FSAE Instrumentation 02/10/09

Ryan GunnJohn LeeDan Van WinkleAli Yilmaz

System Diagram

cRIO

9012 9201 9401

NI 9205 Pin Assignments

NI 9401 Pin Assignments

Front Box to cRIO

Front Box Layout

Pspice Schematics

Pspice AC Sweep

Pspice AC Sweep (cont)

Engine Tachometer

Power Signal

Accelerometer Power Source

ADXL330

Sensor Harness to Front Box

Rear Box to cRIO

Sensor Harness to Rear Box

Software Implementation

We have decided to restart implementation of the software

We are using last year’s software as a reference

We are attempting a complete overhaul of the software implementationMay lead to significant changes to

requirements and/or scheduling

Tentative Improvements

In the old implementation, saving and reading data was convoluted:Data binary log files run .vi to convert

binary log files to .lvm file run .vi to open .lvm file

It appears that we can skip intermediate step:Data .lvm file run .vi to open .lvm file

Processor and memory limitations

Other Solutions

USB driveMerge conversion program into read file

program

Future Challenges

Still need to implement some requirements: Interface between cRIO and softwareData calibrationMultiple signal analysis

Anticipate heavy debugging