一种新型GPRS分布式数据采集系统的研究和设计

Study and Design of New Distributed Data Acquisition System Based on GPRS

传统GPRS分布式数据采集系统中GPRS DTU无法被动连接访问而必须永远在线,造成通讯资源浪费和数据中心网络端口拥挤。本文提出基于GPRS的分布式数据采集系统的新方案,该方案DTU硬件采用ARM7结合GTM900通讯模块,运用WAP PUSH技术,实现GPRS DTU的被动连接访问,并可以构建冗余数据中心。

In the traditional GPRS Distributed Data Acquisition System, GPRS DTU needs to be on line all the time because it cannot realize the passive hnking and visiting, consequently communicative resource is wasted and network port of the data center is crowded. The paper proposes a new scheme in which the DTU adopts ARM7 in connection with GTM900 communicative module. By using WAP PUSH technology, this new system realizes the passive linking and visiting of the GPRS DTU and can construct the redundant data center.