32 has a wind sensor 37 which detects both the wind direction and the wind strength and transmits the generated wind sensor signals 44 to data processing device 31 a plurality of sensor signal processing algorithms are stored in data processing device 31 where data processing device 31 devices as a function of characteristic parameters which sensor signal processing algorithm is used for example for tracking i e for generating guide signals 22 combine harvester 32 shown can be controlled for example by means of position sensor signals 19 generated by the gps sensor however image sensor systems generated by image sensor system 26 always present a much more accurate image of territory 46 to be worked so that data processing device 31 decides on the basis of the accuracy defined as a characteristic parameter to select a sensor signal processing algorithm where image sensor signals 28 from image recognition system 26 are used for generating guide signal 22 instead of position signals 19 from the gps sensor in another exemplary embodiment combine harvester 32 is controlled by means of image sensor signals 28 generated by image recognition system 26 using wind sensor signals 44 generated by wind sensor 37 data processing device 31 decides to select a sensor signal processing algorithm which uses image sensor signals 41 from an image recognition system 40 close to the ground to correct image.