Renaudo, Adrien Hanouar

The embodiment of the present disclosure provides an LED light string, an LED light board, and an LED display. In the embodiments of the present disclosure, a first signal input port (DI) and a second signal output port (FDO) of the LED bead (100) are electrically connected directly to form a first breakpoint continuation line, to ensure that data signals can still be transmitted to the next LED bead even if the LED driver chip does not work. A second signal output port (FDO) and a second signal input port (FDI) of a first LED bead and a second LED bead with at least two LED beads therebetween are electrically connected to form a second breakpoint continuation line, so that data signals can still be transmitted to the second LED bead and subsequent LED beads, even if a plurality of consecutive LED beads fail to work. Furthermore, power is supplied in a serial power supply way, to reduce power consumption; furthermore, power is supplied in a hybrid serial-parallel power supply way, to address the issue of power outages in subsequent LED beads caused by malfunction of some LED bead and improve the reliability of the LED display.

Autonomous planar surface cleaning robots are disclosed. The robot includes a main body having a bottom portion defining an outer portion defining a surface area about a perimeter thereof and an inner portion defining a cavity formed within the outer portion. The main body supports a driving mechanism, a vacuum source, a vacuum sensor, and a control unit. The vacuum source, cavity, and vacuum sensor are in fluid communication. The control unit is electrically coupled to the driving mechanism, the vacuum source, and the vacuum sensor, and is configured to control the robot to turn direction when the control unit receives a signal from the vacuum sensor indicating that a degree of vacuum pressure within the cavity is below a predetermined vacuum pressure. Also disclosed is robot that includes multiple vacuum sources. Also disclosed is an apparatus that includes a connector pole.

The embodiment of the present disclosure provides an LED transparent display including a PCB board, a plurality of connection pieces, and a plurality of LED beads, the plurality of LED beads are arranged in an array on the PCB board, which is provided with a plurality of first through-holes. The plurality of LED beads are distributed around the plurality of first through-holes. The plurality of connection pieces are provided on one side of the PCB board opposite to the plurality of LED beads, and each connection piece has a plurality of connecting posts on a side toward the PCB board. The plurality of connecting posts pass through the plurality of first through-holes and are provided with adhesive applied at ends thereof. In the LED transparent display according to embodiments of the present disclosure, the adhesive at the ends of the connecting posts allows the transparent display to be fixed to transparent glass, so as to facilitate disassembly and maintenance of the transparent display and prevent display quality from being degraded due to adhesive applied directly to the LED beads.

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