BMS Module For Lower Limb Powered Prosthesis – UROP Spring Symposium 2022

BMS Module For Lower Limb Powered Prosthesis

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Shaurya Gunderia

Pronouns: He/Him

Research Mentor(s): Robert Gregg IV
Co-Presenter:
Research Mentor School/College/Department: EECS / Engineering
Presentation Date: April 20
Presentation Type: Poster
Session: Session 6 – 4:40pm – 5:30 pm
Room: League Ballroom
Authors: Shaurya Gunderia
Presenter: 18

Abstract

In previous iterations of the Leg 2 from the LocoLab, an active prosthetic leg that takes in sensor data from the knee and ankle joints to bolster the natural gait of an amputee, the method to view the battery level on the leg was very rudimentary. Once the battery became low, an alarm would go off, telling both the researcher and patient that it was time to stop the experiment without letting them address certain problems that may have come up during the trial. Therefore, the goal of this project was to create a compact module that allowed for more precise battery readings for each of the four batteries and greater ease of use through Wifi control. Using an open-source simulator to test the circuits and Eagle CAD to design the physical circuit board, I was able to develop a module capable of signaling the individual battery level of four LiPo batteries connected in series powering the leg. This board acts as a shield for the ESP32, which is a Wifi capable board, allowing the battery level (Voltage) for each battery to be shown on the computer in real time. The lights on the shield signal green, yellow, and red, for high, medium and low battery, respectively. By minimizing current draw and providing much more precise readings for the level of each battery, not only has the ease of use of the leg been improved, but so has the quality of research being done.

Presentation link

Engineering, Interdisciplinary

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