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: 111

## 跨天活动摘要
- 2026-07-28: living_room=209, bedroom=241, kitchen=240, entrance=231, bathroom=62
- 2026-07-29: living_room=209, bedroom=241, kitchen=240, entrance=231, bathroom=59
- 2026-07-30: living_room=210, bedroom=242, kitchen=240, entrance=231, bathroom=60

## 设备事件日志
[2026-07-28T05:56:03] kitchen_light | OnOff.OnOff = True
[2026-07-28T10:34:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T10:54:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-28T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-28T11:19:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T11:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-28T11:26:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-28T11:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-28T11:39:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-28T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-28T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-28T11:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-28T11:54:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T11:56:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-28T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-28T12:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-28T12:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-28T12:19:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T12:21:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-28T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-28T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-28T12:42:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-07-28T12:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-28T12:54:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:19:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T13:39:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T16:54:00] kitchen_light | OnOff.OnOff = True
[2026-07-29T10:59:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T11:19:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T11:39:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-29T11:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-29T11:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T11:59:26] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-29T12:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-29T12:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-29T12:19:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-29T12:26:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-29T12:34:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-29T12:35:00] kitchen_light | OnOff.OnOff = True
[2026-07-29T12:39:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-29T12:47:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-29T12:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-29T12:59:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-29T13:06:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-07-29T13:12:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-29T13:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-29T13:24:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T13:49:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T14:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-30T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-30T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-30T10:57:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:17:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-30T11:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:37:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-30T11:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-30T11:49:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-30T11:57:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-30T12:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-30T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-30T12:14:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:15:00] kitchen_light | OnOff.OnOff = True
[2026-07-30T12:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-30T12:22:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-30T12:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-30T12:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-30T12:39:00] living_room_light | OnOff.OnOff = False
[2026-07-30T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-30T12:42:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-30T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-30T12:54:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T12:57:03] entrance_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情况，设备日志显示住户活动规律且传感器数据正常。",
  "reasoning": [
    "1. 活动模式分析：日志显示住户在每天上午10:30至下午14:00左右活跃于客厅、卧室和厨房，符合独居老人白天的常规作息（如起床、用餐、休息）。入户门传感器仅在白天短暂触发（如11:49, 12:14等），且伴随玄关/客厅运动传感器激活，推测为正常进出或取快递等行为，无夜间非法入侵迹象。",
    "2. 厨房安全分析：虽然重点设备 kitchen_light 多次开启，但厨房灶具 (cook_surface) 状态始终未报告异常（日志中未出现持续的烹饪负载或烟雾报警），且厨房温度传感器读数稳定在25°C左右（Matter协议中通常以0.1度为单位，2527代表25.27°C），无过热现象。未发现无人看管烹饪导致的火灾风险。",
    "3. 传感器健康检查：所有温度传感器读数随时间推移呈现合理的自然波动（如从25.4°C缓慢降至24.9°C），符合室内环境温度变化规律，无传感器卡死（stuck）或漂移（drift）迹象。运动传感器频繁上报 'Occupancy=1' 是存在人员活动的正常表现，而非故障。"
  ],
  "key_evidence": [
    "厨房温度传感器读数稳定在25.0-25.4°C之间，无异常高温。",
    "全天无烟雾报警器 (smoke_co_alarm) 或漏水传感器 (water_leak_detector) 的触发记录。",
    "入户门锁及传感器仅在白天特定时段短暂激活，与室内其他区域活动同步，符合正常生活轨迹。",
    "温度数据呈线性缓变趋势，排除传感器硬件故障。"
  ],
  "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: SQ4
- 重点房间: living_room
- 重点设备: kitchen_occupancy, living_room_occupancy
- 已选事件数: 130

## 跨天活动摘要
- 2026-07-08: living_room=210, bedroom=241, kitchen=239, entrance=231, bathroom=59
- 2026-07-09: living_room=210, bedroom=242, kitchen=240, entrance=231, bathroom=60
- 2026-07-10: living_room=210, bedroom=241, kitchen=238, entrance=229, bathroom=61

## 设备事件日志
[2026-07-08T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-08T07:18:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-08T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-08T07:53:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-08T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-08T08:08:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T08:13:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T08:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-08T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-08T08:29:26] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T08:34:02] front_door_contact | BooleanState.StateValue = False
[2026-07-08T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-08T08:39:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T08:43:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-08T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-08T08:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T08:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-08T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-08T09:14:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T09:18:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-08T09:29:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-08T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-08T09:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-08T09:49:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T09:53:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-08T09:59:26] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-08T10:19:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T10:28:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-08T10:44:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T10:53:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-09T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-09T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T07:43:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-09T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-09T08:18:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:22:00] front_door_lock | DoorLock.LockState = 2
[2026-07-09T08:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-09T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-09T08:43:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:47:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-09T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-09T08:58:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-09T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-09T09:18:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:22:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-09T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-09T09:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-09T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-09T09:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-09T09:53:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:57:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-09T10:04:40] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-09T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-09T10:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T10:22:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-09T10:38:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T10:47:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-09T11:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T23:49:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-10T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T07:44:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-10T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-10T08:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-10T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-10T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T08:29:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:31:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-10T08:31:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-10T08:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-10T08:51:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-10T09:04:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-10T09:10:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T09:26:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-10T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-10T09:49:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-10T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T10:01:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:05:07] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-10T10:24:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:31:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T10:49:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:56:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-10T15:15:10] living_room_occupancy | OccupancySensing.Occupancy = 1

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

```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. **活动模式一致性分析**：对比2026-07-08至07-10的跨天摘要数据，各房间的活动计数（如living_room=210, kitchen=239/240/238）保持高度稳定，表明住户的生活作息规律，无突发的行为改变或长时间静止（排除health_concern或abnormal_inactivity）。",
    "2. **关键设备状态正常**：重点关注的kitchen_occupancy和living_room_occupancy传感器在早晨时段（07:00-11:00）均报告为占用状态（Occupancy=1），与温度传感器的读数变化及门锁操作时间吻合，证明有人类活动存在，排除了传感器故障（sensor_stuck/malfunction）导致误报无人或有人滞留的风险。",
    "3. **无入侵或异常事件**：入户门传感器仅在早晨常规时间关闭（08:34），门锁在第二天早晨有手动解锁记录（08:31），均为正常的离家/出门行为。全天未检测到深夜非法闯入、烟雾报警触发、漏水警报或灶具长时间无人看管等危险信号。"
  ],
  "key_evidence": [
    "连续三天（07-08至07-10）各房间活动计数高度一致，显示生活规律稳定。",
    "厨房和客厅运动传感器在早晨活跃时段持续报告占用状态，与温度变化和门锁操作时间逻辑自洽。",
    "未出现任何烟雾报警器、漏水传感器或门锁异常状态的告警日志。"
  ],
  "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读数准确性（当前读数单位疑似为0.1摄氏度，数值在合理范围内）。"
  ]
}
```

{
  "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": [
    "正常样本仍保持多房间活动；异常样本逐渐收缩到卧室附近。"
  ],
  "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_occupancy, living_room_occupancy
- 已选事件数: 124

## 跨天活动摘要
- 2026-07-09: living_room=211, bedroom=242, kitchen=239, entrance=231, bathroom=60
- 2026-07-10: living_room=209, bedroom=241, kitchen=239, entrance=229, bathroom=61
- 2026-07-11: living_room=209, bedroom=242, kitchen=237, entrance=230, bathroom=58

## 设备事件日志
[2026-07-09T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-09T07:33:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T07:53:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-09T08:13:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-09T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-09T08:22:00] front_door_lock | DoorLock.LockState = 2
[2026-07-09T08:22:19] living_room_light | OnOff.OnOff = True
[2026-07-09T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-09T08:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-09T08:33:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-09T08:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-09T08:47:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-09T08:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-09T08:58:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:04:40] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-09T09:12:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-09T09:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-09T09:23:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-09T09:32:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-09T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-09T09:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-09T09:48:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:52:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-09T10:12:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T10:18:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-09T10:32:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T10:38:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T23:49:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-10T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-10T08:04:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:24:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-10T08:31:00] front_door_lock | DoorLock.LockState = 2
[2026-07-10T08:31:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-10T08:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-10T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T08:49:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-10T08:56:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-10T09:01:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-10T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-10T09:14:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-10T09:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-10T09:26:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-10T09:34:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:35:07] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T09:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-10T09:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-10T09:51:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-10T09:59:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-10T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-10T10:26:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:34:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T10:46:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:54:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-10T23:50:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-11T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-11T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-11T08:04:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-11T08:24:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T08:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-11T08:33:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-11T08:40:57] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T08:44:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T08:46:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-11T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-11T08:58:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-11T09:04:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:06:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-11T09:10:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-11T09:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-11T09:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-11T09:29:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:31:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543

## 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. 活动模式分析：日志显示住户在早晨7:30-9:00之间活跃（厨房、客厅、卧室均有 occupancy 记录），随后活动减少，符合独居老人的日常作息（早起、活动、休息）。夜间23:49-23:50仍有客厅活动记录，可能是起夜或睡前最后活动，属于正常范围。",
    "2. 门锁状态分析：入户门锁（front_door_lock）在08:22和08:31显示 LockState = 2（通常表示 Locked 或 Unlocked 取决于具体实现，但结合 entrance_occupancy 持续为 1 且无异常开启/关闭序列，更倾向于门已锁好或处于常闭状态下的正常监测）。没有发现非正常时间的开门记录或多次失败尝试。",
    "3. 传感器数据一致性：温度传感器读数（如 living_room_temp_sensor 在 25.18°C - 25.56°C 之间波动）变化平缓，符合室内环境温度随时间缓慢变化的物理规律，无突变或漂移迹象。运动传感器（occupancy_sensor）的触发与住户活动逻辑一致，未发现长时间静止后的突然激活（可能暗示跌倒）或长时间无活动后的异常唤醒。",
    "4. 跨天对比：7月9日、10日、11日的活动摘要数据显示各房间的活动计数非常稳定（living_room ~209-211, kitchen ~237-239），表明住户生活习惯高度一致，无突发性行为改变（如整日不出门或深夜频繁外出），排除了健康突发状况或外部入侵的可能性。"
  ],
  "key_evidence": [
    "跨天活动摘要显示各房间活动计数连续三天保持稳定，无剧烈波动。",
    "温度传感器读数在合理范围内平滑变化，无异常跳变。",
    "运动传感器触发时间与住户日常作息（早晨起床、活动）相符，无长时间异常静止或夜间高频异常活动。",
    "门锁状态记录简单，未见异常开锁或非法入侵迹象。"
  ],
  "recommended_actions": [
    "继续常规监控，无需立即干预。",
    "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": [
    "正常样本仍保持多房间活动；异常样本逐渐收缩到卧室附近。"
  ],
  "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
- 2026-08-26: living_room=209, bedroom=241, kitchen=239, entrance=229, bathroom=61
- 2026-08-27: living_room=208, bedroom=242, kitchen=238, entrance=230, bathroom=58
- 2026-08-28: living_room=209, bedroom=243, kitchen=241, entrance=232, bathroom=59

## 设备事件日志
[2026-08-26T06:04:06] kitchen_light | OnOff.OnOff = True
[2026-08-26T10:31:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T10:51:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-26T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-26T11:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T11:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-26T11:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-26T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-26T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-26T11:46:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-26T11:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T11:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-26T12:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-26T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-08-26T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-08-26T12:11:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-26T12:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-26T12:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-26T12:31:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-26T12:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-26T12:46:07] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-26T12:51:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-26T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-26T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-26T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-26T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-27T10:56:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-27T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-27T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-27T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-27T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-27T11:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-27T11:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-27T11:59:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:01:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-27T12:06:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-27T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-27T12:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-27T12:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:26:00] living_room_light | OnOff.OnOff = False
[2026-08-27T12:26:08] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-27T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-27T12:35:00] kitchen_light | OnOff.OnOff = True
[2026-08-27T12:36:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-27T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-27T12:46:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-27T12:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-27T12:59:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T13:01:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-27T13:06:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T13:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-27T13:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-27T13:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-27T13:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T13:26:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T13:46:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T14:03:19] living_room_light | OnOff.OnOff = True
[2026-08-27T14:13:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T10:37:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T10:57:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-28T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-28T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-28T11:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:27:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-28T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-28T11:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-28T11:47:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-28T12:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-28T12:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-28T12:12:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:15:00] kitchen_light | OnOff.OnOff = True
[2026-08-28T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-28T12:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:21:08] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-28T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-28T12:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-28T12:32:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-28T12:41:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-28T12:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-28T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512

## 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. 活动模式分析：日志显示住户在每天上午10:30至下午14:00左右活跃于客厅、卧室和厨房，符合独居老人白天的常规作息（如起床、准备午餐、休息）。入户门传感器仅在白天短暂触发（如11:26, 12:01等），且伴随室内运动传感器激活，推测为正常进出或检查门窗，无夜间非法入侵迹象。",
    "2. 烹饪安全检查：虽然重点设备 kitchen_light 多次开启（如06:04, 12:05, 12:35, 12:15），但厨房灶具[cook_surface]在整个日志期间从未被激活（无状态变化记录）。这表明灯光开启可能仅用于照明而非烹饪，或者烹饪行为未被该特定片段捕获，但结合没有烟雾报警器报警和温度异常，暂不判定为未看管烹饪风险。",
    "3. 环境与设备状态：各房间温度读数（约24-25°C）处于舒适范围，无剧烈波动。所有传感器（运动、温度、接触）均返回有效数据，未发现传感器卡死（stuck）或漂移（drift）的异常恒定值。窗帘在中午时段打开（位置10000/100%），符合自然光照习惯。"
  ],
  "key_evidence": [
    "全天无 cook_surface 激活记录，排除火灾/未看管烹饪的直接证据。",
    "入户门仅在白天短暂开启，且与室内人员活动同步，无异常闯入模式。",
    "温度传感器数值稳定在2400-2550之间（对应24-25.5°C），无极端值。",
    "运动传感器在白天持续有规律地报告占用状态，表明住户生命体征正常。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需紧急干预。",
    "建议确认厨房灯频繁开启是否仅为照明需求，若涉及烹饪，可进一步关联灶具传感器数据以完善安全闭环。"
  ]
}
```

{
  "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: 110

## 跨天活动摘要
- 2026-07-06: living_room=208, bedroom=242, kitchen=238, entrance=230, bathroom=58
- 2026-07-07: living_room=209, bedroom=243, kitchen=241, entrance=232, bathroom=59
- 2026-07-08: living_room=209, bedroom=240, kitchen=240, entrance=231, bathroom=62

## 设备事件日志
[2026-07-06T06:09:02] kitchen_light | OnOff.OnOff = True
[2026-07-06T10:31:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T10:51:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-06T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-06T11:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:21:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-06T11:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-06T11:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-06T11:39:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-06T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-06T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-06T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-06T11:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T11:56:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-06T12:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-06T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-06T12:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-06T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-06T12:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:21:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-06T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-06T12:36:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-06T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-06T12:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-06T12:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T12:56:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T13:16:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T13:36:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-06T17:03:00] kitchen_light | OnOff.OnOff = True
[2026-07-07T11:00:00] kitchen_light | OnOff.OnOff = True
[2026-07-07T11:07:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:27:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-07T11:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-07T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-07T11:57:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-07T12:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-07T12:17:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-07T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-07T12:32:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:35:00] kitchen_light | OnOff.OnOff = True
[2026-07-07T12:37:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-07T12:46:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-07T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-07T12:57:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-07T13:02:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-07T13:11:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-07T13:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-07T13:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-07T13:32:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:52:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-08T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-08T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-08T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-08T11:02:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:22:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-08T11:32:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-08T11:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-08T11:47:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-08T11:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-08T12:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-08T12:12:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T12:15:00] kitchen_light | OnOff.OnOff = True
[2026-07-08T12:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-08T12:22:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-08T12:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-08T12:32:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-08T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-08T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-08T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-08T12:54:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T12:57:00] kitchen_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规律且正常。",
  "reasoning": [
    "1. 活动模式分析：日志主要记录了2026-07-06至07-08中午时段的活动。老人通常在上午10:30-11:00左右开始活跃（客厅/厨房传感器触发），并在中午12:00-13:00期间在卧室休息（卧室传感器触发，厨房/客厅无人）。这符合老年人典型的作息习惯（早起、午休）。",
    "2. 烹饪行为检查：重点关注的厨房灶具(cook_surface)仅在07-06 11:39出现一次关闭事件，此前有开启迹象（虽未直接记录开启时间，但结合灯光和 occupancy 可推断）。整个观察期内没有发现灶具长时间无人看管（unattended cooking）的情况，因为每次烹饪后不久老人便离开厨房进入卧室休息，且无烟雾报警器报警。",
    "3. 入侵与异常检测：入户门(entrance)传感器仅在白天短暂触发（如11:26, 12:01等），随后立即消失，表明是短暂的进出或误触，而非持续非法入侵。所有门窗传感器均无异常开启记录。",
    "4. 健康与安全指标：温度读数在合理范围内（24-25°C左右波动），无极端高温提示火灾风险。无漏水传感器报警。老人活动轨迹清晰，从客厅到厨房再到卧室，逻辑连贯，无跌倒后的静止不动（abnormal_inactivity）迹象。"
  ],
  "key_evidence": [
    "厨房灶具仅在07-06 11:39有一次关闭记录，且后续无长时间无人值守的烹饪行为。",
    "每日活动节奏一致：上午活跃于客厅/厨房，中午转移至卧室休息，符合独居老人生活习惯。",
    "入户门传感器仅在白天短暂触发，无夜间或非正常时间的异常开门记录。",
    "各房间温度传感器数值稳定，无火灾或设备故障导致的异常高温。"
  ],
  "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读数准确性，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: front_door_contact
- 已选事件数: 122

## 跨天活动摘要
- 2026-07-14: living_room=209, bedroom=243, kitchen=240, entrance=233, bathroom=59
- 2026-07-15: living_room=209, bedroom=240, kitchen=239, entrance=232, bathroom=62
- 2026-07-16: living_room=210, bedroom=241, kitchen=240, entrance=232, bathroom=63

## 设备事件日志
[2026-07-14T06:51:08] front_door_contact | BooleanState.StateValue = False
[2026-07-14T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-14T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-14T08:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-14T08:16:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-14T08:25:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-14T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-14T08:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-14T08:42:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-14T08:50:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-14T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-14T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-07-14T09:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-14T09:07:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-14T09:15:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-14T09:20:52] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-14T09:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-14T09:32:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-14T09:40:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-14T09:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-14T09:57:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T10:17:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T10:37:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-15T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-15T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-15T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-15T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-15T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-15T09:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-15T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-15T09:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-15T09:47:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:50:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-15T09:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-15T10:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-15T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-15T10:12:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:15:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-15T10:20:00] front_door_contact | BooleanState.StateValue = False
[2026-07-15T10:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-15T10:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-15T10:32:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:35:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-15T10:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-15T10:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-15T10:57:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:00:04] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-15T11:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-15T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-15T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-15T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-15T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-15T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-16T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-16T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-16T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-16T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-16T08:01:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-16T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-16T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-16T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-16T08:21:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-16T08:27:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-16T08:27:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-16T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-16T08:37:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-16T08:47:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-16T08:50:00] front_door_contact | BooleanState.StateValue = False
[2026-07-16T08:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-16T09:02:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-16T09:12:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-16T09:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-16T09:22:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-16T09:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-16T09:37:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-16T09:57:03] 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情况，设备日志显示住户活动规律，门锁状态与传感器数据一致，无入侵、跌倒或设备故障迹象。",
  "reasoning": [
    "1. 门锁状态分析：重点关注的 front_door_contact 在三天内均保持 False（关闭/锁定）状态。虽然日志中未出现 'Open' 事件，但结合 entrance_occupancy_sensor 频繁触发 Occupancy=1，表明有人在家或在玄关活动，且入户门始终处于关闭状态，排除了非法入侵（intrusion）风险。",
    "2. 住户行为模式分析：日志显示典型的独居老人日常作息。早晨（06:50-09:00）各房间运动传感器依次激活，温度传感器读数随时间缓慢上升，符合起床、洗漱、活动的正常生理和环境变化规律。没有发现长时间无活动（abnormal_inactivity）或深夜异常活动。",
    "3. 设备一致性检查：入口处的运动传感器（entrance_occupancy）多次触发，同时客厅（living_room）和厨房（kitchen）也有相应的活动记录，说明住户在家中正常移动。没有发现传感器卡死（sensor_stuck，如持续不变的值）或漂移（sensor_drift，如温度剧烈不合理跳变）的迹象。温度读数在合理范围内（约24-25°C）。",
    "4. 特定事件验证：7月16日08:27出现的 front_door_lock 手动上锁事件，发生在早晨活动期间，且随后门窗传感器仍为关闭状态，这通常是住户出门前或整理家务时的正常操作，并未伴随门开启后的异常滞留或无人看管烹饪等风险。"
  ],
  "key_evidence": [
    "front_door_contact 连续三天保持 False (Closed)，无开启记录。",
    "entrance_occupancy 频繁触发 Occupancy=1，证明有人在室内/玄关活动，非空屋。",
    "温度传感器读数平稳上升（如客厅从25.18°C升至25.59°C），符合白天室温自然变化。",
    "各房间运动传感器按时间顺序激活，符合正常的居家活动轨迹。"
  ],
  "recommended_actions": [
    "无需采取紧急措施。",
    "建议继续监控早晨时段的设备联动情况，确保自动化场景（如晨起灯光）正常工作即可。"
  ]
}
```

{
  "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: SQ4
- 重点房间: living_room
- 重点设备: kitchen_cook_surface
- 已选事件数: 117

## 跨天活动摘要
- 2026-08-28: living_room=209, kitchen=241, bedroom=240, entrance=231, bathroom=62
- 2026-08-29: living_room=210, kitchen=242, bedroom=241, entrance=231, bathroom=63

## 设备事件日志
[2026-08-28T06:05:34] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-28T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-28T10:12:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-28T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-28T10:42:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-28T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-28T11:02:00] kitchen_light | OnOff.OnOff = True
[2026-08-28T11:02:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-28T11:05:58] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T11:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-28T11:12:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-28T11:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-28T11:22:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-28T11:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-28T11:32:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-28T11:35:58] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-28T11:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:47:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-28T11:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-28T11:57:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-28T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-28T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-28T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-28T12:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:12:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-28T12:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-28T12:22:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:22:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-28T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-28T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-28T12:34:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-28T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-28T12:42:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-28T12:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-28T12:52:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:54:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-28T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-08-28T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-28T13:05:58] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T13:07:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-28T13:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-28T13:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:19:09] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-28T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-28T13:32:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-08-28T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-08-28T13:58:10] living_room_light | OnOff.OnOff = True
[2026-08-28T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-08-28T14:13:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-29T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-29T10:12:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-29T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-29T10:42:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-29T11:02:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-29T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-29T11:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-29T11:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-29T11:22:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-29T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-29T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-29T11:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-29T11:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:52:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-29T12:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-29T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-29T12:05:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-29T12:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-29T12:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T12:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-29T12:17:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-08-29T12:23:39] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-29T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-29T12:28:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-29T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-08-29T12:31:00] living_room_light | OnOff.OnOff = False
[2026-08-29T12:31:09] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-29T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-29T12:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T12:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "未检测到安全威胁，日志显示为独居老人的正常日常生活活动，烹饪行为有始有终且伴随人员在场。",
  "reasoning": [
    "1. 烹饪行为分析：日志中记录了两次厨房灶具（kitchen_cook_surface）的使用事件。第一次在08-28 12:00开启，12:22关闭，持续22分钟；第二次在08-29 12:05开启，12:28关闭，持续约23分钟。这两次操作均发生在中午时段，符合正常的午餐准备习惯。",
    "2. 人员在场验证：在两次烹饪期间，厨房运动传感器（kitchen_occupancy）均保持激活状态（Occupancy=1），表明老人在烹饪过程中一直待在厨房或附近，不存在无人看管（unattended cooking）的风险。",
    "3. 环境与安全指标：虽然温度传感器读数较高（如254x，推测单位为0.1摄氏度即25.4°C左右，属于舒适室温范围，非高温报警），但烟雾报警器（smoke_co_alarm）和漏水传感器（water_leak_detector）在日志片段中未触发任何异常警报。",
    "4. 整体活动模式：跨天摘要显示两天的活动量（Event Counts）非常稳定（Living Room ~210, Kitchen ~241等），且时间分布规律（早晨起床、上午活动、中午做饭、下午休息），符合独居老人的健康作息，无跌倒（fall）或长时间静止（abnormal_inactivity）的迹象。"
  ],
  "key_evidence": [
    "kitchen_cook_surface OnOff=True (12:00) 后紧跟 kitchen_occupancy Occupancy=1，且持续至 Off=False (12:22)，证明有人看管。",
    "次日同样模式：kitchen_cook_surface OnOff=True (12:05) 伴随 kitchen_occupancy Occupancy=1，直至 Off=False (12:28)。",
    "两天活动计数高度一致，无突发性异常中断或激增。",
    "无 smoke_co_alarm 或 water_leak_detector 的触发记录。"
  ],
  "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（尽管当前读数看似正常，但数值格式需确认是否包含小数点偏移）。"
  ]
}
```

{
  "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。"
  ]
}