• Title/Summary/Keyword: 재고관리 비용

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Can Non-Fuel Costs be Considered as Variable Costs in Generation Market? (연료비 이외의 항목도 발전시장의 변동비로 간주할 수 있는가?)

  • Cho, Sung Bong
    • Environmental and Resource Economics Review
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    • v.20 no.3
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    • pp.567-593
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    • 2011
  • In 2005, five Korean generation companies suggested to include non-fuel ancillary costs incurring in the process of managing fuels and ashes as variable costs in Korean Cost-Based Pool. OLS analysis seeking statistical relation with the amount of generation did not provide sufficient ground for such argument. However, some cost items in this category showed meaningful statistical relation for certain generation facilities hinting some possibilities for the candidate of variable costs in the future. Time lag related to cost evaluation, problems related to inventory control and accounting method related to this may block the statistical relationship with the amount of generation. Unified criteria and standardization of the data are necessary before we proceed further to consider them as variable costs.

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Demand Prediction of Furniture Component Order Using Deep Learning Techniques (딥러닝 기법을 활용한 가구 부자재 주문 수요예측)

  • Kim, Jae-Sung;Yang, Yeo-Jin;Oh, Min-Ji;Lee, Sung-Woong;Kwon, Sun-dong;Cho, Wan-Sup
    • The Journal of Bigdata
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    • v.5 no.2
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    • pp.111-120
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    • 2020
  • Despite the recent economic contraction caused by the Corona 19 incident, interest in the residential environment is growing as more people live at home due to the increase in telecommuting, thereby increasing demand for remodeling. In addition, the government's real estate policy is also expected to have a visible impact on the sales of the interior and furniture industries as it shifts from regulatory policy to the expansion of housing supply. Accurate demand forecasting is a problem directly related to inventory management, and a good demand forecast can reduce logistics and inventory costs due to overproduction by eliminating the need to have unnecessary inventory. However, it is a difficult problem to predict accurate demand because external factors such as constantly changing economic trends, market trends, and social issues must be taken into account. In this study, LSTM model and 1D-CNN model were compared and analyzed by artificial intelligence-based time series analysis method to produce reliable results for manufacturers producing furniture components.

The Value of Time in Intercity Freight Transportation (지역간 화물운송의 시간가치 추정)

  • 최창호;임강원
    • Journal of Korean Society of Transportation
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    • v.17 no.5
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    • pp.43-55
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    • 1999
  • The value of time in freight transportation describes the importance of goods during transport and shows the direction of efficient logistic management having inventory cost in transporting The value of time differs from class to class in freight transportation. It is due to the differences of shipper's willingness to Pay for time saving. In this research the value of time in intercity freight transportation of manufacturers in Korea was estimated as follows: first, the Perception factors which were the important criteria of shippers for choosing truck were sampled. second, the shippers were classified into three homogeneous classes. third, the value of time of each class was estimated by using multinominal logit model. The results of this research showed that the value of time in freight transportation was different from every class, that the shipper had to Pay 1,680 won for saving one hour Per each shipment, and that the inventory cost in transporting occupied 9.54% in the mean freight Price.

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A study of SCM strategic plan: Focusing on the case of LG electronics (공급사슬 관리 구축전략에 관한 연구: LG전자 사례 중심으로)

  • Lee, Gi-Wan;Lee, Sang-Youn
    • Journal of Distribution Science
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    • v.9 no.3
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    • pp.83-94
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    • 2011
  • Most domestic companies, with the exclusion of major firms, are reluctant to implement a supply chain management (SCM) network into their operations. Most small- and medium-sized enterprises are not even aware of SCM. Due to the inherent total-systems efficiency of SCM, it coordinates domestic manufacturers, subcontractors, distributors, and physical distributors and cuts down on cost of inventory control, as well as demand management. Furthermore, a lack of SCM causes a decrease in competitiveness for domestic companies. The reason lies in the fundamentality of SCM, which is the characteristic of information sharing, process innovation throughout SCM, and the vast range of problems the SCM management tool is able to address. This study suggests the contemplation and reformation of the current SCM situation by analyzing the SCM strategic plan, discourses and logical discussions on the topic, and a successful case for adapting SCM; hence, the study plans to productively "process" SCM. First, it is necessary to contemplate the theoretical background of SCM before discussing how to successfully process SCM. I will describe the concept and background of SCM in Chapter 2, with a definition of SCM, types of SCM promotional activities, fields of SCM, necessity of applying SCM, and the effects of SCM. All of the defects in currently processing SCM will be introduced in Chapter 3. Discussion items include the following: the Bullwhip Effect; the breakdown in supply chain and sales networks due to e-business; the issue that even though the key to a successful SCM is cooperation between the production and distribution company, during the process of SCM, the companies, many times, put their profits first, resulting in a possible defect in demands estimation. Furthermore, the problems of processing SCM in a domestic distribution-production company concern Information Technology; for example, the new system introduced to the company is not compatible with the pre-existing document architecture. Second, for effective management, distribution and production companies should cooperate and enhance their partnership in the aspect of the corporation; however, in reality, this seldom occurs. Third, in the aspect of the work process, introducing SCM could provoke corporations during the integration of the distribution-production process. Fourth, to increase the achievement of the SCM strategy process, they need to set up a cross-functional team; however, many times, business partners lack the cooperation and business-information sharing tools necessary to effect the transition to SCM. Chapter 4 will address an SCM strategic plan and a case study of LG Electronics. The purpose of the strategic plan, strategic plans for types of business, adopting SCM in a distribution company, and the global supply chain process of LG Electronics will be introduced. The conclusion of the study is located in Chapter 5, which addresses the issue of the fierce competition that companies currently face in the global market environment and their increased investment in SCM, in order to better cope with short product life cycle and high customer expectations. The SCM management system has evolved through the adaptation of improved information, communication, and transportation technologies; now, it demands the utilization of various strategic resources. The introduction of SCM provides benefits to the management of a network of interconnected businesses by securing customer loyalty with cost and time savings, derived through the consolidation of many distribution systems; additionally, SCM helps enterprises form a wide range of marketing strategies. Thus, we could conclude that not only the distributors but all types of businesses should adopt the systems approach to supply chain strategies. SCM deals with the basic stream of distribution and increases the value of a company by replacing physical distribution with information. By the company obtaining and sharing ready information, it is able to create customer satisfaction at the end point of delivery to the consumer.

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A Study of raw materials loss prevention measurement based on IP Camera and RFID Box (IP Camera와 RFID Box를 이용한 원자재 유실 방지 방안 연구)

  • Choi, Kyong-Ho;Kim, Kuinam J.
    • Convergence Security Journal
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    • v.15 no.3_2
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    • pp.71-76
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    • 2015
  • Global companies are building global production network for the demand of the global market. However, the establishment and operation of overseas plants make the unexpected case like theft, low will to produce and salary issue of local workers. Thus in this paper, we propose the raw materials loss prevention model based on IP Camera and RFID Box for raw materials management of overseas plants. This model can prevent the theft or loss of raw materials write inventory up in real-time. This model can be allows us to realize the cost-effective production management because it enables remote inventory management. And this model can prevent brand image danage and profit loss due to reject product.

Beamforming RFID Reader based Convenient Shopping System (빔 형성 RFID 리더기를 이용한 편리한 쇼핑 시스템)

  • Park, Byeong-Wook;Choe, Sang-Ho
    • The Journal of the Korea Contents Association
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    • v.9 no.6
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    • pp.37-44
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    • 2009
  • In this paper, we present a switched beamforming RFID reader and propose a convenient shopping system using it. The smart gate with the switched beamforming RFID reader(s) improves tag detection probability, tag false alarm probability, automatic detection functionality of shopping system compared to existing RFID based systems. The proposed system consists of a smart gate to read and verify the tags within cart, a check-out counter to approve customer purchase, and a central server to manage inventory & delivery and to analyze customer purchase trend. The proposed shopping system is more practical, convenient, and cost-effective to A/S than existing RFID shopping systems.

Assessing the Effects of Supply Uncertainty on Inventory-Related Costs (공급업자의 공급불확실성이 재고관리 비용에 미치는 효과에 관한 연구)

  • 박상욱
    • Journal of the Korean Operations Research and Management Science Society
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    • v.26 no.3
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    • pp.105-117
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    • 2001
  • This paper models supply uncertainty in the dynamic Newsboy problem context. The system consists of one supplier and one retailer who places an order to the supplier every period to meet stochastic demand. Supply uncertainty is modeled as the uncertainty in quantities delivered by the supplier. That is, the supplier delivers exactly the amount ordered by the retailer with probability of $\beta$ and the amount minus K with probability of (1-$\beta$). We formulate the problem as a dynamic programming problem and prove that retailer’s optimal replenishment policy is a stationary base-stock policy. Through a numerical study, we found that the cost increase due to supply uncertainty is significant and that the costs increase more rapidly as supply uncertainty increases. We also identified the effects of various system parameters. One of the interesting results is that as retailer’s demand uncertainty, the other uncertainty in our model, increases, the cost increase due to supply uncertainty becomes less significant.

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Smart System of Warehouse Management using RFID (RFID를 이용한 스마트 창고관리 시스템)

  • Kim, Young-Ho;Choi, Byoung-Yong;Jun, Byoung-Hwan
    • Proceedings of the Korea Information Processing Society Conference
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    • 2005.11a
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    • pp.1425-1428
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    • 2005
  • 유비쿼터스 컴퓨팅의 일환으로 RFID를 사용한 많은 시스템이 개발되고 있는 시점에서 물류관리에 RFID칩이 상용화될 것을 예측하며 그 응용으로 창고관리 시스템을 개발한다. 지방 중소업체의 경우 소규모 창고관리에도 비용과 효과 면에서 인력난을 격고 있는 상황에서 자동화 창고관리 시스템의 필요성이 절실하다. 창고관리의 자동화 방법으로 유비쿼터스 요소 중 상황인식 요소를 추가하여 시스템을 설계 및 구현한다. RFID리더기를 제어하는 클라이언트를 구성하고 서버에 DBMS시스템을 구축, WEB을 통하여 사용자 레벨에 따른 창고관리 시스템을 제어하도록 구현한다. DB의 정보를 기초로 하여 상황추출기를 통한 물리적 환경상황과 사용자-컴퓨터 상호작용 이력상황 등을 서비스한다. 결과적 창고관리 시스템의 자동화를 구현하여 재고수량의 간단한 파악, 자재 반 출입의 책임소재가 개선되었다.

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A Methodology for Efficient Production and Distribution based on Genetic Algorithm (유전자 알고리즘 기반의 효율적 생산분배 방법론)

  • Ahan Jung-Rim;Seo Kwang-Kyu
    • Proceedings of the KAIS Fall Conference
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    • 2004.06a
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    • pp.327-330
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    • 2004
  • 공급사슬은 공급자, 공장, 유통센터, 소비자 둥의 네트워크로 구성되고, 이러한 공급사슬네트워크에서 생산과 분배의 각 활동사이의 상호작용에 대해 고려해야만 한다. 공급사슬관리(SCM) 연구에 있어서 생산과 분배에 대한 총비용을 최소화하는 것은 중요한 문제인데, 본 연구에서는 다설비, 다제품에 대한 생산과 분배를 동시에 고려하는 연구를 수행하였다. 이를 위하여 공급사슬 네트워크에서의 총비용을 최소화하는 수학적 모델을 제안하였고, 유전자 알고리즘기반의 총비용의 근사최적해와 각각의 생산비용, 재고비용, 수송비용을 얻을 수 있었다.

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Design and Implementation of Forging Work-in-Process Management System using Smartphone and GIS (GIS와 스마트폰을 이용한 단조 재공 관리 시스템 설계 및 구현)

  • Park, Yonggu;Song, Wonyong;Jeong, Dongwon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2010.11a
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    • pp.1474-1477
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    • 2010
  • 이 논문에서는 보다 효율적인 단조 재공 관리를 위한 새로운 시스템을 제안한다. 지금까지 효율적인 재공 또는 재고 관리 통해 생산성을 향상시키기 위한 다양한 연구가 진행되어 왔다. 특히 바코드, RFID 기술, 영상 인식 기술 등 다양한 IT 기술을 접목을 시도해 왔다. 그러나 단조 재공관리 시스템의 특성상 이러한 접근 방법을 적용하는데 많은 문제점을 야기한다. 열악한 환경으로 인환 높은 훼손 가능성, 특정 단말기에 대한 종속성과 높은 관리 비용, 부정확한 적재 위치 관리 및 최적의 적재 위치 파악이 어렵다는 문제점을 지닌다. 따라서 이 논문에서는 기존 접근 방법의 한계를 극복하고 단조 재공 관리 환경에 적합한 새로운 시스템을 제안한다. 제안 시스템은 스마트폰과 GIS 시스템을 이용하며 앞서 언급한 많은 문제점을 해결 및 보완할 수 있다는 장점을 지닌다.