• 한국위성정보통신학회논문지
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• 제7권1호
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• pp.33-38
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• 2012

본 논문에서는 대규모 종합감시시스템 환경에서 비디오의 특징을 분석하여 비디오가 촬영되는 환경에 적합한 지능형 영상분석 알고리즘 선택 기준을 제안하였다. 대규모 종합감시시스템 환경의 예로 도시철도 감시시스템을 사용하였다. 본 시스템에 설치된 카메라에 입력되는 비디오의 특징을 위치와 용도 및 상황별로 분석하였다. 분석을 기반으로 하여 적합한 비디오 감시 알고리즘을 선택하는 기준을 제시하였으며 상황 처리 시나리오를 제시하였다.

• 시스템엔지니어링학술지
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• 제18권1호
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• pp.84-89
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• 2022

For system maintenance optimization, it is necessary to establish a state information system by CBM+ including CBM and RCM, and sensor selection for CBM+ application requires system process for function model analysis at the early design stage. The study investigated the contents of CBM and CBM+, analyzed the function analysis tasks and procedures of the system, and thus presented a D-FMEA based sensor selection inference methodology at the early stage of design for CBM+ application, and established it as a D-FMEA based sensor selection inference process. The D-FMEA-based sensor inference methodology and procedure in the early design stage were presented for diesel engine sub assembly.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1989년도 한국자동제어학술회의논문집; Seoul, Korea; 27-28 Oct. 1989
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• pp.296-301
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• 1989

As a cornerstone of assembly automation, the automatic part feeders are used to feed the various kind of the parts to the assembly workstation in the desired order and fashion. In this paper, EXPERT SYSTEM consisting of the data base for the feeding functions and part properties plus the rule base for the selection of feeder types is developed. The symbolic data of the part properties are used as basic factors in the selection rule of the suitable feeder types.

• 한국통신학회논문지
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• 제21권7호
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• pp.1642-1653
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• 1996

This paper covers feature extraction for automatic handwritten signature verification. Several major feature selection techniques are investigated from a practical perspective to realise an optimal signature verification system, and customised feature set selection based on set-on-set distance measurement is presented. The experimental results have proved the proposed methods to be efficient, offering considerably improved verification performance compared to conventional methods. Also, they dramatically reduce the processing complexity in the verification system.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 ITC-CSCC -2
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• pp.1107-1110
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• 2000

This paper proposes a selection procedure of geospatial data for location guidance map generation system. The selection procedure requires some targets appointed by users as input data and outputs generation. The procedure is embedded in a prototype of object-oriented GIS. We show sample maps generated by the system.

• 한국태양에너지학회 논문집
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• 제25권2호
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• pp.63-69
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• 2005

This study is the survey of a transition procedure of building services systems(heat source, HVAC, water supply) through the survey of existing office buildings, building design documents. The preference & major consideration of system selection is the engineer's opinions. The results of this survey can be used in selection of building services system design. In this survey, "Hot & cold water generator system" and "single duct CAV+FCU system", "Elevated water tank system" are selected. The most important consideration in system selection is the energy saving in heat source system, and comfort in HVAC system, and water pressure in water supply system. They prefer "steam boiler+absorption chiller system" for heat source system, "steam boiler+ice thermal storage system", "hot & cold water generator system", "district heating+absorption chiller system" : "single duct CAV+FCU system" and "single duct VAV+convector system" for HVAC system: and "booster pump system" for water supply system.

• 한국통신학회논문지
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• 제35권7B호
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• pp.1009-1017
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• 2010

Offering of different attractive opportunities by different wireless technologies trends the convergence of heterogeneous networks for the future wireless communication system. To make a seamless handover among the heterogeneous networks, the optimization of the power consumption, and optimal selection of interface are the challenging issues. The access of multi interfaces simultaneously reduces the handover latency and data loss in heterogeneous handover. The mobile node (MN) maintains one interface connection while other interface is used for handover process. However, it causes much battery power consumption. In this paper we propose an efficient interface selection scheme including interface selection algorithms, interface selection procedures considering battery power consumption and user mobility with other existing parameters for overlaying networks. We also propose a priority based network selection scheme according to the service types. MN‘s battery power level, provision of QoS/QoE and our proposed priority parameters are considered as more important parameters for our interface selection algorithm. The performances of the proposed scheme are verified using numerical analysis.

• 한국컴퓨터정보학회논문지
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• 제13권1호
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• pp.1-10
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• 2008

이 기종의 네트워크와 시스템 자원으로 구성된 그리드 컴퓨팅 환경에서 대용량 데이터를 빠르고 정확하게 처리하기 위해서는 효과적인 그리드 자원선택이 필수적이다. 이를 위해 본 논문은 의사결정 트리 기법을 이용한 그리드 자원선택 시스템을 제안한다. 이 시스템은 자원 정보를 기록한 데이터 셋을 바탕으로 사용자들이 선택하는 자원들을 처리 할 데이터의 특성과 사용자의 요구사항으로 분석해서 자원선택을 위한 의사결정 트리를 구축한다. 그리드 사용자의 자원 요청 시 의사결정 트리를 탐색하여 사용자 요구 및 작업 특성에 적합한 자원들을 선택하여 작업을 할당함으로써 사용자 만족도를 향상시킴은 물론 전체 그리드 시스템의 성능을 개선한다. 실험결과는 본 논문에서 제안한 의사결정 트리 기반의 그리드 자원선택 시스템이 기존 그리드 자원선택 시스템인 Condor-G 및 Nimrod-G와 비교하여 더 높은 작업 처리율 및 자원 이용률과 더 적은 작업 손실 및 처리시간을 제공함으로써 그리드 자원선택 및 데이터 분산 처리에 효과적이라는 사실을 증명한다

• 대한전자공학회논문지TC
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• 제47권3호
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• pp.31-38
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• 2010

본 논문에서는 MIMO-OFDM 시스템에 여러 MIMO 기법을 적용한 후 모의실험을 통하여 성능을 비교 및 분석하였고, 또한 Pre-coding, Antenna Subset Selection, AMC 기법을 적용하여 시스템을 분석하였다. 그리고 최종적으로 제안한 Adaptive-MCM(Adaptive-MIMO-Coding-Modulation) 기법의 성능을 분석하였다. 그 결과 4세대 이동통신 시스템에서 요구되고 있는 최대 전송률과 고품질 서비스의 Trade-off 관계를 개선할 수 있음을 확인하였다.

• 산업공학
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• 제19권1호
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• pp.26-33
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• 2006

Many Firms consider the application of a cross-docking system to reduce inventory and lead-time. However, most studies mainly concentrate on the design of a cross-docking system. This study presents the method that selects the cross-docking center under the existing logistics network. Describing the operation environment to apply the cross-docking system, the selection criteria of the cross-docking center, and the main constraints of transportation planning under the environment of multi-level logistics network, we define the selection problem of the cross-docking center applied to a logistics field. We also define the simulation model that can analyze variously the cross-docking volume and develop the selection methodology of the cross-docking center. The simulation model presents the algorithm and influence factors of the cross-docking system, the decision criteria of the system, policy parameter, and input data. In addition, this study analyzes the effect of increasing the number of simultaneous receiving and shipping docks, and the efficiency of the overnight transportation and cross-docking by evaluating each scenario after simulating the scenarios with the practical data of the logistics field.