Lighting color-adjustment control method, device, product, and lamp

Patent metadata

Field	Value
Publication number	US-12490354-B2
Application number	US-202318354623-A
Country	US
Kind code	B2
Filing date	Jul 18, 2023
Priority date	Aug 8, 2022
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A lighting color-adjustment control method is provided for a lamp containing at least one light-emitting unit, each having a plurality of color-light elements. The method includes: in response to a lighting color-adjustment instruction, determining a target color parameter including color values corresponding to the plurality of color-light elements; according to the target color parameter and a current color parameter, determining a first color-adjustment ratio coefficient of each color-light element; determining a unit color-adjustment value of each color-light element, the unit color-adjustment value of each color-light element being a result of a preset color-adjustment step length matched with a corresponding weight, and the weight including the first color-adjustment ratio coefficient; and synchronously controlling each color-light element to implement at least one color adjustment with the respective unit color-adjustment value to adjust each color-light element to emit a color light corresponding to the target color parameter.

First claim

What is claimed is:

1 . A lighting color-adjustment control method for a lamp containing at least one light-emitting unit, each having a plurality of color-light elements, the method comprising:
in response to a lighting color-adjustment instruction, determining a target color parameter corresponding to the lighting color-adjustment instruction, the color parameter including color values corresponding to the plurality of color-light elements; according to the target color parameter and a current color parameter corresponding to the plurality of color-light elements, determining a first color-adjustment ratio coefficient of each color-light element; determining a unit color-adjustment value of each color-light element, the unit color-adjustment value of each color-light element being a result of a preset color-adjustment step length matched with a corresponding weight, and the weight including the first color-adjustment ratio coefficient; and synchronously controlling each color-light element to implement at least one color adjustment with the respective unit color-adjustment value to adjust each color-light element to emit a color light corresponding to the target color parameter, wherein the current color parameter is sequentially adjusted to the target color parameter in a plurality of color-adjustment steps each adjusting the corresponding unit color-adjustment value.

2 . The method according to claim 1 , wherein the determining a first color-adjustment ratio coefficient of each color-light element further comprises:
based on the target color parameter and the current color parameter, calculating a color-adjustment difference value required to change a color value of each color-light element, and determining a maximum color-adjustment difference value; and normalizing the color-adjustment difference value of each color-light element according to the maximum color-adjustment difference value, and obtaining the first color-adjustment ratio coefficient corresponding to each color-light element.

3 . The method according to claim 2 , wherein the determining the unit color-adjustment difference value of each color-light element further comprises:
determining a maximum color-adjustment difference value of all the color-light elements included in the at least one light-emitting unit as a unit maximum color-adjustment difference value; normalizing the maximum color-adjustment difference value of each light-emitting unit according to the unit maximum color-adjustment difference value, and obtaining a second color-adjustment ratio coefficient corresponding to each light-emitting unit used to make color adjustment of an individual light-emitting unit consistent with color adjustment of the plurality of light-emitting units; and calculating a product of the preset color-adjustment step length and the weight of each color-light element of each light-emitting unit as the unit color-adjustment value of the corresponding color-light element, wherein the weight includes the first color adjustment ratio coefficient of the color-light element and the second color-adjustment ratio coefficient corresponding to the light-emitting unit to which the color-light element belongs.

4 . The method according to claim 3 , wherein the obtaining a second color-adjustment ratio coefficient corresponding to each light-emitting unit further comprises:
dividing the maximum color-adjustment difference value of each light-emitting unit by the unit maximum color-adjustment difference value to obtain the second color-adjustment ratio coefficient corresponding to each light-emitting unit, and normalizing the second color-adjustment ratio coefficient to a value space of [0, 1].

5 . The method according to claim 2 , wherein the synchronously controlling each color-light element to implement at least one color adjustment with the respective unit color-adjustment value to adjust each color-light element to emit a color light corresponding to the target color parameter further comprises:
based on the ratio of the color-adjustment difference value of a color-light element to its unit color-adjustment value, determining a total number of the plurality of color-adjustment control steps of the color-light elements; generating a color-adjustment control signal corresponding to the unit color-adjustment value of each color-light element; according to the total number of the plurality of color-adjustment control steps, synchronously and continuously sending corresponding color-adjustment control signal to each color-light element, and controlling each color-light element to perform color adjustment according to the color-adjustment control signal corresponding to the unit color-adjustment value of each color-light element.

6 . The method according to claim 2 , wherein the normalizing the color-adjustment difference value of each color-light element according to the maximum color-adjustment difference value, and obtaining the first color-adjustment ratio coefficient corresponding to each color-light element further comprises:
dividing the color-adjustment difference value of each color-light element by the maximum color-adjustment difference value to obtain the corresponding first color-adjustment ratio coefficient, and normalizing all the first color-adjustment ratio coefficients to a value space of [0, 1].

7 . The method according to claim 1 , wherein a light-emitting unit comprises three color-light elements used to emit red, green, and blue color light respectively.

8 . The method according to claim 1 , wherein the unit color-adjustment value belongs to an integer value space of 0 to 255, and the color-adjustment step length belongs to an integer value space of 1 to 20.

9 . A lamp, comprising:
a dimmer; a control unit; and a plurality of light-emitting units, wherein: the dimmer is used to output a lighting color-adjustment instruction to the control unit, each light-emitting unit includes a plurality of color-light elements, the control unit is electrically connected to each color-light element of the light-emitting units, and the control unit is configured to perform: in response to a lighting color-adjustment instruction, determining a target color parameter corresponding to the lighting color-adjustment instruction, the color parameter including color values corresponding to the plurality of color-light elements; according to the target color parameter and a current color parameter corresponding to the plurality of color-light elements, determining a first color-adjustment ratio coefficient of each color-light element; determining a unit color-adjustment value of each color-light element, the unit color-adjustment value of each color-light element being a result of a preset color-adjustment step length matched with a corresponding weight, and the weight including the first color-adjustment ratio coefficient; and synchronously controlling each color-light element to implement at least one color adjustment with the respective unit color-adjustment value to adjust each color-light element to emit a color light corresponding to the target color parameter, wherein the current color parameter is sequentially adjusted to the target color parameter in a plurality of color-adjustment steps each adjusting the corresponding unit color-adjustment value.

10 . The lamp according to claim 9 , wherein the determining a first color-adjustment ratio coefficient of each color-light element further comprises:
based on the target color parameter and the current color parameter, calculating a color-adjustment difference value required to change a color value of each color-light element, and determining a maximum color-adjustment difference v

Assignees

• Shenzhen Intellirocks Tech Co Ltd

Inventors

• Hu Weili
• Wu Wenlong

Classifications

• H05B45/10

  Controlling the intensity of the light · CPC title

• H05B45/325

  Pulse-width modulation [PWM] · CPC title

• H05B47/155

  Coordinated control of two or more light sources · CPC title

• H05B45/20 Primary

  Controlling the colour of the light · CPC title