Title :
The Horizontal angle measurement of TBM guidance system
Author :
Wang Chenguang ; Li Yueqiang
Author_Institution :
Beijing Inf. Sci. & Technol. Univ., Beijing, China
Abstract :
In real-time measurement process of shield machine´s Guiding system, Horizontal angle measurement has always been a problem for attitude. In order to achieve the level of real-time measurement of the angle, I designed a self-contained laser target based on convex lens´ focusing characteristics. Using laser and industrial camera I realized the measurement of angular by image processing method. Experimental data show that the measuring angle can range ±5 degrees, accuracy can reach 1 mrad. The results can satisfy the demands of underground tunnel construction.
Keywords :
CCD image sensors; angular measurement; boring machines; computerised instrumentation; lenses; measurement by laser beam; optical focusing; tunnels; TBM guidance system; angular measurement; convex lens focusing characteristics; horizontal angle measurement; image processing method; industrial camera; laser camera; real-time measurement; self-contained laser; shield machine guiding system; tunnel boring machine; underground tunnel construction; Charge coupled devices; Lenses; Optical imaging; CCD; Horizontal angle measurement; Image processing; Measuring Angle; Shield;
Conference_Titel :
Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on
Conference_Location :
Shengyang
Print_ISBN :
978-1-4799-2564-3
DOI :
10.1109/MEC.2013.6885135
