基于CAN总线的数字转换卡设计研究

Design of the Conversion Card Based on CAN Bus

本文研究了现场总线CAN的原理和实现方法,并将其应用在传统仪表的改造中。从而把模拟信号方便、可靠地转换成符合CAN总线协议的数字信号,使传统仪表实现了数字化、网络化。

This paper introduces a kind of conversion card which applies the CAN bus technology to change analog signals into digital signals, so it is very convenient to refit a traditional instrument into an intelligent one. The whole design can be divided in two parts, the hardware and software. Embedded this conversion card, the instrument can be connected into network and its qualities are improved greatly.