Project

# Title Team Members TA Documents Sponsor
5 Bicycle Lighting System
 Jack Nelson
Quentin Mooney
Sloan Abrams
 Sanjana Pingali design_document1.pdf
proposal2.pdf
proposal1.pdf
# Project: Bicycle Lighting System
## Team:
Quentin Mooney (qmooney2)

Jack Nelson (jnels9)

Sloan Abrams (sloanaa2)

## Problem:
We are all cyclists, and feel road safety would be improved significantly by a robust lighting system to communicate with other cars, bikes, and pedestrians. Hand signals work decently well, but not everyone is confident enough on a bike to take a hand off their handlebars while riding. Hand signals are also significantly less effective at night when visibility is lower.

## Solution:
We want to design a control system for a bicycle lighting system. Headlights and taillights are already widely used, and in a lot of places required by law. We would like to expand upon that by adding brake lights that make the taillights brighter when the brakes are engaged, as well as turn signals so cyclists can signal their intended changes in directions more easily.

# Solution Components

## Brake System:
- Brake taillights that are automatically activated when the brakes are engaged. We plan to use the ALS31313 Hall Sensor in conjunction with a magnet on either the brake lever or brake calipers to sense brake engagement and trigger the brake lights

## Turn Signal System:
- Turn indicator lights on the front and rear of the bicycle
- Easy to use and access buttons or switches for the rider to turn on their signals
- Turn indicators automatically turn off after turn is complete (the same way a car's will). We will use an Inertial Measurement Unit ICM-42670-P for sensing when the turning action is completed .

## User controls/Interfacing
- The rider can see if their turn signals are on or off. This will either be accomplished by a small light indicator on the handlebars, or the turn indicators on the front of the bicycle will be positioned in such a way as to be visible to the rider.
- On/Off controls for the entire lighting system.

## General System
- Hazard lights (both turn indicators simultaneously) that can be turned on and off by the rider.
- Front headlights for visibility to other road users.
- On/Off controls for the entire lighting system.

## Power System
- Battery powered.
- Batteries are easy to remove and replace.

## Additional Stretch Goals/Possibilities:
- Ability to control brightness of lights / power conservation mode /brights.
- Bluetooth/wireless system.
- Rechargeable battery (super stretch goal: Dynamo powered).
- 'Auto' mode for the lights (automatic daylight sensing).
- Automatically turn off whole system if bike has been inactive for 15+ min and lights were accidently left on. Using IMU sensor for motion detection.


# Criterion for Success:
- Rear brake lights activate when brakes are engaged.
- Turn signals turn on when activated by the rider, and automatically turn off after the turn is complete (for turns of 90 degrees or sharper.)
- Headlights on bike. They are bright enough to be seen at night from at least 25 yards away.
- Rear taillight is always on when system is on.
- Entire system can be turned on and off by the rider.

Electronic Replacement for COVID-19 Building Monitors @ UIUC

Patrick McBrayer, Zewen Rao, Yijie Zhang

Featured Project

Team Members: Patrick McBrayer, Yijie Zhang, Zewen Rao

Problem Statement:

Students who volunteer to monitor buildings at UIUC are at increased risk of contracting COVID-19 itself, and passing it on to others before they are aware of the infection. Due to this, I propose a project that would create a technological solution to this issue using physical 2-factor authentication through the “airlock” style doorways we have at ECEB and across campus.

Solution Overview:

As we do not have access to the backend of the Safer Illinois application, or the ability to use campus buildings as a workspace for our project, we will be designing a proof of concept 2FA system for UIUC building access. Our solution would be composed of two main subsystems, one that allows initial entry into the “airlock” portion of the building using a scannable QR code, and the other that detects the number of people that entered the space, to determine whether or not the user will be granted access to the interior of the building.

Solution Components:

Subsystem #1: Initial Detection of Building Access

- QR/barcode scanner capable of reading the code presented by the user, that tells the system whether that person has been granted or denied building access. (An example of this type of sensor: (https://www.amazon.com/Barcode-Reading-Scanner-Electronic-Connector/dp/B082B8SVB2/ref=sr_1_11?dchild=1&keywords=gm65+scanner&qid=1595651995&sr=8-11)

- QR code generator using C++/Python to support the QR code scanner.

- Microcontroller to receive the information from the QR code reader and decode the information, then decide whether to unlock the door, or keep it shut. (The microcontroller would also need an internal timer, as we plan on encoding a lifespan into the QR code, therefore making them unusable after 4 days).

- LED Light to indicate to the user whether or not access was granted.

- Electronic locking mechanism to open both sets of doors.

Subsystem #2: Airlock Authentication of a Single User

- 2 aligned sensors ( one tx and other is rx) on the bottom of the door that counts the number of people crossing a certain line. (possibly considering two sets of these, so the person could not jump over, or move under the sensors. Most likely having the second set around the middle of the door frame.

- Microcontroller to decode the information provided by the door sensors, and then determine the number of people who have entered the space. Based on this information we can either grant or deny access to the interior building.

- LED Light to indicate to the user if they have been granted access.

- Possibly a speaker at this stage as well, to tell the user the reason they have not been granted access, and letting them know the

incident has been reported if they attempted to let someone into the building.

Criterion of Success:

- Our system generates valid QR codes that can be read by our scanner, and the data encoded such as lifespan of the code and building access is transmitted to the microcontroller.

- Our 2FA detection of multiple entries into the space works across a wide range of users. This includes users bound to wheelchairs, and a wide range of heights and body sizes.