Research On Improvement Methods Of Performance Of Distributed And Real-time Control System Based On Field Bus

With the development of communication, electronics and computer, the indusrial control system has changed so much and has the requirement of higher real-time characteristic, such as the quicker transfer of information, quicker control of filed devices, quicker display and operation of supervisor. The real-time characteristic has important effect to the entirs control system. So researching and optimizing the real-time characteristic of control system is very important.At the first part of this paper, some typical fieldbus protocols are introduced, and their common characters, espcially in real-time communication field are discussed. Also proposed some recommendations to improve real-time, and its feasibility are discussed.Finally, the work of the project is summarized, and the later work is prospected.