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

Master Bus Processor

Clay Kaiser, Philip Macias, Richard Mannion

Master Bus Processor

Featured Project

General Description

We will design a Master Bus Processor (MBP) for music production in home studios. The MBP will use a hybrid analog/digital approach to provide both the desirable non-linearities of analog processing and the flexibility of digital control. Our design will be less costly than other audio bus processors so that it is more accessible to our target market of home studio owners. The MBP will be unique in its low cost as well as in its incorporation of a digital hardware control system. This allows for more flexibility and more intuitive controls when compared to other products on the market.

Design Proposal

Our design would contain a core functionality with scalability in added functionality. It would be designed to fit in a 2U rack mount enclosure with distinct boards for digital and analog circuits to allow for easier unit testings and account for digital/analog interference.

The audio processing signal chain would be composed of analog processing 'blocks’--like steps in the signal chain.

The basic analog blocks we would integrate are:

Compressor/limiter modes

EQ with shelf/bell modes

Saturation with symmetrical/asymmetrical modes

Each block’s multiple modes would be controlled by a digital circuit to allow for intuitive mode selection.

The digital circuit will be responsible for:

Mode selection

Analog block sequence

DSP feedback and monitoring of each analog block (REACH GOAL)

The digital circuit will entail a series of buttons to allow the user to easily select which analog block to control and another button to allow the user to scroll between different modes and presets. Another button will allow the user to control sequence of the analog blocks. An LCD display will be used to give the user feedback of the current state of the system when scrolling and selecting particular modes.

Reach Goals

added DSP functionality such as monitoring of the analog functions

Replace Arduino boards for DSP with custom digital control boards using ATmega328 microcontrollers (same as arduino board)

Rack mounted enclosure/marketable design

System Verification

We will qualify the success of the project by how closely its processing performance matches the design intent. Since audio 'quality’ can be highly subjective, we will rely on objective metrics such as Gain Reduction (GR [dB]), Total Harmonic Distortion (THD [%]), and Noise [V] to qualify the analog processing blocks. The digital controls will be qualified by their ability to actuate the correct analog blocks consistently without causing disruptions to the signal chain or interference. Additionally, the hardware user interface will be qualified by ease of use and intuitiveness.

Project Videos