Work machine control systems to monitor ground engagement tools and map obstacles

Patent metadata

Field	Value
Publication number	US-12114587-B2
Application number	US-202016918056-A
Country	US
Kind code	B2
Filing date	Jul 1, 2020
Priority date	Oct 31, 2019
Publication date	Oct 15, 2024
Grant date	Oct 15, 2024

Abstract

Work machines, control systems for work machines, and methods of operating work machines are envisioned. A work machine includes a frame structure, a work implement, and a control system. The work implement is coupled to the frame structure and includes at least one ground engagement tool that is configured for movement in response to interaction with an underlying surface in use of the use work machine. The control system is coupled to the frame structure and includes a sensor mounted to the at least one ground engagement tool and a controller communicatively coupled to the sensor.

First claim

The invention claimed is:

1. A work machine comprising:
a frame structure;
a work implement coupled to the frame structure that includes a plurality of ground engagement tools, wherein each of the plurality of ground engagement tools is configured for movement in response to interaction with an underlying surface in use of the work machine; and
a control system coupled to the frame structure that includes a plurality of sensors each mounted to a corresponding one of the ground engagement tools and a controller communicatively coupled to the plurality of sensors, wherein each of the plurality of sensors is configured to provide sensor input indicative of a characteristic of movement of the corresponding ground engagement tool in use of the work machine, wherein the controller includes memory having instructions stored therein that are executable by a processor to cause the processor to receive the sensor input from the plurality of sensors, to identify the presence of one or more obstacles based on the sensor input, and to selectively map, with the aid of a location system, a location of one or more obstacles in response to an identification that one or more obstacles are present to generate event data for a particular field, and wherein the instructions stored in the memory are executable by the processor to cause the processor to determine, based on the sensor input, movement of the ground engagement tools in response to an identification that one or more obstacles are present, and to map the location of the one or more present obstacles in response to a determination of a lack of movement of at least one of the plurality of ground engagement tools,
wherein the instructions stored in the memory are executable by the processor to cause the processor to compare a previous position of one or more obstacles associated with event history data to a current position of one or more detected obstacles associated with the sensor input and to map a location of the one or more detected obstacles in response to a determination that the previous position is not proximate to the current position.

2. The work machine of claim 1 , wherein the instructions stored in the memory are executable by the processor to cause the processor to compare the sensor input provided by the plurality of sensors to a reference event threshold in response to a determination of movement of all of the plurality of ground engagement tools.

3. The work machine of claim 2 , wherein the instructions stored in the memory are executable by the processor to cause the processor to map the location of the one or more present obstacles in response to a determination that the sensor input provided by the plurality of sensors is greater than the reference event threshold.

4. The work machine of claim 1 , wherein:
the control system includes an obstacle detection system coupled to the frame structure and communicatively coupled to the controller;
the obstacle detection system is configured to provide detection input indicative of a presence or absence of one or more obstacles in the particular field;
the instructions stored in the memory are executable by the processor to cause the processor to receive the detection input provided by the obstacle detection system, to identify the presence of one or more obstacles based on the detection input and the sensor input, and to selectively map, with the aid of the location system and based on the detection input and the sensor input, a location of one or more obstacles in response to an identification that one or more obstacles are present to generate event data for the particular field; and
the obstacle detection system includes at least one of the following: a radar detection system, a lidar detection system, a camera-based detection system, or an ultrasonic detection system.

5. The work machine of claim 4 , wherein the instructions stored in the memory are executable by the processor to cause the processor to, in response to the identification that one or more obstacles are present, obtain event history data for the particular field that is indicative of obstacles previously present in the particular field.

6. The work machine of claim 5 , wherein the instructions stored in the memory are executable by the processor to cause the processor to determine whether a position of one or more obstacles associated with the detection input and the sensor input is proximate to a position of one or more obstacles associated with the event history data.

7. The work machine of claim 6 , wherein the instructions stored in the memory are executable by the processor to cause the processor to map a location of the one or more obstacles in response to a determination that the position of the one or more obstacles associated with the detection input and the sensor input is not proximate to the position of the one or more obstacles associated with the event history data.

8. The work machine of claim 6 , wherein the instructions stored in the memory are executable by the processor to cause the processor to establish a trend for the particular field based on the position of the one or more obstacles associated with the detection input and the sensor input and the position of the one or more obstacles associated with the event history data in response to a determination that the position of the one or more obstacles associated with the detection input and the sensor input is proximate to the position of the one or more obstacles associated with the event history data.

9. The work machine of claim 8 , wherein the instructions stored in the memory are executable by the processor to cause the processor to determine whether the trend established for the particular field is consistent upon additional passes when the work machine is positioned proximate to the position of the one or more obstacles associated with the established trend.

10. The work machine of claim 9 , wherein the instructions stored in the memory are executable by the processor to cause the processor to map a location of the one or more obstacles in response to a determination that the trend established for the particular field is not consistent upon additional passes.

11. The work machine of claim 6 , wherein the instructions stored in the memory are executable by the processor to cause the processor to determine whether a position of one or more obstacles associated with the detection input and the sensor input is parallel or perpendicular to a position of one or more obstacles associated with the event history data.

12. The work machine of claim 11 , wherein the instructions stored in the memory are executable by the processor to cause the processor to map a location of the one or more obstacles in response to a determination that the position of the one or more obstacles associated with the detection input and the sensor input is not parallel or perpendicular to the position of the one or more obstacles associated with the event history data.

13. The work machine of claim 11 , wherein the instructions stored in the memory are executable by the processor to cause the processor to establish a trend for the particular field based on the position of the one or more obstacles associated with the detection input and the sensor input and the position of the one or more obstacles associated with the event history data in response to a determination that the position of the one or more obstacles associated with the detection input and the sensor input is parallel or perpendicular to the position of the one or more obstacles associated with the event history data.

14. A control system mounted on a work machine including a

Assignees

• Deere & Co

Inventors

• Sporrer Adam D
• Theilen Ricky B
• Krantz Jeremy D
• Larsen Lucas B

Classifications

• A01B76/00

  Parts, details or accessories of agricultural machines or implements, not provided for in groups A01B51/00 - A01B75/00 · CPC title

• A01B61/042

  with shearing devices · CPC title

• A01B49/02

  with two or more soil-working tools of different kind · CPC title

• A01B19/04

  with two or more tool-frames · CPC title

• A01B79/005 Primary

  Precision agriculture · CPC title