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_window, living_room_window_contact
- 已选事件数: 127

## 设备事件日志
[2026-08-23T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-23T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-08-23T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-23T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-23T04:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-23T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-23T05:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-23T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-23T05:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-08-23T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-08-23T06:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-23T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-23T06:22:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T06:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-08-23T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-08-23T06:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T06:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-23T06:38:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-08-23T06:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-08-23T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-23T06:57:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T07:05:00] kitchen_light | OnOff.OnOff = False
[2026-08-23T07:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T07:05:06] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-08-23T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-23T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-23T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-23T07:25:06] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-23T07:32:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T07:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-23T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-23T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-23T07:50:06] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-08-23T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-23T08:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-23T08:07:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-23T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-23T08:15:06] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-23T08:21:00] front_door_lock | DoorLock.LockState = 2
[2026-08-23T08:21:08] living_room_light | OnOff.OnOff = True
[2026-08-23T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-23T08:27:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T08:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-23T08:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-23T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-23T08:46:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-23T08:52:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T08:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-23T09:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-08-23T09:06:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-23T09:10:00] living_room_window | WindowCovering.CurrentPositionLiftPercent100ths = 5000
[2026-08-23T09:10:00] living_room_window_contact | BooleanState.StateValue = False
[2026-08-23T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-23T09:17:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:20:00] living_room_window_contact | BooleanState.StateValue = True
[2026-08-23T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-23T09:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-23T09:31:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-23T09:37:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-23T09:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-23T09:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T09:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-23T09:56:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-23T10:02:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:08:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-23T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-23T10:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-23T10:21:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-23T10:27:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-23T10:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-23T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-23T10:46:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-23T10:52:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T10:54:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-23T10:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-23T11:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-23T11:06:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-23T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-23T11:18:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T11:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-23T11:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-23T11:31:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-23T11:38:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-08-23T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-23T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-23T11:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-23T12:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-23T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-23T12:06:05] living_room_occupancy | OccupancySensing.Occupancy = 1

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

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本窗户/窗帘状态变化一致；异常样本存在重复矛盾读数。"
  ],
  "key_evidence": [
    "正常样本窗户/窗帘状态变化一致；异常样本存在重复矛盾读数。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在正常监测期间突然返回 None 值，且随后恢复的数值出现异常跳变，表明设备可能发生故障或通信中断。",
  "reasoning": [
    "推理步骤 1: 日志显示从 08:21 到 10:54，厨房温度传感器 (kitchen_temp_sensor) 持续报告合理的温度读数（约 25°C - 26°C），此时厨房有人员活动 (occupancy=1)，环境状态稳定。",
    "推理步骤 2: 在 2026-08-23T10:54:00，该传感器突然上报 MeasuredValue = None。对于连续工作的环境监测设备，在无重启或断电迹象下突然丢失数据是典型的传感器故障、电池耗尽或通信链路中断的表现。",
    "推理步骤 3: 虽然 11:15 后传感器再次上报数据，但考虑到独居老人家庭的安全需求，关键安全传感器（如烟雾报警器关联的温度监测）的间歇性失效属于高风险事件，必须视为设备健康异常处理，以防漏报火灾风险。"
  ],
  "key_evidence": [
    "2026-08-23T10:54:00 kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None",
    "此前及此后短时间内，同一传感器持续输出有效数值，排除了永久性损坏的可能，指向临时性故障或通信错误。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的物理连接、电池电量及供电情况。",
    "验证传感器与 Matter 网关/控制器的通信链路是否稳定，尝试重新配对或重置设备。",
    "在修复前，建议人工定期巡查厨房温度及烟雾状况，确保老人安全。"
  ]
}
```


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_light_1
- 已选事件数: 128

## 设备事件日志
[2026-07-17T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-07-17T14:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-17T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-17T15:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-17T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-17T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-17T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-17T16:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-17T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-17T17:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T17:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-17T17:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-07-17T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-17T17:20:27] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T17:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-17T17:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-17T17:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T17:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-17T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-17T17:40:27] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-17T17:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-17T17:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-17T17:57:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T18:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-07-17T18:00:27] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T18:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-17T18:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-07-17T18:12:00] front_door_lock | DoorLock.LockState = 2
[2026-07-17T18:12:05] entrance_light | OnOff.OnOff = True
[2026-07-17T18:12:28] living_room_ac | Thermostat.SystemMode = 3
[2026-07-17T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-17T18:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-17T18:22:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-17T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-17T18:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-17T18:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T18:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-17T18:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-17T18:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2291
[2026-07-17T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-17T18:57:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T19:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-17T19:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T19:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-17T19:07:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-17T19:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-17T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-07-17T19:22:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T19:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-17T19:27:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T19:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-17T19:30:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-07-17T19:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-07-17T19:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-17T19:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-07-17T19:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T19:48:05] kitchen_dishwasher | OperationalState.OperationalState = 1
[2026-07-17T19:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2600
[2026-07-17T19:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-17T19:57:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T20:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-17T20:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-17T20:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-17T20:10:00] living_room_light_1 | OnOff.OnOff = True
[2026-07-17T20:10:00] living_room_light_1 | LevelControl.CurrentLevel = 180
[2026-07-17T20:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T20:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-17T20:18:00] living_room_light_1 | LevelControl.CurrentLevel = 30
[2026-07-17T20:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2270
[2026-07-17T20:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-17T20:28:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T20:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-17T20:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-17T20:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-07-17T20:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-07-17T20:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-17T20:53:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T20:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-17T21:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-07-17T21:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T21:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-07-17T21:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T21:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2246
[2026-07-17T21:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-07-17T21:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-07-17T21:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-17T21:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T21:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-17T21:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T21:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-07-17T21:38:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T21:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-17T21:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-07-17T21:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-17T21:54:02] entrance_light | OnOff.OnOff = False
[2026-07-17T21:54:36] front_door_lock | DoorLock.LockState = 1
[2026-07-17T21:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-07-17T22:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-07-17T22:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T22:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-07-17T22:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T22:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-07-17T22:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-17T22:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-07-17T22:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-07-17T22:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T22:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-17T22:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T22:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-07-17T22:38:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T22:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-07-17T22:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-07-17T22:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-07-17T22:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-07-17T22:57:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-17T23:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-17T23:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T23:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-07-17T23:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-17T23:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-07-17T23:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-07-17T23:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-07-17T23:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263

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

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本 OnOff 和亮度值一致变化；异常样本存在持续矛盾状态。"
  ],
  "key_evidence": [
    "正常样本 OnOff 和亮度值一致变化；异常样本存在持续矛盾状态。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在洗碗机启动后出现严重数据漂移，读数异常升高至 2600 (约 26°C x 100)，远超物理可能范围，表明传感器故障或校准失效。",
  "reasoning": [
    "推理步骤 1: 分析时间线，在 19:48:05 洗碗机 (kitchen_dishwasher) 开始运行 (OperationalState = 1)。",
    "推理步骤 2: 观察紧随其后的温度变化，19:50:00 时厨房温度传感器读数从正常的 2307 突变为 2600。",
    "推理步骤 3: 评估数值合理性，2600 (即 26.00°C 或按 Matter 常见编码规则为 2600mK/0.1°C 单位下的极端值) 对于正在运行的洗碗机内部或紧邻环境来说极不合理（通常洗碗机加热可达 60-70°C，但不会瞬间导致传感器逻辑溢出或显示如此巨大的偏差，且后续读数未回落至合理区间），结合之前稳定的 2300 左右读数，判定为传感器硬件故障、信号干扰或固件计算错误导致的 sensor_malfunction。",
    "推理步骤 4: 排除其他因素，虽然窗户接触传感器在 19:30 关闭，但这与温度突变无直接因果关系；烟雾报警器未触发，说明尚未达到火灾阈值，但传感器本身的不可信状态构成了安全隐患。"
  ],
  "key_evidence": [
    "19:48:05 洗碗机启动事件记录：'kitchen_dishwasher | OperationalState.OperationalState = 1'",
    "19:50:00 厨房温度传感器异常跳变：'kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2600' (此前稳定在 2300 左右)"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的物理连接和供电情况，尝试重启设备。",
    "暂时忽略该传感器的读数，依赖其他房间的温度传感器进行环境监测，避免误报或漏报。",
    "联系设备制造商或技术支持进行固件更新或硬件更换，因为该传感器已无法提供准确数据。",
    "建议同时检查厨房烟雾报警器和一氧化碳探测器，确保在主传感器失效时备用安全设备正常工作。"
  ]
}
```


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

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

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

## 家庭环境信息
家庭布局: 三室两厅 (3BR)
- 重点房间 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 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 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: balcony
- 重点设备: balcony_laundry_washer
- 已选事件数: 137

## 设备事件日志
[2026-08-16T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-16T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-16T07:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T07:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T07:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-16T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-16T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-16T07:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-16T07:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-16T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-16T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-16T07:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-16T07:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T07:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-16T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-16T07:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-16T07:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-16T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-16T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-16T07:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-16T08:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-16T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T08:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T08:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T08:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-16T08:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-16T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-16T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-16T08:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-16T08:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-16T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-16T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-16T08:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T08:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T08:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-16T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-16T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-16T08:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-16T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-16T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-16T09:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-16T09:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T09:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-16T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-16T09:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-16T09:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-16T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-16T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-16T09:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-16T09:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-16T09:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T09:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T09:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T09:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-16T09:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-16T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-16T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-16T09:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-16T09:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-16T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-16T10:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2560
[2026-08-16T10:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T10:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T10:00:00] balcony_laundry_washer | OperationalState.OperationalState = 1
[2026-08-16T10:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-16T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-16T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-16T10:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-08-16T10:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-16T10:20:00] balcony_laundry_washer | OperationalState.CountdownTime = 2400
[2026-08-16T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-16T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-16T10:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-16T10:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T10:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-16T10:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-16T10:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-16T10:40:00] balcony_laundry_washer | OperationalState.CountdownTime = 1200
[2026-08-16T10:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-16T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-16T10:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-16T10:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-08-16T11:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-16T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T11:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T11:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T11:00:00] balcony_laundry_washer | OperationalState.OperationalState = 0
[2026-08-16T11:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-16T11:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-16T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-16T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-16T11:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-16T11:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-16T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-16T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-16T11:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T11:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T11:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-16T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-16T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-16T11:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-16T11:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-16T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-16T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-16T12:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-16T12:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T12:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-16T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-16T12:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-16T12:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-16T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-16T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-16T12:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-16T12:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-16T12:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T12:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T12:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T12:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-16T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-16T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-16T12:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-16T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-08-16T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-16T13:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T13:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-16T13:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-08-16T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-16T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-16T13:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-08-16T13:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-16T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-08-16T13:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-16T13:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501

## 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": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "未检测到安全威胁或设备故障，日志显示为正常的家庭环境状态及洗衣机定时运行记录。",
  "reasoning": [
    "1. 重点设备（阳台洗衣机）状态分析：日志显示在 10:00 时 OperationalState 变为 1（运行中），随后在 10:20 和 10:40 分别报告 CountdownTime 为 2400秒（40分钟）和 1200秒（20分钟）。这表明洗衣机正在执行一个标准的洗涤程序，且倒计时正常递减，符合预期行为。在 11:00 时 OperationalState 变为 0（停止/完成），整个周期持续约1小时，属于常见的洗衣时长，无异常中断或卡死迹象。",
    "2.  occupancy（存在性）传感器分析：所有房间的运动传感器在上午时段（07:00-13:30）均持续报告 Occupancy = 0。虽然这通常意味着家中无人，但结合洗衣机自动运行的事实，这可能是一个工作日白天家中无人的场景，或者是用户设置了自动化任务。没有检测到非法入侵所需的“非授权时间+有人活动”模式。",
    "3. 温度传感器数据一致性：各房间温度传感器读数在 24.9°C - 25.6°C 之间波动，变化平缓且符合室内环境温度特征，未发现传感器漂移、故障或极端高温（火灾风险）迹象。"
  ],
  "key_evidence": [
    "[2026-08-16T10:00:00] balcony_laundry_washer | OperationalState.OperationalState = 1 (开始运行)",
    "[2026-08-16T10:20:00] balcony_laundry_washer | OperationalState.CountdownTime = 2400 (剩余40分钟)",
    "[2026-08-16T10:40:00] balcony_laundry_washer | OperationalState.CountdownTime = 1200 (剩余20分钟)",
    "[2026-08-16T11:00:00] balcony_laundry_washer | OperationalState.OperationalState = 0 (运行结束)"
  ],
  "recommended_actions": [
    "无需采取任何行动，当前系统运行正常。",
    "建议确认该洗衣程序是否为预设的自动化任务，以确保与住户习惯一致。"
  ]
}
```

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "intrusion",
  "threat_description": "这些变化表明存在安全异常。",
  "reasoning": [
    "推理步骤1: 我把本可由正常模式解释的事件误判成了异常。"
  ],
  "key_evidence": [
    "正常样本倒计时递减并停止；异常样本数值长时间固定。"
  ],
  "recommended_actions": [
    "建议立即检查并触发安全响应。"
  ]
}


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

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

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

## 家庭环境信息
家庭布局: 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_light_1
- 已选事件数: 121

## 设备事件日志
[2026-07-08T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-08T14:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-08T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-08T15:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-08T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-08T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-07-08T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-08T16:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-08T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-08T17:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T17:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-08T17:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-08T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-07-08T17:20:14] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T17:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-08T17:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-08T17:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T17:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-08T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-08T17:40:14] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-08T17:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-08T17:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-08T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-08T18:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-08T18:05:14] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T18:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-07-08T18:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-08T18:16:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-08T18:16:28] living_room_ac | OnOff.OnOff = True
[2026-07-08T18:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-08T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-08T18:26:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T18:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-08T18:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-08T18:39:30] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-08T18:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-08T18:46:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-08T18:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-08T19:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-08T19:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-08T19:06:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T19:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-07-08T19:11:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T19:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-08T19:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-08T19:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2673
[2026-07-08T19:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-08T19:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T19:36:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T19:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-08T19:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-08T19:46:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T19:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-08T19:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-07-08T19:56:15] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T20:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-08T20:01:05] kitchen_dishwasher | OperationalState.OperationalState = 1
[2026-07-08T20:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-07-08T20:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-08T20:10:00] living_room_light_1 | OnOff.OnOff = True
[2026-07-08T20:10:00] living_room_light_1 | LevelControl.CurrentLevel = 180
[2026-07-08T20:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258
[2026-07-08T20:16:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T20:18:00] living_room_light_1 | LevelControl.CurrentLevel = 30
[2026-07-08T20:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-08T20:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-07-08T20:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-07-08T20:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-08T20:39:30] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T20:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-08T20:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-08T20:46:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T20:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-08T20:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-08T21:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-08T21:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-07-08T21:11:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T21:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-08T21:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2251
[2026-07-08T21:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-07-08T21:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-08T21:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T21:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-08T21:36:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T21:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-08T21:41:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T21:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-08T21:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-07-08T21:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-07-08T22:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-08T22:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T22:06:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T22:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-07-08T22:11:07] living_room_ac | OnOff.OnOff = False
[2026-07-08T22:11:32] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-07-08T22:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-07-08T22:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-07-08T22:21:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T22:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-08T22:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-07-08T22:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T22:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2255
[2026-07-08T22:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2262
[2026-07-08T22:41:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T22:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-07-08T22:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-07-08T22:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-08T23:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2257
[2026-07-08T23:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-08T23:06:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T23:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-08T23:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-08T23:16:07] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-08T23:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-08T23:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2269
[2026-07-08T23:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267

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

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本 OnOff 和亮度值一致变化；异常样本存在持续矛盾状态。"
  ],
  "key_evidence": [
    "正常样本 OnOff 和亮度值一致变化；异常样本存在持续矛盾状态。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在无人操作且无热源设备（如灶具）运行的情况下，报告了远超物理可能性的异常高温读数（2539-2673 mK），表明传感器存在严重故障或校准失效。",
  "reasoning": [
    "推理步骤 1: 分析时间线发现，在 19:00 至 19:25 期间，厨房温度传感器读数从正常的 2300 mK (23°C) 急剧飙升至 2673 mK (26.73°C)，随后又回落。",
    "推理步骤 2: 交叉验证其他环境数据：同一时间段内，客厅、主卧、次卧的温度传感器读数均在正常范围（约 22-23°C）内缓慢变化，且入户门运动传感器显示该时段有人员进出但并未长时间停留在厨房进行烹饪活动。",
    "推理步骤 3: 检查关联设备状态日志，厨房灶具 (cook_surface) 在此期间没有任何开启记录，洗碗机直到 20:01 才启动。因此，排除人为开启炉灶导致的高温可能性。",
    "推理步骤 4: 考虑到 Matter 协议中温度通常以毫开尔文 (mK) 为单位，2673 mK 约为 26.7°C，虽然数值本身未超过量程上限，但在无热源环境下出现如此剧烈的瞬时跳变且与其他房间温差巨大，符合传感器漂移、硬件损坏或被干扰的特征，属于典型的 sensor_malfunction。"
  ],
  "key_evidence": [
    "2026-07-08T19:15:00 厨房温度突增至 2539 mK，而周围房间温度稳定在 22-23°C。",
    "2026-07-08T19:25:00 厨房温度进一步异常升高至 2673 mK，此时无任何烹饪设备运行记录。",
    "2026-07-08T19:30:00 厨房温度迅速回落至 2290 mK，表现出非物理规律的剧烈波动特征。"
  ],
  "recommended_actions": [
    "立即将厨房温度传感器标记为‘故障’或‘不可信’，并在智能家居系统中暂时禁用其报警功能以防误报。",
    "安排技术人员上门检查厨房温度传感器的硬件连接及供电情况，必要时更换新传感器。",
    "建议用户手动使用独立温度计监测厨房实际温度，以确保环境安全。"
  ]
}
```


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 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 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 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: balcony
- 重点设备: balcony_laundry_washer
- 已选事件数: 138

## 设备事件日志
[2026-07-15T07:00:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-15T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T07:00:05] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-15T07:04:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:05:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-15T07:15:00] dining_room_light | OnOff.OnOff = False
[2026-07-15T07:15:35] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-15T07:15:44] front_door_lock | Event: LockOperation(LockOperationType=0, OperationSource=Manual)
[2026-07-15T07:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-15T07:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:25:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-15T07:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-15T07:35:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-15T07:44:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:45:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-15T07:50:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-15T07:59:43] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T08:04:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:05:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-15T08:10:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-15T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-15T08:20:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-15T08:29:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-15T08:30:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-15T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-15T08:40:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-15T08:49:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:50:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-15T08:55:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-15T09:00:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-15T09:09:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:10:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-15T09:15:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-15T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-15T09:25:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-15T09:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-15T09:35:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-15T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-15T09:45:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-15T09:54:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:55:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-15T10:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T10:00:00] balcony_laundry_washer | OperationalState.OperationalState = 1
[2026-07-15T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-15T10:05:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-15T10:14:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:15:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-15T10:20:00] balcony_laundry_washer | OperationalState.CountdownTime = 2400
[2026-07-15T10:20:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-15T10:29:43] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T10:34:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:35:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-15T10:40:00] balcony_laundry_washer | OperationalState.CountdownTime = 1200
[2026-07-15T10:40:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-15T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-15T10:50:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-15T10:59:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-15T11:00:00] balcony_laundry_washer | OperationalState.OperationalState = 0
[2026-07-15T11:00:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-15T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-15T11:10:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-15T11:19:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:20:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-15T11:25:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-15T11:30:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-15T11:39:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:40:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-15T11:45:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-15T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-15T11:55:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-15T12:05:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-15T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-15T12:15:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-15T12:24:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:25:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-15T12:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-15T12:35:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-15T12:44:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:45:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-15T12:50:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-15T12:59:43] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T13:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T13:04:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T13:05:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T13:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-15T13:10:38] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T13:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-15T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-15T13:20:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T13:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-15T13:29:00] master_bedroom_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": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "洗衣机运行状态正常，符合预设程序逻辑，未发现安全威胁或设备故障。",
  "reasoning": [
    "1. 分析目标设备 'balcony_laundry_washer' 的状态变化：在 10:00:00 时，OperationalState 变为 1（通常表示运行中/忙碌），随后在 10:20:00 和 10:40:00 分别报告 CountdownTime 为 2400秒（40分钟）和 1200秒（20分钟）。这表明设备正在执行倒计时程序，且时间递减符合预期（每20分钟减少20分钟）。",
    "2. 检查任务完成状态：在 11:00:00 时，OperationalState 变为 0（空闲/停止），此时距离开始运行正好过去了60分钟（10:00至11:00），与中间显示的剩余时间逻辑一致（从40分钟倒计时到0后自动结束或用户手动结束，但状态归零表明任务已完成）。",
    "3. 结合环境上下文：在此期间（10:00-11:00），家中多个区域（主卧、儿童房、餐厅、玄关）的运动传感器持续检测到有人活动（Occupancy=1），说明家中有住户，洗衣机的启动和运行是合理的日常行为，非无人看管导致的潜在风险。"
  ],
  "key_evidence": [
    "[2026-07-15T10:00:00] balcony_laundry_washer | OperationalState.OperationalState = 1 (开始运行)",
    "[2026-07-15T10:20:00] balcony_laundry_washer | OperationalState.CountdownTime = 2400 (剩余40分钟)",
    "[2026-07-15T10:40:00] balcony_laundry_washer | OperationalState.CountdownTime = 1200 (剩余20分钟)",
    "[2026-07-15T11:00:00] balcony_laundry_washer | OperationalState.OperationalState = 0 (运行结束)"
  ],
  "recommended_actions": [
    "无需采取任何行动，设备工作正常。"
  ]
}
```

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "儿童房温度传感器数据严重异常，读数高达 250°C+，远超物理可能范围，表明传感器故障或校准错误。",
  "reasoning": [
    "推理步骤 1: 分析日志中 'kids_room_temp_sensor' 的读数变化。从 07:10 开始，温度读数为 2512 (即 25.12°C)，随后在 07:20 变为 2515，并在后续时间持续维持在 2530-2558 之间（如 09:25 达到 2557）。",
    "推理步骤 2: 对比其他房间的温度传感器数据。客厅、厨房、主卧等房间的温度读数均在正常的 24°C - 26°C 范围内波动（例如 07:30 客厅为 2517，12:55 厨房为 2503），且数值格式与儿童房一致（均为十进制表示的摄氏度，但儿童房数值大得离谱）。",
    "推理步骤 3: 结合物理常识判断。室内环境温度不可能达到 250°C 以上，该数值极有可能是传感器硬件故障、信号干扰导致的数据溢出，或者是固件将单位/比例因子解析错误（例如本应读取 25.12 却误报为 2512）。这种持续的、非线性的极端高值属于典型的传感器失效特征，而非真实的热环境。",
    "推理步骤 4: 评估风险。虽然当前未直接显示火灾报警触发，但错误的温度数据可能导致自动化系统（如空调）做出错误决策（例如因误判高温而过度制冷，或因逻辑混乱停止运行），且掩盖了真实的火灾隐患。"
  ],
  "key_evidence": [
    "2026-07-15T07:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512",
    "2026-07-15T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557 (对比显示正常)",
    "2026-07-15T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558 (对比显示正常)"
  ],
  "recommended_actions": [
    "立即检查并更换儿童房的温度传感器硬件。",
    "检查 Matter 网关日志，确认是否存在通信协议解析错误或数据包损坏。",
    "暂时禁用基于该传感器的自动化场景，防止误操作影响家庭舒适度或安全策略。",
    "手动核实儿童房实际室温，确保无过热隐患。"
  ]
}
```


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: bedroom_temp_sensor
- 已选事件数: 136

## 设备事件日志
[2026-08-17T00:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2180
[2026-08-17T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-17T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-17T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-17T08:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-08-17T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-17T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-17T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-17T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-17T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-17T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-17T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-17T09:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-17T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-17T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-17T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-17T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-17T10:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-17T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-17T10:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-17T10:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-17T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-17T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-17T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-17T11:08:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-17T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-17T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-17T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-17T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-17T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-17T11:38:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-17T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-17T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-17T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-17T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-17T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-17T12:08:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-17T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-17T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-17T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-17T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-08-17T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-17T12:38:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-17T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-17T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-08-17T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-08-17T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-17T13:08:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-17T13:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-08-17T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-08-17T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-08-17T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-08-17T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2481
[2026-08-17T13:38:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T13:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-08-17T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-08-17T13:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-08-17T13:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-08-17T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-17T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-17T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-17T14:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-17T14:08:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-08-17T14:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-08-17T14:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-08-17T14:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-17T14:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-08-17T14:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-17T14:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-17T14:38:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T14:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-17T14:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-17T14:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-17T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-17T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-17T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-17T15:08:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T15:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-17T15:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-17T15:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-17T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-17T15:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-17T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-17T15:38:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T15:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-08-17T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-17T15:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-08-17T15:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-17T16:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-08-17T16:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-17T16:08:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-08-17T16:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-17T16:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-08-17T16:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-08-17T16:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-08-17T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-08-17T16:38:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T16:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-17T16:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-08-17T16:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-08-17T16:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2273
[2026-08-17T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-08-17T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-17T17:08:06] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-17T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-17T17:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2236
[2026-08-17T17:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-17T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-17T17:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2237
[2026-08-17T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-17T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-08-17T18:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-08-17T18:05:19] living_room_ac | OnOff.OnOff = True
[2026-08-17T18:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-08-17T18:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-08-17T18:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2204
[2026-08-17T18:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-08-17T18:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-08-17T18:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-08-17T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2206
[2026-08-17T18:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2199
[2026-08-17T19:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2191
[2026-08-17T19:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2186
[2026-08-17T19:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2183

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

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本是小幅波动；异常样本出现不可能的极端跳变。"
  ],
  "key_evidence": [
    "正常样本是小幅波动；异常样本出现不可能的极端跳变。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "卧室温度传感器在日志末尾出现数据跳变和逻辑矛盾，疑似设备故障或校准失效。",
  "reasoning": [
    "推理步骤 1: 分析卧室温度传感器 (bedroom_temp_sensor) 的时间序列数据。从 14:00 到 17:55，温度呈现合理的自然下降趋势（从约 2381 mK/23.8°C 降至 2219 mK/22.2°C），符合夜间至傍晚室温随时间降低的物理规律。",
    "推理步骤 2: 观察 18:00 之后的数据异常。在 18:00:00 记录为 2219 mK (22.19°C)，随后在 18:05:00 突然跳变为 2216 mK (22.16°C)，虽然数值微小变化正常，但紧接着在 18:20:00 再次跳变至 2222 mK (22.22°C)。",
    "推理步骤 3: 发现严重的逻辑矛盾。在 18:05:19 客厅空调开启后，卧室温度本应因热传导略有上升或保持稳定，但在 18:20:00 之后，温度读数开始剧烈且无规律地波动（2204 -> 2215 -> 2214 -> 2207...），且在 18:50:00 时读数为 2206 mK (22.06°C)，这与之前持续下降的趋势不符。更关键的是，如果对比其他房间（如厨房温度稳定在 23-24°C 左右，即 2300-2400 mK），卧室传感器的读数范围（2100-2200 mK）与其他房间相比偏低且不稳定，结合 Matter 协议中常见的整数截断问题，这种非线性的、不符合热力学规律的跳动表明传感器可能已损坏、电池电量不足导致通信错误，或者固件存在严重 Bug。",
    "key_evidence": [
      "bedroom_temp_sensor 在 18:00 至 19:10 期间出现非单调的温度波动，违背了无热源介入下的自然冷却规律。",
      "卧室温度读数 (21xx-22xx mK) 显著低于同时间段厨房温度 (23xx-24xx mK)，且两者温差变化缺乏物理依据。"
    ],
    "recommended_actions": [
      "立即检查卧室温度传感器的电池电量或供电状态。",
      "尝试重新配对或重置卧室温度传感器以刷新固件连接。",
      "若条件允许，使用独立温度计测量实际室温，验证传感器读数是否准确。",
      "在修复前，依赖客厅或其他区域的温度传感器作为卧室温度的参考值。"
    ]
  }
}
```