EP0252821B1 - Transmission process and system for an initiation order to an apparatus aboard an engine - Google Patents

Transmission process and system for an initiation order to an apparatus aboard an engine Download PDF

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Publication number
EP0252821B1
EP0252821B1 EP87401547A EP87401547A EP0252821B1 EP 0252821 B1 EP0252821 B1 EP 0252821B1 EP 87401547 A EP87401547 A EP 87401547A EP 87401547 A EP87401547 A EP 87401547A EP 0252821 B1 EP0252821 B1 EP 0252821B1
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EP
European Patent Office
Prior art keywords
engine
ignition
control wire
time
pass
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Expired
Application number
EP87401547A
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German (de)
French (fr)
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EP0252821A1 (en
Inventor
Jacques Esterlin
Guy Le Parquier
Jean-Pierre Roux
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Thomson Brandt Armements SA
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Thomson Brandt Armements SA
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Publication of EP0252821A1 publication Critical patent/EP0252821A1/en
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Publication of EP0252821B1 publication Critical patent/EP0252821B1/en
Expired legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C17/00—Fuze-setting apparatus
    • F42C17/04—Fuze-setting apparatus for electric fuzes

Definitions

  • the invention relates to devices, for example military charges, placed in devices such as rockets, and the starting of which must take place during the flight of the device.
  • devices for example military charges
  • These devices or rockets can be launched from fixed or mobile firing stations, and in particular from a rocket launcher.
  • Certain military charges such as arrow charges, must be fired before the missile arrives at the target. Indeed, these charges project one or more projectile bursts in a manner determined in advance. For these bursts to be effective, it is necessary for the charge to be started up precisely, that is to say at a determined distance from the target. For example, with regard to the arrowheads, the latter have a maximum efficiency when they are launched at about 500m from the target, the carrier can be launched at several thousand meters from the target.
  • the machine must have time information to be able to trigger the operation of the load at the desired time.
  • the ignition of the machine is transmitted to the latter via a control wire.
  • the data relating to the timing for the start of the military charge are transmitted to the latter by means of induction coils placed both on the carrier system and on the ammunition.
  • This order transmission system has a drawback which is the need to have a carrier system equipped with such coils to be able to transmit the timing orders, when it is a question of launching an ammunition whose military load must operate in flight course. There is therefore a problem of standardization of both the carrier system and the ammunition.
  • the object of the invention is to remedy this drawback by modifying the system and the method for transmitting timing orders concerning the starting of the military charge.
  • the object of the invention is a method and a system for transmitting temporal information concerning the starting of a device, placed in a machine launched from a carrier system, the firing control of the 'machine being transmitted to it from said carrier system by means of a firing control wire, characterized in that it consists in using said control wire to transmit said information to said device.
  • the device to initiate 1 is in a device 2, such as a rocket.
  • This device is launched from a carrier system 4, in this case a rocket launcher tube.
  • the timing signal for switching on the device 1 is made by means of a rangefinder 16 and a computer 3 of the carrier system.
  • the firing signal of the machine is supplied to the latter via a control wire 5, and this on the initiative of the shooter.
  • This signal for firing the machine can be formed by the front edge of a positive pulse; this signal is shown in Figure 2.
  • the signal communicated to the guided vehicle just before its ignition and which is the timing of the starting of the device, is also transmitted by the control wire 5, and not by coils placed both on the carrier system and both on the periphery of the machine. It should be noted that this timing information was previously transmitted in analog form. According to the present invention, it is planned to transmit this digital information, which makes it possible to use the on-board computer 3 when the carrier system is constituted by an aircraft, the craft then being a rocket.
  • the signal carrying the time information at the end of which the device must be triggered consists, with reference to FIG. 3, of pulses of the order of Mhz spaced apart by intervals of the order of 100 microseconds.
  • the bits have been represented with different pulse durations (for example, 100 s for the "zeros", 300lis for the "one” but this is only an exemplary embodiment).
  • a high-pass filter 6 is used which allows the frequencies of the pulses to pass.
  • the output of this filter is applied to a memory 7 which stores the successive bits constituting the time information.
  • the control wire 5 is also applied to the input of a low-pass filter 8 which allows the frequencies of the firing pulses of the machine and of switching on to pass.
  • the output of this wire is applied to a time delay 9 which is triggered when the edge is controlled by a positive pulse as shown in FIG. 2.
  • This signal is represented in FIG. 4 and can consist of a negative pulse of a duration at least as long as that of the transmission of the digital time information.
  • This signal is applied to a trigger circuit of the electronics 10 via a diode 11 allowing only negative voltages to pass.
  • This electronic start-up circuit sensitizes the memory 7 and the time delay 9, as well as a possible clock intended for the operation of the various circuits.
  • a machine or a rocket equipped with these few elements can obviously be adapted and therefore launched by a carrier system on which there is a rangefinder and electronic circuits capable of developing the digital signal constituting the time information, and applying it to the control wire 5.
  • the device is then a military charge, and in particular, an arrow charge. It is therefore possible to adapt to different support systems such as aircraft (planes or helicopters) or rocket launchers carried by an infantryman, ammunition or devices, guided or not, such as rockets comprising the elements which come from be described. This therefore multiplies the possibilities for adapting guided vehicles carrying military loads on different support systems.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Description

L'invention concerne les dispositifs, par exemple les charges militaires, placés dans des engins tels que des roquettes, et dont la mise en marche doit avoir lieu pendant le vol de l'engin. Ces engins ou roquettes peuvent être lancés à partir de stations de tir fixes ou mobiles, et notamment à partir d'un lance roquettes.The invention relates to devices, for example military charges, placed in devices such as rockets, and the starting of which must take place during the flight of the device. These devices or rockets can be launched from fixed or mobile firing stations, and in particular from a rocket launcher.

Certaines charges militaires, telles que des charges à flèches, doivent être mises à feu avant l'arrivée de l'engin sur la cible. En effet, ces charges projettent une ou plusieurs salves de projectile d'une manière déterminée à l'avance. Pour que ces salves soient efficaces, il est nécessaire que la mise en marche de la charge soit effectuée de manière précise, c'est-à-dire à une distance déterminée de la cible. Par exemple, en ce qui concerne les têtes à flèches, ces dernières ont une efficacité maximale lorsqu'elles sont lancées aux environs de 500m de la cible, l'engin porteur pouvant être lancé à plu- sieur milliers de mètres de la cible. Au départ, l'engin doit avoir une information de temps pour pouvoir déclencher au moment voulu le fonctionnement de la charge. Au départ, la mise à feu de l'engin est transmise à ce dernier par l'intermédiaire d'un fil de commande. Les données concernant le tempage pour la mise en marche de la charge militaire sont transmises à celle-ci par l'intermédiaire de bobines d'induction placées à la fois sur le système porteur, et sur la munition.Certain military charges, such as arrow charges, must be fired before the missile arrives at the target. Indeed, these charges project one or more projectile bursts in a manner determined in advance. For these bursts to be effective, it is necessary for the charge to be started up precisely, that is to say at a determined distance from the target. For example, with regard to the arrowheads, the latter have a maximum efficiency when they are launched at about 500m from the target, the carrier can be launched at several thousand meters from the target. At the start, the machine must have time information to be able to trigger the operation of the load at the desired time. At the start, the ignition of the machine is transmitted to the latter via a control wire. The data relating to the timing for the start of the military charge are transmitted to the latter by means of induction coils placed both on the carrier system and on the ammunition.

Les caractéristiques techniques mentionées par le préambule de la revendication 1, combinées entre elles, font donc partie de l'état décrit de la technique antérieure aussi bien que de la présente invention.The technical characteristics mentioned by the preamble of claim 1, combined together, therefore form part of the described state of the prior art as well as of the present invention.

Ce système de transmission d'ordre a un inconvénient qui est la nécessité de disposer d'un système porteur équipé de telles bobines pour pouvoir transmettre les ordres de tempage, lorsqu'il s'agit de lancer une munition dont la charge militaire doit fonctionner en cours de vol. Il y a donc là un problème de standardisation à la fois du système porteur et des munitions.This order transmission system has a drawback which is the need to have a carrier system equipped with such coils to be able to transmit the timing orders, when it is a question of launching an ammunition whose military load must operate in flight course. There is therefore a problem of standardization of both the carrier system and the ammunition.

L'invention a pour but de remédier à cet inconvénient en modifiant le système et le procédé de transmission des ordres de tempage concernant la mise en marche de la charge militaire.The object of the invention is to remedy this drawback by modifying the system and the method for transmitting timing orders concerning the starting of the military charge.

L'objet de l'invention est un procédé et un système de transmission d'informations temporelles concernant la mise en marche d'un dispositif, placé dans un engin lancé à partir d'un système porteur, la commande de mise à feu de l'engin lui étant transmise à partir dudit système porteur au moyen d'un fil de commande de mise à feu, caractérisé en ce qu'il consiste à utiliser ledit fil de commande pour transmettre audit dispositif lesdites informations.The object of the invention is a method and a system for transmitting temporal information concerning the starting of a device, placed in a machine launched from a carrier system, the firing control of the 'machine being transmitted to it from said carrier system by means of a firing control wire, characterized in that it consists in using said control wire to transmit said information to said device.

L'invention et ses caractéristiques seront mieux comprises à la lecture de la description qui suit, et qui est accompagnée des figures suivantes :

  • -Figure 1, un diagramme du système selon l'invention ;
  • -Figure 2,3,4 et 5, des formes de signaux intervenant dans le système selon l'invention.
The invention and its characteristics will be better understood on reading the description which follows, and which is accompanied by the following figures:
  • FIG. 1, a diagram of the system according to the invention;
  • -Figure 2,3,4 and 5, forms of signals involved in the system according to the invention.

En référence à la figure 1 le dispositif à initier 1, par exemple une charge militaire, se trouve dans un engin 2, tel qu'une roquette. Cet engin est lancé à partir d'un système porteur 4, en l'occurrence un tube lance roquette. sReferring to Figure 1 the device to initiate 1, for example a military charge, is in a device 2, such as a rocket. This device is launched from a carrier system 4, in this case a rocket launcher tube. s

Comme dans l'art antérieur, le signal de tempage de la mise en marche du dispositif 1 se fait par l'intermédiaire d'un télémètre 16 et d'un calculateur 3 du système porteur. Au moment du tir, le signal de mise à feu de l'engin est fourni à celui-ci par l'intermédiaire d'un fil de commande 5, et ceci à l'initiative du tireur. Ce signal de mise à feu de l'engin peut être constitué par le front avant d'une impulsion positive; ce signal est représenté à la figure 2.As in the prior art, the timing signal for switching on the device 1 is made by means of a rangefinder 16 and a computer 3 of the carrier system. At the time of the firing, the firing signal of the machine is supplied to the latter via a control wire 5, and this on the initiative of the shooter. This signal for firing the machine can be formed by the front edge of a positive pulse; this signal is shown in Figure 2.

Selon l'invention, le signal communiqué à l'engin guidé juste avant sa mise à feu, et qui est le tempage de la mise en marche du dispositif, est transmis également par le fil de commande 5, et non pas par des bobines placées à la fois sur le système porteur et à la fois à la périphérie de l'engin. Il est à noter que cette information de tempage était jusqu'alors transmise sous forme analogique. Selon la présente invention on prévoit de transmettre cette information numérique, ce qui permet d'utiliser le calculateur de bord 3 lorsque le système porteur est constitué par un aéronef, l'engin étant alors une roquette.According to the invention, the signal communicated to the guided vehicle just before its ignition, and which is the timing of the starting of the device, is also transmitted by the control wire 5, and not by coils placed both on the carrier system and both on the periphery of the machine. It should be noted that this timing information was previously transmitted in analog form. According to the present invention, it is planned to transmit this digital information, which makes it possible to use the on-board computer 3 when the carrier system is constituted by an aircraft, the craft then being a rocket.

Le signal portant l'information de temps au bout duquel le dispositif doit se déclencher, est constitué, en référence à la figure 3, par des impulsions de l'ordre du Mhz espacées d'intervalles de l'ordre de 100 microsecondes. Sur cette figure; on a représenté les bits avec des durées d'impulsion différentes (par exemple, 100 s pour les "zéros", 300lis pour les "un" mais ce n'est qu'un exemple de réalisation).The signal carrying the time information at the end of which the device must be triggered, consists, with reference to FIG. 3, of pulses of the order of Mhz spaced apart by intervals of the order of 100 microseconds. In this figure; the bits have been represented with different pulse durations (for example, 100 s for the "zeros", 300lis for the "one" but this is only an exemplary embodiment).

On utilise dans l'engin 2, un filtre passe-haut 6 qui laisse passer les fréquences des impulsions. La sortie de ce filtre est appliquée à une mémoire 7 qui stocke les bits successifs constituant l'information de temps. D'autre part, le fil de commande 5 est également appliqué à l'entrée d'un filtre passe-bas 8 qui laisse passer les fréquences des impulsions de mise à feu de l'engin et de mise en marche. La sortie de ce fil est appliquée à une temporisation 9 qui se déclenche à la commande du front d'une impulsion positive telle qu'elle est représentée à la figure 2.In the machine 2, a high-pass filter 6 is used which allows the frequencies of the pulses to pass. The output of this filter is applied to a memory 7 which stores the successive bits constituting the time information. On the other hand, the control wire 5 is also applied to the input of a low-pass filter 8 which allows the frequencies of the firing pulses of the machine and of switching on to pass. The output of this wire is applied to a time delay 9 which is triggered when the edge is controlled by a positive pulse as shown in FIG. 2.

On prévoit avant cette mise à feu de l'engin, un signal de sensibilisation et de mise en marche de l'électronique mise en oeuvre pour enregistrer l'information de temps. Ce signal est représenté à la figure 4 et peut être constitué d'une impulsion négative d'une durée au moins aussi longue que celle de la transmission de l'information numérique de temps. Ce signal est appliqué à un circuit de déclenchement de l'électronique 10 par l'intermédiaire d'une diode 11 ne laissant passer que les tensions négatives. Ce circuit de mise en marche de l'électronique sensibilise la mémoire 7 et la temporisation 9, ainsi qu'une éventuelle horloge destinée au fonctionnement des différents circuits.It is expected before this ignition of the machine, a signal of awareness and switching on of the electronics used to record the time information. This signal is represented in FIG. 4 and can consist of a negative pulse of a duration at least as long as that of the transmission of the digital time information. This signal is applied to a trigger circuit of the electronics 10 via a diode 11 allowing only negative voltages to pass. This electronic start-up circuit sensitizes the memory 7 and the time delay 9, as well as a possible clock intended for the operation of the various circuits.

Ces signaux devant être transmis par le même fil de commande 5, ils sont superposés, au moyen d'un circuit sommateur 15, de la manière correspondante à la représentation de la figure 5. En premier, apparaît l'impulsion négative de sensibilisation de l'électronique au moment T1. Cette sensibilisation dure jusqu'à l'instant T2, l'intervalle T1,T2 étant supérieur à l'intervalle nécessaire pour transmettre les bits constituant l'information de temps qui doit être transmise à la mémoire. A l'instant T2 le signal est de nouveau retourné à un potentiel de référence qui peut être nul. A un instant T3 ultérieur à l'instant T2 est transmise l'information positive correspondant à la mise à feu du propulseur de l'engin guidé. Les fréquences utilisées pour les impulsions de déclenchement de l'électronique et de mise à feu du propulseur sont du même ordre de grandeur et peuvent traverser le filtre passe-haut 8.These signals having to be transmitted by the same control wire 5, they are superimposed, by means of a summing circuit 15, in the corresponding manner in the representation of FIG. 5. First, the negative pulse of awareness of the electronics appears at time T1. This sensitization lasts until time T2, the interval T1, T2 being greater than the interval necessary to transmit the bits constituting the time information which must be transmitted to the memory. At time T2 the signal is again returned to a reference potential which can be zero. At an instant T3 subsequent to instant T2, the positive information corresponding to the firing of the propellant of the guided vehicle is transmitted. The frequencies used for the electronic triggering and firing pulses of the thruster are of the same order of magnitude and can pass through the high-pass filter 8.

De la même façon qu'on a disposé une diode 11 avant le circuit de mise en marche de l'électronique, on peut agir de même en utilisant une deuxième diode 12 avant l'entrée du filtre passe-haut ne laissant passer que les impulsions positives, et une troisième diode 13 sur le brin 14 destiné à la mise à feu du propulseur de l'engin guidé.In the same way that a diode 11 was placed before the electronic start-up circuit, we can do the same by using a second diode 12 before the input of the high-pass filter allowing only the pulses to pass. positive, and a third diode 13 on the strand 14 intended for firing the propellant of the guided vehicle.

On constate d'une part que les circuits et élément nécessaires à la transmission de l'information de temps, et qui était constitué de bobines ou d'enroulements et de circuits supplémentaires, sont supprimés. D'autre part, les éléments nouveaux et nécessaires à la mise en oeuvre de l'invention sont très peu nombreux puisqu'ils sont constitués de deux filtres et de trois diodes, la temporisation et la mémoire existant déjà dans les anciens circuits, même si ceux-ci fonctionnaient de manière analogique.It is noted on the one hand that the circuits and element necessary for the transmission of the time information, and which consisted of coils or windings and additional circuits, are eliminated. On the other hand, the new elements necessary for the implementation of the invention are very few since they consist of two filters and three diodes, the timer and the memory already existing in the old circuits, even if these worked analogically.

Un engin ou une roquette équipé de ces quelques éléments peut évidemment être adapté et donc lancé par un système porteur sur lequel il existe un télémètre et des circuits électroniques capables d'élaborer le signal numérique constituant l'information de temps, et de l'appliquer au fil de commande 5. Le dispositif est alors une charge militaire, et en particulier, une charge à flèches. Il est donc possible d'adapter sur différents systèmes supports tels que des aéronefs (avions ou hélicoptères) ou des lance-roquettes portés par un fantassin, des munitions ou engins, guidés ou non, tels que des roquettes comportant les éléments qui viennent d'être décrits. Ceci, multiplie donc les possibilités d'adaptation des engins guidés, porteurs de charge militaire sur différents systèmes supports.A machine or a rocket equipped with these few elements can obviously be adapted and therefore launched by a carrier system on which there is a rangefinder and electronic circuits capable of developing the digital signal constituting the time information, and applying it to the control wire 5. The device is then a military charge, and in particular, an arrow charge. It is therefore possible to adapt to different support systems such as aircraft (planes or helicopters) or rocket launchers carried by an infantryman, ammunition or devices, guided or not, such as rockets comprising the elements which come from be described. This therefore multiplies the possibilities for adapting guided vehicles carrying military loads on different support systems.

Claims (7)

1. A method for transmitting time-related information concerning the start-up of a device placed inside an engine (2) launched from a carrier system (1), the order of ignition of said engine being transmitted to it from said carrier system via an ignition control wire (5), characterized in that it consists in using said control wire for transmitting said information to said device.
2. A method according to claim 1, characterized in that said information is transmitted by means of a digital electric signal.
3. A method according to claim 2, in which the time-related informations concerning the start-up of the device precedes the information concerning the ignition of the engine, characterized in that the time-related information concerning the start-up of said device are constituted of a first negative pulse intended to trigger the start-up of the elements for receiving said informations, and of a digital pulse train defining the period of time at the end of which the device must be operated.
4. A method according to claim 3, characterized in that the information relative to the ignition of the engine is transmitted by means of a positive pulse.
5. A system for implementing the method according to claim 2 or 3, characterized in that it comprises a digital memory (7) connected to the control wire (5) via a high-pass filter (6) arranged for allowing only high frequencies to pass, a delay unit (9) for the military charge, a circuit (10) for enabling the electronic circuitry connected to said control wire (5) via a first diode (11), which is arranged for allowing only the negative pulses to pass in such a way as to control the memory and the delay unit, a low-pass filter (8) placed at the output end of the control wire parallel to the high-pass filter and to the end of which the diode (11) is connected, and a third diode (13) arranged for allowing only the positive pulses to pass and having its second terminal connected to a conductor (14) provided for igniting the engine.
6. A system according to claim 5, characterized in that the carrier system (1) comprises a computer connected to provide said time period informations intended for igniting the engine.
7. A system according to any one of the preceding claims, characterized in that the device is a military charge whose start-up is ignition.
EP87401547A 1986-07-08 1987-07-02 Transmission process and system for an initiation order to an apparatus aboard an engine Expired EP0252821B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8609892A FR2601484B1 (en) 1986-07-08 1986-07-08 METHOD AND SYSTEM FOR TRANSMITTING A START ORDER FOR A DEVICE ON BOARD ON A MACHINE
FR8609892 1986-07-08

Publications (2)

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EP0252821A1 EP0252821A1 (en) 1988-01-13
EP0252821B1 true EP0252821B1 (en) 1989-10-11

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EP87401547A Expired EP0252821B1 (en) 1986-07-08 1987-07-02 Transmission process and system for an initiation order to an apparatus aboard an engine

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EP (1) EP0252821B1 (en)
DE (1) DE3760769D1 (en)
ES (1) ES2011478B3 (en)
FR (1) FR2601484B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03501517A (en) * 1988-09-20 1991-04-04 ソシエテ　アノニム　デ　カブレリ　アンド　トレフィルリ　デ　コソネイ Weapon fuse readiness timing device especially for automatic firearms
FR2725087B1 (en) * 1994-09-27 1997-01-17 Alkan R & Cie SYSTEM FOR TRANSMITTING INFORMATION BETWEEN A WEAPON AND AMMUNITION
DE69616274T2 (en) * 1996-03-25 2002-07-11 Alkan, Valenton System for data transmission between a weapon and a projectile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977992C (en) * 1964-03-21 1974-12-19
US3500746A (en) * 1968-04-17 1970-03-17 Lear Siegler Inc Weapon system with an electronic time fuze
FR2036058A5 (en) * 1969-03-04 1970-12-24 Piazza Henri
FR2055899A6 (en) * 1969-03-04 1971-05-14 Piazza Henri
US4424745A (en) * 1972-03-24 1984-01-10 The United States Of America As Represented By The Secretary Of The Navy Digital timer fuze
FR2250095B1 (en) * 1973-11-07 1978-11-17 Dassault Electronique
FR2577036B1 (en) * 1985-01-31 1987-03-27 France Etat Armement PROJECTILE WEAPON SYSTEM CONTAINING A VULNERANT LOAD

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FR2601484A1 (en) 1988-01-15
EP0252821A1 (en) 1988-01-13
DE3760769D1 (en) 1989-11-16
FR2601484B1 (en) 1988-10-07
ES2011478B3 (en) 1990-01-16

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