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GUI기반 산업용 디지털 기기의 측정값 인식 시스템

A GUI-based the Recognition System for Measured Values of Digital Instrument in the Industrial Site

  • Jeon, Min-sik (Department of Electronic Engineering, Changwon National University) ;
  • Ko, Bong-jin (Department of Electronic Engineering, Changwon National University)
  • 투고 : 2016.10.10
  • 심사 : 2016.10.18
  • 발행 : 2016.10.30

초록

본 논문에서는 영상처리를 통해 GUI를 기반으로 산업용 디지털 기기의 측정값을 인식하고 기록하는 시스템을 제안하고 구현하였다. 제안한 시스템은 기존의 차량번호판 인식과 달리 산업용 측정기의 LCD화면에 표시되는 값은 디지털 숫자로 표시하고 있어 소수점과 마이너스 표시, LCD보호유리의 반사광등의 여러 가지 장애요인을 고려하였다. LCD화면에 표시된 숫자를 인식하기 위해 블롭 레이블링 (blob-labeling)기법을 사용하였으며, 인식한 숫자 이미지는 템플릿 매칭(template matching)을 통해 숫자가 무엇인지 판별하여, 인식한 측정값을 측정시간과 함께 저장장치에 기록하였다. 본 논문에서 제안한 시스템은 산업현장에서 제품의 내외경이나 높이를 측정하고 기록할 때 수기로 작성하는 번거로움을 줄이고, 수기로 작성 시 잘못 기입하는 경우를 방지함으로써 생산 공정 과정에서 오류가 없는 효율적인 공정관리가 가능하게 하였다.

In this paper, we proposed and implemented a GUI-based system to recognize and record measured values of digital instruments in the industrial site through image processing. Unlike the existing vehicle license plate recognition system, the measured values of the measuring instrument are displayed on the LCD screen as digital numbers. So, the proposed system considers the decimal point, a negative sign, light reflected by LCD protective glass, and various disturbance factors. We used blob-labeling technique to recognize the numbers displayed on the LCD screen, the recognized number images were determined as certain numbers through the template matching, and recognized values were recorded in the storage device with measurement time. Therefore, the proposed system in this paper would reduce the burden of writing when recording the measured values of the inside/outside diameter or height of the product in the industrial site, so effective and errorless process management in production process is possible by preventing errors in recording measurements when written by hand.

키워드

참고문헌

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피인용 문헌

  1. 생산환경 개선을 위한 통합 모니터링 시스템 구현 vol.23, pp.5, 2016, https://doi.org/10.12673/jant.2019.23.5.481