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Wind Tunnel Control(WEBWIND)
By:Adam Green
Advisor:Dr. Aleksander Malinowski
Dr. Scott Post
Bradley University
Department of Electrical Engineering (2011)
3
Presentation Outline
• Abstract
• Completed Last Semester
• Completed Since January
• Checklist
• Equipment Update
• Timeline Update
Bradley University
Department of Electrical Engineering (2011)
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The Wind Tunnel
• Wind Chamber
• Actuators
• Control Switches– ON/OFF– Wind Speed Damper
• Sensors
Bradley University
Department of Electrical Engineering (2011)
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Abstract
Bradley University
Department of Electrical Engineering (2011)
• Networked access to controls and measurements.
• Simplify the wind tunnel control.
• Simplify measurements.
• Use LabVIEW on local and remote PC.
• Use DAQ for analog and digital I/O.
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High-Level Block Diagram
Bradley University
Department of Electrical Engineering (2011)
7
Presentation Outline
• Abstract
• Completed Last Semester
• Completed Since January
• Checklist
• Equipment Update
• Timeline Update
Bradley University
Department of Electrical Engineering (2011)
8Bradley University
Department of Electrical Engineering (2011)
9
Hardware-side Interfacing Design
• ON/OFF Control
• Damper Control
Bradley University
Department of Electrical Engineering (2011)
Hardware-side Design
• Universal motor analysis by Ben and Mike.
• Digital signals to control damper and blower.
• Control untested.
• Untested on wind tunnel.
Bradley University
Department of Electrical Engineering (2011)
11
Presentation Outline
• Abstract
• Completed Last Semester
• Completed Since January
• Checklist
• Equipment Update
• Timeline Update
Bradley University
Department of Electrical Engineering (2011)
12
LabVIEW - Server
Bradley University
Department of Electrical Engineering (2011)
• Server/Client implemented using TCP protocol
• Server connected to microcontroller, sensors, and hardware using DAQ.– Code complete, need DAQ to test
I/O.• All backbone code complete and
thoroughly tested.– Timing limitations with I/O? Matched
TCP calls?
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Server Limitations
Bradley University
Department of Electrical Engineering (2011)
• Single User, Limited Security• Move Called– Status only, won’t lock out
users
• User Command Processing– Speed?– Completely untested.
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Labview Server Code
Bradley University
Department of Electrical Engineering (2011)
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LabVIEW - Client
Bradley University
Department of Electrical Engineering (2011)
• Actuators, movement call, and commands implemented.
• Data received from server.• Client can terminate connection without
interrupting the server.• Distribution?
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Labview Client Code
Bradley University
Department of Electrical Engineering (2011)
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Presentation Outline
• Abstract
• Completed Last Semester
• Completed Since January
• Checklist
• Equipment Update
• Timeline Update
Bradley University
Department of Electrical Engineering (2011)
18
Remaining Checklist
• Physical implementation of actuator controller
• Interfacing DAQ to wind tunnel
• Hardware control of damper and blowers
• Power supply
Bradley University
Department of Electrical Engineering (2011)
19
Presentation Outline
• Abstract
• Completed Last Semester
• Completed Since January
• Checklist
• Equipment Update
• Timeline Update
Bradley University
Department of Electrical Engineering (2011)
20
Equipment Update
• Local PC with LabVIEW software• Not received as of 2/21/11.
• 2 DC controlled, AC Solid State Relays (Omron G3NA-225B)
• 1 DC controller, DC Solid State Relay (Omron G3NA-D210B)
• 1 Double Pole, Double Throw AC Relay (Dayton 1EGX1)• National Instruments Analog and Digital Data Aquistion
Device (PCI MIO-16E-4) • Wind Tunnel System and Peripheral Components• Silicon Labs 8051F120 Microcontroller
• 1 destroyed, currently using a spare.
Bradley University
Department of Electrical Engineering (2011)
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Schedule - Revised
Bradley University
Department of Electrical Engineering (2011)
22Bradley University
Department of Electrical Engineering (2011)
