Two-dimensional code dynamic access control system with off-line working ability and unlocking method

Abstract

The invention discloses a two-dimensional code dynamic access control system with off-line working ability and an unlocking method. The two-dimensional code dynamic access control system consists of:a cloud server module, a local area network server module, an intelligent communication terminal module and an access control terminal module. Specifically, the cloud server module includes a cloud key storage unit, an authority setting unit and a two-dimensional code issuing unit. The intelligent communication terminal module includes an authority application unit, a two-dimensional code receiving unit and a two-dimensional code display unit. The access control terminal module includes two-dimensional code scanning unit, a two-dimensional code recognition unit and an unlocking unit. The localarea network server module includes a key verification unit, an authority verification unit and a local key storage unit. The two-dimensional code dynamic access control system with off-line workingability provided by the invention changes the communication mechanism of conventional two-dimensional code access control system, allows the two-dimensional code access control system to achieve dynamic authentication of two-dimensional codes without network, is not only safe but also convenient, and can be widely applicable to many construction sites without network environment.

Description

technical field [0001] The invention relates to the technical field of access control, in particular to a two-dimensional code dynamic access control system and an unlocking method that can work offline. Background technique [0002] With the advancement of technology, the original door lock using keys has been gradually upgraded to an intelligent access control system that can support card swiping and fingerprint recognition. However, these methods still have room for improvement. The use of key cards will generate additional costs for key card production and management. The use of fingerprints cannot work normally when the hands of the user are wet, etc., and the management of fingerprints is also relatively complicated. [0003] The emergence of QR codes can avoid the above problems and provide convenient rights management in a low-cost way. However, QR codes also have certain disadvantages, such as being easy to copy. A person can gain access by photographing another...

AI Technical Summary

Problems solved by technology

If a smart access control is not connected to the Internet, it means that the administrator needs to go to the installation site to modify it, which will cause inconvenience

Another solution is to network smart access control, but this will limit the use of smart access control

In addition, because network communication generally consumes more power, the smart door lock will also require wired power supply, which will increase the difficulty and cost of installation.

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