Stage background curtain intelligent control method and system based on data acquisition

Abstract

The invention discloses a stage background curtain intelligent control method and system based on data acquisition, and relates to the technical field of intelligent control, and the method comprises the steps: obtaining stage structure information, taking an intersection point of a stage light irradiation path and a stage curtain as a light influence point according to the stage structure information, and obtaining light influence position information, and acquiring light influence feature point information based on stage light area analysis. According to the method, the influence conditions of stage lighting in different areas on the curtain are accurately analyzed through the lighting influence coefficients, huge data volume caused by direct analysis of all stage lighting influences is avoided through the stage lighting influence indexes, the accuracy of the analysis result is ensured, and the accuracy of the analysis result is improved through the curtain brightness adjustment information. The stage curtain brightness adjusting speed is improved, the stability and uniformity of the stage visual effect are ensured, the stage curtain background is accurately and timely changed through the curtain change index, and the synchronism of the curtain and the performance is ensured.

Description

Technical Field

[0001] The present invention relates to the field of intelligent control technology, and particularly to an intelligent control method and system for a stage background curtain based on data collection. Background Art

[0002] With the development of the cultural and entertainment industry, audiences have higher and higher requirements for the viewing experience of performances. Immersive performances are gradually becoming a trend, which requires the stage background curtain to create more realistic and vivid scenes. For example, in immersive dramas, the curtain needs to cooperate with the actors' performances to create different spaces and atmospheres in real time, making the audience feel as if they are in the story, enhancing the audience's sense of participation and immersion. The wide application of automation control technology in fields such as industry and architecture provides a reference for the intelligent control of stage curtains. The development of programmable logic controllers, motor drive technology, etc. makes the automation control of curtains more stable and reliable. By writing control programs, precise control of curtain movements can be achieved. Combining sensor feedback data can also achieve closed-loop control, further improving the accuracy and adaptability of curtain control.

[0003] Currently, for the control of stage background curtains, there are still problems such as being unable to dynamically adjust the brightness of the curtain in a timely manner according to the lighting effects of the stage. If directly analyzing the influence of all lights on the display of the stage curtain, it greatly increases the amount of data and reduces the adjustment rate of the curtain brightness. If only analyzing some lights or manually adjusting, it will lead to a decrease in the adjustment accuracy of the curtain brightness, unable to maximize the background display effect, and unable to change the stage curtain background in a timely manner according to the stage performance situation. Summary of the Invention

[0004] To solve the above technical problems, an intelligent control method and system for a stage background curtain based on data collection are provided. This technical solution solves the problems mentioned in the above background art, such as dynamically adjusting the brightness of the curtain in a timely manner according to the lighting effects of the stage. If directly analyzing the influence of all lights on the display of the stage curtain, it greatly increases the amount of data and reduces the adjustment rate of the curtain brightness. If only analyzing some lights or manually adjusting, it will lead to a decrease in the adjustment accuracy of the curtain brightness, unable to maximize the background display effect, and unable to change the stage curtain background in a timely manner according to the stage performance situation.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An intelligent control method for a stage background curtain based on data collection, including: Obtaining stage structure information, where the stage structure information includes stage lighting information, stage sensor information, and stage curtain information; According to the stage structure information, take the intersection point of the stage light irradiation path and the stage curtain as the light influence point, and obtain the light influence position information; Based on the stage light area analysis, obtain the light influence feature point information; Based on the stage sensors, obtain the stage light data and the stage curtain data. The stage light data includes the stage light brightness data and the stage light color data, and the stage curtain data includes the stage curtain brightness data and the stage curtain color data; According to the stage light data, the light influence feature point information and the stage curtain data, obtain the curtain brightness adjustment information; Adjust the stage curtain brightness according to the curtain brightness adjustment information; Based on the stage performance process settings, obtain the stage curtain background change information. The stage curtain background change information represents the number of times the stage curtain background changes during the stage performance process and the corresponding change content for each stage curtain background change; According to the stage performance process information and the stage curtain background change information, obtain the curtain change time node information and the curtain change characteristic action information; Monitor the stage performance in real time, and obtain the stage performance action data and the performance time information; Compare the performance time information with the curtain change time node information to determine whether it is in the curtain change stage. If so, according to the curtain change time node information, the curtain change characteristic action information, the stage performance action data and the performance time information, obtain the curtain change index; Perform the stage curtain background change on the stage curtain according to the curtain change index.

[0006] Preferably, the obtaining of the light influence feature point information based on the stage light area analysis specifically includes: Based on the stage light area analysis, classify the stage lights to obtain the stage light classification information. The stage light area includes the main light area, the side light area and the backlight area; Based on the light influence position information, obtain the stage light information corresponding to each light influence position; According to the stage light classification information, classify the light influence positions to obtain the light influence position classification information; According to the light influence position classification information, obtain the light influence coefficient; According to the light influence position information and the light influence coefficient, obtain the stage light influence index; According to the stage light information, obtain the stage light parameter information. The stage light parameter information includes the stage light standard color gamut information; Obtain the color display test data; Obtain the preset number of feature points according to the stage lighting parameter information and the color display test data; Arrange the lighting influence positions in descending order according to the stage lighting influence index to obtain the lighting influence position order information; According to the lighting influence position order information, select the lighting influence positions from front to back based on the preset number of feature points to obtain the lighting influence feature point information; Among them, the calculation formula of the stage lighting influence index is: In the formula, represents the stage lighting influence index of the s-th lighting influence position, represents the included angle between the connection line of the j-th stage lighting and the s-th lighting influence position and the curtain, represents the distance between the j-th stage lighting and the s-th lighting influence position, The distance between the s-th lighting influence position and the center position of the curtain.

[0007] Preferably, obtaining the lighting influence coefficient according to the lighting influence position classification information specifically includes: Obtain the basic information of the stage curtain according to the stage curtain information, and the basic information of the stage curtain includes the basic color information of the stage curtain; Based on the color space coordinate system, convert the basic color of the stage curtain to obtain the basic color coordinate information of the curtain, and the basic color coordinate of the curtain represents the position of the basic color of the stage curtain in the color space coordinate system; Irradiate the stage curtain with the stage lighting separately in three basic colors of red, green, and blue to obtain the color display test data; According to the color display test data, obtain the color display coordinate information based on the color space coordinate system; According to the basic color coordinate information of the curtain and the color display coordinate information, obtain the curtain color influence index corresponding to each stage lighting; According to the stage lighting classification information, take the average value of the curtain color influence indexes of each type of stage lighting as the lighting influence coefficient of the lighting influence position corresponding to this type of stage lighting; Among them, the calculation formula of the curtain color influence index is: ; In the formula, R is the curtain color influence index, represents the basic color coordinate of the curtain, represents the color display coordinate when the stage lighting irradiates the curtain with red, represents the color display coordinate when the stage lighting irradiates the curtain with green, represents the color display coordinate when the stage lighting irradiates the curtain with blue; The specific light influence coefficient is as follows: In the formula, represents the light influence coefficient of the z-th type of light influence position, the curtain color influence index of the stage light corresponding to the i-th light influence position in the z-th type of light influence position, represents the total number of the z-th type of light influence positions, where, if then it represents the total number of light influence positions in the main light area, if then it represents the total number of light influence positions in the side light area, if then it represents the total number of light influence positions in the backlight area.

[0008] Preferably, obtaining the preset number of feature points according to the stage light parameter information and the color display test data specifically includes: Obtaining the standard color gamut reference coordinate information according to the stage light standard color gamut information, and the standard color gamut reference coordinate information represents the coordinates of the stage light standard color gamut reference color in the color space coordinate system; Obtaining the color display coordinate information based on the color space coordinate system according to the color display test data; Taking the average value of the color display coordinates corresponding to each reference color as the reference color display coordinate according to the color display coordinate information; Obtaining the color difference coefficient according to the reference color display coordinate and the standard color gamut reference coordinate information; Obtaining the light influence position quantity information according to the light influence position information; Taking the product of the light influence position quantity and the color difference coefficient as the preset number of feature points; Among them, the calculation formula of the color difference coefficient is: In the formula, k is the color difference coefficient, represents the reference color display coordinate of the b-th reference color, represents the standard color gamut reference coordinate of the b-th reference color.

[0009] Preferably, obtaining the curtain brightness adjustment information according to the stage light data, the light influence feature point information and the stage curtain data specifically includes: Obtaining the stage light color data and the stage curtain color data according to the stage light data and the stage curtain data, and the stage curtain color data is the color information with the largest color area proportion in the stage background curtain display image; Obtaining the stage light color RGB value and the stage curtain color RGB value based on gamma value correction according to the stage light color data and the stage curtain color data; Obtain the color contrast according to the RGB values of the stage lighting colors and the RGB values of the stage curtain colors; Obtain the basic brightness information according to the stage lighting data and the information of the lighting influence feature points; Obtain the target brightness information of the curtain according to the basic brightness information and the color contrast; Obtain the curtain brightness adjustment information according to the target brightness information of the curtain and the stage curtain data; Among them, the basic brightness is specifically: In the formula, is the basic brightness, represents the brightness of the j-th stage light, represents the included angle between the line connecting the j-th stage light and the g-th lighting influence feature point and the curtain, represents the distance between the j-th stage light and the g-th lighting influence feature point, and G is the total number of lighting influence feature points; The target brightness of the curtain is specifically: In the formula, T is the target brightness of the curtain, is the color contrast.

[0010] Preferably, the stage curtain background change of the stage curtain according to the curtain change index specifically includes: Compare the performance time information with the curtain change time node information to judge whether it is in the curtain change stage. If the performance time , then enter the curtain change stage, that is, the stage curtain is ready to perform the w-th stage curtain background change, represents the curtain change time node of the w-th stage curtain background change; Obtain the curtain change index according to the curtain change time node information, the curtain change characteristic action information, the stage performance action data and the performance time information; Judge whether to perform the stage curtain background change according to the curtain change index. If so, obtain the stage curtain color data before and after each stage curtain background change according to the stage curtain background change information; Take the stage curtain color data before the stage curtain background change as the first curtain color data, and take the stage curtain color data after the stage curtain background change as the second curtain color data; Based on the gamma value correction, obtain the RGB values corresponding to the first curtain color data and the second curtain color data according to the first curtain color data and the second curtain color data; Obtain the curtain color contrast based on the RGB values of the first curtain color data and the second curtain color data; Obtain the basic curtain change time information based on the stage performance process; Obtain the curtain change time based on the curtain color contrast and the basic curtain change time information; Based on the curtain change time, change the stage curtain background; Among them, if the curtain change index or , then keep the stage curtain background unchanged. If the curtain change index , then perform the stage curtain background change; The calculation formula of the curtain change index is: In the formula, H is the curtain change index, is the performance time, represents the action amplitude value of the qth action monitoring point, represents the action amplitude standard value of the qth action monitoring point of the curtain change characteristic action of the wth stage curtain background change, and P is the total number of action monitoring points.

[0011] Furthermore, a stage background curtain intelligent control system based on data acquisition is proposed to implement the control method as described above, including: The main control module, which is used to irradiate the stage curtain separately with red, green, and blue as the three reference colors of the stage lights, obtain color display test data, based on the color space coordinate system according to the color display test data, obtain color display coordinate information, according to the stage light parameter information and the color display test data, obtain the preset number of feature points, according to the light influence position order information, select the light influence positions from front to back based on the preset number of feature points, obtain light influence feature point information, according to the curtain target brightness information and the stage curtain data, obtain curtain brightness adjustment information, compare the performance time information with the curtain change time node information to determine whether it is in the curtain change stage, judge whether to change the stage curtain background according to the curtain change index, and obtain the curtain change time according to the curtain color contrast and the basic curtain change time information; The information acquisition module, which is used to acquire stage structure information, stage light information, stage sensor information, and stage curtain information. According to the stage structure information, take the intersection of the stage light irradiation path and the stage curtain as the light influence point, obtain light influence position information, obtain stage light data, stage curtain data, stage light brightness data, stage light color data, stage curtain brightness data, and stage curtain color data, monitor the stage performance in real time, and obtain stage performance action data and performance time information; An evaluation module, which is used to obtain the curtain color influence index corresponding to each stage light according to the curtain basic color coordinate information and the color display coordinate information, obtain the light influence coefficient according to the light influence position classification information, obtain the stage light influence index according to the light influence position information and the light influence coefficient, obtain the color difference coefficient according to the reference color display coordinate and the standard color gamut reference coordinate information, and obtain the curtain change index according to the curtain change time node information, the curtain change characteristic action information, the stage performance action data and the performance time information; A display module, which interacts with the main control module and is used to output and display the stage light classification information, the light influence feature point information, the curtain brightness adjustment information and the curtain change time.

[0012] Optionally, the main control module specifically includes: A control unit, which is used to obtain the preset number of feature points according to the stage light parameter information and the color display test data, select the light influence positions from the front to the back based on the preset number of feature points according to the light influence position sequence information, obtain the light influence feature point information, obtain the curtain brightness adjustment information according to the curtain target brightness information and the stage curtain data, compare the performance time information with the curtain change time node information to judge whether it is in the curtain change stage, judge whether to perform the stage curtain background change according to the curtain change index, and obtain the curtain change time according to the curtain color contrast ratio and the curtain change basic time information; An information receiving unit, which interacts with the information acquisition module and the evaluation module and is used to receive data and transmit it to the test unit; A test unit, which is used to irradiate the stage curtain with the stage lights separately in three reference colors of red, green and blue, obtain the color display test data, and obtain the color display coordinate information based on the color space coordinate system according to the color display test data.

[0013] Optionally, the information acquisition module specifically includes: A first acquisition unit, which is used to acquire the stage structure information, the stage light information, the stage sensor information and the stage curtain information, and take the intersection of the stage light irradiation path and the stage curtain as the light influence point according to the stage structure information to obtain the light influence position information; A second acquisition unit, which is used to acquire the stage light data, the stage curtain data, the stage light brightness data, the stage light color data, the stage curtain brightness data and the stage curtain color data, monitor the stage performance in real time, and obtain the stage performance action data and the performance time information.

[0014] Optionally, the evaluation module specifically includes: The first evaluation unit is configured to obtain a curtain color influence index corresponding to each stage light according to the curtain basic color coordinate information and the color display coordinate information, obtain a light influence coefficient according to the light influence position classification information, and obtain a stage light influence index according to the light influence position information and the light influence coefficient. The second evaluation unit is configured to obtain a color difference coefficient according to the reference color display coordinates and the standard color gamut reference coordinate information, and obtain a curtain change index according to the curtain change time node information, the curtain change characteristic action information, the stage performance action data, and the performance time information.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides an intelligent control method and system for a stage background curtain based on data collection. By using the light influence coefficient, the influence of stage lights in different areas on the curtain is accurately analyzed. Through the stage light influence index, the large amount of data caused by directly analyzing the influence of all stage lights is avoided, ensuring the accuracy of the analysis results. Through the curtain brightness adjustment information, the adjustment rate of the stage curtain brightness is improved, ensuring the stability and unity of the stage visual effect. Through the curtain change index, the stage background curtain is accurately and timely changed, ensuring the synchronization between the stage background curtain and the performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a flowchart of an intelligent control method for a stage background curtain based on data collection proposed by the present invention; Figure 2 It is a flowchart for obtaining light influence characteristic point information in the present invention; Figure 3 It is a flowchart for obtaining a light influence coefficient in the present invention; Figure 4 It is a flowchart for obtaining the preset number of characteristic points in the present invention; Figure 5 It is a flowchart for obtaining curtain brightness adjustment information in the present invention; Figure 6 It is a structural block diagram of an intelligent control system for a stage background curtain based on data collection proposed by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0018] Refer to Figure 1 - Figure 5 As shown, the intelligent control method for a stage background curtain based on data collection in the embodiment of the present invention includes: Obtain stage structure information, where the stage structure information includes stage lighting information, stage sensor information, and stage curtain information; Based on the stage structure information, take the intersection point of the stage lighting irradiation path and the stage curtain as the lighting influence point, and obtain the lighting influence position information; Based on the analysis of the stage lighting area, obtain the lighting influence feature point information; Specifically, based on the analysis of the stage lighting area, obtaining the lighting influence feature point information specifically includes: Based on the analysis of the stage lighting area, classify the stage lighting to obtain the stage lighting classification information, where the stage lighting area includes the main light area, side light area, and backlight area; Based on the lighting influence position information, obtain the stage lighting information corresponding to each lighting influence position; According to the stage lighting classification information, classify the lighting influence positions to obtain the lighting influence position classification information; According to the lighting influence position classification information, obtain the lighting influence coefficient; According to the lighting influence position information and the lighting influence coefficient, obtain the stage lighting influence index; According to the stage lighting information, obtain the stage lighting parameter information, where the stage lighting parameter information includes the stage lighting standard color gamut information; Obtain the color display test data; According to the stage lighting parameter information and the color display test data, obtain the preset number of feature points; Arrange the lighting influence positions in descending order of the stage lighting influence index to obtain the lighting influence position order information; According to the lighting influence position order information, select the lighting influence positions from front to back based on the preset number of feature points to obtain the lighting influence feature point information; Among them, the calculation formula of the stage lighting influence index is: In the formula, represents the stage lighting influence index of the s-th lighting influence position, represents the angle between the line connecting the j-th stage lighting and the s-th lighting influence position and the curtain, represents the distance between the j-th stage lighting and the s-th lighting influence position, The distance between the s-th lighting influence position and the center position of the curtain.

[0019] In this solution, the stage lights are classified according to the different areas to which they belong. Based on the stage light classification information, the positions affected by the lights are classified to obtain the classification information of the positions affected by the lights. Based on the classification information of the positions affected by the lights, the light influence coefficient is obtained. Based on the information of the positions affected by the lights and the light influence coefficient, the stage light influence index is obtained. Based on the stage light parameter information and the color display test data, the preset number of feature points is obtained. Based on the order information of the positions affected by the lights, the positions affected by the lights are selected from the front to the back with the preset number of feature points as the benchmark to obtain the information of the feature points affected by the lights. By selecting the characteristic positions where the stage lights affect the curtain, the large amount of data caused by directly analyzing the effects of all stage lights is avoided, and at the same time, the accuracy of the analysis results is ensured. It can be understood that the degrees of influence of different stage lights on the stage curtain are also very different. If the influence conditions of each stage light are analyzed based on the irradiation points of each stage light on the curtain, while increasing the amount of data processing, each irradiation point will also be affected by other stage lights, making it difficult to ensure the accuracy of the data. Therefore, in this solution, the irradiation angle of the stage lights is extended, and the intersection point of the extended line and the stage curtain is used as the light influence point. Based on the light influence point, the influence conditions of the lights are analyzed, avoiding the data processing problems caused by using the stage lights as the basis.

[0020] In this embodiment, the main light area refers to the irradiation area of the light source that irradiates the stage from the front of the stage, the side light area refers to the irradiation area of the light source that irradiates from both sides (left or right) of the stage, and the backlight area refers to the irradiation area of the light source that is located at the back or above the stage and irradiates the stage.

[0021] Specifically, based on the classification information of the positions affected by the lights, obtaining the light influence coefficient specifically includes: Based on the stage curtain information, the basic information of the stage curtain is obtained, and the basic information of the stage curtain includes the basic color information of the stage curtain; Based on the color space coordinate system, the basic color of the stage curtain is converted to obtain the coordinate information of the basic curtain color, and the coordinate information of the basic curtain color represents the position of the basic color of the stage curtain in the color space coordinate system; The stage lights are separately irradiated on the stage curtain with three basic colors of red, green, and blue to obtain the color display test data; Based on the color space coordinate system, the color display coordinate information is obtained according to the color display test data; Based on the coordinate information of the basic curtain color and the color display coordinate information, the curtain color influence index corresponding to each stage light is obtained; Based on the stage light classification information, the average value of the curtain color influence indexes of each type of stage light is used as the light influence coefficient of the position affected by the corresponding type of stage light; Among them, the calculation formula of the curtain color influence index is as follows: ; where R is the curtain color influence index, represents the curtain base color coordinates, represents the color display coordinates when the stage light irradiates the curtain with red light, represents the color display coordinates when the stage light irradiates the curtain with green light, represents the color display coordinates when the stage light irradiates the curtain with blue light; The specific value of the light influence coefficient is as follows: In the formula, represents the light influence coefficient of the z-th type of light influence position, the curtain color influence index of the stage light corresponding to the i-th light influence position in the z-th type of light influence position, represents the total number of the z-th type of light influence positions, where, , if , it represents the total number of light influence positions in the main light area. If , it represents the total number of light influence positions in the side light area. If , it represents the total number of light influence positions in the backlight area.

[0022] In this solution, through the color space coordinate system, the basic color of the stage curtain is transformed to obtain the curtain base color coordinate information. The stage light is separately irradiated on the stage curtain with three reference colors of red, green, and blue to obtain the color display test data. According to the color display test data and based on the color space coordinate system, the color display coordinate information is obtained. According to the curtain base color coordinate information and the color display coordinate information, the curtain color influence index corresponding to each stage light is obtained. According to the stage light classification information, the average value of the curtain color influence indexes of each type of stage light is used as the light influence coefficient of the light influence position corresponding to this type of stage light. Through the light influence coefficient, the influence of the stage lights in different areas on the curtain can be accurately analyzed. It can be understood that when the stage curtain does not display the background but is displayed in the basic color white, the color display coordinates obtained by irradiating the stage curtain with three reference colors of red, green, and blue accurately reflect the influence of each stage light on the stage curtain. Then, taking the average value of the curtain color influence indexes of each type of stage light as the light influence coefficient of the light influence position corresponding to this type of stage light improves the accuracy and reliability of data analysis.

[0023] In this embodiment, the color space coordinate system is the CIE1931 chromaticity diagram, which represents colors through x and y coordinates. The CIE1931 chromaticity diagram can represent the hue (color phase) and saturation (chromaticity) of colors and display the colors of all visible spectra.

[0024] Specifically, according to the stage lighting parameter information and color display test data, the preset number of feature points is obtained, which specifically includes: According to the standard color gamut information of stage lighting, the standard color gamut reference coordinate information is obtained, and the standard color gamut reference coordinate information represents the coordinates of the standard color gamut reference color of stage lighting in the color space coordinate system; According to the color display test data, based on the color space coordinate system, the color display coordinate information is obtained; According to the color display coordinate information, the average value of the color display coordinates corresponding to each reference color is used as the reference color display coordinate; According to the reference color display coordinate and the standard color gamut reference coordinate information, the color difference coefficient is obtained; According to the lighting influence position information, the lighting influence position quantity information is obtained; The product of the lighting influence position quantity and the color difference coefficient is used as the preset number of feature points; Wherein, the calculation formula of the color difference coefficient is: In the formula, k is the color difference coefficient, represents the reference color display coordinate of the b-th reference color, represents the standard color gamut reference coordinate of the b-th reference color.

[0025] In this solution, through the standard color gamut information of stage lighting, the standard color gamut reference coordinate information is obtained, and the average value of the color display coordinates corresponding to each reference color is used as the reference color display coordinate. For example, the average value of the color coordinates when all stage lights irradiate the curtain with red light is used as the color display coordinate of the reference color red. According to the reference color display coordinate and the standard color gamut reference coordinate information, the color difference coefficient is obtained. According to the lighting influence position information, the lighting influence position quantity information is obtained, and the product of the lighting influence position quantity and the color difference coefficient is used as the preset number of feature points.

[0026] It can be understood that the selection of lighting influence feature points is directly related to the brightness adjustment of the stage curtain. Therefore, the data of lighting influence feature points is crucial. By comparing the color display situation of the stage lighting irradiating the curtain with the three primary colors with the standard color gamut reference coordinates, the color difference coefficient is obtained. The larger the color difference coefficient, the greater the color display difference. Therefore, more lighting influence feature points are needed to analyze the influence of stage lighting. In this embodiment, the minimum value of the number of lighting influence feature points is 4.

[0027] In this embodiment, the standard color gamut of stage lighting is the sRGB color gamut, and the coordinate values of the reference colors are (0.640, 0.330) (red), (0.300, 0.600) (green), and (0.150, 0.060) (blue).

[0028] Based on the stage sensors, stage lighting data and stage curtain data are obtained. The stage lighting data includes stage lighting brightness data and stage lighting color data, and the stage curtain data includes stage curtain brightness data and stage curtain color data; According to the stage lighting data, lighting influence feature point information, and stage curtain data, curtain brightness adjustment information is obtained; Specifically, obtaining curtain brightness adjustment information according to the stage lighting data, lighting influence feature point information, and stage curtain data specifically includes: According to the stage lighting data and stage curtain data, stage lighting color data and stage curtain color data are obtained. The stage curtain color data is the color information with the largest proportion of color area in the stage background curtain display image; Based on gamma value correction, stage lighting color RGB values and stage curtain color RGB values are obtained according to the stage lighting color data and stage curtain color data; According to the stage lighting color RGB values and stage curtain color RGB values, the color contrast is obtained; According to the stage lighting data and lighting influence feature point information, basic brightness information is obtained; According to the basic brightness information and color contrast, curtain target brightness information is obtained; According to the curtain target brightness information and stage curtain data, curtain brightness adjustment information is obtained; Among them, the basic brightness is specifically: In the formula, is the basic brightness, represents the brightness of the j-th stage light, represents the angle between the line connecting the j-th stage light and the g-th lighting influence feature point and the curtain, represents the distance between the j-th stage light and the g-th lighting influence feature point, and G is the total number of lighting influence feature points; The curtain target brightness is specifically: In the formula, T is the curtain target brightness, is the color contrast.

[0029] In this solution, based on gamma value correction, the RGB values of the stage lighting color and the stage curtain color are obtained according to the stage lighting color data and the stage curtain color data. According to the RGB values of the stage lighting color and the stage curtain color, the color contrast is obtained. According to the stage lighting data and the information of the lighting influence feature points, the basic brightness information is obtained. According to the basic brightness information and the color contrast, the target brightness information of the curtain is obtained. The target brightness of the curtain is compared with the existing brightness of the stage curtain to obtain the curtain brightness adjustment information.

[0030] It can be understood that if the stage lighting color is relatively dark (such as red light, blue light) and has a contrast with the curtain color, the brightness of the sky curtain usually needs to be brighter to better display the image or content and avoid the sky curtain from appearing too dull or difficult to identify. If the stage lighting color is close to the color of the sky curtain, it may be necessary to adjust the brightness to ensure that the pattern is clearly visible and avoid the two colors from being too blended and losing the visual effect.

[0031] In this embodiment, the contrast calculation formula is: In the formula, F is the contrast, represents the gamma value of the first color, represents the gamma value of the second color, represents the red component in the gamma value of the c-th color, represents the green component in the gamma value of the c-th color, represents the blue component in the gamma value of the c-th color.

[0032] According to the curtain brightness adjustment information, the brightness of the stage curtain is adjusted; Based on the settings of the stage performance process, the background change information of the stage curtain is obtained. The background change information of the stage curtain represents the number of background changes of the stage curtain in the stage performance process and the corresponding change content for each background change of the stage curtain; According to the stage performance process information and the background change information of the stage curtain, the curtain change time node information and the curtain change characteristic action information are obtained; The stage performance is monitored in real time to obtain the stage performance action data and the performance time information; The performance time information is compared with the curtain change time node information to determine whether it is in the curtain change stage. If so, according to the curtain change time node information, the curtain change characteristic action information, the stage performance action data and the performance time information, the curtain change index is obtained; According to the curtain change index, the background of the stage curtain is changed.

[0033] Specifically, changing the background of the stage curtain according to the curtain change index specifically includes: Compare the performance time information with the curtain change time node information to determine whether it is in the curtain change stage. If it is the performance time , then enter the curtain change stage, that is, the stage curtain is ready to perform the wth stage curtain background change, indicating the curtain change time node for the wth stage curtain background change; Obtain the curtain change index based on the curtain change time node information, curtain change characteristic action information, stage performance action data, and performance time information; Based on the curtain change index, determine whether to perform a stage curtain background change. If so, obtain the stage curtain color data before and after each stage curtain background change according to the stage curtain background change information; Take the stage curtain color data before the stage curtain background change as the first curtain color data, and take the stage curtain color data after the stage curtain background change as the second curtain color data; Based on the first curtain color data and the second curtain color data, obtain the RGB values corresponding to the first curtain color data and the second curtain color data based on gamma value correction; Based on the RGB values of the first curtain color data and the second curtain color data, obtain the curtain color contrast; Based on the stage performance process, obtain the basic curtain change time information; Obtain the curtain change time based on the curtain color contrast and the basic curtain change time information; Change the stage curtain background based on the curtain change time as a reference; Among them, if the curtain change index or , then keep the stage curtain background unchanged. If the curtain change index , then perform a stage curtain background change; The calculation formula for the curtain change index is: ; where H is the curtain change index, is the performance time, represents the action amplitude value at the qth action monitoring point, represents the action amplitude standard value at the qth action monitoring point of the curtain change characteristic action for the wth stage curtain background change, and P is the total number of action monitoring points.

[0034] In this solution, by comparing the performance time information with the curtain change time node information, it is determined whether to enter the curtain change stage. With a 5-second lead time before the time node, it ensures that the stage curtain background can be changed in a timely manner. Based on the curtain change time node information, curtain change characteristic action information, stage performance action data, and performance time information, a curtain change index is obtained. According to the curtain change index, it is determined whether to change the stage curtain background, and according to the color contrast before and after the stage curtain background change, different stage curtain background change times are set to avoid the excessive color difference during background switching from affecting the stage performance effect, ensuring the synchronization between the stage background curtain and the performance, enhancing the viewing and artistic appeal of the performance, and bringing a better visual experience to the audience.

[0035] It should be noted that in this solution, the stage performance action data is the action data obtained by monitoring different action monitoring points of stage actors, such as head monitoring points, hand monitoring points, leg monitoring points, etc. When the action monitoring point detects a change in the displacement of the action part, it is regarded as the start of a new action, and the action amplitude value of the previous action is sent. For example, when it is detected that the hand monitoring point moves from a stationary state or changes from moving to stationary, and the change in the moving direction is obtained, it is considered that the stage actor has started a new action, and the action amplitude value detected at this time is used as the action amplitude value of the previous action, and then the action amplitude value is set to 0.

[0036] Refer to Figure 6 As shown, further, in combination with the above-mentioned intelligent control method for the stage background curtain based on data collection, an intelligent control system for the stage background curtain based on data collection is proposed, including: The main control module is used to irradiate the stage curtain separately with three primary colors of red, green, and blue for the stage lights to obtain color display test data. Based on the color display test data and the color space coordinate system, color display coordinate information is obtained. According to the stage light parameter information and the color display test data, the preset number of feature points is obtained. According to the light influence position order information, the light influence positions are selected from front to back based on the preset number of feature points to obtain light influence feature point information. According to the curtain target brightness information and the stage curtain data, curtain brightness adjustment information is obtained. The performance time information is compared with the curtain change time node information to determine whether to enter the curtain change stage. According to the curtain change index, it is determined whether to change the stage curtain background. According to the curtain color contrast ratio and the curtain change basic time information, the curtain change time is obtained; An information acquisition module, which is used to acquire stage structure information, stage lighting information, stage sensor information, and stage curtain information. According to the stage structure information, the intersection point of the stage lighting irradiation path and the stage curtain is used as the lighting influence point to obtain the lighting influence position information. It acquires stage lighting data, stage curtain data, stage lighting brightness data, stage lighting color data, stage curtain brightness data, and stage curtain color data, and monitors the stage performance in real time to obtain stage performance action data and performance time information; An evaluation module, which is used to obtain the curtain color influence index corresponding to each stage lighting according to the curtain base color coordinate information and color display coordinate information, obtain the lighting influence coefficient according to the lighting influence position classification information, obtain the stage lighting influence index according to the lighting influence position information and the lighting influence coefficient, obtain the color difference coefficient according to the reference color display coordinate and the standard color gamut reference coordinate information, and obtain the curtain change index according to the curtain change time node information, curtain change characteristic action information, stage performance action data, and performance time information; A display module, which interacts with the main control module and is used to output and display stage lighting classification information, lighting influence characteristic point information, curtain brightness adjustment information, and curtain change time.

[0037] The main control module specifically includes: A control unit, which is used to obtain the preset number of characteristic points according to the stage lighting parameter information and color display test data, select the lighting influence positions from the front to the back based on the preset number of characteristic points according to the lighting influence position sequence information to obtain the lighting influence characteristic point information, obtain the curtain brightness adjustment information according to the curtain target brightness information and stage curtain data, compare the performance time information with the curtain change time node information to judge whether it is in the curtain change stage, judge whether to perform the stage curtain background change according to the curtain change index, and obtain the curtain change time according to the curtain color contrast and curtain change basic time information; An information receiving unit, which interacts with the information acquisition module and the evaluation module and is used to receive data and transmit it to the test unit; A test unit, which is used to irradiate the stage curtain with the stage lighting separately in three reference colors of red, green, and blue to obtain color display test data, and obtain color display coordinate information based on the color space coordinate system according to the color display test data.

[0038] The information acquisition module specifically includes: A first acquisition unit, which is used to acquire stage structure information, stage lighting information, stage sensor information, and stage curtain information. According to the stage structure information, the intersection point of the stage lighting irradiation path and the stage curtain is used as the lighting influence point, and the lighting influence position information is acquired. A second acquisition unit, which is used to acquire stage lighting data, stage curtain data, stage lighting brightness data, stage lighting color data, stage curtain brightness data, and stage curtain color data, and perform real-time monitoring on the stage performance to acquire stage performance action data and performance time information.

[0039] An evaluation module, specifically including: A first evaluation unit, which is used to acquire the curtain color influence index corresponding to each stage lighting according to the curtain basic color coordinate information and the color display coordinate information, acquire the lighting influence coefficient according to the lighting influence position classification information, and acquire the stage lighting influence index according to the lighting influence position information and the lighting influence coefficient. A second evaluation unit, which is used to acquire the color difference coefficient according to the reference color display coordinate and the standard color gamut reference coordinate information, and acquire the curtain change index according to the curtain change time node information, curtain change characteristic action information, stage performance action data, and performance time information.

[0040] In summary, the advantages of the present invention are as follows: The influence of stage lighting in different areas on the curtain is accurately analyzed through the lighting influence coefficient. Through the stage lighting influence index, the lighting influence characteristic point information is acquired, and the characteristic position of the stage lighting's influence on the curtain is selected, avoiding the huge amount of data caused by directly analyzing the influence of all stage lighting, and at the same time ensuring the accuracy of the analysis result. Through the basic brightness information and color contrast ratio, the curtain target brightness information is acquired. Through the curtain target brightness information and stage curtain data, the curtain brightness adjustment information is acquired, improving the adjustment rate of the stage curtain brightness and ensuring the stability and unity of the stage visual effect. Through the curtain change index, the stage curtain background is accurately and timely changed, ensuring the synchronization of the stage background curtain and the performance, enhancing the appreciation and artistic appeal of the performance, and bringing a better visual experience to the audience.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent control method for stage background curtains based on data acquisition, characterized in that, Including: Obtain stage structure information, where the stage structure information includes stage lighting information, stage sensor information, and stage curtain information; Based on the stage structure information, take the intersection point of the stage lighting irradiation path and the stage curtain as the lighting influence point, and obtain the lighting influence position information; Based on the analysis of the stage lighting area, obtain the lighting influence feature point information; Based on the stage sensors, obtain stage lighting data and stage curtain data, where the stage lighting data includes stage lighting brightness data and stage lighting color data, and the stage curtain data includes stage curtain brightness data and stage curtain color data; According to the stage lighting data, lighting influence feature point information, and stage curtain data, obtain the curtain brightness adjustment information; Adjust the brightness of the stage curtain according to the curtain brightness adjustment information; Based on the setting of the stage performance process, obtain the stage curtain background change information, where the stage curtain background change information represents the number of times the stage curtain background changes during the stage performance process and the corresponding change content for each stage curtain background change; According to the stage performance process information and the stage curtain background change information, obtain the curtain change time node information and the curtain change characteristic action information; Monitor the stage performance in real time, and obtain the stage performance action data and the performance time information; Compare the performance time information with the curtain change time node information to determine whether it is in the curtain change stage. If so, according to the curtain change time node information, curtain change characteristic action information, stage performance action data, and performance time information, obtain the curtain change index; According to the curtain change index, perform a stage curtain background change on the stage curtain.

2. The intelligent control method for stage background curtain based on data acquisition according to claim 1, wherein The obtaining of the lighting influence feature point information based on the analysis of the stage lighting area specifically includes: Based on the analysis of the stage lighting area, classify the stage lighting to obtain stage lighting classification information. The stage lighting area includes the main light area, side light area, and backlight area; Based on the lighting influence position information, obtain the stage lighting information corresponding to each lighting influence position; According to the stage lighting classification information, classify the lighting influence positions to obtain the lighting influence position classification information; According to the lighting influence position classification information, obtain the lighting influence coefficient; According to the lighting influence position information and the lighting influence coefficient, obtain the stage lighting influence index; According to the stage lighting information, obtain the stage lighting parameter information, where the stage lighting parameter information includes the stage lighting standard color gamut information; Obtain the color display test data; According to the stage lighting parameter information and the color display test data, obtain the preset number of feature points; Arrange the lighting influence positions in descending order of the stage lighting influence index to obtain the lighting influence position order information; According to the lighting influence position order information, select the lighting influence positions from the front to the back based on the preset number of feature points to obtain the lighting influence feature point information; Among them, the calculation formula of the stage lighting influence index is: In the formula, represents the stage lighting influence index of the s-th lighting influence position, represents the included angle between the line connecting the j-th stage lighting and the s-th lighting influence position and the curtain, represents the distance between the j-th stage lighting and the s-th lighting influence position, is the distance between the s-th lighting influence position and the center position of the curtain.

3. The intelligent control method for the stage background curtain based on data acquisition according to claim 2, wherein The obtaining of the lighting influence coefficient according to the lighting influence position classification information specifically includes: According to the stage curtain information, obtain the basic information of the stage curtain, where the basic information of the stage curtain includes the basic color information of the stage curtain; Based on the color space coordinate system, the basic color of the stage curtain is converted to obtain the coordinate information of the basic color of the curtain. The basic color coordinate of the curtain represents the position of the basic color of the stage curtain in the color space coordinate system; The stage lights are separately irradiated on the stage curtain with three primary colors of red, green, and blue respectively to obtain color display test data; Based on the color space coordinate system, color display coordinate information is obtained according to the color display test data; According to the basic color coordinate information of the curtain and the color display coordinate information, the curtain color influence index corresponding to each stage light is obtained; According to the stage light classification information, the average value of the curtain color influence index of each type of stage light is used as the light influence coefficient of the light influence position corresponding to this type of stage light; Among them, the calculation formula of the curtain color influence index is: ; where R is the influence index of the curtain color, represents the basic color coordinates of the curtain, represents the color display coordinates when the stage light irradiates the curtain with red light, represents the color display coordinates when the stage light irradiates the curtain with green light, represents the color display coordinates when the stage light irradiates the curtain with blue light; The light influence coefficient is specifically: In the formula, represents the lighting influence coefficient of the z-th type of lighting influence position, the curtain color influence index of the stage lighting corresponding to the i-th lighting influence position in the z-th type of lighting influence position, represents the total number of the z-th type of lighting influence positions, where, , if , it represents the total number of lighting influence positions in the main light area. If , it represents the total number of lighting influence positions in the side light area. If , it represents the total number of lighting influence positions in the backlight area.

4. The intelligent control method for the stage background curtain based on data acquisition according to claim 2, wherein The obtaining of the preset number of feature points according to the stage light parameter information and the color display test data specifically includes: According to the standard color gamut information of the stage light, the standard color gamut reference coordinate information is obtained. The standard color gamut reference coordinate information represents the coordinates of the standard color gamut reference color of the stage light in the color space coordinate system; Based on the color space coordinate system, color display coordinate information is obtained according to the color display test data; According to the color display coordinate information, the average value of the color display coordinates corresponding to each primary color is used as the reference color display coordinate; According to the reference color display coordinate and the standard color gamut reference coordinate information, the color difference coefficient is obtained; According to the light influence position information, the number information of the light influence positions is obtained; The product of the number of light influence positions and the color difference coefficient is used as the preset number of feature points; Among them, the calculation formula of the color difference coefficient is: where k is the color difference coefficient, represents the reference color display coordinates of the b-th reference color, represents the standard color gamut reference coordinates of the b-th reference color.

5. The intelligent control method for the stage background curtain based on data collection according to claim 1, wherein The obtaining of the curtain brightness adjustment information according to the stage light data, the light influence feature point information, and the stage curtain data specifically includes: According to the stage light data and the stage curtain data, the stage light color data and the stage curtain color data are obtained. The stage curtain color data is the color information with the largest color area proportion in the stage background curtain display image; Based on gamma value correction, the RGB values of the stage light color and the RGB values of the stage curtain color are obtained according to the stage light color data and the stage curtain color data; According to the RGB values of the stage light color and the RGB values of the stage curtain color, the color contrast is obtained; According to the stage light data and the light influence feature point information, the basic brightness information is obtained; According to the basic brightness information and the color contrast, the target brightness information of the curtain is obtained; According to the target brightness information of the curtain and the stage curtain data, the curtain brightness adjustment information is obtained; Among them, the basic brightness is specifically: In the formula, is the base brightness, represents the brightness of the j-th stage light, represents the angle between the line connecting the j-th stage light and the g-th light influence feature point and the curtain, represents the distance between the j-th stage light and the g-th light influence feature point, and G is the total number of light influence feature points; The target brightness of the curtain is specifically: where T is the target brightness of the curtain, and is the color contrast ratio.

6. The intelligent control method for the stage background curtain based on data acquisition according to claim 1, characterized in that, The performing of the stage curtain background change on the stage curtain according to the curtain change index specifically includes: Compare the performance time information with the curtain change time node information to determine whether it is in the curtain change stage. If it is the performance time , then enter the curtain change stage, that is, the stage curtain is ready to perform the w-th stage curtain background change, indicating the curtain change time node for the w-th stage curtain background change; According to the curtain change time node information, the curtain change characteristic action information, the stage performance action data, and the performance time information, the curtain change index is obtained; According to the curtain change index, determine whether to change the stage curtain background. If so, obtain the stage curtain color data before and after each stage curtain background change according to the stage curtain background change information; Take the stage curtain color data before the stage curtain background change as the first curtain color data, and take the stage curtain color data after the stage curtain background change as the second curtain color data; Based on the first curtain color data and the second curtain color data, obtain the corresponding RGB values of the first curtain color data and the second curtain color data based on gamma value correction; Based on the RGB values of the first curtain color data and the second curtain color data, obtain the curtain color contrast; Based on the stage performance process, obtain the basic curtain change time information; According to the curtain color contrast and the basic curtain change time information, obtain the curtain change time; Based on the curtain change time as a reference, change the stage curtain background; Among them, if the curtain change index or , the background of the stage curtain remains unchanged. If the curtain change index , the background of the stage curtain changes; The calculation formula of the curtain change index is: In the formula, H is the curtain change index, is the performance time, represents the action amplitude value of the q-th action monitoring point, represents the action amplitude standard value of the q-th action monitoring point of the curtain change characteristic action of the w-th stage curtain background change, and P is the total number of action monitoring points.

7. A smart control system for a stage background curtain based on data collection, which is used to implement the control method described in any one of claims 1-6, characterized in that, Including: The main control module is used to irradiate the stage curtain with the stage lights separately in three reference colors of red, green, and blue to obtain color display test data. According to the color display test data, obtain color display coordinate information based on the color space coordinate system. According to the stage light parameter information and the color display test data, obtain the preset number of feature points. According to the light influence position order information, select the light influence positions from front to back based on the preset number of feature points to obtain light influence feature point information. According to the curtain target brightness information and the stage curtain data, obtain the curtain brightness adjustment information. Compare the performance time information with the curtain change time node information to determine whether it is in the curtain change stage. According to the curtain change index, determine whether to change the stage curtain background. According to the curtain color contrast and the basic curtain change time information, obtain the curtain change time; The information acquisition module is used to obtain the stage structure information, stage light information, stage sensor information, and stage curtain information. According to the stage structure information, take the intersection of the stage light irradiation path and the stage curtain as the light influence point to obtain the light influence position information. Obtain the stage light data, stage curtain data, stage light brightness data, stage light color data, stage curtain brightness data, and stage curtain color data, and monitor the stage performance in real time to obtain the stage performance action data and the performance time information; The evaluation module is used to obtain the curtain color influence index corresponding to each stage light according to the curtain basic color coordinate information and the color display coordinate information. Obtain the light influence coefficient according to the light influence position classification information. Obtain the stage light influence index according to the light influence position information and the light influence coefficient. Obtain the color difference coefficient according to the reference color display coordinate and the standard color gamut reference coordinate information. Obtain the curtain change index according to the curtain change time node information, curtain change characteristic action information, stage performance action data, and performance time information; A display module, which interacts with the main control module and is used to output and display stage lighting classification information, lighting impact feature point information, curtain brightness adjustment information, and curtain change time.

8. The intelligent control system for stage background curtain based on data acquisition according to claim 7, characterized in that The main control module specifically includes: A control unit, which is used to obtain the preset number of feature points according to the stage lighting parameter information and color display test data, select the lighting impact positions from front to back based on the preset number of feature points according to the lighting impact position sequence information to obtain the lighting impact feature point information, obtain the curtain brightness adjustment information according to the curtain target brightness information and stage curtain data, compare the performance time information with the curtain change time node information to determine whether to enter the curtain change stage, determine whether to change the stage curtain background according to the curtain change index, and obtain the curtain change time according to the curtain color contrast and curtain change basic time information; An information receiving unit, which interacts with the information acquisition module and the evaluation module and is used to receive data and transmit it to the test unit; A test unit, which is used to irradiate the stage curtain with the stage lighting separately in three reference colors of red, green, and blue to obtain color display test data, and obtain color display coordinate information based on the color space coordinate system according to the color display test data.

9. The intelligent control system for stage background curtain based on data acquisition according to claim 7, characterized in that, The information acquisition module specifically includes: A first acquisition unit, which is used to acquire stage structure information, stage lighting information, stage sensor information, and stage curtain information, and take the intersection of the stage lighting irradiation path and the stage curtain as the lighting impact point according to the stage structure information to obtain the lighting impact position information; A second acquisition unit, which is used to acquire stage lighting data, stage curtain data, stage lighting brightness data, stage lighting color data, stage curtain brightness data, and stage curtain color data, and monitor the stage performance in real time to obtain stage performance action data and performance time information.

10. The intelligent control system for stage background curtain based on data acquisition according to claim 7, characterized in that, The evaluation module specifically includes: A first evaluation unit, which is used to obtain the curtain color impact index corresponding to each stage lighting according to the curtain basic color coordinate information and the color display coordinate information, obtain the lighting impact coefficient according to the lighting impact position classification information, and obtain the stage lighting impact index according to the lighting impact position information and the lighting impact coefficient; A second evaluation unit, which is used to obtain the color difference coefficient according to the reference color display coordinate and the standard color gamut reference coordinate information, and obtain the curtain change index according to the curtain change time node information, curtain change characteristic action information, stage performance action data, and performance time information.

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