智能电能表中RS-485可靠性设计方法研究
Research on RS-485 Reliability Design Method in Intelligent Energy Meters
梁金梅 1陆开洪 1梁学柱1
作者信息
- 1. 宁夏隆基宁光仪表股份有限公司,宁夏 银川 750021
- 折叠
摘要
RS-485 作为智能电能表中应用最广泛的通信总线,其设计已趋于标准化,但在实际的使用中,由于芯片工艺的波动等因素的干扰,仍然会出现通信不稳定的情况.结合实际案例,深入分析了RS-485 芯片因工艺波动导致的可靠性问题,提出了一种利用软件延迟进行准确判断的方法.实验结果表明,该方法有效提升了智能电能表RS-485 的通信可靠性.
Abstract
As the most widely used communication bus in smart energy meters,RS-485 has been designed towards standardization.However,in practical use,communication instability still occurs due to interference from factors such as fluctuations in chip technology.Based on practical cases,the reliability issues of RS-485 chips caused by process fluctu-ations are deeply analyzed,and a method of using software delay for accurate judgment is proposed.The experimental results show that this method effectively improves the communication reliability of the intelligent energy meter RS-485.
关键词
通信接口/智能电能表/可靠性/脉冲/工艺Key words
communication interface/smart meter/reliability/pulse/process引用本文复制引用
出版年
2024
NETL
NSTL
万方数据