Human body induction type white light LED lighting control system based on CAN bus

Abstract

The invention provides a human induction-typed white light LED illumination control system on the basis of CAN bus, consisting of a plurality of lamp nodes which are connected in parallel; a plurality of lamp nodes have the same structure; each node comprises an induction detection circuit, a controller, an LED driving circuit and an LED light modulation lamp which are sequentially connected in series; the induction detection circuit, the LED driving circuit and the LED light modulation lamp are respectively connected with a power circuit; the controller is also connected with the data bus; the induction detection circuit is provided with a Fresnel lens, a pyroelectric sensor, a bandpass amplifier, a comparator and an output circuit; the controller is provided with a micro-processor and a data bus interface which is connected with the micro-processor. The LED driving circuit adopts an LED driving chip. The human induction-typed white light LED illumination control system can realize that the position of the human body is taken as central point and can weaken the illumination of the lamp by step; the light beam emitted by the LED illumination lamp is not provided with the ultraviolet and is safety and green light beam with environmental protection function; the human induction-typed white light LED illumination control system can be used for the illumination lamps of buildings such as library, archives, museums, etc.

Description

technical field [0001] The invention relates to an LED intelligent lighting control system, in particular to a human body induction white LED intelligent lighting control system capable of reducing the illuminance of lamps step by step with the position of the human body as the center point, and automatically meeting the user's lighting requirements. Background technique [0002] After entering the 21st century, with the development of science and technology and the awareness of energy conservation and emission reduction, many new energy-saving equipment and automatic adjustment control systems have been developed in different areas of people's production and life. At the same time, the requirements for lighting have also undergone great changes. In some buildings such as libraries, archives, and museums, lighting is no longer simply to satisfy people's visual light and shade effects, but should aim at maximizing the durability of books and archives, improving protection con...

AI Technical Summary

Problems solved by technology

[0007] However, in the existing intelligent lighting system, the control of the working state still stays at a low level of "lights turn on when people come, and lights go off when people leave" or even one-key control of several or several lights, and most of the lighting fixtures use It is ordinary fluorescent lamps, incandescent lamps, metal halide lamps, etc., which cause a lot of waste of energy

Images