Multi-directional directional gateway, access direction detection system and access direction detection method

The invention relates to a multi-directional directional gateway, which comprises a shell, a bracket, a main control unit and a plurality of directional receiving units. Each directional receiving unit comprises a wireless radio frequency chip and a directional antenna connected with the wireless radio frequency chip and is used for receiving the wireless radio frequency signal sent by the signalsource and obtaining a unique identification code and a signal intensity value. The main control unit comprises a microcontroller module and a mobile communication module. The microcontroller module is used for determining an area where the signal source is located according to different signal intensity values when each directional receiving unit receives the same wireless radio frequency signal;and determining the moving direction and time of the signal source according to the change of the initial area and the final area, and finally uploading related data including the unique identification code and the correspond