Access Control Systems

Types of Access Control Systems

Physical access control systems are essential components of security strategies for regulating entry and exit to physical spaces, buildings, and restricted areas. These systems employ various authentication methods to grant or deny access and help safeguard people, assets, and sensitive information. In this webpage, we’ll explore the different types of physical access control systems commonly used to secure physical environments.

1. Key-based Access Control Systems:

Key-based systems are a traditional and straightforward method of physical access control. Access is granted by using a physical key to unlock doors or gates. While simple to use, key-based systems have some drawbacks, such as the risk of lost or duplicated keys, making them less secure and challenging to manage in large facilities.

2. Card-based Access Control Systems:

Card-based access control systems have become increasingly popular due to their ease of use and manageability. These systems use proximity cards, smart cards, or magnetic stripe cards to grant access. Users present their card to a card reader, and if authenticated, the door or gate is unlocked. Cards can be quickly deactivated if lost or stolen, enhancing security.

3. Biometric Access Control Systems:

Biometric access control systems offer a high level of security and accuracy by using unique physical or behavioral traits for authentication. Common biometric methods include fingerprint recognition, retinal scans, facial recognition, and voice authentication. Biometric systems provide a reliable way to prevent unauthorized access and eliminate the need for cards or keys.

4. Keypad/PIN-based Access Control Systems:

Keypad systems require users to enter a Personal Identification Number (PIN) to gain access. While affordable, these systems are vulnerable to unauthorized access if the PINs are not adequately protected. Regularly updating PINs and using longer, complex combinations can help enhance security.

5. Vehicle number plate recognition

A Number Plate Recognition camera, also known as License Plate Recognition (LPR) camera or Automatic License Plate Recognition (ALPR) camera, is a specialized type of surveillance camera equipped with advanced software to automatically capture, read, and process vehicle license plates. These cameras are widely used in various applications, including law enforcement, parking management, toll collection, access control, and traffic monitoring.

6. Face recognition.

Face recognition CCTV for access control refers to the use of closed-circuit television (CCTV) cameras equipped with facial recognition technology to manage and control access to a secured area, building, or facility. This technology combines video surveillance with advanced facial recognition algorithms to identify and authenticate individuals based on their unique facial features. It offers a more secure, convenient, and efficient method of granting or denying access compared to traditional methods like ID cards, PINs, or keys.


Physical access control systems are vital for ensuring the security of physical spaces, buildings, and restricted areas. By understanding the different types of physical access control systems available, organizations can choose the most appropriate solution for their specific needs. Whether it’s the traditional key-based approach, the convenience of card-based systems, the high-security provided by biometric authentication, or the cost-effectiveness of keypad/PIN-based systems, implementing the right physical access control measures is essential for maintaining a secure environment.