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_ac, living_room_temp_sensor
- 已选事件数: 137

## 设备事件日志
[2026-08-20T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-08-20T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-20T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-20T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-20T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-20T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-20T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-20T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-20T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-20T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-20T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T10:03:11] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-20T10:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-20T10:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-20T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-20T10:20:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-20T10:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-20T10:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T10:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-20T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-20T10:40:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-20T10:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-20T10:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-20T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-20T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T11:03:11] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-20T11:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-20T11:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-20T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-20T11:20:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-20T11:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-20T11:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T11:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-20T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-20T11:40:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-20T11:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-20T11:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-20T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-20T12:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T12:03:11] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-20T12:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-20T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-20T12:20:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-20T12:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-20T12:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T12:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-20T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-20T12:40:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-20T12:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-20T12:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-20T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-20T13:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T13:00:00] living_room_ac | OnOff.OnOff = True
[2026-08-20T13:03:11] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-08-20T13:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-20T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920
[2026-08-20T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-08-20T13:20:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T13:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-08-20T13:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-20T13:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T13:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-08-20T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2940
[2026-08-20T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-20T13:40:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-20T13:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-20T13:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-20T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2960
[2026-08-20T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-08-20T14:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T14:03:11] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-08-20T14:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-08-20T14:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-08-20T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-20T14:20:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-08-20T14:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2462
[2026-08-20T14:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T14:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-20T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-20T14:40:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T14:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-20T14:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-20T14:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-20T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-20T15:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T15:03:11] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T15:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-20T15:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-20T15:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-08-20T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-20T15:20:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T15:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-20T15:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-20T15:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T15:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-20T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-20T15:40:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-20T15:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-08-20T15:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-20T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-20T16:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T16:03:11] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T16:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-08-20T16:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-20T16:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-20T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-20T16:20:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-20T16:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-20T16:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T16:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-08-20T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-20T16:40:19] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T16:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-20T16:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-20T16:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-08-20T17:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-20T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-20T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-20T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-08-20T18:10:21] living_room_ac | Thermostat.SystemMode = 3

## 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": "客厅温度传感器出现间歇性极高读数异常，疑似硬件故障或数据上报错误。",
  "reasoning": [
    "1. 分析温度数据趋势：在2026-08-20的大部分时间里（07:05至13:15），客厅温度传感器读数在2500-2550之间波动（对应约25.0°C-25.5°C），与其他房间（厨房、卧室）的温度趋势一致，符合夏季室内正常升温规律。",
    "2. 识别异常点：在13:15、13:35和13:55三个时间点，客厅温度传感器突然上报了2920、2940、2960的数值（对应约29.2°C-29.6°C）。",
    "3. 排除环境因素：尽管空调在13:00开启，但随后其他所有房间的温度传感器均显示温度持续下降（从~25°C降至~23°C以下），表明整体环境温度正在降低。如果客厅真的升至近30°C，这与其他区域的热力学状态严重不符，且没有伴随门窗打开等导致局部高温的事件记录。",
    "4. 确认故障模式：异常读数呈现“尖峰”状，随后立即恢复正常值（如13:20回到2497），这种非物理性的瞬时跳变是典型的传感器电子故障、校准漂移或通信数据包损坏的特征，而非真实的环境变化。"
  ],
  "key_evidence": [
    "[2026-08-20T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2920 (其他房间此时约为25°C)",
    "[2026-08-20T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2940 (其他房间此时约为24.8°C)",
    "[2026-08-20T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2960 (其他房间此时约为24.7°C)",
    "[2026-08-20T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497 (异常后迅速恢复)"
  ],
  "recommended_actions": [
    "检查客厅温度传感器的电池电量及连接状态，尝试重启设备。",
    "对比同一时间段内空调温控器的内部传感器读数，若差异巨大，则确认为传感器硬件故障，建议更换。",
    "暂时忽略该传感器的自动温控逻辑，改用手动控制或依赖其他房间的平均温度进行空调调节，直到修复完成。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "空调运行但温度不下降",
  "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": [
    "判断为空调侧制冷失效或相关传感异常，建议检修。"
  ]
}


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: 125

## 设备事件日志
[2026-07-24T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-24T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-24T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-24T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-24T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-24T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-24T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-24T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-24T04:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-24T04:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-24T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-24T05:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T05:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-24T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-24T05:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-24T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-24T05:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-24T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-07-24T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-24T06:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-24T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-24T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-24T06:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-24T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-24T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-24T06:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T06:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T06:34:11] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-24T06:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-24T06:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-07-24T06:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-24T06:46:10] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-24T06:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-24T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-24T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-24T07:09:00] bathroom_light | OnOff.OnOff = False
[2026-07-24T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-24T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-24T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-24T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-24T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-24T07:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-24T07:30:00] kitchen_light | OnOff.OnOff = False
[2026-07-24T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-24T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T07:30:21] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-24T07:30:23] front_door_contact | BooleanState.StateValue = False
[2026-07-24T07:30:27] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-07-24T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-24T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-24T07:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-24T07:40:20] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T07:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-24T07:48:20] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T07:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-24T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-24T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-24T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-24T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-24T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-24T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-24T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-24T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-24T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-24T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-24T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-24T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-24T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-24T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-24T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-24T08:40:20] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-24T08:48:20] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-24T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-24T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-24T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-24T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-24T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-24T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-24T09:10:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-24T09:10:00] living_room_window_contact | BooleanState.StateValue = True
[2026-07-24T09:12:00] living_room_window_contact | BooleanState.StateValue = False
[2026-07-24T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-24T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-24T09:15:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-24T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-24T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-24T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-24T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-24T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-24T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-24T09:40:20] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-24T09:48:20] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-24T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-24T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-24T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-24T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-24T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-24T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-24T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-24T10:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-24T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-24T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-24T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-24T10:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-24T10:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-24T10:40:20] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-24T10:48:20] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T10:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-24T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-24T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-24T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-24T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434

## 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数值格式疑似错误（单位或精度问题），导致系统记录的温度值远超正常室温范围。",
  "reasoning": [
    "1. 分析温度数据量级：日志中 `living_room_temp_sensor` 的 `MeasuredValue` 在 2375 到 2559 之间波动。根据 Matter 协议标准，TemperatureMeasurement Cluster 的 MeasuredValue 通常以厘氏度（centi-degrees Celsius）为单位，即实际温度 = 测量值 / 100。若按此标准，2375 代表 23.75°C，这是非常正常的室内温度。",
    "2. 识别潜在异常模式：然而，题目重点标记了 `living_room_window` 和 `living_room_window_contact`，暗示需关注环境变化对设备的影响。观察发现，当窗户状态发生变化时（如 09:10 打开，09:12 关闭），温度读数并未出现符合物理规律的剧烈波动（如开窗后迅速降温）。相反，温度读数呈现缓慢、线性的上升趋势（从早晨的 ~24°C 升至上午的 ~25.5°C），这符合夏季清晨自然升温的物理规律。",
    "3. 关键矛盾点与误报排除：虽然 2375-2559 的数值本身作为“厘氏度”是合理的，但结合任务类型 SQ1 和重点关注窗户传感器的设定，我们需要检查是否有其他解释。注意看 06:34 卧室窗帘打开，随后卧室温度稳定在 23-24°C 左右。而客厅温度持续上升。如果假设这些数值不是厘氏度而是直接摄氏度（即 2375°C），那显然是传感器故障。但在智能家居语境下，更常见的“异常”是指**传感器漂移**或**读数逻辑错误**。",
    "4. 重新审视数据一致性：对比厨房温度传感器，其读数也在 2475-2558 之间，与客厅高度同步。这表明全屋环境温度确实在升高。但是，请注意 09:10 时刻，`living_room_window` 被打开（CurrentPositionLiftPercent100ths = 0 表示完全打开，因为 LiftPercent 0 通常指全开，或者取决于具体实现，这里假设 0 为开，10000 为关，或者反之。通常 Window Covering 中 0% lift 是全开，100% lift 是全关。日志显示 06:34 卧室窗帘也是 0，随后有人起床活动，符合早晨场景）。",
    "5. 核心判断依据 - 传感器故障/漂移迹象：尽管温度数值在物理上可能合理（23-25°C），但题目要求评估“目标设备当前工作状态”。在许多智能安防场景中，如果温度传感器读数长期保持在一个非零的固定偏移量，或者读数更新频率异常（此处每10分钟一次，较稀疏），可能被判定为需要校准。然而，最明显的异常在于**数值本身的合理性存疑**。如果这是一个标准的 Matter 设备，2375 代表 23.75°C 是完全正常的。**但是**，如果我们仔细看 09:10 的窗户事件：`living_room_window` 位置变为 0（全开），紧接着 `living_room_window_contact` 变为 True（关闭？通常 Contact Sensor True 表示 Closed，False 表示 Open，或者反之，取决于配置。Matter Contact Sensor 通常 StateValue=True 表示 Closed/Secure，False 表示 Open/Insecure）。",
    "6. 修正推理路径：让我们看 09:10-09:12 的事件链。09:10 窗户打开（Lift=0），Contact=True。09:12 Contact=False。这意味着窗户在2秒内从“开”变为了“关”？或者接触传感器逻辑是反的？如果 Contact=True 是 Open（不常见），那么窗户开了2秒就关了。这种极短时间的开关操作，且没有伴随 occupancy 变化（客厅 occupancy 一直为 0），极有可能是**窗户接触传感器故障**或**误触发**。此外，如果 Contact Sensor 的逻辑是 True=Closed，那么 09:10 窗户开着（Lift=0）却报告 Closed (True)，这是典型的**传感器状态不一致/故障**。",
    "7. 综合结论：主要威胁并非温度本身（23-25度正常），而是窗户传感器在窗户物理开启（Lift=0）时报告了错误的接触状态（True，通常意为闭合/安全），且在短时间内状态跳变。这属于传感器故障。"
  ],
  "key_evidence": [
    "09:10:00 living_room_window CurrentPositionLiftPercent100ths = 0 (物理上通常表示完全打开)",
    "09:10:00 living_room_window_contact BooleanState.StateValue = True (通常表示门/窗处于关闭/锁定状态)",
    "09:12:00 living_room_window_contact BooleanState.StateValue = False (状态瞬间跳变为打开/未锁定)",
    "在此期间客厅 Occupancy 始终为 0，无人活动，排除了人为快速开关的可能性"
  ],
  "recommended_actions": [
    "检查客厅窗户接触传感器的安装位置和磁铁对齐情况，确认是否因松动导致误报。",
    "验证 Matter 协议中 Contact Sensor 的 StateValue 定义（True/False 对应 Open/Closed），并在应用层进行逻辑映射校正。",
    "如果硬件无松动，建议更换该接触传感器模块。"
  ]
}
```

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "intrusion",
  "threat_description": "检测到疑似入侵行为：住户在卧室有人时离开，随后客厅窗户被打开且接触传感器状态异常翻转，同时室内温度持续异常升高。",
  "reasoning": [
    "推理步骤 1: 时间线分析显示，06:34 卧室有人（Occupancy=1），但在 07:30 左右住户出门（门锁操作 + 门接触传感器变 False）。",
    "推理步骤 2: 在 09:10，客厅窗户位置传感器报告完全打开 (LiftPercent=0)，紧接着在 09:12 窗户接触传感器状态从 True (关闭) 变为 False (打开)。这种先开窗帘/窗盖再触发接触传感器的顺序符合人为开窗逻辑，而非自然风力导致的误报。",
    "推理步骤 3: 最关键的异常是温度数据。从 03:10 到 11:05，客厅温度从正常的 23.75°C 持续线性上升至 25.59°C（注意日志单位为 0.01°C，即约 25.6°C）。虽然夏季升温正常，但结合‘无人居住’（04:00-09:00 间多次检测无 occupancy）和‘窗户被打开’的事实，若为正常通风，温度不应如此稳定地维持在较高水平且伴随其他房间温度同步缓慢爬升，更可能是入侵者进入后开启了热源（如空调或电器）或长时间滞留导致的热积聚，或者入侵者正在利用窗户进行非法活动。考虑到这是安全分析任务，‘无人状态下窗户被打开’本身即为高风险入侵指标。",
    "推理步骤 4: 综合判断，住户出门后，客厅窗户在非预期时间被打开，且室内环境参数出现与‘空房’状态不符的持续变化，高度怀疑存在非法闯入。"
  ],
  "key_evidence": [
    "09:10 living_room_window 位置变为 0% (全开)",
    "09:12 living_room_window_contact 状态由 True 变为 False (确认窗户开启)",
    "04:00 至 09:00 期间 living_room_occupancy 持续为 0 (无人)"
  ],
  "recommended_actions": [
    "立即通知住户家中可能有人非法闯入，建议其不要直接开门，而是通过视频通话确认门外情况。",
    "远程锁定所有门窗设备（如果支持），并检查入户门锁状态是否被篡改。",
    "联系当地警方或安保服务，提供入侵发生的时间段（09:10 左右）。",
    "检查厨房烟雾报警器和温度传感器，排除因入侵者使用明火或电器引发的火灾隐患。"
  ]
}
```


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。"
  ]
}
```