ECE 110/120 Honors Lab Section : 2-Factor Remote Door Unlock Authentication

Created by Bhargava, Kunal, last modified by Narayanan, Rohit on Sep 26, 2019

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NameNetID
Rohan Prasadrprasad3
Kunal Bhargavakunalb4
Rohit Narayananrohitn2



  1. Introduction
    1. Statement of Purpose:
      Our project aims to improve the security of traditional door locks using two factors of authentication. Currently, many door locks are only able to be opened by keys. Often times, previous homeowners may have copies of keys or people may be able to pick the lock using various methods. Our solution to this issue is to require two forms of authentication when unlocking a door. The first is a key FOB, similar to one on a car key chain, that recognizes when the owner is near the door, and the second is a finger-print scanner which will allow the owner into the house if the print matches the print of the owner. We aim to build a remote radio keyless system, and successfully implement a system that stores and recognizes fingerprints effectively.
    2. Background Research:
      We learned the basics of how our system could be set up through our background research. We found components that can hopefully be connected to achieve the purpose of this project. A low-price fingerprint scanner, a deadbolt, and two Arduino Uno's to serve as a remote keyless system. The proximity sensing must be implemented first before the fingerprint sensor, as shown by the flow diagram below. As long as the proximity sensor is always checking for the FOB in range, the system should work as intended. Through the parts list below, we believe that we'll be able to implement the desired functionality in the time frame allotted.

      Remote Proximity Door Lock on a Lexus IS
  2. Block Diagram:
  3. Parts:
    1. 2 Arduino Nano Devices
    2. 3-D Printed Key FOB Case
    3. AND Gates
    4. OR Gates
    5. Capacitors
    6. Transistors

  4. Possible Challenges:
    If this is implemented in the outdoors on the main entrances to houses, weather becomes an issue. The device would have to be made completely water and snow proof and be able to withstand high temperatures. For prototyping purpose, this isn't necessary, but if this product is to be scaled to commercial applications, this weatherproofing must be implemented.

  5. Resources:
    http://www.biolinksolutions.com/technology/fingerprint.php
    https://www.youtube.com/watch?v=DO7bempD3qM
    https://www.amazon.com/Biometric-Fingerprint-Password-110-240V-Professional/dp/B01MECDGDY
    https://www.infosec.gov.hk/english/technical/files/rfid.pdf


Attachments:

BlockDiagram1.PNG (image/png)

Comments:

I like the main idea behind your project (having both a fob and a biometric key to unlock the door).

Have you had a chance to think of how you will implement the fob aspect of the project? Were you thinking RFID?
Posted by chorn4 at Oct 03, 2019 11:43

I also like the idea, but you do not specify how you will implement the proximity sensing aspect of the lock.

In addition, your "block diagram" is not a block diagram. Your block diagram must show the physical components of the system and how they communicate, interact, and/or are connected. Please amend you diagram and/or specify how the proximity system will be implemented.
Posted by fns2 at Oct 03, 2019 17:46