Access control system based on two-dimensional face recognition

The invention discloses an access control system based on two-dimensional face recognition. According to the system, firstly, a user reference photo is firstly uploaded to a server to generate 128 reference characteristic parameters, and the 128 reference characteristic parameters are saved. When a to-be-recognized user is close to a door lock system, a photo is shot by using a camera, whether a face exists or not is recognized, then, a face recognition module is triggered to identify whether a real person exists or not, and next, characteristic parameters of 128 to-be-recognized faces are formed and are compared with the reference characteristic parameters; and when the comparison is passed, a door lock is unlocked by the system, and user access information is recorded. If a person staysfor overlong time and fails in recognization for many times, the photo of the person is recorded and is sent on a website or an App to remind the safety of a preset user, and the user can also temporarily unlock the system th