With the evolution of the application of web technology, agent-based manufacturing systems can be both easily implemented and become a potential approach for modern manufacturing enterprises. In this paper, we present problems and models required for the development of web-based distributed manufacturing control systems. The specific objectives are: (1) to propose an appropriate architecture for a web-based distributed manufacturing control system, (2) to define the specification of a web-based cell controller, (3) to design the co-operative mechanisms, contract net protocol, for better system performance, (4) to upgrade the communication capability of existing CNC machines from RS232C to TCP/IP (Transmission Control Protocol/Internet Protocol) based on Ethernet.To demonstrate the proposed development, prototype software based on ASP and VB programming was designed and implemented. As a result, not only is a great amount of time saved in the development of web-based manufacturing control software, but this development can also enhance the competitive capability of companies trying to operate on a flexible basis.
In the paper, a computer-supported model of the innovation design is presented, which is based on the synergy of modular function deployment (MFD), theory of inventive problem solving (TIPS, TRIZ) and case-based reasoning (CBR) to assist designer to engage in modularized product design. This approach involves gathering all relevant information about the customer voice and applying this information to drive the design of products or modules. So, it is starting from the MFD-Diagrams and continuing through the technical contradictions matrix in TRIZ during the conceptual design stage of new modules or parts. A CBR system is then adopted to quickly search some similar design cases for the references of inventive problem solving. Last, two reasoning mechanism are fabricated based on Protege and JESS expert tool, and a particular case of bicycle part design is studied through the use of knowledge-based prototype system to prove the effectiveness/efficiency of the computer-supported model. However, it will greatly enhance the competitive capability of companies trying to rapid development of the innovation design.
Automatic shop floor control system in distributed computing context is one of the most important links in Computer Integrated Manufacturing (or CIM) system. For most agent-based manufacturing control systems, a real-time product data available mechanism is not considered. In this paper, an integrated approach of RFID technology and multi-agent system of shot-floor control is presented. The proposed framework uses RFID for tracking products in the system and also for attaching product manufacturing information. This shift from off-line planning systems to on-line control systems will facilitate implementations of real-time scheduling requirement in autonomous manufacturing environment.
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