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
[2026-07-20T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-20T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-20T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-20T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-20T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-20T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-20T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-20T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-20T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-20T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-20T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-20T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-20T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-20T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-20T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-20T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-20T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-20T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-20T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-20T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-20T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-20T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-20T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-20T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-20T12:26:01] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T12:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T12:35:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-20T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-20T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-20T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-20T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-20T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-20T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-20T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-20T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-20T13:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-20T13:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-20T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-20T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-20T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-07-20T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-20T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-20T14:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-20T14:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-07-20T14:26:01] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T14:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T14:35:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-20T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-20T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-20T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-20T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-20T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-20T15:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-20T15:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-20T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-20T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-20T15:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-20T15:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-20T15:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-20T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-20T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-20T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-20T16:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-20T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-20T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-20T16:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-20T16:26:01] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T16:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T16:35:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-20T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-07-20T16:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-20T17:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-20T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-20T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920
[2026-07-20T17:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-07-20T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-20T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-20T17:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-20T17:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-07-20T17:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-07-20T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-20T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-20T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-20T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-20T18:08:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-20T18:08:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-20T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-20T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-20T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-20T18:28:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T18:35:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2710
[2026-07-20T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2659
[2026-07-20T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2622
[2026-07-20T18:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2193
[2026-07-20T18:56:01] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T19:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-20T19:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-20T19:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2182
[2026-07-20T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2191
[2026-07-20T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2185
[2026-07-20T19:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2189
[2026-07-20T19:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-07-20T19:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-07-20T19:38:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T19:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2265
[2026-07-20T19:58:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T20:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-07-20T20:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2159
[2026-07-20T20:29:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T20:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-20T20:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2166
[2026-07-20T20:49:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T20:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-07-20T21:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2154
[2026-07-20T21:09:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T21:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-07-20T21:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2163
[2026-07-20T21:29:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T21:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-07-20T21:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2148
[2026-07-20T21:48:00] living_room_light_1 | OnOff.OnOff = False
[2026-07-20T21:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2152
[2026-07-20T21:59:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T22:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-07-20T22:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2159
[2026-07-20T22:19:02] living_room_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "卧室温度传感器在17:00出现瞬间异常高温读数（29.2°C），随后迅速恢复正常，疑似传感器故障或数据上报错误。",
  "reasoning": [
    "分析卧室温度传感器（bedroom_temp_sensor）的数据趋势：从早上09:10到下午16:50，温度从约24.5°C缓慢下降至22.7°C，符合夏季傍晚自然降温规律。",
    "在17:00:00时刻，日志显示 bedroom_temp_sensor 的测量值为 2920 (即 29.2°C)。这一数值与前后时刻（16:50为22.7°C，17:25为22.5°C）存在巨大偏差，且该房间无热源活动证据（如空调开启、阳光直射导致局部过热通常不会如此剧烈且瞬时）。",
    "对比同一时间点的其他设备：客厅温度降至24.4°C，厨房温度降至23.6°C，均处于正常舒适范围。入户门锁在18:08才有人手动打开，说明17:00时屋内无人，排除了人体散热导致的局部升温。",
    "17:05之后，卧室温度读数立即回落到22.5°C左右，这种“尖峰”式的异常波动是典型的传感器硬件故障、电池接触不良或通信干扰导致的单次错误数据包特征，而非真实的环境变化。"
  ],
  "key_evidence": [
    "[2026-07-20T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920 (异常高值)",
    "[2026-07-20T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268 (正常值)",
    "[2026-07-20T17:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252 (恢复正常)"
  ],
  "recommended_actions": [
    "检查卧室温度传感器的电池电量，尝试更换电池以排除供电不稳导致的读数错误。",
    "如果问题持续出现，建议重置该传感器或联系厂商进行固件升级/硬件检测。",
    "无需采取紧急安全措施，因为该异常已被确认为孤立的数据点，未引发连锁反应（如误触发空调或报警）。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "low",
  "threat_type": "intrusion",
  "threat_description": "存在异常，但原因更可能属于其他类别。",
  "reasoning": [
    "推理步骤1: 日志里有异常，但我把它归因为另一类威胁。"
  ],
  "key_evidence": [
    "初始两房间读数相近"
  ],
  "recommended_actions": [
    "建议按该错误类别处理。"
  ]
}


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
[2026-07-09T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-07-09T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-09T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-09T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-09T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-09T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-09T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-09T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-09T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-09T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-09T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-09T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-09T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-09T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-09T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-09T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-09T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-09T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-09T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-09T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-09T12:04:53] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T12:08:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-09T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-09T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-09T12:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-09T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-09T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-09T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-09T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-09T13:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-09T13:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-09T13:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-09T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-09T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-09T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-09T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-09T13:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-09T13:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-09T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-09T14:04:53] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T14:08:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T14:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-07-09T14:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-09T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-07-09T14:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-09T14:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-09T14:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-09T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-09T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-09T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-09T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-09T15:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-09T15:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-09T15:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-09T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-09T15:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-07-09T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-09T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-09T15:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-09T15:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-09T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-09T16:04:53] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T16:08:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T16:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-09T16:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-07-09T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-09T16:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-09T16:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-09T16:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-09T16:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-09T17:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-09T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-09T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920
[2026-07-09T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-09T17:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-07-09T17:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-09T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-09T17:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-07-09T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-07-09T17:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2228
[2026-07-09T17:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-09T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-09T18:04:53] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T18:08:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-09T18:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2212
[2026-07-09T18:24:02] front_door_contact | BooleanState.StateValue = False
[2026-07-09T18:24:36] living_room_ac | OnOff.OnOff = True
[2026-07-09T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-09T18:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-09T18:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2201
[2026-07-09T18:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-09T18:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-09T18:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-09T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-09T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-07-09T19:04:53] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T19:08:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-09T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2194
[2026-07-09T19:19:22] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T19:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2686
[2026-07-09T19:39:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-07-09T19:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2674
[2026-07-09T19:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2626
[2026-07-09T19:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2585
[2026-07-09T19:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-09T20:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-07-09T20:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-09T20:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2168
[2026-07-09T20:18:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T20:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-09T20:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2160
[2026-07-09T20:38:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T20:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2148
[2026-07-09T20:58:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T21:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2265
[2026-07-09T21:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2158
[2026-07-09T21:18:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T21:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-09T21:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2160
[2026-07-09T21:38:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T21:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-07-09T21:58:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T22:01:09] living_room_ac | OnOff.OnOff = False
[2026-07-09T22:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-07-09T22:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2153

## 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。

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "卧室温度传感器在17:00出现瞬间异常高温读数（29.2°C），随后迅速恢复正常，疑似传感器故障或数据上报错误。",
  "reasoning": [
    "分析卧室温度传感器（bedroom_temp_sensor）的数据序列：从16:55的22.66°C下降到17:00之前的22.50°C左右，环境趋势是缓慢降温。",
    "在17:00:00时刻，日志显示 bedroom_temp_sensor 的 TemperatureMeasurement.MeasuredValue = 2920 (即29.20°C)。这是一个急剧且不合逻辑的跳变，因为距离上一读数仅过去几分钟，且周围其他房间（客厅、厨房）温度均在23-24°C左右，并未出现整体室温骤升的情况。",
    "紧接着在17:05:00，该传感器读数立即回落到22.59°C，与前后数据及环境温度一致。这种“尖峰”式的异常读数不符合物理世界的热惯性规律，极有可能是传感器硬件故障、电池电压不稳导致的瞬时误报，或者是Matter协议层的数据解析/传输错误。",
    "虽然18:24入户门关闭和空调开启是正常行为，但核心异常点在于单一传感器的非物理性数据突变，属于典型的传感器 malfunction。"
  ],
  "key_evidence": [
    "[2026-07-09T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920 (异常高值)",
    "[2026-07-09T16:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266 (正常值)",
    "[2026-07-09T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259 (恢复正常)"
  ],
  "recommended_actions": [
    "检查卧室温度传感器的电池电量，低电量可能导致读数不稳定。",
    "观察后续日志中是否再次出现类似的瞬时高温尖峰，若频繁发生，建议更换传感器。",
    "确认该读数未触发错误的空调加热指令（当前日志显示空调在客厅，且卧室无独立温控执行器联动记录，风险较低）。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "low",
  "threat_type": "intrusion",
  "threat_description": "存在异常，但原因更可能属于其他类别。",
  "reasoning": [
    "推理步骤1: 日志里有异常，但我把它归因为另一类威胁。"
  ],
  "key_evidence": [
    "初始两房间读数相近"
  ],
  "recommended_actions": [
    "建议按该错误类别处理。"
  ]
}


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ1
- 重点房间: living_room
- 重点设备: bedroom_temp_sensor
- 已选事件数: 126

## 设备事件日志
[2026-08-10T00:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2178
[2026-08-10T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-10T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-10T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-10T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-10T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-10T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-10T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-10T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-10T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-10T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-10T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-10T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-10T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-10T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-10T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-10T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-10T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-10T10:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-10T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-10T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-10T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-10T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-10T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-10T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-10T11:07:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-10T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-10T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-10T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-10T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-10T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-10T11:37:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-10T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-10T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-10T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-10T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-10T12:07:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-10T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-10T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-10T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-08-10T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-10T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-10T12:37:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-10T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-10T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-10T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-10T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-08-10T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-10T13:07:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-10T13:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-10T13:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-10T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-08-10T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-08-10T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-10T13:37:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T13:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-10T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-08-10T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-10T13:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-08-10T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-08-10T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-10T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-08-10T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = -500
[2026-08-10T14:07:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-08-10T14:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-10T14:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-10T14:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-10T14:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-08-10T14:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-08-10T14:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-10T14:37:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T14:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-10T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-10T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-10T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-10T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-10T15:07:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T15:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-10T15:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-10T15:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-10T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-10T15:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-10T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-08-10T15:37:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T15:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-10T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-08-10T15:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-10T15:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-10T16:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-10T16:07:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-10T16:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-10T16:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-08-10T16:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-08-10T16:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-08-10T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-10T16:37:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T16:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-10T16:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-10T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-08-10T16:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-08-10T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-08-10T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-08-10T17:07:03] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-10T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-10T17:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-08-10T17:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-10T17:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2227
[2026-08-10T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-08-10T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-08-10T18:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2220
[2026-08-10T18:11:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T18:11:33] living_room_ac | Thermostat.SystemMode = 3
[2026-08-10T18:31:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T18:51:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T19:11:19] living_room_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "卧室温度传感器出现异常读数（-500）及数据丢失，随后恢复但数值波动剧烈，表明设备存在硬件故障或通信严重不稳定。",
  "reasoning": [
    "1. 识别到极端异常值：在 2026-08-10T14:05:00，卧室温度传感器上报 `TemperatureMeasurement.MeasuredValue = -500`。根据 Matter 协议标准，温度值的单位通常为厘氏度（centi-degrees Celsius），即除以100得到摄氏度。-500 代表 -5.0°C，这在室内环境中且前后文均为正常室温（约23-24°C）的情况下，属于明显的非法或错误读数（通常表示传感器故障、断连或溢出）。",
    "2. 观察数据连续性中断：在异常值 -500 之后，紧接着在 14:10:00 恢复正常读数 2440 (24.4°C)。然而，随后的读数表现出非物理性的剧烈跳变：从 2440 骤降至 2370 (23.7°C)，再降至 2350 (23.5°C)，甚至低至 2215 (22.15°C) 和 2227 (22.27°C)。虽然下午气温可能下降，但在短短一小时内，同一房间内的温度如此剧烈且无规律的波动（尤其是伴随之前的 -500 错误），不符合热惯性规律，暗示传感器采样不稳定或内部逻辑错误。",
    "3. 排除环境因素：客厅和厨房的温度传感器在同一时间段内显示平稳的降温趋势（从 ~25°C 缓慢降至 ~23°C），符合夏季午后自然降温或空调运行的特征。相比之下，卧室传感器的数据不仅包含不可能的极值，其后续变化也与全屋其他区域的热环境脱节，进一步证实是传感器自身而非环境导致的异常。"
  ],
  "key_evidence": [
    "[2026-08-10T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = -500 (非法/故障读数)",
    "[2026-08-10T14:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440 (突然恢复正常)",
    "[2026-08-10T14:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370 (剧烈波动)",
    "[2026-08-10T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215 (持续偏低且与其他房间温差过大)"
  ],
  "recommended_actions": [
    "检查卧室温度传感器的电池电量，低电量可能导致信号传输错误或读数漂移。",
    "尝试重启该温度传感器或将其重新配对至智能家居网络，以排除临时软件故障。",
    "如果问题持续存在，建议更换该温度传感器硬件，因为其读数已不可信，可能影响基于温度的自动化场景（如空调控制）。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "温度读数出现物理不可能跳变",
  "reasoning": [
    "推理步骤1: 日志中出现了不存在的额外报警事件。"
  ],
  "key_evidence": [
    "我假设看到了一个未在日志中出现的 critical 告警。"
  ],
  "recommended_actions": [
    "标记为温度传感器异常跳变，建议检查硬件或链路。"
  ]
}


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ1
- 重点房间: living_room
- 重点设备: living_room_window, living_room_window_contact
- 已选事件数: 122

## 设备事件日志
[2026-08-18T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-18T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-08-18T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-08-18T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-18T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-08-18T04:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-18T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-18T05:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-18T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-08-18T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-18T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-18T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-08-18T06:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-08-18T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-18T06:23:38] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-18T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-18T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-18T06:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-18T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-18T06:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T06:42:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-18T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-18T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-18T07:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T07:07:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T07:08:04] front_door_contact | BooleanState.StateValue = False
[2026-08-18T07:08:13] front_door_lock | DoorLock.LockState = 1
[2026-08-18T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-18T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-18T07:18:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-18T07:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T07:27:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-18T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-18T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-18T07:43:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-18T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-18T07:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-18T07:59:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-18T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-18T08:08:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-18T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-18T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-18T08:23:02] front_door_contact | BooleanState.StateValue = False
[2026-08-18T08:23:38] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-18T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-18T08:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T08:32:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-18T08:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-18T08:43:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-18T08:49:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T08:52:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-18T09:03:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:08:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-18T09:10:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-08-18T09:10:00] living_room_window_contact | BooleanState.StateValue = True
[2026-08-18T09:12:00] living_room_window_contact | BooleanState.StateValue = False
[2026-08-18T09:14:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:15:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-08-18T09:17:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-18T09:23:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-18T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-18T09:33:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-18T09:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:42:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-18T09:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-18T09:53:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-18T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2560
[2026-08-18T10:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T10:07:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-18T10:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-18T10:18:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T10:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-18T10:23:38] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-18T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-18T10:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T10:32:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-18T10:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T10:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-18T10:43:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-18T10:49:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T10:52:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-18T11:03:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-18T11:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-18T11:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-18T11:23:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-18T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-18T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-18T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-18T11:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T11:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-18T11:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-18T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-18T12:03:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-18T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520

## 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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器读数异常偏高且持续上升，远超人体舒适范围及正常室温，疑似传感器故障或数据上报错误。",
  "reasoning": [
    "1. 分析温度数值：日志中 `living_room_temp_sensor` 的 `MeasuredValue` 从 2372 逐步上升至 2560。在 Matter 协议标准中，温度通常以厘氏度（centi-degrees Celsius）为单位，即 2372 代表 23.72°C。然而，该数值在短时间内（03:10 至 10:00）从 23.72°C 持续攀升至 25.60°C，且后续厨房和卧室温度也呈现类似的高位震荡（24-25°C左右）。虽然夏季室温可能较高，但结合其他设备状态看，存在疑点。",
    "2. 对比多源数据一致性：在同一时间段内，`kitchen_temp_sensor` 读数约为 2500-2560 (25.0-25.6°C)，`bedroom_temp_sensor` 读数约为 2385-2458 (23.8-24.5°C)。各房间温度差异在合理范围内（2-3度），说明室内整体环境并未出现极端高温（如火灾导致的几十度升温）。",
    "3. 识别异常模式：重点观察 `living_room_window_contact` 和 `living_room_window`。在 09:10 左右，窗户被打开（Contact=True, Window Position=0% 表示全开？或者 Contact=False 表示开启？通常 Contact True 为关闭，False 为开启，这里逻辑需结合上下文。注意：09:10 Contact=True, 09:12 Contact=False。通常Matter中BooleanState True/False定义取决于具体实现，但紧接着窗户位置变化）。关键在于，如果窗户打开，室温通常会因通风而趋于室外温度或下降，但客厅温度在开窗后依然维持在高位甚至微升。",
    "4. 核心判断依据 - 传感器漂移/故障特征：最显著的异常在于 `living_room_temp_sensor` 的数值精度和稳定性。从 03:10 到 10:00，近7小时内，温度值仅从 2372 变到 2540，变化幅度约 2.68°C。对于电子温湿度计，这种缓慢且线性的爬升在没有明显热源变化的情况下，极有可能是传感器内部元件老化、校准失效（Drift）或ADC转换错误导致的“假性升温”。此外，09:10 窗户动作发生时，温度并未出现预期的波动响应，进一步暗示该传感器读数不可信。考虑到独居老人环境，若空调依赖此数据进行制冷控制，可能导致空调不启动，引发中暑风险；若用于报警，则可能掩盖真实的高温隐患。因此判定为传感器故障。"
  ],
  "key_evidence": [
    "living_room_temp_sensor 在 03:10-10:00 期间读数从 2372 线性缓慢上升至 2540，缺乏自然环境温度应有的波动性。",
    "同一时段内，厨房和卧室温度传感器读数稳定在 24-25°C 区间，与客厅读数量级接近但无剧烈关联变化，排除全屋性极端高温事件。",
    "09:10 客厅窗户开启（Window Covering CurrentPositionLiftPercent100ths = 0, Contact 状态翻转），理论上应引起室温快速变化，但客厅温度传感器读数未表现出相应的动态响应，显示传感器对环境影响不敏感或数据失真。"
  ],
  "recommended_actions": [
    "立即检查客厅温度传感器的物理安装位置，确认是否靠近热源（如阳光直射、电器散热口）或被遮挡。",
    "使用独立的手持温度计对比测量客厅当前实际温度，验证传感器读数准确性。",
    "若确认为传感器故障，建议更换客厅温度传感器，并重新校准智能家居系统中的温度阈值设置，以确保空调控制和健康监控功能的可靠性。"
  ]
}
```

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "intrusion",
  "threat_description": "检测到疑似入侵行为：在独居老人家中，入户门被非法开启并上锁，且客厅窗户出现异常开合状态，伴随室内温度持续异常升高。",
  "reasoning": [
    "时间线分析：日志显示在 07:08 和 08:23 两次发生 front_door_contact (False) 和 front_door_lock (1)，表明有人打开了门锁并重新将其锁定。考虑到住户为独居老人，且后续有频繁的 entrance_occupancy 检测，这极可能是非授权人员进入或尾随进入后试图掩盖行踪。",
    "环境异常关联：从 03:10 到 12:05，living_room_temp_sensor 读数从 23.72°C 持续攀升至 25.60°C（注意单位换算，Matter 协议中摄氏度通常以 0.01 为单位，即 23.72°C -> 25.60°C）。虽然温升幅度看似不大，但结合窗户传感器 living_room_window_contact 在 09:10 变为 True (打开) 随后又变为 False (关闭)，这种“开窗 - 关窗”的短暂动作配合门锁操作，符合入侵者通风、观察或制造噪音干扰的特征。",
    "行为模式矛盾：在 07:08 门锁被操作时，entrance_occupancy 直到 07:18 才检测到有人，中间存在约 10 分钟的盲区或延迟，且在此期间 kitchen_temp_sensor 也在快速上升，暗示可能有外部热源引入或设备故障，但结合门锁事件，人为干预导致门窗状态改变的可能性最大。此外，09:10 窗户突然打开又迅速关闭，而当时 occupancy 显示客厅无人 (08:00-09:08 期间 living_room_occupancy 多为 0 或刚变为 1)，这种无人的窗户开合是典型的入侵迹象。"
  ],
  "key_evidence": [
    "front_door_contact 在 07:08 和 08:23 变为 False，紧接着 front_door_lock 变为 1，显示门锁被外部操作并重新锁定。",
    "living_room_window_contact 在 09:10 瞬间由 False 变为 True 再变回 False，且此时 living_room_occupancy 曾短暂为 0，表明窗户在无居住状态下被异常开启。",
    "室内温度 (living_room_temp_sensor) 在长达 9 小时内呈现单调递增趋势，且与门窗状态变化时间点存在潜在关联，排除了单纯的自然升温。"
  ],
  "recommended_actions": [
    "立即通知当地警方或紧急联系人，报告疑似入室盗窃或非法侵入事件。",
    "检查入户门锁的物理机械结构是否完好，确认是否存在被技术开锁的痕迹。",
    "检查客厅窗户及周围是否有攀爬痕迹或破坏迹象。",
    "联系物业或邻居，核实该时间段内是否有可疑人员在附近活动。"
  ]
}
```


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: 138

## 设备事件日志
[2026-08-12T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-08-12T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-12T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-12T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-12T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-12T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-12T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-12T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-12T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-12T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-12T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-12T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-12T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-12T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-12T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-12T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-12T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-12T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-12T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-12T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-12T12:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:05:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-12T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-12T12:26:38] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T12:30:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-12T12:41:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:45:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:50:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-12T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-12T13:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T13:10:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T13:15:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T13:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T13:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-12T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-12T13:31:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T13:35:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T13:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T13:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T13:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-12T13:53:07] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-08-12T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-12T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-08-12T14:08:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T14:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T14:16:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T14:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-12T14:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-08-12T14:33:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T14:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T14:41:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T14:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T14:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-12T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-08-12T14:58:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-12T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-12T15:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T15:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T15:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T15:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-12T15:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-12T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-12T15:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T15:31:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T15:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T15:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-12T15:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-12T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-08-12T15:53:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T15:56:38] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T16:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T16:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-08-12T16:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-08-12T16:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-08-12T16:18:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T16:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T16:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T16:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-12T16:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-12T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-12T16:43:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T16:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T16:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-08-12T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-12T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-12T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920
[2026-08-12T17:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T17:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-12T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-08-12T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-12T17:23:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-12T17:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T17:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-08-12T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-12T17:38:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T17:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T17:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T17:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T17:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-12T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-08-12T18:03:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T18:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T18:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T18:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-12T18:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-08-12T18:28:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T18:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T18:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T18:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-12T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2190
[2026-08-12T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-08-12T18:58:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T19:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T19:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-08-12T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2195
[2026-08-12T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-12T19:23:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T19:26:38] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T19:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-08-12T19:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2175
[2026-08-12T19:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-12T19:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T19:48:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T19:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T19:55:00] kitchen_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。

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "卧室温度传感器在17:00出现异常跳变（从23°C升至29.2°C），随后迅速恢复正常，疑似传感器故障或受到局部热源干扰。",
  "reasoning": [
    "分析卧室温度传感器数据：在16:55时读数为2280 (22.8°C)，17:00时突然飙升至2920 (29.2°C)，而在17:05时又骤降至2253 (22.53°C)。",
    "对比其他设备状态：同一时间段内，客厅和厨房的温度传感器读数均保持平稳下降趋势（例如客厅从23.65°C降至23.47°C），且所有房间的运动传感器在17:00前后均显示有人活动（Occupancy=1），排除了因长时间无人导致的环境自然冷却或加热滞后现象。",
    "排除正常行为：对于独居老人家庭，室内温度通常在几小时内缓慢变化，不可能在1分钟内发生超过6°C的剧烈波动并立即恢复。这种“尖峰”状的数据特征符合电子传感器瞬时故障、电池接触不良或受到短暂强热源（如暖气、阳光直射或设备自身发热）干扰的特征。"
  ],
  "key_evidence": [
    "[2026-08-12T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920",
    "[2026-08-12T16:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280",
    "[2026-08-12T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253",
    "同期其他房间温度传感器读数稳定，无类似跳变"
  ],
  "recommended_actions": [
    "检查卧室温度传感器的安装位置，确认是否靠近空调出风口、暖气片或阳光直射区域。",
    "尝试更换该传感器的电池，若问题依旧，建议更换传感器硬件以排除内部元件故障。",
    "监控后续日志，确认该异常是否为偶发事件。"
  ]
}
```

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "这些变化仍可视为正常波动。",
  "reasoning": [
    "推理步骤1: 没有看到必须报警的直接证据。"
  ],
  "key_evidence": [
    "设备状态变化幅度看起来仍在可接受范围内。"
  ],
  "recommended_actions": [
    "保持观察即可。"
  ]
}


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: 136

## 设备事件日志
[2026-08-28T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-28T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-28T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-28T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-28T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-28T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-28T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-28T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-28T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-28T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-28T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-28T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-28T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-28T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-28T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-28T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-28T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-28T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-28T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-28T12:04:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:11:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-28T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-28T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-28T12:29:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:34:00] living_room_light | OnOff.OnOff = False
[2026-08-28T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-28T12:39:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:51:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-28T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-28T13:04:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T13:09:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:16:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-08-28T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-08-28T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-28T13:34:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:41:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-08-28T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-28T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-28T13:57:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-08-28T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-08-28T14:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:17:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-28T14:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-28T14:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:42:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:51:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-28T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-28T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-28T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-28T15:04:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T15:07:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:16:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-28T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-28T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-28T15:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:41:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-28T15:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-28T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-08-28T15:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T16:02:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T16:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-28T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-28T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-28T16:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T16:27:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T16:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-28T16:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-08-28T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-28T16:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T16:52:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T16:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-28T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920
[2026-08-28T17:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-08-28T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-08-28T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-08-28T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-08-28T17:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T17:27:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T17:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-08-28T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-28T17:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T17:47:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T17:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T17:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-28T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2217
[2026-08-28T18:04:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T18:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:12:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-28T18:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-08-28T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-28T18:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:37:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-08-28T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2191
[2026-08-28T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-28T18:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-08-28T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2193
[2026-08-28T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-08-28T19:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:29:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:32:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-08-28T19:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-08-28T19:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:49:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:56:00] living_room_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "卧室温度传感器在17:00出现瞬时异常高温读数（29.2°C），随后迅速恢复正常，疑似传感器故障或数据上报错误。",
  "reasoning": [
    "分析卧室温度传感器（bedroom_temp_sensor）的数据序列：从15:00到16:40，温度呈缓慢下降趋势（23.3°C -> 22.67°C），符合傍晚自然降温规律。",
    "在17:00:00时刻，日志记录显示 bedroom_temp_sensor 的 MeasuredValue 为 2920（即 29.2°C）。这一数值与前后时刻（16:40的22.67°C和17:05的22.68°C）存在巨大偏差（约6-7°C的突变）。",
    "考虑到独居老人的居住环境，室内温度通常由空调或暖气控制，且客厅、厨房等其他房间在同一时间段内温度变化平缓（均在23-24°C左右），卧室不可能在短时间内发生如此剧烈的升温。",
    "该异常值仅持续了极短时间（17:00出现，17:05已恢复至正常范围22.68°C），没有伴随其他设备（如空调开启、窗户打开等）的状态变化来解释这一升温，因此判定为传感器硬件故障、校准漂移或通信数据包错误。"
  ],
  "key_evidence": [
    "[2026-08-28T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920 (异常高值)",
    "[2026-08-28T16:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267 (正常值)",
    "[2026-08-28T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268 (恢复正常)"
  ],
  "recommended_actions": [
    "检查卧室温度传感器的电池电量，低电量可能导致读数不稳定。",
    "尝试重启或重新配对该温度传感器，若问题依旧，建议更换传感器。",
    "确认该时间点家中是否有突发热源（如烤箱、取暖器），若无，则确认为设备故障。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "low",
  "threat_type": "intrusion",
  "threat_description": "存在异常，但原因更可能属于其他类别。",
  "reasoning": [
    "推理步骤1: 日志里有异常，但我把它归因为另一类威胁。"
  ],
  "key_evidence": [
    "初始两房间读数相近"
  ],
  "recommended_actions": [
    "建议按该错误类别处理。"
  ]
}