CONTROL SYSTEM AND CONTROL METHOD OF CONTROL SYSTEM

A control system includes: a vehicle outside image acquisition unit configured to acquire a vehicle outside image; a first detection unit configured to detect a vehicle outside person based on the vehicle outside image acquired by the vehicle outside image acquisition unit; a second detection unit configured to detect an approach mode for the vehicle outside person detected by the first detection unit; a comparison unit configured to compare the approach mode detected by the second detection unit with a reference approach mode; an authentication unit configured to authenticate whether or not the vehicle outside person detected by the first detection unit is a registered user; and a door control unit configured to control a door of the vehicle according to a comparison result of the comparison unit when the authentication unit authenticates that the vehicle outside person is the registered user.