基于CAN总线的汽车仪表信息采集模块设计
张志，王利，李俊锋，高祥
（中北大学 机电工程学院，山西 太原 030051）
摘要：汽车仪表信息采集模块主要解决的是汽车仪表信息采集、通信和控制问题。CAN总线相比于以往的RS－485总线技术具有更快速、更稳定、更精确等优点，而且还具有报文纠错重发功能。设计了一种基于CAN总线的汽车仪表信息采集模块，通过AT89C55WD单片机对CAN总线进行控制，设计了硬件电路图和相应的软件程序，取得了可靠稳定的测试效果。
关键词：汽车仪表；CAN；信息采集；单片机
中图分类号：U260.5 文献标志码：A 文章编号：1006－0316 (2013) 09－0049－05
The design of automobile meter of information collecting module based on CAN bus
ZHANG Zhi，WANG Li，LI Jun-feng，GAO Xiang
( School of Mechatronics Engineering, North University of China, Taiyuan 030051, China )
Abstract：This design is the content of the automobile meter based information collecting module, mainly to solve the message of the car is collected, communication, information transmission and control of the problem. Information collection with CAN bus (Controller Area Network) technology is more quickly, more stable, and more precisely, but also has the other advantages such as the function of error message re-issue than RS - 485 bus technology. This paper designs a module with CAN bus technology. With the control of the MCU AT89C55WD, the CAN bus will collect the data. Hardware circuit and software program was designed, also the very reliable test result was obtained.
Key words：motormeter；CAN；information acquisition；MCU
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收稿日期：2013－03－26
作者简介：张志（1988－），内蒙古呼和浩特人，硕士研究生，主要研究方向为机电系统控制技术。
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