• 한국정밀공학회지
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• 제10권4호
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• pp.180-189
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• 1993

In CAD/CAM system, it is required to produce manufacturing information from the deawing output of design system. The most difficult task is to formulate 3-dimentional modeling information utilizing 2-dimentional data. This paper addresses the automatic converting steps of 2-dimentional drawing data to 3-dimentional solid modeling using feature recognition rules as an expert shell. With the standardization of design process and recognition rule as a fundamental steps, the developed system shows a good application tool which can interface the design and manufacturing stage in CAD/CAM system of PC level.

• 한국건축시공학회지
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• 제15권3호
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• pp.329-337
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• 2015

건설도면은 프로젝트에서 발생하는 다양한 정보를 담은 지식의 집성체이다. 도면에 포함된 지식의 재활용은 건설 프로젝트의 성공에 있어 중요한 부분이다. 마감상세도는 실별, 부위별 마감 및 공법을 선택하고 설계하면서 생성되는 도면으로, 기존 사례 도면의 재활용이 가장 많은 도면중 하나이다. 그러나 여러 도면이 한꺼번에 작성되는 마감상세도의 특징 때문에 기존 도면관리시스템에서는 활용이 어렵다. 본 연구에서는 개별적인 마감상세도의 활용을 위하여 도면 블록화 알고리즘을 제안하였고, 이를 바탕으로 마감상세도 블록화 모듈을 개발하였다. 개발된 모듈을 기반으로 마감상세도 관리 시스템을 구축한다면 개별적인 마감상세도에 대한 관리가 가능할 것이다. 개별적인 마감상세도의 관리는 기존 마감상세도 검색에 소요되는 시간을 단축시켜 마감상세도 설계 작업의 생산성을 높일 수 있을 것이다. 또한, 마감상세도 내 지식의 재활용성이 증대됨에 따라 설계된 도면의 품질 향상에도 기여할 수 있을 것이다.

• 한국에너지공학회:학술대회논문집
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• 한국에너지공학회 2003년도 추계 학술발표회 논문집
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• pp.175-180
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• 2003

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 추계 학술논문 발표대회
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• pp.126-127
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• 2018

Rebar work is important in terms of cost and process of reinforced concrete construction along with formwork and concrete construction, and the quality of reinforced concrete construction has a great influence on the safety and durability of the structure. Therefore it is important to thoroughly inspect the steel reinforcement after casting the concrete because it is difficult to confirm the actual condition of the reinforcement. The purpose of this study is to develop an augmented reality system to visualize the records of bar placing work, which is increasingly utilized in the construction field. In order to improve maintenance of reinforced concrete, this study suggests a plan to effectively manage the drawing information including the structural drawing, the placing drawing, and the photographed image at the construction and inspection stage, and develop a system that utilizes augmented reality technology that can display the state of the inside of a concrete structure by superimposing it on actual environment.

• 한국전기전자재료학회논문지
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• 제25권4호
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• pp.321-327
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• 2012

To evaluate whether or not their product is in conformity with its drawing, today's factories manufacturing rubber and/or plastic products use manual process. In manual conformity inspection process, a person decides conformity as comparing drawing to image of product with his eyes. The manual process is tedious and time-consuming in addition that it is impossible to automatically record various informations related to inspection. To solve such problems, this paper proposes automatic drawing conformity inspection system based on computer vision technologies such as image feature matching and bilinear interpolation. The test results show that proposed system is a lot faster when comparing with manual system.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2011년도 춘계학술대회
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• pp.223-226
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• 2011

건축이나 조선소에서는 도면 설계를 위하여 캐드 프로그램을 활용하여 작업을 수행하고 있다. 그리고 작업 현장에서 설계를 참조하기 위하여 출력된 도면을 휴대하고 있다. 그러나 현장 환경이 열악하기 때문에 출력 도면은 훼손되기 쉽고 관리가 어려운 단점이 있다. 이 논문에서는 스마트 운영체제를 사용하고 있는 스마트 기기에서 캐드 도면을 출력하고 관리하기 위한 시스템 설계를 제안한다. 제안한 시스템에서는 화면 출력 속도를 개선하기 위하여 고정 그리드 파일 색인에 기반한 색인 파일을 사용하였다.

• 한국전자통신학회논문지
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• 제8권12호
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• pp.1933-1940
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• 2013

최근 컴퓨터 성능 향상 및 정보 기기의 발달로 모바일 증강현실은 급속한 발전을 이루고 있다. 그러나 대부분 콘텐츠가 수동적이거나 대화식이라 하더라도 제한적인 자유도만 주어져 사용자들에게 흥미와 몰입을 부여하기에는 한계점이 존재한다. 본 논문에서는 비전기반 증강현실 시스템과 데이터베이스 관리 시스템 연동을 통한 기존 증강현실 시스템을 보강하여 현실세계와 가상세계의 양방향 통신이 가능하도록 인터랙션 UI를 개선하여 활용성을 높이도록 모바일 증강현실 기반의 2D도면 인터랙션 UI 시스템을 설계한다.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 추계학술대회논문집A
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• pp.730-733
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• 2001

A computer aided design system for spur, helical, bevel and worm gears by using AutoCAD system and its AutoLISP computer language was newly developed in this study. Two methods are available for a designer to draw a gear. The first method needs the gear design parameters such as pressure, module, number of tooth, shaft angle, velocity, materials, etc. When the gear design parameters are inputted, a gear is drawn in AutoCAD system and maximum allowable power and shaft diameter are calculated additionally. The second method calculates all dimensions and gear design parameters to draw a gear when the information such as transmission, reduction ratio, rpm, materials and pressure are inputted. The system includes four programs. Each program is composed of a data input module, a database module, a strength calculation module, a drawing module, a text module and a drawing edit module. In conclusion, the CAD system would be widely used in companies to find the geometric data and manufacturing course.

• 한국도로학회논문집
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• 제16권5호
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• pp.91-98
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• 2014

PURPOSES : This study is to develop a automate road mapping system using ARASEO(Automated Road Analysis and Safety Evaluation TOol) for road management. METHODS : The road survey van named ARASEO(Automated Road Analysis and Safety Evaluation TOol) was used to generate highway drawings for Korea National Road number 37 automatically. In order to generate the highway drawings for purpose of road management, it is required to acquired the information for highway alignment, road width and road facilities such as safety barrier and road sign. Therefore the survey van acquired and analyzed the road width, median and guardrail data using rear side laser sensor of ARASEO and recognized the traffic control sign and chevron sign using foreside camera images. Also the highway alignment which is the basic information for highway drawing can be analyzed by acquisition the every 1m positional and attitude data using GPU and IMU sensor and developed algorithm. Finally, in this research the CAD based drawing software was developed to draw highway drawing using the analysis result from ARASEO. RESULTS : This study showed the comparison result of the surveyed road width and drawing data. To make the drawing of the road, we made the Autocad ARX program witch run in CAD menu interface. CONCLUSIONS : Using this program we can create the road center line, every 500m horizontal and vertical ground plan drawing automatically.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.1285-1293
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• 2008

Locking sheet is to display the contents of interlocking equipment for safe train drive in stations. It is being used as a basic information for interlocking equipment and for route control condition and the discussion for train operation between related parties. In spite of importance of this, there was no other way except depending on the work by hands from each stage(drawing, examination, discussion, approval) due to non-existing any tool. It is written it takes 30days from drawing to approval by procedures. However, it is required over the days in real time due to argument of each party. Furthermore on drawing of locking sheet, special conditions applied in accordance with situations of each station occasionally are different depending on the person in charge. Therefore, it is urgent to make up Logic Tree to accept special conditions of all stations. Automation Program for Drawing and Examination of Locking Sheet is to improve inefficient interlocking operation which was operated by hands in accordance with custom as automated system. The target of this program is to minimize the processing time and potential errors by personal work and set up standards for Logic Tree of special condition.