Abstract: Provided are a communication control method, a communication master device, and a system in a local area network. The method includes: sending, every first preset duration, a broadcast search instruction to each slave device for a device search, whereby each slave device randomly generates a first timing time slice, and makes a response after timing of the first timing time slice ends; after the device search is completed, sending a broadcast access instruction to each slave device, whereby each slave device randomly generates a second timing time slice, and makes a response after timing of the second timing time slice ends; and after device access is completed, sending, by a master device, a synchronization instruction to each slave device, whereby each slave device randomly generates a third timing time slice, and makes a response after timing of the third timing time slice ends.

Abstract: Disclosed are a lamp color correction method and system, and a storage medium.

Abstract: Disclosed are a lamp color correction method and system, and a storage medium.

Abstract: A color temperature control method in the present disclosure includes: obtaining color coordinates and illuminance of each monochromatic lamp, and obtaining, based on the illuminance and an illuminance proportion of a color temperature, initial illuminance data of the monochromatic lamp at a current color temperature; calculating a coordinate difference between target color coordinates and mixed color coordinates obtained by performing illuminance mixing on the initial illuminance data; when the coordinate difference is within a first difference range, calculating illuminance changes of R and B based on the mixed color coordinates, the target color coordinates, correction coordinates of R, and correction coordinates of B; and obtaining latest channel values of R and B based on the illuminance changes of R and B, and regulating, based on the latest channel values, the color temperature of each monochromatic lamp on which color mixing is performed.

Abstract: A color temperature control method in the present disclosure includes: obtaining color coordinates and illuminance of each monochromatic lamp, and obtaining, based on the illuminance and an illuminance proportion of a color temperature, initial illuminance data of the monochromatic lamp at a current color temperature; calculating a coordinate difference between target color coordinates and mixed color coordinates obtained by performing illuminance mixing on the initial illuminance data; when the coordinate difference is within a first difference range, calculating illuminance changes of R and B based on the mixed color coordinates, the target color coordinates, correction coordinates of R, and correction coordinates of B; and obtaining latest channel values of R and B based on the illuminance changes of R and B, and regulating, based on the latest channel values, the color temperature of each monochromatic lamp on which color mixing is performed.

Abstract: The present invention discloses a method, device, terminal setting and readable storage medium for correcting mixed color. The method first acquiring color coordinates of standard mixed color and color coordinates of mixed color to be corrected, when the first difference coordinates of the two color coordinates exceed preset threshold, calculating a ratio of Y coordinate and X coordinate of the first difference coordinates to obtain first ratio, calculating coordinates difference between the first color coordinates and color coordinates of each monochromatic light to obtain difference coordinates to be processed, calculating ratios of Y coordinate and X coordinate of each difference coordinates to be processed to obtain ratios to be processed, selecting monochromatic light corresponding to a ratio to be processed with the smallest difference from the first ratio as monochromatic light to be adjusted, then realizing color correction by adjusting color channel value of the monochromatic light to be adjusted.

Abstract: A LED dimming method includes obtaining an illumination set according to a preset dimming curve and an initial dimming grayscale set; obtaining an excitation signal set comprising a voltage signal set or a current signal set according to the illumination set; obtaining a measured illumination curve according to the excitation signal set and the initial dimming grayscale set; collecting a subdivision dimming grayscale set according to the measured illumination curve and the preset dimming curve, so that a dimming curve corresponding to the subdivided dimming grayscale set and the illumination set coincides with the preset dimming curve; and adjusting the excitation signal set according to the subdivision dimming grayscale set. The method can achieve an ideal and undistorted optical curve effect to meet the demands of the user, and therefore achieving an efficient and accurate dimming.

Abstract: The present invention discloses a method, device, terminal setting and readable storage medium for correcting mixed color. The method first acquiring color coordinates of standard mixed color and color coordinates of mixed color to be corrected, when the first difference coordinates of the two color coordinates exceed preset threshold, calculating a ratio of Y coordinate and X coordinate of the first difference coordinates to obtain first ratio, calculating coordinates difference between the first color coordinates and color coordinates of each monochromatic light to obtain difference coordinates to be processed, calculating ratios of Y coordinate and X coordinate of each difference coordinates to be processed to obtain ratios to be processed, selecting monochromatic light corresponding to a ratio to be processed with the smallest difference from the first ratio as monochromatic light to be adjusted, then realizing color correction by adjusting color channel value of the monochromatic light to be adjusted.

Abstract: A LED dimming method includes obtaining an illumination set according to a preset dimming curve and an initial dimming grayscale set; obtaining an excitation signal set comprising a voltage signal set or a current signal set according to the illumination set; obtaining a measured illumination curve according to the excitation signal set and the initial dimming grayscale set; collecting a subdivision dimming grayscale set according to the measured illumination curve and the preset dimming curve, so that a dimming curve corresponding to the subdivided dimming grayscale set and the illumination set coincides with the preset dimming curve; and adjusting the excitation signal set according to the subdivision dimming grayscale set. The method can achieve an ideal and undistorted optical curve effect to meet the demands of the user, and therefore achieving an efficient and accurate dimming.

Abstract: The invention discloses a reflector bowl and an optical system applicable for colorful spotlights. The reflector bowl comprises a reflector bowl body having a big end and a small end, wherein the small end of the reflector bowl body is arranged with a light source opening and the big end of the reflector bowl body is opened and serves as a light outlet, the reflector bowl body has a square shaped cross section, and an inner surface of the reflector bowl body is a smooth mirror surface. The reflector bowl body is configured to have a square shaped cross section and thus the light outlet has a square shape, and lights are reflected by the reflector bowl body and the reflected lights can be superimposed with direct lights of the light source, whereby the reflector bowl of the invention realizes uniform color mixture on the smooth surface.

Abstract: The invention discloses a reflector bowl and an optical system applicable for colorful spotlights. The reflector bowl comprises a reflector bowl body having a big end and a small end, wherein the small end of the reflector bowl body is arranged with a light source opening and the big end of the reflector bowl body is opened and serves as a light outlet, the reflector bowl body has a square shaped cross section, and an inner surface of the reflector bowl body is a smooth mirror surface. The reflector bowl body is configured to have a square shaped cross section and thus the light outlet has a square shape, and lights are reflected by the reflector bowl body and the reflected lights can be superimposed with direct lights of the light source, whereby the reflector bowl of the invention realizes uniform color mixture on the smooth surface.

Abstract: A method for mixed color correction is provided. Based on the variations of the chromaticity coordinates required for adjusting between the target color and the actually-measured color, variations of illuminances of one or two of RGB of the three colors are calculated for adjusting the actually-measured color to achieve the variations of the chromaticity coordinates required for adjusting according to the correlation between the chromaticity coordinates and the tristimulus values, until the required variations of chromaticity coordinate are within a required range. This method can quickly and accurately correct and adjust the actually-measured color, guarantee the consistency of lamp colors, and is convenient for application.

Abstract: A method for realizing fast color mixing of any colors is disclosed. When the number of colors to be mixed is three, the first illuminance ratio between the three colors to be mixed that required for obtaining the target color is calculated. When the number of colors to be mixed exceeds three, the mixed color of other colors except the first and second color is determined firstly according to a settled second illuminance ratio between other colors except for a first and a color, then a third illuminance ratio between the first color, the second color and the mixed color of other colors except for the first and second color for obtaining the target color is calculated. This method can quickly determine the first illuminance ratio between three or more colors to be mixed according to the target color and the illuminance ratio of certain mixed color.

Abstract: A method for mixed color correction is disclosed. Based on the variations of the chromaticity coordinates required for adjusting between the target color and the actually-measured color, variations of illuminances of one or two of RGB of the three colors are calculated for adjusting the actually-measured color to achieve the variations of the chromaticity coordinates required for adjusting according to the correlation between the chromaticity coordinates and the tristimulus values, until the required variations of chromaticity coordinate are within a required range. This method can quickly and accurately correct and adjust the actually-measured color, guarantee the consistency of lamp colors, and is convenient for application.

Abstract: A method for realizing fast color mixing of any colors is disclosed. When the number of colors to be mixed is three, the first illuminance ratio between the three colors to be mixed that required for obtaining the target color is calculated. When the number of colors to be mixed exceeds three, the mixed color of other colors except the first and second color is determined firstly according to a settled second illuminance ratio between other colors except for a first and a color, then a third illuminance ratio between the first color, the second color and the mixed color of other colors except for the first and second color for obtaining the target color is calculated. This method can quickly determine the first illuminance ratio between three or more colors to be mixed according to the target color and the illuminance ratio of certain mixed color.

Abstract: A reflective light guide includes a cylinder enclosed by more than three reflecting plates which connected with each other in turn. The reflecting plate includes a plate body and a reflecting layer arranged on the plate body, along the exit direction of light. The cylinder includes a light inlet part, a light reflecting part and a light outlet part in turn, wherein the light outlet part larger than the light inlet part such that the cylinder being cone shaped. The LED light source with a reflective light guide tube includes a LED light source and a reflective light guide tube. The optical system includes a reflective light guide tube, a LED light source and an optical assembly.

Abstract: A reflective light guide includes a cylinder enclosed by more than three reflecting plates which connected with each other in turn. The reflecting plate includes a plate body and a reflecting layer arranged on the plate body, along the exit direction of light. The cylinder includes a light inlet part, a light reflecting part and a light outlet part in turn, wherein the light outlet part larger than the light inlet part such that the cylinder being cone shaped. The LED light source with a reflective light guide tube includes a LED light source and a reflective light guide tube. The optical system includes a reflective light guide tube, a LED light source and an optical assembly.