【摘要】 研究了CAN现场总线在铁路信号微机监测系统中的应用原理和具体实施方法 ,以改进现有微机监测系统数据通信性能。并重点介绍了智能化CAN总线通信适配卡 ,它作为该微机监测系统的核心 ,完成CAN总线的物理接口、低层通信协议和与PC机紧耦合式通信接口的实现更多还原

【Abstract】 This paper investigates the application principle and the realization methed of the CAN bus in the micro computer monitor system of the railway signal to improve the performance of data communication of the monitor system. The emphasis is put on a communication adapter of intelligent CAN bus which is the core of the system. It takes charge of connecting with CAN bus in the level of physical layer and achieves the lower communication protocol,and realizes close coupling connection with PC computer.更多还原