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Team 11 – Poseidon. The Team. Simeon Eisen Jeff Overweg Aaron Maley Jacob VanderWall. Outline. The Problem Design Decisions Challenges Looking Back Looking Forward Acknowledgements Questions. The Problem. Pool maintenance is time consuming and easy to neglect
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The Team • Simeon Eisen • Jeff Overweg • Aaron Maley • Jacob VanderWall
Outline • 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 • 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
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 • Improved definition of goals (vision) • Improved budgeting • Corporate sponsorship • Start prototype building earlier
Looking Forward • 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