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“THE LOCATOR” R. F. LOCATION SYSTEM

TEAM ZISSOU presents…. “THE LOCATOR” R. F. LOCATION SYSTEM. MIKE GOULD KARA MCMILLIN MARCUS PEARLMAN CHRIS SINKEY JACOB WILTGEN. R.F. Location Project General Design . Transmitting Antenna. Transmitting Antenna sends power signals. Receiving Antennas. Power

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“THE LOCATOR” R. F. LOCATION SYSTEM

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  1. TEAM ZISSOU presents…. “THE LOCATOR”R. F. LOCATION SYSTEM MIKE GOULDKARA MCMILLIN MARCUS PEARLMAN CHRIS SINKEY JACOB WILTGEN

  2. R.F. Location Project General Design Transmitting Antenna • Transmitting Antenna • sends power signals Receiving Antennas Power Rectifier • Antenna arrays receive • power signal • Power is rectified and • amplified Amplifier • DC power signal is analyzed USB Interface 68HC11 Microcontroller • 2-D Location outputs to • Computer, LCD, or PDA • Bill Murray still confused.

  3. Project Objectives Optimal Objective • Create a fully functional 2D location system Baseline Objective • Directional finding antenna

  4. Chip Layout DATA BUS Receiver Output RAM ROM FPGA 10 68HC11 • RAM: • Temporary Receiver Variables Control lines to Antenna Array • ROM: • Software Storage • HC11: • Controls Antenna Array Switching • Interfaces with PC via USB • HC11 will read from external memory.

  5. Software • Extrapolate data from USB interface • Program computer workstation to locate transmitter using C • Receives a bit pattern from each receiving unit, • Translates into a vector • Interprets vector into a graphical location

  6. Software continued • Output data to screen • Interpret data to find a direction within a given boundary • Plot directions point for point on Cartesian coordinate 2-D plane

  7. Software Controlled Hardware 1 Antenna Array • 68HC11 Microcontroller • Includes A/D converter, timers • USB interface between 68HC11 and computer workstation • 10-12 circularly polarized antennas • FPGA chip • ROM • RAM

  8. HardwareAntenna Design Details • Transmitting Antenna Design • Monopole design, linearly polarized. • Receiving Antenna Arrays • Circularly polarized, electrically scanning • Signal Processed by 68HC11 Microcontroller • Includes A/D converter • Array Schematic not yet finished

  9. Schedule

  10. Division of Labor • Chris, Marcus, Mike • Design and construction of transmitter, antenna array • Kara, Jake • Software for receiver switching, vector interpretation, visual output, interfacing between receiver and PC, and differentiating between I.D. tags.

  11. Feasibility • 4 Microprocessors 68HC11 • 4 FPGA’s - 4 @ $100 (if used) • 4 32 K RAM - 4 @ $5 • 4 32 K ROM - 4 @ $5 • 4 FR4 boards - 4 @ $5 • USB cables - 120 ft. ~ $40

  12. Market Analysis • Possible Uses • Warehouse Inventory Management • Small Businesses • Home • Tracking personal objects • Tracking animals (dogs, cats, hamsters) • Monitoring hospital patient locations

  13. Project Risks • Parasitic foreign disturbances • Other electronic devices may disturb antennas • Time management • No benchmark so may take longer than expected

  14. Additional Functionality • Specific ID • Tracking multiple tags • Determining location of objects in 3-D • Finding Shamu

  15. Questions?

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