The invention discloses an offline face
recognition system and an offline face recognition method based on low-power-consumption embedded and
infrared triggering. The offline face recognition method comprises the steps of continuously detecting an
object distance, and returning the
object distance by means of a
voltage value manner; determining whether an object enters a recognition range according to the returned
voltage value, acquiring an image of the image which enters the recognition range, determining whether the acquired image is a face image, if not, displaying error information, and if yes, determining whether the current face image belongs to a moving object, if not, displaying the error information; and if yes, performing matching on the face image and stored information in a face characteristic
database, and outputting a matching result. The offline face
recognition system and the offline face recognition method have advantages of ultralow
power consumption, high mute stability, small size, high convenience in mounting, offline recognition, normal operation without networking, high stability and high reliability in operation.