• 한국정밀공학회지
• /
• 제19권7호
• /
• pp.116-124
• /
• 2002

The planning of part feeder and other manufacturing automation equipments is almost always underestimated. Planning ahead for those crucial pitfalls can permit steps to take to minimize heir impacts, especially if the problems can be discovered in the planning phase, not on the shop floor. Planning process is an engineering process, namely a series of trade-offs. The effective trade-offs in the shortest amount of time can be possible with the help of a computer-aided ngineering (CAE) technique. The main parts of CAE fur part feeder are database system of fabricated workpiece parts, part feeders, part feeder components. In this study, a planning process of part feeder is presented. Especially, a systematic analysis of workpiece parts and part feeders is performed for the design of databases of CAE system.

• 산업경영시스템학회지
• /
• 제22권51호
• /
• pp.221-230
• /
• 1999

Many enterprises are performing the production planning computerization for survival in unlimited competing period. But it is very difficult to directly apply many production planning softwares to the domain-specific areas of many small enterprises because one enterprise is different from the others with respect to product type, production process, and order fulfillment method. Practically most small enterprises depend on experienced production managers in production planning, so then many problems such as overtime work and cost have been appeared. The purpose of this study is to develop production planning module for order-made production system in order to reduce overtime works and surplus costs. We developed production planning module with RDBMS, which is fit for small manufacturing company. Developing this software, we use Visual Basic 5.0 to provide GUI environment for the production planning module and Microsoft Access 97 is used to construct Database. This production planning module is applied to enhancement of productivity in M manufacturing company located in Asan.

• KIEAE Journal
• /
• 제11권2호
• /
• pp.27-34
• /
• 2011

This paper is intended to deduce the planning elements of Eco-village through theory contemplation and preceding researches in order to be used as practical data of resident participating Eco-village by contemplating characteristics demonstrated in planning element utilization methods within the village. Resident participating Eco-village aims for residents who will reside in the relevant village to participate from village plans to construction. Unlike other Eco-village, residents of resident participating Eco-village make decisions autonomically through planning direction, planning elements, discussions and meetings, which are uniquely distinctive from other Eco-villages. It appears, however, that analysis on the planning element utilization methods of resident participating Eco-village is inadequate. There are various methods of village resident participation, and the methods cannot rule out the close relationship with planning elements. Hence, programs for resident participation should be devised at the time of village planning. Resident participating Eco-village should suggest measures and guidelines through finding problems in order to implement sustainable and environment-friendly life that prevent a retrograde step.

• 한국콘텐츠학회논문지
• /
• 제20권5호
• /
• pp.595-608
• /
• 2020

이 연구는 노후산업단지를 도시첨단산업단지로 조성하기 위한 계획요소를 도출하기 위해 도시첨단산업단지 조성의 문제점과 혁신체계이론, 외부효과이론을 바탕으로 핵심 계획요인을 선정하고, 델파이 조사를 통하여 최종 입지선정 계획요소를 도출하였다. 연구결과 노후산업단지 재생의 장점을 최대한 활용하여 조성사업의 효율성을 높일 수 있는 효율성 관련 계획요소, 산업단지 분양률과 경쟁력을 강화하기 위한 기업수요 요인 관련 계획요소, 입주기업의 인적자원을 유지하여 지식의 축적과 활용을 촉진하기 위한 근로자 관련 계획 요소, 인접지역과의 연계성 강화를 통한 협력적 관계형성을 위한 계획 요소 등 총 4개 영역에서 19개의 최종 요소가 도출 되었다. 이러한 계획요소들은 도시첨단산업단지 조성의 문제점으로 나타난 분양률 저조와 개발 불균형에 따른 지역 내 갈등 해결 및 지역 혁신체계 구축을 통한 지역 경제 활성화에 도움이 될 것이다.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
• /
• 제6권2호
• /
• pp.216-224
• /
• 2000

공간 계획 시스템(Spatial Layout Planning System)은 사용자의 요구에 따라 사각의 자원을 일정 공간 안에 할당하고 사용자의 만족도를 최대화함으로써 공간 효율성을 최적화하는 시스템이다. 공간 계획 문제는 방대한 범위의 공간을 탐색해야 하므로 시간과 공간적 측면에서 높은 복잡도(Complexity)를 갖는 문제이다. 또한 특정 영역의 수정 요구나 재설계 요구와 같은 사용자의 동적인 요구 사항들을 수용할 수도 있어야 한다. 본 논문에서는 CSP(Constraint Satisfaction Problems) 해결 기법 기반의 자원 할당법을 이용함으로써 효과적으로 공간 계획 문제를 해결할 수 있도록 하였으며 사용자의 요구에 따라 변화되는 제약조건은 지능형 사용자 인터페이스 모델을 통해 좀 더 향상된 결과가 도출될 수 있도록 설계 및 구현하였다. 또한, 2차원 도면에서의 수정 요구에 대한 편이성과 시각적 검증을 위해 웹 환경 하에서의 VRML(Virtual Reality Modeling Language)을 이용한 3차원 도면을 보여준다.

• 산업경영시스템학회지
• /
• 제40권2호
• /
• pp.111-120
• /
• 2017

This paper proposes an improved standard genetic algorithm (GA) of making a near optimal schedule for integrated process planning and scheduling problem (IPPS) considering tool flexibility and tool related constraints. Process planning involves the selection of operations and the allocation of resources. Scheduling, meanwhile, determines the sequence order in which operations are executed on each machine. Due to the high degree of complexity, traditionally, a sequential approach has been preferred, which determines process planning firstly and then performs scheduling independently based on the results. The two sub-problems, however, are complicatedly interrelated to each other, so the IPPS tend to solve the two problems simultaneously. Although many studies for IPPS have been conducted in the past, tool flexibility and capacity constraints are rarely considered. Various meta-heuristics, especially GA, have been applied for IPPS, but the performance is yet satisfactory. To improve solution quality against computation time in GA, we adopted three methods. First, we used a random circular queue during generation of an initial population. It can provide sufficient diversity of individuals at the beginning of GA. Second, we adopted an inferior selection to choose the parents for the crossover and mutation operations. It helps to maintain exploitation capability throughout the evolution process. Third, we employed a modification of the hybrid scheduling algorithm to decode the chromosome of the individual into a schedule, which can generate an active and non-delay schedule. The experimental results show that our proposed algorithm is superior to the current best evolutionary algorithms at most benchmark problems.

• 한국농공학회지
• /
• 제38권6호
• /
• pp.51-63
• /
• 1996

This study is about the problems found in the process of the current governments planning rural settlement area development. As a measure to solve them, It proposed the analysis method of village characteristic in terms of standard score and tried to use this method as a basic material in planning more effective rural settlement area development. On the basis of the above analysis, which is an objective basic material to solve the problems revealed in the process of the bottom-up development planning by the residents' demands, It shows the following conclusion about what method should be applied to each part according to a village's characteristics and its development level. 1. Accessibility can be a basic material for setting the local area, analyzing its settlement system, and them such development facilities as village-linking roads, rural road, or various kinds of bridges and determining the investment priority. 2. With the index of the industrial basis, we can see what village has plenty of social, economical resources including advanced industrial facilities and looking into the advance level of the industrial basis, we can get some information about determining the local area development direction such as estashing the plan to build a farm product gathering center, a collective work place, storage facilities, and special housing development. 3. Since the issue about living environment is raising it's head, compared to weakened agricultural competitive power, with the analysis of this living environment, we can get an objective basic material for solving problems caused by the local egoism and the effective investment strategy of the limited resources. Therefore, It is necessary that we should abstain from expert-centered planning and formal public opinion-collecting and on the basis of this analytic result, we should plan development. We need to continue our research about index selecting and differentiation, weight etc. and using these analysis methods, we should make up a systematic development plan by analyzing village characteristics and setting the development direction.

• 농촌계획
• /
• 제15권3호
• /
• pp.11-22
• /
• 2009

The purpose of this study is to analyze the present condition of the landscape plans(LPs) established in the Rural Village Development Projects(RVDPs) and to propose the ways to improve the LP. Toward this end, the legal system related to rural landscape and the RVDP were examined. Also, the current condition of the LPs was diagnosed through making researches on the RVDP and LP of the 10 regions. The results of examining the legal system showed that the suitable types of the LPs is 'the Specific Landscape Plan' in Rural Area. Of the development projects that have been in operation, RVDP was found to have been equipped with the system. Because the LPs can be established and the contents of formation and readjustment of rural landscape elements were broadly dealt with in RVDP. And the RVDPs consisted mostly of scenery facilities, rural village sightseeing, and income-growth. The results of examining the plan establishment procedures showed that the LPs were set up as subordinate plans of the RVDP, so structural problems such as the positions of the plans, inadequacy in the procedures of approval and collecting opinions were identified. Such problems were pointed out as the cause of the LP to deal with the contents of the basic designs of the RVDP. The schemes to resolve the problems are to give equal positions to the LPs and to the basic plans of the RVDP. When the results of this study are reflected on the policies, the LP will effectively carry out the functions of formation and management of continued scenery preservation of rural villages.

• Industrial Engineering and Management Systems
• /
• 제11권4호
• /
• pp.310-330
• /
• 2012

Scheduling is an important tool for a manufacturing system, where it can have a major impact on the productivity of a production process. In manufacturing systems, the purpose of scheduling is to minimize the production time and costs, by assigning a production facility when to make, with which staff, and on which equipment. Production scheduling aims to maximize the efficiency of the operation and reduce the costs. In order to find an optimal solution to manufacturing scheduling problems, it attempts to solve complex combinatorial optimization problems. Unfortunately, most of them fall into the class of NP-hard combinatorial problems. Genetic algorithm (GA) is one of the generic population-based metaheuristic optimization algorithms and the best one for finding a satisfactory solution in an acceptable time for the NP-hard scheduling problems. GA is the most popular type of evolutionary algorithm. In this survey paper, we address firstly multiobjective hybrid GA combined with adaptive fuzzy logic controller which gives fitness assignment mechanism and performance measures for solving multiple objective optimization problems, and four crucial issues in the manufacturing scheduling including a mathematical model, GA-based solution method and case study in flexible job-shop scheduling problem (fJSP), automatic guided vehicle (AGV) dispatching models in flexible manufacturing system (FMS) combined with priority-based GA, recent advanced planning and scheduling (APS) models and integrated systems for manufacturing.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
• /
• 제5권9호
• /
• pp.7-16
• /
• 1999

The purpose of this study was to propose and estimate the architectural planning of general hospital in Korea, for the aged society in the near future. Average life expectancy of Koreans has been lengthened and the percentage of the aged populations is expected to be increased sharply. Therefore, the social problems for the aged occur in various levels, especially in healthcare facilities and medical system due to the weak health conditions of the aged. These problems will become more serious in the near future. However, the architectural planning of general hospital in Korea has not been prepared for the aged society yet. The results of this study were as follows the ward of general hospital should be divided into acute and geriatric wards because of the characteristics of geriatric diseases.