基于无线传输技术的汽车智能仪表设计

摘要

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 .%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。