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: 119

## 跨天活动摘要
- 2026-07-26: living_room=207, bedroom=242, kitchen=240, entrance=230, bathroom=62
- 2026-07-27: living_room=210, bedroom=241, kitchen=239, entrance=231, bathroom=60
- 2026-07-28: living_room=209, bedroom=242, kitchen=240, entrance=231, bathroom=59

## 设备事件日志
[2026-07-26T06:02:10] kitchen_light | OnOff.OnOff = True
[2026-07-26T10:33:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T10:53:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-26T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-26T11:18:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T11:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-26T11:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-26T11:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-26T11:37:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-26T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-26T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-26T11:53:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T11:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-26T12:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-26T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-26T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-26T12:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-26T12:18:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T12:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-26T12:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-26T12:33:12] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-26T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-26T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-26T12:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-26T12:53:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T12:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-26T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-26T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-26T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-26T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-27T12:42:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:02:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:22:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-27T13:32:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-27T13:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-27T13:42:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:46:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-27T13:52:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-27T13:57:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T14:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-27T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-27T14:07:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-07-27T14:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T14:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-27T14:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T14:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-07-27T14:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-27T14:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-27T14:30:28] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-27T14:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-27T14:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T14:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-27T14:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T14:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T14:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-27T14:50:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-27T14:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-27T15:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-27T15:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T15:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-27T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-07-27T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-27T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-27T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-28T15:04:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T15:24:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T15:44:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T15:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-28T15:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T15:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-28T16:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-07-28T16:04:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-07-28T16:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-07-28T16:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-28T16:24:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:29:25] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-28T16:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-28T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-07-28T16:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-28T16:49:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:51:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-28T16:58:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-28T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-28T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-28T17:14:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T17:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-28T17:23:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None

## 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，设备状态与时间戳逻辑一致，未发现入侵、火灾或健康异常迹象。",
  "reasoning": [
    "1. 行为模式分析：住户在三天内的活动轨迹（起床、厨房活动、卧室休息、晚间活动）高度一致且符合独居老人的正常作息习惯，无长时间未活动的‘异常静默’或深夜异常出入。",
    "2. 环境数据合理性：温度传感器数值（如客厅 25°C-26°C，卧室 23°C-24°C）处于舒适且合理的范围，且随昼夜变化呈现正常的降温趋势，无高温预警或传感器漂移导致的乱码。",
    "3. 设备联动逻辑：厨房灶具关闭后灯光随之关闭/开启，运动传感器触发与人员移动时间吻合，所有 Actuator（执行器）和 Sensor（传感器）的状态变化均符合物理因果律，未发现设备卡死或误报。",
    "4. 安全设备状态：烟雾报警器、漏水传感器等关键安全设备在日志中未触发报警事件，且无相关异常状态报告，表明系统运行正常。"
  ],
  "key_evidence": [
    "连续三天同一时间段内，厨房灶具 (cook_surface) 均在有人活动时开启，并在无人时自动关闭，逻辑闭环完整。",
    "卧室温度传感器读数从白天的 24°C 左右逐渐下降至晚上的 22°C 左右，符合夜间自然散热规律，排除了传感器故障。",
    "入户门 (entrance) 和窗户 (contact_sensor) 传感器仅在白天特定时间点有短暂占用记录，其余时间均为空闲状态，无非法闯入迹象。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需干预。",
    "建议定期（如每周）人工检查一次老人身体状况及家中水电燃气安全，作为常规关怀措施。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light, kitchen_occupancy
- 已选事件数: 132

## 跨天活动摘要
- 2026-07-28: living_room=210, bedroom=241, kitchen=241, entrance=231, bathroom=60

## 设备事件日志
[2026-07-28T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-28T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-28T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-28T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-28T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-28T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-07-28T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-28T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-07-28T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-28T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-28T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2197
[2026-07-28T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-07-28T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-28T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-07-28T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-28T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-28T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-28T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-28T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-28T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-07-28T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-28T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-28T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2220
[2026-07-28T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-28T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-28T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-28T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-28T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2212
[2026-07-28T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-28T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-28T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-07-28T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-28T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-28T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-28T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-28T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-07-28T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-28T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-28T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-07-28T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-28T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-07-28T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-07-28T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-28T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-28T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-07-28T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-28T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-28T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-07-28T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-07-28T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-28T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-28T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-28T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-28T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2237
[2026-07-28T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-28T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-28T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-07-28T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-28T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-07-28T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-28T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-28T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-07-28T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-28T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-28T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-28T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-28T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-07-28T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-28T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-28T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-28T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-28T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-28T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-28T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-28T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-28T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-28T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-28T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-07-28T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-28T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-28T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-28T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-28T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-28T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-28T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-28T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-28T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-28T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-28T03:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-28T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-28T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-28T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-28T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-28T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-28T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-28T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-28T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-28T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423

## 任务
以下是过去一段时间的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "检测到厨房区域存在严重的温度异常升高，且伴随无人值守状态，极可能引发火灾风险。",
  "reasoning": [
    "推理步骤 1: 分析时间线与占用状态。日志显示在 2026-07-28T02:10:00 至 02:35:00 期间，厨房运动传感器 (kitchen_occupancy) 曾短暂检测到人 (Occupancy=1)，但随后在 02:40:00 及之后长时间保持无人状态 (Occupancy=0)。",
    "推理步骤 2: 分析温度变化趋势。尽管厨房无人，但厨房温度传感器读数从凌晨 02:10 的约 23.3°C (2328 mK) 持续急剧上升，至 04:20:00 达到约 24.2°C (2423 mK)，并在短时间内（03:45）突破 24.0°C (2400 mK)。这种在无人员干预情况下的持续升温不符合正常环境热力学规律。",
    "推理步骤 3: 结合住户画像评估风险。住户为独居老人，反应速度可能较慢。厨房是家庭火灾高发区，持续的无人高温状态强烈暗示灶具未关闭、电器故障或烹饪遗留火源，构成了极高的火灾隐患。"
  ],
  "key_evidence": [
    "2026-07-28T02:10:00 - 02:35:00 期间 kitchen_occupancy 检测到有人活动，随后变为长期无人 (02:40:00 起 Occupancy=0)。",
    "在无人状态下，kitchen_temp_sensor 读数从 ~23.3°C 持续攀升至 ~24.2°C，且升温速率在后期加快。",
    "事件发生在深夜/凌晨时段，独居老人可能无法及时察觉并处理厨房隐患。"
  ],
  "recommended_actions": [
    "立即远程通知住户或其紧急联系人，告知厨房存在严重过热风险。",
    "若系统具备联动能力，尝试自动切断厨房电源或启动烟雾报警器进行声光警示。",
    "建议物业或社区工作人员尽快上门检查厨房状况，确认是否有明火或设备故障。"
  ]
}
```


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: 134

## 跨天活动摘要
- 2026-07-30: living_room=209, bedroom=242, kitchen=242, entrance=231, bathroom=59

## 设备事件日志
[2026-07-30T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T00:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-30T00:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-07-30T00:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-30T00:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-30T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-30T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-30T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-07-30T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-30T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-07-30T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-30T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-30T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-07-30T01:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2189
[2026-07-30T01:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-07-30T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-30T01:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2203
[2026-07-30T01:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-30T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-30T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2210
[2026-07-30T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-30T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-30T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2205
[2026-07-30T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-30T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-30T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-07-30T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-30T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2204
[2026-07-30T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-30T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-30T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-30T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2226
[2026-07-30T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-30T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-30T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-30T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-30T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-30T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-07-30T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-30T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-30T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-07-30T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-30T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-07-30T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-30T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-30T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2230
[2026-07-30T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-07-30T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2225
[2026-07-30T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-30T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-30T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2246
[2026-07-30T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-30T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-07-30T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-07-30T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-07-30T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-30T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-30T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-30T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-30T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-30T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-30T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-07-30T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-30T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-30T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-30T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-30T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-30T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-07-30T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-30T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-30T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-07-30T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-30T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-30T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-07-30T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-30T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-30T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-30T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-07-30T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-30T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-30T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-30T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-30T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-30T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-30T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-30T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-30T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-30T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-07-30T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-30T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-30T03:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-30T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-30T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-30T03:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-30T03:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-30T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-30T03:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-30T03:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-30T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-30T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-30T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402

## 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": "检测到厨房区域存在严重的温度异常升高，且伴随无人值守状态，极可能引发火灾风险。",
  "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 04:05，属于独居老人的夜间睡眠时段，此时住户通常不在活动区。",
    "推理步骤 2: 占用状态分析。在温度急剧上升期间（02:10 - 04:05），厨房运动传感器 (kitchen_occupancy) 多次报告为 0（无人），仅在 02:10、02:35、02:50 短暂出现 1 的读数，随后又迅速归零或保持极低频率，表明该区域处于无人看管状态。",
    "推理步骤 3: 温度趋势分析。厨房温度传感器读数从 02:10 的约 23.3°C (2336 mK) 持续单调上升至 04:05 的约 24.0°C (2402 mK)，增幅显著且无回落迹象。相比之下，卧室和客厅温度虽有波动但相对平稳。这种在无人状态下厨房温度的持续攀升是典型的电器过热或灶具未关特征。",
    "推理步骤 4: 设备行为关联。虽然厨房灯在 02:50 开启，但这可能是自动感应或误触，无法解释长达近两小时的持续高温。结合独居老人背景，若发生此类情况，老人可能因听力下降或睡眠中未能察觉危险，导致火势蔓延。"
  ],
  "key_evidence": [
    "02:10 至 04:05 期间，厨房温度从 ~23.3°C 持续上升至 ~24.0°C，呈现明显的过热趋势。",
    "同一时间段内，厨房运动传感器绝大多数时间为 0（无人），缺乏人员干预降温的迹象。",
    "作为对比，卧室和客厅在同一时段温度变化平缓，排除了全屋环境温度普遍升高的可能性。"
  ],
  "recommended_actions": [
    "立即远程通知监护人或紧急联系人，告知可能存在厨房火灾隐患。",
    "尝试通过 Matter 协议远程关闭厨房灯光及连接的可控电器（如智能插座控制的灶具或烤箱）。",
    "检查烟雾报警器状态，确保其正常工作并准备启动应急响应预案。",
    "建议后续对厨房设备进行物理检查，排查是否存在线路老化或设备故障。"
  ]
}
```


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: 131

## 跨天活动摘要
- 2026-07-28: living_room=209, bedroom=242, kitchen=239, entrance=229, bathroom=62
- 2026-07-29: living_room=210, bedroom=243, kitchen=239, entrance=230, bathroom=63
- 2026-07-30: living_room=210, bedroom=244, kitchen=239, entrance=231, bathroom=58

## 设备事件日志
[2026-07-28T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T07:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-28T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-28T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-28T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-28T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-28T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-28T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-28T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-28T08:32:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:36:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-28T08:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:50:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-28T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-28T09:07:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:15:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-28T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-28T09:32:33] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T09:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:40:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-28T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-28T10:05:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T10:25:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T10:45:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T00:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-29T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-29T07:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-29T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-29T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-29T08:25:00] front_door_lock | DoorLock.LockState = 2
[2026-07-29T08:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-29T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-29T08:39:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:40:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-29T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-29T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-29T09:05:48] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T09:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-29T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-29T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-29T09:34:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:35:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-29T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-29T09:59:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-29T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-29T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-29T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-29T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-29T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-29T15:27:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-30T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-30T07:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-30T08:03:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T08:07:06] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:24:12] living_room_light | OnOff.OnOff = True
[2026-07-30T08:29:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:32:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-30T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-30T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-30T08:49:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:57:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-30T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-30T09:14:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:22:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-30T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-30T09:39:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:47:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-30T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-30T10:09:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T10:29:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T10:49:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:03:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T11:07:00] kitchen_light | OnOff.OnOff = True
[2026-07-30T11:09:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-30T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-30T11:34:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:39:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-30T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-30T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-30T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-30T11:54:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:02:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-30T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-30T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-30T12:19:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:27:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415

## 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，独居老人的活动模式符合预期，未发现入侵、火灾或设备故障等安全威胁。",
  "reasoning": [
    "入住与离开模式正常：日志显示老人通常在早上 7:00-8:30 之间起床并进入厨房/客厅开始日常活动，晚上在卧室停留直至次日清晨（如 2026-07-29 凌晨 00:30 卧室无人），跨天活动摘要中的房间占用计数稳定，符合独居老人的作息规律。",
    "温度数据合理：所有温度传感器读数均在正常范围内（约 24.1°C - 25.6°C）。虽然 Matter 协议中温度常以毫开尔文 (mK) 为单位报告（例如 2525 mK = 25.25°C），但数值波动平滑且无异常高温或低温漂移迹象，排除了火灾风险或传感器故障。",
    "关键安全事件逻辑自洽：入户门锁状态变化（LockState=2）发生在早晨开门时段，随后玄关和客厅立即检测到人员进入；厨房灶具关闭操作（OnOff=False）发生在上午 11:39，此时厨房有人且温度正常，属于正常的烹饪结束行为，未检测到未attended cooking 或烟雾报警触发。",
    "无异常传感器行为：所有运动传感器和接触传感器的状态切换均伴随合理的后续动作（如开门后灯亮、人走后灯灭），未发现传感器卡死、误报或长时间无响应导致的“异常不活跃”情况。"
  ],
  "key_evidence": [
    "2026-07-29T08:25:00 门锁解锁后立即检测到 entrance_occupancy=1，符合正常开门流程。",
    "2026-07-30T11:39:00 厨房灶具关闭时，厨房温度正常且有人在场，无烟雾报警器触发记录。",
    "连续三天（7/28-7/30）的卧室夜间占用模式一致，表明老人睡眠习惯稳定，无突发离家或跌倒后的长时间静止异常。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需干预。",
    "建议定期检查烟雾报警器和漏水传感器的电池及功能，确保其处于最佳工作状态。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light, kitchen_occupancy
- 已选事件数: 125

## 跨天活动摘要
- 2026-07-10: living_room=210, bedroom=242, kitchen=242, entrance=230, bathroom=63

## 设备事件日志
[2026-07-10T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-10T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-10T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-10T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-10T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-10T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-07-10T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-10T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-10T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-10T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-07-10T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2203
[2026-07-10T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-10T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-10T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-10T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-10T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-10T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-10T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-10T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-07-10T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-10T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-10T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-07-10T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-10T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-10T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-10T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2221
[2026-07-10T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-10T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-10T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2227
[2026-07-10T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-10T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2218
[2026-07-10T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-10T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-10T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-10T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-10T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2229
[2026-07-10T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-10T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2238
[2026-07-10T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-10T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-10T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-07-10T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-10T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-10T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-10T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-10T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-10T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-10T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-07-10T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-10T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-10T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-07-10T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-10T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-10T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-10T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-10T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-10T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-10T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-10T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-07-10T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-10T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-10T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-07-10T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-10T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-10T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-10T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-07-10T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-07-10T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-10T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-10T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-10T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-10T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-10T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-07-10T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-10T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-10T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-10T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-10T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-10T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-10T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-10T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-10T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-10T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-10T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-10T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-10T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-10T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-10T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-10T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-10T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-10T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409

## 任务
以下是过去一段时间的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "检测到厨房区域在无人状态下出现持续高温且温度异常升高，存在严重的火灾隐患。",
  "reasoning": [
    "推理步骤 1: 时间与环境分析。日志显示时间为凌晨 02:10 至 04:20，属于独居老人的夜间休息时段。在此期间，所有房间（包括客厅、卧室、卫生间、玄关）的运动传感器均报告 Occupancy = 0，确认屋内无人。",
    "推理步骤 2: 设备状态异常。尽管厨房无人，但厨房运动传感器在 02:10 和 02:35 曾短暂报告 Occupancy = 1（可能是宠物或误报），随后又变为 0。然而，厨房温度传感器读数从 02:10 的 23.26°C (2326mK) 开始持续攀升，至 04:15 达到峰值 24.15°C (2415mK)，并在最后时刻仍维持在高位。",
    "推理步骤 3: 物理规律违背。在无人操作且无其他热源（如空调开启记录未提及，且通常不会整夜全开导致如此高温）的情况下，厨房温度在短短两小时内上升超过 1 度并持续处于较高水平，这不符合正常热力学衰减规律。这种‘无人 + 持续升温’的模式高度疑似灶具干烧、电器故障或外部火源导致的早期火灾征兆。",
    "推理步骤 4: 风险评估。考虑到住户为独居老人，反应能力可能受限，若不及时干预，该异常升温极大概率会演变为明火或烟雾报警事件，构成直接的生命财产安全威胁。"
  ],
  "key_evidence": [
    "02:10 - 04:20 期间，除厨房外全屋运动传感器均为 0（无人），但厨房温度持续从 23.26°C 升至 24.15°C。",
    "厨房温度在无人状态下呈现非自然的持续上升趋势，且数值显著高于正常室温波动范围。",
    "厨房运动传感器在升温过程中曾出现短暂的'有人'信号（02:10, 02:35），随后消失，暗示可能存在移动的热源或间歇性活动后停止，加剧了风险不确定性。"
  ],
  "recommended_actions": [
    "立即远程通知家属或紧急联系人，告知厨房存在严重过热风险。",
    "触发本地声光警报（如果设备支持）以警示住户（假设其可能在附近或刚醒来）。",
    "建议系统自动拨打当地消防部门电话进行报备（需配置自动化规则）。",
    "检查厨房烟雾报警器是否已启动，若未启动则视为安全设备失效，需人工核查。"
  ]
}
```


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: 93

## 跨天活动摘要
- 2026-07-18: living_room=210, bedroom=242, kitchen=241, entrance=231, bathroom=58
- 2026-07-19: living_room=209, bedroom=240, kitchen=240, entrance=230, bathroom=61

## 设备事件日志
[2026-07-18T06:02:33] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-18T10:24:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:44:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:04:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:07:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-18T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-18T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-18T11:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-18T11:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-18T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-18T11:24:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-18T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-18T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-18T11:32:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-18T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-18T11:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-18T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-18T11:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-18T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-18T11:49:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-18T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-18T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-18T11:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-18T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-18T12:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:03:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-18T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-18T12:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-18T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-18T12:14:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-18T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-18T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-18T12:22:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-18T12:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:29:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-18T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-18T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-18T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-18T12:39:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-18T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-18T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-18T12:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-07-18T12:51:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-18T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-18T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-18T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-18T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-18T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-18T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-07-18T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-19T06:08:39] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-19T10:23:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T10:43:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:03:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-19T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-19T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-19T11:14:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-19T11:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-19T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-19T11:23:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-19T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-19T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-19T11:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-19T11:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:39:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-19T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-19T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-19T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-19T12:04:00] 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": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式正常，厨房烹饪行为受控，无未attended烹饪或安全隐患。",
  "reasoning": [
    "推理步骤 1: 分析厨房灶具 (kitchen_cook_surface) 状态。在 2026-07-18 和 2026-07-19 的两次事件中，灶具均先被开启 (On)，随后在几分钟内（约 3-5 分钟）即被关闭 (Off)。这种短时间、有人看管的烹饪模式符合正常家庭习惯，排除了'未attended_cooking'风险。",
    "推理步骤 2: 验证传感器数据一致性。温度传感器读数（如 living_room_temp_sensor 的 2545 对应 25.45°C）逻辑合理且随时间有自然波动；当灶具关闭后，厨房温度传感器短暂返回 None 是设备重启或重置的正常现象，并非故障。所有运动传感器 (occupancy) 的触发时间与人员移动逻辑一致（如进入玄关后客厅/卧室有人），未发现异常滞留或入侵迹象。",
    "推理步骤 3: 结合住户画像评估。针对'独居老人'这一高风险群体，重点检查了跌倒 (possible_fall) 和长时间无活动 (abnormal_inactivity)。日志中各房间频繁出现 occupancy=1 的状态，表明老人全天活动自如，生命体征活跃，未发现健康担忧或意外跌倒导致的静止模式。"
  ],
  "key_evidence": [
    "厨房灶具开启后均在 5 分钟内自动或手动关闭，且伴随厨房 occupancy=1，证明有人看管。",
    "全时段多房间运动传感器持续检测到人员活动，无长时间无人状态，排除独居老人意外跌倒或失联风险。",
    "温度传感器数值变化符合物理规律，无漂移或卡死现象。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需干预。",
    "建议定期查看烟雾报警器和漏水传感器的自检状态，确保硬件功能正常。"
  ]
}
```


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: 98

## 跨天活动摘要
- 2026-07-18: living_room=209, bedroom=240, kitchen=240, entrance=230, bathroom=61
- 2026-07-19: living_room=211, bedroom=240, kitchen=240, entrance=231, bathroom=62

## 设备事件日志
[2026-07-18T06:08:39] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-18T10:23:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:43:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:03:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-18T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-18T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-18T11:14:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-18T11:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-18T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-18T11:23:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-18T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-18T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-18T11:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-18T11:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:39:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-18T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-18T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-18T11:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-18T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-18T11:48:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-18T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-18T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-18T11:59:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-18T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-18T12:03:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-18T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-18T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-18T12:08:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-18T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-18T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-18T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-18T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-18T12:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-18T12:28:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-18T12:33:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-18T12:36:00] living_room_light | OnOff.OnOff = False
[2026-07-18T12:36:16] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-18T12:39:50] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-07-18T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-18T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-18T12:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:49:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-18T12:51:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:53:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-18T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-18T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-18T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-18T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-18T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-18T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-18T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-18T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-18T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-18T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-19T06:07:33] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-19T10:20:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T10:40:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-19T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-19T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-19T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-19T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-19T11:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-19T11:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:15:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-19T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-19T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-19T11:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:35:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:37:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-19T11:38:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-19T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-19T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-19T12:04:00] 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": "unattended_cooking",
  "threat_description": "检测到厨房灶具在无人持续监控的情况下被反复开启和关闭，且存在长时间无人值守的烹饪状态，对独居老人构成严重火灾风险。",
  "reasoning": [
    "推理步骤 1: 分析日志发现，2026-07-18 期间厨房灶具 (kitchen_cook_surface) 在 11:39 关闭后，于 12:00 再次开启，仅间隔 21 分钟；随后在 12:05 又被关闭。这种短时间内频繁启停的行为不符合正常烹饪习惯，暗示可能存在设备故障、误触或用户操作困难导致的异常循环。",
    "推理步骤 2: 关键风险点在于 12:00 至 12:05 这短短 5 分钟内，虽然灶具处于开启状态，但厨房运动传感器 (kitchen_occupancy) 直到 12:24 才报告有人 (Occupancy=1)。这意味着在灶具开启后的前几分钟内，系统判定厨房内无人，形成了‘无人看管下的烹饪’高危场景。",
    "推理步骤 3: 结合住户为‘独居老人’的背景，若老人行动不便或反应迟缓，未能及时察觉灶具开启或离开厨房，极易引发火灾事故。此外，2026-07-19 也出现了类似的快速开启 - 关闭模式 (12:00 开，12:04 关)，表明该异常模式具有持续性，非偶然事件。"
  ],
  "key_evidence": [
    "2026-07-18T12:00:00 灶具开启，但直到 T12:24:00 厨房运动传感器才检测到人员，中间存在约 24 分钟的无人看管烹饪窗口期（考虑到老人可能移动缓慢或传感器延迟）。",
    "2026-07-18T12:00:00 到 T12:05:00 之间，灶具开启状态下，厨房 occupancy 长期未更新或保持为 0（相对于后续检测到的时间），显示缺乏实时人工干预。",
    "跨天重复模式：两天均在中午时段出现灶具短暂开启后立即关闭的行为，且伴随温度读数波动，提示可能存在自动复位或误操作。"
  ],
  "recommended_actions": [
    "立即检查厨房灶具硬件状态，确认是否存在温控器故障导致自动启停，或按钮卡滞问题。",
    "建议安装或启用带有‘离人自动断电’功能的智能插座或烟雾报警器联动机制，一旦检测到厨房无人超过设定时间（如 5 分钟）且灶具开启，自动切断电源。",
    "联系家属或社区服务人员，确认老人近期身体状况及操作家电的能力，必要时提供辅助提醒设备。"
  ]
}
```