| 摘要 |
The invention describes a device and a method for finding an actual or a virtual reference point on mobile equipment or implement. In agricultural technology the control and mapping of working processes as a function of the instantaneous position of the equipment on the field is gaining more and more importance. With increasing precision of the navigation systems, further possible applications are opening up. As a result of the higher precision of satellite navigation systems, the changes in inclination and direction of the equipment also have an effect on the measured position of the equipment. This effect is of the order of magnitude of the precision of modern-day navigation equipment and is therefore also taken into consideration in position finding according to the invention. For this the inclinations and direction of the machine referred to a predefined neutral position are determined and also calculated when finding any reference position. With the aid of the invention the exact position values of the navigation antenna can be converted to a reference point, which is important for the working process. This reference point can for example represent the position of the cutterbar edge or current product edge of a fertilizer spreader. In an advantageous embodiment, when determining the position of the reference point, further working parameters such as speeds or positions of implements are taken into consideration or the position of the reference point is regulated with the aid of dynamic parameters such as for example the speed of travel.
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