• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.974-977
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• 2005

Automatic lens assembly system is used for automatically assembling the lens module of phone camera. In this paper, we are trying to develop the cluster type automatic lens assembly with standard tray for applying for assembly field directly. This paper proposes the principle of cluster type lens assembly system and the related assembly production line concept for optimal automatic lens production line.

• 한국항행학회논문지
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• 제18권3호
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• pp.248-252
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• 2014

본 논문에서는 자동차 부품업체의 조립 공정에서 압입이나 볼트, 너트 체결에 주로 사용되는 프레스와 너트러너는 정밀도와 생산성 향상이 지속적으로 요구한다. 여러 대의 압입 시스템을 복합적으로 구성한 후 동기화를 통하여 일괄적인 제어를 수행하는 생산 시스템으로 시리얼 통신을 이용한 저속의 멀티 서보 프레스 시스템을 개발하였다. 그 결과로 정밀도와 생산성이 향상되었고 제품에 대한 품질향상을 이룰 수 있었다.

• 한국산업정보학회논문지
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• 제5권1호
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• pp.53-60
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• 2000

본 논문에서는 상용 CDC 카메라를 동하여 각종 산업용 부품들의 영상 정보를 입력한 후 이를 이용하여 부품에 기록된 각종 문자들을 자동 인식하고 인식된 문자 정보를 활용하여 부품의 제조, 조립 및 검사 공정 등을 자동화시킬 수 있는 산업용 부품 문자 인식 시스템을 구축하였다. 이러한 영상 정보 기반 산업용 부품 문자 인식 시스템을 작업 현장에 적용할 경우 생산성 향상, 경비 절감, 고품질 제품의 생산 및 공정의 자동화 등 다양한 요구를 충족시킬 수 있을 것이다.

• 제어로봇시스템학회논문지
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• 제4권1호
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• pp.88-99
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• 1998

In assembly, misalignment must be detected and compensated for during the mating period, regardless of the complexity of the cross-sectional shape. To this end, we propose a novel omnidirectional image sensing system for assembling parts with complicated shapes(OISSA) and its feasibility for detecting the misalignment between mating parts is shown by a series of simulations. This system encompasses a camera with an optical unit attached to the front of the camera. The optical unit consists of a pair of plane mirrors and a pair of conic mirrors. Utilizing the proposed sensing system, a 2$\pi$ coaxial image of the misalignment along the mating boundary interface between mating parts can be immediately obtained without experiencing self-occlusion.

• 인터넷정보학회논문지
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• 제3권3호
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• pp.75-85
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• 2002

최근 소프트웨어 개발비용의 절감과 신뢰성 있는 소프트웨어의 개발을 위하여 컴포넌트 기반의 소프트웨어 개발에 대한 연구가 활발하게 진행되고 있다. 컴포넌트 기반의 소프트웨어 개발 시 중요한 문제 중 하나는, 전체 시스템 아키텍쳐에서 어떠한 컴포넌트가 필요하며 아울러 어디에 적합할 것인가를 결정하는 것이다. 본 논문에서는 XML DTD를 관계형 데이터베이스 스키마로의 변환하기 위한 컴포넌트와 XML 문서의 관계형 데이터베이스로의 저장을 위한 컴포넌트 그리고 데이터베이스를 검색하여 XML 문서로 변환키 위한 컴포넌트들을 구현하였고, 이들을 토대로 하여 XML 저장관리시스템을 개발하였다.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1995년도 춘계학술대회
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• pp.183-185
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• 1995

We present a visual programming system for signal analysis; it allows the user to construct signal processing algorithms by assembling visually fundamental signal processing blocks, and to observe the processed signals as well as the original signals in detail by magnifying a portion and measuring the time interval and amplitude between two points. Each fundamental signal processing block is implemented as an independent dynamically linked library module. Therefore, the user can expand the system processing capability by simply adding dynamically linked library modules without restructuring the entire system.

• 산업공학
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• 제16권spc호
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• pp.138-143
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• 2003

In this paper, an automated design system for ball-joint parts based on 3-D solid modeler is developed. Parametric modeling and API provided by 3-D solid modeler is engaged to develope the system which consists of four main modules such as : 3-D part modeling, parts assembling, 2-D drafting, and database interfacing modules. The automated design system is implemented on a computer, and shows us that it shorten the design processing time which have taken over 5 hours to only few minutes.

• Structural Engineering and Mechanics
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• 제49권6호
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• pp.687-703
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• 2014

This paper develops a new nonlinear model for active control of three-dimensional (3D) irregular building structures. Both geometrical and material nonlinearities with a neuro-controller training algorithm are applied to a multi-degree-of-freedom 3D system. Two dynamic assembling motions are considered simultaneously in the control model such as coupling between torsional and lateral responses of the structure and interaction between the structural system and the actuators. The proposed control system and training algorithm of the structural system are evaluated by simulating the responses of the structure under the El-Centro 1940 earthquake excitation. In the numerical example, the 3D three-story structure with linear and nonlinear stiffness is controlled by a trained neural network. The actuator dynamics, control time delay and incident angle of earthquake are also considered in the simulation. Results show that the proposed control algorithm for 3D buildings is effective in structural control.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.77.5-77
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• 2001

A Robot vision system with a visual skill so as take information for arbitrary target or object has been applied to auto-inspection and assembling system. It catches the moving target with the manipulator by using the information from the vision system. The robot needs some information where the moving object will place after certain time. A camera is fixed on a robot manipulator, not on the fixed support outside of the robot. It secures wider working area than the fixed camera, and it dedicates to auto scanning of the object. It computes some information on the object center, angle and speed by vision data, and can guess grabbing spot by arriving time. When the location ...

• 대한기계학회논문집
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• 제18권4호
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• pp.986-996
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• 1994

Insulation system of LNG carrier has made important roles such as maintaining a proper Boil off Ratio(BOR) for the cargo and avoiding the excessive low temperature of the adjacent inner hull beyond the permissible limit. At the same time, safety and economy of the LNG transportation by the ship are connected with the performance of the insulation system. Also, thermal insulation system of LNG carrier is one of the most advanced technique with the structure analysis of tank, welding and assembling. In this study a computer program is developed to calculate the hull temperature distribution and BOR, which are important factors in thermal design for the Moss Rosenberg Verft spherical tank type LNG carrier. Detailed results for hhull temperature distribution close to LNG tank, BOR and the thickness effect of insulation material are reported in this paper in the range of standare design sea condition.