ECE4884 / 4007 Project Summary Project Title Buzzcard Group Team Members Derek Bankieris (Computer Engineering) (names and majors) Roger Chiou (Electrical Engineering) Avi Haim (Electrical Engineering) Steven Kim (Electrical Engineering) Jared Krichko (Computer Engineering) Advisor / Section Professor Whit Smith / Section L01 Semester 2008 Fall Project Abstract The BuzzCard Access System (BAS) will allow members of the (250-300 words) Westminster Christian Fellowship (WCF) to access the building using a magnetic stripe card, such as a BuzzCard or ATM card. A BAS-enabled door would permit users to swipe a valid card, open the door within five seconds, and enter the building. A secure, off-site database will monitor system activity by keeping an audit trail of access attempts. System administrators will be able to modify the list of approved users by adding new or removing existing cards. In the event of a power failure, the system will be supported by a backup battery. Users of the WCF need a more efficient method of access control than currently employed. The standard lock and key system requires monitoring the distribution of keys and periodic replacement of locks and lost or stolen keys. The BAS will provide WFC administrators with better control over which users are granted access and allow users to utilize cards that they already carry with them. This complete service can be installed at the WCF on three doors for $15,700, with parts and equipment totaling $1,000 and labor costs totaling $14,700. There are no maintenance related expected costs. An expansion of the system would cost approximately $550 per door, including parts and labor. Project Title Buzzcard Group List codes and Cards must adhere to ISO standards 7810, 7811, 7813, and 4909, which define standards that magnetic card formats. significantly affect your The system will adhere to the National Electric Code NFPA 70, which governs the installation of electronics. project. Briefly describe Ethernet wires will meet ANSI Category 5e requirements. how they influenced The supply power will be standard 120V AC. your design. Data storage format will be comma delimited ASCII text. The internet interface will employ HTTP, FTP, and SSH. List at least two Door threshold is made of metal making it difficult to install electric strike door significant realistic locks. Card type flexibility needed to be incorporated because not all users have Buzzcards. design constraints that applied to your project. Briefly describe how they affected your design. Briefly explain two Choice between electric door strike or magnetic lock needed to be decided. Since significant trade-offs the threshold was metal and hard to cut for recessed electric strikes, the magnetic lock was chosen. Magnetic stripe versus RFID access was based on convenience considered in your and cost. The magnetic stripe reader is cheaper than the RFID reader. If a person design, including needs to get close to the RFID reader to deactivate the lock, one might as well options considered and swipe the card. the solution chosen. Briefly describe the A software spin-lock is used to wait for activity from the card readers. This has the computing aspects of advantage of being simple, but consumes more power than using hardware interrupts. your projects, specifically identifying Cross compilation was used to port applications to the board as opposed to putting hardware-software a compiler on the board itself to save on memory resources. tradeoffs, interfaces, and/or interactions. Complete if applicable; required if team includes CmpE majors.
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