Project

# Title Team Members TA Documents Sponsor
11 Big Box, Small Package -- Secure Drone Delivery
 Christian Fernandez
Phillip Jedralski
Timothy Wong
 Xihang Wu design_document1.pdf
final_paper1.pdf
other1.pdf
proposal1.pdf
**Project Proposal**

Net IDs: pjedra2, timothy7, cdf2

**Mission Statement**

To make a safe and secure receptacle for drone related lightweight deliveries for personal/commercial use. The idea behind this design is to incorporate drones for short distant, lightweight deliveries, minimizing the need for more deliveries for small items. This saves time by bypassing transportation by roads and delivering directly to the customer. The receptacle is necessary as the receiving bay for personal or apartment use, as it is a secure way for ensuring that the small packages are not stolen. Once the item/s have been delivered, the receptacle will communicate with the app, letting the user know their package is safe, and can be accessed at any time, ensuring that it will still be there.

**Title**

Big Box, Small Package -- Secure Drone Delivery

**Problem**

Many things people order online or have delivered these days are small and lightweight. No one likes to wait a couple days or weeks for an order, and perhaps have their package stolen in the process. Having to wait again for a new delivery, especially something small can be quite frustrating and unnecessary. More recently, the FAA relaxed rules on unmanned aircraft operation near the beginning of this year that allows for drones < 25 kg to fly over people at night without waiver opening many doors into commercial drone delivery services. This facilitates the need for a secure mechanism for which drone services can deliver packages into.

**Solution Overview**

The secure delivery dropbox offers a secure receptacle for drones to deliver packages, with a system for detecting drone arrival, and security measures for opening and closing the lockbox. The dropbox also communicates through a web application for monitoring box activity.

**Components/Core Features**

Microcontroller - (AtMega) on PCB - Control Unit

Physical Construction - Receptacle/Box - Secure container for housing the package

Door to Box -- motor controlled // Door for user retrieval

Drone Stand, let drone rest.

Transmitter/Receiver - Communication with Drone through Bluetooth? - RF module with Atmega?

Website/App capabilities -- Communication with users. - Raspberry Pi that communicates over wireless network to notify users that package has arrived - Interfaces with microcontroller to detect arrival of drone, successful delivery of package

**Criterion for Success**

Successful communication to the receiver for the drone that the package has successfully landed.

Receptacle recognizes the package and receives it.

User is notified that the package has arrived.



Automatic Piano Tuner

Joseph Babbo, Colin Wallace, Riley Woodson

Automatic Piano Tuner

Featured Project

# Automatic Piano Tuner

Team Members:

- Colin Wallace (colinpw2)

- Riley Woodson (rileycw2)

- Joseph Babbo (jbabbo2)

# Problem

Piano tuning is a time-consuming and expensive process. An average piano tuning will cost in the $100 - $200 range and a piano will have to be retuned multiple times to maintain the correct pitch. Due to the strength required to alter the piano pegs it is also something that is difficult for the less physically able to accomplish.

# Solution

We hope to bring piano tuning to the masses by creating an easy to use product which will be able to automatically tune a piano by giving the key as input alongside playing the key to get the pitch differential and automatically turning the piano pegs until they reach the correct note.

# Solution Components

## Subsystem 1 - Motor Assembly

A standard tuning pin requires 8-14 nm of torque to successfully tune. We will thus need to create a motor assembly that is able to produce enough torque to rotate standard tuning pins.

## Subsystem 2 - Frequency Detector/Tuner

The device will use a microphone to gather audio measurements. Then a microprocessor processes the audio data to detect the pitch and determine the difference from the desired frequency. This can then generate instructions for the motor; direction to turn pegs and amount to turn it by.

## Subsystem 3 - User Interface/Display Panel

A small but intuitive display and button configuration can be used for this device. It will be required for the user to set the key being played using buttons on the device and reading the output of the display. As the device will tune by itself after hearing the tone, all that is required to display is the current key and octave. A couple of buttons will suffice to be able to cycle up and down keys and octaves.

## Subsystem 4 - Replaceable Battery/Power Supply

Every commercial product should use standard replaceable batteries, or provide a way for easy charging. As we want to develop a handheld device, so that the device doesn’t have to drag power wires into the piano, we will need a rechargeable battery pack.

# Criterion For Success

The aim of the Automatic Piano Tuner is to allow the user to automatically tune piano strings based on a key input alongside playing a note. We have several goals to help us meet this aim:

- Measure pitch accurately, test against known good pitches

- Motor generates enough torque to turn the pegs on a piano

- Tuner turns correctly depending on pitch

- Easy tuning of a piano by a single untrained person

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