Biometric Security System: Biometric Security System Capstone Project_PDR Mat Merkow Tung Nguyen Dipesh Shakya


Presentation Overview : Presentation Overview Introduction, Purpose and Objectives Hardware/Software Overview Hardware Subsystems Software Project Timeline Estimated Prototype Cost Risks and Recovery Options


Introduction, Purpose and Objectives: Introduction, Purpose and Objectives BioSec is a wireless biometric security system that Keeps all of the client’s biometrics on the primary device (you don’t have to give your boss your fingerprints) Makes sure the client is alive before allowing access Can be attached to nearly any electrical device to enhance security Could be used as an interface for securely transmitting vital signs


System Overview : System Overview


Hardware Assembly: Hardware Assembly Authentication Module User Interface (LCD) Brain (FPGA board) Communication (Bluetooth) Secondary Module


Authentication Module: Authentication Module Subsystems Fingerprint authentication Vital Sign Verification


Fingerprint Module: FDA01M: Fingerprint Module: FDA01M Standalone device with built-in CPU CMOS sensor (complementary metal oxide semiconductor) Resolution: 500dpi Power Supply 5VDC ±5% Current Consumption < 75mA Standby Power Consumption 40mA (TYP) Verification Time < 1sec Image Capture Error Rate < 0.1% Dimensions 21(W) x 32 (L) x 62(H) Life Time Typically 40,000Hrs


Feature of the FDA01M: Feature of the FDA01M


Feature Continue:: Feature Continue:


Pulse Oximetry: Pulse Oximetry Pulse and blood oxygenation are measured by shining a beam of light from an LED through a tissue bed (typically, the finger) Extremely common for use on patients under anesthesia during surgery We will use Pulse Oximetry to verify that the client being authenticated is alive


Pulse Oximetery Hardware: Pulse Oximetery Hardware Accuracy: Adult: +/-2% at 70-99% SpO2 < 70% undefined, greater of +/-2 BPM or +/-2% Power Requirements: 6.6mA at 3.3 VDC electrically isolated (22mW typical) Communication: Serial RS-232 Data provided to host includes % SpO2, pulse rate, signal strength, bargraph, plethysmogram waveform, and status bits


LCD Interface: LCD Interface


LCD – User Interface: LCD – User Interface 4x20 Serial LCD with Keypad Interface Communication: RS232 or I2C Speed: RS232 mode 1200bps to 19.2 Kbps Fully buffered - no delays in transmission Supply Voltage: +4.75 to +5.25Vdc Supply Current: 10mA typical Backlight Supply Current: 90mA typical


Spartan-3E FPGAs: Spartan-3E FPGAs Xilinx Spartan-3 FPGA w/ twelve 18-bit multipliers, 216Kbits of block RAM, and up to 500MHz internal clock speeds On-board 2Mbit Platform Flash (XCF02S) 8 slide switches, 4 pushbuttons, 9 LEDs, and 4-digit seven-segment display Serial port, VGA port, and PS/2 mouse/keyboard port Three 40-pin expansion connectors Three high-current voltage regulators (3.3V, 2.5V, and 1.2V) Works with JTAG3 programming cable, and P4 & MultiPRO cables from Xilinx 1Mbyte on-board 10ns SRAM (256Kb x 32)


Spartan-3 Continue: Spartan-3 Continue


Secondary Device: Secondary Device Receives signal from primary device and activates the controlled device Uses a switch to enable/disable power to the controlled device Sends signals if necessary to activate the controlled device


Communication between Primary and Secondary Devices: Communication between Primary and Secondary Devices We use Bluetooth as our primary communication device between Primary and Secondary Devices: More suitable for PAN (Personal Area Network) Eg: To connect PDAs, Notebooks, Printers, Digital camera, cell phones with each other or a computer. Range: 30 – 60 ft High powered Bluetooth up to 300 ft Operating frequency: 2.45 GHZ Data rate: 720 Kbps Capability of transmitting voice, data, video and still images Less interference to adjacent users Sends very weak signals of 1mw Uses Frequency Hopping at 1.6 MHZ Data packets are small


Why Bluetooth?: Why Bluetooth? Infra Red Not suitable because of “Line of sight” Wi Fi More suitable for LANs than PANs Bluetooth Security: Extremely secure Uses several layers of data encryption and user authentication Uses PIN and a Bluetooth address to identify other Bluetooth devices


Software: Software Drivers for subsystems (possibly Xilinx soft interfaces) User interface Finite State Machine In FPGA of primary and secondary devices


Estimated Prototype COST: Estimated Prototype COST Fingerprint with development software:   $850 Spartan 3 FPGA board: $120 Vital Signs module: $100 Bluetooth interfaces: $050 Secondary device: $100 Standard NREL Overhead (15%) $183 TOTAL $1403


Time Chart: Time Chart


Labor and Responsibilities: Labor and Responsibilities Mat Merkow’s primary responsibilities will include writing the finite state machines running on the FPGAs, building the secondary device, writing drivers and interfaces to the other components and writing documentation. Tung Nguyen’s primary responsibilities will include implementing the Authentication module, creating the user interface and writing documentation. Dipesh Shakya’s primary responsibilities will include setting up communication between the two devices, software development and writing documentation.


Risks & Contingency Plan: Risks & Contingency Plan Not able to spend 1000$ for a Fingerprint Module Develop an authentication algorithm / software Difficulty in contact with biometric companies for technical supports Evaluate technical support availability before placing an order Number of members vs. the whole project possible cut back in complexity Inexperience of Interfaces Between Hardware Components Do more research ahead of time Complex Software User Interface Spend more time learning


Questions ?: Questions ?


Thank You !: Thank You ! BioSec Team Mat Merkow Tung Nguyen Dipesh Shakya