helicopter data acquisition system l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Helicopter Data Acquisition System PowerPoint Presentation
Download Presentation
Helicopter Data Acquisition System

Loading in 2 Seconds...

play fullscreen
1 / 16

Helicopter Data Acquisition System - PowerPoint PPT Presentation


  • 183 Views
  • Uploaded on

Helicopter Data Acquisition System. ECE 4512 Senior Design I. Team Members. David Paul. Robert McInnis. Dr. Rob King (Advisor). Aaron Hill. Jason Schemmel. Team Responsibilities. Aaron Hill (Power) Circuit board layout, power consumption, and package design. David Paul (Controls)

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Helicopter Data Acquisition System' - keegan


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
helicopter data acquisition system

Helicopter Data Acquisition System

ECE 4512 Senior Design I

team members
Team Members

David Paul

Robert McInnis

Dr. Rob King

(Advisor)

Aaron Hill

Jason Schemmel

team responsibilities
Team Responsibilities
  • Aaron Hill (Power)
    • Circuit board layout, power consumption, and package design
  • David Paul (Controls)
    • Simulink, sensor pak installation, and control circuit design
  • Jason Schemmel and Robert McInnis (Communications)
    • RF design, circuit simulation, and antenna design
purpose
Purpose
  • To implement a helicopter data acquisition system obtaining real-time data from the fuselage and a rotating blade
  • Data from rotating blade can only be obtained accurately with a wireless communications system
motivation
Motivation

Pivot

Hub

Blade

POT

Strain Gauge

Nonlinear stiffness spring

motivation6
Motivation

Computer simulation of baseline case, blade lead angles without Duffing stiffness spring

motivation7
Motivation

Computer simulation of baseline case, blade lead angles with Duffing stiffness spring

project abstract
Project Abstract

Strain Gauge

Position Transducer

Battery Pack Power Source

Wheatstone Bridge

Wheatstone Bridge

Amplifier Signal Conditioner

2:1 Mux

KEY

Power

Signal

EM Signal

Sampler/ A/D Converter

Transmitter

project abstract9
Project Abstract

Receiver

KEY

Power

Signal

EM Signal

Data Enable

Internal Sensor Package

D/A Converter/

Buffer

1:2 Demux

Helicopter House Power

DAQ PCMCIA

Laptop

components

Signal conditioning and amplification

PCMCIA DAQ Card with Dell laptop

Simulink using Matlab

A/D conversions and multiplexing

Signal encoding and decoding

Components
design requirements

Design a control circuit to synchronize

MUX/DEMUX and data converters

± 3.5 mV range must be

amplified and conditioned to a 0-5V

range for proper sampling

Batteries must be selected to

provide 333 mW for a maximum time

of 45 minutes

Frequency selected (100-400 MHz)

for a practically sized antenna

Design Requirements
  • Control Circuit
  • Power
  • Signal Conditioning
  • Transmission Frequency
design requirements12

Serial bit length must be chosen

for a quantized signal with at least a

precision of 2mV increments

Sampling frequency of 100 Hz

for adequate signal accuracy

Transmitting antenna must be

oriented 90° with respect to

receiving antenna

Software calibration is required

prior to session to compensate

for physical inadequacies

Design Requirements
  • Data Transmission
  • Sampling Rate
  • Antenna Polarization
  • Calibration
test requirements

Model Test Stands

Spectrum Analyzer

Constraints

Simulink

Circuit Modeling

Oscilloscope

X

Control Circuit

Power

X

X

X

Transmission Frequencies

X

Data

Transmission

X

X

Sampling Rates

X

X

Calibration

X

X

Antenna Polarization

X

Signal Conditioning

X

X

X

Test Requirements
summary
Summary

Transmitting/

Receiving

System

Sensor Pak

future improvements
Future Improvements
  • Implement transmitting on/off switch
  • Automated helicopter control system
references
References
  • M.L. Deutsch, “Ground Vibrations of Helicopters,” Journal of the Aeronautical Sciences, Vol. 15, No.5, May 1946.
  • R.W. Prouty, Helicopter Aerodynamics, PJS Publishers, Inc., Peoria, IL, 1985.
  • B.P. Lathi, ModernDigital and Analog Communication Systems, Oxford University Press, New York, New York, 1998
  • C.W. Sayer, The Complete RF Technician’s Handbook, PROMPT Publications, Indianapolis, Indiana, 1998
  • United Technologies [Online]. Available: http://www.utc.com/discover/index.htm [2000, September 3].
  • R.W. Prouty, Helicopter Performance, Stablility, and Control, PWS Publishers, Boston, MA, 1986.
  • Title 47, Part 15 – Radio Frequency Devices,” Code of Regulations, Federal Communications Commission, USA, 16 April 1999.
  • Omega Technologies [Online]. Available: http://www.omega.com/literature/transactions/volume3/strain2.html [2000, September 6].