p08456: underwater l.e.d. light for an r.o.v
DESCRIPTION
P08456: Underwater L.E.D. Light for an R.O.V. Jeremy Schiele Benoit Hennekinne Ryan Seeber Jonathan Lent Justin VanSlyke. User Input. Micro-Controller. USB Converter. LED Driver. Light Output. Temp. Sensor. Power Board. Light Unit Architecture. LEDs. Signal Feedback Power. PWM. - PowerPoint PPT PresentationTRANSCRIPT
P08456:P08456:Underwater L.E.D. Light Underwater L.E.D. Light
for an R.O.Vfor an R.O.V
Jeremy SchieleBenoit Hennekinne
Ryan SeeberJonathan Lent
Justin VanSlyke
Light Unit Light Unit ArchitectureArchitecture
User Input G.U.I.
USB Converter
Micro-Controller
LED Driver
Temp. Sensor
Power BoardBattery
LEDs
Light Output
Signal
Feedback
Power
24 V
5 V
USB RS485
PWM
Design ImplementationDesign Implementation
Lens
Snap-ring
O-Ring
Lens Cap
O-Ring LED Board Driver Board
μC Board
Power Board
Bullet Housing
Bulkhead Connector
Standoffs x 9
Design SpecificationsDesign SpecificationsSpec
#Customer
Need #Design Specification
Importance (1 < 5)
Unit of Measure
Marginal Value
Target Value
Final Design Value
1 3 Low wattage LED system 5 watts/ fixture 10 53.30 @ 350 mA (12
max)
2 3Low heat generation from LEDs 5 watts/ fixture 2.8 1
2.41 @ 350mA (7.65 max)
3 1, 2 Luminous flux 5 lumen/ fixture 250 350300 @ 350 mA (675
max)
4 2 Multi-spectrum light 3 NAWhite + 1
colorWhite + 2 colors White + 1 color
5 5, 6 Enclosure size 4 in x in x in 3x3x6 2x2x4 2.75 dia x 4.5
6 6, 7Assembly/Disassembly mount 3 sec 90 60 TBD
7 8 Microcontroller voltage 4 volts 5 3.3 5
8 8 Board Voltage 4 volts 5 3.3 5
9 8 LED Voltage Power 4 volts 24 7.6 24 (driver) 3.15 (LED)
10 1 LED Current 5 amp 1 0.7 1
11 10Submergible (water tight seals) 5 ft 400 500 500 est.
12 10 Pressure resistant 5 psi 170 216 216 est.
13 4Preservation of open architecture 4 y/n y y y
14 9Preservation of open source system 4 y/n y y y
15 8Lights & thrusters controlled by 1 software package
5 y/n y y TBD
Testing ResultsTesting Results
Spec # Design Specification Marginal Value Testing Result Pass/Fail Spec Met
1 Low wattage LED system 10 W 7.004 W PASS Marginal
2 Low heat generation from LEDs 2.8 5.6 W (max.) FAIL NA
3 Luminous flux 250 lm 510 lm PASS Target
4 Multi-spectrum light White + 1 color White + 1 color PASS Marginal
5 Enclosure size 3x3x6 2.75 dia. x 4.5 in. PASS Marginal
6 Assembly/Disassembly mount 90 20 PASS Target
7 Microcontroller voltage 5 V 5 V PASS Marginal
8 Board Voltage 5 V 5 V PASS Marginal
9 LED Voltage Power 24 V 24 V PASS Marginal
10 LED Current 1 0.350 V PASS Target
11 Submergible (water tight seals) 400 ft 920 ft PASS Target
12 Pressure resistant 170 psi 400 psi PASS Target
13 Preservation of open architecture y Y PASS Target
14 Preservation of open source system y Y PASS Target
15Lights & thrusters controlled by 1 software package y Y (expected) TBD NA
Multi-spectral CapabilitiesMulti-spectral Capabilities
Final LED Choices:
Cree XR Cool White
Lucille's Rebel Green
Luminous FluxLuminous Flux
• Tested illuminance (lux), converted to Luminous Flux (lm) using one steradian area.
Radius=20 in.
Steradian= 400 in2
Further TestingFurther Testing
• Final sequences to be completed– Test to assure software is capable of
operating thruster and light unit
Insert GUI Screen Shot Here