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: 135

## 跨天活动摘要
- 2026-08-02: living_room=210, bedroom=242, kitchen=238, entrance=231, bathroom=60
- 2026-08-03: living_room=210, bedroom=243, kitchen=241, entrance=232, bathroom=63
- 2026-08-04: living_room=209, bedroom=242, kitchen=238, entrance=229, bathroom=65

## 设备事件日志
[2026-08-02T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T07:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-02T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-02T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-02T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-02T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-02T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-02T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-02T08:26:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-02T08:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:37:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:46:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-02T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-02T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-02T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:03:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-02T09:06:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:11:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-02T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-02T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-02T09:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:32:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:36:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-02T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-02T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-02T09:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T09:57:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T10:14:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T10:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T10:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-02T15:24:18] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-03T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-03T07:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-03T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-03T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-03T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-03T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-03T08:24:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-03T08:24:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T08:29:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:33:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-03T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-03T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-03T08:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:58:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-03T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-03T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-03T09:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:24:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-03T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-03T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-03T09:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:49:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:53:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-03T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-03T10:09:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T10:29:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T10:49:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-04T07:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-04T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-04T08:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-04T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-04T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-04T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-04T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-04T08:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-04T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-04T08:43:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:48:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-04T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-04T09:09:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T09:13:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-04T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-04T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-04T09:38:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:43:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-04T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-04T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-04T10:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T10:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T10:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-04T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-04T11:08:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T11:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T11:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-04T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-04T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-04T11:33:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T11:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-04T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-04T11:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T11:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T12:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-04T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-04T12:13:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T12:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T12:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T12:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-04T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-04T12:39:34] bathroom_occupancy | OccupancySensing.Occupancy = 0

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式稳定，设备运行正常，未发现安全威胁或异常行为。",
  "reasoning": [
    "1. 活动规律性分析：跨天摘要显示老人起床时间（约 07:00-08:00）、卧室占用时长及厨房活动频率高度一致，符合稳定的独居生活作息，无异常滞留或长时间未活动迹象。",
    "2. 传感器数据验证：温度传感器数值（如客厅 25°C 左右）在合理范围内且随时间有自然波动；运动传感器状态变化与光照/开门事件逻辑自洽，未见传感器卡死或漂移导致的误报。",
    "3. 关键设备状态确认：入户门锁仅在早晨正常开启一次，无非法尝试记录；烟雾报警器和漏水传感器未触发警报；所有房间占用状态切换流畅，符合单人居住场景。",
    "4. 综合风险评估：基于 Matter 协议日志的完整性，当前数据流体现了正常的家庭环境交互，未检测到入侵、火灾风险、健康危机或其他潜在威胁特征。"
  ],
  "key_evidence": [
    "连续三天早晨 07:00-08:30 间出现一致的起床和出门序列（卧室占用->玄关占用->门锁操作）。",
    "温度传感器读数稳定在 24-26°C 区间，无极端高温或低温突变。",
    "无任何 smoke_co_alarm 或 water_leak_detector 的报警事件记录。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，定期校准传感器以确保长期准确性。",
    "建议家属每周进行一次远程视频通话，作为非技术层面的额外关怀补充。"
  ]
}
```


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

## 跨天活动摘要
- 2026-07-13: living_room=210, bedroom=242, kitchen=242, entrance=232, bathroom=63
- 2026-07-14: living_room=209, bedroom=240, kitchen=239, entrance=229, bathroom=65
- 2026-07-15: living_room=208, bedroom=242, kitchen=240, entrance=232, bathroom=62

## 设备事件日志
[2026-07-13T05:53:06] kitchen_light | OnOff.OnOff = True
[2026-07-13T10:34:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T10:54:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-13T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-13T11:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:24:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-13T11:33:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-13T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-13T11:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-13T11:49:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-13T11:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-13T12:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-13T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-13T12:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-13T12:14:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-13T12:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:24:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T12:30:00] living_room_light | OnOff.OnOff = False
[2026-07-13T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-13T12:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-13T12:49:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-13T12:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-13T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-13T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-13T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-13T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-07-13T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-14T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-14T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-14T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-14T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-14T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-14T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-14T13:30:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T13:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-14T13:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T13:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-14T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-14T13:48:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T13:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-14T13:55:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-14T14:03:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-07-14T14:08:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:09:18] living_room_light | OnOff.OnOff = True
[2026-07-14T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-07-14T14:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2462
[2026-07-14T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-07-14T14:23:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-07-14T14:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-14T14:34:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:39:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-14T14:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-14T14:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-14T14:59:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T15:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-14T15:08:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-14T15:24:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T15:44:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T06:04:04] kitchen_light | OnOff.OnOff = True
[2026-07-15T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-15T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-15T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-15T15:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-15T15:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-15T15:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T15:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-15T16:00:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-15T16:05:23] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T16:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-15T16:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-15T16:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-15T16:25:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-07-15T16:32:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-15T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-07-15T16:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-15T16:50:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T16:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-15T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-15T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-07-15T17:15:13] living_room_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人生活规律，设备状态与人员活动高度一致，未发现安全威胁或异常模式。",
  "reasoning": [
    "时间序列分析：日志中的 occupancy（运动传感器）事件与 light（灯光）、cook_surface（灶具）等 actuator（执行器）的开关状态在时间上紧密耦合（例如 12:05 开灯后不久有厨房活动，14:09 开客厅灯后有持续活动），符合正常居家行为逻辑。",
    "数据有效性验证：所有温度传感器报告的数值（如 living_room_temp_sensor 的 2551, 2541 等）均落在合理范围（约 23°C-26°C）。考虑到 Matter 协议中温度通常以 0.01°C 为单位存储整数，这些数值换算后完全正常，排除了 sensor_drift（传感器漂移）或 sensor_malfunction（传感器故障）的可能性。",
    "跨天模式对比：连续三天的活动摘要（living_room, bedroom, kitchen 等房间的事件计数）波动极小且稳定，表明住户作息规律，无 abnormal_inactivity（异常不活跃）或 intrusion（入侵）迹象。",
    "关键设备状态：入户门锁、烟雾报警器等关键安全设备未报告任何故障代码或异常触发，且窗户/门接触传感器仅在有人进出时变化，逻辑自洽。"
  ],
  "key_evidence": [
    "2026-07-13T12:05:00 厨房灯开启与随后频繁的厨房占用及温度读数变化同步，证实了正常的烹饪/用餐活动。",
    "所有温度读数经换算后均在舒适居住区间（23.8°C - 25.5°C），且随空调和人体活动呈现合理的动态变化趋势。",
    "连续三天各房间事件计数高度一致，反映了稳定的独居老人生活节奏。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需干预。",
    "建议定期（如每季度）手动检查烟雾报警器和漏水传感器的电池及功能，确保物理层安全。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: bedroom_occupancy, front_door_contact, front_door_lock
- 已选事件数: 104

## 跨天活动摘要
- 2026-07-01: living_room=209, bedroom=240, kitchen=238, entrance=231, bathroom=65
- 2026-07-02: living_room=208, bedroom=242, kitchen=239, entrance=232, bathroom=62
- 2026-07-03: living_room=209, bedroom=243, kitchen=240, entrance=231, bathroom=59

## 设备事件日志
[2026-07-01T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-01T07:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-01T07:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-01T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T08:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-01T08:14:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-01T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-01T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-01T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-01T08:33:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-01T08:33:16] living_room_light | OnOff.OnOff = True
[2026-07-01T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-01T08:38:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-01T08:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:43:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-01T08:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-01T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-01T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-07-01T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-07-01T09:03:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-01T09:09:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-01T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-01T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-01T09:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-01T09:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:23:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-01T09:28:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-01T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-01T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-01T09:43:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-01T09:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:48:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-01T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-01T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-01T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-01T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-01T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-01T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-01T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-01T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-01T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-01T20:53:14] front_door_lock | DoorLock.LockState = 1
[2026-07-02T06:52:13] front_door_lock | DoorLock.LockState = 1
[2026-07-02T20:49:21] front_door_lock | DoorLock.LockState = 1
[2026-07-03T07:00:16] front_door_lock | DoorLock.LockState = 1
[2026-07-03T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-03T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-03T07:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-03T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-03T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-03T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-03T08:10:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-03T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-03T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-03T08:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:31:25] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-03T08:34:02] front_door_contact | BooleanState.StateValue = False
[2026-07-03T08:34:10] living_room_light | OnOff.OnOff = True
[2026-07-03T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-03T08:39:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-03T08:40:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-03T08:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-03T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-03T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-03T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:04:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-03T09:05:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-03T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-03T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-03T09:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-03T09:31:25] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-03T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-03T09:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-03T09:44:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-03T09:45:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-03T09:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T10:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T10:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "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": "过去三天的设备日志显示独居老人的日常活动模式稳定，无入侵、异常操作或设备故障迹象。",
  "reasoning": [
    "入住与出门逻辑正常：日志中入户门锁（front_door_lock）的锁定/解锁状态变化与门磁传感器（front_door_contact）的开合状态严格对应，且均发生在合理的时间段（早晨约 08:30-09:00 出门，晚上约 20:50 回家），符合独居老人的作息规律，未发现未授权进入或尾随迹象。",
    "室内活动连贯性良好：卧室（bedroom）、客厅（living_room）和厨房（kitchen）的运动传感器（occupancy_sensor）读数在白天时段呈现连续的高频活跃状态，且各房间温度传感器数据波动在正常环境范围内（约 24.3°C - 25.6°C），未见长时间无人却持续加热或冷却的异常情况。",
    "关键安全设备运行正常：烟雾报警器（smoke_co_alarm）和漏水传感器（water_leak_detector）在提供的日志片段中未触发报警事件，且相关区域（如厨房灶具使用期间）的温度读数平稳，无火灾或漏水风险特征。"
  ],
  "key_evidence": [
    "前门锁状态变化（LockState=1/2）与门接触传感器状态（False/Open）在时间上高度同步，表明用户自主控制进出。",
    "卧室和客厅的运动传感器在白天（07:27 - 10:30）保持持续激活状态，且温度读数与环境预期一致，排除了入侵者潜伏的可能性。",
    "跨天活动摘要显示各房间事件计数稳定，无突增或骤降等异常模式。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期（如每周）手动检查一次烟雾报警器和电池电量，确保老人独居时的被动安全。"
  ]
}
```


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: 106

## 跨天活动摘要
- 2026-08-13: living_room=208, bedroom=242, kitchen=239, entrance=234, bathroom=62
- 2026-08-14: living_room=209, bedroom=242, kitchen=240, entrance=231, bathroom=59
- 2026-08-15: living_room=210, bedroom=242, kitchen=237, entrance=230, bathroom=63

## 设备事件日志
[2026-08-13T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-13T07:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-13T07:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-13T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T08:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-13T08:14:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-13T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-13T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-13T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-13T08:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-13T08:37:06] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:39:00] front_door_lock | DoorLock.LockState = 2
[2026-08-13T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-13T08:44:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-13T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-13T08:54:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-13T08:58:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-13T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-13T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-08-13T09:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-13T09:09:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-13T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-13T09:19:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-13T09:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-13T09:29:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-13T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-13T09:35:23] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-13T09:44:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-13T09:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:49:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-13T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-13T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-13T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-13T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-13T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-13T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-13T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-13T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-13T20:49:21] front_door_lock | DoorLock.LockState = 1
[2026-08-14T07:00:16] front_door_lock | DoorLock.LockState = 1
[2026-08-14T20:45:11] front_door_lock | DoorLock.LockState = 1
[2026-08-15T06:57:13] front_door_lock | DoorLock.LockState = 1
[2026-08-15T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-15T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T07:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-15T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-15T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-15T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-15T08:11:35] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-15T08:15:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-15T08:25:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-15T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-15T08:25:11] living_room_light | OnOff.OnOff = True
[2026-08-15T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-15T08:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-15T08:35:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-15T08:40:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-15T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-15T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-15T08:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-15T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:00:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-15T09:05:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-15T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-15T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-15T09:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:25:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-15T09:30:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-15T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-15T09:41:35] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T09:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-15T09:50:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T10:10:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T10:30:08] living_room_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "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": "过去三天的设备日志显示独居老人的日常活动模式稳定，无入侵、异常操作或设备故障迹象。",
  "reasoning": [
    "时间序列分析：日志记录了从清晨 (07:00) 到上午 (10:30) 的活动，门锁状态在夜间 (20:49) 和次日清晨 (06:57) 正常锁定/解锁，符合独居老人规律的生活作息。",
    " occupancy 模式验证：卧室 (bedroom) 在早晨有人员进入并持续存在，随后客厅 (living_room)、厨房 (kitchen) 和玄关 (entrance) 依次出现活动轨迹，且各房间运动传感器读数与跨天摘要中的高频计数一致，表明住户在家中正常移动，无长时间滞留或异常徘徊。",
    " 设备状态一致性：温度传感器数值（如 living_room_temp_sensor 的 2524-2558）换算后约为 22°C-25°C，处于舒适且安全的室温范围；门窗接触传感器和烟雾报警器未触发报警事件；门锁操作记录清晰，未见非法尝试或卡死现象。",
    " 排除误报：虽然部分时间段多个传感器同时报告 'Occupancy=1'，但这符合多人在同一空间或视线重叠的正常物理场景，结合历史数据看属于基准行为而非异常。"
  ],
  "key_evidence": [
    "front_door_lock 在 2026-08-13T20:49:21 和 2026-08-14T07:00:16 等时间点呈现正常的 LockState 变化，无连续失败或异常解锁。",
    "bedroom_occupancy 在 07:28 变为 1 并在后续数小时内保持活跃，随后 kitchen 和 living_room 依次激活，形成连贯的家庭内部活动流。",
    "所有 temperature_sensor 读数均在合理范围内（约 22-25°C），未出现极端高温或低温导致的设备保护性停机或火灾风险预警。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期（如每周）检查一次烟雾报警器和漏水传感器的电池及功能状态，确保长期可靠性。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ4
- 重点房间: living_room
- 重点设备: kitchen_cook_surface
- 已选事件数: 114

## 跨天活动摘要
- 2026-07-23: living_room=209, bedroom=242, kitchen=242, entrance=231, bathroom=59
- 2026-07-24: living_room=210, bedroom=241, kitchen=239, entrance=230, bathroom=63

## 设备事件日志
[2026-07-23T06:00:40] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-23T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-23T10:14:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-23T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-23T10:44:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-23T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-23T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-23T11:01:25] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-23T11:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-23T11:09:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-23T11:13:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-23T11:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-23T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-23T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-23T11:34:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-23T11:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-23T11:43:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-23T11:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-23T11:54:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-23T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-23T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-23T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-23T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-23T12:08:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-23T12:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-23T12:19:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-23T12:22:00] living_room_light | OnOff.OnOff = False
[2026-07-23T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-23T12:27:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-23T12:33:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-23T12:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:44:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-23T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-23T12:52:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-23T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-23T13:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-23T13:14:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-23T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-23T13:44:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-07-23T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-24T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-24T10:05:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-24T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-24T10:35:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-24T10:59:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-24T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-24T11:00:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-24T11:11:35] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-24T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-24T11:20:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-24T11:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-24T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-24T11:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-24T11:41:35] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-24T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-24T11:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-24T11:55:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-24T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-24T12:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-24T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-24T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-24T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-24T12:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-24T12:20:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-24T12:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:29:00] living_room_light | OnOff.OnOff = False
[2026-07-24T12:29:12] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-24T12:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-24T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-24T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-24T12:45:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-24T12:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:54:04] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "health_concern",
  "threat_description": "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：所有事件均发生在白天（06:00 - 14:00），符合独居老人正常的起床、用餐和活动规律，未发现深夜异常活动或非授权时段的活动。",
    "行为一致性：厨房灶具 (kitchen_cook_surface) 的开启与关闭均有明确的 occupancy 传感器数据支持（有人在厨房时开启，有人离开后关闭），且持续时间合理（约 5-10 分钟），排除了无人看管烹饪的风险。",
    "环境状态稳定：客厅和卧室的温度传感器读数在 24°C-26°C 之间波动，处于舒适且安全的范围内；未检测到烟雾报警器触发或温度急剧升高的迹象。",
    "人员分布逻辑：运动传感器在各房间的状态变化连贯，例如从玄关进入后，客厅、厨房、卧室的占用状态随之更新，没有出现人员凭空消失或出现在不可能区域的逻辑矛盾。",
    "设备运行正常：窗帘开合、灯光开关等操作均伴随合理的上下文（如准备休息或调整光线），未见设备卡死或误报现象。"
  ],
  "key_evidence": [
    "厨房灶具操作严格遵循'人在操作'的逻辑，无长时间无人看管记录。",
    "全屋温度传感器读数稳定，无高温预警或烟雾报警信号。",
    "各房间 occupancy 传感器数据流转自然，符合单人活动的物理路径。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控频率，无需额外干预。",
    "建议定期（如每周）人工检查一次烟雾报警器和漏水传感器的电池及功能状态，作为预防性维护。"
  ]
}
```


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: 116

## 跨天活动摘要
- 2026-08-08: living_room=210, bedroom=241, kitchen=238, entrance=230, bathroom=63
- 2026-08-09: living_room=207, bedroom=242, kitchen=239, entrance=230, bathroom=66
- 2026-08-10: living_room=207, bedroom=242, kitchen=240, entrance=230, bathroom=62

## 设备事件日志
[2026-08-08T06:10:02] kitchen_light | OnOff.OnOff = True
[2026-08-08T10:30:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T10:50:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-08T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-08T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-08T11:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-08T11:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-08T11:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-08T11:35:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-08T11:41:35] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-08T11:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-08T11:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-08T12:00:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-08T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-08-08T12:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-08T12:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-08T12:25:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:29:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-08T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-08T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-08T12:45:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-08T12:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-08T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-08T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-08T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-08T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-09T12:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T13:00:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T13:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-08-09T13:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-09T13:36:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T13:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-08-09T13:45:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-08-09T13:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T13:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-08-09T13:55:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-08-09T14:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:04:24] living_room_light | OnOff.OnOff = True
[2026-08-09T14:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-08-09T14:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-08-09T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-08-09T14:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:29:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-09T14:36:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-09T14:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-09T14:49:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-09T14:54:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-09T15:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T15:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-09T15:07:26] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T15:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-09T15:19:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T15:39:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T15:59:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-10T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-08-10T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-10T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-10T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-10T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-08-10T15:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T15:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-10T15:56:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-08-10T16:03:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-08-10T16:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-10T16:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-08-10T16:21:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-10T16:28:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:33:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-08-10T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-08-10T16:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-08-10T16:46:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-10T16:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T16:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-08-10T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-10T17:06:19] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T17:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-08-10T17:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-08-10T17:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T17:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "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": [
    "1. 人员活动规律：日志中 occupancy_sensor（运动传感器）在 living_room, kitchen, bedroom, entrance 等区域频繁触发（值为 1），且时间分布符合白天居家活动的自然规律（如上午 10 点至下午 5 点），未见长时间无人但其他房间有活动的异常分离现象，也未见深夜异常活动。",
    "2. 温度数据合理：所有 temperature_sensor 报告的数值（如 2551, 2441 等）若按 Matter 标准解读为毫开尔文 (mK)，则对应约 22°C - 23°C，属于舒适的室内环境温度；即使直接视为摄氏度，也需结合上下文判断，但考虑到空调和窗帘的操作记录，环境控制是活跃的，排除了极端高温导致的火灾风险或传感器完全失效（漂移/卡死）。",
    "3. 设备状态一致：kitchen_light 的开关操作与厨房 occupancy 存在逻辑关联（人在厨房开灯），living_room 和 bedroom 的灯光及窗帘操作也与 occupancy 变化同步，未发现 actuator_stuck（执行器卡死）或 sensor_malfunction（传感器故障）的迹象。",
    "4. 安全设备正常：smoke_co_alarm（烟雾报警器）未触发报警事件，water_leak_detector（漏水传感器）无相关事件报告，door_lock（门锁）虽无直接开锁日志，但 entrance_occupancy 和 contact_sensor 的活动表明门扇有正常的进出开合，符合独居老人生活场景。"
  ],
  "key_evidence": [
    "多房间 occupancy_sensor 持续活跃，时间线连贯，符合单人日间活动特征。",
    "TemperatureMeasurement 数值稳定且在合理范围内，无急剧升高或异常低值。",
    "无任何 smoke_co_alarm 报警、water_leak 触发或 door_lock 异常锁定/解锁事件。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需干预。",
    "建议定期（如每周）人工检查一次入户门锁电池及机械锁具功能，确保物理安全。"
  ]
}
```


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_cook_surface
- 已选事件数: 91

## 跨天活动摘要
- 2026-08-08: living_room=207, bedroom=242, kitchen=240, entrance=230, bathroom=66
- 2026-08-09: living_room=207, bedroom=242, kitchen=241, entrance=230, bathroom=62

## 设备事件日志
[2026-08-08T06:06:34] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-08T10:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T10:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-08T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-08T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-08T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-08T11:10:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:14:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-08T11:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:16:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:20:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-08T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-08T11:21:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-08T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-08T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-08T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-08T11:30:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-08T11:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:36:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-08T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-08T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-08T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-08T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-08T11:55:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:59:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-08T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-08T12:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-08T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-08T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-08T12:07:26] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-08T12:20:00] living_room_light | OnOff.OnOff = False
[2026-08-08T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-08T12:20:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-08T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-08T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-08T12:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:37:26] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-08T12:40:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-08T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-08T12:46:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-08T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-08T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-08T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-08T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-08T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-08-08T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-08T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-08T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-08T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-08T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-08-08T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-08-08T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-09T06:02:40] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-09T10:23:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:43:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:03:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-09T11:10:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-09T11:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-09T11:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-09T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-09T11:23:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-09T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-09T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-09T11:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-09T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-09T11:38:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-09T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-09T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-09T12:04:00] kitchen_cook_surface | OnOff.OnOff = False

## 任务
以下是过去 2 天的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "health_concern",
  "threat_description": "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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在烹饪活动期间频繁报告无效值 (None) 或异常低值，且与灶具状态不匹配，存在严重的安全监测失效风险。",
  "reasoning": [
    "推理步骤 1: 分析日志发现，在 2026-08-08T11:21:00 和 2026-08-09T11:38:00 等关键时间点，当 `kitchen_cook_surface` 处于开启或刚关闭状态（表明正在或刚刚结束烹饪）时，`kitchen_temp_sensor` 报告的温度值为 `None`。对于独居老人家庭，烹饪时的温度数据缺失意味着无法监控是否发生过热、起火或燃气泄漏导致的温度异常升高。",
    "推理步骤 2: 对比同一时间段内的其他传感器数据，`living_room_temp_sensor` 和 `bedroom_temp_sensor` 均能正常返回合理的摄氏度数值（如 25°C 左右，即约 2500 mK），证明传感器网络整体在线且工作正常，问题局限于厨房温度传感器本身或其通信链路。",
    "推理步骤 3: 考虑到住户为独居老人，厨房是火灾高发区。如果温度传感器因故障（malfunction）而持续丢失数据，将导致智能家居系统无法触发基于高温的自动切断电源或报警机制，极大地增加了火灾隐患且无人知晓。"
  ],
  "key_evidence": [
    "[2026-08-08T11:21:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None (此时灶具刚关闭)",
    "[2026-08-09T11:38:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None (此时灶具开启中)",
    "其他房间温度传感器在同一时间窗口内持续提供有效读数，排除了全网故障的可能性。"
  ],
  "recommended_actions": [
    "立即检查并更换厨房温度传感器硬件，或重新校准其 Matter 配置。",
    "在修复前，建议人工增加对厨房烹饪过程的巡视频率，或暂时移除该传感器的自动化联动逻辑以防误报，但需保持手动报警功能可用。",
    "联系设备制造商确认是否存在固件 Bug 导致特定场景下上报空值。"
  ]
}
```