EP1643206A1 - Système et procédé de simulation et programme informatique - Google Patents

Système et procédé de simulation et programme informatique Download PDF

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Publication number
EP1643206A1
EP1643206A1 EP04023534A EP04023534A EP1643206A1 EP 1643206 A1 EP1643206 A1 EP 1643206A1 EP 04023534 A EP04023534 A EP 04023534A EP 04023534 A EP04023534 A EP 04023534A EP 1643206 A1 EP1643206 A1 EP 1643206A1
Authority
EP
European Patent Office
Prior art keywords
missile
target
firing device
orientation
projectile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04023534A
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German (de)
English (en)
Inventor
Adam Tengblad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saab AB
Original Assignee
Saab AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saab AB filed Critical Saab AB
Priority to EP04023534A priority Critical patent/EP1643206A1/fr
Priority to US11/162,870 priority patent/US20060073439A1/en
Publication of EP1643206A1 publication Critical patent/EP1643206A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/26—Teaching or practice apparatus for gun-aiming or gun-laying
    • F41G3/2605—Teaching or practice apparatus for gun-aiming or gun-laying using a view recording device cosighted with the gun
    • F41G3/2611—Teaching or practice apparatus for gun-aiming or gun-laying using a view recording device cosighted with the gun coacting with a TV-monitor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/26—Teaching or practice apparatus for gun-aiming or gun-laying
    • F41G3/2616—Teaching or practice apparatus for gun-aiming or gun-laying using a light emitting device
    • F41G3/2622—Teaching or practice apparatus for gun-aiming or gun-laying using a light emitting device for simulating the firing of a gun or the trajectory of a projectile
    • F41G3/2644—Displaying the trajectory or the impact point of a simulated projectile in the gunner's sight

Definitions

  • the present invention concerns a simulation system comprising at least one virtual projectile/missile firing device having movable directing means to direct a virtual projectile/missile (i.e. a self-propelling weapon, such as a rocket, or a non-self-propelling weapon that is thrown or projected) towards a target and a method for determining the orientation of the directing means of a virtual projectile/missile firing device.
  • a virtual projectile/missile i.e. a self-propelling weapon, such as a rocket, or a non-self-propelling weapon that is thrown or projected
  • US 6386879 describes a gunnery simulation system in which a turret-mounted gun on a shooter tank with a laser scanner transmitter in its barrel emits a laser beam upon a trigger pull.
  • the laser beam is directed towards a target tank based upon a shooter's ranging and tracking using a standard fire computer.
  • the target tank is scanned with the laser beam to measure target azimuth and target elevation with respect to a bore-sight of the gun of shooter tank.
  • Optical receivers mounted on the turret of the target tank detect the laser beam and a system control unit determines the trigger pull time, target azimuth and target super elevation.
  • the laser beam is therefore used both to simulate the ballistic round fired from the gun and to measure the position of the target.
  • a system control unit determines the range to the target tank by comparing a set of GPS coordinates of the two tanks. Based on the target azimuth, the target super elevation, the range to the target and the time of the trigger pull, the system control unit computes an impact point relative to the target tank of a simulated ballistic shell fired from the gun of the first tank at the time of the trigger pull. Casualty assessment is made and the impact point is transmitted back to the shooter for immediate feedback.
  • a disadvantage of such a simulation system is that a lot of equipment has to be mounted on the vehicles that participate in a simulation exercise, which makes installation of the system complex and time consuming. The amount of hardware that is necessary also increases the cost of such a system.
  • Another disadvantage is that optical equipment on the shooter tank may be damaged by optical radiation reflected from optical equipment, such as prisms, mounted on the target tank, especially if the target tank comes too close to the shooter tank.
  • the laser scanner transmitter can consequently not be used tactically without limitation. Furthermore, the gunning of targets outside the field of view of the laser scanner transmitter is not possible.
  • the object of the present invention is to provide a simulation system that allows the orientation of the directing means of a virtual projectile/missile firing device to be accurately determined so as to enable more accurate calculation of the ballistic trajectory of a virtual projectile/missile.
  • a simulation system having the features disclosed in claim 1 namely a system comprising at least one virtual projectile/missile firing device, such as a tank, having movable directing means, such as a gun barrel, to direct a virtual projectile/missile, such as a virtual anti-tank missile, towards a target and means to determine the position of said at least one virtual projectile/missile firing device and the target at the time of firing the virtual projectile/missile and means to capture at least one image of the target scene in front of the directing means as well as means to process the, or each, image so as to determine the orientation of the directing means.
  • at least one virtual projectile/missile firing device such as a tank
  • movable directing means such as a gun barrel
  • the simulation system When a virtual projectile/missile is fired, the simulation system is provided with information concerning how the directing means is oriented from the captured target scene image and with information concerning the geographical position of potential targets in the line of fire of the virtual projectile/missile at the time of firing said virtual projectile/missile.
  • the accurate orientation of the directing means of the virtual projectile/missile firing device can therefore be accurately determined using this information. Accurate determination of the orientation of the directing means allows a more accurate ballistic trajectory of the virtual projectile/missile to be determined and this consequently enhances the realism and improves the effectiveness of the simulation exercise.
  • the inventive simulation system requires relatively little equipment to be mounted on the participants taking part in a simulation exercise. Participants may be moving or stationary vehicles, aircraft or sea-going vessels, movable or stationary weapons, buildings, fixed or movable structures and/or people. This allows the system to be assembled more quickly than a conventional system thus making the inventive system more cost effective. Furthermore if a laser-based distance sensor is used by any of the participants in a simulation exercise, its use does not have to be limited. It is also possible to extend the inventive concept to enable the gunning of objects outside the field of view of the virtual projectile/missile firing device.
  • the simulation system also comprises compass means to provide a preliminary indication of the orientation of the directing means.
  • the rough compass bearing together with its estimated inaccuracy may be used to limit the scope of the target scene image.
  • the image capturing means comprises at least one optic or infrared camera.
  • the image capturing means are optionally arranged to take wide-angle photographs and transform them into digital panoramic images.
  • a software program may optionally used to generate a three-dimensional image of at least part of the target scene.
  • the image capturing means is mounted on the directing means whereby the orientation of the image capturing means with respect to the directing means is known. Alternatively the image capturing means is incorporated into the bore sight of the directing means.
  • the means to determine the position of said at least one virtual projectile/missile firing device and the target comprises a global positioning system (GPS) or differential global positioning system (DGPS).
  • GPS global positioning system
  • DGPS differential global positioning system
  • the simulation system comprises means to log the time at which the, or each, image of a target scene is captured.
  • the simulation system comprises a central network that is arranged to receive/send/store and/or communicate information concerning the position of said at least one virtual projectile/missile firing device and/or the orientation of its directing means and the position and/or orientation of the, or each target to any, or all of the participants in a simulation exercise and optionally to a third party. All of the participants in a simulation exercise therefore transmit time-logged information concerning the position and orientation to the central network.
  • the simulation system comprises assessment means to provide an assessment of injury/damage that would have been caused by the impact of such a projectile/missile in a real situation.
  • Said assessment means may be arranged to activate visible or audible signals to communicate the simulated damage/injury to participants in the simulation exercise or a third party.
  • the assessment means contain range of action data for a certain type, or each type of virtual projectile/missile fired by said at least one virtual projectile/missile firing device versus distance of participants in a simulation exercise from such a device in order to assess the degree of injury/damage that would have been caused by impact of such a projectile/missile in a real situation.
  • the means to evaluate an injury/damage assessment are arranged to be carried any, or all of the participants in a simulation exercise.
  • the present invention also concerns a method for determining the orientation of the directing means of a virtual projectile/missile firing device.
  • the method comprises the steps of determining the position of the virtual projectile/missile firing device and the target, capturing at least one image of the target scene in front of the directing means and processing the, or each, image in order to determine the orientation of the directing means using information concerning the position of the target in the, or each, image.
  • the method also comprises the step of obtaining a preliminary indication of the orientation of the directing means so as to enable the scope of the target scene to be limited.
  • a camera takes at least one photograph of the target scene.
  • the method comprises the step of using a global positioning system (GPS) or differential global positioning system (DGPS) to determine the position of said at least one virtual projectile/missile firing device and the target.
  • GPS global positioning system
  • DGPS differential global positioning system
  • the method comprises the step of logging the time at which the, or each, image of a target scene is captured.
  • the present invention furthermore concerns a computer program containing computer program code means for making a computer or processor execute image processing of at least one target scene provided by a simulation system according to any of the embodiments described above or obtained using a method according to any of the embodiments disclosed herein in order to determine the orientation of the directing means of a virtual projectile/missile firing device.
  • the computer program is arranged to provide an assessment of injury/damage that would have been caused by the impact of such a projectile/missile in a real situation.
  • the computer program is stored by means of a computer-readable medium.
  • the system, the method and the computer program according to the present invention claim is intended for simulating the effect any projectile/missile, such as an anti-tank missile, anti-aircraft missile, anti-sea-craft missile, a chemical, biological or nuclear device, fired from any stationary or moving virtual projectile/missile firing device.
  • projectile/missile such as an anti-tank missile, anti-aircraft missile, anti-sea-craft missile, a chemical, biological or nuclear device, fired from any stationary or moving virtual projectile/missile firing device.
  • FIG. 1 shows a simulation system used to simulate the firing of virtual anti-tank projectiles/missiles from tank 1 at tank 2 during a simulation exercise.
  • Tank 1 comprises a gun barrel 3 that is movable by means of the revolvable turret on which it is mounted and which is arranged to direct a virtual anti-tank projectile/missile towards the target tank 2.
  • the tanks 1 and 2 are equipped with sensors, such as GPS-sensors, turret traversing sensors, a compass to give a rough indication of the compass bearing of the gun barrel, a gyroscope and gun barrel orientation sensors that provide information concerning the elevation and rotation of the gun barrel towards the vertical plane. Additional sensors, such as a wind sensor may also be utilized if such information is to be considered in calculating the ballistic trajectory of the virtual anti-tank projectile/missile.
  • sensors such as GPS-sensors, turret traversing sensors, a compass to give a rough indication of the compass bearing of the gun barrel, a gyroscope and gun barrel orientation sensors that provide information concerning the elevation and rotation of the gun barrel towards the vertical plane. Additional sensors, such as a wind sensor may also be utilized if such information is to be considered in calculating the ballistic trajectory of the virtual anti-tank projectile/missile.
  • Time-logged information 5 concerning the position and orientation of the tanks 1,2 and parts thereof is transmitted to a central network 6. This information 5 is saved so as to be available for searches when information concerning the position of a tank 1,2, at a certain time is requested.
  • a camera 4 is mounted at the bottom of the gun barrel 3 of tank 1 in a fixed and known position with respect to the gun barrel 3.
  • the tank's existing equipment such as a video camera and/or an infrared camera.
  • the camera 4 is used to capture at least one image of the target scene in front of the gun barrel 3 and the image is then processed to accurately determine the orientation of the gun barrel 3.
  • Figure 2 is a flow chart showing a method for determining the orientation of the directing means 3 of a virtual projectile/missile firing device 1 according to a preferred embodiment of the invention.
  • a virtual projectile/missile is fired at the target 2. This event is time-logged and an image from the camera 4 is saved together with information 5 concerning the position and orientation of the virtual projectile/missile firing device 1 and/or parts thereof including the rough compass bearing together with the estimated inaccuracy of the compass bearing.
  • This information 5 is transmitted to the central network 6.
  • a target scene search field is then created on the basis of that information.
  • the position, orientation and type of potential targets that were located within the search field at the time the virtual projectile/missile was fired are identified by their GPS-position, type and orientation.
  • the orientation of the gun barrel 3 is accurately determined by locating the target 2 in the image by means of an image analysis algorithm.
  • the target's position relative to the directing means 3 is then calculated from the results of the image processing.
  • An equation is complied taking the following into consideration; the virtual projectile/missile firing device's (1) position and orientation, the target's (2) position and orientation, the directing means' (3) direction and orientation and the target scene image and the compass bearing of the directing means 3 where said compass bearing is the unknown variable.
  • the orientation of the directing means can be accurately determined.
  • the accuracy of the determination is dependent on the accuracy of the sensors and this gives a more accurate determination of the orientation of the directing means than that given by the compass means.
  • the virtual projectile/missile's ballistic trajectory is calculated which allows the simulation system to determine which, if any, participants in the exercise have been hit. All of the participants taking part in the simulation exercise are informed as to whether they have been hit via the central network 6, for example, and, if so, they are provided with the extent of the injury/damage caused by the hit i.e. the damage that would have been caused had that target been hit in such a way by a real projectile/missile. Such information is for example provided on a visual display unit carried by the participants 1,2 in the simulation exercise.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP04023534A 2004-10-02 2004-10-02 Système et procédé de simulation et programme informatique Withdrawn EP1643206A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04023534A EP1643206A1 (fr) 2004-10-02 2004-10-02 Système et procédé de simulation et programme informatique
US11/162,870 US20060073439A1 (en) 2004-10-02 2005-09-27 Simulation system, method and computer program

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04023534A EP1643206A1 (fr) 2004-10-02 2004-10-02 Système et procédé de simulation et programme informatique

Publications (1)

Publication Number Publication Date
EP1643206A1 true EP1643206A1 (fr) 2006-04-05

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EP04023534A Withdrawn EP1643206A1 (fr) 2004-10-02 2004-10-02 Système et procédé de simulation et programme informatique

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EP (1) EP1643206A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1870661A1 (fr) * 2006-06-19 2007-12-26 Saab Ab Système et procédé de simulation pour déterminer le relèvement compas de moyens de pointage d'un dispositif virtuel de tir pour projectile ou missile
US8046203B2 (en) 2008-07-11 2011-10-25 Honeywell International Inc. Method and apparatus for analysis of errors, accuracy, and precision of guns and direct and indirect fire control mechanisms

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8597025B2 (en) * 2006-11-24 2013-12-03 Trex Enterprises Corp. Celestial weapons orientation measuring system
US8068983B2 (en) * 2008-06-11 2011-11-29 The Boeing Company Virtual environment systems and methods
US9696161B2 (en) * 2008-09-15 2017-07-04 Trex Enterprises Corporation Celestial compass kit
RU2472095C1 (ru) * 2011-07-25 2013-01-10 Алексей Вячеславович Бытьев Способ обучения операторов танкового вооружения
CN112432557B (zh) * 2020-11-19 2022-10-28 中国北方车辆研究所 试验室条件下的坦克射击精度测试系统

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US4308015A (en) * 1979-12-20 1981-12-29 General Electric Company System and method for aircraft gunnery training and accuracy evaluation
DE3122384A1 (de) * 1981-06-05 1982-12-23 Wegmann & Co, 3500 Kassel Geraet mit mehreren ausbildungsplaetzen zur ausbildung von richtschuetzen und/oder kommandanten von kampffahrzeugen
DE3329747A1 (de) * 1983-08-17 1985-03-07 Krauss-Maffei AG, 8000 München Verfahren und vorrichtung zur schiesssimulation
EP0154809A1 (fr) * 1984-02-07 1985-09-18 Krauss-Maffei Aktiengesellschaft Procédé de simulation de combat
EP0155985A2 (fr) * 1983-08-17 1985-10-02 Krauss-Maffei Aktiengesellschaft Procédé et dispositif pour la simulation de tir
DE4026207A1 (de) 1990-08-18 1992-02-20 Telefunken Systemtechnik Verfahren zur darstellung der gefechtsfelddaten von mindestens zwei an einer militaerischen uebung teilnehmenden fahrzeugen
US5215462A (en) * 1991-08-16 1993-06-01 Advanced Technology Systems Weapon simulator
DE19606685A1 (de) 1996-01-26 1997-07-31 Industrieanlagen Betriebsges Verfahren und Vorrichtung zur Gefechtssimulation mit mindestens einem real in einer Umgebung bzw. Gelände operierenden beweglichen Waffensystem und einem quasi ortsfesten Simulator
DE19915222A1 (de) 1999-04-03 2000-10-05 Stn Atlas Elektronik Gmbh Verfahren zur Gefechtsfeldsimulation
US6386879B1 (en) 2000-03-24 2002-05-14 Cubic Defense Systems, Inc. Precision gunnery simulator system and method

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US5382958A (en) * 1992-12-17 1995-01-17 Motorola, Inc. Time transfer position location method and apparatus
DE19729475C1 (de) * 1997-07-10 1998-04-30 C O E L Entwicklungsgesellscha Schußsimulationsverfahren und Vorrichtung zur Durchführung des Verfahrens
ES2199415T3 (es) * 1998-04-20 2004-02-16 Ruag Electronics Simulador para armas tubulares de avancarga.
US6813593B1 (en) * 1999-11-17 2004-11-02 Rafael-Armament Development Authority Ltd. Electro-optical, out-door battle-field simulator based on image processing
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Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209832A (en) * 1978-06-13 1980-06-24 Chrysler Corporation Computer-generated display for a fire control combat simulator
US4308015A (en) * 1979-12-20 1981-12-29 General Electric Company System and method for aircraft gunnery training and accuracy evaluation
DE3122384A1 (de) * 1981-06-05 1982-12-23 Wegmann & Co, 3500 Kassel Geraet mit mehreren ausbildungsplaetzen zur ausbildung von richtschuetzen und/oder kommandanten von kampffahrzeugen
DE3329747A1 (de) * 1983-08-17 1985-03-07 Krauss-Maffei AG, 8000 München Verfahren und vorrichtung zur schiesssimulation
EP0155985A2 (fr) * 1983-08-17 1985-10-02 Krauss-Maffei Aktiengesellschaft Procédé et dispositif pour la simulation de tir
EP0154809A1 (fr) * 1984-02-07 1985-09-18 Krauss-Maffei Aktiengesellschaft Procédé de simulation de combat
DE4026207A1 (de) 1990-08-18 1992-02-20 Telefunken Systemtechnik Verfahren zur darstellung der gefechtsfelddaten von mindestens zwei an einer militaerischen uebung teilnehmenden fahrzeugen
US5215462A (en) * 1991-08-16 1993-06-01 Advanced Technology Systems Weapon simulator
DE19606685A1 (de) 1996-01-26 1997-07-31 Industrieanlagen Betriebsges Verfahren und Vorrichtung zur Gefechtssimulation mit mindestens einem real in einer Umgebung bzw. Gelände operierenden beweglichen Waffensystem und einem quasi ortsfesten Simulator
DE19915222A1 (de) 1999-04-03 2000-10-05 Stn Atlas Elektronik Gmbh Verfahren zur Gefechtsfeldsimulation
US6386879B1 (en) 2000-03-24 2002-05-14 Cubic Defense Systems, Inc. Precision gunnery simulator system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1870661A1 (fr) * 2006-06-19 2007-12-26 Saab Ab Système et procédé de simulation pour déterminer le relèvement compas de moyens de pointage d'un dispositif virtuel de tir pour projectile ou missile
US8944821B2 (en) 2006-06-19 2015-02-03 Saab Ab Simulation system and method for determining the compass bearing of directing means of a virtual projectile/missile firing device
US8046203B2 (en) 2008-07-11 2011-10-25 Honeywell International Inc. Method and apparatus for analysis of errors, accuracy, and precision of guns and direct and indirect fire control mechanisms

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