LED control technology is LED-NET system is based on DMX512 protocol and computer network technology TCP / IP protocol based on the development of LED lighting control system. The TCP/IP protocol (Transfer Controln Protocol/Internet Protocol) is called Transmission Control/Internet Protocol.
Now the control system has the DMX512 console to control the dimmer with a standard digital interface. EIA485 (RS485) belongs to the "electric" end of the interface, point voltage, current, etc., and the serial SPI control mode, which is controlled in cascade mode. Mainly used for LED display design, and RS485 networked control mode, each LED lamp is built with one MCU to control and connected to RS485 bus, through a controller to control each MCU on RS485 bus, due to this The kind of control needs to set the address for each luminaire, which is inconvenient for engineering application DMX512 control system.
At present, the most widely used LED control system is actually a separate standard for the LED market . Since the DMX512 has to set the address and the DMX512 can only control up to 512 channels, that is, 170 full-color LED lamps, it can only be applied to small-scale LED control systems (underwater). Lights, buried lights, floodlights, curtain wall lights, contour lights) and LED rainbow lights, also known as the US-resistant lights are only controlled by the microchip, LED floodlights mainly refer to high-power single 1-3W At the same time, each LED tube will have a high-efficiency lens made of PMMA, whose main function is to distribute the light emitted by the LED tube twice. LED guardrail light control technology is mainly based on DMX512 protocol for serial communication (small soup)
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