Handwritten signature unlocking system and unlocking method

Abstract

The invention discloses a handwritten signature unlocking system and an unlocking method. The system comprises a touch control module, a touch chip and a microprocessor MCU; the touch module comprisesa nano silver wire conductive film; the silver nanowire conductive film comprises a conductive film substrate, a conductive pattern formed by nano silver wires is attached to the conductive film basematerial; a conductive circuit is included, and the nano silver wire is electrically connected with the conductive circuit; the conductive circuit is connected with the touch chip; the touch chip isused for transmitting a handwritten signature track determined by current change information caused by capacitance change of each coordinate point in a handwritten signature process to the microprocessor MCU; and the microprocessor MCU is used for comparing the handwriting signature track with the signature track stored in the microprocessor MCU to judge whether the signature is correct or not soas to control whether to unlock or not. The signature input for the first time is memorized and stored, the signature input for the second time is compared with the signature input for the first time,and unlocking can be achieved within the set similarity range.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a handwritten signature unlocking system and unlocking method. Background technique [0002] Traditional combination locks are basically mechanical locks or digital combination locks. A series of numbers or symbols are used to open it; while the traditional mechanical combination lock and key-type electronic combination lock have a limited number of passwords, which can be cracked by multiple attempts, and their security can no longer meet the growing use Requirements, especially in some occasions with high safety requirements. At present, with the development of circuit integration technology, single-chip microcomputer has powerful performance and low price, and has been widely used. Using single-chip microcomputer to design code lock, single-chip microcomputer plays the role of judging the correctness and error counting of numbers, displaying and voice broadcasting control fun...

AI Technical Summary

Problems solved by technology

Using single-chip microcomputer to design code lock, single-chip microcomputer plays the role of judging the correctness and error counting of numbers, displaying and voice broadcasting control functions, but the code lock still uses the keyboard to input the password, and the user needs to remember the password. For the convenience of memory, the number of digits is generally limited , it is easy to crack through multiple trial methods, and its security performance is greatly reduced

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