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