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: SQ4
- 重点房间: living_room
- 重点设备: bedroom_light, bedroom_occupancy, front_door_contact
- 已选事件数: 98

## 跨天活动摘要
- 2026-08-01: living_room=192, bedroom=207, bathroom=60, kitchen=14, entrance=4

## 设备事件日志
[2026-08-01T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-01T08:43:02] bedroom_light | OnOff.OnOff = True
[2026-08-01T09:58:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T12:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T15:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-08-01T16:22:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T16:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T16:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-08-01T16:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-01T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-08-01T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2377
[2026-08-01T16:42:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T16:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2378
[2026-08-01T16:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-08-01T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-01T17:02:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T17:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-08-01T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-01T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-08-01T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-08-01T17:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-01T17:20:13] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-01T17:22:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T17:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-08-01T17:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-08-01T17:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-08-01T17:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-08-01T17:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-08-01T17:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-08-01T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-01T17:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-08-01T17:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-08-01T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-08-01T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-08-01T17:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-08-01T17:42:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T17:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T17:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-01T17:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2232
[2026-08-01T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-08-01T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-01T17:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-08-01T17:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-01T17:50:13] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-01T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-08-01T17:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-08-01T17:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-08-01T17:57:00] kitchen_light | OnOff.OnOff = True
[2026-08-01T17:57:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-01T17:58:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-01T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-08-01T18:02:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T18:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-08-01T18:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2221
[2026-08-01T18:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-01T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-01T18:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2227
[2026-08-01T18:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-08-01T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2320
[2026-08-01T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2211
[2026-08-01T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-01T18:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-08-01T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-01T18:20:00] front_door_contact | BooleanState.StateValue = False
[2026-08-01T18:20:13] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-01T18:21:00] bedroom_light | OnOff.OnOff = True
[2026-08-01T18:22:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T18:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T18:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-01T18:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-08-01T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-01T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-08-01T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2208
[2026-08-01T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-08-01T18:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-08-01T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-01T18:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-01T18:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2199
[2026-08-01T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-01T18:42:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T18:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-01T18:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2205
[2026-08-01T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-08-01T18:47:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-01T18:47:10] kitchen_dishwasher | OnOff.OnOff = True
[2026-08-01T18:47:15] kitchen_dishwasher | OperationalState.OperationalState = 1
[2026-08-01T18:47:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-08-01T18:48:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-01T18:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2306
[2026-08-01T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2204
[2026-08-01T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-01T18:50:13] bathroom_occupancy | OccupancySensing.Occupancy = 0

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "回家后跳过常规过渡行为直接进卧室",
  "reasoning": [
    "推理步骤1: 入户后缺少常见过渡动作",
    "推理步骤2: 直接切到卧室活动",
    "推理步骤3: 偏离既往居家路径"
  ],
  "key_evidence": [
    "入户后缺少常见过渡动作",
    "直接切到卧室活动",
    "偏离既往居家路径"
  ],
  "recommended_actions": [
    "判定为行为模式异常，建议结合其他迹象评估状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "intrusion",
  "threat_description": "检测到入户门在住户仍在室内（卧室和客厅均有活动）的情况下被打开，存在非法闯入或尾随风险。",
  "reasoning": [
    "时间线分析：在 2026-08-01T18:20:00，日志显示 front_door_contact 状态变为 False（门被打开）。",
    " occupancy 状态验证：在门打开的同时及之后的一段时间内（直到 18:42），bedroom_occupancy 持续报告为 1（有人），且 living_room_occupancy 在 18:02、18:22、18:42 多次报告为 1。这表明住户并未离开房屋。",
    "行为逻辑冲突：正常情况下，如果住户开门外出，卧室和客厅的占用传感器应随后变为 0。然而，在门开启期间，室内人员活动依然活跃（例如 18:21 卧室灯开启，18:47 厨房洗碗机启动），这强烈暗示有第二人进入或在门外操作门锁后未完全离开/尾随进入，或者门锁被远程/物理强制打开而住户不知情。考虑到住户仍在室内，最可能的解释是发生了未经授权的进入尝试（Tailgating 或 Intrusion）。",
    "后续活动佐证：门开后不久（18:47），厨房设备开始运作，说明屋内生活如常，进一步确认了“人在屋内”的状态，排除了住户正常出门买菜等场景。"
  ],
  "key_evidence": [
    "[2026-08-01T18:20:00] front_door_contact | BooleanState.StateValue = False (Door Opened)",
    "[2026-08-01T18:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1 (Occupant Present)",
    "[2026-08-01T18:22:00] living_room_occupancy | OccupancySensing.Occupancy = 1 (Occupant Present)"
  ],
  "recommended_actions": [
    "立即检查入户门锁的物理状况，确认是否存在机械故障或被破坏的痕迹。",
    "查看家庭监控摄像头（如有）在 18:20 前后的录像，确认是否有陌生人进入或尾随行为。",
    "联系住户核实当时是否有人陪同开门，或是否遭遇了胁迫/欺骗。",
    "建议暂时将门锁设置为更严格的访问控制模式，并检查 Matter 协议下的锁具权限设置，确保无异常远程解锁记录。"
  ]
}
```


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: SQ3
- 重点房间: living_room
- 重点设备: living_room_light_1
- 已选事件数: 98

## 跨天活动摘要
- 2026-08-26: living_room=117, bedroom=219, bathroom=56, entrance=14, kitchen=8

## 设备事件日志
[2026-08-26T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-08-26T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-08-26T17:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-08-26T17:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-26T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-08-26T17:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-08-26T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2329
[2026-08-26T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-08-26T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-08-26T18:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-26T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-08-26T18:05:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T18:05:26] living_room_light_1 | OnOff.OnOff = True
[2026-08-26T18:05:35] living_room_ac | OnOff.OnOff = True
[2026-08-26T18:05:35] living_room_ac | Thermostat.SystemMode = 3
[2026-08-26T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-08-26T18:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-08-26T18:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-26T18:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-26T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2218
[2026-08-26T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-26T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-08-26T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-26T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-26T18:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2211
[2026-08-26T18:25:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T18:28:04] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-26T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-26T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2205
[2026-08-26T18:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-26T18:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-26T18:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2217
[2026-08-26T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-08-26T18:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-08-26T18:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2204
[2026-08-26T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-08-26T18:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-08-26T18:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2199
[2026-08-26T18:45:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T18:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-08-26T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-08-26T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-26T18:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-26T18:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-08-26T18:58:04] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-26T19:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2202
[2026-08-26T19:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-26T19:00:00] living_room_light_1 | OnOff.OnOff = True
[2026-08-26T19:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-26T19:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2197
[2026-08-26T19:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-26T19:05:00] living_room_light_1 | OnOff.OnOff = False
[2026-08-26T19:05:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T19:08:00] kitchen_light | OnOff.OnOff = True
[2026-08-26T19:08:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-26T19:09:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-26T19:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-26T19:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2183
[2026-08-26T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-08-26T19:10:00] living_room_light_1 | OnOff.OnOff = True
[2026-08-26T19:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T19:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-08-26T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2178
[2026-08-26T19:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-26T19:15:00] living_room_light_1 | OnOff.OnOff = False
[2026-08-26T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-08-26T19:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2609
[2026-08-26T19:20:00] living_room_light_1 | OnOff.OnOff = True
[2026-08-26T19:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2179
[2026-08-26T19:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2672
[2026-08-26T19:25:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T19:28:04] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-26T19:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-08-26T19:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2191
[2026-08-26T19:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2683
[2026-08-26T19:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T19:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-08-26T19:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2170
[2026-08-26T19:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2676
[2026-08-26T19:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-08-26T19:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2171
[2026-08-26T19:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2671
[2026-08-26T19:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-08-26T19:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2168
[2026-08-26T19:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2631
[2026-08-26T19:45:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T19:47:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-26T19:47:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-08-26T19:48:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-26T19:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-08-26T19:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2173
[2026-08-26T19:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2594
[2026-08-26T19:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-26T19:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2172
[2026-08-26T19:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2560

## 任务
以下是过去一段时间的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "设备使用频率突然翻倍",
  "reasoning": [
    "推理步骤1: 同一设备短时间高频重复使用",
    "推理步骤2: 频率显著高于普通居家行为",
    "推理步骤3: 更像异常强迫式操作"
  ],
  "key_evidence": [
    "同一设备短时间高频重复使用",
    "频率显著高于普通居家行为",
    "更像异常强迫式操作"
  ],
  "recommended_actions": [
    "标记为异常设备交互模式，建议持续观察。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "厨房灶具开启后温度异常飙升且传感器数据丢失，伴随窗户关闭，存在严重火灾风险。",
  "reasoning": [
    "推理步骤 1: 在 19:08:30 厨房灶具 (cook_surface) 被开启，随后从 19:10:00 开始，厨房温度传感器读数呈现非正常的指数级增长（从 2484 升至 2683），远超正常烹饪升温速率，且数值单位疑似为毫开尔文或原始编码而非摄氏度，表明设备可能处于过热或故障状态。",
    "推理步骤 2: 关键的安全缓解措施失效：在温度急剧上升期间（19:47:00 关闭灶具前），厨房窗户传感器 (kitchen_window_contact) 于 19:47:30 报告关闭 (False)，这意味着如果发生火情，烟雾无法通过窗户排出，且室内热量积聚速度会更快。",
    "推理步骤 3: 传感器数据异常：在最高温时刻及之后，厨房温度传感器多次返回 None (19:09:00, 19:48:00)，这通常意味着传感器因高温损坏、电路熔断或通信中断，导致安全监控系统失去对火情的感知能力，构成了严重的次生安全隐患。"
  ],
  "key_evidence": [
    "19:08:30 开启灶具后，厨房温度在 5 分钟内从 2484 飙升至 2683。",
    "19:47:30 厨房窗户传感器显示关闭 (StateValue = False)，阻碍了潜在烟雾的扩散。",
    "19:09:00 和 19:48:00 厨房温度传感器返回 None，指示传感器可能已因高温损坏或离线。"
  ],
  "recommended_actions": [
    "立即前往厨房检查是否有明火、浓烟或焦糊味，并确认灶具是否已完全熄灭。",
    "检查厨房温度传感器是否物理损坏，如有必要立即更换以确保监控恢复。",
    "测试厨房烟雾报警器功能是否正常，确保其未被高温损坏。",
    "建议暂时不要在该时段独自进行高风险烹饪操作，直到设备状态稳定。"
  ]
}
```


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: SQ4
- 重点房间: living_room
- 重点设备: bedroom_occupancy, living_room_occupancy
- 已选事件数: 132

## 跨天活动摘要
- 2026-07-29: living_room=209, bedroom=242, kitchen=238, entrance=230, bathroom=60
- 2026-07-30: living_room=212, bedroom=240, kitchen=238, entrance=230, bathroom=60
- 2026-07-31: living_room=209, bedroom=242, kitchen=241, entrance=230, bathroom=60

## 设备事件日志
[2026-07-29T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T06:01:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T06:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T06:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-29T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-29T07:00:00] kitchen_light | OnOff.OnOff = False
[2026-07-29T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T07:00:07] front_door_contact | BooleanState.StateValue = False
[2026-07-29T07:00:13] front_door_lock | DoorLock.LockState = 1
[2026-07-29T07:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-07-29T07:06:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-29T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-29T07:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-29T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-29T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-29T07:31:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T07:35:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-29T07:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-29T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-29T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-29T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:00:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2427
[2026-07-29T08:06:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-29T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-29T08:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-29T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-29T08:31:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-29T08:35:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:37:15] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T08:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-29T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-29T08:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-29T08:56:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:00:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-29T09:20:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-29T09:40:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-29T14:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T06:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-07-30T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-30T06:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T06:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-30T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-30T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-30T07:22:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-30T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-07-30T07:31:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T07:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-30T07:37:45] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-30T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-30T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-30T07:47:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-30T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-30T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-30T08:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:06:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-30T08:12:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-30T08:15:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-30T08:22:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-30T08:22:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-30T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-30T08:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:36:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-30T08:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-30T08:52:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-30T08:59:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:01:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-30T09:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-30T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-30T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-30T09:27:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-30T09:47:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T09:54:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-30T10:07:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T10:14:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-30T23:45:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T06:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-31T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-31T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-07-31T06:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T06:59:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-31T07:07:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-31T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-31T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-31T07:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:25:05] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-31T07:32:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-31T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-31T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-31T07:51:19] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T07:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-31T07:59:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-31T08:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:07:08] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "连续多天不使用厨房",
  "reasoning": [
    "推理步骤1: 多天都有居家活动",
    "推理步骤2: 却始终没有厨房使用线索",
    "推理步骤3: 可能反映生活能力或情绪异常"
  ],
  "key_evidence": [
    "多天都有居家活动",
    "却始终没有厨房使用线索",
    "可能反映生活能力或情绪异常"
  ],
  "recommended_actions": [
    "判定为连续行为缺失异常，建议结合住户状态评估。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "客厅温度传感器报告的数据严重偏离物理现实（数值在 2400-2500+），表明传感器故障或校准错误，导致无法准确监测室内环境及潜在的火灾/过热风险。",
  "reasoning": [
    "数据合理性分析：日志中 `living_room_temp_sensor` 和 `kitchen_temp_sensor` 报告的 `MeasuredValue` 数值高达 2498、2544 等。考虑到 Matter 协议通常使用毫开尔文 (mK) 作为单位，这些数值换算后约为 2.5°C 至 2.5°C（若单位为 mK 则对应约 2.5°C，但这对于夏季白天且有人活动的房间来说过低；若设备配置错误直接上报了原始 ADC 值或其他未转换的整数，则完全无意义）。更可能的情况是，传感器发生了严重的读数漂移或固件 bug，输出了非物理意义的巨大数值（例如本应是 25°C 却报成了 2500+）。",
    "行为模式矛盾：尽管日志显示住户在客厅 (`living_room_occupancy`) 和厨房 (`kitchen_occupancy`) 有频繁的活动记录（如做饭、走动），但温度传感器并未反映正常的室温变化趋势（通常随人体活动略有上升或随空调调节而变化），而是持续输出异常的高位数值。这种‘有人活动’与‘温度数据异常’的不匹配是典型的传感器故障特征。",
    "风险评估：对于独居老人家庭，准确的温度监测至关重要。如果该传感器用于联动空调或烟雾报警器的逻辑判断，其故障可能导致在真实高温或火灾初期无法触发警报，或者错误地触发警报造成恐慌。鉴于涉及独居老人，任何感知设备的失效都属于高风险事件。"
  ],
  "key_evidence": [
    "[2026-07-29T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498",
    "[2026-07-30T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550",
    "住户在客厅和厨房有明确的 Occupancy=1 活动记录，但温度读数未呈现合理的动态变化，而是维持在异常高位。"
  ],
  "recommended_actions": [
    "立即检查并重置客厅和厨房的温度传感器，查看是否恢复正常运行。",
    "联系设备制造商或技术支持，确认是否存在固件 Bug 或硬件损坏，必要时申请更换新传感器。",
    "在修复前，建议人工定期手动测量室温，确保老人生活环境的安全舒适。",
    "检查其他依赖温度数据的自动化场景（如空调控制、烟雾报警联动）是否已暂时禁用或调整阈值，防止误操作。"
  ]
}
```


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

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

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

## 家庭环境信息
家庭布局: 两室一厅 (2BR)
- 重点房间 living_room: 客厅主灯[dimmable_light], 客厅落地灯[onoff_light], 客厅空调[air_conditioner], 客厅温度传感器[temperature_sensor], 客厅运动传感器[occupancy_sensor], 客厅窗帘[window_covering], 客厅窗户传感器[contact_sensor]
- 房间 balcony: 阳台灯[onoff_light], 阳台门传感器[contact_sensor], 洗衣机[laundry_washer]
- 房间 bathroom: 卫生间灯[onoff_light], 卫生间运动传感器[occupancy_sensor], 卫生间漏水传感器[water_leak_detector]
- 房间 entrance: 入户门锁[door_lock], 入户门传感器[contact_sensor], 玄关灯[onoff_light], 玄关运动传感器[occupancy_sensor]
- 房间 kitchen: 厨房灯[onoff_light], 厨房灶具[cook_surface], 厨房烟雾报警器[smoke_co_alarm], 厨房温度传感器[temperature_sensor], 厨房窗户传感器[contact_sensor], 洗碗机[dishwasher]
- 房间 master_bedroom: 主卧灯[dimmable_light], 主卧空调[air_conditioner], 主卧运动传感器[occupancy_sensor], 主卧窗帘[window_covering], 主卧窗户传感器[contact_sensor], 主卧温度传感器[temperature_sensor]
- 房间 second_bedroom: 次卧灯[dimmable_light], 次卧运动传感器[occupancy_sensor], 次卧窗帘[window_covering], 次卧窗户传感器[contact_sensor], 次卧温度传感器[temperature_sensor]

## 已选日志说明
以下日志不是整天原始全量心跳，而是围绕关键设备、关键时间窗和跨天模式筛出的训练片段。
- 任务类型: SQ3
- 重点房间: living_room
- 重点设备: living_room_light_1
- 已选事件数: 89

## 跨天活动摘要
- 2026-08-28: living_room=119, entrance=228, master_bedroom=227, second_bedroom=48, bathroom=48, kitchen=11

## 设备事件日志
[2026-08-28T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-08-28T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-28T17:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T17:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-08-28T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-08-28T17:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-08-28T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-08-28T17:53:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T17:53:12] living_room_light_1 | OnOff.OnOff = True
[2026-08-28T17:53:14] living_room_ac | OnOff.OnOff = True
[2026-08-28T17:53:14] living_room_ac | Thermostat.SystemMode = 3
[2026-08-28T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-08-28T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-08-28T18:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-08-28T18:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-28T18:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2317
[2026-08-28T18:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:13:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:14:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-08-28T18:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-08-28T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-08-28T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-08-28T18:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-28T18:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-28T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-08-28T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-08-28T18:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-08-28T18:25:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-08-28T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-08-28T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-08-28T18:30:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-08-28T18:30:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T18:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T18:31:00] kitchen_light | OnOff.OnOff = True
[2026-08-28T18:31:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-28T18:32:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-28T18:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:33:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:34:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-28T18:35:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-28T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-08-28T18:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-28T18:40:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-28T18:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-08-28T18:45:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-08-28T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-28T18:50:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-08-28T18:50:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-28T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-28T18:51:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-28T18:51:30] kitchen_window_contact | BooleanState.StateValue = False
[2026-08-28T18:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:53:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:54:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-28T18:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-08-28T18:55:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-08-28T18:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-08-28T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-08-28T19:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-08-28T19:00:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-08-28T19:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-08-28T19:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T19:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T19:00:00] living_room_light_1 | OnOff.OnOff = True
[2026-08-28T19:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-28T19:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2297
[2026-08-28T19:05:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-08-28T19:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-08-28T19:05:00] living_room_light_1 | OnOff.OnOff = False
[2026-08-28T19:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-08-28T19:10:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-28T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-08-28T19:10:00] living_room_light_1 | OnOff.OnOff = True
[2026-08-28T19:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:13:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:14:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T19:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-08-28T19:15:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-08-28T19:15:00] living_room_light_1 | OnOff.OnOff = False
[2026-08-28T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-08-28T19:20:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-08-28T19:20:00] second_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-08-28T19:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-08-28T19:20:00] living_room_light_1 | OnOff.OnOff = True
[2026-08-28T19:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2275
[2026-08-28T19:25:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287

## 任务
请从下面的时序日志中分析住户或环境是否出现异常模式，不要只看单个事件。

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "设备使用频率突然翻倍",
  "reasoning": [
    "推理步骤1: 同一设备短时间高频重复使用",
    "推理步骤2: 频率显著高于普通居家行为",
    "推理步骤3: 更像异常强迫式操作"
  ],
  "key_evidence": [
    "同一设备短时间高频重复使用",
    "频率显著高于普通居家行为",
    "更像异常强迫式操作"
  ],
  "recommended_actions": [
    "标记为异常设备交互模式，建议持续观察。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示正常的家庭晚间活动模式，包括人员进出、烹饪准备及空调调节，未发现安全威胁或设备故障。",
  "reasoning": [
    "时间线分析：事件发生在傍晚至晚上（17:20 - 19:25），符合典型的下班回家、做饭和休息的时间段。",
    "行为逻辑验证：入户门传感器（entrance_occupancy）多次检测到有人进入，随后客厅灯（living_room_light_1）和空调（living_room_ac）被开启，且温度设定为制冷模式（SystemMode=3），这与住户回家感到炎热并开启设备的习惯完全一致。",
    "厨房活动合理性：在 18:31 开启灶具（cook_surface），并在约 20 分钟后关闭，期间厨房窗户短暂打开（18:51），这是非常自然的通风和烹饪行为，无异常停留或危险迹象。",
    "设备状态正常：所有传感器读数（温度、占用状态）变化平滑且符合物理规律，未见数据丢失、卡死或逻辑冲突（如无人时灯常亮、门窗未关却有人活动等）。",
    "跨房间联动正常：主卧和次卧的占用状态与温度变化反映了家庭成员在不同房间的合理移动，整体环境处于受控状态。"
  ],
  "key_evidence": [
    "18:13 和 18:33 等时间点 entrance_occupancy 变为 1，紧接着 living_room_light_1 和 living_room_ac 被激活，表明是住户主动回家操作。",
    "18:31-18:51 期间的 kitchen_cook_surface On/Off 序列以及随后的 kitchen_window_contact False 变化，构成了完整的‘开火 - 烹饪 - 通风’闭环。",
    "全时段温度传感器数据连续且数值合理（约 22-23°C），无任何突变或无效值（除一次短暂的 None 外，不影响整体判断）。"
  ],
  "recommended_actions": [
    "无需采取紧急措施，当前系统运行正常。",
    "建议继续保持对关键区域（如厨房烟雾报警器、漏水传感器）的定期维护检查。"
  ]
}
```


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: SQ4
- 重点房间: living_room
- 重点设备: living_room_occupancy, master_bedroom_occupancy
- 已选事件数: 120

## 跨天活动摘要
- 2026-07-09: living_room=113, kids_room=231, master_bedroom=228, entrance=228, master_bathroom=225, dining_room=222
- 2026-07-10: living_room=114, kids_room=232, entrance=232, master_bedroom=231, dining_room=219, master_bathroom=55
- 2026-07-11: living_room=48, master_bedroom=49, dining_room=48, second_bedroom=48, kids_room=48, master_bathroom=48

## 设备事件日志
[2026-07-09T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T06:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-07-09T06:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-09T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-09T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T07:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T07:04:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-09T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-09T07:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-09T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-09T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-09T07:24:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T07:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-09T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-09T07:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-09T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-09T07:35:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-09T07:42:25] kids_room_light | OnOff.OnOff = False
[2026-07-09T07:42:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T07:44:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T07:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-09T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-09T07:54:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-09T07:59:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-09T08:00:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-09T08:10:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-09T08:14:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-09T08:17:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-09T08:20:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:24:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-09T08:29:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-09T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-09T08:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-09T08:44:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:45:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-09T08:47:33] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-09T08:50:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:54:08] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-09T08:59:00] master_bathroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:00:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-09T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-09T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-09T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-09T09:39:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T09:59:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-09T18:39:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T06:17:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T06:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-10T06:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-07-10T06:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2503
[2026-07-10T07:02:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-10T07:18:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-10T07:19:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-10T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-10T07:23:03] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:25:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-10T07:27:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:30:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-10T07:30:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-10T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-10T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-10T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-10T07:50:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T07:53:47] master_bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-10T07:58:03] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:02:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:05:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-10T08:10:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-10T08:15:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-10T08:15:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:22:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-10T08:25:00] kids_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-10T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T08:32:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:35:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-10T08:40:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T08:45:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-10T08:50:00] kids_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-10T08:52:23] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T08:55:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-10T08:57:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:00:00] master_bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-10T09:00:00] second_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T09:03:03] dining_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-10T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-10T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-10T09:22:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T09:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-10T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-10T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-10T10:07:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T11:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T06:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-07-11T06:30:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-07-11T07:00:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-11T07:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-07-11T08:05:00] master_bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
请综合以下多个设备与环境状态，评估家庭整体安全状况，指出任何潜在风险。

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "连续多天不使用厨房",
  "reasoning": [
    "推理步骤1: 多天都有居家活动",
    "推理步骤2: 却始终没有厨房使用线索",
    "推理步骤3: 可能反映生活能力或情绪异常"
  ],
  "key_evidence": [
    "多天都有居家活动",
    "却始终没有厨房使用线索",
    "可能反映生活能力或情绪异常"
  ],
  "recommended_actions": [
    "判定为连续行为缺失异常，建议结合住户状态评估。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_drift",
  "threat_description": "客厅温度传感器报告的温度值（24.88°C - 25.51°C）与厨房、儿童房等其他房间传感器读数（约 25.0°C - 25.5°C，换算后一致）相比存在显著且持续的偏差，表明该传感器可能发生故障或校准漂移。",
  "reasoning": [
    "数据单位分析：日志中所有温度传感器的 MeasuredValue 均在 2400-2600 范围内，符合 Matter 协议中温度通常以 0.01°C 为单位的编码习惯（即实际温度为 24.88°C - 25.51°C）。",
    "跨设备一致性检查：在 2026-07-09 至 2026-07-10 期间，厨房 (kitchen)、儿童房 (kids_room) 和主卧 (master_bedroom) 的温度传感器读数高度一致，均显示室内温度在 25.0°C 至 25.5°C 之间波动，反映了正常的日间升温趋势。",
    "异常模式识别：相比之下，客厅温度传感器 (living_room_temp_sensor) 在同一时间段内持续报告略低的数值（主要在 24.88°C - 25.39°C 区间），且其变化曲线与其他房间不同步。例如在 07:40 时，其他房间已升至 25.3°C+，而客厅仍停留在 25.31°C；在 08:50 达到峰值 25.51°C 时，厨房仅为 25.35°C。这种系统性的偏低读数无法用正常的环境温差解释，极大概率是传感器硬件故障或校准失效导致的漂移。",
    "排除误报：虽然入户门和玄关的 occupancy 状态频繁切换（0->1->0->1），但结合时间戳（早晨 7:00-9:00）和跨天摘要（entrance 事件数高达 228/232），这符合家庭成员进出家门及宠物活动的正常行为模式，并非入侵迹象。"
  ],
  "key_evidence": [
    "2026-07-09T06:20:00 living_room_temp_sensor 报告 24.88°C，而同期 kitchen_temp_sensor 尚未有有效读数，后续 kitchen 稳定在 25.0°C 以上。",
    "2026-07-09T08:50:00 living_room_temp_sensor 报告 25.51°C，此时 kids_room_temp_sensor 为 25.42°C，master_bedroom_temp_sensor 为 25.36°C，客厅读数虽接近但未出现应有的同步峰值，且整体基线偏低。",
    "2026-07-10T09:40:00 living_room_temp_sensor 报告 25.58°C，而同一时段 kitchen_temp_sensor 为 25.43°C，两者差距缩小但仍存在系统性偏差。"
  ],
  "recommended_actions": [
    "立即检查客厅温度传感器的物理连接和供电情况，确认是否因电池电量不足或接触不良导致读数异常。",
    "尝试重置客厅温度传感器并重新校准，若问题依旧，建议更换新传感器以确保家庭环境监控数据的准确性。",
    "暂时依赖其他房间的温度传感器作为客厅温度的参考依据，直到故障设备被修复。"
  ]
}
```


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: SQ3
- 重点房间: living_room
- 重点设备: bedroom_occupancy, living_room_occupancy
- 已选事件数: 118

## 跨天活动摘要
- 2026-08-03: living_room=209, bedroom=241, kitchen=240, entrance=229, bathroom=58
- 2026-08-04: living_room=211, bedroom=242, kitchen=239, entrance=231, bathroom=61
- 2026-08-05: living_room=210, bedroom=241, kitchen=239, entrance=231, bathroom=61

## 设备事件日志
[2026-08-03T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T06:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-08-03T06:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T06:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T07:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T07:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-08-03T07:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T07:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-03T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-03T07:22:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T07:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-03T07:29:12] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-08-03T07:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T07:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-03T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-03T07:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-03T07:54:12] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T07:56:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-03T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-03T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-03T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-03T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-03T08:22:16] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-03T08:29:12] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-03T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-03T08:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-03T08:44:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-03T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-03T09:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:19:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-03T09:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-03T09:39:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T06:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-04T06:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-08-04T07:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-04T07:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T07:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-04T07:26:33] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T07:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-04T07:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T07:36:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T07:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-04T07:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-04T07:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T07:56:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-04T08:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-04T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-04T08:15:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:21:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:25:00] front_door_lock | DoorLock.LockState = 2
[2026-08-04T08:25:02] front_door_contact | BooleanState.StateValue = False
[2026-08-04T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-04T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-04T08:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-04T08:45:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-04T08:51:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-08-04T08:56:33] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-04T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-04T09:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:05:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-04T09:25:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-04T09:45:08] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T09:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-04T23:48:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T06:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-05T06:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T06:58:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-08-05T07:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-05T07:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-08-05T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-08-05T07:25:48] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T07:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-05T07:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-05T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-05T07:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T07:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-08-05T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-05T07:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-05T07:59:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-05T08:05:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-05T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-05T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-05T08:25:48] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-05T08:29:02] front_door_contact | BooleanState.StateValue = False
[2026-08-05T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-05T08:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-05T08:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:44:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:45:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-05T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-05T08:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
以下是过去 3 天的设备活动记录。请识别其中是否存在可疑行为模式，并解释你的判断。

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "连续多天不使用厨房",
  "reasoning": [
    "推理步骤1: 多天都有居家活动",
    "推理步骤2: 却始终没有厨房使用线索",
    "推理步骤3: 可能反映生活能力或情绪异常"
  ],
  "key_evidence": [
    "多天都有居家活动",
    "却始终没有厨房使用线索",
    "可能反映生活能力或情绪异常"
  ],
  "recommended_actions": [
    "判定为连续行为缺失异常，建议结合住户状态评估。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "intrusion",
  "threat_description": "检测到疑似入侵行为：在住户正常外出期间，入户门被非法开启（接触传感器触发），且随后有人员进入玄关并活动。",
  "reasoning": [
    "推理步骤 1: 分析 2026-08-04 和 2026-08-05 的时间线。在 08:25 (8/04) 和 08:29 (8/05)，front_door_contact 状态变为 False，表明有人打开了入户门。",
    "推理步骤 2: 结合上下文判断开门性质。此时卧室 occupancy 为 1 (有人)，但 living_room_occupancy 在开门瞬间及之后短时间内为 0 (例如 8/04 08:25 时客厅无人，8/05 08:30 时客厅无人)。如果是住户正常出门，通常会有离开卧室或前往玄关的动作导致客厅/卧室 occupancy 变化，或者开门后紧接着看到客厅有人活动。",
    "推理步骤 3: 关键异常点在于开门后的活动模式。在 8/04 08:25 开门后，entrance_occupancy 在 08:40 才变为 1，中间存在约 15 分钟的空白期；而在 8/05 08:29 开门后，entrance_occupancy 在 08:39 变为 1。更可疑的是，在 8/05 08:00 左右，living_room_occupancy 曾短暂归零，随后 08:29 开门，08:44 客厅再次有人。这种‘屋内有人 -> 门被打开 -> 屋内无人/状态不明 -> 外人进入’的模式，高度符合尾随 (tailgating) 或强行闯入后潜入的特征，尤其是对于独居老人家庭，非预期的门开启是最高风险事件。",
    "推理步骤 4: 排除误报。虽然可能是住户开门，但日志中缺乏明确的‘住户出门’序列（如先离开卧室再开灯出门），且两次事件发生在极短的时间窗口内（间隔不到 24 小时），增加了重复作案或持续威胁的可能性。"
  ],
  "key_evidence": [
    "2026-08-04T08:25:00 front_door_contact StateValue=False (门被打开)",
    "2026-08-05T08:29:02 front_door_contact StateValue=False (门再次被打开)",
    "开门前后 living_room_occupancy 与 entrance_occupancy 的状态转换逻辑不符合常规住户出行习惯（如开门后无立即的室内人员移动记录）"
  ],
  "recommended_actions": [
    "立即联系独居老人确认其安全状况及是否遭遇入侵。",
    "检查入户门锁的物理状态，确认是否存在机械故障或被破坏的痕迹。",
    "建议升级门锁系统，启用防尾随功能或更换为带有远程监控和即时报警的智能锁。",
    "通知当地警方备案，特别是考虑到连续两天发生类似事件。"
  ]
}
```


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: SQ4
- 重点房间: living_room
- 重点设备: bedroom_light, bedroom_occupancy, front_door_contact
- 已选事件数: 130

## 跨天活动摘要
- 2026-07-10: living_room=111, bedroom=74, bathroom=52, entrance=15, kitchen=8

## 设备事件日志
[2026-07-10T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T05:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T06:27:02] bedroom_light | OnOff.OnOff = True
[2026-07-10T07:27:02] bedroom_light | OnOff.OnOff = False
[2026-07-10T07:27:24] front_door_contact | BooleanState.StateValue = False
[2026-07-10T07:27:29] front_door_contact | BooleanState.StateValue = True
[2026-07-10T08:47:10] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T14:17:10] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-10T16:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-07-10T16:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-10T16:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-10T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-10T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-10T16:47:10] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T16:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-10T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-10T17:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-10T17:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-10T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-10T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-07-10T17:17:10] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-10T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-07-10T17:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-10T17:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-10T17:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-07-10T17:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-10T17:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-10T17:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2243
[2026-07-10T17:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2345
[2026-07-10T17:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T17:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2246
[2026-07-10T17:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-10T17:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-10T17:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-07-10T17:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-07-10T17:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-10T17:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2235
[2026-07-10T17:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-10T17:46:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T17:47:10] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T17:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-10T17:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-10T17:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-10T17:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-07-10T17:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2328
[2026-07-10T18:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-10T18:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-07-10T18:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-10T18:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T18:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-10T18:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2229
[2026-07-10T18:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-10T18:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-10T18:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-10T18:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-10T18:12:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-10T18:12:00] front_door_lock | DoorLock.LockState = 2
[2026-07-10T18:12:02] front_door_contact | BooleanState.StateValue = False
[2026-07-10T18:12:16] entrance_light | OnOff.OnOff = True
[2026-07-10T18:12:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T18:12:26] living_room_light_1 | OnOff.OnOff = True
[2026-07-10T18:12:32] living_room_ac | OnOff.OnOff = True
[2026-07-10T18:12:32] living_room_ac | Thermostat.SystemMode = 3
[2026-07-10T18:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-10T18:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-07-10T18:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2575
[2026-07-10T18:16:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T18:17:10] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T18:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-10T18:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-07-10T18:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2648
[2026-07-10T18:20:00] front_door_contact | BooleanState.StateValue = False
[2026-07-10T18:21:00] bedroom_light | OnOff.OnOff = True
[2026-07-10T18:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T18:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-10T18:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-07-10T18:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2694
[2026-07-10T18:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-10T18:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2218
[2026-07-10T18:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2716
[2026-07-10T18:32:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T18:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2315
[2026-07-10T18:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2204
[2026-07-10T18:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2715
[2026-07-10T18:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-10T18:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2211
[2026-07-10T18:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2699
[2026-07-10T18:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2302
[2026-07-10T18:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2196
[2026-07-10T18:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2672
[2026-07-10T18:46:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T18:47:10] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T18:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2289
[2026-07-10T18:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2189
[2026-07-10T18:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2621
[2026-07-10T18:52:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T18:53:00] kitchen_light | OnOff.OnOff = True
[2026-07-10T18:53:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-10T18:54:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-10T18:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-10T18:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2190
[2026-07-10T18:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2571
[2026-07-10T19:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-10T19:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2185
[2026-07-10T19:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-10T19:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-10T19:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2182
[2026-07-10T19:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2484
[2026-07-10T19:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-10T19:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-10T19:12:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T19:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-10T19:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2198
[2026-07-10T19:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-10T19:16:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T19:17:10] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T19:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-10T19:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2193
[2026-07-10T19:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-10T19:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-10T19:32:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-10T19:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-10T19:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-10T19:47:10] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-10T19:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-10T19:52:20] living_room_occupancy | OccupancySensing.Occupancy = 1

## 任务
你将看到一组跨设备日志。请做综合安全分析，而不是单点判断。

请按以下 JSON 格式回答：

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

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

{
  "is_anomaly": true,
  "confidence": "medium",
  "threat_type": "behavioral_anomaly",
  "threat_description": "回家后跳过常规过渡行为直接进卧室",
  "reasoning": [
    "推理步骤1: 入户后缺少常见过渡动作",
    "推理步骤2: 直接切到卧室活动",
    "推理步骤3: 偏离既往居家路径"
  ],
  "key_evidence": [
    "入户后缺少常见过渡动作",
    "直接切到卧室活动",
    "偏离既往居家路径"
  ],
  "recommended_actions": [
    "判定为行为模式异常，建议结合其他迹象评估状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器出现严重数据漂移和丢失，导致无法准确监测烹饪安全及火灾风险。",
  "reasoning": [
    "推理步骤 1: 在 18:53 用户开启灶具后，厨房温度传感器读数从正常的约 23-24°C (x10) 开始异常波动，并在短时间内急剧上升至 2575、2694、2716 等数值。考虑到室内环境温度通常在 20-25°C 之间，这些读数（即 25.75°C - 27.16°C）虽然看似合理，但结合后续趋势看存在逻辑矛盾：通常灶具开启会导致局部高温，但传感器随后并未持续上升或报警，反而在 18:54 突然变为 None。",
    "推理步骤 2: 更关键的异常在于数据的非物理性跳跃和缺失。例如在 18:10 读数为 2525 (25.25°C)，18:15 跳至 2575，18:20 跳至 2648，这种阶梯式快速上升不符合热传导规律。最致命的是 18:54 在灶具开启且温度显示极高的情况下，传感器值突变为 `None`，表明设备可能死机、通信中断或电池耗尽，导致关键的安全监控盲区。",
    "推理步骤 3: 对比其他房间，卧室和客厅的温度传感器读数稳定且符合室温特征（~22-23°C），排除了全屋网络故障或环境突变的可能性。因此，问题锁定在厨房温度传感器本身的硬件故障或固件错误，这直接导致了在有人烹饪时无法有效触发烟雾报警器联动或向用户发送高温预警，构成了潜在的火险隐患。"
  ],
  "key_evidence": [
    "2026-07-10T18:54:00 厨房温度传感器在灶具开启期间报告值为 None，造成监控中断。",
    "2026-07-10T18:10:00 至 18:30:00 期间，厨房温度读数呈现不合理的阶梯式剧烈波动（2525 -> 2648 -> 2716），不符合正常热力学变化。",
    "同期卧室和客厅温度传感器数据正常，排除了系统性网络故障。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的电池电量及物理连接状态。",
    "重置厨房温度传感器并重新校准，观察是否恢复正常。",
    "在修复前，建议用户在烹饪时保持人工留意，或暂时手动关闭自动联动功能以防误报/漏报。",
    "若更换电池或重置无效，建议联系厂商维修或更换该传感器。"
  ]
}
```