A Photoelectric Dynamic Measuring Method for Railway Inspection Vehicle Platform Shaking
A dynamic measurement and photoelectric measurement technology, applied in railway vehicle shape measuring instruments, railway car body parts, railway auxiliary equipment, etc. The effect of fast speed and high measurement accuracy
Active Publication Date: 2018-01-30
NAT UNIV OF DEFENSE TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The railway inspection vehicle is a device for dynamically measuring the geometric parameters of the railway. However, all kinds of existing railway inspection vehicles have certain limitations. The rail inspection trolley with absolute settlement measurement capability adopts the hand-push mode, which has low operating efficiency and relies heavily on high-speed railways. Engineering measurement plane control network; the faster comprehensive inspection vehicle can only measure the relative unevenness of the track, but cannot detect the absolute settlement of the railway foundation
The absolute settlement monitoring of railway bridges and subgrades needs to meet the high requirements of 2-5 mm measurement accuracy. At present, there is no method and means for vehicle-mounted automatic high-speed dynamic measurement to achieve this accuracy at home and abroad.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The invention utilizes multiple sets of rail displacement precision photoelectric measurement systems installed on the detection vehicle equipment platform to work together to obtain the relative displacements at multiple points on the rails, measure the relative position and attitude information of the rail surface and the measurement platform, and realize a railway Photoelectric dynamic measurement of vehicle platform shaking.
[0016] figure 1 In the above, the high-precision displacement photoelectric measurement system at the four positions of the railway inspection vehicle platform measures the displacement of the equipment platform relative to the four points A, B, C, and D of the rail track, so as to obtain the relative pose relationship between the on-board equipment coordinate system and the rail plane coordinate system . Assume that the four points A, B, C, and D are in the rail plane coordinate system ( The positions within the system are respectively (...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a photoelectric dynamic measurement method for shaking of a railway detection vehicle platform. Multiple sets of rail displacement precision photoelectric measurement systems installed on the detection vehicle equipment platform work in a joint mode, relative displacement of a plurality of points on a rail can be obtained, and relative position and attitude information dynamic measurement of the rail surface and the measurement platform is achieved. According to the photoelectric dynamic measurement method for shaking of the railway detection vehicle platform, each rail displacement precision photoelectric measurement system is composed of a line laser device, a point laser device and a camera; the precision photoelectric displacement measurement method in which the point laser displacement measurement technology and the line laser displacement contour triangulation technology are combined is adopted, and precise displacement of the laser points is measured; the section contour of the rail is obtained through line laser triangulation; and the positions of the laser points on the rail surface contour are determined according to the image relationship between point lasers and line lasers.
Description
technical field [0001] The invention relates to the field of dynamic monitoring of rail traffic and photoelectric measurement of platform shaking of a detection vehicle, in particular to a photoelectric dynamic measurement method for platform shaking of a high-speed railway detection vehicle. The method of the present invention utilizes the photoelectric equipment on the detection vehicle to dynamically measure the shaking of the detection vehicle platform relative to the rail, and obtains the relative pose of the detection vehicle platform / railway with high precision, and can establish the relative relationship between the detection vehicle platform equipment and the rail, and provides high precision for the use of rail inspection vehicles. Measure the geometric parameters of high-speed railway tracks and railway foundation settlement to provide key technical support. Background technique [0002] The railway inspection vehicle is a device for dynamically measuring the geom...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B61K9/08
CPCB61K9/08
Inventor 于起峰张红良尚洋张小虎杨夏
Owner NAT UNIV OF DEFENSE TECH