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智能电能表中RS-485可靠性设计方法研究

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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.
Research on RS-485 Reliability Design Method in Intelligent Energy Meters
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.

communication interfacesmart meterreliabilitypulseprocess

梁金梅、陆开洪、梁学柱

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宁夏隆基宁光仪表股份有限公司,宁夏 银川 750021

通信接口 智能电能表 可靠性 脉冲 工艺

2024

仪表技术
上海市仪器仪表学会,上海仪器仪表研究所等

仪表技术

影响因子:0.217
ISSN:1006-2394
年,卷(期):2024.(4)
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