Train catenary height non-contact measuring system based on parallel laser radars
A laser radar and measurement system technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of laser radar affecting measurement results, ultrasonic radar sensors are susceptible to other sound wave interference, etc., to improve wire positioning and measurement speed, Fast measurement results, reduced complexity and the effect of
Inactive Publication Date: 2015-07-01
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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[0003] In order to solve the problems that the ultrasonic radar sensor is easily interfered by other sound waves in the existing catenary wire measurement method, and the measurement results are easily affected by other stray lights when the laser radar is used, the present invention provides a train catenary height based on parallel laser radar non-contact measuring system
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[0022] Specific implementation mode 1. Combination Figure 1 to Figure 4 Describe this embodiment, the fast and high-precision measurement system of catenary height based on parallel laser radar, including laser radar array, GPS sun altitude angle positioning module, data acquisition and processing module, laser radar alignment angle adjustment structure and catenary height output module.
[0023] The entire measuring device is fixed at a specified distance in front of the pantograph device on the top of the train. The specified distance ranges from 1m to 2m;
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The invention discloses a train catenary height non-contact measuring system based on parallel laser radars, relates to the technical field of laser ranging, and solves the problems that existing ultrasonic radar sensors are easily interfered by other sound waves and are slow in response as compared with the laser radars, and the like. The train catenary height non-contact measuring system a laser radar array, a GPS solar altitude positioning module, a data collecting and processing module, a laser radar alignment angle adjusting structure and a catenary height output module. The train catenary height non-contact measuring system has the advantages that multiple levels of laser radars are used to perform equal-interval circulation scanning and measuring in a parallel pipeline manner, self-adaptive fast positioning can be performed on catenaries with different stagger values, and the limitation that a single laser radar is long in measuring cycle can be avoided; in addition, by the GPS solar altitude positioning module, the alignment angle of the laser radar system is adjusted according to the actual operation direction of a train to prevent the laser radar system from being affected by direct strong sunlight.
Description
technical field [0001] The invention relates to the technical field of laser distance measurement, in particular to a fast and high-precision measurement system for the height of railway catenary wires based on parallel laser radar and solar altitude angle inverse tracking technology. Background technique [0002] When the electric locomotive is running, it obtains continuous electric energy from the catenary through the pantograph at its top. However, during the running of the train, due to the influence of external terrain fluctuations, wiring structure and external environmental factors, the height of the catenary varies to varying degrees, which in turn leads to frequent electric arcs due to the untimely adjustment of the pantograph lap angle. Put some, affect energy efficiency utilization. Therefore, certain technical means must be adopted to quickly predict the current catenary height in a short distance while the train is moving, and provide real-time feedback for th...
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IPC IPC(8): G01B11/02
Inventor 张艳超赵建韩希珍孙强
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI