JP2006071192A - Aerial defense simulation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aerial defense simulation system capable of reducing user's man-hours of putting aerial defence elements in position to improve convenience. <P>SOLUTION: An aerial defense area determined by the user is divided into a plurality of small regions like a mesh, and an area of radar range is calculated on the basis of three-dimensional data of a digital map in assuming that a radar 11c is installed in each small region. The result is displayed with GUI (graphical User Interface) by changing a display color of the mesh with gradient. Then an aerial defense index is calculated by simulation on each mesh selected and designated by the user, and its result is presented to the user. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an air defense simulation system applied to, for example, an air defense flying object system for a short distance.

One known air defense system is the SAM (Surface to Air Missile) system. This type of system includes a plurality of fire units (hereinafter referred to as FU), a server system that supervises these units, a data communication line, and the like, and is deployed on a relatively large scale. These units constituting the system are hereinafter referred to as shooting units. In an air defense system, each FU is often configured to include a shooting (command) control device, a radar device, and a launching device. The launching device includes an anti-aircraft cannon (gun) and a guided bullet launching device.
The air defense capability of this type of system greatly depends on factors such as the location of each FU and the number of bullets of the launcher. Since it is difficult to verify these elements in the field because of cost and environment, it is common to apply simulation technology.

  By the way, a simulation system used for such an application has not yet reached a state where an actual air defense system can automatically calculate a state in which its capability can be maximized. In other words, when performing simulation work, the user reads the terrain information of the FU deployment location from a map, etc., and determines the position to place the radar device based on his own experience and judgment while considering the LOS of the radar due to undulations such as mountains and hills ing. Therefore, not only does it take time to study on the desk, but also the difference between the result of the desk examination and the location of the device that seems to be optimal in the actual field tends to occur. Further, even in actual operation, there are many cases where the arrangement of the apparatus is lost until the arrangement is determined. For this reason, the provision of an easy-to-use simulation system is awaited in the study of air defense systems.

A related technique is disclosed in Patent Document 1 below. This document discloses a method for optimizing a communication path so that the robustness of the communication path and the guarantee of transmission quality can be realized.
JP 2001-88799 A

As described above, the provision of a user-friendly simulation system is awaited in the study of air defense systems.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an air defense simulation system capable of reducing the labor of the user for arranging air defense elements and thereby improving convenience.

  In order to achieve the above object, according to one aspect of the present invention, there is provided an air defense simulation system that imitates operation of an air defense system that is deployed by arranging a shooting unit including a radar device in an air defense area by simulation using a computer. It is assumed that the computer divides the air defense area into a plurality of small sections and arranges the radar apparatus in each of the small sections, and stores the surrounding landform database that stores the three-dimensional topographic data of the air defense area. In this case, at least a part of the radar coverage calculated by the coverage calculation means and the coverage calculation means for calculating the radar coverage of the radar device based on the topographic data for each of the plurality of small sections. An air defense simulation system comprising user interface means for notifying the user of each small section of Temu is provided.

  By taking such means, the coverage of each point when radar is placed at each point in the air defense area is automatically calculated and notified to the user. As the notification form, for example, the covered area may be indicated by a numerical value, or the small sections may be displayed in different colors according to the size of the covered area. As a result, the user can grasp at a glance the coverage of each radar installation location, and can easily grasp the optimal installation location of the radar. Therefore, it is possible to reduce the user's trouble concerning the placement of the radar, and it is possible to improve convenience.

  ADVANTAGE OF THE INVENTION According to this invention, the user's effort concerning arrangement | positioning of an air defense element can be reduced now, and the air defense simulation system which aimed at the improvement of convenience by this can be provided.

  FIG. 1 is a system configuration diagram showing an example of an air defense system to be simulated by a system according to the present invention. The air defense system of FIG. 1 includes a plurality of FUs 11 and a shooting network 13 that connects the FUs 11 and enables mutual exchange of information. Each FU 11 includes a missile launcher 11a realized as an anti-aircraft gun (gun), a guided bullet launcher, and the like, a fire control system (FCS: Fire Control System) 11b for comprehensively controlling each missile launcher 11a, And a radar 11c that acquires information related to the target to be attacked.

  Each FU is assigned an air defense area corresponding to a predetermined air area in advance, and each FU has its own air defense capability within the air defense area. The FCS 11b performs processing such as target assignment to the missile launcher 11a based on target information acquired by the radar 11c and various information notified from other FUs.

  FIG. 2 is a system diagram showing an embodiment of an air defense simulation system according to the present invention. While the system of FIG. 1 is deployed on a relatively large scale in a geographical area, the system of FIG. 2 is a small-scale system formed mainly by a LAN (Local Area Network). The system of FIG. 2 is used to imitate the operation of the system of FIG. 1 by simulation, and based on the result, air defense strategy optimization, tactics estimation, and the like are performed. In the present embodiment, so-called simulation is referred to as federation. Federation is a term defined in the HLA interface specification realized based on RTI, and various objects generated during federation are called federation.

  In FIG. 2, a plurality of computers PC1 to PC3 are connected to each other via a communication line 100 to form a distributed processing environment. The computers PC1 to PC3 include an interface unit (I / F) 21, a display unit 22, a storage unit 23, a control unit 24, and a user interface that serve as an intermediary for exchanging information with other computers via the communication line 100. Part 25. The storage unit 23 stores scenario data 23a for defining the behavior of each federation in a predetermined storage area. In particular, the storage unit 23 of the PC 3 stores a peripheral terrain database 23b as a digital map indicating the three-dimensional terrain data of the air defense area. The user interface unit 25 includes a keyboard, a mouse (not shown), and the like, and accepts a user operation using a GUI (Graphical User Interface) environment on the display unit 22.

  The control unit 24 of the PC 1 receives the RTI. an exe file (reference numeral 24a) and a federation application 24b. RTI. The exe file 24a is a control program for causing the control unit 24 to operate as an execution body for providing the RTI environment. The federation application 24b is a control program for realizing federation according to various specifications requested by the user. Of these, the federation application 24b is also loaded into the control unit 24 of the PC2 and PC3.

  The federation application 24b in each of the PC1 to PC3 is connected to the RTI. Federation is realized by performing processing such as call, generation, and disappearance of an object under the management of the exe 24a. That is, the federation application 24b and the RTI. The exe 24a forms an environment in which federation proceeds by autonomous determination of federation based on the scenario data 23a.

The control unit 24 of the PC 3 includes a coverage calculation processing unit 24c, a parameter calculation unit 24d, and a display control unit 24e as software processing functions according to the present embodiment in addition to the federation application 24b.
The coverage calculation processing unit 24c divides the air defense area into meshes, thereby setting a plurality of small sections in the air defense area. Then, the radar coverage of the radar 11c when it is assumed that the radar 11c is arranged in each small section is calculated for each mesh. At that time, the coverage calculation processing unit 24c refers to the surrounding landform database 23b stored in the storage unit 23, and calculates a radar coverage based on the three-dimensional information.

  The parameter calculation unit 24d refers to the coverage calculated by the coverage calculation processing unit 24c, executes a simulation based on the scenario data 23a, and calculates an index related to air defense command and control for each mesh. The index includes, for example, an interception rate, a defeat rate, or a survival rate for allies. The display control unit 24 e is responsible for control related to the entire user interface through the GUI via the display unit 22. In particular, the display control unit 24e notifies the user of the coverage calculated by the coverage calculation processing unit 24c for each mesh via the GUI. The display control unit 24e notifies the user of the index calculated by the parameter calculation unit 24d in association with the corresponding mesh.

  FIG. 3 is a schematic diagram illustrating an example of a GUI window displayed on the display unit 22 of FIG. This window is provided with a mesh display area and a coverage display area. In the window of FIG. 3, first, a clickable button described as a first stage and a second stage is displayed. When the first stage button is clicked, the mesh area is calculated. Next, when the second stage button is clicked, a simulation using a short SAM scenario and an invasion scenario is performed by combining the upper result mesh regions in each device of FIG. The short SAM scenario, the invasion scenario, and the first stage calculation result (short SAM position information (scenario)) are read by PC1 and PC2 in FIG. In response, the second stage is implemented. That is, the result of the critical attack is calculated, and the result is compared.

  In addition, a radio button for selecting and specifying either the A method or the B method is displayed in the window of FIG. When the A method is selected, mesh area calculation is performed by arbitrarily selecting an upper area having a high altitude. When the B method is selected, the area calculation is performed for the entire range set by the mesh. The B method requires a longer calculation time than the A method.

  FIG. 4 is a schematic diagram showing the display contents of the mesh display area of FIG. The air defense area is divided into rectangular mesh regions as shown. The vertical and horizontal lengths of each mesh can be freely set on the GUI of FIG. 3, and the number of meshes varies depending on the value. If the number of meshes becomes excessively large, the calculation load increases. Therefore, it is preferable to set the minimum value of the vertical and horizontal lengths as 50 m, for example.

  Each mesh is displayed in gradation according to the color according to the comparison result of the calculated value of the coverage area. In FIG. 4, the difference in display color is shown by the distinction of hatching. For example, it can be seen that there are five meshes with the largest coverage area in FIG. Although FIG. 4 shows a state in which all meshes are displayed, the radar coverage of a prescribed number of meshes may be displayed in order of increasing radar coverage.

  FIG. 5 is a schematic diagram showing the display contents of the coverage display area of FIG. In the covering area display area, the calculated covering area shape is sequentially displayed in the process of calculating the covering area for each mesh. FIGS. 5A and 5B show coverage shapes for different meshes, and different coverage shapes are shown for each mesh. This is based on the difference in the installation position of the radar 11c, and the covered area is clearly wider in FIG. This is reflected in the color coding of the mesh display area in FIG.

  FIG. 6 is a diagram illustrating an example of an index calculated based on the radar coverage. Radar coverage is one of the factors governing the progress of air defense simulations, and different results are caused by differences in coverage shape and area. 6 (a) and 6 (b) can be associated with the covered area shapes of FIGS. 5 (a) and 5 (b), respectively. 6 (a) and 6 (b), the survival rate is 100%, but FIG. 6 (b) shows better results with respect to the interception rate and the destruction rate. In other words, the air defense index does not necessarily improve as the radar coverage increases. In this embodiment, these indices are calculated by simulation, and the radar position where the desired index can be obtained can be obtained.

  FIG. 7 is a flowchart showing the flow of processing in this embodiment. Referring to FIG. 7, when executing the federation, first, a scenario of the SAM system is read from the scenario data 23a (step S1). Next, an area for considering the arrangement of the radar apparatus, that is, an air defense area, is set for the system by the user via the GUI (step S2). Next, the division accuracy of the mesh in the set air defense area is set (step S3).

  Next, the system calculates a radar coverage for each mesh based on the setting information, and the result is displayed on the GUI (steps S4 and S5). Then, the user selects a plurality of meshes and designates a combination of installation positions of the radar apparatus (step S6). Next, the system reads an enemy invasion scenario from the scenario data 23a (step S7). Further, the user sets the position of the ally side launching device in the system (step S8). Receiving these pieces of information, the system calculates an air defense index for each installation position of the FU and displays the result (steps S9 and S10). The user receives the result via the GUI and determines the optimum arrangement state of the FU (step S11).

  As described above, in the present embodiment, the radar coverage area when the air defense area set by the user is divided into a plurality of small areas in a mesh shape and the radar 11c is arranged in each small area is represented as a digital map. Calculation is based on three-dimensional data. The result is displayed by GUI by changing the display color of the mesh in gradation. For each mesh selected and designated by the user, an air defense index is calculated by simulation and the result is presented to the user. In this way, the coverage for each radar installation position is automatically calculated, and an air defense index corresponding to the result is presented to the user. That is, the location where the coverage area related to the target detection of the radar apparatus can be maximized is calculated from the radar apparatus arrangement desired area set by the user. Based on the calculation result, the arrangement of each device in the system is set, and the operation result is simulated based on the scenario data. As a result, it is possible to study the arrangement of devices in a system that takes a long time with existing technology in a short time, and it is also possible to improve simulation accuracy by using a digital map. Therefore, it is possible to provide an air defense simulation system that can reduce the user's labor for the arrangement of the air defense elements and thereby improve convenience.

  In addition, this invention is not limited to the said embodiment as it is. For example, the air defense element related to the examination of the installation position is not limited to the radar apparatus, but may be a flying object launching apparatus or other elements. Further, the present invention can be embodied by modifying the constituent elements without departing from the spirit of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment.

The system block diagram which shows an example of the air defense system which the system concerning this invention makes the simulation object. 1 is a system diagram showing an embodiment of an air defense simulation system according to the present invention. FIG. 3 is a schematic diagram showing an example of a GUI window displayed on the display unit 22 of FIG. 2. The schematic diagram which shows the display content of the mesh display area of FIG. The schematic diagram which shows the display content of the coverage display area of FIG. The figure which shows an example of the parameter | index calculated based on a radar coverage. The flowchart which shows the flow of the process implemented in embodiment of this invention.

Explanation of symbols

  PC1 to PC3 ... computer, 11 ... FU, 11a ... missile launcher, 11b ... fire control system (FCS), 11c ... radar, 13 ... shooting network, 21 ... interface unit, 22 ... display unit, 23 ... storage unit, 23a ... Scenario data, 23b ... Peripheral terrain database, 24 ... Control part, 24b ... Federation application, 24a ... RTI. exe file, 24c ... coverage calculation processing unit, 24d ... parameter calculation unit, 24e ... display control unit, 25 ... user interface unit, 100 ... communication line

Claims (7)

An air defense simulation system that mimics the operation of an air defense system that is deployed by deploying a shooting unit with a radar device in an air defense area by computer simulation,
The computer
A peripheral terrain database storing three-dimensional terrain data of the air defense area;
Based on the terrain data for each of the plurality of subdivisions, the radar coverage area of the radar apparatus when it is assumed that the air defense area is divided into a plurality of subdivisions and the radar apparatus is arranged in each subdivision. Covering area calculating means for calculating;
An air defense simulation system comprising user interface means for notifying a user of at least a part of a small section of a radar coverage calculated by the coverage calculation means. The computer
Furthermore, based on the radar coverage calculated by the coverage calculation means, comprising an index calculation means for calculating an index related to air defense command and control for at least some of the subdivisions,
The air defense simulation system according to claim 1, wherein the user interface unit notifies the user of the index calculated by the index calculation unit in association with a corresponding small section. 2. The air defense simulation system according to claim 1, wherein the user interface means notifies the user of the radar coverage for a specified number of small sections in order of increasing radar coverage. The user interface means includes
Display means for schematically displaying a state where the air defense area is divided into the plurality of small sections;
2. The color change means for distinguishing the display color of the small section displayed on the display means according to the width of the radar coverage calculated by the coverage calculation means. The air defense simulation system described. 2. The air defense simulation system according to claim 1, wherein the user interface unit displays the calculated shape of the radar coverage in the course of the radar coverage calculation by the coverage calculation unit. 2. The air defense simulation according to claim 1, wherein the simulation is realized under an RTI (Run-Time Infrastructure) for executing each service defined in an HLA (High Level Architecture) interface specification. system. The air defense simulation system according to claim 6, wherein the simulation is realized under a distributed processing environment in which a plurality of computers are connected to each other via a communication line.

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