What technology is used in modern access control systems?

Modern access control systems increasingly utilize RFID (Radio Frequency Identification) technology due to its efficiency, convenience, and security capabilities. RFID systems operate by using radio waves to automatically identify and track tags attached to objects, such as key fobs or cards. These tags contain unique identifiers that can be read by RFID readers, allowing for quick access control without the need for physical contact or line of sight, which is especially useful in environments where speed and reliability are essential.

RFID technology supports various access control applications, including secure entry into buildings, tracking of assets, and managing access permissions for different individuals. Its ability to integrate seamlessly with other security systems enhances overall safety and operational efficiency, making it a preferred choice for modern applications.

While Bluetooth technology, Wi-Fi connectivity, and infrared sensors are also relevant in some access control methods, they do not operate in the same primary manner as RFID systems. Bluetooth is more commonly associated with short-range communication devices, Wi-Fi is primarily used for internet networking, and infrared sensors are often utilized in motion detection rather than specifically in access control. Thus, RFID stands out as the most suitable and widely adopted technology in contemporary access control solutions.