The paper describes data transmission of remote controlled system, which does not require real time exactly but requires the data be transferred daily, realized by dial-up net.

• 针对实时性要求不高 ；但要求每天传递系统的全部数据至监控中心 ；为了节省通道费用 ；采用 VB实现拨号网络定时传送数据 .