EP3465069B1 - Dispositif et méthode de simbleautage - Google Patents

Dispositif et méthode de simbleautage Download PDF

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Publication number
EP3465069B1
EP3465069B1 EP17729418.8A EP17729418A EP3465069B1 EP 3465069 B1 EP3465069 B1 EP 3465069B1 EP 17729418 A EP17729418 A EP 17729418A EP 3465069 B1 EP3465069 B1 EP 3465069B1
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EP
European Patent Office
Prior art keywords
camera
boresighting
barrel
deflection
line
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.)
Active
Application number
EP17729418.8A
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German (de)
English (en)
French (fr)
Other versions
EP3465069A1 (fr
Inventor
Bernard CLERMONT
Pierre Balthasart
Igor LOISELLE
Tristan LILET
Philippe Laurent
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.)
John Cockerill Defense SA
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John Cockerill Defense SA
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Publication of EP3465069A1 publication Critical patent/EP3465069A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/32—Devices for testing or checking
    • F41G3/323—Devices for testing or checking for checking the angle between the muzzle axis of the gun and a reference axis, e.g. the axis of the associated sighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/32—Devices for testing or checking
    • F41G3/326—Devices for testing or checking for checking the angle between the axis of the gun sighting device and an auxiliary measuring device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/54—Devices for testing or checking ; Tools for adjustment of sights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/22—Aiming or laying means for vehicle-borne armament, e.g. on aircraft

Definitions

  • the present invention relates to a method and a device for aligning the line of sight with the line of fire, commonly referred to as a beading device, for weapon systems, preferably of large caliber (75 mm to 140 mm).
  • a misalignment between the line of fire and the line of sight is detrimental to accurately hitting a target.
  • a first source of misalignment is the physical deformation of the barrel, commonly called sag, which appears naturally and inevitably, both horizontally and vertically, following the relatively high weight of the barrel as well as external conditions (rain, wind, sunshine, etc.). .). This deformation leads to a parallelism error between the line of fire coming from the barrel of the barrel and the line of fire emanating from the muzzle of the barrel.
  • a second source of misalignment are the shocks and vibrations undergone during rolling and firing which lead to a drift with respect to the previously calibrated alignment.
  • MRS Microzzle Reference System
  • These devices described among others in the document US 4,665,795 generally consist of a laser transmitter-receiver located at the base of the barrel and a mirror placed at the level of the muzzle of the barrel. The transmitter sends an infrared laser beam to the mirror which is then reflected back to the receiver. Depending on the position of the laser received by the receiver, electronic equipment makes it possible to automatically calculate corrections in azimuth and elevation which are then added to the ballistic corrections at the level of the fire control system.
  • a disadvantage of these devices is that the mechanical stability of the mirror is very complex to ensure. Also, detecting the barrel arc via laser measurements can make the system detectable by the enemy. Then, even if the MRS type devices make it possible to correct variations in the arc of the barrel, an initial alignment remains necessary.
  • the document FR 2 505 477 discloses a simbleautage device which comprises on the barrel a deflection target formed of a mirror on which is projected a reticle, a housing comprising optics and an image detector which are, on the one hand, the reflected image of the reticle and, on the other hand, in the presence of a filter, the reflected image of a distant object. It is again a system vulnerable to wear, unstable with a risk of degradation of the precision of the optics in the long run.
  • the document EP 1 510 775 describes a device with a camera having two focus levels. This camera is inserted in the chamber of the gun during the operations of simbleautage. A first adjustment at the level of the muzzle of the barrel makes it possible to estimate its angular deviation (X, Y). A second focus set at infinity makes it possible to observe an object located at a distant distance and therefore to bring the view of the optics on the same reference. Simbling is achieved by combining these two operations.
  • the document EP 1 616 145 discloses a single-operator sandblasting device located inside the turret. A camera is pushed to the muzzle of the barrel from inside the barrel. As this camera is located at the level of the muzzle, it implicitly takes into account the arc of the barrel.
  • the object of the present invention is to provide a device and a method of sandblasting which only require a single operator located inside the turret.
  • the present invention also relates to a weapon system comprising the simbleautage device as described above, in which the casing is positioned on the sleeve of the barrel and the said deflection target is positioned near or on the periphery of the brake muzzle of the cannon.
  • the deflection target can be added or integrated into the muzzle brake.
  • the present invention also relates to the armored vehicle provided with this weapon system.
  • the present invention relates to a computer program adapted to implement the method described above and to the computer-readable data recording means comprising this program.
  • the present invention relates to a sibleautage device and to the method implemented using said device.
  • the device according to the invention is intended preferentially for large caliber weapon systems (75 mm to 140 mm). It could nevertheless be used for small and/or medium caliber weapon systems subject to certain arrangements linked to the steric hindrance at the level of the armaments associated with said calibers.
  • the simbleautage device is shown in Figure 1 on a turret 1.
  • the device comes in two parts positioned at separate locations. It comprises, on the one hand, a casing 2 and, on the other hand, a deflection target 3.
  • the casing 2 is positioned outside the barrel 4 and, preferably, mounted on the sleeve 5 of the barrel 4.
  • Case 2 visible in more detail at Figure 2 , has two 7.8 optical systems each equipped with a camera.
  • a first camera 7, called a deflection camera is intended to correct the misalignment resulting from the deflection of the barrel, ie. misalignment between the line of fire from the scabbard and that from the muzzle.
  • a second camera 8 called a simbleautage
  • the two cameras are mounted in one piece.
  • Simbleautage and deflection cameras have the characteristic of having a fixed focus respectively at infinity and at the level of the muzzle brake as illustrated in the Figure 1 .
  • the one-piece mounting with a fixed focus for each camera has the advantage that no moving parts are required in the housing, which helps to ensure its mechanical stability against the shocks and vibrations associated with shooting.
  • the housing design is athermally designed so that the position of the optical axis of the cameras is not sensitive to temperature variations.
  • the device comprises the deflection target 3 which is located at the level of the muzzle brake 6, ie. at the end of the barrel from which the ammunition exits.
  • This deflection target 3 can be either an additional part which is placed at the level of the fixing of the muzzle brake, or it can be directly integrated on the periphery of the latter. This latter alternative is preferred to guarantee the mechanical stability of the device.
  • the deflection target is provided with any geometric figure which serves as a reference point for the optical system 7. This figure is indeed material on the target, ie. that it is integrated on the target. In other words, it is not a figure projected onto a mirror acting as a deflection target.
  • the simbleautage method according to the invention takes into account the two causes of misalignment mentioned above, namely the deflection of the barrel and the drift between the line of fire and the line of sight following the shocks caused by the use of the vehicle and of its weapon system.
  • the method is based on three steps.
  • the optical system equipped with the deflection camera is used to determine the parallelism error between the line of fire coming from the sleeve and that coming from the muzzle brake. More precisely, the first optical system 7 of the housing detects the position of the deflection target via image processing such that the system can deduce vertically and horizontally the deflection of the barrel with respect to a reference position obtained during the calibration of the device.
  • the displacement in X and in Y namely the delta X ( ⁇ X) and the delta Y ( ⁇ Y) is calculated with respect to a reference materialized by the geometric figure which is, preferably, a circle 9 on the deflection target 3 (see Figure 3 ).
  • a ⁇ X and a ⁇ Y are thus calculated with respect to the starting position of the center of the circle.
  • the system deduces the parallelism error between the line of fire at the level of the sleeve and the line of fire at the level of the muzzle brake.
  • the algorithm used to detect the geometric figure is based on edge detection according to Canny's method.
  • a Hough transform makes it possible to obtain a first estimate of the position of the reference circle. Then, an algorithm refines the results obtained at the sub-pixel level.
  • the optical system fitted with the borehole camera is used to determine the parallelism error between the line of fire at the level of the sheath and the line of sight.
  • the camera whose axis is parallel to the line of fire at the level of the sheath and whose focus is adjusted to infinity provides an image of a distant object which is directly compared to that provided by the optic(s). s) 10 of the turret sighting system(s) ( Figure 1 ). It is thus possible to deduce the parallelism error between the line of fire at the level of the sheath and the optical line of the sighting system(s).
  • the two parallelism errors are accumulated and sent directly to the turret sighting system(s).
  • the device Prior to these steps, the device must be calibrated. This calibration is performed when the housing and the target are mounted on the turret. Thereafter, no new calibration is required as long as the box and the deflection target are not moved. Calibration is performed using a conventional mouthpiece. This calibration consists of aligning the position of the reticle in the spotting camera with the point observed by the muzzle scope. This operation is carried out by one of the occupants of the turret via his control screens. When this alignment is reached, the reference position of the geometric figure is calculated and stored by the device. During subsequent simbleautages, the device measures in the first step the displacement of the geometric figure with respect to that obtained during the calibration. This difference is then transferred to the simbleautage camera by moving the position of its reticle there.
  • the sandblasting is carried out by a single operator located inside the turret, without deploying any tool. There is therefore no cumbersome and de facto slow handling. This absence of manipulation also guarantees a better repeatability of the measurements. In addition, it allows to carry out the debugging in the middle of a mission.
  • the deflection target and its geometric figure are indeed material. It is not a mirror onto which a reticle is projected.
  • the device according to the invention does not require layers of mirrors which entail risks of desynchronization and require systematic calibrations.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Telescopes (AREA)
EP17729418.8A 2016-05-31 2017-05-29 Dispositif et méthode de simbleautage Active EP3465069B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2016/5399A BE1023708B1 (fr) 2016-05-31 2016-05-31 Dispositif et méthode de simbleautage
PCT/EP2017/062890 WO2017207487A1 (fr) 2016-05-31 2017-05-29 Dispositif et méthode de simbleautage

Publications (2)

Publication Number Publication Date
EP3465069A1 EP3465069A1 (fr) 2019-04-10
EP3465069B1 true EP3465069B1 (fr) 2022-06-29

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EP17729418.8A Active EP3465069B1 (fr) 2016-05-31 2017-05-29 Dispositif et méthode de simbleautage

Country Status (11)

Country Link
US (1) US11435164B2 (he)
EP (1) EP3465069B1 (he)
KR (1) KR102323309B1 (he)
CN (1) CN109154486B (he)
BE (1) BE1023708B1 (he)
CA (1) CA3020892A1 (he)
ES (1) ES2925194T3 (he)
IL (1) IL263330B (he)
PL (1) PL3465069T3 (he)
SG (1) SG11201809069SA (he)
WO (1) WO2017207487A1 (he)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11060819B2 (en) 2019-05-23 2021-07-13 General Dynamics Mission Systems—Canada Armored vehicle, method, and weapon measurement system for determining barrel elevation
CN110595282A (zh) * 2019-09-10 2019-12-20 中国科学院上海技术物理研究所 一种基于激光指示的火炮瞄准镜校准装置
ES2961614T3 (es) * 2019-12-17 2024-03-12 John Cockerill Defense SA Sistema inteligente para el control de funciones en una torreta de un vehículo de combate
WO2021158159A1 (en) * 2020-02-03 2021-08-12 BAE Systems Hägglunds Aktiebolag Embedded target tracking training
RU2725677C2 (ru) * 2020-02-27 2020-07-03 Алексей Владимирович Зубарь Способ текущей цифровой выверки прицелов с компенсацией положения прицельной марки на величину изгиба канала ствола
CN113310352B (zh) * 2021-06-17 2022-04-15 中国人民解放军68302部队参谋部 一种坦克炮瞄准射击方法及装置
CN113485460A (zh) * 2021-06-25 2021-10-08 航天科工仿真技术有限责任公司 一种发射筒的校准方法、装置及飞行设备
DE102022122842A1 (de) 2022-09-08 2024-03-14 Rheinmetall Electronics Gmbh Vorrichtung zum Bestimmen einer Winkelabweichung, Fahrzeug und Verfahren zur Bestimmung einer Winkelabweichung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246805C2 (de) * 1982-12-17 1986-08-28 Krauss-Maffei AG, 8000 München Justiervorrichtung für die Feuerleitanlage eines Kampffahrzeugs
DE3942922C2 (he) * 1989-12-23 1993-07-08 Volkmar Dipl.-Ing. Fiedler (Fh), 3101 Beedenbostel, De

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US1994177A (en) * 1932-04-28 1935-03-12 James B Nolan Bore sighting apparatus for large caliber guns
FR2504668A1 (fr) * 1981-04-24 1982-10-29 France Etat Procede et dispositif d'asservissement d'une arme a une lunette de visee
FR2505477B1 (fr) * 1981-05-08 1985-06-14 France Etat Procede et dispositif d'harmonisation des axes d'une arme et d'un viseur
CA1223652A (en) * 1983-04-29 1987-06-30 Raymond Carbonneau Gun muzzle reference system
CN2175397Y (zh) * 1993-11-25 1994-08-24 湖北长江光电仪器厂 快速校准瞄准镜
WO2002027259A2 (en) * 2000-09-29 2002-04-04 C.I. System Ltd. Method and apparatus for the precise alignment of a weapon relative to a sight
SE524435C2 (sv) * 2002-12-17 2004-08-10 Saab Ab Sätt och anordning för ensning av sikte och eldrör
SE524913C2 (sv) * 2003-08-28 2004-10-19 Saab Ab Sätt och anordning för ensning av eldrör
US7124676B1 (en) * 2005-06-07 2006-10-24 Princeton Scientific Instruments Muzzle reference system
US8091268B2 (en) * 2006-02-09 2012-01-10 Leupold & Stevens, Inc. Multi-color reticle for ballistic aiming
CN201983701U (zh) * 2011-01-25 2011-09-21 朱光宇 射击武器瞄准装置
US8807430B2 (en) * 2012-03-05 2014-08-19 James Allen Millett Dscope aiming device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246805C2 (de) * 1982-12-17 1986-08-28 Krauss-Maffei AG, 8000 München Justiervorrichtung für die Feuerleitanlage eines Kampffahrzeugs
DE3942922C2 (he) * 1989-12-23 1993-07-08 Volkmar Dipl.-Ing. Fiedler (Fh), 3101 Beedenbostel, De

Also Published As

Publication number Publication date
KR102323309B1 (ko) 2021-11-08
CA3020892A1 (fr) 2017-12-07
IL263330B (he) 2020-09-30
KR20190022508A (ko) 2019-03-06
US11435164B2 (en) 2022-09-06
WO2017207487A1 (fr) 2017-12-07
US20200370869A1 (en) 2020-11-26
IL263330A (he) 2018-12-31
EP3465069A1 (fr) 2019-04-10
SG11201809069SA (en) 2018-11-29
CN109154486A (zh) 2019-01-04
ES2925194T3 (es) 2022-10-14
CN109154486B (zh) 2022-03-18
BE1023708B1 (fr) 2017-06-22
PL3465069T3 (pl) 2022-08-22

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