EP3602679B1 - Underwater craft equipped with a winch for deploying a wired antenna - Google Patents

Underwater craft equipped with a winch for deploying a wired antenna Download PDF

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Publication number
EP3602679B1
EP3602679B1 EP18713663.5A EP18713663A EP3602679B1 EP 3602679 B1 EP3602679 B1 EP 3602679B1 EP 18713663 A EP18713663 A EP 18713663A EP 3602679 B1 EP3602679 B1 EP 3602679B1
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EP
European Patent Office
Prior art keywords
antenna
radiofrequency
signal
winch
underwater craft
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EP18713663.5A
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German (de)
French (fr)
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EP3602679A1 (en
Inventor
Franck DURUISSEAU
Pascal Rivet
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Naval Group SA
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Naval Group SA
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/04—Adaptation for subterranean or subaqueous use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/085—Flexible aerials; Whip aerials with a resilient base
    • H01Q1/087—Extensible roll- up aerials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/22—RF wavebands combined with non-RF wavebands, e.g. infrared or optical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole

Definitions

  • the present invention relates to an underwater vehicle such as a proper submarine, equipped with a winch for deploying a broadband reception wire antenna.
  • the invention relates to such an underwater vehicle, the wire antenna deployment winch of which is equipped with a rotary collector using radiofrequency technology, for connecting the antenna to the rest of the equipment of the underwater vehicle.
  • These wire antennas are currently based on radiofrequency technology.
  • These antennas then include a coaxial cable making it possible to connect the antenna to the rest of the submarine through a rotary collector using radiofrequency technology, of the winch.
  • wire antennas of this nature can be installed on board submarines currently under construction or during very major overhauls of old submarines using radio frequency technology antennas, these overhaul operations are extremely cumbersome and expensive, because they are long and require the replacement of a large number of parts.
  • the aim of the invention is to solve these problems.
  • the invention relates to an underwater vehicle comprising a wire antenna for broadband reception and equipped with a wire antenna deployment winch, the winch being equipped with a rotary collector using radiofrequency technology, for connecting the antenna to the rest of the underwater vehicle, characterized in that the antenna is an antenna using optical fiber technology, the end of which associated with the winch comprises means of interfacing with the rotary connector using radiofrequency technology of this winch, comprising means forming the converter of the signal coming from the optical fiber into a radiofrequency signal, of which the output is connected through coaxial cable means to the winch radiofrequency technology rotary collector.
  • This antenna is designated by the general reference 1 in this figure, and comprises at one end, a termination nipple, designated by the general reference 2, and at its other end, a conventional connector using radiofrequency technology, designated by the general reference 3 .
  • This connector makes it possible to connect the antenna to the rest of the equipment of the submarine, by a complementary connector of a deployment winch of this antenna, on board the submarine.
  • Such an antenna is conventionally several tens or even hundreds of meters long.
  • Such an antenna then comprises means for amplifying the radiofrequency signal, received between a hot point and a cold point of this antenna.
  • amplification means are designated by the general reference 4 on this figure 1 and are supplied by an activation / supply system designated by the general reference 5.
  • this wire antenna 1 not only allows the reception of the VLF / LF / HF signals, but also the supply of the line amplifier through the activation / supply system.
  • a braid serves as a mass.
  • the antenna is designated by the general reference 10 and therefore always comprises a termination nipple designated by the general reference 11, in which a hot point and a cold point are defined for the radiofrequency signal in active mode and in passive mode respectively.
  • This termination teat 11 also comprises a broadband amplifier designated by the general reference 12, associated with a laser making it possible to convert the radiofrequency signals into light signals.
  • This laser is designated by the general reference 13.
  • This laser 13 is therefore associated at the output with an optical fiber designated by the general reference 14, which extends along this antenna to the other end of this antenna to transport the signal.
  • This other end of the antenna is provided with a specific collector using optical fiber technology, designated by the general reference 15, making it possible to connect this antenna to the rest of the underwater vehicle.
  • the invention therefore proposes to make the wire antenna using optical fiber technology compatible with radiofrequency connectivity.
  • FIG. 3 An exemplary embodiment of such a wire antenna is illustrated on figure 3 .
  • the antenna is designated by the general reference 20 and always comprises a termination nipple designated by the general reference 21.
  • This wire antenna always has a cold point and a hot point for the signals, and comprises a wideband amplifier designated by the general reference 22 and a laser designated by the general reference 23, for converting the radiofrequency signals into light signals.
  • An optical fiber designated by the general reference 24, makes it possible to transport these light signals from one end of the wire antenna to the other.
  • interfacing means are provided. designated by the general reference 25, making it possible to convert the light signal received into a radiofrequency signal.
  • these means comprise means for detecting this light signal, designated by the general reference 26, coming from the optical fiber.
  • the output of these interfacing means 25 is then connected through means forming a coaxial cable, designated by the general reference 29, to a conventional connector using radiofrequency technology designated by the general reference 30 and therefore making it possible to connect this wire antenna with technology.
  • fiber optic cable to a winch equipped with radiofrequency connectors.
  • the antenna also comprises electrical supply conductors extending along it.
  • FIG. 4 An exemplary embodiment of such an antenna and corresponding means is illustrated on figure 4 .
  • the wire antenna is designated by the general reference 40 and the termination nipple thereof by the reference 41.
  • This terminal part of the antenna still comprises wideband amplification means designated by the general reference 42 and a laser designated by the general reference 43.
  • the output of this laser 43 is associated with an optical fiber 44, the end of which associated with the underwater vehicle still comprises means for detecting signals 45, amplifying means 46, and supply means 47. of this part of the antenna.
  • Means forming a coaxial cable 48 still make it possible to connect this end of the antenna through a standard radiofrequency connector 49, to the corresponding connector of the deployment winch of the antenna of the submarine.
  • the power supply to the organs or components arranged at the free end of the antenna is provided by a pair of copper conductors, in the exemplary embodiment illustrated in FIG. figure 4 , this supply is provided from energy storage means such as for example batteries designated by the general reference 50, placed in for example at the end of the termination nipple of the antenna.
  • energy storage means such as for example batteries designated by the general reference 50, placed in for example at the end of the termination nipple of the antenna.
  • These electrical energy storage means 50 for supplying this end of the antenna then make it possible to ensure the supply of electrical energy to the latter by example under the control of means forming a pressure sensor, designated by the general reference 51 on this figure 4 .
  • the teat is not under pressure and the pressure sensor 51 is at maximum volume to close contact with the batteries.
  • the antenna is thus supplied.
  • the nipple When the antenna is below the surface, the nipple is under pressure and the pressure sensor is at minimum volume.
  • the pacifier When the antenna is stored in the submarine, the pacifier is no longer under pressure.
  • a battery deactivation system is then put in place.
  • Batteries or other means of storing electrical energy can easily be replaced by removing the pacifier or part of it on board.
  • the energy storage means such as, for example, batteries, are also associated with means for monitoring and indicating their state and in particular their state of charge SOC.
  • these monitoring means comprise a voltage / frequency converter, indicating the state of these storage means.
  • This converter is designated by the general reference 52, and therefore makes it possible to deliver a state indication signal, the frequency of which depends for example on the voltage of the batteries.
  • a mixer designated by the general reference 53 makes it possible to integrate this frequency signal delivered by this converter into the radiofrequency signal, in order to be transmitted along the optical fiber 44, to the rest of the underwater vehicle.
  • the operators can then recover this signal in order to obtain status information from the energy storage means.

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Description

La présente invention concerne un engin sous-marin tel qu'un sous-marin proprement dit, équipé d'un treuil de déploiement d'une antenne filaire de réception large bande.The present invention relates to an underwater vehicle such as a proper submarine, equipped with a winch for deploying a broadband reception wire antenna.

Plus particulièrement, l'invention se rapporte à un tel engin sous-marin, dont le treuil de déploiement de l'antenne filaire est équipé d'un collecteur tournant à technologie radiofréquence, de raccordement de l'antenne au reste des équipements de l'engin sous-marin.More particularly, the invention relates to such an underwater vehicle, the wire antenna deployment winch of which is equipped with a rotary collector using radiofrequency technology, for connecting the antenna to the rest of the equipment of the underwater vehicle.

On sait que les engins sous-marins tels que les sous-marins proprement dits, sont aujourd'hui équipés d'antennes filaires de réception large bande leur permettant de recevoir des signaux radiofréquence.It is known that underwater vehicles such as submarines proper, are today equipped with broadband reception wire antennas enabling them to receive radiofrequency signals.

Ces antennes filaires sont actuellement basées sur une technologie radiofréquence.These wire antennas are currently based on radiofrequency technology.

Ces antennes comportent alors un câble coaxial permettant de raccorder l'antenne au reste du sous-marin à travers un collecteur tournant à technologie radiofréquence, du treuil.These antennas then include a coaxial cable making it possible to connect the antenna to the rest of the submarine through a rotary collector using radiofrequency technology, of the winch.

Mais on sait également qu'il existe dans l'état de la technique, des antennes filaires à technologie à fibre optique (voir par exemple le document EP2309594 ).However, it is also known that in the state of the art there are wire antennas using optical fiber technology (see for example the document EP2309594 ).

Si des antennes filaires de cette nature peuvent être implantées à bord des sous-marins actuellement en cours de construction ou lors de refontes très importantes des sous-marins anciens utilisant des antennes à technologie radiofréquence, ces opérations de refonte sont extrêmement lourdes et coûteuses, car elles sont longues et nécessitent le remplacement d'un nombre de pièces important.While wire antennas of this nature can be installed on board submarines currently under construction or during very major overhauls of old submarines using radio frequency technology antennas, these overhaul operations are extremely cumbersome and expensive, because they are long and require the replacement of a large number of parts.

En règle générale, les moyens nécessaires à ce type de refonte ne sont pas engagés et ces sous-marins anciens ne peuvent donc pas être équipés d'antenne filaire à technologie à fibre optique.As a general rule, the means necessary for this type of overhaul are not committed and these old submarines therefore cannot be equipped with a wire antenna using fiber optic technology.

Le but de l'invention est de résoudre ces problèmes.The aim of the invention is to solve these problems.

A cet effet, l'invention a pour objet un engin sous-marin comprenant une antenne filaire de réception large bande et équipé d'un treuil de déploiement de l'antenne filaire, le treuil étant équipé d'un collecteur tournant à technologie radiofréquence, de raccordement de l'antenne au reste de l'engin sous-marin, caractérisé en ce que l'antenne est une antenne à technologie à fibre optique dont l'extrémité associée au treuil comporte des moyens d'interfaçage au connecteur tournant à technologie radiofréquence de ce treuil, comprenant des moyens formant convertisseur du signal issu de la fibre optique en un signal radiofréquence, dont la sortie est raccordée à travers des moyens formant câble coaxial au collecteur tournant à technologie radiofréquence du treuil.To this end, the invention relates to an underwater vehicle comprising a wire antenna for broadband reception and equipped with a wire antenna deployment winch, the winch being equipped with a rotary collector using radiofrequency technology, for connecting the antenna to the rest of the underwater vehicle, characterized in that the antenna is an antenna using optical fiber technology, the end of which associated with the winch comprises means of interfacing with the rotary connector using radiofrequency technology of this winch, comprising means forming the converter of the signal coming from the optical fiber into a radiofrequency signal, of which the output is connected through coaxial cable means to the winch radiofrequency technology rotary collector.

Suivant d'autres caractéristiques de l'engin selon l'invention, prises seules ou en combinaison :

  • l'antenne à fibre optique comporte :
    • des moyens de récupération d'un signal radiofréquence,
    • des moyens d'amplification large bande de celui-ci,
    • des moyens de conversion du signal radiofréquence en un signal lumineux,
    • des moyens de transport de ce signal lumineux par fibre optique, et en ce que les moyens d'interfaçage comprennent des moyens de conversion du signal lumineux en un signal radiofréquence,
    • des moyens d'amplification large bande de ce signal radiofréquence,
    • les moyens formant câble coaxial, et
    • un connecteur radiofréquence ;
  • l'antenne comporte également des conducteurs électriques d'alimentation s'étendant le long de celle-ci ;
  • l'antenne comporte à son extrémité libre, une tétine de terminaison dans laquelle sont disposés des moyens de stockage d'énergie électrique d'alimentation de cette extrémité de l'antenne, et dont le fonctionnement est contrôlé par des moyens formant capteur de pression ;
  • les moyens de stockage d'énergie électrique sont associés à un convertisseur de tension/fréquence d'indication de l'état de ces moyens de stockage ;
  • le signal de fréquence délivré par le convertisseur est intégré au signal radiofréquence afin d'être transmis le long de la fibre vers le reste de l'engin sous-marin ;
  • les moyens de stockage d'énergie comprennent des piles.
According to other characteristics of the device according to the invention, taken alone or in combination:
  • the fiber optic antenna includes:
    • means for recovering a radiofrequency signal,
    • broadband amplification means thereof,
    • means for converting the radiofrequency signal into a light signal,
    • means for transporting this light signal by optical fiber, and in that the interfacing means comprise means for converting the light signal into a radiofrequency signal,
    • broadband amplification means for this radiofrequency signal,
    • the means forming a coaxial cable, and
    • a radio frequency connector;
  • the antenna also includes electrical supply conductors extending along it;
  • the antenna comprises at its free end, a termination nipple in which are arranged means for storing electrical energy supplying this end of the antenna, and the operation of which is controlled by means forming a pressure sensor;
  • the electrical energy storage means are associated with a voltage / frequency converter indicating the state of these storage means;
  • the frequency signal delivered by the converter is integrated with the radiofrequency signal in order to be transmitted along the fiber to the rest of the underwater vehicle;
  • the energy storage means comprise batteries.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels :

  • la figure 1 représente une vue schématique d'une antenne filaire à technologie radiofréquence de l'état de la technique ;
  • la figure 2 représente une vue schématique d'une antenne filaire à technologie à fibre optique de l'état de la technique ;
  • la figure 3 représente une vue schématique d'une antenne filaire selon l'invention à technologie à fibre optique compatible avec une connectique à technologie radiofréquence d'un engin sous-marin ; et
  • la figure 4 représente une variante de réalisation d'une telle antenne selon l'invention.
The invention will be better understood on reading the description which will follow, given solely by way of example and made with reference to the appended drawings, in which:
  • the figure 1 represents a schematic view of a wire antenna with radiofrequency technology of the state of the art;
  • the figure 2 shows a schematic view of a wire antenna with optical fiber technology of the state of the art;
  • the figure 3 represents a schematic view of a wire antenna according to the invention with optical fiber technology compatible with a radio frequency technology connector of an underwater vehicle; and
  • the figure 4 represents an alternative embodiment of such an antenna according to the invention.

On a en effet illustré sur la figure 1, une antenne filaire à technologie radiofréquence.We have indeed illustrated on the figure 1 , a wire antenna with radiofrequency technology.

Cette antenne est désignée par la référence générale 1 sur cette figure, et comporte à une extrémité, une tétine de terminaison, désignée par la référence générale 2, et à son autre extrémité, un connecteur classique à technologie radiofréquence, désigné par la référence générale 3.This antenna is designated by the general reference 1 in this figure, and comprises at one end, a termination nipple, designated by the general reference 2, and at its other end, a conventional connector using radiofrequency technology, designated by the general reference 3 .

Ce connecteur permet de raccorder l'antenne au reste des équipements du sous-marin, par un connecteur complémentaire d'un treuil de déploiement de cette antenne, embarqué à bord du sous-marin.This connector makes it possible to connect the antenna to the rest of the equipment of the submarine, by a complementary connector of a deployment winch of this antenna, on board the submarine.

Une telle antenne fait de façon classique, plusieurs dizaines voire centaines de mètres de long.Such an antenna is conventionally several tens or even hundreds of meters long.

Une telle antenne comporte alors des moyens d'amplification du signal radiofréquence, reçu entre un point chaud et un point froid de cette antenne.Such an antenna then comprises means for amplifying the radiofrequency signal, received between a hot point and a cold point of this antenna.

Ces moyens d'amplification sont désignés par la référence générale 4 sur cette figure 1 et sont alimentés par un système d'activation/alimentation désigné par la référence générale 5.These amplification means are designated by the general reference 4 on this figure 1 and are supplied by an activation / supply system designated by the general reference 5.

Ainsi l'âme de cette antenne filaire 1 permet non seulement la réception des signaux VLF/LF/HF, mais également l'alimentation de l'amplificateur de ligne à travers le système d'activation/alimentation.Thus the core of this wire antenna 1 not only allows the reception of the VLF / LF / HF signals, but also the supply of the line amplifier through the activation / supply system.

Une tresse sert de masse.A braid serves as a mass.

C'est donc cette configuration d'antenne qui est compatible avec la majorité des collecteurs tournants à technologie radiofréquence dans les sous-marins disposant d'un treuil de déploiement d'une antenne filaire à technologie radiofréquence.It is therefore this antenna configuration which is compatible with the majority of rotary collectors using radiofrequency technology in submarines having a winch for deploying a wire antenna using radiofrequency technology.

On a illustré sur la figure 2, un exemple de réalisation d'une antenne filaire à technologie à fibre optique.We have illustrated on the figure 2 , an exemplary embodiment of a wire antenna using optical fiber technology.

Sur cette figure 2, l'antenne est désignée par la référence générale 10 et comporte donc toujours une tétine de terminaison désignée par la référence générale 11, dans laquelle sont définis un point chaud et un point froid pour le signal radiofréquence en mode actif et en mode passif respectivement.On this figure 2 , the antenna is designated by the general reference 10 and therefore always comprises a termination nipple designated by the general reference 11, in which a hot point and a cold point are defined for the radiofrequency signal in active mode and in passive mode respectively.

Cette tétine de terminaison 11 comporte également un amplificateur large bande désigné par la référence générale 12, associé à un laser permettant de convertir les signaux radiofréquence en signaux lumineux.This termination teat 11 also comprises a broadband amplifier designated by the general reference 12, associated with a laser making it possible to convert the radiofrequency signals into light signals.

Ce laser est désigné par la référence générale 13.This laser is designated by the general reference 13.

Ce laser 13 est donc associé en sortie, à une fibre optique désignée par la référence générale 14, qui s'étend le long de cette antenne jusqu'à l'autre extrémité de cette antenne pour transporter le signal.This laser 13 is therefore associated at the output with an optical fiber designated by the general reference 14, which extends along this antenna to the other end of this antenna to transport the signal.

Cette autre extrémité de l'antenne est pourvue d'un collecteur spécifique à technologie à fibre optique, désigné par la référence générale 15, permettant de raccorder cette antenne au reste de l'engin sous-marin.This other end of the antenna is provided with a specific collector using optical fiber technology, designated by the general reference 15, making it possible to connect this antenna to the rest of the underwater vehicle.

On conçoit alors que cette technologie à fibre optique n'est pas compatible de la connectique à radiofréquence telle que déployée dans certains sous-marins et illustrée sur la figure 1.We can then imagine that this fiber optic technology is not compatible with radiofrequency connectors as deployed in certain submarines and illustrated on the figure 1 .

L'invention propose donc de rendre l'antenne filaire à technologie à fibre optique compatible d'une connectique à radiofréquence.The invention therefore proposes to make the wire antenna using optical fiber technology compatible with radiofrequency connectivity.

Un exemple de réalisation d'une telle antenne filaire est illustré sur la figure 3.An exemplary embodiment of such a wire antenna is illustrated on figure 3 .

Sur cette figure 3, l'antenne est désignée par la référence générale 20 et comporte toujours une tétine de terminaison désignée par la référence générale 21.On this figure 3 , the antenna is designated by the general reference 20 and always comprises a termination nipple designated by the general reference 21.

Cette antenne filaire présente toujours un point froid et un point chaud pour les signaux, et comporte un amplificateur large bande désigné par la référence générale 22 et un laser désigné par la référence générale 23, de conversion des signaux radiofréquence en signaux lumineux.This wire antenna always has a cold point and a hot point for the signals, and comprises a wideband amplifier designated by the general reference 22 and a laser designated by the general reference 23, for converting the radiofrequency signals into light signals.

Une fibre optique désignée par la référence générale 24, permet de transporter ces signaux lumineux d'une extrémité à l'autre de l'antenne filaire.An optical fiber designated by the general reference 24, makes it possible to transport these light signals from one end of the wire antenna to the other.

A l'autre extrémité de l'antenne filaire, c'est-à-dire celle associée au sous-marin, et plus particulièrement au treuil de déploiement de l'antenne de ce sous-marin, il est prévu des moyens d'interfaçage désignés par la référence générale 25, permettant de convertir le signal lumineux reçu en un signal radiofréquence.At the other end of the wire antenna, that is to say the one associated with the submarine, and more particularly the deployment winch of the antenna of this submarine, interfacing means are provided. designated by the general reference 25, making it possible to convert the light signal received into a radiofrequency signal.

Ainsi, ces moyens comprennent des moyens de détection de ce signal lumineux, désignés par la référence générale 26, issus de la fibre optique.Thus, these means comprise means for detecting this light signal, designated by the general reference 26, coming from the optical fiber.

Ces moyens de détection sont associés à un amplificateur désigné par la référence générale 27.These detection means are associated with an amplifier designated by the general reference 27.

L'alimentation de ces organes est assurée par des moyens d'alimentation 28.The supply of these organs is ensured by supply means 28.

La sortie de ces moyens d'interfaçage 25 est alors reliée à travers des moyens formant câble coaxial, désignés par la référence générale 29, à un connecteur classique à technologie radiofréquence désigné par la référence générale 30 et permettant donc de raccorder cette antenne filaire à technologie à fibre optique à un treuil équipé d'une connectique à radiofréquence.The output of these interfacing means 25 is then connected through means forming a coaxial cable, designated by the general reference 29, to a conventional connector using radiofrequency technology designated by the general reference 30 and therefore making it possible to connect this wire antenna with technology. fiber optic cable to a winch equipped with radiofrequency connectors.

Il est ainsi possible d'équiper les sous-marins dont le treuil de déploiement de l'antenne filaire est muni d'une connectique à radiofréquence avec une antenne filaire à technologie à fibre optique sans impliquer de travaux de refonte lourds de l'engin sous-marin et notamment le remplacement de la connectique.It is thus possible to equip submarines whose wire antenna deployment winch is equipped with a radiofrequency connector with a wire antenna at fiber optic technology without involving heavy overhaul of the underwater vehicle and in particular the replacement of the connectors.

Dans les exemples qui viennent d'être décrits, et en particulier dans la figure 3, l'antenne comporte également des conducteurs électriques d'alimentation s'étendant le long de celle-ci.In the examples which have just been described, and in particular in the figure 3 , the antenna also comprises electrical supply conductors extending along it.

Ces conducteurs électriques permettent alors d'alimenter l'ensemble des composants de cette antenne et en particulier ceux disposés au niveau de sa tétine de terminaison, à partir du connecteur du treuil du sous-marin.These electrical conductors then make it possible to supply all of the components of this antenna and in particular those arranged at its termination nipple, from the connector of the submarine winch.

Des études actuelles montrent qu'un câble coaxial possède une densité équivalente à un câble muni d'une fibre optique et d'une paire de conducteurs en cuivre. Pour obtenir une densité plus faible afin par exemple d'améliorer le diagramme immersion/vitesse, il faut pouvoir s'affranchir de cette paire de conducteurs en cuivre et donc définir une autre façon d'alimenter les composants de la partie terminale de l'antenne filaire.Current studies show that a coaxial cable has a density equivalent to a cable with an optical fiber and a pair of copper conductors. To obtain a lower density in order for example to improve the immersion / speed diagram, it is necessary to be able to do without this pair of copper conductors and therefore to define another way of supplying the components of the terminal part of the antenna. wired.

Un exemple de réalisation d'une telle antenne et de moyens correspondants est illustré sur la figure 4.An exemplary embodiment of such an antenna and corresponding means is illustrated on figure 4 .

Sur cette figure 4, l'antenne filaire est désignée par la référence générale 40 et la tétine de terminaison de celle-ci par la référence 41.On this figure 4 , the wire antenna is designated by the general reference 40 and the termination nipple thereof by the reference 41.

Cette partie terminale de l'antenne comporte toujours des moyens d'amplification large bande désignés par la référence générale 42 et un laser désigné par la référence générale 43.This terminal part of the antenna still comprises wideband amplification means designated by the general reference 42 and a laser designated by the general reference 43.

La sortie de ce laser 43 est associée à une fibre optique 44, dont l'extrémité associée à l'engin sous-marin comporte toujours des moyens de détection des signaux 45, des moyens d'amplification 46, et des moyens 47 d'alimentation de cette partie de l'antenne.The output of this laser 43 is associated with an optical fiber 44, the end of which associated with the underwater vehicle still comprises means for detecting signals 45, amplifying means 46, and supply means 47. of this part of the antenna.

Des moyens formant câble coaxial 48 permettent toujours de connecter cette extrémité de l'antenne à travers un connecteur standard à radiofréquence 49, au connecteur correspondant du treuil de déploiement de l'antenne du sous-marin.Means forming a coaxial cable 48 still make it possible to connect this end of the antenna through a standard radiofrequency connector 49, to the corresponding connector of the deployment winch of the antenna of the submarine.

Alors que sur la figure 3 l'alimentation des organes ou composants disposés à l'extrémité libre de l'antenne, est assurée par une paire de conducteurs en cuivre, dans l'exemple de réalisation illustré sur la figure 4, cette alimentation est assurée à partir de moyens de stockage d'énergie tels que par exemple des piles désignées par la référence générale 50, placées dans par exemple à l'extrémité de la tétine de terminaison de l'antenne.While on the figure 3 the power supply to the organs or components arranged at the free end of the antenna is provided by a pair of copper conductors, in the exemplary embodiment illustrated in FIG. figure 4 , this supply is provided from energy storage means such as for example batteries designated by the general reference 50, placed in for example at the end of the termination nipple of the antenna.

Ces moyens de stockage d'énergie électrique 50 d'alimentation de cette extrémité de l'antenne permettent alors d'assurer l'alimentation en énergie électrique de celle-ci par exemple sous le contrôle de moyens formant capteur de pression, désignés par la référence générale 51 sur cette figure 4.These electrical energy storage means 50 for supplying this end of the antenna then make it possible to ensure the supply of electrical energy to the latter by example under the control of means forming a pressure sensor, designated by the general reference 51 on this figure 4 .

Ainsi par exemple lorsque l'antenne est en surface, la tétine n'est pas sous pression et le capteur de pression 51 est au volume maximal pour fermer le contact avec les piles.Thus, for example when the antenna is on the surface, the teat is not under pressure and the pressure sensor 51 is at maximum volume to close contact with the batteries.

L'antenne est ainsi alimentée.The antenna is thus supplied.

Lorsque l'antenne est sous la surface, la tétine est sous pression et le capteur de pression est au volume minimal.When the antenna is below the surface, the nipple is under pressure and the pressure sensor is at minimum volume.

Ceci permet alors de couper le contact avec les piles et l'antenne n'est plus alimentée.This then cuts off contact with the batteries and the antenna is no longer powered.

Lorsque l'antenne est rangée dans le sous-marin, la tétine n'est plus sous pression.When the antenna is stored in the submarine, the pacifier is no longer under pressure.

Un système de désactivation des piles est alors mis en place.A battery deactivation system is then put in place.

Les piles ou autres moyens de stockage d'énergie électrique peuvent facilement être remplacés en démontant la tétine ou une partie de celle-ci à bord.Batteries or other means of storing electrical energy can easily be replaced by removing the pacifier or part of it on board.

Sur cette figure 4, les moyens de stockage d'énergie tels que par exemple les piles, sont également associés à des moyens de surveillance et d'indication de leur état et en particulier de leur état de charge SOC.On this figure 4 , the energy storage means such as, for example, batteries, are also associated with means for monitoring and indicating their state and in particular their state of charge SOC.

Dans l'exemple illustré sur cette figure 4, ces moyens de surveillance comprennent un convertisseur de tension/fréquence, d'indication de l'état de ces moyens de stockage.In the example shown on this figure 4 , these monitoring means comprise a voltage / frequency converter, indicating the state of these storage means.

Ce convertisseur est désigné par la référence générale 52, et permet donc de délivrer un signal d'indication d'état, dont la fréquence est fonction par exemple de la tension des piles.This converter is designated by the general reference 52, and therefore makes it possible to deliver a state indication signal, the frequency of which depends for example on the voltage of the batteries.

Un mélangeur désigné par la référence générale 53, permet d'intégrer ce signal de fréquence délivré par ce convertisseur au signal radiofréquence, afin d'être transmis le long de la fibre optique 44, vers le reste de l'engin sous-marin.A mixer designated by the general reference 53, makes it possible to integrate this frequency signal delivered by this converter into the radiofrequency signal, in order to be transmitted along the optical fiber 44, to the rest of the underwater vehicle.

Les opérateurs peuvent alors récupérer ce signal pour avoir une information d'état des moyens de stockage d'énergie.The operators can then recover this signal in order to obtain status information from the energy storage means.

Bien entendu d'autres modes de réalisation de ces différents moyens peuvent être envisagés.Of course, other embodiments of these different means can be envisaged.

On conçoit donc qu'une telle structure d'antenne présente un certain nombre d'avantages.It is therefore understood that such an antenna structure has a certain number of advantages.

En effet, il est ainsi possible d'intégrer à bord d'un sous-marin, une antenne filaire à fibre optique de nouvelle technologie, sans nécessiter d'intervention lourde sur le sous-marin, et en particulier sur le treuil de déploiement de l'antenne filaire de celui-ci, tout en utilisant une connectique radiofréquence.Indeed, it is thus possible to integrate on board a submarine, a wire antenna with optical fiber of new technology, without requiring heavy intervention on the submarine, and in particular on the wire antenna deployment winch thereof, while using radiofrequency connections.

Par ailleurs des améliorations des caractéristiques opérationnelles de l'antenne sont également obtenuesIn addition, improvements in the operational characteristics of the antenna are also obtained.

Claims (7)

  1. An underwater craft equipped with a winch for deploying a wideband-reception wired antenna (20; 40), the winch being equipped with a radiofrequency technology rotating collector, for connecting the antenna to the rest of the underwater craft, characterized in that the antenna is an optical fiber technology antenna whose end associated with the winch includes means (25) for interfacing with the radiofrequency technology rotating connector of this winch, comprising means (26; 45) forming a converter for converting the signal coming from the optical fiber (24; 44) into a radiofrequency signal, whose output is connected by way of means forming a coaxial cable (29; 48) to the radiofrequency technology rotating collector of the winch.
  2. The underwater craft according to claim 1, characterized in that the optical fiber antenna includes:
    - means for recovering a radiofrequency signal,
    - wideband amplification means (22; 42) thereof,
    - means (23; 43) for converting the radiofrequency signal into a light signal,
    - means (24; 44) for transporting this light signal by optical fiber, and in that the interfacing means (25) comprise means (26; 45) for converting the light signal into a radiofrequency signal,
    - means (27; 46) for wideband amplification of this radiofrequency signal,
    - the coaxial cable-forming means (29; 48), and
    - a radiofrequency connector (30; 49).
  3. The underwater craft according to claim 1 or 2, characterized in that the antenna also includes electrical supply conductors extending along the latter.
  4. The underwater craft according to claim 1 or 2, characterized in that the antenna includes, at its free end, a termination boot (41) in which electrical energy supply storage means (50) are positioned for this end of the antenna, and the operation of which is controlled by pressure sensor-forming means (51).
  5. The underwater craft according to claim 4, characterized in that the electrical energy storage means (50) are associated with a voltage/frequency converter (52) indicating the state of these storage means.
  6. The underwater craft according to claim 5, characterized in that the frequency signal delivered by the converter (52) is integrated (in 53) into the radiofrequency signal in order to be transmitted along the fiber toward the rest of the underwater craft.
  7. The underwater craft according to any one of claims 4 to 6, characterized in that the energy storage means (50) comprise battery cells.
EP18713663.5A 2017-03-27 2018-03-27 Underwater craft equipped with a winch for deploying a wired antenna Active EP3602679B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1700323A FR3064407B1 (en) 2017-03-27 2017-03-27 SUBMARINE ENGINE EQUIPPED WITH A WINCH FOR DEPLOYING A WIRED ANTENNA
PCT/EP2018/057747 WO2018178062A1 (en) 2017-03-27 2018-03-27 Underwater craft equipped with a winch for deploying a wired antenna

Publications (2)

Publication Number Publication Date
EP3602679A1 EP3602679A1 (en) 2020-02-05
EP3602679B1 true EP3602679B1 (en) 2021-05-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18713663.5A Active EP3602679B1 (en) 2017-03-27 2018-03-27 Underwater craft equipped with a winch for deploying a wired antenna

Country Status (4)

Country Link
EP (1) EP3602679B1 (en)
CL (1) CL2019002749A1 (en)
FR (1) FR3064407B1 (en)
WO (1) WO2018178062A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110957560B (en) * 2019-12-28 2023-11-21 中国科学院沈阳自动化研究所 High-voltage flexible combined antenna for underwater robot

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132696A (en) * 1990-10-18 1992-07-21 Hughes Aircraft Company Pneumatic extendable antenna for water deployable buoy
EP3244485B1 (en) * 2009-06-12 2019-09-04 Rolls-Royce Marine North America, Inc. Towed antenna system and method
US8179327B1 (en) * 2009-09-25 2012-05-15 The United States Of America, As Represented By The Secretary Of The Navy Subsurface deployable antenna array
FR2951322B1 (en) * 2009-10-09 2011-12-09 Dcns WIRELESS ANTENNA SYSTEM FOR RECEIVING RADIO SIGNALS, IN PARTICULAR FOR A SHIP

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3064407B1 (en) 2019-04-26
CL2019002749A1 (en) 2020-03-06
EP3602679A1 (en) 2020-02-05
FR3064407A1 (en) 2018-09-28
WO2018178062A1 (en) 2018-10-04

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