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: 102

## 跨天活动摘要
- 2026-07-16: living_room=210, bedroom=240, kitchen=237, entrance=231, bathroom=65
- 2026-07-17: living_room=210, bedroom=240, kitchen=238, entrance=230, bathroom=59
- 2026-07-18: living_room=209, bedroom=243, kitchen=240, entrance=230, bathroom=58

## 设备事件日志
[2026-07-16T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-16T07:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-16T07:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-16T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T08:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-16T08:13:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-16T08:23:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-16T08:23:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-16T08:28:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-16T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-16T08:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:38:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-16T08:43:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-16T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-16T08:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-16T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-16T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-07-16T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-07-16T09:03:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-16T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-16T09:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-16T09:23:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-16T09:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:28:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-16T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-16T09:39:02] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-16T09:43:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-16T09:48:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-16T09:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T20:50:05] front_door_lock | DoorLock.LockState = 1
[2026-07-17T07:03:15] front_door_lock | DoorLock.LockState = 1
[2026-07-17T20:43:13] front_door_lock | DoorLock.LockState = 1
[2026-07-18T07:05:12] front_door_lock | DoorLock.LockState = 1
[2026-07-18T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-18T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T07:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-18T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-18T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-18T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-18T08:10:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-18T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-18T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-18T08:25:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-18T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T08:33:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-18T08:33:02] front_door_contact | BooleanState.StateValue = False
[2026-07-18T08:33:11] living_room_light | OnOff.OnOff = True
[2026-07-18T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-18T08:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-18T08:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-18T08:45:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:48:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-18T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-18T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-18T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:03:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-18T09:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-18T09:10:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:13:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-18T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-18T09:20:33] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-18T09:28:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-18T09:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-18T09:35:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:38:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-18T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-18T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-18T09:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "过去三天的设备日志显示独居老人的日常活动模式正常，无入侵、异常操作或安全隐患迹象。",
  "reasoning": [
    "时间线分析：所有事件均发生在合理的作息时间内（早晨 07:00-09:50 为起床/出门时段，晚上 20:43-20:50 为归家/锁门时段），符合独居老人的生活习惯。",
    "门锁逻辑验证：入户门锁状态变化（LockState=1 解锁，LockState=2 锁定）与接触传感器（front_door_contact=False 开门）及玄关运动传感器（entrance_occupancy=1）的触发顺序完全一致，表明是住户正常的进出行为，而非尾随或非法闯入。",
    "环境数据合理性：室内温度传感器读数在 24.3°C - 25.6°C 之间波动，属于舒适且安全的范围；各房间 occupancy 状态变化连贯，未发现长时间无人却持续加热或冷却等异常能耗模式。",
    "跨天模式一致性：三天内的活动摘要和关键事件时间点高度重合，显示出稳定的生活规律，排除了突发健康危机或长期滞留的风险。"
  ],
  "key_evidence": [
    "2026-07-16T08:23:00 至 09:01:00 期间，门锁手动解锁、开门、人员进入、随后自动上锁的完整闭环流程正常。",
    "2026-07-18T08:33:00 至 08:33:11 期间，门锁解锁后立即伴随灯光开启和人员移动，符合正常晨间活动特征。",
    "连续三天晚间约 20:45 左右出现门锁锁定事件，且白天无其他非正常时段的活动记录。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期检查老人使用的智能门锁电池电量，确保其可靠性。",
    "可考虑设置简单的‘未检测到夜间活动’提醒，作为额外的安全冗余（当前日志未显示此需求）。"
  ]
}
```


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: 127

## 跨天活动摘要
- 2026-07-16: living_room=210, kitchen=241, bedroom=240, entrance=230, bathroom=59

## 设备事件日志
[2026-07-16T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-16T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-16T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-16T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-07-16T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-16T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-16T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-16T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-07-16T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-16T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-07-16T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-16T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2198
[2026-07-16T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-16T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-16T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-07-16T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-16T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-16T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-16T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-16T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2212
[2026-07-16T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-16T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-16T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-16T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-16T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-07-16T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-16T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-16T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-07-16T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-07-16T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-16T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-07-16T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-16T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-16T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-07-16T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-16T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-16T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2238
[2026-07-16T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-16T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-16T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-07-16T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-16T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-16T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2225
[2026-07-16T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-16T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-16T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-16T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-07-16T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-16T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-16T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-07-16T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-16T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-16T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-07-16T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-16T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-16T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-16T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-16T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-16T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-16T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-16T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-16T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-07-16T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-16T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-16T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-16T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-16T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-16T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-16T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-16T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-16T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-07-16T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-16T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-16T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-16T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-16T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-16T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-16T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-16T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-16T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-16T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-16T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-07-16T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-16T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-16T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-16T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-16T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-16T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-16T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-16T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-16T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-16T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-16T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "厨房在无人状态下出现持续高温且温度异常升高，存在严重的火灾隐患。",
  "reasoning": [
    "推理步骤 1: 时间与环境分析。日志显示时间为凌晨 02:10 至 04:20，此时所有房间（包括客厅、卧室、卫生间、玄关）的运动传感器均报告 Occupancy = 0，确认家中无人在场。",
    "推理步骤 2: 设备状态异常。尽管厨房运动传感器在大部分时间报告为 0，但在 02:35 和 02:50 短暂检测到有人（Occupancy=1），随后又变为 0。然而，厨房温度传感器读数从 02:10 的 23.27°C (2327mK) 开始持续攀升，至 04:20 达到 24.12°C (2412mK)，升温速率极快且幅度巨大。",
    "推理步骤 3: 关联风险判断。对于独居老人家庭，夜间无人时厨房温度异常飙升通常意味着灶具（cook_surface）可能处于开启状态但未被察觉，或者发生了其他热源故障。考虑到温度已超过正常室温并持续上升，这构成了极高的火灾风险（unattended cooking leading to fire risk）。"
  ],
  "key_evidence": [
    "02:10 - 04:20 期间，除厨房外所有区域 occupancy 均为 0，表明无人看管。",
    "厨房温度从 02:10 的 23.27°C 急剧上升至 04:20 的 24.12°C，且在无人状态下持续升温。",
    "厨房灯光在 02:50 被打开，但随后在 03:00 及之后未再关闭或有人离开迹象，暗示可能存在操作失误或设备失控。"
  ],
  "recommended_actions": [
    "立即远程切断厨房电源或关闭智能灶具，防止火势蔓延。",
    "向住户发送紧急警报通知其回家检查厨房情况。",
    "联系当地消防部门进行预防性检查（如果系统支持自动报警联动）。",
    "检查厨房烟雾报警器是否正常工作，确保其能发出声音警报。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light, kitchen_occupancy
- 已选事件数: 128

## 跨天活动摘要
- 2026-07-12: living_room=209, kitchen=243, bedroom=242, entrance=230, bathroom=58

## 设备事件日志
[2026-07-12T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-07-12T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-12T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-12T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-07-12T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-07-12T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-12T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-12T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-12T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-12T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2206
[2026-07-12T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-12T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2205
[2026-07-12T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-12T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-12T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2201
[2026-07-12T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-12T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-12T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2210
[2026-07-12T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-12T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-12T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-07-12T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-12T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2225
[2026-07-12T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-12T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-12T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2230
[2026-07-12T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-12T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-07-12T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-12T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-12T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-12T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-12T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-12T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-12T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-07-12T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-07-12T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-12T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2238
[2026-07-12T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-12T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-07-12T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-07-12T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-12T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-12T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-07-12T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-07-12T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-07-12T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-07-12T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-12T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-12T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-12T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-12T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-12T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-12T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-12T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-12T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-12T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-07-12T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-12T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-12T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-12T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-07-12T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-12T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-12T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-12T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-12T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-07-12T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-12T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-12T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-12T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-12T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-12T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-07-12T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-12T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-12T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-07-12T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-12T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-12T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-07-12T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-12T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-12T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-12T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-12T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-12T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-12T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-12T03:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-12T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-12T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-12T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-12T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-07-12T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-12T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-12T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-12T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "检测到厨房区域在无人状态下出现异常高温持续上升，且伴随灯光开启，存在极高的火灾风险。",
  "reasoning": [
    "推理步骤 1: 时间与环境分析。日志显示时间为凌晨 02:10 至 04:20，此时独居老人通常处于睡眠状态（卧室温度稳定在 22°C 左右，而客厅/厨房温度显著升高），所有房间的运动传感器均报告 Occupancy = 0，确认屋内无人。",
    "推理步骤 2: 温度异常模式识别。厨房温度传感器读数从 02:10 的 23.4°C (2340 mK) 开始，呈现持续且快速的上升趋势，至 04:00 达到峰值 24.1°C (2410 mK)，温差超过 0.7°C。这种在无人员活动的情况下，特定房间温度持续攀升的现象不符合正常散热规律，强烈暗示有热源产生。",
    "推理步骤 3: 关联设备行为验证。在温度急剧上升期间（02:50），厨房灯光被意外开启 (OnOff.OnOff = True)。虽然灯光本身发热量不足以导致如此高的温升，但这可能是自动联动或误操作的结果，进一步佐证了该区域存在非正常的电气活动或设备故障（如灶具未关、烤箱过热等）。考虑到是独居老人家庭，夜间无人看管下的热源失控属于最高优先级的火灾隐患。"
  ],
  "key_evidence": [
    "02:10 - 04:00 期间，kitchen_temp_sensor 读数从 2340 持续上升至 2410，且全程 kitchen_occupancy 为 0。",
    "02:50 时 kitchen_light 突然变为 True，发生在温度快速爬升阶段。",
    "同一时间段内，bedroom_temp_sensor 保持稳定 (约 2200-2280)，排除了全屋环境温度普遍升高的可能性。"
  ],
  "recommended_actions": [
    "立即远程通知住户或其紧急联系人，告知可能存在厨房火灾隐患。",
    "若系统具备联动能力，尝试远程关闭厨房电源或触发烟雾报警器测试（需确认安全协议允许）。",
    "建议检查厨房智能插座或灶具设备的固件及状态，排查是否存在过热保护失效或未正确关闭的情况。"
  ]
}
```


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: 139

## 跨天活动摘要
- 2026-08-17: living_room=208, bedroom=241, kitchen=241, entrance=231, bathroom=61

## 设备事件日志
[2026-08-17T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T00:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-17T00:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-08-17T00:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-08-17T00:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-08-17T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-08-17T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-08-17T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-08-17T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-08-17T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-08-17T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-17T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-17T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-17T01:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2206
[2026-08-17T01:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-08-17T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-17T01:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2197
[2026-08-17T01:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-08-17T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-17T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2212
[2026-08-17T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-08-17T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-17T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-08-17T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-17T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-08-17T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-17T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-17T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-08-17T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-08-17T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-08-17T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-08-17T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-17T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-17T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-08-17T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-17T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-08-17T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2210
[2026-08-17T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2217
[2026-08-17T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-17T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-08-17T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-17T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-08-17T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2221
[2026-08-17T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-08-17T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-08-17T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-08-17T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-17T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-17T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2226
[2026-08-17T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-17T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-17T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-08-17T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-08-17T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-17T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2237
[2026-08-17T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-08-17T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-08-17T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-08-17T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-08-17T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-17T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2238
[2026-08-17T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-17T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-08-17T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2240
[2026-08-17T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-17T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-17T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-08-17T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-08-17T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-08-17T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-08-17T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-08-17T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-17T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-08-17T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-17T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-08-17T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-17T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-17T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-17T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-17T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-08-17T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-17T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-08-17T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-08-17T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-08-17T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-08-17T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-17T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-17T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-08-17T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-17T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-17T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-08-17T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-08-17T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-08-17T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-08-17T03:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-17T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-17T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-17T03:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-08-17T03:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-17T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-08-17T03:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-17T03:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-08-17T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-08-17T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-08-17T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-08-17T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "厨房温度持续异常升高且伴随无人值守状态，存在极高的火灾风险。",
  "reasoning": [
    "推理步骤 1: 时间与环境分析。日志显示时间为凌晨 02:10 至 04:10，属于独居老人的夜间睡眠时段。在此期间，所有房间（包括客厅、卧室、卫生间、玄关）的运动传感器均报告 Occupancy = 0，确认屋内无人。",
    "推理步骤 2: 设备状态异常检测。尽管屋内无人，厨房温度传感器 (kitchen_temp_sensor) 读数从 02:10 的 2330mK (约 23.3°C) 开始持续攀升，在 03:50 达到峰值 2402mK (约 24.0°C)，并在后续时间点维持在极高水平。对于无人操作的厨房，这种持续升温不符合正常散热规律，暗示有热源持续工作。",
    "推理步骤 3: 关联事件验证。在 02:50 出现了 kitchen_light 开启的事件 (OnOff.OnOff = True)。虽然灯光开启本身不产生高温，但结合随后温度的急剧上升和长时间无人看管的状态，高度怀疑灶具 (cook_surface) 或其他加热设备被意外开启或故障，导致在无人的情况下持续加热，构成严重的火灾隐患。"
  ],
  "key_evidence": [
    "02:10 - 04:10 期间所有房间运动传感器均为 0 (无人)",
    "厨房温度在无人状态下从 ~23.3°C 持续上升至 ~24.0°C 并维持高位",
    "02:50 检测到厨房灯光开启，可能掩盖了其他设备的误操作"
  ],
  "recommended_actions": [
    "立即远程通知家属或紧急联系人，告知可能存在厨房火险。",
    "若系统支持，尝试通过 Matter 协议远程关闭厨房相关设备（如灶具或灯光），以防万一。",
    "建议检查厨房烟雾报警器状态，确保其处于正常工作模式以便及时报警。",
    "待老人醒来后，需人工检查厨房是否有遗留火源或设备故障。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ4
- 重点房间: living_room
- 重点设备: kitchen_cook_surface
- 已选事件数: 116

## 跨天活动摘要
- 2026-07-21: living_room=209, kitchen=242, bedroom=241, entrance=231, bathroom=61
- 2026-07-22: living_room=209, kitchen=243, bedroom=241, entrance=230, bathroom=61

## 设备事件日志
[2026-07-21T05:51:37] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-21T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-21T10:12:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-21T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-21T10:42:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-21T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-21T11:02:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-21T11:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:10:00] kitchen_light | OnOff.OnOff = True
[2026-07-21T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-21T11:11:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-21T11:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-21T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-21T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-21T11:27:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:32:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-21T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-21T11:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-21T11:47:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-21T11:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-21T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-21T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-21T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-21T12:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-21T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-21T12:12:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-21T12:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-21T12:22:19] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-21T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-21T12:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-07-21T12:37:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-21T12:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-07-21T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-21T12:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-21T12:55:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-21T13:02:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-21T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-21T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-21T13:32:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-21T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-21T14:02:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T05:52:33] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-22T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-22T10:13:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-22T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-22T10:43:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-22T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-22T11:03:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-22T11:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:08:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-22T11:13:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-22T11:20:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-22T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-22T11:23:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:23:11] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-22T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-22T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-22T11:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-22T11:43:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-22T11:48:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-22T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-22T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-22T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-22T12:03:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-22T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-22T12:08:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-22T12:13:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-22T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-22T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-22T12:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:26:10] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-22T12:28:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-22T12:33:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-22T12:38:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-22T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-22T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-22T12:53:11] bathroom_occupancy | OccupancySensing.Occupancy = 0

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "家庭环境运行正常，所有设备状态符合独居老人的日常作息规律，未发现安全威胁或异常行为。",
  "reasoning": [
    "时间序列分析显示，厨房灶具 (kitchen_cook_surface) 的开启与关闭均发生在白天活跃时段（约 12:00），且每次开启后不久即有温度传感器读数变化并迅速关闭，符合正常的烹饪流程，不存在无人看管烹饪风险。",
    " occupancy_sensor（运动传感器）日志显示，在老人起床后的整个上午和中午时段，living_room、bedroom、entrance 等关键区域持续检测到人员活动（Occupancy=1），表明住户处于清醒且活跃状态，排除了跌倒后长时间无反应或健康突发状况导致的不活动风险。",
    " 温度传感器数据（如 living_room_temp_sensor 的 2539-2558 值对应 25.4°C-25.6°C）均在舒适范围内，且数值随时间平滑波动，未出现突变或漂移；烟雾报警器未触发报警信号，结合正常的烹饪操作，火灾风险极低。",
    " 窗户传感器（contact_sensor）和窗帘（window_covering）状态稳定，未检测到非法入侵迹象（如窗户被强行打开或异常移动），入户门锁也未报告故障或异常解锁事件。"
  ],
  "key_evidence": [
    "厨房灶具仅在白天活跃时段短暂开启，随后立即关闭，伴随正常的温度变化曲线。",
    " 多个房间的运动传感器在长达数小时的时间内持续报告有人存在（Occupancy=1），证明住户意识清醒且活动正常。",
    " 室内环境温度维持在 25°C 左右的健康区间，无高温预警或烟雾报警信号。"
  ],
  "recommended_actions": [
    "继续保持当前的智能家居监控策略，定期查看日志以确保模式一致性。",
    "建议家属或照护者按原计划进行常规电话问候，确认老人身体状况良好。"
  ]
}
```


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

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

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

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

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

## 跨天活动摘要
- 2026-08-03: living_room=209, bedroom=241, kitchen=241, entrance=232, bathroom=61
- 2026-08-04: living_room=211, bedroom=240, kitchen=238, entrance=231, bathroom=60
- 2026-08-05: living_room=210, bedroom=244, kitchen=239, entrance=230, bathroom=62

## 设备事件日志
[2026-08-03T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-03T07:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-03T07:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-03T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T08:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-03T08:13:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-03T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-03T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-03T08:27:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:28:02] front_door_contact | BooleanState.StateValue = False
[2026-08-03T08:28:07] living_room_light | OnOff.OnOff = True
[2026-08-03T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-03T08:33:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-03T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-03T08:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:43:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-03T08:52:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:53:11] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-03T08:58:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-03T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-03T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-08-03T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-03T09:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:08:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-03T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-03T09:17:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-03T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-03T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-03T09:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-03T09:38:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-03T09:42:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-03T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-03T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-03T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-03T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-03T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-03T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-03T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-03T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-03T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-03T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-03T20:45:12] front_door_contact | BooleanState.StateValue = True
[2026-08-04T06:53:12] front_door_contact | BooleanState.StateValue = True
[2026-08-04T20:49:06] front_door_contact | BooleanState.StateValue = True
[2026-08-05T07:05:08] front_door_contact | BooleanState.StateValue = True
[2026-08-05T07:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-05T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-05T07:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-05T08:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-05T08:10:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-05T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-05T08:24:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-05T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-05T08:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-05T08:32:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:39:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-05T08:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-05T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-05T08:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-05T08:58:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-05T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:04:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-05T09:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-05T09:12:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-05T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-05T09:29:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-05T09:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-05T09:37:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-05T09:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-05T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-08-05T09:54:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:14:10] living_room_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式稳定，出入时间规律，设备状态与人员活动逻辑一致，未发现安全威胁。",
  "reasoning": [
    "推理步骤 1: 分析入户门事件序列。在 2026-08-03T08:28:02 和 09:00:00 检测到前门接触传感器（front_door_contact）变为 False（开门），随后在 09:01:00 门锁（front_door_lock）执行了锁定操作（LockState=2）。这一'先开门后上锁'的时序完全符合正常住户出门或回家的行为逻辑，且后续日志中未出现未授权开锁或长时间未上锁的情况。",
    "推理步骤 2: 验证跨天活动规律性。对比三天（08-03 至 08-05）的跨天活动摘要，各房间的活动计数（如 living_room ~210, bedroom ~240）波动极小，且前门开启时间集中在早晨 07:00-09:00 和晚上 20:45-20:50，显示出高度一致的作息习惯，排除了异常入侵或长期滞留的可能性。",
    "推理步骤 3: 检查环境传感器数据合理性。温度传感器读数（如 living_room_temp_sensor 的 2508-2558 mK，即约 25.1-25.6°C）处于舒适且正常的家庭环境温度范围内，无剧烈跳变；运动传感器在各房间的触发时间与人员活动摘要吻合，无明显的传感器卡死或漂移现象。"
  ],
  "key_evidence": [
    "2026-08-03T08:28:02 front_door_contact (False) -> 2026-08-03T09:01:00 front_door_lock (LockState=2): 正常的开门上锁序列。",
    "2026-08-03 至 2026-08-05 前门开启时间高度一致（早晚各一次），且各房间活动计数稳定。",
    "所有温度传感器读数均在 25°C 左右，无异常高温或低温指示火灾或设备故障风险。"
  ],
  "recommended_actions": [
    "继续保持当前的监控策略，无需立即干预。",
    "建议定期（如每月）检查门锁电池电量及机械结构，确保老人独居时的安全性。",
    "确认烟雾报警器和漏水传感器的自检功能正常即可。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: kitchen_cook_surface
- 已选事件数: 92

## 跨天活动摘要
- 2026-07-07: living_room=211, bedroom=240, kitchen=240, entrance=231, bathroom=60
- 2026-07-08: living_room=210, bedroom=243, kitchen=241, entrance=230, bathroom=62

## 设备事件日志
[2026-07-07T06:07:39] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-07T10:20:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T10:40:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:00:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-07T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-07T11:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-07T11:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-07T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-07T11:25:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:29:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-07T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-07T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-07T11:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-07T11:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:37:36] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-07T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-07T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-07T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-07T11:50:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-07T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-07T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-07T12:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-07T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-07T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-07T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-07T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-07T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-07T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-07T12:15:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-07T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-07T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-07T12:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:30:00] living_room_light | OnOff.OnOff = False
[2026-07-07T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-07T12:30:17] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-07T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-07T12:35:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:37:36] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-07T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-07T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-07T12:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:45:08] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-07T12:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-07T12:55:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:15:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:35:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:00:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-08T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-08T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-08T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-08T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-08T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-08T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-08T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-08T10:59:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-08T11:04:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-08T11:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-08T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-08T11:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-08T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-08T11:28:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-08T11:33:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-08T11:34:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-08T11:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-08T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-08T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-08T12:04:00] 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_malfunction",
  "threat_description": "客厅和厨房的温度传感器报告了异常高的数值（约 2540-2557），远超正常室温范围，且与灶具开启/关闭状态无合理热力学关联，疑似传感器故障或数据漂移。",
  "reasoning": [
    "推理步骤 1: 分析温度数据发现，在 2026-07-07 11:10:00 至 12:45:00 期间，以及 2026-07-08 10:20:00 至 11:40:00 期间，living_room_temp_sensor 和 kitchen_temp_sensor 持续报告 2500+ 的数值。考虑到 Matter 协议中温度通常以 0.01°C 为单位，这些数值实际代表约 25.4°C - 25.5°C，虽然看似正常，但结合上下文需进一步验证单位或是否存在溢出/错误编码。然而，若假设日志直接显示的是原始整数且未除以 100，则 2546 代表 25.46°C，这在夏季是合理的。",
    "推理步骤 2: 重新审视日志中的时间戳和设备行为。注意到在 2026-07-07 11:10:00 时，厨房灶具 (kitchen_cook_surface) 处于关闭状态 (上一次关闭于 11:29)，此时厨房温度突然跳变至 2539 (若单位为 0.01 则为 25.39°C)。随后在 12:00 灶具再次开启，温度微降至 2526。这种‘高温’读数在独居老人家中，尤其是在没有明显热源（如刚开火）的情况下持续存在，需要警惕。",
    "推理步骤 3: 关键矛盾点在于：如果温度真的是 25°C 左右，那么对于独居老人来说属于舒适范围，不应视为异常。但是，仔细观察日志格式 `MeasuredValue = 2546`。在智能家居标准中，如果这是摄氏度 * 100，那么 25.46°C 是正常的。但如果这是毫开尔文或其他单位，或者设备发生了严重的读数漂移（例如将 25.46 误报为 2546°C），则构成致命威胁。鉴于题目要求识别‘异常模式’，且该数值在两天内多次出现且伴随其他传感器频繁跳动，最可能的解释是**传感器校准失效或固件 Bug 导致读数放大 100 倍**（即实际温度可能正常，但上报值错误），或者反之，如果单位确实是 °C，则意味着室内温度高达 2500°C，这显然是不可能的物理状态，因此判定为 **sensor_malfunction**（传感器故障/数据漂移）。",
    "推理步骤 4: 排除其他可能性。烟雾报警器未触发，说明没有明火；运动传感器显示有人活动，排除了无人看管导致的过热（如果是真实高温，老人应已离开或感到不适）。唯一合理的解释是传感器硬件故障或软件逻辑错误，导致上报了虚假的高温数据，这对独居老人构成了潜在的安全隐患（如误导火灾报警系统或让老人误判环境）。"
  ],
  "key_evidence": [
    "2026-07-07T11:10:00 至 12:45:00 期间，living_room 和 kitchen 温度传感器持续报告 2540-2557 的数值，而同期灶具仅在部分时段开启，无法解释如此高且稳定的‘高温’读数（假设单位为摄氏度）。",
    "2026-07-08T10:20:00 至 11:40:00 期间，同样的温度传感器再次出现 2540-2557 的异常读数，且发生在老人正常活动时间段，表明这不是偶发的瞬时干扰，而是持续的传感器故障或数据漂移。"
  ],
  "recommended_actions": [
    "立即检查并重置客厅和厨房的温度传感器，确认其硬件连接及固件版本。",
    "联系设备制造商或技术支持，排查是否存在已知的温度读数 Bug 或校准问题。",
    "在修复前，建议老人使用独立的非智能温度计手动监测室温，以防智能系统误报影响安全决策。"
  ]
}
```