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Jeff Burch Simon Dakermanjian Mazen Arakji Jonah Kadish Derek Smith

R. A. H. M. Jeff Burch Simon Dakermanjian Mazen Arakji Jonah Kadish Derek Smith. R. A. H. M. Brief Overview. ECK measures electrical activity of the heart 3 electrodes. Real Time Athlete. Health Monitor. ECG Data. R. A. H. M. Circuit Diagram. Block One. Block Five. Block three.

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Jeff Burch Simon Dakermanjian Mazen Arakji Jonah Kadish Derek Smith

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  1. R. A. H. M. Jeff Burch Simon Dakermanjian Mazen Arakji Jonah Kadish Derek Smith

  2. R. A. H. M. Brief Overview • ECK measures electrical activity of the heart • 3 electrodes Real Time Athlete Health Monitor

  3. ECG Data

  4. R. A. H. M. Circuit Diagram Block One Block Five Block three Real Time Athlete Block Four Block two Health Monitor

  5. R. A. H. M. Block One • Differential Amplifier • Takes three inputs • Has a gain adjustment Real Time Athlete Health Monitor

  6. R. A. H. M. Block Two • High pass filter • Tried to filter motion artifact Real Time Athlete Health Monitor

  7. R. A. H. M. Block Three • First LPF • Gain is 1 • Cuttoff is 20 Hz Real Time Athlete Health Monitor

  8. R. A. H. M. Block Four • Second LPF • Gain is 2 • Cuttoff is the same as the first LPF Real Time Athlete Health Monitor

  9. Block Five • Gain Block of 2

  10. Complete Circuit

  11. Power Issues • Oscilator 5 V • Micricontroller 3.6 V • Transmitter 9 V • ECG circuit +/- 9V • Transformer

  12. R. A. H. M. Microcontroller • 16 bit RISC processor • 22 I/O pins • 10 bit, 200ksps ADC • 4kB program memory • 256B RAM • USART included Real Time Athlete Health Monitor

  13. R. A. H. M. Microcontroller Architecture • 51 instructions, 7 addressing modes • 16 registers, 12 general use • 6 software configurable power modes • Interrupt-driven I/O, ADC, UART • Linearly Addressed RAM, Program Memory, and Interrupt Vectors • Requires external oscillator for stability/ADC Real Time Athlete Health Monitor

  14. R. A. H. M. Microcontroller Layout Real Time Athlete Health Monitor

  15. R. A. H. M. Microcontroller Interface Real Time Athlete Health Monitor

  16. R. A. H. M. Microcontroller/RF Real Time Athlete Health Monitor

  17. R. A. H. M. 9XStream™ 900 MHz Wireless OEM Module • Long Range • -110 dBm receiver sensitivity (industry avg. only -93 dBm) • Up to 1500 ft. (450 m) indoor/urban (900 MHz) • Up to 7 mi. (11 km) line-of-sight w/ dipole • Up to 20 mi. (32 km) line-of-sight w/ high gain • Low Power • 150 mA transmit / 50 mA receive current • Power down current to <26 µA • Very Robust and Sophisticated • Numerous Communication Options (UART) • Well Priced • Around $200.00 Real Time Athlete Health Monitor

  18. R. A. H. M. Communication Details • Perfect Match to Our Requirements • Stops Us from “Reinventing the Wheel” • Easily Configured • Set up for Scalability Real Time Athlete Health Monitor

  19. R. A. H. M. Data Packet Details Real Time Athlete Health Monitor

  20. R. A. H. M. Transceiver Configuration Real Time Athlete Health Monitor

  21. R. A. H. M. Data Filtering Real Time Athlete Health Monitor

  22. R. A. H. M. Real Time Athlete Health Monitor

  23. R. A. H. M. Real Time Athlete Health Monitor

  24. R. A. H. M. Base Station Interface Two Options Real Time Athlete Standard Pins andVCC CMOS Levels andSCI Interface Capabilities of the HC11 Health Monitor

  25. R. A. H. M. BASE STATION • Current Status • Operating Parts • Tests Performed • Parts Listing • Future Objectives • Parts to be Added/Replaced • Tests to be Performed Real Time Athlete Health Monitor

  26. R. A. H. M. Current Board Real Time Athlete Health Monitor

  27. R. A. H. M. schematic Real Time Athlete Health Monitor

  28. Buffer Safeguard for transfer of bit values Latch Maintains correct functionality between low order address bits and data bits. Also acts as a buffer R. A. H. M. Buffers and Latch Real Time Athlete Health Monitor

  29. R. A. H. M. EPROM • 32Kx8 EPROM • Chip Select Connected to ground • Pin A15 not terminated Real Time Athlete Health Monitor

  30. R. A. H. M. Safety Tests Completed • Diode Bridge • Incase opposite polarity is applied • Noise Tests • Before Power Bus • At System Power of HC11(84mV) • Individual Chips Real Time Athlete Health Monitor

  31. Current Components MC68HC11 EPROM BUFFERS/LATCHES 5V REGULATOR RESET SWITCH Future Components Xilinx FPGA SRAM Bi-directional Transceiver LCD R. A. H. M. Parts Listing Real Time Athlete Health Monitor

  32. R. A. H. M. LCD • 20x4 • Basic Control Pins • R/W • 0 = Write, 1 = Read • E • Enable pin of processor • RS • Register Select (0 = Instruction Register, 1 = Data Register) • D0-D7 • Data Pins Real Time Athlete Health Monitor

  33. Current Costs Micro Controller (donated) Harness: $30 3 Transceivers, with 2 RS232 interface: $230 Future Costs LCD: $40 Costs

  34. R. A. H. M. Upcoming Plans/Tests • Test if HC11 can fetch and execute instructions (NO OP NO OP NO OP JMP). • Implement Xilinx FPGA. Run same basic code. • Introduce SRAM and use Xilinx for Chip Select. Run same basic code. • Begin writing useful code. Real Time Athlete Health Monitor

  35. R. A. H. M. Basic Chip Select Circuit Real Time Athlete Health Monitor

  36. R. A. H. M. Memory Mapping • Using Pins A15, A14 and A13 for Chip Select Real Time Athlete Health Monitor

  37. R. A. H. M. schedual Real Time Athlete Health Monitor

  38. Milestone I Transmitter sends accurate ECG data Writing useful code to process data Milestone II Outputting heart rate to LCD R. A. H. M. Future Plans Real Time Athlete Health Monitor

  39. R. A. H. M. Division of Labor Real Time Athlete Health Monitor

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