BuzzCard Access System for Westminster Christian Fellowship

Matthew HabibAyush Samantroy

Daniel van KleyAdam Sakautzky

ECE 4007 L01

March 3, 2008

Overview

• Magnetic cards for access into WCF• Database of active users• Audit trail• Web-based administration• Cost: $870

Technical Objectives

• ISO 7810/7811 compliance• 5 second response time• 5% false negative rate• Secure offsite backup• 12 hour battery backup

Single Board Computer

• Technologic TS-7250• Small power footprint• Debian Linux• Serial, USB, and Ethernet• Digital I/O• 5V DC• $150

HID Magnetic Stripe Reader

• Dorado 6453• ISO 7810/7811 compliant• Weatherproof• 5V, 30mA DC• $150

Magnetic Card Reader

Door Locks

Electric Strike:• Replaces existing door strike• 12V, 300mA DC• $150

Magnetic Lock:• Alternative to door strike• 12V, 100mA DC• $400

User Access Flow

Power Schematic

Demonstration

Objectives:• Allow access with valid card only• Generate accurate access log• Administer system via web browser• Operate system on battery backupQuality Assurance:• Test false positive/negative rate

BudgetComponent Cost

Magnetic Card Reader $150 (ea.)

Technologic TS-7250 SBC $150

Electric locking mechanism $150 (ea.)

Electric wiring $100

Data cables (Serial) $10

Data cable (Cat5e) $20

Conduit $50

Enclosure $180

Backup lead-acid battery $60

TOTAL $870

Current Status

Completed:• Acquired hardware• Initialized SBC• Tested hardware• Analyzed existing code

Pending:• Develop web interface• Develop backend program• Install hardware at WCF• Test integrated system

Questions?