Light attenuation compensation method based on knowledge base

Abstract

The invention relates to dimming control of an LED lamp and light attenuation compensation control of the LED lamp, in particular to an LED light attenuation compensation method based on a knowledge base. Brightness compensation control parameters of an LED lamp are calculated and set by a program in a controller according to a rule of the knowledge base, so that the LED lamp can keep stable illumination brightness output for a long time. The invention provides an LED lamp with a light-emitting allowance reserved. A knowledge base is constructed by utilizing an artificial intelligence technology, all operation data of the LED are monitored in real time, and the amount of light attenuation compensation is determined through a certain algorithm according to the operation data and the knowledge base, so that the illumination of the LED can be stably outputted within a long time, and the light attenuation speed of the LED lamp is reduced on the whole. The method has the advantages that thelight attenuation speed of the whole LED lamp can be well reduced by reserving the small cost of a certain light-emitting allowance when the LED lamp is produced, the service life is prolonged on thewhole, and the maintenance pressure of the LED lamp is reduced.

Description

technical field [0001] The present application relates to the technical field of lighting equipment, and in particular, to a knowledge base-based light attenuation compensation method. Background technique [0002] A light-emitting diode (LED) is a solid-state semiconductor device that can convert electrical energy into visible light, and it can directly convert electricity into light. LED lights have the great advantages of high luminous efficiency, energy saving and environmental protection, so they have been widely used in the field of lighting. [0003] The illuminant part of LED is composed of LED chip body and fluorescent material. At the rated temperature, the life of the LED can reach more than 100,000 hours, which can be said to be very long. However, since the LED lamp usually works in different places, it is also a large heat generating body, and some factors will cause the luminous efficiency of the LED lamp to attenuate. One factor is the quality of the LED p...

AI Technical Summary

Problems solved by technology

However, since the LED lamp usually works in different places, it is also a large heating element, and some factors will cause the luminous efficiency of the LED lamp to attenuate.

One factor is the quality of the LED product itself: the quality of the LED chip used is not good, and the brightness decays quickly; there are defects in the production process, and the heat dissipation of the LED chip cannot be well derived from the PIN pin, resulting in an excessively high temperature of the LED chip and aggravated chip attenuation

Another factor is the condition of use: LEDs are driven by constant current, and some LEDs are driven by voltage to make the LED decay too fast; the driving current is greater than the rated driving conditions

[0005] Aiming at the problem of short service life of lighting equipment in the related art due to fast light attenuation, no effective solution has been proposed yet

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