Embedded fingerprint acquisition instrument

A fingerprint collector, embedded technology, applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems of complex output port communication interface, cumbersome control protocol, etc., to improve system flexibility, avoid communication interface and The effect of controlling the protocol and improving the user experience

Inactive Publication Date: 2014-01-08
SOUTHEAST UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Technical problem to be solved: Aiming at the deficiencies in the prior art, the present invention provides an embedded fingerprint collector, which solves the technical problems in the prior art that fingerprint collection must rely on the work of the upper computer, the communication interface of the output port is complicated, and the control protocol is cumbersome.

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] An embedded fingerprint collector includes a fingerprint image collector 1, an embedded main control module 2, an external memory 4, an LCD display 5 and a fingerprint power supply module 9.

[0026] The embedded main control module 2 is connected with the fingerprint image collector 1, the external memory 4 and the LCD liquid crystal display 5 respectively, and is powered by the fingerprint power supply module 9, and the external memory 4 is an SD card; The control module 2 is based on the Linux operating system and the USB video device driver, including main controller, internal memory, USB interface control chip USB3343 and peripheral interfaces and other related circuits.

[0027] The main controller of the embedded main control module 2 is the core component of the embedded fingerprint collector, and with its support, the collection, display, storage of fin...

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Abstract

The invention discloses an embedded fingerprint acquisition instrument. The embedded fingerprint acquisition instrument comprises a fingerprint image acquisition device, an embedded master control module, an external memory, an LCD (liquid crystal display) and a fingerprint power supply module; the fingerprint image acquisition device acquires a fingerprint and is connected to the embedded master control module through a USB (universal serial bus) interface; an image size selection button, an image format selection button, a fingerprint sampling button, a fingerprint display button, a fingerprint storage button and a fingerprint image display area are arranged on a GUI (graphical user interface). The embedded fingerprint acquisition instrument can work without relying on a PC (personal computer) serving as an upper computer; the USB interface has a simple communication protocol and high universality; a visualization image is operated visually; subsequent development is convenient.

Description

technical field [0001] The invention relates to the field of applied electronic technology and the field of biometric identification technology, in particular to a fingerprint collector based on an embedded system. Background technique [0002] Ordinary images can be directly sampled by cameras and other equipment and stored at any time. Unlike ordinary photos, fingerprint images cannot be easily collected and stored, making how to effectively obtain fingerprint information has become an important issue. To solve this problem, people have explored and designed many fingerprint collection schemes and special fingerprint collection structures. [0003] At present, there are many traditional fingerprint collection modules on the market, which mainly use optical and electrical methods to collect fingerprints. The general problems of these acquisition modules are: 1. They need to rely on the control of the PC host computer and cannot work independently, which is not conducive to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
Inventor 齐志杨廉萍李志凌明杨军时龙兴
Owner SOUTHEAST UNIV
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