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: 两室一厅 (2BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[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 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 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 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 master_bedroom: 主卧灯[dimmable_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_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_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: 129

## 设备事件日志
[2026-08-11T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-11T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-11T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-08-11T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-11T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-11T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-08-11T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-11T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-11T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-11T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-11T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-11T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-08-11T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-08-11T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-08-11T06:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-08-11T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-08-11T06:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-11T06:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-11T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-11T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-11T06:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-08-11T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T06:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T06:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-11T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-11T06:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-11T06:46:02] bathroom_light | OnOff.OnOff = True
[2026-08-11T06:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-11T06:53:00] bathroom_light | OnOff.OnOff = False
[2026-08-11T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-11T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-11T07:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-08-11T07:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-11T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-11T07:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-11T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-11T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-11T07:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-11T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-11T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-11T07:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T07:31:11] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T07:31:16] front_door_contact | BooleanState.StateValue = False
[2026-08-11T07:31:24] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-08-11T07:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-11T07:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-11T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-11T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-11T07:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-11T07:51:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T07:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-11T08:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-11T08:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-11T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-11T08:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-11T08:11:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-11T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-11T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-11T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-11T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-11T08:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-11T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T08:31:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T08:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-11T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-11T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-11T08:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-11T08:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-11T08:53:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T08:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-11T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-11T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-11T09:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-08-11T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-08-11T09:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-11T09:06:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-11T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-11T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-11T09:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-11T09:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-11T09:26:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T09:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-11T09:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-11T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-11T09:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-11T09:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-11T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-11T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-11T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-11T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-11T10:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-11T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T10:01:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T10:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-11T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-11T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-11T10:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-11T10:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-11T10:23:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T10:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-11T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-11T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-11T10:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T10:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-11T10:36:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T10:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-11T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-11T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-11T10:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-11T10:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-11T10:56:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-11T11:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-11T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-11T11:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-11T11:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-11T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-11T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-11T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537

## 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。

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "key_evidence": [
    "正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器读数严重偏离物理现实，显示异常高温（23.5°C - 25.5°C），且伴随空调离线事件，表明传感器可能故障或校准失效。",
  "reasoning": [
    "推理步骤 1: 日志显示从凌晨 03:00 到上午 11:25，客厅温度传感器 (living_room_temp_sensor) 的读数持续在 23.5°C 至 25.5°C 之间波动。考虑到这是夏季（8 月）的清晨至上午时段，若无强热源，室内温度通常不会如此之高且持续上升后维持高位。",
    "推理步骤 2: 关键证据在于 09:00 发生的 'living_room_ac | Event: DeviceOffline()' 事件。如果空调正常工作以应对高温，它应该在线运行并降低室温。空调离线导致房间无法降温，但这本身不足以解释为何传感器读数高达 25°C+（除非室外极端炎热，但结合后续数据看更像故障）。",
    "推理步骤 3: 最关键的异常是数值的合理性。Matter 协议中 TemperatureMeasurement.MeasuredValue 通常以 0.01°C 为单位。数值如 2355 代表 23.55°C。然而，即使考虑单位错误（例如误报为毫开尔文或其他），该数值相对于正常室温（约 24-26°C）的‘过热’趋势以及空调离线的关联，强烈暗示传感器硬件故障、校准漂移或被恶意篡改，而非真实环境温度。真实的 25°C 对于有空调的房间来说偏高，且在没有其他设备（如烤箱）开启的情况下，全天维持在 25°C 以上不符合常理。更可能的情况是传感器卡在某个高值区间或零点偏移严重。",
    "推理步骤 4: 虽然入户门有多次进出记录（entrance_occupancy=1, front_door_contact=False），但这些行为模式符合正常家庭作息（上班/上学通勤），并未发现入侵迹象（如深夜开门、门锁被强制解锁等）。因此主要威胁集中在传感器健康上。"
  ],
  "key_evidence": [
    "living_room_temp_sensor 读数在 03:00 至 11:25 期间持续处于 23.5°C - 25.5°C 的高位区间，且呈现非自然的缓慢爬升后平台期特征。",
    "在 09:00 发生 living_room_ac DeviceOffline 事件，若传感器读数准确，此时应触发紧急制冷或报警，但系统似乎未做出相应反应，进一步佐证传感器数据不可信。",
    "多房间温度传感器（厨房、主卧、次卧）在同一时间段也报告了相似的高位温度（24.8°C - 25.5°C），这种跨设备的同步异常极大概率是环境感知系统的系统性故障（如基准校准错误），而非局部热源导致。"
  ],
  "recommended_actions": [
    "立即检查客厅及全屋温度传感器的物理状态，确认是否被遮挡、损坏或受到外部热源干扰。",
    "重置所有受影响的温度传感器，并重新进行 Matter 网络下的校准流程。",
    "暂时手动关闭自动温控逻辑，改用固定模式运行空调，直到传感器读数恢复正常范围（例如 22°C-24°C）。",
    "联系设备制造商或技术支持，排查是否存在固件 Bug 或批量硬件缺陷。"
  ]
}
```


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: 132

## 设备事件日志
[2026-07-04T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-04T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-04T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-04T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-07-04T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-04T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-04T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-04T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-07-04T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-04T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-04T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-04T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-04T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-07-04T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-07-04T06:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T06:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T06:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-04T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-04T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-04T06:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-07-04T06:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-04T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-04T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-04T06:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-04T06:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T06:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-04T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-04T06:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-04T06:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-04T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-04T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-04T06:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-04T07:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-04T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T07:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T07:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T07:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-04T07:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-04T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-04T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-04T07:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-04T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-04T07:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T07:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T07:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-04T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-04T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-04T07:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-04T07:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-04T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-04T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-04T08:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-04T08:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T08:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-04T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-04T08:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-04T08:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-04T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-04T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-04T08:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-04T08:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-04T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T08:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T08:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T08:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-04T08:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-04T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-04T08:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-04T08:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-04T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-04T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-04T09:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T09:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-04T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-04T09:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-04T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-04T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-04T09:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-04T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-04T09:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-04T09:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T09:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-04T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-04T09:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-04T09:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-04T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-04T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-04T10:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-04T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T10:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T10:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T10:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-04T10:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-04T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-04T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-04T10:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-04T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-04T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-04T10:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T10:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T10:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-04T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-04T10:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-04T10:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-04T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-04T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-04T11:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-04T11:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T11:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-04T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-04T11:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-04T11:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-04T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-04T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-04T11:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-04T11:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-04T11:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T11:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T11:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-04T11:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-04T11:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-04T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-04T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-04T11:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-04T11:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540

## 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。

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "key_evidence": [
    "正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器读数严重偏离物理现实，且与空调离线事件存在强相关性，表明传感器可能已损坏或固件故障。",
  "reasoning": [
    "推理步骤 1: 数据单位分析。日志中的温度值（如 2365, 2478, 2556）远超正常室温范围（通常 0-50°C）。结合 Matter 协议常见实现，这些数值极有可能是以 0.01°C 为单位的原始整数（即实际温度为 23.65°C -> 2365），或者是传感器发生了严重的数值漂移/溢出错误。",
    "推理步骤 2: 异常模式识别。从 03:00 到 09:00，温度读数呈现持续、线性的快速上升趋势（从 2365 升至 2556），这种在无人居住（Occupancy=0）且无热源开启的情况下发生的‘自加热’现象不符合热力学规律，排除了真实火灾风险，指向设备自身故障。",
    "推理步骤 3: 关联事件分析。在 09:00:00 出现 `living_room_ac | DeviceOffline()` 事件，随后在 09:02:00 恢复在线。如果空调正常工作，它应能调节室温。然而，在空调离线期间及之后，温度读数依然维持高位并波动，且未显示出因空调重启而导致的温度骤降或稳定趋势，进一步证实了该传感器无法正确反映环境温度，属于硬件或固件层面的 malfunction。"
  ],
  "key_evidence": [
    "温度读数在无人状态下从 23.65°C (推测) 线性上升至 25.56°C (推测)，且变化速率过快，不符合自然热传递规律。",
    "在 09:00 发生空调离线事件后，温度传感器并未恢复正常逻辑（如检测到高温自动报警或随环境降温），而是继续输出异常高值。",
    "同一时间段内，厨房和儿童房传感器也报告了类似的超高数值（~25xx），暗示可能是全屋温度采集系统配置错误或批量固件 bug，但针对客厅主传感器的个体行为仍判定为 malfunction。"
  ],
  "recommended_actions": [
    "立即检查客厅温度传感器的物理状态，确认是否被遮挡、进水或受到外部干扰。",
    "联系设备制造商或技术支持，更新客厅温度传感器的固件，或重置该设备。",
    "暂时忽略基于该传感器数据的自动化场景（如恒温控制），改用其他房间的温度传感器作为参考，直到故障排除。"
  ]
}
```


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: 120

## 设备事件日志
[2026-07-11T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-11T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-11T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-11T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-11T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-11T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-11T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-11T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-11T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-11T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-11T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-11T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-07-11T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-11T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-07-11T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-11T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-11T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-11T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-11T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-11T06:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-11T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-11T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-11T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-11T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-11T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-11T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-11T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-11T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-11T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-11T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-11T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-11T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-11T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-11T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-11T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-11T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-11T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-11T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-11T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-11T08:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-11T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-11T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-11T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-11T08:55:00] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-11T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-11T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-11T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-11T09:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-11T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-11T09:15:00] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:18:05] kitchen_light | OnOff.OnOff = True
[2026-07-11T09:19:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-11T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-11T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-11T09:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-11T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-11T09:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-11T09:48:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-07-11T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-11T09:51:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T09:51:05] living_room_ac | OnOff.OnOff = True
[2026-07-11T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-11T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-11T10:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-11T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-11T10:11:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-11T10:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-11T10:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-11T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-11T10:31:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T10:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-11T10:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-11T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-11T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-11T10:51:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T10:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-11T10:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2603
[2026-07-11T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-11T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-11T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2799
[2026-07-11T11:19:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2866
[2026-07-11T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-11T11:26:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2927
[2026-07-11T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-11T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-11T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-11T11:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-11T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2805
[2026-07-11T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-11T12:01:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-11T12:21:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-11T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-11T12:51:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-11T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-11T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-11T13:21:00] living_room_occupancy | OccupancySensing.Occupancy = 1

## 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。

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "key_evidence": [
    "正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器出现严重数据异常（漂移/故障），读数在短时间内从正常范围飙升至近 30°C (2927 mK)，随后又剧烈波动，且伴随设备离线重连现象，无法反映真实环境温度。",
  "reasoning": [
    "推理步骤 1: 分析时间线发现，在 2026-07-11T11:00:00 至 11:40:00 期间，厨房温度传感器 (kitchen_temp_sensor) 的读数呈现非物理可能的剧烈上升趋势：从 25.44°C (2544 mK) 迅速攀升至 29.27°C (2927 mK)。",
    "推理步骤 2: 对比同一时间段内的其他环境数据，客厅和卧室的温度均保持在 24°C-25°C 左右的合理范围内，且住户活动频繁（ occupancy=1），排除了因大量人员聚集导致局部过热或火灾风险的可能性。",
    "推理步骤 3: 日志显示该传感器在 11:55:00 曾短暂报告 None 值后恢复为 28.05°C，结合之前出现的 DeviceOffline/Online 事件（发生在 09:00），表明该传感器存在严重的硬件故障、校准失效或通信干扰导致的‘传感器漂移’（Sensor Drift）或‘传感器故障’（Sensor Malfunction）。",
    "推理步骤 4: 尽管当前读数未触发烟雾报警阈值，但如此剧烈的数值跳变已失去监测意义，若依赖此数据进行自动化控制（如联动空调或燃气切断），将导致系统误判或失控，属于高风险的设备健康异常。"
  ],
  "key_evidence": [
    "2026-07-11T11:15:00 厨房温度突增至 29.27°C (2927 mK)，而同期客厅仅为 25.25°C。",
    "2026-07-11T11:55:00 传感器先报 None 后报 28.05°C，显示数据不稳定。",
    "此前 (09:00) 发生过 living_room_ac 设备上下线事件，暗示网络或设备集群可能存在不稳定性。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的物理状态，确认是否被遮挡、损坏或电池电量不足。",
    "重置厨房温度传感器并重新校准，观察读数是否恢复正常。",
    "在修复前，暂时禁用基于该传感器的自动化场景（如高温自动关火），改用人工监控或备用传感器逻辑。",
    "检查 Matter 网关与厨房设备的连接质量，排除网络干扰导致的乱码数据。"
  ]
}
```


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: 130

## 设备事件日志
[2026-07-20T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-20T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-20T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-20T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-20T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-20T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-20T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-20T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-20T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-20T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-20T04:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-20T04:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-20T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-20T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-20T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-20T05:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-07-20T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T05:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-20T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-20T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-20T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-20T06:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-20T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-20T06:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-20T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-07-20T06:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-20T06:19:06] bedroom_light | OnOff.OnOff = True
[2026-07-20T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-20T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-20T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-20T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-20T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-20T06:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T06:33:09] bathroom_light | OnOff.OnOff = True
[2026-07-20T06:38:09] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T06:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-20T06:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-20T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-20T06:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-20T06:58:09] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T07:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-20T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-20T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-20T07:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-20T07:11:00] bathroom_light | OnOff.OnOff = False
[2026-07-20T07:11:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T07:14:05] bedroom_light | OnOff.OnOff = False
[2026-07-20T07:14:23] front_door_lock | DoorLock.LockState = 2
[2026-07-20T07:14:29] front_door_contact | BooleanState.StateValue = True
[2026-07-20T07:14:30] front_door_lock | DoorLock.LockState = 1
[2026-07-20T07:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-20T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-20T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-20T07:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-20T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-20T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-20T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-20T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-20T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-20T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-20T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-20T07:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-20T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-20T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-20T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-20T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-20T08:05:31] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-20T08:11:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-20T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-20T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-20T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-20T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-20T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-20T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-20T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-20T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-20T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-20T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-20T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-20T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-20T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-20T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-20T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-20T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-20T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-20T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-20T09:05:31] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-20T09:11:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-20T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-20T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-20T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-20T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-20T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-20T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-20T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-20T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-20T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-20T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-20T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-20T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-20T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-20T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-20T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-20T10:05:31] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T10:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-20T10:11:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-20T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-20T10:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-20T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-20T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-20T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-20T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-20T10:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-20T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-20T10:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-20T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-20T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-20T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548

## 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。

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "key_evidence": [
    "正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器读数严重偏离物理现实，显示异常高温（约 240°C-255°C），且与空调离线事件时间重合，表明传感器可能已损坏或校准失效。",
  "reasoning": [
    "推理步骤 1: 日志显示从凌晨 3 点到上午 10 点，living_room_temp_sensor 的 MeasuredValue 持续在 2352 到 2559 之间波动。根据 Matter 协议及常见智能家居设备标准，该数值通常代表摄氏度乘以 10（即 23.52°C - 25.59°C）。然而，若将其直接解读为原始整数或存在单位转换错误导致数值被放大 100 倍，则实际读数为 235°C 至 255°C，这在家庭环境中是绝对不可能的（远超水的沸点）。",
    "推理步骤 2: 观察发现，当 living_room_ac（空调）在 09:00 发生 DeviceOffline() 并在 09:02 恢复时，温度读数并未如预期般因空调关闭而开始上升，反而维持在极高的‘异常’水平。如果传感器正常工作，空调关闭后室温应缓慢回升；但此处的高数值更像是传感器故障导致的固定高值漂移，或者是固件在处理温度数据时发生了严重的溢出/计算错误。",
    "推理步骤 3: 对比其他房间数据，bedroom_temp_sensor 和 kitchen_temp_sensor 的读数相对合理（卧室约 23.8°C-24.5°C，厨房约 24.6°C-25.5°C），说明环境本身没有达到 250°C 的程度。这种跨设备的巨大差异进一步证实了 living_room_temp_sensor 存在独立的硬件故障或软件逻辑错误，属于典型的 sensor_malfunction。"
  ],
  "key_evidence": [
    "living_room_temp_sensor 读数长期维持在 2352-2559 区间，换算后相当于 235°C-255°C，远超家庭安全阈值。",
    "在空调 (living_room_ac) 于 09:00 短暂离线的关键时间点，异常高温读数未出现符合物理规律的动态变化，暗示读数非真实环境温度。",
    "同一时间段内，卧室和厨房的温度传感器读数正常（~24°C），排除了全屋过热的可能性，锁定故障源为特定传感器。"
  ],
  "recommended_actions": [
    "立即检查并更换客厅温度传感器硬件，或重置该设备以排除临时性固件错误。",
    "暂时禁用基于该传感器的自动化场景（如高温自动开窗或报警），防止误触发。",
    "联系设备制造商获取固件更新或技术支持，确认是否存在已知的数据处理 Bug。"
  ]
}
```


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: 128

## 设备事件日志
[2026-08-24T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-24T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-08-24T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-08-24T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-24T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-24T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-24T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-24T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-24T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-08-24T04:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-24T04:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-24T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-24T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-24T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-24T05:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-24T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T05:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-08-24T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-08-24T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-08-24T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-08-24T06:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-24T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-08-24T06:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-24T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-24T06:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-24T06:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-24T06:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T06:24:16] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-08-24T06:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-08-24T06:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-08-24T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T06:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-24T06:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-24T06:40:07] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-24T06:41:33] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T06:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-08-24T06:47:06] kitchen_light | OnOff.OnOff = True
[2026-08-24T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-24T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-08-24T06:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-24T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-24T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-24T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-24T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-24T07:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-24T07:11:33] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T07:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-24T07:18:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T07:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-08-24T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-24T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-24T07:26:06] bedroom_light | OnOff.OnOff = False
[2026-08-24T07:26:23] front_door_lock | DoorLock.LockState = 2
[2026-08-24T07:26:30] front_door_contact | BooleanState.StateValue = True
[2026-08-24T07:26:31] front_door_lock | DoorLock.LockState = 1
[2026-08-24T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-24T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-24T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-24T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-24T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-24T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-24T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-24T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-24T07:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-24T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-24T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-24T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-24T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-24T08:11:33] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-24T08:18:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-08-24T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-24T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-24T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-24T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-24T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-24T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-24T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-24T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-24T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-24T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-24T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-24T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-24T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-24T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-08-24T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-08-24T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-24T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-24T09:11:33] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-24T09:18:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-24T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-24T09:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-24T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-24T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-24T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-24T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-24T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-24T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-24T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-24T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-24T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-24T10:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-24T10:11:33] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-24T10:18:34] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T10:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-08-24T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-24T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-24T10:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-24T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-24T10:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-24T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-24T10:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-24T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-24T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-24T10:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-24T10:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-24T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-24T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544

## 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。

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "key_evidence": [
    "正常样本是一次性短暂重连；异常样本在短时间内反复抖动。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "客厅空调离线导致温控失效，叠加厨房高温及长时间无人值守，存在极高的火灾风险。",
  "reasoning": [
    "推理步骤 1: 温度异常升高。从凌晨 03:00 到上午 09:00，客厅温度传感器读数从 23.7°C (2370mK) 持续攀升至 25.6°C (2560mK)，且厨房温度也同步维持在 25°C 以上的高位，表明室内热量积聚严重。",
    "推理步骤 2: 关键设备故障。在温度达到峰值前夕（09:00），日志明确记录 `living_room_ac` 触发 `DeviceOffline()` 事件，随后虽短暂恢复但处于不稳定状态。作为主要制冷设备，其离线直接切断了降温手段。",
    "推理步骤 3: 环境风险累积。此时段内（06:40-07:26）卫生间和卧室有人员活动迹象，但随后长时间无人在客厅或厨房（Occupancy=0），而厨房温度持续高位（>25°C）。在高温环境下，若空调无法正常工作，极易引发电器过热、线路老化加速甚至烹饪设备意外起火，符合火灾风险特征。"
  ],
  "key_evidence": [
    "2026-08-24T09:00:00 living_room_ac | Event: DeviceOffline()",
    "03:00-09:00 期间客厅温度持续上升约 1.9°C，厨房温度稳定在 25°C 以上",
    "07:26 入户门开启后，室内长时间无人（Occupancy=0），缺乏人工干预降温"
  ],
  "recommended_actions": [
    "立即检查客厅空调物理状态，确认是否因过热保护或硬件故障导致停机，并尝试重启或联系维修。",
    "检查厨房区域是否有烟雾报警器误报或真实火情，确保通风良好。",
    "建议暂时关闭厨房灶具等热源，直至空调恢复正常工作。"
  ]
}
```


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

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

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

## 家庭环境信息
家庭布局: 两室一厅 (2BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[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 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 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 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], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 master_bedroom: 主卧灯[dimmable_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_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_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
[2026-08-17T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-17T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-17T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-08-17T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-17T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-08-17T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-17T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-08-17T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-17T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-17T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-17T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-17T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-08-17T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-08-17T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-17T06:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-17T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-08-17T06:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-08-17T06:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-17T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-08-17T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-17T06:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-17T06:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-17T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T06:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T06:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-17T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-17T06:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-17T06:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-17T06:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-17T06:53:07] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T06:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-17T06:59:36] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T07:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-17T07:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-08-17T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-17T07:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-17T07:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-17T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-17T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-17T07:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-17T07:29:17] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T07:29:22] front_door_contact | BooleanState.StateValue = False
[2026-08-17T07:29:23] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-08-17T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-17T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-17T07:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T07:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-17T07:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-17T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-17T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-17T07:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-17T07:54:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T07:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-17T07:59:36] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T08:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-17T08:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-17T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-17T08:14:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-17T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-17T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-17T08:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T08:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-17T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T08:34:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T08:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-17T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-17T08:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-17T08:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-17T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-17T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-17T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-17T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-17T09:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[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 = 2543
[2026-08-17T09:09:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-17T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-17T09:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T09:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-17T09:29:36] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T09:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T09:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-17T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-17T09:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-17T09:44:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T09:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-17T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-17T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-17T09:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-17T10:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-17T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T10:04:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-17T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-17T10:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-17T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-17T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-17T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-17T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-17T10:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T10:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-17T10:39:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T10:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-17T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-17T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-17T10:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T10:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-17T10:59:36] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T11:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-17T11:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-17T11:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-17T11:14:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-17T11:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-17T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-17T11:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536

## 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": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "客厅空调短暂离线后恢复在线，属于正常的网络波动或设备重启，未检测到安全威胁。",
  "reasoning": [
    "1. 分析目标设备状态：日志显示在 09:00:00 时 `living_room_ac` 触发 `DeviceOffline()` 事件，随后在 09:02:00 触发 `DeviceOnline()` 事件。这表明空调经历了约 2 分钟的短暂断连。",
    "2. 评估异常性质：这种短时间的离线和重新上线通常由 Wi-Fi 信号波动、路由器自动重启、或空调内部模块自检/重启引起，属于常见的物联网设备正常行为，而非被攻击或硬件永久损坏的迹象。",
    "3. 结合环境上下文验证：在空调离线期间（09:00-09:02），客厅温度传感器读数从 2542 (25.42°C) 变为 2550 (25.50°C)，厨房等其他区域温度也呈自然上升趋势，没有发生剧烈的温度突变或火灾/泄漏迹象。同时，入户门传感器在 09:09 才再次检测到有人活动，说明此时段家中可能无人或处于非活跃状态，不存在因空调故障导致的直接人身安全风险。",
    "4. 结论：鉴于设备迅速恢复在线且无伴随的紧急报警（如烟雾、漏水）或入侵迹象，判定为正常网络/设备波动，无需安全干预。"
  ],
  "key_evidence": [
    "[2026-08-17T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-08-17T09:02:00] living_room_ac | Event: DeviceOnline()"
  ],
  "recommended_actions": [
    "无需立即采取安全措施。",
    "若该现象频繁发生，建议检查客厅 Wi-Fi 信号强度或重启路由器以优化网络连接稳定性。"
  ]
}
```

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅空调设备离线且温度传感器读数异常偏高，疑似传感器故障或数据漂移导致误报高温。",
  "reasoning": [
    "推理步骤 1: 日志显示在 09:00:00 时，living_room_ac 报告 DeviceOffline 事件，随后在 09:02:00 恢复在线，表明该设备存在短暂的通信中断或重启，这本身可能是正常波动，但也可能是故障前兆。",
    "推理步骤 2: 关键异常在于温度数据。从 03:00 到 08:55，客厅温度传感器 (living_room_temp_sensor) 的读数从 23.52°C (2352/100) 持续线性上升至 25.39°C (2539/100)。虽然夏季清晨升温符合物理规律，但升温速率过快（约 1.8°C/小时），且数值始终处于较高水平。",
    "推理步骤 3: 结合设备状态分析，当空调在 09:00 离线期间及之后，如果空调本应开启制冷，室内温度理应下降或保持稳定。然而，日志中温度并未因空调离线而飙升（因为之前一直在升），反而在空调恢复后温度依然维持在 25°C 以上的高位。更可疑的是，其他房间（如厨房、主卧）的温度也同步呈现类似的缓慢上升趋势，这种全屋同步的‘异常’升温模式，极大概率不是真实环境温度变化，而是多个温度传感器同时出现数据漂移（Drift）或校准错误（Malfunction），或者系统时间/单位配置错误（例如将摄氏度误读为开尔文或其他比例，尽管 2352 对应 23.52 看起来像除以 100，但趋势过于平滑且缺乏环境扰动）。考虑到 Matter 协议下传感器可能存在的固件 bug 或校准失效，判定为 sensor_malfunction 风险最高。",
    "推理步骤 4: 入户门有多次人员进出记录（entrance_occupancy=1, front_door_contact=False），说明住户活动正常，排除了入侵威胁；无烟雾报警触发，排除火灾风险。核心问题集中在温度数据的可信度上。"
  ],
  "key_evidence": [
    "2026-08-17T09:00:00 living_room_ac | Event: DeviceOffline() 随后短暂恢复",
    "2026-08-17T03:00:00 - 2026-08-17T08:55:00 living_room_temp_sensor 读数从 2352 持续单调上升至 2539，升温速率异常平稳且快速",
    "多房间温度传感器（厨房、主卧、次卧）在同一时间段内表现出高度相似的异常升温曲线，暗示系统性传感器故障而非真实环境变化"
  ],
  "recommended_actions": [
    "立即检查并重新校准所有房间的温度传感器，确认是否因固件更新或电池电量不足导致读数漂移。",
    "手动测量客厅实际室温，对比传感器读数以验证故障假设。",
    "暂时忽略基于当前温度数据的自动化逻辑（如自动开窗或启动风扇），直到传感器数据恢复正常范围。",
    "检查空调设备日志，确认 09:00 的离线是否为网络干扰还是硬件故障，必要时重置空调设备。"
  ]
}
```