Patents by Inventor Jonas Rangsjö

Jonas Rangsjö 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).

  • Patent number: 12414500
    Abstract: A robotic work tool system comprising at least one robotic work tool arranged to operate in a work area, the robotic work tool comprising at least one sensor and a communication interface, the robotic work tool being configured to establish a connection to a cloud service through said communication interface; receive data gathered by the at least one sensor and transmit the gathered data to the cloud service causing the cloud service to analyze the gathered data; receive operating data from the cloud service; and to operate at least one robotic work tool based on the operating data received from the cloud service.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: September 16, 2025
    Assignee: HUSQVARNA AB
    Inventors: Jonas Holgersson, Marcus Liljedahl, Jonas Rangsjö, Andreas Peterson, Patrik Jägenstedt, Mattias Kamfors
  • Patent number: 12416924
    Abstract: A robotic work tool system (200) for defining a working area (105) in which at least one robotic work tool (100) subsequently is intended to operate. The system (200) comprises at least one controller (210) being configured to receive sensor data for pose estimation and event data relating to a plurality of events of at least one robotic work tool (100) moving within the working area (105). The received sensor and event data are associated with each other in time. The controller (210) is configured to determine positions for the events based on the received sensor data associated with the respective event data and to determine features reflecting the working area (105) by relating positions associated with corresponding events with each other.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: September 16, 2025
    Assignee: HUSQVARNA AB
    Inventors: Marcus Liljedahl, Jonas Rangsjö, Beppe Hellsin, Fredrik Kallström, Andreas Peterson
  • Patent number: 11547041
    Abstract: The present disclosure relates to a self-propelled robotic tool (1) and a method in a self-propelled robotic tool (1), being used to detecting lifting of the self-propelled robotic device from the ground. The method includes collecting (21) driving data (31) related to the driving of a wheel (5), collecting (23) measured inertia data from an inertial measurement unit (13), IMU, in the self-propelled robotic tool, determining (25), using an estimation function (33), a residual parameter corresponding to a differential between said measured inertia data and estimated inertia data resulting from said driving data being input to said estimation function, and determining a lifting condition based on the residual parameter.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: January 10, 2023
    Assignee: HUSQVARNA AB
    Inventors: Stefan Grufman, Jonas Rangsjö, Fredrik Kallström
  • Publication number: 20220295696
    Abstract: A robotic work tool system comprising at least one robotic work tool arranged to operate in a work area, the robotic work tool comprising at least one sensor and a communication interface, the robotic work tool being configured to establish a connection to a cloud service through said communication interface; receive data gathered by the at least one sensor and transmit the gathered data to the cloud service causing the cloud service to analyze the gathered data; receive operating data from the cloud service; and to operate at least one robotic work tool based on the operating data received from the cloud service.
    Type: Application
    Filed: August 17, 2020
    Publication date: September 22, 2022
    Inventors: Jonas Holgersson, Marcus Liljedahl, Jonas Rangsjö, Andreas Peterson, Patrik Jägenstedt, Mattias Kamfors
  • Publication number: 20220022371
    Abstract: A robotic work tool system (200) comprising a robotic worktool (100) comprising a distance sensor (190, 190?, 190?), the robotic work tool (100) being configured to determine a sensed distance (SD) to a surface travelled (G); determine whether the sensed distance is greater than a threshold distance; and if so detect a lift event.
    Type: Application
    Filed: January 10, 2020
    Publication date: January 27, 2022
    Inventors: Kent Askenmalm, Jonas Rangsjö