CAJ | 학술논문

分析了在平面三角形阵列中利用超声波时差法测量风速风向的基本原理，设计了基于ARM和CPLD微处理器的无线风速仪。给出了以LPC1768和EPM240T100C5芯片为核心的超声波无线风速仪的设计实现方法。重点阐述了超声波驱动电路、信号调理电路、无线收发模块以及系统软件的设计。实验结果表明，该系统可以精确测量风速与风向，且工作可靠稳定。
분석료재평면삼각형진렬중이용초성파시차법측량풍속풍향적기본원리，설계료기우ARM화CPLD미처리기적무선풍속의。급출료이LPC1768화EPM240T100C5심편위핵심적초성파무선풍속의적설계실현방법。중점천술료초성파구동전로、신호조리전로、무선수발모괴이급계통연건적설계。실험결과표명，해계통가이정학측량풍속여풍향，차공작가고은정。
The principle of measurement of wind speed and direction using ultrasonic Time-of-Flight was introduced in the triangle array. The design of ultrasonic anemometer based on ARM and CPLD was described. The method of ultrasonic anemometer based on LPC1768 and EPM240T100C5 was given. The driving circuit,signal conditioning circuit,wireless transceiver module and the software design were introduced. The experiments testify the system can accurately measure wind speed and direction. It also has other advantages such as good reliability.