An access control system is a system that ensures security and safety by restricting access to buildings, facilities, and areas to only authorized users.

This system identifies users using a variety of authentication methods, including cards, fingerprints, faces, irises, passwords, and mobile authentication. It also controls physical access by linking with doors, gates, barriers, and automatic doors. Furthermore, a central control server provides functions such as access control, real-time monitoring, log management, and statistical analysis.

Access control systems not only enhance security, but also improve operational efficiency by linking with attendance management, visitor management, vehicle access control, and emergency response (automatic opening in the event of fire or disaster). They are essential infrastructure in facilities requiring high security, such as public institutions, military bases, airports, ports, power plants, data centers, corporate buildings, hospitals, and schools.

Recently, it has been developing into contactless authentication, intelligent abnormal behavior detection, and mobile-based access control through the combination of IoT, AI, and cloud technologies, and is expanding into an intelligent integrated control environment linked to an integrated security system (CCTV, intrusion detection, fire alarm, etc.).