Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Floor rubber pad thickness analysis method and system suitable for metro vehicles

An analysis method and rubber pad technology, which are applied in image analysis, use of optical devices, image data processing, etc., can solve the problem of low precision, and achieve the effect of ensuring accuracy, short time and convenient operation.

Pending Publication Date: 2022-01-21
NANJING ZHONGCHE PUZHEN URBAN RAIL VEHICLE CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the measurement technology for the flatnes

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Floor rubber pad thickness analysis method and system suitable for metro vehicles
  • Floor rubber pad thickness analysis method and system suitable for metro vehicles
  • Floor rubber pad thickness analysis method and system suitable for metro vehicles

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Example 1

[0046] This example introduces an analytical system for a thickness analysis method of floor rubber mat, referencefigure 1 and figure 2 The system includes a controller and a detection mechanism; the detecting mechanism includes a stent and a measurement unit; the bracket includes a support 7 and a measuring arm 3, a slip drive mechanism is mounted on the measuring arm, and the measuring unit is slidably mounted on the measuring arm, sliding drive mechanism Drive connection measuring unit, the control end of the slip drive mechanism connects the controller.

[0047] The measuring unit includes a laser grid projector 1 and an image collector 2; the control terminal of the laser grid projector and the output of the image collector are respectively connected to the controller;

[0048] The controller controls the measurement unit by the slip drive mechanism to move on the measuring arm, and control the laser grid projector in the measuring unit to project grid line...

Example Embodiment

[0058] Example 2

[0059] This example describes a floor rubber mat thickness analysis method suitable for use in a subway vehicle, and can be implemented by the analysis system of Example 1, including:

[0060] Select the same height standard plane according to the reference plane of the vehicle floor to be tested;

[0061] Project the grid line to the standard plane, move the grid line image of all regions on the standard plane;

[0062] The initial bit data of each grid line intersection is calibrated according to the grid line image collected on the standard plane.

[0063] The grid line of the same parameter is projected to the surface of the vehicle floor surface, and the grid line image to be collected on the surface of the vehicle floor is collected;

[0064] The actual bit data of each mesh intersection is calculated based on the grid line image collected on the surface of the vehicle floor.

[0065] The height value of each mesh intersection is calculated based on the ac...

Example Embodiment

[0089] Example 3

[0090] Comprehensive Examples 1 and Example 2, the present invention relates to the application process of the thickness analysis of the vehicle floor with a thickness analysis.

[0091] S1, select the precision machining standard plane, and the hoist is up to the level 5. Place the support of the test mechanism at both ends of the standard plane, set up the measuring arm, mount the mounting of the measuring unit, and the measuring unit.

[0092] S2, turn on the semiconductor laser grid projection, project the grid line to the standard plane, measuring the longitudinal interval of the grid line with steel tape; start the CMOS camera to obtain the grid line image, determine the image data collected by the measurement data and the camera CMOS camera parameters and other related parameters, including CMOS camera lens focal length, amplification and laser mesh coordinates, etc.

[0093] S3, the initial position is calibrated: the control measuring unit moves from on...

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

PropertyMeasurementUnit
Wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a floor rubber pad thickness analysis method and system suitable for metro vehicles, and the method comprises the steps: projecting grid lines to a standard plane, movably collecting the grid line images of all regions on the standard plane, and calibrating the initial phase data of each grid line cross point; projecting grid lines with the same parameters to the surface of the floor of the vehicle to be measured, movably collecting images of the grid lines, and calculating actual phase data of each grid intersection point; calculating the height value of each grid cross point according to the actual phase data and the initial phase data, and performing curved surface fitting based on the height values to obtain curved surface profile data of the floor surface of the to-be-measured vehicle; and according to the curved surface profile data and the size of the to-be-laid floor, determining the position of each to-be-laid rubber pad and the thickness of the to-be-laid rubber pad at the corresponding position. The height data of the to-be-cushioned rubber pad on the surface of the vehicle chassis can be obtained through mobile measurement, then the thickness of the to-be-cushioned rubber pad can be calculated, and a rubber pad preparation table can be conveniently and automatically generated.

Description

technical field [0001] The invention relates to the technical field of rail vehicle parts detection, in particular to a method and system for analyzing the thickness of floor rubber pads suitable for subway vehicles. Background technique [0002] The car body of a subway vehicle is mostly welded by multiple pieces of metal. In order to resist the deformation caused by gravity when the vehicle is fully loaded, the underframe of the car body needs to retain a certain amount of upward deflection deformation to form a prestress. When the vehicle is assembled, it is necessary to lay rubber pads on the upper surface of the underframe of the vehicle body first, as the carrier for laying the aluminum honeycomb floor at the end. The aluminum honeycomb floor is generally 2 meters long and supported by rubber mats. Since the bottom frame is a curved surface, the heights of the rubber pads on the bottom frame are different. Therefore, the height of the rubber pads must be determined ac...

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
no application Login to View More
IPC IPC(8): G01B11/06G06T7/00G06T7/62G06T7/80
CPCG01B11/06G06T7/0004G06T7/62G06T7/80G06T2207/30252
Inventor 梁雯雯张国旺陈飞杨盛朱军军杨晓云
Owner NANJING ZHONGCHE PUZHEN URBAN RAIL VEHICLE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com