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

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

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

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

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

## 跨天活动摘要
- 2026-07-02: living_room=209, bedroom=241, kitchen=237, entrance=231, bathroom=66
- 2026-07-03: living_room=209, bedroom=243, kitchen=239, entrance=231, bathroom=59
- 2026-07-04: living_room=209, bedroom=244, kitchen=237, entrance=231, bathroom=60

## 设备事件日志
[2026-07-02T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-02T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-02T07:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-02T07:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-02T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-02T08:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-02T08:11:48] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-02T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-02T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-02T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-02T08:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T08:30:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T08:35:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-02T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-02T08:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T08:35:11] living_room_light | OnOff.OnOff = True
[2026-07-02T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-02T08:40:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T08:41:48] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-02T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-02T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-02T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-02T08:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T08:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-02T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-07-02T09:00:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-07-02T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-02T09:05:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-02T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-02T09:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-02T09:25:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-02T09:30:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-02T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-02T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-02T09:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-02T09:50:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T09:55:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T10:15:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T10:35:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-02T20:54:11] front_door_contact | BooleanState.StateValue = True
[2026-07-03T06:55:09] front_door_contact | BooleanState.StateValue = True
[2026-07-03T20:40:14] front_door_contact | BooleanState.StateValue = True
[2026-07-04T06:53:09] front_door_contact | BooleanState.StateValue = True
[2026-07-04T07:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-04T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-04T07:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-04T08:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-04T08:10:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:13:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-04T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-04T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-04T08:28:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-04T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-04T08:30:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:33:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-04T08:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-04T08:41:10] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-04T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-04T08:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-04T08:55:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T08:58:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-04T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:03:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-04T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-04T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-04T09:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-04T09:20:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:23:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-04T09:28:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-04T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-04T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-04T09:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-04T09:45:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:48:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-04T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-04T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-04T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-04T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-04T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539

## 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稳定，无入侵、异常操作或设备故障迹象。",
  "reasoning": [
    "入住与出门时间规律：日志显示老人通常在早上 07:20-08:35 之间起床并锁门出门（如 07:26 卧室有人，08:35 手动上锁），晚上约 20:40-20:54 回家开门，符合独居老人的正常作息习惯。",
    "门锁状态逻辑正确：入户门传感器（front_door_contact）在 09:00 变为 False（关门），随后门锁状态（LockState=2，通常代表已锁定）在几分钟内确认；晚上回家时先有开门事件（contact=True），再结合上下文推断为解锁进入，逻辑连贯，未发现未授权开锁或锁具卡死现象。",
    "环境数据正常且一致：室内温度传感器读数（如客厅 25°C 左右，卧室 24°C 左右）在合理范围内且波动平稳，无突变；各房间 occupancy 传感器报告的人员移动轨迹与灯光、空调等设备的激活时间吻合，未见传感器粘连或漂移导致的误报。"
  ],
  "key_evidence": [
    "每日固定的起床/出门和回家/进门时间窗口（约 07:30-08:35 出门，20:40-20:55 回家）。",
    "门锁操作记录显示均为 Manual 手动操作，且接触传感器状态变化与锁的状态变化时序匹配。",
    "所有温度和环境传感器读数连续三天保持稳定，无异常跳变或长时间静止后的突然变化。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需额外干预。",
    "建议定期（如每月）检查烟雾报警器和漏水传感器的电池及功能，确保长期可靠性。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light
- 已选事件数: 119

## 跨天活动摘要
- 2026-07-24: living_room=209, bedroom=243, kitchen=240, entrance=231, bathroom=59
- 2026-07-25: living_room=209, bedroom=243, kitchen=238, entrance=231, bathroom=60
- 2026-07-26: living_room=207, bedroom=241, kitchen=241, entrance=231, bathroom=62

## 设备事件日志
[2026-07-24T06:05:08] kitchen_light | OnOff.OnOff = True
[2026-07-24T10:33:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T10:53:00] kitchen_light | OnOff.OnOff = True
[2026-07-24T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-24T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-24T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-24T11:18:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-24T11:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-24T11:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-24T11:36:05] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-24T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-24T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-24T11:53:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-24T12:03:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-07-24T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-24T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-24T12:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-24T12:18:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-24T12:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-24T12:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-24T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-07-24T12:40:05] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-24T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-24T12:48:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-24T12:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-24T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-24T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-24T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-24T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-25T12:43:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T13:03:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T13:23:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-25T13:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T13:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-25T13:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T13:43:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-25T13:52:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T13:58:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-07-25T14:03:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:11:10] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-25T14:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-25T14:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-07-25T14:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-25T14:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-25T14:30:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-25T14:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-25T14:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-25T14:55:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-25T15:03:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T15:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-25T15:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-25T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-07-25T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-25T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-25T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-26T15:02:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T15:22:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T15:42:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T15:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-26T15:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T15:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-26T16:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-26T16:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-26T16:12:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-26T16:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-26T16:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-26T16:37:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-26T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-07-26T16:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-26T16:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T16:55:00] kitchen_light | OnOff.OnOff = True
[2026-07-26T16:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-26T16:57:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-26T17:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-26T17:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T17:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-26T17:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-26T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-07-26T17:22:16] living_room_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，无安全威胁或异常行为迹象。",
  "reasoning": [
    "时间线分析：所有事件均发生在白天（06:05 - 17:22），符合独居老人正常的日间活动规律，未发现深夜异常活动或非正常时段的活动。",
    "空间逻辑验证：运动传感器（occupancy）的触发与温度传感器（temperature_sensor）读数变化高度相关，且厨房灯光（kitchen_light）仅在检测到厨房有人时开启，表明设备联动逻辑正常，无误报或死机现象。",
    "数据合理性检查：温度传感器数值（如 2545 代表 25.45°C）在合理的生活环境范围内波动，未出现传感器漂移、卡死或超出物理极限的异常数据；窗户和窗帘状态变化也符合自然开合逻辑。",
    "住户习惯匹配：跨天摘要显示各房间活动频次稳定，未见突然的长时间静止（可能暗示跌倒）或频繁进出等异常行为模式。"
  ],
  "key_evidence": [
    "厨房灯光仅在厨房有人时开启，且随后有温度变化，证明设备响应正常。",
    "温度传感器读数随人员活动区域变化而合理波动，无异常跳变或停滞。",
    "所有活动集中在白天，符合独居老人的典型作息，无夜间入侵风险。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需额外干预。",
    "建议定期校准温度传感器以确保长期准确性。"
  ]
}
```


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: bedroom_occupancy, living_room_occupancy
- 已选事件数: 123

## 跨天活动摘要
- 2026-07-28: living_room=210, bedroom=243, kitchen=237, entrance=231, bathroom=60
- 2026-07-29: living_room=207, bedroom=242, kitchen=240, entrance=231, bathroom=62
- 2026-07-30: living_room=209, bedroom=244, kitchen=238, entrance=230, bathroom=56

## 设备事件日志
[2026-07-28T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T07:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-28T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-28T08:13:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:20:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-28T08:28:02] front_door_contact | BooleanState.StateValue = False
[2026-07-28T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-28T08:33:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-28T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-28T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-28T08:58:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:00:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-28T09:08:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:11:10] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-28T09:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-28T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-28T09:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:35:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-28T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-28T09:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-28T10:13:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T10:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-28T10:38:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-29T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-29T07:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-29T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-29T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-29T08:24:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:28:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-29T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-29T08:39:00] front_door_lock | DoorLock.LockState = 2
[2026-07-29T08:39:13] living_room_light | OnOff.OnOff = True
[2026-07-29T08:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-29T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-29T08:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:58:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-29T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-29T09:14:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-29T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-29T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-29T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-29T09:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:43:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-29T09:49:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T10:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-29T10:19:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T10:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-29T15:17:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-30T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-30T07:49:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-30T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-30T08:14:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:23:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-30T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-30T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-30T08:35:11] living_room_light | OnOff.OnOff = True
[2026-07-30T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-30T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-30T08:48:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-30T08:58:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-30T09:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:10:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-30T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-30T09:23:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-30T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-30T09:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:45:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-30T10:05:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-30T10:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T10:30:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-30T10:49:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T10:55:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-30T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-30T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-30T11:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-30T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-30T11:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:35:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-30T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-30T12:00:00] 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": "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": "基于提供的日志片段，独居老人的日常活动模式（起床、洗漱、早餐、厨房活动）符合预期，未发现入侵、设备故障或环境安全隐患。",
  "reasoning": [
    "时间线分析：住户在 07:27-08:13 之间从卧室起床并进入玄关和厨房，随后在 08:39 锁门离开（或短暂外出），并在 08:54 返回。这一序列完全符合独居老人正常的晨间作息规律。",
    "行为一致性：三天的日志显示，住户的起床时间（约 07:30）、厨房活动时间段以及卧室/客厅的占用状态高度一致，没有表现出混乱、异常停留或非典型的活动轨迹。",
    "设备状态正常：所有传感器（温度、运动、门窗接触）读数均在合理范围内且逻辑自洽（例如开门时 occupancy 变化，关门后 lock 状态更新）。未检测到烟雾报警、漏水、门锁故障或传感器数据漂移等异常事件。"
  ],
  "key_evidence": [
    "2026-07-28T08:39:00 front_door_lock 锁定与 08:54 entrance_occupancy 再次出现的时间间隔符合正常外出时长。",
    "三天内 living_room_temp_sensor 和 bedroom_temp_sensor 的温度读数稳定，无剧烈波动或超出舒适区范围的情况。",
    "厨房灶具 (cook_surface) 和烟雾报警器 (smoke_co_alarm) 在日志中未触发任何报警事件，且厨房温度读数正常。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期（如每周）手动检查一次入户门锁的物理机械功能，确保智能锁与物理锁芯同步正常。",
    "鉴于住户为独居老人，可考虑在夜间增加一次非侵入式的睡眠呼吸监测或简单的存在性确认（如果硬件支持），以提供额外的健康保障。"
  ]
}
```


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: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light
- 已选事件数: 118

## 跨天活动摘要
- 2026-08-13: living_room=207, bedroom=241, kitchen=241, entrance=231, bathroom=62
- 2026-08-14: living_room=209, bedroom=242, kitchen=239, entrance=230, bathroom=56
- 2026-08-15: living_room=210, bedroom=243, kitchen=240, entrance=230, bathroom=59

## 设备事件日志
[2026-08-13T05:58:09] kitchen_light | OnOff.OnOff = True
[2026-08-13T10:34:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:54:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-13T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-13T11:19:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-13T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-13T11:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-13T11:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-13T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-13T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-13T11:54:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T11:58:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T12:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-13T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-08-13T12:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-13T12:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-13T12:19:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:22:00] living_room_light | OnOff.OnOff = False
[2026-08-13T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-13T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-13T12:37:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-13T12:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-13T12:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-13T12:54:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:19:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T13:39:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T16:55:00] kitchen_light | OnOff.OnOff = True
[2026-08-14T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-14T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-14T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-14T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-14T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-14T13:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-14T13:32:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T13:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-14T13:40:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T13:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-14T13:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T13:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-14T13:52:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T13:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T13:58:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T14:01:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-08-14T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-08-14T14:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-08-14T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-08-14T14:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-08-14T14:26:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-14T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-14T14:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-14T14:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-08-14T14:51:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-14T14:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-14T15:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-14T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-14T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-14T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-14T15:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-14T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-08-15T10:58:00] kitchen_light | OnOff.OnOff = True
[2026-08-15T15:06:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T15:26:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T15:46:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T15:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-08-15T16:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-15T16:02:22] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T16:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-08-15T16:08:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-15T16:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T16:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-15T16:21:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T16:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-08-15T16:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T16:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-08-15T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-15T16:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-08-15T16:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-15T16:46:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-08-15T16:53:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T16:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-15T16:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T17:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T17:08:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-15T17:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-08-15T17:13:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T17:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-08-15T17:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T17:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T17:24:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "health_concern",
  "threat_description": "检测到独居老人卧室温度在下午时段出现异常急剧下降，且伴随长时间无活动记录，存在跌倒或突发健康状况导致无法移动的风险。",
  "reasoning": [
    "推理步骤 1: 分析 2026-08-15 的时序数据，发现卧室温度传感器读数从 16:00 的 2300 (23.0°C) 开始持续下降，至 17:10 降至 2256 (22.56°C)，并在后续日志中继续呈下降趋势（如 16:50 为 2278）。对于独居老人而言，短时间内室温显著降低通常意味着窗户被打开、空调故障或人员离开房间未关窗/门。",
    "推理步骤 2: 检查同一时间段内的 occupancy_sensor（运动传感器）状态。日志显示在 16:00 之后，直到 17:01 之前，卧室运动传感器没有任何 'Occupancy = 1' 的记录。虽然 16:41 和 17:01 有记录，但中间存在长达约 20 分钟的静默期，且温度在此期间持续走低，这与正常休息时的体温维持或环境稳定不符。",
    "推理步骤 3: 结合住户画像（独居老人），这种‘室温骤降 + 局部区域长时间无活动’的组合模式，高度疑似老人因身体不适（如头晕、跌倒）而离开卧室并未能返回，或者老人已离开卧室但未关闭门窗导致室温变化。考虑到是独居老人，这种情况属于高风险的健康安全事件。"
  ],
  "key_evidence": [
    "2026-08-15T16:00:00 至 17:10:00 期间，bedroom_temp_sensor 读数从 2300 持续下降至 2256，降幅明显。",
    "在同一时间窗口内，bedroom_occupancy 传感器仅在 16:41 和 17:01 有短暂触发，中间存在约 20 分钟的活动空白期，与温度持续下降的时间段重合。"
  ],
  "recommended_actions": [
    "立即通过家庭自动化系统向监护人或紧急联系人发送警报通知。",
    "尝试远程查看卧室摄像头画面（如果已授权并开启），确认老人位置及状态。",
    "联系社区服务中心或急救部门进行上门核查，以防老人发生跌倒或突发疾病。"
  ]
}
```


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: kitchen_light
- 已选事件数: 117

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

## 设备事件日志
[2026-07-27T05:58:05] kitchen_light | OnOff.OnOff = True
[2026-07-27T10:30:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T10:50:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-27T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-27T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-27T11:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:25:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:28:55] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-27T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-27T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-27T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-27T11:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-27T11:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-27T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-27T12:05:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-27T12:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-27T12:25:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-27T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-27T12:37:00] living_room_light | OnOff.OnOff = False
[2026-07-27T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-27T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-27T12:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-27T12:52:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T12:55:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:15:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T13:35:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-27T17:02:00] kitchen_light | OnOff.OnOff = True
[2026-07-28T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-28T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-28T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-28T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-28T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-28T13:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-28T13:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-28T13:39:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:42:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-28T13:48:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-28T13:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-28T13:59:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:02:22] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-28T14:08:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-28T14:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2460
[2026-07-28T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-07-28T14:21:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-28T14:28:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-28T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-28T14:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-28T14:46:16] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-07-28T14:53:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-28T14:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T15:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-28T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-28T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-28T15:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-07-28T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-29T11:02:00] kitchen_light | OnOff.OnOff = True
[2026-07-29T15:06:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:26:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:46:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-29T15:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-07-29T16:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-29T16:06:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-29T16:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-29T16:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-29T16:26:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-29T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-29T16:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-07-29T16:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-29T16:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-29T16:51:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T16:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-29T16:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:04:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-29T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-29T17:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-29T17:16:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T17:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-29T17:23:00] kitchen_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在活跃烹饪时段出现数据丢失（None），且数值呈现非物理规律的剧烈波动，表明传感器故障或通信中断。",
  "reasoning": [
    "推理步骤 1: 分析日志发现，2026-07-29T17:04:00 时 kitchen_temp_sensor 报告值为 None，紧接着在 T17:20:00 和 T17:23:00 恢复为具体数值。在此期间，kitchen_occupancy 持续为 1，且 kitchen_light 在 T16:40:00 开启，表明住户正在厨房进行活动（极可能是烹饪）。",
    "推理步骤 2: 检查温度数值的合理性。日志中温度值以毫开尔文 (mK) 为单位（例如 2547 mK = 25.47°C）。从 07-27 到 07-28，厨房温度随时间推移有正常的缓慢下降趋势（从 ~25.3°C 降至 ~24.5°C）。然而，在 07-29 的异常点前后，数值在 23.39°C 到 23.75°C 之间微小波动是正常的，但 'None' 的出现打破了连续监测链。更关键的是，如果这是真实的火灾风险场景，温度应急剧上升而非消失；如果是传感器漂移，数值通常会偏离基准线（如突然变成 -50°C 或 50°C），而此处是数据缺失。",
    "推理步骤 3: 结合独居老人背景。对于独居老人，厨房是高风险区域。传感器在有人操作期间突然失效（Data Loss）属于典型的 sensor_malfunction（传感器故障/通信中断），这可能导致无法及时发现潜在的过热、起火或燃气泄漏引发的温度异常，构成了安全隐患。虽然未直接检测到火情，但监控能力的丧失本身就是一种安全威胁。"
  ],
  "key_evidence": [
    "[2026-07-29T17:04:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None",
    "在数据丢失期间及之后，kitchen_occupancy 持续为 1，且 kitchen_light 处于开启状态，证实了厨房有人活动。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的物理连接、电池电量及固件状态，尝试重启设备。",
    "联系 Matter 网络管理员或设备制造商，确认该传感器是否存在已知故障或需要更换。",
    "在修复前，建议老人烹饪时保持人工留意，并考虑暂时移除其他非必要的智能设备干扰，确保烟雾报警器正常工作。"
  ]
}
```


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

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

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

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

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

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

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

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

请按以下 JSON 格式回答：

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

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

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

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


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

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

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

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

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

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

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

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

请按以下 JSON 格式回答：

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

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "家庭环境运行正常，设备状态与独居老人的日常作息模式高度一致，未发现安全威胁或异常行为。",
  "reasoning": [
    "时间序列分析显示，住户的活动规律（起床、出门、做饭、活动）在三天内保持高度稳定，符合独居老人的典型生活节奏，无异常闯入或长时间滞留迹象。",
    "所有传感器数据逻辑自洽：温度读数（约 25°C）处于舒适范围且波动正常； occupancy 状态变化与门锁操作、灯光开启等事件的时间顺序完全吻合，表明传感器工作正常，无卡死或漂移现象。",
    "关键安全设备（入户门锁、烟雾报警器、漏水传感器）未触发任何报警事件，且日志中未见相关故障报告，系统整体处于健康监控状态。"
  ],
  "key_evidence": [
    "连续三天的活动摘要数据显示各房间占用次数稳定，无突增或骤减的异常模式。",
    "日志中所有 OccupancySensing.Occupancy 状态变更均伴随合理的上下文事件（如开门后进入房间），不存在幽灵触发或逻辑冲突。",
    "厨房灶具 (cook_surface) 和烟雾报警器 (smoke_co_alarm) 在整个监测时段内均未出现异常关闭或报警记录。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控频率，无需调整阈值。",
    "建议定期（如每周）手动检查一次老人是否收到远程关怀提醒，确保其感知到系统的存在但不过度打扰。"
  ]
}
```