基于DSP的嵌入式CAN/Ethernet网关设计  

Design of embedded CAN-ethernet gateway based on DSP

作　　者：赵晓军[1] 曹勇[1] 苏海霞[1] 任明伟[1] 

机构地区：[1]河北大学电子信息工程学院,河北保定071002

出　　处：《计算机工程与设计》2009年第3期542-543,646,共3页Computer Engineering and Design

基　　金：河北省科技厅科技支撑计划基金项目(062135132);河北省教育厅重点科技基金项目(2005002D);河北大学博士基金项目(Y2005052)

摘　　要：为了实现现场设备与以太网之间的数据通信,使信息交换深入到工业现场,做到底层设备与以太网的无缝连接,提出基于DSP的CAN总线与以太网互联的方案。介绍了DSP与以太网接口方法和CAN/Ethernet间的协议转换方法,采用嵌入式网络接口设备在网络环境下的自识别、自描述和互操作性技术,实现网络传感器动态配置和重构功能。测试结果表明,嵌入式CAN/Ethernet网关满足自动化设备维护系统的实时性和可靠性要求。In order to accomplish the data exchange between field device and Ethemet, make an in-depth exchange of information to the industrial scene, achieve the underlying equipment and the Internet to connect seamlessly, a CAN-Ethernet connection scheme based on DSP is put forward. The DSP and Ethernet interface methods and CAN/Ethernet protocol conversion methods are presented, to realize the sensor network configuration and dynamic reconfiguration features, it uses self-identification, self-described technology and intero- perability of embedded network interface devices under network environment. Experimental results show that embedded CAN/Ethernet network has a good validity and reliability to meet the demand for industrial control networks.

关 键 词：CAN 以太网 网关 嵌入式 协议转换 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]