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: 一室一厅 (Studio/1BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅台灯[onoff_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]
- 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], 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]
- 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]

## 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: SQ1
- 重点房间: living_room
- 重点设备: living_room_ac
- 已选事件数: 134

## 设备事件日志
[2026-07-13T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-13T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-13T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-13T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-13T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-13T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-13T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-13T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-13T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-13T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-13T04:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-13T04:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-13T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-13T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-13T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-13T05:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2460
[2026-07-13T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T05:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-07-13T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-13T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-13T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-13T06:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-13T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-13T06:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-13T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-07-13T06:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-13T06:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-13T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-07-13T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-13T06:26:10] bedroom_light | OnOff.OnOff = True
[2026-07-13T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-13T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-13T06:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-13T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-13T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-13T06:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-13T06:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-13T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-13T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-13T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-13T06:54:04] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-13T06:54:43] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T06:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-13T07:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-13T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-13T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-13T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-13T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-13T07:13:14] kitchen_light | OnOff.OnOff = True
[2026-07-13T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-13T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-13T07:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-13T07:24:43] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T07:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-07-13T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-13T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-13T07:33:00] kitchen_light | OnOff.OnOff = False
[2026-07-13T07:33:09] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-13T07:33:11] front_door_contact | BooleanState.StateValue = False
[2026-07-13T07:33:20] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-07-13T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-13T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-13T07:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-07-13T07:43:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T07:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-13T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-13T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-13T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-13T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-13T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-13T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-13T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-13T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-13T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-13T08:24:43] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-13T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-13T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-13T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-13T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-13T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-13T08:43:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-13T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-13T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-13T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-13T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-13T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-13T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-13T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-13T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-13T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-07-13T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-13T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-07-13T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-13T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-13T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-07-13T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-13T09:24:43] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-13T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-13T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-13T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-13T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-13T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-13T09:43:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-13T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-13T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-13T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-13T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-13T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-13T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-13T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-13T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-13T10:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-13T10:24:43] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-13T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-13T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-13T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-13T10:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-13T10:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-13T10:43:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-13T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-13T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538

## 任务
请结合下面的 Matter 设备日志，判断是否存在设备健康问题，并说明可能的故障类型。

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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器读数异常偏高且波动剧烈，同时空调设备频繁离线/在线，表明传感器可能存在故障或数据上报错误。",
  "reasoning": [
    "1. 分析温度数据合理性：日志显示客厅温度从03:00的23.57°C（假设单位为0.01度）迅速上升至09:15的25.55°C，并在短时间内出现多次非线性的剧烈跳变（如04:00到04:30持续上升，但05:05又下降）。虽然夏季室温可能升高，但在凌晨至清晨时段（无人居住），温度变化曲线不符合典型的热惯性规律，且数值本身（23-25°C）在物理上是可能的，但结合后续空调状态看存在矛盾。",
    "2. 关联空调设备状态：日志中living_room_ac在09:00-09:20之间出现了三次 'DeviceOffline' 和 'DeviceOnline' 事件。这种频繁的断连重连通常不是正常的运行状态，可能暗示设备内部电路、Wi-Fi模块或传感器通信链路存在硬件故障。",
    "3. 综合判断：如果空调因过热保护而停机或传感器数据错误导致控制逻辑混乱，可能会引发频繁重启。此外，温度传感器读数在短时间内的微小波动（如几度内的上下跳动）对于静止环境下的数字传感器来说过于敏感，符合传感器漂移或接触不良导致的‘传感器故障’特征。"
  ],
  "key_evidence": [
    "[2026-07-13T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-13T09:02:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-13T09:08:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-13T09:10:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-13T09:18:00] living_room_ac | Event: DeviceOffline()",
    "客厅温度在03:00-09:00期间呈现非自然规律的快速上升趋势及局部波动"
  ],
  "recommended_actions": [
    "检查客厅空调及温度传感器的网络连接稳定性，尝试重启设备。",
    "校准或更换客厅温度传感器，确认读数是否准确。",
    "观察空调是否在高温下自动保护关机，若传感器读数正常则需检修空调主板。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "设备频繁离线重连",
  "reasoning": [
    "推理步骤1: 日志中出现了不存在的额外报警事件。"
  ],
  "key_evidence": [
    "我假设看到了一个未在日志中出现的 critical 告警。"
  ],
  "recommended_actions": [
    "判断为通信层不稳定，建议检查设备网络连接。"
  ]
}


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: 一室一厅 (Studio/1BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅台灯[onoff_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]
- 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], 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]
- 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]

## 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: SQ1
- 重点房间: living_room
- 重点设备: living_room_ac
- 已选事件数: 129

## 设备事件日志
[2026-07-10T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-10T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-10T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-10T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-10T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-10T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-10T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-10T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-10T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-10T04:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-10T04:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-10T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-10T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-10T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-10T05:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-10T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T05:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-10T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-10T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-07-10T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-07-10T06:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-07-10T06:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-10T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-07-10T06:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-10T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-10T06:28:02] bedroom_light | OnOff.OnOff = True
[2026-07-10T06:28:07] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-10T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-10T06:30:12] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-10T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-10T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-10T06:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-07-10T06:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-10T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-10T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-10T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-10T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-10T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-10T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-10T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-10T07:00:12] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-10T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-10T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-10T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-10T07:15:00] bathroom_light | OnOff.OnOff = False
[2026-07-10T07:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-10T07:15:20] kitchen_light | OnOff.OnOff = True
[2026-07-10T07:19:00] kitchen_light | OnOff.OnOff = False
[2026-07-10T07:19:21] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-10T07:19:23] front_door_contact | BooleanState.StateValue = False
[2026-07-10T07:19:30] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-07-10T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-10T07:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-10T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-10T07:30:12] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-07-10T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-10T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-10T07:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-10T07:46:25] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T07:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-10T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-10T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-10T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-10T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-10T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-10T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-10T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-10T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-10T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-10T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-10T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T08:30:12] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-10T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-10T08:46:25] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-10T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-10T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-10T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-10T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-10T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-10T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-10T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-07-10T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-10T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-07-10T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-10T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-10T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-07-10T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-10T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-10T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-10T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-10T09:30:12] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-10T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-10T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-10T09:46:25] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-10T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-10T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-10T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-10T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-10T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T10:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-10T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-10T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-10T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-10T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-10T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-10T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-10T10:30:12] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T10:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-10T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-10T10:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-10T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-10T10:46:25] bathroom_occupancy | OccupancySensing.Occupancy = 0

## 任务
请结合下面的 Matter 设备日志，判断是否存在设备健康问题，并说明可能的故障类型。

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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器读数异常偏高且波动剧烈，疑似硬件故障或安装位置不当导致测量失真。",
  "reasoning": [
    "1. 分析温度数值量级：日志中 `living_room_temp_sensor` 的 `MeasuredValue` 在 2367 到 2558 之间波动。根据 Matter 协议标准，TemperatureMeasurement Cluster 的 MeasuredValue 单位通常为厘氏度（centi-degrees Celsius），即需要除以 100 得到摄氏度。因此，实际读数为 23.67°C 至 25.58°C。这一范围对于室内环境温度来说是完全正常的，并非数值溢出或错误。",
    "2. 识别异常模式：尽管数值本身合理，但观察其变化趋势和频率发现异常。从 03:00 到 09:00，温度呈现持续、单调且快速的上升趋势（从 ~23.6°C 升至 ~25.4°C），期间没有任何下降或稳定迹象。在凌晨时段（无人居住，无烹饪热源），室内温度通常应保持相对稳定或随室外缓慢变化，不应出现如此剧烈的单向升温。",
    "3. 结合设备状态：日志显示客厅空调 (`living_room_ac`) 在 09:00 - 09:30 期间频繁出现 `DeviceOffline()` 和 `DeviceOnline()` 事件。如果空调因高温试图制冷但因离线失败，或者传感器本身故障导致误报高温从而触发错误的控制逻辑（虽然日志未直接显示空调调节动作，但离线可能与过热保护或通信干扰有关），这进一步佐证了环境数据的不可信性或设备的异常状态。",
    "4. 排除其他因素：卧室和厨房的温度传感器读数相对平稳（卧室~24.1-24.5°C，厨房~24.7-25.5°C），且厨房有灯光活动证明有人早起，但厨房温度并未像客厅那样呈现异常的持续飙升。客厅运动传感器一直为 0（无人），排除了人体散热导致的局部升温。"
  ],
  "key_evidence": [
    "living_room_temp_sensor 读数在 03:00-09:00 期间从 23.67°C 持续线性上升至 25.58°C，缺乏正常环境的波动性。",
    "living_room_ac 在 09:00-09:30 期间频繁离线/在线，可能与环境温度异常或设备故障有关。",
    "同一时间段内，无人居住的客厅温度变化幅度远超卧室和厨房，且方向单一。"
  ],
  "recommended_actions": [
    "检查客厅温度传感器的物理安装位置，确认是否靠近热源（如阳光直射、电器散热口）或被遮挡。",
    "重启客厅温度传感器和空调，观察温度读数是否恢复正常波动范围。",
    "若问题持续，考虑更换客厅温度传感器，可能存在内部元件漂移或故障。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "low",
  "threat_type": "intrusion",
  "threat_description": "存在异常，但原因更可能属于其他类别。",
  "reasoning": [
    "推理步骤1: 日志里有异常，但我把它归因为另一类威胁。"
  ],
  "key_evidence": [
    "同一设备频繁离线/上线"
  ],
  "recommended_actions": [
    "建议按该错误类别处理。"
  ]
}


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: 一室一厅 (Studio/1BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅台灯[onoff_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]
- 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], 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]
- 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]

## 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: SQ1
- 重点房间: living_room
- 重点设备: living_room_ac
- 已选事件数: 121

## 设备事件日志
[2026-08-14T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-14T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-14T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-14T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-14T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-14T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-14T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-14T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-14T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-14T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2460
[2026-08-14T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-08-14T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-08-14T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-14T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-14T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-14T06:26:09] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T06:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-14T06:30:14] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-08-14T06:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-14T06:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-14T06:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-14T06:49:08] kitchen_light | OnOff.OnOff = True
[2026-08-14T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-08-14T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-08-14T06:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-14T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-14T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-14T07:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-08-14T07:19:39] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-14T07:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-14T07:28:00] kitchen_light | OnOff.OnOff = False
[2026-08-14T07:28:17] front_door_lock | DoorLock.LockState = 2
[2026-08-14T07:28:26] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-08-14T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-14T07:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-14T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-14T07:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-14T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-14T07:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-14T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-14T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-14T08:19:39] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-14T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-14T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-14T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-14T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-14T08:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-14T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-14T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-14T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-14T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-08-14T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-08-14T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-14T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-08-14T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-14T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-08-14T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-14T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-08-14T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-14T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-14T09:25:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-14T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-14T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-14T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-14T09:49:39] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-14T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-14T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-14T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-14T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-14T10:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-14T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-14T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-14T10:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-14T10:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-14T10:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-14T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-14T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-14T10:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-14T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-14T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-14T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-14T11:19:39] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-14T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-14T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-14T11:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-14T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-14T11:40:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-14T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-14T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-14T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-14T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-14T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-14T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-14T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-14T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-14T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-14T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-14T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-14T13:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0

## 任务
请结合下面的 Matter 设备日志，判断是否存在设备健康问题，并说明可能的故障类型。

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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器读数异常偏高且波动剧烈，同时客厅空调设备频繁离线/在线，表明存在硬件故障或通信干扰。",
  "reasoning": [
    "1. 温度数据异常：客厅温度传感器在凌晨至上午期间读数从2370（23.7°C）迅速攀升至2557（25.6°C），并在短时间内出现非线性的剧烈波动（如09:15的2545到09:35的2556）。考虑到此时段室内无人员活动（Occupancy=0），且其他房间（卧室、厨房）温度相对稳定或变化平缓，客厅温度的异常飙升不符合热力学自然规律，极可能是传感器故障或受到局部热源/干扰影响。",
    "2. 空调设备状态不稳定：日志显示客厅空调（living_room_ac）在短时间内多次触发 DeviceOffline() 和 DeviceOnline() 事件（09:00, 09:08, 09:10, 09:18）。这种频繁的断连重连通常意味着设备供电不稳、Wi-Fi/Zigbee信号干扰严重，或者设备内部模块存在硬件故障。",
    "3. 关联性分析：空调频繁重启可能导致其自身产生的热量分布不均，但更可能的是，空调与温度传感器位于同一区域，两者同时出现的异常（温度读数漂移+设备连接不稳定）指向该区域的智能家居子系统存在共同的问题根源（如网络拥塞导致Matter协议栈不稳定，或传感器本身损坏导致误报进而引发自动化逻辑混乱）。"
  ],
  "key_evidence": [
    "[2026-08-14T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-08-14T09:02:00] living_room_ac | Event: DeviceOnline()",
    "[2026-08-14T09:08:00] living_room_ac | Event: DeviceOffline()",
    "[2026-08-14T09:10:00] living_room_ac | Event: DeviceOnline()",
    "[2026-08-14T09:18:00] living_room_ac | Event: DeviceOffline()",
    "[2026-08-14T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556",
    "[2026-08-14T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557"
  ],
  "recommended_actions": [
    "检查客厅空调及温度传感器的网络连接稳定性，尝试重启路由器或增加信号中继。",
    "对客厅温度传感器进行校准测试，若读数持续异常则更换传感器。",
    "检查客厅空调电源适配器是否松动，确认设备固件是否为最新版本。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "设备频繁离线重连",
  "reasoning": [
    "推理步骤1: 日志中出现了不存在的额外报警事件。"
  ],
  "key_evidence": [
    "我假设看到了一个未在日志中出现的 critical 告警。"
  ],
  "recommended_actions": [
    "判断为通信层不稳定，建议检查设备网络连接。"
  ]
}


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: SQ1
- 重点房间: living_room
- 重点设备: living_room_ac
- 已选事件数: 117

## 设备事件日志
[2026-08-14T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-14T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-08-14T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-14T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-08-14T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-14T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-14T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-14T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-14T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-08-14T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-08-14T06:02:00] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T06:03:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-14T06:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T06:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-14T06:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-14T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-14T06:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-14T06:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T06:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-08-14T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-14T06:43:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-14T06:52:08] front_door_contact | BooleanState.StateValue = False
[2026-08-14T06:52:14] front_door_lock | DoorLock.LockState = 1
[2026-08-14T06:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-14T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T07:04:54] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T07:07:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T07:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-14T07:13:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T07:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-14T07:27:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-14T07:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-14T07:38:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T07:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-14T07:52:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T07:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-14T07:58:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T08:04:54] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-14T08:17:09] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-14T08:23:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-14T08:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-14T08:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-14T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-14T08:49:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-14T08:58:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-14T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-08-14T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-08-14T09:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-14T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-08-14T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-14T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-08-14T09:14:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-08-14T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-14T09:23:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-14T09:29:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-14T09:34:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-14T09:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-14T09:48:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-14T09:54:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-14T09:59:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:04:54] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-14T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-14T10:13:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-14T10:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-14T10:24:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:33:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-14T10:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-14T10:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-14T10:49:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-14T10:58:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-14T11:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:09:00] kitchen_light | OnOff.OnOff = True
[2026-08-14T11:09:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-14T11:14:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-14T11:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-14T11:29:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-14T11:34:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-14T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-14T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539

## 任务
根据以下传感器与设备记录，评估目标设备当前工作状态是否正常。如异常，请给出故障判断依据。

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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅空调频繁离线/在线，且客厅温度传感器读数异常偏高（约25.5°C），远超卧室和卫生间正常室温，疑似传感器故障或设备通信不稳定。",
  "reasoning": [
    "1. 分析温度数据分布：对比同一时间段内各房间的温度传感器数据，卧室温度稳定在23.8-24.5°C之间，厨房温度在24.8-25.0°C左右（考虑到灶具使用可能略高）。然而，客厅温度传感器读数在09:00后突然飙升至25.3-25.5°C，并持续高位，这与居住者的活动区域（主要在卧室、厨房）及整体环境热平衡不符，存在明显的离群值。",
    "2. 分析设备状态日志：目标设备'living_room_ac'在09:00至09:20期间出现了多次'DeviceOffline()'和'DeviceOnline()'事件（共4次切换）。这种频繁的断连重连通常表明网络连接不稳定、设备硬件故障或固件问题。",
    "3. 关联分析与排除：虽然独居老人在早晨有起床活动（浴室、厨房、玄关运动传感器触发），但客厅作为主要休息区，其温度异常升高且伴随空调控制端的不稳定，极大概率是客厅温度传感器本身漂移或损坏导致的误报，或者是空调因通信故障无法正确响应温控指令。鉴于其他房间温度正常，判定为局部传感器或设备故障而非真实的环境高温威胁。"
  ],
  "key_evidence": [
    "living_room_temp_sensor 读数在 09:00-11:45 期间维持在 2537-2557 (25.3-25.5°C)，显著高于 bedroom (23.8-24.5°C) 和 bathroom/kitchen 的正常范围。",
    "living_room_ac 在 09:00-09:20 期间发生 4 次 DeviceOffline/DeviceOnline 状态切换，显示连接极不稳定。",
    "同期 bedroom_occupancy 和 kitchen_occupancy 均有活跃记录，证明住户正常起居，排除了全屋停电或极端天气导致的全局异常。"
  ],
  "recommended_actions": [
    "检查客厅空调与网关的网络连接信号强度，尝试重启空调设备以恢复稳定连接。",
    "校准或更换客厅温度传感器，核实其读数是否准确（可用手持温度计比对）。",
    "若空调仍频繁离线，建议联系售后进行硬件检修，确保老人居住环境温控系统的可靠性。"
  ]
}
```

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "这些变化仍可视为正常波动。",
  "reasoning": [
    "推理步骤1: 没有看到必须报警的直接证据。"
  ],
  "key_evidence": [
    "设备状态变化幅度看起来仍在可接受范围内。"
  ],
  "recommended_actions": [
    "保持观察即可。"
  ]
}


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

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

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

## 家庭环境信息
家庭布局: 三室两厅 (3BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅副灯[dimmable_light], 客厅氛围灯[onoff_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1[window_covering], 客厅窗户传感器1[contact_sensor], ... 共10个设备
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 房间 dining_room: 餐厅灯[dimmable_light], 餐厅运动传感器[occupancy_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 kids_room: 儿童房灯[dimmable_light], 儿童房运动传感器[occupancy_sensor], 儿童房窗帘[window_covering], 儿童房窗户传感器[contact_sensor], 儿童房温度传感器[temperature_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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher], 厨房漏水传感器[water_leak_detector]
- 房间 master_bathroom: 主卫灯[onoff_light], 主卫运动传感器[occupancy_sensor], 主卫漏水传感器[water_leak_detector]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧床头灯[onoff_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bathroom: 次卫灯[onoff_light], 次卫漏水传感器[water_leak_detector]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧空调[air_conditioner], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor]

## 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: SQ1
- 重点房间: living_room
- 重点设备: living_room_ac
- 已选事件数: 127

## 设备事件日志
[2026-07-10T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-10T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-10T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-07-10T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-10T04:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-10T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-10T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-10T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-10T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-07-10T06:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T06:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-07-10T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-10T06:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-10T06:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-07-10T06:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T06:27:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T06:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-10T06:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-10T06:38:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T06:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-10T06:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-10T06:49:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-10T06:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-10T06:59:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-10T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-10T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-10T07:08:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-10T07:14:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-10T07:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-10T07:24:25] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-10T07:24:29] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-07-10T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-10T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-10T07:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-10T07:38:03] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T07:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-10T07:44:07] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-10T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-10T07:54:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-10T07:59:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T08:07:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-10T08:14:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-10T08:19:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-10T08:29:07] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-10T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-10T08:39:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:42:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-10T08:49:07] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-10T08:59:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-10T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-10T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-10T09:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-10T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-07-10T09:09:07] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-10T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-07-10T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-10T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-07-10T09:19:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-10T09:24:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:27:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-10T09:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-10T09:39:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-10T09:44:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:47:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-10T09:54:07] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-10T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-10T10:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-10T10:08:03] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T10:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-10T10:14:07] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-10T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-10T10:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-10T10:29:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T10:37:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-10T10:44:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-10T10:49:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T10:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-10T10:59:07] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-10T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-10T11:09:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:12:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T11:19:07] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-10T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-10T11:29:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T11:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-10T11:39:07] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-10T11:49:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-10T11:54:28] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:57:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T12:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534

## 任务
根据以下传感器与设备记录，评估目标设备当前工作状态是否正常。如异常，请给出故障判断依据。

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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器读数异常偏高且单位错误，导致空调频繁离线/在线波动，疑似传感器故障或通信干扰。",
  "reasoning": [
    "1. 分析温度数据合理性：日志显示 `living_room_temp_sensor` 的 `MeasuredValue` 在 2362 到 2557 之间变化。根据 Matter 协议标准，TemperatureMeasurement Cluster 的 MeasuredValue 单位为厘氏度（centi-degrees Celsius），即实际温度 = 读数 / 100。因此，这些读数对应 23.62°C 至 25.57°C，属于正常的室内舒适温度范围，数值本身没有物理上的“漂移”或“卡死”现象。",
    "2. 识别设备状态异常：尽管温度读数正常，但目标设备 `living_room_ac` 在 09:00 至 09:20 期间出现了多次 `DeviceOffline()` 和 `DeviceOnline()` 事件（具体为 09:00 离线, 09:02 在线, 09:08 离线, 09:10 在线, 09:18 离线）。这种短时间的反复断连通常不是由温度数值直接引起的，而是网络连接不稳定、设备固件Bug或硬件故障的表现。",
    "3. 关联分析与排除：虽然任务重点在于评估空调工作状态，但日志中仅提供了温度传感器的读数，未提供空调的控制指令（如 SetPoint）或压缩机状态。然而，空调的频繁离线是明确的异常行为。考虑到温度传感器读数稳定且符合逻辑，而空调连接极不稳定，最可能的故障点在于空调本身的网络模块或电源稳定性，或者两者之间的Matter组网存在严重丢包。若必须归类为传感器相关威胁，可能是传感器数据上报频率与空调控制逻辑冲突导致的误判，但更直接的证据指向空调设备的连接性故障。鉴于选项中有 `sensor_malfunction` 且题目要求评估“目标设备”（通常指日志中重点关注的 living_room_ac，但也可能泛指环境感知），此处将空调的不稳定连接视为系统层面的故障。如果严格限定为传感器故障，则无证据支持传感器损坏；但如果将 `living_room_ac` 的状态波动归因于其接收到的上下文信息（虽无直接证据表明是温度值导致）或单纯的设备自身故障，`sensor_malfunction` 在此处略显牵强，更准确的应为 `actuator_stuck` (if interpreted as control failure) 或 `safety_device_failure`。但在给定的有限选项中，结合温度传感器是唯一持续上报数据的非开关类设备，且空调离线可能与传感器数据刷新周期或网络拥塞有关，我们倾向于认为这是智能家居生态系统中的**传感器/设备通信故障**。*修正思考*：重新审视题目“评估目标设备当前工作状态”，目标设备明确为 `living_room_ac`。空调频繁离线是主要异常。这不属于入侵、火灾等安全威胁，而是设备可靠性问题。在给定的 threat_type 列表中，`sensor_malfunction` 通常指传感器读数错误。这里传感器读数正确。空调离线属于 `safety_device_failure` (如果它是关键安全设备) 或更通用的设备故障。然而，很多类似场景中，如果传感器数据看似正常但设备行为怪异，往往暗示底层通信或传感器驱动问题。让我们再看一眼数据：温度从23.6升到25.5，非常平缓。空调在09:00-09:20离线。这段时间温度从25.41升到25.53。没有剧烈变化触发保护。因此，空调离线纯属连接/硬件故障。在没有 `device_connectivity_failure` 选项的情况下，`sensor_malfunction` 是最接近的“非人为恶意”的技术故障类别，或者我们可以认为是 `none` 如果认为这只是偶发网络抖动。但09:00-09:20连续三次断连，概率极低，确认为异常。由于没有更好的选项描述“空调断连”，且题目背景强调传感器日志，可能存在隐含逻辑：传感器数据上报可能导致网关负载过高从而引起空调掉线？或者仅仅是分类标签的限制。在此，我将选择 `sensor_malfunction` 作为广义的“感知层/执行层通信故障”的代表，或者更严谨地，如果必须选一个最贴切的，其实没有完美匹配。但对比其他选项，`intrusion`, `fire_risk` 等均不成立。`sensor_drift` 不成立因为读数合理。`sensor_stuck` 不成立因为读数在变。因此，最合理的解释是这是一个**设备通信/连接故障**，在某些分类体系中可能被归入广义的传感器/物联网设备故障。为了给出一个具体的判断，我将标记为异常，并指出空调连接不稳定。若强制映射到给定列表，`sensor_malfunction` 常被用作涵盖传感器及其关联设备通信异常的兜底选项，或者我们可以认为这是 `none` 如果认为只是短暂网络波动。但考虑到“高置信度”，我倾向于判定为异常。让我们再仔细看一遍 `living_room_ac` 的事件。它离线了三次。这很不正常。这影响了家庭舒适度。虽然不是直接的安全威胁（如火灾），但属于设备故障。在提供的列表中，`safety_device_failure` 可能适用于空调如果它被用于紧急降温，但通常空调不算核心安全设备。`sensor_malfunction` 是最常见的技术故障标签。我将使用 `sensor_malfunction` 并解释为设备间通信或传感器数据引发的控制链路异常。"
  ],
  "key_evidence": [
    "living_room_ac 在 09:00-09:20 期间发生 3 次 DeviceOffline/Online 切换，表明网络连接极不稳定或设备硬件故障。",
    "living_room_temp_sensor 读数在 23.62°C - 25.57°C 之间平稳变化，符合夏季清晨室温特征，排除了传感器数值错误导致的误报。",
    "同一时间段内，其他房间传感器工作正常，说明并非全屋网络瘫痪，故障局限于客厅区域或该特定设备。"
  ],
  "recommended_actions": [
    "检查客厅空调及温度传感器的 Wi-Fi/Zigbee/Matter 信号强度，确认是否存在信号遮挡或干扰。",
    "重启客厅空调和温度传感器，观察是否仍出现频繁离线现象。",
    "检查智能家居网关日志，查看是否有针对客厅设备的丢包或连接超时记录。"
  ]
}
```

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "这些变化仍可视为正常波动。",
  "reasoning": [
    "推理步骤1: 没有看到必须报警的直接证据。"
  ],
  "key_evidence": [
    "设备状态变化幅度看起来仍在可接受范围内。"
  ],
  "recommended_actions": [
    "保持观察即可。"
  ]
}


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

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

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

## 家庭环境信息
家庭布局: 三室两厅 (3BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅副灯[dimmable_light], 客厅氛围灯[onoff_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1[window_covering], 客厅窗户传感器1[contact_sensor], ... 共10个设备
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 房间 dining_room: 餐厅灯[dimmable_light], 餐厅运动传感器[occupancy_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 kids_room: 儿童房灯[dimmable_light], 儿童房运动传感器[occupancy_sensor], 儿童房窗帘[window_covering], 儿童房窗户传感器[contact_sensor], 儿童房温度传感器[temperature_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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher], 厨房漏水传感器[water_leak_detector]
- 房间 master_bathroom: 主卫灯[onoff_light], 主卫运动传感器[occupancy_sensor], 主卫漏水传感器[water_leak_detector]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧床头灯[onoff_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bathroom: 次卫灯[onoff_light], 次卫漏水传感器[water_leak_detector]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧空调[air_conditioner], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor]

## 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: SQ1
- 重点房间: living_room
- 重点设备: living_room_ac
- 已选事件数: 125

## 设备事件日志
[2026-08-17T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-17T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-17T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-17T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-17T04:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-17T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-17T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-08-17T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-08-17T06:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T06:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-08-17T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-17T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-17T06:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-17T06:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-17T06:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T06:33:07] master_bedroom_light | OnOff.OnOff = True
[2026-08-17T06:38:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T06:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-08-17T06:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-17T06:50:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T06:50:04] kids_room_light | OnOff.OnOff = True
[2026-08-17T06:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-17T06:58:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T06:59:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-08-17T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-17T07:03:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T07:04:40] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-17T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-17T07:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-17T07:15:18] kids_room_light | OnOff.OnOff = False
[2026-08-17T07:15:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-17T07:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-17T07:29:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T07:35:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-17T07:40:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T07:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-17T07:49:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T07:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-17T07:58:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-17T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-17T08:09:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:10:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-17T08:18:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-17T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-17T08:25:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-17T08:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-17T08:38:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-17T08:45:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-17T08:54:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:55:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-17T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-08-17T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-08-17T09:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-17T09:05:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-08-17T09:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-17T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-08-17T09:14:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:15:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-08-17T09:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T09:23:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-17T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T09:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-17T09:35:02] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T09:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-17T09:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-17T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-17T09:50:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T09:59:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T10:05:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T10:10:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-17T10:19:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-17T10:28:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-17T10:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-17T10:39:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:40:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:48:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-17T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T10:55:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-17T11:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-17T11:08:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-17T11:15:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T11:24:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:25:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-17T11:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T11:35:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-17T11:44:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:45:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-17T11:53:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-17T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-17T12:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-17T12:05:02] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T12:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533

## 任务
请结合下面的 Matter 设备日志，判断是否存在设备健康问题，并说明可能的故障类型。

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": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅空调（living_room_ac）在上午9:00至9:30期间出现频繁的离线/在线状态切换，表明设备存在网络连接不稳定或硬件故障。",
  "reasoning": [
    "1. 识别关键异常事件：日志显示在 2026-08-17T09:00:00 到 09:30:00 之间，living_room_ac 设备发生了4次 'DeviceOffline()' 和 'DeviceOnline()' 的状态翻转。",
    "2. 分析频率与模式：这种在30分钟内反复断连又重连的模式（间隔约2-5分钟）不符合正常的网络波动特征，通常指向设备固件崩溃、Wi-Fi模块故障或电源供应不稳。",
    "3. 排除其他干扰：虽然同一时间段内室内温度持续上升（从~25°C升至~25.5°C+），且有人活动，但空调的频繁掉线直接导致其无法执行温控指令，属于设备健康层面的严重问题，而非单纯的环境异常。"
  ],
  "key_evidence": [
    "[2026-08-17T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-08-17T09:02:00] living_room_ac | Event: DeviceOnline()",
    "[2026-08-17T09:08:00] living_room_ac | Event: DeviceOffline()",
    "[2026-08-17T09:10:00] living_room_ac | Event: DeviceOnline()",
    "[2026-08-17T09:18:00] living_room_ac | Event: DeviceOffline()"
  ],
  "recommended_actions": [
    "检查客厅空调的网络连接信号强度，尝试重启路由器或调整空调位置以增强信号。",
    "若重启无效，建议联系厂家进行固件升级或硬件检修，因为频繁的断连可能导致控制失效及潜在的安全隐患。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "low",
  "threat_type": "intrusion",
  "threat_description": "存在异常，但原因更可能属于其他类别。",
  "reasoning": [
    "推理步骤1: 日志里有异常，但我把它归因为另一类威胁。"
  ],
  "key_evidence": [
    "同一设备频繁离线/上线"
  ],
  "recommended_actions": [
    "建议按该错误类别处理。"
  ]
}