Project

# Title Team Members TA Documents Sponsor
44 Dorm Door Locking Mechanism
 Brian Hoppe
Karan Usgaonkar
Thomas Orr
 Zhen Qin design_document0.pdf
final_paper0.docx
photo0.png
presentation0.pptx
proposal0.pdf
video
Karan Usgaonkar (usgaonk2)

Thomas Orr (tjorr2)

Mason Hoppe (bmhoppe2)

Problem:
Despite the University's best efforts there are still thefts from dorm rooms because people leave their doors unlocked when they aren't there.

Solution:
A project that I would like to propose is that of a new locking mechanism to help to solve the issue of dorm thefts. Currently, the biggest contributor to this problem is that people leave the doors to their rooms unlocked accidentally. To correct this problem our mechanism would lock the door whenever the door closes.

In addition, to counter the issues of accidentally leaving the room without your key and thus being locked out, we would add additional methods to unlock the door. A few ideas that we have for these would be to use a fingerprint scanner, an id card (icard) reader, and having a remote control to unlock the door. We would implement at least one additional unlocking mechanism and could require they work in tandem with each other (i.e. all of these additional methods are used together to unlock the door) or any one of these could unlock the door. The decision for this would be on the internal interface and would be used at the owner's discretion.

In order to aid in security of the door, the only things placed outside of the door would the the sensors used to unlock it and wiring sending input data to the back of the door. This is to prevent anyone from polling our hardware from the outside in order to find a way to send the correct unlock signal to break in.

Additionally, this project will not change any currently existing locking features of the door. Meaning, the door can still be unlocked and re-locked from the inside without issue and can still be opened using a key.

We expect the machinery used in this project to be battery powered and would include warning lights to indicate a low battery power. Should the power in the mechanism run out, the door will still be accessible with a key.

Current products on the market:
Currently the only similar versions of this project are permanent deadbolt replacements. Our project is made to be temporary and easily attachable/detachable.

Previous Versions of the project:
This project has been used previously in spring of 2016 especially. These projects were numbers 8, and 76. Our project is different from those previous projects because these primarily involved using your phone through a previously installed chip or some sort of web interface. We do not use either of these methods and instead focus on having the user interface attached entirely to the inside and outside of the door.

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.