• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.623-624
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• 2009

본 논문에서는 선박 등에서 사용되는 자재관리 시스템에서 자재를 효율적으로 배치하기 위한 것이다. 선박자재 관리 시에 제한 시간 안에 자동으로 최적화된 요소를 낭비 없이 추출할 수 있는 알고리즘을 제안하여 실제 선박자재 관리시스템에 적용한다.

• 한국정보통신설비학회:학술대회논문집
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• 2006.08a
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• pp.111-116
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• 2006

통신용 지하 관로 자재로는 주로 100mm관(PVC관, FC관)과 50mm관(FC관)이 사용되고 있으며, 이들 관자재의 품질은 관로 시공 품질 뿐 아니라 케이블 포설을 위한 선로 구성에 큰 영향을 미치고 있어, 관자재의 품질 확보는 매우 중요하다고 할 수 있다. 관자재의 품질 성능을 나타내는 방법으로는 편평시험(5% 및 100% 변형하중)과 충격시험 결과를 많이 사용하고 있으나, 관로 시공 현장에서 이러한 성능 시험을 한다는 것은 현실적으로 불가능하여, 대부분의 현장에서는 관자재의 두께나 무게와 같은 물성치 측정으로 품질관리를 하고 있다. 이에 본 논문에서는 관자재의 물성치와 품질 성능간 상호 관계를 분석한 후, 상관성이 높은 항목들을 도출함으로써, 관종 별의 관자재의 물성치와 품질 성능간에는 상관성이 매우 높은 인자들이 있다는 것을 규명하였으며, 이를 통하여 관자재의 물성치 만으로도 품질 성능을 객관적으로 판단할 수 있는 근거를 제시하였다. 이를 이용하여 관로 시공 현장에서 관자재 품질관리와 시공 품질 향상에 활용할 수 있도록 하였다.

• The KIPS Transactions:PartD
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• v.16D no.3
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• pp.433-440
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• 2009

As information technology of constructional area develops recently, web-based on-line system is rapidly increasing to provide information on diverse constructional materials so as to enhance productivity of constructional business and to reduce cost. Since the constructional materials information provided by these systems, i.e., quality, specification, etc are not standardized, however, the staffs on the constructional site suffer considerable difficulties in using materials information when acquiring information on specific materials, e.g., using diverse information systems or repeating similar jobs. Thus, this research typified information items of constructional materials on the basis of GDAS and designed multi system model to control integrated information on constructional materials. This system can efficiently control and utilize materials information by supporting automatic classification of constructional materials to which OmniClass Part-22 and UNSPSC are applied, conditional complex retrieval of materials information, real-time automatic embodiment of electronic catalog and retrieving/controlling RFID.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.523-528
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• 2006

The management of construction materials is one of the important administration factor to perform construction projects. If it is not flexible to supply necessary materials to a workplace at a proper time, some problems such as a construction cost increase, an operation delay, a lowering of work efficiency and etc. could occur during the progress of work. Therefore, tracking the precise location of materials is important and necessary to input materials in the accurate place. Although Location sensing techniques comprise GPS, Active Badge, EasyLing and so forth, there are technical limitations to apply these techniques on construction site. Accordingly, in this paper, we propose the technically feasible method to automatically locate materials on site using recent RFID and wireless network technologies.

• Korean Journal of Construction Engineering and Management
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• v.9 no.2
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• pp.159-169
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• 2008

Recently, domestic construction projects Have become more high-rised, bigger, sophisticated, so necessity of logistics and progress management through application of various management theories has also been increased and development of IT technologies like RFID can help to improve management method, although the existing logistics and progress management studies are applied only to single progress or important material. It is a basic research for integrated framework for logistics and progress management. An analysis on the characteristics of RFID tech was performed for major materials or components of each work item in office building projects. This paper will make foundation of integrated framework for logistics and progress management in construction project, utilizing RFID technology by analysing materials type like materials which can be chased and measured, materials which can be chased and measured by certain methodologies, materials which can be chased and measured by future technologies, materials which are difficult to be chased and measured. So we can effectively control logistics and progress management, appling the optimum RFID technology to each construction project, and we need to study out solution in order to overcome RFID technology limitation through development of specification counterproposal about delicate materials of the RFID technology application.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.43 no.1
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• pp.79-89
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• 2023

The inventory of many materials requires a large storage space, and the longer the storage period, the higher the potential maintenance cost. When materials are stored on a construction site, there are also concerns about safety due to the reduction of room for movement and working. On the other hand, construction sites that do not store materials have insufficient inventory, making it difficult to respond to demands such as sudden design changes. Ordering materials is then subject to delays and extra costs. Although securing an appropriate amount of inventory is important, in many cases, material management on a construction site depends on the experience of the site manager, so a reasonable material inventory management plan that reflects the construction conditions of a site is required. This study proposes an economical material management method by reflecting variables such as the status of the preceding and following activities, site size, material delivery cost, timing of an order, and quantity of orders. To this end, we set the appropriate inventory amount while adjusting related activities in the activity network, using float time for each activity, the size of the yard, and the order quantity as the main variables, and applied a genetic algorithm to this process to suggest the optimal order timing and order quantity. The material delivery cost derived from the results is set as a fitness index and the efficiency of inventory management was verified through a case application.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.490-493
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• 2002

There have to be a pooled procurement in order to control construction in every stage. And we need also efficient supply chains to utilize the process. Researching and developing the method, which make it possible the supply chain management by modeling for Internet-enabled pooled procurement in construction, through breakdown in materials is currently in-progress the inside and out side of country. The objective of this paper is to find a reform while modeling the production process of cable duct moreover understanding the wasting factors in each step.

• Journal of Korea Society of Industrial Information Systems
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• v.2 no.2
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• pp.65-76
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• 1997

철강제조업 정보SYSTEM에 CIM(Computer Integrated Manufacturing)을 적용한 결과 설비와 정보의 자동화와 더불어 인력자원의 성력화에 의한 인원 및 자원의 절감등이 주요 효과로 나타났다. 영업관리, 자재관리, 생산관리, 출하관리, 설비관리를 시스템화하여 수요예측에 의한 자재·제품·재고 보유량을 감소할 수 있었으며, 원활한 공정진해응로 제조기간의 단축이 가능하였다. 또한 효율적인 설비관리, 정보의 공유 및 실시간 제공으로 신속한 의사결정지원등의 직·간접적인 효과가 나타났다.

• Korean Journal of Construction Engineering and Management
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• v.12 no.1
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• pp.33-42
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• 2011

Part of material and inventory management is one of important factor for business interests. But importance of material and inventory management in domestic construction project has been relatively devalued. The existing study of inventory has been studied with limited individual factor about inventory management. Therefore construction material management needs improvement via an accurate prediction with whole and systematic process viewpoint. and existing theory of material and inventory introduction to construction from manufacturing needs reflecting characteristics about construction project. This paper suggests material management process for economic material management. This paper to make a unit curtain wall of case construction project comparison between total cost of existing material management process and total cost of economic order quantity of proposal material management process To verify usefulness of order point and order quantity determination process.

• Proceedings of the KAIS Fall Conference
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• 2002.05a
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• pp.99-101
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• 2002

효율적인 기업 경영을 위해서는 업무의 전산화 작업이 필요하다는 것은 이미 널리 알려진 사항이다. 또한 전산화작업도 요즈음에는 어느 곳에서든지 접촉이 가능한 인터넷을 이용해 실시간 업무에 대한 접근이 가능하도록 설계되어지고 있다. 그래야만 데이터의 효율적 관리와 업무능력을 향상시킬 수 있다. 이러한 요구를 충족시키기 위해서 전산화가 미진한 기업에 한꺼번에 큰 변화를 주는 것은 오히려 업무상의 효율을 저하시킬 수 있으므로 기업경영에 가장 기본이 되는 생산관리, 영업관리, 자재관리 등을 분야로 나누어 개발하는 것이 기업의 부작용을 최소한 줄이는 것이 경제적, 기능적 측면에서 매우 유리할 것이다. 본 연구에서는 신화기업의 업무가 지금까지 단순히 수작업으로만 해왔던 기업내의 모든 관리를 생산관리, 영업관리, 자재관리 둥의 분야로 나누어 개발한 뒤 나중에 각각의 독립된 업무를 통합하고 또한 이를 인터넷을 이용하여 원격지에서 요구하는 자료의 접근이 가능하게 하는 인터넷 업무 전산화 작업 개발에 목적을 두고 있다.