Project

# Title Team Members TA Documents Sponsor
75 Improving upon ECEB Submetering
Aleksai Herrera
Jonathan Izurieta
Mike Lee
 Sanjana Pingali design_document2.pdf
final_paper1.pdf
other3.pdf
other1.pdf
other2.pdf
proposal2.pdf
video
#ECEB SUBMETERING

Team Members
-Aleksai Herrera (aleksai2)
-Jonathan Izurieta (jji11)
-Mike Lee (dcl3)

Our RFA is based on Prof. Schuh’s proposal for a 3-phase, 208V, 60Hz power meters that can be placed inside individual rooms for detailed power monitoring.

#PROBLEM
The ECEB is notably a net-zero energy facility, which is possible due to utilization of energy efficient methods such as the use of solar panels. We would like to be able to measure and share data collected from the energy generated by the solar panels in order to help track the efficiency and use of energy of the ECEB building. With regard to the ECEB submeter of previous semesters, we would like to improve upon the accuracy of the data recorded to yield more practical and useful results.

#SOLUTION
Our solution is to create power meters that can accurately measure power, voltage, and current of individual rooms within ECEB and be able to accurately get and store these data metrics as well as being able to display them to either an LCD or the TVs within the ECEB. We plan to improve upon many of the shortcomings the previous implementation faced.


#SOLUTION COMPONENTS
##Subsystem 1: Power System
This system is required for powering the IC's, microcontroller, and LCD along with any other components of our project.

Chargeable Battery (5 to 10V)
Linear Regulator (Buck Convertor) MC34063AP

##Subsystem 2: Sensor/Electricity measurements
This system will allow the received AC signals to be changed into DC digital signals that the microcontroller can interact with.

ADC converters for current and voltage MCP3008-I/P
Voltage Transformer
Voltage Divider Circuit
Voltage Pull Up
Current Transformer CTF-5RL-0400
Current Divider Circuit
Current Pull Up

##Subsystem 3: Storing Information
Our design intends to store information offline onto a SD card and onto an online server
Microcontroller to Display and data recording System:
ESP32 Microcontroller used to transmit recorded data offline to SD card and to online server.
SD card module to interface SD card and ESP32
SD card to store data on
A cost effective online server or database to store our data

##Subsystem 4: Visual display of our data
This system allows us to display our data onto a screen to display to the viewer.

Usbc to HDMI to display information on a TV
LCD screen to display data onto

#CRITERION FOR SUCCESS
Be able to store our data offline on to SD card along with the date and time
Be able to upload our data online every 15 minutes via wifi
Be able to display data and waveform on LCD or TV
Be able to measure Voltage, Current, Power, and other key data metrics (Power Factor, etc.)

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.