A robotic work tool system (200) comprising a robotic work tool (100), said robotic work tool (100) comprising a position determining device (190) for determining a current position, such as through receiving satellite signals, and a navigation device (195) arranged to at least provide a compass heading, the robotic work tool (100) being configured to: determine a compass heading (CH) obtained through the navigation device (195); compare the compass heading to a true heading (TH) obtained through the position determining device (190); determine an error (e) between the true heading (TH) and the compass heading (CH); determine a robot position (XR; YR); and store the error (e) for said robot position (XR; YR) thereby generating a magnetic correction matrix.


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    Title :

    System and method for navigating a robotic working tool


    Contributors:

    Publication date :

    2018-09-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    A01D Ernten , HARVESTING / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen



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