Multimedia exhibition hall light control system

Abstract

The invention discloses a multimedia exhibition hall light control system, which comprises a plurality of groups of light control units used for independently controlling light of each area in an exhibition hall; the central control unit is in communication connection with the plurality of light control units; the sensor network is used for detecting environmental parameters in the exhibition hall and interactive behaviors of audiences; the sensor network integrated data processing unit is used for receiving and processing data from a sensor network and then transmitting the processed data to the central control unit; and the weighted calculation module is used for carrying out weighted calculation on the control signals of different light control units according to the processed data so as to realize dynamic adjustment of the light effect. By integrating the sensor network, the central control unit, the light control unit and the weighted calculation module, the intelligent control of the light of the exhibition hall is realized, the defects of the traditional light system are overcome by the intelligent means, and the operation efficiency of the exhibition hall and the satisfaction degree of audiences are improved.

Description

Technical Field

[0001] The invention belongs to the field of biotechnology, and more specifically, particularly relates to a multimedia exhibition hall lighting control system. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, multimedia exhibition halls, as a new type of information display platform, are becoming more and more popular among the public. Multimedia exhibition halls can not only provide a rich visual experience, but also enhance the audience's sense of participation and immersion through interactive methods. However, traditional exhibition hall lighting control systems often have the following problems:

[0003] Lack of flexibility: Traditional lighting systems are mostly fixed modes, which are difficult to flexibly adjust according to the needs of different areas in the exhibition hall;

[0004] Insufficient interactivity: There is little interaction between the audience and the exhibition hall, and the lighting effects cannot be dynamically adjusted according to the audience's behavior and needs;

[0005] Energy waste: Due to the lack of intelligent control, the lighting system often maintains high brightness when it is not necessary, resulting in energy waste;

[0006] Difficult maintenance: Traditional lighting systems are complex, have high maintenance costs, and are not easy to monitor and manage remotely;

[0007] Poor user experience: Fixed lighting modes cannot meet the needs of different audiences, affecting the overall exhibition experience;

[0008] Therefore, we propose a multimedia exhibition hall lighting control system, which effectively addresses the above-mentioned problems, solves the shortcomings of traditional lighting systems through intelligent means, and improves the exhibition hall's operating efficiency and audience satisfaction. Summary of the invention

[0009] The purpose of the present invention is to solve the shortcomings of the prior art and propose a multimedia exhibition hall lighting control system, which realizes intelligent control of the exhibition hall lighting by integrating a sensor network, a central control unit, a lighting control unit and a weighted calculation module. Intelligent means solve the shortcomings of traditional lighting systems and improve the operating efficiency of the exhibition hall and the satisfaction of the audience.

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] A multimedia exhibition hall lighting control system, comprising:

[0012] Several groups of lighting control units are used to independently control the lighting in various areas of the exhibition hall;

[0013] A central control unit, which is in communication with the plurality of light control units, and is used to receive control instructions input by a user and send corresponding control signals;

[0014] A sensor network, including multiple environmental sensors and interactive sensors, is used to detect environmental parameters in the exhibition hall and the interactive behavior of visitors;

[0015] The sensor network integrates a data processing unit, which is in communication with the central control unit and is used to receive and process data from the sensor network, and then transmit the processed data to the central control unit;

[0016] A weighted calculation module, which is in communication with the data processing unit and is used to perform weighted calculation on control signals of different lighting control units according to the processed data, so as to achieve dynamic adjustment of lighting effects;

[0017] Among them, the weighted calculation module dynamically adjusts the control signal weight of each lighting control unit based on a preset weight distribution strategy and according to the real-time environmental parameters in the exhibition hall and the audience interaction behavior data to optimize the lighting effect and audience experience.

[0018] Preferably, each group of the light control units is connected to a light driver connected to an actual lamp, and the light driver receives a signal from the light control unit and drives the lamp.

[0019] Preferably, the central control unit is responsible for the coordination and management of the overall system, and at the same time, performs preliminary brightness adjustment and color temperature adjustment calculations and outputs, specifically:

[0020] Brightness adjustment, automatically adjust the brightness of artificial lighting according to the intensity of natural light, the expression is:

[0021] I 人工 =I 目标 -I 自然 ;

[0022] In the formula, I 人工 is the intensity of artificial lighting, I 目标 is the total target illumination intensity, I 自然 is the natural light intensity;

[0023] Color temperature adjustment: adjust the color temperature according to time and activity type. The expression is:

[0024] CCT=f(t,a);

[0025] Among them, CCT is the color temperature, t is the time, including the period of sufficient light and the period of insufficient light, and a is the activity type. Different types of activities require different color temperatures, including lectures, movies, and exhibitions. According to the time t and the activity type a, the above expression is updated as follows:

[0026]

[0027] In the formula, the period of sufficient sunlight is t<18:

[0028] Lectures: A higher color temperature of 6500K is required to ensure the audience's concentration;

[0029] Movie watching: moderate color temperature of 5500K provides a comfortable viewing experience;

[0030] Exhibition: A slightly lower color temperature of 5000K to highlight the colors of the exhibits;

[0031] Insufficient light period t≥18:

[0032] Lectures: lower the color temperature to 3500K to reduce stimulation to the audience’s eyes;

[0033] For movie watching, the color temperature is further reduced to 3000K to ensure a perfect viewing environment;

[0034] For exhibitions, the lowest color temperature of 2700K creates a soft atmosphere while protecting the audience's eyes.

[0035] Preferably, the sensor network comprises:

[0036] Environmental sensors, including temperature, humidity, and light intensity sensors, are used to monitor the environmental parameters of the exhibition hall;

[0037] Interactive sensors, including infrared sensors, pressure sensors, and sound sensors, are used to detect the audience's movement, touch, and sound interactive behaviors;

[0038] The sensor network workflow is as follows:

[0039] 1) Environmental sensors and interactive sensors collect real-time environmental parameters in the exhibition hall and audience interactive behavior data;

[0040] 2) The collected data is sent to the central control unit through the wireless communication module, and the central control unit processes and analyzes the received data to generate corresponding control signals or feedback information;

[0041] 3) Based on the processing results, the central control unit sends a control signal to the lighting control unit to achieve automatic adjustment of the environment; at the same time, it provides prompt sound feedback information to the user.

[0042] Preferably, the weighted calculation module calculates the weight ω of each lighting control unit according to the built-in weight distribution strategy. i , including environmental parameters, audience interaction behavior, age group and gender ratio of people entering the area; the expression is:

[0043] ω i =f(P, I, A, G);

[0044] Where P is the environmental parameter vector, I is the audience interaction behavior data vector, A is the age distribution of people entering the area, G is the gender ratio of people entering the area, and f is a calculation function used to calculate the weight according to the parameters;

[0045] The linear combination is used to calculate the weights, and the expression is:

[0046] ω i =α1×P i +α2×I i +α3×A i +α4×G i ;

[0047] Where α1 is the weight coefficient of the environmental parameter vector, α2 is the weight coefficient of the audience interaction behavior data vector, α3 is the weight coefficient of the age distribution of people entering the area, α4 is the weight coefficient of the gender ratio of people entering the area, and P i ,I i , A i and G i They respectively represent the environmental parameter vector data of the lighting area controlled by the i-th lighting control unit, the audience interaction behavior data vector data, the age distribution data of people entering the area, and the gender ratio data of people entering the area.

[0048] Preferably, the final control signal C of the weighted calculation module final It is calculated by weighted summation, and the calculation formula is:

[0049]

[0050] In the formula, C i is the original control signal of the i-th lighting control unit, ω i is the weight of the i-th light control unit.

[0051] Preferably, the calculation process of weight coefficients α1, α2, α3 and α4 is as follows:

[0052] 1) Construct a judgment matrix to represent the relative importance of various factors;

[0053] 2) Normalize each column of the judgment matrix, that is, divide each element by the sum of the column;

[0054] 3) Sum the normalized judgment matrix row by row to obtain the weight vector of each factor;

[0055] 4) Perform a consistency check to ensure the consistency of the judgment matrix.

[0056] Preferably, each column of the judgment matrix is ​​normalized, and the expression is:

[0057]

[0058] In the formula, α ij is the element in the original judgment matrix, α' ij is the normalized element, n is the number of factors;

[0059] The normalized judgment matrix is ​​summed row by row, and the calculation formula is:

[0060]

[0061] In the formula, X represents the weight factor, which is one of P, I, A, and G, and α' Xj is the element of the jth column of the weight factor in the normalized judgment matrix, and n is the number of factors.

[0062] Preferably, the consistency check is performed by calculating the consistency index CI and the random consistency index RI, and then calculating the consistency ratio CR, and the calculation formula is:

[0063]

[0064] In the formula, λ max is the maximum eigenvalue of the judgment matrix, n is the number of factors, RI is the random consistency index, and if CR < 0.1, the judgment matrix has satisfactory consistency.

[0065] Technical effects and advantages of the present invention: Compared with the traditional technology, the multimedia exhibition hall lighting control system provided by the present invention has the following advantages:

[0066] The system automatically adjusts the brightness of artificial lighting according to the intensity of natural light, avoiding unnecessary energy waste; for example, when there is sufficient natural light, the system will reduce the intensity of artificial lighting; and in low-light periods or when there is insufficient light, the system will increase the lighting intensity to ensure that the light in the exhibition hall is always maintained at a comfortable level; this intelligent adjustment not only saves electricity, but also extends the service life of the lamps;

[0067] The system can collect and analyze a large amount of visitor behavior data to help exhibition hall managers understand the visitors' interests and preferences; by analyzing the visitors' stay time and movement trajectories in different exhibition areas, managers can optimize the exhibit layout and display content to improve visitor satisfaction and participation; in addition, this data can also be used for market research and advertising, bringing more business opportunities to the exhibition hall. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1This is a diagram of the multimedia exhibition hall lighting control system of the present invention. DETAILED DESCRIPTION

[0069] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0070] The present invention provides Figure 1 The multimedia exhibition hall lighting control system shown in the figure realizes intelligent control of the exhibition hall lighting by integrating sensor networks, central control units, lighting control units and weighted calculation modules. Intelligent means can solve the shortcomings of traditional lighting systems and improve the operating efficiency of the exhibition hall and the satisfaction of the audience.

[0071] Specifically, the multimedia exhibition hall lighting control system includes:

[0072] Several groups of lighting control units are used to independently control the lighting in various areas of the exhibition hall; each group of the lighting control units is connected to a lighting driver connected to the actual lighting fixture, and the lighting driver receives a signal from the lighting control unit and drives the lighting fixture;

[0073] A central control unit, which is in communication with the plurality of light control units, and is used to receive control instructions input by a user and send corresponding control signals;

[0074] It should be noted that the central control unit is responsible for the coordination and management of the entire system, and at the same time, performs preliminary brightness adjustment and color temperature adjustment calculations and outputs, specifically:

[0075] Brightness adjustment, automatically adjust the brightness of artificial lighting according to the intensity of natural light, the expression is:

[0076] I 人工 =I 目标 -I 自然 ;

[0077] In the formula, I 人工 is the intensity of artificial lighting, I 目标 is the total target illumination intensity, I 自然 is the natural light intensity;

[0078] Color temperature adjustment: adjust the color temperature according to time and activity type. The expression is:

[0079] CCT=f(t,a);

[0080] Among them, CCT is the color temperature, t is the time, including the period of sufficient light and the period of insufficient light, and a is the activity type. Different types of activities require different color temperatures, including lectures, movies, and exhibitions. According to the time t and the activity type a, the above expression is updated as follows:

[0081]

[0082] In the formula, the period of sufficient sunlight is t<18:

[0083] Lectures: A higher color temperature of 6500K is required to ensure the audience's concentration;

[0084] Movie watching: moderate color temperature of 5500K provides a comfortable viewing experience;

[0085] Exhibition: A slightly lower color temperature of 5000K to highlight the colors of the exhibits;

[0086] Insufficient light period t≥18:

[0087] Lectures: lower the color temperature to 3500K to reduce stimulation to the audience’s eyes;

[0088] For movie watching, the color temperature is further reduced to 3000K to ensure a perfect viewing environment;

[0089] For exhibitions, the lowest color temperature of 2700K creates a soft atmosphere while protecting the audience's eyes.

[0090] A sensor network, including multiple environmental sensors and interactive sensors, is used to detect environmental parameters in the exhibition hall and the interactive behavior of visitors;

[0091] The sensor network integrates a data processing unit, which is in communication with the central control unit and is used to receive and process data from the sensor network, and then transmit the processed data to the central control unit; specifically, the sensor network includes:

[0092] Environmental sensors, including temperature, humidity, and light intensity sensors, are used to monitor the environmental parameters of the exhibition hall;

[0093] Interactive sensors, including infrared sensors, pressure sensors, and sound sensors, are used to detect the audience's movement, touch, and sound interactive behaviors;

[0094] The sensor network workflow is as follows:

[0095] 1) Environmental sensors and interactive sensors collect real-time environmental parameters in the exhibition hall and audience interactive behavior data;

[0096] 2) The collected data is sent to the central control unit through the wireless communication module, and the central control unit processes and analyzes the received data to generate corresponding control signals or feedback information;

[0097] 3) Based on the processing results, the central control unit sends a control signal to the lighting control unit to achieve automatic adjustment of the environment; at the same time, it provides prompt sound feedback information to the user.

[0098] A weighted calculation module, which is in communication with the data processing unit and is used to perform weighted calculation on control signals of different lighting control units according to the processed data, so as to achieve dynamic adjustment of lighting effects;

[0099] The weighted calculation module dynamically adjusts the control signal weights of each lighting control unit based on a preset weight distribution strategy and the real-time environmental parameters in the exhibition hall and the audience interaction behavior data to optimize the lighting effect and audience experience;

[0100] Furthermore, the weighted calculation module calculates the weight ω of each lighting control unit according to the built-in weight distribution strategy. i , including environmental parameters, audience interaction behavior, age group and gender ratio of people entering the area; the expression is:

[0101] ω i =f(P, I, A, G);

[0102] Where P is the environmental parameter vector, I is the audience interaction behavior data vector, A is the age distribution of people entering the area, G is the gender ratio of people entering the area, and f is a calculation function used to calculate the weight according to the parameters;

[0103] The linear combination is used to calculate the weights, and the expression is:

[0104] ω i =α1×P i +α2×I i +α3×A i +α4×G i ;

[0105] Where α1 is the weight coefficient of the environmental parameter vector, α2 is the weight coefficient of the audience interaction behavior data vector, α3 is the weight coefficient of the age distribution of people entering the area, α4 is the weight coefficient of the gender ratio of people entering the area, and P i ,I i , A i and G i They respectively represent the environmental parameter vector data of the lighting area controlled by the i-th lighting control unit, the audience interaction behavior data vector data, the age distribution data of people entering the area, and the gender ratio data of people entering the area.

[0106] It should be noted that the calculation process of weight coefficients α1, α2, α3 and α4 is as follows:

[0107] 1) Construct a judgment matrix to represent the relative importance of various factors;

[0108] 2) Each column of the judgment matrix is ​​normalized, that is, each element is divided by the sum of the column in which it is located; the normalization process for each column of the judgment matrix is ​​expressed as:

[0109]

[0110] In the formula, α ij is the element in the original judgment matrix, α' ij is the normalized element, n is the number of factors;

[0111] 3) The normalized judgment matrix is ​​summed row by row to obtain the weight vector of each factor; the normalized judgment matrix is ​​summed row by row, and the calculation formula is:

[0112]

[0113] In the formula, X represents the weight factor, which is one of P, I, A, and G, and α' Xj is the element of the jth column of the weight factor in the normalized judgment matrix, and n is the number of factors;

[0114] 4) Perform a consistency check to ensure the consistency of the judgment matrix; the consistency check is performed by calculating the consistency index CI and the random consistency index RI, and then calculating the consistency ratio CR, the calculation formula is:

[0115]

[0116] In the formula, λ max is the maximum eigenvalue of the judgment matrix, n is the number of factors, RI is the random consistency index, and if CR < 0.1, the judgment matrix has satisfactory consistency.

[0117] As mentioned above, age and gender data are collected during the registration process through the exhibition hall ticket purchase or reservation system;

[0118] Sex ratio is expressed as males to females;

[0119] Age classification includes: Classification methods include:

[0120] Children, 0-12 years old;

[0121] Youth, aged 13-18 years old;

[0122] Youth, 19-35 years old;

[0123] Middle age, 36-60 years old;

[0124] Elderly, over 60 years old;

[0125] As mentioned above, different age groups and gender ratios will affect the weight allocation strategy of the weighted calculation module;

[0126] If the audience of a certain exhibition area is mainly young people, then the system may increase the weight of the lighting control of this exhibition area to meet the needs of young people; the specific calculation method can refer to the following steps:

[0127] Construct a judgment matrix: Construct a judgment matrix based on the relative importance of various factors, including environmental parameters, audience interaction behavior, age group, and gender ratio.

[0128] Normalization: Normalize each column of the judgment matrix, that is, divide each element by the sum of the column.

[0129] Sum up to get the weight vector: Sum the normalized judgment matrix row by row to get the weight vector of each factor.

[0130] Consistency check: By calculating the consistency index CI and the random consistency index RI, and then calculating the consistency ratio CR, the consistency of the judgment matrix is ​​ensured.

[0131] For example, there is the following judgment matrix:

[0132] factor P I A G P 1 3 5 7 I 1 / 3 1 3 5 A 1 / 5 1 / 3 1 3 G 1 / 7 1 / 5 1 / 3 1

[0133] Based on the above, calculate the sum of the first column and then normalize it:

[0134]

[0135] Similarly, calculate the normalized values ​​of other columns and finally get the normalized judgment matrix:

[0136]

[0137]

[0138] According to the above results, the normalized judgment matrix is ​​summed row by row to obtain the weight vector of each factor:

[0139]

[0140] Then the consistency check is performed. First, the maximum eigenvalue λ of the judgment matrix is ​​calculated. max :

[0141] Among them, (Aω) i It is the result of multiplying the weight vector ω and the original judgment matrix A. The calculation result is:

[0142]

[0143] Calculate the consistency index CI and random consistency index RI:

[0144]

[0145] Among them, taking n = 4, RI ≈ 0.9, we get:

[0146]

[0147] Because CR < 0.1, the judgment matrix has satisfactory consistency.

[0148] The final control signal C of the weighted calculation module final It is calculated by weighted summation, and the calculation formula is:

[0149]

[0150] In the formula, C i is the original control signal of the i-th lighting control unit, ω i is the weight of the i-th light control unit

[0151] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multimedia exhibition hall lighting control system, characterized in that: include: Several groups of lighting control units are used to independently control the lighting in various areas of the exhibition hall; A central control unit, which is in communication with the plurality of light control units, and is used to receive control instructions input by a user and send corresponding control signals; A sensor network, including multiple environmental sensors and interactive sensors, is used to detect environmental parameters in the exhibition hall and the interactive behavior of visitors; The sensor network integrates a data processing unit, which is in communication with the central control unit and is used to receive and process data from the sensor network, and then transmit the processed data to the central control unit; A weighted calculation module, which is in communication with the data processing unit and is used to perform weighted calculation on control signals of different lighting control units according to the processed data, so as to achieve dynamic adjustment of lighting effects; Among them, the weighted calculation module dynamically adjusts the control signal weight of each lighting control unit based on a preset weight distribution strategy and according to the real-time environmental parameters in the exhibition hall and the audience interaction behavior data to optimize the lighting effect and audience experience.

2. A multimedia exhibition hall lighting control system according to claim 1, characterized in that: Each group of the light control units is connected to a light driver connected to an actual lamp, and the light driver receives a signal from the light control unit and drives the lamp.

3. A multimedia exhibition hall lighting control system according to claim 1, characterized in that: The central control unit is responsible for the coordination and management of the entire system. At the same time, it performs preliminary brightness adjustment and color temperature adjustment calculations and outputs them, specifically: Brightness adjustment, automatically adjust the brightness of artificial lighting according to the intensity of natural light, the expression is: I 人工 =I 目标 -I 自然 ; In the formula, I 人工 is the intensity of artificial lighting, I 目标 is the total target illumination intensity, I 自然 is the natural light intensity; Color temperature adjustment: adjust the color temperature according to time and activity type. The expression is: CCT=f(t,a); Among them, CCT is the color temperature, t is the time, including the period of sufficient light and the period of insufficient light, and a is the activity type. Different types of activities require different color temperatures, including lectures, movies, and exhibitions. According to the time t and the activity type a, the above expression is updated as follows: In the formula, the period of sufficient sunlight is t<18: Lectures: A higher color temperature of 6500K is required to ensure the audience's concentration; Movie watching: moderate color temperature of 5500K provides a comfortable viewing experience; Exhibition: A slightly lower color temperature of 5000K to highlight the colors of the exhibits; Insufficient light period t≥18: Lectures: lower the color temperature to 3500K to reduce stimulation to the audience’s eyes; For movie watching, the color temperature is further reduced to 3000K to ensure a perfect viewing environment; For exhibitions, the lowest color temperature of 2700K creates a soft atmosphere while protecting the audience's eyes.

4. A multimedia exhibition hall lighting control system according to claim 1, characterized in that: The sensor network comprises: Environmental sensors, including temperature, humidity, and light intensity sensors, are used to monitor the environmental parameters of the exhibition hall; Interactive sensors, including infrared sensors, pressure sensors, and sound sensors, are used to detect the audience's movement, touch, and sound interactive behaviors; The sensor network workflow is as follows: 1) Environmental sensors and interactive sensors collect real-time environmental parameters in the exhibition hall and audience interactive behavior data; 2) The collected data is sent to the central control unit through the wireless communication module, and the central control unit processes and analyzes the received data to generate corresponding control signals or feedback information; 3) Based on the processing results, the central control unit sends a control signal to the lighting control unit to achieve automatic adjustment of the environment; at the same time, it provides prompt sound feedback information to the user.

5. A multimedia exhibition hall lighting control system according to claim 1, characterized in that: The weighted calculation module calculates the weight ω of each lighting control unit according to the built-in weight distribution strategy. i , including environmental parameters, audience interaction behavior, age group and gender ratio of people entering the area; the expression is: ω i =f(P,I,A,G); Where P is the environmental parameter vector, I is the audience interaction behavior data vector, A is the age distribution of people entering the area, G is the gender ratio of people entering the area, and f is a calculation function used to calculate the weight according to the parameters; The linear combination is used to calculate the weights, and the expression is: oh i =α1×P i +α2×I i +α3×A i +α4×G i ; Where α1 is the weight coefficient of the environmental parameter vector, α2 is the weight coefficient of the audience interaction behavior data vector, α3 is the weight coefficient of the age distribution of people entering the area, α4 is the weight coefficient of the gender ratio of people entering the area, and P i ,I i , A i and G i They respectively represent the environmental parameter vector data of the lighting area controlled by the i-th lighting control unit, the audience interaction behavior data vector data, the age distribution data of people entering the area, and the gender ratio data of people entering the area.

6. A multimedia exhibition hall lighting control system according to claim 5, characterized in that: The final control signal C of the weighted calculation module final It is calculated by weighted summation, and the calculation formula is: In the formula, C i is the original control signal of the i-th lighting control unit, ω i is the weight of the i-th light control unit.

7. A multimedia exhibition hall lighting control system according to claim 6, characterized in that: The calculation process of weight coefficients α1, α2, α3 and α4 is as follows: 1) Construct a judgment matrix to represent the relative importance of various factors; 2) Normalize each column of the judgment matrix, that is, divide each element by the sum of the column; 3) Sum the normalized judgment matrix row by row to obtain the weight vector of each factor; 4) Perform a consistency check to ensure the consistency of the judgment matrix.

8. A multimedia exhibition hall lighting control system according to claim 7, characterized in that: The normalization process is performed on each column of the judgment matrix, and the expression is: In the formula, α ij is the element in the original judgment matrix, α' ij is the normalized element, n is the number of factors; The normalized judgment matrix is ​​summed row by row, and the calculation formula is: In the formula, X represents the weight factor, which is one of P, I, A, and G, and α' Xj is the element of the jth column of the weight factor in the normalized judgment matrix, and n is the number of factors.

9. A multimedia exhibition hall lighting control system according to claim 8, characterized in that: The consistency test is performed by calculating the consistency index CI and the random consistency index RI, and then calculating the consistency ratio CR, and the calculation formula is: In the formula, λ max is the maximum eigenvalue of the judgment matrix, n is the number of factors, RI is the random consistency index, and if CR < 0.1, the judgment matrix has satisfactory consistency.

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