Webbased Distributed Flexible Manufacturing System FMS Monitoring and Control

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Web-based Distributed Flexible Manufacturing
System (FMS) Monitoring and Control    
Student Wei Liu Instructor Dr. Chang Apr. 23,
2003
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Agenda

• Introduction
• Research Objective
• Approach
• Conclusions

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Introduction

• A flexible manufacturing system (FMS) is one
  manufacturing machine or multiple machines which
  are integrated by an automated material handling
  system, whose operation is managed by a
  computerized control system.
• Next-generation FMS should be agile and flexible.
• Advancements in Internet technology have made
  possible new and innovative methods for the
  remote connectivity and control of FMSs.

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A Typical FMS System
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Research Objective
Develop an Internet-based monitoring and control
system for flexible manufacturing systems (FMS)
that aims to address the issues such as open
architecture design and integration, socket
connection and three-level heterogeneous
client/server communication and control.
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Open Architecture Criteria

• Extendibility
• Interchangeability
• Scalability
• Portability
• Interoperability
• Consistency

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Technologies and Methodologies for the Design of
Open Architecture Systems

• Client/Server Model and Heterogeneity Fusion
• Object-Oriented Method and Component Model
• Distributed Dynamic Integration and Function
  Reorganization

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Three-level Heterogeneous Client/Server Framework
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Component Model-based Interfaces
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Monitoring Control Function Interface
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Internet Connectivity Communication Interface
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Connectivity Scheme

• Connectivity Scheme for the FMS and the Web
  Server Communication Control Serial
  communication (RS232C)
• Connectivity Scheme for the Web Server and the
  client (TCP)-based socket layer connection

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The Authentication Process
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Configuration of the Prototype System

• 1. The Central CIM Computer
• Application Modules RS232 communication, FMS
  monitoring control
• Development Platform Borland C, ACL
• System Platform DOS, ACL shell
• 2. The Web Server
• Application Modules RS232 communication (server
  side module), Security management (server side
  module), Security control (client server sides
  modules), Socket control (client server sides
  modules)
• Development Platform Visual C, Visual Basic,
  Cosmo Code Java Platform
• System Platform Windows NT, Internet Information
  Server

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A Snapshot of the Prototype System in Run
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Conclusions

• The open architecture design makes it easier for
  application systems to be extended and scaled.
• The client/server model with heterogeneity fusion
  is an effect approach by which designers can
  focus on the picture of the entire system frame
  and not just the individual components.
• The three-level heterogeneous framework, with the
  function control interface and the Internet
  connectivity and communication interface,
  considerably improves the implementation
  performance of the system on several major
  aspects security, speed, efficiency, and
  reliability.

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Questions?