SECON 2012 Final Presentation

Team Michael Helmbrecht Electrical Engineer Measurement Tasks Course Construction Chris Nicholas Computer Engineer Measurement Tasks Course Construction Kristin Sharp Electrical Engineer Measurement Tasks Course Construction Ryan Rougeau Electrical Engineer Navigation PCB Design Erin Tate Electrical Engineer Navigation PCB Design Jason Warren Computer Engineer Navigation PCB Design Dr. Robert Reese Advisor

Outline Competition Overview Practical Constraints & Related Testing Technical Constraints & Related Testing System Testing Summary & Future Goals

Outline Competition Overview – Playing Field – Tasks – Scoring Preliminary Rounds Final Rounds

Playing Field Carpet with white tape Task Boxes 4-Minute Rounds

Tasks Approach Task Box Take Measurement Make Decision Repeat

Scoring Qualifying Round: – Push start and move 1 ft. Preliminary Rounds: 3 Rounds – Average of the three scores – Top 6 teams advance to finals Final Round: – Team with highest score wins Points: – 100 initial points per round – +10 points for correct decisions – –10 points for incorrect decisions

Outline Practical Constraints & Related Testing – Modular Design PCB parts placed with headers FSM coding style – Troubleshooting Bluetooth and debugging testing

Modular Design PCB Layout PCB PIC24 Breakout Board Bluetooth Module Motor Control Breakout Board

Modular Design FSM Coding Style – Separate states for Navigation and Measurement programming

Troubleshooting Bluetooth and Debugging Testing – Bully Bootloader COM ports

Outline Technical Constraints & Related Testing – Voltage – Capacitance – Temperature – Waveform – Navigation

Voltage Testing

Plate VoltageMeasured VoltageMultimeter ReadingPercent Error 15V3.08V3.16V2.5% 11V2.68V2.76V3.0% 9V2.48V2.55V2.7% 0V1.59V1.64V3.0% -9V0.70V0.73V4.0% -11V0.50V0.53V5.7% -15V0.10V0.12V16.7% MAX VOLTAGEMIN VOLTAGETHRESHOLDS 15V-15V9V < V < 11V

Capacitance Testing

Plate CapacitanceMeasured CapacitancePercent Error 10.7μF11.4μF6.5% 1.01μF1.06μF5% 46.9nF56.9nF21% MAX CAPACITANCEMIN CAPACITANCETHRESHOLDS 10.0μF10.0nF100nF< C < 1μF

Temperature Testing

Plate TemperatureMeasured Plate TemperatureMeasured Ambient Temperature 68.7  F69.7  F76.4  F 75.0  F75.6  F76.4  F 89.6  F 76.4  F 102  F 76.4  F

Waveform Testing Output waveform Input waveform V ref + -

Waveform Testing

Square Wave Sawtooth Wave V ref

Navigation Testing Line Sensing Distance Sensing

Line Sensor Testing Sensor Mounting

Line Sensor Testing Proportional Drive Each sensor has: – Priority – Weight

Line Sensor Testing LabVIEW Debug

Line Sensor Testing Test TypeLaps AttemptedLaps SuccessfulRate of Success Initial Line Following: Non- Latching % Post-Debugging: Latching % Discovered a latching turn state helped stay on line

Distance Sensor Testing Location Actual Distance (cm) Test 1 Count Test 2 Count Test 3 Count Test 4 Count Test 5 Count Average Count Out of Range > Stop Line Contact with Box

Outline System Testing – Integration testing – Demo video

System Testing Integration of both subsystems Ensure probes are accurate and relays switch correctly Measurement must be taken once box is reached and before decision is made

System Testing

Outline Summary & Future Goals – Timeline – Future goals Fix Bugs Populate PCB Improve performance

Timeline AugustSeptemberOctoberNovemberDecember Strategy and Course Construction Research and Purchasing Programming Circuit Design Debugging Prototype

Fix Bugs Three bugs to correct – Measurement Transition between tests – Navigation Right turn problem Box approach error

Populate PCB

Improve Performance Balance speed with reliability of navigation and measurements Improve measurement accuracy Finalize entire package – Sensor and probe location – Mounting of PCB

SECON 2012 Final Presentation