摘要
介绍了在电力系统计量类设备中应用广泛的DL蛐T-645通信规约。提出了应用PWM原理实现红外通信调制的方法,给出了相互独立的基于UART的光电隔离RS-485和软件模拟的调制红外通信双接口电路,指出硬件设计的关键问题,说明软件设计要点并给出帧接收流程图,提供实用的设计参考。
The DI/T-645 protocol used in equipment for measurement of power and the principle of infrared communication are introduced. A method of infrared modulation with PWM is put forward, two independent communication interfaces, RS-485 bus basing on electric-photo isolated UART and infrared communication implemented by software,and the key of hardware design is provided. The main point of software design, the flow of receiving frame and the applicable reference for implementation are brought up.
出处
《电测与仪表》
北大核心
2005年第8期61-64,30,共5页
Electrical Measurement & Instrumentation
