EP2839235A1 - Verfahren zur bestimmung von korrekturen für artilleriefeuer - Google Patents

Verfahren zur bestimmung von korrekturen für artilleriefeuer

Info

Publication number
EP2839235A1
EP2839235A1 EP13715705.3A EP13715705A EP2839235A1 EP 2839235 A1 EP2839235 A1 EP 2839235A1 EP 13715705 A EP13715705 A EP 13715705A EP 2839235 A1 EP2839235 A1 EP 2839235A1
Authority
EP
European Patent Office
Prior art keywords
reticle
target
impact
display screen
orientation
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
EP13715705.3A
Other languages
English (en)
French (fr)
Other versions
EP2839235B1 (de
Inventor
Patrick Seugnet
Stéphane GODIO
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
Thales SA
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 Thales SA filed Critical Thales SA
Priority to PL13715705T priority Critical patent/PL2839235T3/pl
Publication of EP2839235A1 publication Critical patent/EP2839235A1/de
Application granted granted Critical
Publication of EP2839235B1 publication Critical patent/EP2839235B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/06—Aiming or laying means with rangefinder
    • F41G3/065—Structural association of sighting-devices with laser telemeters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/02—Aiming or laying means using an independent line of sight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/06—Aiming or laying means with rangefinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/14—Indirect aiming means
    • F41G3/142—Indirect aiming means based on observation of a first shoot; using a simulated shoot

Definitions

  • the field of the invention is that of artillery fire.
  • This observation system described in relation with FIG. 4 conventionally comprises an observation channel which comprises an image sensor 2 and a laser telemetry pathway, said laser path, which comprises a rangefinder 4; it also comprises a display screen 1 common to both channels on which appears the image 10 from the image sensor and on which is positioned a telemetry reticle R1 materializing the line of sight of the laser rangefinder, as can be seen see Figure 1.
  • This reticle is usually shaped like a cross.
  • the laser beam of the rangefinder is emitted in a very narrow sector typically of about 1 mrad, which imposes a very precise laser pointing.
  • a harmonization that is to say an alignment of the axes between the laser path and the observation path is performed at the factory; As a result, the reticle R1 is located substantially in the center of the screen 1.
  • the operator orients the binoculars so as to position the laser reticle R1 on the image of the target and then the telemetry is performed by means of a user interface 7, for example by action on a push button.
  • the observation system is furthermore equipped with means for measuring the orientation of the line of sight (of the observation channel or of the telemetry channel since they have the same axis), such that a magnetic compass, or a goniometer or a gyrocompass ..., or any other means, and positioning means 6 such as for example a GPS bi-antenna system.
  • This observation system is for example mounted on a tripod and therefore has a fixed geographical position, and is able to be oriented. As indicated, the observer directs the observation system so as to make the reticle R1 coincide with the image 10 of the target on the display screen 1 as illustrated in FIG. 1.
  • the coordinates of the target are extracted from these three measurements and transmitted to the pieces of artillery, by voice for example.
  • the second observer When the first impact is not on the target, the second observer has the second mission to provide the operators with artillery pieces, the parameters necessary to determine the corrections of shots to be made to make a second strike on the target. this time.
  • the parameters provided by the advanced observer are 3 as shown in Figure 2:
  • the distance D ' is obtained by laser telemetry with a sufficient accuracy of the order of ⁇ 5m.
  • the goniometer The goniometer.
  • the magnetic compass is a device sensitive to the Earth's magnetic field and makes it possible to determine the magnetic north of a place; it is then easy to deduce the geographic north of this place, by adding the magnetic declination.
  • Using a magnetic compass you can measure by pointing at a target the observation field towards this target. By pointing to the impact and making a subtraction, one is able to determine the shift in bearing between the target and the impact.
  • the advantage of the device lies in its compactness and lightness. It is easily integrated into more complex systems such as multifunctional binoculars for example. Its disadvantage is related to the sensitivity of this type of sensor which is extremely sensitive to disturbances and can not guarantee in the best case a measurement less than 10 mrad. But this accuracy of 10 mrad is very insufficient since the order of magnitude of the corrections of shots that one seeks to provide is 1 millradian.
  • the goniometer is a protractor. It makes it possible to measure a relative angle with great precision, less than one mrad. By successively pointing the line of sight of a binocular on the target and then on the point of impact, it makes it possible to measure the shift in bearing with the required precision.
  • the disadvantage of the goniometer is that it is heavy, cumbersome which is penalizing for tactical equipment and adds a significant cost to the system.
  • These correction parameters can also be calculated by using an observation system such as a binocular or a telescope, whose display screen is provided with a micrometric R1 reticle, that is to say completed by small markers. , the distance between two marks defining a field of view, as represented in FIG.
  • the observer himself evaluates the shift in the field and in the field as a function of the shift observed on his display screen 1 between the micrometer reticle R1 positioned on the image 10 of the target and the image 11 of the image. impact on his screen; but this evaluation by the observer himself does not make it possible to reach the desired accuracy of the order of 1 billion. Then by telemetry, it measures the distance by having previously oriented its observation system to the impact that is to say by positioning the reticle on the image of the impact.
  • the subject of the invention is a method for determining gunfire corrections on a fixed target by means of an optronic observation system of fixed geographical position, able to be oriented and equipped with a measuring device the orientation of its line of sight, a laser range finder, system positioning means, a display screen provided with a fixed reticle and harmonized with the axis of the range finder, display means and moving another reticle on the screen, which comprises the following step:
  • the observation system so as to display the fixed reticle on the image of the target on the display screen and calculate geographical coordinates of the target according to the distance provided by the rangefinder, the orientation provided by the device for measuring the orientation and the position of the optronic system provided by the positioning means.
  • a shot having taken place and the impact of this shot does not coincide with the target, it comprises the following steps: - the orientation of the system being fixed:
  • the display of the second and third reticle are possibly simultaneous.
  • the telemetry step can be repeated, for example when no echo is obtained by the range finder.
  • the field of view of the display screen may vary, it comprises following the step of extraction of coordinates, a step of widening the field of view of the display screen.
  • the subject of the invention is also an optronic observation system capable of being oriented and equipped with a device for measuring the orientation of its line of sight, a laser range finder, means for positioning the system, and a display screen provided with a fixed reticle and harmonized with the axis of the range finder, a user interface and a processing unit, characterized in that it comprises means for displaying and moving two other reticles on the screen, and in that the processing unit comprises means for implementing the method as described.
  • FIG. 1 already described schematically represents an example of a target image on a display screen
  • FIG. 2 already described illustrates the firing corrections to be made
  • FIG. 3 illustrates the different steps of displaying the reticles R2 and R3 according to the invention
  • FIG. 4 schematically represents an example of an observation system.
  • a second reticle R2 places this reticle R2 on the image 1 1 of the point of impact on the screen without change the orientation of the binocular, as shown in Figure 3a.
  • These means of moving a reticle are for example a joystick, or push buttons or a device for analyzing the retina of the observer.
  • the microvisualizer is of the OLED or LCD type, with a bearing angle associated with each predetermined pixel; it is typically from about 0.1 to 5%.
  • the required accuracy of the order of 1 mrd is thus largely achieved by measuring ⁇ in number of pixels. It is the same for the shift in the site obtained by measuring Ay, but the main contribution is that of the offset in the field.
  • the horizontal field of a screen is typically about 3 °, about 50 mrd, which corresponds to a field of view covering about 150 m, for an observer located at 3 km.
  • the observer may possibly expand this field of view before the adjustment shot, the angle of bearing associated with each pixel being of course increased accordingly.
  • a third reticle R3 is displayed on the screen symmetrically with the reticle R2 with respect to R1 (more precisely with respect to the center of R1); this is shown in Figure 3b.
  • the observer modifies the orientation of the observation system so as to position the reticle R3 on the image of the target 10, which by construction brings the reticle R1 and therefore the axis of view of the rangefinder on the image of the point of impact 1 1.
  • the point of impact becomes the physical reference common to the observer and the artillery pieces instead of the geographic north.
  • It then activates the range finder to measure the distance D 'between the observation system and the point of impact. This telemetry step is possibly repeated as long as no echo of the point of impact is detected by the range finder.
  • the observation system also has all the data (position, shift in orientation, distances D and D ') to determine the difference between the target and the point of impact of the adjustment shot, with the accuracy of a goniometer system but without the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measurement Of Optical Distance (AREA)
EP13715705.3A 2012-04-20 2013-04-15 Verfahren zur bestimmung von korrekturen für artilleriefeuer Active EP2839235B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13715705T PL2839235T3 (pl) 2012-04-20 2013-04-15 Metoda określania korekt strzałów artyleryjskich

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1201168A FR2989775B1 (fr) 2012-04-20 2012-04-20 Procede de determination des corrections de tir d'artillerie
PCT/EP2013/057786 WO2013156434A1 (fr) 2012-04-20 2013-04-15 Procede de determination des corrections de tir d'artillerie

Publications (2)

Publication Number Publication Date
EP2839235A1 true EP2839235A1 (de) 2015-02-25
EP2839235B1 EP2839235B1 (de) 2017-11-15

Family

ID=46754484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13715705.3A Active EP2839235B1 (de) 2012-04-20 2013-04-15 Verfahren zur bestimmung von korrekturen für artilleriefeuer

Country Status (7)

Country Link
US (1) US9250037B2 (de)
EP (1) EP2839235B1 (de)
ES (1) ES2656263T3 (de)
FR (1) FR2989775B1 (de)
IL (1) IL235106B (de)
PL (1) PL2839235T3 (de)
WO (1) WO2013156434A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101975530B (zh) * 2010-10-19 2013-06-12 李丹韵 电子瞄准器及调整和确定其分划的方法
US10054397B1 (en) * 2015-04-19 2018-08-21 Paul Reimer Self-correcting scope
DE102015120205A1 (de) * 2015-09-18 2017-03-23 Rheinmetall Defence Electronics Gmbh Fernbedienbare Waffenstation und Verfahren zum Betreiben einer fernbedienbaren Waffenstation
FR3052858B1 (fr) * 2016-06-21 2020-04-03 Thales Procede d'estimation d'une direction d'orientation absolue d'un systeme optronique
CN106767548B (zh) * 2017-03-08 2023-07-25 长春理工大学 空间三坐标法检测火炮身管射击状态下指向性装置及方法
CN110530205A (zh) * 2019-09-18 2019-12-03 中国科学院合肥物质科学研究院 一种多端同步实时校星装置和方法
DE102020127430A1 (de) 2020-10-19 2022-04-21 Krauss-Maffei Wegmann Gmbh & Co. Kg Ermittlung einer Feuerleitlösung einer artilleristischen Waffe
CN113959251B (zh) * 2021-10-20 2023-07-14 中国人民解放军63853部队 火炮上投影点与回转轴的水平距离测量方法
CN114383468A (zh) * 2022-02-18 2022-04-22 无锡市星迪仪器有限公司 坦克火炮校炮方法、处理装置及坦克火炮校炮系统
CN114877748A (zh) * 2022-04-26 2022-08-09 无锡市星迪仪器有限公司 一种基于数字图像的全天候近距离火炮零位校正装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2921149B1 (fr) * 2007-09-14 2009-11-06 Thales Sa Procede de telemetrie sur image stabilisee
WO2009064950A1 (en) * 2007-11-14 2009-05-22 Raytheon Company System and method for adjusting a direction of fire
US8408460B2 (en) * 2010-06-03 2013-04-02 United States Of America As Represented By The Secretary Of The Navy Auto adjusting ranging device
US20110315767A1 (en) * 2010-06-28 2011-12-29 Lowrance John L Automatically adjustable gun sight

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013156434A1 *

Also Published As

Publication number Publication date
US9250037B2 (en) 2016-02-02
ES2656263T3 (es) 2018-02-26
FR2989775A1 (fr) 2013-10-25
WO2013156434A1 (fr) 2013-10-24
PL2839235T3 (pl) 2018-02-28
IL235106B (en) 2018-02-28
EP2839235B1 (de) 2017-11-15
US20150075359A1 (en) 2015-03-19
FR2989775B1 (fr) 2014-06-06

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