Project :: ECE 445 - Senior Design Laboratory

Project

#	Title	Team Members	TA	Documents	Sponsor
35	Protect-U	Ali-Berk Eroglu Bhavish Bhattar Santan Katragadda	Stephanie Jaster	design_document1.pdf design_document2.pdf design_document3.pdf design_document4.pdf design_document5.pdf design_document6.pdf final_paper1.pdf other2.pdf other1.pdf proposal2.pdf proposal1.pdf
	# Team (Net-ID): Bhavish Bhattar (bbhatta2), Santan Katragadda (skatrag2), Ali Berk Eroglu (aeroglu2) # Idea: Problem: Sexual assault and harrassment has been a common problem in society and has been know to be the most under reported violent crime. Cases are often times dismissed or not even brought to court as the evidence presented becomes a "He said vs she said'' case in which the victim's pleas struggle to gain validity without concrete proof. Solution Overview: Our solution seeks to help victims through the use of a wearable device that can record audio and emit a loud siren to attract attention to the situation. The audio will be saved to the user’s phone via bluetooth. Upon deploying the loud siren, the device will reach out to other parties for help. # Solution Components: - Trigger mechanism: A button on the wearable device that upon a three taps will begin recording audio and upon five taps will deploy an alarm and reach out to parties for help. - Alarm system: Once the alarm is triggered, the device must be capable of outputting a loud enough siren to attract attention from people in the vicinity. A speaker with an amplification circuit would be used here. - Audio recording: Device must be able to record audio in the nearby vicinity. We will use a microphone with an amplification circuit to accomplish this. - Bluetooth: device can send the audio recording via bluetooth to the victim’s mobile device - Application: will allow the audio to be saved on the phone. - Memory: Micro SD card to store audio recordings on wearable device - Microprocessor: Contains logic for managing memory, bluetooth, audio recording, and alarm system. - Battery: Battery with a charging circuit and USB-to-serial converter # Criteria for Success: - Reliable way of initiating audio recording and alarm system - Saving of audio recordings onto phone - Reaching out to parties for help upon alarm - Device with reasonable size that can be wearable

Title

Team Members

Documents

Sponsor

Protect-U

Ali-Berk Eroglu
Bhavish Bhattar
Santan Katragadda

Stephanie Jaster

design_document1.pdf
design_document2.pdf
design_document3.pdf
design_document4.pdf
design_document5.pdf
design_document6.pdf
final_paper1.pdf
other2.pdf
other1.pdf
proposal2.pdf
proposal1.pdf

# **Team (Net-ID):**

Bhavish Bhattar (bbhatta2), Santan Katragadda (skatrag2), Ali Berk Eroglu (aeroglu2)

# **Idea:**

Problem: Sexual assault and harrassment has been a common problem in society and has been know to be the most under reported violent crime. Cases are often times dismissed or not even brought to court as the evidence presented becomes a "He said vs she said'' case in which the victim's pleas struggle to gain validity without concrete proof.

Solution Overview: Our solution seeks to help victims through the use of a wearable device that can record audio and emit a loud siren to attract attention to the situation. The audio will be saved to the user’s phone via bluetooth. Upon deploying the loud siren, the device will reach out to other parties for help.

# **Solution Components:**

- Trigger mechanism: A button on the wearable device that upon a three taps will begin recording audio and upon five taps will deploy an alarm and reach out to parties for help.
- Alarm system: Once the alarm is triggered, the device must be capable of outputting a loud enough siren to attract attention from people in the vicinity. A speaker with an amplification circuit would be used here.
- Audio recording: Device must be able to record audio in the nearby vicinity. We will use a microphone with an amplification circuit to accomplish this.
- Bluetooth: device can send the audio recording via bluetooth to the victim’s mobile device
- Application: will allow the audio to be saved on the phone.
- Memory: Micro SD card to store audio recordings on wearable device
- Microprocessor: Contains logic for managing memory, bluetooth, audio recording, and alarm system.
- Battery: Battery with a charging circuit and USB-to-serial converter

# **Criteria for Success:**

- Reliable way of initiating audio recording and alarm system
- Saving of audio recordings onto phone
- Reaching out to parties for help upon alarm
- Device with reasonable size that can be wearable

Featured Project

# People

Scott Liu - sliu125

Connor Lake - crlake2

Aashish Kapur - askapur2

# Problem

Buses are scheduled inefficiently. Traditionally buses are scheduled in 10-30 minute intervals with no regard the the actual load of people at any given stop at a given time. This results in some buses being packed, and others empty.

# Solution Overview

Introducing the _BusPlan_: A network of smart detectors that actively survey the amount of people waiting at a bus stop to determine the ideal amount of buses at any given time and location.

To technically achieve this, the device will use a wifi chip to listen for probe requests from nearby wifi-devices (we assume to be closely correlated with the number of people). It will use a radio chip to mesh network with other nearby devices at other bus stops. For power the device will use a solar cell and Li-Ion battery.

With the existing mesh network, we also are considering hosting wifi at each deployed location. This might include media, advertisements, localized wifi (restricted to bus stops), weather forecasts, and much more.

# Solution Components

## Wifi Chip

- esp8266 to wake periodically and listen for wifi probe requests.

## Radio chip

- NRF24L01 chip to connect to nearby devices and send/receive data.

## Microcontroller

- Microcontroller (Atmel atmega328) to control the RF chip and the wifi chip. It also manages the caching and sending of data. After further research we may not need this microcontroller. We will attempt to use just the ens86606 chip and if we cannot successfully use the SPI interface, we will use the atmega as a middleman.

## Power Subsystem

- Solar panel that will convert solar power to electrical power

- Power regulator chip in charge of taking the power from the solar panel and charging a small battery with it

- Small Li-Ion battery to act as a buffer for shady moments and rainy days

## Software and Server

- Backend api to receive and store data in mongodb or mysql database

- Data visualization frontend

- Machine learning predictions (using LSTM model)

# Criteria for Success

- Successfully collect an accurate measurement of number of people at bus stops

- Use data to determine optimized bus deployment schedules.

- Use data to provide useful visualizations.

# Ethics and Safety

It is important to take into consideration the privacy aspect of users when collecting unique device tokens. We will make sure to follow the existing ethics guidelines established by IEEE and ACM.

There are several potential issues that might arise under very specific conditions: High temperature and harsh environment factors may make the Li-Ion batteries explode. Rainy or moist environments may lead to short-circuiting of the device.

We plan to address all these issues upon our project proposal.

# Competitors

https://www.accuware.com/products/locate-wifi-devices/

Accuware currently has a device that helps locate wifi devices. However our devices will be tailored for bus stops and the data will be formatted in a the most productive ways from the perspective of bus companies.