Electronic directing system
First Claim
1. Method for maneuvering a self-propelling device (5) by means of an electronic navigational control system comprising at least a navigational control station (3) connected to at least one signal generator (1) and one sensing unit (14,15,16) arranged at the self-propelling device (5), whereby the sensing unit (14,15,16) at least senses an, in the air-medium propagating, time and space varying magnetic field, transmitted by the navigational control station (3) and in turn retransmits at least one, by the sensing unit (14,15,16) processed signal to at least one drive source that contributes to the device'"'"'s (5) movements across a surface, the signal generator (1) sends a current through the navigational control system (3), the current generating the time and space varying magnetic field (43,44,52,54), whereby the sensing unit (14,15,16) maneuvers the device (5) based on the properties of the sensed magnetic field (43,44,52,54), characterised in that said sensed magnetic field (43,44,52,54), in an area mainly within the range of the navigational control station (3), at least at one point of time has different directions (50,51).
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Accused Products
Abstract
The present invention relates to an arrangement and electronic navigational control system for a self-propelling device (5), preferably a lawn-mowing robot. The system comprises at least one navigational control system (3) connected to at least one signal generator (1) and a sensing unit arranged at the self-propelling device (5). The sensing unit senses at least one, in the air medium propagating, time and space varying magnetic field, at least transmitted via the navigational control station (3) and in turn retransmits at least one signal processed by the unit to at least one driving source which contributes to the device'"'"'s movements across the surface. The system comprises means by which the signal generator (1) sends a current through the navigational control station (3), the current generating the time and space varying magnetic field, whereby the sensing unit comprises means by which the device (5) is manoeuvred based on the properties of the sensed magnetic field.
59 Citations
36 Claims
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1. Method for maneuvering a self-propelling device (5) by means of an electronic navigational control system comprising at least a navigational control station (3) connected to at least one signal generator (1) and one sensing unit (14,15,16) arranged at the self-propelling device (5), whereby the sensing unit (14,15,16) at least senses an, in the air-medium propagating, time and space varying magnetic field, transmitted by the navigational control station (3) and in turn retransmits at least one, by the sensing unit (14,15,16) processed signal to at least one drive source that contributes to the device'"'"'s (5) movements across a surface, the signal generator (1) sends a current through the navigational control system (3), the current generating the time and space varying magnetic field (43,44,52,54), whereby the sensing unit (14,15,16) maneuvers the device (5) based on the properties of the sensed magnetic field (43,44,52,54),
characterised in that said sensed magnetic field (43,44,52,54), in an area mainly within the range of the navigational control station (3), at least at one point of time has different directions (50,51).
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21. Electronic navigational control system for a self-propelling device (5), the system comprising at least one navigational control station (3) connected to at least one signal generator (1) and a sensing unit (14,15,16) arranged at the self-propelling device (5), whereby the sensing unit (14,15,16) senses at least one time and space varying and in the air medium propagating magnetic field, at least transmitted via the navigational control station (3), in turn re-transmitting at least one, by the sensing unit (14,15,16) processed, signal to at least one driving source that contributes to the device'"'"'s movements across an area, the system comprises means by which the signal generator (1) sends a current through the navigational control station (3), the current generating the time and space varying magnetic field (43,44,52,54), whereby the sensing unit (14,15,16) comprises means by which the device (5) is maneuvered based on the properties of the sensed magnetic field (43,44,52,54),
characterised in that that said sensed magnetic field (43,44,52,54), in an area mainly within the range of the navigational control station (3), at least at one point of time has different directions (50,51).
Specification