FIELD: image forming devices.
SUBSTANCE: group of inventions refers to the field of devices for presenting a changing information material, as well as to the field of devices or circuits for controlling display devices and can be used to create devices for demonstrating outdoor video advertising. LED screen with a wireless data bus consists of segments and screen controllers that are connected together by one or more waveguides. Data exchange between screen controllers and segment controllers occurs via waveguides using modulated electromagnetic radiation. To transmit and receive data through waveguides, electromagnetic transceivers are used. Electromagnetic transceivers can operate in the microwave or optical frequency range of electromagnetic radiation. For transmission and receiving of data in the microwave frequency range, microwave antennas are used as transceiver elements, that are inserted into the waveguides through openings. For transmitting and receiving data in the optical range, LEDs and photodiodes are used, that are located next to the holes in the waveguides. For transmission and receiving of data, the communication standards of WiFi, WiGig and others can be used. Tasks for solving this invention are: eliminating the influence of external electromagnetic interference on the wireless communication channels of the led screen; eliminating the possibility of hacking the wireless communication channels of the LED screen; eliminating the possibility of blocking the operation of the LED screen by suppressing the wireless communication channels of the LED screen by the source of electromagnetic interference; increase reliability of data transmission inside the LED screen; increase the speed of data transfer via wireless communication channels of the LED screen; ensuring the possibility of wireless data transmission over long distances inside the LED screen without retransmission or increasing transmitter power; simplification of data transmission systems for LED screen and control algorithms for these systems; providing the ability to use for wireless data transmission within the LED screen of any frequency band; simplify the assembly, deployment and maintenance of LED screens.
EFFECT: light-emitting diodes screen with a wireless data bus (options) is offered.
32 cl, 12 dwg
