EP0086803A1 - Method and device for estimating the shots on a target. - Google Patents

Method and device for estimating the shots on a target.

Info

Publication number
EP0086803A1
EP0086803A1 EP82902528A EP82902528A EP0086803A1 EP 0086803 A1 EP0086803 A1 EP 0086803A1 EP 82902528 A EP82902528 A EP 82902528A EP 82902528 A EP82902528 A EP 82902528A EP 0086803 A1 EP0086803 A1 EP 0086803A1
Authority
EP
European Patent Office
Prior art keywords
light
light barrier
mirror
hole
center signal
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
EP82902528A
Other languages
German (de)
French (fr)
Other versions
EP0086803B1 (en
Inventor
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 Te Stegaurach Bondsrepubliek
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT82902528T priority Critical patent/ATE16420T1/en
Publication of EP0086803A1 publication Critical patent/EP0086803A1/en
Application granted granted Critical
Publication of EP0086803B1 publication Critical patent/EP0086803B1/en
Expired 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
    • 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
    • F41J5/14—Apparatus for signalling hits or scores to the shooter, e.g. manually operated, or for communication between target and shooter; Apparatus for recording hits or scores
    • F41J5/16—Manually evaluating scores, e.g. using scoring plugs or gauges; Apparatus for evaluating scores on targets after removal from the target holder

Definitions

  • Target shooting uses shooting targets with a number of concentric rings and a dark mirror in the middle. The distance between the bullet hole and the center of the mirror is determined by the eye.
  • the object of the invention is to provide a method and a device for automatic hit evaluation of shooting targets in order to avoid subjective measurement errors, to improve the evaluation accuracy and to reduce the evaluation time.
  • the invention consists in that a single disk or a disk belt passes through a first light barrier system, which generates a lo-center signal Lx and a mirror center signal Sx in the belt running direction x.
  • the belt drive generates path pulse signals Ix that are proportional to the belt feed. Only the path pulse rate that occurs between the generation of the signals Lx and Sx is passed through a pulse gate circuit.
  • the path pulse sum X is formed from the number of these path pulses.
  • a second light barrier system corresponding to the first light barrier system and arranged at right angles to this becomes rola Moved tiv to the shooting target transversely to its conveying direction and the path impulses in the direction y of this transverse movement between the formation of a hole center signal Ly and a mirror center signal Sy are added and stored as a total value Y in a corresponding manner.
  • the result is displayed as a ring number value, for example with a 10th division, and / or fed to a printer or a computer system.
  • the respective central signals are determined by sensing the opposite edge signals.
  • the evaluation accuracy is 10 times greater than that of manual evaluation and the evaluation time is only about 1 second.
  • FIG. 1 shows a side view of the evaluation device
  • FIG. 2 shows a schematic top view of the device according to FIG. 1;
  • FIG. 3 shows schematically the arrangement and function of one of two light barrier systems used
  • Figure 4 illustrates one half in perspective a stationary light barrier system, which sits in front of the first pair of feed rollers;
  • Figure 5 is a circuit diagram showing the various electronic components.
  • the shooting target evaluation unit consists of a prismatic housing 14 with a tapering inlet gap 22 on the front and an outlet gap 16 on the opposite housing wall.
  • the roller 28 is driven directly by a drive motor 36 which is connected to a step pulse generator 2. Both rollers 24, 28 of the roller pairs carry gear wheels 31, 32 and are synchronized by a toothed belt 34.
  • the second light barrier system 3 is arranged on a cross-movable carriage 38, which consists of an upper plate 40 and a lower plate 42 ', both of which are displaceably guided independently of one another on guide rods 42, 44 and 46, 48 fixed to the housing.
  • a vertical drive shaft 50 and on the other side a deflecting shaft 52 rotatably mounted.
  • Both shafts carry upper and lower gear wheels 54, 56.
  • the two upper gear wheels 54, 54 and the two lower gear wheels 56, 56 are each wrapped by a toothed belt 58 and 60, respectively.
  • the drive shaft 50 is connected directly to a drive motor 62 which also has a step pulse generator 4 (FIG. 5).
  • the motor 62 can be reversed.
  • Both toothed belts 58, 60 have driver pins 64, 66 which engage in corresponding bores in the plates 40, 42 'so that the motor 62 can alternately reciprocate them in opposite directions across the feed path of the belt 18.
  • the light barrier system 1 includes an upper plate 68 and a lower plate 70, both of which are of the same size and extend across the disc band 18.
  • the length of the plates is at least equal to the diameter of the largest disc ring.
  • Both plates 68, 70 are at approximately the same distance from the plane of movement of the belt 18, which is approximately 2 to 5 times the diameter of a bullet hole 72.
  • On the underside of the top plate 68 are approximately equal to twice the diameter of the bullet hole in the transverse spacing two extending over substantially the entire length of the plate 68
  • Photo transistor lines 74, 76 arranged.
  • a light emitting line 80 Arranged in the vertical plane of symmetry 78 to these two lines 74, 76 on the lower plate 70 is a light emitting line 80 consisting of a plurality of diodes or transistors lying close together.
  • the receiver line 74 When the belt 18 moves in the direction of the arrow 82, the receiver line 74 first receives light from the transmission line 80 through the shot hole 72. As soon as both receiver lines 74, 76 receive the same brightness, a signal Lx, the so-called punch center signal, is transmitted via a known comparator circuit generated for movement in the belt conveying direction.
  • a signal Sx is triggered in the light barrier system 1 when the center of the mirror 20 reaches the vertical plane 78 with the pane belt 18 moved forward.
  • two reflective light barriers 84, 86 are arranged on the underside of the top plate 68 - one behind the other in the conveying direction and at a distance approximately the same as the diameter of a disk mirror 20, which are not cell-shaped but button-shaped and each consist of a light transmitter and an integrated light receiver. Since the window mirror is black and its external surroundings are white, the Stel receives 3 the reflection light barrier 86 more light than the light barrier 84, since more light is reflected from the white surface.
  • both light barriers 84, 86 receive the same brightness if the mirror 20 is to the left of the position shown in FIG. 3.
  • the reception of the same brightness values in the light barriers 84, 86 is in turn processed in a comparator circuit to the mirror center signal Sx mentioned.
  • the two reflection light barriers 84, 86 could be arranged in the central vertical longitudinal plane of the belt conveyor track. However, it is better to use a second pair of reflection light barriers 88, 90, which corresponds to the first pair of light barriers 84, 86, the one pair of barriers being arranged on one side and the other pair on the other side of this vertical longitudinal center plane.
  • each of the four reflection light barriers 84-90 is assigned a phototransistor 92 and 94, respectively, in the extension of the light seride beam on the top of the lower plate 70 of the light barrier system 1. Namely, when the shot hole 72 is in the bright area of the mirror edge area which its diffusely reflected light to the receivers of the reflection light barriers 84.86.
  • the light barrier system 3 corresponds exactly to the system 1. However, it is fastened to the cross slide 38 by 90 °. After the mirror center signal Sx is generated when a shooting target mirror 20 passes through the light barrier system 1, the motor 36 is stopped at the moment in which, after counting the number of step pulses, the mirror center has approximately reached the central vertical transverse plane 96 of the cross slide 38. The motor 62 thus starts up and moves the cross slide 38 perpendicular to the conveying direction of the belt 18 by an amount which is at least equal to the outer diameter of the shooting disk. In this light barrier system 3, the pane center signal Sy and the shot hole center signal Ly are generated analogously to the system 1. The two pulse generators 2 and 4 of the motors 36 and 62 deliver impulses Ix and iy continuously during engine running times.
  • the path pulse signal Ix, the hole center signal Lx and the mirror center signal Sx are fed to a pulse gate circuit 5, with the aid of the signal pair Lx / Sx only the pulse rate which corresponds to the x coordinate between the hole center and the mirror center is passed through.
  • the y coordinate of these center distances is determined from the signals Sy, Ly and Iy in a gate circuit 6.
  • the transmitted pulse rates x are counted in a memory counter 7 and buffered.
  • the transmitted pulse rates y are processed in the counter memory 8 accordingly.
  • the value r is therefore proportional to the distance between the center of the shot hole and the center of the mirror.
  • the r-signal is processed by multiplication with an adjustable calibration factor and decoding in the circuit 10 to the ring number value, for example with a 10th division as the measurement result and sent to a printer 11 or an EDP system 12.
  • the printer 11 can count be printer, which adds up the measurement results (ring number values) in the individual disks of the belt 19.
  • An alternative embodiment for the light barrier systems 1, 3 consists in that the phototransistor line 76 is omitted to determine the hole edge signals and the remaining phototransistor line 74 is aligned vertically with the light transmission line 80. If a predetermined response level is reached at one edge of the hole, the travel pulse rate of the disc belt or the slide is counted until the same response level is reached at the opposite edge of the hole. The center of the hole is determined by halving the path pulse rate. A corresponding procedure is advantageously used when determining the mirror center signal.
  • the pair Re arranged behind the pair of photo transistor lines 74, 80 in the direction of advance of the shooting disc 18 and the slide 38, respectively reflection light barriers 84.88 are omitted.
  • the first mirror edge signal is recorded by the mirror edge sensor 86 or 90 when the light-dark boundary is passed when a preselected response level is reached, and the path pulse rate is counted until the same response level is determined by the same sensor 86 or 90 when it passes the dark light limit on the opposite mirror edge.
  • the first mirror edge signal is a common start of counting for the pulse rates to determine the difference between the mirror center and hole center coordinates.
  • the mirror edge sensor 86 or 90 must lie at a distance in front of the pair of hole sensors 74, 80 in the direction of movement of the disk or the slide 38. This distance is taken into account when forming the difference by means of a corresponding constant path pulse rate.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Automatic Disk Changers (AREA)
  • Packaging For Recording Disks (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Debugging And Monitoring (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

L'appareil pour évaluer les coups sur une cible présente deux détecteurs optiques (1, 3). L'un est maintenu dans un endroit fixe de la trajectoire d'une cible et permet à l'appareil de déterminer la distance du trou au centre de la cible dans le sens de déplacement de la cible (18). L'autre détecteur est fixé à une glissière transversale (38) qui est mobile perpendiculairement à la direction de déplacement de la cible et mesure la distance du trou au centre de la cible dans une direction transversale. Les deux vecteurs de distance sont additionnés vectoriellement par un calculateur adéquat et multipliés par un facteur d'étalonnage. Le résultat de la mesure peut alors être indiqué sous la forme d'un dixième d'anneau, imprimé ou fourni à une installation de traitement de l'information.The apparatus for evaluating hits on a target has two optical detectors (1, 3). One is held in a fixed location in the path of a target and allows the apparatus to determine the distance from the hole to the center of the target in the direction of movement of the target (18). The other detector is attached to a cross slide (38) which is movable perpendicular to the direction of movement of the target and measures the distance from the hole to the center of the target in a transverse direction. The two distance vectors are added vectorally by a suitable computer and multiplied by a calibration factor. The result of the measurement can then be indicated in the form of a tenth of a ring, printed or supplied to an information processing installation.

Description

Verfahren und Vorrichtung zur Trefferauswertung von Schießscheiben Method and device for evaluating hits from shooting targets
Beim Leistungsschießen werden Schießscheiben verwendet, die eine Anzahl konzentrischer Ringe und im Mittelbereich einen dunklen Spiegel aufweisen. Der Abstand des Einschußloches von der Spiegelmitte wird mit dem Auge bestimmt.Target shooting uses shooting targets with a number of concentric rings and a dark mirror in the middle. The distance between the bullet hole and the center of the mirror is determined by the eye.
Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zur automatischen Trefferauswertung von Schießscheiben zu schaffen, um subjektive Meßfehler zu vermeiden, die Auswertegenataigkeit zu verbessern und die Auswertzeit herabzusetzen.The object of the invention is to provide a method and a device for automatic hit evaluation of shooting targets in order to avoid subjective measurement errors, to improve the evaluation accuracy and to reduce the evaluation time.
Die Erfindung besteht prinzipiell darin, daß eine Einzelscheibe oder ein Scheibenband ein erstes Lichtschrankensystem durchläuft, welches in Bandlaufrichtung x ein Loσhmittensignal Lx und ein Spiegelmittensignal Sx erzeugt. Vom Bandantrieb werden dem Bandvorschub proportionale Wegimpulssignale Ix erzeugt. Durch eine Impulstorschaltung wird nur diejenige Wegimpulsrate hindurchgelassen, welche zwischen dem Entstehen der Signale Lx und Sx auftritt. Aus der Zahl dieser Wegimpulse wird die Wegimpulssumme X gebildet. Ein zweites, dem ersten Lichtschrankensystem entsprechendes und rechtwinklig zu diesem angeordnetes Lichtschrankensystem wird rola tiv zur Schießscheibe quer zu dessen Förderrichtung bewegt und es werden in entsprechender Weise die Wegimpulse in Richtung y dieser Querbewegung zwischen dem Entstehen eines Lochmittensignals Ly und eines Spiegelmittensignals Sy addiert und als Summenwert Y gespeichert. Die Werte X und Y werden einem Vektorrechner zugeführt, welcher den Term r = bildet, wobei r proportional zur Entfernung Schußlochmitte-Spiegelmitte ist. Dieser Wert r wird mit einem einstellbaren Eichfaktor multipliziert. Das Ergebnis wird als Ringzahlenwert z.B. mit 10tel Teilung angezeigt und/oder einem Drucker bzw. einer EDV-Anlage zugeführt.In principle, the invention consists in that a single disk or a disk belt passes through a first light barrier system, which generates a lo-center signal Lx and a mirror center signal Sx in the belt running direction x. The belt drive generates path pulse signals Ix that are proportional to the belt feed. Only the path pulse rate that occurs between the generation of the signals Lx and Sx is passed through a pulse gate circuit. The path pulse sum X is formed from the number of these path pulses. A second light barrier system corresponding to the first light barrier system and arranged at right angles to this becomes rola Moved tiv to the shooting target transversely to its conveying direction and the path impulses in the direction y of this transverse movement between the formation of a hole center signal Ly and a mirror center signal Sy are added and stored as a total value Y in a corresponding manner. The values X and Y are fed to a vector computer which has the term r = forms, where r is proportional to the distance from the center of the shot hole to the center of the mirror. This value r is multiplied by an adjustable calibration factor. The result is displayed as a ring number value, for example with a 10th division, and / or fed to a printer or a computer system.
Die ieweiliqen Mittensiqnale werden durch Abfühlen der gegenüberliegenden Randsignale ermittelt. Dadurch wird eine im Vergleich zur manuellen Auswertung 10mal größere Auswertgenauigkeit erreicht und die Auswertezeit beträgt nur etwa 1 Sekunde.The respective central signals are determined by sensing the opposite edge signals. As a result, the evaluation accuracy is 10 times greater than that of manual evaluation and the evaluation time is only about 1 second.
Die Zeichnung veranschaulicht ein Ausführungsbeispiel.The drawing illustrates an embodiment.
Figur 1 zeigt eine Seitenansicht des Auswertgerätes;FIG. 1 shows a side view of the evaluation device;
Figur 2 zeigt eine schematische Draufsicht auf das Gerät gemäß Figur 1;FIG. 2 shows a schematic top view of the device according to FIG. 1;
Figur 3 zeigt schematisch Anordnung und Funktion eines von zwei verwendeten Lichtschrankensystemen;Figure 3 shows schematically the arrangement and function of one of two light barrier systems used;
Figur 4 veranschaulicht perspektivisch eine Hälfte eines ortsfesten Lichtschrankensystems, welches vor dem ersten Einzugwalzenpaar sitzt; Figur 5 ist ein Schaltbild zur Darstellung der verschiedenen elektronischen Bauteile.Figure 4 illustrates one half in perspective a stationary light barrier system, which sits in front of the first pair of feed rollers; Figure 5 is a circuit diagram showing the various electronic components.
Das Schießεσheiben-Auswertgerät besteht aus einem prismatischen Gehäuse 14 mit einem sich verjüngenden Einlaßspalt 22 an der Vorderseite und einem Auslaßspalt 16 an der gegenüberliegenden Gehäusewand. Ein Schießseheiben band 18, das mehrere Scheiben mit äußeren Ringen und innerem Spiegel 20 enthält, wird in den Spalt 22 eingeschoben und passiert, nachdemes von einem Einzugsrollenpaar 24, 26 erfaßt wird nacheinander zwei Lichtschrankensysteme 1 und 3 zwischen denen ein zweites Rollenpaar 28, 30 angeordnet ist, um auch Einzelscheiben auswerten zu können. Die Rolle 28 wird direkt von einem Antriebsmotor 36 angetrieben, der an einem Schrittimpulsgeber 2 angeschlossen ist. Beide Rollen 24, 28 der Rollenpaare tragen Zahnräder 31, 32 und sind durch einen Zahnriemen 34 synchronisiert.The shooting target evaluation unit consists of a prismatic housing 14 with a tapering inlet gap 22 on the front and an outlet gap 16 on the opposite housing wall. A shooting target band 18, which contains a plurality of discs with outer rings and inner mirror 20, is inserted into the gap 22 and passes after it is detected by a pair of feed rollers 24, 26, two light barrier systems 1 and 3 between which a second pair of rollers 28, 30 are arranged is in order to be able to evaluate single slices. The roller 28 is driven directly by a drive motor 36 which is connected to a step pulse generator 2. Both rollers 24, 28 of the roller pairs carry gear wheels 31, 32 and are synchronized by a toothed belt 34.
Das zweite Lichtschrankensystem 3 ist auf einem querverfahrbaren Schlitten 38 angeordnet, der aus einer oberen Platte 40 und einer unteren Platte 42' besteht, die beide unabhängig voneinander an gehäusefesten Führungsstangen 42, 44 bzw. 46, 48 verschiebbar geführt sind. Außerhalb der Bewegungsbahh dos Scheibenbandes 18 ist auf d er ej nen Seite eine vertikale Antriebswelle 50 und auf der anderen Seite ein Umlenkwelle 52 drehbar gelagert. Beide Wellen tragen obere und untere Zahnräder 54, 56. Die beiden oberen Zahnräder 54, 54 und die beiden unteren Zahnräder 56, 56 werden jeweils durch einen Zahnriemen 58 bzw. 60 umschlungen. Die Antriebswelle 50 ist direkt mit einem Antriebsmotor 62 verbunden, der ebenfalls einen Schrittimpulsgeber 4 (Figur 5) aufweist. Der Motor 62 ist umsteuerbar. Beide Zahnriemen 58, 60 weisen Mitnehmerstifte 64, 66 auf, die in entsprechende Bohrungen der Platten 40, 42' eingreifen, so daß diese vom Motor 62 abwechselnd in entgegengesetzten Richtungen quer über die Vorschubbahn des Bandes 18 hin- und herbewegt werden können.The second light barrier system 3 is arranged on a cross-movable carriage 38, which consists of an upper plate 40 and a lower plate 42 ', both of which are displaceably guided independently of one another on guide rods 42, 44 and 46, 48 fixed to the housing. Outside the movement path of the disc belt 18, the ej NEN side a vertical drive shaft 50 and on the other side a deflecting shaft 52 rotatably mounted. Both shafts carry upper and lower gear wheels 54, 56. The two upper gear wheels 54, 54 and the two lower gear wheels 56, 56 are each wrapped by a toothed belt 58 and 60, respectively. The drive shaft 50 is connected directly to a drive motor 62 which also has a step pulse generator 4 (FIG. 5). The motor 62 can be reversed. Both toothed belts 58, 60 have driver pins 64, 66 which engage in corresponding bores in the plates 40, 42 'so that the motor 62 can alternately reciprocate them in opposite directions across the feed path of the belt 18.
Das Lichtschrankensystem 1 enthält eine obere Platte 68 und eine untere Platte 70, die beide gleich groß sind und sich quer über das Scheibenband 18 erstrecken. Die Länge der Platten ist mindestens gleich dem Durchmesser des größten Scheibenringes. Beide Platten 68, 70 haben von der Bewegungsebene des Bandes 18 etwa den gleichen Abstand, der etwa das 2- bis 5-Fache des Durchmessers eines Einschußloches 72 beträgt. An der Unterseite der Oberplatte 68 sind im Querabstand etwa gleich dem doppelten Durchmesser des Einschußloches zwei über im wesentlichen die gesamte Länge der Platte 68 reichende Fototransistorzeilen 74, 76 angeordnet. In der vertikalen Symmetrieebene 78 zu diesen beiden Zeilen 74, 76 ist auf der unteren Platte 70 eine aus einer Vielzahl dicht nebeneinanderliegender Dioden bzw. Transistoren bestehende Lichtsendezeile 80 angeordnet.The light barrier system 1 includes an upper plate 68 and a lower plate 70, both of which are of the same size and extend across the disc band 18. The length of the plates is at least equal to the diameter of the largest disc ring. Both plates 68, 70 are at approximately the same distance from the plane of movement of the belt 18, which is approximately 2 to 5 times the diameter of a bullet hole 72. On the underside of the top plate 68 are approximately equal to twice the diameter of the bullet hole in the transverse spacing two extending over substantially the entire length of the plate 68 Photo transistor lines 74, 76 arranged. Arranged in the vertical plane of symmetry 78 to these two lines 74, 76 on the lower plate 70 is a light emitting line 80 consisting of a plurality of diodes or transistors lying close together.
Bei der Bewegung des Bandes 18 in Richtung des Pfeiles 82 erhält zuerst die Empfängerzeile 74 durch das Schußloch 72 Licht von der Sendezeile 80. Sobald beide Empfängerzeilen 74, 76 die gleiche Helligkeit empfangen, wird über eine ansich bekannte Komparatorschaltung ein Signal Lx, das sogenannte Lochmittensignal für Bewegung in Bandförderrichtung erzeugt.When the belt 18 moves in the direction of the arrow 82, the receiver line 74 first receives light from the transmission line 80 through the shot hole 72. As soon as both receiver lines 74, 76 receive the same brightness, a signal Lx, the so-called punch center signal, is transmitted via a known comparator circuit generated for movement in the belt conveying direction.
Auf ähnliche Weise wie das Lochmittensignal Lx wird im Lichtschrankensystem 1 ein Signal Sx ausgelöst, wenn bei vorbewegtem Scheibenband 18 die Mitte des Spiegels 20 die Vertikalebene 78 erreicht. Zu diesem Zweck sind an der Unterseite der Oberplatte 68 - in Förderrichtung hintereinanderliegend und im Abstand etwa gleich im Durchmesser eines Scheibenspiegels 20 zwei Reflek tionslichtschranken 84, 86 angeordnet, die nicht zellenförmig sondern knopfförmig ausgebildet sind und je aus einem Lichtsender und einem integrierten Lichtempfänger bestehen. Da der Scheibenspiegel schwarz und seine äußere Umgebung weiß ist, empfängt bei der Stel lung des Scheibenspiegels 20 in Fig. 3 die Reflektions lichtschranke 86 mehr Licht als die Lichtschranke 84, da von der weißen Fläche mehr Licht reflektiert wird. Durchläuft also der Spiegel 20 das Lichtschrankenpaar 84, 86, so erhalten beide Lichtschranken 84,86 gleiche Helligkeit, wenn sich der Spiegel 20 links von der in Fig. 3 dargestellten Stellung befindet. Der Empfang gleicher Helligkeitswerte in den Lichtschranken 84,86 wird wiederum in einer Komparatorschaltung zu dem genannten Spiegelmittensignal Sx verarbeitet.In a manner similar to the hole center signal Lx, a signal Sx is triggered in the light barrier system 1 when the center of the mirror 20 reaches the vertical plane 78 with the pane belt 18 moved forward. For this purpose, two reflective light barriers 84, 86 are arranged on the underside of the top plate 68 - one behind the other in the conveying direction and at a distance approximately the same as the diameter of a disk mirror 20, which are not cell-shaped but button-shaped and each consist of a light transmitter and an integrated light receiver. Since the window mirror is black and its external surroundings are white, the Stel receives 3 the reflection light barrier 86 more light than the light barrier 84, since more light is reflected from the white surface. Thus, when the mirror 20 passes through the pair of light barriers 84, 86, both light barriers 84, 86 receive the same brightness if the mirror 20 is to the left of the position shown in FIG. 3. The reception of the same brightness values in the light barriers 84, 86 is in turn processed in a comparator circuit to the mirror center signal Sx mentioned.
Die beiden Reflektionslichtschranken 84,86 könnten in der mittleren vertikalen Längsebene der Bandförderbahn angeordnet sein. Besser ist jedoch die Verwendung eines zweiten Reflektionslichtschrankenpaares 88, 90, das dem ersten Lichtschrankenpaar 84,86 entspricht, wobei das eine Schrankenpaar auf der einen Seite und das andere Paar auf der anderen Seite von dieser vertikalen Längsmittelebene angeordnet ist. Zusätzlich ist jedem der vier Reflektionslichtschranken 84 - 90 ein Fototransistor 92 bzw. 94 in Verlängerung des Lichtseridestrahls auf der Oberseite der unteren Platte 70 des Lichtschrankensystems 1 zugeordnet. Wenn nämlich das Schußloch 72 im Hellgebiet desjenigen Spiegelrandbereiches liegt, welches sein diffus reflektiertes Licht zu den Empfängern der Reflektionslichtschranken 84,86. zurücksenden soll, so kann ein fehlerhaftes Spiegelmittensignal entstehen. Dies wird dadurch vermieden, daß von einem Schuß loch 72 im Reflektionsbereich von den Lichtschranken 84, 86 durchgelassenes Licht zu dem darunterliegenden Empfänger 92 bzw. 92 gelangt und da mit ein Signal erzeugt, welches das Lochmittensignal dieser beiden Lichtschranken 84, 86 unterdrückt und auf das Spiegelmittensignal Sx des anderen, vom Schußloch freien Spiegelrandgebiet betriebenen Reflektions lichtschrankenpaars 88, 90 umschaltet.The two reflection light barriers 84, 86 could be arranged in the central vertical longitudinal plane of the belt conveyor track. However, it is better to use a second pair of reflection light barriers 88, 90, which corresponds to the first pair of light barriers 84, 86, the one pair of barriers being arranged on one side and the other pair on the other side of this vertical longitudinal center plane. In addition, each of the four reflection light barriers 84-90 is assigned a phototransistor 92 and 94, respectively, in the extension of the light seride beam on the top of the lower plate 70 of the light barrier system 1. Namely, when the shot hole 72 is in the bright area of the mirror edge area which its diffusely reflected light to the receivers of the reflection light barriers 84.86. send back, a faulty mirror center signal can arise. This is avoided in that light from a shot hole 72 in the reflection area from the light barriers 84, 86 passes to the underlying receiver 92 or 92 and generates a signal which suppresses the hole center signal of these two light barriers 84, 86 and on that Mirror center signal Sx of the other pair of reflection light barriers 88, 90 operated from the shot hole-free mirror edge region switches.
Das Lichtschrankensystem 3 entspricht genau dem System 1. Es ist jedoch um 90° verdreht am Querschlitten 38 befestigt. Nachdem beim Durchgang eines Schießscheibenspiegels 20 durch das Lichtschrankensystem 1 das Spiegelmittensignal Sx erzeugt ist, wird der Motor 36 in dem Moment angehalten, indem nach Zählung der Schrittimpulszahl die Spiegelmitte etwa die mittlere vertikale Querebene 96 des Querschlittens 38 erreicht hat. Damit läuft der Motor 62 an und bewegt den Querschlitten 38 rechtwinklig zur Fδrderrichtung des Bandes 18 um einen Betrag, der mindestens gleich dem äußeren Durchmesser der Schießscheibe ist. In diesem Lichtschrankensystem 3 werden analog zum System 1 das Scheibenmittensignal Sy und das Schußloch-Mittensignal Ly erzeugt. Die beiden Impulsgeber 2 und 4 der Motoren 36 und 62 liefern während der Motorenlaufzeiten laufend Impulse Ix und iy.The light barrier system 3 corresponds exactly to the system 1. However, it is fastened to the cross slide 38 by 90 °. After the mirror center signal Sx is generated when a shooting target mirror 20 passes through the light barrier system 1, the motor 36 is stopped at the moment in which, after counting the number of step pulses, the mirror center has approximately reached the central vertical transverse plane 96 of the cross slide 38. The motor 62 thus starts up and moves the cross slide 38 perpendicular to the conveying direction of the belt 18 by an amount which is at least equal to the outer diameter of the shooting disk. In this light barrier system 3, the pane center signal Sy and the shot hole center signal Ly are generated analogously to the system 1. The two pulse generators 2 and 4 of the motors 36 and 62 deliver impulses Ix and iy continuously during engine running times.
Das WegimpulsSignal Ix, das Lochmittensignal Lx und das Spiegelmittensignal Sx werden einer Impulstorschaltung 5 zugeführt, wobei mit Hilfe des Signalpaares Lx/Sx nur diejenige Impulsrate hindurchgelassen wird, welche der x-Koordinate zwischen Lochmitte und Spiegelmitte entspricht. Entsprechend wird aus den Signalen Sy, Ly und Iy in einer Torschaltung 6 die y-Koordinate dieser Mittenabstände ermittelt. Die durchgelassenen Impulsraten x werden in einem Speicherzählwerk 7 gezählt und zwischengespeichert. Die durchgelassenen Impulsraten y werden entsprechend im Zählspeicher 8 verarbeitet. Die Impulssumme X und die Impulssumme Y aus den Speichern 7, 8 werden einem Vektorrechner 9 zugeführt, welcher aus den Werten X und Y den Term r = errechnet. Der Wert r ist damit proportional zur Entfernung zwischen Schußlochmitte und Spiegelmitte. Das r-Signal wird durch Multiplikation mit einem einstellbaren Eichfaktor und Dekodierung in der Schaltung 10 zum Ringzahlenwert z.B. mit 10tel Teilung als Meßergebnis aufbereitet und einem Drucker 11 oder einer EDV- Anlage 12 zugeleitet. Der Drucker 11 kann ein Zähl drucker sein, welcher die Meßergebnisse (Ringzahlenwerte) in den einzelnen Scheiben des Bandes 19 aufaddiert.The path pulse signal Ix, the hole center signal Lx and the mirror center signal Sx are fed to a pulse gate circuit 5, with the aid of the signal pair Lx / Sx only the pulse rate which corresponds to the x coordinate between the hole center and the mirror center is passed through. Correspondingly, the y coordinate of these center distances is determined from the signals Sy, Ly and Iy in a gate circuit 6. The transmitted pulse rates x are counted in a memory counter 7 and buffered. The transmitted pulse rates y are processed in the counter memory 8 accordingly. The pulse sum X and the pulse sum Y from the memories 7, 8 are fed to a vector computer 9 which, from the values X and Y, derives the term r = calculated. The value r is therefore proportional to the distance between the center of the shot hole and the center of the mirror. The r-signal is processed by multiplication with an adjustable calibration factor and decoding in the circuit 10 to the ring number value, for example with a 10th division as the measurement result and sent to a printer 11 or an EDP system 12. The printer 11 can count be printer, which adds up the measurement results (ring number values) in the individual disks of the belt 19.
Eine gedrängtere Bauweise und eine montageunabhängige Rechtwinkligkeit der Lichtschrankenzeilen 74, 76 beider Systeme 1, 3 werden erzielt, wenn beide Lichtschrankensysteme 1, 3 auf dem Querschütten 38 angeordnet werden, der dann während der Ermittlung der x-Signale stillstehen muß. Allerdings kann dann nur die Schlittenbewegung in einer Richtung zur Messung genutzt werden.A more compact design and an assembly-independent perpendicularity of the light barrier rows 74, 76 of both systems 1, 3 are achieved if both light barrier systems 1, 3 are arranged on the transverse chute 38, which must then stand still during the determination of the x signals. However, only the carriage movement in one direction can then be used for the measurement.
Eine alternative Ausführungsform für die Lichtschrankensysteme 1, 3 besteht darin, daß zur Ermittlung der Lochrandsignale die Fototransistorzeile 76 entfällt und die verbleibende Fototransistorzeile 74 mit der Lichtsendezeile 80 vertikal ausgerichtet wird. Wird ein vorgegebener Ansprechpegel an einem Lochrand erreicht, werden die Wegimpulsrate des Scheibenbandes bzw. des Schlittens gezählt bis derselbe Ansprechpegel am gegenüberliegenden Lochrand erreicht ist. Durch Halbierung der Wegimpulsrate wird die Lochmitte ermittelt. Entsprechend wird vorteilhafterweise bei der Ermittlung des Spiegelmittensignals verfahren. Das in Vorschubrichtung der Schießscheibe 18 bzw. des Schlittens 38 jeweils hinter dem Paar Fototransistorzeilen 74, 80 angeordnete Paar Re flexionslichtschranken 84,88 entfällt. Das erste Spiegelrandsignal wird beim Durchlaufen der Helldunkelgrenze bei Erreichen eines vorgewählten Ansprechpegels vom Spiegelrandsenεor 86 bzw. 90 festgehalten und die Wegimpulsrate gezählt bis derselbe Ansprechpegel beim Durchlaufen der Dunkelhellgrenze am gegenüberliegenden Spiegelrand von demselben Sensor 86 bzw. 90 ermittelt wird.An alternative embodiment for the light barrier systems 1, 3 consists in that the phototransistor line 76 is omitted to determine the hole edge signals and the remaining phototransistor line 74 is aligned vertically with the light transmission line 80. If a predetermined response level is reached at one edge of the hole, the travel pulse rate of the disc belt or the slide is counted until the same response level is reached at the opposite edge of the hole. The center of the hole is determined by halving the path pulse rate. A corresponding procedure is advantageously used when determining the mirror center signal. The pair Re arranged behind the pair of photo transistor lines 74, 80 in the direction of advance of the shooting disc 18 and the slide 38, respectively reflection light barriers 84.88 are omitted. The first mirror edge signal is recorded by the mirror edge sensor 86 or 90 when the light-dark boundary is passed when a preselected response level is reached, and the path pulse rate is counted until the same response level is determined by the same sensor 86 or 90 when it passes the dark light limit on the opposite mirror edge.
Wesentlich ist dabei, daß das erste Spiegelrandsignal jeweils gemeinsamer Zählstart für die Impulsraten zur Ermittlung der Differenz vom Spiegelmitten- und LochmittenKoordinaten ist. Deswegen muß der Spiegelrandsensor 86 bzw. 90 in Bewegungsrichtung der Scheibe bzw. des Schlittens 38 in einem Abstand vor dem Lochsensorzeilenpaar 74,80 liegen. Dieser Abstand wird bei der Differenzbildung durch eine entsprechende konstante Wegimpulsrate berücksichtigt. It is essential that the first mirror edge signal is a common start of counting for the pulse rates to determine the difference between the mirror center and hole center coordinates. For this reason, the mirror edge sensor 86 or 90 must lie at a distance in front of the pair of hole sensors 74, 80 in the direction of movement of the disk or the slide 38. This distance is taken into account when forming the difference by means of a corresponding constant path pulse rate.

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Verfahren zur Trefferauswertung von einen. Spiegel aufweisenden Schießscheiben, bei dem mittels zweier orthogonaler Lichtschrankensysteme die kartesischen Koordinaten des Einschusses ermittelt werden, dadurch gekennzeichnet,1. Procedure for the evaluation of hits by one. Shooting targets with mirrors, in which the Cartesian coordinates of the bullet are determined by means of two orthogonal light barrier systems, characterized in that
- daß die Schießscheibe in vorbestimmter Richtung relativ durch das erste Lichtschrankensystem, bewegt wird, aus welchem durch Abfühlen und Vergleichen der beiden gegenüberliegenden Lochrandsignale ein Lochmittensignal (Lx) und durch Abfühlen der Hell-Dunkel- übergänge an den gegenüberliegenden Spiegelrändern, zwei Spiegelrandsignale und daraus ein Spiegelmittensignal (Sx) gewonnen werden,- That the shooting target is relatively moved in the predetermined direction by the first light barrier system, from which, by sensing and comparing the two opposite hole edge signals, a hole center signal (Lx) and by sensing the light-dark transitions at the opposite mirror edges, two mirror edge signals and one therefrom Center mirror signal (Sx) are obtained,
- daß dem relativen Scheibenvorschub proportionale Vorschubsignale (Ix) erzeugt und der Vorschub-Differenzwert (X) zwischen den relativen Scheibenstellungen beim Auftreten des Spiegelmittensignals (Sx) und des Lochmittensignals (Lx) in einem Zähler (7) gezählt und zwischengespeichert wird,- that the relative disc feed proportional feed signals (Ix) are generated and the feed differential value (X) between the relative disc positions when the mirror center signal (Sx) and the hole center signal (Lx) is counted and buffered,
- daß der Spiegelmittenbereich und das zweite Licht schrankensystem (3) quer zur relativen Vorschubrichtung ausgerichtet werden,- That the mirror center area and the second light barrier system (3) are aligned transversely to the relative feed direction,
- daß das zweite Lichtschrankensystem unter beibehaltener Ausrichtung quer zur Scheibe relativ vorgeschoben wird und dabei in gleicher Weise über das Spiegelmittensignal (Sy), das Lochmittensignal (Ly) und die Vorschubsignale (Iy) der Vorschubdifferenzwert (Y) gezählt und zwischengespeichert wird, und- That the second light barrier system is relatively advanced transversely to the disc while maintaining alignment and thereby in the same way via the mirror center signal (Sy), the hole center signal (Ly) and the feed signals (Iy) the feed difference value (Y) is counted and buffered, and
- daß aus beiden Vorschubdifferenzwerten (X, Y) der dem Auswertergebnis proportionale Term r= ermittelt wird.- That from both feed difference values (X, Y) the term r = proportional to the evaluation result is determined.
2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet,2. Device for performing the method according to claim 1, characterized in that
- daß in einem Gehäuse (14) eine Scheibenfördereinrichtung (34-36) vorgesehen ist, der ein Wegimpulsgeber (2) zugeordnet ist,- That a disc conveyor (34-36) is provided in a housing (14), which is assigned a displacement encoder (2),
- daß das erste Lichtschrankensystem (1) während des Meßvorganges ortsfest gehalten und das zweite Lichtschrankensystem (3) im Abstand von diesem an einem Querschlitten (38) bewegbar angeordnet ist, welcher Querschlitten (38) mittels einer Antriebseinrichtung- That the first light barrier system (1) is held stationary during the measuring process and the second light barrier system (3) is movably arranged at a distance from it on a cross slide (38), which cross slide (38) by means of a drive device
(50-66) quer zur Scheibenbewegungsrichtung hin- und herbeweglich ist, welcher Antriebseinrichtung eben falls ein Wegimpulsgeber (4) zugeordnet ist und - daß Elemente einer elektronischen Torschaltung (5, 6) vorgesehen sind, die nur die Wegimpulse der Wegimpulsgeber (3, 4) jeweils zwischen dem Auftreten der Lochmittensignale (Lx, Ly) und der Spiegelmittensignale (Sx, Sy) in Zählspeichern (7, 8) durchlassen.(50-66) can be moved back and forth transversely to the direction of disk movement, which drive device if a displacement pulse generator (4) is assigned and - that elements of an electronic gate circuit (5, 6) are provided, which only the displacement pulses of the displacement pulse generators (3, 4) each between the occurrence of the hole center signals (Lx, Ly) and the mirror center signals (Sx , Sy) in counter memories (7, 8).
3. Vorrichtung nach Anspruch 2 , dadurch gekennzeichnet,3. Device according to claim 2, characterized in
- daß das Gehäuse (14) einen Einführungsschiitz (20) für die Scheibe und einen auf der gegenüberliegenden Gehäuseseite vorgesehenen Austrittsschlitz (16) aufweist.- That the housing (14) has an insertion slot (20) for the disk and an outlet slot (16) provided on the opposite side of the housing.
4. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet,4. Apparatus according to claim 2 or 3, characterized in
- daß jedes Lichtschrankensystem (1,3) zur Bestimmung des Lochmittensignals (Lx, Ly)eine Lichtsendezeile (80) auf einer Seite der Scheibenführungsbahn und mindestens eine Lichtempfängerzeile (74 bzw.76) auf deren anderer Seite aufweist.- That each light barrier system (1,3) for determining the hole center signal (Lx, Ly) has a light transmission line (80) on one side of the window guide track and at least one light receiver line (74 and 76) on the other side.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet. - daß jedes Lichtschrankensystem (1;3) zur Bestimmung des Lochmittensignals (Lx,Ly) zwei im Abstand etwa gleich dem doppelten Schußlochdurchmesser nebeneinander angeordnete parallele Lichtempfängerleisten5. The device according to claim 4, characterized. - That each light barrier system (1; 3) for determining the hole center signal (Lx, Ly) two parallel light receiver strips arranged next to one another at a distance approximately equal to twice the shot hole diameter
(74,76) aufweist, wobei das Dreieck mit der Lichtsendezeile (80) und den beiden Lichtempfangerleisten(74,76), the triangle with the light emitting line (80) and the two light receiving strips
(74,76) im Querschnitt als Eckpunkte gleichschenklig ist, wenn die beiden Lichtempfängerzeilen die Basis des Dreiecks bilden.(74,76) is isosceles in cross-section as corner points if the two rows of light receivers form the base of the triangle.
6. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet,6. The device according to claim 2 or 3, characterized in that
-daß jedes Lichtschrankensystem 1 ; 3) zur Bestimmung des Spiegelmittensignals (Sx; Sy) mindestens eine auf einer Seite der Scheibenführungsbahn angeordnete Reflexionslichtschranke (84; 86; 88; 90) aufweist.-that each light barrier system 1; 3) for determining the mirror center signal (Sx; Sy) has at least one reflection light barrier (84; 86; 88; 90) arranged on one side of the window guide track.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet,7. The device according to claim 6, characterized in that
- daß zwei Reflexionslichtschranken (84, 86; 88, 90) in Bewegungsrichtung der Schießscheibe bzw. des Querschlittens (38) in einem Abstand etwa gleich dem Spiegeldurchmesser der Scheibe hintereinander angeordnet sind.- That two reflection light barriers (84, 86; 88, 90) in the direction of movement of the target or the cross slide (38) are arranged one behind the other at a distance approximately equal to the mirror diameter of the disc.
8. Vorrichtung nach Anspruch 6 odor 7, dadurch geke nn zeichnet ,8. The device according to claim 6 odor 7, characterized geke nn draws,
- daß mindestens eine Reflexionslichtschranke (84; 86) auf einer Seite und mindestens eine zweite Reflexionslichtschranke (88; 90) angenähert symmetrisch auf der gegenüberliegenden Seite einer imaginären Mittelebene vorgesehen sind, welche die Bewegungsebene der Scheibe bzw. des Querschlittens rechtwinklig durchsetzt und daß beiden Reflexionsschranken jeweils ein zusätzliches Lichtempfangselement (92, 94) auf der der Scheibenbewegungsebene gegenüberliegenden Seite zugeordnet ist, welches im Fall eines Schußloches (72) im Bereich des auf die Scheibe auftreffenden Lichtstrahls von der jeweiligen Reflexionslichtschranke Licht erhält und ein Signal erzeugt, welches das Spiegelmittensignal (Sx; Sy) dieser Reflexionslichtschranke unterdrückt.- That at least one reflection light barrier (84; 86) on one side and at least one second reflection light barrier (88; 90) are provided approximately symmetrically on the opposite side of an imaginary central plane, which passes through the plane of movement of the disk or the cross slide at right angles and that both reflection barriers In each case an additional light receiving element (92, 94) is assigned on the side opposite the plane of the pane movement, which in the case of a shot hole (72) receives light from the respective reflection light barrier in the region of the light beam incident on the pane and generates a signal which transmits the mirror center signal (Sx ; Sy) suppresses this retro-reflective sensor.
9. Vorrichtung nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet,9. Device according to one of claims 2 to 8, characterized in
- daß beide Lichtschrankensysteme (1,3) auf dem Querschlitten (38) angeordnet sind.- That both light barrier systems (1,3) are arranged on the cross slide (38).
10. Vorrichtung nach Ansprüchen 4 und 6, dadurch gekennzeichnet,10. Device according to claims 4 and 6, characterized in
- daß die Reflexionslichtschrankεn (86; 90) beider Lichtschrankensysteme (1,3) in Bewegungsrichtung der Scheibe (18) bzw. desQuerschlittens (38) vor dem Lichtsende-Empfängerzeilenpaar (74,80) angeordnet sind. - That the reflection light barriers (86; 90) of both light barrier systems (1,3) in the direction of movement of the disc (18) or the cross slide (38) are arranged in front of the light transmitter-receiver line pair (74.80).
EP82902528A 1981-09-01 1982-08-24 Method and device for estimating the shots on a target Expired EP0086803B1 (en)

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DE3134561A DE3134561C2 (en) 1981-09-01 1981-09-01 Method and device for scoring hits from shooting targets
DE3134561 1981-09-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020658A1 (en) * 1990-06-29 1992-01-02 Disag International Juergen Sp METHOD AND DEVICE FOR EVALUATING SHOTPARTS
DE4327500A1 (en) * 1993-08-16 1995-02-23 Knestel Elektronik Gmbh Method and device for hit evaluation on targets
DE4327500C2 (en) * 1993-08-16 1996-05-09 Knestel Elektronik Gmbh Device for evaluating hits from shooting targets

Also Published As

Publication number Publication date
NO152353C (en) 1985-09-11
SU1225497A3 (en) 1986-04-15
ES515393A0 (en) 1983-05-01
IT8283440A0 (en) 1982-08-31
NO152353B (en) 1985-06-03
DD203626A5 (en) 1983-10-26
ES8305921A1 (en) 1983-05-01
AU551960B2 (en) 1986-05-15
JPS58501391A (en) 1983-08-18
JPH0423199B2 (en) 1992-04-21
DK173683D0 (en) 1983-04-20
IT1158139B (en) 1987-02-18
WO1983000920A1 (en) 1983-03-17
DK173683A (en) 1983-04-20
RO87361A (en) 1985-08-31
BR8207837A (en) 1983-09-06
CA1195000A (en) 1985-10-08
DE3267307D1 (en) 1985-12-12
EP0086803B1 (en) 1985-11-06
NO831452L (en) 1983-04-25
DE3134561A1 (en) 1983-05-11
US4523761A (en) 1985-06-18
GR77272B (en) 1984-09-11
AU8823082A (en) 1983-03-28
ZA826346B (en) 1983-07-27
DE3134561C2 (en) 1983-09-15

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