Final Project Review – 4/10/2008

Al MukminJudson Ryckman

Miguel RoncalPaul Otto

Walter Thorn

FPGA: Field programmable gate array I/O: Input/Output cRIO: Compact Reconfigurable I/O LabVIEW: Laboratory Virtual Instrumentation

Engineering Workbench FTP: File transfer protocol USB: Universal serial bus VR: Voltage Regulator RC: Resistor*Capacitor VU Motorsports: Vanderbilt University

Motorsports NCAA: National Collegiate Athletic Association FR: Front-Right DAQ: Data Acquisition VI: Virtual Instrument

Data acquisition motivation

Engineering feedbackPerformance

enhancement/developmentDriver training

System Requirements

Channels 4x Wheel Speed 4x Shock Length 3 Axis Acceleration Engine RPM Oil Pressure Throttle Position Steering Position 2x Radiator Temps Brake Pressure

• Waterproof• Shock/EMF Resistant• 200 Hz Resolution Min• 20 Minutes Data

Storage• Remote Operated• Wirelessly Accessible

System Overview

System Spec. - Sensors

Channel Sensor Type Part/Model CostWheel Speed Proximity Switch Automation Direct PD1-

AP-1A4x

$24.00

Shock Position

Rotary Potentiometer

Novotechnik SP2841 4x $69.00

Acceleration Accelerometer Analog Devices ADXL330Z

$Free.99

Oil Pressure Pressure Transducer

Omega 32B1-250GV $Free.99

Brake Pressure

Pressure Transducer

Ashcroft T2 Series $211.65

Steering Rotary Potentiometer

Novotechnik SP2801 $69.00

Radiator Temp.

Thermistor BWD WT707 2x $9.49

Total Cost $671.63*

* A working system: Priceless

System Spec. – Sensor Network

Circuitry

2 Circuit Boxes: (Front/Rear)-Power distribution-Signal conditioning & filtering

Wiring Harness

Self-contained wiring system24-gauge color-coded telephony

cableScrew-type connectors on sensors &

boxes

System Spec. – Data Acquisition

NI CompactRIO 9012 Embedded microcontroller running

LabVIEW real-time 64 MB DRAM memory 10/100BASE-T Ethernet port with

embedded Web and file servers 9101 Chassis

Reconfigurable FPGA 4 module slots

System Spec. – Data Acquisition

Input Modules 9205 C-series analog input module

▪ 32 channel▪ 0-10 VDC input range▪ 16 bit resolution▪ 250 kS/s

9401 digital I/O module▪ 8 channel▪ 100 ns ultra high speed digital I/O

System Spec. – Telemetry

Linksys 802.11b wireless broadband router with high gain antennae

10Base-T connection to cRIOWireless capabilities:

Real-time data monitoring Remote LabVIEW configuration Data FTP

System Spec. – Data Network

LabVIEW Real-time VI

DAQ start/stop High speed

logging Real time

monitoring Controlled or

autonomous execution

40min of logging time at 400Hz

LabVIEW Post-processing VI

Shakedown Testing 4/2/08, 4/8/08

Successful high-speed logging of all channels