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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)
Presentation Outline
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Abstract
Completed Last Semester
Completed Since January
Checklist
Equipment Update
Timeline Update
Bradley University
Department of Electrical Engineering (2011)
3
The Wind Tunnel
• Wind Chamber
• Actuators
• Control Switches
– ON/OFF
– Wind Speed Damper
• Sensors
Bradley University
Department of Electrical Engineering (2011)
4
Abstract
• 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.
Bradley University
Department of Electrical Engineering (2011)
5
High-Level Block Diagram
Bradley University
Department of Electrical Engineering (2011)
6
Presentation Outline
•
•
•
•
•
•
Abstract
Completed Last Semester
Completed Since January
Checklist
Equipment Update
Timeline Update
Bradley University
Department of Electrical Engineering (2011)
7
Bradley University
Department of Electrical Engineering (2011)
8
Hardware-side Interfacing Design
• ON/OFF Control
• Damper Control
Bradley University
Department of Electrical Engineering (2011)
9
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)
Presentation Outline
•
•
•
•
•
•
Abstract
Completed Last Semester
Completed Since January
Checklist
Equipment Update
Timeline Update
Bradley University
Department of Electrical Engineering (2011)
11
LabVIEW - Server
• 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?
Bradley University
Department of Electrical Engineering (2011)
12
Server Limitations
• Single User, Limited Security
• Move Called
– Status only, won’t lock out
users
• User Command Processing
– Speed?
– Completely untested.
Bradley University
Department of Electrical Engineering (2011)
13
Labview Server Code
Bradley University
Department of Electrical Engineering (2011)
14
LabVIEW - Client
• Actuators, movement call, and commands
implemented.
• Data received from server.
• Client can terminate connection without
interrupting the server.
• Distribution?
Bradley University
Department of Electrical Engineering (2011)
15
Labview Client Code
Bradley University
Department of Electrical Engineering (2011)
16
Presentation Outline
•
•
•
•
•
•
Abstract
Completed Last Semester
Completed Since January
Checklist
Equipment Update
Timeline Update
Bradley University
Department of Electrical Engineering (2011)
17
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)
18
Presentation Outline
•
•
•
•
•
•
Abstract
Completed Last Semester
Completed Since January
Checklist
Equipment Update
Timeline Update
Bradley University
Department of Electrical Engineering (2011)
19
Equipment Update
• Local PC with LabVIEW software
• Not received as of 2/21/11.
• 2 DC controlled, AC Solid State Relays (Omron G3NA225B)
• 1 DC controller, DC Solid State Relay (Omron G3NAD210B)
• 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)
20
Schedule - Revised
Bradley University
Department of Electrical Engineering (2011)
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Bradley University
Department of Electrical Engineering (2011)
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