Development And Monitoring Of Material Flow System Of Automatic Workshop Based On CAN Field Bus

With the rapid development of technology and the coming age of economic globalization, the manufacturing industry, which is the mainstay of the national econmic development, not only is facing a rigorous challenge but also a development opportunity.The quality of the product, efficiency of processing, manufacture period and cost of the enterprise have attracted the highly recognition of scholars and entrepreneurs. Therefore, which makes higher demands on the level of automatization. The wireless communications and the industrial networks are two powerful technologies for the rapidly growing manufacturing industry. The combination of them is the key to productivity v/ith the lowest possible enough to be widely utilized to industrial automation. In addition, the development of industrial network CAN is able to offer a robust and low cost solution to machinery networking.This paper takes the workshop automatizing as a background, engages in the research of transportation of material flow and primary key technology of monitoring system and AGV (Automatic Guided vehicle) and the technology of central automatic workshop monitoring system based on CAN Field Bus and perform correlative validation of application in engineering.Firstly, this thesis discusses some fundamental concepts of CAN bus. Secondly, it describes the implementation of AGV based on optical control belt, as a system mixed with many technologies including optics, mechanics, electricity and computer, it involves many key technologies. These technologies are discussed deeply in this paper, and according to practical condition of the system, the most economic implement methods are proposed. The structure of underpan of AGV is a style of four wheels, which is driven by two wheels and swerved by the difference velocities between them, its control system mainly adopts the control method based on rules; efficient control to AGV is implemented within the range of allowable error. Then design of information collection system related to workshop is given. Taken the intelligent CAN nodes to monitor AGV as object, the design and implementation of software and hardware were realized. Finally the whole plan of software for Central Control System is presented in details, which is made up of 3 functional-modules, including scheduling and managing module, data transporting and processing module, and work station monitoring module.As for similar developing of products, in other manufacturing enterprises, this thesis proposes some valuable exploration, the author puts forward some viewpoint and suggestion on this system and how to transform the control system of existing production and according to develop tendencies.