基于Modbus总线白车身视觉检测站控制系统的研究

白车身视觉检测站在环境恶劣的汽车焊装现场工作,需要高可靠、快速的通讯控制系统,根据测量的要求,构建了基于Modbus协议的视觉检测站控制网络,设计了视觉传感器控制器,实现了主机对视觉传感器的可靠控制。详细说明了视觉传感器控制器的硬件构成,主控计算机与传感器控制器的通讯设计。经过长期应用实践证明,此控制系统能够满足白车身视觉检测站在汽车焊装线现场长期可靠工作的需求。

Study on Control System of the Online Car-Body Visual Inspection Station based on Modbus Protocol

Since the car-body visual inspection station works under poor condition of automobile welding, a highly reliable and fast control system is needed. In accordance with the requirements of measuring, a control network of visual inspection station based on Modbus protocol was designed, as well as the controller of visual sensor, which realized the control of host computer to visual sensor effectively. The hardware structure of visual sensor and the visual sensor controller and the communication between the host computer and the cotroller were explained in details in the paper. The long-term application has proved that this system can meet the needs of Car-body Visual inspection Station for long and reliable working at the environment of welding.