Meteorological dynamic sand table display system and method based on holographic projection

Abstract

The application discloses a meteorological dynamic sand table display system and method based on holographic projection, relates to the technical field of meteorological dynamic sand table display, and comprises a data acquisition module, a data processing and analysis module, a display effect optimization module and a holographic projection display module; the data acquisition module is used for acquiring device information, scene size, audience coordinate information, geographic information and meteorological data information in real time, storing the acquired device information, audience coordinate information and scene size into a scene database, and storing meteorological data information and geographic information into a projection information database; and the data processing and analysis module.The application solves the problem that the meteorological dynamic sand table based on holographic projection cannot effectively display each area audience in the prior art, realizes real-time adjustment of the angle and brightness of holographic projection according to the positions of different personnel entering the field, and thus improves the display effect of the meteorological dynamic sand table.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of meteorological dynamic sand table display, in particular to a meteorological dynamic sand table display system and method based on holographic projection. BACKGROUND

[0002] With the rapid development of science and technology, the demand for meteorological information display and dissemination is increasing, and traditional meteorological display methods gradually fail to meet people's pursuit of intuitive, vivid and immersive experience. Under such background, meteorological dynamic sand table display system based on holographic projection emerges as the times require.

[0003] Holographic projection technology, as a new three-dimensional imaging technology, brings a new solution to meteorological display. Based on the principle of light interference and diffraction, holographic projection technology can record and reproduce the light wave information of an object, thus presenting a realistic three-dimensional image in the air. Compared with traditional display technology, holographic projection technology has many advantages. First, it can create extremely realistic three-dimensional meteorological scenes. Whether it is the shape of meteorological clouds, the movement trajectory of air flow, or the distribution of precipitation, it can be displayed in a vivid and accurate three-dimensional image in front of the audience, greatly enhancing the intuitiveness and visibility of meteorological information.

[0004] For example, a Chinese patent with publication number CN113223167B, a three-dimensional weather sand table building method and system. The scheme includes determining the latitude and longitude range of the data table, generating a basic three-dimensional terrain model; according to the projection mode of satellite map and topographic map, automatically setting the latitude and longitude locator, so that the meteorological data is accurately mapped to the virtual basic three-dimensional terrain model; configure the data source address and drawing style corresponding to the meteorological data type; according to the meteorological data type, the meteorological data is stored in the corresponding type data pool; according to the type data pool, the meteorological simulation is carried out by using the simulation timeline method; according to the type data pool, the type data pool is released by using the simulation timeline; set the three-dimensional scene roaming mode, carve the observation lens moving path, form the three-dimensional video or view. This scheme establishes a basic three-dimensional terrain model, virtually data of time line and multiple views, and realizes three-dimensional view display of multiple types of meteorological data;

[0005] For example, a Chinese patent with publication number CN103065361B, a three-dimensional island sand table implementation method, characterized in that the method comprises: importing two-dimensional spatial data, elevation data and attribute information of a rendering object; expanding the two-dimensional spatial data of the rendering object through the elevation data to generate three-dimensional data of the rendering object; rendering according to the three-dimensional data of the rendering object; constructing a three-dimensional scene for display according to the three-dimensional data and attribute information of the rendered rendering object. This method greatly reduces the difficulty of implementing a three-dimensional island sand table, while saving a large amount of time and labor costs.

[0006] But in the process of implementing the technical scheme of the embodiments of the application, the applicant finds that the above-mentioned technology at least has the following technical problems:

[0007] The meteorological dynamic sand table is generally placed in a display hall, and a professional person is responsible for operating the display process and simultaneously explaining to the audience. During the opening period, as the outside personnel continuously flow in, the number of audience continuously increases, and the distribution of the audience also changes accordingly. If the audience distribution presents an uneven state, part of the audience will encounter problems such as being difficult to clearly distinguish the details presented in the sand table due to being too close or too far from the meteorological dynamic sand table, or the picture watched is distorted due to a poor viewing angle. The occurrence of these conditions will undoubtedly greatly reduce the viewing experience of the audience, and further negatively affect the display effect of the whole meteorological dynamic sand table, and cannot achieve the expected display target and propagation effect. SUMMARY

[0008] Technical problems solved

[0009] In view of the deficiencies in the prior art, the meteorological dynamic sand table display system and method based on holographic projection are provided, the problem that the meteorological dynamic sand table of holographic projection in the prior art cannot effectively display each area audience is solved, the angle and brightness of holographic projection can be adjusted in real time according to the different personnel positions entering the field, and the display effect of the meteorological dynamic sand table is improved.

[0010] Technical scheme

[0011] To achieve the above object, the present application is implemented by the following technical solutions: The meteorological dynamic sand table display system based on holographic projection comprises a data acquisition module, a data processing and analysis module, a display effect optimization module and a holographic projection display module; the data acquisition module is used for acquiring device information, scene size, audience coordinate information, geographic information and meteorological data information in real time, storing the acquired device information, audience coordinate information and scene size into a scene database, and storing the meteorological data information and geographic information into a projection information database; the data processing and analysis module is used for dividing the scene size into regions to obtain region size information, comprehensively analyzing the region size information and audience coordinate information to obtain audience distribution analysis results, comprehensively analyzing the region size information and device information to obtain distance influence analysis results, comprehensively analyzing the distance influence analysis results and audience distribution analysis results to obtain region influence analysis results; the display effect optimization module is used for comprehensively analyzing the region size information, distance influence analysis results, region influence analysis results, audience distribution analysis results and device information to obtain adjustment and optimization analysis results, wherein the adjustment and optimization analysis results include horizontal angle adjustment analysis results, vertical angle adjustment analysis results and brightness adjustment analysis results, and the device is optimized and adjusted by the acquired horizontal angle adjustment analysis results, vertical angle adjustment analysis results and brightness adjustment analysis results; the holographic projection display module is used for converting the meteorological data in the projection information database into visual dynamic meteorological data for display, converting geographic data into a display sand table, and projecting and displaying the visual dynamic meteorological data and the display sand table by the optimized and adjusted device.

[0012] Further, the device information comprises holographic projection device coordinate information, holographic projection device initial horizontal angle, holographic projection device initial vertical angle, horizontal projection range, vertical projection angle adjustment amount, horizontal projection angle adjustment amount, initial brightness and projection brightness; the holographic projection device coordinate information comprises holographic projection device horizontal axis coordinate position, holographic projection device vertical axis coordinate position and holographic projection device vertical axis coordinate position; the audience distribution information comprises audience horizontal axis position, audience vertical axis position and audience vertical axis position.

[0013] Further, the specific steps of the region division of the scene size, obtaining the region size information, and comprehensively analyzing the region size information and the audience coordinate information to obtain the audience distribution analysis result are as follows: setting the holographic projection device coordinate as a center point, dividing the scene size into a plurality of annular regions, obtaining the inner radius and the outer radius of the divided regions, obtaining the audience quantity of each region, obtaining the maximum audience quantity through screening statistics, obtaining the position coordinate of each audience in each region, performing mean value calculation on each audience position coordinate to obtain the average audience position coordinate, and obtaining the distribution density value through comprehensive calculation on the inner radius, the outer radius, and the audience quantity.

[0014] Further, the specific steps of the region division of the scene size, obtaining the region size information, and comprehensively analyzing the region size information and the audience coordinate information to obtain the audience distribution analysis result are as follows: setting the holographic projection device coordinate as a center point, dividing the scene size into a plurality of annular regions, obtaining the inner radius and the outer radius of the divided regions, obtaining the audience quantity of each region, obtaining the maximum audience quantity through screening statistics, obtaining the position coordinate of each audience in each region, performing mean value calculation on each audience position coordinate to obtain the average audience position coordinate, and obtaining the distribution density value through comprehensive calculation on the inner radius, the outer radius, and the audience quantity. Ei = n * N i Ei represents the region influence value of the i-th region, n represents the total number of regions, N i Ni represents the audience quantity of the i-th region, p i pi represents the distribution density value of the audience in the i-th region, Ni represents the distance influence value of the i-th region, N j Nj represents the audience quantity of the j-th region, p j pi represents the distribution density value of the audience in the i-th region, Nj represents the distance influence value of the j-th region.

[0015] Further, the specific steps of the region division of the scene size, obtaining the region size information, and comprehensively analyzing the region size information and the audience coordinate information to obtain the audience distribution analysis result are as follows: setting the holographic projection device coordinate as a center point, dividing the scene size into a plurality of annular regions, obtaining the inner radius and the outer radius of the divided regions, obtaining the audience quantity of each region, obtaining the maximum audience quantity through screening statistics, obtaining the position coordinate of each audience in each region, performing mean value calculation on each audience position coordinate to obtain the average audience position coordinate, and obtaining the distribution density value through comprehensive calculation on the inner radius, the outer radius, and the audience quantity.

[0016] Further, the horizontal angle adjustment analysis result obtaining step is as follows: the horizontal evaluation value and the vertical influence value are obtained by comprehensively calculating the obtained audience average position coordinates, the holographic projection device coordinate information, the holographic projection device initial horizontal angle, and the holographic projection device initial vertical angle; the horizontal influence value is obtained by comprehensively analyzing the holographic projection device initial horizontal angle, the horizontal projection angle adjustment amount, and the horizontal evaluation value; and the horizontal adjustment value is obtained by comprehensively calculating the horizontal influence value, the holographic projection device initial horizontal angle, the horizontal evaluation value, and the area influence value. In the formula, V represents the horizontal adjustment value, V represents the holographic projection device initial horizontal angle, κ represents the horizontal projection angle adjustment amount, and n represents the total number of areas. a a In the formula, V represents the horizontal adjustment value, V represents the holographic projection device initial horizontal angle, κ represents the horizontal projection angle adjustment amount, and n represents the total number of areas. i In the formula, V represents the horizontal adjustment value, V represents the holographic projection device initial horizontal angle, κ represents the horizontal projection angle adjustment amount, and n represents the total number of areas. i In the formula, V represents the horizontal adjustment value, V represents the holographic projection device initial horizontal angle, κ represents the horizontal projection angle adjustment amount, and n represents the total number of areas.

[0017] Further, the vertical angle adjustment analysis result obtaining step is as follows: the vertical evaluation value is obtained by comprehensively analyzing the holographic projection device initial vertical angle, the vertical projection angle adjustment amount, and the vertical influence value; and the vertical adjustment value is obtained by comprehensively calculating the vertical evaluation value, the holographic projection device initial vertical angle, the vertical influence value, and the area influence value.

[0018] Further, the brightness influence analysis result obtaining method is as follows: the projection range value is obtained by analyzing the horizontal projection range; the brightness influence value is obtained by comprehensively analyzing the horizontal adjustment value and the vertical adjustment value; and the brightness adjustment value is obtained by comprehensively calculating the obtained brightness influence value, the projection range value, the initial brightness, the inner radius, the outer radius, the area audience quantity, and the audience quantity maximum value, and adjusting the brightness of the projection device through the obtained brightness adjustment value.

[0019] Further, the brightness adjustment value obtaining method is as follows: In the formula, L represents the brightness adjustment value, L0 represents the initial brightness, I represents the brightness influence value, r represents the outer radius, r represents the inner radius, R represents the projection range value, N represents the area i audience quantity, and N represents the audience quantity maximum value. i In the formula, L represents the brightness adjustment value, L0 represents the initial brightness, I represents the brightness influence value, r represents the outer radius, r represents the inner radius, R represents the projection range value, N represents the area i audience quantity, and N represents the audience quantity maximum value. b In the formula, L represents the brightness adjustment value, L0 represents the initial brightness, I represents the brightness influence value, r represents the outer radius, r represents the inner radius, R represents the projection range value, N represents the area i audience quantity, and N represents the audience quantity maximum value. o In the formula, L represents the brightness adjustment value, L0 represents the initial brightness, I represents the brightness influence value, r represents the outer radius, r represents the inner radius, R represents the projection range value, N represents the area i audience quantity, and N represents the audience quantity maximum value. i In the formula, L represents the brightness adjustment value, L0 represents the initial brightness, I represents the brightness influence value, r represents the outer radius, r represents the inner radius, R represents the projection range value, N represents the area i audience quantity, and N represents the audience quantity maximum value. p In the formula, L represents the brightness adjustment value, L0 represents the initial brightness, I represents the brightness influence value, r represents the outer radius, r represents the inner radius, R represents the projection range value, N represents the area i audience quantity, and N represents the audience quantity maximum value. i In the formula, L represents the brightness adjustment value, L0 represents the initial brightness, I represents the brightness influence value, r represents the outer radius, r represents the inner radius, R represents the projection range value, N represents the area i audience quantity, and N represents the audience quantity maximum value. m In the formula, L represents the brightness adjustment value, L0 represents the initial brightness, I represents the brightness influence value, r represents the outer radius, r represents the inner radius, R represents the projection range value, N represents the area i audience quantity, and N represents the audience quantity maximum value.

[0020] ​The meteorological dynamic sand table display method based on holographic projection comprises the following steps: step one, obtaining device information, scene size, audience coordinate information, geographic information and meteorological data information, and storing the obtained device information, audience coordinate information and scene size into a scene database, and storing the meteorological data information and geographic information into a projection information database; step two, dividing the scene size into different regions, obtaining region size information, analyzing the audience coordinate information to obtain audience distribution density value and audience average coordinate, and comprehensively analyzing the region size information and device information to obtain distance influence value, and comprehensively analyzing the distance influence value and audience distribution density value to obtain region influence value; step three, comprehensively analyzing the region size information, audience distribution density value, audience average coordinate, distance influence value, device information and region influence value to obtain vertical adjustment value, horizontal adjustment value and brightness adjustment value of the holographic projection device, and adjusting the horizontal angle, vertical angle and brightness of the holographic projection device through the obtained vertical adjustment value, horizontal adjustment value and brightness adjustment value; step four, converting the obtained meteorological data information and geographic information into visual information through the adjusted holographic projection device, and projecting and displaying the visual information.

[0021] Beneficial effects

[0022] The present application has the following beneficial effects:

[0023] (1) The meteorological dynamic sand table display system and method based on holographic projection, by analyzing the average position coordinate of the audience, the coordinate information of the holographic projection device and the initial horizontal and vertical angles of the device, then calculating the horizontal evaluation value and the vertical influence value, to accurately obtain the horizontal and vertical angles that need to be adjusted by the holographic projection device, so that it can be aligned with the average position of the audience, ensuring that the projection picture is displayed in front of the audience at the best viewing angle, reducing image distortion, allowing the audience to see more realistic and clear holographic images, thereby improving the overall visiting experience and improving the attractiveness and educational effect of the meteorological dynamic sand table display. At the same time, compared with the traditional display method, the holographic projection does not need to replace the physical exhibits, saving time and cost.

[0024] (2) The meteorological dynamic sand table display system and method based on holographic projection, by adjusting the brightness of the holographic projection after adjusting the horizontal angle and the vertical angle, can dynamically adapt the brightness according to the difference in light distribution caused by the change in projection angle. It ensures that the audience can clearly see the projection content, while avoiding the situation that the local is too bright or too dark due to the change of angle, affecting the visual experience, ensuring the overall visibility and comfort of the picture, improving the utilization efficiency of brightness resources, reducing unnecessary energy consumption, providing appropriate brightness in the audience dense area, enhancing the display effect of the meteorological dynamic sand table, and optimizing the overall viewing experience and display quality of the audience.

[0025] (3) The meteorological dynamic sand table display system and method based on holographic projection can calculate the distance influence value and the regional influence value of each region by comprehensively analyzing the regional size information and the holographic projection device information. The relative importance between each region and the projection device is accurately evaluated, which helps to optimize resource allocation. By quantifying the regional influence, the display effect and audience participation can be improved, ensuring that the audience can obtain the best viewing experience in each region. At the same time, this data-driven analysis also enhances the education effect of meteorological data for the audience, improves the operation efficiency, and provides support for emergency preparation by analyzing the personnel distribution density, ensuring the safety and smooth progress of the display activities.

[0026] (4) The meteorological dynamic sand table display system and method based on holographic projection can calculate the distance influence value and the regional influence value of each region by comprehensively analyzing the regional size information and the holographic projection device information. The relative importance between each region and the projection device is accurately evaluated, which helps to optimize resource allocation. By quantifying the regional influence, the display effect and audience participation can be improved, ensuring that the audience can obtain the best viewing experience in each region. At the same time, this data-driven analysis also enhances the education effect of meteorological data for the audience, improves the operation efficiency, and provides support for emergency preparation by analyzing the personnel distribution density, ensuring the safety and smooth progress of the display activities.

[0027] Of course, implementing any product of the present application does not necessarily require all the advantages described above to be achieved simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The structure diagram of the meteorological dynamic sand table display system based on holographic projection of the present application;

[0029] Figure 2 The flowchart of the meteorological dynamic sand table display method based on holographic projection of the present application;

[0030] Figure 3 The functional relationship diagram of the number of audience and the audience density value in the present application. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] Please refer to Figure 1The embodiment of the present application provides a technical scheme: a meteorological dynamic sand table display system based on holographic projection, comprising: a data acquisition module, a data processing and analysis module, a display effect optimization module and a holographic projection display module; the data acquisition module is used for acquiring device information, scene size, audience coordinate information, geographic information and meteorological data information in real time, and storing the acquired device information, audience coordinate information and scene size into a scene database, and storing the meteorological data information and geographic information into a projection information database; the data processing and analysis module is used for dividing the scene size into regions to obtain region size information, and comprehensively analyzing the region size information and the audience coordinate information to obtain audience distribution analysis results; comprehensively analyzing the region size information and the device information to obtain distance influence analysis results; comprehensively analyzing the distance influence analysis results and the audience distribution analysis results to obtain region influence analysis results; the display effect optimization module is used for comprehensively analyzing the region size information, the distance influence analysis results, the region influence analysis results, the audience distribution analysis results and the device information to obtain adjustment and optimization analysis results, the adjustment and optimization analysis results including: horizontal angle adjustment analysis results, vertical angle adjustment analysis results and brightness adjustment analysis results, and the device is optimized and adjusted through the acquired horizontal angle adjustment analysis results, vertical angle adjustment analysis results and brightness adjustment analysis results; the holographic projection display module is used for converting the meteorological data in the projection information database into visual dynamic meteorological data for display, and converting the geographic data into a display sand table, and projecting and displaying the visual dynamic meteorological data and the display sand table through the device after optimization and adjustment.

[0033] It is worth noting that the device information includes: holographic projection device coordinate information, initial horizontal angle of holographic projection device, initial vertical angle of holographic projection device, horizontal projection range, vertical projection angle adjustment amount, horizontal projection angle adjustment amount, initial brightness and projection brightness, specifically the initial installation position, vertical angle and horizontal angle of the holographic projection device, and the initial projection brightness of the holographic projection device is acquired through a brightness sensor, and the vertical projection angle adjustment amount and the horizontal projection angle adjustment amount are specifically the standard adjustment steps of the holographic projection device in the vertical angle and the horizontal projection angle; wherein the holographic projection device coordinate information includes the horizontal axis coordinate position of the holographic projection device, the vertical axis coordinate position of the holographic projection device and the vertical axis coordinate position of the holographic projection device; the audience distribution information includes: audience horizontal axis position, audience vertical axis position and audience vertical axis position, specifically the position distribution of the audience on different coordinate axes.

[0034] It is worth mentioning that the specific steps of the scene size region division, obtaining the region size information, and comprehensively analyzing the region size information and the audience coordinate information to obtain the audience distribution analysis result are as follows: setting the holographic projection device coordinate as the center point, dividing the scene size into multiple annular regions, obtaining the inner radius and the outer radius of the divided annular region, the inner radius is the annular region radius closest to the holographic projection device coordinate, and the outer radius is the annular region radius farthest from the holographic projection device coordinate, installing multiple cameras in the exhibition hall, obtaining the number of audiences in each region through the cameras, obtaining the maximum audience number through screening statistics, specifically, in all different regions, the number of audiences in the region with the most audiences is set as the maximum audience number, and the position coordinates of each audience in each region are obtained, the average value of each audience position coordinate is calculated to obtain the average audience position coordinate, specifically, the position of each audience is marked, and the number of audience horizontal axis positions, audience vertical axis positions, and audience vertical axis positions is obtained, then the average value of the audience horizontal axis positions, audience vertical axis positions, and audience vertical axis positions in all regions is calculated to obtain the average value of the horizontal axis positions, vertical axis positions, and vertical axis positions, so that the average position of the audience in the exhibition area can be obtained, and the distribution density value is obtained by comprehensively calculating the inner radius, outer radius, and audience number of the region. In the formula, p i represents the distribution density value of the audience in the i-th region, specifically the density of the audience distribution in each region, π represents the circular constant, which is used to calculate the area of the divided region, r oi represents the inner radius of the i-th region, r ii represents the outer radius of the i-th region, N i represents the number of audiences in the i-th region.

[0035] As Figure 3 shown, in this embodiment, Table 1 is the audience distribution density value corresponding to the region audience number, outer radius, and inner radius, in this embodiment, the region audience number of three regions is mainly collected to obtain the data.

[0036] Table 1: Audience distribution density value corresponding to region audience number, outer radius, and inner radius

[0037]

[0038]

[0039] It should be noted that, in Table 1, the audience distribution density value gradually increases as the number of visitors in the exhibition hall increases, and is changed in real time as the visitors move, the audience distribution density value in Table 1 combines the outer radius, inner radius and the number of visitors in the three areas, lists the values of the number of visitors in the three different areas, outer radius and inner radius, and obtains the audience distribution density value through the formula, the values of these audience distribution density values provide the influence of the audience distribution density value with the change of the number of visitors in different areas, the audience distribution density value comprehensively considers the number of visitors in different areas, outer radius and inner radius, and provides data support for the optimization of the holographic projection weather dynamic display sand table display effect, thereby improving the display effect of the holographic projection weather dynamic display sand table.

[0040] It should be explained that the number of visitors in the area is the number of visitors in the different areas divided, which is obtained by the camera, and the number of visitors in the area is not fixed, and the moving position of the visitors will be divided into different areas, for example, the visitors are initially in the first area, and then they will be divided into the second area as they move out of the first area and enter the second area.

[0041] In the embodiment, by dividing the exhibition hall into different areas and obtaining the personnel distribution density of each area, the exhibition hall can allocate more guide personnel in the area with high personnel distribution density, ensure that the visitors can enjoy perfect supporting services while watching the projection display, and obtain the number of visitors in each area and calculate the average position coordinates of the visitors through the camera, fully consider the actual distribution of the visitors in the exhibition hall, and can provide more accurate data support for the angle adjustment of the holographic projection device according to the personnel distribution in the exhibition hall.

[0042] It is worth noting that the specific steps of comprehensively analyzing the area size information and the device information to obtain the distance influence analysis result, and comprehensively analyzing the distance influence analysis result and the audience distribution analysis result to obtain the area influence analysis result are as follows: the distance between the center of each area and the holographic projection device coordinates is comprehensively calculated to obtain the distance influence value, and the distance influence value is obtained in the following manner: In the formula, The distance influence value of the i-th area is specifically the weight coefficient of the distance between the area i and the projection device, d i The distance between the center of the area i and the holographic projection device coordinates; the number of visitors, the distribution density value and the distance influence value of each area are comprehensively calculated to obtain the area influence value, and the area influence value is obtained in the following manner: In the formula, E iRegion impact value of the i-th region, specifically, the weight of each region, n represents the total number of regions, N i Number of audience in the i-th region, p i Distribution density value of the i-th region, specifically, the distribution density of audience in all regions, Distance impact value of the i-th region, N j Number of audience in the j-th region, p j Distribution density value of the j-th region, specifically, the distribution density of audience in all regions, Distance impact value of the j-th region.

[0043] In the embodiment, by comprehensively analyzing the region size information and the holographic projection device information, the distance impact value and the region impact value of each region can be calculated. The relative importance between each region and the projection device is accurately evaluated, which helps to optimize resource allocation; and by quantifying the region impact, the display effect and audience participation can be improved, ensuring that the audience can obtain the best viewing experience in each region. At the same time, this data-driven analysis also enhances the education effect of meteorological data for the audience, improves the operation efficiency, and provides support for emergency preparation by analyzing the personnel distribution density, ensuring the safety and smooth progress of the display activities.

[0044] It is worth noting that the adjustment optimization analysis result obtaining step is: analyzing the audience average position coordinates, holographic projection device coordinate information, holographic projection device initial horizontal angle, and horizontal projection angle adjustment amount to obtain a horizontal angle adjustment analysis result; the horizontal angle adjustment analysis result obtaining step is as follows: obtaining the horizontal evaluation value and the vertical impact value by comprehensively calculating the obtained audience average position coordinates, holographic projection device coordinate information, holographic projection device initial horizontal angle, and holographic projection device initial vertical angle; the horizontal evaluation value is obtained as follows: K i = arctan 2 (y a -y p , x a -x p )-V; in the formula, arctan 2 is set to calculate the direction angle of the holographic projection device pointing to the audience according to the obtained horizontal axis position mean value, vertical axis position mean value, vertical axis coordinate position of the holographic projection device, and horizontal axis coordinate position of the holographic projection device, K i Horizontal evaluation value of the i-th region, specifically, the horizontal angle that the holographic projection device needs to adjust to align the projection direction with the audience average position, y a Vertical axis position mean value, y p Vertical axis coordinate position of the holographic projection device, x a Horizontal axis position mean value, x prepresents the horizontal axis coordinate position of the holographic projection device, V represents the initial horizontal angle of the holographic projection device, specifically the horizontal direction angle of the device before any adjustment; the vertical influence value is obtained in the following manner: In the formula, arctan 2 set by is used to calculate the direction angle of the holographic projection device in the vertical direction pointing to the audience according to the obtained horizontal axis position average, vertical axis position average and longitudinal axis position average, longitudinal axis coordinate position of the holographic projection device, horizontal axis coordinate position of the holographic projection device and vertical axis coordinate position of the holographic projection device, C i represents the vertical influence value of the i-th region, specifically the vertical angle that the holographic projection device needs to adjust to align the projection direction to the average position of the audience, z a represents the vertical axis position average, z p represents the vertical axis coordinate position of the holographic projection device, x a represents the horizontal axis position average, x p represents the horizontal coordinate of the holographic projection device, y a represents the longitudinal axis position average, y p represents the longitudinal coordinate of the holographic projection device, U represents the initial vertical angle of the holographic projection device; the initial horizontal angle of the holographic projection device, the horizontal projection angle adjustment amount and the horizontal evaluation value are comprehensively analyzed to obtain the horizontal influence value, and the horizontal influence value is obtained in the following manner: In the formula, k a represents the horizontal influence value, specifically the adjustment amount calculated by the change of the horizontal angle, ΔV represents the horizontal projection angle adjustment amount, specifically the adjustment amount obtained through the device usage instruction and official website data and stored in the scene database, which can be directly called through the scene database when needed, V represents the initial horizontal angle of the holographic projection device, n represents the total number of regions, E i represents the region influence value of the i-th region, K i represents the horizontal evaluation value of the i-th region; the horizontal influence value, the initial horizontal angle of the holographic projection device, the horizontal evaluation value and the region influence value are comprehensively calculated to obtain the horizontal adjustment value, which is equal to the specific angle to be adjusted, and the holographic projection device is adjusted to the horizontal direction with the highest audience density through the obtained horizontal adjustment value; the horizontal adjustment value is obtained in the following manner: In the formula, V a represents the horizontal adjustment value, specifically the angle value to be adjusted in the horizontal direction based on the initial horizontal angle of the holographic projection device, after obtaining the horizontal adjustment value, the holographic projection can be automatically adjusted in the horizontal angle through intelligent motor control, and the horizontal angle of the holographic projection device is adjusted through the obtained angle adjustment value, V represents the initial horizontal angle of the holographic projection device, specifically the horizontal direction angle of the device before any adjustment, κa represents the horizontal impact value, specifically the adjustment amount calculated based on the change of the horizontal angle, n represents the total number of regions, E i represents the region impact value of the i-th region, K i represents the i-th horizontal evaluation value.

[0045] It is worth noting that the average position coordinates of the audience, the coordinate information of the holographic projection device, the initial vertical angle of the holographic projection device, and the vertical projection angle adjustment amount are analyzed to obtain the vertical angle adjustment analysis result. The steps for obtaining the vertical angle adjustment analysis result are as follows: the initial vertical angle of the holographic projection device, the vertical projection angle adjustment amount, and the vertical impact value are comprehensively analyzed to obtain the vertical evaluation value. The steps for obtaining the vertical evaluation value are as follows: wherein k β represents the vertical evaluation value, U represents the initial vertical angle of the holographic projection device, n represents the total number of regions, E i represents the region impact value of the i-th region, C i represents the vertical impact value of the i-th region, ΔU represents the vertical projection angle adjustment amount, specifically the adjustment amount obtained through the device usage instructions and official website data and stored in the scene database, which can be directly called through the scene database when needed, and stored in the scene database each time. The vertical evaluation value, the initial vertical angle of the holographic projection device, the vertical impact value, and the region impact value are comprehensively calculated to obtain the vertical adjustment value, which is equal to the specific vertical angle to be adjusted. The vertical adjustment value obtained allows the holographic projection device to adjust in the vertical direction with the highest audience density. The vertical adjustment value can be obtained in the following way: wherein U a represents the vertical adjustment value, specifically the angle value to be adjusted in the vertical direction based on the initial vertical angle of the holographic projection device, and the angle adjustment value obtained through the intelligent motor to adjust the horizontal angle of the holographic projection device, U represents the initial vertical angle of the holographic projection device, κ C represents the vertical evaluation value, n represents the total number of regions, E i represents the region impact value of the i-th region, C i represents the vertical impact value of the i-th region.

[0046] In the embodiment, by analyzing the average position coordinates of the audience, the coordinate information of the holographic projection device, and the initial horizontal and vertical angles of the device, then calculating the horizontal evaluation value and the vertical influence value, the horizontal and vertical angles that need to be adjusted by the holographic projection device are accurately obtained, so that the holographic projection device can be aligned with the average position of the audience, ensuring that the projection picture is displayed in front of the audience at the best viewing angle, reducing image distortion, allowing the audience to see more real and clear holographic images, thereby improving the overall visiting experience and improving the attractiveness and educational effect of the weather dynamic sand table display. At the same time, compared with the traditional display method, the holographic projection does not need to replace the physical exhibits, saving time and cost.

[0047] It is worth noting that the brightness adjustment analysis result is obtained by analyzing the horizontal projection range, the vertical angle adjustment analysis result, the horizontal angle adjustment analysis result, the initial brightness, the inner radius, the outer radius, the number of audience in the region, and the maximum number of audience. The brightness influence analysis result is obtained as follows: by analyzing the horizontal projection range, the projection range value is obtained, and the projection range value is obtained as follows: In the formula, R P represents the projection range value, the projection range value represents the specific horizontal projection range in the scene, π represents the circular constant, and r represents the radius of the projection range; and the horizontal adjustment value and the vertical adjustment value are comprehensively analyzed to obtain the brightness influence value, and the brightness influence value is obtained as follows: b = cosV a cosU a ; in the formula, I b represents the brightness influence value, which is the influence degree of the brightness with the change of the horizontal angle of the holographic projection and the vertical angle of the holographic projection, V a represents the horizontal adjustment value, which is the horizontal angle of the holographic projection after adjustment, U a represents the vertical adjustment value, which is the vertical angle of the holographic projection after adjustment, and the set cos can simulate the intensity change of the light in different directions, so that the brightness adjustment can consider the angle relationship between the audience position and the projection device; and the obtained brightness influence value, projection range value, initial brightness, inner radius and outer radius of the divided region, number of audience in the region, and maximum number of audience are comprehensively calculated to obtain the brightness adjustment value, and the brightness of the projection device is adjusted by the obtained brightness adjustment value. The specific method is to subtract the brightness adjustment value from the initial brightness to obtain the specific adjustment brightness. When the calculated adjustment brightness is positive, the brightness equal to the positive number needs to be increased, if the calculated adjustment brightness is negative, the brightness equal to the negative number needs to be reduced, and if the result is 0, no adjustment is needed. The brightness of the projection device is adjusted by the obtained brightness adjustment value. The brightness adjustment value is obtained as follows: In the formula, L iL0+ Ii represents the brightness adjustment value of the i-th region, the brightness adjustment value can be used to adjust the brightness of the projection, L0 represents the initial brightness, which is specifically measured by using a brightness sensor near the projection device, I b represents the brightness influence value, which is specifically the influence degree of brightness with the change of the horizontal angle of holographic projection and the vertical angle of holographic projection, r o represents the outer radius, r i represents the inner radius, the inner radius is the radius of the annular region closest to the holographic projection device coordinate, and the outer radius is the radius of the annular region away from the holographic projection device coordinate, R p represents the projection range value, N i represents the number of audiences in the i-th region, N m represents the maximum value of the number of audiences, which is specifically the number of audiences of a certain region with the most audiences in the entire projection region.

[0048] In the embodiment, by adjusting the brightness of the holographic projection after adjusting the horizontal angle and the vertical angle, the brightness can be dynamically adapted according to the difference in light distribution caused by the change in projection angle. While ensuring that the audience can clearly see the projection content, the situation that the local is too bright or too dark due to the change in angle and affects the visual experience can be avoided, the overall visibility and comfort of the picture are ensured, the utilization efficiency of brightness resources is improved, unnecessary energy consumption is reduced, appropriate brightness is provided in the audience dense area, the display effect of the meteorological dynamic sand table is enhanced, and the overall viewing experience and display quality of the audience are optimized.

[0049] As shown in Figure 2 , the meteorological dynamic sand table display method based on holographic projection has the following specific steps: step one, obtaining device information, scene size, audience coordinate information, geographic information and meteorological data information, and storing the obtained device information, audience coordinate information and scene size into a scene database, and storing the meteorological data information and geographic information into a projection information database; step two, dividing the scene size into different regions, obtaining region size information, and analyzing the audience coordinate information to obtain the distribution density value of the audience and the average coordinate of the audience, and comprehensively analyzing the region size information and the device information to obtain the distance influence value, and comprehensively analyzing the distance influence value and the distribution density value of the audience to obtain the region influence value; step three, comprehensively analyzing the region size information, the distribution density value of the audience, the average coordinate of the audience, the distance influence value, the device information and the region influence value to obtain the vertical adjustment value, the horizontal adjustment value and the brightness adjustment value of the holographic projection device, and adjusting the horizontal, vertical angle and brightness of the holographic projection device through the obtained vertical adjustment value, horizontal adjustment value and brightness adjustment value; step four, converting the obtained meteorological data information and geographic information into visual information through the adjusted holographic projection device, and projecting and displaying it.

[0050] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other presenters can develop. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such apparent variations are intended to be encompassed by the present application, which is defined by the scope of the following claims and their equivalents. For example, those skilled in the art will recognize that elements from the illustrative embodiments can be interchanged or rearranged (e.g., without departing from the scope of the application) to suit particular situations and / or requirements.

[0051] The preferred embodiments of the application disclosed above are only for helping to explain the present application. The preferred embodiments do not describe all the details of the present application, nor limit the present application to only the specific embodiments described. It is obvious that many modifications and variations can be made according to the contents of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited only by the scope of the claims and their full range of equivalents.

Claims

1. The meteorological dynamic sand table display system based on holographic projection is characterized by: include: Data acquisition module, data processing and analysis module, display effect optimization module and holographic projection display module; The data acquisition module is used to obtain device information, scene size, audience coordinate information, geographic information and meteorological data information in real time, and store the acquired device information, audience coordinate information and scene size in the scene database, and store the meteorological data information and geographic information in the projection information database; The data processing and analysis module is used to divide the scene size into regions, obtain region size information, and conduct a comprehensive analysis of the region size information and audience coordinate information to obtain audience distribution analysis results; Comprehensively analyze the area size information and equipment information to obtain the distance impact analysis results; The distance impact analysis results are combined with the audience distribution analysis results to obtain the regional impact analysis results; The display effect optimization module is used to comprehensively analyze the area size information, distance impact analysis results, area impact analysis results, audience distribution analysis results, and device information to obtain adjustment optimization analysis results. The adjustment optimization analysis results include: horizontal angle adjustment analysis results, vertical angle adjustment analysis results, and brightness adjustment analysis results. The equipment is optimized and adjusted based on the obtained horizontal angle adjustment analysis results, vertical angle adjustment analysis results, and brightness adjustment analysis results. A holographic projection display module is used to convert meteorological data in the projection information database into visual dynamic meteorological data for display, and to convert geographic data into a display sand table. The visual dynamic meteorological data and the display sand table are projected and displayed through optimized and adjusted equipment; The steps for obtaining the horizontal angle adjustment analysis result are as follows: A horizontal evaluation value and a vertical impact value are obtained by comprehensively calculating the obtained average position coordinates of the audience, the coordinate information of the holographic projection device, the initial horizontal angle of the holographic projection device, and the initial vertical angle of the holographic projection device; the initial horizontal angle of the holographic projection device, the horizontal projection angle adjustment amount, and the horizontal evaluation value are comprehensively analyzed to obtain a horizontal impact value; the horizontal impact value, the initial horizontal angle of the holographic projection device, the horizontal evaluation value, and the regional impact value are comprehensively calculated to obtain a horizontal adjustment value; The steps for obtaining the vertical angle adjustment analysis result are as follows: Comprehensively analyzing the initial vertical angle of the holographic projection device, the vertical projection angle adjustment amount, and the vertical impact value to obtain a vertical evaluation value, and comprehensively calculating the vertical evaluation value, the initial vertical angle of the holographic projection device, the vertical impact value, and the regional impact value to obtain a vertical adjustment value; The brightness impact analysis results are obtained as follows: By analyzing the horizontal projection range, the projection range value is obtained, and the horizontal adjustment value and the vertical adjustment value are comprehensively analyzed to obtain the brightness impact value. The obtained brightness impact value, projection range value, initial brightness, inner radius, outer radius, number of audiences in the divided area and the maximum number of audiences are comprehensively calculated to obtain the brightness adjustment value, and the brightness of the projection device is adjusted according to the obtained brightness adjustment value.

2. The meteorological dynamic sand table display system based on holographic projection according to claim 1 is characterized in that: The device information includes: coordinate information of the holographic projection device, the initial horizontal angle of the holographic projection device, the initial vertical angle of the holographic projection device, the horizontal projection range, the vertical projection angle adjustment amount, the horizontal projection angle adjustment amount, the initial brightness, and the projection brightness; Holographic projection device coordinate information, including: the horizontal axis coordinate position of the holographic projection device, the vertical axis coordinate position of the holographic projection device, and the vertical axis coordinate position of the holographic projection device; Audience distribution information includes: audience horizontal axis position, audience vertical axis position, and audience vertical axis position.

3. The meteorological dynamic sand table display system based on holographic projection according to claim 2 is characterized in that: The specific steps of dividing the scene size into regions to obtain region size information, and comprehensively analyzing the region size information and audience coordinate information to obtain audience distribution analysis results are as follows: The coordinates of the holographic projection device are set as the center point, and the scene size is divided into multiple annular areas. The inner radius and outer radius of the divided areas are obtained, and the number of spectators in each area is obtained. The maximum number of spectators is obtained through screening statistics, and the position coordinates of each spectator in each area are obtained. The mean of each spectator position coordinate is calculated to obtain the average position coordinate of the audience. The distribution density value is obtained by comprehensively calculating the inner radius, outer radius and number of spectators in the area.

4. The meteorological dynamic sand table display system based on holographic projection according to claim 3 is characterized by: The specific steps of comprehensively analyzing the area size information and the device information to obtain the distance impact analysis result; and comprehensively analyzing the distance impact analysis result and the audience distribution analysis result to obtain the area impact analysis result are as follows: Comprehensively calculate the distance between the center of each area and the coordinates of the holographic projection device to obtain the distance impact value, and comprehensively calculate the number of audiences, distribution density value and distance impact value of each area to obtain the regional impact value; The regional influence value is obtained as follows: Where, E i represents the regional influence value of the i-th region, n represents the total number of regions, N i represents the number of viewers in the i-th region, p i represents the distribution density of the audience in the i-th area, Indicates the distance influence value of the i-th region, N j represents the number of viewers in the jth region, p j represents the distribution density value of the jth region, Represents the distance influence value of the jth region.

5. The meteorological dynamic sand table display system based on holographic projection according to claim 4 is characterized in that: The steps for obtaining the adjustment optimization analysis results are: Analyze the average position coordinates of the audience, the coordinate information of the holographic projection device, the initial horizontal angle of the holographic projection device, and the horizontal projection angle adjustment amount to obtain a horizontal angle adjustment analysis result; Analyze the average position coordinates of the audience, the coordinate information of the holographic projection device, the initial vertical angle of the holographic projection device, and the vertical projection angle adjustment amount to obtain a vertical angle adjustment analysis result; The horizontal projection range, vertical angle adjustment analysis results, horizontal angle adjustment analysis results, initial brightness, inner radius, outer radius, number of regional viewers and maximum number of viewers are analyzed to obtain the brightness adjustment analysis results.

6. The meteorological dynamic sand table display system based on holographic projection according to claim 1 is characterized in that: The method for obtaining the level adjustment value is as follows: Where V a represents the horizontal adjustment value, V represents the initial horizontal angle of the holographic projection device, κ a represents the horizontal impact value, n represents the total number of regions, E i represents the regional influence value of the i-th region, K i Represents the evaluation value of the i-th level.

7. The meteorological dynamic sand table display system based on holographic projection according to claim 1 is characterized in that: The brightness adjustment value is obtained as follows: Where, L i Indicates the brightness adjustment value of the i-th region, L0 represents the initial brightness, I b Indicates the brightness impact value, r o Represents the outer radius, r i Indicates the inner radius, R p Indicates the projection range value, N i represents the number of viewers in region i, N m Indicates the maximum number of viewers.

8. A meteorological dynamic sand table display method based on holographic projection, applied to a meteorological dynamic sand table display system based on holographic projection according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Obtain device information, scene size, viewer coordinate information, geographic information, and meteorological data information, and store the obtained device information, viewer coordinate information, and scene size in a scene database, and store the meteorological data information and geographic information in a projection information database; Step 2: Divide the scene size into different areas, obtain area size information, analyze the audience coordinate information, obtain the audience distribution density value and the average coordinate of the audience, and comprehensively analyze the area size information and device information to obtain the distance impact value. Comprehensively analyze the distance impact value and the audience distribution density value to obtain the area impact value; Step 3: Comprehensively analyze the area size information, audience distribution density, average audience coordinates, distance impact value, device information, and area impact value to obtain vertical adjustment values, horizontal adjustment values, and brightness adjustment values ​​for the holographic projection device, and adjust the horizontal and vertical angles and brightness of the holographic projection device according to the obtained vertical adjustment values, horizontal adjustment values, and brightness adjustment values; Step 4: The acquired meteorological data and geographic information are converted into visual information through the adjusted holographic projection equipment, and then projected and displayed.

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