通道状态查询

<p><img src="https://www.showdoc.com.cn/server/api/attachment/visitFile?sign=c938c31b70f5eafd5a0c0bd697b78bd2&amp;amp;file=file.png" alt="" /></p> <p>校时与开闸控制 <img src="https://www.showdoc.com.cn/server/api/attachment/visitFile?sign=c95ffbfc38f62082405d66819dbdc302&amp;amp;file=file.png" alt="" /></p>