Water conservancy informatization measurement and control equipment teaching research demonstration system fusing digital twinning

Abstract

The invention discloses a digital twinning fused water conservancy informatization measurement and control equipment teaching research demonstration system, and relates to the technical field of digital media. A three-dimensional modeling module; a visual processing module; the visual angle analysis module analyzes to obtain main display visual angles at different moments in the visual demonstration three-dimensional video, performs display blind area identification on the main display visual angles, and matches at least one auxiliary display visual angle for the main display visual angle; the mechanism forming module forms a view angle switching mechanism for the main display view angle and forms a display auxiliary mechanism for the auxiliary display view angle; and a screen demonstration module. By arranging the space arrangement module, the visual angle analysis module, the mechanism forming module and the screen demonstration module, multiple visual angles can be recognized in an autonomous recognition mode, errors caused by manual switching can be reduced in the high-strength display process, and therefore the display effect is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of digital media technology, and in particular to a teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins. Background Art

[0002] Multi-view collaborative display is a technical solution that captures images from different angles, switches them, and integrates them to ultimately output high-quality presentation content. It is widely used in conferences, events, performances, e-commerce showcases, and other settings, enhancing the audience's visual experience and interactivity. It is gradually being applied in large-screen teaching and research demonstrations of water conservancy information-based measurement and control equipment.

[0003] However, in teaching and research demonstrations, multi-perspective displays are usually set based on experience, and all possible perspectives are not exhaustively enumerated to obtain better perspective settings. As a result, the display is prone to operational blind spots, and the perspective is switched based on experience. However, the switching of perspectives is basically performed by human thinking. Therefore, the multi-perspective display puts a heavy burden on people and is prone to errors, which affects the effect of the display. Summary of the Invention

[0004] In order to solve the above technical problems, a teaching, research and demonstration system for water conservancy information measurement and control equipment integrating digital twins is provided. This technical solution solves the problems raised in the above background technology.

[0005] In order to achieve the above objects, the technical solution adopted by the present invention is:

[0006] A teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrated with digital twins, including:

[0007] A spatial arrangement module, which uses the space accommodating the water conservancy information measurement and control equipment as a reference space and spatially arranges at least one water conservancy information measurement and control equipment in the reference space based on the position of the large demonstration screen;

[0008] A three-dimensional modeling module, which performs spatial scanning on the water conservancy information measurement and control equipment to form a three-dimensional model of the water conservancy information measurement and control equipment;

[0009] a visualization processing module, wherein the visualization processing module pre-acquires a method for using the water conservancy information-based measurement and control equipment, and performs visualization processing on the method for using the water conservancy information-based measurement and control equipment on a three-dimensional model of the water conservancy information-based measurement and control equipment to obtain a three-dimensional visualization demonstration video;

[0010] a viewing angle analysis module, which analyzes a main viewing angle at different moments in the visual demonstration 3D video, identifies a display blind spot for the main viewing angle, and matches at least one auxiliary viewing angle to the main viewing angle based on the display blind spot of the main viewing angle;

[0011] a mechanism forming module, the mechanism forming module forming a perspective switching mechanism for the main display perspective and forming a display auxiliary mechanism for the auxiliary display perspective;

[0012] The screen demonstration module controls the large-screen demonstration for display, uses the perspective switching mechanism to switch the main display perspective, uses the display assistance mechanism to call the auxiliary display perspective corresponding to the main display perspective for display assistance, and partially enlarges the image of the main display perspective or the auxiliary display perspective according to the size of the display content.

[0013] Preferably, the spatial arrangement of at least one water conservancy information measurement and control device in the reference space based on the position of the large demonstration screen includes the following steps:

[0014] Form an observation area for water conservancy information measurement and control equipment, evenly divide the bottom surface of the reference space, and obtain at least one positioning point;

[0015] Randomly placing at least one water conservancy information measurement and control device at a positioning point, each random placement arrangement forming at least one arrangement scheme;

[0016] The arrangement plan of water conservancy information measurement and control equipment without overlap is used as a preliminary arrangement plan;

[0017] At least one reference point is evenly selected in the viewing area of ​​the water conservancy information measurement and control equipment. If the line connecting more than half of the reference points in the viewing area and the demonstration large screen does not intersect with the water conservancy information measurement and control equipment, the position of the water conservancy information measurement and control equipment corresponding to the viewing area is regarded as the qualified position;

[0018] When the positions of the water conservancy information measurement and control equipment in the preliminary arrangement plan are all qualified positions, the preliminary arrangement plan is used as the target arrangement plan, and at least one water conservancy information measurement and control equipment is spatially arranged according to at least one target arrangement plan.

[0019] Preferably, forming an onlooker area for water conservancy information measurement and control equipment comprises the following steps:

[0020] Based on historical teaching data, the average number of people in the teaching of water conservancy information measurement and control equipment is obtained. The area occupied by one person is multiplied by twice the average number of people in the teaching to obtain the total viewing area.

[0021] Identify the geometric center of the water conservancy information measurement and control equipment as a feature point, use a horizontal plane passing through the feature point as a feature surface, and use the smallest circle in the feature surface that contains the water conservancy information measurement and control equipment and has the feature point as the center as a first circle;

[0022] A second circle is drawn with the feature point as the center in the feature surface, and the area difference between the second circle and the first circle is equal to the total viewing area. The annular area between the second circle and the first circle is used as the viewing area.

[0023] Preferably, the visualizing the method of using the water conservancy information-based measurement and control equipment on the three-dimensional model of the water conservancy information-based measurement and control equipment comprises the following steps:

[0024] Evenly dividing the surface of the three-dimensional model of the water conservancy information measurement and control equipment to obtain at least one local block;

[0025] When a local block is used, the local block is subjected to a light emitting process;

[0026] According to the usage method of water conservancy information measurement and control equipment, the local blocks are illuminated in chronological order to complete the visualization processing.

[0027] Preferably, the analyzing and obtaining the main display viewing angles at different moments in the visual demonstration three-dimensional video comprises the following steps:

[0028] At least one display point is evenly selected around the water conservancy information measurement and control equipment, and the line connecting the display point and the center of the water conservancy information measurement and control equipment is used as the display viewing angle;

[0029] Evenly divide the playing time of the visualization demonstration 3D video to obtain at least one test point;

[0030] The ratio of the luminous local blocks contained in the visual field of the display angle when the playback duration of the visual demonstration 3D video is the test point is used as the feature ratio;

[0031] The display viewing angle with the largest feature ratio when the playback duration of the visual demonstration 3D video is the test point is used as the main display viewing angle when the playback duration of the visual demonstration 3D video is the test point.

[0032] Preferably, the identifying of the blind area of ​​the main display viewing angle includes the following steps:

[0033] The luminous local blocks that cannot be observed from the main display viewing angle are respectively used as at least one display blind area.

[0034] Preferably, the display blind area based on the main display perspective and matching the main display perspective with at least one auxiliary display perspective include the following steps:

[0035] The line connecting the display blind spot and the center of the water conservancy information measurement and control equipment is used as the blind spot line, and the display viewing angle with an angle less than 45 degrees with half of the blind spot line is used as the preliminary viewing angle;

[0036] At least one auxiliary display viewing angle is selected from the prepared viewing angles, and the union of display blind areas corresponding to blind area lines whose angles with the auxiliary display viewing angles are less than 45 degrees includes all display blind areas.

[0037] Preferably, the forming of a perspective switching mechanism for the main display perspective includes the following steps:

[0038] Obtaining the distance between adjacent test points as a reference time;

[0039] The time point when the current main display perspective is first displayed is used as the initial point, and the initial point is superimposed with the reference time to obtain the switching point. At the switching point, the main display perspective is switched;

[0040] Obtain the real-time playback duration of the visual demonstration 3D video on the large demonstration screen, and use the test point that is longer than the real-time playback duration and has the smallest distance from the real-time playback duration as the target test point;

[0041] The main display perspective corresponding to the target test point replaces the current main display perspective.

[0042] Preferably, the forming of the display auxiliary mechanism for the auxiliary display perspective comprises the following steps:

[0043] Under the main display viewing angle, the overlap ratio between the luminous partial blocks is calculated as a first occlusion ratio, and the first occlusion ratios of all pairwise combinations of the luminous partial blocks are averaged to obtain a first verification value.

[0044] Under the auxiliary display perspective corresponding to the main display perspective, calculating the overlap ratio between the illuminated partial blocks as a second occlusion ratio, and averaging the second occlusion ratios of all pairwise combinations of the illuminated partial blocks to obtain a second verification value;

[0045] When the first check value is greater than the average of at least one second check value, the screen is switched to the auxiliary display perspective with the smallest second check value for display; when the first check value is not greater than the average of at least one second check value, it is switched back to the main display perspective for display.

[0046] Preferably, the partially enlarging the image of the main display perspective or the auxiliary display perspective according to the size of the display content includes the following steps:

[0047] Obtain the optimal size for naked eye observation on the large demonstration screen in advance to form a reference square, the side length of which is equal to the optimal size for naked eye observation;

[0048] When the area of ​​the luminous partial block in the display content is smaller than the reference block, the luminous partial block is enlarged to obtain an enlarged frame, and the enlargement ratio is equal to the ratio of twice the reference block to the area of ​​the luminous partial block;

[0049] A pointing line connects the enlarged frame and the corresponding illuminated local block.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] By setting up a spatial arrangement module, a perspective analysis module, a mechanism formation module and a screen demonstration module, the display limit of the visual demonstration three-dimensional video is estimated, and based on the estimated results, the effects of all possible combinations of display perspectives are analyzed, so that the perspective with better effect can be selected for display, and the main perspective and auxiliary perspective are set according to the position of the perspective. At the same time, a perspective switching mechanism is formed, so that during the display, multiple perspectives can be identified through autonomous recognition, which can reduce the errors caused by human switching during the high-intensity display process, thereby ensuring the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a flow chart of the teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrated with digital twins of the present invention;

[0053] Figure 2 This is a schematic diagram of a process for spatially arranging at least one water conservancy information measurement and control device in a reference space based on the position of a large demonstration screen according to the present invention;

[0054] Figure 3 A schematic diagram of the process of forming an onlooker area for water conservancy information measurement and control equipment according to the present invention;

[0055] Figure 4 A schematic flow chart of visualizing the method for using the water conservancy information-based measurement and control equipment on a three-dimensional model of the water conservancy information-based measurement and control equipment according to the present invention;

[0056] Figure 5 A schematic diagram of a process for analyzing and visually demonstrating the main display perspective at different moments in a three-dimensional video according to the present invention;

[0057] Figure 6 This is a flow chart of matching a main display perspective with at least one auxiliary display perspective based on a display blind area of ​​the main display perspective according to the present invention;

[0058] Figure 7 Schematic diagram of the process of forming a perspective switching mechanism for the main display perspective of the present invention;

[0059] Figure 8Schematic diagram of the process of forming a display auxiliary mechanism for auxiliary display viewing angles of the present invention;

[0060] Figure 9 The figure is a flow chart of partially zooming in on an image of a main display viewing angle or an auxiliary display viewing angle according to the size of the display content according to the present invention. DETAILED DESCRIPTION

[0061] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0062] Reference Figure 1 As shown in the figure, a teaching and research demonstration system for water conservancy information measurement and control equipment integrating digital twins includes:

[0063] A spatial arrangement module, which uses the space accommodating the water conservancy information measurement and control equipment as a reference space and spatially arranges at least one water conservancy information measurement and control equipment in the reference space based on the position of the large demonstration screen;

[0064] A three-dimensional modeling module, which performs spatial scanning on the water conservancy information measurement and control equipment to form a three-dimensional model of the water conservancy information measurement and control equipment;

[0065] a visualization processing module, wherein the visualization processing module pre-acquires a method for using the water conservancy information-based measurement and control equipment, and performs visualization processing on the method for using the water conservancy information-based measurement and control equipment on a three-dimensional model of the water conservancy information-based measurement and control equipment to obtain a three-dimensional visualization demonstration video;

[0066] a viewing angle analysis module, which analyzes a main viewing angle at different moments in the visual demonstration 3D video, identifies a display blind spot for the main viewing angle, and matches at least one auxiliary viewing angle to the main viewing angle based on the display blind spot of the main viewing angle;

[0067] a mechanism forming module, the mechanism forming module forming a perspective switching mechanism for the main display perspective and forming a display auxiliary mechanism for the auxiliary display perspective;

[0068] The screen demonstration module controls the large-screen demonstration for display, uses the perspective switching mechanism to switch the main display perspective, uses the display assistance mechanism to call the auxiliary display perspective corresponding to the main display perspective for display assistance, and partially enlarges the image of the main display perspective or the auxiliary display perspective according to the size of the display content.

[0069] In actual teaching and research demonstrations, teaching is usually coordinated with real objects and large demonstration screens. The large demonstration screen displays a visual demonstration three-dimensional video, which is a video of how to use water conservancy information measurement and control equipment. However, since the large demonstration screen can only display a flat perspective, it is necessary to select the perspective of the visual demonstration three-dimensional video to ensure its display effect. Since the number of people learning is relatively large, when coordinating with real objects, it is necessary to ensure that the learners can clearly see the water conservancy information measurement and control equipment around them and see the content on the large demonstration screen. That is, it is necessary to ensure that the remaining water conservancy information measurement and control equipment will not block the learners' line of sight to the large demonstration screen, and ensure that the content on the large demonstration screen is large enough. This was solved in a series of steps set up later.

[0070] Reference Figure 2 As shown, based on the position of the large demonstration screen, spatially arranging and setting at least one water conservancy information measurement and control device in the reference space includes the following steps:

[0071] Form an observation area for water conservancy information measurement and control equipment, evenly divide the bottom surface of the reference space, and obtain at least one positioning point;

[0072] Randomly placing at least one water conservancy information measurement and control device at a positioning point, each random placement arrangement forming at least one arrangement scheme;

[0073] The arrangement plan of water conservancy information measurement and control equipment without overlap is used as a preliminary arrangement plan;

[0074] At least one reference point is evenly selected in the viewing area of ​​the water conservancy information measurement and control equipment. If the line connecting more than half of the reference points in the viewing area and the demonstration large screen does not intersect with the water conservancy information measurement and control equipment, the position of the water conservancy information measurement and control equipment corresponding to the viewing area is regarded as the qualified position;

[0075] When the positions of the water conservancy information measurement and control equipment in the preliminary arrangement plan are all qualified positions, the preliminary arrangement plan is used as the target arrangement plan, and at least one water conservancy information measurement and control equipment is spatially arranged according to at least one target arrangement plan.

[0076] When the viewing area is determined, the target layout plan can be determined based on the viewing area, mainly to ensure that more than half of the positions in the viewing area will not be blocked by the remaining water conservancy information measurement and control equipment from the view of the demonstration large screen. In this way, when the learners compare the contents of the water conservancy information measurement and control equipment with the demonstration large screen, they can ensure that they can see the contents of the water conservancy information measurement and control equipment and the demonstration large screen at the same time through appropriate movement;

[0077] When setting up the viewing area, on the one hand, its area cannot be expanded indefinitely, and on the other hand, it is necessary to ensure that everyone can observe and learn effectively. Taking the teaching display mainly concentrated on the back of the water conservancy information measurement and control equipment as an example, the viewing area on the back of the water conservancy information measurement and control equipment needs to be large enough to accommodate people who are learning. Otherwise, it will lead to a large movement in order to see the real object clearly, because the back of the water conservancy information measurement and control equipment cannot be seen clearly from the front of the water conservancy information measurement and control equipment.

[0078] Reference Figure 3 As shown, forming an onlooker area for water conservancy information measurement and control equipment includes the following steps:

[0079] Based on historical teaching data, the average number of people in the teaching of water conservancy information measurement and control equipment is obtained. The area occupied by one person is multiplied by twice the average number of people in the teaching to obtain the total viewing area.

[0080] Identify the geometric center of the water conservancy information measurement and control equipment as a feature point, use a horizontal plane passing through the feature point as a feature surface, and use the smallest circle in the feature surface that contains the water conservancy information measurement and control equipment and has the feature point as the center as a first circle;

[0081] A second circle is drawn with the feature point as the center in the feature surface, and the area difference between the second circle and the first circle is equal to the total viewing area. The annular area between the second circle and the first circle is used as the viewing area.

[0082] Reference Figure 4 As shown, visualizing the method of using the water conservancy information-based measurement and control equipment on the three-dimensional model of the water conservancy information-based measurement and control equipment includes the following steps:

[0083] Evenly dividing the surface of the three-dimensional model of the water conservancy information measurement and control equipment to obtain at least one local block;

[0084] When a local block is used, the local block is subjected to a light emitting process;

[0085] According to the usage method of water conservancy information measurement and control equipment, the local blocks are illuminated in chronological order to complete the visualization processing.

[0086] When demonstrating the usage of water conservancy information technology measurement and control equipment, in order to facilitate viewing, the positions on the surface of the water conservancy information technology measurement and control equipment that are touched in sequence during use are illuminated. When learners observe, they can easily find the corresponding positions on the actual water conservancy information technology measurement and control equipment.

[0087] Reference Figure 5 As shown, analyzing and obtaining the main display perspectives at different moments in the three-dimensional video for visual demonstration includes the following steps:

[0088] At least one display point is evenly selected around the water conservancy information measurement and control equipment, and the line connecting the display point and the center of the water conservancy information measurement and control equipment is used as the display viewing angle;

[0089] Evenly divide the playing time of the visualization demonstration 3D video to obtain at least one test point;

[0090] The ratio of the luminous local blocks contained in the visual field of the display angle when the playback duration of the visual demonstration 3D video is the test point is used as the feature ratio;

[0091] The display viewing angle with the largest feature ratio when the playback duration of the visual demonstration 3D video is the test point is used as the main display viewing angle when the playback duration of the visual demonstration 3D video is the test point.

[0092] The visualization demonstration three-dimensional video is a three-dimensional video, but the large demonstration screen can only display one perspective. The main display perspective is the perspective with the least blind spots, that is, almost all current operations on the water conservancy information measurement and control equipment can be observed through the main display perspective, but as time changes, the operations will change. Therefore, it is necessary to switch the main display perspective according to the actual situation, and the switched main display perspective must be a perspective further back in the timeline.

[0093] Identifying blind spots in the main display viewing angle includes the following steps:

[0094] The luminous local blocks that cannot be observed from the main display viewing angle are respectively used as at least one display blind area.

[0095] Reference Figure 6 As shown, based on the display blind area of ​​the main display view, matching the main display view with at least one auxiliary display view includes the following steps:

[0096] The line connecting the display blind spot and the center of the water conservancy information measurement and control equipment is used as the blind spot line, and the display viewing angle with an angle less than 45 degrees with half of the blind spot line is used as the preliminary viewing angle;

[0097] At least one auxiliary display viewing angle is selected from the prepared viewing angles, and the union of display blind areas corresponding to blind area lines whose angles with the auxiliary display viewing angles are less than 45 degrees includes all display blind areas.

[0098] Assuming that the main display viewing angle is the front of the water conservancy information measurement and control equipment, the back of the water conservancy information measurement and control equipment cannot be observed. It is easy to know whether it can be observed depends on whether the angle between the line connecting the luminous local block to the center of the water conservancy information measurement and control equipment and the main display viewing angle is less than 90 degrees. If it is less than 90 degrees, it means that it is on the front and can be observed. Otherwise, it cannot be observed. For the selection of the preliminary viewing angle, 45 degrees is used as the judgment basis, because when the angle is close to 90 degrees, it is equivalent to being on the side. Although it can be observed, the angle is not good. Therefore, it is necessary to choose as close as possible, which will result in the field of view of an auxiliary display viewing angle being unable to include all the display blind spots. Several auxiliary display viewing angles are required to comprehensively include all the display blind spots.

[0099] Reference Figure 7 As shown, forming a perspective switching mechanism for the main display perspective includes the following steps:

[0100] Obtaining the distance between adjacent test points as a reference time;

[0101] The time point when the current main display perspective is first displayed is used as the initial point, and the initial point is superimposed with the reference time to obtain the switching point. At the switching point, the main display perspective is switched;

[0102] Obtain the real-time playback duration of the visual demonstration 3D video on the large demonstration screen, and use the test point that is longer than the real-time playback duration and has the smallest distance from the real-time playback duration as the target test point;

[0103] The main display perspective corresponding to the target test point replaces the current main display perspective.

[0104] Reference Figure 8 As shown, forming a display auxiliary mechanism for the auxiliary display perspective includes the following steps:

[0105] Under the main display viewing angle, the overlap ratio between the luminous partial blocks is calculated as a first occlusion ratio, and the first occlusion ratios of all pairwise combinations of the luminous partial blocks are averaged to obtain a first verification value.

[0106] Under the auxiliary display perspective corresponding to the main display perspective, calculating the overlap ratio between the illuminated partial blocks as a second occlusion ratio, and averaging the second occlusion ratios of all pairwise combinations of the illuminated partial blocks to obtain a second verification value;

[0107] When the first check value is greater than the average of at least one second check value, the screen is switched to the auxiliary display perspective with the smallest second check value for display; when the first check value is not greater than the average of at least one second check value, it is switched back to the main display perspective for display.

[0108] When switching perspectives, the main display perspective is constantly changing over time. During the presentation of the main display perspective, in order to supplement the blind spots of the usage position, the auxiliary display perspective is supplemented. Due to the limited area of ​​the demonstration large screen, when multiple pictures are displayed in parallel, it is easy to produce a messy feeling. At the same time, each picture will be reduced, resulting in a lack of clarity, and it is also easy to cause insufficient space for enlarged display of local positions. Therefore, during the presentation of the main display perspective, the auxiliary display perspective and the main display perspective are cross-switch displayed to ensure that the demonstration large screen only displays one picture, and the picture is large enough and easy to see clearly. At the same time, enough space can be reserved for local enlarged display.

[0109] Reference Figure 9 As shown, according to the size of the display content, partially enlarging the image of the main display perspective or the auxiliary display perspective includes the following steps:

[0110] Obtain the optimal size for naked eye observation on the large demonstration screen in advance to form a reference square, the side length of which is equal to the optimal size for naked eye observation;

[0111] When the area of ​​the luminous partial block in the display content is smaller than the reference block, the luminous partial block is enlarged to obtain an enlarged frame, and the enlargement ratio is equal to the ratio of twice the reference block to the area of ​​the luminous partial block;

[0112] A pointing line connects the enlarged frame and the corresponding illuminated local block.

[0113] The text or buttons in some parts of the water conservancy information measurement and control equipment are small. When the operation is too fast, it is easy to see the order of operation, which will cause trouble for learners. Therefore, the parts with the above problems are partially magnified by local magnification.

[0114] Furthermore, this solution also proposes a storage medium on which a computer-readable program is stored. When the computer-readable program is called, it executes the above-mentioned water conservancy information measurement and control equipment teaching and research demonstration system integrating digital twins.

[0115] It is understandable that the storage medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; an optical medium, such as a DVD; or a semiconductor medium, such as a solid state disk (SSD).

[0116] To sum up, the advantages of the present invention are: by setting a spatial arrangement module, a perspective analysis module, a mechanism formation module and a screen demonstration module, the display limit of the visual demonstration three-dimensional video is estimated, and based on the estimation results, the effects of the combination of all possible display perspectives are analyzed, so as to select the perspective with better effect for display, and set the main perspective and auxiliary perspective according to the position of the perspective. At the same time, a perspective switching mechanism is formed, so that during the display, multiple perspectives can be identified by autonomous identification, which can reduce the errors caused by human switching during high-intensity display, thereby ensuring the display effect.

[0117] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins, characterized by: include: A spatial arrangement module, which uses the space accommodating the water conservancy information measurement and control equipment as a reference space and spatially arranges at least one water conservancy information measurement and control equipment in the reference space based on the position of the large demonstration screen; A three-dimensional modeling module, which performs spatial scanning on the water conservancy information measurement and control equipment to form a three-dimensional model of the water conservancy information measurement and control equipment; a visualization processing module, wherein the visualization processing module pre-acquires a method for using the water conservancy information-based measurement and control equipment, and performs visualization processing on the method for using the water conservancy information-based measurement and control equipment on a three-dimensional model of the water conservancy information-based measurement and control equipment to obtain a three-dimensional visualization demonstration video; a viewing angle analysis module, which analyzes a main viewing angle at different moments in the visual demonstration 3D video, identifies a display blind spot for the main viewing angle, and matches at least one auxiliary viewing angle to the main viewing angle based on the display blind spot of the main viewing angle; a mechanism forming module, the mechanism forming module forming a perspective switching mechanism for the main display perspective and forming a display auxiliary mechanism for the auxiliary display perspective; The screen demonstration module controls the large-screen demonstration for display, uses the perspective switching mechanism to switch the main display perspective, uses the display assistance mechanism to call the auxiliary display perspective corresponding to the main display perspective for display assistance, and partially enlarges the image of the main display perspective or the auxiliary display perspective according to the size of the display content.

2. The teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins according to claim 1 is characterized in that: The spatial arrangement of at least one water conservancy information measurement and control device in the reference space based on the position of the demonstration large screen includes the following steps: Form an observation area for water conservancy information measurement and control equipment, evenly divide the bottom surface of the reference space, and obtain at least one positioning point; Randomly placing at least one water conservancy information measurement and control device at a positioning point, each random placement arrangement forming at least one arrangement scheme; The arrangement plan of water conservancy information measurement and control equipment without overlap is used as a preliminary arrangement plan; At least one reference point is evenly selected in the viewing area of ​​the water conservancy information measurement and control equipment. If the line connecting more than half of the reference points in the viewing area and the demonstration large screen does not intersect with the water conservancy information measurement and control equipment, the position of the water conservancy information measurement and control equipment corresponding to the viewing area is regarded as the qualified position; When the positions of the water conservancy information measurement and control equipment in the preliminary arrangement plan are all qualified positions, the preliminary arrangement plan is used as the target arrangement plan, and at least one water conservancy information measurement and control equipment is spatially arranged according to at least one target arrangement plan.

3. The teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins according to claim 2 is characterized in that: The formation of the viewing area of ​​the water conservancy information measurement and control equipment comprises the following steps: Based on historical teaching data, the average number of people in the teaching of water conservancy information measurement and control equipment is obtained. The area occupied by one person is multiplied by twice the average number of people in the teaching to obtain the total viewing area. Identify the geometric center of the water conservancy information measurement and control equipment as a feature point, use a horizontal plane passing through the feature point as a feature surface, and use the smallest circle in the feature surface that contains the water conservancy information measurement and control equipment and has the feature point as the center as a first circle; A second circle is drawn with the feature point as the center in the feature surface, and the area difference between the second circle and the first circle is equal to the total viewing area. The annular area between the second circle and the first circle is used as the viewing area.

4. The teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins according to claim 3 is characterized in that: The visualization of the method for using the water conservancy information-based measurement and control equipment on the three-dimensional model of the water conservancy information-based measurement and control equipment includes the following steps: Evenly dividing the surface of the three-dimensional model of the water conservancy information measurement and control equipment to obtain at least one local block; When a local block is used, the local block is subjected to a light emitting process; According to the usage method of water conservancy information measurement and control equipment, the local blocks are illuminated in chronological order to complete the visualization processing.

5. The teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins according to claim 4 is characterized in that: The analysis to obtain the main display perspectives at different moments in the visual demonstration 3D video includes the following steps: At least one display point is evenly selected around the water conservancy information measurement and control equipment, and the line connecting the display point and the center of the water conservancy information measurement and control equipment is used as the display viewing angle; Evenly divide the playing time of the visualization demonstration 3D video to obtain at least one test point; The ratio of the luminous local blocks contained in the visual field of the display angle when the playback duration of the visual demonstration 3D video is the test point is used as the feature ratio; The display viewing angle with the largest feature ratio when the playback duration of the visual demonstration 3D video is the test point is used as the main display viewing angle when the playback duration of the visual demonstration 3D video is the test point.

6. The teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins according to claim 5 is characterized in that: The identification of the blind area of ​​the main display viewing angle includes the following steps: The luminous local blocks that cannot be observed from the main display viewing angle are respectively used as at least one display blind area.

7. The teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins according to claim 6 is characterized in that: The method of matching the main display perspective with at least one auxiliary display perspective based on the display blind area of ​​the main display perspective includes the following steps: The line connecting the display blind spot and the center of the water conservancy information measurement and control equipment is used as the blind spot line, and the display viewing angle with an angle less than 45 degrees with half of the blind spot line is used as the preliminary viewing angle; At least one auxiliary display viewing angle is selected from the prepared viewing angles, and the union of display blind areas corresponding to blind area lines whose angles with the auxiliary display viewing angles are less than 45 degrees includes all display blind areas.

8. The teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins according to claim 7 is characterized in that: The perspective switching mechanism for forming the main display perspective includes the following steps: Obtaining the distance between adjacent test points as a reference time; The time point when the current main display perspective is first displayed is used as the initial point, and the initial point is superimposed with the reference time to obtain the switching point. At the switching point, the main display perspective is switched; Obtain the real-time playback duration of the visual demonstration 3D video on the large demonstration screen, and use the test point that is longer than the real-time playback duration and has the smallest distance from the real-time playback duration as the target test point; The main display perspective corresponding to the target test point replaces the current main display perspective.

9. The teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrating digital twins according to claim 8 is characterized in that: The auxiliary display mechanism for the auxiliary display perspective includes the following steps: Under the main display viewing angle, the overlap ratio between the luminous partial blocks is calculated as a first occlusion ratio, and the first occlusion ratios of all pairwise combinations of the luminous partial blocks are averaged to obtain a first verification value. Under the auxiliary display perspective corresponding to the main display perspective, calculating the overlap ratio between the illuminated partial blocks as a second occlusion ratio, and averaging the second occlusion ratios of all pairwise combinations of the illuminated partial blocks to obtain a second verification value; When the first check value is greater than the average of at least one second check value, the screen is switched to the auxiliary display perspective with the smallest second check value for display; when the first check value is not greater than the average of at least one second check value, it is switched back to the main display perspective for display.

10. The teaching, research and demonstration system for water conservancy information-based measurement and control equipment integrated with digital twins according to claim 9 is characterized in that: The partially enlarging the image of the main display perspective or the auxiliary display perspective according to the size of the display content includes the following steps: Obtain the optimal size for naked eye observation on the large demonstration screen in advance to form a reference square, the side length of which is equal to the optimal size for naked eye observation; When the area of ​​the luminous partial block in the display content is smaller than the reference block, the luminous partial block is enlarged to obtain an enlarged frame, and the enlargement ratio is equal to the ratio of twice the reference block to the area of ​​the luminous partial block; A pointing line connects the enlarged frame and the corresponding illuminated local block.

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