Project

# Title Team Members TA Documents Sponsor
66 Item-Tracking Backpack
Abdullah Alfaraj
Raef Almuallem
Surya Vasanth design_document1.pdf
final_paper1.pdf
photo1.jpeg
photo2.jpeg
presentation1.pdf
proposal3.pdf
video1.mp4
# Item-Tracking Backpack

# Team Members:

Abdullah Alfaraj (alfaraj3)

Raef Almuallem (raefma2)

# Problem

Many people use backpacks to store their belongings when going out. Since backpacks can hold many items, it can be easy to lose track of what has been put in it. The act of checking the bag to ensure nothing has been forgotten can often be inconvenient. This becomes especially time-consuming when many items have been placed in the backpack. Keeping track of where each item has been placed can also be a hassle for smaller items or when there is a large number of items in the bag.

# Solution

A system for monitoring the items present in the backpack using RFID can be implemented as a solution. Users can input the items they plan on placing in the bag using a phone application. RFID tags can be placed on these items, and once all of the items listed have been detected, a green LED will light up to indicate that nothing has been forgotten. Moreover, to assist with keeping track of the items within the bag, the user will be able to specify where a specific item will be placed. A red LED will light up to indicate that a compartment does not contain the exact items desired.

# Solution Components

## Subsystem 1: Sensors

This subsystem will deal with detecting the items present in the bag. RFID will be used to monitor each individual item present.

## Substyem 2: Microcontroller

The microcontroller will interface with the RFID sensors to determine which items are present, and whether all items have been placed. It will turn on the green LED and turn off the red LEDs when all items are present.

## Subystem 3: Indication

A 10 mm green LED will be used to indicate if all the items the user was planning on placing in the backpack are present. The LED will light up once the RFID has detected all the desired items to inform the user that nothing has been forgotten. A 10 mm red LED will be used for each compartment, and it will light up if the RFID could not detect a desired item in the compartment.

## Subsystem 4: Application

The application will allow users to create a list of items to be placed in the backpack. Items can be added and removed from the list and any items missing will be displayed. The application will also allow for the organization of the items in the bag by allowing the user to add items to a given compartment.



# Criterion for Success

Green LED lights up when all the desired items have been placed, otherwise, it is off

Red LEDs light up if items are missing from a given compartment

Two compartments capable of storing large items properly track the items contained in it

One compartment capable of storing small items properly tracks the items contained within it

The application allows for the list of items to be placed in the backpack to be changed

The application allows for the organization of the items to be placed in different compartments

The application recommends missing items or items placed in an incorrect compartment

Dynamic Legged Robot

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Featured Project

We plan to create a dynamic robot with one to two legs stabilized in one or two dimensions in order to demonstrate jumping and forward/backward walking. This project will demonstrate the feasibility of inexpensive walking robots and provide the starting point for a novel quadrupedal robot. We will write a hybrid position-force task space controller for each leg. We will use a modified version of the ODrive open source motor controller to control the torque of the joints. The joints will be driven with high torque off-the-shelf brushless DC motors. We will use high precision magnetic encoders such as the AS5048A to read the angles of each joint. The inverse dynamics calculations and system controller will run on a TI F28335 processor.

We feel that this project appropriately brings together knowledge from our previous coursework as well as our extracurricular, research, and professional experiences. It allows each one of us to apply our strengths to an exciting and novel project. We plan to use the legs, software, and simulation that we develop in this class to create a fully functional quadruped in the future and release our work so that others can build off of our project. This project will be very time intensive but we are very passionate about this project and confident that we are up for the challenge.

While dynamically stable quadrupeds exist— Boston Dynamics’ Spot mini, Unitree’s Laikago, Ghost Robotics’ Vision, etc— all of these robots use custom motors and/or proprietary control algorithms which are not conducive to the increase of legged robotics development. With a well documented affordable quadruped platform we believe more engineers will be motivated and able to contribute to development of legged robotics.

More specifics detailed here:

https://courses.engr.illinois.edu/ece445/pace/view-topic.asp?id=30338

Project Videos