Abstract：The development of railway boundary measurement technology is briefly analyzed, the three main methods of dynamic boundary acquisition are summarized, and their advantages and disadvantages are compared. A monocular vision measurement scheme based on digital camera is proposed, and a non-contact measurement method of dynamic bound is realized. The measurement principle, target characteristic analysis, spot position calculation and high-speed image storage system design are introduced. According to the requirements, the key parameters of camera and image acquisition card are given. The requirement of continuous write speed is analyzed, the solution is porposed, and the continuous write speed of high-speed storage system is tested. The repeatability of image measurement and the error of displacement measurement are verified by several experiments, which meet the requirements of design and application. The measurement capability of the system is verified by vehicle test.
甘晓川,邹志,马骊群. 动态包络线非接触测量系统研究[J]. 计量学报, 2018, 39(6A): 22-.
GAN Xiao-chuan,ZOU Zhi,MA Li-qun. Research on Non-contact Measurement System of Dynamic Envelope. Acta Metrologica Sinica, 2018, 39(6A): 22-.
2018, Vol. 39 
