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

Abstract

The invention discloses a meteorological dynamic sand table display system and method based on holographic projection, and relates to the technical field of meteorological dynamic sand table display, and the system comprises a data collection 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 equipment information, scene size, audience coordinate information, geographic information and meteorological data information in real time, storing the acquired equipment information, audience coordinate information and scene size in a scene database, and storing the meteorological data information and geographic information in a projection information database; and a data processing analysis module. According to the meteorological dynamic sand table, the problem that the holographic projection meteorological dynamic sand table in the prior art cannot effectively display audiences in each area is solved, and the angle and brightness of holographic projection can be adjusted in real time according to the positions of different persons entering the field, so that the display effect of the meteorological dynamic sand table is improved.

Description

Technical Field

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

[0002] With the rapid development of science and technology, the demand for display and dissemination of meteorological information is increasing, and traditional meteorological display methods are gradually unable to meet people's pursuit of intuitive, vivid and immersive experience. In this context, the meteorological dynamic sand table display system based on holographic projection came into being.

[0003] As an emerging three-dimensional imaging technology, holographic projection technology has brought 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 objects, thereby presenting realistic three-dimensional images in the air. Compared with traditional display technology, holographic projection technology has many significant advantages. First of all, it can create extremely realistic three-dimensional meteorological scenes. Whether it is the shape of meteorological clouds, the movement trajectory of airflow, or the distribution of precipitation, it can be displayed in front of the audience in a vivid and accurate three-dimensional image, greatly enhancing the intuitiveness and visibility of meteorological information.

[0004] For example, a Chinese patent with publication number CN113223167B is a method and system for building a three-dimensional weather sand table. The solution includes determining the longitude and latitude range of the data table to generate a basic three-dimensional terrain model; automatically setting the longitude and latitude locator according to the projection method of the satellite map and the terrain map, so that the meteorological data is accurately mapped to the virtual basic three-dimensional terrain model; configuring the data source address and drawing style corresponding to the meteorological data type; storing the meteorological data in the corresponding type data pool according to the meteorological data corresponding to the meteorological data type; performing meteorological simulation according to the type data pool using the simulation timeline method; releasing the type data pool using the simulation timeline according to the type data pool; setting the three-dimensional scene roaming mode, engraving the observation lens movement path, and forming a three-dimensional video or view. The solution establishes a basic three-dimensional terrain model, performs data virtualization of the timeline and multiple views, and realizes the three-dimensional view display of multiple types of meteorology;

[0005] For example, a Chinese patent with publication number CN103065361B, a method for realizing a three-dimensional island sand table, is characterized in that the method includes: importing the two-dimensional spatial data, elevation data and attribute information of the rendering object; expanding the two-dimensional spatial data of the rendering object through the elevation data to generate the 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 realizing a three-dimensional island sand table, while saving a lot of time and labor costs.

[0006] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the present application found that the above technology has at least the following technical problems:

[0007] The meteorological dynamic sand table is generally placed in the exhibition hall, and professionals are responsible for operating the display process and explaining it to the audience at the same time. During the opening period, with the continuous influx of outsiders, the number of visitors continues to increase, and their distribution will change accordingly. If the audience distribution is uneven, some viewers will encounter problems such as being too close or too far away from the meteorological dynamic sand table, making it difficult to clearly distinguish the details presented in the sand table; or because of the poor viewing angle, the viewed picture is deformed. The emergence of these situations will undoubtedly greatly reduce the audience's viewing experience, and then have a negative impact on the display effect of the entire meteorological dynamic sand table, and fail to achieve the expected display goals and communication effects. Summary of the invention

[0008] Technical issues solved

[0009] In view of the shortcomings of the prior art, the present invention provides a meteorological dynamic sand table display system and method based on holographic projection, which solves the problem that the meteorological dynamic sand table with holographic projection in the prior art cannot effectively display the weather to the audience in each area, and realizes the ability to adjust the angle and brightness of the holographic projection in real time according to the positions of different people entering the venue, thereby improving the display effect of the meteorological dynamic sand table.

[0010] Technical Solution

[0011] To achieve the above objectives, the present invention is implemented through the following technical solutions: a meteorological dynamic sand table display system based on holographic projection, including: 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 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 a scene database, and store the meteorological data information and geographic information in a projection information database; the data processing and analysis module is used to divide the scene size into regions to obtain regional size information, and comprehensively analyze the regional size information and audience coordinate information to obtain audience distribution analysis results; comprehensively analyze the regional size information and device information to obtain distance impact analysis results; The impact analysis results and the audience distribution analysis results are comprehensively analyzed to obtain the regional impact analysis results; the display effect optimization module is used to comprehensively analyze the regional size information, distance impact analysis results, regional impact analysis results, audience distribution analysis results and equipment information to obtain the 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, and the equipment is optimized and adjusted by obtaining the horizontal angle adjustment analysis results, vertical angle adjustment analysis results and brightness adjustment analysis results; the holographic projection display module is used to convert the meteorological data in the projection information database into visual dynamic meteorological data for display, and convert the geographic data into a display sand table, and the visual dynamic meteorological data and the display sand table are projected and displayed through the optimized and adjusted equipment.

[0012] Furthermore, 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; the coordinate information of the holographic projection device 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: the horizontal axis position of the audience, the vertical axis position of the audience and the vertical axis position of the audience.

[0013] Furthermore, the specific steps of dividing the scene size into regions, obtaining region size information, and comprehensively analyzing the region size information and audience coordinate information to obtain audience distribution analysis results are as follows: setting the coordinates of the holographic projection device to the center point, dividing the scene size into multiple annular regions, obtaining the inner radius and outer radius of the divided regions, obtaining the number of audiences in each region, obtaining the maximum number of audiences through screening statistics, and obtaining the position coordinates of each audience in each region, performing mean calculation on the position coordinates of each audience to obtain the average position coordinates of the audience, and obtaining the distribution density value by comprehensively calculating the inner radius, outer radius and number of audiences in the region.

[0014] Furthermore, the specific steps of comprehensively analyzing the area size information and the device information to obtain the distance impact analysis result; comprehensively analyzing the distance impact analysis result and the audience distribution analysis result to obtain the area impact analysis result are as follows: comprehensively calculating the distance between the center of each area and the coordinates of the holographic projection device to obtain the distance impact value, comprehensively calculating the number of audiences, distribution density value and distance impact value of each area to obtain the area impact value; the method of obtaining the area impact value is as follows: In the formula, 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 ith region, p i represents the distribution density of the audience in the i-th area, represents 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.

[0015] Furthermore, the step of obtaining the adjustment optimization analysis result is: analyzing 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 the horizontal angle adjustment analysis result; analyzing 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 the vertical angle adjustment analysis result; 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 audiences in the area, and the maximum number of audiences to obtain the brightness adjustment analysis result.

[0016] Further, the steps for obtaining the horizontal angle adjustment analysis result are as follows: the horizontal evaluation value and the vertical influence 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 the horizontal influence value; the horizontal influence value, the initial horizontal angle of the holographic projection device, the horizontal evaluation value, and the regional influence value are comprehensively calculated to obtain the horizontal adjustment value; the horizontal adjustment value is obtained 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 ith region, K i Represents the i-th level evaluation value.

[0017] Furthermore, the steps for obtaining the vertical angle adjustment analysis results are as follows: comprehensively analyzing the initial vertical angle of the holographic projection device, the vertical projection angle adjustment amount and the vertical influence 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 influence value and the regional influence value to obtain a vertical adjustment value.

[0018] Furthermore, the brightness impact analysis result is obtained as follows: by analyzing the horizontal projection range to obtain the projection range value, and comprehensively analyzing the horizontal adjustment value and the vertical adjustment value to obtain the brightness impact value, and comprehensively calculating the obtained brightness impact value, projection range value, initial brightness, inner radius of the divided area, outer radius, number of viewers in the area and maximum number of viewers to obtain the brightness adjustment value, and adjusting the brightness of the projection device according to the obtained brightness adjustment value.

[0019] Furthermore, the brightness adjustment value is obtained as follows: Where, L i represents the brightness adjustment value of the i-th area, L0 represents the initial brightness, I b Represents the brightness impact value, r o Represents the outer radius, r i Indicates the inner radius, R p Represents the projection range value, N i represents the number of viewers in region i, N m Indicates the maximum number of viewers.

[0020] A meteorological dynamic sand table display method based on holographic projection includes the following steps: step 1, 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 in a scene database, and storing the meteorological data information and geographic information in a projection information database; step 2, dividing the scene size into different areas, and obtaining area size information, analyzing the audience coordinate information at the same time, obtaining the audience distribution density value and the audience average coordinate, and comprehensively analyzing the area size information and the device information to obtain the distance influence value, and comprehensively analyzing the distance influence value and the audience distribution density value to obtain the area influence value; step 3, comprehensively analyzing the area size information, the audience distribution density value, the audience average coordinate, the distance influence value, the device information and the area 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 by the obtained vertical adjustment value, horizontal adjustment value and brightness adjustment value; step 4, converting the obtained meteorological data information and geographic information into visual information by the adjusted holographic projection device, and projecting and displaying it.

[0021] Beneficial Effects

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

[0023] (1) The meteorological dynamic sand table display system and method based on holographic projection analyzes 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, and then calculates the horizontal evaluation value and the vertical impact value, so as to accurately obtain the horizontal and vertical angles that the holographic projection device needs to adjust, so that it can be aligned with the average position of the audience, ensuring that the projected image is displayed in front of the audience at the best viewing angle, reducing image deformation, and allowing the audience to see a more realistic and clear holographic image, thereby improving the overall visiting experience and enhancing the attractiveness and educational effect of the meteorological dynamic sand table display. At the same time, compared with traditional display methods, holographic projection does not require the replacement of physical exhibits, saving time and cost.

[0024] (2) The meteorological dynamic sand table display system and method based on holographic projection can dynamically adapt the brightness according to the light distribution difference caused by the change of projection angle by synchronously adjusting the brightness of the holographic projection after adjusting the horizontal angle and vertical angle. While ensuring that the audience can clearly see the projected content, it can avoid the situation where the visual experience is affected by the local overbrightness or overdarkness caused by the change of angle, ensure the overall visibility and comfort of the picture, improve the utilization efficiency of brightness resources, reduce unnecessary energy consumption, and provide appropriate brightness in areas with dense audiences, enhance the display effect of the meteorological dynamic sand table, and optimize the audience's overall viewing experience and display quality.

[0025] (3) The meteorological dynamic sand table display system and method based on holographic projection can calculate the distance impact value and regional impact value of each area by comprehensively analyzing the regional size information and the holographic projection equipment information. It accurately evaluates the relative importance between each area and the projection equipment to help optimize resource allocation; and by quantifying the regional influence, it can improve the display effect and audience participation, ensuring that the audience can get the best viewing experience in each area. At the same time, this data-driven analysis also enhances the educational effect of meteorological data for the audience, improves operational efficiency, and provides support for emergency preparedness by analyzing the distribution density of personnel, 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 divides the exhibition hall into different areas and obtains the population distribution density in each area, so that the exhibition hall can allocate more guides in areas with high population density, ensuring that the audience can enjoy complete supporting services while watching the projection display. The number of audiences in each area is obtained by the camera and the average position coordinates of the audience are calculated, which fully considers the actual distribution of the audience in the exhibition hall. It can provide more accurate data support for the angle adjustment of the holographic projection equipment according to the distribution of people in the exhibition hall.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the meteorological dynamic sand table display system based on holographic projection of the present invention;

[0029] Figure 2 It is a flow chart of the meteorological dynamic sand table display method based on holographic projection of the present invention;

[0030] Figure 3 It is a schematic diagram of the functional relationship between the number of audiences and the audience density value in the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1The embodiment of the present invention provides a technical solution: 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 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 a scene database, and store the meteorological data information and geographic information in a projection information database; the data processing and analysis module is used to divide the scene size into regions to obtain region size information, and comprehensively analyze the region size information and audience coordinate information to obtain audience distribution analysis results; comprehensively analyze the region size information and device information to obtain distance impact analysis results; and comprehensively analyze the distance impact analysis results. The results are comprehensively analyzed with the audience distribution analysis results to obtain the regional impact analysis results; the display effect optimization module is used to comprehensively analyze the regional size information, distance impact analysis results, regional impact analysis results, audience distribution analysis results and equipment information to obtain the 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, and the equipment is optimized and adjusted by obtaining the horizontal angle adjustment analysis results, vertical angle adjustment analysis results and brightness adjustment analysis results; the holographic projection display module is used to convert the meteorological data in the projection information database into visual dynamic meteorological data for display, and convert the geographic data into a display sand table, and the visual dynamic meteorological data and the display sand table are projected and displayed through the optimized and adjusted equipment.

[0033] It is worth mentioning 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, which are 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 obtained through the brightness sensor. The vertical projection angle adjustment amount and the horizontal projection angle adjustment amount are specifically the standard adjustment steps of the vertical angle and the horizontal projection angle of the holographic projection device; wherein, the coordinate information of the holographic projection device 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: the horizontal axis position of the audience, the vertical axis position of the audience and the vertical axis position of the audience, which is specifically to obtain the position distribution of the audience on different coordinate axes.

[0034] It is worth noting that the specific steps of dividing the scene size into regions, obtaining regional size information, and comprehensively analyzing the regional size information and audience coordinate information to obtain the audience distribution analysis results are as follows: the coordinates of the holographic projection device are set as the center point, the scene size is divided into multiple annular regions, and the inner radius and outer radius of the divided annular regions are obtained, the inner radius is the radius of the annular region closest to the coordinates of the holographic projection device, and the outer radius is the radius of the annular region far away from the coordinates of the holographic projection device, multiple cameras are installed in the exhibition hall, the number of spectators in each area is obtained through the cameras, and the maximum number of spectators is obtained through screening statistics, specifically, the number of spectators in the area with the largest number of spectators in all different areas. The number of audiences is set as the maximum number of audiences, and the position coordinates of each audience in each area are obtained, and the average position coordinates of each audience position are calculated to obtain the average position coordinates of the audience. 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 are obtained. Then, the horizontal axis positions, audience vertical axis positions and audience vertical axis positions of the audiences in all areas are averaged to obtain the horizontal axis position mean, the vertical axis position mean and the vertical axis position mean, so as to obtain the average position of the audience in the exhibition area, and the distribution density value is obtained by comprehensively calculating the inner radius, outer radius and number of audiences in the area; the distribution density value is obtained as follows: In the formula, p i represents the distribution density of the audience in the ith area, specifically, the distribution density of the audience in each area. π represents the pi, and the set pi is used to calculate the area of ​​the divided area. oi represents the inner radius of the ith region, r ii represents the outer radius of the ith region, N i represents the number of viewers in the i-th region.

[0035] like Figure 3 As shown, in this embodiment, Table 1 shows the audience distribution density values ​​corresponding to the regional audience number, outer radius and inner radius. In this embodiment, the data obtained by focusing on collecting the regional audience number of three areas.

[0036] Table 1 Audience distribution density values ​​corresponding to the number of regional audiences, outer radius and inner radius

[0037]

[0038]

[0039] It should be noted that in Table 1, the audience distribution density value gradually increases with the increase in the number of visitors in the exhibition hall, and changes in real time with the movement of visitors in the exhibition hall. The audience distribution density value in Table 1 combines the outer radius, inner radius and number of regional audiences in the three areas for analysis, lists the values ​​of the number of regional audiences, outer radius and inner radius in the three different areas, and obtains the audience distribution density value through the formula. The values ​​of these audience distribution density values ​​provide the impact of the change of the number of visitors in different areas on the audience distribution density value. The audience distribution density value comprehensively considers the number of regional audiences, outer radius and inner radius in different areas, and provides data support for the optimization of the display effect of the holographic projection meteorological dynamic display sand table, thereby improving the display effect of the holographic projection meteorological dynamic display sand table.

[0040] It should be explained that the number of regional audiences is the number of audiences in different divided areas, which is obtained through cameras, and the number of audiences in an area is not fixed. As the audience moves, they will be divided into different areas. For example, if the audience is initially in the first area, and as the audience moves away from the first area and enters the second area, they will be divided into the second area.

[0041] In this embodiment, by dividing the exhibition hall into different areas and obtaining the population density in each area, the exhibition hall can assign more guides to areas with high population density to ensure that the audience can enjoy complete supporting services while watching the projection display. The number of audiences in each area is obtained by the camera and the average position coordinates of the audience are calculated. The actual distribution of the audience in the exhibition hall is fully considered, and more accurate data support can be provided for the angle adjustment of the holographic projection equipment based on the distribution of people in the exhibition hall.

[0042] It is worth noting that the distance impact analysis result is obtained by comprehensively analyzing the area size information and the device information, and the distance impact analysis result is comprehensively analyzed with the audience distribution analysis result to obtain the specific steps of the area impact analysis result as follows: the distance between the center of each area and the coordinates of the holographic projection device is comprehensively calculated to obtain the distance impact value. The distance impact value is obtained as follows: In the formula, Indicates the distance influence value of the i-th region, specifically the weight coefficient of the distance between region i and the projection device, d i Indicates the distance between the center of area i and the coordinates of the holographic projection device; the number of viewers, distribution density value and distance impact value of each area are comprehensively calculated to obtain the regional impact value. The regional impact value is obtained as follows: In the formula, E irepresents the regional influence value of the i-th region, specifically the weight of each region, n represents the total number of regions, N i represents the number of viewers in the ith region, p i represents the distribution density of the audience in the i-th area, represents 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, the distribution density of specific audiences in all regions, Represents the distance influence value of the jth region.

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

[0044] It is worth noting that the steps for obtaining the adjustment optimization analysis result are as follows: analyzing 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 the horizontal angle adjustment analysis result; the steps for obtaining the horizontal angle adjustment analysis result are as follows; the horizontal evaluation value and the vertical influence 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 horizontal evaluation value is obtained as follows: K i =arctan 2(y a -y p , x a -x p )-V; wherein, 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, vertical axis position mean, vertical axis coordinate position of the holographic projection device, and horizontal axis coordinate position of the holographic projection device, K i represents the horizontal evaluation value of the i-th area, specifically the horizontal angle that the holographic projection device needs to adjust to align the projection direction with the average position of the audience, y a Indicates the mean of the vertical axis position, y p Indicates the vertical axis coordinate position of the holographic projection device, x a represents the mean of the horizontal axis position, x pIndicates the horizontal axis coordinate position of the holographic projection device, V indicates the initial horizontal angle of the holographic projection device, specifically the horizontal angle of the device before any adjustment; the vertical impact value is obtained as follows: In the formula, arctan 2 is set to calculate the direction angle of the holographic projection device pointing to the audience in the vertical direction according to the obtained horizontal axis position mean, vertical axis position mean and vertical axis position mean and the vertical axis coordinate position of the holographic projection device, the horizontal axis coordinate position of the holographic projection device and the vertical axis coordinate position of the holographic projection device, C i represents the vertical impact value of the ith region, specifically the vertical angle that the holographic projection device needs to adjust to align the projection direction with the average position of the audience, z a Represents the mean vertical axis position, z p Indicates the vertical axis coordinate position of the holographic projection device, x a represents the mean of the horizontal axis position, x p Represents the horizontal coordinate of the holographic projection device, y a Indicates the mean of the vertical axis position, y p represents the ordinate of the holographic projection device, and 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 as follows: The horizontal influence value is obtained as follows: In the formula, k a It represents the horizontal impact value, which is the adjustment amount calculated by the change of the horizontal angle. ΔV represents the horizontal projection angle adjustment amount. The adjustment amount is obtained through the device instructions and official website data and stored in the scene database. It 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 regional influence value of the ith region, K i represents the horizontal evaluation value of the i-th area; the horizontal influence value, the initial horizontal angle of the holographic projection device, the horizontal evaluation value and the regional influence value are comprehensively calculated to obtain the horizontal adjustment value, which is equal to the specific angle required for adjustment. The obtained horizontal adjustment value is used to adjust the holographic projection device to the horizontal direction with the highest audience density; the horizontal adjustment value is obtained as follows: Where V a represents the horizontal adjustment value, specifically, the angle value required to be adjusted in the horizontal direction based on the initial horizontal angle of the holographic projection device. After the horizontal adjustment value is obtained, the holographic projection can be automatically adjusted to the horizontal angle by controlling the intelligent motor. The horizontal angle of the holographic projection device is adjusted by the obtained angle adjustment value. V represents the initial horizontal angle of the holographic projection device, specifically, the horizontal angle of the device before any adjustment. κa represents the horizontal impact value, which is the adjustment amount calculated by the change of the horizontal angle. n represents the total number of regions. E i represents the regional influence value of the ith region, K i Represents the i-th level evaluation value.

[0045] It is worth noting that the vertical angle adjustment analysis result is obtained by analyzing 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; 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 influence value are comprehensively analyzed to obtain the vertical evaluation value, and the steps for obtaining the vertical evaluation value are as follows: In the formula, 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 regional influence value of the ith region, C i Indicates the vertical influence value of the ith area, ΔU indicates the vertical projection angle adjustment amount, which is obtained through the device instructions and official website data and stored in the scene database. It 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 influence value and the regional influence value are comprehensively calculated to obtain the vertical adjustment value, which is equal to the specific vertical angle to be adjusted. Through the obtained vertical adjustment value, the holographic projection device is adjusted to the vertical direction with the highest audience density; the vertical adjustment value is obtained as follows: Where U a represents the vertical adjustment value, specifically, the angle value required to be adjusted along the vertical direction based on the initial vertical angle of the holographic projection device. The horizontal angle of the holographic projection device is adjusted by the intelligent motor through the obtained angle adjustment value. 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 regional influence value of the ith region, C i Represents the vertical influence value of the ith region.

[0046] In this 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, and then calculating the horizontal evaluation value and the vertical impact value, the horizontal and vertical angles that need to be adjusted by the holographic projection device are accurately obtained so that it can be aligned with the average position of the audience, ensuring that the projected image is displayed in front of the audience at the best viewing angle, reducing image deformation, and allowing the audience to see a more realistic and clear holographic image, thereby enhancing the overall visiting experience and increasing the attractiveness and educational effect of the meteorological dynamic sand table display. At the same time, compared with traditional display methods, holographic projection does not require the replacement of 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, vertical angle adjustment analysis result, horizontal angle adjustment analysis result, initial brightness, inner radius, outer radius, number of regional audiences and maximum number of audiences; the brightness impact 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 pi, 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 impact value, and the brightness impact value is obtained as follows: b =cosV a cosU a Where, I b Represents the brightness impact value, specifically the degree of influence on the brightness as the horizontal angle and vertical angle of the holographic projection change, V a Indicates the horizontal adjustment value, specifically the horizontal angle of the holographic projection after adjustment, U a Represents the vertical adjustment value, specifically the vertical angle of the adjusted holographic projection. The set cos can simulate the intensity change of light in different directions, so that the brightness adjustment can take into account the angular relationship between the audience position and the projection device; and the acquired brightness influence value, projection range value, initial brightness, inner radius of the divided area, outer radius, number of regional audiences and maximum number of audiences 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 adjusted brightness. When the calculated adjusted brightness is a positive number, it is necessary to increase the brightness equal to the positive number. If the calculated adjusted brightness is a negative number, it is necessary to reduce the brightness equal to the negative number. If the result is 0, no adjustment is required, and the brightness of the projection device is adjusted by the obtained brightness adjustment value. The brightness adjustment value is obtained as follows: Where, L irepresents the brightness adjustment value of the i-th area, which can be used to adjust the brightness of the projection. L0 represents the initial brightness, which is measured by a brightness sensor near the projection device. I b Represents the brightness impact value, specifically the degree of influence on brightness as the horizontal angle and vertical angle of the holographic projection change, r o Represents the outer radius, r i Indicates the inner radius. The inner radius is the radius of the annular area closest to the coordinates of the holographic projection device. The outer radius is the radius of the annular area far away from the coordinates of the holographic projection device. R p Represents the projection range value, N i represents the number of viewers in region i, N m Indicates the maximum number of viewers, specifically the number of viewers in a certain area with the largest number of viewers in the entire projection area.

[0048] In this embodiment, by adjusting the brightness of the holographic projection after adjusting the horizontal and vertical angles, the brightness can be dynamically adapted according to the light distribution differences caused by the change in projection angle. While ensuring that the audience can clearly see the projected content, it can avoid the situation where the visual experience is affected by local overbrightness or overdarkness caused by the change in angle, ensure the overall visibility and comfort of the picture, improve the utilization efficiency of brightness resources, reduce unnecessary energy consumption, and provide appropriate brightness in areas with dense audiences, enhance the display effect of the dynamic weather sand table, and optimize the overall viewing experience and display quality of the audience.

[0049] like Figure 2 As shown, the meteorological dynamic sand table display method based on holographic projection has the following specific steps: Step 1, 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 in the scene database, and storing the meteorological data information and geographic information in the projection information database; Step 2, dividing the scene size into different areas, and obtaining area size information, analyzing the audience coordinate information at the same time, obtaining the audience distribution density value and the audience average coordinate, and comprehensively analyzing the area size information and the device information to obtain the distance influence value, and comprehensively analyzing the distance influence value and the audience distribution density value to obtain the area influence value; Step 3, comprehensively analyzing the area size information, the audience distribution density value, the audience average coordinate, the distance influence value, the device information and the area 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 by the obtained vertical adjustment value, horizontal adjustment value and brightness adjustment value; Step 4, converting the obtained meteorological data information and geographic information into visual information through the adjusted holographic projection device, and projecting it for display.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and 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; A 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 a scene database, and store the meteorological data information and geographic information in a 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 equipment 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. The holographic projection display module is used to convert the meteorological data in the projection information database into visual dynamic meteorological data for display, and convert the geographical data into a display sand table. The visual dynamic meteorological data and the display sand table are projected and displayed through the optimized and adjusted equipment.

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, including: 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, obtaining region size information, and comprehensively analyzing the region size information and audience coordinate information to obtain audience distribution analysis results are as follows: Set the coordinates of the holographic projection device as the center point, divide the scene size into multiple annular areas, obtain the inner radius and outer radius of the divided areas, obtain the number of spectators in each area, obtain the maximum number of spectators through screening statistics, and obtain the position coordinates of each spectator in each area, calculate the mean of each spectator position coordinate, and obtain the average position coordinates of the audience. The distribution density value is obtained by comprehensive calculation of 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 in that: 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: The distance between the center of each area and the coordinates of the holographic projection device is comprehensively calculated to obtain the distance impact value, and the number of viewers, distribution density value and distance impact value of each area are comprehensively calculated to obtain the area impact value; The regional influence value is obtained as follows: In the formula, 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 ith region, p i represents the distribution density of the audience in the i-th area, represents 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 the 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 the 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 5 is characterized in that: The steps for obtaining the horizontal angle adjustment analysis result are as follows: The horizontal evaluation value and the vertical influence 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 the horizontal influence value; the horizontal influence value, the initial horizontal angle of the holographic projection device, the horizontal evaluation value, and the regional influence value are comprehensively calculated to obtain the horizontal adjustment value; The horizontal adjustment value is obtained 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 ith region, K i Represents the i-th level evaluation value.

7. The meteorological dynamic sand table display system based on holographic projection according to claim 5 is characterized in that: The steps for obtaining the vertical angle adjustment analysis result are as follows: The initial vertical angle of the holographic projection equipment, the vertical projection angle adjustment amount and the vertical influence value are comprehensively analyzed to obtain the vertical evaluation value, and the vertical evaluation value, the initial vertical angle of the holographic projection equipment, the vertical influence value and the regional influence value are comprehensively calculated to obtain the vertical adjustment value.

8. The meteorological dynamic sand table display system based on holographic projection according to claim 5 is characterized in that: The brightness impact analysis result is obtained as follows: The projection range value is obtained by analyzing the horizontal projection range, 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 of the divided area, outer radius, number of audiences in the 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.

9. The meteorological dynamic sand table display system based on holographic projection according to claim 8 is characterized in that: The brightness adjustment value is obtained as follows: Where, L i represents the brightness adjustment value of the i-th area, L0 represents the initial brightness, I b Represents the brightness impact value, r o Represents the outer radius, r i Indicates the inner radius, R p Represents the projection range value, N i represents the number of viewers in region i, N m Indicates the maximum number of viewers.

10. A meteorological dynamic sand table display method based on holographic projection, characterized in that: The following steps are involved: Step 1: Obtain device information, scene size, audience coordinate information, geographic information, and meteorological data information, and store the acquired device information, audience 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, and comprehensively analyze the distance impact value and the audience distribution density value to obtain the area impact value; Step 3, comprehensively analyzing the area size information, the distribution density value of the audience, the average coordinates of the audience, the distance impact value, the device information and the area impact value, obtaining the vertical adjustment value, the horizontal adjustment value and the brightness adjustment value of the holographic projection device, and adjusting the horizontal and vertical angles and the brightness of the holographic projection device by the obtained vertical adjustment value, the horizontal adjustment value and the brightness adjustment value; Step 4: Convert the acquired meteorological data and geographic information into visual information through the adjusted holographic projection equipment, and project it for display.

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