Cellphone-based dynamic two-dimension code access control system

Abstract

The invention discloses a cellphone based dynamic two-dimension code access control system. The cellphone based dynamic two-dimension code access control system comprises a cellphone and an access control device with a two-dimension code identification module, a two-dimension code application module is arranged in the cellphone, a binary string code is generated through twice encryption calculation of a preset secret key, a time parameter and the IMEI (International Mobile Equipment Identity) code of the cellphone, and a two-dimension code image generated by the binary string code is used as a key for opening the door; the two-dimension code image is obtained through scanning of the two-dimension code identification module, and the IMEI code for opening the door and the key generation time are obtained through identification and decoding, the door is opened after verification, and the key which is used for opening the door this time is abolished. The cellphone-based dynamic two-dimension code access control system has the characteristics that one key only can open the door once and can not be copied, the security is high, and the cellphone is used as the carrier of the key to achieve carrying convenience.

Description

[0001] technical field [0002] The invention relates to access control technology, in particular to a mobile phone-based dynamic two-dimensional code access control system. [0003] Background technique [0004] Intelligent access control technology is currently widely used in the access management and control of public places such as building office buildings and intelligent communities. At present, most of the intelligent access control is based on radio frequency card technology, fingerprint technology or facial recognition technology. The radio frequency card technology must require the user to carry the door card with him, which is inconvenient and easy to lose; When there is dirt or wounds on it, it is not easy to identify; and facial recognition technology is expensive and difficult to popularize. In this case, someone proposed the two-dimensional code access control technology: print the two-dimensional code on a piece of paper or save it in the mobile phone, and ...

AI Technical Summary

Problems solved by technology

At present, most of the intelligent access control is based on radio frequency card technology, fingerprint technology or facial recognition technology. The radio frequency card technology must require the user to carry the door card with him, which is inconvenient and easy to lose; When there is dirt or wounds, it is not easy to identify; and facial recognition technology is expensive and difficult to popularize

In this case, someone proposed the two-dimensional code access control technology: print the two-dimensional code on a piece of paper or save it in the mobile phone, and only need to scan the two-dimensional code when using it. This technology is more convenient to use. The cost is also relatively low, but the existing two-dimensional code access control uses fixed two-dimensional code pictures, which are easy to be copied, spread and used, and the security is poor