A robot (2) and method for underwater monitoring and maintenance of a ship's hull (1) when the ship is underway, are described. The robot (2) comprises a main body (5), a connector (21) for connecting the robot (2) to a cable (3) for towing the robot (2), a resting base (13) adopted to rest against the ship's hull (1), one or more hydrofoil(s) (6, 7) arranged perpendicular to the length axis of the main body (5), and a rudder (8) arranged at the front part of the main body (5), the main body (5) being a straight and elongated body having a length to width ratio of 5 or more, where the length of the hydrofoil(s) (6, 7) as seen perpendicular to the main body (5), is/are longer than the width of the main body (5), and where the connector (21) for the cable (3) is arranged at one end of a hydrofoil (6), or at an arm extending parallel with the one or more hydrofoil(s).

A robot (2) and method for underwater monitoring and maintenance of a ship's hull (1) when the ship is underway, are described. The robot (2) comprises a main body (5), a connector (21) for connecting the robot (2) to a cable (3) for towing the robot (2), a resting base (13) adopted to rest against the ship's hull (1), one or more hydrofoil(s) (6, 7) arranged perpendicular to the length axis of the main body (5), and a rudder (8) arranged at the front part of the main body (5), the main body (5) being a straight and elongated body having a length to width ratio of 5 or more, where the length of the hydrofoil(s) (6, 7) as seen perpendicular to the main body (5), is/are longer than the width of the main body (5), and where the connector (21) for the cable (3) is arranged at one end of a hydrofoil (6), or at an arm extending parallel with the one or more hydrofoil(s).

An anti-fouling lighting system is used for protecting a surface (16) against biofouling while the surface (16) is submerged in water. A non-contact water sensor (60) is used for sensing water thereby to detect whether or not a light source arrangement (26), or a portion of the light source arrangement (26), is submerged in water. The light source arrangement (26), or the portion of the light source arrangement (26), is controlled in dependence on the water sensor (60) output.

In an anti-biofouling context, an arrangement (1) is provided which comprises an object (10) and a light-emitting system (20) arranged on at least a main surface (11a) of the object (10). The light-emitting system (20) includes a plurality of light sources (21) for emitting anti-biofouling light and is configured to emit the light in a direction away from the object (10). The light sources (21) are arranged in the light-emitting system (20) in at least two different light-emitting groups (22) having respective main directions of emission (23) of the anti-biofouling light, the main directions of emission (23) of at least two light-emitting groups (22) having different spatial orientations when viewed on an unfolded and flattened area of the main surface (11a) where the light-emitting groups (22) are located. Consequently, the area that is reached by the anti-biofouling light during operation of

In an anti-biofouling context, an arrangement (1) is provided which comprises an object (10) and a light-emitting system (20) arranged on at least a main surface (11a) of the object (10). The light-emitting system (20) includes a plurality of light sources (21) for emitting anti-biofouling light and is configured to emit the light in a direction away from the object (10). The light sources (21) are arranged in the light-emitting system (20) in at least two different light-emitting groups (22) having respective main directions of emission (23) of the anti-biofouling light, the main directions of emission (23) of at least two light-emitting groups (22) having different spatial orientations when viewed on an unfolded and flattened area of the main surface (11a) where the light-emitting groups (22) are located. Consequently, the area that is reached by the anti-biofouling light during operation of

The invention provides an anti-fouling lighting system (1) configured for preventing or reducing biofouling on a fouling element (1201) of an object (1200). The fouling element (1201) is during use at least partly moving and at least temporarily exposed to water. Fouling is prevented by irradiating an anti-fouling light (211) onto said fouling element (1201). The anti-fouling lighting (1) system comprises at least one laser light source (2) configured to generate the anti-fouling light (211) and to provide said anti-fouling light (211) to said fouling element (1201) during use, wherein the system (1) is arranged such that during use the fouling element (1201) at least partly moves with respect to the laser light source (2).

The invention provides an anti-fouling lighting system (1) configured for preventing or reducing biofouling on a fouling element (1201) of an object (1200). The fouling element (1201) is during use at least partly moving and at least temporarily exposed to water. Fouling is prevented by irradiating an anti-fouling light (211) onto said fouling element (1201). The anti-fouling lighting (1) system comprises at least one laser light source (2) configured to generate the anti-fouling light (211) and to provide said anti-fouling light (211) to said fouling element (1201) during use, wherein the system (1) is arranged such that during use the fouling element (1201) at least partly moves with respect to the laser light source (2).

An antifouling system for reducing and/or preventing fouling of an object exposed to fouling conditions when in use, comprising a plurality of antifouling devices (26) for providing an antifouling radiation to at least part of the object and/or at least part of the antifouling system; wherein the antifouling system further comprises: —a power transmission system comprising: —an inductive power emitter (10) comprising at least one inductive emitter element (12); and —a plurality of inductive power receivers (24) each one comprising at least one inductive receiver element; wherein the inductive power emitter and the plurality of inductive power receivers are for mounting on the object in a fixed configuration with respect to each other thereby to provide an inductive coupling between each one of the at least one inductive receiver elements and the at least one inductive emitter element such that power may be inductively transmitted when the power transmission system is in use; and wherein the plurality of antifouling devices (26) are configured to be driven using transmitted power from at least one of the plurality of inductive power receivers when the system is in use.

The present invention relates to a marine structure comprising an external surface (50), a load (2, 20, 21, 22, 25) comprising a light source, said load having a first load terminal (2a) and a second load terminal (2b) adapted to be powered by an AC power source (1), said AC power source (1) having a first AC terminal (1a) electrically connectable to the surface (50) and a second AC terminal (1b), a first electrode (3) electrically connected to the first load terminal (2a), and a dielectric layer (4). The first electrode (3) and the dielectric layer (4) are arranged to form, in combination with the surface (50), a capacitor (6) for capacitive transmission of electrical power between the first electrode (3) and the surface (50). The second AC terminal (1b) and the second load terminal (2b) are arranged to be electrically connected to an external electrically conductive element (10, 11) insulated from the surface (50). The first load terminal (2a) is electrically insulated from the second load terminal (2b).

The present invention relates to a marine structure comprising an external surface (50), a load (2, 20, 21, 22, 25) comprising a light source, said load having a first load terminal (2a) and a second load terminal (2b) adapted to be powered by an AC power source (1), said AC power source (1) having a first AC terminal (1a) electrically connectable to the surface (50) and a second AC terminal (1b), a first electrode (3) electrically connected to the first load terminal (2a), and a dielectric layer (4). The first electrode (3) and the dielectric layer (4) are arranged to form, in combination with the surface (50), a capacitor (6) for capacitive transmission of electrical power between the first electrode (3) and the surface (50). The second AC terminal (1b) and the second load terminal (2b) are arranged to be electrically connected to an external electrically conductive element (10, 11) insulated from the surface (50). The first load terminal (2a) is electrically insulated from the second load terminal (2b).