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
- 2026-07-27: living_room=209, bedroom=242, kitchen=239, entrance=230, bathroom=56
- 2026-07-28: living_room=210, bedroom=243, kitchen=240, entrance=230, bathroom=59
- 2026-07-29: living_room=211, bedroom=243, kitchen=240, entrance=231, bathroom=57

## 设备事件日志
[2026-07-27T05:58:05] kitchen_light | OnOff.OnOff = True
[2026-07-27T10:30:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T10:50:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-27T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-27T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-27T11:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:25:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:28:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-27T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-27T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-27T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-27T11:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-27T11:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-27T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-27T12:05:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-27T12:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-27T12:25:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-27T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-27T12:37:00] living_room_light | OnOff.OnOff = False
[2026-07-27T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-27T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-27T12:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-27T12:52:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:55:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:15:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:35:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T17:02:00] kitchen_light | OnOff.OnOff = True
[2026-07-28T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-28T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-28T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-28T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-28T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-28T13:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-28T13:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-28T13:39:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:42:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-28T13:48:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-28T13:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-28T13:59:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:02:22] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-28T14:08:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-28T14:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2460
[2026-07-28T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-07-28T14:21:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-28T14:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-28T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-28T14:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-28T14:46:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-07-28T14:53:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-28T14:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T15:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-28T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-28T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-28T15:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-07-28T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-29T11:02:00] kitchen_light | OnOff.OnOff = True
[2026-07-29T15:06:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:26:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:46:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-29T15:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-07-29T16:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-29T16:06:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-29T16:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-29T16:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-29T16:26:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-29T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-29T16:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-07-29T16:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-29T16:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-29T16:51:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-29T16:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:04:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-29T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-29T17:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-29T17:16:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-29T17:23:00] kitchen_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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在活跃烹饪时段出现数据丢失（None），且数值呈现非物理规律的剧烈波动，表明传感器故障或通信中断。",
  "reasoning": [
    "推理步骤 1: 分析日志发现，2026-07-29T17:04:00 时 kitchen_temp_sensor 报告值为 None，紧接着在 T17:20:00 和 T17:23:00 恢复为具体数值。在此期间，kitchen_occupancy 持续为 1，且 kitchen_light 在 T16:40:00 开启，表明住户正在厨房进行活动（极可能是烹饪）。",
    "推理步骤 2: 检查温度数值的合理性。日志中温度值以毫开尔文 (mK) 为单位（例如 2547 mK = 25.47°C）。从 07-27 到 07-28，厨房温度随时间推移有正常的缓慢下降趋势（从 ~25.3°C 降至 ~24.5°C）。然而，在 07-29 的异常点前后，数值在 23.39°C 到 23.75°C 之间微小波动是正常的，但 'None' 的出现打破了连续监测链。更关键的是，如果这是真实的火灾风险场景，温度应急剧上升而非消失；如果是传感器漂移，数值通常会偏离基准线（如突然变成 -50°C 或 50°C），而此处是数据缺失。",
    "推理步骤 3: 结合独居老人背景。对于独居老人，厨房是高风险区域。传感器在有人操作期间突然失效（Data Loss）属于典型的 sensor_malfunction（传感器故障/通信中断），这可能导致无法及时发现潜在的过热、起火或燃气泄漏引发的温度异常，构成了安全隐患。虽然未直接检测到火情，但监控能力的丧失本身就是一种安全威胁。"
  ],
  "key_evidence": [
    "[2026-07-29T17:04:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None",
    "在数据丢失期间及之后，kitchen_occupancy 持续为 1，且 kitchen_light 处于开启状态，证实了厨房有人活动。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的物理连接、电池电量及固件状态，尝试重启设备。",
    "联系 Matter 网络管理员或设备制造商，确认该传感器是否存在已知故障或需要更换。",
    "在修复前，建议老人烹饪时保持人工留意，并考虑暂时移除其他非必要的智能设备干扰，确保烟雾报警器正常工作。"
  ]
}
```


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: 92

## 跨天活动摘要
- 2026-08-28: living_room=210, bedroom=243, kitchen=241, entrance=230, bathroom=59
- 2026-08-29: living_room=211, bedroom=243, kitchen=241, entrance=231, bathroom=57

## 设备事件日志
[2026-08-28T06:01:34] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-28T10:24:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T10:44:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T10:58:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-28T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-28T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-28T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-28T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-28T11:13:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:14:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-28T11:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-28T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-28T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-28T11:29:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-28T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-28T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-28T11:32:22] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-28T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-28T11:38:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:39:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-28T11:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-28T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-28T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-28T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-28T11:58:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:59:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-28T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-28T12:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-28T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-28T12:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-28T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-28T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-28T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-28T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-28T12:23:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:24:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-28T12:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-28T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-28T12:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-28T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-28T12:43:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:44:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-08-28T12:47:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-28T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-28T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-28T13:04:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:24:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:44:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T17:08:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-29T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-29T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-29T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-29T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-29T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-29T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-29T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-29T11:02:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-29T11:05:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-29T11:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-29T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-29T11:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-29T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-29T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-29T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-29T11:30:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:30:56] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-29T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-29T11:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:38:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-29T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-29T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-29T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-29T12:04:00] kitchen_cook_surface | OnOff.OnOff = False

## 任务
请从下面 2 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": "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_drift",
  "threat_description": "客厅温度传感器读数严重偏离物理常识（约 2530-2560），显示为数据漂移或故障，可能导致空调控制失效及老人热应激风险。",
  "reasoning": [
    "推理步骤 1: 分析日志发现，从 2026-08-28T11:00:00 开始，living_room_temp_sensor 的 MeasuredValue 持续在 2530 至 2560 之间波动，而同一时间段 kitchen_temp_sensor 和 bedroom_temp_sensor 的读数均在正常的 2400-2540 范围内（对应实际温度约 24°C - 25.4°C）。",
    "推理步骤 2: 将传感器原始值转换为摄氏度（通常 Matter 协议中整数部分需除以 10 或 100，此处明显是未除 10 的偏移量，即 2530/10 = 253°C，这在家庭环境中是不可能的；或者更可能是传感器固件 Bug 导致数值放大 10 倍，实际应为 25.3°C 但上报了 2530）。",
    "推理步骤 3: 考虑到住户为独居老人，如果系统依据此错误的高温数据（误判为 253°C）自动关闭空调或启动制冷，会导致室内真实温度失控，引发老人中暑或健康危机；若系统忽略该异常，则失去了对室温过高的监控能力。这种传感器数据的系统性偏差属于典型的 sensor_drift 或 sensor_malfunction。",
    "推理步骤 4: 对比其他设备日志，灶具开关、门锁、运动传感器等逻辑正常，唯独温度传感器出现跨房间、跨时间的非物理性数值异常，排除了环境因素干扰，确认为设备自身问题。"
  ],
  "key_evidence": [
    "2026-08-28T11:00:00 living_room_temp_sensor 报告 2534 (kitchen 同期为 2540)，数值远超物理极限。",
    "2026-08-29T10:25:00 living_room_temp_sensor 再次报告 2553，而卧室温度仅为 2445，两者差异巨大且不符合热力学规律。"
  ],
  "recommended_actions": [
    "立即检查并重置客厅温度传感器硬件，或将其从自动化规则中暂时移除，改用手动模式监控。",
    "联系 Matter 设备制造商获取固件更新或技术支持，排查是否存在已知的数值上报 Bug。",
    "鉴于住户为独居老人，建议人工每日定时测量客厅实际温度，确保环境温度安全。"
  ]
}
```


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: 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
- 2026-08-19: living_room=212, bedroom=243, kitchen=239, entrance=231, bathroom=57
- 2026-08-20: living_room=210, bedroom=243, kitchen=238, entrance=230, bathroom=65
- 2026-08-21: living_room=209, bedroom=245, kitchen=238, entrance=231, bathroom=60

## 设备事件日志
[2026-08-19T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-19T07:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-19T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-19T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-19T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-19T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-19T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-19T08:20:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-19T08:20:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-19T08:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:40:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-19T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-19T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-19T08:59:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:00:56] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-19T09:05:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-19T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-19T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-19T09:24:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-19T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-19T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-19T09:49:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T10:00:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T10:20:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T10:40:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T14:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T07:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-20T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-20T08:02:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T08:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-20T08:25:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T08:30:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T08:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-20T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-20T08:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T08:50:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T08:55:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-20T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-20T09:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:15:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:20:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-20T09:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:40:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:45:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-20T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-20T10:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-21T07:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-21T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-21T08:01:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-21T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-21T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-21T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-21T08:25:07] living_room_light | OnOff.OnOff = True
[2026-08-21T08:30:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-21T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-21T08:42:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T08:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T08:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T08:55:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-21T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-21T09:08:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-21T09:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T09:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T09:20:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-21T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-21T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-21T09:37:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T09:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T09:45:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-21T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-21T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-21T10:05:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T10:25:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T10:45:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T11:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T11:05:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T11:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-21T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-21T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-21T11:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T11:36:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-21T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-21T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-21T11:51:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T12:00:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-21T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-21T12:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T12:16:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-21T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-21T12:35:06] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
请综合以下多个设备与环境状态，评估家庭整体安全状况，指出任何潜在风险。

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": "家庭环境运行正常，设备状态与独居老人的日常作息模式高度一致，未发现安全威胁或异常行为。",
  "reasoning": [
    "时间序列分析显示，住户的活动规律（起床、出门、做饭、活动）在三天内保持高度稳定，符合独居老人的典型生活节奏，无异常闯入或长时间滞留迹象。",
    "所有传感器数据逻辑自洽：温度读数（约 25°C）处于舒适范围且波动正常； occupancy 状态变化与门锁操作、灯光开启等事件的时间顺序完全吻合，表明传感器工作正常，无卡死或漂移现象。",
    "关键安全设备（入户门锁、烟雾报警器、漏水传感器）未触发任何报警事件，且日志中未见相关故障报告，系统整体处于健康监控状态。"
  ],
  "key_evidence": [
    "连续三天的活动摘要数据显示各房间占用次数稳定，无突增或骤减的异常模式。",
    "日志中所有 OccupancySensing.Occupancy 状态变更均伴随合理的上下文事件（如开门后进入房间），不存在幽灵触发或逻辑冲突。",
    "厨房灶具 (cook_surface) 和烟雾报警器 (smoke_co_alarm) 在整个监测时段内均未出现异常关闭或报警记录。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控频率，无需调整阈值。",
    "建议定期（如每周）手动检查一次老人是否收到远程关怀提醒，确保其感知到系统的存在但不过度打扰。"
  ]
}
```


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: 137

## 跨天活动摘要
- 2026-07-14: living_room=210, bedroom=242, kitchen=241, entrance=230, bathroom=65

## 设备事件日志
[2026-07-14T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T00:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-14T00:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-07-14T00:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-14T00:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-14T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-14T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-14T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-07-14T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-14T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-07-14T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-14T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-14T01:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2194
[2026-07-14T01:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-14T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-14T01:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-07-14T01:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-14T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-14T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-07-14T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-14T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-14T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-07-14T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-14T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-14T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-07-14T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-14T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-14T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-14T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-14T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-14T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-07-14T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-14T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-14T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-14T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2225
[2026-07-14T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-14T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-14T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2229
[2026-07-14T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-14T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-14T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-07-14T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-14T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-14T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2226
[2026-07-14T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-14T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-14T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2228
[2026-07-14T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-14T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-07-14T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-07-14T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-14T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-14T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-07-14T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-07-14T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-14T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-14T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-14T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-07-14T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-07-14T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-14T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-07-14T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-14T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-14T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-14T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-14T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-07-14T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-07-14T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-14T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-14T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-14T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-14T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-07-14T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-14T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-14T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-14T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-14T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-14T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-14T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-14T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-14T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-14T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-14T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-14T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-14T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-14T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-14T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-14T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-14T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-14T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-14T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-14T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-14T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-14T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-14T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-14T03:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-14T03:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-14T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-14T03:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-14T03:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-14T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-14T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-14T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-14T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400

## 任务
请综合以下多个设备与环境状态，评估家庭整体安全状况，指出任何潜在风险。

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": "厨房温度异常升高且存在无人看管烹饪风险，独居老人夜间活动频繁但厨房长时间处于高温状态。",
  "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 04:10，属于深夜时段。对于独居老人而言，此时段通常应处于睡眠或深度休息状态，不应进行高强度活动。",
    "推理步骤 2: 设备状态异常。厨房运动传感器 (kitchen_occupancy) 在 02:10、02:35、02:50 多次检测到有人 (Occupancy=1)，表明有人在深夜进入厨房。然而，所有房间（包括客厅、卧室）的运动传感器均显示无人 (Occupancy=0)，这极不寻常，暗示可能存在非正常移动路径或传感器盲区，或者老人因健康原因意识模糊/行动不便。",
    "推理步骤 3: 温度数据严重偏离。厨房温度传感器读数从 02:10 的约 23.4°C (2341 mK) 持续攀升至 04:10 的约 24.0°C (2406 mK)。虽然绝对值看似正常，但在无人员活动的情况下（除厨房外全屋无人），厨房温度却呈现持续上升趋势，且伴随厨房灯光开启 (02:50)，强烈暗示灶具可能正在运行但未关闭，或者发生了其他热源事件。考虑到是独居老人，这种深夜独自操作灶具的行为具有极高的火灾和烫伤风险。",
    "推理步骤 4: 综合风险评估。深夜 + 独居老人 + 厨房有人 + 温度持续上升 + 全屋其他区域无人 = 高风险场景。最可能的情况是老人起夜后误开灶具忘记关火，或在厨房内发生跌倒导致无法及时关闭热源。"
  ],
  "key_evidence": [
    "02:10 - 04:10 期间厨房 occupancy 多次为 1，而其他所有房间 occupancy 均为 0。",
    "厨房温度从 23.41°C 持续上升至 24.06°C，且在此期间厨房灯光被打开。",
    "住户为独居老人，深夜出现单人进入厨房且全屋其余区域无人的行为模式不符合常规作息。"
  ],
  "recommended_actions": [
    "立即远程通知监护人或紧急联系人，告知疑似老人深夜在厨房活动及潜在火灾隐患。",
    "尝试通过 Matter 协议远程关闭厨房灶具 (cook_surface) 和厨房灯光，切断热源。",
    "检查烟雾报警器状态，若已触发则启动家庭应急响应预案。",
    "建议后续加强对厨房区域的监控频率，并考虑安装防误触灶具保护盖或智能燃气阀门。"
  ]
}
```


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: 109

## 跨天活动摘要
- 2026-08-13: living_room=209, bedroom=243, kitchen=238, entrance=233, bathroom=60
- 2026-08-14: living_room=210, bedroom=241, kitchen=237, entrance=230, bathroom=59
- 2026-08-15: living_room=210, bedroom=243, kitchen=239, entrance=230, bathroom=57

## 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 = 2504
[2026-08-13T07:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-13T07:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-13T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T08:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-13T08:12:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-13T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-13T08:25:02] front_door_contact | BooleanState.StateValue = False
[2026-08-13T08:25:07] living_room_light | OnOff.OnOff = True
[2026-08-13T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T08:30:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:32:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-13T08:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-13T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-13T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-13T08:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-13T08:55:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:57:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-13T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-13T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-08-13T09:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-13T09:08:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-13T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-13T09:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T09:20:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:22:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-13T09:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-13T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-13T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-13T09:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-13T09:45:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:47:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-13T09:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T14:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T23:49:05] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T23:49:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-15T07:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-15T07:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-15T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T08:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-15T08:12:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-15T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-15T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-15T08:25:02] front_door_contact | BooleanState.StateValue = False
[2026-08-15T08:25:12] living_room_light | OnOff.OnOff = True
[2026-08-15T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-15T08:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:32:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-15T08:35:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-15T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-15T08:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-15T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-15T08:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:57:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-15T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-15T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-15T09:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-15T09:15:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-15T09:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:22:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-15T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-15T09:33:51] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-15T09:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-15T09:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-15T09:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:47:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-15T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-15T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-15T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-15T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-15T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-15T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式稳定，无入侵、设备故障或环境安全隐患。",
  "reasoning": [
    "行为模式一致性：住户在三天内的起床时间（约 07:20-07:40）、出门时间（约 08:25）和夜间睡眠状态（卧室占用持续至深夜）高度一致，符合独居老人的正常作息习惯。",
    "门锁操作逻辑正常：每次 front_door_contact 变为 False（开门）后，均在极短时间内（<1 分钟）由 front_door_lock 执行 LockState=2（上锁），且随后 entrance_occupancy 短暂为 1 随即消失，表明是住户正常进出并随手关门上锁，无尾随或长时间未关门的迹象。",
    "环境传感器数据合理：温度传感器读数（如客厅 25.0°C-25.6°C，卧室 24.3°C-24.5°C）处于舒适且安全的范围内，无异常高温（火灾风险）或低温；漏水传感器未触发报警；烟雾报警器无异常事件记录。",
    "跨天对比无突变：三天的关键事件计数（living_room, bedroom, kitchen 等）波动极小，未见突然的长时间离家、异常频繁的活动或设备离线情况。"
  ],
  "key_evidence": [
    "front_door_contact (False) 与 front_door_lock (LockState=2) 在每次出门事件中紧密关联，时间差小于 1 分钟。",
    "卧室 occupancy 在 23:49 仍为 1，且次日早上 07:27 才出现新的起床活动，符合正常的夜间睡眠周期。",
    "所有温度传感器读数均稳定在 24°C-26°C 区间，无急剧变化或超出安全阈值的情况。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期（如每季度）检查老人使用的智能设备电池电量及固件更新状态，确保长期运行稳定。"
  ]
}
```


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: 111

## 跨天活动摘要
- 2026-08-11: living_room=210, bedroom=241, kitchen=239, entrance=230, bathroom=59
- 2026-08-12: living_room=210, bedroom=242, kitchen=241, entrance=230, bathroom=57

## 设备事件日志
[2026-08-11T06:08:35] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-11T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-11T10:11:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-11T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-11T10:41:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-11T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-11T11:03:00] kitchen_light | OnOff.OnOff = True
[2026-08-11T11:04:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-11T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-11T11:06:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-11T11:13:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-11T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-11T11:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-11T11:33:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-11T11:36:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-11T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-11T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-11T11:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-11T11:58:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-11T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-11T12:01:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-11T12:08:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-11T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-11T12:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-11T12:23:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-11T12:26:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:27:08] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-11T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-11T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-11T12:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-11T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-11T12:48:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-11T12:52:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-11T12:56:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-11T13:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-11T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-11T13:26:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-11T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-08-11T13:51:12] living_room_light | OnOff.OnOff = True
[2026-08-11T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-11T17:06:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-12T10:00:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-12T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-12T10:30:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-12T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-12T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-12T11:00:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:03:51] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T11:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:06:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-12T11:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-12T11:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-12T11:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-12T11:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-12T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-12T11:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-12T11:50:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-12T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-12T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-12T12:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-12T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-12T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-12T12:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-12T12:15:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-12T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-12T12:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-12T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-12T12:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:38:11] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-12T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-12T12:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-12T12:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516

## 任务
请综合以下多个设备与环境状态，评估家庭整体安全状况，指出任何潜在风险。

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": "家庭环境运行正常，设备状态符合独居老人的日常作息规律，未发现安全威胁或异常行为。",
  "reasoning": [
    "时间线分析：日志显示的活动主要集中在上午 10:00 至下午 13:50 之间，随后在 17:06 有一次短暂的灶具开启记录（可能是误触或极短时间操作），整体活动模式符合老人白天居家活动的特征，无夜间异常入侵迹象。",
    "设备状态一致性：厨房灶具 (kitchen_cook_surface) 的开启与关闭事件均伴随厨房温度传感器读数变化及人员在场检测，且每次开启后不久即关闭，未出现长时间无人看管烹饪的情况。",
    "传感器数据合理性：所有温度传感器读数（如客厅约 25°C，卧室约 24°C）均在舒适且安全的范围内；漏水传感器、烟雾报警器等关键安全设备未触发警报；窗户和门锁状态稳定，无非法闯入迹象。",
    "行为逻辑验证：卧室窗帘在中午时分自动或手动完全打开（CurrentPositionLiftPercent100ths = 10000），这与日间光照充足的时间段相符，属于正常的居住行为，非异常操作。"
  ],
  "key_evidence": [
    "厨房灶具仅在有人在场时短暂开启并迅速关闭，无长时间无人值守风险。",
    "所有运动传感器和接触传感器报告的人员活动轨迹连贯，符合单人居住的生活习惯。",
    "关键安全设备（烟雾、漏水、门窗）在整个监控时段内均未检测到危险信号。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控频率，无需额外干预。",
    "建议定期检查厨房灶具的防干烧功能是否灵敏，以防未来发生类似 17:06 的短暂误操作导致隐患。"
  ]
}
```


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

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

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

## 家庭环境信息
家庭布局: 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: 117

## 跨天活动摘要
- 2026-07-22: living_room=210, bedroom=242, kitchen=241, entrance=230, bathroom=57
- 2026-07-23: living_room=210, bedroom=242, kitchen=241, entrance=229, bathroom=63

## 设备事件日志
[2026-07-22T06:02:37] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-22T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-22T10:10:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-22T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-22T10:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-22T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-22T11:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-22T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-22T11:05:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-22T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-22T11:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-22T11:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-22T11:25:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-22T11:33:51] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-22T11:38:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-22T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-22T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-22T11:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-22T11:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-22T11:55:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-22T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-22T12:03:51] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-22T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-22T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-22T12:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-22T12:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-22T12:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-22T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-22T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-22T12:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:38:00] living_room_light | OnOff.OnOff = False
[2026-07-22T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-22T12:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:43:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-22T12:45:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-22T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-22T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-22T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-22T13:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T13:10:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-22T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-22T13:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-22T14:00:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T17:08:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-23T10:00:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-23T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-23T10:30:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-23T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-23T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-23T11:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-23T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-23T11:06:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-23T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-23T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-23T11:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-23T11:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:20:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-23T11:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-23T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-23T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-23T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-23T11:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-23T11:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:50:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-23T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-23T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-23T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-23T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-23T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-23T12:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-23T12:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:15:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-23T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-23T12:29:47] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-23T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-23T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-23T12:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:36:00] living_room_light | OnOff.OnOff = False
[2026-07-23T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-23T12:41:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-23T12:45:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405

## 任务
请综合以下多个设备与环境状态，评估家庭整体安全状况，指出任何潜在风险。

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出现间歇性数据丢失（返回 None），可能导致无法及时监测过热或火灾风险。",
  "reasoning": [
    "推理步骤 1: 日志显示独居老人在 2026-07-22T11:38:00 和 2026-07-23T11:06:00 期间，当厨房灶具处于开启状态且有人在场时，kitchen_temp_sensor 报告的温度值为 'None'，而非正常的数值。",
    "推理步骤 2: 这种数据缺失发生在关键的安全监控时段（烹饪中），对于独居老人而言，如果传感器因故障未能上报高温读数，将直接导致火灾预警系统失效，构成严重安全隐患。",
    "推理步骤 3: 虽然其他设备（如运动传感器、灯光）运行正常，但核心安全传感器（烟雾报警器未在此片段报错，但温度传感器作为辅助热源监测已失效）的数据中断属于明确的设备故障模式，需立即处理以防万一。"
  ],
  "key_evidence": [
    "[2026-07-22T11:38:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None (此时 kitchen_cook_surface 曾于 11:02 开启)",
    "[2026-07-23T11:06:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None (此时 kitchen_light 刚开启，且随后 11:10 恢复数值)"
  ],
  "recommended_actions": [
    "立即检查并更换或维修厨房温度传感器，确保其能持续稳定上报数据。",
    "在修复前，建议老人烹饪时保持窗户开启或人工留意厨房情况，作为临时补偿措施。",
    "验证客厅烟雾报警器的电池及功能是否正常，以弥补厨房温度监测的暂时缺失。"
  ]
}
```