iSecurity Mid-Semester Presentation October 9, 2012 Team Members Jonathan Lalo Read Sprabery Brandon Dahler John Gazzini Dr. Yogi Dandass Computer Engineer Team Leader Image comparision Wifi Establisment Software Engineer Image format translation Image Transmission Server programming Software Engineer Server programming Image comparison Image Storage Computer Engineer iPhone application Image comparison Outline Problem Solution System Overview Constraints Technical Practical Technolocies & Part Choice Progress 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 System Overview Configuration Overview Operation Overview Technical Design Constraints Image Processing: 10 frames per second, motion detection between frames. Wifi: Support for WPA Personal, WPA2 Personal, and WEP. Power: Single 120VAC Connection (from standard wall socket). Storage: Still frames stored on removable SD card when motion is detected. Range: Motion must be detectable at 40ft. 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 Included adapter Range Motion detectable at 40 feet Algorithm should be adjustable by the consumer Practical 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 Technology and Part Choices Server Technologies Windows Enterprise vs. Open Source Familiarity with Windows server technologies ASP.NET Windows Server access for startup company Many other options still open with Windows Ruby on Rails PHP Initial Hardware Wi-Fi Module MicroChip: MRF24WB0MA/MB : $24 [2] Each module supports WPA2 TCP/IP stack is + library included Camera MT9T031C12STC : $20 [3] 48-pin CLCC Bayer RGB Initial Hardware Image Processor Propeller ($10) [4] 8 cores Beta GCC compiler Lack of familiar tools Cheapest development board Massively parallel Current Hardware Processor Raspberry Pi [5] 256 MB RAM 700 Mhz ARM Processor Linux Operating System Cheap ($35) Reduced development time Options for hardware generalized and expanded Current Hardware Wi-Fi Module Edimax EW-7811Un [6] Supports aspects we were looking for Small size Cheap ($10) Compatible with Raspberry Pi Current Hardware Camera Any known Linux-compatible camera Rosewill RCM-816V [7] $16 1.3M pixels USB 2.0 UVC compliant, so Linux compatible Progress Parts acquired and assembled Code Sharing via Subversion established Server code-base setup Saving to SD card on device Wi-Fi connectivity established on device 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 30 iPhone app full functionality, Server functionality December 1 Begin optimization References [1][2][3][4][5][6][7] Questions