ECE 477 Design Review Team 13  Spring 2007 Greg Futia Greg VonFange Anirudha Bhende Phil Kasper Paste a photo of team members here, annotated with names of team members.

Outline Project overview Project-specific success criteria Block diagram Component selection rationale Packaging design Schematic and theory of operation PCB layout Software design/development status Project completion timeline Questions / discussion

Project Overview Waypoint Navigation Control System Automated Roadway Equivalent to visual systems User programmed GPS waypoints and route information Demonstrate Feasibility by building system for R/C car

Project-Specific Success Criteria An ability to determine position and heading of the vehicle enter and follow user programmable route control the steer angle and speed of the vehicle display heading and position information on a local lcd stop and resume motion of the vehicle, if an obstacle blocks its path

Block Diagram

Component Selection Rationale GPS Selection Selected Part: Garmin GPS 18 Accuracy WASS Capable OEM Solution Built in Antenna Refresh Rate 5 Hz Cost - $200 Competing Parts: SiRF III, U-Blox & Atmel, Magellan Engine

Component Selection Rationale Microcontroller Selected Part: PIC18F2410 Low Pin Count Built In Oscillator C Development Tools Availability of Development Tools in Laboratory Competing Parts: Freescale MC9S12UF32, TI MSP430F167

Component Selection Rationale Ultrasonic Sensor & Digital Compass Ping Ultrasonic Sensor Simple one 1 Interface Availability & Cost Hitachi Digital Compass Cost Minimal Accuracy Competing Parts: I2C Ultrasonic Sensor TBD

Packaging Design Considerations Mounting Protecting the PCB Connectivity for the Motor Controller, Steering Servo, and GPS Unit Port Holes for the Ultrasonic sensor Mounting of the GPS Receiver Opening for the LCD Size

PCB Enclosure CAD Model Packaging Design PCB Enclosure CAD Model

Autocar Schematic Page 1

Autocar Schematic Page 2

Software Design/Development Status Motor Control Signals Complete Center/Stopped Right/Forward Left/Reverse

Software Design/Development Status

Project Completion Timeline   2/25-3/3 3/4-3/10 3/11-3/24 3/25-3/31 4/1-4/7 4/8-4/14 4/15-4/21 4/22-4/28 4/29-4/30 Week 8 Week 9 Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Motor Control (done) Ultrasonic Sensor (done) PCB Layout LCD module GPS module Compass module Route Navigation User Programability User Manual Final Report Poster

Questions / Discussion