Research

year 1994 
author Namkyu Park 
Keyword Cooperative-Distributive Control System, Re-Negotiation, Shop Floor Control, On-line Monitoring and Control, Computer Integrated Manufacturing ( CIM ) 
Abstract A computer integrated manufacturing system(CIMS), which requires computer communication, information, and control technology, has characteristics such as sharing of manufacturing facilities, reduced setup time, dynamic event control, and real-time response. In this dissertation, a cooperative-distributive shop floor control system, MODERATO is proposed, and the performance of the proposed system is compared with an existing system. MODERATO system has a control architecture based on contract net models. It supports autonomy and intelligence of a manufacturing system, and system control through information sharing between control elements. To maintain robustness of this architecture, MODERATO system has 3 kinds of agents - order agent, resource agent, and communication forwarding agent. These 3 agents do the functions for real-time data acquisition, on-line monitoring, and control of system deadlock and dynamic situation. Each agent operates through message exchange. Order agent( OA )performs job allocation, dynamic event control, and can respond to interrupts by rush orders. It also passes messages, such as task information and resource selection, to RA and evaluates bids from RA. OA adopts ´maximize throughput´ as a main strategy for job dispatching and ´due data satisfaction´ as an auxiliary. Furthermore, OA can change dispatching control strategy by itself according to the system status. Resource agent(RA) is a decision maker for each resource. Each RA plays the role of task evaluation and sends a bid message. A bid is selected and awarded from the negotiation between OA and RA. Also presented is an architecture for re-negotiation among RAs using information on resource congestion, whereby resources already assigned can be reallocated. Communication forwarding agent(CFA) is a sort of information buffer that can help information exchange between OA and RA. CFA always maintains most current information on shop floor status. By modelling a flexible manufacturing system using the Petri net, and by incorporating information in CFA into this model, we suggest a methodology and algorithms to forecast, prevent, avoid and resolve system deadlocks. MODERATO system is based on a concept for client/server computing, and has a 2-layered architecture that hide decision making from information processing. All message between OA and RA is sent through CFA. In terms of information handling, OA and RA, as clients, are dedicated to decision making and are free from message exchange. And CFA is wholly dedicated to message handling. In this way, the control logic of an FMS can be made more transparent. To investigate the performance of the MODERATO system, we conducted simulation experiments using SNU-FMS that is installed and operated at ASRI( automation and systems research institute) in SNU( Seoul National University ). Experiment results show that the MODERATO system outperforms the existing system being compared. Especially the higher the congestion level of shop floor, the better the performance of the MODERATO system. 
c PhD 

Downlaod :

번호 c year 제목 author
61 MS  1993  A Study on Effects of Order Release Policies to Performance of Manufacturing Systems Choonghwan Ahn 
60 MS  1993  A Study on the FMS Shop Floor Control by Bidding among Autonomous Objects Jangsuk Moon 
59 MS  1993  A Supervisory Control Approach to Rapid Implementation of Low-Level Control Software for FMC [1] Sangkyun Kim 
58 MS  1994  A Finitely Recursive Processes Approach to Modeling and Control of an FMC Jaeheuk Choi 
57 MS  1996  A Study on the Generation and DB Construction of Modular BOM [1] Yonggu Ji 
56 MS  1997  A Scheduling Algorithm Considering Subcontractor and Machine Setup Cost in MRP Environment [1] Kichang Lee 
55 MS  1997  A Study on FMS Scheduling Problems Based on Priority Functions Generated by Genetic Programming ChangUk Kim 
54 MS  1997  A New Approach to Master Production Scheduling in the MRP environment [1] Sangdo Choi 
53 MS  1998  A study on an efficient real-time deadlock-free control algorithm by using graph-theoretic approach [27] Jungwoon Yoo 
52 MS  1998  A Study on UML representation of CIM-OSA and availability of analysis and design pattern in CIM-OSA [1] Seungoh Han 
51 MS  1998  Design of Integrated BOM Management System supporting Multiple Views Keumseok Kang 
50 MS  1999  An Evaluation of Workload Limited Order Release Strategies considering Planning Stage in a Jop Shop Byeongdae Choi 
49 MS  1999  A Study on the Development of Event-driven MRP Components Considering Capacity Constraints [1] Seunghyun Yoon 
48 MS  1999  A Study on the Implementation of the Speech Recognition System for the Real-Time Decision Support of Manufacturing Cells [18] Eoksu Sim 
47 MS  2000  A Study on Work Measurement Using Image Processing [8]
46 MS  2000  Design of a Hybrid System in Integrating Kanban with MRP [2] Taeyoung Song 
45 MS  2000  Job Shop Scheduling for Minimizing the Sum of Earliness and Tardiness Dongsu Park 
44 MS  2000  A Study on Integrated Production Planning of Distributed Manufacturing Systems on Supply Chain Dosung Go 
43 MS  2001  A Study of Decision Support for the implementation of Cellular Manufacturing Systems. [1] Muynghee Byun 
42 MS  2001  A Study on Components Development for Production Management Daiki Min 
41 MS  2002  Design and Implementation of Model Management System for Supply Chain Planning [1] Youngcheol Yang 
40 MS  2002  A combined DEA and BSC methodology for evaluating organization efficiency [1] Bumsoo Kim 
39 MS  2003  Design of a BOF Blowing Control Model Using Artificail Intelligence Jungjoon Park 
38 MS  2003  Production Planning and Distribution Planning using Demand based mixed Genetic Algorithm in a Supply Chain Jung Im 
37 MS  2004  A Study on Extended Workflow Model Considering Activity Based Costing [27] Moontae Hwang 
36 MS  2004  A Study on Reverse Supply Chain of End of Life Vehicle for the Enhanced Recycle Performance [6] Miyeon Ryu 
35 MS  2004  A Study on business process model for extended and integrated supply chain planning : Focused on negotiation [5] Yuncheol Kang 
34 MS  2004  A Design on Cost-Estimation Support System for Injection Mold Using AI Method [12] Gunhee Kim 
33 MS  2004  A study on due-date assignment method in wafer fabrication facility producing multiple product types [3] Jaewon Park 
32 MS  2005  A Study on RFID application in Reverse Supply Chain [3] Dongjoon Lim 
31 MS  2005  Development of Reference Model and Strategic Road Map for the Implementation of a Reverse Supply Chain [183] Chihoon Lim 
30 MS  2005  A Study on Developing of Position collecting Vision system Using Marker [1] Jiyoon Park 
29 MS  2005  A Study on Product Development Methodology in Reverse Supply Chain [77] Joon Kim 
28 MS  2006  A Study on the Application of Group Technology for Naval Ship Design And Manufacturing: Relating to Platform Family Architecture [17] Gwangjae Park 
27 MS  2006  A Framework for the ubiquitous MES using RFID and Web services Technology [25] Manchul Han 
26 MS  2006  A Study on the Assessment Method of Installation and Operation Cost in a Reverse Supply Chain [2] file Hyunjong Jeong 
25 MS  2007  A Study on the Valuation of a Supply Chain Considering Management Efficiency and Environmental Effect [53] Jiyoun Kim 
24 MS  2008  An Study abou the Application and Effect of RFID Technology in the Activity Collecting Information to Improvement of Manufacturing Process [10] Sungho Jo 
23 MS  2009  A Fuzzy-AHP based Decision making Model for ground operations [37] Youngkyun Lee 
22 MS  2009  A Study on Integrated Risk Management in Supply Chain - Focusing on High-tech Electronic Industry [52] file Kanghyun Kim 
21 MS  2009  A Study on Mine Artillery Hit Using Simulation [3] Youngho Chung 
20 MS  2009  A Study on the Economic Feasibility of Automated Identification Technology on the ELV Management Process [25] file Kiheon Nam 
19 MS  2007  A Study on Project Risk Management based on Earned Value Management [25] file Hyunil Noh 
18 MS  2007  A Study on BOM for Enhancing Efficiency of Reverse Supply Chain [14] Jinseon Yoo 
17 MS  2007  A Study on Utility Value and Fairness of Information Sharing in Supply Chain [18] file Myongran Oh 
16 MS  2007  A Simulation Study on the Impact of RFID Technology on the Supply Chain Counting Process [13] file Jangwon Cho 
15 MS  2008  A study on supplier's performance measurements for a supply chain on a new product environment [1] Jungsub Lee 
14 MS  2008  Integration of RFID and Web Service Technology in Manufacturing Systems [20] file Gunnam Ong 
13 MS  2011  A Study on RMC Scheduling using Simulation [19] Jeongho Park 
12 MS  2011  Intelligent service during middle-of-life phase of a product: Illustration of framework and its evaluation model [3] Soyeon Yoon