In earlier days, password systems were introduced mainly for security. Over time, hackers found ways to break the password security systems. Subsequently, identity cards were developed. In some companies this system is still being used. However, security issues arise when restricted locations or confidential resources require careful control. Identity card readers cannot fulfill this need. Thus more secure security systems are needed. Market demand has moved toward biometric access control systems based on physical and behavioral characteristics. Physical traits appertain to the shape of one’s body; fingerprints; palm print; and face recognition (face recognition includes the distance between the two eyes, the distance between the nose and ear, the size of the nose, any facial blot or blemish etc.). The latest technology uses eye retina scanners.
Behavioral traits include typing rhythm which requires the person to type some words, thereby identifying the person based on his/her typing rhythm. Another behavioral trait is voice. There are many systems that utilize physical and behavioral traits.
How Biometric Access Control Systems Operate
The biometric access control system works on verification. A single system can consider more than one trait, which means that the system verifies all physical criteria. The biometric access control system identifies the person who wants to access secure resources then matches this with data stored in a database. On the basis of this data, the system verifies who the person is. If this data is not verified, the person is allowed access to the secure premises or resources. Biometric systems can also identify a particular person in a group of people, verifying data in the same way as above. When a match occurs, the system alerts the administrator.
This system is a great investment. It only requires a once-off payment and no maintenance is necessary – no hidden costs! This system requires the end-user creates a database by first entering the data of authorized persons. This data must match that on the database to allow authorised persons access to the secure resource(s). The security level of biometric access control systems is very high compared to systems based on password or identity cards. Biometric systems would require duplicating biometric traits to hack, which is very hard, in-fact nearly impossible. Therefore this type of system provides the highest level of security.
These days biometric access control systems are popular worldwide. Even biometric passports have become a trend. Biometric access control systems are very fast and great to use in areas that are always filled with people.