Patents by Inventor David August Johnson

David August Johnson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240138279
    Abstract: Systems and non-transitory computer-readable media for creating a field guidance plan template. Receiving, via an interface of an off-road work vehicle, a set of attributes associated with a defined area of a work field for a field operation of the off-road work vehicle. The set of attributes define features of the work field. Generating a field guidance plan for the defined area of the work field. The field guidance plan designed to assist the off-road work vehicle in traversing the defined area during the field operation. The field guidance plan also including a set of field guidance lines. Extracting the set of attributes of each field guidance line of the set of field guidance lines in the field guidance plan. Creating and storing a field guidance plan template based at least in part on the set of attributes the field operation.
    Type: Application
    Filed: October 31, 2022
    Publication date: May 2, 2024
    Inventors: Glen L. Oetken, David August Johnson
  • Patent number: 11778935
    Abstract: A digital fence of a work area is generated and loaded into a machine control system that controls an off-road machine. The machine control system detects whether the off-road machine is within a threshold distance of the digital fence and automatically controls operating parameters of the off-road machine when the off-road machine is within a threshold distance of the digital fence.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: October 10, 2023
    Assignee: Deere & Company
    Inventors: David August Johnson, Curtis A. Maeder, Jeffrey M. Tott, Megan L. Leininger
  • Patent number: 9464410
    Abstract: Control of a vehicle to perform a task employs first control input provided by a human operator and second control input provided by an automated controller. A relationship between the first control input and the second control input is determined. Either the first control input or the second control input is used to control the vehicle to perform the task based on the determined relationship. An indicator may be used to indicate to the operator when the control input provided by the human operator is being used to control the vehicle.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: October 11, 2016
    Assignee: DEERE & COMPANY
    Inventors: David August Johnson, Julian Sanchez, Eric R. Anderson, Mark P. Sahlin
  • Patent number: 9072218
    Abstract: A robotic mower sensor assembly for detecting a boundary wire signal. The sensor assembly includes a plurality of analog inductive sensors with a first inductive sensor oriented along a first axis and a second inductive sensor oriented along a second, different axis. Each inductive sensor is configured to generate a signal indicative of the distance of the robotic mower from the boundary wire. A control unit communicating with the sensor assembly is configured to operate the robotic mower in response to the signals from the sensor assembly which are indicative of the distance of the robotic mower from the boundary wire.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: July 7, 2015
    Assignee: DEERE & COMPANY
    Inventors: David August Johnson, Patrick Wilson Cross, Colin Eric Das
  • Patent number: 9026299
    Abstract: A navigation system for a robotic mower includes a boundary wire defining a boundary of a specified area; a boundary sensor assembly, and a vehicle control unit with a navigation arbitration logic configured to arbitrate a selection between at least a straight propagation mode and an arc propagation mode. The navigation arbitration module is configured to select the arc propagation mode when the sensor assembly indicates that the mower approaches the boundary of the specified area and has a distance from the boundary that is equal to or smaller than a specified turn distance. The boundary sensor assembly generates a sensor signal representative of a measured yaw angle of the mower relative to the boundary wire, and the navigation arbitration logic is configured to generate output information representative of a desired yaw angle dependent on an assumed actual yaw angle.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: May 5, 2015
    Assignee: Deere & Company
    Inventors: David August Johnson, Colin Eric Das
  • Patent number: 8744626
    Abstract: The different illustrative embodiments provide a system for autonomous machine management comprising a number of autonomous machines, a number of nodes, a performance estimation module, and a navigation system. The number of autonomous machines is configured to perform area coverage tasks in a worksite. The number of nodes is configured to define a number of worksite areas for the worksite. The performance estimation module is executed by a processor unit and configured to calculate a percentage of work completed in the number of worksite areas. The navigation system is configured to operate an autonomous machine to perform the area coverage tasks and move between the number of worksite areas.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: June 3, 2014
    Assignee: Deere & Company
    Inventors: David August Johnson, Noel Wayne Anderson, Kirk Narum Eisenbeis
  • Publication number: 20140012418
    Abstract: A robotic mower sensor assembly for detecting a boundary wire signal. The sensor assembly includes a plurality of analog inductive sensors with a first inductive sensor oriented along a first axis and a second inductive sensor oriented along a second, different axis. Each inductive sensor is configured to generate a signal indicative of the distance of the robotic mower from the boundary wire. A control unit communicating with the sensor assembly is configured to operate the robotic mower in response to the signals from the sensor assembly which are indicative of the distance of the robotic mower from the boundary wire.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 9, 2014
    Applicant: DEERE & COMPANY
    Inventors: David August Johnson, Patrick Wilson Cross, Colin Eric Das
  • Publication number: 20140012453
    Abstract: A navigation system for a robotic mower includes a boundary wire defining a boundary of a specified area; a boundary sensor assembly, and a vehicle control unit with a navigation arbitration logic configured to arbitrate a selection between at least a straight propagation mode and an arc propagation mode. The navigation arbitration module is configured to select the arc propagation mode when the sensor assembly indicates that the mower approaches the boundary of the specified area and has a distance from the boundary that is equal to or smaller than a specified turn distance. The boundary sensor assembly generates a sensor signal representative of a measured yaw angle of the mower relative to the boundary wire, and the navigation arbitration logic is configured to generate output information representative of a desired yaw angle dependent on an assumed actual yaw angle.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 9, 2014
    Applicant: DEERE & COMPANY
    Inventors: David August Johnson, Colin Eric Das
  • Patent number: 8386133
    Abstract: A first sensor detects a boom angle of a boom with respect to a support. An attachment is coupled to the boom. A second cylinder is associated with the attachment. A second sensor detects an attachment angle of the attachment with respect to the boom. An accelerometer detects an acceleration or deceleration of the boom. A switch accepts a command to enter a ready position state from another position state. A controller controls the first hydraulic cylinder to attain a boom angle within the target boom angular range and for controlling the second cylinder to attain an attachment angle within the target attachment angular range associated with the ready position state in response to the command in conformity with at least one of a desired boom motion curve and a desired attachment motion curve.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: February 26, 2013
    Assignee: Deere & Company
    Inventors: Mark Peter Sahlin, Jason Meredith, Jerry Anthony Samuelson, David August Johnson, Eric Richard Anderson
  • Patent number: 8359142
    Abstract: A method of controlling application of a substance to vegetation using data obtained via a mobile machine is provided. A height of the vegetation is measured during a scheduled task of the mobile machine. The measured height of the vegetation is compared with a calculated height of the vegetation. Then, an amount of the substance applied by an irrigation system to an area containing the vegetation is adjusted based on a difference between the measured height of the vegetation and the calculated height of the vegetation.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: January 22, 2013
    Assignee: Deere & Company
    Inventors: Joshua D. Hoffman, Noel Wayne Anderson, David August Johnson, Russell Thacher, Kirk Eisenbeis
  • Publication number: 20120293316
    Abstract: Control of a vehicle to perform a task employs first control input provided by a human operator and second control input provided by an automated controller. A relationship between the first control input and the second control input is determined. Either the first control input or the second control input is used to control the vehicle to perform the task based on the determined relationship. An indicator may be used to indicate to the operator when the control input provided by the human operator is being used to control the vehicle.
    Type: Application
    Filed: May 19, 2011
    Publication date: November 22, 2012
    Inventors: David August Johnson, Julian Sanchez, Eric R. Anderson, Mark P. Sahlin
  • Patent number: 8295979
    Abstract: A method for scheduling mowing tasks by a robotic mower is provided. An estimated height of grass cut by the robotic mower is determined for a predetermined number of past mowing tasks. The estimated height of grass cut is compared with a predicted height of grass in an operating environment for the robotic mower. Then, a mowing schedule for the robotic mower is adjusted by decreasing a time between mowing tasks in response to the estimated height of grass cut being greater than the predicted height of grass. Alternatively, the mowing schedule for the robotic mower is adjusted by increasing the time between mowing tasks in response to the estimated height of grass cut being less than the predicted height of grass.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: October 23, 2012
    Assignee: Deere & Company
    Inventors: Russell Thacher, Kirk Eisenbeis, David August Johnson, Noel Wayne Anderson, Joshua D. Hoffman
  • Publication number: 20120256752
    Abstract: A battery charging management technique and apparatus to manage battery charge in order to extend the operating life of the battery while meeting the energy needs of both scheduled and unscheduled discharges of the battery.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 11, 2012
    Inventors: James William Musser, David August Johnson, Peter Finamore, Noel Wayne Anderson
  • Patent number: 8285460
    Abstract: A method of controlling application of a substance to vegetation using data obtained via a mobile machine is provided. A height of the vegetation is measured during a scheduled task of the mobile machine. The measured height of the vegetation is compared with a calculated height of the vegetation. Then, an amount of the substance applied by an irrigation system to an area containing the vegetation is adjusted based on a difference between the measured height of the vegetation and the calculated height of the vegetation.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: October 9, 2012
    Assignee: Deere & Company
    Inventors: Joshua D. Hoffman, Noel Wayne Anderson, David August Johnson, Russell Thacher, Kirk Eisenbeis
  • Publication number: 20120173087
    Abstract: A method of controlling application of a substance to vegetation using data obtained via a mobile machine is provided. A height of the vegetation is measured during a scheduled task of the mobile machine. The measured height of the vegetation is compared with a calculated height of the vegetation. Then, an amount of the substance applied by an irrigation system to an area containing the vegetation is adjusted based on a difference between the measured height of the vegetation and the calculated height of the vegetation.
    Type: Application
    Filed: March 12, 2012
    Publication date: July 5, 2012
    Applicant: DEERE & COMPANY
    Inventors: Joshua D. Hoffman, Noel Wayne Anderson, David August Johnson, Russell Thacher, Kirk Eisenbeis
  • Patent number: 8204653
    Abstract: A first hydraulic cylinder is associated with a boom. A first sensor detects a boom position based on a first linear position of a first movable member associated with the first hydraulic cylinder. An attachment is coupled to the boom. A second cylinder is associated with the attachment. A second sensor detects an attachment position based on a second linear position of a second movable member associated with the second hydraulic cylinder. A switch accepts a command to enter a ready position state from another position state. A controller controls the first hydraulic cylinder to attain a target boom position and for controlling the second cylinder to attain a target attachment position associated with the ready position state in response to the command.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: June 19, 2012
    Assignee: Deere & Company
    Inventors: Mark Peter Sahlin, Jason Meredith, Jerry Anthony Samuelson, David August Johnson, Eric Richard Anderson
  • Patent number: 8200398
    Abstract: A first sensor detects a boom position of a boom based on a first linear position of a first movable member of a first hydraulic cylinder. A second sensor detects an attachment position of an attachment based on a second linear position of a second movable member of a second hydraulic cylinder. An accelerometer detects an acceleration or deceleration of the boom. A switch accepts a command to enter a ready position state from another position state. A controller controls the first hydraulic cylinder to attain a target boom position and for controlling the second cylinder to attain a target attachment position associated with the ready position state in response to the command in conformity with at least one of a desired boom motion curve and a desired attachment motion curve.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: June 12, 2012
    Assignee: Deere & Company
    Inventors: Mark Peter Sahlin, Jason Meredith, Jerry Anthony Samuelson, David August Johnson, Eric Richard Anderson
  • Publication number: 20110295424
    Abstract: The different illustrative embodiments provide a system for autonomous machine management comprising a number of autonomous machines, a number of nodes, a performance estimation module, and a navigation system. The number of autonomous machines is configured to perform area coverage tasks in a worksite. The number of nodes is configured to define a number of worksite areas for the worksite. The performance estimation module is executed by a processor unit and configured to calculate a percentage of work completed in the number of worksite areas. The navigation system is configured to operate an autonomous machine to perform the area coverage tasks and move between the number of worksite areas.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 1, 2011
    Inventors: David August Johnson, Noel Wayne Anderson, Kirk Narum Eisenbeis
  • Patent number: 8036797
    Abstract: A method and system for controlling a vehicle comprises a torque detector for detecting a first torque level and a second torque level applied to at least one wheel of the vehicle. The first torque level is associated with a lower boom position of a boom. An accelerometer detects an acceleration level of the boom during or after raising of the boom. A first hydraulic cylinder is capable of raising a boom from the lower boom position to raise an available torque from the first torque level. A second hydraulic cylinder is adapted to upwardly rotate or curl a bucket associated with the vehicle if the detected acceleration level of the boom is less than a minimum level during an attempt to raise the boom.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: October 11, 2011
    Assignee: Deere & Company
    Inventors: David August Johnson, Mark Peter Sahlin, Eric Richard Anderson, Mark John Cherney
  • Publication number: 20110166701
    Abstract: A method for scheduling mowing tasks by a robotic mower is provided. An estimated height of grass cut by the robotic mower is determined for a predetermined number of past mowing tasks. The estimated height of grass cut is compared with a predicted height of grass in an operating environment for the robotic mower. Then, a mowing schedule for the robotic mower is adjusted by decreasing a time between mowing tasks in response to the estimated height of grass cut being greater than the predicted height of grass. Alternatively, the mowing schedule for the robotic mower is adjusted by increasing the time between mowing tasks in response to the estimated height of grass cut being less than the predicted height of grass.
    Type: Application
    Filed: January 6, 2010
    Publication date: July 7, 2011
    Inventors: Russell Thacher, Kirk Eisenbeis, David August Johnson, Noel Wayne Anderson, Joshua D. Hoffman