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: 101

## 跨天活动摘要
- 2026-08-03: living_room=211, bedroom=240, kitchen=238, entrance=233, bathroom=62
- 2026-08-04: living_room=211, bedroom=241, kitchen=238, entrance=230, bathroom=62
- 2026-08-05: living_room=207, bedroom=245, kitchen=240, entrance=231, bathroom=57

## 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 = 2506
[2026-08-03T07:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-03T07:46:00] 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
[2026-08-03T08:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-03T08:12:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-03T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-03T08:20:02] front_door_contact | BooleanState.StateValue = False
[2026-08-03T08:20:13] living_room_light | OnOff.OnOff = True
[2026-08-03T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-03T08:27:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-03T08:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-03T08:35:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:37:53] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-03T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-03T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-03T08:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:52:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-03T08:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-03T09:00:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-08-03T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-03T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-03T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-03T09:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:17:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-03T09:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-03T09:25:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-03T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-03T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-03T09:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:42:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-03T09:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-03T09:50:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T10:10:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T10:30:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T20:46:12] front_door_contact | BooleanState.StateValue = True
[2026-08-04T06:55:14] front_door_contact | BooleanState.StateValue = True
[2026-08-04T20:50:12] front_door_contact | BooleanState.StateValue = True
[2026-08-05T07:02:10] 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 = 2518
[2026-08-05T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-05T07:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-05T08:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-05T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-05T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-05T08:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:23:40] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-05T08:27:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-05T08:32:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-05T08:39:00] front_door_lock | DoorLock.LockState = 2
[2026-08-05T08:39:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-05T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-05T08:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-05T08:53:40] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-05T08:59:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-05T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-05T09:07:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-05T09:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-05T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-05T09:24:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-05T09:29:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-05T09:32:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-05T09:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-05T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-05T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-05T09:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T10:16:00] bedroom_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正常，无入侵、设备故障或环境安全隐患。",
  "reasoning": [
    "时间线分析：所有事件均发生在合理的起床（07:00-08:00）和外出/回家时间段内。例如，2026-08-03 的开门时间为 08:20，随后门锁在 09:01 锁定；2026-08-05 的开门时间为 08:39，符合老人稍晚起身的习惯，且后续有正常的室内活动记录。",
    "状态一致性检查：门传感器（front_door_contact）与门锁（front_door_lock）状态逻辑一致。开门后不久即执行上锁操作，且夜间（20:46, 20:50）均有正常的关门记录，未发现未授权进入或门锁失效迹象。",
    "环境与占用模式：各房间温度传感器读数稳定（约 24.5°C - 25.5°C），无异常高温或低温漂移。运动传感器在各房间的触发频率与跨天摘要中的计数相符，表明住户活动规律，无长时间无人导致的“异常不活跃”或突然的“多人在场”异常。",
    "安全设备状态：烟雾报警器和漏水传感器在提供的日志片段中未报告任何触发事件，且厨房灶具区域有正常的温度波动，未见持续高温或异常烹饪行为特征。"
  ],
  "key_evidence": [
    "前门接触传感器与门锁状态在每次开门后均正确响应并锁定，夜间自动关闭记录完整。",
    "卧室和客厅的运动传感器在预期时间段（早晨至上午）持续检测到人员存在，且温度数据平稳，无设备故障迹象。",
    "跨天活动摘要显示每日各房间活动量分布均匀，符合独居老人稳定的生活作息。"
  ],
  "recommended_actions": [
    "继续保持当前的监控策略，无需立即干预。",
    "建议定期（如每周）人工复核一次门锁电池电量及传感器校准状态，作为预防性维护。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light
- 已选事件数: 120

## 跨天活动摘要
- 2026-07-17: living_room=211, bedroom=241, kitchen=239, entrance=230, bathroom=62
- 2026-07-18: living_room=207, bedroom=244, kitchen=241, entrance=231, bathroom=57
- 2026-07-19: living_room=210, bedroom=243, kitchen=239, entrance=231, bathroom=63

## 设备事件日志
[2026-07-17T06:07:09] kitchen_light | OnOff.OnOff = True
[2026-07-17T10:30:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T10:50:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-17T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-17T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-17T11:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T11:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T11:25:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-17T11:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-17T11:37:53] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-17T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-17T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-17T11:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-17T12:00:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-17T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-17T12:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-17T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-17T12:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T12:21:20] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-17T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-17T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-17T12:35:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-17T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-17T12:46:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-17T12:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T12:55:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T13:15:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T13:35:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:58:00] kitchen_light | OnOff.OnOff = True
[2026-07-18T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-18T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-18T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-18T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-18T13:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-18T13:34:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T13:36:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-18T13:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T13:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-18T13:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T13:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-18T13:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-07-18T13:57:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-07-18T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-18T14:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-18T14:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-18T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-07-18T14:22:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-18T14:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-18T14:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-18T14:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-18T14:47:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-18T14:53:40] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-18T14:59:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-18T15:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T15:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-18T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-18T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-18T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-18T15:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-18T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-19T11:03:00] kitchen_light | OnOff.OnOff = True
[2026-07-19T15:05:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:25:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:45:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-19T16:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-19T16:03:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-19T16:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-19T16:20:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-19T16:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-19T16:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-19T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-07-19T16:40:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-19T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-19T16:53:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T16:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-19T16:59:00] kitchen_light | OnOff.OnOff = True
[2026-07-19T17:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-19T17:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-19T17:05:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T17:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-19T17:10:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-19T17:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T17:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-19T17:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "设备日志显示独居老人的日常活动模式正常，无入侵、火灾或设备故障迹象。",
  "reasoning": [
    "时间线分析：所有事件均发生在白天（06:07 - 17:24），符合独居老人正常的起居活动时间段，未发现深夜异常活动或非授权时段的活动。",
    "空间逻辑验证：运动传感器和温度传感器的触发顺序合理。例如，厨房灯开启后不久检测到厨房有人，随后玄关也有人员活动，表明是同一人在屋内移动，而非外部入侵者快速穿梭。",
    "数据有效性检查：虽然部分温度值以毫开尔文（mK）为单位（如 2542 mK ≈ 25.4°C），数值在夏季室内正常范围内；且最后一条记录中厨房温度传感器返回 None 可能是网络波动或临时掉线，但紧接着有后续的正常读数，未构成持续性传感器失效威胁。",
    "行为一致性：窗帘关闭/打开、灯光开关与人员出现的时间点吻合，体现了住户对环境的主动控制，排除了被胁迫或失控的可能性。"
  ],
  "key_evidence": [
    "厨房灯 (kitchen_light) 在 12:05、16:40 等时间点被手动开启，且紧随其后即检测到厨房有人，符合正常烹饪或准备食物习惯。",
    "卧室温度从上午的 24°C 左右逐渐下降至下午的 22-23°C，符合空调运行或自然降温规律，且与卧室有人活动的记录一致，无异常高温或低温报警。",
    "入户门 (entrance) 和玄关 (entrance_occupancy) 的运动检测频率适中，未见短时间内高频次进出（尾随嫌疑）或长时间无人却频繁开门的情况。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需立即干预。",
    "建议定期检查厨房温度传感器连接状态，确保其不会因信号干扰而长期丢失数据。",
    "鉴于用户为独居老人，可考虑设置简单的‘每日确认’机制（如通过 Matter 协议发送简短问候消息），若连续 24 小时无响应则触发人工核查。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ4
- 重点房间: living_room
- 重点设备: bedroom_occupancy, living_room_occupancy
- 已选事件数: 130

## 跨天活动摘要
- 2026-08-15: living_room=208, bedroom=244, kitchen=240, entrance=231, bathroom=57
- 2026-08-16: living_room=210, bedroom=244, kitchen=238, entrance=231, bathroom=63
- 2026-08-17: living_room=211, bedroom=244, kitchen=240, entrance=229, bathroom=60

## 设备事件日志
[2026-08-15T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T07:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-15T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-15T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-15T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-15T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-08-15T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-15T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-15T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-15T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-15T08:32:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:39:11] living_room_light | OnOff.OnOff = True
[2026-08-15T08:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-15T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-15T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:04:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:12:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-15T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-15T09:29:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:37:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-15T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-15T09:54:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T10:14:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T10:34:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T10:54:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T15:32:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-16T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-16T07:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-16T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-16T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-16T08:14:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T08:24:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-16T08:24:11] living_room_light | OnOff.OnOff = True
[2026-08-16T08:34:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T08:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-16T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-16T08:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T08:54:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T08:59:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-16T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-16T09:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:19:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:24:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-16T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-16T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-16T09:44:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:49:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-16T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-16T10:09:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T10:29:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-16T10:49:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-17T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-17T07:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-17T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-17T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-17T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-17T08:21:14] living_room_light | OnOff.OnOff = True
[2026-08-17T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-17T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-17T08:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:42:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:46:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-17T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-17T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:07:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:11:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-17T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-17T09:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:32:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:36:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-17T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-17T09:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:57:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:14:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-17T11:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:06:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-17T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-17T11:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:26:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-17T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-17T11:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:46:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-17T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-17T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-17T12:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T12:11:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T12:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T12:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T12:23:19] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "家庭环境运行正常，设备状态与独居老人的日常作息模式高度一致，未发现安全威胁或异常行为。",
  "reasoning": [
    "作息规律性分析：日志显示住户在每天早晨 07:00-08:30 之间起床并进入客厅/厨房活动，晚上 23:59-00:00 离开客厅，这种跨天（8/15, 8/16, 8/17）的高度一致性表明这是正常的独居老人生活节奏，无异常入侵或长时间滞留迹象。",
    "空间逻辑验证：运动传感器数据符合物理移动逻辑。例如，入户门（entrance）检测到有人后，随后卧室（bedroom）和厨房（kitchen）才陆续检测到活动；且当卧室无人时，客厅通常也无人，符合单人活动的特征。未出现‘人在卧室但客厅有人’等逻辑冲突。",
    "设备状态健康：温度传感器读数稳定（约 24-26°C），光照控制响应及时，门锁操作记录明确（手动上锁）。所有 Matter 协议报告的状态变化均符合预期功能，无传感器漂移、卡死或故障信号。",
    "关键事件确认：8/17 的窗户开合动作发生在白天且伴随室内人员活动，属于正常通风行为；夜间无烟雾报警触发，无漏水报警，无异常高温或低温事件。"
  ],
  "key_evidence": [
    "连续三天（8/15-8/17）的起床时间（~07:00）和就寝时间（~00:00）保持高度一致，符合正常生物钟。",
    "入户门锁在 8/16 08:24 有明确的'LockOperation'记录，证明安防系统正常工作且住户具备安全意识。",
    "所有房间的运动传感器状态转换流畅，没有出现非预期的多人在场或长时间静止不动的情况。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期检查老人身体状况，确保其日常生活自理能力稳定。",
    "确认智能家居系统的固件为最新版本，以维持 Matter 协议的互操作性及安全性。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light, kitchen_occupancy
- 已选事件数: 129

## 跨天活动摘要
- 2026-08-17: living_room=210, bedroom=243, kitchen=241, entrance=231, bathroom=63

## 设备事件日志
[2026-08-17T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[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 = 2291
[2026-08-17T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-08-17T00:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-08-17T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-17T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-08-17T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[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 = 2306
[2026-08-17T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-08-17T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-17T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-17T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2203
[2026-08-17T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-08-17T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-17T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-08-17T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-17T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2202
[2026-08-17T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[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 = 2318
[2026-08-17T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2206
[2026-08-17T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-08-17T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-17T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2217
[2026-08-17T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-08-17T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-08-17T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-17T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-08-17T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-17T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-08-17T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2220
[2026-08-17T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-08-17T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-17T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-08-17T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[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 = 2321
[2026-08-17T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-08-17T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2337
[2026-08-17T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-17T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-08-17T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-08-17T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-17T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-17T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2237
[2026-08-17T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-17T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-17T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-08-17T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-17T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-08-17T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[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 = 2343
[2026-08-17T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-08-17T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-17T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-17T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-08-17T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-17T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-17T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-08-17T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-17T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-17T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2246
[2026-08-17T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-17T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-08-17T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-08-17T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-08-17T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-08-17T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[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 = 2359
[2026-08-17T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-08-17T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-08-17T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-08-17T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-08-17T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-17T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-08-17T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-08-17T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-08-17T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-08-17T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-17T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-08-17T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-17T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-17T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-08-17T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[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] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-08-17T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-17T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-17T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-17T03:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-17T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-08-17T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-17T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-17T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-08-17T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[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 = 2402
[2026-08-17T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-17T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "检测到厨房区域出现长时间无人值守的高温异常，且伴随灯光开启，存在极高的火灾风险。",
  "reasoning": [
    "推理步骤 1: 温度数据分析显示，从凌晨 02:10 开始，厨房温度传感器读数急剧上升（约 37°C），并在 04:20 达到峰值 41.7°C（原始值 2417）。与此同时，客厅和卧室温度也同步缓慢爬升，表明室内整体环境温度正在失控升高。",
    "推理步骤 2:  occupancy 状态分析显示，在温度飙升期间（02:10 - 04:20），厨房运动传感器持续报告为 '0'（无人），直到 02:10 才短暂出现过一次 '1' 但随后立即消失，无法解释持续的高温积累。这表明住户并未在厨房内活动以应对高温或关闭热源。",
    "推理步骤 3: 行为逻辑矛盾：在 02:50 厨房灯被打开，但此时厨房温度已高达 38°C 且无人停留。对于独居老人而言，深夜厨房出现不明原因的高温且无人看管，极可能是灶具未关、电器故障或烹饪遗留导致的火灾隐患，而非正常生活场景。"
  ],
  "key_evidence": [
    "厨房温度在 2 小时内从 37°C 飙升至 41.7°C，远超正常室温波动范围。",
    "在最高温时段（03:00-04:20），厨房运动传感器持续显示无人（Occupancy=0）。",
    "全屋温度同步上升，排除了局部散热不良的可能性，指向持续的热源产生。"
  ],
  "recommended_actions": [
    "立即远程通知住户或其紧急联系人，告知厨房可能存在严重过热/火灾风险。",
    "若系统具备联动能力，尝试自动切断厨房电源或启动烟雾报警器（如果尚未触发）。",
    "建议物业或社区安保人员前往现场核查，确认是否有火情或需要协助的老人。"
  ]
}
```


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
- 2026-07-19: living_room=211, bedroom=242, kitchen=242, entrance=229, bathroom=60
- 2026-07-20: living_room=208, bedroom=242, kitchen=240, entrance=229, bathroom=63

## 设备事件日志
[2026-07-19T05:52:36] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-19T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-19T10:11:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-19T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-19T10:41:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-19T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-19T11:02:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-19T11:06:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:14:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-19T11:16:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-19T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-19T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-19T11:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:34:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-19T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-19T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-19T11:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-19T11:46:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-19T11:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-19T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-19T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-19T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-19T12:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-19T12:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-19T12:11:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-19T12:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-19T12:22:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T12:23:19] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-19T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-19T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-19T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-19T12:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:38:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-19T12:41:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-19T12:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-19T12:52:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-19T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-19T13:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:03:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-19T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-19T13:16:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-07-19T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-19T13:46:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-19T13:56:13] living_room_light | OnOff.OnOff = True
[2026-07-19T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-20T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-20T10:05:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-20T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-20T10:35:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-20T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-20T11:00:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:04:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-20T11:06:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-20T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-20T11:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-20T11:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-20T11:20:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-20T11:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-20T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-20T11:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-20T11:40:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-20T11:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-20T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-20T11:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-20T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-20T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-20T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-20T12:05:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-20T12:10:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-20T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-20T12:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-20T12:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-20T12:30:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-20T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-20T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-20T12:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:46:05] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "家庭环境运行正常，设备状态与独居老人的日常活动模式一致，未发现安全威胁或异常行为。",
  "reasoning": [
    "时间线分析：日志显示的活动主要集中在上午 10:00 至下午 14:00 之间，符合独居老人白天的正常作息规律（起床、活动、用餐）。",
    "烹饪行为验证：厨房灶具 (kitchen_cook_surface) 在 2026-07-19 和 2026-07-20 均于 12:00 左右开启，并在约 4 分钟后关闭。此操作发生在有人员在场（kitchen_occupancy=1）且紧邻卧室/客厅有人活动的时段，属于正常的午餐准备行为，排除了无人看管烹饪的风险。",
    "传感器数据一致性：温度传感器读数（如 living_room_temp_sensor 的 2557 对应 25.57°C）逻辑合理，未出现漂移或故障；运动传感器在各房间的状态变化连贯，反映了人员在客厅、厨房、卧室间的正常移动轨迹。",
    "无危险信号：未检测到烟雾报警、漏水报警、门锁异常开启或长时间无生命体征等紧急事件。"
  ],
  "key_evidence": [
    "厨房灶具开启后立即关闭，且当时厨房及邻近区域均有人员活动记录。",
    "所有温度传感器读数稳定且在合理范围内，无突变或丢失数据导致的误报风险。",
    "跨天活动摘要显示两日的生活节奏高度相似，符合稳定的独居生活模式。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控频率，无需额外干预。",
    "建议定期（如每周）手动检查一次烟雾报警器和漏水传感器，确保其物理功能正常。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: bedroom_occupancy, front_door_contact, front_door_lock
- 已选事件数: 95

## 跨天活动摘要
- 2026-08-26: living_room=208, bedroom=242, kitchen=238, entrance=231, bathroom=63
- 2026-08-27: living_room=210, bedroom=241, kitchen=237, entrance=231, bathroom=59
- 2026-08-28: living_room=209, bedroom=242, kitchen=237, entrance=229, bathroom=66

## 设备事件日志
[2026-08-26T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-26T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-26T07:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-26T07:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-26T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-26T08:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-26T08:12:13] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-26T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-26T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-26T08:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T08:35:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-26T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-26T08:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T08:44:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-26T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-26T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-26T08:55:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-26T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-26T09:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-08-26T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-26T09:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-26T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-26T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-26T09:20:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T09:24:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-26T09:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-26T09:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-26T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-26T09:40:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-26T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-26T09:45:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T09:49:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T09:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T10:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T10:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T20:53:14] front_door_lock | DoorLock.LockState = 1
[2026-08-27T06:54:15] front_door_lock | DoorLock.LockState = 1
[2026-08-27T20:35:15] front_door_lock | DoorLock.LockState = 1
[2026-08-28T07:09:13] front_door_lock | DoorLock.LockState = 1
[2026-08-28T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-28T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T07:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-28T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-28T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-28T08:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-28T08:15:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-28T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-28T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T08:34:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-28T08:35:02] front_door_contact | BooleanState.StateValue = False
[2026-08-28T08:35:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-28T08:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-28T08:45:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-28T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-28T08:55:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-28T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-28T09:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-28T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-28T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-28T09:20:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-28T09:25:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-28T09:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-28T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-28T09:41:48] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-28T09:45:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-28T09:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T10:11:00] 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": "日志显示独居老人的日常活动模式正常，无入侵、异常停留或设备故障迹象。",
  "reasoning": [
    "时间线分析：所有事件均发生在合理的起床（07:00-08:30）、出门（09:00）和晚间归家/锁门（20:53, 20:35, 07:09）时间段内，符合独居老人的作息规律。",
    "行为逻辑验证：在 08:35 分入户门锁被手动上锁后，紧接着 09:00 分前门接触传感器状态变为 False（开门），随后老人进入厨房和客厅进行正常活动，最后在前一天晚上 20:53 再次确认门锁状态为锁定（LockState=1），表明出入流程完整且安全。",
    "环境数据一致性：室内温度传感器读数（约 24.3°C - 25.6°C）处于舒适且安全的范围内，未出现极端高温或低温导致的设备误报； occupancy 传感器在各房间的活动切换流畅，未发现长时间无人却有人活动的矛盾现象。"
  ],
  "key_evidence": [
    "2026-08-26T08:35:00 门锁手动上锁 (LockOperationType=1) 与 09:00:00 前门打开 (BooleanState=False) 的时间间隔合理，符合正常出门流程。",
    "2026-08-26T20:53:14 及后续多天的晚间时段均记录了门锁锁定状态 (LockState=1)，证明夜间安防措施已生效。",
    "各房间 occupancy 传感器状态变化与温度传感器读数波动趋势一致，排除了传感器卡死或漂移的可能性。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控频率，无需额外干预。",
    "建议定期检查老人使用的智能门锁电池电量，确保其长期稳定运行。"
  ]
}
```


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: 107

## 跨天活动摘要
- 2026-07-03: living_room=210, bedroom=241, kitchen=237, entrance=233, bathroom=59
- 2026-07-04: living_room=209, bedroom=241, kitchen=237, entrance=229, bathroom=66
- 2026-07-05: living_room=209, bedroom=244, kitchen=239, entrance=231, bathroom=59

## 设备事件日志
[2026-07-03T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-03T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-03T07:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-03T07:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-03T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-03T08:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-03T08:14:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-03T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-03T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-03T08:26:02] front_door_contact | BooleanState.StateValue = False
[2026-07-03T08:26:14] living_room_light | OnOff.OnOff = True
[2026-07-03T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-03T08:33:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-03T08:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-03T08:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-03T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-03T08:51:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-03T08:58:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-03T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-07-03T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-07-03T09:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-03T09:09:49] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-03T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-03T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-03T09:16:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-03T09:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:23:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-03T09:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-03T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-03T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-03T09:41:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-03T09:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:48:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-03T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-03T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-03T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-03T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-03T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-03T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-03T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-03T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-03T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-03T20:35:15] front_door_lock | DoorLock.LockState = 1
[2026-07-04T07:09:13] front_door_lock | DoorLock.LockState = 1
[2026-07-04T20:54:12] front_door_lock | DoorLock.LockState = 1
[2026-07-05T06:55:10] front_door_lock | DoorLock.LockState = 1
[2026-07-05T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-05T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T07:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-05T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-05T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-05T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-05T08:10:06] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-05T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-05T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-05T08:28:00] front_door_lock | DoorLock.LockState = 2
[2026-07-05T08:28:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-05T08:30:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-05T08:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-05T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-05T08:48:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-05T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-05T08:55:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-05T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-05T09:06:05] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-05T09:13:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-05T09:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-05T09:20:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-05T09:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-05T09:38:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-05T09:43:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-05T09:45:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-05T09:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T10:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T10:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式正常，无入侵、异常停留或设备故障迹象。",
  "reasoning": [
    "时间线分析：所有事件均发生在合理的作息时间内（07:00-10:30），符合老人起床、洗漱、早餐及在客厅活动的习惯，未见深夜或非正常时段的活动。",
    "空间逻辑验证：传感器数据与物理空间逻辑一致。例如，入户门接触传感器（front_door_contact）在开门时变为 False，随后玄关和客厅运动传感器触发，紧接着门锁状态变化，表明是住户正常的进出行为，而非尾随或强行闯入。",
    "设备状态检查：关键安全设备（烟雾报警器、漏水传感器、门锁）未报告任何故障代码或异常状态值；温度传感器读数稳定且符合室内环境特征，未发现传感器漂移或卡死现象。",
    "行为模式对比：跨天摘要显示各房间活动量波动极小，且每日活动轨迹高度相似，表明这是该住户稳定的常规生活模式，不存在突然的行为异常或长时间无人看管的情况。"
  ],
  "key_evidence": [
    "2026-07-03T08:26:02 front_door_contact (False) 后紧跟 entrance_occupancy (1) 和 living_room_light (True)，符合正常开门进屋流程。",
    "2026-07-05T08:28:00 front_door_lock (LockState=2) 发生在 entrance_occupancy (1) 之后，确认为住户主动锁门，非被入侵后的被动锁定。",
    "全周期内无任何 water_leak_detector, smoke_co_alarm 的报警事件，且 temperature_sensor 数值连续且合理。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需立即干预。",
    "建议定期（如每周）人工复核一次门锁电池电量及烟雾报警器功能，确保长期可靠性。"
  ]
}
```