The robotic device conducts an action on a curved ferromagnetic surface. The robotic device includes a chassis platform and at least one magnetic side drive module. The chassis platform rolls on the curved ferromagnetic surface and is maintained thereon by virtue of the curved ferromagnetic surface being ferromagnetic. The at least one magnetic side drive module is pivotally attached to the chassis platform and is for conducting the action on the curved ferromagnetic surface as the chassis platform rolls on the curved ferromagnetic surface.

The robotic device conducts an action on a curved ferromagnetic surface. The robotic device includes a chassis platform and at least one magnetic side drive module. The chassis platform rolls on the curved ferromagnetic surface and is maintained thereon by virtue of the curved ferromagnetic surface being ferromagnetic. The at least one magnetic side drive module is pivotally attached to the chassis platform and is for conducting the action on the curved ferromagnetic surface as the chassis platform rolls on the curved ferromagnetic surface.

In one embodiment, there is disclosed a robot configured to clean a surface of a coating having a König pendulum hardness of less than 75 counts, the robot comprising: a cleaning brush assembly comprising a lamellar cleaning brush having a plurality of lamellas extending outwardly from a brush core and having a height, the lamellar cleaning brush arranged to rotate about its axis to apply a cleaning action to the surface when it is in contact with the surface; wherein the robot is configured to apply a degree of compression of the brush on the surface such that the brush is held in a position a distance, towards the surface of the coating, away from an initial position at which the brush is in contact with, but not deformed by, the surface of the coating, wherein said distance is less than 56% of the height of the plurality of lamellas.

A system for cleaning a structure arranged in a body of water. The system includes: a vehicle operable to move through the water and clean the structure; a tether connectable between the vehicle and a fixed position; a deployment mechanism securable relative to the structure and configured to move the vehicle into, and out of, the water; and a processing unit configured to communicate with the vehicle and the deployment mechanism. The processing unit is configured to execute a repeating cleaning schedule to cause the deployment mechanism to operate to move the vehicle into the water, the vehicle to operate to clean at least a portion of the structure, and the mechanism to operate to remove the vehicle from the water.

A magnetic wheel includes: a balance block; a magnetic body which is provided in the balance block and attaches the balance block to an attachment object with a magnetic force; and a magnetic shielding block which is provided in the balance block and guides a magnetic field generated in the magnetic body toward the attachment object.

The present invention discloses a mobile platform and an operating method of the mobile platform. The mobile platform comprises: a base; a housing disposed above an upper surface of the base and forming a placement space placing a work device with the upper surface of the base; and a travel mechanism disposed below a lower surface of the base for driving the housing and the base to move, wherein the lower surface of the base is provided with a groove and a bottom of the housing is disposed outside of an edge of the base. Moreover, during movement of the mobile platform, a dripping liquid drips down along the housing when the mobile platform is in an upright state, and the dripping liquid drips into the groove when the mobile platform is in an inverted state.

A caterpillar device includes: a water film removing part which is provided in a power transmission member including chains, presses and removes a water film between an attachment object as a magnetic material, and the power transmission member with a magnetic force, and attaches the power transmission member to the attachment object to secure a frictional force; and an apparatus body magnet attachment part which is connected to the power transmission member and attaches the body of the apparatus to the attachment object.

Device for the cleaning of a submerged section of the hull (2) of a vessel (1) that is treated with a non-toxic layer of paint based on a surface-treated coating, characterised in that the device (6) comprises a platform (7) with a first cleaning module (8) and with means (9) to place and move the cleaning module (8) against the side (4) of the hull (2) of the vessel (1) and that the device (6) is further provided with a launch platform (10) with a second cleaning module (11) which can place the second cleaning module (11) against the bottom (5) of the hull (2) whereby the second cleaning module (11) is connected via a first cable (12) to the launch platform (10) for the movement and control thereof.

A method of controlling a robot configured to clean a hull of a vessel whilst traveling over said hull, the method comprising: receiving input data; during cleaning being performed by the robot, detecting that said cleaning being performed by the robot is to be paused based on determining, from the input data, that the robot is at risk of damage; and in response to said detecting that cleaning being performed by the robot is to be paused, outputting a pause cleaning signal indicating that said cleaning is to be paused.

A method of controlling a robot configured to clean a hull of a vessel whilst traveling over said hull, the method comprising: receiving input data; during cleaning being performed by the robot, detecting that said cleaning being performed by the robot is to be paused based on determining, from the input data, that the robot is at risk of damage; and in response to said detecting that cleaning being performed by the robot is to be paused, outputting a pause cleaning signal indicating that said cleaning is to be paused.