基于无线传输技术的汽车智能仪表设计

针对传统仪表显示采用线束连接，导致汽车仪表系统的抗电磁干扰能力弱、准确率和精度等较低的问题，提出一种基于CAN无线总线技术的智能仪表系统。结合汽车仪表工作原理，根据智能仪表系统的功能需求，分别从硬件和软件方面对智能仪表系统进行设计；利用CAN无线通信技术实现汽车数据采集与不同电子器件的通信。最后，通过脉冲信号模拟对智能仪表系统进行测试，验证了该设计方案的可行性，为智能技术的应用提供参考。

Design of automobile intelligent instrument based on wireless transmission technology

The harness connection in the traditional instrument display always results in automobile meter systems of anti electromagnetic interference ability ,relatively low accuracy and precision .The paper puts forward a kind of intelligent instrument system based on CAN bus wireless technology .In combination with the work principle of auto instrument , it analyzes the functional requirements of the intelligent instrument system , designs respectively hardware and software of intelligent instrument system , applies wireless communication technology to realize vehi-cle data acquisition with different electronic communication device , and uses digital filtering method to realize the system anti-interference.Finally, it tests the intelligent instrument system based on pulse signal simulation , verifies the feasibility of the design ,provides the reference for the application of intelligent technology .