THE PROBLEM AND A REVIEW OF RELATED LITERATURE
Doors are used to separate interior spaces of the house for privacy, convenience, security, and safety reasons. Not only houses but also offices, shops, stores and schools have used doors to secure passages from the exterior for reasons of safety and for climate control. All doors had locks which have numerous uses. Be it general or specialized. Generally, door locks are important for safekeeping . There are lots of different brands of door locks, and a reputable one is crucial for the privacy or security required like Dexter, Skulthai, Schlage, Chubb and Yale, but the researchers envisioned to make a network based door lock utilizing radio frequency identification device. This would be specifically used for the multimedia rooms in St. Paul University Surigao. Multimedia room is typically used for presentation of reports or class discussion. It uses projector or television, computer and other device for presentation. This room is very helpful especially in class presentations to make it very clear and more understandable. It could help visualize presentations during the delivery of report by combining images, texts, audios and even videos. Radio Frequency Identification (RFID) however, is a technology that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency (RF) portion of the electromagnetic spectrum to uniquely identify an object, animal, or person. RFID has been increasingly used in industry as an alternative to the bar code. One of the advantages of RFID is, it does not require direct contact or line-of-sight scanning. An RFID system consists of three components: an antenna, transceiver and a transponder (the tag). The antenna and transceiver were often combined into one which would be the RFID reader. The higher the frequency range, the more expensive the system would be. With the number of keys in all rooms in St. Paul University Surigao, there is the apprehension of losing or misplacing the key. Besides, if the ICT in- charge is not around, it can cause the delay of class just because of the key in a particular room. Application of technology to this kind of scenario may help lessen the delay of classes and presentation by generating an automation and security devices such as network door lock for multimedia rooms. Thus, researchers decided to design a form of network based door lock utilizing radio frequency identification card for multimedia rooms in St. Paul University Surigao. This device is a combination of server (a computer), RFIDs, and door locks which are used to help protect the multimedia rooms of SPUS. The server (computer) is used to accept input signal and would send an output signal for triggering the door lock. The network based door lock utilizing RFID would automate the multimedia rooms which are under the Information and Communication Technology (ICT) office to give hassle-free experience to the room users. This project also enables to improve the security system and protect the properties of school inside the multimedia rooms. Radio frequency identification (RFID) card serve as the key for the network based door lock. Since it is a network door lock using radio frequency card, this two conditions are satisfied for the users to use the room:(1) The device would be expected to lock again between 3-5 seconds after the door lock is activated; and (2) The network would be used to communicate from the door lock to the server (vice- versa) and would give signal to open the door lock when the condition is satisfied. In case of power interruption, there would be an extra battery to be used according to its desired voltage.
Review of Related Literature
This section presents the theories and concepts that have implication to the study of a door lock system. The statements below give knowledge and ideas in making the project possible. Door lock is a kind of lock on an exterior door operated by a...