Access control system based on biological characteristics

Abstract

The invention provides an access control system based on biological characteristics. The system comprises a smart card identification device, a database, an infrared distance meter, an iris identifierand an access control driving device, wherein the smart card identification device is in wired connection with the database and used for identifying the identity of a target person; the database is in wired connection with the iris identifier, stores a standard iris image of the person, and transmits the standard iris image of the target person to the iris identifier; the infrared distance meteris in wired connection with the iris identifier and used for detecting the distance between eyes of the target person and the iris identifier; the iris identifier is in wired connection with the access control driving device and used for acquiring and identifying the iris images of the target person. The iris identification technology with improved identification accuracy is applied to the accesscontrol system, so that safety performance of the access control system is greatly improved, and guarantee is provided for personal and property safety of users.

Description

Technical field [0001] The invention relates to the field of identity recognition access control systems, in particular to a biometric access control system. Background technique [0002] With the development of the times and the advancement of science and technology, people’s living standards continue to improve, and attention to indoor safety is also gradually increasing. At present, most household doors are prohibited from mechanical locks, and they are used in slightly high-end places. IC card access control, and fingerprint identification access control is also used for some occasions with high safety factor requirements. It is true that fingerprint identification access control is an access control with higher safety factor than traditional access control, but because fingerprints exist on the surface of the human body, they are easily worn When it is worn out, fingerprint recognition access control often fails to play its due role. [0003] In order to avoid the shortcoming...

AI Technical Summary

Problems solved by technology

[0002] With the development of the times, the advancement of science and technology, people's living standards continue to improve, and the attention to indoor safety is gradually increasing. At present, most of the family doors are forbidden to use mechanical locks, and slightly higher-end places will use them. IC card access control, and fingerprint recognition access control is also used in some occasions that require a high safety factor. It is true that fingerprint recognition access control is a higher security factor than traditional access control, but because fingerprints exist on the surface of the human body, they are extremely susceptible to wear and tear. , when subjected to wear and tear, the fingerprint identification access control often cannot play its due role

[0003] In order to avoid the shortcomings of fingerprint recognition access control, people began to use iris recognition access control. The iris is an image that exists in the human eye and will not change after birth. It has strong uniqueness and stability. It is undoubtedly that iris recognition is applied to the field of access control. It will greatly enhance the security performance of access control, but in the prior art, the processing results for the light spots in the iris image are not ideal enough, so that in the feature extraction, it is impossible to accurately extract the features of the target iris image, which makes the existing iris image The effect of identifying access control is greatly reduced

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