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: bathroom_occupancy, living_room_light_1, master_bedroom_occupancy
- 已选事件数: 134

## 设备事件日志
[2026-07-28T00:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-28T01:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-28T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-28T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-28T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-07-28T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-28T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-07-28T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-28T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-28T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-28T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-28T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-07-28T03:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-28T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-28T04:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-28T04:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-28T04:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-28T04:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-28T04:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-28T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-28T04:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-28T04:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-28T04:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-28T04:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T04:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T04:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-28T04:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-28T04:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-28T04:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-28T04:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-28T04:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-28T05:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-28T05:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T05:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T05:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-28T05:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-28T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-28T05:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-28T05:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2460
[2026-07-28T05:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-28T05:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2462
[2026-07-28T05:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T05:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-28T05:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-28T05:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-07-28T05:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-07-28T05:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-28T05:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-28T05:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-28T06:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-07-28T06:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T06:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T06:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-28T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-28T06:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-07-28T06:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-28T06:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-07-28T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-28T06:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-28T06:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-28T06:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T06:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T06:35:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-28T06:39:03] bathroom_light | OnOff.OnOff = True
[2026-07-28T06:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-28T06:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-28T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-28T06:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-28T06:54:03] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T06:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-07-28T06:55:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T06:58:10] kitchen_light | OnOff.OnOff = True
[2026-07-28T07:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-28T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T07:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T07:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-28T07:05:00] living_room_light_1 | OnOff.OnOff = True
[2026-07-28T07:10:00] bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-28T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-28T07:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-28T07:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-28T07:26:00] kitchen_light | OnOff.OnOff = False
[2026-07-28T07:26:23] front_door_lock | DoorLock.LockState = 2
[2026-07-28T07:26:29] front_door_contact | BooleanState.StateValue = True
[2026-07-28T07:29:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T07:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-28T07:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2522
[2026-07-28T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-28T07:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-28T07:41:26] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T07:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-28T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-28T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-28T07:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-28T08:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-28T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T08:01:26] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-28T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-28T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-28T08:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-28T08:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-28T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-28T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-28T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-28T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-28T08:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T08:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-28T08:36:26] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T08:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-28T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-28T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-28T08:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-28T08:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-28T08:59:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T09:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-28T09:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-28T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-28T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-28T09:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-28T09:11:26] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-28T09:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-28T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-28T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555

## 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: 正常样本是起床链路的短时活动；异常样本是长时间单点持续 Occupied。"
  ],
  "key_evidence": [
    "正常样本是起床链路的短时活动；异常样本是长时间单点持续 Occupied。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "室内温度传感器读数严重偏离物理现实，显示异常高温（22.9°C - 25.5°C），且数值随时间持续线性上升，不符合自然热力学规律。",
  "reasoning": [
    "推理步骤 1: 分析日志中的温度数据，发现从凌晨 01:00 到上午 09:20，客厅、厨房、主卧等多个房间的温度传感器读数从约 22.9°C (2292 mK) 持续上升至 25.5°C (2553 mK)。",
    "推理步骤 2: 这种升温速率极快且均匀，在无人活动（occupancy 长期为 0）的情况下，室内温度不可能在不到 10 小时内自然升高超过 2.5°C 并达到如此高的绝对值，这违背了基本的物理常识和房屋热惯性。",
    "推理步骤 3: 对比其他设备状态，门锁正常开关，灯光操作正常，人员进出记录合理，排除了入侵或火灾导致的真实高温环境。问题根源在于温度传感器的测量值（MeasuredValue）存在严重的漂移或校准错误，导致上报数据失真。"
  ],
  "key_evidence": [
    "2026-07-28T01:00:00 living_room_temp_sensor: TemperatureMeasurement.MeasuredValue = 2292 (22.92°C)",
    "2026-07-28T09:20:00 kitchen_temp_sensor: TemperatureMeasurement.MeasuredValue = 2555 (25.55°C)",
    "期间所有房间 occupancy 均为 0，无热源开启，但温度却呈现不可能的线性增长趋势。"
  ],
  "recommended_actions": [
    "立即检查并重新校准所有受影响的温度传感器（living_room, kitchen, master_bedroom 等）。",
    "检查传感器硬件是否受到干扰、电池电量是否不足或固件是否存在 Bug。",
    "暂时依赖备用手动温度计进行交叉验证，直到传感器读数恢复正常范围。"
  ]
}
```


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_temp_sensor
- 已选事件数: 129

## 设备事件日志
[2026-07-10T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-10T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-10T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-10T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-10T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-10T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-10T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-10T11:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-10T11:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T11:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-10T11:08:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-10T11:17:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T11:23:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-10T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-10T11:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-10T11:37:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-10T11:43:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T11:53:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-10T12:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T12:03:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:05:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-10T12:13:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-10T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-10T12:22:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-10T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-10T12:33:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-10T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-10T12:42:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-10T12:48:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:50:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-10T13:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-10T13:02:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-10T13:08:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:10:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-10T13:18:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-10T13:24:34] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T13:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-10T13:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T13:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-10T13:38:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-10T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-07-10T13:47:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-10T13:53:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T13:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-10T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-10T14:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-10T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-07-10T14:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-10T14:07:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-07-10T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-10T14:13:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-10T14:23:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-10T14:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T14:33:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:35:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-10T14:43:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-10T14:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-10T14:52:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T14:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-10T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-10T15:03:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-10T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-10T15:12:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-10T15:18:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:20:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-10T15:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-10T15:32:25] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-10T15:38:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:40:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-10T15:48:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T15:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-10T15:54:34] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T16:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-10T16:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T16:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2399
[2026-07-10T16:08:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-10T16:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-10T16:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-10T16:24:34] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T16:25:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-10T16:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T16:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-10T16:37:08] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-10T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-10T16:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-07-10T16:53:05] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T16:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-10T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-10T17:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-07-10T17:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T17:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359

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

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": false,
  "confidence": "medium",
  "threat_type": "none",
  "threat_description": "当前日志更符合正常模式，不建议报警。",
  "reasoning": [
    "推理步骤1: 正常样本是小幅波动；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。"
  ]
}

{
  "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": [
    "正常样本是小幅波动；异常样本出现不可能的极端跳变。"
  ],
  "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: 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_light_1, master_bathroom_occupancy, master_bedroom_occupancy
- 已选事件数: 135

## 设备事件日志
[2026-07-05T00:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-05T01:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-05T01:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-05T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-05T02:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-05T02:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-05T02:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-07-05T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-05T03:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-05T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-05T03:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-05T03:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-05T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-05T04:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-05T04:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T04:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T04:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-05T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-05T04:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-05T04:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-05T04:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2404
[2026-07-05T04:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-05T04:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-05T04:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-05T04:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T04:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T04:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-05T04:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-05T04:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-05T04:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-05T04:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-05T04:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-05T04:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-05T05:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-05T05:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T05:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T05:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T05:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-05T05:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-05T05:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-05T05:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-05T05:20:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-05T05:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-05T05:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-05T05:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-05T05:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T05:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T05:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-05T05:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-07-05T05:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-05T05:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2474
[2026-07-05T05:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-07-05T05:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-05T05:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-05T06:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2464
[2026-07-05T06:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T06:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T06:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-05T06:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-05T06:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-05T06:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-05T06:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-07-05T06:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-05T06:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-05T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T06:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T06:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T06:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2486
[2026-07-05T06:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-05T06:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-05T06:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-05T06:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-05T06:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-05T06:55:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T07:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-05T07:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T07:00:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T07:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-05T07:05:00] living_room_light_1 | OnOff.OnOff = True
[2026-07-05T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-05T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-05T07:10:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-05T07:15:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-05T07:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-07-05T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-05T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-05T07:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-05T07:30:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T07:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-05T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-05T07:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-05T07:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-05T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-05T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-05T07:55:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-05T08:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-05T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T08:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T08:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T08:05:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-05T08:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-05T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-05T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-05T08:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-05T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-05T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-05T08:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T08:30:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T08:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-05T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-05T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-05T08:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-05T08:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-05T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-05T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-05T09:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-05T09:00:00] dining_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T09:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-05T09:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-05T09:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-05T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-05T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-05T09:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-05T09:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-05T09:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-05T09:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0

## 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": "未检测到安全威胁或设备异常，所有日志记录符合正常家庭作息及设备运行规律。",
  "reasoning": [
    "1.  occupancy传感器状态分析：重点关注的 master_bedroom_occupancy 和 master_bathroom_occupancy 在凌晨至清晨大部分时间为0（无人），仅在06:55短暂变为1后迅速归零，随后在07:10 master_bathroom_occupancy 再次变为1。这符合住户早起、进入主卧短暂活动后前往卫生间洗漱的正常行为模式。",
    "2.  温度数据合理性分析：living_room_temp_sensor 等温度传感器的读数（如2303, 2404等）明显高于常规摄氏度数值（通常家用传感器单位为0.01°C或整数°C）。若视为0.01°C单位，则室温约为23-25°C，处于舒适区间；若视为直接摄氏度，则数值异常高，但考虑到这是“已选日志”且其他房间温度变化趋势一致（缓慢上升/波动），更可能是传感器校准或上报格式导致的显示值，而非真实物理环境达到2400度。结合生活常识，排除火灾风险。",
    "3.  时间序列逻辑性：从00:00到09:30的时间段内，各房间 occupancy 传感器在无人的情况下保持为0，有人时短暂触发，没有长时间滞留或异常频繁开关的情况。living_room_light_1 在07:05开启，与人员活动（06:55-07:10）时间吻合，属于正常的自动化或手动控制行为。",
    "4.  无其他告警：日志中未出现烟雾报警、漏水检测、门锁异常或窗户非法开启等高危事件。"
  ],
  "key_evidence": [
    "master_bedroom_occupancy 在 06:55 短暂变为 1，随后 07:00 变回 0，符合起床活动特征。",
    "master_bathroom_occupancy 在 07:10 变为 1，符合洗漱场景。",
    "living_room_light_1 在 07:05 开启，与人员活动时间段重叠，逻辑自洽。",
    "所有 occupancy 传感器在无活动时段均稳定为 0，无异常持续占用或闪烁。"
  ],
  "recommended_actions": [
    "无需采取紧急措施。",
    "建议定期校准温度传感器，确认其上报单位是否为0.01°C，以消除对数值的误解。"
  ]
}
```

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "客厅温度传感器读数严重偏离物理现实，显示异常高温（23°C-25°C 范围被记录为 2300-2500+），且与其他房间传感器数据不匹配，存在严重的传感器漂移或故障。",
  "reasoning": [
    "推理步骤 1: 分析日志中的温度数据格式。从 01:00 开始，living_room_temp_sensor 的 MeasuredValue 从 2303 持续上升至 2555。在 Matter 协议及常规智能家居系统中，温度通常以 0.01°C 为单位存储整数，因此 2303 代表 23.03°C，2555 代表 25.55°C。虽然数值本身在夏季可能合理，但需结合上下文判断。",
    "推理步骤 2: 对比多房间传感器数据的一致性。厨房 (kitchen) 和儿童房 (kids_room) 的温度读数与客厅高度同步且数值接近（例如 06:45 时客厅 2501，厨房 2495，儿童房 2496）。这表明所有传感器确实都在报告‘高温’状态，排除了单一设备随机故障的可能性，指向系统性问题或环境极端情况。",
    "推理步骤 3: 评估时间线与行为逻辑。日志时间为凌晨 01:00 至上午 09:30。在此期间，所有运动传感器 (occupancy_sensor) 均报告为 0 (无人)，直到 07:05 主卧有人。如果室内真的达到了 25°C+ 的高温（假设初始值 23°C 是室温基准，后续升温至 25°C+ 仅升高了 2 度，这在空调开启情况下正常；但若理解为绝对温度异常高，则需考虑其他因素）。然而，关键在于数值的**线性增长模式**：从 01:00 到 09:30，温度几乎每 15 分钟稳定上升约 1-2 个单位，这种完美的线性递增不符合自然热力学规律（自然升温受散热影响会有波动），更像是传感器校准错误、固件 Bug 导致的计数溢出或模拟信号干扰造成的虚假读数累积。此外，若 2303 代表 2303°C 则是明显错误，若代表 23.03°C 则升温幅度极小且过于规律，结合 'sensor_drift' 选项，最可能的原因是传感器零点漂移或算法计算错误导致读数随时间线性偏大。",
    "推理步骤 4: 综合判断。尽管没有直接触发火灾报警，但如此规律且持续的‘异常’升温趋势（无论是否真实达到该温度，其变化率都违背常理）属于典型的传感器漂移 (Sensor Drift)。这种数据不可靠会导致自动化系统（如空调控制、安防联动）做出错误决策，构成潜在的安全隐患。"
  ],
  "key_evidence": [
    "living_room_temp_sensor 读数从 01:00 的 2303 线性增长至 09:30 的 2555，呈现非自然的恒定斜率。",
    "多个房间 (Living, Kitchen, Kids) 同时出现相同模式的异常读数，表明可能是系统级校准失效或普遍性漂移。",
    "在无人活动 (Occupancy=0) 的情况下，温度持续单调上升，缺乏正常的热平衡波动特征。"
  ],
  "recommended_actions": [
    "立即检查并重置客厅、厨房及儿童房的温度传感器，尝试恢复出厂设置或重新配对。",
    "查看设备固件版本，确认是否存在已知的温度测量 Bug 并进行升级。",
    "使用独立温度计手动测量各房间实际温度，验证传感器读数准确性。",
    "暂时禁用基于这些温度数据的自动化场景（如自动开空调），直至数据恢复正常。"
  ]
}
```


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, living_room_temp_sensor
- 已选事件数: 110

## 设备事件日志
[2026-07-20T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-20T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-20T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-20T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-20T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-20T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-20T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-20T10:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T10:03:30] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:07:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-20T10:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-20T10:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-20T10:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-20T10:31:09] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-20T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-20T10:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T10:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-20T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-20T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T11:03:30] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:07:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-20T11:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-20T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-20T11:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-20T11:31:09] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-20T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-20T11:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T11:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-20T11:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-20T12:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T12:03:30] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:07:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-20T12:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-20T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-20T12:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-20T12:31:09] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-20T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-20T12:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-20T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-20T13:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T13:00:00] living_room_ac | OnOff.OnOff = True
[2026-07-20T13:03:30] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T13:07:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-20T13:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2492
[2026-07-20T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2840
[2026-07-20T13:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-20T13:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-20T13:31:09] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T13:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2487
[2026-07-20T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2720
[2026-07-20T13:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-20T13:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T13:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-20T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-07-20T13:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2610
[2026-07-20T14:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T14:03:30] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:07:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-07-20T14:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2467
[2026-07-20T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-07-20T14:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-20T14:31:09] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-20T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-20T14:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-20T14:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-20T15:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T15:03:30] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T15:07:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T15:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-07-20T15:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-20T15:30:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-07-20T15:31:09] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T15:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-20T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-20T15:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T15:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2414
[2026-07-20T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-20T16:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T16:03:30] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T16:07:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-20T16:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-20T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-20T16:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T16:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-20T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-20T16:40:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-20T16:43:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T16:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T16:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-20T16:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-20T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-20T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-20T18:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T18:10:28] living_room_ac | Thermostat.SystemMode = 3
[2026-07-20T18:25:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T18:55:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T19:25:08] 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: 正常样本空调开启后温度逐步下降；异常样本持续不降反升。"
  ],
  "key_evidence": [
    "正常样本空调开启后温度逐步下降；异常样本持续不降反升。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器在空调开启后出现严重的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: 在 2026-07-20T13:00:00，系统检测到 living_room_ac 开启 (OnOff.OnOff = True)，此时客厅温度传感器报告值为 2485 (约 24.85°C)，符合常理。",
    "推理步骤 2: 随后在 2026-07-20T13:15:00，仅过去 15 分钟，同一传感器读数突然飙升至 2840 (约 28.40°C)，且后续在 13:35:00 再次异常跳变为 2720 (约 27.20°C)。",
    "推理步骤 3: 关键矛盾点在于，当空调开启制冷时，房间温度理应下降。然而日志显示，在同一时间段内，厨房、主卧等其他房间的温度传感器读数均在稳步下降（从 25xx 降至 24xx），唯独客厅传感器数值剧烈波动且未随空调运行而降低，这表明该传感器数据不可信，存在严重的硬件故障或通信干扰。"
  ],
  "key_evidence": [
    "2026-07-20T13:00:00 living_room_ac 开启，但 13:15:00 温度读数反常上升至 2840。",
    "同期其他房间（如 kitchen_temp_sensor）温度正常下降，排除了环境温度整体升高的可能性。",
    "living_room_temp_sensor 在 13:15:00 至 13:55:00 期间数值在 2720-2840 之间无规律剧烈跳动，不符合物理降温规律。"
  ],
  "recommended_actions": [
    "立即检查并重新校准客厅温度传感器，或将其从自动化场景（如温控联动）中暂时移除。",
    "联系设备制造商进行固件更新或硬件维修/更换，以排除传感器漂移或损坏风险。",
    "在修复前，建议人工定期手动测量客厅实际温度，以确保环境舒适度及空调控制策略的有效性。"
  ]
}
```


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, living_room_temp_sensor
- 已选事件数: 133

## 设备事件日志
[2026-07-29T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-29T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-29T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-29T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-29T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-07-29T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-29T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-29T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2560
[2026-07-29T10:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-29T10:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-29T10:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-29T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-29T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-29T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-29T11:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-29T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-29T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-29T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-29T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-29T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-29T12:03:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-29T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-07-29T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-29T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-29T12:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-29T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-29T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-29T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-29T13:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-07-29T13:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-29T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2490
[2026-07-29T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2502
[2026-07-29T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-29T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2479
[2026-07-29T13:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-29T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-29T13:51:35] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2469
[2026-07-29T14:03:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T14:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2473
[2026-07-29T14:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-29T14:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-29T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-29T14:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T14:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2459
[2026-07-29T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-07-29T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-29T14:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-29T15:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-29T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-29T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-29T15:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-29T15:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-29T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-29T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-29T15:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-29T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-29T15:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-29T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-29T15:51:35] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2396
[2026-07-29T16:03:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-29T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-29T16:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-29T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-29T16:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T16:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-29T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-29T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-29T16:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-29T17:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-29T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-29T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-07-29T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-29T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2351
[2026-07-29T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-29T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-29T17:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-07-29T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-29T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2228
[2026-07-29T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-29T17:51:35] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-29T18:03:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-29T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-29T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2647
[2026-07-29T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2708
[2026-07-29T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-07-29T18:30:13] entrance_light | OnOff.OnOff = True
[2026-07-29T18:30:33] living_room_ac | Thermostat.SystemMode = 3
[2026-07-29T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2707
[2026-07-29T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2703
[2026-07-29T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2652
[2026-07-29T18:48:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-29T18:50:21] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T18:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-07-29T19:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-29T19:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2190
[2026-07-29T19:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2186
[2026-07-29T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2193
[2026-07-29T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2181
[2026-07-29T19:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-29T19:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-07-29T19:33:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T19:35:21] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T19:54:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-29T19:55:21] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T20:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2270
[2026-07-29T20:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2173
[2026-07-29T20:28:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T20:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2256
[2026-07-29T20:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2159
[2026-07-29T20:48:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T20:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-07-29T21:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2146
[2026-07-29T21:08:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T21:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-29T21:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2160
[2026-07-29T21:28:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T21:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2245
[2026-07-29T21:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2158
[2026-07-29T21:48:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T21:55:00] living_room_light_1 | OnOff.OnOff = False
[2026-07-29T22:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2253
[2026-07-29T22:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2143
[2026-07-29T22:18:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T22:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2258

## 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: 正常样本两房间仍保持接近；异常样本差值突然扩大且只有一侧偏移。"
  ],
  "key_evidence": [
    "正常样本两房间仍保持接近；异常样本差值突然扩大且只有一侧偏移。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在报告了异常高温（约 270°C）后，连续两次返回 None 值，表明设备可能已损坏、断电或通信中断。",
  "reasoning": [
    "推理步骤 1: 分析日志发现，厨房温度传感器 (kitchen_temp_sensor) 在 18:20 至 18:45 期间报告的温度值急剧上升，从正常的 23-24°C 飙升至 2647 (26.47°C) 和 2708 (27.08°C)，随后维持在 2707°C 左右。虽然 27°C 对于室内环境来说偏高但并非不可能（如极端天气或故障空调），但结合后续数据看存在疑点。",
    "推理步骤 2: 关键异常出现在 18:48:00，该传感器上报的 MeasuredValue 变为 'None'。紧接着在 19:54:00 再次上报 'None'。这种从具体数值突然变为空值（None）的模式，通常意味着传感器硬件故障、电池耗尽、连接断开或固件崩溃，而非单纯的环境温度变化。",
    "推理步骤 3: 尽管 18:20-18:45 的高温读数本身也可能暗示火灾风险（fire_risk），但由于传感器随后失效（返回 None），我们无法确认高温是否持续或是否导致了火灾。因此，首要且确定的问题是传感器本身的 malfunction（故障/失效），导致安全监控出现盲区。"
  ],
  "key_evidence": [
    "[2026-07-29T18:48:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None",
    "[2026-07-29T19:54:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None"
  ],
  "recommended_actions": [
    "立即检查厨房烟雾报警器 (smoke_co_alarm) 的状态，确保其正常工作以弥补温度传感器的缺失。",
    "手动检查厨房是否有过热迹象、烟味或异常气味。",
    "联系技术支持或更换厨房温度传感器，并检查其电源连接和 Matter 网络状态。"
  ]
}
```


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: bedroom_temp_sensor, living_room_temp_sensor
- 已选事件数: 134

## 设备事件日志
[2026-07-07T00:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-07T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-07T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-07T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-07T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-07T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-07T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-07T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-07T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-07T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-07T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-07T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-07T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-07T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-07T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-07T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-07T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-07T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-07T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-07T12:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:07:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-07T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-07T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-07T12:29:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:32:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-07T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-07T12:42:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:47:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-07T13:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-07T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-07T13:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:12:07] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-07T13:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-07-07T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-07T13:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:37:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-07T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-07T13:56:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-07-07T14:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-07T14:14:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:17:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:21:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-07T14:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-07-07T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-07T14:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:46:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-07T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-07T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-07T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-07T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-07T15:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:11:32] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T15:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2424
[2026-07-07T15:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-07T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-07T15:34:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:41:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T15:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-07T15:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-07T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-07-07T15:59:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:06:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-07T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-07T16:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:31:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-07T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-07T16:49:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:52:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T16:56:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-07T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2580
[2026-07-07T17:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-07T17:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2361
[2026-07-07T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2252
[2026-07-07T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-07T17:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-07T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-07-07T17:46:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T17:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-07T18:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2232
[2026-07-07T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-07T18:11:32] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-07T18:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-07T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-07T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-07T18:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:41:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-07T18:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2187
[2026-07-07T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-07-07T19:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:06:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-07T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2185
[2026-07-07T19:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-07T19:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:31:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:36:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2172
[2026-07-07T19:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-07T19:55:00] kitchen_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。

{
  "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: 正常样本两房间仍保持接近；异常样本差值突然扩大且只有一侧偏移。"
  ],
  "key_evidence": [
    "正常样本两房间仍保持接近；异常样本差值突然扩大且只有一侧偏移。"
  ],
  "recommended_actions": [
    "继续监测，无需立即处置。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "卧室温度传感器读数出现严重漂移，显示极低温度（约 -10°C），与客厅及厨房的高温环境（约 25°C）及住户在室内活动的逻辑完全矛盾。",
  "reasoning": [
    "推理步骤 1: 分析时间线与环境一致性。日志显示从中午 12:00 到下午 17:00，厨房和客厅的温度传感器读数稳定在 24°C-26°C (2400-2600 mK) 之间，且多个房间（厨房、客厅、玄关）频繁检测到人员活动（Occupancy=1），表明房屋内部处于正常居住状态，环境温度应均匀且舒适。",
    "推理步骤 2: 识别异常数据模式。卧室温度传感器（bedroom_temp_sensor）在 12:20 至 17:00 期间持续报告数值在 2172-2429 mK (-10°C 左右)，而同一时间段内其他区域温度为正值。这种跨房间的极端温差在密闭住宅中物理上不可能存在，除非传感器故障或校准失效。",
    "推理步骤 3: 结合用户画像评估风险。住户为独居老人，若系统误判卧室温度过低并触发空调制热或报警，可能导致老人因设备错误响应而受冻；反之，若该传感器用于健康监测（如通过体温推断），其错误读数将导致对老人健康状况的误判。鉴于数据与其他所有传感器及常识严重冲突，判定为传感器漂移/故障。"
  ],
  "key_evidence": [
    "卧室温度传感器在 17:00 报告 2231 mK (-10.14°C)，而仅 1 小时前的 16:45 客厅温度为 2368 mK (9.54°C)，两者温差超过 20°C，违背热力学常识。",
    "在卧室温度异常期间（12:20-17:00），厨房和客厅多次检测到人员活动，证明屋内有人且环境温暖，排除了全屋极寒的可能性。"
  ],
  "recommended_actions": [
    "立即标记 bedroom_temp_sensor 为‘故障’或‘需维护’状态，并在智能家居系统中暂时屏蔽其温度读数，防止基于此数据的自动化控制（如开启暖气）造成能源浪费或设备损坏。",
    "通知住户或其监护人检查卧室温度传感器是否被遮挡、电池电量不足或硬件损坏，并尽快安排更换或重新校准。"
  ]
}
```