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: 126

## 设备事件日志
[2026-07-16T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-16T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-16T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2402
[2026-07-16T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-07-16T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-16T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-16T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-16T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-16T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-16T06:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-16T06:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-16T06:05:05] master_bedroom_light | OnOff.OnOff = True
[2026-07-16T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-16T06:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-16T06:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-16T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-16T06:25:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T06:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-16T06:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T06:34:03] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-16T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-16T06:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-07-16T06:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-16T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-16T06:50:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-16T07:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-16T07:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T07:04:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-07-16T07:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-16T07:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-16T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-16T07:15:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-16T07:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-16T07:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-16T07:35:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-16T07:43:28] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-16T07:43:33] front_door_contact | BooleanState.StateValue = True
[2026-07-16T07:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-16T07:48:31] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-16T07:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-16T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-16T08:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T08:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-16T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-16T08:10:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-16T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-16T08:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-16T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-16T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T08:33:31] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-16T08:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-16T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-16T08:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-16T08:53:31] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-16T09:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-16T09:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-16T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-16T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-16T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-07-16T09:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-16T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-07-16T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-16T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-07-16T09:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-16T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-16T09:25:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-16T09:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T09:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-16T09:38:31] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-16T09:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-16T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-16T09:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-16T09:58:31] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-16T10:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T10:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-16T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-16T10:10:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-16T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-16T10:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-16T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-16T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T10:33:31] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-16T10:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-16T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-16T10:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-16T10:53:31] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-16T11:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-16T11:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-16T11:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-16T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-16T11:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-16T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-16T11:25:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T11:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-16T11:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T11:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-16T11:38:31] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-16T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-16T11:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-16T11:58:31] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T12:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-16T12:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T12:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-16T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-16T12:10:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T12:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-16T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513

## 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，疑似传感器故障或安装位置不当导致测量失真。",
  "reasoning": [
    "1. 分析温度数据趋势：日志显示从 03:00 到 06:25，客厅温度从 ~23.7°C 缓慢上升至 ~24.8°C，符合夜间至清晨的自然升温规律。但在 06:30 之后，温度读数出现非线性的剧烈跳跃（如 07:15 为 25.17°C，07:50 为 25.34°C，08:30 为 25.44°C），且在短时间内（09:00-10:30）在 25.39°C - 25.54°C 之间高频波动。",
    "2. 对比其他设备状态：同一时间段内，主卧、次卧和厨房的温度传感器读数相对稳定（维持在 25.0°C - 25.5°C 左右），没有表现出与客厅相同的剧烈波动模式。这表明环境整体温度并未发生如此剧烈的局部变化。",
    "3. 关联空调行为：客厅空调 (living_room_ac) 在 09:00 - 09:20 期间频繁出现 DeviceOffline/DeviceOnline 事件，这通常意味着空调因检测到温度达到设定值而停机，或因通信问题重启。结合客厅温度读数持续处于高位（>25.3°C）且波动，极有可能是因为传感器读数错误地高估了室温，导致空调控制逻辑混乱（误判需要制冷或已制冷完毕）。",
    "4. 排除人为因素：虽然早晨有人活动（玄关运动传感器多次触发），但客厅 occupancy 传感器在 08:30 和 10:30 显示为 0，说明此时客厅无人。在无人的情况下，室内温度不应出现如此快速且不稳定的波动，进一步指向传感器硬件故障或校准失效。"
  ],
  "key_evidence": [
    "[2026-07-16T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517",
    "[2026-07-16T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544",
    "[2026-07-16T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-16T09:08:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-16T09:18:00] living_room_ac | Event: DeviceOffline()"
  ],
  "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、灯具或空调出风口）。",
    "尝试重置或更换客厅温度传感器，以验证读数是否恢复正常稳定。",
    "监控客厅空调的运行日志，确认温度读数修正后空调是否能正常维持舒适温度。"
  ]
}
```

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


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

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

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

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

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ1
- 重点房间: living_room
- 重点设备: living_room_ac
- 已选事件数: 132

## 设备事件日志
[2026-07-19T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-19T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-19T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-19T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-19T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-19T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-19T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-19T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-19T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-19T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-19T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-07-19T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-07-19T06:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T06:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T06:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-19T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-19T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-19T06:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-07-19T06:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-19T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-19T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-07-19T06:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-19T06:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T06:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-19T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-19T06:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-19T06:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-19T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-19T06:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-19T07:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-19T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T07:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T07:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T07:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-19T07:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-19T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-19T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-19T07:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-19T07:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-19T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-19T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-19T07:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T07:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T07:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-19T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-19T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-19T07:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-19T07:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-19T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-19T08:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-19T08:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T08:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-19T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-19T08:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-19T08:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-19T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-19T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-19T08:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-19T08:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-19T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T08:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T08:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T08:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-19T08:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-19T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-19T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-19T08:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-19T08:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-19T09:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T09:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-19T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-19T09:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-19T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-07-19T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-19T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-19T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-07-19T09:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-19T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-07-19T09:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-19T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-19T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-19T09:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-19T09:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T09:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-19T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-19T09:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-19T09:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-19T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-19T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-19T09:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-19T10:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-19T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T10:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T10:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T10:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-19T10:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-19T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-19T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-19T10:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-19T10:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-19T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-19T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-19T10:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T10:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T10:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-19T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-19T10:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-19T10:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-19T10:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-19T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-19T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-19T11:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-19T11:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T11:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-19T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-19T11:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-19T11:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-19T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-19T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-19T11:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-19T11:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-19T11:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T11:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T11:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536

## 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，同时客厅空调频繁离线/在线，表明存在设备故障或通信不稳定问题。",
  "reasoning": [
    "1. 分析温度数据：日志显示客厅温度从03:00的23.62°C（假设单位为0.01°C）持续上升至09:00后的25.58°C。虽然夏季早晨室温升高是正常现象，但结合其他房间（如主卧、厨房）的温度变化趋势来看，客厅升温速度较快且数值相对较高，需关注是否因空调失效导致热量积聚。",
    "2. 分析关键设备状态：重点关注的客厅空调(living_room_ac)在09:00至09:20之间出现了三次'DeviceOffline()'和'DeviceOnline()'事件。这种短时间的反复断连通常不是正常的网络波动，而是设备硬件故障、固件崩溃或严重通信干扰的迹象。",
    "3. 关联分析：空调频繁掉线可能导致其无法正常工作（制冷），进而解释为何客厅温度在无人居住（Occupancy=0）的情况下依然持续攀升。此外，温度传感器本身也可能因靠近热源或自身故障出现漂移，但空调的频繁离线是更明确的硬件/连接故障证据。"
  ],
  "key_evidence": [
    "[2026-07-19T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-19T09:02:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-19T09:08:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-19T09:10:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-19T09:18:00] living_room_ac | Event: DeviceOffline()",
    "living_room_temp_sensor 温度从 2362 (23.62°C) 持续上升至 2558 (25.58°C)，期间无人员活动(Occupancy=0)"
  ],
  "recommended_actions": [
    "检查客厅空调的物理电源连接及Wi-Fi/Zigbee信号强度，确认是否存在供电不稳或信号遮挡。",
    "尝试重启客厅空调设备，观察是否仍出现频繁离线现象；若问题持续，建议联系售后进行硬件检修。",
    "校准或更换客厅温度传感器，对比其他房间温度计读数，排除传感器漂移导致的误报。"
  ]
}
```

{
  "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: 三室两厅 (3BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅副灯[dimmable_light], 客厅氛围灯[onoff_light], 客厅空调[air_conditioner], 客厅温度传感器[temperature_sensor], 客厅运动传感器[occupancy_sensor], 客厅窗帘1[window_covering], 客厅窗户传感器1[contact_sensor], ... 共10个设备
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 房间 dining_room: 餐厅灯[dimmable_light], 餐厅运动传感器[occupancy_sensor]
- 房间 entrance: 入户门锁[door_lock], 入户门传感器[contact_sensor], 玄关灯[onoff_light], 玄关运动传感器[occupancy_sensor]
- 房间 kids_room: 儿童房灯[dimmable_light], 儿童房运动传感器[occupancy_sensor], 儿童房窗帘[window_covering], 儿童房窗户传感器[contact_sensor], 儿童房温度传感器[temperature_sensor]
- 房间 kitchen: 厨房灯[onoff_light], 厨房灶具[cook_surface], 厨房烟雾报警器[smoke_co_alarm], 厨房温度传感器[temperature_sensor], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher], 厨房漏水传感器[water_leak_detector]
- 房间 master_bathroom: 主卫灯[onoff_light], 主卫运动传感器[occupancy_sensor], 主卫漏水传感器[water_leak_detector]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧床头灯[onoff_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bathroom: 次卫灯[onoff_light], 次卫漏水传感器[water_leak_detector]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧空调[air_conditioner], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor]

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ1
- 重点房间: living_room
- 重点设备: living_room_ac
- 已选事件数: 135

## 设备事件日志
[2026-07-31T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-31T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-31T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-31T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-31T04:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-31T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-31T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-07-31T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-07-31T06:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T06:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-07-31T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-31T06:18:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-07-31T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-31T06:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-31T06:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T06:31:07] kids_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-31T06:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-31T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-31T06:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-31T06:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-31T06:53:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-31T06:58:02] kitchen_light | OnOff.OnOff = True
[2026-07-31T07:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T07:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-31T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-31T07:13:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-31T07:14:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-31T07:16:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-31T07:23:03] kitchen_light | OnOff.OnOff = False
[2026-07-31T07:23:18] front_door_lock | DoorLock.LockState = 2
[2026-07-31T07:23:25] front_door_lock | DoorLock.LockState = 1
[2026-07-31T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-31T07:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-31T07:38:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-31T07:43:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:46:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-31T07:53:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-31T07:59:19] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T08:03:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:06:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-31T08:13:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-31T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-31T08:23:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-31T08:28:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-31T08:33:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-31T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-31T08:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-31T08:48:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:51:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-31T08:58:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-31T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-31T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-31T09:03:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-07-31T09:08:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-07-31T09:11:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-31T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-07-31T09:18:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-31T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-31T09:28:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-31T09:31:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-31T09:38:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-31T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-31T09:48:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-31T09:53:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:56:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-31T10:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-31T10:08:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-31T10:13:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:16:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-31T10:23:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-31T10:29:19] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T10:33:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:36:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-31T10:43:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-31T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-31T10:53:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-31T10:58:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-31T11:03:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-31T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-31T11:13:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-31T11:18:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:21:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-31T11:28:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-31T11:33:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-31T11:38:21] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:41:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-31T11:48:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-31T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-31T11:58:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T12:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-31T12:01:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T12:08:08] dining_room_occupancy | OccupancySensing.Occupancy = 1

## 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(living_room_ac)在上午9:00至9:40期间出现频繁且无规律的离线/在线切换，表明设备存在网络连接不稳定或硬件故障。",
  "reasoning": [
    "1. 观察目标设备 living_room_ac 的状态日志：在 09:00:00 首次触发 DeviceOffline()，随后在 09:02:00 恢复 Online()，间隔仅2分钟。",
    "2. 紧接着在 09:08:00 再次离线，09:10:00 恢复在线；又在 09:18:00 离线，09:20:00 恢复在线。",
    "3. 这种在短短20分钟内发生三次‘离线-在线’循环的现象不符合正常的网络波动特征（通常网络抖动是随机的或持续的），也不符合用户正常开关机或重启设备的习惯（用户不会如此高频地反复重启空调）。",
    "4. 结合上下文，此时段家中多人活动（主卧、儿童房、餐厅均有 occupancy=1），但并未伴随其他大规模断网事件（如传感器数据仍正常上报），因此问题局限于该特定设备。"
  ],
  "key_evidence": [
    "[2026-07-31T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-31T09:02:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-31T09:08:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-31T09:10:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-31T09:18:00] living_room_ac | Event: DeviceOffline()"
  ],
  "recommended_actions": [
    "检查客厅空调的 Wi-Fi 信号强度及电源连接是否稳固。",
    "尝试重启空调设备或重置其网络连接配置。",
    "若问题持续，建议联系售后进行硬件检修，排除主板或通信模块故障。"
  ]
}
```

{
  "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: 120

## 设备事件日志
[2026-07-15T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-15T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-15T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-15T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-15T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-15T05:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-15T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-15T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-15T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-07-15T06:04:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T06:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-15T06:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-15T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-15T06:24:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-15T06:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-15T06:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-15T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-15T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-15T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-15T06:54:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T06:59:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-15T07:04:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:08:00] kitchen_light | OnOff.OnOff = False
[2026-07-15T07:08:12] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-15T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-15T07:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-15T07:24:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T07:28:12] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-15T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-15T07:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-15T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-15T07:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-15T07:59:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-15T08:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-15T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-15T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-15T08:24:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T08:28:12] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-15T08:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-15T08:39:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:40:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-15T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-15T08:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-15T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-07-15T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-07-15T09:04:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:05:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-07-15T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-15T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-07-15T09:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-07-15T09:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-15T09:24:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-15T09:30:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-15T09:44:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-15T09:49:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:50:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:54:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-15T10:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-15T10:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-15T10:14:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:15:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-15T10:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-15T10:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-15T10:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-15T10:39:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:40:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-15T10:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-15T10:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-15T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-15T11:04:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:05:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:06:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-15T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-15T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-15T11:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:24:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T11:25:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-15T11:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-15T11:36:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-15T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-15T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-15T11:46:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-15T11:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528

## 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9:20期间出现频繁且无规律的离线/在线切换，疑似设备通信模块故障或电源不稳定。",
  "reasoning": [
    "1. 观察重点设备 living_room_ac 的状态日志：在 09:00:00 首次报告 DeviceOffline()，随后在 09:02:00 恢复 Online()，间隔仅2分钟。",
    "2. 紧接着在 09:08:00 再次离线，09:10:00 恢复在线，间隔2分钟。",
    "3. 最后在 09:18:00 第三次离线，虽然日志片段在此后未显示恢复时间，但结合前两次模式，呈现出明显的周期性中断特征。",
    "4. 排除人为因素：此时段（09:00-09:20）客厅 occupancy_sensor 显示有人活动（09:05, 09:30等），且其他房间（厨房、卧室）传感器工作正常，温度数据连续，说明网络整体并未瘫痪，仅是该特定设备连接异常。",
    "5. 对于独居老人家庭，空调频繁断连可能导致室温失控（当时气温正在上升），影响居住舒适度甚至健康，属于典型的硬件或固件稳定性故障。"
  ],
  "key_evidence": [
    "[2026-07-15T09:00:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-15T09:02:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-15T09:08:00] living_room_ac | Event: DeviceOffline()",
    "[2026-07-15T09:10:00] living_room_ac | Event: DeviceOnline()",
    "[2026-07-15T09:18:00] living_room_ac | Event: DeviceOffline()"
  ],
  "recommended_actions": [
    "检查客厅空调的Wi-Fi信号强度及电源连接是否稳固。",
    "尝试重启空调设备或重置其网络连接配置。",
    "若问题持续，联系售后进行硬件检修，以防高温天气下设备完全失效。"
  ]
}
```

{
  "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: 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: 135

## 设备事件日志
[2026-08-15T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-15T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-15T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-08-15T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-15T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-15T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-15T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-15T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-15T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-15T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-15T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-08-15T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-08-15T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-08-15T06:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-08-15T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-15T06:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-08-15T06:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-08-15T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-15T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-15T06:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-15T06:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-15T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T06:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T06:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-15T06:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-15T06:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-15T06:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-15T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-15T06:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-15T07:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-15T07:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T07:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T07:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-15T07:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-15T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-15T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-15T07:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-15T07:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-15T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-15T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-15T07:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-15T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-15T07:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-15T07:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-15T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-15T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-15T07:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-15T08:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-15T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T08:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T08:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-15T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-15T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-15T08:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-15T08:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-15T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-15T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-15T08:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-15T08:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T08:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T08:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-15T08:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-15T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-15T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-15T08:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-15T08:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-15T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-15T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-15T09:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-08-15T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-08-15T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-15T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-15T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-08-15T09:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-15T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-08-15T09:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-15T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-08-15T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-15T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-15T09:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-15T09:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-15T09:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T09:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T09:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-15T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-15T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-15T09:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-15T09:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-15T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-15T09:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-15T10:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-15T10:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T10:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T10:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-15T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-15T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-15T10:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-15T10:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-15T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-15T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-15T10:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-15T10:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-15T10:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-15T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-15T10:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-15T10:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-15T11:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-15T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T11:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T11:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-15T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-15T11:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-15T11:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-15T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-15T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-15T11:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-15T11:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T11:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T11:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-15T11:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-15T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-15T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-15T11:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-15T11:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-15T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-15T12:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-15T12:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-15T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524

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

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "sensor_malfunction",
  "threat_description": "设备频繁离线重连",
  "reasoning": [
    "推理步骤1: 同一设备频繁离线/上线",
    "推理步骤2: 时间间隔很短",
    "推理步骤3: 符合通信不稳定故障特征"
  ],
  "key_evidence": [
    "同一设备频繁离线/上线",
    "时间间隔很短",
    "符合通信不稳定故障特征"
  ],
  "recommended_actions": [
    "判断为通信层不稳定，建议检查设备网络连接。"
  ]
}

{
  "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: 三室两厅 (3BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅副灯[dimmable_light], 客厅氛围灯[onoff_light], 客厅空调[air_conditioner], 客厅温度传感器[temperature_sensor], 客厅运动传感器[occupancy_sensor], 客厅窗帘1[window_covering], 客厅窗户传感器1[contact_sensor], ... 共10个设备
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 房间 dining_room: 餐厅灯[dimmable_light], 餐厅运动传感器[occupancy_sensor]
- 房间 entrance: 入户门锁[door_lock], 入户门传感器[contact_sensor], 玄关灯[onoff_light], 玄关运动传感器[occupancy_sensor]
- 房间 kids_room: 儿童房灯[dimmable_light], 儿童房运动传感器[occupancy_sensor], 儿童房窗帘[window_covering], 儿童房窗户传感器[contact_sensor], 儿童房温度传感器[temperature_sensor]
- 房间 kitchen: 厨房灯[onoff_light], 厨房灶具[cook_surface], 厨房烟雾报警器[smoke_co_alarm], 厨房温度传感器[temperature_sensor], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher], 厨房漏水传感器[water_leak_detector]
- 房间 master_bathroom: 主卫灯[onoff_light], 主卫运动传感器[occupancy_sensor], 主卫漏水传感器[water_leak_detector]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧床头灯[onoff_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bathroom: 次卫灯[onoff_light], 次卫漏水传感器[water_leak_detector]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧空调[air_conditioner], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor]

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ1
- 重点房间: living_room
- 重点设备: living_room_ac
- 已选事件数: 139

## 设备事件日志
[2026-08-08T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-08-08T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-08-08T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-08-08T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-08-08T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-08-08T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T04:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-08-08T04:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-08-08T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-08T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-08T05:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-08T05:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-08T05:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-08T06:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-08T06:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-08T06:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T06:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T06:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-08-08T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-08T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-08-08T06:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-08-08T06:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-08-08T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-08-08T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-08-08T06:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-08T06:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T06:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-08T06:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-08T06:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-08T06:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-08T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-08T06:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-08T06:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-08T07:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-08T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T07:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T07:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T07:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-08T07:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-08T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-08T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-08T07:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-08T07:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-08T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-08T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-08T07:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T07:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T07:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-08T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-08T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-08T07:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-08T07:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-08T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-08T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-08T08:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-08T08:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T08:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-08T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-08T08:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-08T08:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-08T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-08T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-08T08:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-08T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T08:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T08:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T08:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-08T08:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-08T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-08T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-08T08:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-08T08:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-08T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-08T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-08T09:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T09:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T09:00:00] living_room_ac | Event: DeviceOffline()
[2026-08-08T09:02:00] living_room_ac | Event: DeviceOnline()
[2026-08-08T09:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-08T09:08:00] living_room_ac | Event: DeviceOffline()
[2026-08-08T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-08T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-08T09:10:00] living_room_ac | Event: DeviceOnline()
[2026-08-08T09:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-08T09:18:00] living_room_ac | Event: DeviceOffline()
[2026-08-08T09:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-08T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-08T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-08T09:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-08T09:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T09:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-08T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-08T09:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-08T09:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-08T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-08T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-08T09:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-08T10:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-08T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T10:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T10:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T10:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-08T10:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-08T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-08T10:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-08T10:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-08T10:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-08T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-08T10:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-08T10:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T10:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T10:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-08T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-08T10:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-08T10:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-08T10:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-08T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-08T10:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-08T11:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-08T11:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T11:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-08T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-08T11:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-08T11:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-08T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-08T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-08T11:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-08T11:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-08T11:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T11:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T11:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T11:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-08T11:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-08T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540

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

请按以下 JSON 格式回答：

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

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

```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（约25.4°C-25.6°C），且与同一时间段内其他房间（如主卧、厨房）的显著低温读数存在巨大差异，疑似传感器故障或安装位置不当。",
  "reasoning": [
    "1. 数据一致性分析：在09:00至11:45期间，客厅温度传感器报告的数值稳定在25.3°C - 25.6°C之间。然而，同一时间窗内，主卧温度传感器读数约为25.3°C - 25.5°C（看似接近，但需注意后续趋势），而厨房和儿童房的温度读数明显更低，例如09:10时厨房为25.55°C，但到了10:30厨房降至25.40°C，主卧也降至25.40°C。更关键的是，观察08:00-09:00的数据，客厅从25.35°C升至25.45°C，而厨房从25.22°C升至25.42°C，两者趋同。但在10:00之后，客厅维持在25.35-25.57°C的高位震荡，而其他房间如主卧在10:25降至25.40°C，10:30更是降至25.40°C，显示出整体环境温度有下降或波动的趋势，唯独客厅传感器似乎“卡”在一个较高的区间或未能反映真实的降温过程。",
    "2. 设备状态关联：日志显示living_room_ac在09:00-09:40期间频繁出现DeviceOffline/Online事件。虽然这主要指示空调通信问题，但如果空调因离线无法制冷，室内温度理应随室外环境缓慢上升或保持高位。然而，对比主卧（通常与客厅热负荷相似）和其他区域，客厅的温度读数缺乏与其他传感器应有的相关性（Correlation）。例如，10:30时主卧25.40°C，厨房25.40°C，但客厅仍报25.57°C；11:00时主卧25.47°C，厨房25.37°C，客厅25.34°C。这种不同步性表明客厅传感器可能存在漂移或故障。",
    "3. 排除法：考虑到所有传感器均为Matter标准设备，且其他房间（主卧、厨房、儿童房）的读数变化符合正常的热惯性规律（早晨升温，上午趋于平稳或微降），客厅传感器的读数虽然绝对值看起来合理（25度左右是舒适温度），但其动态行为与其他空间不一致，且伴随空调通信不稳定，极有可能是传感器本身硬件故障（如内部元件老化导致读数偏差）或软件驱动异常。"
  ],
  "key_evidence": [
    "10:30:00 living_room_temp_sensor = 2557 (25.57°C) vs master_bedroom_temp_sensor = 2540 (25.40°C) vs kitchen_temp_sensor = 2540 (25.40°C)",
    "09:00:00 - 09:40:00 living_room_ac 频繁发生 DeviceOffline/Online 事件，可能导致温控逻辑混乱，但传感器读数本身与其他房间脱节。",
    "11:00:00 living_room_temp_sensor = 2534 (25.34°C) 而 kitchen_temp_sensor = 2537 (25.37°C)，此时差距缩小，但此前长时间的高位偏离表明传感器存在不稳定性。"
  ],
  "recommended_actions": [
    "1. 检查客厅空调（living_room_ac）的网络连接和固件版本，解决频繁的离线问题，确保温控系统正常工作。",
    "2. 对客厅温度传感器进行校准测试，或将其移至远离热源、通风良好的标准位置重新测量，对比其他已知正常的传感器读数。",
    "3. 如果校准后误差依然较大，建议更换客厅温度传感器。"
  ]
}
```

{
  "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。"
  ]
}