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Axle recognition method and system for axle beam

An identification method and bridge technology, which are applied in the field of bridge axle identification methods and systems, and can solve the problems of small application range, inconvenient installation, and poor identification accuracy of FAD sensors.

Active Publication Date: 2016-06-08
HUNAN UNIV
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  • Abstract
  • Description
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Problems solved by technology

[0008] The purpose of the present invention is to provide a method and system for axle identification of bridges to solve the technical problems of poor identification accuracy of FAD sensors, inconvenient installation and small application range

Method used

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  • Axle recognition method and system for axle beam
  • Axle recognition method and system for axle beam
  • Axle recognition method and system for axle beam

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Embodiment Construction

[0079] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0080] The user referred to in the present invention is the acquirer of the identified axle information, for example, a manager who directly pays attention to the axle information or a BWIM system that uses the axle information to carry out vehicle weighing. The coordinate system used is: the longitudinal direction of the bridge (vehicle driving direction) is the positive direction of the x-axis, also known as the longitudinal direction of the bridge; the vertical direction is the positive direction of the z-axis, also known as the vertical direction of the bridge; the vertical x-axis in the horizontal plane is y Axis, also known as the transverse direction of the bridge; x, y, z form a right-handed coordinate system. The nouns involved in the prese...

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Abstract

The invention discloses an axle recognition method and system for an axle beam. The method comprises the steps that two section sets containing 4-6 sections are marked in the lengthwise direction of the axle beam to form two virtual simply supported beams; axle beam time-interval responses of the two section sets are collected and measured, two isolating responses are calculated and obtained according to the time-interval responses, and the two isolating responses are used for constructing two response time-interval curves respectively; statistics is carried out on the local peak quantity on the response time-interval curves to obtain the number N of vehicle axles or axle sets. The system comprises sensors and a data processing operation center, wherein the sensors are installed on the two section sets containing 4-6 sections and used for converting the axle beam time-interval responses into electrical signals to be output, and the data processing operation center is used for calculating the isolating responses according to the time-interval responses and constructing the response time-interval curves, so that the number N of the vehicle axles or axle sets is obtained. According to the method, the axle-beam overall responses are used for recognizing the axle distance of vehicles, the vehicle recognition result is more reliable, and then the vehicle speed and the axle distance can be recognized accurately.

Description

technical field [0001] The invention relates to the fields of dynamic weighing, bridge dynamic weighing and vehicle load monitoring, in particular to an axle identification method and system for bridges. Background technique [0002] At present, the main methods of weighing vehicles are: [0003] 1) Traditional weighbridge, this method has low identification efficiency (the vehicle needs to stop or drive at a very low speed), and a special weighing station needs to be set up; [0004] 2) WIM (Pavement weight-in-motion, road-type dynamic weighing), this method is inconvenient to install and maintain, requires mid-section traffic, and has a low service life; [0005] 3) BWIM (Bridgeweigh-in-motion, bridge dynamic weighing), including two sets of devices: tape or pressure-sensitive traditional road wheelbase recognition device or FAD (Free-of-axle-detector) sensor (non-road axle detection sensor), which is used to identify the vehicle wheelbase and vehicle speed; and strain s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02G01G19/03
CPCG01D21/02G01G19/03
Inventor 邓露何维施海王维
Owner HUNAN UNIV
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