The system and method of retractable solar arrays for underwater vehicles. In some cases, the retractable solar arrays for underwater vehicles contain anti-biofouling mechanisms. The retractable solar arrays may extend in a linear or a fan-like manner. In some cases, the solar array may be wrapped around the outside of the underwater vehicle or within a cylindrical housing. In some cases the solar array is a single flexible member with a series of connected panels.

The system and method of retractable solar arrays for underwater vehicles. In some cases, the retractable solar arrays for underwater vehicles contain anti-biofouling mechanisms. The retractable solar arrays may extend in a linear or a fan-like manner. In some cases, the solar array may be wrapped around the outside of the underwater vehicle or within a cylindrical housing. In some cases the solar array is a single flexible member with a series of connected panels.

A device for treating smooth surfaces includes a treatment unit, a support structure with a pivoting support arm for positioning and holding the treatment unit and a load balancer for setting and automatically controlling the contact pressure acting on the surface to be treated by the treatment unit. The treatment unit in the form of a spraying device includes at least one support roller or support wheel for supporting the treatment unit against the surface to be treated.

A device for treating smooth surfaces includes a treatment unit, a support structure with a pivoting support arm for positioning and holding the treatment unit and a load balancer for setting and automatically controlling the contact pressure acting on the surface to be treated by the treatment unit. The treatment unit in the form of a spraying device includes at least one support roller or support wheel for supporting the treatment unit against the surface to be treated.

1. Method for controlling a flying body for cleaning surfaces

2.1. Flying bodies can cover large distances between arrangements of smooth and curved surfaces without requiring manual manipulation. This reduces personnel requirements and enables large surfaces to be maintained, for example solar power stations, in a fully automated manner.

2.2. The method for controlling a flying body for cleaning surfaces consists of detecting the surrounding surfaces of an object to be cleaned, directing the flying body with respect thereto and structuring the flight path. As a result, the surface can be cleaned particularly efficiently and, if needed, worked on further.

2.3. Said method for controlling a flying object for cleaning surfaces is suitable for use on glass facades or on solar power stations, particularly in arid regions.

A water guiding assembly configured to drain water or discharge other liquid or solid substances for a photovoltaic assembly is provided. The water guiding assembly includes a water guider and a mounting component. The water guider includes a water guiding portion, the water guiding portion has a fitting portion configured to abut against a frame of the photovoltaic assembly, to provide a gap between the water guiding portion and the frame to form a guiding channel. The mounting component includes a fixing portion and a connecting portion, an end of the connecting portion is detachably connected to the water guider, and another end of the connecting portion is connected to the fixing portion to form a clamping opening with the water guider and the fixing portion, which is configured to clamp the frame. The connecting portion is provided with a discharge channel butted with the guiding channel.

A water guiding assembly configured to drain water or discharge other liquid or solid substances for a photovoltaic assembly is provided. The water guiding assembly includes a water guider and a mounting component. The water guider includes a water guiding portion, the water guiding portion has a fitting portion configured to abut against a frame of the photovoltaic assembly, to provide a gap between the water guiding portion and the frame to form a guiding channel. The mounting component includes a fixing portion and a connecting portion, an end of the connecting portion is detachably connected to the water guider, and another end of the connecting portion is connected to the fixing portion to form a clamping opening with the water guider and the fixing portion, which is configured to clamp the frame. The connecting portion is provided with a discharge channel butted with the guiding channel.

A multi-purpose cleaning system for cleaning glasses/stickers/solar panels is disclosed. The disclosed cleaning system is based on a housing movably arranged on an object to be cleaned; cleaning elements to clean the object; rotary devices to enable movement of the housing across the object to facilitate cleaning of the object; a control unit configured to actuate the rotary devices; and a spring mechanism operatively coupled to the rotary devices. The spring mechanism is configured such that the spring mechanism either gets compressed or extended when the rotary devices are actuated to move the housing to clean a cleaning area of the object. A biasing spring force of the compressed or extended spring mechanism facilitates movement of the housing from the cleaning area of the object to be cleaned to a rest position on the object.

A multi-purpose cleaning system for cleaning glasses/stickers/solar panels is disclosed. The disclosed cleaning system is based on a housing movably arranged on an object to be cleaned; cleaning elements to clean the object; rotary devices to enable movement of the housing across the object to facilitate cleaning of the object; a control unit configured to actuate the rotary devices; and a spring mechanism operatively coupled to the rotary devices. The spring mechanism is configured such that the spring mechanism either gets compressed or extended when the rotary devices are actuated to move the housing to clean a cleaning area of the object. A biasing spring force of the compressed or extended spring mechanism facilitates movement of the housing from the cleaning area of the object to be cleaned to a rest position on the object.

There is provided a water solar power generation system including: a solar cell plate; a frame supporting the solar cell frame; and a float installed in the frame and positioning the solar cell plate on the surface of the water while floating on the surface of the water. The frame becomes a negative electrode and an optical electrode which becomes a positive electrode, and is electrically connected to the frame, and causes water decomposition while contacting water in the water to generate oxygen in the water.