EP1923657B1 - Une base d'arme éloignée compacte, intégralement stabilisée et équipée de quatre axes, avec ligne de visée indépendante - Google Patents

Une base d'arme éloignée compacte, intégralement stabilisée et équipée de quatre axes, avec ligne de visée indépendante Download PDF

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Publication number
EP1923657B1
EP1923657B1 EP06124200.4A EP06124200A EP1923657B1 EP 1923657 B1 EP1923657 B1 EP 1923657B1 EP 06124200 A EP06124200 A EP 06124200A EP 1923657 B1 EP1923657 B1 EP 1923657B1
Authority
EP
European Patent Office
Prior art keywords
weapon
sight
remote
axis
sight unit
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.)
Revoked
Application number
EP06124200.4A
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German (de)
English (en)
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EP1923657A1 (fr
Inventor
Robert Svensson
Martin Stalfors
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
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Application filed by Saab AB filed Critical Saab AB
Priority to EP06124200.4A priority Critical patent/EP1923657B1/fr
Priority to US11/984,397 priority patent/US20080148931A1/en
Publication of EP1923657A1 publication Critical patent/EP1923657A1/fr
Application granted granted Critical
Publication of EP1923657B1 publication Critical patent/EP1923657B1/fr
Revoked 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
    • F41G3/14—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
    • F41G3/22—Aiming or laying means for vehicle-borne armament, e.g. on aircraft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G5/00—Elevating or traversing control systems for guns
    • F41G5/14—Elevating or traversing control systems for guns for vehicle-borne guns

Definitions

  • the present invention relates to a remote weapon station according to the precharacterising part of claim 1.
  • the present invention relates, but not limited, to industries making remotely controlled weapon stations, machine-guns, automatic grenade launchers, missile firing equipment etc.
  • a three axes remote weapon station comprises a gun being turnable about a first transverse axis and a second elevation axis and a sight unit rotatable about a third elevation axis, wherein the third axis is primary used when firing grenade launcher type weapons.
  • the four axes weapon stations is provided for that the line of sight can be controlled independently of the bore axis of the weapon, wherein the bore axis weapon is stabilised in two axes.
  • Prior art systems having four axes arrangement wherein solely the weapon's bore axis is two axes stabilized involve that the field of vision must be selected such that the target remain within the field of vision when the vehicle is moving (roll/pitch/heading). Also this means that it is difficult to measure the distance to the target when the vehicle moves, especially when angles for super elevation and lead angles are added to compensate for relative motion between the target and the weapon station. Furthermore, prior art systems wherein solely the sight unit's line of sight is two axes stabilized involve that it is difficult to hit the target with fired ammunition.
  • US 5273236 discloses an apparatus provided for designating a plurality of objects within a field of view and thereafter simultaneously tracking each of the objects.
  • a further document, US 4576346 describes a seeker head for a target seeking missile, which comprises a seeker adapted to be directed to a target.
  • EP 111 192 discloses a weapon control system including target search and tracking means wherein the target search means are mounted on a column connected with the gun turret, and wherein the target tracking means are mounted on the gun and are able to slew about two mutually perpendicular axes.
  • the object of the present invention is to overcome the drawbacks of known techniques.
  • the remote weapon station is characterised by the features of claim's 1 characterising part.
  • a not bulky remote weapon station is achieved at the same time as the operator of the remote weapon station is able to perform targeting and surveillance without changing the remote weapon station's silhouette and thus reducing the risk of being detected by visual means.
  • the concentration of masses will also be symmetrically arranged which will make the remote weapon station possible to stabilise without adding extra weight in the form of undesired counter weights or larger drives. Thereby increase the usage of the weapon station when the platform on which the weapon station is mounted is moving. Thereby is also achieved a possibility to utilise the sensor without pointing a gun directly at the object of interest.
  • a positive effect is that a weapon station can be provided with a high precision stabilised system having a sighting function with an unitary installation of a sight unit matching the performance of the weapon and at the same time providing a sufficient performance for e.g. missile guidance.
  • the sight unit in an effective manner can follow a target by controlling the weapon via a control unit for aiming-off, at the same time as compensation means provides for compensation of eventual uneven motion of the remote weapon station, for example being mounted at a gun boat.
  • the control unit can control the sight unit independently of the gun aiming by means of the arrangement of the remote weapon station according to the present invention.
  • a compact remote weapon station is thus achieved having a sight unit with a totally independent line of sight relatively the pointing of the gun having the sight unit correctly balanced relatively the weapon and providing an exact line of sight.
  • a remote weapon station having a sight unit, which weapon station can be used utilizing the sight unit without the need of other kinds of compensation for lead angles and/or super elevation.
  • the objects of the invention is to provide a compact remote weapon station, wherein the assembly permits that the angle between the bore axis of the weapon and the line of sight of the sight in a controllable manner can be made independently of each other.
  • the weapon's bore axis being stabilized in two axes and the sight unit's line of sight being stabilized in two axes.
  • the target can be placed in the centre of a image generating display and the distance to the target continuously can be measured by a laser range finder etc, wherein the weapon's bore axis can be directed in such a way that the fired ammunition hits the target with precision. Also is achieved that the bore axis of the weapon and the line of sight of the sight unit can be oriented relative each other in such a way that the sight unit can be used without the need of directing the weapon towards the target.
  • the sight unit's line of sight can be stabilized and directed with a higher accuracy than being provided by systems only stabilising the weapon's bore axis.
  • the weapon support is rotatable about the first transverse axis independently of the rotatable motion of the sight unit about the third transverse axis such that the weapon can be directed essentially in another direction relatively the search direction of the sight unit.
  • the weapon can be rotated to the opposite direction relatively to the sight unit's target tracking(or search) direction.
  • This is also a beneficial feature for shortening the time when for example a supporting leg of the weapon carriage covers the line of sight, by controlling the weapon support's and sight unit's relative rotation.
  • the weapon support also is arranged to be controlled to rotate about the first transverse axis dependent upon the rotatable motion of the sight unit about the third transverse axis.
  • the first axis coincides with the third axis.
  • a remote weapon station being capable to utilize a compact motor driving system using the same axis for the transverse rotations.
  • the sight unit comprises a first essentially spherical, hollow body which interacts with a second essentially rotationally symmetrical body, both bodies being rotatable in relation to one another about the transverse axis, the spherical body accommodating at least one electro-optical sensor, being rotatable about the fourth elevation axis.
  • the sight unit can be independently stabilised, thereby making the remote weapon station optimized for high precision sensor systems, e.g. laser illumination at long ranges.
  • the use of a sensor sight system with a spherical form arranged in the remote weapon station provides independent 360° traverse operation with an optimal configuration of the remote weapon station with regard to overall volume, interior sensor volume utilisation, ballistic protection, signature management, and weapon dumping/elevation angles.
  • the weapon support comprises a tiltable leg arrangement supporting the weapon attachment device, the leg arrangement being tiltable over the first essentially spherical, hollow body.
  • the remote weapon station can be made lower for transportation purposes by tilting the weapon attachment device over the sight unit.
  • the tilting action performing an imaginary circular arc essentially with the same radius as the radius of the first essentially spherical, hollow body.
  • the sight unit comprises a first essentially cylindrical, hollow body accommodating at least one electro-optical sensor.
  • the hollow body encloses all interior movable parts, such as electro-optical sensors, of the sight unit for hiding said parts.
  • the body is preferably armour cased and transparent and/or partly transparent.
  • the weapon support being comprised in a motorized gun control system.
  • the remote weapon station is applicable to an available platform, such as a truck, an armoured car, gun boat, tank, helicopter etc.
  • the sight unit is arranged for controlling at least one weapon disposed at a distance from the remote weapon station.
  • a remote weapon station 1 is schematically illustrated.
  • the remote weapon station 1 is mountable onto a gun boat (not shown) or the like.
  • the remote weapon station 1 comprises a weapon support 3 adapted for rotatable motion about a frst transverse axis X1.
  • the weapon support 3 supports a weapon attachment device 5 being rotatable about a second elevation axis X2.
  • the second elevation axis X2 comprises an U-shaped part 7 for accommodation of a gun 9.
  • the gun 9 is mounted onto the weapon attachment device 5, such as a bayonet fitting (not shown) connected to the second elevation axis X2, wherein the gun 9 easily can be disconnected from the weapon attachment device 5.
  • the weapon support 3 supports two legs 11 extending from a platform 13 of the weapon support 3, which platform 13 being rotatable about the axis X1. Between the legs 11 and at their upper ends 15 is the U-shaped part 7 mounted. One of the legs 11 accommodates an ammunition belt guide (not shown).
  • the remote weapon station 1 comprises a sight unit 17 for observation of the surroundings and for measuring in a detected target, tracking, classifying the type of target, identifying the target etc.
  • the sight unit 17 is rotatable about a third transverse axis X3 and about a fourth elevation axis X4.
  • the sight unit 17 has at least one electro-optical sensor 19 with associated apertures 21 arranged in the sight unit's 17 spherical hollow body 23.
  • the sight unit 17 is mounted between the weapon support 3 (platform or fundament) and the weapon (gun) attachment device 5, whereby is achieved a compact remote weapon station 1 having a sight unit 17 with a totally independent line of sight relatively the bore axis of the gun 9.
  • a control unit 25 is arranged remote from the weapon station 1 and is adapted to control a weapon driving means 27 for rotating the gun 9 about the first transverse axis X1 and the second elevation axis X2 and also to control a sight unit driving means 29 for rotation about the third transverse axis X3 and the fourth elevation axis X4.
  • FIGS. 2a, 2b, 2c are shown in a plane view the remote weapon station 1 performing a sight unit rotation towards a target/object 31 while pointing the gun 9 in a somewhat opposite direction.
  • both the gun 9 and the sight unit 17 are directed in the same direction.
  • the sight unit 17 has started it's rotation r for localising the target 31 without pointing the gun 9 at the target 31. In some cases this performance can be beneficial since pointing a gun at an object may result in a non-desirable reaction.
  • FIG. 2b is shown how the sight line L will be covered by one of the legs 11 of the weapon support 3.
  • This problem is partly solved by using e.g. two sensors or two in pair arranged sensors 19, such as one TV- and one IR-sensor or two in pair arranged TV- and IR-sensors.
  • the first sensor or pair of sensors observes the surroundings, the second sensor or pair of sensors instantaneously will lose contact with the target 31 since the sight line L is covered by the leg 11.
  • the second sensor or pair of sensors pick up the line of sight to the target L.
  • the control unit 25 controls the weapon support 3 to rotate in an opposite direction marked with arrow r2, see FIG. 2c (an overlapping function).
  • the legs 11 can be arranged as a system of framework.
  • the apertures and sensors can be parked occasionally behind one of the legs 11.
  • the sight unit 17 is rotatable about the third transverse axis X3 and about, perpendicular to the third axis X3, the fourth elevation axis X4, independently of the position or rotation of the weapon support 3 about the first transverse axis X1 and the second elevation axis X2.
  • a spherical hollow body 23 embodying the sight sensors 19 an independent 360° traverse operation of the sight unit 17 is possible without moving the gun 9, wherein the silhouette of the remote weapon station 1 not being changed, thus minimizing the risk of being detected by the object/target 31 by visual means.
  • FIGS. 1 and 2 show a sight unit 17 comprising an spherical hollow body 23 embodying the sensors 19, as an alternative the sight unit 17 may comprise a first essentially cylindrical or cubical, hollow body 23 accommodating at least one electro-optical sensor 19.
  • FIGS. 3a, 3b, 3c Such an embodiment is shown in FIGS. 3a, 3b, 3c .
  • FIG. 3c shows the sight unit 17 directed to the opposite direction relatively the gun 9 in a horizontal action.
  • FIGS. 3a, 3b, 3c The embodiment of FIGS. 3a, 3b, 3c is arranged such that the first transverse axis X1 coincides with the third transverse axis X3 of the sight unit 17, whereby is provided a remote weapon station 1 being capable to utilize a compact motor driving system using the same axis for the transverse rotations as being described below with reference to FIG. 6 .
  • a cylindrical hollow body 33 encloses all interior movable parts, such as electro-optical sensors, of the sight unit for protecting said parts.
  • the body is transparent and armour cased. In such a way, on one hand the interior equipment is protected from splinters, small arms fire or ricochets etc., and on the other hand hidden from being detected by the object/target.
  • the sight unit 17 comprises an essentially spherical body 23 adjacent to one end of a rotationally symmetrical body 35, preferably of circular cylindrical shape.
  • the spherical body 23 comprises a circular central section 37 surrounded by two peripheral half sections 39 on each side (only one section 39 is illustrated with broken line).
  • Each peripheral half section is provided with two apertures 21.
  • the sections each only have one aperture.
  • the spherical hollow body 23 is rotatable in relation to the rotationally symmetrical body 35 about the third transverse axis X3.
  • the two peripheral half sections 39 are rigidly mechanically interconnected and arranged rotatable so as to be capable of being rotated about the fourth elevation axis X4.
  • the elevation can be limited to a range wherein the apertures 21 are in one end position oriented at an angle downwards relative to the horizontal plane and, in the other end position, oriented at an angle upwards relative to the horizontal plane.
  • the electro-optical sensors 19 can be selected from a variety of sensors, e.g. TV, IRV, laser rangefinder and laser illuminator.
  • the use of the sight unit 17 with a spherical form arranged in the remote weapon station 1 provides independent 360° traverse operation with an optimal configuration of the remote weapon station 1 with regard to overall volume, interior sensor volume utilisation, ballistic protection, signature management, and weapon dumping/elevation angles.
  • FIG. 5a and 5b are shown an embodiment of the remote weapon station 1, wherein the weapon support 3 comprises a tiltable leg arrangement 41 supporting the weapon attachment device 5.
  • the leg arrangement 41 comprises two legs 11 being tiltable about a tilting point p over the essentially spherical, hollow body 23 being also shown in FIG. 4 .
  • the tilting action of the weapon attachment device 5 over the sight unit 17 performs an imaginary circular arc c essentially with the same radius as the radius of the circumference of the essentially spherical, hollow body 23.
  • the remote weapon station 1 can be made lower in a transportation mode without the need of making the volume of the sight equipment smaller.
  • FIG. 6 is schematically illustrated a compact motor driving system 43 using the same axis X1, X3 for the transverse rotations of both the sensor unit 17 and the weapon support 3.
  • the first axis X1 coincides with the third axis X3.
  • a first rotor 45 is arranged rotatable about the common transverse axis X1 and X3 and is connected to the legs 11 of the weapon support 3 and via a first bearing 47 connected to the weapon carrier 49, such as a gun boat.
  • a first stator 51 actuates the first rotor 45 for transverse rotation of the gun 9.
  • a further second bearing 53 is arranged between the first rotor 45 and a second rotor 55 carrying the circular central section 37, within which the electro-optical sensors 19 are rotatable arranged for elevation rotation about the fourth elevation axis X4.
  • a second stator 57 actuates the second rotor 55 for the transverse rotation of the circular central section 37 and the peripheral sections (not shown) of the sight unit 17.
  • FIG. 7 is shown schematically the aiming of the remote weapon station 1 at a moving target 31.
  • the gun's 9 pointing direction and the sight line L of the sight unit 17 is broken for sake of clarity and the target 31 is drawn smaller than the remote weapon station 1 for the sake of illustration.
  • An aiming-off angle ⁇ is required as the target 31 is moving.
  • the compact remote weapon station's 1 sight unit 17 detecting the target 31 is rotated independently of the gun's 9 motion.
  • the control unit 25 is estimated the required aiming-off angle ⁇ , dependent upon the velocity of the target 31 and eventually the velocity of the carrier carrying the remote weapon station 1. Also parameters as wind direction and speed etc. are considered.
  • An uniaxial rate gyro is stabilizing the gun 9 via an elevation drive unit 27 and a transverse drive unit arranged at the second elevation axis X2 and the transverse axis, and the electro-optical sensors 19 are stabilized via a sensor unit elevation drive system (not shown) of an elevation drive system and transverse drive system arranged within the circular central section 37 of the sight unit 17.
  • the remote weapon station 1 is according to one embodiment of the invention provided with a weapon support 3 being comprised in a motorized gun control system. Thereby is achieved that the remote weapon station 1 is applicable to an available carrier, such as a truck, car, gun boat, tank, helicopter etc.
  • the sight unit 17 of the remote weapon station 1 can control at least one separate weapon 60 placed at a distance from the remote weapon station 1.Control is achieved by means of being directly connected to the weapon, illuminating the target for the weapon or providing in-the-air guidance to the weapon or a combination of any of these means.
  • the invention is not limited to a specific embodiment herein, but may also consist of several combinations of the presented embodiments.
  • only one peripheral half section can provide an aperture and none in the other section.
  • the elevation drive system and transverse drive system may be arranged in one of the supports of the sight unit.
  • the sight unit's hollow body can have a central section being rotatable and two outer section acting as supports (fork-shaped assembly) or the section being supported by only one peripheral support.
  • the sight unit may be placed between the weapon support and the weapon attachment device by mounting the sight unit "hanging" under the weapon attachment device or adjacent the same.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (10)

  1. Base d'arme éloignée comprenant un support (3) d'arme adapté en vue d'un mouvement rotatif autour d'un premier axe transversal (X1), le support (3) d'arme incluant une plateforme (13) supportant un dispositif de fixation (5) d'arme supportant une arme (9), ledit dispositif de fixation d'arme pouvant tourner autour d'un deuxième axe d'élévation (X2) perpendiculaire au premier axe transversal (X1), la base d'arme éloignée (1) comprenant en outre une unité de visée (17) pouvant tourner autour d'un troisième axe transversal (X3) et autour d'un quatrième axe d'élévation (X4), perpendiculaire au troisième axe transversal, caractérisée en ce que ladite unité de visée (17) peut tourner autour dudit troisième axe transversal (X3) et dudit quatrième axe d'élévation (X4), indépendamment de la position ou de la rotation du support (3) d'arme autour du premier axe transversal (X1) et du dispositif de fixation (5) d'arme autour de la deuxième axe d'élévation (X2), et en ce que l'unité de visée (17) est montée sur la plateforme et agencée entre la plateforme (13) du support (3) d'arme et l'arme (9) montée sur le dispositif de fixation (5) d'arme et en ce que l'axe de trou de l'arme est stabilisé sur deux axes et la ligne de visée de l'unité de visée est stabilisée sur deux axes.
  2. Base d'arme éloignée selon la revendication 1, dans laquelle le support (3) d'arme peut tourner autour du premier axe transversal (X1) indépendamment du mouvement rotatif de l'unité de visée (17) autour du troisième axe transversal (X3) de telle sorte que l'arme (9) peut être dirigée essentiellement dans une autre direction par rapport à la ligne de visée de l'unité de visée (17).
  3. Base d'arme éloignée selon l'une quelconque des revendications 1 ou 2, dans laquelle le support (3) d'arme est également conçu pour être commandé afin de tourner autour du premier axe transversal (X1) en fonction du mouvement de rotation de l'unité de visée (17) autour du troisième axe transversal (X3).
  4. Base d'arme éloignée selon l'une quelconque des revendications précédentes, dans le premier axe transversal (X1) coïncide avec le troisième axe (X3).
  5. Base d'arme éloignée selon l'une quelconque des revendications précédentes, dans laquelle l'unité de visée (17) comprend un premier corps creux essentiellement sphérique (23) qui interagit avec un deuxième corps essentiellement symétrique en rotation (35), les deux corps pouvant tourner l'un par rapport à l'autre par rapport au troisième axe transversal (X3), le corps sphérique (23) accueillant au moins un capteur électro-optique (19), le capteur (19) pouvant tourner autour du quatrième axe d'élévation (X4).
  6. Base d'arme éloignée selon la revendication 5, dans laquelle le support (3) d'arme comprend un agencement de pattes inclinables (41) supportant le dispositif de fixation (5) d'arme, l'agencement de pattes (41) tant inclinable sur le premier corps creux essentiellement sphérique (23).
  7. Base d'arme éloignée selon l'une quelconque des revendications 1-4, dans laquelle l'unité de visée (17) comprend un premier corps creux essentiellement cylindrique (33) accueillant au moins un capteur électro-optique (19).
  8. Base d'arme éloignée selon l'une quelconque des revendications précédentes, dans laquelle un corps creux essentiellement transparent (23, 33) renferme toutes les pièces intérieures mobiles, telles que les capteurs électro-optiques, de l'unité de visée (17) pour protéger et cacher lesdites pièces.
  9. Base d'arme éloignée selon l'une quelconque des revendications précédentes, dans laquelle le support (3) d'arme est compris dans un système de commande de pistolet.
  10. Base d'arme éloignée selon l'une quelconque des revendications précédentes, dans laquelle l'unité de visée (17) est adaptée pour commander ou guider au moins une arme (60) disposée à une distance de la base d'arme éloignée (1).
EP06124200.4A 2006-11-16 2006-11-16 Une base d'arme éloignée compacte, intégralement stabilisée et équipée de quatre axes, avec ligne de visée indépendante Revoked EP1923657B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06124200.4A EP1923657B1 (fr) 2006-11-16 2006-11-16 Une base d'arme éloignée compacte, intégralement stabilisée et équipée de quatre axes, avec ligne de visée indépendante
US11/984,397 US20080148931A1 (en) 2006-11-16 2007-11-16 Compact, fully stablised, four axes, remote weapon station with independent line of sight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06124200.4A EP1923657B1 (fr) 2006-11-16 2006-11-16 Une base d'arme éloignée compacte, intégralement stabilisée et équipée de quatre axes, avec ligne de visée indépendante

Publications (2)

Publication Number Publication Date
EP1923657A1 EP1923657A1 (fr) 2008-05-21
EP1923657B1 true EP1923657B1 (fr) 2017-05-03

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EP06124200.4A Revoked EP1923657B1 (fr) 2006-11-16 2006-11-16 Une base d'arme éloignée compacte, intégralement stabilisée et équipée de quatre axes, avec ligne de visée indépendante

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US (1) US20080148931A1 (fr)
EP (1) EP1923657B1 (fr)

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