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Algorithm for measuring wear pin length using an input image

A technique for inputting images, images, applied in the field of image metrology, which can solve the problems of cancellation, insufficient inventory planning, delay, etc.

Active Publication Date: 2016-08-10
HONEYWELL INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to inadequate inventory planning and leads to delays and cancellations

Method used

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  • Algorithm for measuring wear pin length using an input image
  • Algorithm for measuring wear pin length using an input image
  • Algorithm for measuring wear pin length using an input image

Examples

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Embodiment Construction

[0013] The techniques of this disclosure describe a system for automatically measuring wear pins based on input images received from a computing device, such as a handheld device. The handheld device can perform image analysis to measure wear pin length at regular intervals throughout the life of the brake. The device captures images of worn pins at every brake location on the aircraft. The device can correlate the captured images and any associated measurements with specific brake locations on the aircraft and can identify the specific aircraft, for example by recording the aircraft's tail number or position. The device may also enable the ability to capture other maintenance-related information. Data and images can then be uploaded to a central repository for analysis. Computer vision algorithms can measure pins from images of the brake area. The server can then communicate the results to the operator. Different versions of the program can also perform all image processi...

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Abstract

An algorithm for measuring the wear pin length using an input image is provided. In one example, the disclosure is directed to a method of determining a length of a wear pin in a brake assembly. The method includes obtaining an input image of a portion of the brake assembly, such as with a camera. The input image includes the wear pin and a reference object, and the reference object has a known dimension. A processor may determine, based on the input image, an image dimension of the reference object. The processor may determine, based on the input image, an image dimension of the wear pin. The processor may further determine, based on the image dimension of the reference object, the image dimension of the wear pin, and the known dimension of the reference object, an estimated measurement of the dimension of the wear pin.

Description

technical field [0001] The present disclosure relates to image metrology. Background technique [0002] A general practice for periodically collecting brake wear pin measurements from an aircraft is to visually inspect the pin and replace the wear pin and brake assembly when the pin is flush with the housing. Measurements, typically collected during a brake overhaul, are manually recorded on paper data sheets and sent to a central recording service. Errors can occur in manually measuring wear pins and recording the measured lengths. The person measuring the length of the pin may not be consistently wrapping around the graphic, and he / she may have entered the wrong length in the log. This system does not provide sufficient data for wear monitoring and prediction of when the brakes will need to be changed. This results in inadequate inventory planning and leads to delays and cancellations. Contents of the invention [0003] In general terms, the present disclosure relate...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06V10/42
CPCG06T7/0004G06T2207/20028G06T2207/30164B60T17/221F16D66/02G01B5/0028G01B11/02G06V20/52G06V10/42G06V2201/06G01B11/00G01B11/14
Inventor S.文卡特沙R.A.罗伊德D.米拉拉斯瓦米M.E.贝恩克
Owner HONEYWELL INT INC