Transcript MDR Slides

MDR 2011 – Team Gong
Presentation by:
Andrew Frieden
Matthew Weydt
Nick Setzer
Tyler Dunn
Electrical & Computer Engineering
Presentation Overview
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PDR Feedback
Back to the Drawing Board…
New Requirements
New Design
New Components
Alternative Designs
Spending
Testing
Project Management
Future Development and Timeline
Demo
Electrical & Computer Engineering
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PDR Feedback
 Lack of / Unclear Application
 Poor wireless transmission near water
 No longer near water
 How do we plan to demo this?
 How do we test this?
Electrical & Computer Engineering
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Back to the Drawing Board
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Same general device, new application
We consulted with our advisor
We came up with a solar energy sensor and calculator
Current calculations for solar panel installations
• Very accurate, within ~5-6% of actual power with weather
and shading calculations
• Industry standard tools like the Solmetric Suneye and
PVWatts.com
• Design and installation can be very expensive
 Our new device will give real time data, optimization, and
dollar value feedback to the customer
 Our device will attempt to be just as accurate but be a new
cheaper technology alternative
Electrical & Computer Engineering
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Lack of / Unclear Application
 Solar power can be expensive
• Know the power savings prior to installation
• Incentive to install solar panels
 Uncertainty of efficiency
• Performance is rated under standard test conditions irradiance
and temperature
 Uncertainty of optimal product to purchase
• Calculator will rate multiple products on the market for the
user’s reference
 Errors in Placement and Orientation
• Actual test data will show better placement and orientation
 Eyesore to the community
Electrical & Computer Engineering
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How do we plan on demoing this?
 Downloadable android application
which we will also have on display
 Sensor will real time update our
phone and calculator
 Users can see the power and
money that could be saved by the
ambient light in the room and a
flashlight
 Increase sensor and transmission
rate for demo
Electrical & Computer Engineering
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New Requirements
 Low Power, maximum of 5v peak operating with
drawing no more than 2A from our power supply
 Android Application for calculating best performance
of static solar panel, graphically displaying sensor
data and a good estimate to dollar value saved by a
user on a monthly basis
 A hardware device capable of processing and
transmitting sensor data to the internet
 A sampling and transmission cycle that consumes
less power than can be recharged via our solar panel
 A sensor array able to accurately sense light intensity
of the sun in a potential spot for solar panels
Electrical & Computer Engineering
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New Design (Pyranometer Array)
 13 sensors
 Silicon Photodetectors
 Temperature sensor for solar efficiency
Electrical & Computer Engineering
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New Design Continued.
 Pyranometer array on half sphere
• Uses many sensors to measure irradiance
• Irradiance is used to calculate electrical efficiency of
solar panels
• Pyranometers act as control points to find an optimal
direction for solar panel
Electrical & Computer Engineering
http://www.instesre.org/construction/pyranometer/pyranometer.htm
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New Design Continued.
 Application will have calculator to do most/all of
the data processing
• Energy calculations for electrical efficiency from
irradiance
• Optimal direction algorithms
Electrical & Computer Engineering
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New Components
 Seeeduino Stalker v2.1
• Real time clock
• MicroSD card socket
• Low power ~ 3.3 or 5v IO ports
 Light Sensor Array
• Silicon Photodetector
 Grove Mega Shield
• Large amount of digital and analog IO sockets for
sensor array
Electrical & Computer Engineering
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Timeline
Electrical & Computer Engineering
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Spending
 Current spending total to date: ~$250
 Money left to date:~$250
 Estimate for production value for unit:~$100$150
 Current market technology: 6-8 design hours,
digital image processing units (example
Solmetric Suneye) ~$2000
Electrical & Computer Engineering
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Testing
 This semester:
• Power supply system meets voltage specs
• Successfully charge batteries and power board
• Software functionality tests, updates in database are
reflected in graphing software
 Next semester:
• Full system integration testing
• Flashlight for point light tests, directional awareness of
device
• Pspice modeling photovoltaic systems
• Industry equipment like digital image processing
camera if we can borrow (would be too expensive to
purchase)
Electrical & Computer Engineering
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Project Management
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Andrew Frieden, CSE:
• Android Application development
• Money saving, power saving and direction of optimal solar panel algorithms
• Web Designer
Matthew Weydt, CSE:
• PHP Web Server development
• MySql Server development
• Arduino programming
• GPRS programming
Nick Setzer, EE:
• Solar panel step down converter
• Power supply system
• Assist Arduino programming
Tyler Dunn, EE:
• Sensor testing and Integration
• Device construction
• Power system design and testing
• Assist Arduino and GPRS programming
Electrical & Computer Engineering
15
Deliverables for next time
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Full sensor array
Transmission
Basic power calculations
Better Graphing Software
Electrical & Computer Engineering
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Demo
 Arduino sensor
 Android Application
 Power supply system
Electrical & Computer Engineering
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