EP0463566A1 - Procédé et dispositif pour évaluer les coups sur une cible - Google Patents

Procédé et dispositif pour évaluer les coups sur une cible Download PDF

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Publication number
EP0463566A1
EP0463566A1 EP91110143A EP91110143A EP0463566A1 EP 0463566 A1 EP0463566 A1 EP 0463566A1 EP 91110143 A EP91110143 A EP 91110143A EP 91110143 A EP91110143 A EP 91110143A EP 0463566 A1 EP0463566 A1 EP 0463566A1
Authority
EP
European Patent Office
Prior art keywords
hole
target
line
disc
shot
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
EP91110143A
Other languages
German (de)
English (en)
Other versions
EP0463566B1 (fr
EP0463566B2 (fr
Inventor
Sepp Albrecht
Rolf Giesel
Rudolf Wiedemann
Georg Huscher
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.)
DISAG INTERNATIONAL JUERGEN SPILLER
Original Assignee
DISAG INTERNATIONAL JUERGEN SPILLER
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.)
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Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6409286&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0463566(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DISAG INTERNATIONAL JUERGEN SPILLER filed Critical DISAG INTERNATIONAL JUERGEN SPILLER
Priority to DE9116709U priority Critical patent/DE9116709U1/de
Publication of EP0463566A1 publication Critical patent/EP0463566A1/fr
Publication of EP0463566B1 publication Critical patent/EP0463566B1/fr
Application granted granted Critical
Publication of EP0463566B2 publication Critical patent/EP0463566B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J5/00—Target indicating systems; Target-hit or score detecting systems
    • F41J5/02—Photo-electric hit-detector systems

Definitions

  • the invention relates to a method and an apparatus for evaluating hits from shooting targets, as is known from EP-PS 86 803.
  • the shooting target or the target target belt is transported through a first stationary optical system in which a photocell detects the light-dark transitions of the mirror of the target target and from this the target center coordinate in the target transport direction is calculated.
  • the hole position is also determined in the direction of transport of the pane, in such a way that the shot hole is located exactly above a light transmission line, which is made possible by comparing the light reception values of two light receiver lines arranged on the other side of the window.
  • the center coordinate of the shot hole in the target transport direction is determined.
  • the center coordinates of the target and the shot hole must be determined transversely to the target transport direction in the same way.
  • the second optical system is arranged on a transversely movable carriage.
  • the transport path of the target and that of the car, measured between the center of the hole and the center of the target, are then offset to form the shot result.
  • the result is displayed and can also be printed on the pane.
  • the known evaluation method and the device operating according to it have proven themselves in practice, but some disadvantages are unmistakable.
  • the optical scanning system works with an LED line and photo transistors.
  • these optical elements must have the same electrical, optical and mechanical values in the entire operating temperature range. Fringes at the edge of the shot hole can lead to evaluation errors.
  • the mechanical guidance of the second optical system on the transversely movable carriage is complex. There are comparatively long transport routes that go into the measuring process. The percentage slip affects the measurement result. For large shooting targets, such as those required for small-caliber shooting, sufficient accuracy can only be achieved with very great technical effort.
  • the object of the invention is to simplify the evaluation method and the evaluation device operating according to it, to accelerate the method of operation and, nevertheless, to increase the accuracy of the shooting target evaluation.
  • This object is achieved in a method for evaluating hits of shooting targets according to the preamble of claim 1 by means of its characterizing features.
  • a preferred embodiment forms the subject of claim 2.
  • the invention has significant advantages.
  • the method is suitable for the evaluation of all common disc bands and individual discs. Inaccuracies in the slice transport caused by slippage have no or significantly less effect on the measurement result.
  • the evaluation process is significantly accelerated since only the shot hole area needs to be recorded.
  • a single scanner e.g. in the form of a high-resolution scanner significantly reduces manufacturing costs.
  • the center of the shot hole is no longer related to the center of the pane but to the closest and preferably the inner ring of the pane, as is also done manually with the usual "shot hole tester". Thanks to the invention, large-area shooting targets can also be evaluated.
  • the shot holes do not have to be sharply contoured, but can be frayed to a certain extent and so-called double shots can also be evaluated, that is to say two overlapping shot holes.
  • roller scanner represents a particularly advantageous hardware implementation of the method according to the invention.
  • Such scanners are commercially available.
  • a scanner version with normal resolution, for example with 200 DPI (dots per inch), is sufficient for the invention, which means that the distance between the scanning points is approximately 0.12 mm.
  • the width of the scan line is the same size. It is within the scope of the invention to first detect the edge points of the hole and then the points of the adjacent arc piece of the disk.
  • the subjects of claims 4 and 5 form a more advantageous alternative since they increase the evaluation speed and the accuracy.
  • a half line feed of approximately 0.06 mm for example, two opposite edge points of the hole are detected due to the transmitted light hitting the scanner.
  • the transmitted light is switched off or covered, so that two points can now be detected by means of reflected incident light from the disk ring adjacent to the shot hole.
  • image points of the edge of the hole and the disk ring are determined alternately.
  • One or two comparatively short arc pieces of the corresponding disk ring are sufficient for the mathematical determination of the disk center.
  • a circumferentially closed polygon is not required for the hole edge either, rather the center of the hole can already be calculated from a half polygon, for example. Therefore, double shots can also be evaluated with the method according to the invention. Any fringes affect do not affect the measurement result, since their signals fall out of the hole contour so strongly that they can be electronically eliminated.
  • the transmitted light for the perforated edge detection does not necessarily have to be switched off periodically, even if this is readily possible so as not to interfere with the ring detection, rather a detection system can be used which reflects the transmitted light from the reflected light Incident light differs and only takes the transmitted light into account when determining the hole edge and only the reflected incident light is taken into account for ring detection.
  • the light sources can be in different frequency bands, as it is also possible to design the light transmission line for the transmitted light with a significantly higher light intensity than the incident light.
  • the mandrel is held in a neutral position and, after the transversely movable carriage has moved into the rough position determined by the optical system, is lowered into the hole, where it is centered automatically with respect to the circumference of the hole, and undergoes a deflection, the components of which in the disk transport direction and transversely thereto recorded and calculated with the coordinates of the rough hole determination.
  • the detection of the mandrel deflection can easily be determined inductively or optically.
  • a particularly precise and advantageous solution consists in that the centering mandrel is suspended in a gimbal and axially movable manner in a pendulum ball bearing in its central region and carries a light-emitting diode at its end opposite the mandrel tip, the light of which falls on a four-quadrant photodiode system.
  • the sum of all four individual levels remains constant.
  • the four quadrants receive the same levels.
  • the ultrasound scanning system that can be used instead of in addition to the mechanical secondary scanning system uses an ultrasound barrier with a transmitter on one side of the pane and a receiver on the other side.
  • the ultrasonic barrier is moved into the shot hole position roughly determined by the optical system in the transverse direction for the pane transport. Then the pane transport and the carriage transport carry out correction paths until the formwork performance measured by the receiver reaches its maximum. The two correction paths are in turn calculated using the coordinates of the roughly determined hole position.
  • the mechanical solution of the secondary scanning system has the advantage that double shots can be evaluated very precisely, while the secondary scanning system working on ultrasound is used advantageously when the shot holes are very frayed, because it has surprisingly been shown that such fringes hardly have one when subjected to ultrasound Have an effect on the measurement result.
  • the invention further relates to a device for the evaluation of hits from shooting targets with a housing in which a motor-driven transport device for the shooting target or the -disc belt is arranged, with a light transmission line arranged on one side of the transport path for the target, aligned transversely to the direction of transport, and one parallel light reception line on the other side of the transport track.
  • a device for the evaluation of hits from shooting targets with a housing in which a motor-driven transport device for the shooting target or the -disc belt is arranged, with a light transmission line arranged on one side of the transport path for the target, aligned transversely to the direction of transport, and one parallel light reception line on the other side of the transport track.
  • a device for the evaluation of hits from shooting targets with a housing in which a motor-driven transport device for the shooting target or the -disc belt is arranged, with a light transmission line arranged on one side of the transport path for the target, aligned transversely to the direction of transport, and one parallel light reception line on
  • the novelty of the invention according to claim 10 is now that the light receiving line as a Over the entire length of the incident light illumination unit equipped scanner or surface image sensor is designed as the only light receiving element for the transmitted light penetrating the shot hole and the reflected light reflected from the pane and that the light transmission line and the light receiving line are arranged in or symmetrically to a transverse plane crossing the pane transport path at right angles.
  • the line-by-line scanner is preferred for the invention, since it takes up little space in the housing and is inexpensive.
  • the disk For the shot hole edge detection and for the detection of the adjacent disk ring, the disk must be moved a small distance in the order of the shot hole diameter.
  • the scanning of a partial area of the shot hole is sufficient, so that a transport distance of the disk of half the diameter of the shot hole is sufficient for the scanning.
  • an area scan camera is used instead of the line scanner, which in principle consists of a large number of scanners placed one behind the other, then the edge of the shot hole and the ring arch can be evaluated at the moment. The disc remains at rest during the scanning. The evaluation speed increases, but the construction effort is greater.
  • An alternative solution of the device according to the invention uses, according to claim 14, two scanners one behind the other in the disk transport direction, one of which is assigned to the light transmission line for determining the edge of the hole, while the other receives the reflected incident light for determining the ring arc.
  • the two scanners can work at the same time because the lights do not interfere with each other.
  • a housing 10 Arranged in a housing 10 are two pairs of transport rollers 12, 14, which are synchronized with one another, for transporting a shooting belt 16, which are driven by a motor 18 which can be driven in both directions.
  • a fork light barrier 20 detects the presence of a shooting target 16 and puts the motor 18 into operation at high speed.
  • a scanner 22 is arranged above the disk transport path, which extends over the usable width of the housing.
  • the shooting disk band 16 does not take up the full usable width of the housing 10. With one edge, the shooting target belt 16 lies against a fixed angular stop 24 and with the other edge against a manually movable stop bar 26 which is adjustable up to the dashed position 26 '.
  • a light transmission line 28 is arranged below the disk belt 16, which also extends over the entire useful width of the housing 10 and whose upward light strikes the underside of the shooting disk belt 16 almost perpendicularly via a cylindrical lens 30.
  • the motor 18 is reduced to operating speed, which is synchronized with the scanning speed of the scanner 22.
  • a scanner of normal, i.e. not particularly high resolution is able to capture eight pixels per millimeter.
  • the pixel distance is thus 0.12 mm.
  • This is also the line width.
  • the scanner 22 receives transmitted light from the light transmission line 28 and thus generally detects two opposite edge points of the hole which are fed to a computer memory.
  • the light transmission line 28 is then switched off by the next half line width during the feed.
  • the scanner now only receives the reflected incident light from an incident light line 32 built into the scanner 22.
  • the scanner generally detects two points which lie on the ring of the shooting disk 16 adjacent to the shot hole.
  • the two lighting lines 28, 32 can be switched on and off alternately.
  • the incident light 32 can also be in continuous operation, since the electronics downstream of the scanner 22 can distinguish the two light sources.
  • the distance from the center of the hole to the center of the disc is calculated, which is proportional to the result of the shot, which is shown on a display (not shown) and printed on an edge field 36 of the disc band 16 by means of a printer 34.
  • the computing time is 0.2 s to 0.6 s, so that the overall evaluation is of the order of 1 second.
  • the computer determines that the reference polygon superimposed on the actual polygon of the edge points of the shot hole has deviations that are too large, which e.g. indicates a very frayed shot hole
  • the optical scanning of the shot hole is only detected as a rough determination of its position and the shooting disk 16 is transported at high speed until the shot hole reaches a transverse plane 38, where a secondary scanning takes place.
  • a carriage 40 is guided on guides over the entire usable housing width and is connected to a drive belt 42 which is driven by a reversible stepper motor 44.
  • the carriage 40 carries a mechanical scanner 46, which is shown in detail in FIG. 3 is illustrated.
  • a lifting platform 50 is guided in a vertically movable manner on the carriage 40 by means of guide pins 48. It is pressed by compression springs 52, which surround the guide pins 48, into an upper position, which is determined by the position of an eccentric disk 54 of a geared motor 56.
  • a centering mandrel 58 is cardanic by means of a self-aligning ball bearing 60, i.e. sideways in all directions: swivel-mounted.
  • the centering pin 58 is axially displaceably mounted in the inner ring of the bearing 60 without play.
  • a coil spring that surrounds the centering mandrel 58 supports it.
  • the lifting platform 50 In the rest position of this secondary scanning device 46, the lifting platform 50 is in its upper position, in which the rear conical surface of the mandrel tip is locked in the receptacle of the carriage 40.
  • the stepping motor 18 transports the disc belt 16 by the fixed distance between the optical system and the central transverse plane of the carriage 40.
  • the stepping motor 44 moves it into the optically roughly determined transverse position of the shot hole. The two movements are offset against the roughly determined shot hole position.
  • the shot hole is then in the detection area of the centering mandrel 58.
  • the gear motor 56 is now actuated, which rotates the eccentric disk 54 by half a turn into the position shown in FIG. 3 position shown brings.
  • the lifting platform 50 then has its lower working position and the centering mandrel 58 penetrates into the shot hole. It is pivoted in the self-aligning ball bearing 60.
  • a light-emitting diode 62 is provided at the upper end of the centering mandrel 58, which illuminates a four-quadrant photodiode system 64 which is arranged on a mounting bracket of the lifting platform 50 such that the levels of all four quadrants of the diode system 64 are the same when the centering mandrel 58 is in its neutral position.
  • the helical spring supporting the centering mandrel 58 ensures that the shot hole is only loaded by the weight of the centering mandrel 58, so that the permissible load on the shot hole is not exceeded.
  • an axial relative movement of the centering mandrel 58 begins at the moment of placement on the edge of the shot hole. Because of the greater proximity to the four-quadrant photodiode system 64, the level sum thereof decreases. This reduction is a measure of the mechanical concentric hole loading.
  • the control of the correction values by the secondary scanning device 46 can also be carried out in such a way that, after the centering mandrel 58 has been put in place, the disk 16 is adjusted in the transport direction or counter to the transport direction and the carriage 40 transversely to the transport direction until all level differences of the four-quadrant photodiode system 64 Are zero. The exact shot hole position can then be calculated from the additional travel paths and the rough position of the shot hole.
  • the mechanical secondary scanning device 46 also enables one-sided scanning of so-called fork shots or double shots with defined hole edge loading.
  • the hole edge load vector can be determined by vectorial addition of the level differences.
  • the required angular position of the centering mandrel 58 can be set in the angular position of the hole edge region to be probed, which is known from the optical rough evaluation.
  • FIG. 1 also shows the lower part of an ultrasound barrier which can be used as an alternative to the mechanical secondary scanning system 46.
  • An ultrasound transmitter with the radiation axis directed downward is then arranged on the carriage 40 in the transverse plane 38.
  • a further carriage 66 is likewise arranged displaceably on transverse guides underneath the disk belt 16 and is fastened to a belt 68 corresponding to the drive toothed belt 42.
  • the two belts 42, 68 are synchronized via deflection pinions.
  • the carriage 66 carries an ultrasound receiver. The method of operation corresponds to that described with reference to the mechanical secondary scanner 46.
  • the ultrasound barrier is adjusted to the transverse position of the shot hole roughly determined by the optical system by displacing the two carriages 40, 66, after which the pane transport and the carriage transport are changed until the ultrasound reception reaches its maximum.
  • the correction paths of the two motors 18, 44 are then offset against the rough position in the computer.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Image Analysis (AREA)
EP91110143A 1990-06-29 1991-06-20 Procédé et dispositif pour évaluer les coups sur une cible Expired - Lifetime EP0463566B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9116709U DE9116709U1 (de) 1990-06-29 1991-06-20 Vorrichtung zur Trefferauswertung von Schießscheiben

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4020658 1990-06-29
DE4020658A DE4020658A1 (de) 1990-06-29 1990-06-29 Verfahren und vorrichtung zur trefferauswertung von schiessscheiben

Publications (3)

Publication Number Publication Date
EP0463566A1 true EP0463566A1 (fr) 1992-01-02
EP0463566B1 EP0463566B1 (fr) 1995-05-17
EP0463566B2 EP0463566B2 (fr) 1999-03-17

Family

ID=6409286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91110143A Expired - Lifetime EP0463566B2 (fr) 1990-06-29 1991-06-20 Procédé et dispositif pour évaluer les coups sur une cible

Country Status (3)

Country Link
EP (1) EP0463566B2 (fr)
AT (1) ATE122781T1 (fr)
DE (2) DE4020658A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327500A1 (de) * 1993-08-16 1995-02-23 Knestel Elektronik Gmbh Verfahren und Vorrichtung zur Trefferauswertung von Schießscheiben
US8570499B2 (en) 2009-08-25 2013-10-29 Sius Ag Method for electronically determining the shooting position on a shooting target

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4207933C2 (de) * 1992-03-12 1997-03-20 Spieth Ernst K Gmbh Anordnung zur Anzeige und Auswertung von Treffern auf Schießscheiben
DE29512828U1 (de) * 1995-08-09 1995-10-19 Knestel Elektronik Gmbh Scheibenstand für Sportschützen
DE102015005059A1 (de) 2015-04-20 2016-10-20 Andreas Obrebski Mobile Vorrichtung zu berührungslosen Auswertung von Zielscheiben
CN110132070B (zh) * 2019-04-24 2024-04-12 中国人民解放军陆军工程大学 一种火炮击针突出量检测装置与火炮击针突出量检测方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983000920A1 (fr) * 1981-09-01 1983-03-17 Huscher, Georg Procede et dispositif pour evaluer les coups sur une cible
DE3700836A1 (de) * 1987-01-14 1988-07-28 Immendorf Karl Martin Dipl Ing Praezisionsschuetzenstand
DE3806644A1 (de) * 1988-03-02 1989-09-14 Werner Langhans Schiessanlage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2701042A1 (de) * 1976-01-12 1977-07-21 Filippini Vorrichtung zur fernerfassung von einschuessen auf einer zielscheibe
DE2625500A1 (de) * 1976-06-05 1977-12-15 Ramke Fa Hans Scheibenstand fuer eine schiessport- anlage
DE2625550A1 (de) * 1976-06-05 1977-12-15 Goetzewerke Elastische wellenkupplung
DE7703277U1 (de) * 1977-02-04 1977-05-18 Keil, Karl, 8860 Noerdlingen Messgeraet fuer beschossene zielscheiben
SE7904508L (sv) * 1978-05-26 1979-11-27 Australasian Training Aids Pty Malanordning
DE3729613A1 (de) * 1987-09-04 1989-03-23 Rudolf Dipl Ing Pura Schiessanlage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983000920A1 (fr) * 1981-09-01 1983-03-17 Huscher, Georg Procede et dispositif pour evaluer les coups sur une cible
DE3700836A1 (de) * 1987-01-14 1988-07-28 Immendorf Karl Martin Dipl Ing Praezisionsschuetzenstand
DE3806644A1 (de) * 1988-03-02 1989-09-14 Werner Langhans Schiessanlage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327500A1 (de) * 1993-08-16 1995-02-23 Knestel Elektronik Gmbh Verfahren und Vorrichtung zur Trefferauswertung von Schießscheiben
DE4327500C2 (de) * 1993-08-16 1996-05-09 Knestel Elektronik Gmbh Gerät zur Trefferauswertung von Schießscheiben
US8570499B2 (en) 2009-08-25 2013-10-29 Sius Ag Method for electronically determining the shooting position on a shooting target

Also Published As

Publication number Publication date
ATE122781T1 (de) 1995-06-15
DE59105493D1 (de) 1995-06-22
EP0463566B1 (fr) 1995-05-17
EP0463566B2 (fr) 1999-03-17
DE4020658A1 (de) 1992-01-02

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