EP1580516A1 - Vorrichtung und Verfahren zum Auswerten des Zielverhaltens einer Waffe - Google Patents

Vorrichtung und Verfahren zum Auswerten des Zielverhaltens einer Waffe Download PDF

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Publication number
EP1580516A1
EP1580516A1 EP04075955A EP04075955A EP1580516A1 EP 1580516 A1 EP1580516 A1 EP 1580516A1 EP 04075955 A EP04075955 A EP 04075955A EP 04075955 A EP04075955 A EP 04075955A EP 1580516 A1 EP1580516 A1 EP 1580516A1
Authority
EP
European Patent Office
Prior art keywords
weapon
data
aiming
time interval
given time
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Withdrawn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
EP04075955A
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English (en)
French (fr)
Inventor
Peter Isoz
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 EP04075955A priority Critical patent/EP1580516A1/de
Publication of EP1580516A1 publication Critical patent/EP1580516A1/de
Withdrawn legal-status Critical Current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
    • 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
    • F41G3/2683—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 with reflection of the beam on the target back to the weapon
    • 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
    • F41G3/30—Gun-laying apparatus

Definitions

  • the invention relates to a device at direct fire weapon and a method for evaluating weapon aiming behavior when shooting at a real target.
  • EP 0 961 913 shows a missile firing simulator for training firers in the firing of missiles and immersing them in a virtual space and offering them different scenarios.
  • the fire station of the missile has a three-dimensional position sensor positioned within the launch tube. This sensor makes it possible to determine the movements of the firing station during the fire exercise.
  • the 3D position sensor sends the data relating to these movements to the central unit, which analyses them and derives there from the effects on the simulated flight.
  • EP 0 985 899 describes a compact video image recording device mountable on a gun.
  • the device is useful for recording video images before and after firing of the gun and is mounted on the gun such that the viewing area of the camera includes the target area of the gun.
  • a typical application for the device is a gun carried by police officers, wherein it can be desirable to have a video record which would show the scene as viewed by the police officer at the time the gun was fired.
  • the device is arranged so as to repeatedly store video image data within a semiconductor memory within the video recording device and in response to detection of discharge of the weapon, preserving in said memory video image data stored preceding and subsequent discharge of the weapon. This device is intended to record the general judgment of the police officers rather than the tracking of the aiming procedure of the gun.
  • GB 2 141 810 shows an apparatus for training a gunner.
  • the apparatus comprises a viewing device which fits over the eyepieces of a gun sight.
  • the viewing device is arranged to combine the images from both eyepieces to be viewed by a video camera linked to the viewing device.
  • the image viewed by the camera together with pictorial information representing the operation of the gunner's controls and the movement of the gun is transmitted to an instructor who is able to view on a display precisely the same scene as viewed by the gunner together with the additional information indicating how he is operating the gun controls and how the gun is moving.
  • a recorder is provided to enable playback and analysis of the training exercise.
  • the gunner manipulates controls in order to produce x and y demand signals, wherein the x demand signal denotes the desired rate of change of azimuth of the gun and the y demand signal denotes the desired rate of change of elevation of the gun. Said demand signals are fed to a gun servo arranged to execute the demanded changes in azimuth and elevation.
  • the above mentioned pictorial information is a pictorial representation of said x and y demand signals.
  • the video camera of GB 2 141 810 can be used in combat training. However, analyzing the video film in order to evaluate the aiming behavior is heavy and time consuming.
  • One object of the invention is to provide a simple way of evaluating the aiming behavior which is applicable also for weapon types not controlled with a servomotor and both in dedicated shooting training and in combat training.
  • a device at a direct fire weapon comprising means for continuously sensing and registering the sensed angular motion of the weapon or weapon sight, means for detecting fire of the weapon and processing means arranged to upon detection of fire of the weapon extract data relating to the aiming behavior from the registered angular motion for a given time interval before and after firing.
  • the device is easy to install on the weapon. Further, the device can be designed to be small and light-weighted, which is important as the device should have as little physical influence on the weapon as possible.
  • the means for continuously sensing and registering angular motion of the weapon are in one embodiment of the invention arranged to sense angular velocity and/or acceleration and comprise for example a gyro, an accelerometer or another type of motion sensing device.
  • the motion sensing and registering device is arranged to deliver data from which at least velocity and acceleration data is directly extractable and from which position data can be derived using known integration methods.
  • a characterizing feature of the means for sensing angular motion is that the sensed motion is not related to the actual target engaged. After fire of the weapon on the other hand, a hit point can be determined, to which the extracted data can be related.
  • the weapon is provided with a laser based weapon simulator of the above mentioned type, arranged to provide the coordinates for the hit point.
  • the processing means can then be arranged to extract position data from the data relating to the aiming procedure using known integration methods and to relate the extracted position data to the determined hit point.
  • the processing of the data includes evaluation of at least the acceleration data for example in order to get a numerical value which grades the aiming performance of the gunner.
  • the means for detecting fire of the weapon can be arranged to detect trigger pull or sense discharge of a shot.
  • the invention also relates to a method for evaluating the aiming behavior when shooting at a real target according to claim 10.
  • a real target is defined as a non-virtual target, thus a target which is not computer or video generated.
  • the real target is physical, can be movable and is for example a player (soldier, vehicle etc) participating in combat training.
  • a gyro 3 is mounted onto the barrel 2 of a gun 1.
  • the shown gun 1 is a rifle but the invention is also applicable to other types of weapons, such as vehicle mounted guns like tank guns, anti-tank missiles or any type of device where aiming is critical.
  • the weapon can also be provided with a laser based shooting simulator.
  • the gyro 3 is mounted on the gun 1 in such a way that the motions in aiming of the gun are sensed. At least acceleration data from the gyro is fed to a processing unit 4 but also velocity data could be fed to the processing unit 4. In another example the gyro is substituted with an accelerometer or another type of sensor delivering data from which at least acceleration data can be extracted.
  • Means are provided (not shown) for sensing pull of a trigger 5 of the gun or for sensing discharge of a shot.
  • the pull of the trigger is directly detected from the firing system. In that case a signal from the firing system indicating pull of the trigger is fed to the processing unit 4.
  • discharge of a shot is detected for example by using a chock sensor or flame sensor or a combination of both. In that case a signal from the sensor(s) indicating discharge of the shot is fed to the processing unit 4 upon discharge.
  • the processing unit 4 is arranged at the gun 1, in which case the gyro 3 and the means for sensing the pull of the trigger are connected to the processing unit 4 by means of electrical wires 6,7.
  • the processing unit is arranged in a cloth such as a vest or harness worn by the gunner.
  • the gyro and means for sensing the pull of the trigger or discharge are connected to a transmitter arranged to transmit the data to the processing unit for example by way of radio communication.
  • the processing unit at least in part is arranged in a central unit to which a number of gunners communicate. This example will be more described below.
  • the processing unit 4 comprises a first in-first out register 8 arranged to repeatedly store the gun motion data received from the gyro 3.
  • the content of the register 8 is preserved in a memory 9.
  • the size of the register 8 and the delay time D are for example chosen such that data stored ten seconds before the trigger pull/discharge and two seconds subsequent the trigger pull/discharge is preserved.
  • the time interval between stored registered data is for example 0.05-0.5 seconds.
  • the data of the memory 9 is processed in an evaluating unit 11.
  • the evaluating unit 11 is arranged to evaluate only acceleration data in an x direction and in a y direction.
  • the acceleration data is a good indicator of the aiming performance as the acceleration is relatively independent of the movement of the target.
  • an evaluation algorithm of the evaluation unit comprises determining whether the following two conditions are fulfilled. First it is determined if the acceleration is monotonically decreasing within a first time period before the trigger pull/discharge.
  • the first time period extends for example between ten and two seconds before trigger pull/discharge. If the acceleration is monotonically decreasing, the first condition is fulfilled. Secondly, it is determined if a preset acceleration value is exceeded within a second time period around the trigger pull/discharge. The second time period extends between two seconds before and two second after trigger pull/discharge, for example. If the preset acceleration value is not exceeded, the second condition is fulfilled. If the two conditions are fulfilled, the evaluation unit is arranged to generate a signal indicating that the aiming behavior was OK. On the other hand, if only one of the conditions or none of them is fulfilled, the evaluation unit is arranged to generate a signal indicating that the aiming behavior was NOT OK. In the example shown wherein the processing unit is arranged at the gun, the OK signal is fed to a green lamp 12 at the gun and the NOT OK signal is fed to a red lamp 13 at the gun. Thereby the gunner gets direct feed-back on the aiming behavior.
  • the starting point for the first time period is at discovery of the target.
  • the evaluation unit is arranged to find a peaking maximum value in the acceleration data. This peak most likely represents the time of discovery of the target.
  • the evaluation unit is also arranged to determine the time period between discovery of the target and discharge of the gun. A time difference is then calculated between the time of the peak in acceleration data and the time of the trigger pull/discharge.
  • the processing unit is arranged at the gun, data related to the time difference can be fed to a display 14 mounted at the weapon giving the gunner a direct feed-back regarding the aiming time.
  • the memory 9 is sized to contain data from all aiming procedures during a combat or shooting exercise. After the exercise, the data of the memory 9 can then be loaded into a tracking equipment of the central unit or transmitted thereto for example by way of radio communication via an antenna 15. In another example, wherein the capacity of the memory 9 is smaller, the data of the memory 9 is transmitted to the central unit each time new data enters the memory 9.
  • OK/NOT OK indications or numerical values from the evaluation is to use these indications or values together will all aiming procedure data from one or several guns in a log and then for an evaluator or trainer to quickly do statics or sort out which aiming procedures to study further.
  • the tracking equipment comprises a display 16 arranged to show the data from each aiming procedure as a diagram, wherein the y axles denote the x and y acceleration data, respectively and wherein the x axles denotes time.
  • the x-axle denotes the acceleration data in the x direction
  • the y axle denotes the acceleration data in the y direction.
  • the gyro 3 is mounted onto the barrel 2 of the gun 1.
  • the gyro 3 is mounted on the gun 1 in such a way that the motions in aiming of the gun are sensed.
  • Position, velocity and acceleration data from the gyro is fed to the processing unit 4.
  • a laser based shooting simulator 17 is mounted onto the barrel of the gun.
  • the shooting simulator can be of known type. In one example suitable for heavy weapons, the shooting simulator is arranged to scan an area in front of the simulator with a laser beam. Target systems are provided with reflectors arranged to reflect the laser beam. Upon detection of a reflected beam, the shooting simulator unit 17 is arranged to process the beam received in order to determine a hit point. A signal representing the hit point is feed from the shooting simulator unit 17 to the evaluation unit 11.
  • the processing unit 4 is arranged at the gun 1, in which case the gyro 3 and the means for sensing the pull of the trigger 5 are connected to the processing unit 4 by means of electrical wires 6,7.
  • the processing unit 4 comprises the first in-first out register 8 described above arranged to repeatedly store the gun motion data received from the gyro 3.
  • the content of the register 8 is preserved in the memory 9.
  • the delay 10 function can be used.
  • the data of the memory 9 is processed in the evaluating unit 11.
  • the evaluating unit 11 is arranged evaluate the position data of the memory.
  • the evaluation includes using the above mentioned determined target hit point and relate all position data of said memory to said hit point. Also here, the starting point for evaluating data could be at discovery of the target.
  • the display 16 at the central unit is arranged to show the data from each aiming procedure as a diagram, wherein the y axles denote the x and y position data, respectively and wherein the x axles denotes time.
  • the x-axle denotes the position data in the x direction and the y axle denotes the position data in the y direction.
  • the aiming procedure is in the embodiment of fig 6 preferably shown as motion picture display, wherein the aiming point can be followed.
  • the evaluation unit can be arranged in the central unit instead of distributed at the shooter and in another example, an evaluation unit is arranged both at the gun and in the central unit.

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)
EP04075955A 2004-03-26 2004-03-26 Vorrichtung und Verfahren zum Auswerten des Zielverhaltens einer Waffe Withdrawn EP1580516A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04075955A EP1580516A1 (de) 2004-03-26 2004-03-26 Vorrichtung und Verfahren zum Auswerten des Zielverhaltens einer Waffe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04075955A EP1580516A1 (de) 2004-03-26 2004-03-26 Vorrichtung und Verfahren zum Auswerten des Zielverhaltens einer Waffe

Publications (1)

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EP1580516A1 true EP1580516A1 (de) 2005-09-28

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EP04075955A Withdrawn EP1580516A1 (de) 2004-03-26 2004-03-26 Vorrichtung und Verfahren zum Auswerten des Zielverhaltens einer Waffe

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EP (1) EP1580516A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012013284A (ja) * 2010-06-30 2012-01-19 Hitachi Kokusai Electric Inc 射撃訓練装置
ITBS20120179A1 (it) * 2012-12-14 2014-06-15 Beretta Armi Spa Sistema di rilevazione della modalità di esecuzione di un esercizio di tiro
US8818829B2 (en) 2007-07-30 2014-08-26 International Business Machines Corporation Method and system for reporting and relating firearm discharge data to a crime reporting database
ES2589643A1 (es) * 2015-05-14 2016-11-15 José Bautista FERNÁNDEZ CALVO Sistema y método de caza sin muerte
ES2658387A1 (es) * 2017-03-30 2018-03-09 Armen Technology, S.L. Dispositivo electrónico de puntería para lanzador de proyectiles
WO2022157818A1 (ja) * 2021-01-19 2022-07-28 株式会社ソニー・インタラクティブエンタテインメント 操作装置、操作システム及び操作方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991043A (en) * 1996-01-08 1999-11-23 Tommy Anderson Impact position marker for ordinary or simulated shooting

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991043A (en) * 1996-01-08 1999-11-23 Tommy Anderson Impact position marker for ordinary or simulated shooting

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8818829B2 (en) 2007-07-30 2014-08-26 International Business Machines Corporation Method and system for reporting and relating firearm discharge data to a crime reporting database
US9159111B2 (en) 2007-07-30 2015-10-13 International Business Machines Corporation Method for reporting and relating firearm discharge data to a crime reporting database
JP2012013284A (ja) * 2010-06-30 2012-01-19 Hitachi Kokusai Electric Inc 射撃訓練装置
ITBS20120179A1 (it) * 2012-12-14 2014-06-15 Beretta Armi Spa Sistema di rilevazione della modalità di esecuzione di un esercizio di tiro
WO2014091324A1 (en) * 2012-12-14 2014-06-19 Fabbrica D'armi Pietro Beretta S.P.A. Detection system of a method of performing a shooting exercise
ES2589643A1 (es) * 2015-05-14 2016-11-15 José Bautista FERNÁNDEZ CALVO Sistema y método de caza sin muerte
ES2658387A1 (es) * 2017-03-30 2018-03-09 Armen Technology, S.L. Dispositivo electrónico de puntería para lanzador de proyectiles
WO2022157818A1 (ja) * 2021-01-19 2022-07-28 株式会社ソニー・インタラクティブエンタテインメント 操作装置、操作システム及び操作方法

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