基于GPRS的大气电场仪传输处理系统

Transmission and Processing System for Electric Field Meter Based on GPRS

通过使用宏电H7118C GPRS(通用分组无线电业务)DTU(数据传输单元),使前端基于AT89S52的下位机采集系统采集到的大气电场仪相关数据传送至上位机,由上位机基于Delphi语言编写的软件进行接收处理,从而实现单片机和PC机的无线传输,实现对多站点进行远程监测的功能。本文主要讲述下位采集传送模块、通信模块和上位处理模块,并给出各部分重要功能的程序进行分析。无线传输方式节约了电场仪到上位机间传输线的成本和在电场仪附近建立监控点的人力物力财力,能够解决条件恶劣地区电场数据采集的实际困难,因此本研究具有很好的实用性。

Through use of HongDian H7118C GPRS DTU, the signal collected by data collecting system based on AT89S52 Single Chip processor can be transmitted to computer . After that it is received and processed by software written in Delphi . Thus transmission between Single Chip processor and computer can be achieved. Multi-site remote monitoring functions can also be implemented. This paper focuses on three parts, i.e. acquisition and sending part, communication part and receiving processing part. Besides, it provides some key programs of each part and analyzes them. Wireless transmission based on GPRS can save the cost of Transmission line between the Electric Field Meter and the computer, as well as manpower, material resources and financial resources which are needed when setting up monitoring site around the Electric Field Meter. Difficulties of collecting Electric Field Meter signal from area with bad conditions can be solved too. Hence, this study has good prospect of practicability.