Development of a Security Authentication Office Cabinet System with Effective Wireless Communication Protocols

ABSTRACT In today’s digital-driven work environments, securing sensitive documents is one of the critical requirements that goes beyond the traditional lock-and-key solutions. This study presents the design and implementation of a Security Authentication Office Cabinet System with Effective Wireless Communication Protocols, developed to address the growing threats of unauthorized access and data breaches in organizational environments especially government own establishment. The system integrates a solenoid-based electromagnetic lock, microcontroller (ATMEGA328PU), wireless modules (ESP8266 Wi-Fi, SIM900 GSM), and a mobile application for real-time monitoring and alerts. To validate its design, extensive tests were carried out, focusing on authentication reliability, system response, alarm efficiency, wireless range, and power performance. Results obtained from the study demonstrated 100% rejection of unauthorized codes during initial access attempts and a 99% success rate in granting access to correct passwords, confirming strong authentication accuracy. The system achieved an average response time of under 2 seconds, ensuring swift authorization, while false alarms were limited to just 1.2%, highlighting its robustness in real-world scenarios. The battery analysis revealed the low energy consumption, with the unit operating at just 0.5W in standby mode and delivering reliable performance over extended use. The wireless testing showed a consistent success rate within a 30–50m range, ensuring dependable communication for alerts and notifications. Cost analysis over a 5-year period revealed that although upfront investment is dominated by app development, the system delivers long-term value, averaging 20–30% cost savings compared to conventional wired systems, while offering scalability for multi-office deployments. The combination of strong physical security with advanced digital authentication and wireless connectivity, presents a system that delivers a secure, energy-efficient, and user-friendly solution that can aligns with modern office needs. Its successful validation demonstrates not only its technical reliability but also its potential to transform office security practices, reduce risks of document theft, and improve operational resilience in both small businesses and large enterprises. Keywords: Security Authentication, Office Cabinet, Wireless Communication, Access Control