CAJ | 학술논문

系统以STM32处理器为控制核心，主要包含超声波发射电路、超声波接收电路、温度补偿模块和液晶显示电路等电路。通过测量超声波发射到遇到障碍物返回的时间差，计算出距离和速度。采用DS18B20检测环境温度，修正超声波传播速度误差。经测试，系统可测量5 m内的距离和100 cm/s内的速度。
계통이STM32처리기위공제핵심，주요포함초성파발사전로、초성파접수전로、온도보상모괴화액정현시전로등전로。통과측량초성파발사도우도장애물반회적시간차，계산출거리화속도。채용DS18B20검측배경온도，수정초성파전파속도오차。경측시，계통가측량5 m내적거리화100 cm/s내적속도。
The system takes the STM32 processor as its control core,and mainly includes ultrasonic transmitting circuit, ultrasonic receiving circuit,temperature compensation module and liquid crystal display circuit. The distance and speed are cal?culated by measuring the time difference between ultrasonic emission and return. DS18B20 is used to detect the ambient temper?ature,and correct the ultrasonic propagation velocity error. The testing results show the system can measure the distance within 5 m and speed in 100 cm/s.