1. A liquid crystal display screen intelligent control regulation and control method based on cloud computing is characterized in that: the method comprises the following steps:

h1, conference room area division: dividing the areas in the conference room through an area dividing module, and sequentially numbering the positions of all sub-areas in the conference room according to a set sequence;

h2, area brightness detection: detecting the ambient brightness and the backlight brightness of each sub-area in the conference room through a brightness detection module respectively, and analyzing the average ambient brightness and the average backlight brightness of the areas in the conference room;

h3, display screen regulation and control brightness analysis: extracting standard display brightness set by the liquid crystal display screen in the conference room stored in the storage database through a brightness analysis module, calculating comprehensive regulation and control brightness of the liquid crystal display screen in the conference room, and regulating and controlling the brightness of the liquid crystal display screen in the conference room through a cloud regulation and control platform;

h4, obtaining the size ratio of the display screen: respectively acquiring the size of a liquid crystal display screen in a conference room and the standard size of an area in the conference room through a size acquisition module, and analyzing the size ratio of the liquid crystal display screen in the conference room;

h5, display screen chromaticity acquisition: respectively detecting red primary color values, green primary color values and blue primary color values at pixel points of spliced screens in the liquid crystal display screen in the conference room through a color detection module to obtain display picture colors of the spliced screens in the liquid crystal display screen in the conference room;

h6, display screen chromaticity analysis: respectively counting the display image chromaticity of each spliced screen in the liquid crystal display screen in the conference room through a chromaticity analysis module, and calculating the average display image chromaticity of the liquid crystal display screen in the conference room;

h7, regional temperature and humidity detection: the temperature and humidity around each spliced screen in the liquid crystal display screen in the conference room are respectively detected through a temperature and humidity detection module, and the temperature and humidity around each spliced screen in the liquid crystal display screen in the conference room are counted;

h8, analysis of display screen regulation influence coefficient: the standard appropriate size ratio of the liquid crystal display screen in the conference room and the indoor area stored in the storage database is extracted through the analysis server, the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room is calculated, and the chromaticity regulation and control of the liquid crystal display screen in the conference room is carried out through the cloud regulation and control platform.

2. The intelligent control and regulation method for the liquid crystal display screen based on the cloud computing, according to claim 1, is characterized in that: the step H2 includes the following steps:

h21, detecting the brightness of the environment around each sub-area in the conference room, counting the brightness of the environment around each sub-area in the conference room, and forming a set P (P) of the brightness of the environment around each sub-area in the conference room₁,p₂,...,p_i,...,p_n)，p_iRepresenting the ambient brightness of the ith sub-area in the conference room;

h22, and calculating average ambient brightness of the conference room area The average ambient brightness of the indoor area of the conference is represented, and n is the number of sub-areas divided in the indoor area of the conference;

h23, detecting the backlight brightness of each sub-area in the conference room, counting the backlight brightness of each sub-area in the conference room, and forming a backlight brightness set P ' (P ') of each sub-area in the conference room '₁,p′₂,...,p′_i,...,p′_n)，p′_iThe backlight brightness of the ith sub-area in the conference room;

h24, and calculating average backlight brightness of the conference room area Expressed as the average backlight brightness of the area in the conference room, and n is expressed as the number of sub-areas divided in the area in the conference room.

3. The intelligent control and regulation method for the liquid crystal display screen based on the cloud computing, according to claim 1, is characterized in that: the calculation formula of the comprehensive regulation and control brightness of the liquid crystal display screen in the conference room in the step H3 isP_{Regulation and control}Expressed as the comprehensive regulation and control brightness of the liquid crystal display screen in the conference room, alpha, beta and chi are respectively expressed as a first photosensitive influence coefficient, a second photosensitive influence coefficient and a third photosensitive influence coefficient, P_{Sign board}Indicating the standard display brightness set for the liquid crystal display in the conference room.

4. The intelligent control and regulation method for the liquid crystal display screen based on the cloud computing, according to claim 1, is characterized in that: in the step H4, the length a and the height C of the liquid crystal display screen in the conference room are respectively obtained, the length A ', the width D ' and the height C ' of the area in the conference room are obtained, and the maximum viewing distance D corresponding to the size of the liquid crystal display screen in the conference room is extracted_maxAnalyzing the size ratio of the liquid crystal display screen in the conference roomk is expressed as the size ratio of the liquid crystal display in the conference room.

5. The intelligent control and regulation method for the liquid crystal display screen based on the cloud computing, according to claim 1, is characterized in that: the step H5 includes dividing the liquid crystal display screen in the conference room into splicing screen areas according to the splicing screen area dividing mode in the liquid crystal display screen, and numbering the splicing screen areas sequentially from left to right and from top to bottom to form a position number set W (W) of each splicing screen area in the liquid crystal display screen in the conference room₁,w₂,...,w_j,...,w_m)，w_jAnd the position number of the jth spliced screen in the liquid crystal display screen in the conference room is shown.

6. The intelligent control and regulation method for the liquid crystal display screen based on the cloud computing, according to claim 1, is characterized in that: the step H5 further includes the following steps:

h51, detecting the red primary color values at the pixel points of the spliced screens in the liquid crystal display screen in the conference room through a chromaticity detector to form a red primary color value set W at the pixel points of the spliced screens in the liquid crystal display screen in the conference room_jR(w_jR₁,w_jR₂,...,w_jR_f,...,w_jR_v)，w_jR_fThe color value of the primary color of the red at the f-th pixel point of the j-th spliced screen in the liquid crystal display screen in the conference room is represented;

h52, and simultaneously detecting the green primary color values at the pixel points of the spliced screens in the liquid crystal display screen in the conference room to form a green primary color value set W at the pixel points of the spliced screens in the liquid crystal display screen in the conference room_jG(w_jG₁,w_jG₂,...,w_jG_f,...,w_jG_v)，w_jR_fThe primary color value is expressed as the green primary color value at the f-th pixel point of the j-th spliced screen in the liquid crystal display screen in the conference room;

h53, detecting the blue primary color values at the pixel points of the spliced screens in the liquid crystal display screen in the conference room, and forming a blue primary color value set W at the pixel points of the spliced screens in the liquid crystal display screen in the conference room_jB(w_jB₁,w_jB₂,...,w_jB_f,...,w_jB_v)，w_jR_fThe primary color value is expressed as a blue primary color value at the f-th pixel point of the j-th spliced screen in the liquid crystal display screen in the conference room;

h54, analyzing display image chromaticity of each spliced screen in liquid crystal display screen in conference roomθ_jAnd the chromaticity of the display picture of the jth spliced screen in the liquid crystal display screen in the conference room is shown.

7. The intelligent control and regulation method for the liquid crystal display screen based on the cloud computing, according to claim 1, is characterized in that: the average display picture chromaticity calculation formula of the liquid crystal display screen in the conference room is The average display frame chromaticity of the liquid crystal display screen in the conference room is represented, and m represents the number of spliced screens in the liquid crystal display screen in the conference room.

8. The intelligent control and regulation method for the liquid crystal display screen based on the cloud computing, according to claim 1, is characterized in that: the step H7 includes detecting the temperature around each splicing screen in the liquid crystal display screen in the conference room through a temperature sensor to form a temperature set T (T) around each splicing screen in the liquid crystal display screen in the conference room₁,T₂,...,T_j,...,T_m)，T_jThe temperature around the jth spliced screen in the liquid crystal display screen in the conference room is represented; meanwhile, the humidity around each spliced screen in the liquid crystal display screen in the conference room is respectively detected through a humidity sensor to form a humidity set S (S) around each spliced screen in the liquid crystal display screen in the conference room₁,S₂,...,S_j,...,S_m)，S_jExpressed as the humidity around the jth of the lcd panels in the conference room.

9. The intelligent control and regulation method for the liquid crystal display screen based on the cloud computing, according to claim 1, is characterized in that: the comprehensive regulation and control chromaticity calculation formula of the liquid crystal display screen in the conference room isθ_{General assembly}Expressed as the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room, mu is expressed as the chromaticity influence coefficient corresponding to the size ratio of the liquid crystal display screen, and k_{Sign board}Expressed as the ratio of the standard suitable size of the liquid crystal display screen to the room area in the conference room, lambda_T、λ_SThe weight coefficients are respectively expressed as the influence weight coefficients of the ambient temperature and humidity of the liquid crystal display screen on the display chromaticity of the screen.

10. The utility model provides a liquid crystal display intelligent control regulation and control system based on cloud calculates which characterized in that: the area division module is connected with the brightness detection module, the brightness analysis module is respectively connected with the brightness detection module, the storage database and the cloud regulation and control platform, the chromaticity detection module is connected with the chromaticity analysis module, the analysis server is respectively connected with the size acquisition module, the chromaticity analysis module, the temperature and humidity detection module and the storage database, and the cloud regulation and control platform is connected with the analysis server.

Background

Because the loss and the difference of the brightness and the chromaticity of the liquid crystal display screen are slowly displayed in the long-term use process, the play function of the liquid crystal display screen in the conference room is influenced. In order to ensure a consistent playing effect of the liquid crystal display screen in the conference room, the related work of brightness and chromaticity regulation and control on the liquid crystal display screen is needed.

However, the existing liquid crystal display screen regulation and control method has defects in the aspects of using chromaticity and brightness regulation and control:

1. the traditional method for regulating and controlling the liquid crystal display screen in the conference room generally adopts manual regulation and control, namely, conference personnel manually regulate and control the brightness of the liquid crystal display screen, so that the method for regulating and controlling the liquid crystal display screen in the conference room has the characteristic of low intelligent degree, and the problem of unbalanced display brightness of the liquid crystal display screen and the brightness of the surrounding environment exists, so that the visual comfort of the conference room participants is influenced;

2. the existing method for regulating and controlling the chromaticity of the liquid crystal display screen in the conference room mainly adopts set chromaticity to regulate and control, cannot comprehensively analyze and control according to the chromaticity of the display pictures of all splicing screens, and has the problem that the chromaticity of the display pictures of part of the splicing screens is different, so that the watching experience of participants in the conference room is influenced, and the intelligent regulation and control level of the liquid crystal display screen in the conference room cannot be reflected;

in order to solve the problems, a liquid crystal display screen intelligent control regulation and control method and a regulation and control system based on cloud computing are designed.

Disclosure of Invention

The invention aims to provide a liquid crystal display screen intelligent control regulation and control method and a regulation and control system based on cloud computing, wherein a conference room area is divided into sub-areas, the ambient brightness and backlight brightness of each sub-area in a conference room are detected, the average ambient brightness and average backlight brightness of the conference room area are analyzed, the comprehensive regulation and control brightness of the liquid crystal display screen in the conference room is calculated, and brightness regulation and control are carried out; meanwhile, the size of the liquid crystal display screen in the conference room and the standard size of the area in the conference room are obtained, the size ratio of the liquid crystal display screen in the conference room is analyzed, the display picture chromaticity of each splicing screen in the liquid crystal display screen in the conference room and the temperature and humidity around each splicing screen are obtained, the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room is calculated, the chromaticity regulation and control are carried out, and the problems in the background technology are solved.

The purpose of the invention can be realized by the following technical scheme:

in a first aspect, the invention provides a liquid crystal display screen intelligent control regulation and control method based on cloud computing, which comprises the following steps:

h1, conference room area division: dividing the areas in the conference room through an area dividing module, and sequentially numbering the positions of all sub-areas in the conference room according to a set sequence;

h2, area brightness detection: detecting the ambient brightness and the backlight brightness of each sub-area in the conference room through a brightness detection module respectively, and analyzing the average ambient brightness and the average backlight brightness of the areas in the conference room;

h3, display screen regulation and control brightness analysis: extracting standard display brightness set by the liquid crystal display screen in the conference room stored in the storage database through a brightness analysis module, calculating comprehensive regulation and control brightness of the liquid crystal display screen in the conference room, and regulating and controlling the brightness of the liquid crystal display screen in the conference room through a cloud regulation and control platform;

h4, obtaining the size ratio of the display screen: respectively acquiring the size of a liquid crystal display screen in a conference room and the standard size of an area in the conference room through a size acquisition module, and analyzing the size ratio of the liquid crystal display screen in the conference room;

h5, display screen chromaticity acquisition: respectively detecting red primary color values, green primary color values and blue primary color values at pixel points of spliced screens in the liquid crystal display screen in the conference room through a color detection module to obtain display picture colors of the spliced screens in the liquid crystal display screen in the conference room;

h6, display screen chromaticity analysis: respectively counting the display image chromaticity of each spliced screen in the liquid crystal display screen in the conference room through a chromaticity analysis module, and calculating the average display image chromaticity of the liquid crystal display screen in the conference room;

h7, regional temperature and humidity detection: the temperature and humidity around each spliced screen in the liquid crystal display screen in the conference room are respectively detected through a temperature and humidity detection module, and the temperature and humidity around each spliced screen in the liquid crystal display screen in the conference room are counted;

h8, analysis of display screen regulation influence coefficient: the standard appropriate size ratio of the liquid crystal display screen in the conference room and the indoor area stored in the storage database is extracted through the analysis server, the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room is calculated, and the chromaticity regulation and control of the liquid crystal display screen in the conference room is carried out through the cloud regulation and control platform.

Further, the step H2 includes the following steps:

h21, detecting the brightness of the environment around each sub-area in the conference room, counting the brightness of the environment around each sub-area in the conference room, and forming a set P (P) of the brightness of the environment around each sub-area in the conference room₁,p₂,...,p_i,...,p_n)，p_iRepresenting the ambient brightness of the ith sub-area in the conference room;

h22, and calculating average ambient brightness of the conference room area The average ambient brightness of the indoor area of the conference is represented, and n is the number of sub-areas divided in the indoor area of the conference;

h23, detecting the backlight brightness of each sub-area in the conference room, counting the backlight brightness of each sub-area in the conference room, and forming a backlight brightness set P ' (P ') of each sub-area in the conference room '₁,p′₂,...,p′_i,...,p′_n)，p_i' as the backlight brightness of the ith sub-area in the conference room;

h24, and calculating average backlight brightness of the conference room area Expressed as the average backlight brightness of the area in the conference room, and n is expressed as the number of sub-areas divided in the area in the conference room.

Further, the calculation formula of the comprehensive regulation and control brightness of the liquid crystal display screen in the conference room in the step H3 isP_{Regulation and control}Expressed as the comprehensive regulation and control brightness of the liquid crystal display screen in the conference room,alpha, beta and chi are respectively expressed as a first photosensitive influence coefficient, a second photosensitive influence coefficient and a third photosensitive influence coefficient, P_{Sign board}Indicating the standard display brightness set for the liquid crystal display in the conference room.

Further, in the step H4, the length a and the height C of the liquid crystal display screen in the conference room, and the length a ', the width D ' and the height C ' of the area in the conference room are obtained, respectively, and the maximum viewing distance D corresponding to the size of the liquid crystal display screen in the conference room is extracted_maxAnalyzing the size ratio of the liquid crystal display screen in the conference roomk is expressed as the size ratio of the liquid crystal display in the conference room.

Further, the step H5 includes dividing the liquid crystal display screen in the conference room into splicing screen regions according to the splicing screen area dividing manner in the liquid crystal display screen, and numbering the splicing screen regions sequentially from left to right and from top to bottom to form a position number set W (W) of each splicing screen region in the liquid crystal display screen in the conference room₁,w₂,...,w_j,...,w_m)，w_jAnd the position number of the jth spliced screen in the liquid crystal display screen in the conference room is shown.

Further, the step H5 further includes the following steps:

h51, detecting the red primary color values at the pixel points of the spliced screens in the liquid crystal display screen in the conference room through a chromaticity detector to form a red primary color value set W at the pixel points of the spliced screens in the liquid crystal display screen in the conference room_jR(w_jR₁,w_jR₂,...,w_jR_f,...,w_jR_v)，w_jR_fThe color value of the primary color of the red at the f-th pixel point of the j-th spliced screen in the liquid crystal display screen in the conference room is represented;

h52, and simultaneously detecting the green primary color values at the pixel points of the spliced screens in the liquid crystal display screen in the conference room to form a green primary color value set W at the pixel points of the spliced screens in the liquid crystal display screen in the conference room_jG(w_jG₁,w_jG₂,...,w_jG_f,...,w_jG_v)，w_jR_fThe primary color value is expressed as the green primary color value at the f-th pixel point of the j-th spliced screen in the liquid crystal display screen in the conference room;

h53, detecting the blue primary color values at the pixel points of the spliced screens in the liquid crystal display screen in the conference room, and forming a blue primary color value set W at the pixel points of the spliced screens in the liquid crystal display screen in the conference room_jB(w_jB₁,w_jB₂,...,w_jB_f,...,w_jB_v)，w_jR_fThe primary color value is expressed as a blue primary color value at the f-th pixel point of the j-th spliced screen in the liquid crystal display screen in the conference room;

h54, analyzing display image chromaticity of each spliced screen in liquid crystal display screen in conference roomθ_jAnd the chromaticity of the display picture of the jth spliced screen in the liquid crystal display screen in the conference room is shown.

Further, the average display frame chromaticity calculation formula of the liquid crystal display screen in the conference room is The average display frame chromaticity of the liquid crystal display screen in the conference room is represented, and m represents the number of spliced screens in the liquid crystal display screen in the conference room.

Further, the step H7 includes detecting the temperature around each splicing screen in the liquid crystal display screen in the conference room by the temperature sensor, respectively, to form a temperature set T (T) around each splicing screen in the liquid crystal display screen in the conference room₁,T₂,...,T_j,...,T_m)，T_jThe temperature around the jth spliced screen in the liquid crystal display screen in the conference room is represented; simultaneously, the humidity sensor is used for respectively detecting the periphery of each spliced screen in the liquid crystal display screen in the conference roomThe surrounding humidity constitutes a humidity set S (S) around each spliced screen in the liquid crystal display screen in the conference room₁,S₂,...,S_j,...,S_m)，S_jExpressed as the humidity around the jth of the lcd panels in the conference room.

Further, the comprehensive regulation and control chromaticity calculation formula of the liquid crystal display screen in the conference room isθ_{General assembly}Expressed as the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room, mu is expressed as the chromaticity influence coefficient corresponding to the size ratio of the liquid crystal display screen, and k_{Sign board}Expressed as the ratio of the standard suitable size of the liquid crystal display screen to the room area in the conference room, lambda_T、λ_SThe weight coefficients are respectively expressed as the influence weight coefficients of the ambient temperature and humidity of the liquid crystal display screen on the display chromaticity of the screen.

In a second aspect, the invention further provides a cloud computing-based intelligent control regulation and control system for the liquid crystal display screen, the region division module is connected with the brightness detection module, the brightness analysis module is respectively connected with the brightness detection module, the storage database and the cloud regulation and control platform, the chromaticity detection module is connected with the chromaticity analysis module, the analysis server is respectively connected with the size acquisition module, the chromaticity analysis module, the temperature and humidity detection module and the storage database, and the cloud regulation and control platform is connected with the analysis server.

Has the advantages that:

(1) according to the intelligent control regulation and control method and system for the liquid crystal display screen based on cloud computing, provided by the invention, the area in the conference room is divided into the sub-areas, the ambient brightness and backlight brightness of the sub-areas in the conference room are detected, the average ambient brightness and average backlight brightness of the area in the conference room are analyzed, the comprehensive regulation and control brightness of the liquid crystal display screen in the conference room is calculated, and brightness regulation and control are carried out, so that the intelligent regulation and control function of the liquid crystal display screen in the conference room is embodied, the problem that the display brightness of the liquid crystal display screen is not balanced with the ambient brightness is avoided, and the visual comfort level of participants in the conference room is further improved; the size of the liquid crystal display screen in the conference room and the standard size of the area in the conference room are obtained simultaneously, the size of the liquid crystal display screen in the conference room is analyzed, reliable reference data are provided for the regulation and control chromaticity of the liquid crystal display screen in the later stage, the display picture chromaticity of each splicing screen in the liquid crystal display screen in the conference room and the temperature and humidity around each splicing screen are obtained, the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room is calculated, chromaticity regulation and control are carried out, the problem that part of the splicing screens display picture chromaticities are different is solved, the watching experience of participants in the conference room is met, and the intelligent regulation and control level of the liquid crystal display screen in the conference room is further embodied.

(2) The invention analyzes and obtains the display picture chromaticity of each spliced screen in the liquid crystal display screen in the conference room by respectively detecting the red primary color chromaticity value, the green primary color chromaticity value and the blue primary color chromaticity value of each pixel point of each spliced screen in the liquid crystal display screen in the conference room, thus accurately obtaining the display picture chromaticity of each spliced screen, improving the accuracy and the reliability of analyzing the regulation and control chromaticity of the liquid crystal display screen and providing reliable reference for analyzing the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room in the later period.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the process steps of the present invention;

fig. 2 is a schematic view of a module connection structure according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a first aspect of the present invention provides a cloud-computing-based intelligent control method for a liquid crystal display, including the following steps:

h1, conference room area division: the method comprises the steps of dividing an indoor region of a conference room through a region dividing module, dividing the indoor region of the conference room into sub-regions in an equal dividing mode according to the length of the indoor region of the conference room, and sequentially numbering the positions of the sub-regions in the conference room according to a set sequence, wherein the position numbers of the sub-regions in the conference room are respectively 1,2, 1.

Specifically, the invention lays a foundation for analyzing the brightness of each sub-area in the conference room in the later period by dividing the area in the conference room into each sub-area.

H2, area brightness detection: and detecting the ambient brightness and the backlight brightness of each sub-area in the conference room through a brightness detection module respectively, and analyzing the average ambient brightness and the average backlight brightness of the areas in the conference room.

In this embodiment, the step H2 includes the following steps:

h21, detecting the brightness of the surrounding environment of each sub-area in the conference room through a brightness sensor, counting the brightness of the surrounding environment of each sub-area in the conference room, and forming a set P (P) of the surrounding environment brightness of each sub-area in the conference room₁,p₂,...,p_i,...,p_n)，p_iRepresenting the ambient brightness of the ith sub-area in the conference room;

h22, and calculating average ambient brightness of the conference room area The average ambient brightness of the indoor area of the conference is represented, and n is the number of sub-areas divided in the indoor area of the conference;

h23, detecting the backlight brightness of each sub-area in the conference room by a brightness sensor, and countingBacklight luminance of each sub-area in the conference room constitutes a set P ' (P ') of backlight luminance of each sub-area in the conference room '₁,p′₂,...,p′_i,...,p′_n)，p_i' as the backlight brightness of the ith sub-area in the conference room;

h24, and calculating average backlight brightness of the conference room area Expressed as the average backlight brightness of the area in the conference room, and n is expressed as the number of sub-areas divided in the area in the conference room.

H3, display screen regulation and control brightness analysis: the standard display brightness set by the liquid crystal display screen in the conference room stored in the storage database is extracted through the brightness analysis module, the comprehensive regulation and control brightness of the liquid crystal display screen in the conference room is calculated, and the brightness of the liquid crystal display screen in the conference room is regulated and controlled through the cloud regulation and control platform.

In this embodiment, the calculation formula of the comprehensive control brightness of the liquid crystal display screen in the conference room in the step H3 isP_{Regulation and control}Expressed as the comprehensive regulation and control brightness of the liquid crystal display screen in the conference room, alpha, beta and chi are respectively expressed as a first photosensitive influence coefficient, a second photosensitive influence coefficient and a third photosensitive influence coefficient, P_{Sign board}Indicating the standard display brightness set for the liquid crystal display in the conference room.

Specifically, the method analyzes the average ambient brightness and the average backlight brightness of the areas in the conference room by detecting the ambient brightness and the backlight brightness of each sub-area in the conference room, calculates the comprehensive regulation and control brightness of the liquid crystal display screen in the conference room, and regulates and controls the brightness, so that the intelligent regulation and control function of the liquid crystal display screen in the conference room is embodied, the problem of the imbalance between the display brightness of the liquid crystal display screen and the ambient brightness is avoided, and the visual comfort level of participants in the conference room is improved.

H4, obtaining the size ratio of the display screen: the size of the liquid crystal display screen in the conference room and the standard size of the area in the conference room are respectively obtained through the size obtaining module, and the size ratio of the liquid crystal display screen in the conference room is analyzed.

In this embodiment, in the step H4, the length a and the height C of the liquid crystal display screen in the conference room are obtained, and the length a ', the width D ' and the height C ' of the area in the conference room are obtained, so as to extract the maximum viewing distance D corresponding to the size of the liquid crystal display screen in the conference room_maxAnalyzing the size ratio of the liquid crystal display screen in the conference roomk is expressed as the size ratio of the liquid crystal display in the conference room.

Specifically, the size ratio of the liquid crystal display screen in the conference room is analyzed by acquiring the size of the liquid crystal display screen in the conference room and the standard size of the area in the conference room, and reliable reference data is provided for calculating the regulation and control chromaticity of the liquid crystal display screen at the later stage.

H5, display screen chromaticity acquisition: the chromaticity detection module is used for respectively detecting the chromaticity values of the red primary color, the green primary color and the blue primary color at the pixel points of the spliced screens in the liquid crystal display screen in the conference room, and obtaining the chromaticity of the display picture of the spliced screens in the liquid crystal display screen in the conference room.

In this embodiment, the step H5 includes dividing the liquid crystal display screen in the conference room into splicing screen regions according to the splicing screen area dividing manner in the liquid crystal display screen, and numbering the splicing screen regions sequentially from left to right and from top to bottom to form a position number set W (W) of the splicing screen regions in the liquid crystal display screen in the conference room₁,w₂,...,w_j,...,w_m)，w_jAnd the position number of the jth spliced screen in the liquid crystal display screen in the conference room is shown.

In this embodiment, the step H5 further includes the following steps:

h51, detecting each spliced screen of each liquid crystal display screen in conference room through chromaticity detectorThe red primary color chroma values at the pixel points form a red primary color chroma value set W at each pixel point of each spliced screen in the liquid crystal display screen in the conference room_jR(w_jR₁,w_jR₂,...,w_jR_f,...,w_jR_v)，w_jR_fThe color value of the primary color of the red at the f-th pixel point of the j-th spliced screen in the liquid crystal display screen in the conference room is represented;

h52, and simultaneously detecting the green primary color values at the pixel points of the spliced screens in the liquid crystal display screen in the conference room to form a green primary color value set W at the pixel points of the spliced screens in the liquid crystal display screen in the conference room_jG(w_jG₁,w_jG₂,...,w_jG_f,...,w_jG_v)，w_jR_fThe primary color value is expressed as the green primary color value at the f-th pixel point of the j-th spliced screen in the liquid crystal display screen in the conference room;

h53, detecting the blue primary color values at the pixel points of the spliced screens in the liquid crystal display screen in the conference room, and forming a blue primary color value set W at the pixel points of the spliced screens in the liquid crystal display screen in the conference room_jB(w_jB₁,w_jB₂,...,w_jB_f,...,w_jB_v)，w_jR_fThe primary color value is expressed as a blue primary color value at the f-th pixel point of the j-th spliced screen in the liquid crystal display screen in the conference room;

h54, analyzing display image chromaticity of each spliced screen in liquid crystal display screen in conference roomθ_jAnd the chromaticity of the display picture of the jth spliced screen in the liquid crystal display screen in the conference room is shown.

Specifically, the invention analyzes and obtains the display screen chromaticity of each spliced screen in the liquid crystal display screen in the conference room by respectively detecting the red primary color chromaticity value, the green primary color chromaticity value and the blue primary color chromaticity value of each pixel point of each spliced screen in the liquid crystal display screen in the conference room, thus accurately obtaining the display screen chromaticity of each spliced screen, improving the accuracy and the reliability of analyzing the regulation and control chromaticity of the liquid crystal display screen and providing a reliable reference for analyzing the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room in the later period.

H6, display screen chromaticity analysis: and respectively counting the display image chromaticity of each spliced screen in the liquid crystal display screen in the conference room through a chromaticity analysis module, and calculating the average display image chromaticity of the liquid crystal display screen in the conference room.

In this embodiment, the calculation formula of the average display frame chromaticity of the liquid crystal display screen in the conference room is The average display frame chromaticity of the liquid crystal display screen in the conference room is represented, and m represents the number of spliced screens in the liquid crystal display screen in the conference room.

H7, regional temperature and humidity detection: the temperature and humidity around each splicing screen in the liquid crystal display screen in the conference room are detected through the temperature and humidity detection module respectively, and the temperature and humidity around each splicing screen in the liquid crystal display screen in the conference room are counted.

In this embodiment, the step H7 includes detecting the temperature around each of the splicing screens in the liquid crystal display panel in the conference room by the temperature sensors, respectively, to form a set T (T) of temperatures around each of the splicing screens in the liquid crystal display panel in the conference room₁,T₂,...,T_j,...,T_m)，T_jThe temperature around the jth spliced screen in the liquid crystal display screen in the conference room is represented; meanwhile, the humidity around each spliced screen in the liquid crystal display screen in the conference room is respectively detected through a humidity sensor to form a humidity set S (S) around each spliced screen in the liquid crystal display screen in the conference room₁,S₂,...,S_j,...,S_m)，S_jExpressed as the humidity around the jth of the lcd panels in the conference room.

H8, analysis of display screen regulation influence coefficient: the standard appropriate size ratio of the liquid crystal display screen in the conference room and the indoor area stored in the storage database is extracted through the analysis server, the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room is calculated, and the chromaticity regulation and control of the liquid crystal display screen in the conference room is carried out through the cloud regulation and control platform.

In this embodiment, the calculation formula of the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room isθ_{General assembly}Expressed as the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room, mu is expressed as the chromaticity influence coefficient corresponding to the size ratio of the liquid crystal display screen, and k_{Sign board}Expressed as the ratio of the standard suitable size of the liquid crystal display screen to the room area in the conference room, lambda_T、λ_SThe weight coefficients are respectively expressed as the influence weight coefficients of the ambient temperature and humidity of the liquid crystal display screen on the display chromaticity of the screen.

Specifically, the comprehensive regulation and control chromaticity of the liquid crystal display screen in the conference room is calculated by obtaining the display screen chromaticity of each spliced screen in the liquid crystal display screen in the conference room and the temperature and humidity around each spliced screen, and chromaticity regulation and control are performed, so that the problem that part of the spliced screens display screen chromaticities are different is solved, the watching experience of participants in the conference room is met, and the intelligent regulation and control level of the liquid crystal display screen in the conference room is reflected.

In a second aspect, the invention further provides a cloud computing-based intelligent control regulation and control system for the liquid crystal display screen, the region division module is connected with the brightness detection module, the brightness analysis module is respectively connected with the brightness detection module, the storage database and the cloud regulation and control platform, the chromaticity detection module is connected with the chromaticity analysis module, the analysis server is respectively connected with the size acquisition module, the chromaticity analysis module, the temperature and humidity detection module and the storage database, and the cloud regulation and control platform is connected with the analysis server.

The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.