Intelligent driving system and energy-saving control method of street lamp based on LED array

Abstract

The invention discloses an intelligent driving system of a street lamp based on an LED array, comprising a bridge rectification circuit, a quasi-resonance period DC/DC conversion circuit, an LED illumination module circuit, a current/voltage detecting circuit, a photoelectric insulation circuit, a microprocessor and a microprocessor peripheral circuit. Compared with the prior art, the intelligent driving system of the street lamp based on the LED array utilizes the microprocessor to control and manage the photoelectric heat dynamic characteristic of an LED, thereby improving the working reliability of the LED and achieving the energy-saving purpose. The invention also provides an energy-saving control method of a street lamp, which enables the intelligent driving system of the LED street lamp to make adaptation and adjustment according to the luminescence characteristic change caused by the change of exterior conditions such as working temperature, and the like so as to achieve optimal illumination effect and optimize the illumination efficiency of an LED street lamp system.

Description

technical field [0001] The invention relates to an LED array-based street lamp intelligent drive system, and also proposes a street lamp energy-saving control method using the LED array-based street lamp intelligent drive system. Background technique [0002] With the continuous consumption of energy, the increasing scarcity of resources, and the increasingly significant harm of the greenhouse effect to human beings, the international calls for energy conservation and consumption reduction are getting louder and louder, and energy conservation has become the consensus of all countries. As early as 1996, our country officially launched the green lighting project, and proposed that the lighting project should save resources, prevent pollution, and benefit future generations. Through the joint efforts of all walks of life, semiconductor (LED) lighting products, which are the fourth generation of light sources, have developed by leaps and bounds, and have made remarkable achieve...

AI Technical Summary

Problems solved by technology

The existing white LED street lamp driving technology mainly includes RC step-down and PWM switch constant voltage and constant current drive. Step-down and PWM switch constant voltage and constant current measures cannot be adjusted in time with changes in LED parameters, resulting in problems such as low drive efficiency and unstable current sharing.

[0005] At the same time, the application requirements for numerically controllable characteristics of LED light sources are also increasing, and traditional LED driving strategies have greatly restricted the application of LEDs in this area.

Images