Smart Lock System for Optical Distribution Cabinet Using RFID and Hydraulic Mechanism

Optical Distribution Cabinet (ODC) is a critical component in fiber optic network infrastructure, often located in public places and vulnerable to unauthorized access and vandalism. Traditional mechanical locking systems have limitations in terms of security and operational efficiency. This research presents a Radio Frequency Identification (RFID)- based smart lock system integrated with a hydraulic mechanism to improve security and access efficiency at ODCs. The system utilizes Arduino Uno microcontroller as the main controller unit, MFRC522 RFID module for user authentication, hydraulic actuator as the door opening mechanism automatically, and status indicators in the form of buzzer and LED. When a valid RFID card is detected, the system activates the solenoid to unlock and the hydraulic actuator automatically opens the ODC door. A green LED lights up to indicate access is accepted, while a red LED lights up and a buzzer sounds if access is denied. The test results show that the system is able to respond to RFID input with an optimal distance of up to 4 cm and successfully open the ODC door automatically with a hydraulic actuator. The implementation of this system is expected to replace conventional locking methods and improve operational efficiency in managing fiber optic network infrastructure.