Fingerprint and palm print, voice and weight combined recognition access control system based on FPGA (Field Programmable Gate Array)

Abstract

The invention discloses a fingerprint and palm print, voice and weight combined recognition access control system based on an FPGA (Field Programmable Gate Array). The fingerprint and palm print, voice and weight combined recognition access control system comprises an FPGA data processing module, a fingerprint and palm print acquisition unit, a voice acquisition unit, a weight acquisition unit, a data accessing module, a display module, an access control controller, an access control lock, a loudspeaker, a network protocol firmware and an access control management terminal, wherein the three acquisition units are used for transmitting respective acquired data information to the FPGA data processing module, and transmitting the acquired data information to the data accessing module for storing through the FPGA data processing module or comparing the acquired information with the information stored in the data accessing module; when an identity is judged to be consistent, a judgment result passes and the access control lock is unlocked through the access control controller; when the identity is judged to be inconsistent, arbitration of the management terminal can be applied; after the arbitration, the access control lock is locked through the access control controller when the judgment result does not pass. With the adoption of the manner, the fingerprint and palm print, voice and weight combined recognition access control system based on the FPGA has high safety and practicability, the cost of upgrading and changing generations is relatively low and the computation speed is rapid.

Description

technical field [0001] The invention relates to the improvement of a complex identification access control system, in particular to an FPGA-based complex identification access control system based on fingerprints, voice and weight, which has high security, low upgrade cost, high practicability and faster calculation speed. Background technique [0002] Many companies, hotels, schools, office buildings and other units have installed access control systems, which has improved the level of intelligent management of personnel entering and leaving the unit, and ensured the safety of the unit's property. Although existing access control systems such as magnetic cards and IC cards with single-chip microcomputers as the data processing center have brought a lot of convenience to people, the loss of magnetic cards and IC cards or data being copied by people has brought many problems to the use of traditional magnetic cards and IC card access control systems. A lot of inconvenience. ...

AI Technical Summary

Problems solved by technology

However, a single identification information is easy to be forged, and the upgrade of the single-chip microcomputer needs to replace the hardware as a whole, which brings many difficulties to the user unit

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