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Team 10 - SHERPA

Team 10 - SHERPA. December 4, 2009 Calvin College ENGR 339 Senior Design. Outline. The Team Problem & Solution Recap Feasibility Design Norms Resources Major Achievements Current Status Next Steps Questions. The Team. Problem. Two main methods for hiker navigation:

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Team 10 - SHERPA

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  1. Team 10 - SHERPA December 4, 2009 Calvin College ENGR 339 Senior Design

  2. Outline • The Team • Problem & Solution Recap • Feasibility • Design Norms • Resources • Major Achievements • Current Status • Next Steps • Questions

  3. The Team

  4. Problem • Two main methods for hiker navigation: • Compass & Map • Handheld GPS • Both of these have their limitations • There are few devices which successfully overcome these limitations • Individuals get lost

  5. Solution • A handheld navigation device that does not require a GPS signal to determine position • Use inertial navigation techniques • The user will not become lost Sensors Memory Accelerometer Processor GPS Receiver Gyroscope LCD UI

  6. Feasibility: The Market • Average of 1.7 million “backcountry campers” in US National Parks every year over the last 5 years.1 • “More than 20% of the 93 million Americans who participate in hiking, backpacking, mountain climbing, and camping are enthusiasts who participate frequently.”2 • Over 3.7 million personal navigation units sold in Q2 2008 in the United States3 • http://www.nature.nps.gov/stats/viewReport.cfm?selectedReport=SystemMultiReport.cfm • http://www.activemarketinggroup.com • http://www.canalys.com/pr/2008/r2008081.htm

  7. Feasibility: The Design • Patent Research: Honeywell • Competition: American GNC’s Palm Navigator series • Sensor advancements geared toward consumer electronics

  8. Design Norms • Transparency • Report critical information to the user • Acknowledge limits of the design • Trust • Be reliable and accurate enough to be trusted • Caring • Save lives by preventing individuals from getting lost • Cultural Appropriateness • Appeal to outdoor enthusiasts

  9. Resources • Project from ENGR 315 - Control Systems • Project from ENGR 325 - Computer Architecture • DornerWorks • Component Suppliers • Mr. Ryan Rooks - HPERDS department • Mr. Tim Theriault - GE Aviation

  10. Major Achievements • Electronic component selection • Obtained evaluation board • Obtained accelerometers and gyroscopes • PPFS rough draft • Constructed a platform for data acquisition

  11. Data Acquisition Platform • Digitally communicate between the microcontroller and accelerometers • Microcontroller stores the data • Transfer data to a PC for algorithm testing and development

  12. Current Status • Further development of data acquisition platform • Build the algorithms for filtering the noisy data from the sensors • PPFS Revisions

  13. The Next Steps • Add gyroscopes into the data acquisition platform • Printed circuit board layout • Purchase components • Develop the algorithms to convert sensor readings to positions accurately

  14. Questions?

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