EP0932813A1 - Appareil constituant une cible pour installation de simulation de tir - Google Patents
Appareil constituant une cible pour installation de simulation de tirInfo
- Publication number
- EP0932813A1 EP0932813A1 EP97943720A EP97943720A EP0932813A1 EP 0932813 A1 EP0932813 A1 EP 0932813A1 EP 97943720 A EP97943720 A EP 97943720A EP 97943720 A EP97943720 A EP 97943720A EP 0932813 A1 EP0932813 A1 EP 0932813A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- target
- target device
- shot
- hit
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G3/00—Aiming or laying means
- F41G3/26—Teaching or practice apparatus for gun-aiming or gun-laying
- F41G3/2616—Teaching or practice apparatus for gun-aiming or gun-laying using a light emitting device
- F41G3/2622—Teaching or practice apparatus for gun-aiming or gun-laying using a light emitting device for simulating the firing of a gun or the trajectory of a projectile
- F41G3/2655—Teaching or practice apparatus for gun-aiming or gun-laying using a light emitting device for simulating the firing of a gun or the trajectory of a projectile in which the light beam is sent from the weapon to the target
-
- 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
- Target device for a system for simulated shooting
- the invention relates to a target device for a system for simulated shooting according to the preamble of claim 1.
- a target device of the type mentioned is known for example from DE 27 56 210 A.
- the detector is formed by a multiplicity of sensors designed as photo transistors.
- the collectors of the phototransistors correspond to the rings on the target and the emitters of the transistors correspond to the sectors of the target.
- This target device immediately delivers a hit signal in coarse polar coordinates of the hit.
- a disadvantage is not only the complex training due to the large number of phototransistors covering the target, but in particular also the imprecision of the hit detection.
- the shot signal must be optimally bundled, the cross-section must be smaller than the area of a photo transistor, and / or the shot must not be blurred, because otherwise more than one photo transistor will be activated and more complicated and expensive evaluation devices are required to improve the accuracy of the hit . If, on the other hand, the cross section of the shot signal is too small, it may not be possible to display if it strikes the dead area between the phototransistors. The light beam divergence leads to practically fixed exercise distances if the cross-section is to be optimal. The great The target and the density of the assignment with phototransistors as well as the freely selectable distance between the target device and the contactor are limited.
- Target devices are also known, for example from US Pat. Nos. 3,838,856 and 4,164,081 and DE 27 56 210 A cited above, in which the detector is formed by an image pickup tube that does not produce a hit in the form of the polar coordinates of the hit displays, but in which the target image is continuously scanned line by line and X and X coordinates are calculated.
- the shot signal is detected by a recording tube, which scans the image area line by line with an electrode beam. Since this scan is usually 25 to 50 times per sec. a shot signal must last at least 20 msec. to be recorded at all safely. Such a long shot signal does not correspond to the real conditions when shooting with a weapon, so that the gun must be kept still longer by the shooter in order to get a hit than would be necessary when shooting with live ammunition. It is also disadvantageous that the light beam generating the shot signal must be bundled very closely, in order not to cover a larger hit area than would correspond to the projectile impact on a corresponding target. The known aiming device therefore does not provide any conditions corresponding to shooting with live ammunition.
- the object of the invention is to design a target device of the type mentioned at the outset in such a way that a realistic simulation of the firing of a weapon is achieved with the simplest of means.
- the object is achieved according to the invention by the characterizing features of claim 1.
- a position-sensitive light sensor which is known as a PSD sensor, with at least one light-sensitive layer, each of which delivers two position signals defining the hit signal in the X and Y axes .
- Only a single PSD sensor is required for the detector, which results in a very simple and inexpensive detector that completely covers the entire target.
- an electrical hit signal is immediately available, so that shot signals of very short duration, for example, ⁇ 43 ⁇ sec. possible are.
- Such a short duration of the shot signal enables a realistic simulation of the firing of live ammunition with a weapon.
- a PSD sensor does not have to make high demands on the size and cross-section of the incoming shot signal, since when the incoming shot signal is detected, the entire cross-section does not provide an indication but only the center of gravity of the shot signal shown.
- the PSD sensor therefore enables very fast processing and therefore extremely short shot signals. Since only the center of gravity of the shot signal is evaluated, there is also a practically infinite resolution and thus very precise results, which enable simple and varied evaluation of the shot signal or the hit.
- the target device is equipped with a target image, which is either permanently installed or preferably exchangeable.
- the target device can be formed according to claim 2 with a target image arranged parallel to the focusing screen from a preferably transparent carrier layer that is transparent to the shot signal. So that the result of the hit is not falsified by the images, design according to claim 3 is advantageous.
- Backlight according to claim 4 is also expedient, which enables shooting even under unfavorable lighting conditions. The backlight also allows the target image to be better emphasized and the influence of extraneous light reduced.
- An embodiment of the target device according to claim 5 is also particularly advantageous, since then the focusing screen is not impaired by pictorial representations, but the shot signal reaches the focusing screen practically unaffected.
- the target image and / or a backlight can then be deposited on the mirrored glass pane, in which case the target image can be a simple paper or paper disc and no consideration needs to be given to the type of shot signal and / or the optical device and scanning of the target device .
- the backlight can be designed, for example, according to claim 6, wherein a flat film can be used as the light source, which glows when a voltage is applied.
- the target image is configured as an LCD display
- the target images can be changed without changing a corresponding target, and moving images are also possible.
- the LCD display is expediently provided with a corresponding control unit which can be coupled to the control unit of the target device and / or a corresponding evaluation device in order to adjust the evaluation of the target device or the evaluation device to the respectively selected target image.
- the claims and parts of the description of this application directed to the target image are independent in nature, ie are not limited to the target device according to claim 1, but can also be used with target devices which operate according to other principles.
- An embodiment of the target device according to claim 8 is particularly advantageous, since interference voltages can be largely eliminated with the aid of the integrator, which significantly improves the accuracy of the result.
- the hold circuit then provides the result of the integration until it is picked up by downstream means for forming the difference between two signals and processed further. Any remaining interference voltages are further eliminated by forming the difference.
- the means for forming the difference can be, for example, an operational amplifier to which the signals to be differentiated are applied.
- an embodiment according to claim 9 is particularly advantageous.
- Claim 10 describes a particularly simple construction of the integrator, the integrator being combined with a sample / hold circuit.
- the processing of the PSD signals can be further improved and simplified by designing the target device according to claim 11.
- the target device is designed according to claim 12.
- the signal available at the RS 485 interface can now be further processed in various additional devices, for example in an evaluation device according to claim 13 or via an interface converter with a connected PC according to claim 14.
- Such additional devices are also coupled to the target device in such a way that not only the hits can be evaluated, but also various settings are possible on the target device, such as the setting of the backlight or a possible target image and the like.
- the additional device can be designed to be very versatile and enable the setting of numerous parameters and / or functions.
- a power supply unit can optionally be connected to the target device or a connected additional device, in which case the other device is then supplied with power via the connecting line.
- auxiliary units can be connected to the additional devices, for example a printer according to claim 16, in order to print out the results of the hits.
- a sound generator with amplifier and loudspeaker or other peripheral devices can also be connected in order to simulate the shooting noise or other effects that arise when live ammunition is fired.
- a design of the target device according to claim 18 is also particularly expedient, so that a hit display and hit evaluation is only possible if the associated shot detector also receives a shot check signal. This prevents a shooter from effectively firing at a target that is not assigned to his shooting range in a multiple arrangement of shooting ranges.
- Figure 1 shows a first system for simulated
- Figure 2 is a schematic block diagram of the
- FIG. 3 is a timing diagram of the
- Figure 5 shows another target device in a modified training
- Figure 6 Computer printout of a shooting protocol.
- FIG. 1 shows a system for simulated shooting.
- a weapon here for example a pistol, is equipped with a kit for simulated shooting.
- This contains a firing device 6 which can be inserted into the barrel 4 of the weapon 2 at the front end and which is triggered by a training cartridge 8 which is inserted in the cartridge chamber and / or barrel 4 of the weapon.
- the firing pin 12 strikes the practice cartridge 8 and triggers a trigger signal, which is preferably a pressure wave which propagates in air at the speed of sound and which activates a light transmitter 14 on the firing device 6.
- the light transmitter 14 preferably has a laser diode operating in the infrared range, which emits a shot signal to a target device 16.
- the target device 16 is formed by a housing 18 with a front opening in which a focusing screen 20 with a Fresnel lens 22 is arranged.
- a preferably interchangeable target image 24 is assigned to the focusing screen 20 and consists, for example, of a film that adheres to the focusing screen 20.
- the target image contains a carrier layer, for example made of acrylic glass 26, and an image 28 made of an applied dye.
- the transmission properties of the target image are such that the dye of the target image 28 and the carrier layer 26 have approximately the same degree of transmission for the shot signal in order to distort the shot signal while striking both a dye and the free matting. To prevent the disc or to enable a uniform evaluation of the hit.
- the target device further includes a backlight 30 with a lamp 32, the brightness of which is preferably adjustable and which illuminates the focusing screen 20 from the rear.
- the target device also includes optics 34 that direct the hit to a position sensitive light sensor 36 known as a PSD sensor. This is connected to a control unit 38, which has an interface 40 for connecting additional devices.
- An evaluation device 44 is connected to the target device 16 via a line 42 as an additional device, for example, which is designed as a computer and, based on an installed software, enables the received hit signals to be evaluated according to numerous criteria.
- the evaluation device contains on the front side 46 a first display device 48 with a ring of lights 50 which indicate the position of the hit in the target image (angle of the polar coordinates).
- a second display device 52 is designed numerically and shows the distance from the hit to the center of the disk (expediently as a weighted vector of the polar coordinates).
- a third display device 54 contains a display on which various parameters and / or functions of the evaluation device can be displayed, which can be selected and activated via an operating device 56, for example
- a power supply 58 can optionally be connected to the target device 16 or to the additional device 44, the other device being supplied with power via the connecting line 42.
- the system components described represent the minimum of a system for simulated shooting, which can be configured with numerous other auxiliary devices and additional functions.
- a shot detection device 60 which has a transmitter 62 arranged on the shot transmitter 6, which emits a shot detection signal that is bundled in a relatively narrow cone 64 of, for example, 14 ° and cooperates with a slave 66 that is located above or is preferably arranged below the firing device 6.
- the slave 66 is connected to the evaluation device 44 via a line 68, so that this only indicates and evaluates a hit when the shot-off device 60 also reports the exit of the shot at the same time. This prevents one and the same target device from being shot from a neighboring shooting range.
- the shot detection device 60 is designed in such a way that it does not activate adjacent shot detectors due to the relatively narrow cone angle and nevertheless enables shooting in different positions, such as lying, kneeling or standing shooting.
- the evaluation device 44 contains a further interface, which enables the connection of a printer 70 via a line 72, so that the set parameters and / or functions as well as the shooting result can be printed out, for example, in the form of a protocol according to FIG.
- FIGS. 2 and 3 show on the one hand the block diagram of the control unit 38 of the target device 16 and on the other hand the time diagram of the function of the control unit 38.
- the PSD sensor 36 contains four outputs y, y, x, x, the circuit structure being shown only on the basis of the output y for the sake of simplicity, since the circuit structure of the other outputs is analog.
- the output is first connected to an I / U converter 82 in order to convert the current signal into a voltage signal.
- the I / U converter 82 is connected via a coupling capacitor 84 to an amplifier 86, to which an integrator 90 is connected via a resistor 88, which is also designed as a sample / hold circuit.
- the integrator 90 contains an amplifier 92 and a capacitor 94 connected in parallel, over which in turn a switch 96 is connected in parallel. A further switch 98 is arranged at the input.
- the integrator 90 with the sample / hold circuit is followed by an A / D converter 100, that is to say an analog / digital converter, which retrieves the integrated signals from the four integrators 90 in sequence and converts them into a digital signal.
- a control circuit 102 which preferably contains a microprocessor, is connected on the one hand via lines 104, 106 to the switches 96, 98 and on the other hand to the A / D converter 100. Furthermore, a Schmitt trigger 108 is connected to the control circuit 102, which is connected via a line 110 is connected to the amplifiers 86 of the individual outputs of the PSD sensor and emits a start signal to the control circuit 102 when a shot signal appears.
- the signals obtained on the A / D converter 100 are evaluated in a hit evaluation and fed to the interface 40 (FIG. 1), via which it is passed on to an additional device for evaluation.
- the function of the control circuit is described in more detail below with reference to the time diagram in FIG. 3. If the PSD sensor 36 signals a hit signal S at time tO, the duration of which is approximately 40 ⁇ sec, then this is first converted to a voltage signal according to curve K1 on the I / U converter. delt.
- the Schmitt trigger activates the control circuit 102 according to the curve K2 at the time t1, whereupon the switch 96 is opened according to the curve K4 and the switch 98 of the integrator 90 is closed according to the curve K3.
- the integrator then integrates the voltage according to curve K5 using the formula:
- the integration process is ended at time t3, whereupon switch 98 opens.
- the integration result corresponds to the area Ay.
- the interference voltages 112 superimposed on the position signal U'y are practically integrated to zero by the integration process, since their mean value is formed.
- the accuracy of the result Py thus increases considerably.
- the integrator acts like a sample / hold circuit and makes the result Py available to the A / D converter 100 for fetching and converting up to the time t7.
- the process described runs in parallel for all four connections y, y, x, x of the PSD sensor 36, so that the four integrators or sample / hold circuits in the time from t3 to t7 give the A / D converter the integration results Offer Py, Py, Px, Px analog.
- the A / D converter 100 fetches the results one after the other and converts them into a digital signal. If, after the time t7, the integrators are reset by the switch 96 closing, the circuit is ready for a new procedure.
- control circuit forms, among other things, the difference between Px and Px and Py and Py, any integration errors f being finally eliminated according to the formula
- FIG. 4 shows a system for simulated shooting which is analogous to FIG. 1, the same parts being provided with the same reference numerals and the weapon 2, the target device 16, the power supply unit 58 and the shot-off device 60 being of identical design.
- there is no evaluation device 44 as an additional device but instead it is replaced by a PC 114, which is connected to the target device 16 via an interface converter 116 serving as an additional device.
- the interface converter is used to convert the signals from the RS 485 interface into an RS 232 interface, which is required to connect the PC 114.
- the shot canceling device 60 is preferably connected to the interface converter 116.
- the network device 58 can in turn be connected either to the target device 16 or to the interface converter 116.
- a printer 70 and / or a sound generator 76 or further additional devices can in turn be connected to the PC 114.
- the sound generator can also be integrated directly into the PC in the form of a sound card 118, so that only the amplifier 78 and the loudspeaker 80 have to be connected.
- the hit results can then be displayed on the screen 120 of the PC 114, the keyboard 122 being used to control the PC and to select the programs.
- the possibilities described in connection with the system according to FIG. 1 are also given in the system according to FIG. 4.
- FIG. 5 shows a further aiming device 16a, which is constructed essentially according to the aiming device 16 of FIG. 1, but the shooting does not take place directly on the focusing screen 20, but against a mirrored glass target 124, which is at an angle of 45 ° to the focusing screen 20 is inclined.
- the Glass pane is designed to be reflective for the type of shot signal, but otherwise translucent in order to make a target image 128 arranged on wall 126 effective for the shooter.
- This design has the advantage that the target image cannot interfere with the beam path of the shot signal and, moreover, the simplest means can be used for the shot image, such as printed paper, cardboard or another base.
- the picture can also be designed not only in one color, but also in multiple colors.
- the target images are easily interchangeable.
- the target device 16a consists of an LCD display which can show both still and moving images.
- the desired image is automatically displayed or set according to the user setting on the evaluation or display device or the PC.
- the display device or the PC transmits a code via an interface which can be forwarded to an optional LCD display driver card 130 which is connected to the control unit in the target device and which generates the desired image.
- the LCD display is used as the target image, the image can be automatically adjusted to the surrounding distance without changing the image, depending on the LCD.
- black and white pictures with background lighting or colored pictures can be shown, whereby a simulation with moving pictures is also possible.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH263996 | 1996-10-25 | ||
CH263996 | 1996-10-25 | ||
PCT/CH1997/000399 WO1998019132A1 (fr) | 1996-10-25 | 1997-10-23 | Appareil constituant une cible pour installation de simulation de tir |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0932813A1 true EP0932813A1 (fr) | 1999-08-04 |
Family
ID=4238286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97943720A Withdrawn EP0932813A1 (fr) | 1996-10-25 | 1997-10-23 | Appareil constituant une cible pour installation de simulation de tir |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0932813A1 (fr) |
WO (1) | WO1998019132A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105973073A (zh) * | 2016-05-25 | 2016-09-28 | 北京神州凯业系统工程技术研究中心 | 自动报靶装置 |
CN109297362A (zh) * | 2018-11-27 | 2019-02-01 | 福建泉城特种装备科技有限公司 | 一种射击训练用电子记分系统 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104534933A (zh) * | 2014-12-25 | 2015-04-22 | 中国人民解放军总参谋部第六十研究所 | 一种激光射击用菲涅尔透镜靶装置 |
CN105629253B (zh) * | 2015-12-25 | 2017-09-29 | 北京航天控制仪器研究所 | 一种靶场末区多方式融合落点测量系统 |
CN113606989B (zh) * | 2021-07-14 | 2023-03-31 | 中国人民解放军总参谋部第六十研究所 | 一种菲涅尔式激光发射镜筒和激光发射器 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5129595B2 (fr) * | 1972-08-03 | 1976-08-26 | ||
US4195422A (en) * | 1976-12-20 | 1980-04-01 | Laspo Ag | System for simulating weapon firing |
US4164081A (en) * | 1977-11-10 | 1979-08-14 | The United States Of America As Represented By The Secretary Of The Navy | Remote target hit monitoring system |
-
1997
- 1997-10-23 WO PCT/CH1997/000399 patent/WO1998019132A1/fr not_active Application Discontinuation
- 1997-10-23 EP EP97943720A patent/EP0932813A1/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO9819132A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105973073A (zh) * | 2016-05-25 | 2016-09-28 | 北京神州凯业系统工程技术研究中心 | 自动报靶装置 |
CN109297362A (zh) * | 2018-11-27 | 2019-02-01 | 福建泉城特种装备科技有限公司 | 一种射击训练用电子记分系统 |
Also Published As
Publication number | Publication date |
---|---|
WO1998019132A1 (fr) | 1998-05-07 |
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