GSM与GPRS在远程数据采集中的比较

Comparisons Between GSM and GPRS in Remote Data Acquisition

介绍了远程数据通信中在空间电场测量项目的构成,讨论了GSM和GPRS的基本原理和应用,针对空间电场数据远程通信的情况,在部署方法、通信协议、费用以及时间延迟等方面对GPRS和GSM两种方案进行了比较。比较的结果表明,GSM Modem方式适合于通信频率小,数据延迟不敏感,费用低的场合;GPRS DTU方式适合于通信频率大,数据延迟小,数据量大,安全性要求高的场合。

Construction of remote communication in spatial electronic field measurement is introduced. Related principles and applications of GSM and GPRS are discussed. According to the case of remote communication in spatial electronic field measurement, comparisons between plans of GSM and GPRS are presented in following aspects： deployment, protocol, cost and delay. Comparisons reveal that： plan of GSM Modem is fit for circumstances of low communicating frequency, insensitiveness of data delay and low cost; plan of GPRS DTU adapts to occasions of high communicating frequency, low delay, large data flow and restrict requirement of security.