Research and implementation of visual helicopter coning angle measurement system

被引：3
|
作者：
Luo, Yi [1 ,2 ,3 ]
Yang, Kun [1 ,3 ]
Shang, Chunxue [4 ]
Yang, Chunbao [5 ]
机构：
[1] Yunnan Normal Univ, Sch Informat Sci & Technol, Kunming 650092, Yunnan, Peoples R China
[2] Yunnan Normal Univ, Sch Tourism & Geog Sci, Kunming 650092, Yunnan, Peoples R China
[3] Yunnan Normal Univ, GIS Technol Res Ctr Resource & Environm Western C, Minist Educ, Kunming 650092, Yunnan, Peoples R China
[4] Yunnan Normal Univ, Acad Adm, Kunming 650500, Yunnan, Peoples R China
[5] Harbin ShuangLong Aeronaut Engn Ltd Co, Harbin 150080, Peoples R China
来源：
MEASUREMENT | 2016年 / 80卷
关键词：
Visualisation; Helicopter coning angle; Reflective target; Image process; NONLINEAR-SYSTEMS;
D O I：
10.1016/j.measurement.2015.11.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A visual helicopter coning angle measurement method is presented in this paper. First, a reflective target is pasted onto the helicopter rotor tip; second, a high-speed industrial camera and LED strobe light are used to obtain grayscale images of each blade's reflective target when the rotor is rotating; Third, target grayscale images are processed using the Otsu threshold segmentation algorithm to obtain binarized images. Next, the eigenvalues of the images are obtained using Sobel operator edge detection method, so the height difference of the reflective target and the helicopter coning angle can be calculated. A prototype measurement system is designed to prove the feasibility and scientific validity of the method. Experimental results show that the system is easy to operate, and the measurement accuracy is approximately 0.5 mm. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：154 / 162
页数：9
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