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: kitchen_light, kitchen_occupancy
- 已选事件数: 137

## 跨天活动摘要
- 2026-07-14: living_room=210, bedroom=242, kitchen=241, entrance=230, bathroom=65

## 设备事件日志
[2026-07-14T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T00:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2278
[2026-07-14T00:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2285
[2026-07-14T00:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2279
[2026-07-14T00:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-07-14T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-14T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-14T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-07-14T00:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-07-14T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2295
[2026-07-14T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2288
[2026-07-14T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-14T01:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2194
[2026-07-14T01:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2296
[2026-07-14T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-14T01:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2209
[2026-07-14T01:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-14T01:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-14T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-07-14T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-14T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2307
[2026-07-14T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2207
[2026-07-14T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-14T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-14T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2222
[2026-07-14T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2305
[2026-07-14T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2318
[2026-07-14T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2216
[2026-07-14T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2312
[2026-07-14T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-14T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2224
[2026-07-14T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-14T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-14T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-14T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2225
[2026-07-14T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-14T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-14T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2229
[2026-07-14T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-14T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2336
[2026-07-14T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-07-14T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-14T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2325
[2026-07-14T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2226
[2026-07-14T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2323
[2026-07-14T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-14T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2228
[2026-07-14T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-14T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2344
[2026-07-14T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2244
[2026-07-14T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-14T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-14T02:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2242
[2026-07-14T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-07-14T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2249
[2026-07-14T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2342
[2026-07-14T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2354
[2026-07-14T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2250
[2026-07-14T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-07-14T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-14T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2248
[2026-07-14T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2343
[2026-07-14T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-14T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-14T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-14T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2353
[2026-07-14T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-07-14T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-14T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-14T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2260
[2026-07-14T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-14T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2268
[2026-07-14T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-14T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-14T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-07-14T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-14T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-14T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-14T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-14T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-14T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-14T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2367
[2026-07-14T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2280
[2026-07-14T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-07-14T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-14T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2287
[2026-07-14T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-14T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-14T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2382
[2026-07-14T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-14T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2292
[2026-07-14T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-14T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-14T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-14T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-14T03:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-14T03:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-07-14T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-14T03:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2303
[2026-07-14T03:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-07-14T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-14T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-14T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-14T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400

## 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": "health_concern",
  "threat_description": "夜间长期停留在非卧室区域",
  "reasoning": [
    "推理步骤1: 深夜在非卧室区域持续活动",
    "推理步骤2: 时长明显超出普通起夜",
    "推理步骤3: 可能是迷路或意识混乱"
  ],
  "key_evidence": [
    "深夜在非卧室区域持续活动",
    "时长明显超出普通起夜",
    "可能是迷路或意识混乱"
  ],
  "recommended_actions": [
    "按老人夜间异常活动处理，建议家属关注。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "fire_risk",
  "threat_description": "厨房温度异常升高且存在无人看管烹饪风险，独居老人夜间活动频繁但厨房长时间处于高温状态。",
  "reasoning": [
    "推理步骤 1: 时间与环境分析。日志显示时间为凌晨 02:10 至 04:10，属于深夜时段。对于独居老人而言，此时段通常应处于睡眠或深度休息状态，不应进行高强度活动。",
    "推理步骤 2: 设备状态异常。厨房运动传感器 (kitchen_occupancy) 在 02:10、02:35、02:50 多次检测到有人 (Occupancy=1)，表明有人在深夜进入厨房。然而，所有房间（包括客厅、卧室）的运动传感器均显示无人 (Occupancy=0)，这极不寻常，暗示可能存在非正常移动路径或传感器盲区，或者老人因健康原因意识模糊/行动不便。",
    "推理步骤 3: 温度数据严重偏离。厨房温度传感器读数从 02:10 的约 23.4°C (2341 mK) 持续攀升至 04:10 的约 24.0°C (2406 mK)。虽然绝对值看似正常，但在无人员活动的情况下（除厨房外全屋无人），厨房温度却呈现持续上升趋势，且伴随厨房灯光开启 (02:50)，强烈暗示灶具可能正在运行但未关闭，或者发生了其他热源事件。考虑到是独居老人，这种深夜独自操作灶具的行为具有极高的火灾和烫伤风险。",
    "推理步骤 4: 综合风险评估。深夜 + 独居老人 + 厨房有人 + 温度持续上升 + 全屋其他区域无人 = 高风险场景。最可能的情况是老人起夜后误开灶具忘记关火，或在厨房内发生跌倒导致无法及时关闭热源。"
  ],
  "key_evidence": [
    "02:10 - 04:10 期间厨房 occupancy 多次为 1，而其他所有房间 occupancy 均为 0。",
    "厨房温度从 23.41°C 持续上升至 24.06°C，且在此期间厨房灯光被打开。",
    "住户为独居老人，深夜出现单人进入厨房且全屋其余区域无人的行为模式不符合常规作息。"
  ],
  "recommended_actions": [
    "立即远程通知监护人或紧急联系人，告知疑似老人深夜在厨房活动及潜在火灾隐患。",
    "尝试通过 Matter 协议远程关闭厨房灶具 (cook_surface) 和厨房灯光，切断热源。",
    "检查烟雾报警器状态，若已触发则启动家庭应急响应预案。",
    "建议后续加强对厨房区域的监控频率，并考虑安装防误触灶具保护盖或智能燃气阀门。"
  ]
}
```


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, front_door_contact, front_door_lock
- 已选事件数: 109

## 跨天活动摘要
- 2026-08-13: living_room=209, bedroom=243, kitchen=238, entrance=233, bathroom=60
- 2026-08-14: living_room=210, bedroom=241, kitchen=237, entrance=230, bathroom=59
- 2026-08-15: living_room=210, bedroom=243, kitchen=239, entrance=230, bathroom=57

## 设备事件日志
[2026-08-13T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-08-13T07:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-08-13T07:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-13T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T08:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-13T08:12:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-13T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-08-13T08:25:02] front_door_contact | BooleanState.StateValue = False
[2026-08-13T08:25:07] living_room_light | OnOff.OnOff = True
[2026-08-13T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T08:30:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:32:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-13T08:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-13T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-13T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-13T08:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-13T08:55:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T08:57:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-13T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-13T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-08-13T09:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-08-13T09:08:46] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-13T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-13T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-13T09:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-13T09:20:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:22:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-13T09:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-13T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-13T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-13T09:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-13T09:45:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:47:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-13T09:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T10:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T14:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-13T23:49:05] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T14:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-14T23:49:03] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2509
[2026-08-15T07:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-15T07:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-15T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T08:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-08-15T08:12:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-15T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-15T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-15T08:25:02] front_door_contact | BooleanState.StateValue = False
[2026-08-15T08:25:12] living_room_light | OnOff.OnOff = True
[2026-08-15T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-15T08:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:32:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2432
[2026-08-15T08:35:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-15T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-15T08:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-15T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-15T08:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T08:57:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-15T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-15T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-15T09:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-15T09:15:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-15T09:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:22:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-15T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-15T09:33:51] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-15T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-15T09:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-15T09:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-15T09:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:47:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-15T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-08-15T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-15T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-15T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-15T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-15T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-15T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558

## 任务
请从下面 3 天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": "出门频率突然下降",
  "reasoning": [
    "推理步骤1: 首日仍有出门链路",
    "推理步骤2: 后续明显缺少外出相关事件",
    "推理步骤3: 可能反映社交/功能退缩"
  ],
  "key_evidence": [
    "首日仍有出门链路",
    "后续明显缺少外出相关事件",
    "可能反映社交/功能退缩"
  ],
  "recommended_actions": [
    "标记为出门频率异常下降，建议结合老人状态持续观察。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式稳定，无入侵、设备故障或环境安全隐患。",
  "reasoning": [
    "行为模式一致性：住户在三天内的起床时间（约 07:20-07:40）、出门时间（约 08:25）和夜间睡眠状态（卧室占用持续至深夜）高度一致，符合独居老人的正常作息习惯。",
    "门锁操作逻辑正常：每次 front_door_contact 变为 False（开门）后，均在极短时间内（<1 分钟）由 front_door_lock 执行 LockState=2（上锁），且随后 entrance_occupancy 短暂为 1 随即消失，表明是住户正常进出并随手关门上锁，无尾随或长时间未关门的迹象。",
    "环境传感器数据合理：温度传感器读数（如客厅 25.0°C-25.6°C，卧室 24.3°C-24.5°C）处于舒适且安全的范围内，无异常高温（火灾风险）或低温；漏水传感器未触发报警；烟雾报警器无异常事件记录。",
    "跨天对比无突变：三天的关键事件计数（living_room, bedroom, kitchen 等）波动极小，未见突然的长时间离家、异常频繁的活动或设备离线情况。"
  ],
  "key_evidence": [
    "front_door_contact (False) 与 front_door_lock (LockState=2) 在每次出门事件中紧密关联，时间差小于 1 分钟。",
    "卧室 occupancy 在 23:49 仍为 1，且次日早上 07:27 才出现新的起床活动，符合正常的夜间睡眠周期。",
    "所有温度传感器读数均稳定在 24°C-26°C 区间，无急剧变化或超出安全阈值的情况。"
  ],
  "recommended_actions": [
    "继续保持当前的监控频率，无需额外干预。",
    "建议定期（如每季度）检查老人使用的智能设备电池电量及固件更新状态，确保长期运行稳定。"
  ]
}
```


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: kitchen_cook_surface
- 已选事件数: 111

## 跨天活动摘要
- 2026-08-11: living_room=210, bedroom=241, kitchen=239, entrance=230, bathroom=59
- 2026-08-12: living_room=210, bedroom=242, kitchen=241, entrance=230, bathroom=57

## 设备事件日志
[2026-08-11T06:08:35] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-11T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-08-11T10:11:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-08-11T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-11T10:41:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-08-11T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-11T11:03:00] kitchen_light | OnOff.OnOff = True
[2026-08-11T11:04:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-11T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-11T11:06:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-11T11:13:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-11T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-11T11:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-11T11:33:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-11T11:36:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:39:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-11T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-08-11T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-08-11T11:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-11T11:58:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-11T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-11T12:01:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-11T12:08:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-11T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-08-11T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-11T12:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-11T12:23:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-08-11T12:26:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:27:08] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-11T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2413
[2026-08-11T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-11T12:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-11T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-11T12:48:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-11T12:52:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2409
[2026-08-11T12:56:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-11T13:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T13:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-11T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2491
[2026-08-11T13:26:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-11T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-08-11T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2471
[2026-08-11T13:51:12] living_room_light | OnOff.OnOff = True
[2026-08-11T14:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-11T17:06:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-12T10:00:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-12T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-12T10:30:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-08-12T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-12T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-08-12T11:00:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:03:51] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-12T11:05:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:06:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-12T11:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-12T11:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-12T11:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-12T11:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-08-12T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-12T11:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-12T11:50:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-12T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-12T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-12T12:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-12T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-08-12T12:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-08-12T12:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-12T12:15:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-12T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-12T12:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-08-12T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2515
[2026-08-12T12:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:38:11] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-08-12T12:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2505
[2026-08-12T12:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-08-12T12:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-12T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516

## 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": "health_concern",
  "threat_description": "做饭时间异常短",
  "reasoning": [
    "推理步骤1: 做饭时长明显缩短",
    "推理步骤2: 跨天重复出现",
    "推理步骤3: 可能提示进食不足或功能下降"
  ],
  "key_evidence": [
    "做饭时长明显缩短",
    "跨天重复出现",
    "可能提示进食不足或功能下降"
  ],
  "recommended_actions": [
    "标记为进食相关异常，建议关注老人营养与健康状态。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "家庭环境运行正常，设备状态符合独居老人的日常作息规律，未发现安全威胁或异常行为。",
  "reasoning": [
    "时间线分析：日志显示的活动主要集中在上午 10:00 至下午 13:50 之间，随后在 17:06 有一次短暂的灶具开启记录（可能是误触或极短时间操作），整体活动模式符合老人白天居家活动的特征，无夜间异常入侵迹象。",
    "设备状态一致性：厨房灶具 (kitchen_cook_surface) 的开启与关闭事件均伴随厨房温度传感器读数变化及人员在场检测，且每次开启后不久即关闭，未出现长时间无人看管烹饪的情况。",
    "传感器数据合理性：所有温度传感器读数（如客厅约 25°C，卧室约 24°C）均在舒适且安全的范围内；漏水传感器、烟雾报警器等关键安全设备未触发警报；窗户和门锁状态稳定，无非法闯入迹象。",
    "行为逻辑验证：卧室窗帘在中午时分自动或手动完全打开（CurrentPositionLiftPercent100ths = 10000），这与日间光照充足的时间段相符，属于正常的居住行为，非异常操作。"
  ],
  "key_evidence": [
    "厨房灶具仅在有人在场时短暂开启并迅速关闭，无长时间无人值守风险。",
    "所有运动传感器和接触传感器报告的人员活动轨迹连贯，符合单人居住的生活习惯。",
    "关键安全设备（烟雾、漏水、门窗）在整个监控时段内均未检测到危险信号。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控频率，无需额外干预。",
    "建议定期检查厨房灶具的防干烧功能是否灵敏，以防未来发生类似 17:06 的短暂误操作导致隐患。"
  ]
}
```


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

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

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

## 家庭环境信息
家庭布局: 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: kitchen_cook_surface
- 已选事件数: 117

## 跨天活动摘要
- 2026-07-22: living_room=210, bedroom=242, kitchen=241, entrance=230, bathroom=57
- 2026-07-23: living_room=210, bedroom=242, kitchen=241, entrance=229, bathroom=63

## 设备事件日志
[2026-07-22T06:02:37] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-22T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-22T10:10:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-22T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-22T10:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-22T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-22T11:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-22T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-22T11:05:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-22T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-22T11:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-22T11:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-22T11:25:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-22T11:33:51] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-22T11:38:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-22T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-22T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-22T11:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-22T11:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-22T11:55:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-22T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-22T12:03:51] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-22T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-22T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-22T12:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-22T12:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-22T12:20:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-07-22T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-22T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-22T12:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:38:00] living_room_light | OnOff.OnOff = False
[2026-07-22T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-22T12:40:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:43:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2511
[2026-07-22T12:45:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-22T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-07-22T13:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-22T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-22T13:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T13:10:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2498
[2026-07-22T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-22T13:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-22T14:00:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T17:08:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-23T10:00:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-23T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-23T10:30:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-23T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-23T11:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-07-23T11:00:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-23T11:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-23T11:06:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-23T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-23T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-23T11:15:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-23T11:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:20:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-23T11:25:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2433
[2026-07-23T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-23T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-23T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-23T11:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-23T11:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:50:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-23T11:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-23T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-23T12:04:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-23T12:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-07-23T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-23T12:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-23T12:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:15:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-23T12:20:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2421
[2026-07-23T12:29:47] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-23T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-23T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-23T12:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:36:00] living_room_light | OnOff.OnOff = False
[2026-07-23T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2513
[2026-07-23T12:41:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-23T12:45:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405

## 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": "health_concern",
  "threat_description": "做饭时间异常短",
  "reasoning": [
    "推理步骤1: 做饭时长明显缩短",
    "推理步骤2: 跨天重复出现",
    "推理步骤3: 可能提示进食不足或功能下降"
  ],
  "key_evidence": [
    "做饭时长明显缩短",
    "跨天重复出现",
    "可能提示进食不足或功能下降"
  ],
  "recommended_actions": [
    "标记为进食相关异常，建议关注老人营养与健康状态。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在烹饪活动期间出现间歇性数据丢失（返回 None），可能导致无法及时监测过热或火灾风险。",
  "reasoning": [
    "推理步骤 1: 日志显示独居老人在 2026-07-22T11:38:00 和 2026-07-23T11:06:00 期间，当厨房灶具处于开启状态且有人在场时，kitchen_temp_sensor 报告的温度值为 'None'，而非正常的数值。",
    "推理步骤 2: 这种数据缺失发生在关键的安全监控时段（烹饪中），对于独居老人而言，如果传感器因故障未能上报高温读数，将直接导致火灾预警系统失效，构成严重安全隐患。",
    "推理步骤 3: 虽然其他设备（如运动传感器、灯光）运行正常，但核心安全传感器（烟雾报警器未在此片段报错，但温度传感器作为辅助热源监测已失效）的数据中断属于明确的设备故障模式，需立即处理以防万一。"
  ],
  "key_evidence": [
    "[2026-07-22T11:38:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None (此时 kitchen_cook_surface 曾于 11:02 开启)",
    "[2026-07-23T11:06:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None (此时 kitchen_light 刚开启，且随后 11:10 恢复数值)"
  ],
  "recommended_actions": [
    "立即检查并更换或维修厨房温度传感器，确保其能持续稳定上报数据。",
    "在修复前，建议老人烹饪时保持窗户开启或人工留意厨房情况，作为临时补偿措施。",
    "验证客厅烟雾报警器的电池及功能是否正常，以弥补厨房温度监测的暂时缺失。"
  ]
}
```


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: kitchen_light
- 已选事件数: 118

## 跨天活动摘要
- 2026-07-19: living_room=210, bedroom=242, kitchen=240, entrance=229, bathroom=63
- 2026-07-20: living_room=209, bedroom=242, kitchen=239, entrance=230, bathroom=62
- 2026-07-21: living_room=208, bedroom=242, kitchen=241, entrance=229, bathroom=62

## 设备事件日志
[2026-07-19T05:59:05] kitchen_light | OnOff.OnOff = True
[2026-07-19T10:30:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T10:50:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-19T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-19T11:15:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-19T11:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:29:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-19T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-19T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-19T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-19T11:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-19T11:50:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T11:59:47] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-19T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-19T12:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-19T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-19T12:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-19T12:15:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-19T12:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-19T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-19T12:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:36:07] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 10000
[2026-07-19T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-19T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-07-19T12:50:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-19T13:10:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-19T13:30:09] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-20T12:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-20T13:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2496
[2026-07-20T13:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-20T13:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2497
[2026-07-20T13:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-20T13:31:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T13:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-20T13:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T13:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-07-20T13:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-20T13:49:08] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T13:51:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T13:53:03] bedroom_window | WindowCovering.CurrentPositionLiftPercent100ths = 0
[2026-07-20T13:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-20T14:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2483
[2026-07-20T14:03:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2461
[2026-07-20T14:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2370
[2026-07-20T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-07-20T14:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2466
[2026-07-20T14:28:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2463
[2026-07-20T14:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-20T14:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2349
[2026-07-20T14:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-20T14:53:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T14:56:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-20T15:02:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T15:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-20T15:07:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T15:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339
[2026-07-20T15:18:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T15:38:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T15:58:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-21T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-21T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-21T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-21T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-21T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-21T15:50:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T15:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-07-21T15:56:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-21T16:01:38] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T16:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-21T16:07:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-21T16:15:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-21T16:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-21T16:27:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-21T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-07-21T16:40:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-21T16:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-07-21T16:52:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T16:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-07-21T16:55:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-21T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2264
[2026-07-21T17:00:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T17:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2263
[2026-07-21T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2346
[2026-07-21T17:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T17:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-21T17:20:00] kitchen_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": "老人用餐时间逐步推迟",
  "reasoning": [
    "推理步骤1: 厨房活动时间逐日明显变晚",
    "推理步骤2: 偏移幅度持续增大",
    "推理步骤3: 提示作息漂移异常"
  ],
  "key_evidence": [
    "厨房活动时间逐日明显变晚",
    "偏移幅度持续增大",
    "提示作息漂移异常"
  ],
  "recommended_actions": [
    "标记为作息异常漂移，建议结合健康状况进一步关注。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "设备日志显示独居老人的日常活动规律，无入侵、火灾或设备故障迹象。",
  "reasoning": [
    "推理步骤 1: 分析住户行为模式。日志显示老人每天在固定时间段（约 10:30-17:20）有规律的室内活动，包括客厅、卧室和厨房的占用检测，且夜间（如 05:59 开灯）和清晨无异常长时间静止，符合独居老人的正常作息习惯。",
    "推理步骤 2: 检查环境传感器数据。温度传感器读数（如 living_room_temp_sensor 的 2549 mK ≈ 25.5°C）处于舒适且安全的范围内，未出现高温报警或低温异常；烟雾报警器未在日志中触发警报事件。",
    "推理步骤 3: 验证设备状态一致性。厨房灶具 (cook_surface) 仅在白天有人活动时开启，随后关闭；门窗传感器和窗帘状态变化与人员进出及开窗行为逻辑一致，未发现门锁被非法操作或传感器卡死导致的误报/漏报现象。"
  ],
  "key_evidence": [
    "所有房间的运动传感器 (occupancy_sensor) 报告的人员活动频率与时间分布符合单人居住的正常生活节奏。",
    "温度传感器数值稳定且在安全区间内，无任何火灾风险相关的阈值越界记录。",
    "厨房灶具开启时间与人员在场时间高度重合，不存在无人看管烹饪的情况。"
  ],
  "recommended_actions": [
    "继续保持当前的设备监控策略，无需额外干预。",
    "建议定期（如每周）手动确认一次烟雾报警器和漏水传感器的物理状态，确保其功能正常。"
  ]
}
```


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: 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, front_door_contact, front_door_lock
- 已选事件数: 104

## 跨天活动摘要
- 2026-07-29: living_room=209, bedroom=242, kitchen=238, entrance=232, bathroom=62
- 2026-07-30: living_room=208, bedroom=242, kitchen=240, entrance=229, bathroom=62
- 2026-07-31: living_room=211, bedroom=243, kitchen=240, entrance=230, bathroom=61

## 设备事件日志
[2026-07-29T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-29T07:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-29T07:49:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-29T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T08:09:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-29T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-29T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-29T08:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-29T08:31:00] front_door_lock | DoorLock.LockState = 2
[2026-07-29T08:31:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-29T08:37:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-29T08:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-29T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-29T08:51:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-29T08:59:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-29T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-07-29T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-07-29T09:02:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-07-29T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-29T09:16:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-29T09:21:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:24:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-29T09:27:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-29T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-29T09:37:42] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-29T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-29T09:41:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-29T09:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:49:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-29T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-29T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-29T10:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-29T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-29T10:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-29T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-29T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-29T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-29T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-29T10:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-29T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-29T20:48:20] front_door_lock | DoorLock.LockState = 1
[2026-07-30T07:06:14] front_door_lock | DoorLock.LockState = 1
[2026-07-30T20:42:13] front_door_lock | DoorLock.LockState = 1
[2026-07-31T07:04:15] front_door_lock | DoorLock.LockState = 1
[2026-07-31T07:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-07-31T07:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T07:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T07:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-31T08:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-31T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-31T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-31T08:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2426
[2026-07-31T08:20:00] front_door_lock | DoorLock.LockState = 2
[2026-07-31T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-31T08:20:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-31T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-31T08:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-31T08:37:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-31T08:40:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-31T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-31T08:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-31T08:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T08:58:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-31T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:02:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-31T09:05:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-31T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-31T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-07-31T09:23:47] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-31T09:27:09] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-31T09:30:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-31T09:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-31T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-31T09:50:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:10:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-31T10:30:10] living_room_occupancy | OccupancySensing.Occupancy = 1

## 任务
请从下面 3 天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": "出门频率突然下降",
  "reasoning": [
    "推理步骤1: 首日仍有出门链路",
    "推理步骤2: 后续明显缺少外出相关事件",
    "推理步骤3: 可能反映社交/功能退缩"
  ],
  "key_evidence": [
    "首日仍有出门链路",
    "后续明显缺少外出相关事件",
    "可能反映社交/功能退缩"
  ],
  "recommended_actions": [
    "标记为出门频率异常下降，建议结合老人状态持续观察。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常活动模式正常，无入侵、设备故障或环境安全隐患。",
  "reasoning": [
    "入住与出门逻辑一致：日志中 front_door_lock 在早晨 (07:20-08:31) 和晚上 (20:42-20:48) 呈现正常的解锁/上锁循环，且开门事件 (front_door_contact=False) 紧随其后，符合老人起床外出和晚间归家的习惯。",
    "室内活动连贯：卧室 occupancy 在早晨 07:29 变为 1，随后客厅、厨房等区域陆续检测到人员活动，时间线流畅，未发现长时间无人却有人活动的矛盾或异常滞留。",
    "传感器数据合理：温度传感器读数（如 living_room_temp_sensor 的 2508-2559 mK，即约 25°C）处于舒适且正常的家庭环境温度范围内，未出现漂移、卡死或极端异常值；漏水、烟雾等安全传感器未在日志中触发报警状态。"
  ],
  "key_evidence": [
    "前门门锁状态变化 (LockState 1->2) 与接触传感器 (ContactSensor False) 的时间差极短 (<10s)，表明是住户主动开关门，非尾随入侵。",
    "全天各房间 occupancy 状态转换自然，从卧室起床到全屋活动再到夜间休息，符合独居老人的典型作息规律。",
    "所有温度传感器读数稳定且在正常区间内，无 sensor_drift 或 sensor_malfunction 迹象。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需额外干预。",
    "建议定期查看设备固件更新，确保 Matter 协议下的传感器精度维持在最佳水平。"
  ]
}
```


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: kitchen_light
- 已选事件数: 114

## 跨天活动摘要
- 2026-07-15: living_room=208, bedroom=242, kitchen=241, entrance=229, bathroom=62
- 2026-07-16: living_room=211, bedroom=242, kitchen=241, entrance=230, bathroom=61
- 2026-07-17: living_room=210, bedroom=242, kitchen=240, entrance=230, bathroom=60

## 设备事件日志
[2026-07-15T06:00:02] kitchen_light | OnOff.OnOff = True
[2026-07-15T10:31:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:51:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-15T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-15T11:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:22:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-15T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-15T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-15T11:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-15T11:46:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-15T11:52:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T11:55:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-15T12:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-15T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-07-15T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-15T12:11:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-15T12:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-07-15T12:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-15T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-15T12:41:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-15T12:46:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:52:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T12:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-07-15T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-15T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-15T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2500
[2026-07-15T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2480
[2026-07-15T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2482
[2026-07-16T12:40:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T13:00:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T13:20:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-16T13:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-07-16T13:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T13:40:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2489
[2026-07-16T13:45:06] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-16T13:50:10] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T13:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2373
[2026-07-16T14:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-07-16T14:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2465
[2026-07-16T14:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2365
[2026-07-16T14:10:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T14:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-16T14:20:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-07-16T14:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T14:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-07-16T14:30:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T14:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-16T14:35:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T14:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-07-16T14:44:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T14:45:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T14:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-07-16T14:50:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T14:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-16T15:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-16T15:00:20] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T15:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-16T15:09:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T15:10:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2420
[2026-07-16T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-07-16T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-16T16:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2406
[2026-07-17T15:03:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T15:23:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T15:43:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T15:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2308
[2026-07-17T15:53:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T15:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-17T16:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-07-17T16:03:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-07-17T16:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2294
[2026-07-17T16:18:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-17T16:23:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:25:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-17T16:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-07-17T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-07-17T16:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-17T16:48:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:50:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T16:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-17T16:55:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T17:00:00] kitchen_light | OnOff.OnOff = True
[2026-07-17T17:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-17T17:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T17:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2368
[2026-07-17T17:08:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T17:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T17:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2352
[2026-07-17T17:15:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-17T17:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-07-17T17:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1

## 任务
请从下面 3 天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": "老人用餐时间逐步推迟",
  "reasoning": [
    "推理步骤1: 厨房活动时间逐日明显变晚",
    "推理步骤2: 偏移幅度持续增大",
    "推理步骤3: 提示作息漂移异常"
  ],
  "key_evidence": [
    "厨房活动时间逐日明显变晚",
    "偏移幅度持续增大",
    "提示作息漂移异常"
  ],
  "recommended_actions": [
    "标记为作息异常漂移，建议结合健康状况进一步关注。"
  ]
}

```json
{
  "is_anomaly": true,
  "confidence": "high",
  "threat_type": "sensor_malfunction",
  "threat_description": "厨房温度传感器在活跃时段出现数据丢失和数值跳变，且与灶具使用场景不匹配，存在设备故障或环境异常风险。",
  "reasoning": [
    "推理步骤 1: 分析日志发现，2026-07-15T11:22:00 时 kitchen_temp_sensor 报告值为 None，随后在 11:25:00 突然跳变为 2544 (约 25.4°C)，而前后时刻（11:15 为 2536，11:50 为 2534）数值相对稳定。这种‘无值’后接‘突变’的模式不符合正常热惯性，表明传感器可能发生了通信中断、校准错误或硬件故障。",
    "推理步骤 2: 结合住户画像（独居老人）和设备类型（厨房），厨房是火灾高发区。虽然当前温度读数未显示过热（如 >2500 通常代表高温报警阈值，此处 2544 仍在常温范围但波动剧烈），但传感器的不可靠性意味着无法准确监测潜在的烟雾或高温起火前兆。",
    "推理步骤 3: 对比其他房间，卧室和客厅的温度传感器读数随时间平滑下降（符合夜间/清晨降温规律），唯独厨房传感器表现出明显的非连续性异常。这排除了全屋环境温度骤降的可能性，进一步确认是厨房特定设备的 malfunction。"
  ],
  "key_evidence": [
    "[2026-07-15T11:22:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None",
    "[2026-07-15T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544",
    "同一时间段内，living_room 和 bedroom 温度传感器数据连续且平稳，形成鲜明对比。"
  ],
  "recommended_actions": [
    "立即检查厨房温度传感器的物理连接及供电状态，尝试重启设备。",
    "若传感器无法恢复稳定读数，建议暂时手动移除该传感器并启用备用方案（如人工巡检或使用其他房间温度作为参考）。",
    "通知住户注意厨房用火安全，鉴于传感器可能失效，需保持警惕以防火灾隐患。",
    "联系 Matter 协议网关或设备厂商排查是否存在固件 Bug 导致的数据上报错误。"
  ]
}
```