Data Acquisition Real-Time System Integration Preston Schipper Matt Hulse Adrienne Baile DARSI II

What is Data Acquisition? Network of Sensors Central Collection Processing of Information Output Our Data Acquisition System: Application: CU FSAE race car Design: Challenges, Solutions Teamwork & Group Schedule Impacts and Feasibility of DARSI after the Capstone expo. Examples of Data Acquisition: Anti-Lock Brakes Airplane Black Boxes Industrial Manufacturing Lab Experiements Data Acquisition

Collegiate Design Series Group of diverse engineering disciplines World Wide Competition Why FSAE needs DARSI Objectives of DARSI Gather Process Store Present Control What is Formula SAE?

DARSI System Breakdown: Fall 2004

DARSI versus DARSI II Fall 2004 Capstone Project: DARSI Fully functioning data acquisition microprocessor subsystems Linear position & Hall-effect wheel sensors SmartMedia memory logging Automated CAN Bus network MS Windows data viewing software Spring 2006 Capstone Project: DARSI II Hardware miniaturization; surface mount chips CAN Bus expansion; ‘bus master’ module Real-time information for driver; LCD module Multi-sensor compatible modules Enhanced PC software; analysis tools Traction control; real-time analysis/control module

DARSI II: Bus Master Module PIC Microcontroller – PIC18F458 Controller Area Network (CAN) C Programmable Polling Data / Unique Bus Traffic Current Bus Master: CAN Bus Data Frame Bus Master ‘Module’: Code package Installed on every DARSI microprocessor Hardware enabled Hardware settings control which module acts as bus master.

DARSI II: LCD Module LCD Module: CrystalFontz CFAG12864B-TMI-V

DARSI II: Multi-Sensor Modules Multi-sensor Modules: PIC Microcontroller – PIC18F258 Fast – 40 MHz Controller Area Network (CAN) 10-bit A/D converter C Programmable Minimize space/weight/repetitive hardware  OLD NEW

DARSI II: Traction Control Module Traction Control System Monitor front and rear wheel speeds through data on the CAN bus to detect wheel spin Communicate with the ECU by D/A to through CAN to limit engine power Changeable control system parameters for varying surface conditions (rain, gravel, dry, etc)

High Temperatures Signal Noise Signal Attenuation Durability / Vibrations Weather Power Limitations Packaging Storage Versus Real-time Time / Board Prototyping Communication / Compatibility Data Processing Speed Signal Acquisition Design Constraints & Implementation Challenges

ProcessorsLCD Systems PCB Redesign Surface mount hardware Traction Control Microchip – PIC18F258/458 Fast – 40 MHz Cost <$10 Controller Area Network (CAN) C Programmable CrystalFontz CFAG12864B-TMI-V 75.0 x 52.7 x 8.9mm 60.0 x 32.6mm Viewing Area Built-in Samsung controller KS0107/KS Motorsports Stage IC Engine Control System Details of Project

PCB Design (Adrienne) Schematics PCB Development and Population Processor Coding (Matt & Preston) Multi-sensor capabilities Bus Master module LCD Module Traction Control System New Module Prototyping (Matt & Adrienne) Breadboarding Testing Traction Control ECU Interfacing (Preston) Labor and Responsibilities

Schedule

Economics and Marketability Broad consumer market Fully customizable State of the art Manufacturability and Sustainability Pre-manufactured and replaceable sensors Modularity allows for adaptation Simple expansion capabilities What's After Expo?

Environment Emissions Fuel Economy Safety Acquired information allows for determining safe operating limits Driver feedback to warn of dangerous conditions Traction control will decrease out of control vehicles Society Racers Environmental Applications in general consumer market Impacts

To design and construct improvements and expansions for the DARSI modular telemetric data acquisition system for automotive applications with a focus on the CU FSAE race car. Questions? Final Objective