The invention refers to a modular system (1) for cleaning panels or an array of panels (100), comprising: at least two independent modules (10a, 10b) communicating with each other, arranged at the upper and lower ends of the array of panels (100), respectively; and at least one cleaning element (16) arranged transversely to the array of panels (100) between the at least two modules (10a, 10b) by means of couplings (17); wherein each of the modules (10a, 10b) comprises at least one traction element (14) arranged perpendicular to the array of panels (100), wherein said traction element (14) rotates when a force is applied, providing in this way movement to the modules (10a, 10b) through the array of panels (100).

A solar or photovoltaic system includes a cleaning apparatus for cleaning a surface of the solar or photovoltaic system. The surface to be cleaned is tilted or tiltable respect to the horizontal. The cleaning apparatus is configured to carry out a cleaning process to clean the surface in which at least one cleaning element moves downward over the tilted surface driven by gravity.

A solar or photovoltaic system includes a cleaning apparatus for cleaning a surface of the solar or photovoltaic system. The surface to be cleaned is tilted or tiltable respect to the horizontal. The cleaning apparatus is configured to carry out a cleaning process to clean the surface in which at least one cleaning element moves downward over the tilted surface driven by gravity.

A robot scheduling method. A robot comprises a cleaning robot for performing cleaning operations in a cleaning area, and a conveying robot for transporting the cleaning robot in an aisle area. The robot scheduling method comprises a task generating step, a task issuing step, a route planning step, a travel controlling step, and a conveying controlling step.

A robot scheduling method. A robot comprises a cleaning robot for performing cleaning operations in a cleaning area, and a conveying robot for transporting the cleaning robot in an aisle area. The robot scheduling method comprises a task generating step, a task issuing step, a route planning step, a travel controlling step, and a conveying controlling step.

Systems and methods for cleaning transmission surfaces for optical and sensor surfaces in order to maintain optimal performance under a variety of weather and environmental conditions using synthetic jet actuators. The actuators can emit a jet of water or air depending on environmental conditions and the waveform, frequency, amplitude of the actuator can be adjusted based on particle characteristics and transmission signal quality in order to better clean the surfaces.

A solar cell field cleaning apparatus (10), including: a chassis (102), for being connected to a vehicle (90); a right horizontal support (42R), for extending right to the chassis (102); a left horizontal support (42L), for extending left to the chassis (102); elongated horizontal cleaning elements (12), being supported by the right (42R) and left (42L) horizontal supports, thereby the solar cell field cleaning apparatus (10) is configured to drive the vehicle (90) between right (92R) and left (92L) solar surfaces, for cleaning thereof by the elongated horizontal cleaning elements (12).

A telescopic guide assembly for bridging a first solar panel table and a second solar panel table is disclosed. The telescopic guide assembly may include an inner pipe partially disposed within an outer pipe. The inner pipe may be configured to rotate within the outer pipe and may be further configured to partially slide-in or slide-out of the outer pipe. The telescopic guide assembly may further include a first coupler configured to mechanically couple the inner pipe with the first solar panel table at an associated first position on an inner side of the first solar panel table facing a second solar panel table, and a second coupler configured to mechanically couple the outer pipe with the second solar panel table at an associated second position on an inner side of the second solar panel table facing the first solar panel table.

A mobile panel maintenance system including a mobile panel maintenance unit having a base supported for translational motion over a surface within a panel array and a carriage movably mounted to the base to position a panel maintenance assembly in relation to a panel surface for panel maintenance.

A solar heat collection device for a near-zero energy consumption community, including a heat collection frame, a heat collector, a center of gravity adjusting frame and a self-adaptive angle adjusting assembly, wherein the heat collector is rotatably disposed on the heat collection frame through the self-adaptive angle adjusting assembly; the center of gravity adjusting frame is fixed on one side of the bottom of the heat collector; the self-adaptive angle adjusting assembly includes a fixing cylinder, an angle adjusting cylinder, an inner cylinder and a damping adjusting assembly; the inner cylinder is coaxially fixed inside the angle adjusting cylinder; two ends of the angle adjusting cylinder are respectively coaxially and rotatably connected with the fixing cylinder; and the damping adjusting assembly is arranged between the angle adjusting cylinder and the fixing cylinder.