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Documents 基于GPRS通信技术的数据中继的研究与应用
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  • Author Author: sophie0love
  • Date Created: 21 Nov 2010 1:41 AM Date Created
  • Last Updated Last Updated: 9 Nov 2021 4:49 PM
  • Views 199 views
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基于GPRS通信技术的数据中继的研究与应用

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GPRS DTU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GPRS DTU数据中继程序,数据中继程序管理地域分布分散的GPRS DTU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,CRC校验,CDT规约分析。 论文首先介绍几种电力自动化通信技术,简述了各个通信技术的特点,重点介绍了GPRS通信技术的特点。从通信系统的可靠性、性价比、实时性和搭建便利性四方面谈论GPRS技术在变电站自动化系统运用的可行性,并提出了三种GPRS网络组网方案。 其次介绍采用GRPS技术的翔安大道电力监控系统。GPRS网络采用公网静态IP的组网方案。从三个部分介绍监控系统,1.GPRS—INTERNET网络。构建GPRS—Internet网络,GPRS DTU设备工作描述,GPRS DTU设备的配置细节;2.变电站。变电站的硬件配置结构,变电站功能,监控软件功能;3.监控主站。监控软件系统的功能描述、系统结构和编程技术细节。 再次围绕着以CDT规约作为通信协议的GPRS DTU数据中继开发的需要,介绍了CDT规约、CRC校验算法、协议分析流程、SOCKET编程模型,最后重点阐述如何编程实现数据中继管理与GPRS DTU之间的通信信道和实现数据转发。

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