Cloud door lock control system with identification of time varied 2D codes and images

A cloud door lock control system with identification of time varied 2D codes and images, comprising:

• a cloud device for transmitting a mobile phone APP to a mobile phone;
• the cloud device storing all encryption codes of doors to be opened, time periods for opening the doors, and user's encryption codes;
• the cloud device frequently transmitting the encryption codes of doors to be opened, the time periods for opening the doors, and the user's encryption codes to the mobile phone based on a preset period through a first communication channel and the mobile phone stores these values in a memory;
• a mobile phone APP for receiving the encryption codes of doors to be opened, the time periods for opening the doors, and the user's encryption codes emitted from the cloud device;
• wherein in use, the cloud device further transmits the user's encryption code to a user by a second communication channel;
• the user's encryption code is inputted to a mobile phone with a mobile phone APP to replace the previous user's encryption code stored in the mobile phone APP and then the user's encryption code is stored in the memory in the mobile phone;
• the mobile phone APP includes an encoding unit which uses an specific encrypting code to further encrypting the encryption
• wherein the mobile phone holder's image is transferred to the mobile phone APP by which the mobile phone holder's image is displayable on the mobile phone for determining whether the mobile phone holder is acceptable to pass through the door.