The fingerprint sensor lock is convenient, fast and accurate. Let me introduce the working principle of the fingerprint sensor lock. Human skin consists of three parts: the epidermis, the dermis and the subcutaneous tissue. The fingerprint is the line on the epidermis. Due to the genetic characteristics of human beings, although fingerprints are available to everyone, they are different. It has not been found that the two fingerprints are identical in the world, and its shape characteristics are fixed.
        The fingerprint sensor lock determines the fingerprint as the key according to the uniqueness of each person's fingerprint. The personal fingerprint is stored in advance by pre-archiving in the system. When the user needs to access, the fingerprint sensor collects the feature information of the user fingerprint, and passes the fingerprint feature value to the fingerprint identification chip for analysis and comparison, and determines whether the user has the access right. If the user has the required authority, after the verification is passed, the fingerprint identification chip outputs a control signal to drive the gated DC motor to realize the control of the door; if the user does not have the corresponding authority, the verification failure information is given after the verification.

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