Projects:2014S1-11 Wireless Rotation Detector for Sport Equipment

This project focuses on developing a wireless non-optical solution for measuring the rotation of objects. The solution to this problem is approached through the use on antenna and the polarisation effect that antenna are subject to.

Outline of proposed work

• Improve knowledge of antenna theory, antenna simulation software, signal generation, signal interference, calculation algorithm (fast Fourier transform), Arduino Board and Arduino development tool.
• Develop the system overview of the project and identify the key components needed.
• Compare the features of commercial devices with custom designs (e.g. size, price, weight, performance, working condition and low-profile configuration).
• Test the commercial devices and custom-designed devices under laboratory conditions. Then integrated all the devices together and measure the performance of the project under real-world condition.

High-Level Plan

• Phase 1 :
  • Generating the ISM frequency by using the voltage control oscillator.
• Phase 2 :
  • Using the transceiver to send the signal.
  • The absorber is attached to the target object.
  • Receiving the reflected signal from absorber.
• Phase 3 :
  • Separating the received signal from the transmitted signal through using of bidirectional-coupler or crosstalk-reduced receiver.
• Phase 4 :
  • Using the power of the separated received signal to calculate the rotation speed of the target object.

Team

Group members

• Mr Yizhang Chen
• Mr Todd Mark
• Mr Thomas Davis

Supervisors

• Dr Thomas Kaufmann
• Prof. Christophe Fumeaux

Resources

• Bench 10
• Standard PC
• Application software
  • ANSYS HFSS
  • DraftSight
  • Processing 2
  • Arduino IDE
• Arduino UNO Board
• DC Power supply
• Signal Generator
• Arbitrary Function Generator
• Oscilloscope