基于MSP430单芯片的倒车雷达模块设计

Design of reversing radar based on a single MSP430 chip

本文介绍了一种单芯片实现的倒车雷达模块设计方案,除驱动电路之外的所有电路功能都通过MSP430F2274来实现;发送的超声波遇障碍物反射,接收的超声波经过滤波、放大、检波等处理后被检测,进行温度补偿从而计算出精准距离;该模块电路简单、成本低、功耗低、测距准确、受温度变化影响小、工作稳定可靠。

This article introduces a reversing radar module in which, except for the driving circuit, all other circuit functionalities are implemented through a single chip MSP430F2274 micro-controller. The ultrasonic waves sent by the generator are reflected by the obstacles, received by the receiver, filtered, amplified, demodulated, and then measured, converted into accurate distance with temperature compensation. This module is qualified by its simple circuit, low cost and power consumption, accurate distance measurement, low temperature impact, stable and reliable operation.