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Traditional access control system
Traditional access control systems generally use information carriers as identification media, such as passwords, keys, IC cards and so on. In essence, this method verifies the objects held by people, not the people themselves. As long as its validity is confirmed, the identity of the person who holds the information carrier is also confirmed. There are obvious loopholes in this method of identifying people by items: if they are lost, legitimate people cannot be authenticated, and various tokens can be easily forged and deciphered. Passwords are easy to be forgotten or stolen, which can't meet people's demand for security.
Fingerprint identification access control system
Among all the human biometric features used for personal identification, fingerprint features were first discovered and applied. But every time a fingerprint is used, the user's fingerprint will be left on the fingerprint collection head, and these fingerprints may be used for copying. In addition, because some people or certain groups have few fingerprint features, it is difficult to image, so they need to be identified many times or cannot be identified.
Face recognition access control system
Face recognition access control system is a computer technology for identity recognition by analyzing and comparing face visual feature information, which has the characteristics of nature, non-coercion and non-contact. At the same time, face recognition uses the unique characteristics of human face that it is not easy to be copied, with high recognition rate and fast recognition speed; It not only saves the trouble of forgetting to bring the key or card, but also saves a lot of costs because the face recognition access control system does not need any media to open the door. For example, people do not need to change locks, keys, IC cards, etc. when changing cars. , just need to re-register the face; In addition, the face recognition access control system can also set access rights according to the situation of people entering and leaving, including different time periods and different access points.
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