Fingerprint acquisition device
A fingerprint collection and fingerprint technology, applied in the electronic field, can solve the problems of different sizes of fingerprint images, different sizes of fingerprint images, unfavorable storage and processing of fingerprint images, etc., and achieve the effect of uniform size
Inactive Publication Date: 2018-05-25
NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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Problems solved by technology
However, when the finger of the collected person is placed on the fingerprint detection module, the collected fingerprints of different collected persons may have different sizes of fingerprint images due to the different thickness of the collected person's finger.
Therefore, the fingerprint images collected by existing fingerprint collection devices may have different sizes, which is not conducive to the preservation and processing of fingerprint images.
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] In the following detailed description, when an element is referred to as being "on" another element, it may be directly on the other element, or intervening elements may also be provided. Also, relative terms such as "inner," "outer," "on," "under," "in," "outside," and similar terms may be used herein to describe the relationship between one element and another region. relative relationship.
[0019] In addition, the drawings provided in ...
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The invention provides a fingerprint acquisition device. The fingerprint acquisition device comprises a first base, a second base and a fingerprint detection module, wherein the first base and the second base are stacked in the first direction, the first base and the second base are provided with a gap therebetween, the gap is less than or equal to a first preset value, the fingerprint detection module is used for acquiring a user fingerprint, the fingerprint detection module is fixed at the side, which is close to the second base, of the first base, the second base is provided with a throughhole, the second base can move in a reciprocating manner in the second direction relative to the first base, and the fingerprint detection module is exposed through the through hole when the second base moves by a first preset distance relative to the first base so as to enable the fingerprint detection module to perform acquisition on the user fingerprint through the through hole. Fingerprint images acquired by the fingerprint acquisition device are uniform in size, thereby being convenient for establishing a unified fingerprint database.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a fingerprint collection device. Background technique [0002] Fingerprints usually refer to the uneven lines on the surface of the finger pulp. Human fingerprints are caused by genetics and environment. Therefore, although everyone has fingerprints, each person's fingerprints are different. Therefore, fingerprints can be used for identification, certificate anti-counterfeiting and other aspects. A fingerprint collection device is a precision electronic instrument that utilizes the different characteristics of human fingerprints for identification. The working principle of the fingerprint collection device includes four functions: collecting fingerprint images, extracting fingerprint features, saving data and performing fingerprint comparison. Among them, reading the fingerprint image is the most basic and important function of the fingerprint collector. Imaging is perform...
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IPC IPC(8): G06K9/00
CPCG06V40/13
Inventor 朱文龙
Owner NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH