基于短距通信的嵌入式CAN网络测试系统设计  

Embedded Test System of CAN-Bus Based on Wireless Communication

作　　者：张庆祥[1] 宋占伟[1] 夏茂盛[1] 

机构地区：[1]吉林大学电子科学与工程学院,长春130012

出　　处：《吉林大学学报（信息科学版）》2012年第3期240-244,共5页Journal of Jilin University（Information Science Edition）

基　　金：吉林省科技支撑计划重点基金资助项目(20100314)

摘　　要：针对小型工业生产车间以CAN(Controller Area Network)总线互联的现场设备网络的实时监测难的问题,提出一种基于无线短距通信的嵌入式CAN网络测试系统的设计方案。该系统以LPC2129处理器为核心平台,搭载无线通信模块nRF2401,辅以LCD(Liquid Crystal Display)显示器等外围设备,采用支持多任务的μC/OS-Ⅱ实时操作系统作为软件平台,软件编程完成通信测试程序和无线数据发送程序。实验表明,该系统实现了现场CAN总线网络通信测试和无线数据传输,解决了在小空间内布线困难条件下的现场总线实时监测问题。Considering the difficulty of real-time monitoring the field equipments interconnected with CAN（Controller Area Network） bus in the small scale industrial production workshop,we put forward a design scheme of embedded test system of CAN-bus based on wireless communication. The test system uses LPC2129 microprocessor as the central controller, uses μC/OS-Ⅱ operating system as software platform,supplemented by nRF2401 modular and LCD（Liquid Crystal Display） monitor, etc. Software programming completeed communication test program and wireless data transmitting program. Experi- mental results show that the system can realize CAN field bus network communications test and wireless data transmission. The test system solved the problem of real-time CAN-bus monitoring in a small space of wiring in difficult condition.

关 键 词：嵌入式系统 无线通信 CAN总线 nRF2401模块 

分 类 号：TN925[电子电信—通信与信息系统]