基于单片机的主从式声音导引系统  

Master-Slave Sound Guidance System Based on MCU

作　　者：杜海艳[1] 张永德[1] 姜金刚[1] 

机构地区：[1]哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨150080

出　　处：《自动化技术与应用》2010年第6期69-73,共5页Techniques of Automation and Applications

摘　　要：声音导引在生命探测与定位中具有重要的现实意义,本文以单片机为核心,基于无线传输理论,设计制作了一声音导引系统。系统含一个以车载移动声源为核心的主机系统和一个以声音接收器为核心的从机系统。主从机均采用STC89C52单片机作为控制核心,从机通过声控电路接收来自主机的声音信号,根据两个接收器接收到的信号的时间差来判断声源位置,然后将此位置信息通过无线方式传送给主机,主机据此控制电机的运转,使之运动到目标位置。实验证明,系统结构简单可靠,性能良好,并且集高可靠性、高性价比及低功耗于一身。Voice guidance has important practical significance in the detection and location of life.This paper designs a voice guidance system based on MCU and wireless transmission theory.The system consisted of a master control system taking a vehicular moving sound source as core,and a slave control system based on audio receivers.The master and slave both selected STC89C52 microcontroller as control core.The slave received sound signal from the master through sound control circuit,and determined the sound source location according to the time difference of two sound signals from audio receivers,then wirelessly transmitted the position information to the master,so as to operate the motor to move to the target location.Experiments show that the system structure is simple,reliable;performance is good.Further more,the system is characterized by high reliability,high performance-cost ratio and low power consumption.

关 键 词：声音导引 STC89C52 无线传输 直流电机 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]