Wireless Data Acquisition Wireless Data Acquisition System (WiDAS)System (WiDAS)

Abstract:Abstract:This WiDAS is intended to be implemented on Bradley University's SAE Formula Car, a full life-cycle design project undertaken by mechanical engineering students at Bradley University every year. The WiDAS gathers information from an assortment of sensors throughout the race-car to measure velocity, acceleration, engine speed, coolant temperature, oil pressure, and on-car battery voltage. Once this information has been processed by an on-board microcontroller it is sent in real-time to a LCD touch-screen and a wireless transmitter on the vehicle , then transmitted to an off-track laptop. The off-track laptop archives this information through the use of a WinWedge software interface, and provides the user of the off-track laptop with gauges to monitor specific race-car parameters through the use of Excel software.

Complete System Block DiagramComplete System Block Diagram

By: Justin PetersBy: Justin Peters Advised By: Professor Steven GutschlagAdvised By: Professor Steven Gutschlag

Hardware:Hardware:Chipcon Wireless Boards

- 433MHz Transmission Band- 3 mile range with antenna- 1% error rate within 3 mile range- 250 kbps Transmission Rate

Amulet Color Touch-screen-512 MB Internal Memory-µHTML based

SiLabs 8051F120DK Microcontroller- 100Mhz 8-bit processor- Dual UARTs- 5 Timers- 8 A/D

Result:Result:In car touch screen displayRemote data displayData logging capability -RPM (Engine Speed) -MPH (Wheel Speed) -Battery Voltage -Coolant Temperature -Low Oil Pressure Warning

PC Software:PC Software:WinWedge Standard

-Read serial port data-Format and hold data-Import data to Excel