说明：  CAN_bus简介 CAN，全称为“Controller Area Network”，即控制器局域网，是国际上应用最广泛的现场总线之一。最初，CAN被设计作为汽车环境中的微控制器通讯，在车载各电子控制装置ECU之间交换信息，形成汽车电子控制网络。
(CAN_bus About CAN, called the " Controller Area Network" , Controller Area Network, is one of the most widely used international fieldbus. Initially, CAN is designed as a micro-controller communications in the automotive environment, in-vehicle electronic control unit ECU between the exchange of information, the formation of the automotive electronic control network.)