In one embodiment of the invention, the access control system comprises a door with an integrated mechatronic closing mechanism which is equipped with a receiver device. The receiver device is designed to receive and evaluate capacitive-resistive signals that are emitted by a transmitter and are transmitted via a user's body. The closing mechanism opens or does open the door in accordance with a result of said evaluation. In said one embodiment of the invention, the closing mechanism is battery-operated and has no permanent electric connection to an object that is not located on or in the door.