Data in human presence and distance in the smart toilet

The infrared sensor focuses on human presence and distance in the smart toilet. The main issue is body orientation because the sensor responds more precisely on a flat surface compared to a curved one.红外传感器（infrared sensor）用于智能马桶场景中的人体存在与距离检测，其面临的核心挑战为人体朝向问题：相较于平面，该传感器在曲面上的响应精度更低。