Transcript Team 11 – Poseidon The Team • • • • Simeon Eisen Jeff Overweg Aaron Maley Jacob VanderWall.

Team 11 – Poseidon
The Team
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Simeon Eisen
Jeff Overweg
Aaron Maley
Jacob VanderWall
Outline
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The Problem
Design Decisions
Challenges
Looking Back
Looking Forward
Acknowledgements
Questions
The Problem
• Pool maintenance is time consuming and easy to
neglect
• There are systems available, but… they are costly
and often are not convenient
• An inexpensive, effective system would make the
lives of pool owners simpler and create more time
for proper leasure
Design Decisions
• Electronics: Processors and Communication
• Atmel ATmega 644p & Atmel ATmega 328
• ZG2100 – 802.11b wireless interface chip
• Graphic LCD with touch screen overlay
• Electronics: Mechanical Control
• Stepper Motors: 5VDC, Half H-Bridge drivers with step
determinant logic
• Solenoid Valves: 12VDC, Half H-Bridge driver
• Pool Recirculation Pump: 120 VAC, Relay
Design Decisions
• Granule Dispensing
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PVC Pipe
3 Stepper motor driven feed screws
Solenoid valve channel switching
Anti-backflow valves
• Sensing
• Aquarium grade pH and ORP sensors
• Diversion chamber with light turbulent flow
• Op Amp/Instrumentation amplifier with running
average data filtration
Working Components
Dispenser Output Data
Dispenser Output Mass vs. Auger Rotation
1000
y = 19.562250x
R² = 0.999996
900
800
Output Mass (grams)
700
600
500
Mass (g)
Linear (Mass (g))
400
300
200
100
0
0
5
10
15
20
25
Rotations
30
35
40
45
50
Challenges
• Stepper control circuit
Challenges
• Wi-Shield documentation
• Trial and error
• Undocumented disabled pins
• Rigorous Testing and research
• Router differences
• Incorporate instructions in user manual
Looking Back
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Improved definition of goals (vision)
Improved budgeting
Corporate sponsorship
Start prototype building earlier
Looking Forward
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Improved wireless capabilities
More memory for server
Incorporate Ethernet
Ball valve vs. solenoid valve
Shock factor!
Visual / Audible warning indicators
Larger screen
Acknowledgements
• Tim Therault – Industrial Consultant
• Prof. VanderLeest – Team Advisor
• Brian Honeck, Eric Walstra, Darryl DeBruin –
CEAC Reviewers
• Bob DeKraker – Parts Ordering
• Phil Jasperse – Shop Help
Questions?