Logan InvenTeam Work Night 11.1.18

Logan InvenTeam Work Night

Date: 11.1.18

Location: Logan HS

Time: 4:45-7:00 PM

DATE: November 1^st, 2018

TIME: 4:45 - 7:00 (2.25 hours) Tony Perry Meeting 9:00-10:30 AM (1.5 hours)

People Who Attended:

Alex Magnuson, Seth Peterson, Dale Lawrence . Caitlin Coffey, Austin Sather, Tanner Boge, Joel Stevens. Thaying Vang, Avery Schams , Thomas Kujak

Tony Perry Meeting in AM:

Tony Perry brought up good point today in asking if it were possible to create a management device that would control the amount of energy the Bluetooth module uses.

Perhaps we could investigate devices similar to an accelerometer that would put our management interface to "sleep" when the person was sitting down and not moving. This would save a great deal of energy.

I think this is something we could build in on the hardware and software side. See link below:

https://learn.sparkfun.com/tutorials/accelerometer-basics/all

Research Meeting for Prosthetic Limb - Lemelson MIT InvenTeam submitted by: Austin Sather

Today the software team worked on figuring out our bigger picture. Mr. Foye gave us some good ideas on what to look at for the software end of the project. After that, Joel and I(Austin) worked on getting the Pi zeros working. I was able to get the UI onto the monitor. Next time, I will have to learn more about the Pi and the different components that it provides. I want to see how the GPIO pins work and a get a good idea on how the programming language(Python) works with said pins. Catlin researched programming languages for the app. She also looked at the feasibility of using Apple versus Google Play. She found that we are leaning more toward Google Play for the app. It is a one time fee of $25 and the acceptance is very quick and easy to do.

Hardware Journal Submitted by: Alex Magnuson

Today the hardware team learned about conservation and loss of energy, gears and energy conversions. There is a “budget” in energy production within our system because too much resistance would result in a change in the way of walking. The key forces include movement, force, velocity and feel. We should look into specific motors/generators and begin to get some numbers of how much power is produced at how many RPMs of the shaft. RPM can be calculated with a technique of painting half of the shaft one color and using a tachometer or other methods. In any process there is always energy lost normally in the form of heat so the more processes we have the more energy will be lost (gears, levers, generator, storage, conversion, battery). It was also learned that the more load there is on a generator the more energy is required to start the movement of the generator.

Tony Perry meeting with the team to answer questions.

Students working on the problem at a work night.

Hard at work?? :-)