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Wireless Data Acquisition System (WiDAS)

Justin Peters Advisor: Professor Steven Gutschlag Senior Design Project. Wireless Data Acquisition System (WiDAS). - Background Information - Project Goals - System Parts (4) - Project Status - Future Work - Questions. Outline.

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Wireless Data Acquisition System (WiDAS)

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  1. Justin Peters Advisor: Professor Steven Gutschlag Senior Design Project Wireless Data Acquisition System(WiDAS)

  2. - Background Information- Project Goals- System Parts (4)- Project Status- Future Work- Questions Outline

  3. - Important for mechanical engineers- Only Excel GUI used from legacy project Background

  4. - Intake data from various sensors with the MCU (wheel speed, engine speed, coolant temp, etc...)(100ms)- Wireless communication between two wireless boards - GUI for Excel software- GUI for the Amulet color touch-screen- Easily augmentable code (C versus Assembly) Project Goals

  5. Overall System Block Diagram

  6. SiLabs 8051F120DK System Parts - Microcontroller

  7. Utilization • 100 MHz 8-bit processor • 5 Timers • 2 UARTs • 8 A/D channels (12-bit)

  8. MC1488 – TTL to RS-232 SiLabs UART output ---> RS-232 --->

  9. Sensors - Five more voltage sensors can easily be added

  10. Signal Conditioning Circuitry

  11. Software High-Level Flow Chart

  12. Amulet Color Touch-screen LCD System Parts – LCD Touchscreen

  13. Communication - buf_test[0] = 0xE0; // write data response - buf_test[1] = '0'; - buf_test[2] = '2'; // 1 & 2 for which byte - buf_test[3] = 'F'; - buf_test[4] = 'F'; // 3 & 4 for what value - UART_put(buf_test,1);

  14. Touch-screen GUI

  15. FIFO, MSK, 433 MHz, 250 kBaud1% Packet Error per packet of 20 bytes System Parts – Wireless Devices

  16. System Parts – WinWedge/Excel

  17. WinWedge - Setup =WinWedge|Com4!'Field(3)'

  18. - All system-level specifications were met- Currently awaiting more specific sensor specs so that the WiDAS can be implemented on the SAE racecar Project Status

  19. - Bi-directional headset communications between wireless boards- Enhanced GUI for Amulet touch-screen- Enhanced GUI for off-track laptop user Future Work

  20. Questions?

  21. Microcontroller – Digital Crossbar

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