This paper briefly introduces the foreign technical current situation and the developing trend on this field, and simply introduces the work that have been done on the automotive multiplex system.

本文简要介绍了国内外在这方面的技术现状和今后的发展趋势，并将江苏理工大学汽车学院在汽车多路传输技术方面所做的工作进行简单的介绍。

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Using single chip as the core, the paper studies a way to realize multiplex low speed data serial transmission, presents hardware connection chart, expounds work principle and software design idea.

以单片机为核心，研究多路低速数据串行传输的一种实现方法，给出硬件连接图，阐述各部分工作原理及软件设计思路。

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