A LED lamp control system and method based on environmental data analysis

Abstract

The present invention relates to the technical field of LED lamp control, and discloses an LED lamp control system and method based on environmental data analysis. The present invention divides a monitoring area into n sub-monitoring areas and monitors the environmental parameters of the n sub-monitoring areas in sequence; then calculates the brightness uniformity coefficients of the n sub-monitoring areas according to the environmental brightness of the n sub-monitoring areas, and then compares the environmental brightness uniformity coefficients of the n sub-monitoring areas with the environmental brightness uniformity coefficient threshold intervals set by the system in sequence. If the environmental brightness uniformity coefficient of any sub-monitoring area does not belong to the interval, it means that the environmental brightness of the monitoring area is unbalanced, and it is necessary to adjust the working brightness of the LED lamp of the sub-monitoring area, and in combination with the environmental temperature and environmental humidity of each sub-monitoring area, the working brightness of the LED of each sub-monitoring area is adjusted to ensure that the environmental brightness of the monitoring area is balanced and improve the lighting effect of the LED lamp.

Description

Technical Field

[0001] The present invention relates to the technical field of LED lamp control, and in particular to an LED lamp control system and method based on environmental data analysis. Background Art

[0002] When lighting is needed in a large space, multiple LEDs need to work together, and each LED lamp is responsible for one sub-area to ensure the brightness of the entire place is balanced. However, the environmental parameters of each sub-area are inconsistent, resulting in inconsistent environmental brightness of the corresponding sub-area under the same working brightness of each LED lamp, thereby causing uneven environmental brightness of the entire large place and affecting the lighting effect. Therefore, the present invention proposes an LED lamp control system and method based on environmental data analysis. Summary of the invention

[0003] The purpose of the present invention is to provide an LED lamp control system and method based on environmental data analysis to solve the above technical problems.

[0004] An LED lamp control system based on environmental data analysis, comprising: an environmental parameter monitoring module, an LED lamp parameter monitoring module, a data processing module, a data analysis module and a control module;

[0005] The environmental parameter monitoring module is used to monitor the brightness, temperature and humidity of the LED lamp working area in real time;

[0006] The LED lamp parameter monitoring module is used to monitor the working brightness of the LED lamp in real time;

[0007] The data processing module is used to process the real-time data acquired by the environmental parameter monitoring module and the LED lamp parameter monitoring module, and store them in the system database;

[0008] The data analysis module is used to analyze the environmental parameter monitoring module and the LED lamp parameter monitoring module, and formulate a working brightness adjustment strategy of the LED lamp according to the analysis results;

[0009] The control module is used to adjust the illumination intensity of the LED light according to the working brightness adjustment strategy of the LED light.

[0010] As a further description of the solution of the present invention, the working process of the environmental parameter monitoring module includes:

[0011] According to the area that each LED lamp is responsible for lighting, the monitoring area is divided into n sub-monitoring areas, and each sub-monitoring area is numbered in the following order: 1, 2, ..., n;

[0012] The ambient brightness of each area is monitored by a brightness sensor, the ambient temperature of each area is monitored by a temperature sensor, and the ambient humidity of each area is monitored by a humidity sensor;

[0013] The LED light parameter monitoring module is used to obtain the real-time working brightness of the LED lights corresponding to each area.

[0014] As a further description of the solution of the present invention, the working process of the data analysis module includes:

[0015] Obtain the time-varying data of the ambient brightness of the ith monitoring sub-area, and generate the time-varying function of the ambient brightness of the ith monitoring sub-area according to the time-varying data of the ambient brightness of the ith monitoring sub-area , where i belongs to [1,n];

[0016] Construct a mathematical calculation model for brightness uniformity coefficient, the expression is:

[0017] ;

[0018] In the formula, is the ambient brightness uniformity coefficient of the ith sub-monitoring area, is the intermediate parameter, is the current ambient brightness of the ith sub-monitoring area, and are weight coefficients respectively;

[0019] Constructing intermediate parameters The mathematical calculation model of is expressed as:

[0020] ;

[0021] In the formula, To monitor the initial time, To monitor the current moment;

[0022] According to the mathematical calculation model of brightness uniformity coefficient, the brightness uniformity coefficients of n sub-monitoring areas are calculated in turn, and the working brightness adjustment strategy of LED lamp is formulated according to the brightness uniformity coefficients of n sub-monitoring areas.

[0023] As a further description of the solution of the present invention, the working process of formulating the LED lamp working brightness adjustment strategy includes:

[0024] The uniformity coefficient of the ambient brightness of the ith sub-monitoring area The ambient brightness uniformity coefficient threshold range set by the system Compare;

[0025] When the ambient brightness uniformity coefficient of the i-th sub-monitoring area Belong to the interval When , it means that the ambient brightness of the monitoring area is balanced, and there is no need to adjust the working brightness of the LED lights in the i-th sub-monitoring area;

[0026] When the ambient brightness uniformity coefficient of the i-th sub-monitoring area Not in range When , it indicates that the ambient brightness of the monitoring area is uneven, and the working brightness of the LED lights in the i-th sub-monitoring area needs to be adjusted;

[0027] Compare the ambient brightness uniformity coefficients of the n sub-monitoring areas with the ambient brightness uniformity coefficient threshold interval set by the system. By comparison, if the ambient brightness uniformity coefficient of any sub-monitoring area does not belong to the interval , it indicates that the ambient brightness of the monitoring area is uneven and the working brightness of the LED lights in the sub-monitoring area needs to be adjusted.

[0028] As a further description of the solution of the present invention, the method for adjusting the working brightness of the LED lamp in the i-th sub-monitoring area includes:

[0029] when , it means that the working brightness of the LED lights in the ith sub-area is dim, and the working brightness of the LED lights in the ith sub-area needs to be increased. The current working brightness of the LED lights in the ith sub-monitoring area is obtained. , the ambient temperature of the ith sub-monitoring area , the ambient humidity of the ith sub-monitoring area ;

[0030] The adjusted working brightness of the LED lights in the ith sub-monitoring area is:

[0031] ;

[0032] In the formula, is the working brightness of the LED lights in the ith sub-monitoring area after adjustment, is the conversion factor, The standard ambient temperature set for the system, The standard ambient humidity set for the system, is the weight coefficient corresponding to the ambient temperature, is the weight coefficient corresponding to the ambient humidity, It is the reference coefficient of the ratio of ambient temperature and ambient humidity.

[0033] As a further description of the solution of the present invention, the method for adjusting the working brightness of the LED lamp in the i-th sub-monitoring area also includes:

[0034] when , it means that the working brightness of the LED lights in the ith sub-area is brighter, and it is necessary to reduce the working brightness of the LED lights in the ith sub-area, and obtain the current working brightness of the LED lights in the ith sub-monitoring area. , the ambient temperature of the ith sub-monitoring area , the ambient humidity of the ith sub-monitoring area ;

[0035] The adjusted working brightness of the LED lights in the ith sub-monitoring area is:

[0036] .

[0037] A method for controlling an LED lamp based on environmental data analysis, the method comprising the following steps:

[0038] Step S1, dividing the monitoring area into n sub-monitoring areas, and numbering each sub-monitoring area, the numbers are: 1, 2, ..., n;

[0039] Step S2, monitoring the environmental parameters of n sub-monitoring areas in sequence;

[0040] Step S3, calculating the brightness uniformity coefficient of the n sub-monitoring areas according to the ambient brightness of the n sub-monitoring areas;

[0041] Step S4: The ambient brightness uniformity coefficient of the ith sub-monitoring area The ambient brightness uniformity coefficient threshold range set by the system Compare; When the ambient brightness uniformity coefficient of the i-th sub-monitoring area Belong to the interval When , it means that the ambient brightness of the monitoring area is balanced, and there is no need to adjust the working brightness of the LED lights in the ith sub-monitoring area; when the ambient brightness uniformity coefficient of the ith sub-monitoring area Not in range When , it indicates that the ambient brightness of the monitoring area is uneven, and the working brightness of the LED lights in the i-th sub-monitoring area needs to be adjusted;

[0042] Step S5: When the ambient brightness uniformity coefficient of the i-th sub-monitoring area When, according to the formula Calculate the working brightness of the LED lights in the ith sub-monitoring area after adjustment;

[0043] Step S6: When the ambient brightness uniformity coefficient of the i-th sub-monitoring area When, according to Calculate the working brightness of the LED lights in the ith sub-monitoring area after adjustment;

[0044] Step S7, repeat steps S4-S6 until the working brightness adjustment of the LED lights in the n sub-monitoring areas is completed.

[0045] Beneficial effects of the present invention: The environmental parameter monitoring module of the present invention divides the monitoring area into n sub-monitoring areas, and numbers each sub-monitoring area, the numbers are: 1, 2, ..., n, and monitors the environmental parameters of the n sub-monitoring areas in turn; then the data analysis module calculates the brightness uniformity coefficient of the n sub-monitoring areas according to the environmental brightness of the n sub-monitoring areas, and then compares the environmental brightness uniformity coefficient of the n sub-monitoring areas with the environmental brightness uniformity coefficient threshold range set by the system in turn. If the environmental brightness uniformity coefficient of any sub-monitoring area does not belong to the range, it means that the environmental brightness of the monitoring area is unbalanced, and it is necessary to adjust the working brightness of the LED lamp of the sub-monitoring area, and in combination with the environmental temperature and environmental humidity of each sub-monitoring area, adjust the working brightness of the LED in each sub-monitoring area to ensure that the environmental brightness of the monitoring area is balanced and improve the lighting effect of the LED lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] Figure 1 It is a partial structural schematic diagram of the LED light control system based on environmental data analysis provided by the present invention. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figure 1 As shown, the present invention is an LED lamp control system based on environmental data analysis, comprising: an environmental parameter monitoring module, an LED lamp parameter monitoring module, a data processing module, a data analysis module and a control module;

[0050] The environmental parameter monitoring module is used to monitor the brightness, temperature and humidity of the LED lamp working area in real time;

[0051] The LED lamp parameter monitoring module is used to monitor the working brightness of the LED lamp in real time;

[0052] The data processing module is used to process the real-time data acquired by the environmental parameter monitoring module and the LED lamp parameter monitoring module, and store them in the system database;

[0053] The data analysis module is used to analyze the environmental parameter monitoring module and the LED lamp parameter monitoring module, and formulate a working brightness adjustment strategy of the LED lamp according to the analysis results;

[0054] The control module is used to adjust the illumination intensity of the LED light according to the working brightness adjustment strategy of the LED light.

[0055] Through the above technical scheme, the environmental parameter monitoring module of the present invention divides the monitoring area into n sub-monitoring areas, and numbers each sub-monitoring area, the numbers are: 1, 2, ..., n, and monitors the environmental parameters of the n sub-monitoring areas in turn; then the data analysis module calculates the brightness uniformity coefficient of the n sub-monitoring areas according to the environmental brightness of the n sub-monitoring areas, and then compares the environmental brightness uniformity coefficient of the n sub-monitoring areas with the environmental brightness uniformity coefficient threshold range set by the system in turn. If the environmental brightness uniformity coefficient of any sub-monitoring area does not belong to the range, it means that the environmental brightness of the monitoring area is unbalanced, and it is necessary to adjust the working brightness of the LED lamp of the sub-monitoring area, and in combination with the environmental temperature and environmental humidity of each sub-monitoring area, adjust the working brightness of the LED in each sub-monitoring area to ensure that the environmental brightness of the monitoring area is balanced and improve the lighting effect of the LED lamp.

[0056] As a further description of the solution of the present invention, the working process of the environmental parameter monitoring module includes:

[0057] According to the area that each LED lamp is responsible for lighting, the monitoring area is divided into n sub-monitoring areas, and each sub-monitoring area is numbered in the following order: 1, 2, ..., n;

[0058] The ambient brightness of each area is monitored by a brightness sensor, the ambient temperature of each area is monitored by a temperature sensor, and the ambient humidity of each area is monitored by a humidity sensor;

[0059] The LED light parameter monitoring module is used to obtain the real-time working brightness of the LED lights corresponding to each area.

[0060] As a further description of the solution of the present invention, the working process of the data analysis module includes:

[0061] Obtain the time-varying data of the ambient brightness of the ith monitoring sub-area, and generate the time-varying function of the ambient brightness of the ith monitoring sub-area according to the time-varying data of the ambient brightness of the ith monitoring sub-area , where i belongs to [1,n];

[0062] Construct a mathematical calculation model for brightness uniformity coefficient, the expression is:

[0063] ;

[0064] In the formula, is the ambient brightness uniformity coefficient of the ith sub-monitoring area, is the intermediate parameter, is the current ambient brightness of the ith sub-monitoring area, and are weight coefficients respectively;

[0065] Constructing intermediate parameters The mathematical calculation model of is expressed as:

[0066] ;

[0067] In the formula, To monitor the initial time, To monitor the current moment;

[0068] According to the mathematical calculation model of brightness uniformity coefficient, the brightness uniformity coefficients of n sub-monitoring areas are calculated in turn, and the working brightness adjustment strategy of LED lamp is formulated according to the brightness uniformity coefficients of n sub-monitoring areas.

[0069] As a further description of the solution of the present invention, the working process of formulating the LED lamp working brightness adjustment strategy includes:

[0070] The uniformity coefficient of the ambient brightness of the ith sub-monitoring area The ambient brightness uniformity coefficient threshold range set by the system Compare;

[0071] When the ambient brightness uniformity coefficient of the i-th sub-monitoring area Belong to the interval When , it means that the ambient brightness of the monitoring area is balanced, and there is no need to adjust the working brightness of the LED lights in the i-th sub-monitoring area;

[0072] When the ambient brightness uniformity coefficient of the i-th sub-monitoring area Not in range When , it indicates that the ambient brightness of the monitoring area is uneven, and the working brightness of the LED lights in the i-th sub-monitoring area needs to be adjusted;

[0073] Compare the ambient brightness uniformity coefficients of the n sub-monitoring areas with the ambient brightness uniformity coefficient threshold interval set by the system. By comparison, if the ambient brightness uniformity coefficient of any sub-monitoring area does not belong to the interval , it indicates that the ambient brightness of the monitoring area is uneven and the working brightness of the LED lights in the sub-monitoring area needs to be adjusted.

[0074] Through the above technical solution, this embodiment obtains the time-varying data of the ambient brightness of the ith sub-monitoring area and generates the time-varying function of the ambient brightness of the ith monitoring sub-area. , then according to the formula Calculate the brightness uniformity coefficient of the i-th monitoring area, where: It is expressed as the difference between the cumulative change of ambient brightness in the ith sub-monitoring area and the average cumulative change of ambient brightness in all areas within the monitoring area during the monitoring period. It is expressed as the difference between the ambient brightness of the ith sub-monitoring area and the average ambient brightness of all areas in the monitoring area at the current monitoring time point, and then the brightness uniformity coefficients of the n sub-monitoring areas are calculated in turn, and the ambient brightness uniformity coefficients of the n sub-monitoring areas are compared with the ambient brightness uniformity coefficient threshold interval set by the system. By comparison, if the ambient brightness uniformity coefficient of any sub-monitoring area does not belong to the interval , it indicates that the ambient brightness of the monitoring area is uneven and the working brightness of the LED lights in the sub-monitoring area needs to be adjusted.

[0075] As a further description of the solution of the present invention, the method for adjusting the working brightness of the LED lamp in the i-th sub-monitoring area includes:

[0076] when , it means that the working brightness of the LED lights in the ith sub-area is dim, and the working brightness of the LED lights in the ith sub-area needs to be increased. The current working brightness of the LED lights in the ith sub-monitoring area is obtained. , the ambient temperature of the ith sub-monitoring area , the ambient humidity of the ith sub-monitoring area ;

[0077] The adjusted working brightness of the LED lights in the ith sub-monitoring area is:

[0078] ;

[0079] In the formula, is the working brightness of the LED lights in the ith sub-monitoring area after adjustment, is the conversion factor, The standard ambient temperature set for the system, The standard ambient humidity set for the system, is the weight coefficient corresponding to the ambient temperature, is the weight coefficient corresponding to the ambient humidity, It is the reference coefficient of the ratio of ambient temperature and ambient humidity.

[0080] As a further description of the solution of the present invention, the method for adjusting the working brightness of the LED lamp in the i-th sub-monitoring area also includes:

[0081] when , it means that the working brightness of the LED lights in the ith sub-area is brighter, and it is necessary to reduce the working brightness of the LED lights in the ith sub-area, and obtain the current working brightness of the LED lights in the ith sub-monitoring area. , the ambient temperature of the ith sub-monitoring area , the ambient humidity of the ith sub-monitoring area ;

[0082] The adjusted working brightness of the LED lights in the ith sub-monitoring area is:

[0083] .

[0084] Through the above technical solution, when When the working brightness of the LED lights in the ith sub-monitoring area needs to be increased, the current working brightness of the LED lights in the ith sub-monitoring area is obtained. , the ambient temperature of the ith sub-monitoring area , the ambient humidity of the ith sub-monitoring area , then, by the formula Calculate the adjusted LED light working brightness, when When the working brightness of the LED lights in the ith sub-monitoring area needs to be reduced, the current working brightness of the LED lights in the ith sub-monitoring area is obtained. , the ambient temperature of the ith sub-monitoring area , the ambient humidity of the ith sub-monitoring area , then, by the formula Calculate the adjusted working brightness of the LED light.

[0085] A method for controlling an LED lamp based on environmental data analysis, the method comprising the following steps:

[0086] Step S1, dividing the monitoring area into n sub-monitoring areas, and numbering each sub-monitoring area, the numbers are: 1, 2, ..., n;

[0087] Step S2, monitoring the environmental parameters of n sub-monitoring areas in sequence;

[0088] Step S3, calculating the brightness uniformity coefficient of the n sub-monitoring areas according to the ambient brightness of the n sub-monitoring areas;

[0089] Step S4: The ambient brightness uniformity coefficient of the ith sub-monitoring area The ambient brightness uniformity coefficient threshold range set by the system Compare; When the ambient brightness uniformity coefficient of the i-th sub-monitoring area Belong to the interval When , it means that the ambient brightness of the monitoring area is balanced, and there is no need to adjust the working brightness of the LED lights in the ith sub-monitoring area; when the ambient brightness uniformity coefficient of the ith sub-monitoring area Not in range When , it indicates that the ambient brightness of the monitoring area is uneven, and the working brightness of the LED lights in the i-th sub-monitoring area needs to be adjusted;

[0090] Step S5: When the ambient brightness uniformity coefficient of the i-th sub-monitoring area When, according to the formula Calculate the working brightness of the LED lights in the ith sub-monitoring area after adjustment;

[0091] Step S6: When the ambient brightness uniformity coefficient of the i-th sub-monitoring area When, according to Calculate the working brightness of the LED lights in the ith sub-monitoring area after adjustment;

[0092] Step S7, repeat steps S4-S6 until the working brightness adjustment of the LED lights in the n sub-monitoring areas is completed.

[0093] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An LED light control system based on environmental data analysis, characterized in that: include: Environmental parameter monitoring module, LED light parameter monitoring module, data processing module, data analysis module and control module; The environmental parameter monitoring module is used to monitor the brightness, temperature and humidity of the LED lamp working area in real time; The LED lamp parameter monitoring module is used to monitor the working brightness of the LED lamp in real time; The data processing module is used to process the real-time data acquired by the environmental parameter monitoring module and the LED lamp parameter monitoring module, and store them in the system database; The data analysis module is used to analyze the environmental parameter monitoring module and the LED lamp parameter monitoring module, and formulate a working brightness adjustment strategy of the LED lamp according to the analysis results; The control module is used to adjust the LED light intensity according to the working brightness adjustment strategy of the LED light; The working process of the environmental parameter monitoring module includes: According to the area that each LED lamp is responsible for lighting, the monitoring area is divided into n sub-monitoring areas, and each sub-monitoring area is numbered in the following order: 1, 2, ..., n; The ambient brightness of each area is monitored by a brightness sensor, the ambient temperature of each area is monitored by a temperature sensor, and the ambient humidity of each area is monitored by a humidity sensor; The LED light parameter monitoring module is used to obtain the real-time working brightness of the LED lights corresponding to each area in real time; The working process of the data analysis module includes: Obtain the time-varying data of the ambient brightness of the ith monitoring sub-area, and generate the time-varying function L of the ambient brightness of the ith monitoring sub-area according to the time-varying data of the ambient brightness of the ith monitoring sub-area i (t), where i belongs to [1,n]; Construct a mathematical calculation model for brightness uniformity coefficient, the expression is: In the formula, θ i is the ambient brightness uniformity coefficient of the ith sub-monitoring area, S i is the intermediate parameter, L i (t C ) is the current ambient brightness of the ith sub-monitoring area, α and β are weight coefficients respectively; Constructing the intermediate parameter S i The mathematical calculation model of is expressed as: Where, t S To monitor the initial time, t C To monitor the current moment; According to the mathematical calculation model of brightness uniformity coefficient, the brightness uniformity coefficients of n sub-monitoring areas are calculated in turn, and the working brightness adjustment strategy of LED lamps is formulated according to the brightness uniformity coefficients of n sub-monitoring areas; The working process of formulating the LED lamp working brightness adjustment strategy includes: The uniformity coefficient of ambient brightness in the ith sub-monitoring area is θ i Compare with the ambient brightness uniformity coefficient threshold interval [θ1, θ2] set by the system; When the ambient brightness uniformity coefficient θ of the i-th sub-monitoring area i When it belongs to the interval [θ1, θ2], it means that the ambient brightness of the monitoring area is balanced, and there is no need to adjust the working brightness of the LED lights in the i-th sub-monitoring area; When the ambient brightness uniformity coefficient θ of the i-th sub-monitoring area i When it does not belong to the interval [θ1, θ2], it means that the ambient brightness of the monitoring area is uneven, and the working brightness of the LED lights in the i-th sub-monitoring area needs to be adjusted; Compare the ambient brightness uniformity coefficients of the n sub-monitoring areas with the ambient brightness uniformity coefficient threshold interval [θ1, θ2] set by the system in turn. If the ambient brightness uniformity coefficient of any sub-monitoring area does not belong to the interval [θ1, θ2], it means that the ambient brightness of the monitoring area is uneven, and the working brightness of the LED lamp in the sub-monitoring area needs to be adjusted; The method for adjusting the working brightness of the LED lamp in the i-th sub-monitoring area includes: When θ i ∈(0, θ1), it means that the working brightness of the LED lights in the ith sub-area is dim, and it is necessary to increase the working brightness of the LED lights in the ith sub-area. Get the current working brightness F of the LED lights in the ith sub-monitoring area. i , the ambient temperature T of the ith sub-monitoring area i , the ambient humidity H of the ith sub-monitoring area i ; The adjusted working brightness of the LED lights in the ith sub-monitoring area is: In the formula, F 0i is the working brightness of the LED lights in the ith sub-monitoring area after adjustment, ω is the conversion coefficient, T is the standard ambient temperature set by the system, H is the standard ambient humidity set by the system, k1 is the weight coefficient corresponding to the ambient temperature, k2 is the weight coefficient corresponding to the ambient humidity, and k3 is the reference coefficient of the ratio of ambient temperature to ambient humidity; The method for adjusting the working brightness of the LED lamp in the i-th sub-monitoring area further includes: When θ i ∈(θ2, +∞), it means that the working brightness of the LED lights in the ith sub-area is brighter, and it is necessary to reduce the working brightness of the LED lights in the ith sub-area, and obtain the current working brightness F of the LED lights in the ith sub-monitoring area. i , the ambient temperature T of the ith sub-monitoring area i , the ambient humidity H of the ith sub-monitoring area i ; The adjusted working brightness of the LED lights in the ith sub-monitoring area is:

2. A method for controlling an LED light based on environmental data analysis, the method being based on the LED light control system based on environmental data analysis according to claim 1, characterized in that: The method comprises the following steps: Step S1, dividing the monitoring area into n sub-monitoring areas, and numbering each sub-monitoring area, the numbers are: 1, 2, ..., n; Step S2, monitoring the environmental parameters of n sub-monitoring areas in sequence; Step S3, calculating the brightness uniformity coefficient of the n sub-monitoring areas according to the ambient brightness of the n sub-monitoring areas; Step S4: The ambient brightness uniformity coefficient θ of the ith sub-monitoring area i Compared with the ambient brightness uniformity coefficient threshold interval [θ1, θ2] set by the system; when the ambient brightness uniformity coefficient θ of the i-th sub-monitoring area i When it belongs to the interval [θ1, θ2], it means that the ambient brightness of the monitoring area is balanced, and there is no need to adjust the working brightness of the LED lights in the i-th sub-monitoring area; when the ambient brightness uniformity coefficient θ of the i-th sub-monitoring area i When it does not belong to the interval [θ1, θ2], it means that the ambient brightness of the monitoring area is uneven, and the working brightness of the LED lights in the i-th sub-monitoring area needs to be adjusted; Step S5: When the ambient brightness uniformity coefficient θ of the i-th sub-monitoring area i ∈(0,θ1), according to the formula Calculate the working brightness of the LED lights in the ith sub-monitoring area after adjustment; Step S6: When the ambient brightness uniformity coefficient θ of the i-th sub-monitoring area i ∈(θ2,+∞), according to Calculate the working brightness of the LED lights in the ith sub-monitoring area after adjustment; Step S7, repeat steps S4-S6 until the working brightness adjustment of the LED lights in the n sub-monitoring areas is completed.

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