基于RS-485通信协议的排队系统研制

Research and application of RS-485 communication protocol on queue system

提出了在智能排队系统中应用RS-485通信协议,用于解决系统各个模块之间的通信。通过分析RS-485标准电气特性、通信协议及其设计思想,结合排队系统设计了通信协议及软件,给出了主机和从机通信软件的详细设计说明;最后,在项目中验证了该通信协议及软件。应用结果表明,系统通信软件简洁高效,可移植性强,性能稳定可靠,解决了排队系统的基本通信需求。

This paper presents the application of RS-485 communication protocol on queue system which resolves the communication among all blocks. Firstly, through the analyzing of the electrical characteristics and communication protocol and design idea of RS-485 standard, The communication protocol and software are designed according to queue system. And then, It presents the detailed design explanation of communication software of host and slave. Finally, in project,it demonstrates the communication protocol and software are effective. The application results show that the communication software are concise and has powerful transplantable capability and reliable performance. It solves the communication requirements of queue system.