WC实现车内厕所的控制。能够进行有人/无人检测显示，能够在旅客离开后自动进行冲洗。并监测污物容器的液位，在液位达到限度时关闭厕所；-WC toilet-car control. Capable of manned/unmanned test showed that automatically flushed after the guest leaves. And to monitor the level of contamination of the container, when the li