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, kitchen_occupancy
- 已选事件数: 134

## 跨天活动摘要
- 2026-07-20: living_room=210, kitchen=242, bedroom=241, entrance=231, bathroom=60

## 设备事件日志
[2026-07-20T00:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T00:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2277
[2026-07-20T00:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T00:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T00:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-07-20T00:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-20T00:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2301
[2026-07-20T01:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2298
[2026-07-20T01:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T01:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T01:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2293
[2026-07-20T01:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-20T01:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-20T01:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2196
[2026-07-20T01:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-07-20T01:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2300
[2026-07-20T01:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2199
[2026-07-20T01:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2309
[2026-07-20T01:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2319
[2026-07-20T01:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2218
[2026-07-20T01:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2304
[2026-07-20T01:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T01:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T01:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T01:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T01:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T01:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-20T01:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2208
[2026-07-20T01:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2311
[2026-07-20T01:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-20T01:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-07-20T01:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2316
[2026-07-20T01:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2314
[2026-07-20T01:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2213
[2026-07-20T01:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2313
[2026-07-20T01:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-20T01:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2214
[2026-07-20T01:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2324
[2026-07-20T01:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-20T01:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2215
[2026-07-20T01:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-20T02:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2332
[2026-07-20T02:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2219
[2026-07-20T02:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-20T02:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2321
[2026-07-20T02:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2230
[2026-07-20T02:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2333
[2026-07-20T02:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2331
[2026-07-20T02:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2223
[2026-07-20T02:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2322
[2026-07-20T02:10:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T02:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2334
[2026-07-20T02:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2231
[2026-07-20T02:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2335
[2026-07-20T02:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2327
[2026-07-20T02:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2233
[2026-07-20T02:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2347
[2026-07-20T02:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2348
[2026-07-20T02:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2330
[2026-07-20T02:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2241
[2026-07-20T02:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-20T02:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T02:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-07-20T02:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2254
[2026-07-20T02:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2340
[2026-07-20T02:35:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-20T02:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2341
[2026-07-20T02:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2239
[2026-07-20T02:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-20T02:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-07-20T02:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2247
[2026-07-20T02:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2350
[2026-07-20T02:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-20T02:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2246
[2026-07-20T02:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2356
[2026-07-20T02:50:00] kitchen_light | OnOff.OnOff = True
[2026-07-20T02:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-20T02:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2267
[2026-07-20T02:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-07-20T03:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2360
[2026-07-20T03:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2265
[2026-07-20T03:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-07-20T03:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:00:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:00:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2363
[2026-07-20T03:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2271
[2026-07-20T03:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2366
[2026-07-20T03:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-07-20T03:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2270
[2026-07-20T03:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2369
[2026-07-20T03:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2371
[2026-07-20T03:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2274
[2026-07-20T03:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-20T03:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-07-20T03:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2276
[2026-07-20T03:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2376
[2026-07-20T03:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2379
[2026-07-20T03:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2283
[2026-07-20T03:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2387
[2026-07-20T03:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-07-20T03:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2281
[2026-07-20T03:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2380
[2026-07-20T03:30:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:30:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:30:00] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:30:00] entrance_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T03:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-07-20T03:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2282
[2026-07-20T03:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2388
[2026-07-20T03:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2393
[2026-07-20T03:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2284
[2026-07-20T03:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-07-20T03:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-07-20T03:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-20T03:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2390
[2026-07-20T04:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-07-20T04:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T04:00:00] kitchen_occupancy | OccupancySensing.Occupancy = 0
[2026-07-20T04:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-07-20T04:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-07-20T04:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423

## 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": "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": "检测到厨房区域存在严重的温度异常升高，且伴随无人值守状态，极可能引发火灾风险。",
  "reasoning": [
    "推理步骤 1: 分析时间线与 occupancy 状态。日志显示在 2026-07-20T02:10:00 和 T02:35:00 期间，kitchen_occupancy 传感器曾短暂报告为 1（有人），但随后在 T02:30:00、T03:00:00、T03:30:00 及 T04:00:00 等多次连续报告中显示 kitchen_occupancy = 0（无人）。这表明厨房处于无人看管状态。",
    "推理步骤 2: 分析温度数据趋势。从 T02:10:00 (2322 mK ≈ 23.2°C) 开始，厨房温度传感器读数持续单调上升，至 T04:20:00 达到峰值 2423 mK (≈ 24.2°C)。虽然绝对温差不算巨大，但在独居老人家中，这种长达 2 小时以上的持续升温且无人员干预的模式非常可疑，通常意味着热源（如灶具）被意外开启或故障。",
    "推理步骤 3: 结合住户画像与环境逻辑。住户为独居老人，夜间/凌晨时段（02:00 - 04:20）是高风险时段。厨房作为用火重地，在无人的情况下出现持续升温，符合“无人烹饪”或“设备故障导致过热”的特征，若不及时处理极易演变为火灾。相比之下，卧室和客厅温度相对稳定或略有下降，排除了全屋空调故障的可能性。",
    "推理步骤 4: 排除误报。虽然温度数值本身未超过报警阈值（通常 >50°C 才触发烟雾报警），但‘持续单向升温’ + ‘无人’的组合是典型的火灾隐患前兆模式，属于需要人工介入的异常情况。"
  ],
  "key_evidence": [
    "2026-07-20T02:10:00 至 2026-07-20T04:20:00 期间，kitchen_temp_sensor 读数从 2322 持续上升至 2423，呈现明显的异常升温趋势。",
    "在同一时间段内，kitchen_occupancy 传感器多次报告 Occupancy = 0，确认厨房处于无人看管状态。",
    "住户为独居老人，凌晨时段发生此类事件风险极高，缺乏即时反应能力。"
  ],
  "recommended_actions": [
    "立即远程通知住户或其紧急联系人，告知厨房可能存在安全隐患。",
    "建议系统自动拨打当地消防部门或物业电话进行预警（若配置了联动功能）。",
    "待住户返回后，强制检查厨房灶具是否关闭，并排查是否存在燃气泄漏或电器故障。",
    "建议升级厨房区域的智能监控或增加红外热成像摄像头以辅助判断热源位置。"
  ]
}
```


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: 121

## 跨天活动摘要
- 2026-07-14: living_room=212, bedroom=242, kitchen=239, entrance=231, bathroom=62
- 2026-07-15: living_room=209, bedroom=243, kitchen=240, entrance=231, bathroom=59
- 2026-07-16: living_room=211, bedroom=245, kitchen=239, entrance=230, bathroom=60

## 设备事件日志
[2026-07-14T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T07:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2517
[2026-07-14T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-14T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-14T08:19:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:23:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-14T08:23:13] living_room_light | OnOff.OnOff = True
[2026-07-14T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-14T08:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-14T08:34:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:35:08] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-14T08:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-14T08:48:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-14T08:54:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T08:58:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-14T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-14T09:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-14T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-14T09:19:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:23:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-14T09:29:08] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-14T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-07-14T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-14T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-14T10:04:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T10:13:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-14T10:29:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T10:38:03] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-14T23:45:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-07-15T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T08:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-15T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-15T08:18:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:22:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-15T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-07-15T08:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-15T08:44:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:48:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-15T08:54:13] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-15T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-15T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-15T09:09:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-15T09:19:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:23:07] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-07-15T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-15T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-15T09:44:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-15T10:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-15T10:14:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-15T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-07-15T10:39:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T00:30:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-16T07:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-16T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-16T07:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-07-16T08:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-16T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-07-16T08:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:24:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:26:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-16T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-16T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-16T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-16T08:46:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2442
[2026-07-16T08:59:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:01:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-16T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-16T09:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-16T09:21:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-16T09:34:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-16T09:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T09:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-16T09:56:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-16T10:21:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-16T10:46:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T10:56:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-16T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-16T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-16T11:16:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T11:21:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T11:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-07-16T11:26:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T11:31:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-16T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-16T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-16T12:00:00] 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": "health_concern",
  "threat_description": "老人连续多天活动范围缩小",
  "reasoning": [
    "推理步骤1: 活动由多房间收缩到单一区域",
    "推理步骤2: 跨天持续出现",
    "推理步骤3: 提示功能退化或健康问题"
  ],
  "key_evidence": [
    "活动由多房间收缩到单一区域",
    "跨天持续出现",
    "提示功能退化或健康问题"
  ],
  "recommended_actions": [
    "判定为老人活动范围异常缩小，建议关注健康状态。"
  ]
}

```json
{
  "is_anomaly": false,
  "confidence": "high",
  "threat_type": "none",
  "threat_description": "日志显示独居老人的日常生活模式稳定，无入侵、火灾或设备故障迹象，所有传感器读数与行为逻辑一致。",
  "reasoning": [
    "入住时间规律：住户每天均在早上 07:27-07:51 之间起床并进入卧室，随后在 08:00-08:30 间离开卧室前往客厅和厨房，符合独居老人正常的晨间作息习惯。",
    "温度数据正常：客厅温度传感器（如 2540-2557 mK，即约 25.4-25.6°C）和厨房温度传感器读数稳定且处于舒适范围，未出现烟雾报警器触发或异常高温导致的火警风险。",
    "活动轨迹连贯：从入户门解锁到玄关感应器激活，再到客厅、厨房、卧室的活动顺序和时间间隔合理，未发现非授权人员尾随（Tailgating）或长时间无人看管烹饪（Unattended Cooking）的迹象。",
    "传感器状态健康：运动传感器和接触传感器的状态变化与光照/温度事件同步，无数据漂移（Drift）或卡死（Stuck）现象，漏水传感器也未报警。"
  ],
  "key_evidence": [
    "连续三天（7/14-7/16）的起床时间和活动流程高度一致，表明行为模式稳定。",
    "所有温度读数均在 25°C 左右，远低于烟雾报警阈值，且无伴随的烟雾报警事件。",
    "入户门锁操作（LockOperation）后紧接着是室内活动，无外部非法闯入迹象。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需额外干预。",
    "建议定期（如每周）检查一次烟雾报警器和漏水传感器的电池及功能状态，作为预防性维护。"
  ]
}
```


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_cook_surface
- 已选事件数: 93

## 跨天活动摘要
- 2026-07-24: living_room=209, bedroom=242, kitchen=242, entrance=231, bathroom=59
- 2026-07-25: living_room=211, bedroom=243, kitchen=241, entrance=230, bathroom=60

## 设备事件日志
[2026-07-24T05:53:37] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-24T10:24:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T10:44:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-24T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-07-24T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-24T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-24T11:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-24T11:14:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:14:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-07-24T11:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:19:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-24T11:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-24T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-24T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-07-24T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2441
[2026-07-24T11:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-24T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-24T11:39:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:39:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-07-24T11:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:44:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T11:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2524
[2026-07-24T11:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-07-24T11:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-24T11:54:13] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2422
[2026-07-24T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-24T12:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-24T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-24T12:04:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:04:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-07-24T12:05:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-24T12:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:09:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2530
[2026-07-24T12:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2418
[2026-07-24T12:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-24T12:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-24T12:24:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:24:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2516
[2026-07-24T12:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2526
[2026-07-24T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-07-24T12:31:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:34:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-24T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2508
[2026-07-24T12:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2405
[2026-07-24T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-24T12:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-24T12:49:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:49:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2415
[2026-07-24T12:51:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:54:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T12:54:13] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-24T12:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-07-24T13:14:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T13:34:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-24T16:56:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-25T10:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-25T10:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-25T10:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-25T10:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-25T10:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-25T10:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-25T10:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2553
[2026-07-25T11:01:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-25T11:06:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-25T11:11:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T11:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-25T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2547
[2026-07-25T11:16:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T11:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-07-25T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-25T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-25T11:26:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-07-25T11:31:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T11:31:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-25T11:33:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-07-25T11:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-07-25T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-25T11:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-07-25T12:00:00] kitchen_cook_surface | OnOff.OnOff = True
[2026-07-25T12:04:00] kitchen_cook_surface | OnOff.OnOff = False

## 任务
请从下面 2 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": "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_drift",
  "threat_description": "客厅温度传感器报告的温度值（约 2540-2550）严重偏离物理常识，显示为异常漂移或故障。",
  "reasoning": [
    "推理步骤 1: 分析日志中的温度数据，发现 living_room_temp_sensor 在 2026-07-24T10:55:00 至 2026-07-24T12:35:00 期间，以及 2026-07-25T10:20:00 至 2026-07-25T11:40:00 期间，持续报告数值在 2500-2557 之间。",
    "推理步骤 2: 结合 Matter 协议标准及物理常识，室内环境温度通常在 -20°C 到 +60°C 之间（即 293K-333K）。日志中的数值（如 2543）远超正常范围，且与同一时间段内厨房和卧室传感器报告的合理数值（约 2400-2530，推测单位为 mK 即 2.4-2.5°C 偏移后的相对值，或者更可能是单位错误导致的巨大偏差，但无论如何 2500+ 绝对值对于摄氏度是不可能的，若为毫开尔文则对应约 2.5K 绝对零度附近，亦不可能；最合理的解释是传感器读数溢出、单位配置错误或严重的信号漂移导致数值畸变）。",
    "推理步骤 3: 尽管住户活动模式（进出、烹饪、占用）看起来符合独居老人的日常规律，但关键环境感知设备（客厅温度传感器）的持续异常读数会导致智能家居系统无法正确判断室温，可能引发空调误判、火灾预警失效或自动化场景执行错误，属于高风险的设备故障。"
  ],
  "key_evidence": [
    "living_room_temp_sensor 在多个时间点报告 MeasuredValue = 2543, 2557 等超出物理极限的数值。",
    "同一时间窗口内，其他房间（bedroom, kitchen）的温度传感器数值相对稳定且在合理范围内波动（例如 bedroom 约为 2400-2450），排除了全局环境极端变化的可能性。"
  ],
  "recommended_actions": [
    "立即检查并重置客厅温度传感器硬件连接或电池。",
    "联系设备制造商或技术支持，确认该传感器是否存在固件 Bug 或需要校准。",
    "在修复前，暂时关闭依赖该温度传感器的自动化场景（如自动调温），以防误操作。"
  ]
}
```


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: 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: 100

## 跨天活动摘要
- 2026-08-08: living_room=211, bedroom=243, kitchen=239, entrance=232, bathroom=60
- 2026-08-09: living_room=210, bedroom=241, kitchen=239, entrance=230, bathroom=60
- 2026-08-10: living_room=208, bedroom=241, kitchen=238, entrance=231, bathroom=57

## 设备事件日志
[2026-08-08T00:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2510
[2026-08-08T07:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-08T07:46:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-08T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T08:06:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-08T08:14:06] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2532
[2026-08-08T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-08T08:21:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-08T08:26:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:29:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-08-08T08:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-08T08:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-08T08:41:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2434
[2026-08-08T08:46:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-08-08T08:51:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:54:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-08-08T09:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-08T09:00:00] front_door_contact | BooleanState.StateValue = False
[2026-08-08T09:01:00] front_door_lock | DoorLock.LockState = 2
[2026-08-08T09:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-08-08T09:05:19] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-08T09:06:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2437
[2026-08-08T09:11:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-08T09:16:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:19:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-08T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-08-08T09:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-08T09:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-08T09:36:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-08T09:41:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:44:06] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-08-08T09:46:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2456
[2026-08-08T10:06:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T10:26:06] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T14:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-08T23:48:02] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T14:09:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-09T23:47:05] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-10T07:28:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T07:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-10T07:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T07:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-10T08:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T08:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T08:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2538
[2026-08-10T08:14:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T08:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2539
[2026-08-10T08:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-10T08:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-10T08:32:05] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T08:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-10T08:37:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-08-10T08:37:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T08:38:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T08:40:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-08-10T08:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-08-10T08:49:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-10T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-10T08:57:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T08:59:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-10T09:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-08-10T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:05:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-10T09:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-10T09:12:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:14:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-10T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-08-10T09:22:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-10T09:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2455
[2026-08-10T09:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2549
[2026-08-10T09:37:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:39:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2556
[2026-08-10T09:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-08-10T09:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2542
[2026-08-10T09:57:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-10T10:17:02] 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稳定，无入侵、设备故障或环境安全隐患。",
  "reasoning": [
    "入住与出门逻辑正常：住户在早晨（约 07:26-08:14）从卧室起床并进入客厅/厨房活动，随后在 09:00 左右前门接触传感器触发且门锁状态变为'Unlocked'（值 2），紧接着玄关和客厅有人，符合老人自然起床开门出门的时序；次日 08:37 也有手动解锁记录，但随后立即检测到室内有人，表明是住户返回家中而非外人闯入。",
    "跨天行为一致性高：三天内的房间占用计数（living_room~210, bedroom~240, kitchen~238）高度一致，且温度传感器读数均在合理范围（25°C 左右，对应日志中的 25xx 毫伏值），未出现异常高温或低温漂移。",
    "关键安全设备工作正常：烟雾报警器、漏水传感器等未在日志中报告报警事件；门锁操作有明确的'Manual'来源标记，且前后均有合法的室内人员活动轨迹支撑，排除了尾随或非法入侵的可能性。"
  ],
  "key_evidence": [
    "2026-08-08T09:00:00 front_door_contact (False) 后紧随 09:01:00 lock_unlock 及室内人员活动，符合住户出门场景。",
    "2026-08-10T08:37:00 门锁手动解锁后，08:37:02 即检测到 living_room_occupancy=1，证明是住户返回而非陌生人进入。",
    "连续三天的室温数据和各房间占用时长分布呈现稳定的昼夜节律，无突变或停滞现象。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需额外干预。",
    "建议定期检查门锁电池电量，确保长期可靠性。"
  ]
}
```


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

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

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

## 家庭环境信息
家庭布局: 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: 128

## 跨天活动摘要
- 2026-07-21: living_room=211, bedroom=241, kitchen=239, entrance=230, bathroom=60
- 2026-07-22: living_room=208, bedroom=241, kitchen=238, entrance=231, bathroom=57
- 2026-07-23: living_room=209, bedroom=245, kitchen=240, entrance=229, bathroom=60

## 设备事件日志
[2026-07-21T00:00:00] living_room_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T07:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T07:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2514
[2026-07-21T07:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2527
[2026-07-21T08:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2523
[2026-07-21T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-21T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-21T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-21T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-21T08:30:00] front_door_lock | Event: LockOperation(LockOperationType=1, OperationSource=Manual)
[2026-07-21T08:30:02] front_door_contact | BooleanState.StateValue = False
[2026-07-21T08:32:31] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-21T08:36:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T08:40:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T08:45:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-07-21T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-21T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-21T09:00:00] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T09:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T09:05:05] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T09:10:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-07-21T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-07-21T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2555
[2026-07-21T09:27:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T09:31:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T09:35:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2558
[2026-07-21T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2440
[2026-07-21T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2554
[2026-07-21T09:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T09:56:10] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T10:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T10:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T10:52:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-21T15:20:12] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2504
[2026-07-22T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-07-22T07:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2438
[2026-07-22T08:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2534
[2026-07-22T08:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2536
[2026-07-22T08:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-22T08:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-22T08:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-07-22T08:29:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T08:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:37:00] front_door_lock | DoorLock.LockState = 2
[2026-07-22T08:39:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:52:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T08:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-22T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2552
[2026-07-22T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:04:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:08:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:17:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2551
[2026-07-22T09:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2458
[2026-07-22T09:29:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-22T09:33:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:42:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T09:45:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2548
[2026-07-22T09:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2449
[2026-07-22T09:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-07-22T09:59:02] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T10:03:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T10:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T10:43:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-22T15:24:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T07:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2501
[2026-07-23T07:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2520
[2026-07-23T07:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T08:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2419
[2026-07-23T08:04:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T08:24:10] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T08:31:29] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-23T08:35:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T08:37:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T08:42:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T08:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2535
[2026-07-23T08:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2447
[2026-07-23T09:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-23T09:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T09:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T09:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T09:10:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T09:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2550
[2026-07-23T09:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2450
[2026-07-23T09:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2557
[2026-07-23T09:27:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T09:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T09:35:03] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T09:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2559
[2026-07-23T09:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2446
[2026-07-23T09:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-23T09:52:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T09:57:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T10:12:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T10:32:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T10:52:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-23T11:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2540
[2026-07-23T11:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2444
[2026-07-23T11:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-07-23T11:17:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:22:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:27:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:31:29] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-07-23T11:34:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-07-23T11:47:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-07-23T11:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-07-23T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-07-23T12:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:02:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:07:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-07-23T12:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-07-23T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-07-23T12:27:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-07-23T12:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2411
[2026-07-23T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512

## 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": "health_concern",
  "threat_description": "老人连续多天活动范围缩小",
  "reasoning": [
    "推理步骤1: 活动由多房间收缩到单一区域",
    "推理步骤2: 跨天持续出现",
    "推理步骤3: 提示功能退化或健康问题"
  ],
  "key_evidence": [
    "活动由多房间收缩到单一区域",
    "跨天持续出现",
    "提示功能退化或健康问题"
  ],
  "recommended_actions": [
    "判定为老人活动范围异常缩小，建议关注健康状态。"
  ]
}

```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、火灾或设备故障迹象。",
  "reasoning": [
    "时间线分析：所有事件均发生在合理的起床（07:00-08:30）、早餐/厨房活动（08:30-10:00）和日间活动时段，符合独居老人的典型作息规律。",
    "空间逻辑验证：运动传感器触发顺序合理（入户门 -> 玄关 -> 客厅/厨房），且卧室在夜间（00:00-06:59）保持无人状态，排除了非法入侵或异常滞留的可能性。",
    "环境数据校验：温度传感器读数（约 24.5°C - 25.5°C）处于舒适且安全的范围内，未出现烟雾报警器误报或高温预警；虽然 07-23 厨房传感器曾短暂丢失数据，但随后立即恢复并记录正常数值，属于瞬时通信波动而非持续故障。",
    "行为一致性：老人每日活动轨迹高度一致，未见长时间静止不动（排除跌倒风险）或深夜异常移动等危险信号。"
  ],
  "key_evidence": [
    "连续三天（07-21 至 07-23）的起床时间和厨房活动时间窗高度重合，表明生活规律稳定。",
    "夜间（00:00 至次日 07:00）所有房间 occupancy 均为 0，且无任何非预期开门事件。",
    "温度传感器读数稳定在 24-26 摄氏度区间，无火灾前兆的高温异常。"
  ],
  "recommended_actions": [
    "继续保持当前监控策略，无需干预。",
    "建议定期检查厨房漏水传感器和烟雾报警器的电池状态，确保长期可靠性。",
    "鉴于老人独居，可考虑在现有基础上增加每周一次的远程健康问候或视频通话确认。"
  ]
}
```


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: 119

## 跨天活动摘要
- 2026-08-27: living_room=208, bedroom=240, kitchen=239, entrance=231, bathroom=57
- 2026-08-28: living_room=209, bedroom=243, kitchen=241, entrance=229, bathroom=60
- 2026-08-29: living_room=210, bedroom=240, kitchen=238, entrance=229, bathroom=65

## 设备事件日志
[2026-08-27T05:59:02] kitchen_light | OnOff.OnOff = True
[2026-08-27T10:32:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T10:52:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-27T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-27T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-27T11:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:21:00] kitchen_cook_surface | OnOff.OnOff = False
[2026-08-27T11:23:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2531
[2026-08-27T11:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2545
[2026-08-27T11:37:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-27T11:42:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2439
[2026-08-27T11:48:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2543
[2026-08-27T11:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:57:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T11:59:44] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-27T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-27T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-08-27T12:07:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-27T12:13:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-27T12:19:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:22:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-27T12:27:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2410
[2026-08-27T12:35:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-27T12:39:10] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:42:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2521
[2026-08-27T12:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T12:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2403
[2026-08-27T12:54:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-27T13:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2506
[2026-08-27T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2494
[2026-08-27T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2488
[2026-08-27T13:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-08-27T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2476
[2026-08-28T12:42:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:02:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:22:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2401
[2026-08-28T13:32:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:35:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2389
[2026-08-28T13:37:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:40:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2485
[2026-08-28T13:42:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:46:08] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2472
[2026-08-28T13:52:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T13:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2386
[2026-08-28T13:57:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-08-28T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2470
[2026-08-28T14:07:19] living_room_light | OnOff.OnOff = True
[2026-08-28T14:12:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2468
[2026-08-28T14:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-28T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-08-28T14:22:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2451
[2026-08-28T14:27:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:31:29] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-28T14:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2453
[2026-08-28T14:42:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2357
[2026-08-28T14:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-28T14:52:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T14:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2428
[2026-08-28T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2445
[2026-08-28T15:07:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2326
[2026-08-28T15:17:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:37:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-28T15:57:13] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T15:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-29T15:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-29T15:30:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2425
[2026-08-29T15:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2417
[2026-08-29T15:50:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2416
[2026-08-29T15:52:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T15:55:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2310
[2026-08-29T15:57:14] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:00:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2397
[2026-08-29T16:03:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:07:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:09:02] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-29T16:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2394
[2026-08-29T16:17:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:20:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2286
[2026-08-29T16:22:14] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:25:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2374
[2026-08-29T16:28:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:32:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2385
[2026-08-29T16:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2375
[2026-08-29T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-08-29T16:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2272
[2026-08-29T16:47:14] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-29T16:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T16:57:00] kitchen_light | OnOff.OnOff = True
[2026-08-29T16:57:30] kitchen_cook_surface | OnOff.OnOff = True
[2026-08-29T17:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2259
[2026-08-29T17:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2362
[2026-08-29T17:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T17:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-29T17:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-29T17:22:00] kitchen_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_drift",
  "threat_description": "客厅温度传感器读数严重偏离物理现实，显示异常高温（约 254°C），且数值随时间呈现非自然的线性下降趋势，表明传感器故障或数据漂移。",
  "reasoning": [
    "推理步骤 1: 分析日志发现从 2026-08-27T11:00:00 开始，living_room_temp_sensor 报告的温度值高达 2543 (即 254.3°C)，随后在 11:10 降至 2537°C，并在后续几小时内持续缓慢下降至 2375°C (237.5°C)。",
    "推理步骤 2: 结合住户背景（独居老人）和环境常识，室内环境温度绝不可能达到 250°C 以上，即使厨房灶具开启也不可能导致整个客厅瞬间升温至此并维持数小时。这种数值远超 Matter 协议中温度传感器的合理量程（通常为 -40°C 到 +125°C）。",
    "推理步骤 3: 虽然其他房间（如卧室、厨房）的温度传感器读数正常（约 23-24°C），但客厅传感器在同一时间段内持续输出荒谬的高数值，排除了环境真实发生超高温火灾的可能性，确认为传感器硬件故障或通信数据漂移（Sensor Drift/Malfunction）。对于独居老人，错误的温度读数可能导致空调系统误判而失效，引发真实的过热风险。"
  ],
  "key_evidence": [
    "2026-08-27T11:00:00 living_room_temp_sensor 报告 MeasuredValue = 2543 (254.3°C)",
    "2026-08-27T13:45:00 living_room_temp_sensor 报告 MeasuredValue = 2476 (247.6°C)，显示异常高温随时间缓慢衰减而非恢复正常",
    "同期 bedroom_temp_sensor 和 kitchen_temp_sensor 读数均在正常范围 (23-25°C) 内，形成鲜明对比"
  ],
  "recommended_actions": [
    "立即检查客厅温度传感器硬件，确认是否损坏或受强电磁干扰，必要时更换设备。",
    "暂时手动关闭客厅空调，依靠人工观察或备用温度计监控室温，防止因传感器误报导致制冷/制热逻辑混乱引发真实过热。",
    "联系智能家居服务商更新固件或重置该传感器节点，排除软件层面的数据解析错误。"
  ]
}
```


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: 113

## 跨天活动摘要
- 2026-08-20: living_room=209, bedroom=243, kitchen=241, entrance=229, bathroom=60
- 2026-08-21: living_room=210, bedroom=240, kitchen=238, entrance=229, bathroom=65
- 2026-08-22: living_room=210, bedroom=240, kitchen=239, entrance=230, bathroom=59

## 设备事件日志
[2026-08-20T06:00:03] kitchen_light | OnOff.OnOff = True
[2026-08-20T10:32:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T10:52:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2546
[2026-08-20T11:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2544
[2026-08-20T11:17:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2537
[2026-08-20T11:27:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:30:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2431
[2026-08-20T11:34:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None
[2026-08-20T11:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2525
[2026-08-20T11:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2435
[2026-08-20T11:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2541
[2026-08-20T11:52:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T11:57:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:00:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2529
[2026-08-20T12:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2533
[2026-08-20T12:05:00] kitchen_light | OnOff.OnOff = True
[2026-08-20T12:07:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:10:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2423
[2026-08-20T12:12:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:15:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2519
[2026-08-20T12:17:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:22:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2528
[2026-08-20T12:40:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2512
[2026-08-20T12:42:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:45:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2412
[2026-08-20T12:47:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T12:50:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-20T12:52:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T13:17:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T13:37:04] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-20T17:00:00] kitchen_light | OnOff.OnOff = True
[2026-08-21T12:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2507
[2026-08-21T12:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2518
[2026-08-21T13:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2499
[2026-08-21T13:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2495
[2026-08-21T13:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2493
[2026-08-21T13:33:04] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:37:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:39:02] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-21T13:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-08-21T13:48:02] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2383
[2026-08-21T13:53:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T13:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2477
[2026-08-21T14:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2384
[2026-08-21T14:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2478
[2026-08-21T14:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2475
[2026-08-21T14:13:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:17:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2457
[2026-08-21T14:20:00] kitchen_light | OnOff.OnOff = True
[2026-08-21T14:22:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2359
[2026-08-21T14:27:14] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2452
[2026-08-21T14:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:37:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:39:02] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-21T14:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2454
[2026-08-21T14:47:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2338
[2026-08-21T14:52:14] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T14:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2448
[2026-08-21T14:58:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T15:02:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T15:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2443
[2026-08-21T15:07:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-21T15:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2436
[2026-08-21T15:15:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2430
[2026-08-21T15:25:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2429
[2026-08-21T15:35:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2408
[2026-08-21T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2398
[2026-08-22T11:05:00] kitchen_light | OnOff.OnOff = True
[2026-08-22T15:05:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T15:25:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T15:45:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T15:50:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T15:55:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2400
[2026-08-22T15:55:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:00:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2299
[2026-08-22T16:05:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2395
[2026-08-22T16:08:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:10:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2392
[2026-08-22T16:15:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:20:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2391
[2026-08-22T16:20:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:25:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2290
[2026-08-22T16:25:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:30:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2381
[2026-08-22T16:33:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:35:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:38:36] bathroom_occupancy | OccupancySensing.Occupancy = 0
[2026-08-22T16:40:00] kitchen_light | OnOff.OnOff = True
[2026-08-22T16:45:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2372
[2026-08-22T16:45:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:50:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2266
[2026-08-22T16:50:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T16:55:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2358
[2026-08-22T16:58:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T17:00:00] bedroom_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T17:05:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2355
[2026-08-22T17:05:00] kitchen_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T17:09:00] kitchen_light | OnOff.OnOff = True
[2026-08-22T17:10:00] living_room_temp_sensor | TemperatureMeasurement.MeasuredValue = 2364
[2026-08-22T17:10:11] living_room_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T17:15:00] bedroom_temp_sensor | TemperatureMeasurement.MeasuredValue = 2261
[2026-08-22T17:18:03] entrance_occupancy | OccupancySensing.Occupancy = 1
[2026-08-22T17:20:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = 2339

## 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": "厨房温度传感器在关键时间点（2026-08-20T11:34:00）报告了 None 值，且随后数值出现剧烈波动和逻辑矛盾，表明传感器可能故障或数据链路中断，存在无法准确监测火灾隐患的风险。",
  "reasoning": [
    "推理步骤 1: 分析日志发现，在 2026-08-20T11:34:00，kitchen_temp_sensor 突然上报 MeasuredValue = None，而在前后几分钟内（如 11:50 和 12:15），该传感器又恢复了数值（2541, 2519）。这种间歇性的数据丢失对于独居老人家庭中的烟雾报警器关联设备是高风险信号。",
    "推理步骤 2: 检查温度数值的合理性。日志中大量温度读数（如 2546, 2544, 2537, 2431 等）明显超出了正常摄氏度范围（通常室内为 20-30°C，即 293K-303K，若单位为 mK 则应为 293000+）。这些异常高值（约 2.5K）与正常的 2400-2500 区间（假设单位为某种缩放后的 mK 或特定协议格式下的合理值）相比，显示出传感器读数不稳定或漂移严重。",
    "推理步骤 3: 结合住户画像（独居老人），厨房是火灾高发区。如果温度传感器因故障（malfunction）而失效或提供错误数据，将导致系统无法在真实过热或起火初期触发警报，直接威胁住户生命安全。虽然其他房间数据看似正常，但单一关键安全传感器的不可靠性足以构成高置信度的异常判断。"
  ],
  "key_evidence": [
    "[2026-08-20T11:34:00] kitchen_temp_sensor | TemperatureMeasurement.MeasuredValue = None",
    "多个时间点的厨房温度读数呈现非物理合理的异常高值（如 2546, 2544），随后又跳变至正常范围，显示数据一致性差。"
  ],
  "recommended_actions": [
    "立即安排技术人员上门检查并更换厨房温度传感器，确保其硬件连接和数据传输正常。",
    "在维修完成前，建议老人避免长时间无人看管使用厨房灶具，或暂时启用更保守的监控策略。",
    "检查 Matter 网络配置，确认厨房传感器与网关之间的通信链路是否存在干扰或丢包问题。"
  ]
}
```