Simulation war game deduction situation display technology based on three-dimensional inclined terrain

Abstract

The invention relates to the field of computer simulation and virtual reality, in particular to a simulation war game deduction situation display technology based on a three-dimensional inclined terrain. The simulation war game deduction situation display technology based on the three-dimensional inclined terrain comprises the following steps: a, a terrain data loading and processing step: obtaining a digital elevation model or triangulated irregular network data of a battlefield area, and processing the digital elevation model or triangulated irregular network data into a three-dimensional gridding terrain model for real-time calculation, according to the method, the three-dimensional gridding terrain model is deeply integrated into the deduction kernel and directly used for resolving the intervisibility field based on real terrain shielding in real time, and the problem that the terrain and deduction logic are disjointed in the traditional technology is fundamentally solved by combining the firing range limited by the pitch angle of a weapon and the maneuverability influenced by the gradient, so that the method is suitable for the large-scale industrial application. And the accuracy and authenticity of tactical judgment and deduction results are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of computer simulation and virtual reality, and in particular to a simulation wargaming situation display technology based on three-dimensional tilted terrain. Background Technology

[0002] Wargaming is an important tool for combat simulation, scenario evaluation, commander training, and tactical research. Traditional wargaming systems are mostly based on two-dimensional electronic maps. In such systems, terrain features are typically presented in a planar manner using contour lines or color blocks, failing to accurately reflect key vertical dimensions of the battlefield environment such as altitude, slope, and undulation. This leads to serious distortions in tactical judgments. For example, it is impossible to accurately determine the line-of-sight between units based on real terrain, to calculate blind spots caused by terrain obstruction, or to accurately assess the impact of different slopes on unit mobility. Consequently, the tactical realism and reference value of the wargaming results are greatly reduced.

[0003] To overcome the limitations of two-dimensional planes, some simulation systems have incorporated three-dimensional visualization technology. However, existing three-dimensional display technologies generally suffer from the following problems: First, terrain data is severely disconnected from the core of the simulation. Most systems only implement "superficial" 3D rendering, directly overlaying 2D wargaming symbols and situational information onto a 3D terrain model. The 3D terrain serves merely as a "visual background," and its data is not deeply involved in the core logical calculations of the simulation. Therefore, the calculation of key tactical parameters such as line of sight, field of fire, and maneuver still relies on simplified 2D algorithms, failing to realize the true potential of 3D data.

[0004] Secondly, information display and interaction in 3D scenes present challenges. In complex 3D sloping terrain, mountains, buildings, and other tall terrain features can easily obstruct the view of tactical units and key positions, making it difficult for commanders to gain a comprehensive battlefield perception. Furthermore, how to naturally and clearly attach tactical plots such as attack routes and defensive fronts to the undulating terrain surface, and how to enable users to interact efficiently and intuitively with multi-dimensional information, are also challenges currently facing technology.

[0005] Therefore, it is necessary to provide a new simulation wargaming situation display technology based on three-dimensional tilted terrain to solve the above-mentioned technical problems. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a simulation wargaming situation display technology based on three-dimensional tilted terrain.

[0007] The simulation wargaming situation display technology based on three-dimensional tilted terrain provided by this invention includes the following steps: a. Terrain data loading and processing steps: acquire digital elevation models or irregular triangular mesh data of the battlefield area, and process them into a three-dimensional meshed terrain model for real-time calculation; b. Tactical unit deployment and attitude adaptation steps: Deploy the wargaming tactical units on the three-dimensional gridded terrain model, and automatically adjust the attitude of the virtual model according to the slope and aspect of the terrain where the tactical unit is located, so that its base fits the terrain surface. c. Real-time calculation steps for terrain-based tactical parameters: For at least one tactical unit on the three-dimensional meshed terrain model, calculate at least one tactical parameter directly affected by the terrain in real time and dynamically; d. Situation information fusion and visualization generation steps: The tactical units and their calculated tactical parameters are fused with the combat command information to generate a three-dimensional dynamic battlefield situation map containing multi-dimensional tactical information, and then the map is output and displayed.

[0008] Preferably, the real-time calculation of tactical parameters in step c specifically includes at least one of the following calculations: a. Visibility calculation: Using the selected tactical unit as the observation point, calculate and generate the visible area and blind zone of the unit based on the occlusion relationship of the 3D meshed terrain model; b. Calculation of firing range: Combining the weapon elevation angle limitations and ballistic characteristics of the tactical unit itself, the actual fire coverage range is calculated and generated on a three-dimensional meshed terrain model; c. Mobility calculation: Based on the tactical unit type and the slope data of the terrain where it is located, adjust the maximum movement speed of the unit in real time or calculate its passability.

[0009] Preferably, the visualization generation in step d further includes: The visible and blind zones generated by the calculated field of view, or the fire coverage area generated by the calculated field of fire, are overlaid and rendered on the three-dimensional meshed terrain model with different colors or transparency.

[0010] Preferably, the visualization generation in step d further includes: When target tactical units are obscured by terrain, the obscured units are visualized using outline highlighting or semi-transparent penetration effects to achieve unobstructed observation.

[0011] Preferably, the combat command information includes marching route instructions; and step d accordingly includes: The three-dimensional path of the marching route is dynamically drawn as a smooth curve and attached to the surface of the three-dimensional meshed terrain model.

[0012] Preferably, the method further includes a tactical support analysis step, which is performed after step c and before step d, and specifically includes at least one of the following analyses: a. Advantageous position analysis: Automatically analyzes the entire three-dimensional gridded terrain model, searches for and marks potential advantageous observation points or firing positions that meet preset conditions (such as having a wide field of view and good concealment); b. Concealed route planning: Based on the user-defined starting point and destination, and the results of the line-of-sight calculation, automatically plan and recommend a maneuver route with the lowest exposure risk.

[0013] Preferably, step d further includes: The potential advantageous observation points or recommended maneuver routes marked in the tactical auxiliary analysis steps are highlighted or specially marked on the three-dimensional dynamic battlefield situation map.

[0014] A simulation wargaming situation display system based on three-dimensional tilted terrain includes: a. Terrain data processing module, used to acquire digital elevation models or irregular triangular network data of the battlefield area and process them into a three-dimensional meshed terrain model for real-time calculation; b. Tactical unit management module, used to deploy wargame tactical units on the three-dimensional gridded terrain model and automatically adjust their model orientation according to the terrain; c. A tactical parameter calculation module, used to calculate at least one tactical parameter directly affected by the terrain in real time and dynamically for at least one tactical unit on the three-dimensional meshed terrain model; d. Situation fusion and generation module, used to fuse the tactical units and their calculated tactical parameters with combat command information to generate and output a three-dimensional dynamic battlefield situation map containing multi-dimensional tactical information.

[0015] Preferably, the tactical parameter calculation module specifically includes: a. Visibility calculation submodule, used to calculate and generate the visible and blind zone ranges of tactical units; b. The firing range calculation submodule is used to calculate and generate the actual fire coverage range of tactical units; c. Mobility calculation submodule, used to correct the mobility parameters of tactical units in real time according to the terrain slope.

[0016] Compared with related technologies, the simulation wargaming situation display technology based on three-dimensional tilted terrain provided by this invention has the following beneficial effects: 1. This invention deeply integrates a three-dimensional meshed terrain model into the simulation kernel, which is directly used to calculate in real time the field of view based on real terrain obstruction, the firing range limited by weapon elevation angle, and the mobility affected by slope. This fundamentally solves the problem of the disconnect between terrain and simulation logic in traditional technologies, and significantly improves the accuracy and realism of tactical judgment and simulation results.

[0017] 2. This invention solves the technical problem of information occlusion and chaotic display in complex three-dimensional scenes by overlaying and rendering the calculated multi-dimensional tactical information (such as field of fire and blind spots) onto the three-dimensional terrain in the form of layers, and combines the perspective display of occlusion units and the surface-fitting drawing technology of combat commands. It provides commanders with a comprehensive, intuitive and clear battlefield situational awareness, and effectively improves decision-making efficiency and command capabilities. Attached Figure Description

[0018] Figure 1 A schematic diagram of the system functional module structure is provided for this invention; Figure 2 This is a schematic diagram of the method flow structure of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] Example 1 This invention provides a method for displaying the situation in a simulated wargame based on three-dimensional tilted terrain, the detailed process of which is as follows: Figure 2 As shown, this method can be derived from... Figure 1 The system shown is used to execute this.

[0021] The method first performs terrain data loading and processing steps. The system reads raw elevation data, such as the digital elevation model (DEM) or triangular network (TIN) of the specified battlefield, from the terrain database, and preprocesses it to generate a structured three-dimensional meshed terrain model. This model divides the terrain surface into a large number of triangular patches or quadrilateral meshes, providing a unified and efficient data foundation for all subsequent terrain-based calculations.

[0022] Next, the tactical unit deployment and attitude adaptation steps are executed. When the user deploys a tactical unit on the map through the simulation console, the system will automatically adjust the attitude of the tactical unit's 3D model based on the 3D coordinates of the deployment point and the normal vector of the terrain grid patch at that location, so that its virtual base (such as tank tracks) can perfectly fit the inclined terrain surface, achieving a realistic deployment effect.

[0023] Then, the system performs a real-time calculation of terrain-based tactical parameters. This is a key step in realizing the core value of this invention. For one or more tactical units on the battlefield, the system can calculate, in real-time and dynamically, the tactical parameters directly affected by the terrain. Specific calculation content may include: Visibility calculation: When a user selects a tactical unit as an observation point, the system emits virtual rays from that unit to its surroundings. By determining whether the rays collide with the terrain, the system determines whether the target area is visible, thereby generating the visible area and blind zone of the unit.

[0024] Fire range calculation: Based on the line-of-sight calculation, and further combined with the weapon performance of the tactical unit itself, such as maximum range and elevation angle limits, an irregular and realistic fire coverage range on the three-dimensional terrain is calculated.

[0025] Mobility calculation: When a tactical unit needs to move, the system will obtain the slope value of the terrain at its current location and adjust its maximum movement speed in real time or determine whether it can pass through based on its unit type (such as tracked or wheeled).

[0026] To provide commanders with more intelligent decision support, this method can also perform an optional tactical auxiliary analysis step before situational integration. This step utilizes the aforementioned computational capabilities to provide commanders with decision-making references. For example, the system can perform superior position analysis, automatically traversing and evaluating the visibility and concealment of the entire battlefield terrain to search for and mark potential advantageous observation points or firing positions. Alternatively, the system can perform concealed route planning, automatically planning and recommending a maneuver route with the lowest exposure risk after the user sets the start and end points.

[0027] Finally, the system performs situational information fusion and visualization generation. The system integrates all the above information, including tactical units, calculated tactical parameters, combat orders, and auxiliary analysis results, to generate the final 3D dynamic battlefield situational map. In this situational map: The calculated field of view or firing range will be precisely overlaid and rendered on the surface of the 3D terrain model as layers of different colors and transparency, making the battlefield situation clear at a glance.

[0028] To address the issue of line-of-sight occlusion in 3D scenes, when a user's target tactical unit is obscured by terrain such as mountains, the system will use special effects such as highlighting the outline or semi-transparent penetration to display it, ensuring that the commander can always keep track of the location of key units.

[0029] When a user issues combat commands such as marching routes, the system will dynamically draw the planned three-dimensional path as a smooth curve, which will naturally attach to the undulating terrain.

[0030] If tactical analysis is performed, the advantageous positions or recommended concealed routes derived from the analysis will be clearly displayed on the situation map in the form of highlights or special markings.

[0031] Example 2 Embodiment 2 of the present invention provides a simulation wargaming situation display system based on three-dimensional tilted terrain, the functional module structure of which is as follows: Figure 1 As shown. This system is designed to perform the method described in Example 1.

[0032] Reference Figure 1 The system includes: a. a terrain data processing module, which acquires digital elevation models or irregular triangular network data of the battlefield area and processes them into a three-dimensional gridded terrain model for real-time calculation. b. a tactical unit management module, which deploys wargaming tactical units on the three-dimensional gridded terrain model and automatically adjusts their model attitude according to the terrain. c. a tactical parameter calculation module, which calculates at least one tactical parameter directly affected by the terrain for at least one tactical unit on the three-dimensional gridded terrain model in real time and dynamically. d. a situation fusion and generation module, which fuses the tactical units and their calculated tactical parameters with combat command information to generate and output a three-dimensional dynamic battlefield situation map containing multi-dimensional tactical information.

[0033] In this embodiment, the tactical parameter calculation module may specifically include one or more of the following sub-modules: The Visibility Calculation Submodule is specifically designed to calculate and generate the visible and blind zones of tactical units.

[0034] The firing range calculation submodule is specifically designed to calculate and generate the actual fire coverage range of tactical units.

[0035] The mobility calculation submodule is specifically designed to adjust the mobility parameters of tactical units in real time based on the terrain slope.

[0036] The workflow of this system corresponds exactly to the steps described in Example 1. The modules work together to ultimately achieve a more realistic and intuitive wargaming simulation that deeply integrates 3D terrain data into the calculation and display.

[0037] In summary, this invention, by deeply integrating 3D terrain data into the core calculation and situation display stages of wargaming, solves the problems of disconnect between terrain and simulation logic, unintuitive situation display, and distorted tactical judgment in existing technologies, greatly improving the realism and practicality of simulated wargaming. The above descriptions are merely embodiments of this invention and do not limit the patent scope of this invention. Any equivalent structural or procedural transformations made using the content of this specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this invention.

Claims

1. A simulation wargaming situation display technology based on three-dimensional tilted terrain, characterized in that, Includes the following steps: a. Terrain data loading and processing steps: acquire digital elevation models or irregular triangular mesh data of the battlefield area, and process them into a three-dimensional meshed terrain model for real-time calculation; b. Tactical unit deployment and attitude adaptation steps: Deploy the wargaming tactical units on the three-dimensional gridded terrain model, and automatically adjust the attitude of the virtual model according to the slope and aspect of the terrain where the tactical unit is located, so that its base fits the terrain surface. c. Real-time calculation steps for terrain-based tactical parameters: For at least one tactical unit on the three-dimensional meshed terrain model, calculate at least one tactical parameter directly affected by the terrain in real time and dynamically; d. Situation information fusion and visualization generation steps: The tactical units and their calculated tactical parameters are fused with the combat command information to generate a three-dimensional dynamic battlefield situation map containing multi-dimensional tactical information, and then the map is output and displayed.

2. The simulation wargaming situation display technology based on three-dimensional tilted terrain according to claim 1, characterized in that, The real-time calculation of tactical parameters in step c specifically includes at least one of the following calculations: a. Visibility calculation: Using the selected tactical unit as the observation point, calculate and generate the visible area and blind zone of the unit based on the occlusion relationship of the 3D meshed terrain model; b. Calculation of firing range: Combining the weapon elevation angle limitations and ballistic characteristics of the tactical unit itself, the actual fire coverage range is calculated and generated on a three-dimensional meshed terrain model; c. Mobility calculation: Based on the tactical unit type and the slope data of the terrain where it is located, adjust the maximum movement speed of the unit in real time or calculate its passability.

3. The simulation wargaming situation display technology based on three-dimensional tilted terrain according to claim 2, characterized in that, The visualization generation in step d further includes: The visible and blind zones generated by the calculated field of view, or the fire coverage area generated by the calculated field of fire, are overlaid and rendered on the three-dimensional meshed terrain model with different colors or transparency.

4. The simulation wargaming situation display technology based on three-dimensional tilted terrain according to claim 1, characterized in that, The visualization generation in step d further includes: When target tactical units are obscured by terrain, the obscured units are visualized using outline highlighting or semi-transparent penetration effects to achieve unobstructed observation.

5. The simulation wargaming situation display technology based on three-dimensional tilted terrain according to claim 1, characterized in that, The combat command information includes marching route instructions; and step d accordingly includes: The three-dimensional path of the marching route is dynamically drawn as a smooth curve and attached to the surface of the three-dimensional meshed terrain model.

6. The simulation wargaming situation display technology based on three-dimensional tilted terrain according to claim 1, characterized in that, The method also includes a tactical support analysis step, which is performed after step c and before step d, and specifically includes at least one of the following analyses: a. Advantageous position analysis: Automatically analyzes the entire three-dimensional gridded terrain model, searches for and marks potential advantageous observation points or firing positions that meet preset conditions (such as having a wide field of view and good concealment); b. Concealed route planning: Based on the user-defined starting point and destination, and the results of the line-of-sight calculation, automatically plan and recommend a maneuver route with the lowest exposure risk.

7. The simulation wargaming situation display technology based on three-dimensional tilted terrain according to claim 6, characterized in that, Step d further includes: The potential advantageous observation points or recommended maneuver routes marked in the tactical auxiliary analysis steps are highlighted or specially marked on the three-dimensional dynamic battlefield situation map.

8. A simulation wargaming situation display system based on three-dimensional tilted terrain, characterized in that, include: a. Terrain data processing module, used to acquire digital elevation models or irregular triangular network data of the battlefield area and process them into a three-dimensional meshed terrain model for real-time calculation; b. Tactical unit management module, used to deploy wargame tactical units on the three-dimensional gridded terrain model and automatically adjust their model orientation according to the terrain; c. A tactical parameter calculation module, used to calculate at least one tactical parameter directly affected by the terrain in real time and dynamically for at least one tactical unit on the three-dimensional meshed terrain model; d. Situation fusion and generation module, used to fuse the tactical units and their calculated tactical parameters with combat command information to generate and output a three-dimensional dynamic battlefield situation map containing multi-dimensional tactical information.

9. The simulation wargaming situation display system based on three-dimensional inclined terrain according to claim 8, characterized in that, The tactical parameter calculation module specifically includes: a. Visibility calculation submodule, used to calculate and generate the visible and blind zone ranges of tactical units; b. The firing range calculation submodule is used to calculate and generate the actual fire coverage range of tactical units; c. Mobility calculation submodule, used to correct the mobility parameters of tactical units in real time according to the terrain slope.

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