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Data Acquisition Real-Time System Integration. DARSI II. Preston Schipper Matt Hulse Adrienne Baile. Data Acquisition. What is Data Acquisition? Network of Sensors Central Collection Processing of Information Output. Our Data Acquisition System: Application: CU FSAE race car

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darsi ii

Data Acquisition

Real-Time System Integration

DARSI II

Preston Schipper

Matt Hulse

Adrienne Baile

data acquisition
Data Acquisition
  • 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
what is formula sae
What is Formula SAE?
  • Collegiate Design Series
  • Group of diverse engineering disciplines
  • World Wide Competition
  • Why FSAE needs DARSI
  • Objectives of DARSI
  • Gather
  • Process
  • Store
  • Present
  • Control
darsi versus darsi ii
DARSI versus DARSI II

Fall 2004 Capstone Project: DARSI

Spring 2006 Capstone Project: DARSI II

  • Fully functioning data acquisition microprocessor subsystems
  • Linear position & Hall-effect wheel sensors
  • SmartMedia memory logging
  • Automated CAN Bus network
  • MS Windows data viewing software
  • 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
DARSI II: Bus Master Module

Current Bus Master:

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

CAN Bus Data Frame

darsi ii lcd module
DARSI II: LCD Module

LCD Module:

CrystalFontz CFAG12864B-TMI-V

darsi ii multi sensor modules
DARSI II: Multi-Sensor Modules

OLD

NEW

  • 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
darsi ii traction control module
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)
design constraints implementation challenges
Design Constraints & Implementation Challenges
  • 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
details of project
Details of Project

Processors

LCD Systems

  • 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/KS0108
  • PCB Redesign
  • Surface mount hardware

Traction Control

  • 034 Motorsports Stage IC Engine Control System
labor and responsibilities
Labor and Responsibilities
  • 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)
what s after expo
What\'s After Expo?
  • 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
impacts
Impacts
  • 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
final objective
Final Objective

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?