期刊名称：International Journal of Hybrid Information Technology
印刷版ISSN：1738-9968
出版年度：2016
卷号：9
期号：8
页码：323-332
出版社：SERSC
摘要：This paper proposes a new method for measuring the wind speed in the pipe, which overcomes the shortcomings of the traditional mechanical instrument with lower accuracy and ultrasonic measurement method with the high cost, it has the advantages of low cost and high precision. This paper introduces the principle of pendulum method to measure wind speed, the wind speed in the pipe is calculated by the space angle based on the spatial geometric relationship. On the other hand, the space angle is obtained by horizontal angle and vertical angle, which are gathered by the cameras placed in the ends of the bracket. Image processing technology is an important part of this method, including the image gray processing, binarization processing, edge detection and Hough transform steps, at last, the experimental results proved the feasibility of this method.
