Handheld fingerprint acquisition device

Abstract

The invention relates to a handheld fingerprint acquisition device. The device comprises a main body and a collection device, and further comprises a protection mechanism and an electric power auxiliary mechanism. The protection mechanism comprises a protection cover, a moving block, a connecting rod, a baffle, a rubber ring and two return assemblies. The electric power auxiliary mechanism comprises an air conveying pipe, a power pipe, a generator, a transmission shaft, fan blades, a dustproof net, a supporting assembly and an air gathering ring. The return assembly comprises a guide groove, aguide rod, a spring and a mounting hole, and the supporting assembly comprises a supporting rod and a mounting bearing. According to the handheld fingerprint acquisition devicem the collection deviceis covered by the protection mechanism, under the protection effect of the protection mechanism, the probability that the collection device is abraded is reduced, the recognition precision of the fingerprint collector is improved, the electric energy can be generated through the electric power auxiliary mechanism, then the electric energy is supplied to the fingerprint collector for use, so thatthe consumption of the fingerprint collector on the external electric energy is reduced, and the energy-saving performance of the fingerprint collector is improved.

Description

technical field [0001] The invention relates to the field of fingerprint collection equipment, in particular to a hand-held fingerprint collection equipment. Background technique [0002] The fingerprint collector is a precision electronic device that uses the different characteristics of human fingerprints for identification. Its working principle includes four functions: collecting fingerprint images, extracting fingerprint features, saving data and comparing fingerprints. Imaging is performed by using the uneven pattern of fingerprints. Usually, we call the convex pattern "ridge", and the concave pattern is called "valley". The process of fingerprint collection is essentially the process of fingerprint imaging. process. The principle is to obtain different optical or current resistance feedback signals according to the geometrical, physical and biological characteristics of ridges and valleys, and use different image processing algorithms to draw fingerprint images accor...

AI Technical Summary

Problems solved by technology

[0003] The collection device of the fingerprint collector in the prior art has no effective protective measures, which makes the collection device prone to wear and tear and reduces the sensitivity of the fingerprint collector. Not only that, but the fingerprint collector in the prior art is on standby for a long time during use. Or the working state, resulting in the fingerprint collector needing to consume a lot of power, reducing the energy-saving performance of the fingerprint collector

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