CUBE 3D Glasses - PowerPoint PPT Presentation

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CUBE 3D Glasses
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CUBE 3D Glasses

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  1. CUBE 3D Glasses Group 22 Lisa Litherland

  2. Introduction • Lenses open and close to create 3D effect • Glasses operate on IR signal • IR signal cannot pass through walls of CUBE

  3. Objective • Transmit signal to glasses using RF

  4. Benefits • Can close final wall of CUBE • Full 6-wall virtual experience • Do not have to hold transmitter in front of you • No bulky cords

  5. Original Ideas • Radio Shack TX/RX • Too bulky • Receiver needed to be plugged into outlet

  6. Original Ideas (cont.) • Wireless headphones • Requires understanding circuitry of headphones • Expensive ($60 - $500)

  7. Linx Modules • Small • Light-weight • Easy to implement • Cheap • TX - $4.90 • RX - $10.65

  8. Original Layout

  9. Final Layout

  10. 3 Main Stages • IR Detector • RF System • IR Emitter

  11. IR Detector • Computer sends signal to StereoGraphics IR emitter • Detector captures IR signal • Sent to data in of TX

  12. IR Detector

  13. Input Signal

  14. RF SystemTX • Powered by 5V wall power supply • Data in is from IR Detector

  15. Transmitter

  16. RF SystemRX • Powered by 3V lithium battery • Small • Light-weight • Data out sent to IR emitter

  17. IR Emitter • Must amplify signal from RX • Power not adequate to turn on LED • Use a BJT transistor 2N2222A • Connect Vcc to emitter • Connect anode of IR LED to collector

  18. Receiver Circuit

  19. Testing • Oscilloscope • Viewed input signal • Checked shape of output signal • Measured input/output voltages • Frequency Counter • Frequency at input and output match

  20. Testing (cont.) • Glasses • Check that LED makes lenses switch • Adequate range (~200ft) • Signal goes through CUBE walls

  21. Challenges • Short battery life • Flickering • Old fashioned oscilloscope • No Autoscale!

  22. Successes • Designed and implemented complete working system • Completed work on time • Implemented low cost solution

  23. Future Uses • Same design can be used to send data from person inside CUBE to computer • Heart monitor • Skin conductivity

  24. Questions?