• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2019년도 춘계학술대회
• /
• pp.140-141
• /
• 2019

부산항은 소규모로 분산된 다수의 컨테이너터미널 운영사에 의해 비효율적으로 운영되고 있다. 특히 2016년 선사들이 얼라이언스가 대형화됨에 따라 부산항의 소규모 터미널은 물량의 분산과 타부두 환적화물 증가 및 선박이 바다에서 대기하는 체선 발생을 야기시키는 원인이 되고 있다. 이에 따라 컨테이너터미널의 대형화를 위한 통합운영과 같은 연구가 진행되고 있다. 따라서 본 연구에서는 부산항 신항의 터미널들을 대상으로 통합운영의 유형을 설정하고 시뮬레이션을 통한 실질적인 효과를 측정하여 통합운영의 이상적인 방향을 제시하는 연구를 하고자한다.

• 한국지리정보학회지
• /
• 제20권1호
• /
• pp.127-136
• /
• 2017

U-City 기반시설의 구성요소는 지능화된 시설, 정보통신망, 통합운영센터로 구분되며, 기존 연구에서의 U-City기반시설은 효율적인 운영 관리의 필요성을 제시하고 있다. 그러나 그 중 법에서 정의하는 내용과 다르게 해석하는 경우가 지능화된 시설에서 빈번히 발생하고 있다. 이러한 문제의식을 토대로 국내 지능화시설 관련 법제도 및 운영관리의 문제점 등을 종합적으로 분석하여 지능화시설의 효율적 활용을 위한 통합운영방안을 마련하고자 한다. 이를 위해 관련 법제도와 실무담당자 인터뷰를 통해 지능화시설의 현황 및 문제점을 파악하고, 지능화 시설에서 생성된 도시정보 및 설치위치를 모두 포함한 통합 활용의 필요성을 도출하였다. 현재 정부부처 및 지자체는 ICT를 활용한 다양한 정보시스템을 구축 운영하고 U-City법에서는 통합적 관리 운영을 명시하고 있으나, 시설 운영주체에 대한 구체적인 책임과 권한에 관한 정의는 명확히 이루어지지 않고 있다. 이를 효율적으로 운영하기 위해 설치된 장비와 여기서 생성된 도시정보를 공동으로 활용할 수 있는 관련 부서 간 원활한 조정이 가능한 추진체계가 필요하다. 본 연구는 지능화시설의 관련법 및 법규들에 대한 논리적 연계의 관계를 정립하여 효율적인 지능화시설 설치 및 관리를 위해 일원화된 법적 시스템의 체계를 마련하고자 한다. 이를 통해 지능화시설의 통합연계 및 활용을 위한 관리체계의 기초 토대가 될 수 있을 것으로 기대한다.

• 전력전자학회:학술대회논문집
• /
• 전력전자학회 2008년도 하계학술대회 논문집
• /
• pp.406-409
• /
• 2008

This paper presents the integrated magnetic circuit designing method for phase shift full bridge(PSFB) converter. The integrated magnetic circuit is implemented on redesigned of EI core. The transformer windings are located on center leg and the two inductors are located on the outer legs with air gap. Based on the equivalent circuit model, the principle of operation of the PSFB converter is explained. The operation and performance of the proposed circuit are verified on a 1.2 kW prototype converter. The analysis and design of the integrated magnetic circuit is verified through the experimental and simulation results.

• 한국정보디스플레이학회:학술대회논문집
• /
• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
• /
• pp.280-283
• /
• 2008

LCD-TV applications were successfully implemented using integrated gate drivers. Integrated gate drivers have been implemented on a HD panel for 60Hz operation and on a FHD panel for 120Hz operation. It is found that the integrated gate driver reduces the flicker of a panel.

• 산업경영시스템학회지
• /
• 제33권3호
• /
• pp.87-92
• /
• 2010

In this paper, we suggest a PLCS-based architecture and operation method for providing interoperability in SBA integrated collaborative environment. Specifically, the suggested architecture is based on the distributed collaborative environment which employes the PLCS application protocol and integrated repository for representing and sharing product data information between collaborators remotely located. As an example of data representation, a military vehicle system is considered and two kinds of information, including state and activity/process, are explained. We expect that the suggested architecture can be used as a reference model to develop an efficient SBA integrated collaborative environment.

• 한국항해항만학회지
• /
• 제30권9호
• /
• pp.741-748
• /
• 2006

Number of researches on efficient terminal operation system applying RFID(Radio Frequency Identification) are in progress. However, RFID has limitations on tracking and providing accurate positions of containers. In this paper, to enhance the performance of the integrated terminal operation system, an efficient loading management of yard is proposed by applying RFID based RTLS(Real Time Locating System) that provides real time accurate positions of containers. It was found that a group based sequence system is more efficient than the existing individual sequence number system in the container yard In the group based sequence system, the containers in the same group should have similar characteristics such as port of destination(POD), size, weight, etc. In order to run this system, we proposed the parameters to the unspecified N bytes of RFID tag which are specified in ISO 18000 7. And then, we developed an integrated operation system of container terminal using RFID. The proposed system reduces the ship turnaround time in ubiquitous port environments.

• 대한산업공학회지
• /
• 제21권3호
• /
• pp.329-343
• /
• 1995

Traditionally, machining process sequence was influenced and constrained by the design information obtained from CAD data base, i.e., class of operations, geometric shape, tooling, geometric tolerance, etc. However, even though all the constraints from design information are considered, there may exist more than one way to feasibly machine parts. This research is focused on the integrated problem of operations sequencing and machine tools selection in the presence of the product mix and their production volumes. With the transitional costs among machining operations, the operation sequencing problem can be formulated as a well-known Traveling Salesman Problem (TSP). The transitional cost between two operations is expressed as the sum of total machining time of the parts on a machine for the first operation and transportation time of the parts from the first machine to a machine for the second operation. Therefore, the operation sequencing problem formulated as TSP cannot be solved without transitional costs for all operation pairs. When solved separately or serially, their mutual optima cannot be guaranteed. Machining operations sequencing and machine tool selection problems are two core problems in process planning for discretely machined parts. In this paper, the interrelated two problems are integrated and analyzed, zero-one integer programming model for the integrated problem is formulated, and the solution methods are developed using a Tabu Search technique.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.1
• /
• pp.343-348
• /
• 2006

Number of researches on efficient terminal operation system applying RFID(Radio Frequency Identification) are on progress. However, RFID has limitations on tracking and providing accurate positions of containers. In this paper, to enhance the performance of the integrated terminal operation system, an efficient loading management of yard is proposed by applying RFID-based RTLS(Real Time Locating System) that provides real-time accurate positions of containers. We found that a group-based sequence system is more efficient than the existing individual sequence number system in the container yard. In the group-based sequence system, the containers in the same group should have similar characteristics such as port of destination(POD), size, weight, etc. In order to run this system, we have proposed the parameters to the unspecified N bytes of RFID tag which are specified in ISO 18000-7. And, this paper proposed a development of integrated operation system of container terminal using RFID for reducing the ship turnaround time in ubiquitous port environment.

• 제어로봇시스템학회논문지
• /
• 제17권6호
• /
• pp.602-609
• /
• 2011

In this paper, we standardized the water operation system picture, process control logic, realtime database and system configuration. All aspects, including monitoring & controlling processes, symbols such as pumps, valves and pipes were standardized. As a result we have developed a specialized Integrated water operation system, iWater. We have developed a variety of advanced application programs that are essential for water treatment systems, such as IWS (Integrated Warning system), MBO(modbus opc)/LSE(LS ethernet) driver, video monitoring, self diagnosis system, network monitoring, etc. IWS prevents water supply accidents by using a variety of alarms and warning messages. Drivers have the flexibility to communicate with other 3rd party systems. We expect that iWater will eliminate any concerns regarding water-related issues while also promoting the production and fair distribution of clean water.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2018년도 추계학술대회
• /
• pp.119-121
• /
• 2018

해상교통 환경변화에 부응하고 나아가 대형 해양사고 방지와 인명사고 예방을 위해 구축, 운영 중인 항로표지통합관리시스템을 2012년 제정된 "해양교통시설 통합관리시스템 표준규격서"를 준용하여 개선을 하고자 한다. 기존에 구축되어 운영 중인 시스템의 자원을 재활용하고 운용소프트웨어를 개선하며, 자국 시스템 설치에 있어 표준화하여 운영 및 유지관리가 용이하도록 한다.