Master-Slave Sound Guidance System Based on MCU

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.