Building group comprehensive reflectivity calculation device and method

Abstract

The invention provides a device and method for calculating the comprehensive reflectivity of a building group, and the device is characterized in that the device comprises a space relation generation module which is used for processing a target region image, and obtaining building space data and a radiation angle coefficient; the parameter calculation module is used for constructing a building group model according to the building space data, and calculating to obtain reflectivity data according to the sun position data and the building material data in the sun data in combination with the building group model; and the environment calculation module is used for calculating the corresponding comprehensive reflectivity of the building group in different scenes according to the existing meteorological parameters, the reflectivity data and the radiation angle coefficient in combination with the building group model. In a word, the method can conveniently, comprehensively and effectively evaluate the solar radiant heat environment of the building group.

Description

Technical Field

[0001] The invention relates to a method for evaluating the solar radiation environment of a building complex, and in particular to a device and method for calculating the comprehensive reflectivity of a building complex. Background Art

[0002] The particularity and randomness of building clusters directly affect the transfer of solar radiation heat, causing heat accumulation in building clusters, affecting building energy consumption and resident comfort. The characteristics of the variable radiation environment and complex composition structure in building clusters have always been a difficulty faced in the field of outdoor environment research.

[0003] In existing research, the commonly used methods are mainly divided into distributed parameter method and lumped parameter method. The distributed parameter method is usually based on computational fluid dynamics and thermodynamics. The study area is divided into a grid, and the heat conduction, convection heat transfer and radiation heat transfer of each grid are calculated and coupled to obtain the temperature, humidity and velocity of the air at different positions in the study area at a certain time. The results are related to time and space, that is, the time step and grid division. When calculating, the model needs to be simplified according to experience. When dividing the grid, the quality of the grid is high. The boundary conditions also require certain theoretical knowledge to be reasonably set. In addition, the calculation simulation takes a long time, and the amount of data processed in the later stage is large. It is difficult to use and takes a long time, which is much higher than the use requirements in the early stage of architectural design.

[0004] The lumped parameter method assumes that the air temperature in the study area is the same at a certain moment, that is, the entire space in the study area is a completely uniform particle, and the internal air temperature is related to time, but has nothing to do with the spatial position. By calculating the thermal balance of the elements around the building, the average temperature of the entire area at different times can be predicted. The simulation tool with the lumped parameter method as the theoretical model has the advantages of fast calculation speed and simple operation, and is more suitable for use in the early stage of building design. However, due to the complexity of the building complex, the results obtained by the existing lumped parameter method generally cannot take into account the impact of the difference in the interface of the building complex on the overall environment, and this difference is more important for the comparison and analysis of the radiation environment of the building complex.

[0005] Therefore, there is an urgent need for a radiation environment assessment method for buildings that can calculate complex environments more comprehensively and effectively while meeting usage requirements. Summary of the invention

[0006] The present invention is made to solve the above-mentioned problem, and its purpose is to provide a device and method for calculating the comprehensive reflectivity of a building complex.

[0007] The present invention provides a device for calculating the comprehensive reflectivity of a building complex, which is used to obtain the comprehensive reflectivity of the building complex according to the target area image of the building complex, the building material data, and the solar data, and has the following characteristics: a spatial relationship generation module, which is used to process the target area image to obtain the building space data and the radiation angle coefficient; a parameter calculation module, which is used to construct a building complex model according to the building space data, and calculate the reflectivity data according to the sun position data and the building material data in the solar data, combined with the building complex model; an environment calculation module, which is used to calculate the reflectivity data according to the existing meteorological parameters, the reflectivity data and the radiation angle coefficient, combined with the building complex model. The corresponding comprehensive reflectivity of the building complex in different scenes, wherein the environment calculation module includes: a reflection factor calculation unit, which is used to calculate the comprehensive reflection factor according to the reflectivity data and the radiation angle coefficient; a basic data calculation unit, which is used to calculate the proportion and shading ratio coefficient, scattered radiation, direct radiation and total incident radiation of each surface of the building complex according to meteorological parameters, solar data and the building complex model; a reflection amount calculation unit, which is used to calculate the spatial reflection amount according to the proportion value, shading ratio coefficient, scattered radiation, direct radiation and comprehensive reflection factor; a comprehensive reflectivity calculation unit, which is used to calculate the comprehensive reflectivity according to the spatial reflection amount and the total incident radiation.

[0008] The building complex comprehensive reflectivity calculation device provided by the present invention may also have the following features: wherein the calculation expression of the comprehensive reflectivity factor is: α j =1-ρ j , where ρ k is the building surface reflectance of the building surface k in the reflectance data, X i,j is the radiation angle coefficient between surface i and surface j, α j is the absorptivity of surface j, R k,j is the comprehensive reflection factor of surface k to surface j.

[0009] The device for calculating the comprehensive reflectivity of a building complex provided by the present invention may also have the following characteristics: wherein the calculation expression of the spatial reflectivity is: Where Q * is the spatial reflection amount, m is the total number of surfaces of the building complex, and f i is the occlusion ratio coefficient, Q D is direct radiation, Q d is the scattered radiation, R i is the comprehensive reflection factor corresponding to the reflecting surface i, p i Is the percentage value.

[0010] The building complex comprehensive reflectivity calculation device provided by the present invention may also have the following features: wherein the calculation expression of the comprehensive reflectivity is: Where R * is the comprehensive reflectivity, Q * is the spatial reflection amount, Q t is the total incident radiation.

[0011] The building complex comprehensive reflectivity calculation device provided by the present invention may also have the following feature: wherein the proportion value is the ratio of the surface area of ​​the corresponding surface to the sum of the surface areas of all surfaces of the building complex, or the surface area of ​​the corresponding surface.

[0012] The device for calculating the comprehensive reflectivity of a building complex provided by the present invention may also have the following feature: wherein the shielding ratio coefficient is the ratio of the area shielded by the surface to the total area of ​​the surface.

[0013] The building complex comprehensive reflectivity calculation device provided by the present invention may also have the following features: wherein, the spatial relationship generation module includes: a shadow removal unit, used to determine whether there is a shadow in the target area image, if so, the shadow is removed from the target area image to obtain a shadow-free image, if not, the target area image is used as a shadow-free image; a noise reduction unit, used to perform image noise reduction on the shadow-free image to obtain a noise-reduced image; a roll angle correction unit, used to determine whether the noise-reduced image needs roll angle correction, if so, the roll angle correction is performed on the noise-reduced image to obtain a corrected image, if not, the noise-reduced image is used as a corrected image; a data calculation unit, used to calculate the building space data and the radiation angle coefficient based on the corrected image.

[0014] The device for calculating the comprehensive reflectivity of a building complex provided by the present invention may also have the following features: wherein the reflectivity data includes the reflectivity of the surface material and the reflectivity of the building surface; the parameter calculation module divides the surface materials of the building complex into porous surfaces, transparent surfaces and opaque surfaces according to the building material data; the porous surface is a surface material that is translucent and opaque, the transparent surface is a surface material that is translucent and transparent, and the opaque surface is a surface material that is not translucent.

[0015] The present invention also provides a method for calculating the comprehensive reflectivity of a building complex, which is used to obtain the comprehensive reflectivity of the building complex according to the target area image of the building complex, the building material data, and the solar data, and has the following characteristics, including the following steps: step S1, processing the target area image to obtain the building space data and the radiation angle coefficient; step S2, constructing a building complex model according to the building space data, and calculating the reflectivity data according to the sun position data and the building material data in the solar data, combined with the building complex model; step S3, calculating according to the meteorological parameters, the reflectivity data and the radiation angle coefficient, combined with the building complex model The corresponding comprehensive reflectivity of the building complex in different scenes, wherein step S3 includes the following sub-steps: step S3-1, calculating the comprehensive reflection factor according to the reflectivity data and the radiation angle coefficient; step S3-2, calculating the proportion and shading ratio coefficient, scattered radiation, direct radiation and total incident radiation of each surface of the building complex according to meteorological parameters, solar data and the building complex model; step S3-3, calculating the spatial reflection amount according to the proportion, shading ratio coefficient, scattered radiation, direct radiation and comprehensive reflection factor; step S3-4, calculating the comprehensive reflectivity according to the spatial reflection amount and the total incident radiation.

[0016] Functions and Effects of the Invention

[0017] According to the device and method for calculating the comprehensive reflectivity of a building complex involved in the present invention, the spatially related data of a building complex of any building layout is extracted through the spatial relationship generation module, and the reflectivity of the building complex is calculated through the parameter calculation module, and then the comprehensive reflectivity of the building complex under the specified environment is calculated according to the environment calculation module, so as to realize the analysis and evaluation of the solar radiation heat environment of the building complex under the specified environment. Therefore, the device and method for calculating the comprehensive reflectivity of a building complex of the present invention can conveniently, comprehensively and effectively evaluate the solar radiation heat environment of the building complex. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a block diagram of a device for calculating the comprehensive reflectivity of a building complex in an embodiment of the present invention;

[0019] Figure 2 is a schematic flow chart of a method for calculating the comprehensive reflectivity of a building complex in an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of three building complexes in an embodiment of the present invention;

[0021] Figure 4 It is the comprehensive reflectivity corresponding to the three building complexes in each season and each time period in the embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments and the accompanying drawings specifically illustrate the device and method for calculating the comprehensive reflectivity of a building complex of the present invention.

[0023] When the sun is incident on a building complex, the reflection process on the surface generally occurs in two situations: the first is that the sun is incident on the top surface of the building and the ground far away from the building, and the surface directly reflects once; the second is that the sun is incident on the multi-surface structure of the building complex, and multiple reflections occur between the surfaces. The latter radiation transfer phenomenon is the main feature that distinguishes the radiation heat transfer of a building complex from that of a single building. Therefore, the present invention mainly takes the radiation amount reflected to the spatial area of ​​the building complex after the sun is incident on the surface as the main research object, that is, the reflected radiation part of the effective radiation, and explores the solar radiation heat accumulation potential of the building complex from an overall perspective.

[0024] In this embodiment, a device and method for calculating the comprehensive reflectivity of a building complex are provided, which are used to obtain the comprehensive reflectivity of the building complex based on the target area image of the building complex, the building material data, and the solar data. In this embodiment, the comprehensive reflectivity can reflect the reflection ability of the building complex to solar radiation, thereby reflecting the heat accumulation potential of solar radiation in the building complex, and finally realizing the analysis and evaluation of the solar radiation thermal environment of the building complex.

[0025] Figure 1 It is a block diagram of a device for calculating the comprehensive reflectivity of a building complex in an embodiment of the present invention.

[0026] like Figure 1 As shown, the building complex comprehensive reflectivity calculation device 100 includes a spatial relationship generation module 10, a parameter calculation module 20, an environment calculation module 30 and a control module 40 for controlling the above modules.

[0027] The spatial relationship generation module 10 is used to process the target area image to obtain the building space data and the radiation angle coefficient.

[0028] The spatial relationship generation module 10 includes a shadow removal unit 101 , a noise reduction unit 102 , a roll angle correction unit 103 and a data calculation unit 104 .

[0029] The shadow removal unit 101 is used to determine whether there is a shadow in the target area image. If so, the shadow is removed from the target area image to obtain a shadow-free image. If not, the target area image is used as a shadow-free image.

[0030] The noise reduction unit 102 is used to perform image noise reduction on the shadow-free image to obtain a noise-reduced image.

[0031] The roll angle correction unit 103 is used to determine whether the noise reduction image needs roll angle correction. If so, the roll angle correction is performed on the noise reduction image to obtain a corrected image. If not, the noise reduction image is used as the corrected image.

[0032] The data calculation unit 104 is used to calculate the building space data and the radiation angle coefficient according to the corrected image.

[0033] The parameter calculation module 20 is used to construct a building complex model according to the building space data, and calculate the reflectivity data according to the sun position data and building material data in the sun data in combination with the building complex model.

[0034] The reflectivity data includes the reflectivity of surface materials and the reflectivity of building surfaces.

[0035] In this embodiment, the reflectivity of the surface material is determined according to the incident angle and the equivalent refractive index of the surface, and the reflectivity of the building surface is calculated according to the reflectivity of the surface material and the window-to-wall ratio of the facade. The window-to-wall ratio is the area ratio between the windows and the entire facade in the facade. In this embodiment, the incident angle is calculated according to the position of the surface in the building complex and the position of the sun, and the equivalent refractive index is calculated according to the optical properties of the surface material.

[0036] The parameter calculation module 20 classifies the surface materials of the building complex into porous surfaces, transparent surfaces and opaque surfaces according to the building material data. The porous surface is a surface material that is transparent and opaque. The transparent surface is a surface material that is transparent and transparent. The opaque surface is a surface material that is not transparent.

[0037] In this embodiment, the Monte Carlo method is used to solve the reflectivity data of the porous surface, and the partition calculation method is used to solve the reflectivity data of both the opaque surface and the transparent surface.

[0038] The environment calculation module 30 is used to calculate the corresponding comprehensive reflectivity of the building complex in different scenes according to the existing meteorological parameters, reflectivity data and radiation angle coefficient, combined with the building complex model. In this embodiment, the environment calculation module 30 stores the preset meteorological parameters of different scenes. In other embodiments, the environment calculation module 30 can obtain meteorological parameters through other channels, such as obtaining meteorological parameters through the Internet, or the user inputs specific meteorological parameters.

[0039] The environment calculation module 30 includes a reflection factor calculation unit 301 , a basic data calculation unit 302 , a reflection amount calculation unit 303 and a comprehensive reflectivity calculation unit 304 .

[0040] The reflection factor calculation unit 301 is used to calculate the comprehensive reflection factor according to the reflectivity data and the radiation angle coefficient.

[0041] Among them, the calculation expression of the comprehensive reflection factor is:

[0042]

[0043] α j =1-ρ j ,

[0044] Where ρ k is the building surface reflectance of the building surface k in the reflectance data, X i,j is the radiation angle coefficient between surface i and surface j, α j is the absorptivity of surface j, R k,j is the comprehensive reflection factor of surface k to surface j.

[0045] In this embodiment, the comprehensive reflection factor is calculated by using the building surface reflectivity. The building surface reflectivity is determined by the window-to-wall ratio in the building information. That is, the surface material reflectivity of the windows and walls on a vertical or horizontal surface of the building is used in combination with the window-to-wall ratio to calculate the corresponding building surface reflectivity as the reflectivity of the vertical or horizontal surface.

[0046] The basic data calculation unit 302 is used to calculate the proportion value and shielding ratio coefficient of each surface of the building complex, scattered radiation, direct radiation and total incident radiation according to meteorological parameters, solar data and the building complex model.

[0047] The proportion value is the ratio of the surface area of ​​the corresponding surface to the surface area of ​​all surfaces of the building complex, or the surface area of ​​the corresponding surface. The occlusion ratio coefficient is the ratio of the area of ​​the surface being occluded to the total area of ​​the surface.

[0048] In this embodiment, when the proportions of the surfaces of the building complex are ratios, the following relationship is satisfied:

[0049]

[0050] Where m is the total number of surfaces, p i is the proportion of surface i.

[0051] The reflection amount calculation unit 303 is used to calculate the spatial reflection amount according to the proportion value, the shading ratio coefficient, the scattered radiation, the direct radiation and the comprehensive reflection factor.

[0052] Among them, the calculation expression of spatial reflection is:

[0053]

[0054] Where Q * is the spatial reflection amount, m is the total number of surfaces of the building complex, and f i is the occlusion ratio coefficient, Q Dis direct radiation, Q d is the scattered radiation, R i is the comprehensive reflection factor corresponding to the reflecting surface i, p i Is the percentage value.

[0055] The comprehensive reflectivity calculation unit 304 is used to calculate the comprehensive reflectivity according to the spatial reflection amount and the total incident radiation.

[0056] Among them, the calculation expression of comprehensive reflectivity is:

[0057]

[0058] Where R * is the comprehensive reflectivity, Q * is the spatial reflection amount, Q t is the total incident radiation.

[0059] The following describes the process of using the building complex comprehensive reflectivity calculation device 100 to calculate the building complex comprehensive reflectivity in conjunction with the accompanying drawings.

[0060] Figure 2 It is a flow chart of a method for calculating the comprehensive reflectivity of a building complex in an embodiment of the present invention.

[0061] like Figure 2 As shown, the method for calculating the comprehensive reflectivity of the building complex includes the following steps:

[0062] Step S1, using the spatial relationship generation module 10 to process the target area image to obtain building space data and radiation angle coefficient.

[0063] Step S2, using the parameter calculation module 20 to construct a building complex model according to the building space data, and calculating the reflectivity data based on the sun position data and building material data in the sun data in combination with the building complex model.

[0064] Step S3, using the environment calculation module 30 to calculate the corresponding comprehensive reflectivity of the building complex in different scenes according to the meteorological parameters, reflectivity data and radiation angle coefficient, combined with the building complex model.

[0065] Wherein, step S3 includes the following sub-steps:

[0066] Step S3-1, using the reflection factor calculation unit 301 to calculate the comprehensive reflection factor according to the reflectivity data and the radiation angle coefficient.

[0067] Step S3-2, using the basic data calculation unit 302 to calculate the proportion value and shielding ratio coefficient of each surface of the building complex, scattered radiation, direct radiation and total incident radiation according to meteorological parameters, solar data and the building complex model.

[0068] Step S3-3, using the reflection amount calculation unit 303 to calculate the spatial reflection amount according to the proportion value, the shading ratio coefficient, the scattered radiation, the direct radiation and the comprehensive reflection factor.

[0069] Step S3-4, using the comprehensive reflectivity calculation unit 304 to calculate the comprehensive reflectivity according to the spatial reflection amount and the total incident radiation.

[0070] In this embodiment, the greater the comprehensive reflectivity, the greater the reflective ability of the building complex, the weaker the radiant heat accumulation effect, and the less solar radiation stored inside the building complex.

[0071] The following is a corresponding building complex comprehensive reflectivity calculation device 100 constructed according to the existing software and hardware, specifically: based on the Grasshopper platform built into Rhino, the function of the spatial relationship generation module 10 is realized according to MATLAB, the function of the parameter calculation module 20 is realized according to the surface material reflectivity calculation process written according to the Rhino-Grasshopper platform and the Python program and embedded in the Grasshopper platform, and the function of the environment calculation module 30 is realized according to the Honeybee and Ladybug plug-ins in the Grasshopper platform.

[0072] In this embodiment, the building complex comprehensive reflectivity calculation device 100 analyzes and processes the building complexes of three building layouts, namely, the determinant type, the enclosure type and the point group type, and calculates the comprehensive reflectivity corresponding to different seasons.

[0073] Figure 3 It is a schematic diagram of three building complexes in an embodiment of the present invention.

[0074] like Figure 3 As shown, (a1) is a top view of a row-type building complex, (a2) is a three-dimensional schematic diagram of a row-type building complex, (b1) is a top view of an enclosed building complex, (b2) is a three-dimensional schematic diagram of an enclosed building complex, (c1) is a top view of a point-type building complex, and (c2) is a three-dimensional schematic diagram of a point-type building complex.

[0075] The layout parameters of the above-mentioned building complexes are shown in the following table:

[0076]

[0077] The first column in the table above is each building complex, and the second to sixth columns are the building size, building angle, X-direction spacing, Y-direction spacing, and number of buildings in the building complex. For example, the cell in the second row and second column indicates that the building size of the determinant building complex is 10m×30m×30m.

[0078] Figure 4 It is the comprehensive reflectivity corresponding to the three building complexes in each season and each time period in the embodiment of the present invention.

[0079] like Figure 4 As shown, the horizontal axis is time, and it is 8:00, 10:00, 12:00, 14:00 and 16:00 in one day in the four seasons of spring, summer, autumn and winter, respectively, and the vertical axis is the comprehensive reflectivity. In addition, the annual range of the determinant building complex is 0.12, the annual range of the enclosed building complex is 0.18, and the annual range of the point group building complex is 0.17. It can be seen that, except in summer, the point group layout has a stronger ability to weaken the accumulation of solar radiation heat. From the perspective of the annual range, the determinant has a smaller fluctuation range, and the enclosed type has the largest range. The determinant building is still a better solution in architectural design.

[0080] In this embodiment, the range and variance of the corresponding building complex can be further calculated based on the comprehensive reflectivity in each season and each time period, and the comprehensive reflectivity volatility of the building complex can be obtained through the range and variance. The smaller the comprehensive reflectivity volatility, the more stable the radiation environment of the building complex.

[0081] Functions and Effects of the Embodiments

[0082] According to the device and method for calculating the comprehensive reflectivity of a building complex involved in this embodiment, the spatial relationship generation module extracts the spatial related data of a building complex of any building layout, and the parameter calculation module calculates the reflectivity of the building complex, and then the environment calculation module calculates the comprehensive reflectivity of the building complex under the specified environment, thereby realizing the analysis and evaluation of the solar radiation heat environment of the building complex under the specified environment. In short, this method can conveniently, comprehensively and effectively evaluate the solar radiation heat environment of the building complex.

[0083] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for calculating the comprehensive reflectivity of a building complex, for obtaining the comprehensive reflectivity of the building complex according to a target area image of the building complex, building material data, and solar data, characterized in that: include: A spatial relationship generation module is used to process the target area image to obtain building space data and radiation angle coefficient; A parameter calculation module, used to construct a building complex model according to the building space data, and calculate reflectivity data according to the sun position data and the building material data in the sun data in combination with the building complex model; The environment calculation module is used to calculate the comprehensive reflectivity corresponding to the building complex in different scenes according to the existing meteorological parameters, the reflectivity data and the radiation angle coefficient, combined with the building complex model. Wherein, the environment calculation module includes: A reflection factor calculation unit, used to calculate a comprehensive reflection factor according to the reflectivity data and the radiation angle coefficient; A basic data calculation unit, used to calculate the proportion value and shielding ratio coefficient of each surface of the building complex, scattered radiation, direct radiation and total incident radiation according to the meteorological parameters, the solar data and the building complex model; A reflection amount calculation unit, used for calculating the spatial reflection amount according to the proportion value, the shielding ratio coefficient, the scattered radiation, the direct radiation and the comprehensive reflection factor; The comprehensive reflectivity calculation unit is used to calculate the comprehensive reflectivity according to the spatial reflection amount and the total incident radiation.

2. The building complex comprehensive reflectivity calculation device according to claim 1, characterized in that: in, The calculation expression of the comprehensive reflection factor is: a j =1-r j , Where ρ k is the building surface reflectance of the building surface k in the reflectance data, X i，j is the radiation angle coefficient between surface i and surface j, α j is the absorptivity of surface j, R k，j is the comprehensive reflection factor of surface k to surface j.

3. The building complex comprehensive reflectivity calculation device according to claim 1, characterized in that: in, The calculation expression of the spatial reflection amount is: Where Q* is the spatial reflection amount, m is the total number of surfaces of the building complex, and f i is the occlusion ratio coefficient, Q D is the direct radiation, Q d is the scattered radiation, R i is the comprehensive reflection factor corresponding to the reflecting surface i, p i is the percentage value.

4. The building complex comprehensive reflectivity calculation device according to claim 1, characterized in that: in, The calculation expression of the comprehensive reflectivity is: Where R * is the comprehensive reflectivity, Q * is the spatial reflection amount, Q t is the total incident radiation.

5. The building complex comprehensive reflectivity calculation device according to claim 1, characterized in that: in, The proportion value is the ratio of the surface area of ​​the corresponding surface to the total surface area of ​​all the surfaces of the building complex, or the surface area of ​​the corresponding surface.

6. The building complex comprehensive reflectivity calculation device according to claim 1, characterized in that: in, The occlusion ratio coefficient is the ratio of the area of ​​the surface that is occluded to the total area of ​​the surface.

7. The building complex comprehensive reflectivity calculation device according to claim 1, Features: Wherein, the spatial relationship generation module includes: a shadow removal unit, configured to determine whether the target area image has a shadow, and if so, remove the shadow from the target area image to obtain a shadow-free image; if not, use the target area image as the shadow-free image; A denoising unit, configured to perform image denoising on the shadow-free image to obtain a denoised image; A roll angle correction unit, used to determine whether the denoised image needs roll angle correction, and if so, perform roll angle correction on the denoised image to obtain a corrected image; if not, use the denoised image as the corrected image; A data calculation unit is used to calculate the building space data and the radiation angle coefficient according to the corrected image.

8. The building complex comprehensive reflectivity calculation device according to claim 1, characterized in that: in, The reflectivity data includes the reflectivity of surface materials and the reflectivity of building surfaces. The parameter calculation module divides the surface materials of the building complex into porous surfaces, transparent surfaces and opaque surfaces according to the building material data. The porous surface is a permeable and opaque surface material. The transparent surface is a transparent surface material. The opaque surface is a surface material that is not transparent.

9. A method for calculating the comprehensive reflectivity of a building complex, for obtaining the comprehensive reflectivity of the building complex based on a target area image of the building complex, building material data, and solar data, characterized in that: The following steps are involved: Step S1, processing the target area image to obtain building space data and radiation angle coefficient; Step S2, constructing a building complex model according to the building space data, and calculating reflectivity data according to the sun position data and the building material data in the sun data in combination with the building complex model; Step S3, calculating the comprehensive reflectivity corresponding to the building complex in different scenes according to the meteorological parameters, the reflectivity data and the radiation angle coefficient in combination with the building complex model, Wherein, the step S3 includes the following sub-steps: Step S3-1, calculating a comprehensive reflection factor according to the reflectivity data and the radiation angle coefficient; Step S3-2, calculating the proportion value and shielding ratio coefficient of each surface of the building complex, scattered radiation, direct radiation and total incident radiation according to the meteorological parameters, the solar data and the building complex model; Step S3-3, calculating the spatial reflection amount according to the proportion value, the shielding ratio coefficient, the scattered radiation, the direct radiation and the comprehensive reflection factor; Step S3-4, calculating the comprehensive reflectivity according to the spatial reflection amount and the total incident radiation.

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