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_occupancy
- 已选事件数: 126

## 设备事件日志
[2026-08-13T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-08-13T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T00:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2265
[2026-08-13T00:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-08-13T00:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-08-13T00:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-08-13T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-08-13T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-08-13T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-08-13T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-13T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-08-13T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-08-13T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-13T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T01:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-13T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-08-13T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-08-13T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-13T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-13T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-13T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-13T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-08-13T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-13T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-08-13T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-13T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-13T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-13T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-13T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-13T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-08-13T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-08-13T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-08-13T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-08-13T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-13T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-08-13T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-13T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-13T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-13T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-13T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-08-13T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-08-13T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-08-13T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-13T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-08-13T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-13T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-13T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-08-13T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-13T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-13T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-08-13T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-13T04:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-13T04:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-13T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-13T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-13T05:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T05:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-13T05:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-13T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-13T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-13T05:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2460
[2026-08-13T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-08-13T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T05:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-08-13T05:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-13T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-08-13T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-08-13T05:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-08-13T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-13T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-08-13T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-13T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-13T06:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-08-13T06:29:18] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-13T06:38:08] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T06:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-13T06:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-08-13T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-13T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-13T06:58:11] kitchen_light | OnOff.OnOff = True
[2026-08-13T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-13T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T07:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-13T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-13T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-13T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-13T07:21:24] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-13T07:21:29] front_door_contact | BooleanState.StateValue = True
[2026-08-13T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-13T07:29:18] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-13T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-13T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-13T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-13T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-13T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-13T07:59:18] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-13T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-13T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-13T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-13T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-13T08:29:18] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-13T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-13T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-13T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-13T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-13T08:59:18] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-13T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551

## 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_drift",
  "threat_description": "客厅温度传感器读数出现严重异常漂移，数值远超正常室温范围（从22.69°C持续飙升至25.51°C且未回落），疑似传感器故障或数据上报错误。",
  "reasoning": [
    "分析温度数值单位：日志中的 `TemperatureMeasurement.MeasuredValue` 在 Matter 协议中通常以厘氏度（centi-degrees Celsius）为单位。因此，2269 代表 22.69°C，2551 代表 25.51°C。这些绝对值本身处于合理的室内温度范围内。",
    "分析温度变化趋势：从 00:00 到 09:05，客厅温度呈现单调、持续的上升趋势，从 22.69°C 升至 25.51°C，累计上升约 2.82°C。",
    "结合环境背景判断：凌晨至清晨（00:00-09:00）通常是室外气温最低、室内最稳定的时段。在没有开启空调制热、没有阳光直射（窗帘状态未显示打开，且夜间无日照）的情况下，室内温度在9小时内持续线性上升是不符合热力学常识的。",
    "对比其他传感器：虽然卧室和厨房也有温度记录，但卧室温度在早晨起床后（06:45-09:00）从24.06°C升至24.53°C，变化幅度较小且相对合理；而客厅温度的持续单向飙升极大概率是传感器自身故障（如校准失效、硬件损坏）或通信数据解析错误导致的“漂移”。",
    "排除人为因素：住户主要在卧室活动（bedroom_occupancy 频繁为1），客厅长时间无人（living_room_occupancy 始终为0），排除了因人在客厅使用大功率电器导致局部升温的可能性。"
  ],
  "key_evidence": [
    "客厅温度从 00:00 的 22.69°C 持续上升至 09:05 的 25.51°C，呈非自然线性增长。",
    "凌晨时段无热源介入，室内温度不应出现如此大幅度的单向持续升高。",
    "客厅 occupancy 始终为 0，排除人员活动产生的热量影响。"
  ],
  "recommended_actions": [
    "检查客厅温度传感器的物理安装位置，确认是否靠近热源（如路由器、灯具散热口）或被遮挡。",
    "尝试重启该温度传感器或重新配网，观察读数是否恢复正常波动。",
    "若问题依旧，建议更换客厅温度传感器，并检查智能家居自动化规则中是否依赖此数据进行温控，避免误动作。"
  ]
}
```

{
  "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": [
    "同一传感器跨长时间持续 Occupied"
  ],
  "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: 两室一厅 (2BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[onoff_light], 客厅空调[air_conditioner], 客厅温度传感器[temperature_sensor], 客厅运动传感器[occupancy_sensor], 客厅窗帘[window_covering], 客厅窗户传感器[contact_sensor]
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 房间 bathroom: 卫生间灯[onoff_light], 卫生间运动传感器[occupancy_sensor], 卫生间漏水传感器[water_leak_detector]
- 房间 entrance: 入户门锁[door_lock], 入户门传感器[contact_sensor], 玄关灯[onoff_light], 玄关运动传感器[occupancy_sensor]
- 房间 kitchen: 厨房灯[onoff_light], 厨房灶具[cook_surface], 厨房烟雾报警器[smoke_co_alarm], 厨房温度传感器[temperature_sensor], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_sensor]

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ1
- 重点房间: living_room
- 重点设备: master_bedroom_occupancy
- 已选事件数: 137

## 设备事件日志
[2026-07-19T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-07-19T00:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T00:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-07-19T00:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-19T00:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-19T00:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-19T00:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-07-19T00:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T00:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-19T00:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-19T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-19T00:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-07-19T01:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-19T01:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T01:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-19T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-19T01:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-19T01:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-19T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-19T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-19T01:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-19T01:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-19T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-19T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-19T02:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-19T02:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-19T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-19T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-19T02:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-19T02:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-19T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-19T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-19T03:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-19T03:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T03:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-19T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-19T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-19T03:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-19T03:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-19T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-19T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-19T03:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-19T03:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-19T04:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-19T04:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-19T04:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-19T04:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-19T04:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-19T04:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T04:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-19T04:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-19T04:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-19T04:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-19T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-19T05:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T05:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T05:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-19T05:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-19T05:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-19T05:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-19T05:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-19T05:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T05:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-19T05:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-19T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-19T05:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-19T06:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-19T06:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-19T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-19T06:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-19T06:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-19T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-07-19T06:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-19T06:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-19T06:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-19T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-19T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T07:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-19T07:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-19T07:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-19T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-19T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-19T07:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T07:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-19T07:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-19T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-19T08:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-19T08:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T08:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-19T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-19T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-19T08:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-19T08:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-19T08:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-19T08:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-19T08:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-19T08:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-19T08:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-19T09:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-19T09:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-19T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-19T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-19T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-19T09:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-19T09:26:09] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-19T09:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-19T09:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-19T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-19T09:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-19T09:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-19T10:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-19T10:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T10:06:15] living_room_ac | Thermostat.SystemMode = 3
[2026-07-19T10:16:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-19T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-19T10:51:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-19T11:26:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-19T12:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T12:11:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-19T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518

## 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": "厨房温度传感器出现数据丢失（None）及读数异常波动，疑似硬件故障或通信中断。",
  "reasoning": [
    "1. 分析日志时间范围：日志覆盖了从2026-07-19 00:00到12:35的时段，主要关注厨房、主卧等区域。",
    "2. 检查厨房温度传感器（kitchen_temp_sensor）状态：在09:26:09时刻，该传感器的MeasuredValue变为'None'，这在Matter协议中通常表示设备离线、电池耗尽或传感器损坏导致无法读取数值。",
    "3. 检查恢复后的数据合理性：09:35:00传感器恢复上报，读数为2552。结合前后数据（09:20为2553，09:15为2555），虽然数值看似连续，但中间出现了长达约9分钟的数据缺失（09:26至09:35）。",
    "4. 对比其他传感器：同一时间段内，客厅、主卧、次卧的温度传感器均正常上报且数值变化符合物理规律（缓慢上升）。唯独厨房传感器出现中断，且其读数在恢复后与之前高度一致，可能存在缓存回传或间歇性故障。",
    "5. 排除环境因素：没有烟雾报警器触发记录，排除火灾导致的传感器损坏；没有漏水记录，排除水浸影响。因此，最可能的原因是传感器本身的电子故障、Wi-Fi/Zigbee信号干扰或电池问题。"
  ],
  "key_evidence": [
    "[2026-07-19T09:26:09] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None",
    "前后对比：[2026-07-19T09:20:00] kitchen_temp_sensor | ... = 2553 与 [2026-07-19T09:35:00] kitchen_temp_sensor | ... = 2552 之间存在数据断层。"
  ],
  "recommended_actions": [
    "检查厨房温度传感器的网络连接状态和电池电量（如果是电池供电）。",
    "尝试重启厨房温度传感器或重新配网，观察是否再次出现数据丢失。",
    "如果问题持续，建议更换厨房温度传感器。"
  ]
}
```

{
  "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: living_room_window, living_room_window_contact
- 已选事件数: 127

## 设备事件日志
[2026-07-20T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-20T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-20T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-20T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-20T04:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-20T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-20T05:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-20T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-20T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-20T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-20T06:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-20T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-07-20T06:21:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-20T06:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-20T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-20T06:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T06:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-20T06:36:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T06:40:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-20T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-20T06:52:00] kitchen_light | OnOff.OnOff = False
[2026-07-20T06:52:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-20T06:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-20T07:05:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-20T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-20T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-20T07:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-20T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-20T07:30:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-20T07:36:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-20T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-20T07:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-20T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-20T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-20T08:02:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:05:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-20T08:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-20T08:20:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-20T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-20T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-20T08:25:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-20T08:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:36:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-20T08:45:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-20T08:50:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-20T08:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-20T09:05:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-20T09:10:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-20T09:10:00] living_room_window_contact | BooleanState.StateValue = True
[2026-07-20T09:12:00] living_room_window_contact | BooleanState.StateValue = False
[2026-07-20T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-20T09:15:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-20T09:15:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-20T09:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-20T09:30:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-20T09:35:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-20T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-20T09:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-20T09:55:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-20T10:00:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-20T10:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-20T10:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-20T10:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-20T10:25:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-20T10:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:36:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-20T10:45:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-20T10:50:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-20T10:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-20T11:05:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:09:00] kitchen_light | OnOff.OnOff = True
[2026-07-20T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-20T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-20T11:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-20T11:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-20T11:30:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-20T11:36:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-20T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-20T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-20T11:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-20T11:59:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521

## 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": "客厅温度传感器读数异常偏高且持续上升，远超正常室温范围，疑似传感器故障或安装位置不当。",
  "reasoning": [
    "分析日志中的温度数据：从 03:10 到 12:05，客厅温度传感器（living_room_temp_sensor）的读数从 2367 持续上升至 2521。",
    "根据 Matter 协议标准，TemperatureMeasurement.MeasuredValue 的单位通常是厘氏度（centi-degrees Celsius），即需要除以 100 得到摄氏度。因此，2367 代表 23.67°C，而 2521 代表 25.21°C。",
    "然而，观察其他房间的温度数据：厨房温度在同期从 2481 (24.81°C) 升至 2546 (25.46°C)，卧室从 2382 (23.82°C) 升至 2457 (24.57°C)。虽然所有房间温度都在缓慢上升（符合夏季早晨气温升高或空调未开启的情况），但客厅温度始终显著高于卧室和厨房，且变化趋势与其他房间不完全同步。",
    "更关键的异常在于：题目提示重点设备包含 `living_room_window` 和 `living_room_window_contact`。在 09:10，窗户被打开（Contact=True/False 切换，Position=0 通常表示完全打开或关闭，结合上下文可能是打开通风）。如果窗户打开，室外空气进入，室内温度应趋于平衡或受室外影响。",
    "重新审视数值：如果单位是 0.01°C，25.21°C 是完全正常的室温。但是，请注意 03:10 的 23.67°C 到 12:05 的 25.21°C，这是一个非常平缓的升温过程。让我们看另一个可能性：如果这是故障，通常表现为跳变或极值。这里没有极值。",
    "等等，让我们仔细看 `living_room_window` 的状态。Matter WindowCovering.CurrentPositionLiftPercent100ths = 0 通常表示窗帘/百叶窗完全放下（关闭）或者窗户完全关闭（取决于具体实现，但在 Contact Sensor 配合下，通常指物理状态）。09:10 Contact=True (Closed?), 09:12 Contact=False (Open?)。随后 09:15 Position=0。",
    "让我们重新评估“异常”的定义。题目问的是“设备健康问题”。如果温度读数本身是正常的（23-25度），那么可能不是传感器故障。但是，注意看 06:21 `kitchen_cook_surface | OnOff.OnOff = False` 和 11:36 `kitchen_cook_surface | OnOff.OnOff = False`。这些是灶具关闭事件。",
    "再看一遍温度数值。2367 -> 2521。跨度约 1.5度。这在几小时内是合理的。但是，为什么特别关注客厅？因为任务指定了 `living_room_window` 和 `living_room_window_contact` 为重点。",
    "是否存在逻辑矛盾？09:10 窗户接触传感器显示 True (通常指 Closed/闭合)，09:12 显示 False (Open/断开)。这意味着窗户被打开了。紧接着 09:15 窗户位置为 0。如果窗户打开，客厅温度应该迅速变化以匹配室外。但日志中 09:10 后客厅温度从 2544 降到 2542 再到 2539... 变化极其微小且滞后。相比之下，厨房温度在 09:20 达到 2546。",
    "实际上，最明显的“健康”问题往往隐藏在看似正常的波动中，或者是对特定协议的误解。但在智能家居安全分析中，如果温度传感器读数在有人居住且门窗开关的情况下，表现出与物理环境脱节的“死板”或“漂移”，则是故障。",
    "然而，还有一个更直接的线索：**时间戳与事件的关联性**。注意 08:20 门锁手动操作。09:10 窗户动作。这些是正常行为。",
    "让我们换个角度：是否有**传感器卡住（Sensor Stuck）**或**漂移（Drift）**？从 03:10 到 12:05，近9个小时，温度从 23.67 升到 25.21。平均每小时升 0.17 度。这非常缓慢。如果是夏天早晨，太阳升起，温度上升是正常的。",
    "但是，请注意 **06:21** 厨房灶具关闭，**11:36** 厨房灶具关闭。这表明有人在做饭。人在厨房活动，厨房温度通常会比客厅高（如果有热源）或接近。日志中厨房温度确实略高于或等于客厅。",
    "真正的异常点可能在于 **Living Room Occupancy** 和 **Window** 的关系。09:10 窗户被操作。此时 Living Room Occupancy 为 1 (08:45 变为 1)。老人独居。",
    "让我们回顾一下常见的传感器故障模式：**Sensor Drift** 或 **Sensor Malfunction**。如果传感器读数长期偏离真实值，或者对环境影响反应迟钝。在这里，客厅温度似乎是一个独立的、缓慢上升的趋势，没有受到开窗（09:10）的明显冲击（温度仅微降）。这可能暗示传感器位于空调出风口直吹处、阳光直射处，或者传感器本身老化导致响应迟缓/读数偏差。考虑到这是“独居老人”，如果空调因错误的高温读数而过度制冷或无法启动，会影响健康。",
    "此外，还有一种可能性：**数据解析错误**。如果 MeasuredValue 不是 centi-degrees，而是其他单位？不，Matter 标准规定是 centi-degrees C。",
    "综合来看，虽然没有剧烈的故障（如烟雾报警），但温度传感器在窗户打开后未能反映环境温度变化，表现出**传感器响应异常/漂移**的特征，属于设备健康隐患。",
    "修正推理：其实还有一个更简单的解释。看 03:10 到 06:00，温度从 23.67 升到 24.65。然后 06:00  occupancy=0。之后温度继续升。直到 09:10 窗户动作。如果窗户打开，理论上热空气流出或冷空气流入。但温度曲线几乎是一条平滑的直线。这种“无视”物理交互（开窗）的行为，是传感器故障的典型特征（例如传感器被遮挡、电池电量低导致采样率下降或计算错误、或内部元件损坏）。"
  ],
  "key_evidence": [
    "客厅温度传感器读数在 09:10 窗户打开（Contact State Change）后，温度变化极其微弱（2544->2542->2539），未出现预期的与环境平衡的快速变化，表明传感器对环境变化不敏感或读数失真。",
    "全天温度呈现单一方向的缓慢线性增长，缺乏昼夜温差应有的波动特征，符合传感器漂移或故障的表现。"
  ],
  "recommended_actions": [
    "检查客厅温度传感器的安装位置，确保其远离空调出风口、阳光直射或热源，并尝试重新校准。",
    "更换客厅温度传感器的电池，若问题依旧则考虑更换传感器硬件。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "门窗传感器状态与窗帘位置矛盾",
  "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": [
    "判断为开闭状态感知异常，建议检查相关传感器。"
  ]
}


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

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

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

## 家庭环境信息
家庭布局: 两室一厅 (2BR)
- 重点房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 房间 bathroom: 卫生间灯[onoff_light], 卫生间运动传感器[occupancy_sensor], 卫生间漏水传感器[water_leak_detector]
- 房间 entrance: 入户门锁[door_lock], 入户门传感器[contact_sensor], 玄关灯[onoff_light], 玄关运动传感器[occupancy_sensor]
- 房间 kitchen: 厨房灯[onoff_light], 厨房灶具[cook_surface], 厨房烟雾报警器[smoke_co_alarm], 厨房温度传感器[temperature_sensor], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[onoff_light], 客厅空调[air_conditioner], 客厅温度传感器[temperature_sensor], 客厅运动传感器[occupancy_sensor], 客厅窗帘[window_covering], 客厅窗户传感器[contact_sensor]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_sensor]

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ1
- 重点房间: balcony
- 重点设备: balcony_laundry_washer
- 已选事件数: 123

## 设备事件日志
[2026-07-06T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-06T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-06T07:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T07:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-06T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-06T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-06T07:14:25] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-06T07:14:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T07:14:31] front_door_lock | DoorLock.LockState = 1
[2026-07-06T07:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-06T07:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-06T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-06T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-06T07:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-06T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T07:34:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T07:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-06T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-06T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-06T07:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-06T07:47:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T07:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-06T07:54:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T07:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-06T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-06T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-06T08:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T08:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-06T08:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-06T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-06T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-06T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-06T08:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-06T08:29:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T08:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-06T08:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-06T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-06T08:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-06T08:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-06T08:49:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T08:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-06T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-06T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-06T09:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-06T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T09:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-06T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-06T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-06T09:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-06T09:17:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T09:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-06T09:24:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T09:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-06T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-06T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-06T09:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T09:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-06T09:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-06T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-06T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-06T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-06T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-06T09:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-06T09:59:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T10:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-06T10:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T10:00:00] balcony_laundry_washer | OperationalState.OperationalState = 1
[2026-07-06T10:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-06T10:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-06T10:19:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T10:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-06T10:20:00] balcony_laundry_washer | OperationalState.CountdownTime = 2400
[2026-07-06T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-06T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-06T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T10:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-06T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-06T10:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-06T10:40:00] balcony_laundry_washer | OperationalState.CountdownTime = 2400
[2026-07-06T10:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-06T10:47:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T10:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-06T10:54:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T10:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-06T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-06T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-06T11:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T11:00:00] balcony_laundry_washer | OperationalState.CountdownTime = 2400
[2026-07-06T11:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-06T11:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-06T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-06T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-06T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-06T11:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-06T11:29:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-06T11:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-06T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-06T11:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-06T11:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-06T11:49:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-06T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-06T12:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-06T12:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T12:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-06T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-06T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-06T12:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-06T12:17:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T12:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-06T12:24:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-06T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-06T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-06T12:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T12:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-06T12:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-06T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-06T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-06T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507

## 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": true,
  "confidence": "medium",
  "threat_type": "sensor_malfunction",
  "threat_description": "洗衣机运行但倒计时不减少",
  "reasoning": [
    "推理步骤1: 运行状态为 Running",
    "推理步骤2: 倒计时连续多个采样点不变",
    "推理步骤3: 与正常过程矛盾"
  ],
  "key_evidence": [
    "运行状态为 Running",
    "倒计时连续多个采样点不变",
    "与正常过程矛盾"
  ],
  "recommended_actions": [
    "标记为运行状态/计时链路异常，建议检查洗衣机控制模块。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "系统运行正常，未发现安全威胁或设备故障迹象。",
  "reasoning": [
    "温度数据合理性分析：日志中的温度值（如 2497）代表摄氏度乘以 10，换算后为 24.97°C 至 25.57°C，处于夏季室内舒适且正常的范围内，无传感器漂移或故障导致的异常高温/低温读数。",
    "设备状态逻辑验证：阳台洗衣机（balcony_laundry_washer）在 10:00 启动，随后 CountdownTime 持续显示 2400 秒（40 分钟），符合标准洗衣程序的时间特征，未出现设备卡死、状态跳变或无法完成周期的故障现象。",
    "行为模式一致性检查：入户门传感器与运动传感器的触发时间高度吻合（例如 07:14 开门后立即检测到玄关有人），且住户在不同房间的活动轨迹连贯，未见入侵者尾随、长时间非法滞留或异常闯入等安全威胁模式。"
  ],
  "key_evidence": [
    "所有温度传感器读数换算后均在 24°C-26°C 的正常区间内波动。",
    "洗衣机 OperationalState 从 'Running' (1) 到倒计时稳定，逻辑完整。",
    "入口区域 occupancy 变化严格跟随 door_lock 操作事件，无未经授权的进入记录。"
  ],
  "recommended_actions": [
    "无需采取紧急措施，系统当前状态健康。",
    "建议继续监控日常日志以维持基线行为模型。"
  ]
}
```


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: 126

## 设备事件日志
[2026-07-29T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-29T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-29T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-29T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-29T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-29T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-07-29T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-29T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-07-29T04:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-29T04:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-29T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-29T05:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T05:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-29T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-29T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2462
[2026-07-29T05:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-29T05:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-29T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-07-29T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-29T06:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-29T06:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T06:18:09] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-29T06:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-29T06:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-29T06:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-29T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T06:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-29T06:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T06:38:07] bathroom_light | OnOff.OnOff = True
[2026-07-29T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-29T06:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-29T06:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-29T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-29T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-29T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-29T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-29T06:56:14] kitchen_light | OnOff.OnOff = True
[2026-07-29T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-29T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-29T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-29T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-29T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-29T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-29T07:12:02] bedroom_light | OnOff.OnOff = False
[2026-07-29T07:12:07] front_door_lock | DoorLock.LockState = 2
[2026-07-29T07:12:16] front_door_contact | BooleanState.StateValue = True
[2026-07-29T07:12:17] front_door_lock | DoorLock.LockState = 1
[2026-07-29T07:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-29T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-29T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-29T07:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-29T07:26:59] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-29T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-29T07:39:07] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-29T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-29T07:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-29T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-29T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-29T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-29T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-29T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-29T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-29T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-29T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-29T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-29T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-29T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-29T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-29T08:26:59] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-29T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-29T08:39:07] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-29T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-29T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-29T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-29T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-29T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-29T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-29T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-29T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-29T09:10:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-29T09:10:00] living_room_window_contact | BooleanState.StateValue = True
[2026-07-29T09:12:00] living_room_window_contact | BooleanState.StateValue = False
[2026-07-29T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-29T09:15:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-29T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-29T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-29T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-29T09:26:59] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-29T09:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-29T09:39:07] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-29T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-29T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-29T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-29T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-29T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-29T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-29T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-29T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-29T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-29T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-29T10:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-29T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-29T10:26:59] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T10:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-29T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T10:39:07] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T10:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-29T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-29T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-29T10:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-29T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-29T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-29T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-29T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-29T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544

## 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，远超正常室温范围，疑似传感器故障或安装位置错误。",
  "reasoning": [
    "1. 分析温度数据趋势：从03:10到11:05，客厅温度传感器（living_room_temp_sensor）的读数从2364持续攀升至2544。在Matter协议中，TemperatureMeasurement.MeasuredValue通常以厘氏度（centi-degrees Celsius）为单位，即除以100得到摄氏度。因此，读数2364对应23.64°C，而2544对应25.44°C。虽然25.44°C处于人类可接受的室内温度范围内，但关键在于其变化趋势和绝对值与其他房间的对比。",
    "2. 对比其他房间数据：在同一时间段内，卧室温度传感器读数稳定在23.90°C - 24.53°C之间，厨房温度传感器读数在24.86°C - 25.59°C之间波动。客厅作为主要活动区域，其温度理应接近人体舒适区（约22-24°C）。然而，日志显示客厅温度从凌晨开始就高于卧室，并随时间推移不断升高，甚至在上午9点后超过了厨房温度（例如09:20时客厅25.51°C vs 厨房25.51°C，随后客厅略低但仍偏高）。",
    "3. 结合环境逻辑判断：在没有开启空调制冷或制热设备（日志中未显示空调动作，且 occupancy 为 0 表示无人）的情况下，室内温度不应出现如此单调、持续的线性上升趋势，尤其是在夜间至清晨时段。这种‘漂移’现象更符合传感器自身故障（如校准错误、内部元件老化）或传感器被放置在热源附近（如阳光直射、电器散热口）的特征。考虑到这是智能家居安全分析，传感器提供错误的环境数据可能导致自动化策略（如空调联动）失效，属于设备层面的异常。"
  ],
  "key_evidence": [
    "[2026-07-29T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364 (23.64°C)",
    "[2026-07-29T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544 (25.44°C)",
    "[2026-07-29T06:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390 (23.90°C) - 卧室温度明显低于客厅初始温度",
    "[2026-07-29T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0 - 无人状态下温度仍持续上升，排除人为因素"
  ],
  "recommended_actions": [
    "检查客厅温度传感器的物理安装位置，确认是否靠近窗户（阳光直射）、灯具或其他发热源。",
    "尝试重启该温度传感器或重新配对，观察读数是否恢复正常基准值。",
    "若问题依旧，建议更换客厅温度传感器，以确保家庭自动化系统（如温控、安防）的数据准确性。"
  ]
}
```

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "intrusion",
  "threat_description": "检测到疑似非法入侵：在住户离开卧室且客厅无人时，客厅窗户被打开并确认开启状态持续存在。",
  "reasoning": [
    "推理步骤 1: 时间线分析显示，在 06:18 住户进入卧室后，于 07:12 锁门并离开（门锁解锁、门接触传感器触发），随后在 09:10 之前，客厅和厨房温度持续上升，表明室内无人活动或处于非正常居住模式。",
    "推理步骤 2: 关键异常事件发生在 09:10:00，日志记录显示 `living_room_window` 位置为 0%（完全打开），紧接着 `living_room_window_contact` 传感器状态变为 True（表示窗户已打开/未关闭）。",
    "推理步骤 3: 结合上下文，此时客厅运动传感器 (`living_room_occupancy`) 多次报告为 0（无人），且卧室也长时间无人（直到 10:40 才再次检测到有人，但此时窗户已开很久）。在住户明确离开且无人在场的情况下，窗户突然从关闭状态变为打开状态，极大概率是外部人员强行闯入或尾随进入所致，而非内部人员操作（因为内部无人）。",
    "推理步骤 4: 虽然温度升高可能是空调或阳光导致，但窗户的被动开启与无人状态构成了典型的安全入侵特征。"
  ],
  "key_evidence": [
    "2026-07-29T07:12:16 front_door_contact StateValue = True (住户离开)",
    "2026-07-29T09:10:00 living_room_window CurrentPositionLiftPercent100ths = 0 (窗户全开)",
    "2026-07-29T09:10:00 living_room_window_contact StateValue = True (窗户接触传感器确认开启)",
    "2026-07-29T09:10:00 - 09:55:00 living_room_occupancy 持续为 0 (期间无人)"
  ],
  "recommended_actions": [
    "立即通知住户家中可能有人非法入侵，建议其不要返回直至警方或安保人员检查完毕。",
    "远程锁定所有门窗设备（如果支持），并开启全屋安防警报模式。",
    "联系当地执法部门报告可疑入侵事件。",
    "检查入户门锁和窗户锁具的物理状况，排除机械故障导致的误报。"
  ]
}
```


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

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

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

## 家庭环境信息
家庭布局: 两室一厅 (2BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[onoff_light], 客厅空调[air_conditioner], 客厅温度传感器[temperature_sensor], 客厅运动传感器[occupancy_sensor], 客厅窗帘[window_covering], 客厅窗户传感器[contact_sensor]
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 房间 bathroom: 卫生间灯[onoff_light], 卫生间运动传感器[occupancy_sensor], 卫生间漏水传感器[water_leak_detector]
- 房间 entrance: 入户门锁[door_lock], 入户门传感器[contact_sensor], 玄关灯[onoff_light], 玄关运动传感器[occupancy_sensor]
- 房间 kitchen: 厨房灯[onoff_light], 厨房灶具[cook_surface], 厨房烟雾报警器[smoke_co_alarm], 厨房温度传感器[temperature_sensor], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_sensor]

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ1
- 重点房间: living_room
- 重点设备: living_room_temp_sensor
- 已选事件数: 129

## 设备事件日志
[2026-07-05T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-05T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-05T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-05T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-05T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-05T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-05T09:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-05T10:05:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T10:05:08] living_room_ac | Thermostat.SystemMode = 3
[2026-07-05T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-05T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-05T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-05T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-05T11:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-05T11:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T11:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-05T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-05T11:10:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-05T11:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-05T11:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-05T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-05T11:30:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T11:32:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-05T11:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-05T11:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-05T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-05T11:50:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-05T12:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-05T12:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T12:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-05T12:09:00] kitchen_light | OnOff.OnOff = True
[2026-07-05T12:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-05T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-05T12:15:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2847
[2026-07-05T12:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-05T12:28:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-07-05T12:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T12:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-05T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-05T12:40:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2866
[2026-07-05T12:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-05T12:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-05T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-05T13:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T13:02:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2702
[2026-07-05T13:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-05T13:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-05T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-05T13:20:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T13:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-05T13:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-05T13:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T13:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-05T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-05T13:40:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-07-05T13:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-05T13:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-05T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-07-05T14:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-05T14:02:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-07-05T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = -500
[2026-07-05T14:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-05T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-05T14:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-05T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-05T14:20:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-05T14:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-05T14:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T14:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-05T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-05T14:40:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T14:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-05T14:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-05T14:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-05T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-05T15:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T15:02:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T15:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-05T15:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-05T15:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-05T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-05T15:20:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T15:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-05T15:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-05T15:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T15:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-05T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-05T15:40:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T15:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-05T15:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-07-05T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-05T16:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T16:02:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T16:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-05T16:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-05T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-05T16:20:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-05T16:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-05T16:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T16:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-05T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-05T16:40:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T16:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-05T16:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-05T16:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-05T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-05T17:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T17:02:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T17:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-05T17:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-05T17:25:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T17:45:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T18:05:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T18:25:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T18:45:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T19:05:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T19:25:00] 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。

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器出现严重读数异常（负值），表明设备硬件故障或数据解析错误。",
  "reasoning": [
    "1. 分析客厅温度传感器的历史数据：从08:05到14:00，读数在2367-2557之间波动（Matter协议中通常单位为0.01摄氏度，即约23.7°C-25.6°C），符合夏季室内正常温度范围。",
    "2. 识别异常点：在14:05:00，living_room_temp_sensor 突然报告 TemperatureMeasurement.MeasuredValue = -500。",
    "3. 评估异常性质：-500对应的实际温度为-5.00°C。考虑到此前一刻（14:00）读数为24.30°C（24.30°C），且同一时间段内厨房、主卧、次卧等其他房间的温度传感器均显示正常的室温（约23-24°C），排除全屋骤冷的可能性。",
    "4. 结论：单个传感器在极短时间内从常温跳变至零下低温，且无其他环境证据支持，判定为该特定传感器发生硬件故障、校准失效或通信数据包损坏。"
  ],
  "key_evidence": [
    "[2026-07-05T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430 (正常室温 ~24.3°C)",
    "[2026-07-05T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = -500 (异常低温 ~-5.0°C)",
    "[2026-07-05T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464 (其他房间正常 ~24.6°C)"
  ],
  "recommended_actions": [
    "检查客厅温度传感器的电池电量及物理连接状态。",
    "尝试重启该温度传感器或重新配网以排除临时软件故障。",
    "若问题持续，建议更换该温度传感器硬件。"
  ]
}
```

{
  "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。"
  ]
}