• 산업경영시스템학회지
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• 제25권4호
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• pp.8-15
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• 2002

This paper proposes a case study to treat planning and scheduling in factory of supply chain. In fact, the planning and the scheduling of a factory are not easily solved because of constraints of facility resources, material requirements, allowed planning times, and so on. However many packages are developed by vendors in Advanced Planning and Scheduling(APS) aspects to solve these problems. Therefore, in this paper, we analyze problems of an electronic company and apply the tool, Factory Planner(FP), to solve problems. The FP, which was developed by if technologies, is very popular planning and scheduling tool in the world. Also, the tool is successfully applied to many fields.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2003년도 추계공동학술대회
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• pp.707-720
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• 2003

Product factory is a real-time financial product design system for the Internet customers. The hybrid product is a product taking combined characteristics of two different products. Hybrid product factory is a product factory that designs hybrid products from two different products based on both business rules and customer requirements. Though the importance of product factory is emphasized in the industry, there has not been much research peformed regarding product factory. In this research, we developed a product factory system that designs hybrid products. To design a hybrid product, it is necessary to have a method to combine attributes and values of two different products, and a method to control the combining operations to properly reflect business requirements. In this research, we developed four different combining operators and business rule representations. In addition, to prove the effectiveness of this methods, we implemented a prototypical system and demonstrated on cases regarding financial loan products.

• 한국IT서비스학회:학술대회논문집
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• 한국IT서비스학회 2006년도 추계학술대회
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• pp.551-555
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• 2006

Ubiquitous technology(UT)의 발전과 더불어 특성 산업에 가시적인 적용 성과가 나타남으로써, 전통적인 제조업에서도 ubiquitous 환경 구현 및 제조기술(MT: Manufacturing Technology)과의 융합을 통한 제조혁신의 필요성이 대두되고 있다. 따라서, 본 연구에서는 ubiquitous factory 구현을 위한 체계적인 서비스 개발을 위해서, factory에 적용할 수 있는 특정 서비스 platform 개발을 목적으로 한다. 이를 위해, 서비스 개발 platform과 관련된 연구와 ubiquitous 서비스 개발 방법론 등을 분석하여 factory 현장에 바로 적용할 수 있는 platform을 개발하였다. 개발된 platform을 검증하기 위해 사례분석을 통해 연관분석을 실시함으로써 본 연구의 타당성을 검토하였다. 본 연구에서 개발된 platform은 ubiquitous factory를 구현하는데 활용될 예정이며, 향후 적용을 통한 개선사항을 도출하여 제조혁신을 위한 방법론으로 정립할 예정이다.

• International journal of advanced smart convergence
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• 제13권2호
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• pp.265-275
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• 2024

Smart factory is a remarkable development from traditional manufacturing systems to data-based smart manufacturing systems that can connect and process data continuously, collected from machines, production equipment to production and business processes, capable of supporting workers in making decisions or performing work automatically. Smart factory is the key and center of the fourth industrial revolution, combining improvements in traditional manufacturing activities with digital technology to help factories achieve greater efficiency, contributing to increased revenue and reduce operating costs for businesses. Besides, the importance of smart factories is to make production more quality, efficient, competitive and sustainable. Businesses in Vietnam are in the process of learning and applying smart factory models. However, the number of businesses applying the pine factory model is still limited due to many barriers and difficulties. Therefore, in this paper we conduct a survey to assess the needs and current situation of businesses in applying smart factories and propose some specific solutions to develop and promote application of smart factory model in Vietnamese businesses.

• 국제지역연구
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• 제20권2호
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• pp.85-111
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• 2016

최근, 글로벌 반도체기업들의 중국내 직접투자가 지속적으로 증가하고 있다. 특히, 중국내에서 제조를 위한 공장설립이 늘고 있으며, 이는 저렴한 인건비를 활용하기 위한 차원보다는 늘어나는 중국내 수요에 대응하려 투자하고 있다. 이에 따라 본 연구에서는 한국과 대만 글로벌 반도체기업들에 대한 중국내 직접투자 배경과 과정에 대해서 살펴보았다. 조사결과 삼성반도체는 1996년 Suzhou에 후 공정 공장을 설립하였으나 전 공정의 일괄생산방식으로 투자한 것은 2014년 Xian공장이었다. 그리고 SK하이닉스는 2006년 Wuxi에 처음 공장을 설립하였으며 이후 2009년 중국기업과 합작으로 후 공정 공장인 Hitech Semiconductor를 설립하였고 이어 2015년 Chongqing에 후 공정 공장을 설립하였다. 아울러 TSMC는 2004년 Shanghai에서 처음 공장을 가동하였으며 나아가 2018년에 Nanjing공장이 완공예정이다. 마지막으로 UMC는 2000년대 초반 중국 현지기업인 HJT에 지분을 소유하는 방식으로 중국에 진출하였으며, 이후 직접투자로 빠르면 2016년 말 Xiamen공장이 완공된다. 결과적으로 각사 대부분은 주로 중국시장을 공략하기 위한 목적으로 중국에 공장설립을 한 것으로 나타났으나 이외에도 삼성반도체는 리스크 관리 그리고 SK하이닉스는 상계관세를 회피하기 위한 목적이 있었다. 본 연구결과를 토대로 다른 반도체기업들에 차후 중국내 직접투자에 있어 도움이 되는 전략적 시사점들을 제시하였다.

• Industrial Engineering and Management Systems
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• 제8권4호
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• pp.228-238
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• 2009

This paper first presents two supply chain design problems: 1) a factory location setting and factory selection problem, and 2) a factory location setting and factory/supplier selection problem. The first involves a number of location known retailers choosing one factory to supply their demands from a number of factories whose locations are to be determined. The goal is to minimize the transportation and manufacturing cost to satisfy the demands. The problem is then augmented into the second problem, where the procurement cost of the raw materials from a chosen material supplier (from a number of suppliers) is considered for each factory. Economic beneficial is taken into account in the cost evaluation. Therefore, the partner selections will influence the cost of the supply chain significantly. To solve these problems, an agent gaming and genetic algorithm hybrid method (AGGAHM) is proposed. The AGGAHM consecutively and alternatively enable and disable the advancement of agent gaming and the evolution of genetic computation. Computation results on solving a number of examples by the AGGAHM were compared with those from methods of a general genetic algorithm and a mutual frozen genetic algorithm. Results showed that the AGGAHM outperforms the methods solely using genetic algorithms. In addition, various parameter settings are tested and discussed to facilitate the supply chain designs.

• International journal of advanced smart convergence
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• 제9권3호
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• pp.246-252
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• 2020

Facial recognition is a biometric technology that is used in various fields such as user authentication and identification of human characteristics. Face recognition applications are practically used in various fields, but very few applications have been developed to improve the factory work environment. We implemented applications that uses face recognition to identify a specific employee in a factory .work environment and provide customized information for each employee. Factory workers need documents describing the work in order to do their assigned work. Factory managers can use our application to register documents needed for each worker, and workers can view the documents assigned to them. Each worker is identified using face recognition, and by tracking the worker's face during work, it is possible to know that the worker is in the workplace. In addition, as a mobile app for workers is provided, workers can view the contents using a tablet, and we have defined a simple communication protocol to exchange information between our applications. We demonstrated the applications in a factory work environment and found several improvements were required for practical use. We expect these results can be used to improve factory work environments.

• 한국CDE학회논문집
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• 제12권5호
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• pp.382-394
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• 2007

Nowadays, manufacturing industries undergo constantly growing pressures for global competitions, and they must shorten time and cost in product development and production to response varied customers' requirements. Digital virtual manufacturing is a technology that can facilitate effective product development and agile production by using digital models representing the physical and logical schema and the behavior of real manufacturing systems including products, processes, manufacturing resources and plants. For successful applications of this technology, a digital virtual factory as a well-designed and integrated environment is essential. In this paper, we developed a new classification and coding system for effective managements of digital virtual factory objects, and implement a supporting application to verify and apply it. Furthermore, a digital virtual factory layout management system based on the classification and coding system has developed using XML, Visual Basic.NET and FactoryCAD. By some case studies for automotive general assembly shops of a Korean automotive company, efficient management of factory objects and reduction of time and cost in digital virtual factory constructions are possible.

• 대한건축학회논문집:구조계
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• 제35권6호
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• pp.139-146
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• 2019

The modular building system is a type of prefabricated construction method, and is an industrialized building system that transports, assembles, and completes a three-dimensional module manufactured in a factory to the site. The economics of a modular building system where 50 to 80% of the entire process takes place in a modular factory is dominated by productivity of the factory manufacturing process. Since the building of the module is finished by the combination of unit parts produced by each material, it is necessary to manage the process in each module unit. However, currently marketed process control programs do not reflect the features of these modular methods. In this paper, we introduce Modular Factory Design software(MFD 2019) that can make modular unit production plan which reflects production base(modular factory) and production target(application and number of modular units). In order to verify software compatibility and reliability, two production plans with different production methods were formulated and simulated.

• 대한안전경영과학회지
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• 제24권2호
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• pp.135-142
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• 2022

The smart factory is an important system that can reduce defects, maximize productivity, and respond to customer needs, from the labor-intensive era of traditional small and medium-sized manufacturing companies through the automation era to CPS using ICT. However, small and medium-sized manufacturers often fall short of the basic stage due to economic and environmental constraints, and there are many companies that do not even recognize the concept of a smart factory. In this situation, to expand the smart factory of small and medium-sized enterprises, the project to support the establishment of a smart factory for the win-win between large and small enterprises. The win-win smart factory construction support project provides a customized differentiation program support project according to the size and level of the company for all domestic manufacturing SMEs regardless of whether or not they are dealing with Samsung. In this study, we analyze the construction status and introduction performance of companies participating in the win-win smart factory support project to find out whether they have been helpful in management and to find efficient ways to improve support policies, and to suggest the direction of continuous support projects to improve the manufacturing competitiveness of SMEs in the future.