• 한국기계가공학회지
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• 제21권6호
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• pp.22-29
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• 2022

In this study, an automatic marking system for fabric inspection machines was developed. The main objectives of the study were to promote intelligence and automation for the inspection process, as well as to increase textile industrial productivity. Generally, when a worker manually inspects and marks a fabric, human error and reduced efficiency are unavoidable. To overcome these problems, we developed an automatic marking system that uses robots. This system incorporates a vision camera to automatically recognize defects, and an optical fiber sensor to detect the side of the fabric. To verify the performance, the control system sends a command directly to the robot to mark the fabric. Finally, the actual production confirmed that the proposed system could perform the desired motion.

• 정보처리학회논문지B
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• 제9B권2호
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• pp.245-254
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• 2002

머신비전을 이용한 IC 패키지 마킹검사 시스템은 입력영상으로부터 검사할 요소들의 위치를 식별하고, 추출된 요소들을 학습된 표준 패턴과 비교하여 마킹의 불량 여부를 판단한다. 본 논문에서는 검사 대상 IC 패키지의 위치 판별, 마킹문자 추출, 핀원딤플 검출과 같은 일련의 작업들에 적합한 적응적 다단계 이진화 방법과 마킹문자의 국소적인 오류검출은 물론 잡영에 강건한 정합단위의 동적 선택 방법을 제안한다. 제안하는 이진화 방법은 이진화 대상 영역과 명도 값의 범위를 제한하여 Otsu의 이진화 알고리즘을 적용함으로써 특정 응용에 적응적인 이진화가 가능하다. 정합단위의 동적 선택 방법은 문자추출 및 배치분석에 대한 결과에 따라 정합단위를 선택한다. 그러므로 문자추출 및 배치분석 과정에서 발생하는 예기치 못한 부적절한 상황에서도 가능한 범위내에서 최소의 정합단위를 선택할 수 있다. 제안된 방법을 구현하여 8종의 IC 패키지, 총 280개의 영상에 대하여 실험한 결과, IC 패키지와 핀원딤플의 검출율은 100%였으며, 마킹상태에 대한 판정은 98.8%의 정확도를 나타내어 제안된 방법이 효과적임을 확인할 수 있었다.

• 한국구조물진단유지관리공학회지
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• 제16권1호
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• pp.37-44
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• 2012

• 월간포장계
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• 통권201호
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• pp.82-88
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• 2010

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2007년도 추계 종합학술대회 논문집
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• pp.457-461
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• 2007

레이저 슬라이드 마킹 시스템은 기존의 수작업으로 수행하던 작업 공정을 대체할 수 있으므로 병원의 임상병리과 등 관련 전문가들이 적극적으로 도입을 검토하고 있다. 현재 국내 병원에서는 IT기술의 발달로 각종 진단 결과의 처리에서 병원 내의 물류에 이르기까지 다양한 분야에서 전산화가 이루어지고 있다. 이에 따라 각종 검사 업무를 담당하고 있는 임상병리 부서에서도 검사 장비의 전산화, 자동화의 노력이 진행되고 있으며, 검사 업무의 핵심장비인 레이저 슬라이드 마킹 시스템을 도입하여 사용하려는 수요가 증가하고 있다. 레이저 슬라이드 마킹 시스템의 국내 시장규모는 2008년 2억5천만원이고, 2012년 17억5천만원으로 예상된다. 레이저 슬라이드 마킹 시스템은 2005년도에 국내에 처음으로 도입되었고, 제품수명 주기상 도입기에 해당하며, 향후 성장 가능성이 매우 높을 것으로 전망된다.

• Smart Structures and Systems
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• 제31권6호
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• pp.573-583
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• 2023

Although unmanned aerial vehicles have been used to overcome the limited accessibility of human-based visual inspection, unresolved issues still remain. Onsite inspectors face difficulty finding previously detected damage locations and tracking their status onsite. For example, an inspector still marks the damage location on a target structure with chalk or drawings while comparing the current status of existing damages to their previous status, as documented onsite. In this study, an augmented-reality-based structural inspection system with onsite damage information marking was developed to enhance the convenience of inspectors. The developed system detects structural damage, creates a holographic marker with damage information on the actual physical damage, and displays the marker onsite via an augmented reality headset. Because inspectors can view a marker with damage information in real time on the display, they can easily identify where the previous damage has occurred and whether the size of the damage is increasing. The performance of the developed system was validated through a field test, demonstrating that the system can enhance convenience by accelerating the inspector's essential tasks such as detecting damages, measuring their size, manually recording their information, and locating previous damages.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 추계학술대회 논문집
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• pp.147-150
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• 2002

A light guide panel is an element of the LCD backlight module that is often used for the display of compact electronic devices. In this study, a laser marking system is proposed to fabricate light guide panel, which can be replaced of other manufacturing methods such as silk printing, stamping, and v-cutting methods. The objectives of this research are the establishment of laser marking system, evaluation of laser marking parameters, understanding marking process, application to PMMA, reliability test and quality inspection. A 50W $CO_2$ laser (CW) was used to perform different experiments in which, the influence of some processing parameters (average power, scanning speed) on the geometry and quality of groove pattern was studied. The width of the etched grooves increases with increasing a laser power and decreasing a scan speed. In order to analyze surface characteristics and optical properties (luminance, uniformity), SEM photography and BM7 (luminance measuring system) were used. As a result, the optimal conditions of the process parameters were determined.

• 제어로봇시스템학회논문지
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• 제16권9호
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• pp.913-917
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• 2010

To inspect the defects of printed markings on the surface of IC package, the OCV (Optical Character Verification) method based on NCC (Normalized Correlation Coefficient) pattern matching is widely used. In order to detect the micro pattern defects appearing on the small portion of the markings, a Partitioned NCC pattern matching method was proposed to overcome the limitation of the NCC pattern matching. In this method, the reference pattern is first partitioned into several blocks and the NCC values are computed and are combined in these small partitioned blocks, rather than just using the NCC value for the whole reference pattern. In this paper, we proposed a method to decide the proper number of partition blocks and a method to inspect and combine the NCC values of each partitioned block to identify the defective markings.

• 한국염색가공학회지
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• 제3권1호
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• pp.37-45
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• 1991

면직물의 Embossing 가공은 의류, 종이, 가죽 제품 등에 수요가 상당히 많고, Moire 및 Schreiner 가공은 의류에 이용되고 있다. 原布(grey)$\rightarrow$(2) 檢布(cloth inspection).標識(marking)$\rightarrow$((3) 節取(knotting), 修正(mending), 汚染빼기(stain removing)$\rightarrow$((4) 필이음(cloth sewing).rolling$\rightarrow$((5) 燒毛(singeing)v(6) 糊拔(desizing)$\rightarrow$((7) 水洗(washing)$\rightarrow$((8) 精練(scouring)$\rightarrow$((9) 水洗(washing)$\rightarrow$((10) 漂白(bleaching)$\rightarrow$((11) 水洗(washing)$\rightarrow$((12) 酸處理(souring)$\rightarrow$((13) 水洗(washing)$\rightarrow$((14) 打布(scutching)$\rightarrow$((15) 脫鹽素處理(dechlorination).水洗 (16) 螢光漂白(optical bleaching). 乾燥(drying)$\rightarrow$((17) Mercerizing.水洗.乾燥$\rightarrow$((18) 染色(dyeing).捺染(printing).水洗.乾燥$\rightarrow$((19) 樹脂液 padding 및 豫備乾燥$\rightarrow$((20) Embossing calendering(또는 moire calendering, schreiner miendering)$\rightarrow$((21) 熱處理(curing)$\rightarrow$((22) Soaping$\rightarrow$((23) 乾燥$\rightarrow$((24) 給混 (damping)$\rightarrow$((25) 幅내기$\rightarrow$((26) 最終檢布(final inspection)$\rightarrow$((27) 천접기(holding) $\rightarrow$((28) 整布(1필씩 짜르기)$\rightarrow$((29) 천감기(1필씩 또는 1권으로)$\rightarrow$((30) 商標붙이기(marking).包裝(packing).荷造(baling).出荷(forward)

• 한국동물위생학회지
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• 제33권4호
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• pp.393-399
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• 2010

We analyzed the HACCP prerequisite of National Veterinary Research and Quarantine Service (NVRQS) and the Food Establishment Inspection Report of US Food and Drug Administration (FDA) to recommend contents and ranges to be complemented and used for preparation of guidelines for more effective application of HACCP prerequisites. We used the HACCP inspection reports implemented by Korea Livestock Products HACCP Accreditation Service from 2007 to 2009, FDA Food Code 2009 Guide 3-B Instructions for Marking the Food Establishment Inspection Report, and Retail Food Establishment Sanitation Requirements of 410 Indiana Administrative Code. Major non-compliance items were open doors and windows, insanitary cleaning of in-use utensil, inadequate record of warehousing, and improper storage, transportation, and labelling. Hot water supply, personal hygiene, and regular product testing were additional week points which should be more strongly controlled by detailed operating guidelines. Also, current prerequisite items were required revision into more precise contents to enhanced the effective evaluation and practical application in meat markets.