基于运动检测的旋翼共锥度测量方法  

Measurement Method for Rotor Common Taper Based on Motion Detection

作　　者：齐美彬[1,2] 陆磊[1] 李新民[3] 杨勋[1] 蒋建国[1,2] 

机构地区：[1]合肥工业大学计算机与信息学院,合肥230009 [2]安全关键工业测控技术教育部工程研究中心,合肥230009 [3]中国直升机设计研究所,江西景德镇333001

出　　处：《计算机测量与控制》2014年第3期684-685,689,共3页Computer Measurement &Control

基　　金：合肥工业大学重大项目预研基金(2011HGZL0001)

摘　　要：对于直升机共锥度测量提出了基于运动检测的一种测量新方法;在直升机桨叶水平方向放置一台摄像机,进行图像采集;用自适应阈值帧差法对采集图像进行运动检测,对检测的轮廓进行取均值的操作,将均值后的像素点通过最小二乘法进行直线拟合,直线的斜率即可间接表示桨叶的角度;最后对实验结果给出了误差分析,结果表明角度误差可控制在0.1°。On the basis of motion detection, a new method for the helicopter rotor common taper measurement was proposed. Placing a video camera in the horizontal position of helicopter blades to capture images and detecting the motion outlines by using frames difference with an adaptive threshold. Processing the outlines with mean method, the results were used for line fitting through the method of least squares. The line~ s slope could represent the blade＇ s angle indirectly. The experiment error was analyzed and the results showed that the angle er- ror could be controlled within O. 1°~.

关 键 词：帧差 运动轮廓 直线拟合 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]