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iSecurityEnd of Semester Presentation
November 29, 2012
Team Members
Jonathan Lalo
Read Sprabery Brandon Dahler
John Gazzini
Dr. Yogi Dandass
Computer EngineerTeam LeaderImage comparision Wifi Establisment
Software EngineerImage format translationImage TransmissionServer programming
Software EngineerServer programmingImage comparisonImage Storage
Computer EngineeriPhone applicationImage comparison
Outline
• Problem• Solution• Constraints
‒ Practical‒ Technical
• System Overview• Prototype• Testing & Debugging• Future Tasks• Timeline
Problem
A need exists to monitor homes while away at various locations.
Devices that address this are expensive and difficult to install, making them inaccessible to the majority of potential users.
Solution
iSecurity:Camera & WiFi device configured through iPhone application
• Notifications sent directly to the iPhone• Device requires home wireless internet connection• Minimal user interaction required for setup
Practical Design Constraints
Economic
• IZON - Close competitor [1]‒ $130 price point, similar feature set‒ Includes audio
• iSecurity‒ $99 price point‒ $49.99 manufacturing cost‒ Competitive with ability to profit
Sustainability
• Device relies on external server‒ Product Takes Off
Load problems Need to be scalable and extensible for new
products
‒ Product fails / Business Fails Server still needs to be maintained, possibly
downgraded Continued support for existing products, possibly
with degraded performance
Technical Design Constraints
Image Processing Performance
• Frame Analyzation in under 75ms‒ Comparison between frames‒ Storage‒ Transmission
Wireless Standards
• Basic requirements for Wi-Fi module‒ WEP, WPA Personal, and WPA2 Personal‒ Ad-hoc mode available for configuration
Storage• Removable SD Card
‒ Adequate size and speed
Power• 120V AC to 5V DC
‒ Must provide at least 700mA
Range
• Motion detectable at 40 feet‒ Algorithm should be adjustable by the consumer
System Overview
Testing & Debugging
Distance Testing
Approx. 40 Ft.
Unit Testing of Python Functions
• Used to isolate functionality for more thorough testing
Wireshark
NetCat
Prototype
Prototype: iSecurity Device• Connect to iPhone over TCP via ad-hoc wifi.• Get network credentials• Connect to iSecurity Server• Connect directly to iPhone via UDP hole-punching.• Upload images via custom protocol
Prototype: iPhone
Home Screen First image successfully transmitted
Prototype: iPhone
It just works
• Secure login• Images streamed
directly from camera to iPhone
• Significantly reduced server traffic
• Custom UDP protocol for streaming images
Prototype: iPhone
• Apple Push Notification Service [2]
Prototype: iPhone
Future Tasks
• Research and Purchase New Camera
• Faster Image Processing
• Local Network Functionality
• Professionally Package the Device
• Motion Detection Rage Adjustable through iPhone
• Finish iPhone UI
First Semester Timeline
September 26 Order Parts
October 14 Save pictures to SD card, begin motion detection, basic accounts on server
November 14 Detect motion on device, broker connections via server, send pictures over Wi-Fi
November 28 iPhone app full functionality, Server functionality
December 1 Begin optimization
References
•[1] http://steminnovation.com/section/iZON/24/•[2] http://developer.apple.com/library/ios/#
documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/ApplePushService/ApplePushService.html
Questions?