raytheon senior project - usf...final presentation for senior project 2 of 49 may 3, 2012...

Final Presentation for Senior Project

May 3, 2012 1 of 49

Luis Cintron Michael Kubacki Robert Skinner

Department of Computer Science and Engineering

University of South Florida

Tampa, FL 33620

[email protected]

[email protected]

[email protected]

Raytheon Senior Project

www.cse.usf.edu/raysp/


May 3, 2012 2 of 49

Acknowledgments

• Jeremiah Schroder – Raytheon – Project supervision and support

• Michael Stillo – Raytheon – Project advisor and evaluator

• Tara Mazzocco – Future Technology Devices Int. – Hard work to acquire a free hardware sample for our group

• Bob Recny – Future Technology Devices Int. – Quick feedback and engineering advice on the feasibility of

hardware implementation using Vinculum-II products


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Agenda

• Background

• Problem and Requirements

• Our Approach

• Design

• Android App Architecture

• Implementation

• Solution (Demonstration)

• Production Cost and Approach

• Verification of Requirements

• Summary and Future Work


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Agenda

• Background


• Our Approach

• Design


• Implementation






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Modern smart phones are ‘slave’ devices, they require a

‘host’ device to communicate over their USB port. USB

Mass-storage devices are also ‘slaves’.

Background

Slave Device Slave Device

Host Device

Background


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Agenda

• Background


• Our Approach

• Design


• Implementation






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Problem

As of today, a smart phone user cannot transfer files from a

USB Mass-storage device to his or her smart phone without

the use of a host device, which are currently unsuitable for

use in an increasingly mobile world.

Problem & Requirements

Host is Needed!

Slave Device Slave Device


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Possible Solutions

vs. vs.

Arduino Pro-Mini V2DIP2-48 • Dimensions:

o Arduino Mini-Pro Board: 18mm x 33mm x 2mm (w x l x h)

o Arduino Mini USB Host-Shield: 18mm x 45mm x 8mm (w x l x h) x 2

o Total Volume for Board and two(2) USB Host-Shields: 14148mm^3

• Power: 5v - 12v

• Cost: o Arduino Mini-Pro Board:

$18.95 (100+ -> $15.16) o Arduino Mini USB Host-Shield:

$20.00 (100+ -> $19.96)

• Speed: 12 Mbps / 1.5 Mbps Host

• Functionality: A microcontroller that can have USB host shields (additional boards) attached to provide USB hosting functionality.

• Dimensions: 68.56mm x 17.78mm x 26.60mm (lxwxh)

o Total Volume: 32425.31mm^3

• Power: 5v

• Cost: $28.62

• Functionality: The V2DIP2-48 provides a bridge between 2 BOMS (Bulk Only Mass Storage) devices, powered by an outside source.

• Custom firmware can be developed using the Vinculum II development software tool suite.

• For mass storage devices such as USB flash drives, VNC2 transparently handles the FAT file structure.

VF2F2

• Dimensions: 44.8mm x 69.8mm x 11.4mm (lxwxh) o Total Volume:

35648.26mm^3

• Power: On-board DC-DC converter supplies circuitry with 3.3v & 5.5v from 2xAAA cells

• Cost: $37.50

• Functionality: At the push of a button allows all the files on a USB mass storage device to be copied to a unique folder on another USB mas storage device.

• Transparently handles the FAT file structure communicating via UART, SPI or parallel FIFO interfaces via a simple to implement command set

[Web site] [Web site] [Web site]


http://arduino.cc/it/Main/ArduinoBoardProMini

http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_V2DIP2-48.pdf

http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_VF2F2.pdf


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vs. vs.

Arduino Pro-Mini Vinculum-II

Advantages

•Transparent support for FAT file structure

•Android drivers available using the Android

Open Accessories Initiative that allows the

Vinculum-II to attach to an Android device

•Specifically designed to act as a USB host for

mass storage device to smart phone transfers with

the ability to create custom firmware

Advantages

•Support/documentation widely

available

•Relatively lightweight

Disadvantages

•Relatively heavy (~350g)

•High unit volume

Advantages

•Transparent support for FAT file

structure

•Android drivers available using

the Android Open Accessories

Initiative that allows the

Vinculum-II to attach to an

Android device

•Specifically designed to act as a

USB host for mass storage

device to mass storage device

transfers

•Programmable firmware

VF2F2

Disadvantages

•High unit volume

•Difficulty to customize firmware

unknown

Advantages/Disadvantages Problem & Requirements

Disadvantages

Primary Disadvantage:

1 board + 2 shields

•Few example of USB hosting exist

•High unit cost

•High unit volume size

•Relatively heavy

•USB host documentation scarce


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Agenda

• Background


• Our Approach

• Design


• Implementation






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ume

Device (umed)

User

ume Solution

System Architecture

USB Mass

Storage

Device

ume

Android

Application

Our Approach

V2DIP2-48 Programmable

USB Host

Controller

5 Volt DC

Up-

Converter


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System Design/Overview Our Approach


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Android

App

USB Host

Controller

Flash Drive

File Sending

Application

User Controls

File look up and

transfer File look

up and

transfer

To

recipient

Attach

file(s)

System Design/Overview Our Approach


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Agenda

• Background


• Our Approach

• Design


• Implementation






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Physical Interfaces Compatibility

5v

5v gnd 5v 500ma

V2DIP2-48

USB Host Controller

Android 2.3.4+ Phone

USB Mass Storage Device

5V DC Up Converter + & - terminals connected to

vdd/gnd inputs on V2DIP2-48

USB Type-A Inputs

Hardware Design


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Power (Adafruit’s Mintyboost based)

• MintyBoost schematic and

Adafruit's PCB circuit

• 5V Output

• 500mA

• 2 x AA Batteries in series

• Uses 5V DC converter

• Originally a USB-based

charger, repurposed to provide

power to our device’s VDD

and GND pins.

Hardware Design


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Current Power Module Schematic Hardware Design


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Current Case Design Hardware Design

• ON/OFF rocker switch

• LED power indicator


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Software Design – Libraries/Interfaces

Android

Open Accessory

Protocol

Files

Stream to

USB Host

Controller

Overview

Software Design


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Android Application Architecture Software Design


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Android Application Flowchart Software Design


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VOS Kernel

USB Host Hardware

Raytheon Firmware Code

Device Manager

Device Drivers

Android Open

Accessory Protocol

LFAT

API

Firmware Model Software Design


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High-Level Firmware Flowchart Software Design


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Agenda

• Background


• Our Approach

• Design


• Implementation






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Android App Architecture Android App Architecture

Document of ume architecture to port to other mobile operating systems

available at:

http://www.cse.usf.edu/raysp/


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Agenda

• Background


• Our Approach

• Design


• Implementation






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Implementation Implementation

• Ume Android app and the ume device communicate by passing

commands

• Data is transferred in packets of 16,384 bytes

• Commands for activity control and data request


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Agenda

• Background


• Our Approach

• Design


• Implementation






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Solution Solution

USB Mobile Explorer


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Android Application (ume) Screenshots Solution

Home Screen USB File Browser


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USB File Browser Transferring File


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Contact Review Screen E-mail Screen


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Solution Solution


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Agenda

• Background


• Our Approach

• Design


• Implementation






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Production Cost and Approach Production Cost & Approach

Pricing (assuming purchase of 1,000 units)

Item Unit Price Quantity Needed Price * Quantity Need Hyperlink

V2DIP2-32 17.76252 1,000 17,762.52 http://parts.digikey.com/1/parts/1891897-mod-

vinculum-ii-dev-2-port-32dip-v2dip2-32.html

PolyCase 1.24000 1,000 1,240.00 http://www.polycase.com/ts-1741p

PolyCase Machining 1.07000 1,000 1,070.00 http://www.polycase.com

Bag of 100 Screws 3.50000 40 140.00 http://www.polycase.com/mounting-boss-screws

MintyBoost 15.60000 1,000 15,600.00 http://www.adafruit.com/products/14

Switch 1.10510 1,000 1,105.10 http://search.digikey.com/us/en/products/SLS121RA0

4/450-1599-ND/1202218

Resistor 220 Ohms, +/- 5% 0.014 1,000 14.00

http://www.mouser.com/Search/ProductDetail.aspx?R

=293-220-RCvirtualkey21980000virtualkey293-220-

RC

LED 0.12 1,000 120.00

http://www.mouser.com/ProductDetail/Kingbright/WP

710A10QBC-

D/?qs=jBF9H7RTBaStWbYh222yPQ%3d%3d

Total 37.05162 1,000 37,051.62


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Agenda

• Background


• Our Approach

• Design


• Implementation






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Verification of General Requirements Verification of Requirements


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Verification of General Requirements Verification of Requirements


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Verification of System Requirements Verification of Requirements


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Verification of System Requirements Verification of Requirements


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Verification of Test Requirements Verification of Requirements


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Results Verification of Requirements

0

2000

4000

6000

8000

10000

0 10000 20000 30000

File

Siz

e(K

B)

Time(ms)

Transfer Rate

Weight:

118.647 grams

Volume: 101.60 x 44.45 x 25.40 mm

Transfer Rate: 0.36 MB/s

Max File Size Transfer: 9.1 MB


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Performance Requirement Result

The smart phone shall have a

manufacture date after December 2009

(Android 2.2 or greater)

Compatible with Android 2.3.4+

The system interface between the USB

storage device and smart phone shall

be self-powered

The SYSTEM is powered by 2 AA

batteries

Interface between the smart phone and

USB storage device shall be established

in less than 5 seconds from initiation

Umed attaches to the Android device

within 5 seconds

System shall be capable of loading a file

from the USB storage device in less

than 5 seconds

The SYSTEM can transfer a files in less

than 5 seconds but the time is ultimately

dependent upon file size

The SYSTEM shall be capable of

handling files at least 3 MB

The SYSTEM has transferred files up to

9MB


processing standard image, video, and

music files

The SYSTEM has been tested to

transfer all file types from each media

category in SYS09


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Performance Requirement Result

Send a file to a standard email address The SYSTEM is capable of sending a

file to a standard email address


interfacing with standard USB connector

plugs

The SYSTEM has USB Type-A ports

that can interface with other types using

adapters

The interface between the USB device

and smart phone shall be able to

communicate over a distance of greater

than two meters

The SYSTEM uses USB 2.0 which

specifies a maximum distance of 5

meters

The SYSTEM shall operate at less than

6 volts DC

The SYSTEM operates at 5 volts DC

The SYSTEM shall have a single user

interface for standard operation

The SYSTEM user interface is a single

Android app, “ume”

A non-engineering student shall be

capable of installing and using the app

within 5 minutes

A sample of non-engineering students

have successfully installed and used the

app within 5 minutes


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Agenda

• Background


• Our Approach

• Design


• Implementation






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Summary

USB Mobile Explorer • ume allows a user to transfer

files from a USB mass storage

device to their Android phone

• ume enables a user to send files

via their preferred email and

messaging client to recipients

Summary and Future Work


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Future Work Summary and Future Work

• Additional Mobile Platforms

• BlackBerry

• iOS

• Windows Phone

• Increased Data Transfer Rates

• NTFS Support

• Error detection code to ensure successful data

transfers


May 3, 2012 49 of 49

Questions?