PC and microcontroller-based radio frequency identification (RFID)- enabled doorlock with login

Date

10-2010

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Alexandra B. Santos

Abstract

A Radio Frequency Identification (RFID) — controlled doorlock with login/logout and user time limitation system was developed and tested. The system as a whole is composed of RFID communicating system. IRC slimboard v.7.5 with the Z8F6421 microcontroller, Liquid Crystal Display (LCD), alphanumeric keypad, electronic door latch, and the Graphical User Interface (GUI). All the hardware modules were placed in a miniature door made of wood and fiber glass. ZDS II - Z8Encore! 4.10.1 and Microsoft Visual Basic 2008 Express Edition were used for programming the main controller and for creating the Graphical User Interface, respectively. The Z8F6421 microcontroller served as the main control where input data have been processed to produce the desired output. DIP switches were used for adding and deleting cards/tags. An administrator permits the addition and removal of members. The door latch unlocks when a valid user was detected within its allowed time of use and locks automatically when pushed. The availability of a metallic key ensures the security of the room during power shortage. Results show that card validation ensures the entry of a member while blocking unregistered tags. Moreover it was found that different kind of metals among ordinary materials can block the communication of the tag and the reader. Each user which logs in or out is being recorded, together with the time, on the Graphical User Interface. The GUI is also responsible for transmitting the real clock to the system, allocating username and decimal-coded RFID of each transponder, and for saving a day's record. User time distinction was successfully implemented by limiting the time of usage of different types of members.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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