iDrive Safe
What if there were a device that would only allow you to drive if you are sober? Safer? Yes. Most efficient? We are trying to figure that out.
Team: Here is us working past 11 pm together in our prototype.
Background: One of our team members once heard from a friend that works in the N.C. Department of Transportation that it would be an nice idea if we could have a device that only allows drivers to drive if they are sober. As a team, we discussed it and really liked the idea! So we did our best to prototype it as our senior capstone project.
Overview: The design consists of two main modules. The main box guides the user through profile selection and creation, as well as perform all tests. It ultimately communicates the result of the tests via bluetooth to a separate box that contains the key to a steering wheel lock. The key box receives the flag and automatically unlocks the box.
Key Specifications:
Evaluates blood alcohol content (BAC).
Tests user's drowsiness.
Disable vehicle via wireless connection.
Enables personalized profiles.
Includes speech detection and voice recognition.
Text-based user interface.
(Bonus) Provide coordinates to the closest public transport options
My Responsabilities:
Build and code a sensing circuit to accurately detect differences in BAC.
Build and code visual and audio tests to measure reaction speeds.
Build and code a Bluetooth-based triggering system between both boxes of our design.
Design part of the user interface that included text output via a LCD.
Organize and clean the final code.
Troubleshoot other parts of the device.
Optimize our circuit through soldering components to a protoshield.
Assemble all parts together for the main box
Manage the progress of individual tasks and overall progress of our project.
Results:
The interface of the main box:
Hardware architecture:
Software Architecture:
And here is a video about our design guided by the awesome Kristen Angell:
Takeaway: This was a very fun project to be involved with. The team was very involved and caring, and the project was an exciting challenge to take in our senior year. I learned a lot from the many challenges we had which ranged from understanding parts I never worked with to leading the team through some problems with our design. It was awesome to see our team create a unique product from scratch.