# US 2018/0024252 A1 · Guidance system with navigation point correction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0024252 A1 - Document ID: US20180024252A1 - Status: Published application - Kind: A1 - Application number: 15/550,849 - Filed: 2016-02-22 - Published: 2018-01-25 - Earliest claimed: 2015-03-02 - Assignees: AGCO International GmbH - Applicants: AGCO International GmbH - Inventors: Theo Vogler; Ludwig Grandl; Tobias Nothdurft - Web page: https://patentgrep.com/patent/US20180024252A1 ## CPC - G01S 19/51: Relative positioning - A01B 69/007: {Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow} - A01B 79/005: {Precision agriculture} - G01C 21/005: {with correlation of navigation data from several sources, e.g. map or contour matching (G01C21/30 takes precedence)} - G05D 1/0278: {using satellite positioning signals, e.g. GPS} - A01B 69/00: Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track - A01C 21/005: {Following a specific plan, e.g. pattern} - A01D 34/86: for use on sloping ground, e.g. on embankments {or in ditches}(undercarriages or frames specially adapted for harvesters or mowers A01D67/00; control mechanisms for harvesters or mowers when moving on slopes A01D75/28) - A01D 67/00: Undercarriages or frames specially adapted for harvesters or mowers (coupling arrangements between animal or tractor and harvester or mower A01B59/00); Mechanisms for adjusting the frame (adjusting devices for the cutter-bar A01D34/28); Platforms - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - A01B: SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL (making or covering furrows or holes for sowing, planting or manuring A01C5/00; mowers convertible to soil working apparatus or capable of soil working A01D42/04; mowers combined with soil working implements A01D43/12; soil working for engineering purposes E01, E02, E21) - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES - A01C: PLANTING; SOWING; FERTILISING (parts, details or accessories of agricultural machines or implements, in general A01B51/00 - A01B75/00) - A01D: HARVESTING; MOWING ## Abstract A system comprises a mobile machine including a first portion and a second portion, a positioning receiver coupled with the first portion of the mobile machine, a sensor for determining a position of the first portion of the mobile machine relative to the second portion of the mobile machine, and one or more computing devices. The one or more computing devices are configured to use information from the positioning receiver to determine a geographic location of the positioning receiver, use information from the sensor to determine a position of the first portion of the mobile machine relative to the second portion of the mobile machine, and adjust a navigation point offset according to the position of the first portion of the mobile machine relative to the second portion of the mobile machine, the navigation point offset being a difference in location between the positioning receiver and a navigation point. ## Claims ### Claim 1 A system comprising: a mobile machine including a first portion and a second portion; a positioning receiver coupled with the first portion of the mobile machine; a sensor for determining a position of the first portion of the mobile machine relative to the second portion of the mobile machine; and one or more computing devices configured to use information from the positioning receiver to determine a geographic location of the positioning receiver, use information from the sensor to determine a position of the first portion of the mobile machine relative to the second portion of the mobile machine, and adjust a navigation point offset according to the position of the first portion of the mobile machine relative to the second portion of the mobile machine, the navigation point offset being a difference in location between the positioning receiver and a navigation point. ### Claim 2 (depends on 1) The system as set forth in claim 1, the one or more computing devices further configured to determine a geographic location of the navigation point by adjusting the geographic location of the positioning receiver according to the navigation point offset. ### Claim 3 (depends on 1) The system as set forth in claim 1, the one or more computing devices further configured to automatically guide the mobile machine using the navigation point. ### Claim 4 (depends on 1) The system as set forth in claim 1, the first portion of the machine being an operator cabin configured to shift relative to the second portion of the machine. ### Claim 5 (depends on 1) The system as set forth in claim 1, the second portion of the machine being a ground-engaging portion. ### Claim 6 (depends on 1) The system as set forth in claim 1, the second portion of the machine being an implement. ### Claim 7 (depends on 1) The system as set forth in claim 1, wherein the machine is a harvester, the first portion is an operator cabin and the second portion is a header. ### Claim 8 (depends on 1) The system as set forth in claim 1, wherein the machine is a harvester, the first portion is a machine chassis and the second portion is a header. ### Claim 9 (depends on 1) The system as set forth in claim 1, wherein the machine is a tractor, the first portion is an operator cabin and the second portion is a chassis. ### Claim 10 (depends on 1) The system as set forth in claim 1, the one or more computing devices further configured to adjust the navigation point offset to compensate for the effects of sloped terrain. ### Claim 11 A system comprising: a mobile machine including three or more portions, each of the portions configured to shift relative to each of the other portions; a positioning receiver coupled with one of the three or more portions of the mobile machine; one or more sensors for determining the relative positions of the three or more portions of the mobile machine; and one or more computing devices configured to use information from the positioning receiver to determine a geographic location of the positioning receiver, use information from the one or more sensors to determine the relative positions of the three or more portions of the mobile machine, and adjust a navigation point offset according to the relative positions of the three or more portions of the mobile machine, the navigation point offset being a difference in location between the positioning receiver and a navigation point. ### Claim 12 (depends on 11) The system as set forth in claim 11, the one or more computing devices further configured to determine a geographic location of the navigation point by adjusting the geographic location of the positioning receiver according to the navigation point offset. ### Claim 13 (depends on 11) The system as set forth in claim 11, the one or more computing devices further configured to automatically guide the mobile machine using the navigation point. ### Claim 14 (depends on 11) The system as set forth in claim 11, the first portion of the mobile machine including an operator cabin, the second portion of the mobile machine including a vehicle chassis, and the third portion of the mobile machine including a ground engaging element. ### Claim 15 (depends on 11) The system as set forth in claim 11, the first portion of the mobile machine including an operator cabin, the second portion of the mobile machine including a vehicle chassis, and the third portion of the mobile machine including an implement. ### Claim 16 A method comprising: automatically determining a geographic location of a positioning receiver, the positioning receiver being coupled with a first portion of a mobile machine; automatically determining a position of the first portion of the mobile machine relative to the second portion of the mobile machine; automatically adjusting a navigation point offset according to the position of the first portion of the mobile machine relative to the second portion of the mobile machine, the navigation point offset being a difference in location between the positioning receiver and a navigation point; and automatically guiding the mobile machine using the navigation point.