The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2017
Filed:
Feb. 21, 2013
Husqvarna Ab, Huskvarna, SE;
Patrik Jägenstedt, Tenhult, SE;
Mattias Kamfors, Jönköping, SE;
HUSQVARNA AB, Huskvarna, SE;
Abstract
Disclosed is a robotic work tool () for use with at least one guiding wire () adapted to conduct electric current to generate a magnetic field around the guiding wire. The robotic work tool has a sensing system () adapted to detect a strength of the magnetic field, a steering system (), a controller () configured to control the steering system in response to output from the sensing system by means of a feedback control loop () so as to cause movement of the robotic work tool along the guiding wire. The controller is configured to determine a measure indicative of a distance between the robotic work tool and the guiding wire, and adjust at least one parameter of the feedback control loop in response to the determined distance measure.