一种人防警报集中控制系统的可靠连接策略

Strategy of Reliable Connection for People Aerial Defence Alarm Central-controlled System

人防警报系统的控制网络是整个系统的重要组成部分,也是最为脆弱的部分,控制网络的失败会直接导致整个系统的失败。为了提高系统控制中心和警报终端连接的可靠性,该文提出了一种建立在单一控制网络基础上的通信机制,分别以GPRS和PSTN这2种控制网络实现控制中心对警报终端的控制,引入了冗余技术,把基于这2种控制网络的控制方式无缝地整合在一起,当一个控制网络失败时,透明地切换到另一个控制网络,以减低通信失败的可能性。

The control-net for people aerial defence alarm system is an important subsystem and frail part, because the failure of it may directly lead to the failure of all the system. This paper proposes a communicate mechanism at the base of individual control-net, in order to improve the reliability for the connection between control-center and alarm end. Then the redundancy technique is introduced to our work based on the implement of control-net between control-center and alarm end through GPRS and PSTN. At the last part of the paper, the two control-nets are integrated seamlessly, when one control-net fails, the data would transmit through another one transparently, so the possibility of the failure of communication is decreased.