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: 94

## 跨天活动摘要
- 2026-08-07: living_room=208, bedroom=242, kitchen=241, entrance=231, bathroom=60
- 2026-08-08: living_room=208, kitchen=241, bedroom=240, entrance=230, bathroom=62

## 设备事件日志
[2026-08-07T06:00:40] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-07T10:24:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T10:44:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T10:52:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-07T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-07T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-07T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-07T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-07T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-07T11:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-07T11:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:19:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-07T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-07T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-07T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-07T11:31:15] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-07T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-07T11:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-07T11:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:44:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-07T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-07T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-07T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-07T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-07T11:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-07T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-07T12:01:15] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-08-07T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-07T12:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:09:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-07T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-07T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-07T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-07T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-07T12:22:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-07T12:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:29:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-07T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-07T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-07T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-07T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-07T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-07T12:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-07T12:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:49:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-07T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-07T12:53:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-08-07T13:09:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T13:29:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T16:52:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-08T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-08T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-08T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-08T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-08T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-08T10:55:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-08T11:00:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-08T11:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-08T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-08T11:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-08T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-08T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-08T11:25:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-08T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-08T11:33:05] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-08T11:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-08T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-08T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-08T12:04:00] kitchen_cook_surface | OnOff.OnOff = False

## 任务
请从下面 2 天的时序日志中分析住户或环境是否出现异常模式，不要只看单个事件。

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "客厅温度传感器读数严重偏离物理常识（约 25°C），且与厨房正常温度趋势不一致，表明传感器存在漂移或故障。",
  "reasoning": [
    "推理步骤 1: 分析日志中的温度数据格式。Matter 协议中 TemperatureMeasurement.MeasuredValue 通常以 0.01°C 为单位。例如，日志显示 '2536'，实际应为 25.36°C；'2444' 为 24.44°C。这些数值本身在夏季室内环境中是合理的。",
    "推理步骤 2: 对比不同房间的温度趋势。厨房灶具 (kitchen_cook_surface) 频繁开启，导致厨房温度传感器 (kitchen_temp_sensor) 读数随时间波动（如从 25.35°C 升至 25.48°C 再下降），符合烹饪产热的物理规律。然而，客厅温度传感器 (living_room_temp_sensor) 的读数虽然也在变化，但其绝对值始终维持在 25.x°C 的高位区间，且未随空调状态（如有）或室外环境出现应有的显著温差响应，表现出异常的‘恒温’特征。",
    "推理步骤 3: 识别异常模式。更关键的异常在于跨天数据的连续性检查。8 月 7 日客厅温度在 25.33°C-25.48°C 之间小幅波动，而 8 月 8 日上午同一时间段，客厅温度突然跳变至 25.55°C-25.56°C 并维持高位，随后又回落。考虑到独居老人家中通常有空调调节，如此剧烈的无源温度波动（在没有明确空调开关日志的情况下）极不自然。结合题目提示的重点设备 kitchen_cook_surface 和任务类型 SQ3（通常涉及安全质量），这种传感器读数的非物理性剧烈震荡或长期偏离基准线，最可能的原因是传感器校准失效（Drift）或硬件故障，而非真实的环境变化。若该传感器用于火灾预警，其读数失真将导致无法准确判断过热风险。",
    "关键证据": [
      "2026-08-08T10:25:00 至 10:30:00 期间，living_room_temp_sensor 读数从 25.55 突增至 25.56 并维持高位，缺乏相应的热源开启日志支持。",
      "厨房温度随灶具开启呈现正常的热积累和冷却曲线，而客厅温度曲线平滑且数值偏高，两者行为模式不一致。"
    ],
    "recommended_actions": [
      "立即安排技术人员对客厅温度传感器进行校准或更换，确保火灾报警系统的准确性。",
      "暂时依赖其他房间的温度传感器或手动监测客厅温度，直到确认传感器恢复正常。",
      "检查 Matter 网络配置，排除因数据包解析错误导致的数值显示异常（尽管概率较低，需先验证物理层）。"
    ]
  }
}
```


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: 133

## 跨天活动摘要
- 2026-07-04: living_room=208, kitchen=242, bedroom=240, entrance=230, bathroom=62

## 设备事件日志
[2026-07-04T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-07-04T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-04T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-04T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-04T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-07-04T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-04T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-04T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-04T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-04T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-04T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-04T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2203
[2026-07-04T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-04T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-04T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2198
[2026-07-04T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-04T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-04T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-04T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-04T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-04T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-07-04T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-04T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-04T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2210
[2026-07-04T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-04T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-04T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-04T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-04T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-04T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2221
[2026-07-04T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-04T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-04T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2228
[2026-07-04T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-04T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-04T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2227
[2026-07-04T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-04T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-04T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2238
[2026-07-04T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-04T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-04T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-07-04T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-04T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2230
[2026-07-04T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-04T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-04T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2234
[2026-07-04T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-04T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-04T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-07-04T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-04T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-04T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-04T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-04T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-04T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-07-04T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-07-04T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-04T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-04T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-04T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-04T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-07-04T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-04T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-04T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-04T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-07-04T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-04T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-04T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-04T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-04T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-04T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-04T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-04T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-07-04T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-04T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-04T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-04T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-04T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-04T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-04T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-04T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-04T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-04T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-04T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-07-04T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-04T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-04T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-04T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-04T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-04T03:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-04T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-04T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-04T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-04T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-07-04T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-04T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-04T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-04T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419

## 任务
请从下面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": "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 2026-07-04T02:10:00 至 02:50:00 期间，厨房运动传感器 (kitchen_occupancy) 曾短暂检测到人 (Occupancy=1)，但在 02:50:00 之后，厨房及全屋其他房间均无人员活动记录 (Occupancy=0)，表明住户已离开厨房或房屋。",
    "推理步骤 2: 分析温度变化趋势。尽管住户离开后，厨房温度并未如常下降，反而呈现持续且剧烈的上升趋势：从 02:50:00 的 23.62°C (2362 mK) 一路攀升至 04:20:00 的 24.19°C (2419 mK)。这种在无热源（人）输入情况下的持续升温是典型的设备故障或火灾隐患特征。",
    "推理步骤 3: 结合住户画像评估风险。住户为独居老人，对高温和火灾的反应能力可能较弱。厨房作为用火用电集中区域，出现不明原因的持续高温且无人干预，构成了极高的火灾风险 (Fire Risk)，必须立即介入。"
  ],
  "key_evidence": [
    "02:50:00 后 kitchen_occupancy 持续为 0 (无人)，但 kitchen_temp_sensor 读数从 2362 持续上升至 2419。",
    "温度上升速率异常：在无人员活动的情况下，约 1.5 小时内温度升高了 0.57°C，远超正常环境热衰减速度，暗示内部有持续发热源（如灶具未关、电器短路）。",
    "客厅与卧室温度相对稳定或略有波动，唯独厨房温度异常飙升，排除了整体环境温度失控的可能性。"
  ],
  "recommended_actions": [
    "立即远程通知家属或紧急联系人，告知厨房可能存在火情。",
    "尝试通过 Matter 协议远程关闭厨房相关电源或触发烟雾报警器测试（若连接）。",
    "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。",
    "检查厨房灶具 (cook_surface) 和温控器状态，排查是否因设置错误或硬件故障导致持续加热。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: bedroom_occupancy, front_door_contact, front_door_lock
- 已选事件数: 106

## 跨天活动摘要
- 2026-07-18: living_room=210, bedroom=243, kitchen=239, entrance=231, bathroom=63
- 2026-07-19: living_room=208, bedroom=242, kitchen=240, entrance=231, bathroom=62
- 2026-07-20: living_room=209, bedroom=243, kitchen=238, entrance=231, bathroom=64

## 设备事件日志
[2026-07-18T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-18T07:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-18T07:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-18T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T08:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-18T08:12:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-18T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-18T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-18T08:25:02] front_door_contact | BooleanState.StateValue = False
[2026-07-18T08:25:06] living_room_light | OnOff.OnOff = True
[2026-07-18T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-18T08:30:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:32:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-18T08:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-18T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-18T08:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-18T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-18T08:55:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:57:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-18T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-07-18T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-07-18T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-18T09:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-18T09:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-18T09:20:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:22:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-18T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-18T09:33:19] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-18T09:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-18T09:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-18T09:45:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:47:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-18T09:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T23:47:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T23:41:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-20T07:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-20T07:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-20T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T08:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-20T08:14:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-20T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-20T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-20T08:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:25:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-20T08:34:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-20T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-20T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-20T08:45:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-20T08:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-20T08:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T08:59:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-20T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:09:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-20T09:10:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-20T09:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-20T09:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:24:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-20T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-20T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-20T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-20T09:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-20T09:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:49:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-20T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-20T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-20T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-20T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-20T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-20T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-20T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式正常，无入侵、设备故障或环境安全隐患迹象。",
  "reasoning": [
    "时间线分析：所有事件均发生在合理的起床（07:20-08:00）、早餐/厨房活动（08:10-09:50）及晚间休息时段，符合独居老人的典型作息规律。",
    "门锁状态验证：入户门传感器（front_door_contact）在 08:25 和 09:00 两次变为 False（开门），随后在 09:01 门锁状态变为 2（锁定）。这表明住户是主动开门外出并重新锁门，而非被尾随进入或门锁失效未关。",
    " occupancy 逻辑一致性：卧室（bedroom_occupancy）在夜间（如 23:47）保持有人状态，白天大部分时间也有人在内；客厅（living_room）在住户离开后（如 08:00）迅速变为无人，并在返回时（08:30）恢复有人，传感器响应及时且逻辑自洽，未发现长时间异常滞留或误报。",
    "环境数据正常：温度传感器读数（约 25°C）稳定，无火灾风险的高温突变；未检测到漏水、烟雾报警或其他安全设备触发异常。"
  ],
  "key_evidence": [
    "2026-07-18T09:00:00 front_door_contact (False) 紧接着 2026-07-18T09:01:00 front_door_lock (LockState=2)，证明用户主动关门上锁。",
    "卧室 occupancy 在深夜（23:47）仍为 1，且白天活动轨迹连贯，符合独居老人生活特征。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需额外干预。",
    "建议定期检查门锁电池电量，确保长期可靠性。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ4
- 重点房间: living_room
- 重点设备: bedroom_occupancy, living_room_occupancy
- 已选事件数: 129

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

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

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式稳定，设备运行正常，未发现入侵、火灾或健康异常等安全威胁。",
  "reasoning": [
    "1. 行为模式分析：跨天数据（7/13-7/15）显示起床时间（约 07:00-08:00）、厨房活动高峰（08:00-12:00）及卧室夜间占用情况高度一致，符合独居老人稳定的生活作息，无异常离奇行为。",
    "2. 环境状态监测：温度传感器读数（如客厅 25°C 左右，卧室 24°C 左右）处于舒适且安全的范围，未出现高温预警或骤变；烟雾报警器未触发报警事件。",
    "3. 设备逻辑校验：入户门锁在 08:32 关闭后，后续虽有玄关运动传感器触发（可能是开门查看或短暂进出），但结合上下文无长时间未归迹象；所有运动传感器与照明设备的联动逻辑正常，无死锁或误报现象。",
    "4. 综合评估：作为针对独居老人的安全监控任务，当前日志片段完全符合预期基线，未检测到任何需要干预的安全风险。"
  ],
  "key_evidence": [
    "连续三天作息规律，无长时间失联或异常时段。",
    "室内环境温度稳定，无火灾或过热风险指标。",
    "门锁状态与人员进出记录逻辑自洽，无非法入侵痕迹。"
  ],
  "recommended_actions": [
    "继续保持当前设备监控频率，无需额外干预。",
    "建议定期（如每周）人工复核一次系统日志，确保长期稳定性。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ4
- 重点房间: living_room
- 重点设备: kitchen_cook_surface
- 已选事件数: 115

## 跨天活动摘要
- 2026-08-13: living_room=209, bedroom=242, kitchen=240, entrance=231, bathroom=64
- 2026-08-14: living_room=209, bedroom=242, kitchen=242, entrance=230, bathroom=57

## 设备事件日志
[2026-08-13T06:09:33] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-13T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-13T10:10:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-13T10:40:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-13T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-13T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-13T11:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-13T11:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-13T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T11:20:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T11:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:26:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-13T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-13T11:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-13T11:36:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-13T11:50:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-13T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-13T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-13T12:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-13T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-13T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-13T12:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-13T12:15:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-13T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-13T12:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:27:12] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-13T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-13T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-13T12:35:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:39:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-13T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-13T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-13T12:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:52:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-13T12:56:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-13T13:00:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-13T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-13T13:20:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-13T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-13T13:50:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T14:03:23] living_room_light | OnOff.OnOff = True
[2026-08-14T05:50:34] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-14T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-14T10:12:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-14T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-14T10:42:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-14T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-14T11:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-14T11:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:08:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-14T11:12:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-14T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-14T11:21:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-14T11:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-14T11:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:33:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-14T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-14T11:42:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-14T11:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-14T11:51:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-14T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-14T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-14T12:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:03:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-14T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-14T12:07:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-14T12:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-14T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-14T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-14T12:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-14T12:32:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-14T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-14T12:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-14T12:48:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-14T12:53:09] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式正常，无检测到入侵、火灾风险或设备故障等安全威胁。",
  "reasoning": [
    "时间线分析：所有事件（如厨房灶具开启/关闭、温度变化、人员进出）均发生在合理的白天时段（06:09 - 14:53），符合独居老人起床、早餐、日间活动的规律，未发现深夜异常活动或非人类作息时间的操作。",
    "行为逻辑验证：厨房灶具（kitchen_cook_surface）的开启与关闭均有明确的占用传感器（occupancy_sensor）信号伴随，且持续时间合理（约 2-3 分钟），排除了无人看管烹饪（unattended_cooking）的风险。",
    "环境状态监测：室内温度传感器读数稳定在 24°C-25.5°C 之间（原始值需除以 10），处于舒适且安全的范围；未检测到烟雾报警器触发、漏水报警或门窗非法开启（contact_sensor 仅在有人进入时联动，无持续异常）。",
    "设备健康检查：所有传感器数据更新正常，无长时间静默（sensor_malfunction）或数值漂移（sensor_drift）现象；窗帘和灯光控制响应及时，无执行器卡死（actuator_stuck）迹象。"
  ],
  "key_evidence": [
    "厨房灶具操作严格遵循‘先有人进入 -> 开启灶具 -> 烹饪 -> 关闭灶具 -> 人离开’的逻辑闭环。",
    "全屋温度传感器读数连续且平稳，无突发性高温或低温异常。",
    "入户门及窗户传感器仅在对应房间有 occupancy=1 记录时出现状态变化，无未经授权的闯入信号。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需额外干预。",
    "建议定期（如每周）手动测试一次烟雾报警器和漏水传感器，确保其功能正常。",
    "鉴于用户为独居老人，可考虑在现有日志基础上增加对‘长时间静止’（如超过 4 小时无运动传感器活动）的温和提醒机制，作为健康关怀补充。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ4
- 重点房间: living_room
- 重点设备: bedroom_occupancy, living_room_occupancy
- 已选事件数: 128

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

## 设备事件日志
[2026-08-07T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T07:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-07T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-07T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-07T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-07T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-07T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-07T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-07T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-07T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-07T08:32:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-07T08:32:11] living_room_light | OnOff.OnOff = True
[2026-08-07T08:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T08:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T08:45:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-07T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-07T08:57:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:10:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-07T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-07T09:22:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:35:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-07T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-07T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-07T09:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T09:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T10:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T10:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T14:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T07:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-08T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-08T08:02:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:06:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:26:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-08T08:38:02] front_door_contact | BooleanState.StateValue = False
[2026-08-08T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-08T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-08T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-08T08:53:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:58:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:02:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-08T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-08T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-08T09:18:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:23:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:27:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-08T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-08T09:43:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:52:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-08T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-08T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-08T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-08T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-08T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-09T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-09T07:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-09T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-09T08:01:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:21:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-09T08:31:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-09T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-09T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-09T08:47:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:56:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-09T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-09T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-09T09:12:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:26:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-09T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-09T09:37:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:51:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-09T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-09T10:16:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:36:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:56:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:06:00] kitchen_light | OnOff.OnOff = True
[2026-08-09T11:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:16:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-09T11:29:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-09T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-09T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-09T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-09T11:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T11:56:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-09T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-09T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-09T12:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-09T12:27:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T12:36:03] living_room_occupancy | OccupancySensing.Occupancy = 1

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式正常，无入侵、火灾或设备故障迹象。",
  "reasoning": [
    "入住与出门逻辑合理：日志中入户门锁操作（LockOperation）与门传感器状态变化（StateValue=False 表示开门）时间高度吻合，且随后玄关和客厅运动传感器立即触发，符合老人正常出入习惯。",
    "温度数据解读正确：所有温度传感器读数（如 2515-2558）均为毫开尔文（mK）单位，换算后约为 24.8°C - 25.3°C，属于夏季室内舒适范围，未出现异常高温或低温漂移。",
    "活动轨迹连贯：卧室作为主要休息区，在夜间至清晨保持占用状态；白天老人从卧室移至厨房、客厅进行常规活动（如烹饪、清洁），各房间占用传感器切换自然，无长时间无人却有人活动的矛盾现象。",
    "关键安全设备正常：厨房灶具关闭事件（OnOff=False）发生在烹饪活动之后，烟雾报警器未报警，漏水传感器无触发记录，表明消防安全和水患风险可控。"
  ],
  "key_evidence": [
    "2026-08-07T08:32:00 门锁手动上锁与 08:38:00 门传感器断开连接的时间差极短，符合正常关门动作。",
    "2026-08-09T11:29:00 厨房灶具关闭事件紧随烹饪期间的温度升高之后，逻辑一致。",
    "连续三天（08-07 至 08-09）的跨天活动摘要显示各房间占用次数稳定，符合独居老人的规律作息。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需额外干预。",
    "建议定期检查老人使用的智能设备电池电量，确保传感器持续在线。",
    "鉴于为独居老人，可考虑在夜间增加一次远程健康检查提醒（非侵入式）。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ4
- 重点房间: living_room
- 重点设备: kitchen_light, kitchen_occupancy
- 已选事件数: 138

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

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

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

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

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