Collision detection for a robotic work tool
AssigneeHusqvarna AB
InventorsPatrik Jägenstedt, Fredrik Kallström, Johan Ståhl
Life of this patent
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Abstract
A robotic work tool comprising a motor for driving at least one wheel, an inclination sensor and a controller for controlling the operation of the robotic work tool, the controller being configured to; receive a signal indicating a collision; determine if the signal indicating a collision is above a collision threshold level and, if so, determine that a collision has been detected, the robotic work tool being characterized in that the controller is further configured to: receive an indication of an inclination; and to adapt the collision threshold accordingly based on said indication of an inclination.
Claims12
A robotic work tool comprising a motor for driving at least one wheel, an inclination sensor and a controller for controlling the operation of the robotic work tool, the controller being configured to:
- receive a signal indicating a collision;
- determine if the signal indicating a collision is above a collision threshold level and, if so, determine that a collision has been detected, wherein the controller is further configured to:
- receive an indication of an inclination;
- and
- adapt the collision threshold level accordingly based on said inclination indication of the inclination.
A robotic work tool system comprising a charging station and a robotic work tool, the robotic work tool comprising a motor for driving at least one wheel, an inclination sensor and a controller for controlling the operation of the robotic work tool, the controller being configured to:
- receive a signal indicating a collision;
- determine if the signal indicating a collision is above a collision threshold level and, if so, determine that a collision has been detected, wherein the controller is further configured to:
- receive an indication of an inclination;
- and
- adapt the collision threshold level accordingly based on said inclination indication of the inclination.
A method for use in a robotic work tool comprising a motor for driving at least one wheel, an inclination sensor and a controller for controlling the robotic work tool, the method comprising:
- receiving, at the controller, a signal indicating a collision;
- determining, by the controller, if the signal indicating the collision is above a collision threshold level and, if so, determining that a collision event has been detected, the method further comprising:
- receiving, at the controller, an indication of an inclination;
- and
- adapting, at the controller, the collision threshold level accordingly based on said indication of the inclination.
Dependencies are inferred from the claim text.