Yongjun Zheng

1
Mobile Collaborative Working Environment For
Product Design

• Yongjun Zheng

2
Outline

• 1.0 Aims of the proposed research
• 2.0 Background
• 3.0 MCWE Design
• 4.0 Parametric Product Design
• 5.0 SolidWorks Architecture
• 6.0 Research Challenges

3
1.0 Aims of the Proposed Research

• To develop a mobile collaborative working
  environment (MCWE) for geographically dispersed
  team members to conduct collaborative design
  tasks within the total product design process
  including design specification formulation,
  conceptual design, detail design and manufacture.
• To implement collaborative CAD over the
  Internet across different clients, by utilising
  the MCWE

4
Outline

• 1.0 Aims of the proposed research
• 2.0 Background
• 3.0 MCWE Design
• 4.0 Parametric Product Design
• 5.0 SolidWorks Architecture
• 6.0 Research Challenges

5
2.0 Background

• Development of the CSCW (Computer Supported
  Cooperative Work )
• Development of the Web Technology
• Development of the Mobile Technology
• Requirement of MCWE (Mobile Collaborative Working
  Environment)

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Mobile Agents

• Navigation of mobile agents
• Transportation and persistency of agents
• Naming and paging of mobile agents
• Interoperability of mobile agents
• Mobile agent platforms provide mobile object
  environment
• IBM Aglet
• Voyager

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Advantage of the MA technology

• personal assistance of information access and
  utilization
• enhance efficiency of communication and
  interaction
• construction of virtual agent-based environment
• A software that has autonomous, personalized,
  adaptive,
• mobile, communicative abilities
• A kind of middleware between information demand
  (client)
• and information supply (server)
• A paradigm shift of information utilization from
  direct
• manipulation to indirect access and delegation

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Mobile agent standards

• MAF(Mobile Agent Facility) MASIF are researched
  by OMG (Object Management Group) since 1988?
• MASIF focus on
• 1) Agent Management
• 2) Agent Transportation
• 3) Agent and Agent System Names

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Agent Standards FIPA

• FIPA (Foundation for Intelligent Physical Agents)

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Contribution in the research

• a front-end node supports starting and
  controlling agents and their MCWE components
• the home node is the node where an agent was
  originally started and where agent-related state
  is maintained
• a remote note is one of the nodes where an agent
  currently executes.

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Contribution in the research

• Agent system are implemented in the mobile
  device, retrieve the CAD data, run the CAD
  embedded application, received the result from
  the server while the mobile agent get the answer
  from the server.
• Agent Oriented system, all the task will be
  interpret by the server, the task will be divided
  into different agents, the agent management will
  control the different agent, get the result, save
  the data into database, waiting for the next
  connection if necessary, which will save time,
  especially the user need the same process again.
• Write a full C class library for the SolidWork,
  which use the COM technology, provide the public
  interface, which is easy to be referenced, save
  the time. The way to secondly development of the
  CAD application are most powerful and efficient.

12
Outline

• 1.0 Aims of the proposed research
• 2.0 Background
• 3.0 MCWE Design
• 4.0 Parametric Product Design
• 5.0 SolidWorks Architecture
• 6.0 Research Challenges

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3.0 MCWE Design
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MCWE Simple Architecture
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Interoperability

• Agent Management. create an agent, suspend it,
  resume, and terminate.
• Agent Transfer. freely move among agent systems
  of different types, resulting in a common
  infrastructure, and a larger base of available
  system agents can visit.
• Agent and Agent System Names. Standardized syntax
  and semantics of agent
• Agent System Type and Location Syntax. The agent
  transfer cannot happen unless the agent system
  type can support the agent. The location syntax
  is standardized so that the agent systems can
  locate each other.

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MCWE Architecture
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Simple Architecture
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MCWE Mapping FIPA
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MCWE Working Module
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Algorithms for agent transfer

• a) Initiating agent transfer (sender
  side)
• Suspend the agent (halt the agents thread).
• Identify transferable agents state.
• Serialize the Agent class and state.
• Encode it for the chosen transport
• Provide authentication info. to the server.
• Transfer the agent.

• b) Receiving an agent
• (receiver side).
• Authenticate client.
• Decode the agent.
• Deserialize the Agent class
• and state.
• Instantiate the agent.
• Restore the agent state.
• Resume agent execution.

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PERFORMANCE MODEL

• Using mobile agent technology, an agent may
  transfer it-self over the wireless link instead
  of using traditional message passing from a
  mobile device. While this is an obvious
  advantage.
• User interface
• Message Passing In the message passing case, an
  agent remains stationary and uses message
  passing.
• Agent Migration In the agent migration case, the
  agent first moves itself to the vicinity of the
  communication peer.

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MA Server Diagram
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Mobile Agent Class Diagram
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Work Flow Diagram
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Outline

• 1.0 Aims of the proposed research
• 2.0 Background
• 3.0 MCWE Design
• 4.0 Parametric Product Design
• 5.0 SolidWorks Architecture
• 6.0 Research Challenges

26
4.0 Parametric Product Design
As the recent development of the CAD technology,
parametric design are more popular in commercial
CAD packages such as Pro/E, I-DEAS, UG and Solid
Works.
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Parametric Product Design
Show the Image in the mobile device, user can
view the picture
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Outline

• 1.0 Aims of the proposed research
• 2.0 Background
• 3.0 MCWE Design
• 4.0 Parametric Product Design
• 5.0 SolidWorks Architecture
• 6.0 Research Challenges

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5.0 SolidWorks Architure
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SolidWorks Objects
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Calling Process
/ / SldWorks. h include " swconst. h" class
CSldWorks publicISldWorks m-pSldWorksIModelDoc
mpModelDoc HRESULT Star(t ) HRESULT NewPar(t
IPartDoc pPartDoc) HRESULT InsertSketch() HRES
ULT Rectangle( double x1,double
y1,double x2,double y2) HRESULT Extrusion(double
d1,bool sd,bool flip,long t1,long t2,double
d2,bool Draft1,bool DraftDir1, double
DraftAngle1,bool Draft2e,bool DraftDir2,double Dra
ftAngle2) HRESULT Cu(t double d1,bool sd,bool
flip,bool dir, long t1,long t2,double
d2) HRESULT SelectByID(BSTR selID,BSTR
selParams, double x,double y,double z) / /
SldWorks. cpp include " stdafx. h" include "
SldWorks. h" include " amapp. h" include "
swconst. h" include " sldworks-i. c" HRESULT
CSldWorksStar(t )/ / ??SolidWorks HRESULT hr
CoCreateInstance(CLSID-SldWorks, NULL,CLSCTX-LOCAL
-SERVER,IID-ISldWorks, (void)(m-pSldWorks))
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SW VC Class Diagram
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Calling Process
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Calling Process
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Case Study
An MCWE system will be developed for
collaborative design and manufacture of Kenics,
the Products of Chemineer Inc, and an
International manufacture of mixture machines for
chemical industry.
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Outline

• 1.0 Aims of the proposed research
• 2.0 Background
• 3.0 MCWE Design
• 4.0 Parametric Product Design
• 5.0 SolidWorks Architecture
• 6.0 Research Challenges

37
6.0 Changelings in Research

• Agent oriented System
• Communication
• Agent
• Web/Grid
• Synchronize
• Test
• Safety

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References

• FIPA http//www.fipa.org
• XML http//www.w3c.org/XML
• OMG http//www.omg.org
• KQML http//www.cs.umbc.edu/kqml/

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END

• Thank you very much for your attention.
• Yongjun.Zheng_at_ntu.ac.uk