清晨无人的自然冷却趋势。",
    "推理步骤 2: 关键异常发生在 2026-07-16T14:00:00，同一秒内该传感器连续上报了两个截然不同的值：2289 mK (约 1.7°C) 和 2550 mK (约 22.3°C)。这种在同一毫秒级时间窗口内的剧烈跳变（温差超过 20°C）在物理上是不可能的，除非传感器瞬间被极端热源/冷源冲击，但这与环境状态（无人、窗户关闭）矛盾。",
    "推理步骤 3: 随后的数据进一步证实了故障。从 14:05 到 15:30，虽然运动传感器持续报告无人，但温度读数在 22°C 至 25°C 之间剧烈震荡（例如 14:05 为 2550mK，14:10 骤降至 2470mK，14:30 又降至 2361mK）。如果房间真的有人活动，温度应相对稳定或随人体散热微升；如果无人，温度应平稳下降。这种‘无人却高温震荡’的模式表明传感器内部电路不稳定或校准丢失，导致测量值随机漂移。",
    "推理步骤 4: 对比客厅温度传感器 (living_room_temp_sensor)，其读数在同期稳定在 24°C-25°C 之间，且逻辑连贯，证明环境温度正常，排除了外部极端天气导致全屋温度异常的可能性，确认为单点设备故障。"
  ],
  "key_evidence": [
    "2026-07-16T14:00:00 同一时刻上报的 2289 mK 和 2550 mK 两个极端数值。",
    "14:00 - 15:30 期间，在无人员活动的情况下，温度读数呈现非物理规律的剧烈震荡而非平稳变化。",
    "同期客厅温度传感器数据稳定且符合常理，形成鲜明对比。"
  ],
  "recommended_actions": [
    "立即将 bedroom_temp_sensor 标记为离线或不可信，并在智能家居系统中暂时禁用其报警功能以防误报。",
    "安排技术人员上门检查或更换卧室温度传感器硬件。",
    "在维修前，建议用户手动使用独立温度计监测卧室实际温度，以确保空调控制逻辑（若联动）能基于正确数据运行。"
  ]
}
```


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: SQ1
- 重点房间: living_room
- 重点设备: living_room_window, living_room_window_contact
- 已选事件数: 121

## 设备事件日志
[2026-08-05T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-08-05T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-05T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-08-05T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-05T04:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-05T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-05T05:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-05T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-05T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-08-05T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-05T06:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-08-05T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-05T06:22:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-08-05T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-05T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-08-05T06:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T06:42:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-05T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-05T06:57:00] kitchen_light | OnOff.OnOff = False
[2026-08-05T06:57:08] front_door_contact | BooleanState.StateValue = False
[2026-08-05T06:57:15] front_door_lock | DoorLock.LockState = 1
[2026-08-05T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-05T07:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:07:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-05T07:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-05T07:22:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-05T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-05T07:32:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-05T07:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-05T07:52:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-05T07:57:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-05T08:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-05T08:17:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-05T08:22:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-05T08:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:31:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-05T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-05T08:42:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-05T08:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:51:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-05T09:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-05T09:07:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-05T09:10:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 5000
[2026-08-05T09:10:00] living_room_window_contact | BooleanState.StateValue = False
[2026-08-05T09:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:16:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-05T09:20:00] living_room_window_contact | BooleanState.StateValue = True
[2026-08-05T09:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-05T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-05T09:32:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-05T09:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:41:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-05T09:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-05T09:52:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-05T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-05T10:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:06:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-05T10:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-05T10:17:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-05T10:22:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-05T10:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:31:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-05T10:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-05T10:42:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-05T10:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:51:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-05T11:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-05T11:07:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-05T11:11:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-05T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-05T11:16:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-05T11:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-05T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-05T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-05T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-05T11:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T11:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-05T11:51:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-05T12:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-05T12:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
根据以下传感器与设备记录，评估目标设备当前工作状态是否正常。如异常，请给出故障判断依据。

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": "设备状态正常，日志显示为独居老人在早晨起床后的常规活动及环境数据上报，无安全威胁。",
  "reasoning": [
    "1. **时间与环境背景分析**：日志时间为2026年8月5日清晨至中午（03:10-12:08）。此时段气温传感器读数在23°C-25°C之间（Matter协议中温度值通常以厘度为单位，即2367=23.67°C），属于舒适的室内环境温度，未触发高温或低温警报。",
    "2. **人员活动模式符合预期**：06:38卧室有人，随后06:42厨房有人，08:31客厅有人，09:10窗帘打开。这符合独居老人早晨起床、洗漱、准备早餐/用餐、并在上午开启窗帘透光的正常生活规律。",
    "3. **重点设备行为逻辑自洽**：任务关注的`living_room_window`和`living_room_window_contact`在09:10同时记录到窗帘位置变化（CurrentPositionLiftPercent100ths = 5000，即50%开启）和接触传感器状态变为False（关闭/遮挡）。这表明是住户主动操作窗帘，且动作连贯，非异常震动或故障导致的误报。",
    "4. **门锁与安防状态正常**：06:57入户门传感器显示False（关闭），门锁LockState为1（锁定）。结合后续长时间无外人进入迹象（仅内部房间移动），且老人一直在家活动，排除入侵风险。",
    "5. **无危险源迹象**：厨房灶具虽有人活动，但未检测到烟雾报警器报警或漏水传感器触发，且温度上升平缓，符合烹饪或日常活动特征，无未看管烹饪或火灾风险。"
  ],
  "key_evidence": [
    "09:10:00 living_room_window CurrentPositionLiftPercent100ths = 5000 与 living_room_window_contact StateValue = False 同步发生，确认为正常的窗帘开合操作。",
    "06:38 - 12:08 期间，卧室、厨房、客厅、玄关等多个区域Occupancy传感器持续交替显示为1，证明住户处于清醒和活动状态，排除了跌倒或异常静止（abnormal_inactivity）的风险。",
    "所有温度传感器读数在23-25摄氏度范围内，无极端值。"
  ],
  "recommended_actions": [
    "无需采取紧急措施。",
    "建议继续监控晨间活动规律，若未来出现长时间无活动记录或门窗在非习惯时间开启，再行介入。"
  ]
}
```

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在活跃烹饪时段出现数据丢失（None），且随后数值异常波动，表明设备故障或通信中断。",
  "reasoning": [
    "推理步骤 1: 日志显示从 06:42 开始，厨房运动传感器频繁检测到有人（Occupancy = 1），且厨房温度持续上升（从 2489 升至 2557），符合独居老人起床后准备早餐的正常行为模式。",
    "推理步骤 2: 在 11:11:00 这一关键时间点，厨房温度传感器报告值为 None，紧接着在 11:40:00 和 12:05:00 恢复报告数值时，读数出现了非线性的剧烈跳变（如从正常的 2537 突然降至 2519，而周围卧室温度稳定在 2440-2450 之间）。",
    "推理步骤 3: 考虑到住户为独居老人，厨房是火灾高风险区域，传感器数据的突然丢失和随后的不稳定读数极有可能是硬件故障、电池耗尽或 Matter 协议通信中断导致的，而非真实的环境温度变化。这种故障可能导致无法及时触发烟雾报警或空调联动，构成安全隐患。"
  ],
  "key_evidence": [
    "2026-08-05T11:11:00 kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None (在有人且高温环境下)",
    "2026-08-05T11:40:00 kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531 (相比前一刻的 2557 出现无逻辑下降，而卧室温度未发生同等幅度变化)"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的物理状态、电池电量及连接线路。",
    "验证该传感器是否已正确注册到 Matter 网络并尝试重新配对。",
    "在修复前，建议人工定期巡查厨房温度，以防因传感器失效导致过热或火灾隐患未被及时发现。"
  ]
}
```