中文
含义
悬崖传感器异常。机器人检测到悬崖传感器脏污、遮挡或内部故障，防跌落功能可能失效。
常见原因
- 悬崖传感器（红外或激光测距）窗口被灰尘或碎屑覆盖
- 传感器被拖地后的水渍或液体遮挡
- 在深色或反光地面（如黑色亮面瓷砖）上传感器误判
- 厚地毯导致传感器与地面距离过近触发保护
- 传感器红外发射管或接收管老化导致灵敏度下降
自助排查
- 用干净软布擦拭机器人底部所有悬崖传感器窗口
- 在浅色地板上测试机器人——确认传感器是否正常
- 检查地面是否有水渍或清洁剂残留——清理后重试
- 在传感器与地板距离明显变化的环境（门口脚垫）观察是否误报
- 若擦拭后仍持续报错，需要更换悬崖传感器模组
English
Meaning
Cliff sensor anomaly. The robot’s drop-detection sensors are dirty, blocked, or have an internal failure — fall prevention may be compromised.
Common Causes
- Cliff sensor (infrared or laser rangefinder) windows covered with dust or debris
- Sensors obscured by water or cleaning solution residue after mopping
- Dark or reflective floors (e.g., glossy black tiles) causing erroneous readings
- Thick carpet reducing the floor-to-sensor distance, triggering protection mode
- Aging IR LED or phototransistor reducing sensor sensitivity
Self-Check Steps
- Wipe all cliff sensor windows on the robot’s underside with a clean, dry cloth
- Test the robot on a light-colored floor to verify sensor function
- Check for water streaks or cleaning agent residue on the floor — clean and retry
- Observe if false triggers occur at transitions with large height changes (e.g., door mats)
- If cleaning does not resolve the issue, the cliff sensor module needs replacement