RS485总线通信数据冲突解决方法的研究  

Research on the Solution of Data Conflict in RS485 Bus Communications

作　　者：张轶[1] 肖俊武[1] 刘雅娴[1] 王宝珍[1] 

机构地区：[1]武汉大学东湖分校电子信息工程学院,武汉430212

出　　处：《光纤与电缆及其应用技术》2010年第4期37-39,共3页Optical Fiber & Electric Cable and Their Applications

摘　　要：针对目前工业上使用较多的总线通信方式,提出在一点对多点通信出现数据冲突时的解决方法,分析了冲突的产生原因,重点阐述解决冲突的基本思想。最终使得一个中心可以带多个终端,降低了网络敷设成本,提高了系统利用率,其算法思想可供各种基于一点对多点通信方式的实际应用作为参考。Aiming at the bus communications mode that is widely used in industries, a solution when data conflicts occurs in a point-to-multipoint communications is proposed, the causes of conflict occurring are analyzed, and the basic ideas to solve the conflicts are emphatically described. Eventually one center can treat multiple terminals so that the network deployment cost is reduced, the system availability is increased. Its algorithm idea can be used as the reference for the practical application of point-to-multipoint communications mode.

关 键 词：数据通信 微处理器 分组算法 一点对多点 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]