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The Research and Application of Data Relay Based on GPRS Communications Technology

Abstract

本论文是关于GPRS技术在变电站监控系统中应用的研究,主要工作是开发以CDT规约作为通信协议的GPRSDTU数据中继。由于各个变电站地域分布分散,与监控主站之间的距离也很远,所以采用GPRS通信技术可以节省高额的布线费用。为了使得监控系统中通信信道较为稳定,采用公网静态IP的组网方案。由于监控主站条件的限制,不能申请到固定IP地址,所以在电信IDC机房托管一台服务器,同时申请一个固定IP地址。在这台服务器上运行GPRSDTU数据中继程序,数据中继程序管理地域分布分散的GPRSDTU与服务之间通信信道,依照CDT规约在各个DTU之间转发通信数据。数据中继程序主要采用网络编程技术,涉及到CDT规约...This paper studies the application of GPRS technology used in the substation monitoring system. the works are mainly on developing data relay of GPRS DTU equipment which uses the CDT protocol as its communication protocol. For the various substations distribution is disperse, and the distance between the monitoring master system and various substations is very far, hence using GPRS communications ...学位:工学硕士院系专业:信息科学与技术学院自动化系_检测技术与自动化装置学号:2005130246

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