• Proceedings of the KAIS Fall Conference
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• 2001.05a
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• pp.305-308
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• 2001

(주)한길은 콘크리트 2차를 가공하는 있는 중소기업이다. 이 업체는 현재 재고, 생산, 출구 매출 관리 등 업무의 전산화가 전혀 이루어져 있지 않기 때문에 업체의 특성상 항상 제품의 적절량을 보유하여야 하는 사항에 있어서는 업무가 비효율적으로 이루어지고 있다. 뿐만 아니라 재고, 생산, 출고 관리가 동일한 장소에서만 이루어지는 것이 아니라 지역적으로 분리된 곳에서 이루어지고 있어 정보관리와 공유에 있어서 많은 어려움을 겪고 있다. 이에 본 연구에서는 이 업체의 특성에 맞는 효율적인 분산 재고 관리 프로그램의 개발과 지역적으로 분리되어 있는 곳을 근거리 네트워크와 전화접속 네트워크를 혼합한 하이브리드 형태로 구축하여 경제적으로 최적인 재고 관리 시스템을 제공하고, 업체의 생산성 및 경쟁력 향상을 도모하고자 한다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.702-707
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• 2006

There have been certain extent of material inventory in construction site because of difficulties in ordering by small quantity, strategy of securing future requirements and prevention of delay. However, carrying these inventory entails a financial cost called inventory holding cost and decrease construction productivity, so proper inventory management in construction industry is important for construction efficiency and cost reduction. This study tries to find analytical method of inventory management. It includes ordering decision which decide how much to order and when to order. Setting these strategies including deciding safety inventory, input and ouput variability are able to controled.

• Journal of the Korea Society for Simulation
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• v.24 no.1
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• pp.1-8
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• 2015

This research focuses on the method of inventory management to find out the best way in various SCM. There are several comparable methods of inventory management like Min-Max, regular interval, fixed target inventory that have different lead-time and demand for each product. Also, the inventory performances between the case of three-stages and two-stages in SCM are analyzed. 8 scenarios for the simulation are suggested considering order ways and stages. Input data for the simulation is from the result of the previous studies and actual data in the market. The performance measurements are selected as sales revenue, total number of sales, total delivery cost, total inventory shortages, the number of inventory shortage occurrence, the loss for inventory shortages, average inventory, handling cost, net profit. According to the results of the simulation, fixed target inventory management is better than existing inventory management method by net profit and inventory and so on. Also, it was confirmed that the increase in profit is obtained when SCM stages is reduced from three-stages to two-stages in existing SCM. The result of the research provides significant meaning that newly introduced target inventory management system shows good performance and SCM performance can be improved by reducing the stages.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.5
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• pp.237-244
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• 2018

The Smart Factory level of manufacturing factories of SMEs now lacks a system for grasping the accurate inventory amount associated with inventory movements in managing warehouses at the basic level. Also, it is difficult to manage accurate materials for loss of data due to worker manual work and production method due to experience. In order to solve this problem, in this paper, automatic acquisition of inventory to minimize manual work to grasp workers' Inventory and improve automation is done. In the smart warehouse management system using the IoT-based autonomous mobile module, the autonomous mobile module acquires the data of the inventory storage while moving through the line. In order to grasp the material of the Inventory storage, The Camera module recognizes the name of the inventory storage. And Then, If output matches, the data measured by the sensor is transferred to the server. This data can be processed, saved in a database, and real-time inventory quantity and location can be grasped in a web-based monitoring environment for administrators. The Real-time Automatic Inventory (RAIC) systems is reduce manual tasks and expect the effects of automated inventory management systems.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.10
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• pp.1-8
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• 2016

Automation of inventory management in a steel plate factory was a difficult problem unresolved for a long time. And now, it is also necessary to work diligently in the steel industry on efficient inventory management of thick plates. So far, the environmental characteristics of stacked thick plates means it is not easy to apply advanced technology for their automatic identification. In this paper, we propose a thick-plate robotic scanning system based on radio-frequency identification (RFID) that can provide quick and accurate inventory management by acquiring plate information after the scanning automatically recognizes the RFID tags under difficult load conditions. This system is equipped with a crane to move the plates in a pulled-up operation. It is equipped with a plate-only linear dipole antenna only for scanning the position of the plate tag. Only the linear dipole antenna, while moving the x-axis and y-axis information, automatically identifies the tag information attached to the plate. The tag information acquired by the system is used for stockpiling and is managed by steel plate inventory control software. The effectiveness of the proposed system is verified through field performance evaluation. As a result, the recognition rate of the plate tags is 99.9% at a maximum distance of 320 cm. The developed thick-plate antenna showed excellent performance compared to an existing commercial antenna.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10c
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• pp.130-132
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• 2002

소규모 업체를 모델로 비효율적인 업무의 문제점을 분석하여 이를 설계하고 구현하였다. 전체 기능은 기초정보관리, 판매관리, 재고관리, 고객관리로 구성하였다. 특정 소규모 점포의 업무를 전산 시스템화하는 것이 목표이다. 그러나 구현될 시스템은 규모가 큰 완벽한ERP가 아닌 직원 1인인 업체의 특별한 업무시스템으로 구현되어 진다. 시스템의 구성은 확인된 사용자에 대하여 각종 데이터를 입력하고 각종 전표 및 현황을 출력하는 형태로 구성되어진다. 본 시스템은 어느 한 회사의 국한되지 않은 패키지형태의 시스템이다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1999.10a
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• pp.15-15
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• 1999

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.449-455
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• 2020

Inventory management is one of the important business functions for manufacturing companies to determine market responsiveness. Customers' needs are diversifying, and the life cycle of products is decreasing, thus increasing the importance of inventory management. However, for small-scale manufacturing companies, investing in an IT system for inventory management is practically difficult. In this study, we introduce an inventory and warehouse management model that can be applied simply and quickly in small-scale manufacturing companies. Firstly, we introduce the concept of the properties of inventory and provide an analytical methodology based on the age and quantity of the inventory. Secondly, in accordance with the properties of the inventory, we introduce location management rules for warehouse operation. To apply the proposed model, we studied a wallpaper manufacturing company and verified the applicability of the proposed methods in the field. The proposed model can be applied immediately as part of on-site improvement activities by small-scale manufacturing companies, and inventory management activities are expected to reduce bad long-term inventory and further secure storage capacity for warehouses.

• Proceedings of the Safety Management and Science Conference
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• 2005.11a
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• pp.140-144
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• 2005

remanufacturing 시스템의 공정을 다룬 모델은 그들의 경제적인 결론 평가에 집중하여 보여졌다. 특별히 이러한 모델은 분리된 구성품의 목적과 정도에 대한 의사결정을 보조하였으며, 결론적으로 복구될 수 있는 아이템의 경제적 가치를 사용 이러한 아이템의 재고 보유 원가를 얻을 수 있다고 하였다. 이러한 정보는 재고 관리 정책 결정을 위해 사용될 수 있으며 경제적 가치에 접근하기 위해 이상의 평균 원가 접근은 순 현재 가치 방법으로 비교할 수 있다. 재고관리 관점으로부터 remanufacturing 시스템에서의 수집 방식을 추가하여 고려하였으며, 향후 폐차업의 리싸리클링 분야에 접목하고자 한다. 경제적 평가 모델로부터의 반영된 결과는 remanufacturing 시스템뿐만 아니라 체계적인 평가를 제조업에서 추가하여 연구 할 수 있다.

• Journal of the Korea Society of Computer and Information
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• v.12 no.5
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• pp.273-284
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• 2007

This paper studies a periodic review inventory model with an e-MarketPlace transaction in reconfigurable manufacturing system(RMS). A decision maker can expand/reduce production capacity/quantities and/or replenish/dispose inventories from/to e-MarketPlace urgently to satisfy the stochastic demands. If inventories are replenished or disposed through e-MarketPlace, this leadtime is shorter than the production leadtime, but unit purchasing or selling cost is more expensive than that of expanding capacity or reducing production quantities respectively. Henceforth, trade-off on these alternatives is considered. In addition to this, in order to consider the economy of scale, our model includes the fixed cost for purchasing from e-MarketPlace and capacity expansion. We use dynamic programming and K convexity methods to characterize the nature of the optimal policy. Finally, We present the optimal inventory control policy which is composed by the combinations of a base stock and (s,S) type policy.