Project

# Title Team Members TA Documents Sponsor
55 Glove For Programmable Prosthetic Hand
Quang Nguyen
Ryan Metzger
Sohil Pokharna
Sainath Barbhai design_document1.pdf
final_paper1.pdf
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presentation1.pdf
proposal1.pdf
video
Project Title: Glove For Programmable Prosthetic Hand


Team Members:
- Quang Nguyen quangpn2
- Sohil Pokhara sohilp2
- Ryan Metzger rtm4


Problem

Modern robotic prosthetics may achieve fine motor control through predefined hand motions encoded into the prosthetic. Modern prosthetics may have the ability to save
preset positions but don’t have the ability to adjust and tweak positions on the fly. We plan to implement a hardware/software solution that is able to measure the positions of a functional organic hand and translate this motion into a prosthetic hand in order for this prosthetic to mimic this motor control on the move. With features such as mirroring we are able to have 2 hands, 1 organic and simulated prosthetic, we are able to introduce a level of dynamic programmability. Also introducing multiple preset positions through organic hand gestures, the user can recall most used positions for convenience. By adding sensors to individual fingers, we can combine combinations of gestures in order to control the prosthetic beyond mirror mode and be able to change the preset positions using these gesture controls.

Solution
We propose to create a glove with flex sensors and hall effects that can measure the motion of the fingers and detect gestures that the user gives. From this the user can then control a robotic hand with their organic hand making it easier to adjust position as well as record motions for the robotic hand to execute.

Subsystem 1: Processing/Communication Unit
Microcontroller -
Responsible for interpreting sensor data from the gesture detection unit. Also supplies voltage to the sensors.
Flash Memory -
Store the recallable positions when the glove is turned off.
Bluetooth-
Used to relay microcontroller commands to the hand.

Subsystem 2: Motion/Gesture Detection Unit
Flex Sensors-
Used to measure the positions/motion profile of each finger.
Hall Effect Sensors
Used for gesture control to recall preset positions, program new positions, and activate various modes such as mirroring. Magnet on thumb, hall sensors on tip of digits creating 4 digital inputs.

Subsystem 3: Power
Battery-
Provides power to the entire system.
Power Regulation-
Provides regulated voltages to other components


Subsystem 4: Physical/Digital Hand
Used to demonstrate capabilities of a project. Usure if using a digital model or a physical model.
Digital Approach- 3D Modeling Software(Unity) with access to computer

Physical Approach- Continuous Servos, 3D Printed Parts, String

Criterion for Success:

The sensing glove is able to recognize and relay the accurate position of each digit, then the microcontroller is able to interpret and control the prosthetic.
The sensing glove is able to relay and the controller can recognize individual gestures used for control of the prosthetic hand such as recalling predefined positions, activating various modes(mirror, programming, etc), various other functions of the hand such as power down etc.

Demo Video : https://youtu.be/7oDK8qUUqnE

Electricity-Generating Device Retrofitted for Spin Bikes with Wall Outlet Plug Connected to Gym's Grid

Raihana Hossain, Elisa Krause, Tiffany Wang

Electricity-Generating Device Retrofitted for Spin Bikes with Wall Outlet Plug Connected to Gym's Grid

Featured Project

**Elisa Krause (elisak2), Raihana Hossain (rhossa2), Tiffany Wang (tw22)**

**Problem:** Something we take for granted everyday is energy. Constantly, there is energy consumption in malls, offices, schools, and gyms. However, the special thing about gyms is that there is always someone using either the elliptical, bike or etc. Now what if, along with losing those extra pounds, you can also generate some electricity using these machines? Our device is a straightforward and cheap alternative for gyms to have retrofitted spin bikes that generate electricity, and for the gym to save money by using the electricity generated by the bikes that can be connected to the gym’s grid by simply plugging the device into the wall outlet.

**Solution Overview:** We are retrofitting a spin bike with an electricity-generating device that can be plugged into the wall outlet, which will be the path to send the generated electricity back to the gym’s grid to be used. The amount of electricity generated can also be monitored and displayed with the device.

**Solution Components:**

* **[Retrofit for Electricity Generation]** Component that attaches to any spin bike on the outside (straightforward and simple retrofit) and generates electricity when the bike is being used.

* **[Send Power to Gym Grid]** Component that reverses the typical direction of the wall outlet and sends the energy generated by the bike riders back to the gym’s power grid.

* **[Metering]** Component that records and displays how much energy was generated between the times when someone presses a button on the device. The first button press will reset the display. The second button press will show how much energy was generated from the time when the button was first pressed.

**Criterion for success:**

* Retrofits any (or the majority of) spin bike types

* Energy generated from people working out on the spin bikes is sent from a wall outlet to the gym’s power grid

* Device displays the power generated by a bike during the time of two button presses.

* Show that our power output being generated matches and syncs up with a sinusoidal input using a mock setup to simulate the grid

Project Videos