Electronic lock with function of preventing cracked unlocking by detaching connecting wire

Abstract

The invention discloses an electronic lock with a function of preventing cracked unlocking by detaching a connecting wire. The electronic lock comprises a password input device, a singlechip microcomputer, a central monitoring system and a door opening / closing driving circuit, wherein the singlechip microcomputer comprises a FLASH module and a communication module; the central monitoring system is a microcomputer which comprises a recording module, a comparison module and an instruction module; the password input device is used for inputting unlocking information into the electronic lock; the FLASH module is connected with the password input module and can be used for asynchronously updating an encryption algorithm and performing real-time algorithm encryption on the inputted unlocking information; the recording module is used for recording preset unlocking information; the communication module is connected with the FLASH module and the recording module and is used for performing real-time algorithm encryption on the preset unlocking information; the comparison module is connected with the recording module and the FLASH module and is used for comparing the preset unlocking information subjected to the real-time algorithm encryption with the inputted unlocking information subjected to the real-time algorithm encryption; the instruction module is connected with the comparison module and the door opening / closing driving circuit and is used for instructing the door opening / closing driving circuit to work after correct comparison of the comparison module. The electronic lock can be used for effectively preventing the cracked unlocking by detaching the connecting wire, is higher in safety performance and has good practicality.

Description

technical field [0001] The invention belongs to the technical field of door lock equipment, and in particular relates to an electronic lock capable of preventing disassembly and wiring from cracking and unlocking. Background technique [0002] Electronic door locks refer to the use of programmable memory and data reading devices, whose keys are difficult to copy. There is a dedicated electronic chip in the key, usually 3.5×3.5mm, which stores a specific code. When the key is inserted into the lock hole, the password is sent to the memory in the lock, and a magnetic field is generated at the same time, and a voltage is generated in the coil on the chip, which is used as the unlocking power supply. If the password in the key matches the lock, the lock is opened . With the development, electronic locks have gradually developed into multiple categories, such as combination locks, fingerprint locks, radio frequency identification locks and so on. [0003] The traditional ele...

AI Technical Summary

Problems solved by technology

[0003] The traditional electronic lock information is not encrypted, and the ROM chip that records the password is easy to be replaced and cracked. The actual form is that the electronic lock case is violently disassembled and the circuit wires are assembled, or another electronic lock bridge of the same type can be cracked. The electronic lock is thus cracked. The reason for this is that the existing electronic locks are all self-contained systems, and there is no corresponding monitoring system connection.

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