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: 129

## 跨天活动摘要
- 2026-07-13: living_room=209, bedroom=242, kitchen=240, entrance=231, bathroom=62
- 2026-07-14: living_room=209, bedroom=243, kitchen=238, entrance=231, bathroom=64
- 2026-07-15: living_room=209, bedroom=244, kitchen=240, entrance=230, bathroom=57

## 设备事件日志
[2026-07-13T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T07:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-13T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-13T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-13T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-13T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-13T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-13T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-13T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-13T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-13T08:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T08:37:10] living_room_light | OnOff.OnOff = True
[2026-07-13T08:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T08:50:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-13T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-13T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:02:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:15:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-13T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-13T09:27:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:32:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:40:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-13T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-13T09:52:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T09:57:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T10:12:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T10:32:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T10:52:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T15:32:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-14T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-14T07:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-14T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-14T08:09:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T08:14:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-14T08:34:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:35:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-14T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-14T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-14T08:59:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:00:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-14T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-14T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-14T09:24:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:25:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-14T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-14T09:49:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:50:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T10:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T10:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T10:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T11:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-15T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-15T07:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:01:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:21:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:25:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T08:32:02] front_door_contact | BooleanState.StateValue = False
[2026-07-15T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-15T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-15T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-15T08:47:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:55:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-15T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-15T09:12:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:21:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-15T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-15T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-15T09:37:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:50:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-15T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-15T10:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-15T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-15T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-15T11:22:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-15T11:38:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:42:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:51:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-15T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-15T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:03:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:07:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-15T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-15T12:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:32:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-15T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511

## 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，未发现入侵、火灾或健康异常等安全威胁。",
  "reasoning": [
    "1. 行为模式分析：跨天数据（7/13-7/15）显示起床时间（约 07:00-08:00）、厨房活动高峰（08:00-12:00）及卧室夜间占用情况高度一致，符合独居老人稳定的生活作息，无异常离奇行为。",
    "2. 环境状态监测：温度传感器读数（如客厅 25°C 左右，卧室 24°C 左右）处于舒适且安全的范围，未出现高温预警或骤变；烟雾报警器未触发报警事件。",
    "3. 设备逻辑校验：入户门锁在 08:32 关闭后，后续虽有玄关运动传感器触发（可能是开门查看或短暂进出），但结合上下文无长时间未归迹象；所有运动传感器与照明设备的联动逻辑正常，无死锁或误报现象。",
    "4. 综合评估：作为针对独居老人的安全监控任务，当前日志片段完全符合预期基线，未检测到任何需要干预的安全风险。"
  ],
  "key_evidence": [
    "连续三天作息规律，无长时间失联或异常时段。",
    "室内环境温度稳定，无火灾或过热风险指标。",
    "门锁状态与人员进出记录逻辑自洽，无非法入侵痕迹。"
  ],
  "recommended_actions": [
    "继续保持当前设备监控频率，无需额外干预。",
    "建议定期（如每周）人工复核一次系统日志，确保长期稳定性。"
  ]
}
```


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: 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=209, bedroom=242, kitchen=240, entrance=231, bathroom=64
- 2026-08-14: living_room=209, bedroom=242, kitchen=242, entrance=230, bathroom=57

## 设备事件日志
[2026-08-13T06:09:33] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-13T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-13T10:10:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-13T10:40:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-13T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-13T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-13T11:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-13T11:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-13T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T11:20:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T11:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:26:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-13T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-13T11:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-13T11:36:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-13T11:50:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-13T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-13T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-13T12:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-13T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-13T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-13T12:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-13T12:15:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-13T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-13T12:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:27:12] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-13T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-13T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-13T12:35:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:39:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-13T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-13T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-13T12:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:52:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-13T12:56:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-13T13:00:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-13T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-13T13:20:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-13T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-13T13:50:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T14:03:23] living_room_light | OnOff.OnOff = True
[2026-08-14T05:50:34] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-14T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-14T10:12:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-14T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-14T10:42:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-14T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-14T11:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-14T11:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:08:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-14T11:12:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-14T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-14T11:21:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-14T11:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-14T11:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:33:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-14T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-14T11:42:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-14T11:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-14T11:51:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-14T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-14T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-14T12:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:03:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-14T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-14T12:07:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-14T12:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-14T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-14T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-14T12:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-14T12:32:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-14T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-14T12:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-14T12:48:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-14T12:53:09] 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": "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，无检测到入侵、火灾风险或设备故障等安全威胁。",
  "reasoning": [
    "时间线分析：所有事件（如厨房灶具开启/关闭、温度变化、人员进出）均发生在合理的白天时段（06:09 - 14:53），符合独居老人起床、早餐、日间活动的规律，未发现深夜异常活动或非人类作息时间的操作。",
    "行为逻辑验证：厨房灶具（kitchen_cook_surface）的开启与关闭均有明确的占用传感器（occupancy_sensor）信号伴随，且持续时间合理（约 2-3 分钟），排除了无人看管烹饪（unattended_cooking）的风险。",
    "环境状态监测：室内温度传感器读数稳定在 24°C-25.5°C 之间（原始值需除以 10），处于舒适且安全的范围；未检测到烟雾报警器触发、漏水报警或门窗非法开启（contact_sensor 仅在有人进入时联动，无持续异常）。",
    "设备健康检查：所有传感器数据更新正常，无长时间静默（sensor_malfunction）或数值漂移（sensor_drift）现象；窗帘和灯光控制响应及时，无执行器卡死（actuator_stuck）迹象。"
  ],
  "key_evidence": [
    "厨房灶具操作严格遵循‘先有人进入 -> 开启灶具 -> 烹饪 -> 关闭灶具 -> 人离开’的逻辑闭环。",
    "全屋温度传感器读数连续且平稳，无突发性高温或低温异常。",
    "入户门及窗户传感器仅在对应房间有 occupancy=1 记录时出现状态变化，无未经授权的闯入信号。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，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，确保其功能正常。",
    "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’（如超过 4 小时无运动传感器活动）的温和提醒机制，作为健康关怀补充。"
  ]
}
```


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
- 2026-08-07: living_room=210, bedroom=242, kitchen=240, entrance=230, bathroom=57
- 2026-08-08: living_room=207, bedroom=242, kitchen=239, entrance=230, bathroom=63
- 2026-08-09: living_room=209, bedroom=244, kitchen=239, entrance=229, bathroom=63

## 设备事件日志
[2026-08-07T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T07:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-07T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-07T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-07T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-07T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-07T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-07T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-07T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-07T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-07T08:32:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-07T08:32:11] living_room_light | OnOff.OnOff = True
[2026-08-07T08:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T08:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T08:45:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-07T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-07T08:57:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:10:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-07T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-07T09:22:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:35:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-07T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-07T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-07T09:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T10:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T10:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T14:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T07:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-08T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-08T08:02:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:06:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:26:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-08T08:38:02] front_door_contact | BooleanState.StateValue = False
[2026-08-08T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-08T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-08T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-08T08:53:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:58:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:02:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-08T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-08T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-08T09:18:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:23:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:27:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-08T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-08T09:43:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:52:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-08T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-08T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-08T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-08T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-08T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-09T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-09T07:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-09T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-09T08:01:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:21:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-09T08:31:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-09T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-09T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-09T08:47:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:56:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-09T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-09T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-09T09:12:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:26:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-09T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-09T09:37:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:51:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-09T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-09T10:16:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:36:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:56:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:06:00] kitchen_light | OnOff.OnOff = True
[2026-08-09T11:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:16:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-09T11:29:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-09T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-09T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-09T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-09T11:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:56:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-09T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-09T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-09T12:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-09T12:27:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T12:36:03] living_room_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正常，无入侵、火灾或设备故障迹象。",
  "reasoning": [
    "入住与出门逻辑合理：日志中入户门锁操作（LockOperation）与门传感器状态变化（StateValue=False 表示开门）时间高度吻合，且随后玄关和客厅运动传感器立即触发，符合老人正常出入习惯。",
    "温度数据解读正确：所有温度传感器读数（如 2515-2558）均为毫开尔文（mK）单位，换算后约为 24.8°C - 25.3°C，属于夏季室内舒适范围，未出现异常高温或低温漂移。",
    "活动轨迹连贯：卧室作为主要休息区，在夜间至清晨保持占用状态；白天老人从卧室移至厨房、客厅进行常规活动（如烹饪、清洁），各房间占用传感器切换自然，无长时间无人却有人活动的矛盾现象。",
    "关键安全设备正常：厨房灶具关闭事件（OnOff=False）发生在烹饪活动之后，烟雾报警器未报警，漏水传感器无触发记录，表明消防安全和水患风险可控。"
  ],
  "key_evidence": [
    "2026-08-07T08:32:00 门锁手动上锁与 08:38:00 门传感器断开连接的时间差极短，符合正常关门动作。",
    "2026-08-09T11:29:00 厨房灶具关闭事件紧随烹饪期间的温度升高之后，逻辑一致。",
    "连续三天（08-07 至 08-09）的跨天活动摘要显示各房间占用次数稳定，符合独居老人的规律作息。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需额外干预。",
    "建议定期检查老人使用的智能设备电池电量，确保传感器持续在线。",
    "鉴于为独居老人，可考虑在夜间增加一次远程健康检查提醒（非侵入式）。"
  ]
}
```


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_light, kitchen_occupancy
- 已选事件数: 138

## 跨天活动摘要
- 2026-07-21: living_room=207, kitchen=242, bedroom=241, entrance=230, bathroom=63

## 设备事件日志
[2026-07-21T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T00:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-21T00:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-21T00:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-07-21T00:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-21T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-07-21T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-21T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-21T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-21T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-21T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-07-21T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-21T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-21T01:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-07-21T01:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-21T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-21T01:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2205
[2026-07-21T01:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-21T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-21T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2208
[2026-07-21T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-21T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-07-21T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-21T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-07-21T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-21T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-21T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2221
[2026-07-21T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-21T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-21T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-07-21T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-21T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-21T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-07-21T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-21T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-21T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2211
[2026-07-21T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-21T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-21T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-21T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-21T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-21T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-21T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-07-21T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-21T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-21T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2229
[2026-07-21T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-21T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-21T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-21T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-21T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2232
[2026-07-21T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-21T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-07-21T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2240
[2026-07-21T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-21T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-21T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2237
[2026-07-21T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-07-21T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-21T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-21T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-21T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-07-21T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-21T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-21T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-07-21T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-21T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-07-21T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-07-21T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-21T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-21T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-21T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-21T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-21T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-21T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-21T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-21T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-21T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-21T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-21T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-21T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-21T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-21T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-21T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-21T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-21T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-21T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-21T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-21T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-21T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-21T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-21T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-07-21T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-21T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-21T03:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-21T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-21T03:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-21T03:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-21T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-21T03:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-07-21T03:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-21T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-21T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-21T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-21T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398

## 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": "夜间长期停留在非卧室区域",
  "reasoning": [
    "推理步骤1: 深夜在非卧室区域持续活动",
    "推理步骤2: 时长明显超出普通起夜",
    "推理步骤3: 可能是迷路或意识混乱"
  ],
  "key_evidence": [
    "深夜在非卧室区域持续活动",
    "时长明显超出普通起夜",
    "可能是迷路或意识混乱"
  ],
  "recommended_actions": [
    "按老人夜间异常活动处理，建议家属关注。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "检测到厨房区域在无人状态下出现持续高温且伴随灯光开启，存在严重的火灾隐患。",
  "reasoning": [
    "1. 温度异常升高：从凌晨 02:10 开始，厨房温度传感器读数（单位应为 0.1°C）从 233.9°C 持续攀升至 04:10 的 239.8°C。换算后约为 23.4°C - 24.0°C，虽然数值本身未达燃烧点，但结合上下文，Matter 协议中 TemperatureMeasurement.MeasuredValue 通常以 0.1 为单位，即 239.8 代表 23.98°C。然而，更关键的异常在于**趋势与状态的不匹配**。",
    "2. 关键证据分析：在 02:50:00，厨房灯光 (kitchen_light) 被触发开启 (OnOff = True)。此时厨房运动传感器 (kitchen_occupancy) 显示为 0 (无人)，且随后在 03:00、03:30、04:00 多次确认全屋无人。",
    "3. 行为逻辑矛盾：对于独居老人家庭，深夜（凌晨 2-4 点）厨房灯自动开启且无人员活动记录，极不寻常。这暗示可能是设备故障导致的误报，或者是某种自动化脚本/入侵者触发了灯光但未移动（或移动未被检测），亦或是灶具处于异常加热状态导致环境温度波动剧烈（尽管 24 度不算高，但需警惕传感器漂移或即将发生的过热）。",
    "4. 重新校准推理：仔细观察数据，02:10 到 04:10 期间，厨房温度从 233.9 升至 239.8，客厅从 234.1 升至 239.8。这种同步缓慢上升可能并非火灾，而是**空调系统故障**或**温控器失效**导致室温无法维持设定值，或者**传感器校准错误**（Sensor Drift/Malfunction）。但是，考虑到“独居老人”和“深夜无人开灯却亮灯”的组合，最危险的假设是**unattended_cooking**（无人看管烹饪）或**actuator_stuck**（执行器卡死，如灶具点火阀未关）。",
    "5. 修正判断：再次检查日志，发现 02:50 厨房灯亮起。如果这是老人误操作或智能联动错误，而老人并未醒来（全屋 occupancy=0），则构成了“无人看管下的电器运行”。虽然当前温度读数（~24°C）看似正常，但在智能家居安全语境下，深夜非正常时段的光源激活 + 温度持续微升（排除自然昼夜温差，因卧室温度也同步微升，说明可能是全屋空调失效或外部热源），最大的风险点是**系统失控**。",
    "6. 最终定性：最符合威胁模型的是 **sensor_malfunction** (传感器漂移/故障) 或 **safety_device_failure** (安全设备失效)。因为如果是真实的高温火灾前兆，温度应急剧上升；如果是无人烹饪，应有烟雾报警。这里最显著的特征是**深夜灯光无故开启**且**温度读数呈现非自然的线性爬升**（从 233 到 239，每 5 分钟约 0.5 度，这在自然环境中极少见，更像是传感器故障或环境控制回路崩溃）。鉴于独居老人的脆弱性，必须按最高风险处理。",
    "7. 综合结论：核心异常在于**凌晨时段厨房灯光在无人员活动的情况下自动开启**，同时多房间温度传感器数据显示出异常的同步上升趋势，这强烈暗示**传感器故障 (sensor_drift/malfunction)** 或 **环境控制系统失效**，可能导致老人对真实危险（如真实火灾初期温度变化不明显但其他指标异常）失去感知，或设备本身已损坏。"
  ],
  "key_evidence": [
    "2026-07-21T02:50:00 厨房灯光 (kitchen_light) 在无人员活动 (Occupancy=0) 的情况下被触发开启。",
    "2026-07-21T02:10 至 04:10 期间，厨房及客厅温度传感器读数呈现持续的、线性的异常上升趋势（从 ~23.4°C 升至 ~24.0°C），不符合夜间自然降温规律。",
    "全时段 (00:30 - 04:10) 所有房间运动传感器均报告 Occupancy = 0，排除了正常居住活动导致灯光开启的可能性。"
  ],
  "recommended_actions": [
    "立即远程切断厨房电源并关闭厨房灯光，防止潜在的设备过热或电气火灾。",
    "通知住户或其紧急联系人，告知家中可能存在设备故障或异常情况。",
    "安排技术人员上门检查厨房灯光控制器、温度传感器及空调系统，排查硬件故障或软件逻辑错误。",
    "建议重置 Matter 网络中的相关设备配置，并检查是否有未经授权的自动化场景被创建。"
  ]
}
```


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: 105

## 跨天活动摘要
- 2026-07-22: living_room=209, bedroom=242, kitchen=239, entrance=231, bathroom=63
- 2026-07-23: living_room=207, bedroom=242, kitchen=239, entrance=232, bathroom=63
- 2026-07-24: living_room=211, bedroom=241, kitchen=238, entrance=230, bathroom=64

## 设备事件日志
[2026-07-22T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-22T07:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-22T07:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-22T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T08:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-22T08:12:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-22T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-22T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-22T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-22T08:31:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-22T08:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-22T08:41:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:42:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-22T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-22T08:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-22T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-22T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-07-22T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-07-22T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-22T09:06:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:07:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-22T09:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-22T09:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-22T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-22T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-22T09:31:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:32:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-22T09:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-22T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-22T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-22T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-22T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-22T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-22T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-22T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-22T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-22T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-22T20:49:09] front_door_lock | DoorLock.LockState = 1
[2026-07-23T06:51:15] front_door_lock | DoorLock.LockState = 1
[2026-07-23T20:48:12] front_door_lock | DoorLock.LockState = 1
[2026-07-24T07:05:12] front_door_lock | DoorLock.LockState = 1
[2026-07-24T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-24T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T07:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-24T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-24T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-24T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-24T08:10:12] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-24T08:21:02] front_door_contact | BooleanState.StateValue = False
[2026-07-24T08:21:17] living_room_light | OnOff.OnOff = True
[2026-07-24T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-24T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-24T08:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T08:32:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-24T08:36:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-24T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-24T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-24T08:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T08:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T08:57:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-24T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:01:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-24T09:08:20] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-24T09:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-24T09:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:22:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-24T09:26:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-24T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-24T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-24T09:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-24T09:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:47:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-24T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-24T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-24T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-24T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-24T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-24T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542

## 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、异常停留或设备故障迹象。",
  "reasoning": [
    "时间线分析：所有事件均发生在合理的起床（07:00-08:30）和外出/回家时间段内，符合独居老人的作息规律。",
    "门锁逻辑验证：入户门传感器（front_door_contact）在开门时变为 False，随后门锁状态（LockState）正确更新为解锁（1），并在晚上 20:49 左右自动上锁，逻辑闭环完整，无未授权进入迹象。",
    " occupancy 行为一致性：卧室和客厅的占用状态变化与温度传感器的读数波动高度相关（例如早晨卧室有人且温度上升，离开后温度下降），表明传感器工作正常，未发现幽灵触发或数据漂移。",
    "环境安全确认：厨房和客厅的温度读数稳定在合理范围（约 25°C），无烟雾报警器触发记录，无漏水报警，灶具虽被占用但未检测到异常高温或长时间无人看管导致的危险升温趋势。"
  ],
  "key_evidence": [
    "2026-07-22T08:31:00 至 09:00:00 期间，门锁操作与接触传感器状态变化完全同步，且后续有正常的关门上锁动作。",
    "跨天对比显示，每日的活动高峰时段（07:00-10:30）和夜间静默时段（20:49 之后）的模式高度一致，未见异常中断或延迟。",
    "温度传感器数据随人员进出房间呈现自然的物理热交换曲线，无突变或停滞现象。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期检查老人使用的智能设备电池电量，确保长期运行稳定。",
    "可考虑设置简单的‘长时间未出门’提醒规则，作为额外的健康关怀辅助（非紧急警报）。"
  ]
}
```


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: 117

## 跨天活动摘要
- 2026-08-20: living_room=207, bedroom=242, kitchen=240, entrance=232, bathroom=63
- 2026-08-21: living_room=211, bedroom=240, kitchen=239, entrance=230, bathroom=64
- 2026-08-22: living_room=210, bedroom=241, kitchen=240, entrance=231, bathroom=60

## 设备事件日志
[2026-08-20T06:00:10] kitchen_light | OnOff.OnOff = True
[2026-08-20T10:34:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:54:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-20T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-20T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-20T11:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:24:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-20T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-20T11:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-08-20T11:49:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-20T11:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-20T12:01:38] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-20T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-08-20T12:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-20T12:14:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-20T12:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-20T12:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-20T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-20T12:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-20T12:49:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-08-20T12:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-20T13:14:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T13:34:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T12:40:00] living_room_light | OnOff.OnOff = False
[2026-08-21T12:46:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:06:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:26:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:30:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-21T13:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-21T13:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-21T13:46:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-21T13:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-21T14:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-21T14:06:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-21T14:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-08-21T14:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-08-21T14:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-08-21T14:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-21T14:31:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-21T14:38:20] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-21T14:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-08-21T14:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-21T14:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-21T14:56:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-21T15:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T15:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T15:21:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T15:41:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T06:03:05] kitchen_light | OnOff.OnOff = True
[2026-08-22T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-22T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-22T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-22T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-22T15:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-22T15:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-08-22T15:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T15:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-08-22T16:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-08-22T16:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-08-22T16:10:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-22T16:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-08-22T16:30:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-08-22T16:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-08-22T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-08-22T16:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-22T16:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-08-22T16:55:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T17:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-08-22T17:03:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-22T17:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-22T17:09:00] kitchen_light | OnOff.OnOff = True
[2026-08-22T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-22T17:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-22T17:15:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254

## 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": "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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在关键时间点（2026-08-22T17:10:00）报告了 None 值，且随后数值异常波动，结合独居老人背景，存在严重的安全监控失效风险。",
  "reasoning": [
    "推理步骤 1: 分析设备日志发现，厨房温度传感器 (kitchen_temp_sensor) 在 2026-08-22T17:10:00 这一时刻报告了 'MeasuredValue = None'。在 Matter 协议标准中，这通常表示传感器通信中断、硬件故障或供电丢失，而非正常的测量暂停。",
    "推理步骤 2: 对比历史数据，该传感器在前一天和当天早些时候均能正常上报数值（约 2400K-2500K，即 20°C-22°C）。突然的 'None' 读数表明传感器功能丧失，导致无法监测厨房是否过热或发生火情。",
    "推理步骤 3: 考虑到住户为独居老人，厨房是火灾高发区。如果此时老人正在烹饪（日志显示 17:09 厨房灯开启），传感器失效意味着烟雾报警器和温控系统可能无法及时联动，极大地增加了火灾隐患。此外，后续 17:15 的温度读数恢复但数值偏低，可能是传感器重启后的漂移或仍不稳定，进一步证实了设备故障。"
  ],
  "key_evidence": [
    "[2026-08-22T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None",
    "同一时间窗口内其他传感器（如 occupancy, light）工作正常，排除了全屋网络瘫痪的可能性，锁定为单点设备故障。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的电池电量及物理连接状态，确认是否因跌落或老化导致损坏。",
    "暂时人工加强厨房巡查频率，或在老人外出/做饭时安排亲友协助照看，直到传感器修复。",
    "联系 Matter 网关管理员或设备供应商，请求对该传感器进行固件重置或更换新设备，并验证其重新上线后的数据稳定性。"
  ]
}
```


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, kitchen_occupancy
- 已选事件数: 128

## 跨天活动摘要
- 2026-07-19: living_room=211, kitchen=241, bedroom=240, entrance=230, bathroom=64

## 设备事件日志
[2026-07-19T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-19T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-19T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-19T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-19T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-07-19T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-07-19T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-19T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-19T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-19T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-19T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2205
[2026-07-19T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-19T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-19T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2198
[2026-07-19T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-19T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-19T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-07-19T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-19T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-19T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2204
[2026-07-19T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-19T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-19T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2212
[2026-07-19T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-19T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2226
[2026-07-19T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-19T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-19T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2229
[2026-07-19T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-19T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-19T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-07-19T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-19T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-19T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-19T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-19T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2230
[2026-07-19T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-19T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-19T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2227
[2026-07-19T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-07-19T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-19T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-19T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-07-19T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-19T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-19T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-07-19T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-19T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-19T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-19T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-19T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-07-19T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-19T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-07-19T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-19T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-19T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-19T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-19T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-19T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-19T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-19T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-19T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-07-19T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-19T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-19T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-19T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-07-19T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-19T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-19T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-19T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-07-19T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-19T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-19T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2270
[2026-07-19T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-19T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-07-19T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-19T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-19T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-19T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-19T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-07-19T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-19T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-19T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-07-19T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-19T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-19T03:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-19T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-19T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-19T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-19T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-19T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-19T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-19T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-19T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416

## 任务
以下是过去一段时间的设备活动记录。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": "夜间长期停留在非卧室区域",
  "reasoning": [
    "推理步骤1: 深夜在非卧室区域持续活动",
    "推理步骤2: 时长明显超出普通起夜",
    "推理步骤3: 可能是迷路或意识混乱"
  ],
  "key_evidence": [
    "深夜在非卧室区域持续活动",
    "时长明显超出普通起夜",
    "可能是迷路或意识混乱"
  ],
  "recommended_actions": [
    "按老人夜间异常活动处理，建议家属关注。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "检测到厨房区域在无人状态下出现持续高温且温度异常升高，存在严重的火灾隐患。",
  "reasoning": [
    "推理步骤 1: 时间与环境分析。日志显示时间为凌晨 02:10 至 04:20，此时独居老人通常处于睡眠状态（卧室和客厅运动传感器长期为 0），属于非活跃时段。",
    "推理步骤 2: 占用与设备状态矛盾。从 02:10 开始，厨房运动传感器 (kitchen_occupancy) 间歇性报告有人 (Occupancy=1)，但在 02:30、03:00、03:30、04:00 等多次明确报告无人 (Occupancy=0)。这种‘有人’与‘无人’的快速交替或最终确认为‘无人’的状态，结合后续长时间无人员活动，强烈暗示该‘有人’信号可能是误报、宠物干扰或传感器故障，而非真实的人类活动。",
    "推理步骤 3: 温度异常趋势。尽管厨房被判定为无人，但厨房温度传感器读数从 02:10 的约 23.4°C (2343 mK) 持续攀升至 04:20 的约 24.16°C (2416 mK)，并在 03:50 达到峰值 24.00°C (2400 mK)。对于夏季夜晚，室内温度通常在 22-24°C 之间波动，短时间内持续单向升温超过 1°C 且伴随高温峰值，极有可能是灶具 (cook_surface) 未关闭导致的加热现象。",
    "推理步骤 4: 综合风险评估。在独居老人家中，夜间发生灶具忘关的情况是典型的火灾风险场景。虽然厨房灯在 02:50 开启过，但这可能是自动感应或误触，不足以解释长达两小时的持续高温。若灶具仍在加热而无人看管，极易引发火灾。"
  ],
  "key_evidence": [
    "厨房运动传感器在 02:30、03:00、03:30、04:00 多次明确报告 Occupancy = 0，表明现场无真实人员活动。",
    "在无人员确认的情况下，厨房温度传感器读数呈现持续性上升趋势，从 ~23.4°C 升至 ~24.16°C，并出现高温峰值。",
    "事件发生在凌晨深夜（02:10 - 04:20），符合独居老人忘记关闭厨房设备的典型时间窗口。"
  ],
  "recommended_actions": [
    "立即远程通知住户或其紧急联系人，告知可能存在厨房火险。",
    "尝试通过 Matter 协议远程关闭厨房灶具 (cook_surface) 或切断相关电路（如果权限允许）。",
    "检查厨房烟雾报警器状态，确保其正常工作并已触发警报（如有）。",
    "待安全确认后，安排专业人员上门检查厨房设备是否存在硬件故障或需要维修。"
  ]
}
```