• Proceedings of the KIPE Conference
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• 2005.07a
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• pp.182-184
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• 2005

The human beings have Increased concern about Energy saving and alternative energy. The power demand has increased the growth of industry and the improvement of life We have to explore alternate energy sources and utilize effectively domestic resources. The lighting equipments developed Energy saving by using an electric ballast. The load installation should be promoted to rational power management, according to the network, intelligent, and high-function. Therefore, this paper has studied the method of energy saving and consulting.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.21 no.46
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• pp.137-146
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• 1998

Most studies related to AS/RS are about operation policies or system designs. However, the studies on operation policy could not deal with various products using the single unit load system. In this paper, two different sized units are introduced and six different AS/RS operation policies are developed to process the different sized items. Computer simulation is used to evaluate AS/RS performances on various operation policies and to find the most effective operation policy for each case. The simulation model is developed using GPSS/PC and operation policies include COL-FIFO-SP, SIL-FIFO-SP, COL-RN-SP, COL-FIFO-LP, SIL-FIFO-LP and COL-RN-LP. The policies are evaluated based on the criteria of crane utilization, rack utilization, crane moving time, throughput and waiting time.

• Journal of Korean Institute of Industrial Engineers
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• v.15 no.1
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• pp.1-15
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• 1989

In the past few years, increasing numbers of automatic storage/retrieval system (AS/RS) using computer controlled storage/retrieval machine have been installed. This paper introduces two modeling approaches to determine the best operating policy for AS/RS : an M/G/1 queueing model and a computer simulation model. The operating policy consists of three elements. : the operation command cycle, the storage location method, and the operation dispatching rule. The analysis based on M/G/1 model is suitable for a quick and approximate evaluation, due to its inherent strict assumptions. The computer simulation can be used to perform a more realistic analysis. It is shown through the study that a significant improvement in the throughput and/or the space requirement can be expected by determining the best operating policy to a particular system. Most important, the computer simulation demonstrates its powerful capability in evaluating dynamic stochatic systems with imperfect information.

• The monthly packaging world
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• s.240
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• pp.85-87
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• 2013

한국통합물류협회는 2월 21일 정기총회에서 천일정기 화물자동차(주) 박재억 대표이사를 제3대 회장으로 선임하였다. 대기업만이 아닌 많은 중소기업으로 이뤄진 통합물류협회는 모두의 이익을 조화롭게 조율할 수 있는 회장을 통해 업계 발전을 이룬다는 목표 아래, 전 물류영역을 아우르는 다양한 경험을 가진 박재억 회장을 선임했다고 밝혔다. 박재억 신임회장은 전일정기화물자동차(주)를 이끌연서, 컨테이너와 벌크화물 운송, 특수화물, 철강 및 철도운송, 항만하역사업, 자동차부품운송, 택배, 창고 등 물류 전 영역에서 물류정보화, 정시운송시스템 도입과 독보적인 조달물류 분야 개척 등 우리나라 물류경쟁력 확보에 앞장서 왔다. 3월 20일 열린 기자간담회를 통해 박재억 신임회장에게 협회 운영 계획에 대한 견해를 들어보았다.

• Journal of Korean Society of Archives and Records Management
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• v.2 no.2
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• pp.187-191
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• 2002

디지털당안관을 건설하는 주요한 목표는 디지털당안 관리, 디지털당안관의 조작 및 전통당안의 디지털화에 대해 완전한 해결 방안을 제시하여 선진응용 시스템을 개발하고, 유관한 업무 규칙과 기준을 건립하며, 각 유형의 디지털 자료창고를 건설하는 것이다. 또한 그것의 최종목적은 당안관 관장의 정보에 디지털식 관리를 실현하고, 인터넷 서비스를 통하여 독자들이 언제 어디서나 열람할 수 있도록 하는 것이다. 주요 특징은 정보관리의 디지털화 자동화 서비스의 네트워크화와 다양화 정보내용의 광범성인데, 예를 들어 각 종의 매체 정보, 정보의 저장과 사용자 방문이 지역적인 제한을 받지 않는다. 정보자원의 집산처로서 당안관이 네트워크 운행을 실시하는 것은 필연적이며 필수적인 것이기 때문에 사회 발전의 수요에 따라 당안관은 새로운 운영 모델을 찾아 네트워크사회에서의 경쟁능력을 높여 사회대중을 위해 서비스하고 이로써 미래 사회의 공중 정보의 중심이 될 것이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.371-373
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• 2022

e커머스 풀필먼트 비즈니스에서 수요예측은 매우 중요하다. 이는 고객의 온라인 주문정보를 바탕으로 풀필먼트 창고 내에서의 적정 피킹, 패킹 인력과 배송을 위한 차량의 적정규모도 산정하여 관련 비용 및 자원들 관리에 활용되기 때문이다. 특히 예측결과에 따라 인력 운영비용 및 배송에도 영향을 미치기 때문에 그 중요성이 날이 갈수록 커지고 있는 상황이다. 이런 이유로 e커머스 풀필먼트 비즈니스에 활용하기 위한 특화된 수요예측 방법이 필요하다. 본 연구에서 제안하는 멀티 조합 수요예측 기술은 풀필먼트 비즈니스에 가장 중요한 요소인 피킹과 패킹을 위한 적정 작업 인력 확보를 하고 이를 통해 안정적인 상품 출고가 가능해진다.

• Journal of Korean Society of Disaster and Security
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• v.17 no.1
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• pp.9-16
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• 2024

In Korea, as disasters become larger and more complex, there is a trend of shifting from a focus on response and recovery to a focus on prevention and preparedness. In order to prevent and prepare for disasters, each local government manages disaster management resources by stockpiling them. However, although disaster management resources are stored in individual warehouses, they are managed by department rather than by warehouse, resulting in insufficient management of disaster management resources due to the heavy workload of those in charge. In order to intensively manage these disaster management resources, an integrated disaster management resource management center is established and managed at the metropolitan/provincial level. In the case of Gangwon-do, the subject of this study, a warehouse is rented and operated as an integrated disaster management resource management center. When leasing an integrated management center, there is the inconvenience of having to move the location every 1 to 2 years, so it is deemed necessary to build a dedicated facility in an available site. To select a location candidate, network analysis was used to measure access to and use of facilities along interconnected routes of networks such as roads and railways. During network analysis, the Location-Allocation method, which was widely used in the past to determine the location of multiple facilities, was applied. As a result, Hoengseong-gun in Gangwon-do was identified as a suitable candidate site. In addition, if the integrated management center uses our country's logistics system to stockpile disaster management resources, local governments can mobilize disaster management resources in 3 days, and it is said that it takes 3 days to return to normal life after a disaster occurs. Each city's disaster management resource stockpile is 3 days' worth per week, and the integrated management center stores 3 times the maximum of the city's 4-day stockpile.

• Journal of the Korean Institute of Intelligent Systems
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• v.23 no.3
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• pp.202-207
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• 2013

In the paper, we design a autonomous mobile robot for freight transportation and propose an operation method of the robot in the warehouse. In order to implement autonomous navigation, it is needed to recognize the position of the robot and track the path to the target. Previous methods are hard to change the workspace environment and need high cost to install and keep a maintenance of the system. The lifter of freight transportation robot is designed to load and unload a baggage through up and down motion. Also, ultrasonic sensor, RFID, QR-code and camera sensor is used to carry out various functions while the robot navigates in the various environment. We design an operation method of the mobile robot in order to effectively arrive a goal position and transport a freight. The proposed methods are verified through various experiments.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.5
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• pp.1954-1962
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• 2012

Recently the increase in the exchange of goods between Europe and Asia caused by social and economic factors creates good opportunities for railways. At the same time, however, it becomes an enormous challenge for railway transport. There are different rail track gauges (i.e narrow/standard/broad gauge) on the continental transportation between Korea (TKR) and Eurasian (TCR/TSR). The existence of various track gauges is one of obstacles preventing the smooth flow of goods by rail. The transferring process system from one track gauge to another could vary with the types of cargo. Service operation of these systems has a decisive effect on working time and cost of storage and transshipment facilities at border crossings. In relation to the above-mentioned factors, it is important to examine the comparison between different methods of transferring goods in different track gauges. In this study, it was performed to evaluate the effectiveness of continental railway transportation systems through analysis scenarios and to suggest technical factors of them.

• Journal of Korea Port Economic Association
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• v.32 no.4
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• pp.127-147
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• 2016

This study proposes the improvement scheme of the current lease rate assessment system (2003~2014), as a major problem solving area, for the Terminal Operating Company (TOC)'s wharf since the introduction of the TOC system in 1997. The study considers the reform system using three criteria: standardization, simplification, and fairness. The final alternative presented by the study adopts the lease rate assessment system, which newly reflects changes of facilities' property values for aprons, combining it with the related fees of the Korean seaport dues for open storage yards, warehouses (shed), passages, buildings and lands within leased facilities. The proposal anticipates that the new system will not only minimize stakeholders' confusion, but also resolve the main problems within the current system. The study, further, introduces the adjustment ratio, which will make the new lease rate of the apron equal to the current lease rate of a berth, for the individual TOC's wharf, in order to prevent a sharp increment in the lease rate of the apron. This is because the government or port authorities as lessors, need to give priority to lightening the burden of TOC's costs under the deteriorating business environment such as the slowdown in port throughputs' growth. This study makes a contribution by suggesting a new lease rate assessment system for the TOC's wharf, reflecting the value of property as well as leading to its simplification and standardization. Additionally, it may lead to the improvement of fairness by applying the same rate to all leased wharfs for the lease rates of open storage yards, warehouses (shed) and passages. However, it has a limitation that hinders the fairness: the lease rate for the apron cannot be imposed in proportion to the leased area, by applying the individual adjustment ratios. In the future, those adjustment ratios should be, gradually, rationalized to be the same target ratio (0.5) for each wharf, following an improvement in the terminal operating business environment.