Hump yard double-track vehicle speed measurement method

A vehicle and track technology, applied in the field of radar, to achieve the effect of solving the interference of rainwater

Pending Publication Date: 2022-03-01
中国铁路上海局集团有限公司徐州电务段 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for measuring the speed of vehicles in the double lanes of the hump yard, so as to solve the problem in the prior art that each lane of the hump yard is equipped with a radar

Method used

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  • Hump yard double-track vehicle speed measurement method

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Embodiment

[0025] This embodiment provides a method for measuring the speed of vehicles on two-lane lanes in a hump field, the method comprising the following steps:

[0026] Step 1. Make the radar body adopting the frequency modulation continuous wave working system installed on the center line of the double track in the hump yard, and the installation position conforms to the railway limit regulations, and the detection direction of the radar body is the same as the vehicle slipping direction on the track;

[0027] Step 2. Establish the reference motion trajectory model of the vehicle in the decelerator section of the hump field (because the radar installation position is fixed and the vehicle travel route is fixed, the reference trajectory of the vehicle in the decelerator section can be established accurately. The measured trajectory and the pre-established The reference trajectory of the reducer section can be compared with the reference trajectory, which can accurately distinguish t...

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Abstract

The invention discloses a hump yard double-track vehicle speed measurement method, which relates to the technical field of radars, and is characterized in that a radar body adopting a frequency modulation continuous wave working mode is mounted on a hump yard double-track center line, and the detection direction of the radar body is the same as the humping direction of a vehicle on a track; establishing a reference motion trail model of vehicle running in a hump field speed reducer section; a radar body obtains continuous measurement information of corresponding distances, speeds and angles for all running vehicles in a detection power coverage range of the radar body, an extended Kalman filtering algorithm abbreviated as EKF is adopted to obtain an actual measurement track of each vehicle, and multiple groups of running vehicles in a hump field are identified, positioned and distinguished through a track tracking method; comparing the actually measured track with the reference motion track model to obtain measurement information of the vehicle on the target lane; according to the invention, double-track vehicle detection can be effectively carried out on the hump parking lot, and the defect that a single track needs to be equipped with a radar is avoided.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a method for measuring the speed of vehicles on double lanes in a hump yard. Background technique [0002] Radar speed measuring equipment is one of the key measuring equipment of the automatic control system of the railway hump field. Since the mid-1990s, domestic railway hump fields have mainly used the railway hump millimeter-wave speed-measuring radar disclosed in patent CN94204013.9. This radar is designed based on horn antennas, high-frequency components and discrete devices, and is an analog speed-measuring radar. In long-term use, the analog railway hump millimeter-wave speed measuring radar has exposed the following defects: First, the radar speed measurement is easily interfered by vehicles in the adjacent road and vehicles in front and behind the road. There will always be vehicle pinching accidents caused by interference from adjacent roads; second, radar speed measure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/58G01S13/88G01S13/08G01S7/36
CPCG01S13/58G01S13/08G01S13/88G01S7/36
Inventor 崔怿晨孟琳丁恩山韦勇继藏远东任杰
Owner 中国铁路上海局集团有限公司徐州电务段
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