ECE 110/120 Honors Lab Section : SVEA - Security Via Environmental Analysis

NameNetIDSectionMajor
Marius Justonmjuston2110Systems Engineering
Ege Gunalegeg2120Electrical Engineering
Ayush Vikramavikram2110Computer Engineering
Alex Koscicakoscica2110Systems Engineering


Introduction:

Statement of Purpose:

"In 2016, there were 12,000 burglaries, which constituted 42% percent of all criminal incidents. Other commonly reported crimes included forcible sex offenses (8,900 incidents, or 31% percent of crimes) and motor vehicle thefts (3,500 incidents, or 12% percent of crimes). In addition, 2,200 aggravated assaults and 1,100 robberies were reported." (The NCES Fast Facts Tool Provides Quick Answers To Many Education Questions (National Center For Education Statistics))


Our project aims to create a dorm security system that is custom-built and cheap to help reduce the risk of burglaries. To do this we are planning to create an independent system that will monitor the dorm room for abnormalities through the use of cameras and other sensors.

Background Research:

Types of implemented dorm security measures:

TechnologyProsCons
SafesVery secure as long as you keep the PN safeExpensive
Security Cameras
  • Sends convenient notifications to the users
  • Stylish
  • Live stream and cloud recordings of events
  • Simple installation
  • Privacy concerns
  • Hacking
Lock Dorm Room DoorsHelps in case roommate forgets to close door

Might not be able to make holes/ screw things on doors

Laptop LockWorks well if you are trying to protect laptop
  • Only works for laptops
  • Needs to be attached to a solid base
Laser Security System
  • Requires very little effort to build
  • Hard to get through undetected
  • Cheap

Triggers at anybody


Getting Environmental Data from Sensors 

Sensor TypeCommunication ProtocolDescription
Day/Night vision cameraCamera-serial interface

Transfers pixel data to the microcontroller through several pins. Works with Raspberry Pi and has libraries available.

Temperature sensorI2C busRequires 2 wires; has libraries available for Raspberry Pi
Audio receiverAnalog voltageOutput rises and falls. The Raspberry Pi's clock speed is probably enough to do what we need it to do.
SpeakerAnalog voltageProbably needs a transistor or two to drive it with enough power.
Ultrasonic Sensoron/off ping outputDigital signal based on time. Not really a communication protocol, but it's understandable.


When creating sensors for DIY security systems, most people just utilize a camera and a Raspberry Pi; however, we wish to implement a larger variety of sensor arrangement to not only increase the alert system but also give you useful information about your dorm room, i.e temperature, if the lights are on or off, if the door is open or not, unlocked or not, etc...

Most common microprocessor to use for DIY projects:

  • Arduino
  • Raspberry Pi


Design Details:

Block Diagram / Flow Chart:


System Overview: 

The microprocessor will most likely be a Raspberry Pi. 


Parts:


Possible Challenges:

  • To successfully complete this project we will need to set up multiple libraries on a raspberry pi, which will prevent us from starting our project at a high pace.

  • Getting our software and hardware to work together might pose some challenges.
  • Sending a user notification
  • Setting up the thresholds to determine if an abnormality has occurred
  • Installation
  • Making everything work together
  • Image and Video Processing research


References


Revisions, 02 / 20 / 2020: 

Added some more background research on communication protocols for the sensors chosen and selected a temperature sensor to order. 

Attachments:

BlockDiagram (1).png (image/png)
BlockDiagram.png (image/png)
BlockDiagramNew.png (image/png)

Comments:

This seems like a solid idea. I'd recommend adding some research about the implementation of your system (ie. how to connect and use a particular sensor with your raspberry pi) to your proposal.

Posted by jamesw10 at Feb 15, 2020 19:39

Cool idea! How do you plan to analyze the data from multiple sensors? Moreover, how do you define abnormalities with your sensors? You will have to do more research on how image/video processing works as it would be the most challenging part of your project. You would also have to choose what temperature sensor you are using. Is an IR camera more like what you would need? I would suggest that you can start with the simpler sensors (ultrasonic, audio sensors), make sure the system works, then expand to more challenging sensors.

Posted by yuchenc2 at Feb 16, 2020 02:56

Looks good, you have done some good background research. As the others have said, take care to plan carefully how your sensors are going to connect and keep track of the various protocols used (I2C, serial, SPI, parallel, analog, etc)

Posted by fns2 at Feb 16, 2020 13:35

Seems like a great base, your organization and analysis of other systems is most likely going to benefit you. All the sensor stuff is something that you'll have to tinker with once you get your parts so make sure you submit parts requests ASAP.

Also, I would try to get 3-D printing out of the way as soon as possible. 

Posted by dbycul2 at Feb 16, 2020 22:30

Looks like a good project! Sensors may be difficult to get perfectly. Not sure why you need some (temp, distance).

I would look into adding things like Bluetooth (if their phone is detected to be near as someone is entering, it probably isn't a invasion). That being said, it may not be the direction you want to go with this (more software). 

Posted by weustis2 at Feb 16, 2020 23:07

Approved, Feb 20th

Posted by fns2 at Feb 20, 2020 19:11