Webbased Interrogation of a Power Quality Data Acquisition Device

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Web-based Interrogation of a Power QualityData
Acquisition Device

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DESIGN TEAM
Glenn Wilson
Dr. Mark Halpin
Team Advisor
Debugger Web Page Software Research Design
Jason Koberger True RMS meter Research
Design Hardware Testing Simulation
Melissa Wilson Team Leader True RMS
meter Research, Design Simulation
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Motivation

• Southern Company is our Co-op employer
• Need for improved data acquisition device for
  power applications

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Problem

• Signal Information is not Readily Available
• Remotely
• Nonexistent
• On-site
• Must have computer available

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Design Constraints

• Temperature 0-50 C
• Display Accuracy min 1V increment 1V
• min 0.1A
  increment 0.1A
• Tri-State Status Indicator Good, Marginal
  Unacceptable Signal Levels
• Update Frequency once per ½ second
• Coordination LCD display Port Indicator

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Design Constraints

• Physical Packaging Physical Constraints of
  Existing Device
• Server Windows NT IIS
• Communication Constraints A/D Card or RS232
  Serial Port
• Browser Capability Netscape Microsoft
• Cost 50.00

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Circuit
OUR CIRCUIT LAYOUT WILL GO HERE
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Flow Diagram
Incoming Signal
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Accuracy Results
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Accuracy Results
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Cost Comparison
Maximum Cost 50.00 Prototype Cost 39.59 20
below cost constraint
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Update Frequency Comparison

• Update Frequency Data Will Go Here

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Temperature Constraints

• Temperature Constraint Data Will Go Here

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Web Browser Compatability

• We have verified that the graphics display
  correctly using the latest versions of both
  Netscape Navigator and Microsoft Internet
  Explorer.

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Hardware/Web Status
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Future Work

• Implement 8-1 Mux to allow switching between 8
  ports on the box
• Implement Indicator lights for each port
• Package Hardware
• Perform Real-Time testing on software

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Questions?
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References

• 1 Home Power Quality, http//energyoutlet.co
  m/res/powerqual/index.html, Energy Outlet, Iris
  Communications, Inc, USA, 1996.
• 2 R. C. Dugan, M. F. McGranaghan, and H. W.
  Beaty, Electrical Power Systems Quality,
  McGraw-Hill, New York, New York, USA, p. 1-3,
  1996.
• 3 W. M. Grady and A. H. Noyola, End User and
  Electric Utility Perspectives, Results of Power
  Quality Surveys in the United States, University
  of Texas at Austin, Austin, Texas, USA, 1995.
• 4 C. Peacock, Interfacing the PC,
  http//www.beyondlogic.org/serial/serial3.htm,
  USA, February 28, 2000.

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References

• 5 T. Cambra, Developing a Visual Basic
  Component for IIS/MTS, http//msdn.microsoft.com/
  workshop/server/components/vbmtsiis.asp,
  Microsoft Development Network, USA, June 19,
  1998.
• 6 D. Adair, J. Ball, and M. Pawlan, Trail 2D
  Graphics, http//web2.java.sun.com/
  docs/books/tutorial/2d/index.html, Sun
  Microsystems, USA.
• 7 P. Coleman and M. Halpin, Long Term
  Monitoring, 1999 Southeastern Meter School
  Conference, pp. 2-3, Birmingham, Alabama, USA,
  1999.
• 8 W. Berry, COM Objects and ASP,
  http//msdn.microsoft.com/workshop/server/
  asp/comtutorial.asp, Microsoft Development
  Network, USA, January 12, 1998.

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References

• 9 LCD Products, http//www.eio.com/lcdprodt.h
  tm, Electronics Information Online, USA, August
  23, 2000.
• 10 Newark Electronics http//www.newark.com,
  Newark Electronics, USA, 2000.
• 11 R. Moffat, ElectronicsCooling,
  http//www.electronics-cooling.com/Resources/ECArt
  icles/JAN97/jan97-01.htm, Stanford University,
  Stanford, California, USA, January 1997.
• 12 California Instruments Programmable AC
  Power Sources,
• http//www.ixpres.com/calinst/acpower.htm,
  California Instruments, San Diego, California,
  USA, September 2000.