Mobile sensor device for a semitrailer train, arrangement of mobile sensor devices on a semitrailer, method for acquiring information for a semitrailer train, central device and semitrailer tractor

1. A mobile sensor device for a semitrailer train with a semitrailer tractor and a semitrailer, comprising:

a recording device for recording information;

a transmission device for transmitting the information to a central device; and

a connection area for detachably coupling the mobile sensor device to the semitrailer;

wherein already existing lines integrated in the semitrailer are used to transmit the information;

wherein the mobile sensor device together with the transmission device is coupled to the semitrailer; and

wherein the transmission device is configured to communicate with the central device via cables already integrated in the semitrailer.

2. The mobile sensor device according to claim 1 , wherein the sensor device is configured to be connected non-positively the semitrailer via the connection area.

3. The mobile sensor device according to claim 1 , wherein the sensor device is configured to be connected positively to the semitrailer via the connection area.

4. The mobile sensor device according to claim 1 , wherein the connection area includes a quick release, a magnet and/or a suction cup.

5. The mobile sensor device according to claim 1 , wherein the recording device includes a camera, a force sensor, an inclination sensor, a LIDAR sensor and/or a RADAR sensor.

6. The mobile sensor device according to claim 1 , wherein the recording device is pivotable and/or displaceable relative to the connection area.

7. The mobile sensor device according to claim 1 , wherein the central device is integrated into the semitrailer tractor.

8. The mobile sensor device according to claim 7 , wherein the central device is integrated into a board computer of the semitrailer tractor, or an external control center.

9. The mobile sensor device according to claim 1 , wherein the connection area is independent of the semitrailer.

10. The mobile sensor device according to claim 1 , wherein the mobile sensor device is configured to be attached to an outer wall of the semitrailer.

11. An arrangement of mobile sensor devices on a semitrailer, wherein the mobile sensor devices are arranged and/or aligned such that, on a basis of the information acquired by a their recording device of the arrangement of mobile sensor devices, a relative orientation between the tractor and the trailer in a coupled and/or uncoupled state, and/or a readiness to couple of the trailer can be determined, wherein already existing lines integrated in the semitrailer are used to transmit the information; and

wherein a front mobile sensor device of the mobile sensor devices is located in a front section of the semitrailer and two lateral mobile sensor devices of the mobile sensor devices are arranged offset relative to one another in a transverse direction, wherein the lateral mobile sensor devices are arranged behind the front mobile sensor device as viewed in a forward direction of travel, and wherein the front mobile sensor device and the lateral mobile sensor devices are arranged in an interface portion between a semitrailer tractor and the semitrailer on an underside of the semitrailer.

12. The arrangement of mobile sensor devices according to claim 11 , wherein a common transmission device is provided for several recording devices.

13. A central device for evaluating information provided by a mobile sensor device, wherein the central device is configured such that by the provided information a relative orientation between a semitrailer tractor and the semitrailer in a coupled and/or uncoupled state, and/or a readiness to couple can be determined, wherein already existing lines integrated in the semitrailer are used to transmit the information between a transmission device of the mobile sensor device and the central device where the mobile sensor device is configured to be detachable mounted to the semitrailer.

14. A method for acquiring information for a semitrailer tractor and a semitrailer, comprising:

detachably arranging a mobile sensor device on the semitrailer where the mobile sensor device includes a transmission device;

acquiring information via a recording device of the mobile sensor device; and

transmitting the information to a central device via a transmission device;

wherein already existing lines integrated in the semitrailer are used to transmit the information.

15. The method according to claim 14 , wherein a position of the mobile sensor device is via the information transmitted to the central device.