CAJ | 학술논문

介绍了一种测量风传种子沉降速度系统的设计。系统采用MC9S12XS128单片机为主控芯片，利用两个线性CCD传感器分别采集种子下落过程中的视频信号，通过图像边缘检测算法精确捕捉种子下落过程中的始末两个时刻，利用加权算术平均法计算出种子沉降速度值，同时拟合出沉降高度与速度的曲线。实际测试表明，本系统具有测量精度高、抗干扰能力强、检测效率高、操作简单等优点。
개소료일충측량풍전충자침강속도계통적설계。계통채용MC9S12XS128단편궤위주공심편，이용량개선성CCD전감기분별채집충자하락과정중적시빈신호，통과도상변연검측산법정학포착충자하락과정중적시말량개시각，이용가권산술평균법계산출충자침강속도치，동시의합출침강고도여속도적곡선。실제측시표명，본계통구유측량정도고、항간우능력강、검측효솔고、조작간단등우점。
This paper introduces a kind of designing and Implementation of measuring wind dispersal seed settle-ment velocity system. Based on the MC9S12XS128, the system can get the seed falling video signal by linear CCD, and it can acquire seed settlement time after processing signal with image edge detection algorithm. Be-sides, the system can calculate the final settlement velocity by the weighted arithmetic average and also fitting the curve of sedimentation height and speed. The test shows that the intelligent measurement system has the fea-tures of high precision, strong disturbance attenuation, high efficiency, and easy operation and maintenance, and that it can improve the design and performance of products, which can be widely used. The system provides a practical way to measure wind dispersal seed settlement velocity.