Semiconductor lighting far distance light regulation controller

Abstract

A remote light adjustment controller for semiconductor illumination, which contains first communication interface unit, protocol conversation unit, second communication unit, and LED illumination unit. The remote control information from first communication unit is converted into internal bus protocol by protocol conversation unit, and implements PWM light adjustment control to LED illumination unit. Said invention adapts to bidirection control, wireless control and remote control.

Description

technical field [0001] The invention relates to a remote LED lighting node control device, in particular to a control device for brightening / darking, dimming, and flashing of semiconductor LED lighting through wired and / or wireless communication methods. Background technique [0002] Now known LED lighting control technology, in the remote application, most of them adopt the system mode of RS485 bus and DMX512 protocol. In addition, there are related documents, such as U.S. Patent Publication No. US6211626, the patent document on April 3, 2001, and U.S. Patent Publication No. US6016038, the patent document on January 18, 2000. The scheme is described systematically. This scheme combines RS485 bus and DMX512 protocol, and its advantage is that the bus mode is simple, the communication direction is unidirectional, and the communication rate is high. [0003] Although RS-485 is a low-cost, easy-to-operate communication system, its shortcomings are also obvious. For example, t...

AI Technical Summary

Problems solved by technology

[0003] Although RS-485 is a low-cost, easy-to-operate communication system, its shortcomings are also obvious. For example, the RS-485 bus still has defects in anti-interference, self-adaptation, communication efficiency, etc.: if a node fails, It usually leads to the paralysis of the system or even a part or the whole, and it is difficult to judge

Therefore, in a complex application environment, the anti-interference ability and data error rate of the system are difficult to meet the practical requirements; moreover, the DMX-512 protocol is a one-way communication protocol, and in the system, it cannot support reverse communication. Some applications that transmit data, such as sensor or lighting node status feedback, etc.

Images