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Glass meter reading system based on machine vision

A technology of glass gauges and reading systems, applied in instruments, measuring devices, liquid/fluid solid measurements, etc., which can solve problems such as eye fatigue and easy reading of wrong data

Inactive Publication Date: 2012-10-03
SHENYANG AIRCRAFT CORP
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  • Summary
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The current calibration of glass gauges is all manual reading. This manual reading data verification method has the following problems: 1. Manual reading needs to be estimated, so the estimated error is 1 / 10-1 / 10 of the minimum division value 5, which is one of the main sources of the uncertainty of the correction value of the glass measuring instrument under inspection; 2. Reading the data at close range will make the eyes tired and easy to read the wrong data

Method used

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  • Glass meter reading system based on machine vision
  • Glass meter reading system based on machine vision

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Embodiment Construction

[0009] Such as figure 1 As shown, a glass measuring instrument reading system based on machine vision includes an imaging system 10, an acquisition system 20 and a processing system 30 connected in sequence; wherein the imaging system 10 is provided with a light source 12 between a condenser lens 11 and an objective lens 13, Condenser 11, light source 12 and objective lens 13 are on the same optical axis simultaneously, and the other side of objective lens 13 is provided with CCD camera 14; Described acquisition system 20 is image acquisition card 21; Described processing system is computer 31.

[0010] Its working principle is: the imaging system light source 12 generates parallel light after being concentrated by the condenser lens 11, and the parallel light is projected onto the measured device 1, and the image of the measured device is imaged to the photosensitive surface of the camera 14 through the imaging system objective lens 13, and the acquisition system The graphics...

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Abstract

The invention relates to a glass meter reading system based on machine vision, which includes an imaging system, an acquisition system and a processing system that are connected in sequence, wherein the imaging system adopts the structure that a light source is arranged between a condensing mirror and an objective, meanwhile, the condensing mirror, the light source and the objective are arranged on one optical axis, and a CCD (charge-coupled device) camera is arranged on the other side of the objective. The system provided by the invention adopts the design that the machine vision is combined with the tested meter, thereby not only improving the reading accuracy and reducing the error, but also greatly improving the working efficiency.

Description

technical field [0001] The invention relates to a glass gauge reading system based on machine vision, which is used for reading the indicated value of the glass gauge. Background technique [0002] The current verification of glass gauges is manual reading. This verification method relying on manual reading data has the following problems: 1. Manual reading needs to be estimated, so the estimated error is 1 / 10-1 / 10 of the minimum division value 5, which is one of the main sources of uncertainty in the corrected value of the glass measuring instrument being tested; 2. Reading the data at close range will make the eyes tired and easy to read wrong data. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a glass gauge reading system based on machine vision. The system not only improves the reading accuracy, reduces errors, but also greatly improves work efficiency through the design of the combination of machine vision...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
Inventor 李宝
Owner SHENYANG AIRCRAFT CORP
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