Apparatus for cutting grass

An apparatus for cutting grass comprising:

• a lawn mower equipped with:
• movement means for movement of said lawn mower at least inside a cutting area (S);
• one or more blades for cutting grass in said cutting area (S);
• a perimeter cable, delimiting said cutting area (S);
• a management device for generating an electrical signal (ES) and for propagating the latter in said cable;
• and
• a recharging base for said lawn mower positioned along said perimeter cable;
• said lawn mower further comprising a control unit equipped with:
• sensor means for detecting said electrical signal (ES);
• a memory for storing a maximum value (Vmax) and a minimum value (Vmin) for an intensity of detection of said electrical signal (ES), said maximum and minimum values (Vmax, Vmin) being respectively representative of a minimum distance (Dmin) and a maximum distance (Dmax) of said lawn mower from said perimeter cable;
• a calculation module configured to determine, for said intensity of detection, a target value (Tv) that is non-null and comprised between said maximum value (Vmax) and said minimum value (Vmin), said target value (Tv) being representative of a target distance (Td) of said lawn mower with respect to said perimeter cable, said target value (Tv) being substantially different from a preceding target value determined for said intensity of detection;
• and
• an operative module configured to command said movement means so as to move said lawn mower in such a manner that said sensor means detects said electrical signal ES at an intensity substantially equal to said target value (Tv), keeping said lawn mower at a distance, with respect to said perimeter cable, that is substantially equal to said target distance (Td) during movement of said lawn mower towards said recharging base.