WindBot final presentation - NYU Tandon School of...
Transcript of WindBot final presentation - NYU Tandon School of...
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ProjectProject
WindBotWindBotMikhail Bruk
Anton TalalayevMomchil Dimchev
Mechatronics Design Project 2008 1
Mechatronics Design Project 2008
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Wind PowerWind Power
Wind Turbine Sites◦ Satellite data inaccurate◦ Human testing impractical
Cost efficient method for data acquisition◦ Little supervision required◦ Better precision◦ Reliable data
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Project ProposalProject ProposalDesign an autonomous robot
Navigate through a predetermined path
Collect wind velocity measurements
Obtain wind direction
Return to starting point
Display optimal locations for a wind turbine
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Initial DesignInitial Design
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Features:
•Propeller & Vanes
•Direction Sensor
•Tachometer
•Wheel Encoder
•Accelerometer or Compass
•LCD Display
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Mechanical ComponentsMechanical ComponentsAerovane◦ Propeller and vanesMaterialsSensor casings
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Electrical ComponentsElectrical ComponentsActuators
◦ Two continuous servo motors
◦ Controlled via 555 Timer
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Electrical ComponentsElectrical ComponentsAnalog Sensor
◦ RCTime circuit
◦ Photoresistorand LED pair
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Electrical ComponentsElectrical ComponentsDigital Sensor◦ Rotational Encoder
◦ IR LED and Receiver pair
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Electrical ComponentsElectrical ComponentsDigital Sensor
◦ Wheel Encoders
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Project AnalysisProject AnalysisPriority:◦ Wind Measurement◦ Precise navigation◦ Versatility
Testing:◦ Variable conditions◦ Repetitive data
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Project AnalysisProject AnalysisDesign Approach
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Project AnalysisProject Analysis
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Programming and TestingProgramming and TestingCalibration Programs◦ Wheel alignment◦ Speed adjustment◦ Velocity calibration◦ Encoder adjustmentMain Routine◦ Follow the grid◦ Record and save data◦ Retrieve data
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Programming and TestingProgramming and TestingSubroutine approach
Easy modification
Reused variables
Fail-safe encoders
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Velocity CalibrationVelocity Calibration
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VIDEO
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Data from Velocity CalibrationData from Velocity Calibration
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Plot velocity vs. Tachometer Value
Obtain a conversion factor
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CostCost
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•Boe-Bot Robot $ 159.95
•555 Timer IC (2) $ 2.95
•Power Supply: (4 AA’s)
$ 2.99
•Breadboard (1) $ 7.99
•LCD Terminal $ 29.95
•Hitachi HM55B Compass Module (1) $ 29.95
•Balsa Wood (1/8” x 6” x 36”) (1) $ 3.95
•Tube Fitting (1) $ 2.95
•Aluminum Rod (1/16” x 12” x ¼”) (1) $ 2.36
•Stainless Steel Propeller (1) $ 10.95
•Miscellaneous $ 12.00
Total: $ 253.99
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Major ChallengesMajor ChallengesFollow the preset trajectory Sensor reliabilityProgram – sensor connectionRelative Angle MeasurementBasic Stamp limitations:◦ RAM and EEPROM
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Major ChallengesMajor Challenges
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Memory Map
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Full DemoFull Demo
VIDEO
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Demo DataDemo Data
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Prototype SuggestionsPrototype SuggestionsGPS navigationMeteorological equipmentObstacle Avoidance ProgramVideo camera (human operator)Larger Memory
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ConclusionConclusionSystematic testing approach
Acquire more memory
Increase project cost for better accuracy
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AcknowledgementsAcknowledgements
The Italians
Prof. Sean Peterson
Thank you!
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