通过多通道网桥可以将本地网络与控制中心连接为信息互通协作网络。本文描述了设计和实现,并讨论了具体实现中位提高效率和通信能力,选择GPRS作为备份通信路有的改进措施。 Through the multi-channel bridge, the local network and the control center can be connected as an information exchange and collaboration network. This article describes the design and implementation, and discusses the improvements that have been made to achieve mid-point efficiency and communication, to select GPRS as the backup communication path.