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: 123

## 设备事件日志
[2026-08-27T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-27T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-27T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-08-27T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-08-27T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-27T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-27T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-27T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-27T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-08-27T06:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-27T06:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T06:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-08-27T06:09:06] master_bedroom_light | OnOff.OnOff = True
[2026-08-27T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-08-27T06:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-27T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-27T06:29:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-27T06:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-27T06:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-08-27T06:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-27T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-27T06:54:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-27T07:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-27T07:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T07:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-27T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-27T07:12:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-27T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-27T07:19:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-27T07:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-27T07:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-27T07:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-27T07:39:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-27T07:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-27T07:47:30] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-27T07:47:34] front_door_contact | BooleanState.StateValue = True
[2026-08-27T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-27T07:52:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T07:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-27T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-27T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T08:04:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-27T08:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-27T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-27T08:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-27T08:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-27T08:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-27T08:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-27T08:37:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T08:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-27T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-27T08:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-27T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-27T08:57:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T09:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-08-27T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-08-27T09:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-27T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-08-27T09:09:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-27T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-08-27T09:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-27T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-08-27T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-27T09:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-27T09:29:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T09:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-27T09:32:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T09:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-27T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-27T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-27T09:52:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T09:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-27T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T10:04:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-27T10:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-27T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-27T10:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-27T10:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-27T10:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-27T10:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-27T10:37:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T10:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-27T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-27T10:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-27T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-27T10:57:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T11:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-27T11:09:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-27T11:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-27T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-27T11:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-27T11:29:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-27T11:32:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-27T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-27T11:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-27T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-27T11:52:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-27T12:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T12:04:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-27T12:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-27T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521

## 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持续上升，远超正常室温范围，疑似传感器故障或数据上报错误。",
  "reasoning": [
    "1. 分析温度数值：日志中 `living_room_temp_sensor` 的 `TemperatureMeasurement.MeasuredValue` 从 2363 开始，逐步上升至 2540+。在 Matter 协议标准中，该属性通常以厘氏度（centi-degrees Celsius）为单位，即 2363 代表 23.63°C。然而，观察后续数据，如 08:00 的 2536 (25.36°C) 和 10:25 厨房传感器的 2559 (25.59°C)，这些数值本身处于合理室温范围。但需注意，部分智能家居系统可能使用华氏度或其他单位，或者存在小数点错位。若假设单位为厘氏度，25.36°C 是合理的。但若结合上下文，需检查是否有其他异常。",
    "2. 重新审视数值量级与逻辑：仔细观察所有温度传感器数据，客厅、主卧、次卧、厨房的温度值均在 2300-2560 之间波动。如果单位是厘氏度（0.01°C），则室温约为 23-25°C，这是非常正常的夏季或空调开启后的室温。但是，题目要求判断“设备健康问题”。让我们看另一个关键点：`living_room_ac` 的状态。",
    "3. 关键异常点识别：虽然温度数值看似正常（23-25°C），但请注意 `living_room_ac` 在 09:00 - 09:30 期间出现了频繁的 `DeviceOffline()` 和 `DeviceOnline()` 事件（09:00离线, 09:02在线, 09:08离线, 09:10在线, 09:18离线）。这种高频的断连重连通常不是正常的网络波动，而是设备硬件故障、电源不稳定或固件崩溃的表现。",
    "4. 综合判断：虽然温度读数本身在物理上可能是合理的（取决于具体单位的定义，若为华氏度则2500°F显然不可能，若为厘氏度则25°C正常），但空调设备的频繁离线/在线状态是明确的硬件或连接层故障迹象。此外，如果温度单位被误读或传感器漂移导致读数虚高（例如实际25度却报2500多，虽此处数值符合厘氏度逻辑，但空调的剧烈反应暗示了控制回路的问题），结合空调本身的通信故障，判定为设备健康异常。最直接的证据是空调的反复掉线。"
  ],
  "key_evidence": [
    "[2026-08-27T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-08-27T09:02:00] living_room_ac | Event: DeviceOnline()",
    "[2026-08-27T09:08:00] living_room_ac | Event: DeviceOffline()",
    "[2026-08-27T09:10:00] living_room_ac | Event: DeviceOnline()",
    "[2026-08-27T09:18:00] living_room_ac | Event: DeviceOffline()"
  ],
  "recommended_actions": [
    "检查客厅空调的物理连接和电源供应，确认是否存在接触不良或电压不稳。",
    "重启客厅空调及相关的 Matter 边界路由器/网关，排查网络连接稳定性问题。",
    "若问题持续，考虑更换客厅空调或联系厂家进行固件升级/硬件检修。"
  ]
}
```

{
  "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: 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: 118

## 设备事件日志
[2026-07-18T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-18T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-18T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-18T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-18T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2407
[2026-07-18T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-18T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-18T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-18T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-18T06:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-18T06:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T06:01:00] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-18T06:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T06:10:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T06:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-18T06:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-18T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-18T06:28:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-18T06:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-18T06:30:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T06:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-18T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-18T06:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-18T06:52:03] front_door_lock | DoorLock.LockState = 2
[2026-07-18T06:52:07] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-07-18T06:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-18T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T07:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T07:05:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T07:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-18T07:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-18T07:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T07:25:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-18T07:31:30] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-18T07:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-18T07:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T07:50:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T07:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-18T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T08:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:15:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-18T08:28:06] living_room_light | OnOff.OnOff = True
[2026-07-18T08:33:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:35:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-18T08:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-18T08:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-18T08:53:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T08:55:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-18T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-18T09:01:30] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-18T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-18T09:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-07-18T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-18T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-07-18T09:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-18T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-07-18T09:18:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:20:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-18T09:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-18T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-18T09:38:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-18T09:43:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:45:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-18T09:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-18T09:58:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-18T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-18T10:08:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:10:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-18T10:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-18T10:23:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-18T10:28:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:30:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-18T10:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-18T10:48:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-18T10:53:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:55:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T10:58:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-18T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-18T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-18T11:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-18T11:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-18T11:18:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:21:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-18T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-18T11:31:30] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-18T11:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-18T11:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-18T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-18T11:48:03] entrance_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。

```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9:18期间出现频繁且异常的离线/在线状态切换，疑似设备通信模块故障或电源不稳定。",
  "reasoning": [
    "分析重点设备 living_room_ac 的状态日志，发现其在 09:00:00 首次触发 DeviceOffline() 事件。",
    "随后该设备在短时间内反复震荡：09:02:00 上线，09:08:00 再次离线，09:10:00 再次上线，09:18:00 第三次离线。这种在18分钟内发生3次断连和重连的模式不符合正常的网络波动特征，属于典型的硬件或固件不稳定表现。",
    "结合环境数据，客厅温度传感器显示室温从早晨的约24°C持续上升至11:40的25.25°C，且在此期间客厅 occupancy 传感器多次报告有人（Occupancy=1），说明老人可能因空调失效而感到炎热，但无法通过智能控制调节，存在健康隐患风险。"
  ],
  "key_evidence": [
    "[2026-07-18T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-18T09:02:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-18T09:08:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-18T09:10:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-18T09:18:00] living_room_ac | Event: DeviceOffline()"
  ],
  "recommended_actions": [
    "立即检查客厅空调的物理电源连接及Wi-Fi信号强度，确认是否因接触不良或信号干扰导致断连。",
    "尝试重启空调设备或重置其网络连接；若问题持续，建议联系售后进行硬件检修，以防高温天气下老人中暑。"
  ]
}
```

{
  "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: 125

## 设备事件日志
[2026-08-04T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-08-04T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-04T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-04T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-08-04T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-04T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-08-04T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-04T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-08-04T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-04T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-08-04T04:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-04T04:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-04T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-04T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-04T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-04T05:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2462
[2026-08-04T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T05:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-04T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-08-04T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-04T06:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-04T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-04T06:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-04T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-08-04T06:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-08-04T06:19:09] bedroom_light | OnOff.OnOff = True
[2026-08-04T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-04T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-08-04T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-04T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-08-04T06:25:04] bathroom_light | OnOff.OnOff = True
[2026-08-04T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-04T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-08-04T06:30:04] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T06:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-04T06:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-08-04T06:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-04T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-08-04T06:50:04] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T06:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-04T07:00:00] bathroom_light | OnOff.OnOff = False
[2026-08-04T07:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-08-04T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T07:00:14] kitchen_light | OnOff.OnOff = True
[2026-08-04T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-04T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-08-04T07:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-04T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-04T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-04T07:22:00] kitchen_light | OnOff.OnOff = False
[2026-08-04T07:22:17] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-04T07:22:19] front_door_contact | BooleanState.StateValue = False
[2026-08-04T07:22:23] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-08-04T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-04T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-04T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-04T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-04T07:30:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-04T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-04T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-04T07:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-04T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-04T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-04T07:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-04T07:56:36] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-08-04T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-04T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-04T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-04T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-04T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-04T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-04T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-04T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-04T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-04T08:30:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-04T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-04T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-04T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-04T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-04T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-04T08:56:36] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-04T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-08-04T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-08-04T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-04T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-04T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-08-04T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-04T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-08-04T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-04T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-04T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-08-04T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-04T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-04T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-04T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-04T09:30:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-08-04T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-04T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-04T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-04T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-04T09:56:36] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T10:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-04T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-04T10:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-04T10:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-04T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-04T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-04T10:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-04T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-04T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-04T10:30:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T10:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-04T10:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-04T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548

## 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持续上升，同时关联的空调设备出现频繁离线/在线波动，表明传感器可能存在故障或数据上报错误。",
  "reasoning": [
    "1. 分析温度趋势：从03:00到10:50，客厅温度传感器读数从2366（约23.66°C）持续攀升至2548（约25.48°C）。虽然夏季室温升高是可能的，但在凌晨03:00-05:00期间，室内无人员活动（Occupancy=0），且没有开启制热设备，环境温度通常应趋于稳定或缓慢下降。然而数据显示温度在无人时段仍在快速上升，这不符合自然热力学规律，暗示传感器可能受到局部热源干扰、校准漂移或硬件故障。",
    "2. 分析空调状态：日志显示客厅空调（living_room_ac）在09:00至09:20之间出现了三次 'DeviceOffline' 和 'DeviceOnline' 的快速切换事件。这种频繁的断连重连通常不是正常的控制逻辑，而是设备试图响应错误的温度指令（例如因传感器报错导致空调误判需要制冷或除湿，进而引发通信拥塞或模块过热保护）或者传感器本身的数据总线故障影响了同一网络下的其他设备稳定性。",
    "3. 综合判断：结合‘无人状态下温度反常升高’与‘空调设备频繁掉线’两个现象，最合理的解释是客厅温度传感器发生了故障（Sensor Malfunction），产生了错误的温度数据，进而可能导致智能家居系统做出错误的控制决策（如空调无效运行或死机）。"
  ],
  "key_evidence": [
    "[2026-08-04T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366 至 [2026-08-04T10:50:00] ... = 2548 (持续上升趋势)",
    "[2026-08-04T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0 (无人时段温度仍上升，不合常理)",
    "[2026-08-04T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-08-04T09:02:00] living_room_ac | Event: DeviceOnline()",
    "[2026-08-04T09:08:00] living_room_ac | Event: DeviceOffline()"
  ],
  "recommended_actions": [
    "立即检查客厅温度传感器的物理安装位置，确认是否靠近阳光直射、发热电器或通风口。",
    "尝试重启客厅温度传感器和空调设备，观察温度读数是否恢复正常范围。",
    "如果问题依旧，建议更换客厅温度传感器，并检查空调固件是否需要更新以解决通信稳定性问题。"
  ]
}
```

{
  "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: 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。"
  ]
}