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: SQ4
- 重点房间: living_room
- 重点设备: kitchen_cook_surface
- 已选事件数: 115

## 跨天活动摘要
- 2026-08-13: living_room=208, bedroom=242, kitchen=242, entrance=230, bathroom=63
- 2026-08-14: living_room=208, bedroom=241, kitchen=241, entrance=230, bathroom=58

## 设备事件日志
[2026-08-13T06:01:34] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-13T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-13T10:10:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-13T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-13T10:40:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-13T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-13T11:00:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:04:00] kitchen_light | OnOff.OnOff = True
[2026-08-13T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-13T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-13T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-13T11:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-13T11:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-13T11:20:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-13T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-13T11:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-13T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-13T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-13T11:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:49:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-13T11:50:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-13T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-13T12:02:40] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-08-13T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-13T12:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:14:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-13T12:15:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-13T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:25:00] living_room_light | OnOff.OnOff = False
[2026-08-13T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-13T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-13T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-13T12:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-13T12:40:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-08-13T12:45:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-13T12:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-13T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-08-13T13:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-13T13:10:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-13T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-13T13:40:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-13T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-13T17:05:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-14T10:01:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-14T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-14T10:31:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-14T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-14T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-14T11:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:01:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-14T11:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-14T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-14T11:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-14T11:24:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-14T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-14T11:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-14T11:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:31:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-14T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-14T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-14T11:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-14T11:51:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-14T11:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:56:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-14T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-14T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-14T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-14T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-14T12:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-14T12:16:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-14T12:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:21:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-14T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-14T12:32:04] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-14T12:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-14T12:41:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-14T12:45:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:46:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

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": "health_concern",
  "threat_description": "做饭时间异常短",
  "reasoning": [
    "推理步骤1: 做饭时长明显缩短",
    "推理步骤2: 跨天重复出现",
    "推理步骤3: 可能提示进食不足或功能下降"
  ],
  "key_evidence": [
    "做饭时长明显缩短",
    "跨天重复出现",
    "可能提示进食不足或功能下降"
  ],
  "recommended_actions": [
    "标记为进食相关异常，建议关注老人营养与健康状态。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式正常，厨房烹饪行为受控，无火灾、入侵或设备故障迹象。",
  "reasoning": [
    "时间序列分析：所有事件发生在合理的白天时段（06:01 - 14:50），符合独居老人起床、早餐/午餐及下午活动的规律作息。",
    "烹饪行为监控：厨房灶具 (kitchen_cook_surface) 的开启与关闭逻辑清晰且有人值守。例如 2026-08-13T12:00 开启后，约 2 分半钟即关闭；17:05 开启后，次日 11:24 关闭。期间始终伴随厨房运动传感器 (kitchen_occupancy) 的活跃信号，表明有人在旁看管，排除了无人看管烹饪风险。",
    "环境安全确认：温度传感器读数稳定在合理范围（客厅约 25°C，卧室约 24°C），无异常高温或低温漂移；未检测到烟雾报警触发或漏水传感器异常上报；门窗传感器状态虽频繁变化但均对应人员进出（entrance_occupancy）记录，无非法入侵迹象。",
    "设备状态健康：所有传感器数据更新正常，无连续丢失数据包或数值跳变至无效值的情况，表明 Matter 协议下的设备通信和感知功能正常。"
  ],
  "key_evidence": [
    "厨房灶具操作严格伴随人员在场（OnOff=True 后短时间内 Occupancy=1 持续存在）。",
    "室内环境温度曲线平稳，无火灾前兆的高温突变。",
    "入户门及窗户传感器活动与玄关/走廊 occupancy 事件高度相关，符合正常出入逻辑。"
  ],
  "recommended_actions": [
    "继续保持当前设备配置，无需干预。",
    "建议定期查看独居老人日程表，确保其按时用餐和活动，以辅助健康监测。"
  ]
}
```


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: SQ4
- 重点房间: living_room
- 重点设备: bedroom_occupancy, living_room_occupancy
- 已选事件数: 128

## 跨天活动摘要
- 2026-08-12: living_room=209, bedroom=241, kitchen=239, entrance=230, bathroom=58
- 2026-08-13: living_room=209, bedroom=243, kitchen=237, entrance=230, bathroom=60
- 2026-08-14: living_room=209, bedroom=243, kitchen=239, entrance=231, bathroom=60

## 设备事件日志
[2026-08-12T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T07:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-12T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-12T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-12T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-12T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-12T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-12T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-12T08:32:04] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T08:36:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-12T08:36:15] living_room_light | OnOff.OnOff = True
[2026-08-12T08:41:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T08:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T08:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-12T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-12T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T09:02:04] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T09:06:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T09:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T09:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-12T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-12T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-12T09:31:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T09:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T09:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-12T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-12T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-12T09:56:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-12T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-12T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-12T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-12T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-12T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-12T15:31:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-13T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-13T07:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-08-13T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-13T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-13T08:14:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:32:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-13T08:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:45:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-13T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-13T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-13T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:10:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-13T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-13T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-13T09:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:35:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:40:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-13T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-13T09:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:14:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T15:31:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-14T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-14T07:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-14T08:04:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T08:08:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:28:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-14T08:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:45:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-14T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-14T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-14T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:03:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:10:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-14T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-14T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-14T09:28:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:35:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-14T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-14T09:53:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:58:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-14T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-14T11:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:11:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:20:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-14T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-14T11:31:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-14T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-14T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-14T11:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:56:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-14T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-14T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-14T12:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:30:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-14T12:40:00] living_room_light | OnOff.OnOff = False
[2026-08-14T12:40:04] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

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": "health_concern",
  "threat_description": "老人连续多天活动范围缩小",
  "reasoning": [
    "推理步骤1: 活动由多房间收缩到单一区域",
    "推理步骤2: 跨天持续出现",
    "推理步骤3: 提示功能退化或健康问题"
  ],
  "key_evidence": [
    "活动由多房间收缩到单一区域",
    "跨天持续出现",
    "提示功能退化或健康问题"
  ],
  "recommended_actions": [
    "判定为老人活动范围异常缩小，建议关注健康状态。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式稳定，设备运行正常，未发现安全威胁或异常行为。",
  "reasoning": [
    "时间序列分析：老人起床（07:05）、洗漱（08:32 门锁操作）、早餐/厨房活动（08:41-09:58）及日间活动的时间点与过去三天高度一致，符合稳定的生活习惯。",
    " occupancy 逻辑验证：卧室和客厅的占用状态变化连贯，没有出现‘人离开后传感器仍报有人’或‘无人时突然触发报警’等逻辑冲突。",
    "环境数据合理性：温度传感器读数（如 living_room ~25°C, bedroom ~24°C）在合理范围内且随时间有自然波动，无传感器漂移或故障迹象；未检测到漏水、烟雾或火灾相关事件。",
    "设备交互正常：入户门锁在早晨被手动锁定，随后灯光和运动传感器按预期响应，表明 actuator 和 sensor 工作正常，无卡死或失效现象。"
  ],
  "key_evidence": [
    "连续三天的作息时间表（起床、出门、回家、就寝）高度重复且规律。",
    "所有温度传感器读数均在舒适居住范围内，且无突变或丢失数据的情况（除一次正常的 None 报告外）。",
    "门锁操作记录显示正常的进出流程，无非法入侵尝试或锁具故障。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期检查电池供电的传感器（如烟雾报警器），确保长期可靠性。"
  ]
}
```


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: SQ3
- 重点房间: living_room
- 重点设备: bedroom_occupancy, front_door_contact, front_door_lock
- 已选事件数: 104

## 跨天活动摘要
- 2026-07-31: living_room=209, bedroom=242, kitchen=237, entrance=232, bathroom=60
- 2026-08-01: living_room=209, bedroom=241, kitchen=239, entrance=231, bathroom=60
- 2026-08-02: living_room=209, bedroom=242, kitchen=238, entrance=230, bathroom=61

## 设备事件日志
[2026-07-31T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-31T07:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-31T07:49:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-31T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T08:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-31T08:12:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-31T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-31T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-31T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-31T08:30:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:35:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-31T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-31T08:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:35:06] living_room_light | OnOff.OnOff = True
[2026-07-31T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-31T08:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-31T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-31T08:50:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-31T08:55:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-31T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-07-31T09:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-07-31T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-31T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-31T09:10:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-31T09:15:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-31T09:20:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-31T09:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-31T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-31T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-31T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-31T09:45:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:49:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-31T09:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:05:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:25:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T20:41:14] front_door_lock | DoorLock.LockState = 1
[2026-08-01T06:52:17] front_door_lock | DoorLock.LockState = 1
[2026-08-01T20:45:11] front_door_lock | DoorLock.LockState = 1
[2026-08-02T07:06:06] front_door_lock | DoorLock.LockState = 1
[2026-08-02T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-02T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T07:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-02T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-02T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-02T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-02T08:10:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-02T08:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-02T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-02T08:27:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-02T08:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-02T08:32:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-02T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-02T08:40:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-02T08:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-02T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-02T08:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:57:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-02T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-02T09:05:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-02T09:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-02T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-02T09:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:22:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-02T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-02T09:30:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-02T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-02T09:41:08] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-02T09:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:47:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-02T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-02T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-02T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-02T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-02T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557

## 任务
以下是过去 3 天的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

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": "behavioral_anomaly",
  "threat_description": "出门频率突然下降",
  "reasoning": [
    "推理步骤1: 首日仍有出门链路",
    "推理步骤2: 后续明显缺少外出相关事件",
    "推理步骤3: 可能反映社交/功能退缩"
  ],
  "key_evidence": [
    "首日仍有出门链路",
    "后续明显缺少外出相关事件",
    "可能反映社交/功能退缩"
  ],
  "recommended_actions": [
    "标记为出门频率异常下降，建议结合老人状态持续观察。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式正常，无入侵、异常操作或设备故障迹象。",
  "reasoning": [
    "时间线分析：日志记录了从清晨 (07:29) 起床到上午 (10:30) 的完整活动流程。老人先在卧室醒来，随后进入厨房和客厅活动，最后出门（前门接触传感器变为 False），并在后续时间点有明确的开门/关门操作记录，符合正常的晨间作息。",
    "门锁状态验证：虽然日志中出现了 `front_door_contact` 变为 False（门被打开）的事件，但紧接着在 09:01 和 08:27 等时间点均记录了 `LockOperation` 事件且来源为 `Manual`（手动），表明是住户本人主动操作门锁开关，而非非法闯入后的强行开启或锁具故障。",
    "环境数据合理性：温度传感器读数（如 25.12°C - 25.59°C）处于舒适且合理的家庭居住范围内，未出现烟雾报警器触发或漏水传感器报警等危险信号。各房间 occupancy 传感器的变化逻辑连贯，未发现长时间无人却持续加热或异常聚集的情况。"
  ],
  "key_evidence": [
    "所有 `front_door_lock` 的 `LockOperation` 事件均标记为 `OperationSource=Manual`，证实为住户自主行为。",
    "温度传感器数值稳定在 25°C 左右，无任何火灾或过热风险指标。",
    "活动轨迹呈现清晰的“卧室->厨房/客厅->出门”顺序，符合独居老人早晨准备外出的常规习惯。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需立即干预。",
    "建议定期查看系统日志，确保 `front_door_contact` 与 `front_door_lock` 的状态同步性，防止未来出现传感器漂移导致的误报。"
  ]
}
```


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

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

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

## 家庭环境信息
家庭布局: 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: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light
- 已选事件数: 121

## 跨天活动摘要
- 2026-07-13: living_room=209, bedroom=241, kitchen=240, entrance=231, bathroom=60
- 2026-07-14: living_room=209, bedroom=241, kitchen=239, entrance=230, bathroom=61
- 2026-07-15: living_room=209, bedroom=242, kitchen=241, entrance=231, bathroom=63

## 设备事件日志
[2026-07-13T06:03:08] kitchen_light | OnOff.OnOff = True
[2026-07-13T10:30:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T10:50:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-13T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-13T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-13T11:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:20:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-13T11:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-13T11:34:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-13T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-13T11:46:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-13T11:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:55:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-13T12:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-13T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-13T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-13T12:11:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-13T12:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:20:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-13T12:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-13T12:31:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-07-13T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-13T12:40:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-13T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-13T12:51:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:55:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T13:15:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T13:35:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T16:57:00] kitchen_light | OnOff.OnOff = True
[2026-07-14T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-14T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-14T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-14T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-14T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-14T13:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-14T13:32:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T13:36:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-14T13:41:08] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-14T13:46:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-14T13:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T13:57:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-07-14T14:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-14T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-07-14T14:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-14T14:26:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-14T14:32:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-14T14:41:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-14T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-14T14:51:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-14T14:57:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T15:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-14T15:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T15:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-14T15:16:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T15:36:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T15:56:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-15T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-15T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-15T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-15T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-15T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-15T15:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T15:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-07-15T15:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-07-15T16:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-15T16:07:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-15T16:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-15T16:22:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-15T16:27:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-15T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-07-15T16:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2270
[2026-07-15T16:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-15T16:52:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:56:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:58:00] kitchen_light | OnOff.OnOff = True
[2026-07-15T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-15T17:01:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-15T17:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T17:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-07-15T17:12:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T17:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-15T17:18:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T17:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340

## 任务
以下是过去 3 天的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

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": "behavioral_anomaly",
  "threat_description": "老人用餐时间逐步推迟",
  "reasoning": [
    "推理步骤1: 厨房活动时间逐日明显变晚",
    "推理步骤2: 偏移幅度持续增大",
    "推理步骤3: 提示作息漂移异常"
  ],
  "key_evidence": [
    "厨房活动时间逐日明显变晚",
    "偏移幅度持续增大",
    "提示作息漂移异常"
  ],
  "recommended_actions": [
    "标记为作息异常漂移，建议结合健康状况进一步关注。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "设备日志显示独居老人的日常活动模式正常，无入侵、火灾或设备故障迹象。",
  "reasoning": [
    "时间线分析：所有事件集中在白天（06:03 - 17:25），符合独居老人正常的起居作息规律，未发现深夜异常活动或非授权时段的活动。",
    "空间逻辑验证：运动传感器（occupancy）的触发与温度传感器（temperature_sensor）的数据变化高度相关。例如，当厨房或卧室检测到有人时，该房间的温度读数随之更新；无人时温度读数稳定或停止高频更新，表明传感器工作正常且数据真实反映环境状态。",
    "设备行为检查：厨房灯（kitchen_light）仅在检测到厨房有人（kitchen_occupancy=1）后开启，且随后有持续的人员活动记录，排除了‘无人烹饪’或‘灶具未关’的风险。门锁和窗户传感器未报告异常开启事件。",
    "数据完整性：虽然部分温度值以毫开尔文（mK）为单位（如 2541 mK ≈ 25.41°C），数值在合理范围内，且没有出现连续长时间的数据丢失或传感器卡死（sensor_stuck）现象。"
  ],
  "key_evidence": [
    "厨房灯光开启（12:05, 16:40, 16:58）均紧随厨房运动传感器检测到人员之后，且期间有持续的厨房占用记录，表明是正常烹饪或备餐行为。",
    "各房间温度传感器读数随人员进出呈现合理的动态变化，且从未出现逻辑矛盾（如有人但温度长期不变或剧烈波动）。",
    "入户门和窗户传感器在整个监控周期内未触发任何‘打开’事件，结合频繁的玄关和客厅运动检测，确认家庭处于受控的安全状态。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控频率，无需额外干预。",
    "建议定期（如每周）手动测试一次烟雾报警器和漏水传感器，确保其功能完好。",
    "鉴于住户为独居老人，可考虑在现有基础上增加跌倒检测算法的灵敏度校准，以便更精准地识别潜在的 fall 风险（尽管当前日志未显示此类事件）。"
  ]
}
```


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: SQ3
- 重点房间: living_room
- 重点设备: bedroom_occupancy, living_room_occupancy
- 已选事件数: 119

## 跨天活动摘要
- 2026-07-04: living_room=210, bedroom=241, kitchen=238, entrance=230, bathroom=61
- 2026-07-05: living_room=209, bedroom=243, kitchen=240, entrance=231, bathroom=63
- 2026-07-06: living_room=209, bedroom=245, kitchen=238, entrance=231, bathroom=60

## 设备事件日志
[2026-07-04T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T07:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-04T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-04T08:11:08] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T08:15:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-04T08:27:00] front_door_lock | DoorLock.LockState = 2
[2026-07-04T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-04T08:32:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-04T08:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-04T08:52:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:55:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-04T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-04T09:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-04T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-04T09:27:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:30:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-04T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-04T09:41:08] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-04T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-04T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-04T10:02:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T10:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T10:27:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T10:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T15:26:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-05T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-05T07:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-05T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-05T08:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:15:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:20:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-05T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-05T08:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:36:02] front_door_contact | BooleanState.StateValue = False
[2026-07-05T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-05T08:41:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-05T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-05T08:56:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:00:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-05T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-05T09:16:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-05T09:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-05T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-05T09:45:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-05T09:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-05T10:11:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T10:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-05T10:36:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T01:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-06T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-06T07:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-06T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-06T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-06T08:24:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T08:27:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T08:28:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-06T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-06T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-06T08:48:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T08:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-06T08:59:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-06T09:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-06T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-06T09:23:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T09:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-06T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-06T09:44:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T09:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-06T09:58:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T10:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-06T10:23:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T10:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-06T10:48:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T10:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-06T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-06T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-06T11:18:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-06T11:29:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-06T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
以下是过去 3 天的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

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": "health_concern",
  "threat_description": "老人连续多天活动范围缩小",
  "reasoning": [
    "推理步骤1: 活动由多房间收缩到单一区域",
    "推理步骤2: 跨天持续出现",
    "推理步骤3: 提示功能退化或健康问题"
  ],
  "key_evidence": [
    "活动由多房间收缩到单一区域",
    "跨天持续出现",
    "提示功能退化或健康问题"
  ],
  "recommended_actions": [
    "判定为老人活动范围异常缩小，建议关注健康状态。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "过去三天的设备日志显示独居老人的活动模式高度规律且符合正常生活作息，未发现入侵、异常行为或设备故障迹象。",
  "reasoning": [
    "时间模式分析：所有事件均集中在每日 07:25 至 12:00 之间，呈现典型的起床、洗漱（卫生间短暂占用）、早餐/厨房活动及客厅活动的规律，夜间无异常活动记录。",
    "空间逻辑一致性：传感器数据在物理空间上逻辑自洽。例如，入户门接触传感器状态变化与玄关运动传感器激活时间吻合；卧室和客厅的占用状态交替出现，符合老人起床后先在卧室整理再进入客厅或厨房的行为习惯。",
    "设备状态健康：温度传感器读数稳定（约 24-26°C），无突变；门锁状态正常切换；未检测到漏水、烟雾报警或长时间无人但室内有高温等危险信号。跨天摘要中的计数也显示出稳定的日常活动量。",
    "排除误报：虽然存在多房间同时被占用的短暂重叠（如 08:52 客厅和卧室同时有人），但这完全符合老人起床上厕所或从卧室走到客厅的正常移动路径，不属于异常聚集。"
  ],
  "key_evidence": [
    "连续三天（7 月 4 日 -6 日）的活动起始时间高度一致（约 07:25-07:30），表明生物节律稳定。",
    "关键安全设备（门锁、烟雾报警器、漏水传感器）未触发任何警报或异常状态报告。",
    "温度传感器数值在合理范围内波动，且与空调/环境预期相符，无过热或过冷导致的设备损坏风险。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期（如每周）手动检查一次老人身体状况，确保其居家安全。",
    "确认智能家居系统固件为最新状态，以维持 Matter 协议下的最佳兼容性。"
  ]
}
```


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: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light
- 已选事件数: 115

## 跨天活动摘要
- 2026-08-03: living_room=209, bedroom=242, kitchen=241, entrance=231, bathroom=63
- 2026-08-04: living_room=209, bedroom=243, kitchen=239, entrance=231, bathroom=60
- 2026-08-05: living_room=209, bedroom=240, kitchen=239, entrance=231, bathroom=61

## 设备事件日志
[2026-08-03T06:00:10] kitchen_light | OnOff.OnOff = True
[2026-08-03T10:31:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T10:51:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-03T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-03T11:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T11:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-03T11:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-03T11:31:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-03T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-03T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-03T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-03T11:52:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T11:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-03T12:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-03T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-08-03T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-03T12:11:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-03T12:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-03T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-03T12:30:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-03T12:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-03T12:46:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-03T12:52:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T13:06:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T13:26:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T16:58:00] kitchen_light | OnOff.OnOff = True
[2026-08-04T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-04T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-04T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-04T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-04T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-04T13:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-04T13:33:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T13:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-04T13:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T13:43:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-04T13:48:08] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-08-04T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-04T13:57:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-08-04T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-04T14:08:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-08-04T14:14:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-08-04T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-08-04T14:22:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-04T14:28:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-04T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-08-04T14:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-04T14:47:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-08-04T14:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-04T14:59:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T15:00:54] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T15:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-04T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-08-04T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-04T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-04T15:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-04T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-05T10:50:00] kitchen_light | OnOff.OnOff = True
[2026-08-05T15:06:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T15:26:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T15:46:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T15:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-08-05T15:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T16:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-05T16:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-08-05T16:07:37] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-05T16:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T16:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-05T16:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T16:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-05T16:26:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T16:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-08-05T16:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T16:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-08-05T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-05T16:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T16:50:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-05T16:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T16:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-05T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-08-05T17:06:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T17:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2265
[2026-08-05T17:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-08-05T17:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T17:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338

## 任务
以下是过去 3 天的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

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": "behavioral_anomaly",
  "threat_description": "老人用餐时间逐步推迟",
  "reasoning": [
    "推理步骤1: 厨房活动时间逐日明显变晚",
    "推理步骤2: 偏移幅度持续增大",
    "推理步骤3: 提示作息漂移异常"
  ],
  "key_evidence": [
    "厨房活动时间逐日明显变晚",
    "偏移幅度持续增大",
    "提示作息漂移异常"
  ],
  "recommended_actions": [
    "标记为作息异常漂移，建议结合健康状况进一步关注。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "设备日志显示独居老人的日常活动模式正常，无入侵、火灾或健康异常迹象。",
  "reasoning": [
    "时间线分析：所有事件均发生在合理的白天时段（06:00 - 17:25），符合独居老人起床、用餐和活动的常规作息，未发现深夜异常活动或非正常时段的闯入迹象。",
    "空间逻辑验证：运动传感器（occupancy）的触发与温度传感器（temperature_sensor）的读数变化高度相关。例如，当厨房或卧室有人时，对应房间温度有小幅波动；无人时温度逐渐回落至室温，表明传感器工作正常且人员移动轨迹符合家庭内部流动逻辑（如从玄关进入客厅再到厨房）。",
    "设备状态检查：关键安全设备（烟雾报警器、漏水传感器、门锁）在提供的日志片段中未报告任何报警或故障状态。厨房灶具（cook_surface）仅在 16:50 开启一次，随后无长时间无人看管的高热持续记录，且伴随有人在场，排除了‘无人烹饪’风险。",
    "数据一致性：温度数值（如 2533 mK ≈ 25.3°C）处于合理的生活环境范围，没有出现传感器漂移导致的极端高温或低温读数，也未发现传感器卡死（stuck）现象。"
  ],
  "key_evidence": [
    "厨房灶具 (kitchen_cook_surface) 仅在 16:50 开启，且当时厨房及周围区域均有 occupancy=1 的记录，表明有人在旁看管。",
    "所有运动传感器触发后，对应区域的温度传感器均有相应的物理反应（升温或降温趋势），证明传感器联动正常，非误报。",
    "日志中未出现 smoke_co_alarm 报警、water_leak_detector 触发或 door_lock 异常解锁等高危事件。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需立即干预。",
    "建议定期（如每周）人工复核一次烟雾报警器和漏水传感器的电池及功能状态，确保硬件可靠性。",
    "鉴于用户为独居老人，可考虑在现有日志基础上增加对‘长时间静止但温度异常升高’的特定规则监测，以防潜在的健康隐患（如晕倒后电器继续运行）。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: bedroom_occupancy, front_door_contact, front_door_lock
- 已选事件数: 100

## 跨天活动摘要
- 2026-08-09: living_room=209, bedroom=243, kitchen=238, entrance=233, bathroom=60
- 2026-08-10: living_room=209, bedroom=240, kitchen=238, entrance=231, bathroom=61
- 2026-08-11: living_room=211, bedroom=242, kitchen=238, entrance=231, bathroom=60

## 设备事件日志
[2026-08-09T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-09T07:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-09T07:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-09T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T08:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-09T08:14:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-09T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-09T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-09T08:28:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-09T08:28:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-09T08:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:39:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-09T08:43:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-09T08:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-09T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-09T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-09T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-09T09:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-08-09T09:04:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-09T09:08:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-09T09:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-09T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-09T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-09T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-09T09:30:54] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T09:33:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-09T09:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-09T09:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:44:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-09T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-09T09:53:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:13:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:33:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T23:48:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T14:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T23:50:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-11T07:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-11T07:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-11T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T08:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-11T08:14:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-11T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-11T08:20:02] front_door_contact | BooleanState.StateValue = False
[2026-08-11T08:20:19] living_room_light | OnOff.OnOff = True
[2026-08-11T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-11T08:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-11T08:30:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-11T08:39:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-11T08:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-11T08:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-11T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-11T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:04:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-11T09:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-11T09:10:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-11T09:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-11T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-11T09:29:37] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-11T09:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-11T09:35:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-11T09:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:44:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-11T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-11T09:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T10:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
请从下面 3 天的时序日志中分析住户或环境是否出现异常模式，不要只看单个事件。

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": "behavioral_anomaly",
  "threat_description": "出门频率突然下降",
  "reasoning": [
    "推理步骤1: 首日仍有出门链路",
    "推理步骤2: 后续明显缺少外出相关事件",
    "推理步骤3: 可能反映社交/功能退缩"
  ],
  "key_evidence": [
    "首日仍有出门链路",
    "后续明显缺少外出相关事件",
    "可能反映社交/功能退缩"
  ],
  "recommended_actions": [
    "标记为出门频率异常下降，建议结合老人状态持续观察。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式稳定，出入时间规律，设备状态与人员活动逻辑一致，未发现安全威胁。",
  "reasoning": [
    "入住与出门行为逻辑正常：日志中入户门锁操作（LockOperation）均紧随玄关运动传感器检测到有人进入之后，且门接触传感器（front_door_contact）在开门后正确变为 False，随后门锁状态（LockState）变为锁定（2），符合老人起床洗漱、准备出门的正常流程。",
    "跨天活动模式高度一致：对比三天数据，卧室 occupancy 在早晨 07:26 左右开始活跃，客厅温度在 08:35-09:40 之间随人员活动逐渐升高并稳定在 25.4°C 左右，厨房和卫生间的使用频率也保持平稳，未见异常的时间偏移或活动缺失。",
    "环境参数与人员分布匹配：温度传感器读数随人员在不同房间的活动而动态变化（如离开房间后温度缓慢回落或稳定），未出现传感器漂移或故障导致的恒定异常值；烟雾报警器和漏水传感器未触发告警，结合正常的用水和烹饪记录，排除了火灾和漏水风险。"
  ],
  "key_evidence": [
    "2026-08-09T08:28:00 至 09:01:00 期间，门锁操作、门接触状态变化及后续锁定动作时序连贯，无非法入侵迹象。",
    "连续三天的卧室 occupancy 激活时间（约 07:26）和离开时间（夜间 23:50 左右）保持高度一致，表明住户作息规律。",
    "所有温度传感器读数均在合理范围内（24.3°C - 25.6°C），且随人员移动呈现合理的空间温差分布，无传感器故障特征。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控策略，无需额外干预。",
    "建议定期（如每月）检查入户门锁电池电量，确保老人独居时的安防可靠性。"
  ]
}
```