Smart Security: An IoT-NFC Lock System for Efficient Access Management

This paper focuses on the development of an advanced smart padlock system specifically designed to enhance security and operational efficiency in workplace environments. The system integrates several high-tech components managed by an Arduino Uno, which serves as the central processing unit. This core controller facilitates communication and synchronization between various system elements, ensuring a robust security infrastructure. The input components of this system include a radio frequency (RF) detector and a direct current (DC) power source. The RF detector is crucial for identifying authorized access attempts via RF signals, which could include RF-enabled devices. This allows for a touchless, secure verification process that minimizes the risk of unauthorized access. The system is powered by DC, providing a reliable and constant power supply essential for maintaining the lock’s operational readiness and security integrity. For output, the system utilizes a solenoid lock mechanism. This electromechanical device converts the electrical signals from the Arduino Uno into mechanical movement, enabling the locking or unlocking actions based on authenticated commands. This arrangement ensures that access is granted only when proper authorization is detected by the system’s inputs. Moreover, the system includes a network module that functions as both an input and an output device. This module enables seamless information exchange across the network, facilitating real-time monitoring and control of the padlock system. It supports remote operations, allowing administrators to manage access permissions and monitor system status from any location. This research presents a sophisticated, integrated smart padlock system that leverages Arduino Uno for centralized control, enhanced by multiple layers of security inputs and outputs, including RF detection, NFC technology, and networked communication. This system is designed to offer superior security and functionality, making it an ideal solution for enhancing workplace safety and security.