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: 133

## 设备事件日志
[2026-07-29T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-29T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-29T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-29T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-29T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-29T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-29T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-29T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2560
[2026-07-29T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-29T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-29T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-29T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-29T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-29T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-29T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-29T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-29T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-29T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-29T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-29T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-29T12:03:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-29T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-29T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-29T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-29T12:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-29T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-29T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-29T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-29T13:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-29T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-29T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-29T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-29T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-29T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-29T13:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-29T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-29T13:51:35] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-07-29T14:03:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-29T14:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-29T14:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-29T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-29T14:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-29T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-29T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-29T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-29T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-29T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-29T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-29T15:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-29T15:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-29T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-29T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-29T15:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-29T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-29T15:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-29T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-29T15:51:35] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-07-29T16:03:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-29T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-29T16:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-29T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-29T16:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-29T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-29T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-29T16:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-29T17:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-29T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-29T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-07-29T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-29T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-29T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-29T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-29T17:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-07-29T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-29T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2228
[2026-07-29T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-29T17:51:35] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-29T18:03:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-29T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-29T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2647
[2026-07-29T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2708
[2026-07-29T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-07-29T18:30:13] entrance_light | OnOff.OnOff = True
[2026-07-29T18:30:33] living_room_ac | Thermostat.SystemMode = 3
[2026-07-29T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2707
[2026-07-29T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2703
[2026-07-29T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2652
[2026-07-29T18:48:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-29T18:50:21] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-07-29T19:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-29T19:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2190
[2026-07-29T19:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2186
[2026-07-29T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2193
[2026-07-29T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2181
[2026-07-29T19:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-29T19:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-07-29T19:33:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T19:35:21] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T19:54:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-29T19:55:21] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T20:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2270
[2026-07-29T20:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2173
[2026-07-29T20:28:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T20:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-29T20:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2159
[2026-07-29T20:48:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T20:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-07-29T21:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2146
[2026-07-29T21:08:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T21:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-29T21:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2160
[2026-07-29T21:28:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T21:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-07-29T21:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2158
[2026-07-29T21:48:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T21:55:00] living_room_light_1 | OnOff.OnOff = False
[2026-07-29T22:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-07-29T22:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2143
[2026-07-29T22:18:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T22:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258

## 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": "厨房温度传感器在报告了异常高温（约 270°C）后，连续两次返回 None 值，表明设备可能已损坏、断电或通信中断。",
  "reasoning": [
    "推理步骤 1: 分析日志发现，厨房温度传感器 (kitchen_temp_sensor) 在 18:20 至 18:45 期间报告的温度值急剧上升，从正常的 23-24°C 飙升至 2647 (26.47°C) 和 2708 (27.08°C)，随后维持在 2707°C 左右。虽然 27°C 对于室内环境来说偏高但并非不可能（如极端天气或故障空调），但结合后续数据看存在疑点。",
    "推理步骤 2: 关键异常出现在 18:48:00，该传感器上报的 MeasuredValue 变为 'None'。紧接着在 19:54:00 再次上报 'None'。这种从具体数值突然变为空值（None）的模式，通常意味着传感器硬件故障、电池耗尽、连接断开或固件崩溃，而非单纯的环境温度变化。",
    "推理步骤 3: 尽管 18:20-18:45 的高温读数本身也可能暗示火灾风险（fire_risk），但由于传感器随后失效（返回 None），我们无法确认高温是否持续或是否导致了火灾。因此，首要且确定的问题是传感器本身的 malfunction（故障/失效），导致安全监控出现盲区。"
  ],
  "key_evidence": [
    "[2026-07-29T18:48:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None",
    "[2026-07-29T19:54:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None"
  ],
  "recommended_actions": [
    "立即检查厨房烟雾报警器 (smoke_co_alarm) 的状态，确保其正常工作以弥补温度传感器的缺失。",
    "手动检查厨房是否有过热迹象、烟味或异常气味。",
    "联系技术支持或更换厨房温度传感器，并检查其电源连接和 Matter 网络状态。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: 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
[2026-07-07T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-07T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-07T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-07T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-07T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-07T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-07T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-07T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-07T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-07T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-07T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-07T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-07T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-07T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-07T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-07T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-07T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-07T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-07T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-07T12:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:07:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-07T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-07T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-07T12:29:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:32:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-07T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-07T12:42:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:47:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-07T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-07T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-07T13:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:12:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-07T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-07T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-07T13:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:37:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-07T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-07T13:56:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-07T14:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-07T14:14:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:21:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-07T14:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-07T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-07T14:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:46:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-07T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-07T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-07T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-07T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-07T15:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:11:32] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T15:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-07T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-07T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-07T15:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:41:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-07T15:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-07T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-07T15:59:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:06:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-07T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-07T16:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:31:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-07T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-07T16:49:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:56:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-07T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-07-07T17:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-07T17:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-07T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-07T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-07T17:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-07T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-07-07T17:46:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-07T18:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2232
[2026-07-07T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-07T18:11:32] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T18:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-07T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-07T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-07T18:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:41:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-07T18:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2187
[2026-07-07T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-07T19:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:06:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-07T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2185
[2026-07-07T19:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-07T19:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:31:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2172
[2026-07-07T19:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:55:00] kitchen_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_drift",
  "threat_description": "卧室温度传感器读数出现严重漂移，显示极低温度（约 -10°C），与客厅及厨房的高温环境（约 25°C）及住户在室内活动的逻辑完全矛盾。",
  "reasoning": [
    "推理步骤 1: 分析时间线与环境一致性。日志显示从中午 12:00 到下午 17:00，厨房和客厅的温度传感器读数稳定在 24°C-26°C (2400-2600 mK) 之间，且多个房间（厨房、客厅、玄关）频繁检测到人员活动（Occupancy=1），表明房屋内部处于正常居住状态，环境温度应均匀且舒适。",
    "推理步骤 2: 识别异常数据模式。卧室温度传感器（bedroom_temp_sensor）在 12:20 至 17:00 期间持续报告数值在 2172-2429 mK (-10°C 左右)，而同一时间段内其他区域温度为正值。这种跨房间的极端温差在密闭住宅中物理上不可能存在，除非传感器故障或校准失效。",
    "推理步骤 3: 结合用户画像评估风险。住户为独居老人，若系统误判卧室温度过低并触发空调制热或报警，可能导致老人因设备错误响应而受冻；反之，若该传感器用于健康监测（如通过体温推断），其错误读数将导致对老人健康状况的误判。鉴于数据与其他所有传感器及常识严重冲突，判定为传感器漂移/故障。"
  ],
  "key_evidence": [
    "卧室温度传感器在 17:00 报告 2231 mK (-10.14°C)，而仅 1 小时前的 16:45 客厅温度为 2368 mK (9.54°C)，两者温差超过 20°C，违背热力学常识。",
    "在卧室温度异常期间（12:20-17:00），厨房和客厅多次检测到人员活动，证明屋内有人且环境温暖，排除了全屋极寒的可能性。"
  ],
  "recommended_actions": [
    "立即标记 bedroom_temp_sensor 为‘故障’或‘需维护’状态，并在智能家居系统中暂时屏蔽其温度读数，防止基于此数据的自动化控制（如开启暖气）造成能源浪费或设备损坏。",
    "通知住户或其监护人检查卧室温度传感器是否被遮挡、电池电量不足或硬件损坏，并尽快安排更换或重新校准。"
  ]
}
```


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: 123

## 设备事件日志
[2026-08-09T00:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2169
[2026-08-09T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-09T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-09T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-09T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-09T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-09T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-09T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-09T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-09T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-09T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-09T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-09T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-09T09:57:18] living_room_ac | OnOff.OnOff = True
[2026-08-09T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-09T10:07:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-09T10:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-09T10:27:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-09T10:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-09T10:47:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-09T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-09T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-09T11:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:12:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-09T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-09T11:24:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-09T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-09T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-09T11:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:47:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-09T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-09T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2655
[2026-08-09T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-09T12:12:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-09T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-09T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-09T12:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2906
[2026-08-09T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-08-09T12:33:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-08-09T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-09T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-09T12:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:47:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2825
[2026-08-09T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-09T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2711
[2026-08-09T13:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-09T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-09T13:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T13:22:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-08-09T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-09T13:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-09T13:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-09T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-08-09T13:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T13:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-09T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-09T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-09T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-08-09T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-09T14:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-08-09T14:12:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-08-09T14:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-09T14:24:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-09T14:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-09T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-09T14:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:47:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-09T14:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-09T15:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-09T15:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-09T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-09T15:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T15:22:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-09T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-08-09T15:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-09T15:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-09T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-09T15:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T15:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-08-09T16:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-09T16:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-09T16:12:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T16:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-08-09T16:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-08-09T16:24:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T16:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-08-09T16:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-08-09T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-08-09T16:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T16:47:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T16:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-09T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-08-09T17:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-08-09T17:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-08-09T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-08-09T17:22:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T17:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-08-09T17:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-08-09T17:42:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-08-09T17:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-08-09T18:02:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-09T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2218
[2026-08-09T18:22:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-09T18:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2208
[2026-08-09T18:42:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T18:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294

## 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": "厨房温度传感器在正常烹饪过程中出现严重数据漂移和逻辑矛盾，导致无法准确反映真实环境温度。",
  "reasoning": [
    "推理步骤 1: 分析时间线发现，在 2026-08-09T12:33:30 厨房窗户被打开（contact_sensor=False）后，厨房温度传感器读数开始剧烈波动且不符合物理规律。",
    "推理步骤 2: 具体表现为：12:50 读数为 2825 (约 28.2°C)，随后在 13:05 骤降至 2711，13:40 又降至 2491，而与此同时卧室温度从 24°C 持续下降至 22°C，客厅温度也呈下降趋势，这与夏季白天开窗通风后室内温度应缓慢变化的规律不符，反而出现了剧烈的非物理性跳变。",
    "推理步骤 3: 最关键的证据是 14:00 时刻，同一设备在同一秒内报告了两个截然不同的值：2384 和 2430，这种瞬时双值现象明确表明传感器硬件故障、通信丢包或固件逻辑错误，而非真实环境变化。",
    "推理步骤 4: 虽然烟雾报警器未触发，但作为安全关键设备，其核心传感器（温度）的失效可能导致火灾预警延迟或误报，属于高风险的设备故障。"
  ],
  "key_evidence": [
    "2026-08-09T14:00:00 厨房温度传感器在同一秒内上报两个不同数值 (2384 和 2430)。",
    "12:33 开窗后，厨房温度读数在 2400-2900 区间无规律剧烈震荡，与相邻房间及自然降温趋势完全背离。",
    "12:12 曾出现 None 值，显示该传感器存在间歇性通信中断或读取失败的历史记录。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的物理连接状态，确认是否松动或供电异常。",
    "尝试重启厨房温度传感器设备以排除临时性固件死锁。",
    "若重启无效，建议联系 Matter 设备管理员更换传感器或升级固件。",
    "在修复前，建议人工定期手动测量厨房温度，并暂时降低对自动温控系统的依赖。"
  ]
}
```


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: 137

## 设备事件日志
[2026-07-02T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-02T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-02T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-02T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-02T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-02T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-02T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-02T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-02T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-02T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-02T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-02T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-02T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-02T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-02T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-02T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-02T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-02T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-02T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-02T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-02T12:01:23] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-02T12:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T12:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-02T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-02T12:25:00] living_room_light | OnOff.OnOff = False
[2026-07-02T12:25:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T12:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-02T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-02T12:40:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T12:45:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T12:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T12:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-02T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-02T13:05:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T13:10:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T13:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T13:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T13:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-02T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-02T13:31:23] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-02T13:35:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T13:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T13:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T13:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-02T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-02T13:55:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T14:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-02T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2460
[2026-07-02T14:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T14:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T14:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-02T14:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-02T14:35:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T14:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T14:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T14:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-02T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-02T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-02T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-02T15:01:23] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-02T15:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T15:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T15:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T15:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-02T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-02T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-02T15:30:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T15:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T15:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-07-02T15:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-02T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-02T15:55:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T16:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T16:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-02T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-02T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-02T16:20:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T16:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T16:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-02T16:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-02T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-02T16:45:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T16:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T16:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T17:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-02T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-07-02T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-02T17:06:00] kitchen_light | OnOff.OnOff = True
[2026-07-02T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-02T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-02T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-02T17:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T17:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T17:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-07-02T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-02T17:40:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T17:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T17:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T17:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-07-02T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-07-02T18:01:23] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-02T18:05:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T18:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T18:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-02T18:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-07-02T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-02T18:31:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T18:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T18:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-02T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2204
[2026-07-02T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-02T18:56:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T19:00:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T19:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-02T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2184
[2026-07-02T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-02T19:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T19:25:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T19:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-02T19:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-02T19:41:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T19:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T19:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T19:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264

## 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 17:00 出现严重数据跳变，从约 23°C 瞬间飙升至 25.8°C，随后又迅速回落，且该读数与卧室及厨房的持续降温趋势完全背离，表明传感器可能发生故障或受到干扰。",
  "reasoning": [
    "推理步骤 1: 分析时间线趋势，从 14:00 到 16:55，卧室温度传感器（bedroom_temp_sensor）和厨房温度传感器（kitchen_temp_sensor）均呈现稳定、合理的自然下降趋势（从约 23.7°C 降至 22.6°C），符合独居老人家中无人活动时的散热规律。",
    "推理步骤 2: 对比同一时间点的数据，在 17:00:00，客厅温度传感器（living_room_temp_sensor）突然报告数值 2580（即 25.8°C），而仅几分钟后（17:05:00）该传感器读数又骤降至 23.43°C。这种在短时间内剧烈波动且幅度巨大的变化不符合物理热力学规律。",
    "推理步骤 3: 结合住户画像（独居老人），若真实发生火灾或高温异常，卧室和厨房的温度也应同步上升，但日志显示它们仍在下降。因此，17:00 的 25.8°C 读数极大概率是传感器硬件故障、通信干扰导致的乱码，或是被恶意篡改，属于典型的传感器失效（Sensor Malfunction）。"
  ],
  "key_evidence": [
    "2026-07-02T17:00:00 living_room_temp_sensor 报告 MeasuredValue = 2580 (25.8°C)，与前一刻的 23.93°C 相比异常升高。",
    "2026-07-02T17:05:00 living_room_temp_sensor 立即回落到 23.43°C，且与此同时 bedroom_temp_sensor 为 22.66°C，厨房也在正常降温，排除了全屋火灾的可能性。"
  ],
  "recommended_actions": [
    "立即检查客厅温度传感器的物理状态，确认是否被遮挡、损坏或电池接触不良。",
    "联系设备供应商进行固件更新或硬件更换，以防因传感器误报导致老人对温控系统失去信任或错过真实的高温预警。",
    "在维修期间，建议人工定期查看客厅实际温度，确保老人居住环境舒适安全。"
  ]
}
```


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: 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: living_room_window, living_room_window_contact
- 已选事件数: 129

## 设备事件日志
[2026-08-13T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-13T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-08-13T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-08-13T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-08-13T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-13T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-08-13T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-08-13T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-13T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-13T04:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-13T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-13T05:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T05:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-13T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-08-13T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-13T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-13T05:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-08-13T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-08-13T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-13T06:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-13T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-08-13T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-08-13T06:21:03] bedroom_light | OnOff.OnOff = True
[2026-08-13T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-13T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-13T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-13T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-13T06:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T06:34:10] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-13T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-13T06:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-13T06:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-13T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-08-13T06:54:10] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T06:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-13T07:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-08-13T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-13T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-13T07:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-08-13T07:11:00] bathroom_light | OnOff.OnOff = False
[2026-08-13T07:11:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T07:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-08-13T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-13T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-13T07:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-13T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-13T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-13T07:35:00] kitchen_light | OnOff.OnOff = False
[2026-08-13T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-13T07:35:08] bedroom_light | OnOff.OnOff = False
[2026-08-13T07:35:15] front_door_lock | DoorLock.LockState = 2
[2026-08-13T07:35:19] front_door_contact | BooleanState.StateValue = True
[2026-08-13T07:35:20] front_door_lock | DoorLock.LockState = 1
[2026-08-13T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-13T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-13T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-13T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-13T07:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-13T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-13T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-13T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-13T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-13T08:05:59] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-13T08:11:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-13T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-13T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-13T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-13T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-13T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-13T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-13T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-13T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-13T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-13T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-13T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-13T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-13T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-13T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-13T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-13T09:05:59] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T09:10:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 5000
[2026-08-13T09:10:00] living_room_window_contact | BooleanState.StateValue = False
[2026-08-13T09:11:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-13T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-13T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-13T09:20:00] living_room_window_contact | BooleanState.StateValue = True
[2026-08-13T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-13T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-13T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-13T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-13T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-13T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-13T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-13T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-13T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-13T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-13T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-13T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-13T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-13T10:05:59] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T10:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-13T10:11:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-13T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-13T10:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-13T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-13T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-13T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-13T10:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-13T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-13T10:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-13T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T10:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-13T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-13T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-13T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437

## 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: 正常样本窗户/窗帘状态变化一致；异常样本存在重复矛盾读数。"
  ],
  "key_evidence": [
    "正常样本窗户/窗帘状态变化一致；异常样本存在重复矛盾读数。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "厨房温度异常升高且持续上升，远超正常烹饪或环境升温范围，存在严重火灾风险。",
  "reasoning": [
    "推理步骤 1: 分析时间线发现，从 06:10 开始，厨房温度传感器 (kitchen_temp_sensor) 读数迅速攀升，从 2483 (约 24.8°C) 在短短 1 小时内飙升至 2559 (约 25.6°C)，并在后续时段维持在 2540-2560 区间。",
    "推理步骤 2: 对比卧室和客厅温度，卧室温度稳定在 24°C 左右，而厨房温度显著高于其他区域且呈现非自然的持续上升趋势，排除了单纯的环境气温变化因素。",
    "推理步骤 3: 检查关联设备日志，虽然记录了灶具 (cook_surface) 的状态，但并未显示其关闭或报警状态；同时烟雾报警器 (smoke_co_alarm) 未触发报警事件。这种‘高温无烟雾/无自动关闭’的组合模式，极有可能是灶具失控、油锅起火初期（尚未产生大量烟雾）或传感器故障导致的假阴性，属于高危隐患。",
    "推理步骤 4: 结合住户习惯，凌晨至清晨时段通常无人活动（occupancy 为 0），若此时发生烹饪事故，将导致长时间无人看管的高温状态，极大增加了火灾发生的概率。"
  ],
  "key_evidence": [
    "06:10 至 07:30 期间，厨房温度从 ~24.8°C 急剧上升至 ~25.6°C，且随后一直维持高位，与其他房间温差过大。",
    "在厨房温度异常升高的整个时间段内，未检测到 smoke_co_alarm 的报警事件，也未见 cook_surface 设备的关闭指令或故障报告。",
    "04:00 至 09:00 期间，living_room_occupancy 和 bedroom_occupancy 多次显示为 0，表明该时段屋内可能无人，无法及时干预潜在的火情。"
  ],
  "recommended_actions": [
    "立即远程通知住户家中厨房可能存在严重过热或火灾隐患，要求尽快回家检查。",
    "建议系统自动向当地消防部门或紧急联系人发送警报（如果配置了相关联动）。",
    "检查厨房烟雾报警器和温度传感器的校准状态，排除传感器漂移导致的误报（尽管概率较低，因温差过大）。",
    "在确认安全前，暂时禁用厨房区域的自动化加热设备或智能插座供电。"
  ]
}
```


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_light
- 已选事件数: 110

## 设备事件日志
[2026-08-09T08:39:03] bedroom_light | OnOff.OnOff = True
[2026-08-09T14:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-08-09T14:20:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-08-09T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-09T14:50:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-09T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-09T15:20:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-08-09T15:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-09T15:50:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-08-09T16:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-08-09T16:20:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T16:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-09T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-08-09T16:50:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-08-09T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-08-09T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-08-09T17:15:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-08-09T17:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T17:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-09T17:29:33] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T17:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-09T17:35:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-08-09T17:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-09T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-09T17:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2232
[2026-08-09T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2230
[2026-08-09T18:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T18:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-08-09T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-08-09T18:10:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T18:13:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-09T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-08-09T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-09T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-09T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-09T18:30:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T18:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2211
[2026-08-09T18:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T18:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2194
[2026-08-09T18:40:06] kitchen_dishwasher | OnOff.OnOff = True
[2026-08-09T18:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2212
[2026-08-09T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-09T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-09T18:55:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-09T19:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2183
[2026-08-09T19:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-08-09T19:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-08-09T19:15:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2194
[2026-08-09T19:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-08-09T19:29:33] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T19:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-08-09T19:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-08-09T19:35:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T19:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2178
[2026-08-09T19:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T19:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-08-09T19:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-08-09T19:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2173
[2026-08-09T20:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2171
[2026-08-09T20:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T20:10:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T20:10:00] bedroom_light | OnOff.OnOff = True
[2026-08-09T20:10:00] bedroom_light | LevelControl.CurrentLevel = 180
[2026-08-09T20:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2174
[2026-08-09T20:18:00] bedroom_light | LevelControl.CurrentLevel = 30
[2026-08-09T20:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-08-09T20:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-08-09T20:30:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T20:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2164
[2026-08-09T20:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T20:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-08-09T20:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-08-09T20:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2153
[2026-08-09T20:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-08-09T20:59:33] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T21:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-08-09T21:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-08-09T21:05:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T21:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2148
[2026-08-09T21:14:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T21:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-08-09T21:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-08-09T21:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2154
[2026-08-09T21:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2149
[2026-08-09T21:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T21:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-08-09T21:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-08-09T21:40:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T21:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2159
[2026-08-09T21:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-08-09T21:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-08-09T22:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-08-09T22:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T22:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2148
[2026-08-09T22:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T22:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-08-09T22:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2246
[2026-08-09T22:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2149
[2026-08-09T22:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244

## 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": "未检测到针对卧室灯的安全威胁或异常行为，设备状态符合正常用户习惯。",
  "reasoning": [
    "1. 分析目标设备 'bedroom_light' 的状态：日志显示该灯在 08:39 开启，随后在 20:10 再次开启并调节亮度（从180降至30），这符合典型的晚间居家活动模式（如阅读、准备休息）。",
    "2. 结合环境上下文：在卧室灯开启的时间段（20:10后），卧室温度传感器读数稳定下降（2174 -> 2164 -> 2153... -> 2148），且卧室 occupancy 传感器持续报告有人（Occupancy=1），表明有人在房间内活动，逻辑自洽。",
    "3. 排除安全威胁：没有发现入侵迹象（门锁无异常记录）、火灾风险（烟雾报警器无触发）、或设备故障（灯光控制响应正常，无卡死或反复跳变）。所有数据点均在合理范围内波动。"
  ],
  "key_evidence": [
    "[2026-08-09T20:10:00] bedroom_light | OnOff.OnOff = True (晚间正常开启)",
    "[2026-08-09T20:18:00] bedroom_light | LevelControl.CurrentLevel = 30 (调暗灯光，符合睡前/休闲场景)",
    "[2026-08-09T20:10:00 - 22:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1 (持续有人，与灯光使用匹配)"
  ],
  "recommended_actions": [
    "无需采取任何行动，系统运行正常。"
  ]
}
```

{
  "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 OnOff 和亮度值一致变化；异常样本存在持续矛盾状态。"
  ],
  "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: 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_ac, living_room_temp_sensor
- 已选事件数: 111

## 设备事件日志
[2026-07-10T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-07-10T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-10T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-10T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-10T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-10T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T10:03:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:07:20] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-10T10:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-10T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T10:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-10T10:32:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-10T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-10T10:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-10T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-10T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T11:03:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:07:20] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-10T11:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-10T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-10T11:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T11:32:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-10T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-10T11:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-10T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-10T12:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T12:03:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:07:20] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-10T12:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-10T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-10T12:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-10T12:32:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-10T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-10T12:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-10T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-10T13:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T13:00:00] living_room_ac | OnOff.OnOff = True
[2026-07-10T13:03:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:07:20] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-10T13:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-10T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2840
[2026-07-10T13:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-10T13:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-10T13:32:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-10T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2720
[2026-07-10T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-10T13:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-10T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-10T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2610
[2026-07-10T14:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T14:03:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:07:20] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-10T14:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-07-10T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-10T14:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-10T14:32:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-10T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-10T14:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-10T14:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-10T15:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T15:03:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:07:20] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-10T15:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-10T15:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-07-10T15:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-07-10T15:32:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-10T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-10T15:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-10T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-10T16:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T16:03:00] front_door_lock | DoorLock.LockState = 2
[2026-07-10T16:03:09] kids_room_light | OnOff.OnOff = True
[2026-07-10T16:08:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-10T16:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-10T16:18:07] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-10T16:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-10T16:33:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-10T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-10T16:43:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-10T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-10T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-10T17:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T17:52:08] living_room_light_1 | OnOff.OnOff = True
[2026-07-10T18:02:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T18:32:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T19:02:06] 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: 正常样本空调开启后温度逐步下降；异常样本持续不降反升。"
  ],
  "key_evidence": [
    "正常样本空调开启后温度逐步下降；异常样本持续不降反升。"
  ],
  "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 (living_room_temp_sensor) 在空调开启后出现严重的数据跳变和逻辑矛盾，显示设备可能已损坏或固件故障。",
  "reasoning": [
    "推理步骤 1: 在 2026-07-10T13:00:00，系统检测到 living_room_ac 开启 (OnOff.OnOff = True)，随后在 13:15:00 和 13:35:00，温度传感器报告了异常高的数值 (2840 和 2720)。考虑到 Matter 协议中温度通常以 0.1°C 为单位，这代表 28.4°C 和 27.2°C，虽然看似高温，但结合上下文看存在更严重的逻辑问题。",
    "推理步骤 2: 关键异常发生在 2026-07-10T13:55:00，同一秒内该传感器连续上报了两个截然不同的值：2610 (26.1°C) 和 2467 (24.67°C)。这种在同一毫秒级时间戳下发生剧烈且无物理意义的数值跳变，是典型的传感器数据流错误或固件崩溃表现。",
    "推理步骤 3: 尽管后续数据回归正常范围 (约 24°C)，但中间出现的极端波动（尤其是单秒内双报不同值）表明传感器无法稳定提供可靠读数。如果这是真实的火灾风险，其他房间的温度传感器应同步升高，但厨房、主卧等区域温度平稳下降，排除了真实环境过热导致的可能性，确认为设备自身故障。"
  ],
  "key_evidence": [
    "2026-07-10T13:55:00 时刻，living_room_temp_sensor 在同一秒内连续上报 MeasuredValue = 2610 和 MeasuredValue = 2467，显示数据不稳定。",
    "空调开启后 (13:00)，温度读数并未呈现预期的线性变化趋势，而是出现了非物理的剧烈震荡和单秒双报现象。",
    "与此同时，厨房、主卧等其他区域的温度传感器数据显示平稳且符合降温逻辑，排除了全屋环境温度骤变的真实场景。"
  ],
  "recommended_actions": [
    "立即检查并重启客厅温度传感器设备，尝试恢复其通信连接。",
    "若重启无效，建议联系技术支持更换该传感器硬件，因为固件层面的修复可能无法解决底层硬件故障。",
    "在维修期间，暂时忽略该传感器的报警阈值设置，避免误触发家庭自动化系统的错误联动（如误关空调）。"
  ]
}
```