Non-contact 3D fingerprint door access system

Abstract

The invention provides a non-contact 3D fingerprint door access system which comprises a main control machine, a 3D fingerprint acquirer, a door access controller, an electronic lock, alarm equipmentas well as a camera, an imaging system and a standby power supply system. The door access system is complete in structure, applicable to places such as various residential communities, families and schools, and is capable of reading fingerprint patterns to form three-dimensional images to recognize dust fingers, cracking fingers and unclear fingers in time, and the possibility of imitation is avoided; due to the alarm system, a video system and the standby power supply system, the security and the use convenience of the door access system are further improved.

Description

technical field [0001] The invention mainly relates to an access control system, in particular to a non-contact 3D fingerprint access control system. Background technique [0002] The access control system is the entrance and exit control system. It is a system that controls the entrance and exit passages. The functions of the access control system include access authority management, access control recording function, real-time monitoring function, abnormal alarm function, etc. Nowadays, various communities, campus dormitories, and families And so on all adopt various electronic access control systems to protect safety. [0003] At present, the commonly used access control system is the fingerprint access control system, but there are certain disadvantages in the ordinary fingerprint access control system. The fingerprint identification method commonly used in the market is optical fingerprint, which can only scan the surface of the finger skin, and what it collects is only...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used access control system is the fingerprint access control system, but there are certain disadvantages in the ordinary fingerprint access control system. The fingerprint identification method commonly used in the market is optical fingerprint, which can only scan the surface of the finger skin, and what it collects is only a plane picture. , the system has the following disadvantages: high requirements on the environment, clear fingerprint path is required, artificial fingers such as "fingerprint sleeves" are easy to get away with it, and the texture cannot be affected by slight influences, such as the fingerprint on the finger is smoothed or the fingerprint on the finger There are too many wrinkles and frequent changes or peeling on the fingers, etc. For such fingerprint recognition, the error rate is high and the rejection rate is high. In some occasions where there are many people, sometimes people swipe their fingerprints many times before being recognized, which affects the efficiency of entering the door. It leads to queuing up and wasting everyone's time. Moreover, the access control system cannot be used during a power outage, and the monitoring room cannot control the gate. people's normal life

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