GPRS终端与电能表通信不成功原因分析及检测

Reason analysis and check test of unsuccesful communication between GPRS and energy meter

电力系统利用GPRS终端进行抄表已得到了广泛应用,但RS485的抄表端口稳定性弱,同时与GPRS终端的关联性强,一个环节出现故障就会导致抄表不成功,影响抄表成功率。结合工作经验,分析GPRS终端与电能表通信不成功的原因,介绍利用万用表和笔记本电脑检查测试RS485接口的具体方法。

It has been obtained a widespread application for power system using GPRS terminals to read energy meter.But the stability of RS485 reading port is weak and the association with GPRS is strong.Once one section is breakdown,it will lead to falure reading so as to impact reading sucess rate.Combined with work experience,the paper analyzes the reasons for unsuccessful communition,introduces the specific method of RS485 interface test with multimer and computer.