• 산업경영시스템학회지
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• 제34권3호
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• pp.57-70
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• 2011

To address global climate change, various governments are investing in electric vehicle research and, especially in Korea, the application of electric vehicles to public transportation. The lithium batteries used in electric vehicles typically have an expected life cycle of 2-5 years. If electric vehicles become commonly used, they will generate many discarded batteries that could be harmful to the environment. Additionally, lithium batteries are potentially explosive and should be handled appropriately. Thus, reverse logistics issues are involved in handling expired batteries efficiently and safely. Reverse logistics includes the collection, recycling, remanufacturing, and discarding of waste. This study developed a reverse logistics process for electric vehicle batteries after analyzing the as-is process for lead and lithium batteries. It also developed possible disposal regulations for electric vehicle batteries based on current laws regarding conventional batteries.

• 디지털산업정보학회논문지
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• 제6권1호
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• pp.131-142
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• 2010

In this paper, we propose a web GPS based logistics vehicle control management system using MVC design patterns. The proposed system is designed by applying design patterns of object oriented modeling called mini-architecture to enhance reliability of software as well as promote stability of overall system design. In addition, we can get a position information by means of the GPS embedded in PDA and communicate between client and monitoring server using CDMA network so that the position of client can be identified directly by the map service. The system provides an moving object indexing technique which extends the existing TB-tree to manage and retrieve a transporting trajectory of logistics efficiently. Finally, with development of the logistics vehicle control service called WG-LOGICS system, we can verify the usefulness of our system which is able for monitoring a vehicle preparation, allocating registration, loading a burden, transfer path, and destination arrival in real world.

• 대한안전경영과학회지
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• 제20권2호
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• pp.1-8
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• 2018

This study aims to provide a real-time information to the driver by effectively operating the advanced safety device attached to the freight vehicle, thereby minimizing insecure behavior of the driver such as speeding, rapid acceleration, sudden braking, And improve driving habits to prevent accidents and save energy. Advanced safety equipment is a device that warns the driver that the vehicle leaves the driving lane regardless of the intention of the driver and reduces the risk of traffic accidents by mitigating or avoiding collision by detecting a frontal collision during driving.The main contents of this report are as follows: In case of installing a warning device on a lane departing vehicle (excluding a light vehicle) and a lorry or special vehicle with a total weight exceeding 3.5 tonnes, the driver must continue to operate unless the driver releases the function.In addition, when the automatic emergency braking system is installed, the structure should be such that the braking device is operated automatically after warning the driver when the risk of collision with the running or stopped vehicle in the same direction is detected in front of the driving lane.

• 한국정보통신학회논문지
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• 제14권12호
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• pp.2737-2746
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• 2010

최근 물류 산업에 USN/RFID 기술을 접목한 새로운 u-물류 패러다임이 등장하고 있다. 본 논문에서는 u-물류 패러다임을 토대로 GPS와 RFID를 이용한 웹 기반 물류차량 이력관리 시스템을 제안한다. 본 시스템의 설계시 모든 이벤트 처리 과정을 하나의 리사이클 형태의 상태로 간주하고 전체 시스템을 객체지향의 UML을 이용하여 모델링한다. 또한 RFID를 기반으로 물류차량을 식별하고 식별된 물류차량이 어떤 처리 과정을 거치고 있는 지를 확인하게 되며, GPS를 활용하여 차량의 위치 정보를 확인한다. 구현 방식은 C/S 방식으로 관리자가 사용하는 웹 기반의 인터페이스를 설계하고, 시스템 사용자의 이동성을 고려하여 PDA 기반의 사용자 GUI를 구현한다. 아울러 본 논문에서는 수요가, 생산처, 물류처, 관리자, 운전자를 각각 구분하고 각 기능을 별도로 구현하여 시스템 재사용성을 높이는데 초점을 둔다.

• 한국지리정보학회지
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• 제9권2호
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• pp.30-41
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• 2006

이 논문은 효율적인 차량 이동 궤적 관리를 지원하는 e-logistics 시스템을 제안한다. 최근의 무선통신의 발전은 물류 차량의 추적, 휴대폰 사용자 위치 서비스, 위치기반 상거래를 포함한 위치기반서비스들이 등장하게 하였다. 물류 시스템은 물류 센터에서 차량과 배송품의 위치를 계속적으로 파악해야 하므로 차량 추적을 필수적으로 수반하게 된다. 좀 더 나아가서, 계속적으로 이동하는 차량과 배송품의 위치 궤적을 저장하고 관리하는 것은 효율적인 물류 계획과 배송을 지원하기 위해 필수 불가결한 요소이다. 제안된 시스템은 실세계 모바일 환경에서 물류 배송 정보의 효과적인 관리뿐만 아니라, 기존의 공간 데이터베이스가 갖는 공간객체 관리 기능을 포함한다. 또한 효과적인 물류 이동 경로 관리 및 검색을 수행하기 위하여 기존의 TB 트리의 데이터 갱신 성능을 개선하고, 다중버전 기법을 도입한 색인을 사용하였다. 제안된 시스템은 소포관제와 유사한 차량 추적 시스템, 위치기반서비스 등과 같이 실시간 모바일 환경에서 연속적으로 위치를 변경하는 이동객체 관련 분야에 적용 가능하다.

• 정보처리학회논문지D
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• 제11D권6호
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• pp.1231-1238
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• 2004

인터넷 기술의 발달로 물류분야에서는 물류 회사간 인터넷 기반의 가상 비즈니스 활동 또는 서비스 아키텍쳐를 의미하는 e-Logistics라는 새로운 개념에 대한 활발한 연구가 진행되었다. 동적이고 광역화 범위를 대상으로 하는 e-Logistics 환경에서 기존의 차량관제기술은 위치 데이터 통합과 저장 및 공유와 같은 많은 문제점 야기하며, 이를 효과적으로 해결하기 위해서는 이동체 기술 개발이 필요하다. 따라서 이 논문에서는 표준명세와 컴포넌트 기법을 기반으로 차량의 위치데이터에 대한 통합 수집에서 위치정보의 향상된 공유성을 제공하는 이동체 관리 시스템의 세부요소들을 제안하였으며, 차세대 물류차량 관제 시스템의 구축 및 운용에서 비용과 시간 절감의 기대효과를 기대할 수 있다.

• Industrial Engineering and Management Systems
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• 제12권2호
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• pp.161-170
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• 2013

Deployment of green transportation in reverse logistics is a key issue for low carbon technologies. To cope with such logistic innovation, this paper proposes a hybrid approach to solve practical vehicle routing problem (VRP) of pickup type that is common when considering the reverse logistics. Noticing that transportation cost depends not only on distance traveled but also on weight loaded, we propose a hierarchical procedure that can design an economically efficient reverse logistics network even when the scale of the problem becomes very large. Since environmental concerns are of growing importance in the reverse logistics field, we need to reveal some prospects that can reduce $CO_2$ emissions from the economically optimized VRP in the same framework. In order to cope with manifold circumstances, the above idea has been deployed by extending the Weber model to the generalized Weber model and to the case with an intermediate destination. Numerical experiments are carried out to validate the effectiveness of the proposed approach and to explore the prospects for future green reverse logistics.

• 대한안전경영과학회지
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• 제15권2호
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• pp.193-204
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• 2013

The growing logistics strategy of a company is to optimize their vehicle route scheduling in their supply chain system. It is very important to analyze for continuous pickups and delivery vehicle scheduling. This paper is a computational study to investigate the effectiveness of continuous pickups and delivery vehicle routing problems. These scheduling problems have 3 subproblems; Inbound Vehicle Routing Problem with Makespan and Pickup, Line-haul Network Problem, and Outbound Vehicle Routing Problem with Delivery. In this paper, we propose 5 heuristic Algorithms; Selecting Routing Node, Routing Scheduling, Determining Vehicle Type with Number and Quantity, and Modification Selecting Routing Node. We apply these Algorithms to S vehicle company. The results of computational experiments demonstrate that proposed methods perform well and have better solutions than other methods considering the basic time and due-date.

• 대한안전경영과학회지
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• 제18권4호
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• pp.107-114
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• 2016

The efficiency of the purchasing and procurement logistics is important in automotive industry. The rationalization of production system is directly impact on productivity and quality. For this reason importance of logistics is high. Despite we are continuously making effort, our country are still below the level than developed country on logistics efficiency. Rising labor costs is an important factor in increasing logistics costs. So workforce reduction in logistics department is a large part. We deal with A-company inbound logistics, especially procurement logistics in automotive logistics as research object. So in this study we do research on work load balance about workers. We do research on 1,475 kinds of components in procurement process. We applied work load balance algorithm on chassis, final, sequence, trim warehouses workers. According to number of workers and average M/H, algorithm is applied in two ways. After applied work load balance algorithm we reduced numbers of workers from 28 to 20 and improved worker load balance rate from 47.1% to 93.7%.

• 디지털산업정보학회논문지
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• 제8권4호
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• pp.193-203
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• 2012

This study analyzed regular transportation costs between port warehouses and processing plants and between processing plants and central distribution centers and further transportation costs relations according to empty transfer rates in each circulation by examining the distribution routes of imported grain including wheat, barley, corn, and soybean, namely port warehouses, processing plants, and central distribution centers. Based on the results, the study compared and reviewed the logistics transportation costs. The analysis results of the alternative model show that logistics operational costs could be considerably cut down by introducing a flexible vehicle transportation operational method, which is to change the vehicle loading parts for proper substitute transportation after unloading and transport them to other locations such as central distribution centers instead of returning empty, as an alternative to high operational costs deriving from empty vehicle operation in each circulation after unloading items in case of transportation of imported grain and processed items. The results allow for a more realistic approach to general problems with large-scale distribution network operation and provide a theoretical foundation to serve as a guide to establish policies for corporate operation of imported grain logistics systems.