A door system includes a corridor sized to allow humans to move through the corridor, the corridor having a first door located at a first end; a second door located at the second end; a controller operatively connected to the first and second doors for controlling the first and second doors; a first sensor oriented to detect an object on the floor, the first sensor operatively connected to the controller and a second sensor oriented to detect an object above the floor in the corridor wherein the second sensor is operatively connected to the controller and the controller is configured to one of: a) turn off the second sensor when the first sensor detects an object on the floor and b) not respond when the second sensor detects and object above the floor when the first sensor detects and object on the floor.

A door system includes a corridor sized to allow humans to move through the corridor, the corridor having a first door located at a first end; a second door located at the second end; a controller operatively connected to the first and second doors for controlling the first and second doors; a first sensor oriented to detect an object on the floor, the first sensor operatively connected to the controller and a second sensor oriented to detect an object above the floor in the corridor wherein the second sensor is operatively connected to the controller and the controller is configured to one of: a) turn off the second sensor when the first sensor detects an object on the floor and b) not respond when the second sensor detects and object above the floor when the first sensor detects and object on the floor.

A one-way passage system (1) comprises an entrance door arrangement (2a) and offset therefrom an exit door arrangement (2b). First and second side wall arrangements (3a, 3b) are provided therebetween, thereby defining a passage area (4). A sensor device (5) can detect persons (10): a) before the entrance door arrangement (2a); b) in the passage area (4) and/or after the exit door arrangement (2b). A control device is configured to enter a safety operating mode and to close the entrance door arrangement (2a) when an analysis of sensor data indicates that a person (10): a) in the passage area (4) goes back in the direction of the entrance door arrangement (2a); and/or b) goes back after the exit door arrangement (2b) in the direction of the passage area (4). An illumination device (20), which is arranged in the passage area (4) can illuminate the passage area in different colors. The control device can enter different operating modes, wherein the entrance door arrangement (2a) and the exit door arrangement (2b) are controlled accordingly depending on the operating mode, and wherein the illumination device (20) illuminates the passage area (4) with different colors depending on the operating mode.

A one-way passage system (1) comprises an entrance door arrangement (2a) and offset therefrom an exit door arrangement (2b). First and second side wall arrangements (3a, 3b) are provided therebetween, thereby defining a passage area (4). A sensor device (5) can detect persons (10): a) before the entrance door arrangement (2a); b) in the passage area (4) and/or after the exit door arrangement (2b). A control device is configured to enter a safety operating mode and to close the entrance door arrangement (2a) when an analysis of sensor data indicates that a person (10): a) in the passage area (4) goes back in the direction of the entrance door arrangement (2a); and/or b) goes back after the exit door arrangement (2b) in the direction of the passage area (4). An illumination device (20), which is arranged in the passage area (4) can illuminate the passage area in different colors. The control device can enter different operating modes, wherein the entrance door arrangement (2a) and the exit door arrangement (2b) are controlled accordingly depending on the operating mode, and wherein the illumination device (20) illuminates the passage area (4) with different colors depending on the operating mode.