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Method and device for detecting number of vehicle axles

A detection method and vehicle technology, which is applied in the field of intelligent transportation, can solve the problems of wheel axle judgment and weak wheel axle shape description, and achieve the effect of accurate detection

Active Publication Date: 2015-10-28
WUHAN WANJI INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For long-distance multi-lane and fast-moving vehicles, the number of data frames and points measured to the wheel axle is often very small, and the shape description of the wheel axle is weak, so it is difficult to judge the wheel axle directly from the shape

Method used

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  • Method and device for detecting number of vehicle axles
  • Method and device for detecting number of vehicle axles
  • Method and device for detecting number of vehicle axles

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Embodiment Construction

[0045] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0046] figure 1 It is a flowchart of a method for detecting the number of vehicle axles in an embodiment of the present invention; refer to figure 1 , the method includes:

[0047] S101: Obtain several frames of ranging data collected by the laser ranging sensor on the side of the vehicle body to be tested;

[0048] It should be noted that the laser ranging sensor can be installed on one side of the lane, or above the isolation strips of multiple lanes, and the installation height of the laser ranging sensor can be changed according to the number of lanes covered. , selected on the principle of being able to detect the side of the vehicle body and reducing the occlusion...

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Abstract

The invention discloses a method and a device for detecting the number of vehicle axles, and relates to the technical field of intelligent transportation. The method comprises the steps of acquiring a plurality of frames of ranging data of the side of the body of a to-be-detected vehicle acquired by a laser ranging sensor, determining the demarcation point of each frame of ranging data and the lane where the to-be-detected vehicle is, calculating the horizontal distance between the demarcation point of each frame of ranging data and the laser ranging sensor to obtain a distance sequence, acquiring local minimums of the distance sequence and counting the local minimums, and determining the number of the vehicle axles of the to-be-detected vehicle according to the number of the local minimums. Through cooperation between the steps, the number of the vehicle axles does not need to be detected according to the shape of the axles, and the number of the vehicle axles can be detected easily and precisely.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a method and a device for detecting the number of wheel axles of a vehicle. Background technique [0002] The number of vehicle axles is an important basis for vehicle model identification and charging by axle. There are two ways to identify the axle, contact and non-contact. Contact wheel axle identification devices often use mechanical or electrical sensors. Such devices require road-breaking construction and are difficult to adapt to harsh environments. They are also susceptible to corrosion and electromagnetic interference, have a short service life, and are difficult to guarantee reliability. Non-contact wheel axle identification devices often use grating or laser sensors close to the vehicle to identify wheel axles, which are difficult to apply to vehicle wheel axle identification in multi-lane free flow. [0003] Limited by the measurement frequency an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/015G08G1/04
Inventor 黎俊超邓永强房颜明武宏伟张英杰杨勇刚
Owner WUHAN WANJI INFORMATION TECH
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