【摘要】 研究了分布式控制在汽车车身视觉检测站中的应用，提出了以ＰＣ机为主控机，以５１单片机为下位机的分布式控制系统。文中介绍了控制网络的物理层接口及有关硬件，对数据通信部分进行了较为详细的研究，对信息传输的帧格式、指令编码、信道访问控制方法等制定了有关协议并介绍了部分软件的设计方法更多还原

【Abstract】 An application of the distributed control system in autocar body visual inspecting station is presented in the paper. The distributed control system using PC microcomputer as the host processor and the single chip microcomputer as the slave controller is proposed.In this paper,the physical interface of the control network and the relevant hardware are introduced. Meanwhile,a minute research on the data communication is proformed.The relevant protocols on data framing,instruction coding and channel access methods have been laid down,and the design method for part of the related software is presented.更多还原