Unlocking and door opening system and method based on mobile phone LED light

The invention discloses an unlocking and door opening system and method based on mobile phone LED light.The system comprises a mobile phone and a door lock control circuit arranged on a door, wherein the door lock control circuit is connected with a door lock motor, a light flickering module is arranged in the mobile phone and comprises a password data editing and storing circuit, a data encryption circuit, a binary conversion circuit and a first single-chip microcomputer which are sequentially connected, a wireless transmitting circuit is connected to the binary conversion circuit, and the first single-chip microcomputer is connected with an LED light arranged on the mobile phone; the door lock control circuit comprises a photosensitive sensor, a second single-chip microcomputer, a wireless receiver, a storer and a data comparison circuit, the photosensitive sensor is connected one input end of the data comparison circuit through the second single-chip circuit, the wireless receiver is connected with the sto