| With the rapid development of information technology, the great changes have taken place in automatic system and information system of enterprises based on the automatic system of integrated network has gradually formed. PCS is a new technology complying with this tendency. FSC is one of hotspots in the field of automatic technology development, appraised as computer LAN in the domain of automatization.PCS is a system that is applied in the field of production to realize serially bi-directional multicast digital communication, also called open, digitized and multicast communication bottom layer control network, which has a wide prospect of application in automatic system in such fields as manufacturing, processing industry, communication, buildings and so on..CAN, an international standard, has general accepted as one of the most prosperous FCSo It belongs to asynchronous communication network. Compared with common communicative PCS, it is endowed with outstanding dependability, the property of real-time and flexibility because of more work, frame structure, bus access method and error tolerance technology . CAN has been adopted in the domain of automobile, train, intelligent buildings, automaton, fire-control management and automatic meter.hi this subject on intelligent gate system, the contradiction among transmission distance, quantity of node and transmission time under the condition of low-cost transmission media will be solved, so that the anticipative target will be achieved, thanks to the CAN technology.This article is divided into five sections, In the first section, the development, variety and characteristics of FCS will be introduced and the specialty of CAN technology will be detailedly mentioned in the following paragraph and in the last, the key technology in realizing intelligent gate system using CAN technology and the precautions in system design will be expatiated. |
