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P08456-LED Lighting for an Underwater ROV. Jeremy Schiele-Project Manager Jonathan Lent-Mechanical Engineer Ryan Seeber-Computer Engineer Justin VanSlyke-Mechanical Engineer Benoit Hennekinne-Electrical Engineer Sponsored by:. P08456-Project Description.
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P08456-LED Lighting for an Underwater ROV Jeremy Schiele-Project Manager Jonathan Lent-Mechanical Engineer Ryan Seeber-Computer Engineer Justin VanSlyke-Mechanical Engineer Benoit Hennekinne-Electrical Engineer Sponsored by:
P08456-Project Description • End Users: Underwater ROVs and RIT’s robotic platforms (RP-1, 10, 100) • Waterproof light for underwater exploration • Top Level Requirements (eng. Specs): • Waterproof design (min. 400 ft depth) • High light output (min 250 lm @ 5 Watts) • Low power consumption (max. 10 Watts) • Controllable from remote surface unit • Modular housing design must be able to house thruster’s motor unit as well
P08456-Light Unit Concept • Watertight bulkhead electrical connector • Corrosion resistant aluminum housing • Two LED colors available • Light unit controllable from surface • Two mounting systems available
P08456-Thruster Housing Concept • Utilizes the same rear portion as LED light unit, bulkhead connector, and PCB assembly
P08456-Mounting System Concept • Two mounting systems to meet specific requirements for each housing application Light = Adjustability Thruster = Rigidity
P08456-Functional Flowchart Battery Power Convert battery power into required voltage Provide LEDs w/ correct amt. of power Light Heat User Input Process Input Send PWM to LED driver Receive data from Temp. sensor Temp. Data
P08456-Summary of Design Review • Continue to meet with customer to fine tune housing design • Breadboard of electrical components is next step for verification
Risk: Pressure & Sealing Requirements Operation pressure: 216 psi (500 ft) All leak-points need to be verified and secured Mitigation: FEA analysis of housing design Pressure chamber testing of prototype at Hydroacoustics Inc. Risk: Heat Dissipation LED board produces up to 10 watts of heat Can cause premature failure for LEDs and damage other electronics Mitigation: Thermal resistance analysis of LED board Separate LEDs from other electrical components LED board will have extra thick copper traces to evacuate heat P08456-High Risk Areas
P08456-Product Development Phase Phase 0: Planning Phase 1: Concept Development Phase 2: System Level Design Phase 3: Detailed Design Phase 4: Testing & Refinement MSD I MSD II Final Production Units 0 1 2 3 4 Current Phase of Development
P08456-Current State of Design • Current design meets all specs possible at this point in development
P08456-Current Budget • Cost / LED light unit: $380.87 • Cost / thruster housing unit: $323.69 • Development & bread board: $200.00 • Prototype Unit: $150.00 • Total Light Unit Budget: $1873.48 • Product provided to P08454: $1295.00
P08456-MSDII Schedule Milestones • 12/7 Machine Drawings finalized for CNC • 12/12 All off-the-shelf parts ordered by • 12/14 Housing prototypes made • 1/13 Pressure, light, and PCB testing complete • 2/18 Documentation complete (EDGE, tech paper, poster) • 2/20 Production of 8 units completed • 2/22 Final Project Review