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Pointer type instrument full-automatic verification system and method

A pointer-type, fully automatic technology, applied in the direction of instruments, etc., can solve the problems of low efficiency and error-prone, and achieve the effect of high verification efficiency, easy measurement value acquisition, and high verification accuracy.

Pending Publication Date: 2021-02-09
ZHEJIANG SUPCON TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pointer meters are widely used in industrial production and daily life. The qualification of pointer meters is very important. Therefore, in the process of use, it is often necessary to verify the qualifications of different types of pointer meters according to different verification standards. However, the traditional verification method requires manual control of the verification process, manual judgment of the verification results, and manual recording of the verification records, which is very inefficient and error-prone

Method used

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  • Pointer type instrument full-automatic verification system and method
  • Pointer type instrument full-automatic verification system and method
  • Pointer type instrument full-automatic verification system and method

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Embodiment 1

[0043] In this embodiment, a full-automatic calibration system for pointer instruments, such as figure 1 As shown, it includes a verification setting module 1 for setting verification parameters, a verification execution module 2 for verifying the pointer instrument to be tested according to the verification parameters, a verification report module 3 for outputting verification reports according to the verification results of the verification execution module, and a verification report module for storing data. database4.

[0044] The verification parameters include the basic information of the pointer meter to be tested, the test standard and the test point. The basic information of the pointer meter to be tested includes the name of the meter, model, range, accuracy and dial image model.

[0045] The verification execution module includes an image acquisition device 5 for obtaining pointer instrument dial images, a test quantity generation device 6 that generates a correspond...

Embodiment 2

[0069] This embodiment is an automatic verification system for pointer instruments, which is used to verify pointer voltmeters. Compared with the system of this embodiment 1, the test quantity generation device in this embodiment is a controllable voltage regulator The connected voltage divider circuit is provided with a fixed circuit and an adjustable resistor with controllable resistance in the voltage divider circuit, and a pointer voltmeter is connected in parallel with both ends of the adjustable resistor.

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Abstract

The invention relates to a pointer type instrument full-automatic verification system and method. The system comprises a verification setting module, a verification execution module, a verification report module and a database for storing data. The method comprises the following steps: setting verification parameters; generating segment information; the verification execution module receives and analyzes the segment information to form a corresponding test environment for the pointer instrument to be tested to measure the value; acquiring a dial plate image of the pointer instrument to be measured and processing the dial plate image; overlapping the processed dial image with an image model, and identifying a numerical value corresponding to the position of the tail end of the pointer; comparing the identified numerical value with the test point, if the absolute value of the difference between the numerical value and the test point is less than the precision, determining that the verification is qualified, otherwise, determining that the verification is unqualified; and generating a verification report. The method has the advantages that the verification efficiency is high, and theverification accuracy is high; the dial plate image pre-obtaining module converts the arc-shaped scale into the linear scale, thereby facilitating the obtaining of a measurement value, and not affecting the reading precision.

Description

technical field [0001] The invention relates to the field of pointer meter testing, in particular to an automatic verification system and method for pointer meters. Background technique [0002] Pointer meters are widely used in industrial production and daily life. The qualification of pointer meters is very important. Therefore, in the process of use, it is often necessary to verify the qualifications of different types of pointer meters according to different verification standards. However, the traditional verification method requires manual control of the verification process, manual judgment of the verification results, and manual recording of the verification records, which is very inefficient and error-prone. Contents of the invention [0003] The present invention mainly solves the above-mentioned problems, and provides an automatic calibration system and method for pointer meters by using image processing technology to obtain measured values ​​of pointer meters a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 郭向霞俞利明陈青峰周伟建
Owner ZHEJIANG SUPCON TECH