LED Intelligent Lighting System Mid-Semester Presentation October 4, 2007.
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Transcript of LED Intelligent Lighting System Mid-Semester Presentation October 4, 2007.
![Page 1: LED Intelligent Lighting System Mid-Semester Presentation October 4, 2007.](https://reader035.fdocuments.in/reader035/viewer/2022062423/5697bf8d1a28abf838c8c105/html5/thumbnails/1.jpg)
LED Intelligent Lighting System
Mid-Semester Presentation
October 4, 2007
![Page 2: LED Intelligent Lighting System Mid-Semester Presentation October 4, 2007.](https://reader035.fdocuments.in/reader035/viewer/2022062423/5697bf8d1a28abf838c8c105/html5/thumbnails/2.jpg)
Team Members
Jeff Pike
Responsibilities: Team Leader, DMX Communication, Research, and Documentation
Major: Electrical Engineering
Ryan Foret
Responsibilities: LED Implementation, DMX Communication, Research, and Documentation
Major: Electrical Engineering
Matt Ladner
Responsibilities: Power Supply, Motor Implementation, Website Management, Research, and Documentation
Major: Electrical Engineering
Jeremy Scruggs
Responsibilities: Power Supply, LED Implementation, Motor Implementation, Research, andDocumentation
Major: Electrical Engineering
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Overview
Introduction Problem and Solution Technical and Practical Constraints Approach Timeline Summary Questions and Answers
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Introduction
Controller(Hardware/Software)
Lights(Move, Change Colors)
What is a Lighting System?
Amateurs Professionals
Hardware Controller
Software Controller
Stationary Lights
Automated Lights
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Introduction
ComputerSoftware
USB to DMXInterface
IntelligentLightingFixture
*NOTE -- DMX-512 Protocol is the industry standard communication for intelligent lighting systems
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Problem
Current Professional Lighting Systems Positives:
Create dynamic, multicolored showsLights move very quicklyUser can program entire shows
Negatives: Very expensive (software and light fixtures)Consume a lot of powerHeavy and bulkyUse incandescent bulbs which are fragile
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Solution
LED Intelligent Lighting System
Positives: Creates dynamic, multicolored showsLights move quicklyUser can program entire showsUses durable LEDsRequires much less powerVery competitive costsLightweight and compact
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Name Description
LED Intelligent Lighting System technical design constraints, adapted from [1]
Technical Constraints
The product must have a factory preset of 16 colors from apalette of approximately 16 million colors.
The light fixture must be able to pan 360° and tilt 180°.
The light must use less than 7.5 amps at 110/120 volts.
The product must communicate using the DMX-512 protocol.
The light must have 256 different levels of intensity from completely off to fully on.
Color Variation
Range of Motion
Current Draw
Compatibility
Light Intensity
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Type Name Description
Economic Cost Each fixture must manufacture under $500.00.
Health and Safety Safety The light fixtures must operate in a non-hazardous manor.
LED Intelligent Lighting System technical design constraints, adapted from [1]
Practical Constraints
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Practical Constraints - Cost
The LED Intelligent Lighting Fixtures mustmanufacture under $500.00.
Reasoning:• Be competitive in the market place• Affordable for more consumers
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Practical Constraints - Safety The light fixtures must operate in a non-hazardous manner.
How is this accomplished?Ground Fault ProtectionDurable Construction Low Heat Emissions
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Types of RS-485/DMX-512 Transceivers considered
Approach – Communication
• TI SN75176 and PIC18F24J10• Artistic Licence – AL4800
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Approach - LEDs
• Lamina Atlas LED
• Lamina Titan LED
• 50 Watt Incandescent
Types of Lights considered
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Approach - LEDs
Intensity Current
Draw
Retail Cost
Titan LED ~ 850 lumens ~ 4200 mA $90.00
Atlas LED ~ 250 lumens ~ 1575 mA $20.00
50 Watt [4]
Incandescent
~ 720 lumens ~ 4470 mA $35.00
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Approach – LED Drivers
Types of LED Drivers considered
• TLC 5940
• 4015 Boost Puck
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Approach – LED Drivers
Output
Channels
Output
Current
Total Power
Output
TLC 5940 16 0-120 mA 1920 mA
4015 Boost Puck
1 0-350 mA 350 mA
* LED Drivers operate at 5 VCC
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Approach – Motors
Types of motors used in motion control
• Stepping Motor– Motor that moves
in discrete steps
• Servo Motor– Consist of DC motor,
control circuit, gear reduction unit,
position-sensing device.
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Approach – Motors
Pros Cons
Stepper Motors
• Low cost• High torque at low speeds• Very rugged
• Can lose position• Lower torque at higher speeds
Servo Motors
• High intermittent
torque• High speeds• More reliable than stepper motors
• More expensive than stepper motors• Require feedback• Limited to 200 degrees of movement
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Timeline
ID Objective Duration Start Date Finish Date
1 Research 43 days Wed 8/1/07 Fri 9/28/07
2 Order Parts 30 days Mon 8/27/07 Fri 10/5/07
3 Implement Communication 19 days Fri 10/5/07 Wed 10/31/07
4 Implement LEDs 14 days Tue 10/9/07 Fri 10/26/07
5 Implement DC Motors 14 days Mon 10/8/07 Thu 10/25/07
6 Prototype Testing 21 days Fri 10/26/07 Fri 11/23/07
95%
80%
0%
0%
0%
0%
7/8 7/29 8/19 9/9 9/30 10/21 11/11 12/2June 21 August 11 October 1 November 21
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Summary
The LED Intelligent Lighting System:• Creates multi-colored light shows.• Cost efficient• Durable and lightweight
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References
[1] M. Ladner, R. Foret, J. Pike, and J. Scruggs “LED Intelligent Lighting System Technical and Pratical Design Constraints," unpublished.
[2] (3,Oct. 2007) handyboard.com. [Online] Available: http://www.handyboard.com/faq/display.php?key=dcservo
[3] National Instruments. “Motor Fundamentals” in National Instruments Developer Zone, Oct. 3, 2007. [Online]. Available: http://zone.ni.com/devzone/cda/tut/p/id/3656
[4] (4, Oct. 2007) donsbulbs.com. [Online] Available: http://www.donsbulbs.com/cgibin/r/b.pl/50w%7Cpar36%7Cst%7Cwfl%7C12v.html