EP2356397A1 - Procede de simulation de tirs et simulateur de tirs apte a mettre en oeuvre le procede - Google Patents
Procede de simulation de tirs et simulateur de tirs apte a mettre en oeuvre le procedeInfo
- Publication number
- EP2356397A1 EP2356397A1 EP09795475A EP09795475A EP2356397A1 EP 2356397 A1 EP2356397 A1 EP 2356397A1 EP 09795475 A EP09795475 A EP 09795475A EP 09795475 A EP09795475 A EP 09795475A EP 2356397 A1 EP2356397 A1 EP 2356397A1
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- European Patent Office
- Prior art keywords
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- duration
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- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004088 simulation Methods 0.000 claims abstract description 39
- 238000010304 firing Methods 0.000 claims description 102
- 230000002457 bidirectional effect Effects 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000012795 verification Methods 0.000 claims description 21
- 230000004044 response Effects 0.000 claims description 11
- 238000006386 neutralization reaction Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 3
- 238000012549 training Methods 0.000 abstract description 12
- 230000007175 bidirectional communication Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006854 communication Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 230000006399 behavior Effects 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 231100000518 lethal Toxicity 0.000 description 2
- 230000001665 lethal effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
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- 231100000225 lethality Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
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- 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
- F41G3/2683—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 with reflection of the beam on the target back to the weapon
- F41G3/2688—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 with reflection of the beam on the target back to the weapon using target range measurement, e.g. with a laser rangefinder
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- 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
- F41G3/265—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 with means for selecting or varying the shape or the direction of the emitted beam
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- 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
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- 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
- F41G3/2666—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 with means for selecting or varying PRF or time coding of the emitted beam
Definitions
- the subject of the present invention is a method of simulating firing with a simulation weapon towards a target, during a simulation of combat training.
- the present invention finds a particularly advantageous, but not exclusive, application in the field of simulation for the technical and tactical training of crews in the context of field exercises in regiment or combat training center.
- the invention also relates to a shot simulator comprising means capable of implementing the simulation method of the invention.
- a shot simulator comprising means capable of implementing the simulation method of the invention.
- State of the art Currently, during a technical or tactical combat training in the context of regiments or combat training centers, exercise players such as land vehicles, aircraft and pedestrian players are equipped with combat weapons such as missiles, rockets or small arms, associated with a firing simulator.
- the shooting simulator is intended to simulate a real shot of the combat weapon by laser technology.
- the actors of the exercise are also provided with a target device intended to equip them with a target function allowing them to play a role of target, during the simulation of the training.
- a target device intended to equip them with a target function allowing them to play a role of target, during the simulation of the training.
- two types of shooting simulators are used.
- One of the firing simulator types is a bidirectional simulator. It comprises an optical unit equipped with a non-dangerous low power laser transceiver secured to the combat weapon and its aiming system.
- This type of firing simulator is associated with a bidirectional target device fitted to certain combat actors.
- This target device comprises a computer provided with an interface for programming the target, a beacon equipped with an optical detection device for receiving the laser shot from the firing simulator, and an optical retroreflector device. reflecting the laser shot at the receiver of the optical block of the firing simulator. An alarm is triggered when the detector has received a laser shot.
- the bidirectional laser simulator equips for example missiles or weapons carried by tanks or helicopters.
- the other type of firing simulator is a unidirectional simulator. It includes an optical unit equipped with a non-dangerous low-power laser transmitter attached to the combat weapon and its aiming system.
- This type of firing simulator is associated with a unidirectional target device fitted to other combat actors such as infantrymen.
- This target device comprises a computer provided with an interface for programming the target, a beacon equipped with an optical detection device for receiving the laser shot from the firing simulator and an alarm triggered when the detector has received a shot. laser.
- the unidirectional laser simulator equips individual portable weapons worn by soldiers such as infantrymen or commandos.
- a bidirectional firing simulator carried by a laser-emitting gun simulating the firing of an explosive ordnance will not be detected by any infantryman equipped with the unidirectional target device, located in the explosive area of the ammunition.
- the purpose of the invention is precisely to make the result of the combat training simulation virtually coincide with the result of a real combat by overcoming the disadvantages of the techniques described above.
- the invention implements a firing simulator capable of successively emitting laser radiation simulating firing according to the unidirectional and bidirectional communication protocol or vice versa. This emission is made according to the type of weapon to simulate.
- the invention thus allows all combat actors located in an impact zone of the simulated shot to detect it and to suffer or not the effects.
- the subject of the invention is a method for simulating shots with a simulation weapon in which
- the simulation weapon is pointed at a target equipped with a target device; a target presence verification message is fired with the simulation weapon towards said target;
- first type on the target with the simulation weapon the first type of fire having a firing message, characterized in that a firing of a second type is carried out after a date of firing.
- impact of a ballistic fire occurring after a ballistic duration so as to simulate at least one point of impact in an impact perimeter determined according to the characteristics of the projectile.
- the invention is also characterized in that the firing of the second type is repeated periodically after the impact date during a period of neutralization of additional targets.
- the duration of neutralization of additional targets is determined according to a type of the simulation weapon.
- the invention is also characterized in that the impact perimeter is determined before the firing of the first type is performed.
- the invention is also characterized in that
- the simulation weapon is placed in order to cover all the impact perimeter.
- the invention is also characterized in that
- the duration of neutralization corresponds to the time necessary to scan the perimeter of impact.
- the invention is also characterized in that
- the verification message includes a search phase with a two-dimensional scan, namely a horizontal scan and a vertical scan.
- the invention is also characterized in that
- the second type of fire occurs after a latency period succeeding the verification message or the firing message.
- the invention is also characterized in that the target device transmits, in response to the verification message, a presence message,
- the firing of the second type being directed to a corresponding impact location.
- the invention is also characterized in that the firing of the first type is bidirectional.
- the invention is also characterized in that the firing of the second type is unidirectional.
- the invention is also characterized in that
- the firing of the second type comprises a transmission, twice contiguous in time, of a symbolic word of data followed by a period of silence whose duration is equal to the duration of the two contiguous words
- each word being formed of symbols of short duration separated from each other by an inter-symbol duration longer than the short duration.
- the invention is also characterized in that one or more additional symbols are emitted during the period of silence at dates separated from the end of the second word by a duration equal to an odd multiple of the half-intersymbol time.
- each word is formed of fourteen symbols framed by a start symbol and a stop symbol.
- the invention is also characterized in that
- the invention is also characterized in that
- the fire message includes a transmission twice in time, a symbolic synchronization word
- each word being formed of symbols of short duration separated from each other by an inter-symbol duration longer than the short duration.
- the invention is also characterized in that - the first synchronization word is formed of nine symbols, the second synchronization word is formed of ten symbols.
- each symbolic word of data is formed of eight symbols flanked by a separation bit.
- the invention is also characterized in that the inter symbol duration is more than 1000 times greater than the short duration.
- the invention is also characterized in that the inter-symbol duration is about 128 ⁇ s and the duration of a symbol is at least 50 ns.
- the invention is also characterized in that the position of the additional symbols is about 320 ⁇ s, or about 448 ⁇ s or about 576 ⁇ s of the second stop symbol of the second word.
- the invention is also characterized in that the symbol is a laser pulse.
- the subject of the invention is also a simulator comprising means capable of implementing the simulation method of the invention.
- FIGS. 1a, 1b and 1c schematize a representation of a simulation of shots, during a training in combat, according to the invention.
- FIG. 2 shows a schematic representation of the implementation of the components of the firing simulator according to the invention.
- Figure 3 shows an illustration of means implementing the method of the invention.
- FIGS. 4 and 5 show an example of a unidirectional communication protocol between a firing simulator and a unidirectional target device, according to the invention.
- Figures 6, 7 and 8 show an example of a protocol of bidirectional communication between a firing simulator and a bidirectional target device, according to the invention.
- Figures 9a, 9b and 9c illustrate the result of the interpretation of a unidirectional target device, when receiving data transmitted according to the unidirectional communication protocol.
- FIGS. 1a, 1b and 1c show a representation of a combat simulation of several combat actors on a training ground.
- the actors in combat are composed of a tank 10, a helicopter 11 and three actors 12, 13 and 14 pedestrians such as infantrymen. All these combat actors are provided with a simulator 20 for firing a combat weapon as shown in Figure 2 and a target device (not shown).
- the shooter in the example of FIG. 1a, is the tank 10 armed with a barrel 15 whose aiming system is associated with the simulator 20 of firing a shell 16.
- the aiming system of the barrel 15 is associated to the axis of a laser rangefinder 21 of the firing simulator 20 and is pointed towards a target materialized by the pedestrian combat actor 13 situated at a horizontal distance from the tank 10.
- laser rangefinder 21 simulator As represented in FIG. laser rangefinder 21 simulator
- the 20 shots comprises a laser emitter 22, for example a laser diode, for producing low power laser pulses in the form of a light beam with a repetition frequency of a few kHz.
- the laser rangefinder 21 also includes a laser receiver 23, such as a light-sensitive diode.
- the firing simulator comprises a device 24 for scanning a laser beam emitted by the transmitter 22.
- the firing simulator 20 is coupled to a control circuit 30 capable of triggering the emission of the laser beam by the transmitter 22, the activation of the scanning device 24 and the processing of the signals received by the receiver 23.
- the firing simulator has a graphical human machine interface.
- This interface includes various descriptive titles whose provision guides the user in entering programming information of the firing function of the firing simulator.
- This interface 25 allows the user to configure and control the simulator 20 of tank fire 10.
- the control circuit 30 comprises a microprocessor 31, a memory 32 of shot simulation program and a memory 33 of data interconnected by an internal bus 34.
- actions are attributed to devices or programs, that is to say that these actions are executed by a microprocessor of this apparatus or of the apparatus comprising the program, said microprocessor then being controlled by instruction codes stored in a memory of the device. These instruction codes make it possible to implement the means of the apparatus and thus to carry out the action undertaken.
- the firing program memory 32 is divided into several zones, each zone corresponding to a function or mode of operation of the program of the firing simulator.
- a zone 35 includes instruction codes for processing the information entered on the interface 25 and activating the firing function of the firing simulator as a result of user validation of that input.
- a zone 36 includes instruction codes for simulating a trajectory T of a ballistic behavior of the simulated munition, which is here the shell 16, depending on the type of ammunition.
- a zone 37 includes instruction codes for activating the scanning device 24, when transmitting a firing of a first type comprising a verification message sent by the transmitter 22.
- a zone 38 comprises instruction codes to determine an impact location and a ballistic duration based on the data received in response to the verification message.
- a zone 39 includes instruction codes for determining an impact perimeter around the impact location depending on the type of munition to be simulated.
- Area 40 includes instruction codes for determining a combination of laser shot transmissions according to a unidirectional communication protocol, as shown in FIGS. 4 and 5, and a bidirectional communication protocol, as shown in FIGS. 8. The sequence combination of laser shots is determined based on the data received in response to the verification message.
- a zone 41 includes instruction codes to detach the axis of sight of the weapon to scan the perimeter of impact.
- An area 42 includes instruction codes to determine the number of laser fire emissions based on the type of ammunition.
- the control circuit 30 determines the parameters of the shot in order to simulate in time a ballistic behavior of the shell 16.
- the parameters of the shot can be in particular the temperature of the powder, the aerological conditions, the winds, the movements of the shooter at the moment of firing and during the simulation of the trajectory T of the projectile 16 etc.
- the control circuit 30 determines the imaginary trajectory T representative of the trajectory of the simulated shell 16.
- This trajectory T is developed in real time from, in particular, the gun pointing parameters and the ballistic behavior of the simulated shell 16.
- the fictitious trajectory T of the simulated shell 16 is known at each instant (ti) by tables or by calculation. The simulated trajectory T thus allows the control circuit 30 to create a relationship between a distance traveled by the munition and the time ti.
- the circuit 30 simultaneously controls the emission of a firing of a first type simulating the shell 16 and the activation of the scanning device 44.
- the firing of the first type comprises at this moment a bi-directional target device presence verification message on the trajectory T.
- the activation of the scanning device 44 makes it possible to carry out a displacement of the emitted laser beam along the trajectory T so as to explore a certain field to observe the area where the pedestrian actor is. This scan represents a simulation in time of the laser shot to represent the ballistic behavior of the simulated shell 16.
- the displacement of the laser beam along the path T made by the scanning device 44 is preferably a scanning in two dimensions, namely a scan along a horizontal axis or "bearing” and a scan along a vertical axis or "site".
- the control circuit 30 deactivates the scanning device 24.
- the bidirectional target device equipping the helicopter 11, located in the scanning field, detects the presence verification laser beam.
- a reflector of this bidirectional target device re-emits the received laser beam to the simulator 20.
- the control circuit 30 measures the time offset corresponding to the distance away from the helicopter 11 of the shooter 10. The measurement of this time shift makes it possible to determine a place of impact 17 of the simulated shell 16. This time difference corresponds to the ballistic duration.
- the control circuit 30 determines the characteristics of the projectile to be simulated, here the shell 16. These characteristics allow the circuit 30 to define dimensions of an impact perimeter 18 surrounding the impact location 17. Characteristics may include a scatter zone of the impact points, the target altitude and a blast effect corresponding to a blast wave created by the detonation of the shell. This zone of dispersion of the points of impact can be generated by a cluster bomb or a cluster bomb.
- the impact perimeter corresponds to the place of impact aligned with the axis of aim of the weapon to be simulated before firing. laser.
- the circuit 30 controls the emission of the firing of the first type, this time comprising a firing message towards the helicopter 11.
- This firing message is issued according to a communication protocol. bidirectional illustrated in Figures 6-8.
- the circuit 30 controls the emission of shots of the second type. For each transmission, the circuit 30 controls the misalignment of the axis of sight of the gun to cover the entire perimeter 18 of impact.
- the firing of the second type is issued according to a unidirectional communication protocol illustrated by FIGS. 4 and 5. This firing of the second type is reiterated during a period of neutralization of additional targets. This duration of neutralization corresponds to the time necessary for the simulator to scan the perimeter of impact.
- the misalignment of the gun is done according to a previously defined distribution of the points of impact.
- the helicopter not only will the helicopter be declared as touched but also all the other actors, such as the actor 12, located in the impact environment of the fired projectile.
- the invention thus makes it possible to match the result of the simulation in combat training to reality.
- the actors in combat are composed of the shooter tank, a second tank 9, the pedestrian actor 13 considered as the target target and two other actors 12 and 14 pedestrians such as infantrymen.
- a reflector of this bidirectional target device re-emits the received laser beam to the simulator 20.
- the control circuit 30 measures the time offset corresponding to the distance of distance of the second tank 9 between the transmission of the verification message and the reception of the response to this message. The measurement of this time shift makes it possible to determine an impact location 17 of the simulated shell 16.
- the control circuit 30 determines the dimensions of the impact perimeter 18 surrounding the impact location, depending on the characteristics of the projectile. Then, the circuit 30 controls the emission of the firing of the first type comprising a firing message towards the second tank 9. In order to simulate impact points 19 in the perimeter 18 of impact, the circuit 30 controls the emission firing of the second type by offending at each transmission the laser emission axis of the optical block (20).
- the actors in combat are composed of the shooter tank, the pedestrian actor 13 considered as the target target and the pedestrian actor 14.
- the simulator 20 receives no response to the presence check message during the scan time of the trajectory T.
- no actor in combat equipped with the bidirectional target device is in the scanning field.
- the firing of the second type is carried out after an impact date of a ballistic fire occurring at the end of the sweep of the trajectory T.
- This impact date coincides with the impact location 17 corresponding to the point user-targeted impact before the simulation.
- This impact location corresponds to the position of the target target which is here the pedestrian actor 13.
- the control circuit 30 determines the dimensions of the impact perimeter surrounding the impact location, depending on the characteristics of the projectile. Then, the circuit 30 controls the emission of shots of the second type by offending at each transmission the axis of sight of the gun.
- the shooting of the first type with a fire message is not activated in this case. Nevertheless, the activation of the emission of the firing message has no effect on the result of the simulation because no bidirectional target device is present on the trajectory T of the projectile 16 to receive it.
- FIG. 3 shows an illustration of means implementing the method of the invention.
- FIG. 3 shows a preliminary step in which the firing function of the simulator 20 is activated according to the data entered on the graphical interface.
- the control circuit 30 extracts from the data memory 33 attributes associated with this projectile. These attributes include, the maximum range of this projectile, the number of ammunition fired continuously.
- the control circuit 30 calculates a distance separating the shooter from the target.
- the control circuit 30 simulates a trajectory T of a ballistic behavior of the simulated munition.
- the laser transmitter 22 emits a laser shot of a first type comprising a verification message simulating an ammunition of the simulation weapon.
- This verification message comprises a set of laser pulses making it possible to search for any bidirectional targets present along the simulated trajectory T.
- the laser shot is moved along the path T to explore a certain field to detect the possible presence of target.
- the firing simulator 20 is in the listening phase of a signal transmitted by a reflector of a bidirectional laser target device in response to the verification message (search).
- This listening phase is triggered by the control circuit 13 by launching a countdown counter at a step 106, the duration of which is almost equal to a duration of a laser shot.
- This duration of a laser shot previously defined, is generally of the order of tens to hundreds of milliseconds.
- the outcome of the listening phase can be obtained either when the countdown timer reaches zero or when the receiver 23 of the simulator receives a response.
- the simulator 20 receives a presence signaling message from a target in response to the presence check message issued, during the duration of the listening phase.
- the control circuit 30 stops the countdown timer and deactivates the scanning device.
- the control circuit 30 determines the impact location of the projectile by measuring the distance of distance between the shooter and the target.
- the control circuit 30 determines the characteristics of the projectile to be simulated in order to calculate the dimensions of the impact perimeter 18 surrounding the impact location 17.
- the firing simulator fires the first type firing with a firing message towards the target provided with the bidirectional target device.
- the firing simulator 20 emits firing of the second type by detaching at each transmission the laser emission axis of the simulator.
- the control circuit 30 considers, at a step 113, that the location of impact corresponds to the point of impact. targeted by the shooter.
- the control circuit 30 determines the dimensions of the impact perimeter 18 surrounding this location of impact, depending on the characteristics of the projectile.
- the transmitter 22 emits firing of the second type by detaching at each transmission the laser emission axis of the simulator to cover the perimeter 18 of impact.
- the wavelength of the laser radiation emitted by the firing function of the simulator is between 880 nanometers and 920 nanometers.
- This laser emission comprises symbols having a duration preferably greater than or equal to approximately 50 nanoseconds. In a preferred embodiment, the duration of a symbol is substantially equal to 110 nanoseconds.
- a symbol is a laser pulse. The transmission of laser data, via this transmission, is unidirectional and asynchronous between the shooter and its target.
- the maximum power level of the laser pulses emitted by the shooter is determined in accordance with the eye safety standard of laser devices.
- the transmission of the data relating to the firing carried out, from the firer to the target, is effected by modulating the laser symbol train in all or nothing.
- This modulation is preferably a pulse code modulation type binary modulation known as the Anglo-Saxon term of Ince Coded Modulation (PCM).
- PCM Anglo-Saxon term of Ince Coded Modulation
- the intersymbol duration is equal to about 128 ⁇ s with a tolerance of ⁇ 5 ⁇ s.
- the laser data transmission is done according to the unidirectional or bidirectional communication protocol.
- a communication protocol is a set of rules and procedures defining the type of coding, the speed used during the communication, and how to establish and terminate the connection.
- FIGS. 4 and 5 show an example of a unidirectional communication protocol between a firing simulator and a unidirectional target device, according to the invention.
- the firing simulator issues a firing 50 of second type.
- This firing 50 of the second type comprises 63 successive bits organized in the following manner: a first word of 14 data symbols flanked by a starting symbol 52 and a stopping symbol 53;
- This silence period consists of 31 consecutive bits forced to 0, ie 32 consecutive inter-symbol durations of 128 ⁇ s.
- the start and stop symbols 52, 53, 55, 56 are synchronization bits.
- the word of 14 symbols includes data relating to the identification of the gunman, the type of weapon or ammunition used or the family of the weapon used (caliber) and in some cases provides information on the sanction to display. by the target.
- the total duration of a firing of the second type issued at a fixed period of 128 ⁇ s is 8,064 ms from the first laser symbol issued.
- At least one additional symbol 59 is emitted during the period 57 of silence of the firing 50 of the second type.
- This additional symbol 59 is issued at a duration of the symbol 56 end of the second 54 word equal to an odd multiple of the half inter-symbol duration.
- This additional symbol 59 is a laser pulse allowing the target to display a sanction of the type taken together.
- the set-to-part symbol may be 320 ⁇ s after the stop sign 56 of the second word, 448 ⁇ s after the stop symbol 56 of the second bit word or 556 ⁇ s after the symbol 56 stopping the second word.
- start symbols 52 of the first word and the stop word 56 of the second word as well as the additional symbol 59 are transmitted at higher energy levels than the other symbols transmitted.
- start symbols 52 of the first word, stop 56 of the second word and the additional symbol 59 are transmitted at energy levels approximately 2 times higher than those of the other symbols transmitted.
- the transmitter emits a firing sequence 58.
- This sequence of shots includes identical and consecutive second type shots.
- m is between one and six.
- the firing simulator emits a firing sequence comprising 3 identical and consecutive shots of the second type.
- the duration of a firing sequence is at most 50 milliseconds.
- the simulation of a shot is translated by the laser emission of n sequences of successive shots.
- Each firing sequence is issued at the impact location of each simulated munition.
- the sequence of shots of fact to the rhythm of the shots of the n shots of the weapon.
- the transmitter 21 continuously emits spatially distributed shot sequences to describe a rectangular area of lethality.
- the spatial dimensions of this area are a function of the type of simulated munition, and are metrically constant regardless of the distance between the shooter and the target.
- the sequences of 50 ms can not be respected any more and the firing of second type are transmitted consecutively and without interruption during all the scanning of the zone of lethal coverage.
- Figures 9a, 9b and 9c illustrate the interpretations made by the calculator of the target when it receives a firing sequence.
- the target receives the high energy symbols, it can interpret the received data and report being hit as shown in Figure 9a.
- the target calculator interprets the data received and declares itself taken by fire.
- the shot is interpreted as missed because it is not detected by the target.
- FIGS. 6-8 show an example of bidirectional communication protocol between a firing simulator and a bidirectional target device, according to the invention.
- the firing simulator transmits a message 60 of shots of a firing of the first type.
- This shot message has 84 symbols including 55 standard symbols and 29 extension symbols.
- the symbols of the shot message 60 are transmitted successively and organized from the illustrated in Figure 6.
- the shot message 60 comprises a synchronization header 61, as illustrated in FIG. 7.
- This synchronization header 61 has 9 consecutive symbols.
- This header 61 is followed by five bytes 63. These five bytes 63 are followed by a new synchronization header 62.
- This synchronization header 62 comprises ten consecutively transmitted symbols.
- This synchronization header 62 is followed by two extension bytes 64.
- the bytes representing the useful data relating to the shot are framed by periods of silence. These periods of silence correspond to bits called "0" of separation.
- the bytes of the five standard bytes 63 may include in particular the following data:
- the bytes of the two extension bytes 64 may include in particular the following data:
- Table 2 The total duration of a message 60 of shots issued at a fixed period of 128 ⁇ s is 10.624 ms from the first laser symbol transmitted.
- the transmitter emits a firing sequence.
- This sequence of shots includes 60 identical and consecutive shots.
- m is between 1 and 28.
- the total duration of the emission of a firing message shot sequence is 300.928 ms for a fixed inter-symbol duration of 128 ⁇ s. data transmission, including
- the number of shots in the burst is included in the information coded in the message 60 shots. In a preferred embodiment, this number of strokes is limited to 15.
- control circuit 30 creates shot messages each having a number of shots limited to 15. The circuit 30 thus successively breaks down the simulated burst into messages 60. separate shots each with not more than 15 shots fired.
- the firing of the first type occurs after a latency period succeeding the verification message or the firing message.
- This latency period is a latency time without laser emission. It is greater than five milliseconds.
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- Radar, Positioning & Navigation (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0857956A FR2938961B1 (fr) | 2008-11-24 | 2008-11-24 | Procede de simulation de tirs et simulateur de tirs apte a mettre en oeuvre le procede |
PCT/FR2009/052233 WO2010058135A1 (fr) | 2008-11-24 | 2009-11-20 | Procede de simulation de tirs et simulateur de tirs apte a mettre en oeuvre le procede |
Publications (2)
Publication Number | Publication Date |
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EP2356397A1 true EP2356397A1 (fr) | 2011-08-17 |
EP2356397B1 EP2356397B1 (fr) | 2018-01-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP09795475.4A Active EP2356397B1 (fr) | 2008-11-24 | 2009-11-20 | Procédé de simulation de tirs et simulateur de tirs apte à mettre en oeuvre le procédé |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2356397B1 (fr) |
FR (1) | FR2938961B1 (fr) |
WO (1) | WO2010058135A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012002856A1 (fr) * | 2010-06-30 | 2012-01-05 | Saab Ab | Système de cible sans fil |
PL2791612T3 (pl) * | 2011-12-13 | 2021-04-19 | Saab Ab | Symulator strzelania z broni i celu oraz jego sposoby |
CN107339908A (zh) * | 2017-06-26 | 2017-11-10 | 北京盈想东方科技股份有限公司 | 一种机枪火力点激光模拟器 |
CN110441125B (zh) * | 2019-07-15 | 2020-11-13 | 武汉大学 | 利用线状脉冲激光模拟弹道冲击并实时监测的装置及方法 |
FR3110226A1 (fr) | 2020-05-18 | 2021-11-19 | Gdi Simulation | Simulateur de tir de combat vidéo et procédé de simulation de tir associé |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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SE392644B (sv) * | 1973-11-19 | 1977-04-04 | Saab Scania Ab | Forfarande och anordning for att vid tillempningsovningar med simulerad eldgivning emot ett flygande skjutmal vid en luftvernstropp utfora en kvantitativ summakontroll av eldforberedelser, malfoljning och ... |
SE412959B (sv) * | 1978-03-02 | 1980-03-24 | Saab Scania Ab | Sett att bestemma leget for ett antal foremal samt system for utforande av settet |
SE425819B (sv) * | 1978-03-02 | 1982-11-08 | Saab Scania Ab | Forfaringssett och anordning for ovningsskjutning |
SE418909B (sv) * | 1978-03-02 | 1981-06-29 | Saab Scania Ab | Sett och anleggning for att medelst modulerad optisk stralning overfora information till foremal |
JP2000218037A (ja) * | 1999-02-02 | 2000-08-08 | Sega Enterp Ltd | ビデオ画面の指示位置検出方法及び装置 |
EP1696198B1 (fr) * | 2005-02-28 | 2014-07-16 | Saab Ab | Procédé et système de simulation de feu |
-
2008
- 2008-11-24 FR FR0857956A patent/FR2938961B1/fr not_active Expired - Fee Related
-
2009
- 2009-11-20 EP EP09795475.4A patent/EP2356397B1/fr active Active
- 2009-11-20 WO PCT/FR2009/052233 patent/WO2010058135A1/fr active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2010058135A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2356397B1 (fr) | 2018-01-10 |
FR2938961A1 (fr) | 2010-05-28 |
FR2938961B1 (fr) | 2017-08-11 |
WO2010058135A1 (fr) | 2010-05-27 |
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