具有高可靠性和灵活性的CAN总线控制系统的设计与开发

The design and development of CAN bus control system with high reliab ility and flexibility

介绍了一套CAN总线控制系统的研究与开发。其中 ,由于把与PC机进行通讯的PC适配卡设计为一种能自主运行的接口控制卡 ,可以在PC死机的情况下照常运行 ,提高了系统的可靠性 ;此外 ,在节点控制器的设计中 ,采用了二级总线的结构形式 ,CAN控制模块和I/O模块相互独立配置 ,用户可以灵活组合 。

This paper introduces a kind of CAN bus control system. On the one han d, because its adapter card designed to communicate with PC can work autonomousl y and can even operate normally when PC cracks down, the reliability of the syst em is increased extremely. On the other hand, due to its two-level bus structure , the control modules and the I/O modules can be configured independently, so th e flexibility of the whole system is also improved.