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Study On Distributional Collaborative Design System Based On P2P

Posted on:2009-03-27Degree:DoctorType:Dissertation
Country:ChinaCandidate:D Y WangFull Text:PDF
GTID:1118360245488873Subject:Power system and its automation
Abstract/Summary:PDF Full Text Request
Due to its complexity, the modern product's design is a production for applying multiple disciplines intelligence. Global market competition requires enterprises speeding product development, and so shorting the lead-time in the unpredictable and rapidly changeable competition environment. With today's rapid development of information technology, the key unit for the success product design is how to effectively integrate the multiple disciplines knowledge under the assistant of computer technology, and then provide products with higher quality, much reasonable price, better sale service, and more environment protection in shorter time to market. Thus enterprise could enhance its key competitiveness. The collaborative supported methods and techniques base on P2P technology are studied in this thesis, the investigations mainly focus on the following aspects:Firstly, this thesis presents a comprehensive study on collaborative design in a distributed environment such as its connotation, working pattern, and functional requrements, and etc. On this foundation, thesis proposes collaborative design system architecture based on the P2P technology. Finally, thesis has carried on the analysis to the key technologies which the collaborative design system needs to solve.The architecture is key point of the collaborative design research. Although at present existing distributional structure and web structure may realize information sharing, but cannot completely satisfy knowledge sharing and intellectualized request. The P2P construction conforms to the needs of intelligent design and distributional and so on, but its construction method, design mechanism, manifestation and realization method still remaining insufficiency. Aimed at collaborative design lacks theory instruction of system construction, open, intelligence and so on, this thesis proposes method and flow of collaborative design system exploitation based on the P2P technology. At the same time thesis has established an open and intelligence collaborative design frame based on P2P.Collaborative design system based on the P2P technology provide sharing design environment where the multi-disciplinary expert's is able to "hypothesized same place" work. And the work flow technology is one key technology in collaborative design system. This thesis analyzed the demands of work flow management system and the traditional work flow model in product development of collaborative design system, and then proposed one kind of completely distributional work flow management system architecture based on coordination development environment.Comparing with the traditional model of design process, the model of distributional collaborative design process has its distinctive quality and complexity. Therefore conflict is inevitable question in collaborative design. Embarking from the process modelling question of distributional collaborative design, thesis analyzed the essential method of distributional collaborative design process modeling. And according distributional collaborative design's characteristics, carried on the modelling using the petri net for conflict process, and has established the design conflict management mechanism in the distributional collaborative design system.The complex product collaborative design process also is what multi agents deploy and optimize design entity's parameter and combination relations. In view of task scheduling question in distributional collaborative design system, this thesis proposes the satisfaction optimization union genetic algorithm based on the characteristics of satisfaction optimization and genetic algorithm to solve duty assignment question in distributional collaborative design system. Thesis use its ability of resistance"combination blast" in optimized question to carry on the task scheduling solution, and obtained the most superior or satisfaction task scheduling sequence.Finally, this thesis has confirmed the main research results through examples. The implementation of those research results may enhance the enterprise's competitive ability in complex and changeable competition environment.
Keywords/Search Tags:Computer supports collaborative design, P2P, Process plan, Conflict solution, Work flow management
PDF Full Text Request
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