A multi-scene lighting control decision system based on big data analysis

Abstract

The present invention discloses a multi-scenario lighting control decision system based on big data analysis, comprising a data acquisition module, a preprocessing module, a database module, a data processing module, and a data output module; the preprocessing module uses real-time data information to analyze and select a first illumination light; the data processing module is used to adjust the first illumination light according to lighting requirements, and generate a lighting decision report, and select the position and quantity of lamps, and generate a lamp control report; when the present invention is used, an activity area that can meet the normal changes in the body position of the target person is first preset, and then the reasonable illumination range of the surface light is inferred according to the illumination angle requirements and height of the surface light, and the number of lamps and the illumination angle of the lamps are reasonably matched according to the illumination range and the activity area, which can reduce the problem of a large amount of overlap in the illumination ranges of multiple lamps, reduce the number of lamps used, and thus achieve the purpose of energy saving and environmental protection.

Description

Technical Field

[0001] The present invention relates to the field of lighting management, and in particular to a multi-scene lighting control decision system based on big data analysis. Background Art

[0002] Surface lights are one of the important lamps for lighting arrangement in many scenes. Their use effect is mainly reflected in providing uniform and soft lighting, effectively supplementing and balancing light, reducing shadows and dark areas, and making the subject or scene brighter, clearer and more three-dimensional; when the surface light is in use, the angle between the optical axis and the stage floor is usually 45°~60°, which can not only provide good visibility, but also reasonably block the shadows behind the actors, making the actors' images more three-dimensional; when the angle is greater than 60°, the actors move to the front of the stage, and the increase in facial shadows will reduce the lighting on the characters' faces, reducing the sense of lighting brightness; when the angle is less than 45°, the back projection of the characters or scenery will increase relatively with the change in depth, affecting the image illumination effect, and at the same time increasing the difficulty of illumination.

[0003] Traditional surface light control systems often rely on manual settings or simple timing control, and are unable to use lamps reasonably according to lighting needs. Generally, multiple lamps are selected to illuminate the area where lighting is required to meet the lighting needs, which often results in high energy consumption. At the same time, it is unable to achieve dynamic adjustment according to different scenes and needs, and the management efficiency is low. To solve this problem, a multi-scene lighting control decision system based on big data analysis is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is: how to solve the problem that the existing security protection system has a single protection type, resulting in poor protection effect and bringing certain impacts on the use of the security protection system, and provides a multi-scene lighting control decision system based on big data analysis.

[0005] The present invention solves the above technical problems through the following technical solutions. The present invention includes a data acquisition module, a preprocessing module, a database module, a data processing module, and a data output module;

[0006] The data acquisition module is used to collect real-time data information within the venue;

[0007] The preprocessing module is used to receive real-time data information, analyze the real-time data information and select the first irradiation light;

[0008] The database module is used to store the location parameters of the lighting fixtures at the venue;

[0009] The data processing module is used to receive real-time data information and lamp position parameters, and infer the lighting requirements of the target person by analyzing the real-time data information, adjust the first illumination light according to the lighting requirements, and generate a lighting decision report; then import the lamp position parameters to match and analyze the lighting decision report, select the position and quantity of the lamps according to the analysis results, and generate a lighting control report;

[0010] The data output module is used to receive and output lighting decision reports and lighting control reports.

[0011] Preferably, the real-time data information includes real-time image information and real-time size data, and the first irradiation light selection process is:

[0012] Acquire real-time image data in the venue, obtain the position of the target person, and make a standard circle with the target person as the center and a preset size D as the diameter to generate the activity area A1 of the target person;

[0013] Select the first illumination light using preset rules;

[0014] The default rules are:

[0015] Collect the height dimension data H1 of the lamp and the height dimension data H2 of the target person;

[0016] Calculate the effective illumination width L1 of a single lamp. The specific calculation process is:

[0017] L1=(H1-H2)·(cosα1-cosα2)

[0018] Among them, α1 is the minimum irradiation angle of the effective light, and α2 is the maximum irradiation angle of the effective light;

[0019] When L1 ≥ D, a single lamp is selected as the light source;

[0020] Concentric circles A2 are made on the ground with the target person as the center and (H1-H2)·cosα1 and (H1-H2)·cosα2 as the radius respectively, and the concentric circles are vertically translated to the height of H1 to generate concentric circles A3;

[0021] Mark the lamps within the concentric circle A3;

[0022] A concentric circle A3 with a radius B passing through the center of the circle is drawn, and the direction of the radius B is the facial orientation of the target person;

[0023] The radius B intersects the two concentric circles at points B1 and B2 respectively. The midpoint B3 between points B1 and B2 is taken.

[0024] With point B3 as the center and the preset size Dr as the radius, make a standard circle A4, which is recorded as the lamp selection area;

[0025] Select any lamp in the lamp selection area;

[0026] The light of the selected lamp pointing to the target person will be used as the first illumination light;

[0027] When LI<D, the active area A1 is divided into a plurality of sub-areas A5 with a size smaller than D;

[0028] The illumination lamps of each sub-area A5 are selected respectively, and the light of each lamp directed toward the target person is combined together as the first illumination light.

[0029] Preferably, the generation process of the active area A1 is specifically as follows:

[0030] When there is only one target person, a standard circle is made with the target person as the center and a preset size D as the diameter to generate the target person's activity area A1;

[0031] When there are multiple target persons, a standard circle is made with each target person as the center and a preset size D as the diameter, and multiple standard circles are merged to generate the activity area A1.

[0032] Preferably, the lamp selection process also includes:

[0033] A spatial rectangular coordinate system is established with the origin of the concentric circle A3 as the origin, the preset size D as the unit, and the vertical direction as the Z axis;

[0034] Read the coordinates of point B1 and the location of the lamp respectively;

[0035] Taking the origin as the reference point C, calculate the direction vector from the reference point C to point B1 and the direction vector pointing from the reference point C to the location of the lamp ;

[0036] Calculate the vector angle θ between two direction vectors. The specific calculation process is:

[0037] ;

[0038] When the vector angle θ>preset threshold Q1, the data of the first irradiation light is cleared and the lamp is reselected.

[0039] Preferably, the generation process of the lighting decision report is:

[0040] Read the active area A1 and obtain the geometric center point T1 of the active area A1;

[0041] Acquire the real-time image data of the target person, mark the position of the target person, and record it as the mark point T2;

[0042] Connect the center point T1 and point T2, and extend the line segment T1T2 to intersect the boundary line of the active area A1 to point T3, and point T2 is located between the center point T1 and point T3;

[0043] Read the dimension data L2 between the center point T1 and point T3, and then read the dimension data L3 between point T2 and point T3;

[0044] Use the formula E1=L3 / L2 to calculate how far away the target person is from the activity area line;

[0045] When the distance E1 is less than the preset threshold Q2, a standard circle A6 is made with the target person as the geometric center and the preset size D as the radius, the standard circle A6 is determined as the lighting requirement area A7, and a lighting decision report is generated to adjust the lighting to the lighting requirement area A7.

[0046] Preferably, when the distance degree E1 ≥ the preset threshold value Q2, the process of generating the lighting decision report further includes:

[0047] Read the marker points T2 and T3;

[0048] Make a standard circle A8 with the marked point T2 as the center and the dimension data between point T2 and point T3 as the radius;

[0049] When there are two intersection points between the standard circle A8 and the boundary line of the active area A1, the two intersection points are connected to form a line segment U1;

[0050] Draw the perpendicular bisector U2 of the line segment U1 through the marked point T2;

[0051] The intersection point of the perpendicular bisector U2 and the active area A1 is T4;

[0052] Read the dimension data L4 between point T2 and point T4;

[0053] When L4<D·E1, a standard circle A6 is made with the target person as the geometric center and a preset size D as the radius, the standard circle A6 is determined as the lighting demand area A7, and a lighting decision report is generated to adjust the lighting to the lighting demand area A7.

[0054] Preferably, the generation process of the lighting control report is:

[0055] Read the lighting decision report to obtain the lighting demand area A7;

[0056] Use the preset rules to obtain the lamp selection area of ​​the lighting demand area A7;

[0057] Import the lamp position parameters and obtain the number of lamps in the lamp selection area;

[0058] Randomly select a lamp J;

[0059] Read the height dimension data H1 of the lamp J and the height dimension data H2 of the target person;

[0060] Calculate the maximum irradiation radius R1 of lamp J. The specific calculation process is:

[0061] R1=(H1-H2)·cosα1

[0062] Get the vertical projection point W1 of the lamp J on the ground;

[0063] Make a standard circle A8 with point W1 as the center and maximum irradiation radius R1 as the radius;

[0064] Obtain two intersection points of the standard circle A8 and the active area A1, which are point W2 and point W3;

[0065] Read the dimension data between point W2 and point W3 and record it as the reference dimension;

[0066] Then calculate the reference size of each lamp in the lamp selection area respectively;

[0067] The smallest reference size is screened out, and a corresponding lamp of the smallest reference size is obtained, the lamp is used to provide light for the light demand area A7, and a lamp control report for turning on the lamp is generated.

[0068] Preferably, the process of generating the lighting control report further includes:

[0069] When the number of lamps in the lamp selection area of ​​the light demand area A7 is 0, one lamp closest to its geometric center is selected on both sides of the lamp selection area, two lamps are used to provide light for the light demand area A7, and a lamp control report for turning on the lamp is generated.

[0070] The system also includes a marking module and a service platform module. The marking module is used to read the lamp control report and mark the position of the lamp in use; the service platform module is used to read and display the position mark of the lamp.

[0071] Compared with the prior art, the present invention has the following advantages: when the control decision system is used, an activity area that can meet the normal changes in the target person's body position is first preset for the target person, and then the reasonable illumination range of the surface light is estimated according to the illumination angle requirements and height of the surface light, and the number of lamps and the illumination angle of the lamps are reasonably matched according to the illumination range of the surface light and the activity area of ​​the target person, and the lamps are selected in a targeted manner, which can reduce the problem of a large amount of overlap in the illumination range of multiple lamps and reduce the number of lamps used, thereby achieving the purpose of energy saving and environmental protection; at the same time, the system monitors the position of the target person when in use, and when it is determined that the target person may leave the preset activity range, the activity range is re-established for the target person, and then reasonable lamps are matched to maintain the continuity of the lighting and achieve the purpose of adjustment according to demand; the use of the system is not restricted by the scene, can be used in multiple scenes, and automatically matches the lights, thereby improving the management efficiency of the lamps, making the system more worthy of popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 It is the overall module diagram of the present invention. DETAILED DESCRIPTION

[0073] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0074] like Figure 1 As shown, this embodiment provides a technical solution: a multi-scene lighting control decision system based on big data analysis, including a data acquisition module, a preprocessing module, a database module, a data processing module, and a data output module;

[0075] The data acquisition module is used to collect real-time data information within the venue;

[0076] The preprocessing module is used to receive real-time data information, analyze the real-time data information and select the first irradiation light;

[0077] The database module is used to store the location parameters of the lighting fixtures at the venue;

[0078] The data processing module is used to receive real-time data information and lamp position parameters, and infer the lighting requirements of the target person by analyzing the real-time data information, adjust the first illumination light according to the lighting requirements, and generate a lighting decision report; then import the lamp position parameters to match and analyze the lighting decision report, select the position and quantity of the lamps according to the analysis results, and generate a lighting control report;

[0079] The data output module is used to receive and output lighting decision reports and lighting control reports.

[0080] When the control decision system is used, an activity area that can meet the normal changes in the target person's body position is first preset for the target person, and then the reasonable illumination range of the surface light is estimated according to the illumination angle requirements and height of the surface light. The number of lamps and the illumination angle of the lamps are reasonably matched according to the illumination range of the surface light and the activity area of ​​the target person, and the lamps are selected in a targeted manner, which can reduce the problem of a large amount of overlap in the illumination range of multiple lamps and reduce the number of lamps used, thereby achieving the purpose of energy saving and environmental protection; at the same time, the system monitors the position of the target person when in use. When it is determined that the target person may leave the preset activity range, the activity range is re-established for the target person, and then reasonable lamps are matched to maintain the continuity of lighting illumination and achieve the purpose of adjustment according to needs; the use of this system is not restricted by scenes, can be used in multiple scenes, and automatically matches lights, thereby improving the management efficiency of lamps, making the system more worthy of promotion and use.

[0081] The real-time data information includes real-time image information and real-time size data. The selection process of the first illumination light is as follows:

[0082] Acquire real-time image data in the venue, obtain the position of the target person, and make a standard circle with the target person as the center and a preset size D as the diameter to generate the activity area A1 of the target person;

[0083] It should be noted that the preset size D is predetermined based on the normal changes in the character's body position and unconscious body movements.

[0084] Select the first illumination light using preset rules;

[0085] The default rules are:

[0086] Collect the height dimension data H1 of the lamp and the height dimension data H2 of the target person;

[0087] Calculate the effective illumination width L1 of a single lamp. The specific calculation process is:

[0088] L1=(H1-H2)·(cosα1-cosα2)

[0089] Among them, α1 is the minimum irradiation angle of the effective light, and α2 is the maximum irradiation angle of the effective light;

[0090] When L1 ≥ D, a single lamp is selected as the light source;

[0091] Concentric circles A2 are made on the ground with the target person as the center and (H1-H2)·cosα1 and (H1-H2)·cosα2 as the radius respectively, and the concentric circles are vertically translated to the height of H1 to generate concentric circles A3;

[0092] Mark the lamps within the concentric circle A3;

[0093] A concentric circle A3 with a radius B passing through the center of the circle is drawn, and the direction of the radius B is the facial orientation of the target person;

[0094] The radius B intersects the two concentric circles at points B1 and B2 respectively. The midpoint B3 between points B1 and B2 is taken.

[0095] With point B3 as the center and the preset size Dr as the radius, make a standard circle A4, which is recorded as the lamp selection area;

[0096] The purpose of setting the preset size Dr is to select the lamp in the area where the target person's face is facing.

[0097] Select any lamp in the lamp selection area;

[0098] The light of the selected lamp pointing to the target person will be used as the first illumination light;

[0099] When LI<D, the active area A1 is divided into a plurality of sub-areas A5 with a size smaller than D;

[0100] The illumination lamps of each sub-area A5 are selected respectively, and the light of each lamp directed toward the target person is combined together as the first illumination light.

[0101] When using this solution, first preset an activity area for the target person that can meet his normal body position changes, then collect the illumination angle requirements and height of the surface light, and infer the illumination range of the surface light; compare the illumination range of the surface light with the activity area of ​​the target person, and select lamps in a targeted manner, which can reduce the problem of a large amount of overlapping illumination ranges of multiple lamps and reduce the number of lamps used, thereby achieving the purpose of energy saving and environmental protection.

[0102] The specific process of generating the active area A1 is as follows:

[0103] When there is only one target person, a standard circle is made with the target person as the center and a preset size D as the diameter to generate the target person's activity area A1;

[0104] When there are multiple target persons, a standard circle is made with each target person as the center and a preset size D as the diameter, and multiple standard circles are merged to generate the activity area A1.

[0105] When the above scheme is used, the irradiation range is determined according to the vertical irradiation angle of the surface light. When the irradiation range covers the activity area of ​​the target person, it can indeed meet the use requirements of the light. However, the main function of the surface light is to supplement and balance the light, reduce shadows and dark areas, and make the subject or scene brighter, clearer and more three-dimensional. When the horizontal irradiation angle of the surface light is too large with the face of the target person, the light cannot be evenly irradiated on all parts of the target person's body, affecting its irradiation effect. To solve this problem, the following further technical scheme is proposed:

[0106] Furthermore, the lamp selection process also includes:

[0107] A spatial rectangular coordinate system is established with the origin of the concentric circle A3 as the origin, the preset size D as the unit, and the vertical direction as the Z axis;

[0108] Read the coordinates of point B1 and the location of the lamp respectively;

[0109] Taking the origin as the reference point C, calculate the direction vector from the reference point C to point B1 and the direction vector pointing from the reference point C to the location of the lamp ;

[0110] Calculate the vector angle θ between two direction vectors. The specific calculation process is:

[0111] ;

[0112] When the vector angle θ>preset threshold Q1, the data of the first irradiation light is cleared and the lamp is reselected.

[0113] A rectangular coordinate system is established with the center of the concentric circle A3 as the origin, wherein the center of the concentric circle A3 is the position of the target person, wherein the direction from the origin to point B1 is the facial orientation of the target person, and the direction from the origin to the location of the lamp is the illumination direction of the lamp. Direction vectors in the two directions are obtained, and the horizontal angle between the two is calculated through the direction vectors; the lamps are newly screened through the horizontal angle to improve the use effect of the surface light.

[0114] The generation process of the lighting decision report is as follows:

[0115] Read the active area A1 and obtain the geometric center point T1 of the active area A1;

[0116] Acquire the real-time image data of the target person, mark the position of the target person, and record it as the mark point T2;

[0117] Connect the center point T1 and point T2, and extend the line segment T1T2 to intersect the boundary line of the active area A1 to point T3, and point T2 is located between the center point T1 and point T3;

[0118] Read the dimension data L2 between the center point T1 and point T3, and then read the dimension data L3 between point T2 and point T3;

[0119] Use the formula E1=L3 / L2 to calculate how far away the target person is from the activity area line;

[0120] When the distance E1 is less than the preset threshold Q2, a standard circle A6 is made with the target person as the geometric center and the preset size D as the radius, the standard circle A6 is determined as the lighting requirement area A7, and a lighting decision report is generated to adjust the lighting to the lighting requirement area A7.

[0121] In this solution, the position of the target person is obtained in real time, the position of the target person is monitored, and the possibility of the target person leaving the activity area is determined by calculating the distance between the target person and the boundary of the activity area and comparing it with the size of the activity area. When it is determined that the target person may leave the preset activity range, the activity range is re-established for the target person, and then reasonable lamps are matched to maintain the continuity of lighting and achieve the purpose of adjustment according to needs.

[0122] When there are multiple target persons, the boundaries of the activity area are irregular and may be concave. The above solution has defects when using one boundary point to judge the possibility of the target person leaving the preset activity range. To solve this problem, the following further solution is proposed:

[0123] When the distance degree E1 ≥ the preset threshold Q2, the generation process of the lighting decision report also includes:

[0124] Read the marker points T2 and T3;

[0125] Make a standard circle A8 with the marked point T2 as the center and the dimension data between point T2 and point T3 as the radius;

[0126] When there are two intersection points between the standard circle A8 and the boundary line of the active area A1, the two intersection points are connected to form a line segment U1;

[0127] Draw the perpendicular bisector U2 of the line segment U1 through the marked point T2;

[0128] The intersection point of the perpendicular bisector U2 and the active area A1 is T4;

[0129] Read the dimension data L4 between point T2 and point T4;

[0130] When L4<D·E1, a standard circle A6 is made with the target person as the geometric center and a preset size D as the radius, the standard circle A6 is determined as the lighting demand area A7, and a lighting decision report is generated to adjust the lighting to the lighting demand area A7.

[0131] In this solution, the distance from the target person to the boundary point is obtained, and a circular area is made based on the distance to determine whether there are other points on the boundary of the activity area that are close to the target person at this distance; when there are other points, it is determined that the target person is at risk of leaving the activity area, and a lighting decision report is made to improve the reliability and efficiency of the system's operation.

[0132] Among them, the generation process of the lighting control report is:

[0133] Read the lighting decision report to obtain the lighting demand area A7;

[0134] Use the preset rules to obtain the lamp selection area of ​​the lighting demand area A7;

[0135] Import the lamp position parameters and obtain the number of lamps in the lamp selection area;

[0136] Randomly select a lamp J;

[0137] Read the height dimension data H1 of the lamp J and the height dimension data H2 of the target person;

[0138] Calculate the maximum irradiation radius R1 of lamp J. The specific calculation process is:

[0139] R1=(H1-H2)·cosα1

[0140] Get the vertical projection point W1 of the lamp J on the ground;

[0141] Make a standard circle A8 with point W1 as the center and maximum irradiation radius R1 as the radius;

[0142] Obtain two intersection points of the standard circle A8 and the active area A1, which are point W2 and point W3;

[0143] Read the dimension data between point W2 and point W3 and record it as the reference dimension;

[0144] Then calculate the reference size of each lamp in the lamp selection area respectively;

[0145] The smallest reference size is screened out, and a corresponding lamp of the smallest reference size is obtained, the lamp is used to provide light for the light demand area A7, and a lamp control report for turning on the lamp is generated.

[0146] In this scheme, the number of lamps that meet the illumination requirements is first determined, and then the distance between the overlapping intersections of the illumination area of ​​the selected lamp and the original activity area is further calculated; since the illumination area and the activity area are both closed areas, and the light demand area is partially located in the original activity area, and the light demand area is in the illumination area of ​​the lamp, there must be two intersections between the illumination area of ​​the lamp and the original activity area; the shorter the distance between the two intersections, the closer the illumination position of the lamp is to the front of the target person and the lower the overlap between the illumination area of ​​the lamp and the original activity area. By screening the lamps through this method, the lamps that are close to the front of the target person and have a low overlap with the original activity area are selected to provide lighting for the light demand area A7, which can not only improve the lighting effect, but also improve the activity area of ​​the target person at this position and increase the effective utilization rate of the light.

[0147] Furthermore, the generation process of the lighting control report also includes:

[0148] When the number of lamps in the lamp selection area of ​​the light demand area A7 is 0, one lamp closest to its geometric center is selected on both sides of the lamp selection area, two lamps are used to provide light for the light demand area A7, and a lamp control report for turning on the lamp is generated.

[0149] The system also includes a marking module and a service platform module. The marking module is used to read the lamp control report and mark the position of the lamp in use; the service platform module is used to read and display the position mark of the lamp.

[0150] Monitor the lamps in use, and when problems occur with the lamps, they can be locked and repaired immediately.

[0151] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0152] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0153] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A multi-scene lighting control decision system based on big data analysis, characterized in that: It includes data acquisition module, preprocessing module, database module, data processing module and data output module; The data acquisition module is used to collect real-time data information within the venue; The preprocessing module is used to receive real-time data information, analyze the real-time data information and select the first irradiation light; The database module is used to store the location parameters of the lighting fixtures at the venue; The data processing module is used to receive real-time data information and lamp position parameters, analyze the real-time data information, infer the lighting requirements of the target person, adjust the first illumination light according to the lighting requirements, and generate a lighting decision report; Then import the lamp position parameters to match the lighting decision report, select the lamp position and quantity according to the analysis results, and generate a lamp control report; The data output module is used to receive and output lighting decision reports and lighting control reports; The real-time data information includes real-time image information and real-time size data. The selection process of the first illumination light is: Acquire real-time image data in the venue, obtain the position of the target person, and make a standard circle with the target person as the center and a preset size D as the diameter to generate the activity area A1 of the target person; Select the first illumination light using preset rules; The default rules are: Collect the height dimension data H1 of the lamp and the height dimension data H2 of the target person; Calculate the effective illumination width L1 of a single lamp. The specific calculation process is: L1=(H1-H2)·(cosα1-cosα2) Among them, α1 is the minimum irradiation angle of the effective light, and α2 is the maximum irradiation angle of the effective light; When L1 ≥ D, a single lamp is selected as the light source; Concentric circles A2 are made on the ground with the target person as the center and (H1-H2)·cosα1 and (H1-H2)·cosα2 as the radius respectively, and the concentric circles are vertically translated to the height of H1 to generate concentric circles A3; Mark the lamps within the concentric circle A3; A concentric circle A3 with a radius B passing through the center of the circle is drawn, and the direction of the radius B is the facial orientation of the target person; The radius B intersects the two concentric circles at points B1 and B2 respectively. The midpoint B3 between points B1 and B2 is taken. With point B3 as the center and the preset size Dr as the radius, make a standard circle A4, which is recorded as the lamp selection area; Select any lamp in the lamp selection area; The light of the selected lamp pointing to the target person will be used as the first illumination light; When LI<D, the active area A1 is divided into a plurality of sub-areas A5 with a size smaller than D; The illumination lamps of each sub-area A5 are selected respectively, and the light of each lamp directed toward the target person is combined together as the first illumination light.

2. According to claim 1, a multi-scene lighting control decision system based on big data analysis is characterized in that: The generation process of the active area A1 is specifically as follows: When there is only one target person, a standard circle is made with the target person as the center and a preset size D as the diameter to generate the target person's activity area A1; When there are multiple target persons, a standard circle is made with each target person as the center and a preset size D as the diameter, and multiple standard circles are merged to generate the activity area A1.

3. According to claim 1, a multi-scene lighting control decision system based on big data analysis is characterized in that: The lamp selection process also includes: A spatial rectangular coordinate system is established with the origin of the concentric circle A3 as the origin, the preset size D as the unit, and the vertical direction as the Z axis; Read the coordinates of point B1 and the location of the lamp respectively; Taking the origin as the reference point C, calculate the direction vector from the reference point C to point B1 The direction vector from the reference point C to the location of the lamp; Calculate the vector angle θ between two direction vectors. The specific calculation process is: ; When the vector angle θ>preset threshold Q1, the data of the first irradiation light is cleared and the lamp is reselected.

4. The multi-scene lighting control decision system based on big data analysis according to claim 1 is characterized in that: The generation process of the lighting decision report is as follows: Read the active area A1 and obtain the geometric center point T1 of the active area A1; Acquire the real-time image data of the target person, mark the position of the target person, and record it as the mark point T2; Connect the center point T1 and point T2, and extend the line segment T1T2 to intersect the boundary line of the active area A1 to point T3, and point T2 is located between the center point T1 and point T3; Read the dimension data L2 between the center point T1 and point T3, and then read the dimension data L3 between point T2 and point T3; Use the formula E1=L3 / L2 to calculate how far away the target person is from the activity area line; When the distance E1 is less than the preset threshold Q2, a standard circle A6 is made with the target person as the geometric center and the preset size D as the radius, the standard circle A6 is determined as the lighting requirement area A7, and a lighting decision report is generated to adjust the lighting to the lighting requirement area A7.

5. The multi-scene lighting control decision system based on big data analysis according to claim 4 is characterized by: When the distance degree E1 ≥ the preset threshold value Q2, the generation process of the lighting decision report further includes: Read the marked points T2 and T3; Make a standard circle A8 with the marked point T2 as the center and the dimension data between point T2 and point T3 as the radius; When there are two intersection points between the standard circle A8 and the boundary line of the active area A1, the two intersection points are connected to form a line segment U1; Draw the perpendicular bisector U2 of the line segment U1 through the marked point T2; The intersection point of the perpendicular bisector U2 and the active area A1 is T4; Read the dimension data L4 between point T2 and point T4; When L4<D·E1, a standard circle A6 is made with the target person as the geometric center and a preset size D as the radius, the standard circle A6 is determined as the lighting demand area A7, and a lighting decision report is generated to adjust the lighting to the lighting demand area A7.

6. A multi-scene lighting control decision system based on big data analysis according to claim 4 or 5, characterized in that: The generation process of the lighting control report is as follows: Read the lighting decision report to obtain the lighting demand area A7; Use the preset rules to obtain the lamp selection area of ​​the lighting demand area A7; Import the lamp position parameters and obtain the number of lamps in the lamp selection area; Randomly select a lamp J; Read the height dimension data H1 of the lamp J and the height dimension data H2 of the target person; Calculate the maximum irradiation radius R1 of lamp J. The specific calculation process is: R1=(H1-H2)·cosα1 Get the vertical projection point W1 of the lamp J on the ground; Make a standard circle A8 with point W1 as the center and maximum irradiation radius R1 as the radius; Obtain two intersection points of the standard circle A8 and the active area A1, which are point W2 and point W3; Read the dimension data between point W2 and point W3 and record it as the reference dimension; Then calculate the reference size of each lamp in the lamp selection area respectively; The smallest reference size is screened out, and a corresponding lamp of the smallest reference size is obtained, the lamp is used to provide light for the light demand area A7, and a lamp control report for turning on the lamp is generated.

7. The multi-scene lighting control decision system based on big data analysis according to claim 6 is characterized by: The generation process of the lighting control report also includes: When the number of lamps in the lamp selection area of ​​the light demand area A7 is 0, one lamp closest to its geometric center is selected on both sides of the lamp selection area, two lamps are used to provide light for the light demand area A7, and a lamp control report for turning on the lamp is generated.

8. The multi-scene lighting control decision system based on big data analysis according to claim 7 is characterized by: It also includes a marking module and a service platform module. The marking module is used to read the lamp control report and mark the position of the lamp in use; the service platform module is used to read and display the position mark of the lamp.

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