Patent References 3797517 3902668 Corner system addition for a center pivot irrigation system Mobile mounted remote sensing/application apparatus for interacting with selected areas of interest within a field Corner irrigation system including a GPS guidance system Alignment control for long center pivot irrigation systems 6290151 Irrigation positioning system Corner irrigation system including an ultra wide band (UWB) guidance system Patent #: 6726132 InventorAssigneeApplicationNo. 10814829 filed on 03/31/2004US Classes:239/729, With noncircular coverage239/728, Center pivot701/215, Having multiple GPS antennas or receivers (e.g., differential GPS)701/216, Having an self-contained position computing means (e.g., dead reckoning)702/2, Earth science239/731, With means to detect misalignment702/150Orientation or positionExaminersPrimary: Ganey, Steven J.Assistant: Gorman, Darren Attorney, Agent or FirmInternational ClassesB05B003/00B05B003/18 G01C021/00 G01S003/14 G06G007/78 AbstractA guidance system for controlling the steering of a swing arm on a center pivot irrigation system is provided through the use of two satellite signal receiving antennas associated with a drive tower for the swing arm. The signal receiving antennas are mounted from the swing tower so that one of the antennas is in a position forwardly of a steerable wheel for the tower and the other antenna is located in a position rearwardly of the steerable wheel. The signal receiving antennas are mounted in such fashion that they rotate in a direct relation to the steering of the steerable wheel so as to provide position information for the steering of the drive tower that more efficiently and effectively maintains the drive tower on a desired path of travel.Field of SearchWith noncircular coverageCenter pivot MOBILE DISTRIBUTOR Irrigation device Nozzles spaced along mobile pipeline Including means allowing articulation of adjacent pipe sections With means to detect misalignment Including means allowing articulation of adjacent pipe sections With means to detect misalignment Guided translating distributor Supply line traversing means Wheel mounted for rotation about longitudinal axis of pipeline Longitudinal movement of pipeline Propelled or guided translating distributor Track guided (e.g., rolling stock) Having multiple GPS antennas or receivers (e.g., differential GPS) Having an self-contained position computing means (e.g., dead reckoning) Construction or agricultural-type vehicle (e.g., crane, forklift) Employing position determining equipment Using Global Positioning System (GPS) Means to improve accuracy of position or location Irrigation | |