Performance Analysis of RFID-Based Smart Door Lock Controlled by Arduino

Abstract

Traditional door lock systems that usually use mechanical locks are now starting to be replaced with electrical and control-based lock systems that have more capabilities than traditional door lock systems. These techniques are an integration of mechanical devices, electronics, and intelligent control devices. One of the important features of this innovative lock system is its simplicity and high efficiency. In this research, an automatic lock system was constructed by combining mechanical and electrical components into a device. A microcontroller Arduino was used to control the whole functions of the system.  The input component for this system is an RFID card or RFID Tag. An RFID reader is installed on the device to detect the RFID card used when accessing the door whether a registered card or not. A solenoid door lock is used as an output that will function as a door lock mechanism. The door lock system developed in this study is integrated with the attendance system database. The result of this research shows that the system can recognize the identity of the door accessor and is also able to store data in form of identity and time the door is accessed. The solenoid door lock will retract to unlock the door if the door is accessed with a registered RFID card and vice versa solenoid door lock will continue in the push position to lock the door if the door is accessed with a not registered RFID card. Some of the main performances of this system are that RFID read range from 0 - 20mm, RFID sensor can detect the presence of an RFID card even if it is blocked by objects such as papers, plastics, glass, and cloths. When objects such as aluminum or iron are present in between the RFID sensor and the RFID card, it will interfere with the signal so that the RFID sensor cannot detect the presence of the RFID card.