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: 115

## 跨天活动摘要
- 2026-07-11: living_room=209, bedroom=241, kitchen=240, entrance=231, bathroom=62
- 2026-07-12: living_room=209, bedroom=243, kitchen=241, entrance=231, bathroom=57
- 2026-07-13: living_room=209, bedroom=241, kitchen=239, entrance=229, bathroom=92

## 设备事件日志
[2026-07-11T06:00:10] kitchen_light | OnOff.OnOff = True
[2026-07-11T10:32:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T10:52:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-11T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-11T11:17:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-11T11:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:29:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-11T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-11T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-11T11:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-11T11:52:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-11T12:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-11T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-11T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-11T12:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-11T12:17:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:24:00] living_room_light | OnOff.OnOff = False
[2026-07-11T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-11T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-11T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-11T12:39:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-11T12:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-11T12:52:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-11T13:12:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T13:32:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-12T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-12T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-12T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-12T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-12T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-12T11:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-12T11:50:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-12T11:55:13] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-12T12:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-12T12:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-12T12:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-12T12:15:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-12T12:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-12T12:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-12T12:35:00] kitchen_light | OnOff.OnOff = True
[2026-07-12T12:35:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-12T12:43:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-12T12:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-12T12:55:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-12T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-12T13:08:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-12T13:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-12T13:20:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-12T13:40:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T14:00:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-13T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-13T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-13T10:54:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:14:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:27:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-13T11:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-13T11:39:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-13T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-13T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-13T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-13T11:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-13T11:59:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:02:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-13T12:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-13T12:15:00] kitchen_light | OnOff.OnOff = True
[2026-07-13T12:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-13T12:24:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:26:00] living_room_light | OnOff.OnOff = False
[2026-07-13T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-13T12:36:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:39:57] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-13T12:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-13T12:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516

## 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。

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "未检测到安全威胁或异常行为，设备日志显示独居老人的日常活动规律且正常。",
  "reasoning": [
    "1. 活动模式分析：日志显示老人在每天上午10:30至下午14:00左右处于活跃状态（客厅、厨房、卧室均有运动传感器触发），符合独居老人白天起床、活动、做饭的常规作息。没有发现长时间无活动的“abnormal_inactivity”迹象，也没有深夜异常活动的记录。",
    "2. 烹饪安全检查：虽然重点设备是厨房灯，但日志中包含了关键的安全设备数据。在7月13日11:39，厨房灶具(cook_surface)关闭，随后厨房温度传感器读数从None恢复并稳定在2516-2525之间（约25.2°C），表明烹饪结束后环境迅速冷却，未发现持续高温导致的“unattended_cooking”或火灾风险。",
    "3. 传感器状态评估：所有温度传感器读数均在合理范围内（23.8°C - 25.5°C），且变化趋势平缓，符合室内环境温度随时间变化的自然规律，排除了“sensor_drift”或“sensor_malfunction”。运动传感器频繁触发且与人员位置逻辑一致，未发现“sensor_stuck”现象。",
    "4. 入侵检测：入户门传感器和玄关运动传感器仅在特定时间点短暂触发（如11:47, 12:12等），且伴随其他房间的活动，推测为老人进出或访客短暂停留，未见门锁异常开启或长时间未关门的迹象，排除“intrusion”。"
  ],
  "key_evidence": [
    "7月11-13日，每日10:30-14:00期间，living_room_occupancy, kitchen_occupancy, bedroom_occupancy 均有规律性触发，显示老人活动正常。",
    "7月13日11:39 kitchen_cook_surface 关闭，且后续 kitchen_temp_sensor 读数恢复正常范围，证明烹饪行为已安全结束。",
    "所有 temperature_sensor 读数在 23.8°C 至 25.5°C 之间波动，无极端值或突变，传感器工作正常。"
  ],
  "recommended_actions": [
    "继续保持当前的监控策略，无需干预。",
    "建议定期校准温度传感器以确保长期数据准确性，尽管当前数据看起来正常。"
  ]
}
```

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在灶具关闭后持续报告异常高值（约 250°C+），且伴随数据丢失，极可能为传感器故障导致误报火灾风险。",
  "reasoning": [
    "推理步骤 1: 日志显示在 2026-07-13T11:39:00 厨房灶具 (cook_surface) 被设置为关闭 (False)，随后在 11:40:00 厨房温度传感器读数变为 None，但在 11:55:00 及之后又恢复并持续报告 251°C - 252°C 的极高温度。",
    "推理步骤 2: 正常烹饪结束后，厨房环境温度应在 20°C - 30°C 之间。即使灶具刚关闭，温度也不可能在几分钟内维持在 250°C 以上，这远超物理常识和火灾报警阈值。",
    "推理步骤 3: 结合独居老人家庭背景，若系统将此误报视为真实高温，可能会触发不必要的紧急疏散或消防联动；反之，若传感器完全失效（如一直报 None），则存在真正的火灾隐患未被监测。当前‘先消失后持续高位’的模式强烈指向硬件故障或校准漂移。"
  ],
  "key_evidence": [
    "2026-07-13T11:39:00 灶具关闭事件与随后的高温读数无逻辑关联。",
    "2026-07-13T11:55:00 至 12:55:00 期间，厨房温度传感器连续报告 >250°C 的数值。",
    "同一时间段内，卧室和客厅温度传感器读数正常（约 24°C - 25°C），排除了全屋过热环境的可能性。"
  ],
  "recommended_actions": [
    "立即派遣技术人员上门检查厨房温度传感器及烟雾报警器，确认是否为硬件损坏或需要更换电池/校准。",
    "在维修完成前，建议人工定期巡检厨房区域，确保无明火或燃气泄漏隐患。",
    "暂时禁用基于该传感器的自动火灾报警联动功能，防止误报造成恐慌或错误响应。"
  ]
}
```


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: front_door_contact
- 已选事件数: 122

## 跨天活动摘要
- 2026-08-28: living_room=209, bedroom=243, kitchen=240, entrance=232, bathroom=57
- 2026-08-29: living_room=209, bedroom=241, kitchen=238, entrance=230, bathroom=92
- 2026-08-30: living_room=210, bedroom=242, kitchen=239, entrance=231, bathroom=64

## 设备事件日志
[2026-08-28T06:51:04] front_door_contact | BooleanState.StateValue = False
[2026-08-28T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-28T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-28T08:11:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-28T08:19:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:25:00] front_door_lock | DoorLock.LockState = 2
[2026-08-28T08:25:02] front_door_contact | BooleanState.StateValue = False
[2026-08-28T08:25:16] living_room_light | OnOff.OnOff = True
[2026-08-28T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-28T08:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-28T08:39:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-28T08:45:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-28T08:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-28T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-28T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-28T09:04:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-28T09:10:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-28T09:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-28T09:24:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-28T09:35:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-28T09:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-28T09:49:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T10:00:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T10:20:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T20:41:10] front_door_contact | BooleanState.StateValue = True
[2026-08-29T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-29T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-29T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-29T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-29T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-29T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-29T09:34:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T09:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T09:39:57] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-29T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-29T09:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-29T09:54:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-29T09:59:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-29T10:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-29T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-29T10:19:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-29T10:20:00] front_door_contact | BooleanState.StateValue = False
[2026-08-29T10:24:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-29T10:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-29T10:39:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-29T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-29T10:49:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:52:00] kitchen_light | OnOff.OnOff = True
[2026-08-29T10:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-29T10:59:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-29T11:07:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:09:57] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-29T11:14:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:34:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:54:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T07:05:11] front_door_contact | BooleanState.StateValue = False
[2026-08-30T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-30T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-30T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-30T08:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-30T08:05:12] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-30T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-30T08:15:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-30T08:21:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-30T08:21:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-30T08:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-30T08:35:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-30T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-30T08:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-30T08:50:00] front_door_contact | BooleanState.StateValue = False
[2026-08-30T08:51:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T08:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-30T09:00:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-30T09:06:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-30T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-30T09:16:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T09:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-30T09:25:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-30T09:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-30T09:36:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-30T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-30T09:56:06] living_room_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "未检测到安全威胁或异常模式，设备状态与独居老人的日常作息及环境变化一致。",
  "reasoning": [
    "1. 门窗状态分析：入户门传感器（front_door_contact）在8月28日大部分时间为False（关闭），仅在20:41变为True（开启/未关严）。结合8月30日早晨的锁操作日志（LockOperation Manual），推测老人可能在夜间或清晨有开门活动，且门锁机制正常。8月29日10:20的门状态变化伴随玄关运动传感器激活，符合正常出入或通风行为。",
    "2. 人员活动模式：多房间的运动传感器（occupancy_sensor）在白天时段（07:00-11:00+）频繁触发，显示老人在客厅、卧室、厨房、卫生间之间规律移动。这种跨房间的活跃模式排除了‘跌倒后静止’或‘长时间无活动’的健康风险。",
    "3. 环境数据合理性：温度传感器读数（如2524代表25.24°C）随时间缓慢波动，符合室内自然热惯性，无剧烈跳变导致的传感器故障迹象。烟雾报警器和漏水传感器在日志期间无任何告警触发。",
    "4. 设备功能正常：8月30日的门锁手动操作事件表明执行器工作正常；灯光开关与运动传感器联动逻辑未见明显冲突（如无人时亮灯持续过久等极端情况未在片段中体现为异常）。"
  ],
  "key_evidence": [
    "8月28日20:41 front_door_contact = True，随后几天早晨均有正常的门锁操作和人员活动，符合生活规律。",
    "全天多个房间（living_room, bedroom, kitchen, bathroom）的 occupancy_sensor 持续交替触发，证明住户处于活跃状态，无跌倒或昏迷迹象。",
    "所有安全类传感器（smoke_co_alarm, water_leak_detector）在日志窗口内无报警记录。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需紧急干预。",
    "建议定期校准温度传感器以确保读数精度，并检查入户门闭合后的传感器反馈是否及时（若长期保持开启状态可考虑优化设置）。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "intrusion",
  "threat_description": "这些变化表明存在安全异常。",
  "reasoning": [
    "推理步骤1: 我把本可由正常模式解释的事件误判成了异常。"
  ],
  "key_evidence": [
    "正常样本仍保持日常出门；异常样本后续数天只剩室内活动。"
  ],
  "recommended_actions": [
    "建议立即检查并触发安全响应。"
  ]
}


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: 115

## 跨天活动摘要
- 2026-07-04: living_room=209, bedroom=241, kitchen=239, entrance=229, bathroom=92
- 2026-07-05: living_room=210, bedroom=242, kitchen=240, entrance=230, bathroom=64
- 2026-07-06: living_room=208, bedroom=242, kitchen=241, entrance=230, bathroom=60

## 设备事件日志
[2026-07-04T06:09:04] kitchen_light | OnOff.OnOff = True
[2026-07-04T10:34:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T10:52:00] kitchen_light | OnOff.OnOff = True
[2026-07-04T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-04T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-04T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-04T11:19:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T11:22:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-04T11:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-04T11:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-04T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-04T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-04T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-04T11:54:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T11:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-04T12:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-04T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-04T12:09:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-04T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-04T12:19:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T12:22:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-04T12:26:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-04T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-04T12:42:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-04T12:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-04T12:54:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T13:19:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T13:39:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-04T17:08:00] kitchen_light | OnOff.OnOff = True
[2026-07-05T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-05T11:06:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T11:26:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-05T11:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-05T11:51:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T11:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-05T12:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-05T12:06:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-05T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-05T12:16:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-05T12:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-05T12:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-05T12:35:00] kitchen_light | OnOff.OnOff = True
[2026-07-05T12:36:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T12:37:14] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-05T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-05T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-05T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-05T12:57:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T13:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-05T13:06:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-05T13:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-05T13:16:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-05T13:22:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T13:36:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T13:56:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T14:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-06T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-06T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-06T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-06T11:10:00] kitchen_light | OnOff.OnOff = True
[2026-07-06T11:15:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-06T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-06T11:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-06T11:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-06T11:45:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-06T11:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-06T12:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-06T12:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-06T12:10:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-06T12:15:00] kitchen_light | OnOff.OnOff = True
[2026-07-06T12:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:23:02] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-06T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-06T12:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-06T12:30:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-06T12:39:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-06T12:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-06T12:50:04] 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。

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "未检测到安全威胁或异常情况，设备日志显示独居老人的日常活动模式稳定且符合预期。",
  "reasoning": [
    "1. 活动规律性分析：日志覆盖了7月4日至6日三天，每天中午时段（约10:30-13:30）在客厅、厨房、卧室和玄关均有频繁的运动传感器触发记录。这种高频次的房间移动符合独居老人在家中进行日常活动（如做饭、休息、看电视）的行为特征，不存在长时间静止不动导致的'abnormal_inactivity'风险。",
    "2. 关键设备状态检查：重点关注的厨房灯（kitchen_light）仅在特定时间点开启（如11:52, 12:05, 17:08等），且与厨房运动传感器（kitchen_occupancy）的激活时间高度吻合，表明有人在使用厨房区域。没有发现无人时灶具或灯光长开的迹象，排除了'unattended_cooking'或火灾风险。",
    "3. 环境与安全指标正常：温度传感器读数在合理范围内（约24-25°C），无剧烈波动；未检测到烟雾报警器（smoke_co_alarm）或漏水传感器（water_leak_detector）的报警事件；入户门锁（door_lock）在日志片段中未出现异常解锁记录，且运动传感器显示的进出活动符合正常生活节奏。"
  ],
  "key_evidence": [
    "连续三天中午时段各房间运动传感器持续活跃，证明住户处于清醒和活动状态。",
    "厨房灯开启时间与厨房 occupancy 检测同步，无无人值守烹饪迹象。",
    "所有温湿度数据平稳，无烟雾、漏水或入侵报警信号。"
  ],
  "recommended_actions": [
    "继续保持当前的监控策略，无需干预。",
    "建议定期校准温度传感器以确保长期数据准确性，尽管当前数据看起来正常。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "intrusion",
  "threat_description": "这些变化表明存在安全异常。",
  "reasoning": [
    "推理步骤1: 我把本可由正常模式解释的事件误判成了异常。"
  ],
  "key_evidence": [
    "正常样本午餐时间有小幅波动；异常样本跨天明显后移。"
  ],
  "recommended_actions": [
    "建议立即检查并触发安全响应。"
  ]
}


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
- 2026-07-11: living_room=210, bedroom=242, kitchen=240, entrance=230, bathroom=64
- 2026-07-12: living_room=208, bedroom=242, kitchen=241, entrance=230, bathroom=60
- 2026-07-13: living_room=210, bedroom=240, kitchen=240, entrance=229, bathroom=62

## 设备事件日志
[2026-07-11T06:05:10] kitchen_light | OnOff.OnOff = True
[2026-07-11T10:31:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T10:51:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-11T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-11T11:16:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-11T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-11T11:36:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-11T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-11T11:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-11T11:51:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-11T12:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-11T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-11T12:06:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-11T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-11T12:16:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-11T12:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-11T12:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-11T12:36:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:37:14] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-11T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-11T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-11T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-11T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-11T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-11T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-11T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-11T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-12T10:55:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-12T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-12T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-12T11:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-12T11:50:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-12T12:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-12T12:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-12T12:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-12T12:15:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-12T12:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:24:19] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-12T12:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-12T12:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-12T12:35:00] kitchen_light | OnOff.OnOff = True
[2026-07-12T12:35:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-12T12:44:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-12T12:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-12T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-12T13:00:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-12T13:09:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-12T13:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-12T13:20:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-12T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-12T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-12T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-12T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-12T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-12T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-12T14:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-13T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-13T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-13T10:57:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:17:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-13T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-13T11:32:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:35:58] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T11:41:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-13T11:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-13T11:52:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-13T11:57:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:01:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-13T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-13T12:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-13T12:15:00] kitchen_light | OnOff.OnOff = True
[2026-07-13T12:17:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-13T12:22:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-13T12:35:58] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-13T12:46:08] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-13T12:52:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516

## 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。

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "未检测到安全威胁或异常情况，设备日志显示独居老人的日常活动规律且正常。",
  "reasoning": [
    "1. 活动模式分析：日志显示老人在上午10:30-14:00期间活跃，涉及客厅、厨房、卧室和玄关的频繁移动（Occupancy传感器持续触发），符合老年人白天起床后在主要生活区域活动的习惯。",
    "2. 关键设备行为：厨房灯（kitchen_light）仅在中午时段（12:05, 12:35, 12:15）开启，这与午餐准备或用餐时间高度吻合，未发现深夜或长时间无人时的异常亮灯，排除了遗忘关闭或误操作的风险。",
    "3. 环境数据合理性：温度传感器读数（如2500-2550代表25.0-25.5°C）处于舒适区间，且随时间缓慢变化，无剧烈跳变，表明传感器工作正常，无漂移或故障迹象。",
    "4. 安全性检查：未检测到烟雾报警器触发、漏水传感器报警或门锁异常开启记录。入户门传感器虽有触发，但结合室内人员活动轨迹，属于正常的进出或内部移动，无入侵特征。"
  ],
  "key_evidence": [
    "厨房灯仅在12:00-13:00左右开启，符合午餐时段习惯。",
    "多房间运动传感器在白天持续有信号，证明老人处于清醒和活动状态，无跌倒或长时间静止风险。",
    "温度读数稳定在24-26°C之间，无异常波动。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需干预。",
    "建议定期校准温度传感器以确保长期数据准确性。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "intrusion",
  "threat_description": "这些变化表明存在安全异常。",
  "reasoning": [
    "推理步骤1: 我把本可由正常模式解释的事件误判成了异常。"
  ],
  "key_evidence": [
    "正常样本午餐时间有小幅波动；异常样本跨天明显后移。"
  ],
  "recommended_actions": [
    "建议立即检查并触发安全响应。"
  ]
}


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: front_door_contact
- 已选事件数: 107

## 跨天活动摘要
- 2026-08-19: living_room=208, bedroom=242, kitchen=240, entrance=231, bathroom=60
- 2026-08-20: living_room=210, bedroom=240, kitchen=239, entrance=230, bathroom=62
- 2026-08-21: living_room=207, bedroom=241, kitchen=239, entrance=232, bathroom=57

## 设备事件日志
[2026-08-19T06:58:08] front_door_contact | BooleanState.StateValue = False
[2026-08-19T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-19T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-19T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-19T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-19T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-19T08:13:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-19T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-19T08:23:02] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-19T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-19T08:27:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-19T08:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-19T08:40:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-19T08:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-19T08:45:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-19T08:52:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-19T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-19T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-19T09:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-19T09:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-19T09:10:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-19T09:17:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-19T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-19T09:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-08-19T09:35:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-19T09:42:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-19T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-19T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-19T10:00:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-19T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-19T10:30:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-19T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-20T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-20T08:47:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-20T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-20T09:17:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-20T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-20T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-20T09:35:58] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T09:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-20T09:42:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-20T09:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:49:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-20T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-20T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-20T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-20T10:07:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-20T10:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:14:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-20T10:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-20T10:20:00] front_door_contact | BooleanState.StateValue = False
[2026-08-20T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-20T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-20T10:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-20T10:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:39:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-20T10:47:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-20T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-20T10:56:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-20T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-20T11:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-20T11:05:58] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-20T11:07:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-20T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-20T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-20T11:37:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-20T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-21T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-21T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-21T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-21T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-21T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-21T08:01:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-08-21T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-21T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-21T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-21T08:50:00] front_door_contact | BooleanState.StateValue = False

## 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。

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "未检测到安全威胁或异常情况，设备日志显示住户活动规律，环境参数正常。",
  "reasoning": [
    "1. 门窗状态分析：重点关注的入户门传感器 (front_door_contact) 在三天内均报告为 False（关闭/锁定）。虽然日志中缺少 'Open' 事件，但这符合独居老人在家期间门窗保持关闭的常态，且没有伴随异常的入侵报警或多次尝试开锁记录，属于正常静态状态。",
    "2. 人员活动模式分析： occupancy_sensor（运动传感器）在客厅、厨房、卧室等区域频繁触发，表明住户在白天有正常的居家活动轨迹。例如8月19日和20日早晨，玄关和厨房均有活动迹象，随后客厅持续有人，符合老人起床后在家活动的习惯。",
    "3. 环境与设备状态分析：温度传感器读数稳定（约24-25°C），无剧烈波动；烟雾报警器、漏水传感器无任何告警触发；灶具仅在8月20日上午短暂开启并随后关闭，未见长时间无人看管烹饪的迹象。",
    "4. 综合判断：所有关键安全设备（门锁、烟感、水浸）无异常触发，住户活动符合日常规律，无跌倒、长时间静止或非法入侵迹象。"
  ],
  "key_evidence": [
    "front_door_contact 连续多日保持 False (Closed)，无异常开启记录",
    "occupancy_sensor 在 living_room, kitchen, bedroom 呈现规律的日间活动模式",
    "smoke_co_alarm 和 water_leak_detector 全程无告警事件",
    "kitchen_cook_surface 仅短暂开启一次，无超时未关风险"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需干预",
    "建议定期校准温度传感器以确保读数准确性（虽目前看起来正常）"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "intrusion",
  "threat_description": "这些变化表明存在安全异常。",
  "reasoning": [
    "推理步骤1: 我把本可由正常模式解释的事件误判成了异常。"
  ],
  "key_evidence": [
    "正常样本仍保持日常出门；异常样本后续数天只剩室内活动。"
  ],
  "recommended_actions": [
    "建议立即检查并触发安全响应。"
  ]
}


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: 110

## 跨天活动摘要
- 2026-08-07: living_room=210, kitchen=241, bedroom=240, entrance=229, bathroom=62
- 2026-08-08: living_room=207, bedroom=241, kitchen=241, entrance=231, bathroom=57

## 设备事件日志
[2026-08-07T06:04:36] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-07T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-07T10:32:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-07T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-07T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-07T11:07:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-07T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-07T11:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-07T11:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-07T11:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-07T11:32:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-07T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-07T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-08-07T11:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-07T11:51:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T11:57:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-07T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-07T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-07T12:05:58] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-07T12:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-07T12:16:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-07T12:22:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-07T12:22:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-07T12:31:00] living_room_light | OnOff.OnOff = False
[2026-08-07T12:31:10] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-07T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-07T12:35:58] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-07T12:41:08] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-07T12:46:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-07T12:52:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-08-07T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-07T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-07T13:06:08] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-07T13:11:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-07T13:22:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-07T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-07T13:52:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-07T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-08-07T17:09:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-08T10:25:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-08T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-08T10:55:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:00:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-08T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-08T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-08T11:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:20:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-08T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-08T11:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-08T11:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:26:48] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-08T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-08T11:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-08T11:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-08T11:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-08T11:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-08T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-08T12:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-08T12:05:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-08T12:05:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-08T12:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-08T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-08-08T12:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:28:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-08T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-08T12:30:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-08T12:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:40:00] living_room_light | OnOff.OnOff = False
[2026-08-08T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-08T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-08T12:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-08T12:50:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-08-08T12:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T12:56:48] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504

## 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": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本做饭持续 20 分钟左右；异常样本连续两天都只持续约 5 分钟。"
  ],
  "key_evidence": [
    "正常样本做饭持续 20 分钟左右；异常样本连续两天都只持续约 5 分钟。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "intrusion",
  "threat_description": "这些变化表明存在安全异常。",
  "reasoning": [
    "推理步骤1: 我把本可由正常模式解释的事件误判成了异常。"
  ],
  "key_evidence": [
    "正常样本做饭持续 20 分钟左右；异常样本连续两天都只持续约 5 分钟。"
  ],
  "recommended_actions": [
    "建议立即检查并触发安全响应。"
  ]
}


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: front_door_contact
- 已选事件数: 121

## 跨天活动摘要
- 2026-08-09: living_room=207, bedroom=241, kitchen=239, entrance=232, bathroom=57
- 2026-08-10: living_room=209, bedroom=240, kitchen=239, entrance=231, bathroom=59
- 2026-08-11: living_room=210, bedroom=242, kitchen=240, entrance=230, bathroom=58

## 设备事件日志
[2026-08-09T06:50:07] front_door_contact | BooleanState.StateValue = False
[2026-08-09T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-09T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-09T08:10:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-09T08:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-09T08:26:48] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-09T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-09T08:35:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:40:00] front_door_lock | DoorLock.LockState = 2
[2026-08-09T08:40:02] front_door_contact | BooleanState.StateValue = False
[2026-08-09T08:41:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-09T08:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-09T08:55:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-09T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-09T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-09T09:06:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-09T09:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-09T09:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-09T09:26:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-09T09:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-09T09:45:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-09T10:05:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T10:25:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-10T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-10T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-10T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-10T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-10T09:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-10T09:37:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-10T09:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:45:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-10T09:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-10T09:57:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-10T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-10T10:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:10:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-10T10:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-10T10:20:00] front_door_contact | BooleanState.StateValue = False
[2026-08-10T10:22:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-10T10:27:59] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-10T10:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:35:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-10T10:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-10T10:47:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-10T10:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-10T10:55:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-10T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-10T11:00:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-10T11:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-10T11:25:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T11:45:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T07:10:15] front_door_contact | BooleanState.StateValue = True
[2026-08-11T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-11T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-11T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-11T08:00:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-11T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-11T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-11T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-11T08:20:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-11T08:27:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-11T08:27:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-11T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-11T08:37:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-11T08:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-11T08:50:00] front_door_contact | BooleanState.StateValue = False
[2026-08-11T08:52:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-11T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-11T09:02:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-11T09:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-11T09:17:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-11T09:22:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-11T09:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-11T09:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-11T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-11T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-11T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550

## 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。

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "未检测到安全威胁或异常模式，所有设备日志符合独居老人的日常活动规律。",
  "reasoning": [
    "1. 门窗与门锁状态分析：入户门传感器（front_door_contact）在8月9日和10日大部分时间为False（关闭），仅在8月11日07:10短暂变为True（开启），随后于08:50恢复为False。结合08:27的手动开锁记录，这符合老人早晨出门或有人探访后关门离开的正常行为，未发现非法入侵迹象。",
    "2. 人员活动轨迹分析：运动传感器（occupancy_sensor）在客厅、卧室、厨房和玄关均有频繁的状态变化（0/1切换），且时间分布均匀（主要集中在08:00-11:00之间）。这种多房间的活动模式表明住户处于清醒和活动状态，排除了跌倒后无反应或长时间静止的健康风险。",
    "3. 环境与设备状态分析：温度传感器读数在合理范围内波动（约24-25°C），未见极端值。厨房灶具仅在8月10日10:55开启，随后日志中未出现持续的无人看管烹饪迹象（如长时间开启但无后续活动或烟雾报警触发），且整体生活节奏平稳，无火灾或燃气泄漏风险。"
  ],
  "key_evidence": [
    "入户门在8月11日07:10开启，08:50关闭，伴随手动开锁操作，符合正常出入逻辑。",
    "多个房间的运动传感器在上午时段持续检测到活动，证明住户意识清醒且行动正常。",
    "温度数据稳定，无异常高温或低温报警。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需紧急干预。",
    "建议定期校准门窗传感器，确保开合状态记录的准确性。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "intrusion",
  "threat_description": "这些变化表明存在安全异常。",
  "reasoning": [
    "推理步骤1: 我把本可由正常模式解释的事件误判成了异常。"
  ],
  "key_evidence": [
    "正常样本仍保持日常出门；异常样本后续数天只剩室内活动。"
  ],
  "recommended_actions": [
    "建议立即检查并触发安全响应。"
  ]
}