EP0229133A1 - Cable car with data transmission by cable - Google Patents

Cable car with data transmission by cable

Info

Publication number
EP0229133A1
EP0229133A1 EP86904200A EP86904200A EP0229133A1 EP 0229133 A1 EP0229133 A1 EP 0229133A1 EP 86904200 A EP86904200 A EP 86904200A EP 86904200 A EP86904200 A EP 86904200A EP 0229133 A1 EP0229133 A1 EP 0229133A1
Authority
EP
European Patent Office
Prior art keywords
cable
station
installation according
loop
installation
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.)
Ceased
Application number
EP86904200A
Other languages
German (de)
French (fr)
Inventor
Jacques Bertrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Poma SA
Original Assignee
Pomagalski SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pomagalski SA filed Critical Pomagalski SA
Publication of EP0229133A1 publication Critical patent/EP0229133A1/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/60—Systems for communication between relatively movable stations, e.g. for communication with lift

Definitions

  • the invention relates to a transport installation using an overhead carrier-tractor cable according to the preamble of claim 1.
  • a known installation of the kind mentioned, in particular a cable car, comprises a radio link between the stations and the skips to transmit information to the passengers transported, for example in the event of an incident.
  • the radio link is subject to noise and gray areas and requires authorization to transmit on a given frequency. It has already been proposed to overcome these constraints by using the cable as an electrical conductor for transmitting signals to skips or online cabins.
  • the cable must be isolated from earth, which implies installation and monitoring constraints and does not allow the use of a surge arrester.
  • Another solution is to create a telephone link using a special wire, but this solution is expensive and fragile.
  • the object of the present invention is to enable the realization of a device for transmitting information between the stations and the cabins of a single-cable installation and this aim is achieved by implementing the characteristics of claim 1.
  • the principle used is that of unidirectional coupling by inductive loop, this loop being constituted by the carrier-tractor jackpot, hereinafter referred to as loop cable.
  • a transmitting station induces in the loop cable a high frequency current and each vehicle, called below cabin, in line comprises a receiving station, having a sensor of the magnetic field, generated by the induced current in the cable loop.
  • the sensor. is a rod or an open ferrite frame, of the type used in radio sets, having no electrical or mechanical connection to the cable.
  • the coupling is carried out by an intensity transformer, the loop cable of which constitutes a secondary with a single turn, closed on itself.
  • the circulation of the current in this turn induces a high frequency magnetic field in all the surface delimited by the looped cable and all the cabins close to this cable can pick up this field.
  • the information transmitted may be a safety message or signal and / or a musical or spoken sound system.
  • the transmitter comprises for this purpose an amplitude modulation of the high frequency signal supplied by an oscillator and the receiver includes appropriate circuits for processing the signal received to restore speech.
  • the device according to the invention has the advantage of using the towing cable as a natural loop and it avoids the installation of any other more or less complex, costly or restrictive device.
  • the principle of the inductive loop allows the use of very low powers and limits the radiated field to the immediate proximity of the cable, unlike a radio link.
  • Cable electrical resistance tractor is very weak and the device is not very sensitive to earth leaks. 0e moreover, the short-circuit of the cable to the Earth is not annoying, which makes it possible to preserve the anti-lightning device of earthing.
  • the receiver fitted to each cabin has no electrical or mechanical connection to the towing cable, and the device is therefore particularly suitable for installations with detachable cabs.
  • the radiated field is limited to the immediate vicinity of the cable and the cabins in the garage or bypass are automatically disconnected. There is no limit to the number of cabins online.
  • the receivers advantageously comprise an autonomous source of electrical energy, for example with a solar panel.
  • a carrier detector also automatically limits the time for which the receiver is put into service to the duration of message transmission only.
  • the device can be arranged to transmit coded logical messages to the cabins or to the other station, thus allowing remote signaling without any wired connection.
  • the device can be bidirectional or multidirectional, transmitting speech or logic signals between two or more points without any wire connection between these points.
  • FIG. 1 shows the block diagram of the transmitter station of the installation according to fig. 1;
  • FIG. 3 shows the block diagram of the installation receiving station according to fig. 1; - Figure 4 is a view of the front panel of the transmitter station.
  • an overhead cable transport installation 10 in particular a gondola, comprises two end stations 12, 14, having return pulleys 16, 18, over which the cable 10 passes to form a closed loop.
  • the cable 10 is a carrier-tractor cable to which cabins 20 are coupled in line.
  • the cabins 20 may be of the disengageable type in the station for boarding and disembarking at speed, reduced or zero of passengers.
  • the invention is described as being applied to a gondola, but it can be used in any installation having a conductive cable disposed in a closed loop, in particular a cable car or cable loop cable, or a chairlift or a pulsed gondola or the like.
  • Station 12 is a pulley drive station 16 driven by a motor unit 22 controlled from a control desk 24. Cable 10 can be supported by pylons (not shown) staggered along The Line. Such an installation is well known to specialists, and there is no need to describe it in more detail.
  • the console 24 of the station 12 comprises a transmitter station 26 or transmitter, connected by a shielded conductor 28 to an electrical coupler 30.
  • This coupler 30 is an intensity transformer with an annular magnetic circuit 32 carrying a primary winding 34 connected to the shielded conductor 28.
  • the cable 10 passes through the annular magnetic circuit 32 and constitutes the secondary winding with a single turn of the transformer.
  • the clearance between the cable 10 and the magnetic circuit 32 is sufficient to avoid any mechanical contact.
  • An alternating current flowing through the primary winding 34 induces a current in the circuit formed by the looped cable 10.
  • the transmitting station 26 comprises a high frequency oscillator 36 supplied by an energy source 38, which generates a high frequency square signal, for example around 32 KHZ.
  • This signal is amplitude modulated by a modulator 40, controlled by a low frequency signal, for example emitted by a microphone 42.
  • the modulated signal is filtered by a filter 44 and amplified at 46 and transmitted to the primary winding 34 by the screened conductor 28
  • the current induced in the loop circuit of cable 10 is an image of the modulated signal.
  • the transmitter 26 further comprises a call signal generator (not shown) transmitting on a different frequency for the transmission of signals or safety messages.
  • the transmitter 26 is supplied by an external security source (not shown), which is automatically put into service when there is a signal to be transmitted, by any operating means.
  • Each cabin 20 is equipped with a receiver 48 having a sensor 50, fixed to the hanger near the cable 10.
  • the sensor 50 is a ferrite rod with coil 52, placed near the cable to be subjected to the action of the magnetic field generated by the induced current flowing in the looped cable 10.
  • the signal delivered by the sensor 50 is applied to a high frequency amplifier 54 whose output is connected on the one hand to an emission detector 56 and on the other share in a low frequency amplifier 53 whose output feeds a loudspeaker 60 or any other display or signaling device.
  • the low frequency amplifier 58 is supplied by an autonomous source, in this case a solar panel 62 associated with an accumulator 64.
  • a switch 66 is arranged in the supply circuit of the low frequency amplifier 58 to interrupt this supply by no emissions to save energy.
  • the switch 66 is controlled by the emission detector 56, which comprises a carrier detector 68 and a call detector 70, arranged in parallel.
  • the call detector 70 is associated with a timer 72, maintaining the closing of the switch 66 for a predetermined duration, for example 30 seconds.
  • the call detector 70 detects the emission of a security signal, transmitted on a different frequency by the transmitter 26, for the reception of a security message the duration of which is Limited to 30 seconds.
  • the carrier detector 68 detects a normal transmission and activates the receiver 48 by closing the switch 66 for the reception of this transmission.
  • the receiver 48 is in permanent standby with low energy consumption and it is put into service automatically. It does not require any human intervention or particular maintenance, and it is completely autonomous.
  • the front face 74 of the transmitter station 26 includes a microphone 76, a connector 78 for the connection of a sound recorder and a button 80 for adjusting the sound level.
  • An LED 82 indicates that the transmitter is powered up.
  • a button 84 allows the transmission of a priority safety message, by a special frequency generator, with indication by an indicator light 86.
  • Indicators 88 indicate the supply of the coupler 30 by the emission signal and an indicator 90 signals the sound level.
  • the number of indicator lights 88 corresponds to the number of couplers 30, for example two in the case of an installation having two carrier-tractor cables in parallel.
  • the transmission device operates as follows:
  • the operator can broadcast a musical sound system by connecting a tape recorder to the connector 73.
  • the transmission of the program is automatic by detecting the presence of a signal to be transmitted.
  • the modulated high frequency signal, emitted by the transmitter 26, induced in the cable in loop 10 a high frequency current which generates a magnetic field along the line.
  • the sensors 50 of the online cabins 20 detect this magnetic field and the signals emitted by these sensors 50 activate the receivers 48 by closing the switches 66.
  • the information collected is transmitted to the loudspeaker 60 of the cabin 20.
  • the solar panel 62 supplies the energy in association with the accumulator 64 in the absence of sun. the operator monitors the emission by the indicator lights 88 and adjusts the intensity by the button 80 as indicated by the indicator 90.
  • the operator can send a priority call signal by actuation of the button 84 and transmission of the message by the microphone, 76.
  • the call detector 70 of the receiver 48 detects this call signal and keeps the receiver in service for 30 seconds . It is clear that other uses are possible, a simplified system comprising, for example, only a microphone for transmitting messages or a more elaborate system ensuring the bidirectional transmission of monitoring and / or control signals between the components of the line, in particular Stations, pylons, cabins and the like, these signals being Logic signals.

Abstract

Une station d'une installation de transport à câble aérien est équipée d'un générateur (26) d'un signal haute fréquence modulé en amplitude par l'information à transmettre. Ce générateur (26) est couplé au câble en boucle (10) par un transformateur (30) qui induit un courant dans le câble en boucle formant l'enroulement secondaire. Les cabines (20) sont équipées d'un récepteur (48) autonome qui détecte le champ magnétique engendré par le courant induit dans le câble en boucle et restitue l'information transmise par le câble.A station of an overhead cable transport installation is equipped with a generator (26) of a high frequency signal amplitude modulated by the information to be transmitted. This generator (26) is coupled to the loop cable (10) by a transformer (30) which induces a current in the loop cable forming the secondary winding. The cabins (20) are equipped with an autonomous receiver (48) which detects the magnetic field generated by the current induced in the looped cable and restores the information transmitted by the cable.

Description

TELEC ABINE A TRAN SM I S S I ON D 'INFORMATIONS PAR LE CABLE. TELEC ABINE A TRAN SM I S S I ON OF INFORMATION BY THE CABLE.
L'invention est relative à une installation de transport à câble aérien porteur-tracteur selon Le préambule de La revendication 1.The invention relates to a transport installation using an overhead carrier-tractor cable according to the preamble of claim 1.
Une installation connue du genre mentionné, notamment un téléphérique, comporte une liaison radio entre les stations et les bennes pour transmettre des informations aux passagers transportés, par exemple en cas d'incident. La Liaison radio est sujette à des parasites et à des zones d'ombre et elle nécessite une autorisation d'émission sur une fréquence donnée. Il a déjà été proposé de s'affranchir de ces sujétions par utilisation du câble comme conducteur électrique de transmission de signaux aux bennes ou aux cabines en ligne. Le câble doit être isolé de La terre, ce qui implique des contraintes d'installation et de surveillance et ne permet pas l'emploi d'un parafoudre. Une autre solution consiste à créer une liaison téléphonique par un fil spécial, mais cette solution est coûteuse et fragile.A known installation of the kind mentioned, in particular a cable car, comprises a radio link between the stations and the skips to transmit information to the passengers transported, for example in the event of an incident. The radio link is subject to noise and gray areas and requires authorization to transmit on a given frequency. It has already been proposed to overcome these constraints by using the cable as an electrical conductor for transmitting signals to skips or online cabins. The cable must be isolated from earth, which implies installation and monitoring constraints and does not allow the use of a surge arrester. Another solution is to create a telephone link using a special wire, but this solution is expensive and fragile.
Il est également connu ( FR-A-1.219.017 et FR -A-1.460.621) de réaliser une transmission induit ive par l'intermédiaire du câble de transport en utilisant à l'émission et à la réception des transformateurs en anneau ou toriques à travers Lesquels passe le câble. Cette solution est utilisable pour des véhicules restant accouplés au câble en permanence, Le câble ne passant pas sur des galets de support ou de maintien.It is also known (FR-A-1.219.017 and FR -A-1.460.621) to carry out an induced transmission via the transport cable by using ring transformers on the transmission and reception toric through which the cable passes. This solution can be used for vehicles remaining permanently coupled to the cable, the cable not passing over support or retaining rollers.
La présente invention a pour but de permettre La réalisation d'un dispositif de transmission d'informations entre les stations et les cabines d'une installation monocâble et ce but est réalisé par la mise en oeuvre des caractéristiques de La revendication 1. Le principe utilisé est celui du couplage unidirectionnel par boucle inductive, cette boucle étant constituée par le câole porteur-tracteur, dénommé par la suite câble en boucle. Dans la station ou gare d'émission un poste émetteur induit dans le câble en boucle un courant haute fréquence et chaque véhieule, dénommé ci-dessous cabine, en ligne comporte un poste récepteur, ayant un capteur du champ magnétique, engendré par le courant induit dans le circuit en boucle du câble. Le capteur. est un barreau ou un cadre ouvert en ferrite, du type utilisé dans les postes de radio, n'ayant aucune liaison électrique ou mécanique avec le câble. A l'émission le couplage est réalisé par un transformateur d'intensité, dont le câble en boucle constitue un secondaire à une seule spire, fermée sur elle-même. La circulation du courant dans cette spire induit un champ magnétique haute fréquence dans toute la surface délimitée par le câble en boucle et toutes les cabines à proximité de ce câble peuvent capter ce champ.The object of the present invention is to enable the realization of a device for transmitting information between the stations and the cabins of a single-cable installation and this aim is achieved by implementing the characteristics of claim 1. The principle used is that of unidirectional coupling by inductive loop, this loop being constituted by the carrier-tractor jackpot, hereinafter referred to as loop cable. In the transmitting station or station a transmitting station induces in the loop cable a high frequency current and each vehicle, called below cabin, in line comprises a receiving station, having a sensor of the magnetic field, generated by the induced current in the cable loop. The sensor. is a rod or an open ferrite frame, of the type used in radio sets, having no electrical or mechanical connection to the cable. On transmission, the coupling is carried out by an intensity transformer, the loop cable of which constitutes a secondary with a single turn, closed on itself. The circulation of the current in this turn induces a high frequency magnetic field in all the surface delimited by the looped cable and all the cabins close to this cable can pick up this field.
L'information transmise peut être un message ou un signal de sécurité et/ou une sonorisation musicale ou parlée. L'émetteur comporte à cet effet une modulation, en amplitude du signal haute fréquence, fourni par un oscillateur et le récepteur comporte des circuits appropriés de traitement du signal capté pour restituer la parole.The information transmitted may be a safety message or signal and / or a musical or spoken sound system. The transmitter comprises for this purpose an amplitude modulation of the high frequency signal supplied by an oscillator and the receiver includes appropriate circuits for processing the signal received to restore speech.
Le dispositif selon l'invention présente l'avantage d'utiliser le câble tracteur comme boucle naturelle et il évite la pose-de tout autre dispositif plus ou moins complexe, coûteux ou contraignant. Le principe de La boucle inductive permet l'utilisation de très faibles puissances et limite le champ rayonné à La proximité immédiate du câble, contrairement à une liaison radio. La résistance électrique du câble tracteur est très faible et le dispositif est peu sensible aux fuites à la terre. 0e plus, le court-circuit du câble à La terre n'est pas gênant, ce qui permet de conserver Le dispositif anti-foudre de mise à la terre. Le récepteur qui équipe chaque cabine n'a aucune liaison ni électrique, ni mécanique au câble tracteur, et le dispositif est de ce fait particulièrement adapté aux installations à cabines débrayables. Le champ rayonné est Limité à la proximité immédiate du câble et les cabines en voie de garage ou de contournement sont automatiquement déconnectées. Le nombre de cabines en ligne n'est pas limité.The device according to the invention has the advantage of using the towing cable as a natural loop and it avoids the installation of any other more or less complex, costly or restrictive device. The principle of the inductive loop allows the use of very low powers and limits the radiated field to the immediate proximity of the cable, unlike a radio link. Cable electrical resistance tractor is very weak and the device is not very sensitive to earth leaks. 0e moreover, the short-circuit of the cable to the Earth is not annoying, which makes it possible to preserve the anti-lightning device of earthing. The receiver fitted to each cabin has no electrical or mechanical connection to the towing cable, and the device is therefore particularly suitable for installations with detachable cabs. The radiated field is limited to the immediate vicinity of the cable and the cabins in the garage or bypass are automatically disconnected. There is no limit to the number of cabins online.
Pour éviter toute servitude d'exploitation, Les récepteurs comportent avantageusement une source d'énergie électrique autonome, par exemple à panneau solaire. Un détecteur de porteuse limite de plus automatiquement le temps de mise en service du récepteur à la seule durée de transmission des messages.To avoid any operating easement, the receivers advantageously comprise an autonomous source of electrical energy, for example with a solar panel. A carrier detector also automatically limits the time for which the receiver is put into service to the duration of message transmission only.
Il est possible de coupler un second émetteur au câble, par exemple dans l'autre gare, ce qui permet de transmettre des informations aux cabines indifféremment depuis l'une ou l'autre des deux gares. Ce poste peut comporter un récepteur pour capter les informations émises par l'autre gare. Selon une variante, le dispositif peut être agencé pour transmettr aux cabines ou à l'autre gare des messages logiques codés, permettant alors la signalisation à distance sans aucune liaison filaire. Dans une version à deux ou plusieurs émetteurs calés sur des fréquences différentes ou travaillant à tour de rôle, le dispositif peut être bidirectionnel ou multidirectionnel, transmettant la parole ou des signaux logiques entre deux ou plusieurs points sans aucune liaison filaire entre ces points.It is possible to couple a second transmitter to the cable, for example in the other station, which makes it possible to transmit information to the cabins either from one or the other of the two stations. This station can include a receiver to receive information sent by the other station. According to a variant, the device can be arranged to transmit coded logical messages to the cabins or to the other station, thus allowing remote signaling without any wired connection. In a version with two or more transmitters calibrated on different frequencies or working in turn, the device can be bidirectional or multidirectional, transmitting speech or logic signals between two or more points without any wire connection between these points.
D'autres avantages et caractéristiques ressorti ront plus clairement de la description qui va suivre d'un mode de mise en oeuvre de l'invention, donné à titre d'exemple non limitatif et représenté aux dessins annexés, dans lesquels : - la figure 1 est une vue schématique d'une installation selon l'invention;Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention, given by way of nonlimiting example and shown in the appended drawings, in which: - Figure 1 is a schematic view of an installation according to the invention;
- la figure 2 montre le schéma synoptique du poste émetteur de l'installation selon La fig. 1;- Figure 2 shows the block diagram of the transmitter station of the installation according to fig. 1;
- la figure 3 montre le schéma synoptique du poste récepteur de l'installation selon la fig. 1; - La figure 4 est une vue du panneau frontal du poste émetteur.- Figure 3 shows the block diagram of the installation receiving station according to fig. 1; - Figure 4 is a view of the front panel of the transmitter station.
Sur la figure 1, une installation de transport à câble aérien 10, notamment une télécabine, comporte deux stations 12, 14 d'extrémités, ayant des poulies de renvoi 16, 18, sur lesquelles passent le câble 10 pour former une boucle fermée. Le câble 10 est un câble porteur-tracteur auquel sont accouplées en ligne des cabines 20. Les cabines 20 peuvent être du type débrayable en station pour un embarquement et débarqu .ment à vitesse, réduite ou nulle des passagers. L'invention est décrite comme étant appliquée à une télécabine, mais ell peut être utilisée dans toute installation ayant un câble conducteur disposé en boucle fermée, notamment un téléphérique ou une télébenne à câble en boucle, ou un télésiège ou une télécabine puisée ou analogue. La station 12 est une station motrice à poulie 16 entraînée par un groupe moteur 22 piloté à partir d'un pupitre de commande 24. Le câble 10 peut être supporté par des pylônes (non représentés) échelonnés le long de La Ligne. Une telle installation est bien connue des spécialistes, et il est inutile de la décrire plus en détail.In FIG. 1, an overhead cable transport installation 10, in particular a gondola, comprises two end stations 12, 14, having return pulleys 16, 18, over which the cable 10 passes to form a closed loop. The cable 10 is a carrier-tractor cable to which cabins 20 are coupled in line. The cabins 20 may be of the disengageable type in the station for boarding and disembarking at speed, reduced or zero of passengers. The invention is described as being applied to a gondola, but it can be used in any installation having a conductive cable disposed in a closed loop, in particular a cable car or cable loop cable, or a chairlift or a pulsed gondola or the like. Station 12 is a pulley drive station 16 driven by a motor unit 22 controlled from a control desk 24. Cable 10 can be supported by pylons (not shown) staggered along The Line. Such an installation is well known to specialists, and there is no need to describe it in more detail.
Le pupitre 24 de la station 12 comporte un poste émetteur 26 ou transmetteur, relié par un conducteur blindé 28 à un coupleur électrique 30. Ce coupleur 30 est un transformateur d'intensité à circuit magnétique annulaire 32 portant un bobinage primaire 34 connecté au conducteur blindé 28. Le câble 10 passe à travers le circuit magnétique annulaire 32 et constitue l'enroulemeπt secondaire à une seule spire du transformateur. Le jeu entre le câble 10 et le circuit magnétique 32 est suffisant pour éviter tout contact mécanique. Un courant alternatif parcourant le bobinage primaire 34 induit un courant dans le circuit formé par le câble en boucle 10. Le poste émetteur 26 comporte un oscillateur 36 à haute fréquence alimentée par une source d'énergie 38, qui génère un signal carré haute fréquence, par exemple d'environ 32 KHZ. Ce signal est modulé en amplitude par un modulateur 40, piloté par un signal basse fréquence, par exemple émis par un microphone 42. Le signal modulé est filtré par un filtre 44 et amplifié en 46 et transmis au bobinage primaire 34 par le conducteur blindé 28. Le courant induit dans le circuit en boucle du câble 10 est une image du signal modulé. L'émetteur 26 comporte de plus un générateur de signal d'appel (non représenté) émettant sur une fréquence .différente pour la transmission de signaux ou de messages de sécurité. L'alimentation de L'émetteur 26 est réalisée par une source extérieure de sécurité (non représentée), mise en service automatiquement lors de la présence d'un signal à émettre, par tout moyen opérant.The console 24 of the station 12 comprises a transmitter station 26 or transmitter, connected by a shielded conductor 28 to an electrical coupler 30. This coupler 30 is an intensity transformer with an annular magnetic circuit 32 carrying a primary winding 34 connected to the shielded conductor 28. The cable 10 passes through the annular magnetic circuit 32 and constitutes the secondary winding with a single turn of the transformer. The clearance between the cable 10 and the magnetic circuit 32 is sufficient to avoid any mechanical contact. An alternating current flowing through the primary winding 34 induces a current in the circuit formed by the looped cable 10. The transmitting station 26 comprises a high frequency oscillator 36 supplied by an energy source 38, which generates a high frequency square signal, for example around 32 KHZ. This signal is amplitude modulated by a modulator 40, controlled by a low frequency signal, for example emitted by a microphone 42. The modulated signal is filtered by a filter 44 and amplified at 46 and transmitted to the primary winding 34 by the screened conductor 28 The current induced in the loop circuit of cable 10 is an image of the modulated signal. The transmitter 26 further comprises a call signal generator (not shown) transmitting on a different frequency for the transmission of signals or safety messages. The transmitter 26 is supplied by an external security source (not shown), which is automatically put into service when there is a signal to be transmitted, by any operating means.
Chaque cabine 20 est équipée d'un récepteur 48 ayant un capteur 50, fixé à la suspente à proximité du câble 10. Le capteur 50 est un barreau en ferrite à bobinage 52, disposé à proximité du câble pour être soumis à l'action du champ magnétique engendré par le courant induit circulant dans le câble en boucle 10. Le signal délivré par le capteur 50 est appliqué à un amplificateur haute fréquence 54 dont la sortie est reliée d'une part à un détecteur d'émission 56 et d'autre part à un amplificateur basse fréquence 53 dont la sortie alimente un haut parleur 60 ou tout autre dispositif d'affichage ou de signalisation. L'amplificateur basse fréquence 58 est alimenté par une source autonome, en L'occurrence un panneau solaire 62 associé à un accumulateur 64. Un interrupteur 66 est disposé dans le circuit d'alimentation de l'amplificateur basse fréquence 58 pour interrompre cette alimentation en l'absence d'émission pour économiser l'énergie. L'interrupteur 66 est commandé par Le détecteur d'émission 56, qui comporte un détecteur de porteuse 68 et un détecteur d'appel 70, disposé en parallèle. Au détecteur d'appel 70 est associé un temporisateur 72, maintenant la fermeture de l'interrupteur 66 pendant une durée prédéterminée, par exemple de 30 secondes. Le détecteur d'appel 70 détecte l'émission d'un signal de sécurité, émis sur une fréquence différente par l'émetteur 26, pour la réception d'un message de sécurité dont la durée est Limitée à 30 secondes. Le détecteur de porteuse 68 détecte une émission normale et met en service le récepteur 48 par fermeture de L'interrupteur 66 pour la réception de cette émission. Le récepteur 48 est en veille permanente à faible consommation d'énergie et il se met en service automatiquement. Il ne nécessite aucune intervention humaine ni entretien particulier, et il est entière¬ment autonome.Each cabin 20 is equipped with a receiver 48 having a sensor 50, fixed to the hanger near the cable 10. The sensor 50 is a ferrite rod with coil 52, placed near the cable to be subjected to the action of the magnetic field generated by the induced current flowing in the looped cable 10. The signal delivered by the sensor 50 is applied to a high frequency amplifier 54 whose output is connected on the one hand to an emission detector 56 and on the other share in a low frequency amplifier 53 whose output feeds a loudspeaker 60 or any other display or signaling device. The low frequency amplifier 58 is supplied by an autonomous source, in this case a solar panel 62 associated with an accumulator 64. A switch 66 is arranged in the supply circuit of the low frequency amplifier 58 to interrupt this supply by no emissions to save energy. The switch 66 is controlled by the emission detector 56, which comprises a carrier detector 68 and a call detector 70, arranged in parallel. The call detector 70 is associated with a timer 72, maintaining the closing of the switch 66 for a predetermined duration, for example 30 seconds. The call detector 70 detects the emission of a security signal, transmitted on a different frequency by the transmitter 26, for the reception of a security message the duration of which is Limited to 30 seconds. The carrier detector 68 detects a normal transmission and activates the receiver 48 by closing the switch 66 for the reception of this transmission. The receiver 48 is in permanent standby with low energy consumption and it is put into service automatically. It does not require any human intervention or particular maintenance, and it is completely autonomous.
En se référant à La figure 4, on voit que la face avant 74 du poste émetteur 26 comporte un microphone 76, un connecteur 78 pour Le raccordement d'un magnétophone de sonorisation et en bouton 80 de réglage du niveau de sonorisation. Un voyant 82 signale La mise sous tension de l'émetteur. Un bouton 84 permet l'émission d'un message prioritaire de sécurité, par un générateur de fréquence spéciale, avec indication par un voyant 86. Des voyants 88 signalent l'alimentation du coupleur 30 par le signal d'émission et un indicateur 90 signale le niveau sonore. Le nombre de voyants 88 correspond au nombre de coupleurs 30, par exemple deux dans le cas d'une installation ayant deux câbles porteurs-tracteurs en parallèle .Referring to FIG. 4, it can be seen that the front face 74 of the transmitter station 26 includes a microphone 76, a connector 78 for the connection of a sound recorder and a button 80 for adjusting the sound level. An LED 82 indicates that the transmitter is powered up. A button 84 allows the transmission of a priority safety message, by a special frequency generator, with indication by an indicator light 86. Indicators 88 indicate the supply of the coupler 30 by the emission signal and an indicator 90 signals the sound level. The number of indicator lights 88 corresponds to the number of couplers 30, for example two in the case of an installation having two carrier-tractor cables in parallel.
Le dispositif de transmission fonctionne de la manière suivante :The transmission device operates as follows:
L'opérateur peut diffuser une sonorisation musicale en branchant un magnétophone sur le connecteur 73. La mise en service de l'émission est automatique par la détection de la présence d'un signal à transmettre. Le signal haute fréquence modulé, émis par l'émetteur 26, induit dans le câble en boucle 10 un courant haute fréquence qui engendre un champ magnétique tout au long de la ligne. Les capteurs 50 des cabines 20 en ligne détectent ce champ magnétique et les signaux émis par ces capteurs 50 mettent en service les récepteurs 48 par fermeture des interrupteurs 66. Les informations captées sont transmises au haut-parleur 60 de la cabine 20. Le panneau solaire 62 fournit l'énergie en association avec l'accumulateur 64 en cas d'absence de soleil. l'opérateur surveille l'émission par les voyants 88 et il règle l'intensité par le bouton 80 selon les indications de l'indicateur 90.The operator can broadcast a musical sound system by connecting a tape recorder to the connector 73. The transmission of the program is automatic by detecting the presence of a signal to be transmitted. The modulated high frequency signal, emitted by the transmitter 26, induced in the cable in loop 10 a high frequency current which generates a magnetic field along the line. The sensors 50 of the online cabins 20 detect this magnetic field and the signals emitted by these sensors 50 activate the receivers 48 by closing the switches 66. The information collected is transmitted to the loudspeaker 60 of the cabin 20. The solar panel 62 supplies the energy in association with the accumulator 64 in the absence of sun. the operator monitors the emission by the indicator lights 88 and adjusts the intensity by the button 80 as indicated by the indicator 90.
L'opérateur peut émettre un signal d'appel prioritaire par actionnement du bouton 84 et transmission du message par le microphone, 76. Le détecteur d'appel 70 du récepteur 48 détecte ce signal d'appel et maintient le récepteur en service pendant 30 secondes. Il est clair que d'autres utilisations sont possibles, un système simplifié ne comportant, par exemple, qu'un microphone de transmission de messages ou un système plus élaboré assurant La transmission bidirectionnelle de signaux de surveillance et/ou de commande entre les composants de la ligne, notamment Les stations, les pylônes, les cabines et analogues, ces signaux pouvant être des signaux Logiques.The operator can send a priority call signal by actuation of the button 84 and transmission of the message by the microphone, 76. The call detector 70 of the receiver 48 detects this call signal and keeps the receiver in service for 30 seconds . It is clear that other uses are possible, a simplified system comprising, for example, only a microphone for transmitting messages or a more elaborate system ensuring the bidirectional transmission of monitoring and / or control signals between the components of the line, in particular Stations, pylons, cabins and the like, these signals being Logic signals.
L'invention est bien entendu nullement limitée au mode de mise en oeuvre plus particulièrement décrit. The invention is of course in no way limited to the embodiment more particularly described.

Claims

REVENDICATIONS
1. Installation de transport à câble aérien (10) porteurtracteur, s'étendant en boucle fermée entre deux stations (12, 14) d'extrémités équipées de poulies de renvoi (16, 18), dans Laquelle installation des véhicules (20), notamment des cabines, bennes ou sièges, circulent entre les deux stations en étant accouplés audit câble (10) et comportent un poste (48) récepteur d'informations émises par un poste émetteur (26), localisé dans l'une (12) des stations, et couplé inductivement audit câble (10) par un circuit magnétique (32) en forme d'anneau traversé par le câble et portant un enroulement (34) primaire alimenté par le poste émetteur pour induire un courant modulé porteur desdites informations dans Ladite boucle de câble, caractérisée en ce que le poste récepteur (48) comporte un capteur magnétique (50) disposé sur Le véhicule (20) à proximité dudit câble (10) et ouvert pour ne pas emprisonner Le câble tout en étant traversé par le champ magnétique engendré par Ledit courant modulé, induit dans la boucle de câble par le poste émetteur (26).1. Aerial cable transport installation (10) carrying carrier, extending in a closed loop between two end stations (12, 14) equipped with return pulleys (16, 18), in which installation of the vehicles (20), in particular cabins, skips or seats, circulate between the two stations by being coupled to said cable (10) and include a station (48) receiving information transmitted by a transmitting station (26), located in one (12) stations, and inductively coupled to said cable (10) by a magnetic circuit (32) in the form of a ring crossed by the cable and carrying a primary winding (34) supplied by the transmitter station to induce a modulated current carrying said information in said loop cable, characterized in that the receiving station (48) comprises a magnetic sensor (50) disposed on the vehicle (20) near said cable (10) and open so as not to trap the cable while being traversed by the magnetic field ic generated by Said modulated current, induced in the cable loop by the transmitter station (26).
2. Installation selon la revendication 1, caractérisée en ce que le poste émetteur (26) induit dans ledit câble (10) un courant haute fréquence modulé par Ladite informtion, notamment La parole.2. Installation according to claim 1, characterized in that the transmitter station (26) induces in said cable (10) a high frequency current modulated by said information, in particular speech.
3. Installation selon la revendication 1 ou 2, caractérisée en ce que ledit capteur magnétique (50) comporte un barreau en ferrites, orienté vers le câble (10) et portant un enroulement (52).3. Installation according to claim 1 or 2, characterized in that said magnetic sensor (50) comprises a ferrite bar, oriented towards the cable (10) and carrying a winding (52).
4. Installation selon l'une des revendications précédentes, caractérisée en ce que le poste récepteur (48) comporte une source d'alimentation autonome, notamment à panneau solaire (62) associé à un accumulateur (64) et un dispositif (66) d'économie d'énergie interrompant l'alimentation en l'absence d'émission par le poste émetteur (26). 4. Installation according to one of the preceding claims, characterized in that the receiving station (48) comprises an autonomous power source, in particular with solar panel (62) associated with an accumulator (64) and a device (66) d energy saving interrupting the supply in the absence of emission by the transmitting station (26).
5. Imstallation selon l'une quelconque des revendications précédentes, caractérisée en ce que le poste émetteur (26) comporte un oscillateur (36) haute fréquence, notamment d'environ 32 KHz et un modulateur (40) en amplitude du signal haute fréquence.5. Installation according to any one of the preceding claims, characterized in that the transmitter station (26) comprises a high frequency oscillator (36), in particular about 32 KHz and a modulator (40) in amplitude of the high frequency signal.
6. Installation selon la revendication 5, caractérisée en ce que Le poste émetteur (26) comporte un générateur d'un signal d'appel sur une fréquence spéciale pour la transmission prioritaire de messages de sécurité 6. Installation according to claim 5, characterized in that the transmitter station (26) comprises a generator of a call signal on a special frequency for the priority transmission of safety messages
EP86904200A 1985-07-01 1986-06-30 Cable car with data transmission by cable Ceased EP0229133A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8510511 1985-07-01
FR8510511A FR2584253B1 (en) 1985-07-01 1985-07-01 CABLE WITH INFORMATION TRANSMISSION THROUGH CABLE

Publications (1)

Publication Number Publication Date
EP0229133A1 true EP0229133A1 (en) 1987-07-22

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EP86904200A Ceased EP0229133A1 (en) 1985-07-01 1986-06-30 Cable car with data transmission by cable

Country Status (5)

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US (1) US4868887A (en)
EP (1) EP0229133A1 (en)
JP (1) JPS63500909A (en)
FR (1) FR2584253B1 (en)
WO (1) WO1987000368A1 (en)

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Also Published As

Publication number Publication date
FR2584253A1 (en) 1987-01-02
JPS63500909A (en) 1988-03-31
WO1987000368A1 (en) 1987-01-15
US4868887A (en) 1989-09-19
FR2584253B1 (en) 1988-05-06

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