Method and device for collecting fingerprint based on capacitive fingerprint head on cloud lock

Abstract

The invention discloses a method and a device for collecting a fingerprint based on a capacitive fingerprint head on a cloud lock. The device comprises the intelligent cloud lock and the semiconductorcapacitive fingerprint head; and a ZigBee module and an MCU are arranged in the intelligent cloud lock. The method comprises the fingerprint collection processes that the intelligent cloud lock collects a fingerprint image; the intelligent cloud lock identifies whether the collected fingerprint image is clear or not, and if the fingerprint image is not clear, a user is prompted to re-input the fingerprint; if the fingerprint image is clear, whether eigenvalues can be generated or not is judged; if the collected fingerprint image cannot generate the eigenvalues, the fingerprint image is re-collected; and if the collected fingerprint image can generate the eigenvalues, the eigenvalues are combined, the fingerprint is re-collected on a fingerprint template, the fingerprint template is storedin the MCU, and the fingerprint is sent to a mobile terminal of the user through the ZigBee module. According to the method and the device for collecting the fingerprint for multiple times based on the semiconductor capacitive fingerprint head on the cloud lock, provided by the invention, the effects of preventing false fingerprints and providing convenience for quick verification are achieved.

Description

technical field [0001] The invention relates to the field of smart home, in particular to a method and device for collecting fingerprints on a cloud lock based on a capacitive fingerprint head. Background technique [0002] With the development of biometric technology, the security of smart door locks is more and more the focus of users' attention. However, most smart door locks on the market use optical fingerprint heads, which originally collect optical images to identify fingerprints. With anti-counterfeiting features, it cannot prevent mucous membrane fingerprints and silicone fingerprints. The semiconductor capacitive fingerprint head can effectively eliminate the problem of false fingerprint identification. The optical fingerprint head is the reflection of the fingerprint ridges and valleys to different images of light. For users with shallow fingerprints, too dry fingerprints or peeling skin, it is easy to misidentify and cannot accurately identify fingerprints. The...

AI Technical Summary

Problems solved by technology

The optical fingerprint head is the reflection of the fingerprint ridges and valleys to different images of light. For users with shallow fingerprints, too dry fingerprints or peeling skin, it is easy to misidentify and cannot accurately identify fingerprints. The requirements are very high, for example, it must be placed in the center, and the inclination angle cannot exceed 30 degrees, etc., otherwise the fingerprint will not be recognized, and convenient and fast identification verification will not be possible.

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