一种基于CAN总线的电子标签系统

A Electronic Tag System Based on CAN Bus

电子标签技术广泛地应用于物流领域。作为一种相对简单的通讯协议,在电子标签系统中常采用的RS485串行通信口具有一定的局限性。提出用CAN总线的方式实现电子标签系统中与主机系统的数据通信,有效地克服了多节点同时发送请求的情况,提高了系统的可靠性与实时性。

The Electronic Tag technical is the key technology in Logistic which is widely used in Computer Serial Comunication Technology. As a simple protocol,RS485 has some limitations in some aspects which is usually used in Electronic Tag system. A architecture figure of the hardware design of the connection is presented based on CAN Bus which has the properties of high communication speed, long distance, good flexibility, strong error detecting ability and low error code rate.