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1. (WO2018199824) COMPENSATING FOR STRAY CAPACITANCES FOR A ROBOTIC LANWMOWER SYSTEM

Pub. No.:    WO/2018/199824    International Application No.:    PCT/SE2018/050277
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Mar 21 00:59:59 CET 2018
IPC: G05D 1/02
A01D 34/00
B62D 1/00
Applicants: HUSQVARNA AB
Inventors: LILJEDAHL, Markus
Title: COMPENSATING FOR STRAY CAPACITANCES FOR A ROBOTIC LANWMOWER SYSTEM
Abstract:
A robotic lawnmower system comprising a signal generator (240), a boundary cable, at least one guide cable (260) and a robotic lawnmower (100), said signal generator being configured to transmit a control signal through said boundary cable and a guide signal through said at least one guide cable, and wherein said robotic lawnmower comprises a controller (110) and at least one sensor (170), wherein the controller is configured for receiving said control signal through said at least one sensor (170') and determining a signal level for the control signal; and if the signal level for the control signal is below a threshold value, the controller (110) is configured to receive said guide signal and to synchronize on said guide signal.