STEM II: Assistive Technologies

Problem Statement:

An individual with a brain injury has difficulty navigating their home in a manual wheelchair due to impaired vision.

Design Approach:

We approached the problem by combining a few of our preliminary ideas. We attatched to sonar (HC-SR04) sensors to the footrests, which in turn connect to a left and right vibrating wristwatch. This allows the user to know which side the obstacle is on. We also incorporated a LiDAR scanner above the user, which allows them to avoid walls and other tall obstacles. All data is represented through vibrations, to account for the visual impairment of the client.


Below are images of our final prototype. You can see the sonar, LiDAR, and vibrating module components.

Prototype Prototype
Prototype Prototype Prototype Prototype