• Title/Summary/Keyword: Distributed Process Planning

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Combination of Feature-Based Extraction Process and Manufacturing Resource for Distributed Process Planning (분산공정계획을 위한 특징형상 기반 추출 공정 및 가공자원 조합)

  • Oh, Ick Soo
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.37 no.2
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    • pp.141-151
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    • 2013
  • Process planning can be defined as determining detailed methods by which parts can be manufactured from the initial to the finished stage. Process planning starts with determining the manufacturing process based on the geometric shape of the part and the machines and tools required for performing this process. Distributed process planning enables production planning to be performed easily by combining the extracted process and various manufacturing resources such as operations and tools. This study proposes an algorithm to determine the process for a feature-based model and to combine manufacturing resources for the process and implements a distributed process planning system.

A Virtual Manufacturing System the Integration of Process Planning and Scheduling (공정계획 및 일정계획 통합을 위한 가상 생산 시스템)

  • Park, Ji-Hyung;Yum, Ki-Won
    • Journal of the Korean Society for Precision Engineering
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    • v.16 no.1 s.94
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    • pp.161-166
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    • 1999
  • Virtual Manufacturing System(VMS) is a computer model that represents the precise and whole structure of manufacturing systems and simulates their physical and logical behavior in operation. In this paper, a real time simulation for the virtual factory is proposed to integrate a process planning with scheduling under distributed environments. In order to communicate the information under distributed environments, we use a server/client concept using socket program and internet.

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Integrated Process Planning and Scheduling for Machining Operation in Shipbuilding (선각 내업 가공작업의 공정계획과 일정계획의 통합화 방안 연구)

  • Cho, Kyu-Kab;Oh, Jung-Soo;Kim, Young-Goo
    • Journal of the Korean Society for Precision Engineering
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    • v.14 no.10
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    • pp.75-84
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    • 1997
  • This paper describes the development of an integrating method for process planning and scheduling activities for block assembly in shipbuilding. A block is composed of several steel plates and steel sections with the predetermined shapes according to the ship design. The parts which constitute the block are manufac- tured by cutting and/or bending operations, which are termed as machining operation in this paper. The machining operation is the first process for block assembly which influences the remaining block assembly processes. Thus process planning and scheduling for machining operation to manufacture parts for block are very important to meet the assembly schedule in the shipyard. An integrating method for process plan- ning and scheduling is developed by introducing the concept of distributed process planning and scheduling composed of initial planning, alternative planning and final planning stages. In initial planning stage, nesting parts information and machining emthods are generated for each steel plate. In alternative plan- ning stage, machine groups are selected and workcenter dispatching information is generated. In final planning stage, cutting sequences are determined. The integrated system is tested by case study. The result shows that the integrated system is more efficient than existing manual planning system.

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공정계획 및 일정계획 통합을 위한 가상 생산 시스템

  • 박지형;염기원
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.10a
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    • pp.885-888
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    • 1995
  • Virtual Manufacturing System(VMS) is a computer model that represents the precise and whole structure of manufacturing system and simulates their physical and logical behavior in operation. In this paper, a real time simulation for the virtual factory is proposed to integrate a process planning with scheduling under distributed environments. In order to communicate the information under distributed environment, weuse a sever/client concept and socket program. the VMS is implemented on the internet environment.

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Application of Distributed Objects for CAPP (공정계획을 위한 분산객체의 응용)

  • 김준국;이홍희
    • Journal of the Korea Safety Management & Science
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    • v.4 no.2
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    • pp.155-168
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    • 2002
  • As the market and the organizations of an enterprise expand globally, the rapid and accurate communication gets more important for product manufacturing. The manufacturing information flow among the designers, the process planners and the shop floors is characterized and modelled. Its methods are constructed using distributed objects. Their introduction to the network-based CAPP system offers speed and safety for the system and makes the reconstruction and distribution of the application programs easy. The manufacturing processes are generated based on the feature information of a designed part, then the manufacturing resources are selected using the process planning logic which is implemented by distributed objects. The databases and distributed objects are integrated under the recent internet environments. The developed system makes it possible to manipulate and to transfer the process planning and manufacturing data everywhere in the world.

Active Distribution Network Expansion Planning Considering Distributed Generation Integration and Network Reconfiguration

  • Xing, Haijun;Hong, Shaoyun;Sun, Xin
    • Journal of Electrical Engineering and Technology
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    • v.13 no.2
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    • pp.540-549
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    • 2018
  • This paper proposes the method of active distribution network expansion planning considering distributed generation integration and distribution network reconfiguration. The distribution network reconfiguration is taken as the expansion planning alternative with zero investment cost of the branches. During the process of the reconfiguration in expansion planning, all the branches are taken as the alternative branches. The objective is to minimize the total costs of the distribution network in the planning period. The expansion alternatives such as active management, new lines, new substations, substation expansion and Distributed Generation (DG) installation are considered. Distribution network reconfiguration is a complex mixed-integer nonlinear programming problem, with integration of DGs and active managements, the active distribution network expansion planning considering distribution network reconfiguration becomes much more complex. This paper converts the dual-level expansion model to Second-Order Cone Programming (SOCP) model, which can be solved with commercial solver GUROBI. The proposed model and method are tested on the modified IEEE 33-bus system and Portugal 54-bus system.

Process Control Using Fieldbus (필드버스를 이용한 공정제어)

  • 김영효;한헌수
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2003.10a
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    • pp.113-117
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    • 2003
  • In the industrial field nowadays the information that needs to be handled arc increasing and requires faster speed in contrast with PLC(Programmable Logic Controller) or DCS(Distributed Control System) based control systems these days. The work environment these days are mostly based on PC, so the control systems are wanted in PC. At Fieldbus used automated systems performing distributed process control by PC performs and combines into one system in order to maximize the increase of productivity, lower the expense, planning constructing and maintaining the reliance of automation. These latest automation systems unites process, makes distributed control process able, and can control and supervise at remote PC.

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EFFICIENT OPEN SOURCE DISTRIBUTED ERP SYSTEM FOR LARGE SCALE ENTERPRISE

  • ELMASSRY, MOHAMED;AL-AHAMADI, SAAD
    • International Journal of Computer Science & Network Security
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    • v.21 no.12
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    • pp.280-292
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    • 2021
  • Enterprise Resource Planning (ERP) is a software that manages and automate the internal processes of an organization. Process speed and quality can be increased, and cost reduced by process automation. Odoo is an open source ERP platform including more than 15000 apps. ERP systems such as Odoo are all-in-one management systems. Odoo can be suitable for small and medium organizations, but duo to efficiency limitations, Odoo is not suitable for the large ones. Furthermore, Odoo can be implemented on both local or public servers in which each has some advantages and disadvantages such as; the speed of internet, synced data or anywhere access. In many cases, there is a persistent need to have more than one synchronized Odoo instance in several physical places. We modified Odoo to support this kind of requirements and improve its efficiency by replacing its standard database with a distributed one, namely CockroachDB.

A Study on Collaboration Strategy Planning of Semiconductor Industry (반도체 산업의 협업전략계획에 관한 연구)

  • Cho Nam Wook;Kim Tae Sung
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.28 no.2
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    • pp.139-145
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    • 2005
  • As today's business environment becomes more globalized and distributed, the importance of collaboration is rapidly increasing. This Paper Presents a systematic approach to collaboration strategy planning. The framework suggests that a Collaborative Process Map needs to be identified first. Then, Collaboration Maturity of an enterprise is evaluated. Based on the Collaborative Process Map and Collaboration Maturity Evaluation, Collaboration Execution Plans are systematically established. A case study shows that the proposed framework can successfully be applied to the strategic collaboration planning of semiconductor industry

Effect of Age Cohort on Life Cycle Financial Planning

  • FOLK, Jee Yoong
    • East Asian Journal of Business Economics (EAJBE)
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    • v.2 no.4
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    • pp.26-47
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    • 2014
  • The paper examined effect of age cohort on life cycle financial planning. A total of 990 questionnaires were distributed with a 55.2% return rate. Seven hypotheses were analysed using hierarchical and ordinary regression analysis. The results revealed that age cohort variables made significant contribution to life cycle financial planning as well as personal orientation towards retirement planning, particularly the younger age cohort. Age cohorts do affect personal orientation towards retirement planning with the confidence level making a significant impact. Current financial resources do have a strong positive impact on consumption for all age cohorts. On the other hand, no significant effect was found between age cohorts and current financial resources but older age cohorts were relatively more significant predictors. The implication was that not only should their individual perceptions of financial planning become an increasingly important part of people's long-term commitment throughout their life-cycle, it must also assume the role as a self-directed life-long learning process, in view of the ever-changing and complicated financial environment.