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Study of the Location Method of Airport Pavement Detection Vehicle Based on Image Processing Technology

Author: LiuShengTao
Tutor: FengYing
School: National University of Defense Science and Technology
Course: Optical Engineering
Keywords: Locate Road sewn Image processing LabVIEW IMAQ Vision
CLC: TP274
Type: Master's thesis
Year: 2008
Downloads: 61
Quote: 0
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Abstract


With the development of computer, communications , digital image processing , and optoelectronic technology , airport pavement detection system has been developed for the integration of image processing , laser measurement , GPS positioning , database and network technologies such as intelligent systems , which GPS is mainly used for the detection system positioned itself . Accurate detection of the runway surface is extraordinarily important for the airport runway , on a regular basis , but on the runway of the military airport in wartime or under special circumstances detection can not be applied when the GPS location , so explore a use of the runway itself characteristics inspection vehicle the method of positioning is very necessary. The issues raised for airport runway Youdao seam characteristics Road sewn reference positioning method . The method to extract debut seam crosses on the runway image acquisition based on image processing technology to determine the distance and angle of deflection detect cars moving on the runway , according to the changes in the position and orientation of the cross in order to achieve the airport runway inspection vehicle positioning . Firstly, the hardware part of the positioning system design , including the selection of CCD digital camera , wide-angle lens and IEEE1394 image acquisition card to solve the problem of the camera shooting wide pavement the detection vehicles traveling process . Secondly , based on LabVIEW and IMAQ Vision platform designed image acquisition , compression, correction, filtering , Canny edge detection and Hough transform image processing algorithms , Road sewn cross in the effective extraction, and writing distance and Road block decision body position anticipate the program calculates the position coordinates of the detected vehicle on the runway and body toward the corner , and the completion of the inspection vehicle positioned itself . Finally, the use of the LabVIEW VISA and TCP function , respectively, both serial and TCP data transmission method to send and receive program design , real-time positioning data upload . Derived by the analysis of the experimental data , the positioning method procedures Road sewn reference positioning cycle to 125ms , positioning error is less than 0.5m, to meet the requirements of the system positioning , the method used to detect vehicles positioned itself .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system
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