EP0605290A1 - Optronische Schiesshilfevorrichtung für Handwaffe und Anwendung zum Fortschritt in feindlicher Umgebung - Google Patents

Optronische Schiesshilfevorrichtung für Handwaffe und Anwendung zum Fortschritt in feindlicher Umgebung Download PDF

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Publication number
EP0605290A1
EP0605290A1 EP93403118A EP93403118A EP0605290A1 EP 0605290 A1 EP0605290 A1 EP 0605290A1 EP 93403118 A EP93403118 A EP 93403118A EP 93403118 A EP93403118 A EP 93403118A EP 0605290 A1 EP0605290 A1 EP 0605290A1
Authority
EP
European Patent Office
Prior art keywords
target
weapon
field
tracker
small field
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.)
Granted
Application number
EP93403118A
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English (en)
French (fr)
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EP0605290B1 (de
Inventor
Rémi Fertala
Georges Couderc
Francis Genin
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.)
Thales SA
Original Assignee
Thomson CSF SA
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Filing date
Publication date
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Publication of EP0605290A1 publication Critical patent/EP0605290A1/de
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Publication of EP0605290B1 publication Critical patent/EP0605290B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/14—Indirect aiming means
    • F41G3/16—Sighting devices adapted for indirect laying of fire
    • F41G3/165—Sighting devices adapted for indirect laying of fire using a TV-monitor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/12—Aiming or laying means with means for compensating for muzzle velocity or powder temperature with means for compensating for gun vibrations

Definitions

  • the invention relates to the field of shooting assistance carried out by individual weapon and relates to an optronic aid device for this type of shooting and the application of this device to progression in a hostile environment.
  • the effectiveness of current individual weapons with kinetic projectiles is generally low, due to the very low proportion of shooters capable of achieving aiming and maintaining aiming precise enough to be effective.
  • the part left to the individual gunner is very important and cannot compensate for a very low all-weather capacity of the aiming system.
  • the probability of hitting the target suddenly drops from the shooting range to live fire or combat. This fall is explained by the stress experienced by the shooter, the parameters and the conditions of sight (moving targets, masked, etc.) or the parasitic movement due to the pressure on the trigger at the time of the shooting.
  • Firing assistance systems are known.
  • patent EP 099204 describes a large field system for detection and a small field system for identification, or else two objectives in series with different and variable magnifications, to give two images allowing an aid in the pursuit of moving targets.
  • Other devices such as that disclosed by patent EP 100719, have been devised with a wide field imaging system offset from the line of sight of the weapon which supports the wide field imaging system; the two images are then the subject of a correlation, and an aiming mark is produced in the wide field image so as to indicate the line of sight of the weapon when the correlation is obtained. All these systems provide a pointing aid by improving the aim, but do not solve the problem of the quality of the shot linked to the conditions in which the shot is taken.
  • the invention proposes to solve this problem by considering the shooter and his weapon as a whole, forming a complete system.
  • the probability of a hit on goal is significantly increased by combining, during preparation for shooting, an identification aid with a conditional shooting trigger taking into account the parameters and the aiming conditions: identification aid allows the shooter to authorize the shooting on a target recognized as potentially threatening, and the conditional triggering of the shot makes it possible to hit the target with a high success rate whatever the stress, the training or the training of the bearer of the weapon.
  • the object of the invention relates to an optronic device for assisting in firing by individual weapon for infantryman, equipped with a helmet display comprising a wide field sensor delivering an imaging signal to a display monitor, characterized in that it comprises a small field axis sensor coincident with the aiming axis of the weapon and a target tracker integrated into the weapon, control means and transmission means for controlling passage of large field / small field to the visualization monitor, triggering of target acquisition to the tracker and shooting authorization to comparison means when the acquired target is centered on the axis of the small field, and in that connection means mechanical and electrical between helmet and weapon achieve optronic harmonization between large field and small field imagery.
  • the invention perfectly integrates the different missions that an infantryman must accomplish to progress safely in a hostile environment.
  • the invention thus applies to progression in a hostile environment, for example for infiltration, under optimal security conditions.
  • the means for controlling large field / small field passage, target acquisition and conditional firing triggering are integrated into the weapon and correspond, preferably, to staged positions of the stroke of the trigger tail of the 'armed.
  • the control orders can be transmitted by a transmission bus respectively to the video switch, to the tracker and to the comparison means.
  • the comparison means comprising for example a variometer, a comparator and a memory, can be grouped within a calculation unit.
  • this unit integrates fire correction data.
  • connection means can be constituted by a simple adjustment, made for example by an interlocking between two complementary parts.
  • the electrical connection means can be obtained by retractable contactors.
  • An infantryman who progresses in a hostile environment is equipped with means for identifying potential threats, recognizing real threats and dealing with these threats. It is equipped with a helmet and an individual weapon on which these different means are distributed.
  • the helmet for example, can be equipped with a wide field display conventionally comprising a sensor sensitive to visible and / or infrared radiation, coupled to a miniaturized display monitor, for example a liquid crystal screen.
  • the control commands are transmitted respectively to the video switch 2, to the tracker 5 and to the comparator 7 by a transmission bus 8.
  • the video switch 2 delivers either the wide field imaging signal or the small field imaging signal to the viewing 3.
  • the tracker is a target tracking system well known to those skilled in the art. It is preferably of the hot spot or barycentric type, since it is well suited to detecting mobile threats.
  • a target "hooked" by the tracker 5 its coordinates in the small field are evaluated in the distance meter 9, then stored in a memory 10. The coordinates of the various non-threatening targets and accumulated in this memory are used in order to avoid subsequent snagging on this type of target.
  • the comparator associates the coordinates of the target provided by the distance meter and those of a reference, for example those (0,0) of the center of the field which materializes the axis of the weapon.
  • the comparator 7 When the firing authorization order is transmitted to the comparator 7, the latter is made active and sends a firing trigger signal to the firing means 11 of the weapon only when the coordinates of the target are substantially equal to those of the reference, but only in this case.
  • a trigger is therefore a conditional firing trigger.
  • the comparator, the distance meter and the memory can be grouped within a calculation and management unit 12.
  • This unit receives the information coming from the transmission bus 8 and from the tracker 5 and, using programming conventional, delivers control signals adapted to the tracker 5 and to the firing means 11. Thus, when the coordinates of a target are already stored, the calculation unit commands the reset of the tracker.
  • conditional triggering firing means it is then advantageous to take advantage of the implementation of the conditional triggering firing means, to take account of corrections to be made due to the defects of the weapon (for example misalignment) or the firing conditions (for example, increase in shoot).
  • This electronic compensation is initialized by a prior calculation of the coordinates of the reference to be taken into account. Such predetermination is carried out by the management unit with the aid of programming adapted from the data supplied by the infantryman.
  • FIG. 2 illustrates an example of installation of the various means implemented by the invention, as they appear in operational use.
  • An infantryman F is equipped with a helmet C provided with a visual composed of the wide field sensor 1 coupled to a box B containing the circuit for processing the imaging signal delivered by the wide field sensor 1.
  • the box also includes the monitor display forming an image from the video signal supplied by the processing circuit.
  • Such a display assembly and its incorporation into a helmet are well known to those skilled in the art.
  • the infantryman's weapon A is equipped with an optical system 20 with a small field sensor which also delivers an imaging signal to the processing circuit via a switch, as described above.
  • System axis optic 20 is aligned by construction, as perfectly as possible, with the firing axis of the weapon in order to avoid as far as possible systematic firing errors.
  • the transition from large field visualization to small field visualization is triggered in the preferred embodiment of the invention by an adapted positioning of the trigger trigger tail 21.
  • the trigger has different stepped and stable positions obtained successively by increasing significantly the pressure exerted.
  • the positioning of the trigger in these different positions is made reversible by construction so that one can pass from one position to another.
  • a mechanical adjustment makes it possible to harmonize the axes of sight large field and small field. Such harmonization simply aims to avoid a long (if not impossible) search in the small field for objects previously detected in the large field. This harmonization therefore does not require a high degree of precision, and sufficient adjustment is obtained by fitting the rear of the small field optical system 20 into a contour of the front part 22 of the housing B of the helmet display.
  • Retractable contactors can be used to transmit the bus commands and the signal from the small field sensor to the video switch located in the helmet display housing.
  • FIG. 3a represents the image I1 formed by the wide field sensor on the display monitor. This image allows the infantryman to locate and assess, especially at night with a large field sensor sensitive to infrared radiation or associated with a light intensifier. Visual identification of potential targets, such as targets surrounded by circles C1, C2, C3 is then facilitated. On the image I1 also appears in dotted line the outline C ′ of the image obtained in small field before magnification.
  • an Friend-Enemy identification (or IFF, abbreviated from "Identification of a Friend from a Foe” in English) allows you to select the target (s) not friends (enemies or other targets) and thus avoid fratricidal fire.
  • the IFF function is well known; it is conventionally implemented, in the embodiment shown, from laser source transmitters / receivers or laser diodes arranged on the helmet (identified by the references E1, in FIG. 2). The infantryman can transmit when the called party is brought to the center of the detection field, as illustrated by the target C2 in FIG. 3b.
  • the caller After interrogation, according to a sequence of laser pulses coded in number and in duration, the caller knows according to the answer if the called party is a friend or "something else". If the called party is a friend, the search continues by bringing another potential target to the central area. If the called party is not a friend, they may not be hostile and the process continues with a target recognition phase in the small field.
  • the passage in small field, triggered at the trigger of the weapon, is achieved by means such as those described above.
  • the passage in small field is done like a zoom since the axes large field and small field are harmonized.
  • FIG. 4 it clearly appears that in the small field the image I2 corresponds substantially to the central area C ′ of the large field image I1 shown in FIG. 3b, improved in resolution due to the magnification.
  • the passage in the small field makes it possible to recognize one of the targets as potentially threatening, for example C2, then to use the tracker to "hang" the target thus recognized.
  • Figure 4 appears the rectangular trace R of the tracker triggered by a new pressure on the trigger.
  • Automatic tracking systems are well known in fire control systems (described for example in patent FR 2 393 322 or FR 2 406 831) and used in combination with radar, lidar or sonar systems. When the tracker is of the barycentric type, it therefore hangs on the barycenter of a particular contrast area different from its immediate environment.
  • the tracker can very well catch on a false target or on a target already recognized as not threatening.
  • the management unit described above or the shooter resets it until it is hooked onto the threatening target C2.
  • the reset is obtained by returning to the anterior position of the trigger corresponding to the passage small field.
  • conditional firing authorization consists in triggering the firing only when the center of the track R of the tracker is in the line of sight of the weapon, materialized by a cross X in the center of the small field image I2 in FIG. 4.
  • the different trigger positions corresponding to the different commands are therefore, in the embodiment, four in number, neutral large field position, small field position, target acquisition position and shooting authorization position.
  • other positions can be envisaged, such as for example an ultimate security position after that of the authorization to fire.
  • Other control means may also be suitable (sensitive keys, different orientations of a switch, etc.).
  • the large field and small field sensors are advantageously of the thermal camera type.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP19930403118 1992-12-30 1993-12-21 Optronische Schiesshilfevorrichtung für Handwaffe und Anwendung zum Fortschritt in feindlicher Umgebung Expired - Lifetime EP0605290B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9215917A FR2699996B1 (fr) 1992-12-30 1992-12-30 Dispositif optronique d'aide au tire par arme individuelle et application à la progression en milieu hostile.
FR9215917 1992-12-30

Publications (2)

Publication Number Publication Date
EP0605290A1 true EP0605290A1 (de) 1994-07-06
EP0605290B1 EP0605290B1 (de) 1997-01-22

Family

ID=9437279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930403118 Expired - Lifetime EP0605290B1 (de) 1992-12-30 1993-12-21 Optronische Schiesshilfevorrichtung für Handwaffe und Anwendung zum Fortschritt in feindlicher Umgebung

Country Status (3)

Country Link
EP (1) EP0605290B1 (de)
DE (1) DE69307679D1 (de)
FR (1) FR2699996B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787566A1 (fr) * 1998-12-18 2000-06-23 Sextant Avionique Procede et systeme d'aide a la visee pour arme legere
WO2012131548A1 (en) 2011-03-28 2012-10-04 Smart Shooter Ltd. Firearm, aiming system therefor, method of operating the firearm and method of reducing the probability of missing a target
EP2746716A1 (de) * 2012-12-18 2014-06-25 TrackingPoint, Inc. Optische Vorrichtung mit einem Modus zur Gruppierung von Schüssen zur Verwendung mit präzisionsgeführten Feuerwaffen
US9557130B2 (en) 2014-05-27 2017-01-31 Israel Weapon Industries (I.W.I) Ltd. Apparatus and method for improving hit probability of a firearm
EP3819585A1 (de) * 2019-11-11 2021-05-12 Israel Weapon Industries (I.W.I.) Ltd. Schusswaffe mit automatischer zielerfassung und schiessen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10907934B2 (en) 2017-10-11 2021-02-02 Sig Sauer, Inc. Ballistic aiming system with digital reticle
US11454473B2 (en) 2020-01-17 2022-09-27 Sig Sauer, Inc. Telescopic sight having ballistic group storage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1605027A (en) * 1977-04-07 1981-12-16 Emi Ltd Aiming arrangements
GB2175074A (en) * 1985-05-16 1986-11-19 British Aerospace Aiming systems
US4786966A (en) * 1986-07-10 1988-11-22 Varo, Inc. Head mounted video display and remote camera system
GB2255398A (en) * 1991-05-02 1992-11-04 Gec Ferranti Defence Syst A ballistics system.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1605027A (en) * 1977-04-07 1981-12-16 Emi Ltd Aiming arrangements
GB2175074A (en) * 1985-05-16 1986-11-19 British Aerospace Aiming systems
US4786966A (en) * 1986-07-10 1988-11-22 Varo, Inc. Head mounted video display and remote camera system
GB2255398A (en) * 1991-05-02 1992-11-04 Gec Ferranti Defence Syst A ballistics system.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787566A1 (fr) * 1998-12-18 2000-06-23 Sextant Avionique Procede et systeme d'aide a la visee pour arme legere
WO2000037875A1 (fr) * 1998-12-18 2000-06-29 Thomson-Csf Sextant Procede et systeme d'aide a la visee pour arme legere
WO2012131548A1 (en) 2011-03-28 2012-10-04 Smart Shooter Ltd. Firearm, aiming system therefor, method of operating the firearm and method of reducing the probability of missing a target
EP2746716A1 (de) * 2012-12-18 2014-06-25 TrackingPoint, Inc. Optische Vorrichtung mit einem Modus zur Gruppierung von Schüssen zur Verwendung mit präzisionsgeführten Feuerwaffen
US9557130B2 (en) 2014-05-27 2017-01-31 Israel Weapon Industries (I.W.I) Ltd. Apparatus and method for improving hit probability of a firearm
EP3819585A1 (de) * 2019-11-11 2021-05-12 Israel Weapon Industries (I.W.I.) Ltd. Schusswaffe mit automatischer zielerfassung und schiessen
AU2020267163B2 (en) * 2019-11-11 2022-02-17 Israel Weapon Industries (I.W.I) Ltd. Firearm with automatic target acquiring and shooting
US12007188B2 (en) 2019-11-11 2024-06-11 Israel Weapon Industries (I.W.I) Ltd Firearm with automatic target acquiring and shooting

Also Published As

Publication number Publication date
FR2699996A1 (fr) 1994-07-01
EP0605290B1 (de) 1997-01-22
DE69307679D1 (de) 1997-03-06
FR2699996B1 (fr) 1995-02-24

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