The system has a LAN with star structure, adopting client / server method. 1+1 hot-standby of the server e and the real time mirror of the database, to insure the continuance of t sever and the consistence of data.

• 该系统是一个具有星型拓扑结构的局域网，采用客户机/服务方式，服务器1+1热备，数据库数据实时镜像，以确保服务的连续性及数据的一致性。