KR980007885A - Apparatus and method for inspecting non-spots of printed board - Google Patents

Apparatus and method for inspecting non-spots of printed board Download PDF

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Publication number
KR980007885A
KR980007885A KR1019960025479A KR19960025479A KR980007885A KR 980007885 A KR980007885 A KR 980007885A KR 1019960025479 A KR1019960025479 A KR 1019960025479A KR 19960025479 A KR19960025479 A KR 19960025479A KR 980007885 A KR980007885 A KR 980007885A
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KR
South Korea
Prior art keywords
hole
coordinates
measured
pin
printed board
Prior art date
Application number
KR1019960025479A
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Korean (ko)
Inventor
임종락
최호열
Original Assignee
배순훈
대우전자 주식회사
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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019960025479A priority Critical patent/KR980007885A/en
Publication of KR980007885A publication Critical patent/KR980007885A/en

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  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

본 발명은 샘플기판으로부터 추출된 홀의 절대좌표로부터 피측정 프린트기판의 상대좌표를 구하고, 상기의 상대좌표값을 소정범위내에서 가변시키면서 핀존재유무를 검사하는 프린트기판의 미삽검사장치 및 방법에 관한 것으로, 본 발명에 의한 미삽검사는 샘플기판의 홀 좌표정보를 읽어들이는 단계와, 피측정 프린트기판의 디지탈화상데이타로부터 기준홀의 좌표를 구하는 단계와, 상기 단계에서 구해진 피측정 프린트기판의 기준홀좌표와 샘플기판의 홀좌표를 비교하여 그 차에 해당하는 보정치를 계산하는 단계와, 상기 단계에서 계산된 보정치를 샘플기판의 모든 홀좌표에 더하여 피측정 프린트기판의 홀좌표가 될 새로운 좌표(X, Y)를 생성하는 단계와, 상기 피측정 프린트기판 홀좌표(X,Y)를 기준으로 홀크기만큼의 화상데이타를 읽어들여, 핀이 존재하는지를 체크하는 단계와, 상기 체크단계에서 핀이 존재하지 않으며 상기 홀좌표(X,Y)를 소정 범위내에서 가변시킨 후, 상기 핀삽입유무를 반복체크하는 단계와, 설정된 범위내에서 홀좌표를 가변시키면서 핀삽입유무를 체크한 후에도, 핀이 없으면, 상기 홀을 미삽홀로 판단하는 단계로 이루어진다.The present invention relates to an apparatus and a method for inspecting a non-intersecting inspection of a printed circuit board in which relative coordinates of a printed board to be measured are obtained from absolute coordinates of a hole extracted from a sample substrate and the relative coordinate value is varied within a predetermined range, The non-inspecting method according to the present invention includes the steps of reading the hole coordinate information of the sample substrate, obtaining the coordinates of the reference hole from the digital image data of the printed board to be measured, A step of calculating a correction value corresponding to the difference by comparing the coordinates and the hole coordinates of the sample substrate, and adding the correction value calculated in the step to all the hole coordinates of the sample substrate to obtain new coordinates (X , Y), reading image data of a hole size based on the measured printed board hole coordinates (X, Y) Checking whether or not the pin is inserted after varying the hole coordinates (X, Y) within a predetermined range in the absence of a pin in the checking step; And judging the hole as a non-inserted hole if there is no pin even after checking whether or not the pin is inserted.

Description

프린트기판의 미삽검사장치 및 방법Apparatus and method for inspecting non-spots of printed board

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 본 발명에 의한 미삽검사의 동작수순을 보여주는 플로우챠트.FIG. 2 is a flow chart showing an operation procedure of a non-insertion inspection according to the present invention; FIG.

Claims (2)

부품이 삽입된 프린트기판의 미삽홀을 검출하는 프린트기판의 미삽검사장치에 있어서, 검색위치에 놓여진 피측정 프린트기판을 촬영하는 카메라와 상기 카메라가 프리트기판을 촬영할 수 있도록 조명을 조절하고 상기 카메라를 이동시키는 광학기구부로 이루어진 스캐너와, 상기 스캐너로부터 출력되는 피측정프린트기판의 아날로그 영상신호를 디지탈신호로 변화하는 아날로그/디지탈변환부와, 상기 아날로그/디지탈변환부로부터 디지탈 신호를 입력받아 화상처리과정을 행하는 화상처리부와, 부품이 삽입되기 전의 샘플기판으로부터 추출된 홀의 절대좌표정보를 저장하고 있는 메모리부와, 상기 화상처리부로부터 피측정 프린트기판의 화상데이타를 입력받아, 상기 메모리부에 저장된 샘플기판의 홀좌표와 비교하여, 피측정 프린트기판의 홀좌표를 생성하고, 상기 생성된 홀좌표를 기준으로 홀의 화상데이타를 분석하여 미삽여부를 검사하는 제어부와, 상기 제어부에 의하여 판단된 피측정 프린트기판의 검사결과를 출력하기 위한 출력부를 구비함을 특징으로 하는 프리트기판의 미삽섬사장치.A prism inspecting apparatus for a printed circuit board for detecting misalignment of a printed circuit board on which a component is inserted, the apparatus comprising: a camera for photographing a printed circuit board to be measured placed at a search position; An analog / digital converter for converting an analog image signal of the printed board to be measured, which is output from the scanner, into a digital signal; and an image processing unit for receiving a digital signal from the analog / A memory unit that stores absolute coordinate information of the hole extracted from the sample substrate before the component is inserted; and a memory unit that receives image data of the printed board to be measured from the image processing unit, Is compared with the hole coordinates of the measurement substrate A control unit for analyzing the image data of the hole based on the generated hole coordinates and inspecting whether the hole data is not interpolated or not and an output unit for outputting the inspection result of the measured printed board determined by the control unit, Wherein the frit substrate has a plurality of through holes. 샘플기판의 홀좌표를이용하여 피측정프린트기판의 홀좌표를 추출하여 미삽검사를 행하는 프린트기판의 미삽검사방법에 있어서, 샘플기판의 홀 좌표정보를 읽어들이는 단계와, 피측정 프린트기판의 디지탈화상데이타로부터 기준홀의 좌표를 구하는 단계와, 상기 단계에서 구해진 피측정 프린트기판의 기준홀좌표와 샘플기판의 홀좌표를 비교하여 그 차에 해당하는 보정치를 계산하는 단계와, 상기 단계에서 계산된 보정치를 샘플기판의 모든 홀좌표에 더하여 피측정 프린트기판의 홀좌표가 될 새로운 좌표(X,Y)를 생성하는 단계와, 상기 피측정 프린트기판 홀좌표(X,Y)를 기준으로 홀크기만큼의 화상데이타를 읽어들여, 핀이 존재하는지를 체크하는 단계와, 상기 체크단계에서 핀이 존재하지 않으연 상기 홀좌표(X,Y)를 소정 범위내에서 가변시킨 후, 상기 핀삽입유무를 반복체크하는 단계와, 설정된 범위내에서 홀좌표를 가변시키면서 핀삽입유무를 체크한 후에도, 핀이 없으면, 상기 홀을 미삽홀로 판단하는 단계를 구비함을 특징으로 하는 프린트기판의 미삽검사방법.A method of inspecting a printed circuit board that extracts the hole coordinates of a printed board to be measured by using the hole coordinates of the sample board to read the hole coordinate information of the sample board, Calculating a correction value corresponding to the difference between the reference hole coordinates of the printed board to be measured and the hole coordinates of the sample substrate obtained in the step; (X, Y) to be the hole coordinates of the measured printed board by adding the coordinates (X, Y) to all of the hole coordinates of the sample substrate; Reading the image data to check whether or not a pin is present; changing the hole coordinates (X, Y) in which the pin is not present within a predetermined range in the checking step, A step of repeatedly checking whether or not a pin is inserted and a step of judging the hole as an unspieled hole if there is no pin even after the presence or absence of a pin is checked while changing the hole coordinates within a set range, method of inspection.
KR1019960025479A 1996-06-29 1996-06-29 Apparatus and method for inspecting non-spots of printed board KR980007885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960025479A KR980007885A (en) 1996-06-29 1996-06-29 Apparatus and method for inspecting non-spots of printed board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960025479A KR980007885A (en) 1996-06-29 1996-06-29 Apparatus and method for inspecting non-spots of printed board

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KR980007885A true KR980007885A (en) 1998-03-30

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