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RC Camera Car Subsystems Design Review P14226 10/29/13

Tim Southerton Brian Grosso Matthew Morris Lalit Tanwar Kevin Meehan Alex Reid. RC Camera Car Subsystems Design Review P14226 10/29/13. Advisor : Dr. Becker-Gomez. Agenda Items. Background Review Proof of Concept Console Fabrication Timing Gate Wheel Speed Encoder

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RC Camera Car Subsystems Design Review P14226 10/29/13

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  1. Tim Southerton Brian Grosso Matthew Morris Lalit Tanwar Kevin Meehan Alex Reid RC Camera CarSubsystems Design ReviewP1422610/29/13 Advisor: Dr. Becker-Gomez RC Camera Car SDR

  2. Agenda Items • Background Review • Proof of Concept • Console Fabrication • Timing Gate • Wheel Speed Encoder • Chassis Modification • Car Bumper • Console Controller • Xbee Communications • Wireless Camera • Pending Detailed Design Items • Testing / To Do List • Bill of Materials RC Camera Car SDR

  3. Problem Definition Review • Project Goal: • Build a RC car platform controlled remotely with intuitive controls and visual feedback that can be expanded to demonstrate Controls to college students. The project needs to be captivating and able to demonstrate multidisciplinary engineering innovation at various RIT events this year and into the future. • Deliverables: • RC Car Platform with Cameras and Sensors • Driving Station with Controller • Equation of Motion of the System • Characterizing Parameters of the System • Source Code for Low Level Processing • Interface for Student Coding • Preliminary Differential Drive Code • Supporting Documentation Addressed with First-Level Proof of Concept To be Addressed with Further Proof of Concept Testing RC Camera Car SDR

  4. Stakeholders Review • Customer: Dr. Juan Cockburn • Controls Professor, RIT, Computer Engineering (CE) • Sponsors: • RIT CE Department, Multidisciplinary Senior Design (MSD) • Freescale Semiconductor • RIT FMS (Chris Furnare and Jim Shuffield) • RIT ME Robotics Lab • Event Attendees: • Imagine RIT, Freescale Cup 2014 • Various Campus Symposiums and Workshops • MSD Team • Future RIT Researchers • Future RIT MSD Teams / Prospective Students RC Camera Car SDR

  5. Engineering Req.’s Review • Detailed Engineering Requirements • No current changes made to engineering requirements • Further proof of concept testing will now allow for detailed evaluation of specific parameters • Car Performance Data, Wireless Transmission, etc. RC Camera Car SDR

  6. Console Fabrication POC • Risk: Medium • Metrics / Functions Addressed: • Seat User • Look Professional • Diversify Technologies • Built a preliminary console for proof of concept on component collection and platform for iterative design RC Camera Car SDR

  7. Console Fabrication POC RC Camera Car SDR

  8. Timing Gate POC • Risk: Low • Metrics / Functions Addressed: • Provide Competitive Element • Measure Movement • Event Entry • 66 cm Wide, 33 cm Tall • 450 mV Threshold for car passing IR Sensor RC Camera Car SDR

  9. Wheel Speed Encoder POC • Risk: High • Metrics / Functions Addressed: • Measure Movement • Characterize System • Provide Differential Drive • Move Car Chassis • Two Iterations 3D Printed • Color Choice, Diameter, Sensor Options, Spacing, Fits RC Camera Car SDR

  10. Wheel Speed Encoder POC 1st Iteration Design 2nd Iteration Design Optical Switch Encoder Encoder Optical Switch RC Camera Car SDR

  11. Chassis Modification POC • Risk: High • Axles and Calculations • Metrics / Functions Addressed: • Minimum Turning Radius • Manual Reset Required • Balance Expandability • Differential Drive Controls • Positive Visual Inspection Car Current State RC Camera Car SDR

  12. Chassis Modification POC RC Camera Car SDR

  13. Chassis Modification POC • Risk: High • Preliminary Performance Testing • RC Car TX/RX Testing • Arduino + Xbee Encoder Data TX/RX • Metrics / Functions Addressed: • Physically Move Car • Transmit / Interpret Controlling Signals • Measure Movement RC Camera Car SDR

  14. Chassis Modification POC Preliminary RF Setup Preliminary Data lspeed = 45.0/(lnow-lprevious)*1000*3.14*2.8/360/12 (feet/sec) RC Camera Car Driving 10 27 13 RC Camera Car SDR

  15. Car Bumper POC • Risk: High • Metrics / Functions Addressed: • Protect Components • Manual Reset Required • Added to protect the car during testing • No cost added PVC, Foam, Metal Standoffs, L-Brackets, Zip Ties • Plans to for a presentable bumper • Nylon for a bumper donated by Rob Kraynik RC Camera Car SDR

  16. Console Controller POC • Risk: High • Metrics / Functions Addressed: • Respond to User Control Signals • Immerse User with Realistic Controls • Reverse engineering done on donated steering wheel / pedal controller • Determination of analog output options for user input to system RC Camera Car SDR

  17. Console Controller POC Steering Encoder Optical Switch RC Camera Car SDR

  18. Xbee Communication POC • Risk: High • Metrics / Functions Addressed: • Transmit Controlling Signals • Interpret Controlling Signals • Respond to User Control Signals • Measure Movement • Successfully interfaced Xbee’s with Freescale KL25Z Board RC Camera Car SDR

  19. Wireless Camera POC • Risk: High • Metrics / Functions Addressed: • Transmit Visuals • Give user driving feedback • Wireless camera with analog output determined as best option • Analog TX/RX modules used to transmit video to the LCD screen • Preliminary testing accomplished with Matt’s mini-camera and Robotics Lab video transmitters https://www.youtube.com/watch?v=JAYgUAG45Hg RC Camera Car SDR

  20. Pending Detailed Design Items • Controls Algorithm Implementation • Interface with Simple User Code • Simulink to Microcontroller Interface • Embedded Coder Program • K60/K70 Microcontroller Constraint • Code Warrior Programming Interface • Linear Speed Sensing for Systems Model • Low speed applications of control algorithm • Affordable IMU most likely high signal to noise ratio RC Camera Car SDR

  21. Testing / To Do List • Steering Wheel / Pedal Testing • ME’s: Access Hatch on Console • EE’s Tap Signals to Microcontroller • Wheel Speed Sampling Solution and Testing • Car Performance Testing • Range Testing of TX/RX • Optical Gate Speed Testing • K60/K70 Xbee / Motor Controller Integration • Controls Application Software Integration • IMU Measurement • Nylon Bumper Design and Fabrication • Wireless Camera Component Selection • Component Mounts • Aesthetics RC Camera Car SDR

  22. Bill of Materials Current Budget • Approximately $78.33 Spent Thus Far • Approximately $704.25 in Total Value of Parts • Student Donated ~$100 • Freescale Donation 2 x ~$200 Chassis Kits • FMS / Free Items ~$80 • Min. Projected Remaining Expenses $284.36 • Wireless Camera, TX, RX • Casters, Course Materials, Nuts Bolts, Cables RC Camera Car SDR

  23. Additional Slides P14226 EDGE Site RC Camera Car SDR

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