RGB lamp color correction control method and system

Abstract

The invention discloses an RGB (red, green and blue) lamp color correction control method, which comprises the following steps of: 100, acquiring an expected color coordinate of a lamp system based on a given input value; 200, detecting actual color coordinates of the lamp system, and obtaining color deviation according to the actual color coordinates and the expected color coordinates; 300, two fuzzy PID controllers are arranged corresponding to the color coordinate x and the color coordinate y, each fuzzy PID controller comprises a fuzzy control module and a PID module, the color deviation value and the deviation value change rate serve as input of the two fuzzy control modules, and parameter correction is obtained and output to the corresponding PID modules; 400, control parameters of the two PID modules are obtained based on the initial proportionality coefficients, the initial integral coefficients and the initial differential coefficients of the two PID modules and the respective proportionality coefficients, integral coefficients and differential coefficient corrections of the two PID modules; 500, obtaining respective control quantity based on the control parameters of the two PID modules; 600, obtaining an input value of the lamp system according to the control quantity; and 700, inputting the input value into the lamp system, and returning to execute the step 200.

Description

technical field [0001] The invention relates to a control method and system for a lamp, in particular to a control method and system for color correction of a lamp. Background technique [0002] In recent years, more and more vehicles have been equipped with ambient lights on the basis of the original interiors. Ambient lights are gradually favored by car interiors because of their atmosphere creation and comfort enhancement. [0003] In order to meet the needs of the majority of users, the ambient lights equipped on current vehicles have developed from monochromatic ambient lights to RGB multi-color ambient lights. Compared with ordinary single-color LED ambient lights, RGB ambient lights can mix multiple colors of light from three LEDs, red, green, and blue. It can also realize various functions such as color transformation, dynamic and static switching, and rhythmic rhythm. [0004] In the prior art, the optical structure of RGB atmosphere lights is generally to connect ...

AI Technical Summary

Problems solved by technology

However, there are many factors to be considered when adopting this solution and the coupling is strong, it is difficult to adjust small deviations, and it is even more difficult to compensate for color deviations caused by aging

Images