Intelligent access control system based on radio frequency identification and working method thereof

The invention discloses an intelligent access control system based on radio frequency identification and a working method thereof. The system mainly comprises a radio frequency identification reader, an external antenna, RFID (radio frequency identification) tags and a background radio frequency signal processing server. The working method includes: arranging RFID tag arrays in a monitoring area, utilizing characteristics that wireless radio frequency signals reflected by the tags attenuate when shielded by passer-bys to sense mobility patterns of an object according to the law of signal attenuation of the RFID tag arrays, and displaying and recording getting-in-and-out of personnel within the system in real time by identification of the RFID tags worn by users. The intelligent access control system based on the radio frequency identification and the working method thereof effectively improve the automation level of user identification and relieve physical space constraints brought to people by conventional access control systems, and in-and-out record monitoring of personnel can be provided efficiently by a real-time display system.