EP2290632A2 - Multiplexing device, monitoring installation comprising such a device and monitoring method - Google Patents

Multiplexing device, monitoring installation comprising such a device and monitoring method Download PDF

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Publication number
EP2290632A2
EP2290632A2 EP10354029A EP10354029A EP2290632A2 EP 2290632 A2 EP2290632 A2 EP 2290632A2 EP 10354029 A EP10354029 A EP 10354029A EP 10354029 A EP10354029 A EP 10354029A EP 2290632 A2 EP2290632 A2 EP 2290632A2
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EP
European Patent Office
Prior art keywords
radio frequency
component
output
multiplexing
frequency signals
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Granted
Application number
EP10354029A
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German (de)
French (fr)
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EP2290632A3 (en
EP2290632B1 (en
Inventor
Emmanuel Dreina
Thierry Ourth
Lionel Urankar
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP2290632A2 publication Critical patent/EP2290632A2/en
Publication of EP2290632A3 publication Critical patent/EP2290632A3/en
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Publication of EP2290632B1 publication Critical patent/EP2290632B1/en
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/168—Indicators for switching condition, e.g. "on" or "off" making use of an electromagnetic wave communication

Definitions

  • the invention relates to the field of multiplexing devices intended to be interconnected in a monitoring installation for transmitting radio frequency signals between processing means and objects equipped with receivers via antennas.
  • the invention relates in particular to a multiplexing device intended to be interconnected with at least one device of the same type for transmitting radio frequency signals between processing means and a plurality of antennas.
  • the European patent application EP1788599 discloses a monitoring device of an electrical apparatus comprising a transmitter provided with a plurality of emitters for emitting electromagnetic radiation to the receiving means of a plurality of electrical apparatus, said apparatus possibly including an associated electronic processing unit said transmitter and a multiplexing device comprising an input connected to said electronic processing unit and output channels connected to said transmitters.
  • a disadvantage of this type of monitoring device is that the number of output channels of the multiplexing device must be adapted according to the number of transmitters.
  • the coupling means are electromagnetic.
  • the device comprises a plurality of outputs of said radio frequency signals comprising at least one output of a first type intended to transmit radio frequency signals comprising a DC component.
  • the plurality of outputs of said radio frequency signals comprises at least one output of a second type intended to transmit radio frequency signals essentially comprising a non-continuous component.
  • the device comprises means for recovering a DC component of the radiofrequency signals connected to the input of said signals to recover said component, said retrieval means being connected to a supply input of the multiplexer for powering electrically. said multiplexer.
  • the device comprises means for suppressing the DC component connected between the multiplexer and each output of said device.
  • the device comprises means for adding the DC component connected between the means for suppressing the DC component and the at least one output of the first type, said adding means being designed to add said DC component when said output is activated and when said output is connected to a multiplexer device of the same type.
  • the means for adding the DC component comprises an input of said DC component connected to the means for recovering the DC component.
  • the device comprises a controlled switch connected between the input of the DC component of the DC component adding means and the DC component recovery means, said switch having a control input connected to the DC unit. ordered.
  • each multiplexing device being associated with a rank corresponding to the position of said device in said installation with respect to the processing means, each multiplexing device comprising an input of said radio frequency signal and a plurality of outputs of said radio frequency signal, the input a multiplexing device associated with a rank greater than or equal to 2 being connected to an output of a first type intended to transmit radiofrequency signals comprising a DC component of a multiplexing device of the directly lower rank, said antennas being connected at least a portion of the remaining outputs.
  • the installation comprises suitable impedance plugs, said plugs and antennas being connected to the other part of the remaining outputs on which no antenna is connected.
  • the coupling means between the control unit and the input of the radiofrequency signal use a communication medium of the same type as the antennas and the antennas. receivers of objects.
  • the coupling means of each multiplexing device use a communication protocol identical to that used by the antennas and the receivers of the objects.
  • the outputs of the radio frequency signals of each multiplexing device essentially consist of an output of a first type intended to transmit radio frequency signals comprising a DC component, and an output of a second type. for transmitting radio frequency signals essentially comprising a non-continuous component.
  • each antenna connected to the output of the second type is supported on a modular antenna support.
  • each multiplexing device is supported on the antenna support of the antenna connected to the output of the second type of said multiplexing unit.
  • the antenna support forms a module of a modular assembly.
  • the activation of an output (S2) of a given multiplexing device with a rank greater than or equal to 2 corresponding to the position of said device relative to the processing means comprises the prior activation of a exit of a first type, device for transmitting radio frequency signals comprising a DC component, of a directly lower rank multiplexing device to which an input of said given multiplexing device is connected.
  • the multiplexing device 1 comprises a multiplexer 3 provided with a plurality of multiplexing outputs 5, a control unit 7 and coupling means 9 between the control unit and an input 11 of the radio frequency signals.
  • the multiplexing outputs 5 are connected to their respective outputs 12 of the radio frequency signals.
  • the multiplexing device 1 further comprises means 13 for recovering a DC component of the radio frequency signals connected between the input 11 of said radio frequency signals and a supply input 15 of the multiplexer 3, for supplying power to said multiplexer.
  • the multiplexing device 1 is intended to receive at its input 11 radio frequency signals comprising a DC component and a non-DC component, the latter comprising in particular the information to be transmitted between the input 11 and one of the outputs 12. continue also includes information representative of a control of the multiplexing device.
  • This part of the non-continuous component is called, in what follows, the control component of the radio frequency signals.
  • This control component may be representative of the address of the multiplexing device to be controlled and of the multiplexing output to be activated.
  • the control component is extracted from the radiofrequency signals by means of coupling means 9.
  • This control component is then sent to the control unit 7 of the multiplexer 3, to activate one of the multiplexing outputs 5 and to transmit the signals. radiofrequency through this output.
  • the DC component of the radio frequency signals is, for its part, used to feed the multiplexer 3 by means of recovery means 13 of said component connected to the supply input 15 of the multiplexer 3.
  • the coupling means 9 also enable to separate the control component from the DC component.
  • the coupling means are generally of electromagnetic type, magnetic field and / or electric field.
  • the multiplexer device 20 is connected through the input 11 and the outputs 12 using conductors of two-wire radio frequency signals.
  • the conductors of the radio frequency signals could be any other means available to those skilled in the art, for example cables consisting of shielded twisted pairs, coaxial cables, or any other signal conductor radio frequencies with controlled impedance.
  • the coupling means 9 comprise a first coil 21 connected to the input 11 of the radio frequency signals and a second coil 23 connected to the control unit 7, magnetically coupled to the first coil and thus producing an AC coupling transformer.
  • the first coil has also means 25 for removing the DC component of the radio frequency signals.
  • This control component is processed in the control unit 7 to activate one of the multiplexing outputs. 5 of the multiplexer 3 to transmit the radio frequency signals through this multiplexing output
  • the multiplexing device 10 comprises two outputs 12 of the radio frequency signals.
  • an output 27 of a first type is intended to transmit radio frequency signals comprising a DC component.
  • the output of the first type is intended to be connected to an antenna, to the input of another multiplexing device of the same type or to any impedance matching means.
  • the DC component transmitted by this output 27 of the first type is used to power this other multiplexing device.
  • the multiplexing device 20 comprises means for suppressing the DC component connected between the multiplexer 3 and the output 27 of the first type. These means of suppression 29 of the DC component thus make it possible to transmit, via this output 27 of the first type, only the non-continuous component of the radiofrequency signals.
  • the multiplexing device 20 also comprises means 31 for adding the DC component disposed between the DC component suppression means 29 and the first type output 27, these DC component adding means 31 being able to be activated when the output 27 of the first type is connected to the input of another multiplexing device.
  • the addition means 31 of the DC component therefore comprise an input of said DC component connected to the recovery means 13 of said DC component through a controlled switch 33.
  • the control input of this switch 33 is, as for it, connected to the control unit 7.
  • the control unit is designed to close the switch 33 in order to add a DC component to the output 27 of the first type when, on the one hand, the output of the first type 27 has been activated and that, on the other hand, said output 27 is connected to a multiplexer device of the same type.
  • This last condition can be verified by means of the control component which can also be representative of the nature of the device connected to the output of the first type 27.
  • an output 41 of a second type is intended to transmit radio frequency signals comprising essentially a non-continuous component, that is to say intended to be connected to an antenna only or any means impedance matching.
  • the multiplexing device 20 comprises means 43 for removing the DC component connected between the multiplexer 3 and the output 41 of the second type. These DC component suppression means 43 allow the transmission of the non-continuous component of the radio frequency signals to an antenna directly connected to this output 41 of the second type.
  • the embodiment of the figure 2 is a partial representation of a monitoring installation comprising a plurality of interconnected multiplexing devices, of which only one of them has been represented under the reference 20.
  • the monitoring installation shown in FIG. figure 2 further comprises processing means 51 for transmitting radio frequency signals between said processing means and antennas connected to outputs 12, 27, 41 of the multiplexing devices.
  • transmitting radio frequency signals it is generally meant to send a radiofrequency signal from the processing means 51 to one of said antennas and to receive a radiofrequency signal for controlling said antenna towards the processing means, this radio frequency control signal being representative of detecting an object provided with a receiver and disposed along said antenna.
  • the processing means comprise a base station 53.
  • this base station is a radio-identification type reader, or in English "Radio Frequency IDentification” or abbreviated "RFID”.
  • the processing means also comprise a source 55 of the DC component of the radio frequency signals which is superimposed on said radio frequency signals by means of adding means 57 of said DC component.
  • the means of processing can transmit to one of the antennas connected to an output of a multiplexing device, radiofrequency signals comprising a DC component for supplying all of the multiplexing devices disposed between said processing means and said antenna.
  • the non-continuous component of the radio frequency signals is, for its part, representative of the information to be transmitted, through said antennas, to objects provided with receivers arranged along said antennas.
  • This non-continuous component of the radio frequency signals also comprises a control component intended to control the multiplexing devices between the processing means 51 and the antennas.
  • this control component of the radio frequency signals can be representative, not only of the multiplexing output to be activated, but also of the nature of the device connected to said output.
  • the monitoring system shown comprises processing means 71 for transmitting radio frequency signals to antennas 73 via multiplexing devices 75 having three outputs.
  • the multiplexing devices 75 are interconnected by radio frequency signal conductors having a suitable impedance.
  • each multiplexing device 75 is associated with a rank J corresponding to the position of said device in said installation relative to the processing means.
  • each multiplexing device is associated with a rank J that can range from 1 to 4.
  • the input of a multiplexing device associated with a rank J greater than or equal to 2 is connected to an output of a multiplexing device of the directly lower rank I-1.
  • This output is often an output of the first type, that is to say intended to transmit radiofrequency signals comprising a DC component.
  • Antennas 73 and plugs 77 having a suitable impedance are connected to the remaining outputs. These plugs can also be called termination impedance.
  • These remaining outputs are often outputs of the second type, i.e., outputs for transmitting radio frequency signals devoid of DC component.
  • an output of the second type can obviously be connected to a plug 77 of suitable impedance.
  • each multiplexing device may be outputs of the first type or an association of at least one output of the first type and output of the second type.
  • the monitoring installation is implemented in an electrical panel comprising three rows of modular electrical devices 80 such as, for example, switches, switches or circuit breakers.
  • the monitoring installation includes processing means 81 for transmitting radio frequency signals to antennas 83 via multiplexing devices 85, 86, 87.
  • the antennas 83 are arranged in such a way that the different electrical devices are distributed along said antennas.
  • the inputs of the multiplexing devices 86, 87 are connected to an output of the first type 95 of the lower rank multiplexing devices, except for the input of the device of the input of the rank 1 multiplexing 85 which is connected. directly to the processing means 81.
  • the output of the first type 95 of the last row multiplexing device is, in turn, connected to a plug 77 of suitable impedance.
  • the antennas are connected to the outputs of the second type 97.
  • the radio frequency signals are transmitted to said electrical devices by the activation of one of these antennas at a time.
  • This transmission generally comprises sending a radiofrequency signal from the processing means 81 to one of said antennas and receiving a radiofrequency signal for controlling said antenna towards the processing means, this radio frequency control signal being representative of detecting electrical devices arranged along said antenna.
  • all the multiplexing outputs of the multiplexer device will be connected to suitable impedance loads, such as antennas or plugs, before powering up.
  • the output of the first type 95 of the last rank multiplexing device could be connected directly to an antenna which would constitute a load adapted to the output 12.
  • the plug 77 it would be possible to replace the plug 77 with a antenna 83 for covering a fourth row without adding a multiplexing device 20.
  • N multiplexing device of the type shown in FIG. figure 2 it is possible to cover a number N + 1 of rows of electrical appliances.
  • each multiplexing device 85, 86, 87 of the monitoring installation shown in FIG. figure 4 the coupling means 91 between the control unit 93 and the input of the radiofrequency signal use a communication medium of the same type as the antennas 83 and the unrepresented receivers of the electrical devices 80.
  • these coupling means 91 of FIG. each multiplexing device uses a communication protocol identical to that used by the antennas 83 and the receivers of the electrical apparatus 80. This makes it possible to simplify the installation by treating the control of the multiplexing devices in the same way as the transmission of information. between the processing means 81 and the various electrical devices 80.
  • the two outputs of the radio frequency signals comprise an output 95 of the first type intended to transmit radio frequency signals comprising a DC component and an output 97 of the second type intended to transmit radio frequency signals essentially comprising a non-continuous component.
  • the output 95 of each multiplexer device is connected to the input of a higher order multiplexing device.
  • the continuous component of the radio frequency signals is transmitted to the multiplexing device of higher order rank to feed the latter.
  • each multiplexing device and each antenna connected to the output 97 of the second type of said multiplexing device are supported on the same antenna support 107.
  • the antenna supports 107 of the multiplexing devices can be arranged on each row of apparatuses. electric and connected to each other by appropriate impedance radio frequency signal conductors. These antenna supports are thus in the form of modules of a modular set of monitoring.
  • control of multiplexing means comprises the activation of an output connected to an antenna of at least one multiplexing device of said multiplexing means by means of a control component of said radio frequency signals.
  • the activation of an output of a multiplexing device is performed iteratively so that the activation of an output of a given multiplexing device associated with a rank J greater than or equal to 2 comprises the activation prior to an output of the first type of a directly lower rank multiplexing device I-1 to which is connected an input of said given multiplexing device.
  • the monitoring methods represented on the Figures 5A and 5B are intended for the implementation of an installation of the type of that represented in figure 4 , that is to say having multiplexing devices provided with an output of the first type and an output of the second type.
  • the monitoring restarts on the antenna arranged on the output of the second type S2 (1) of the multiplexing device of rank 1.
  • the monitoring restarts on the antenna arranged on the output of the second type S2 (1) of the multiplexing device of rank 1.

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Abstract

The device (1) has a control unit (7) for activating a multiplexing output (5) of a multiplexer (3) through a radiofrequency signal control component. A coupling unit (9) is provided between the control unit and a radiofrequency signal input (11) to transmit the control component to the control unit. Radiofrequency signal outputs (12) comprise a transmission output for transmitting radiofrequency signals containing a direct current component to supply power to another multiplexing device connected to the transmission output. Independent claims are also included for the following: (1) an object monitoring installation comprising an antenna for transmitting radiofrequency signals (2) a method for monitoring objects.

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention relève du domaine des dispositifs de multiplexage destinés à être interconnectés dans une installation de surveillance pour transmettre des signaux radiofréquences entre des moyens de traitement et des objets équipés de récepteurs par l'entremise d'antennes.The invention relates to the field of multiplexing devices intended to be interconnected in a monitoring installation for transmitting radio frequency signals between processing means and objects equipped with receivers via antennas.

L'invention concerne en particulier un dispositif de multiplexage destiné à être interconnecté avec au moins un dispositif du même type pour transmettre des signaux radiofréquences entre des moyens de traitement et une pluralité d'antennes.The invention relates in particular to a multiplexing device intended to be interconnected with at least one device of the same type for transmitting radio frequency signals between processing means and a plurality of antennas.

L'invention concerne également une installation de surveillance pour surveiller des objets équipés de récepteurs, ladite installation comprenant :

  • une pluralité d'antennes le long desquelles sont disposés lesdits objets pour transmettre un rayonnement électromagnétique entre lesdites antennes et lesdits récepteurs,
  • des moyens de traitement pour transmettre des signaux radiofréquences entre lesdits moyens de traitement et lesdites antennes, et
  • des moyens de multiplexage connectés entre lesdits moyens de traitement et lesdites antennes pour sélectionner une antenne vers laquelle sont transmis lesdits signaux radiofréquences.
The invention also relates to a monitoring installation for monitoring objects equipped with receivers, said installation comprising:
  • a plurality of antennas along which said objects are arranged to transmit electromagnetic radiation between said antennas and said receivers,
  • processing means for transmitting radio frequency signals between said processing means and said antennas, and
  • multiplexing means connected between said processing means and said antennas for selecting an antenna to which said radiofrequency signals are transmitted.

L'invention concerne également une méthode de surveillance pour surveiller des objets équipés de récepteurs, ladite méthode comprenant :

  • la transmission de signaux radiofréquences entre des moyens de traitement et des antennes le long desquelles sont disposés lesdits objets,
  • la commande de moyens de multiplexage connectés entre lesdits moyens de traitement et lesdites antennes pour sélectionner une antenne vers laquelle sont transmis lesdits signaux radiofréquences, et
  • la transmission d'un rayonnement électromagnétique entre l'antenne sélectionnée et le récepteur d'au moins un objet disposé le long de ladite antenne,
The invention also relates to a monitoring method for monitoring objects equipped with receivers, said method comprising:
  • transmitting radio frequency signals between processing means and antennas along which said objects are arranged,
  • controlling multiplexing means connected between said processing means and said antennas for selecting an antenna to which said radio frequency signals are transmitted, and
  • transmitting electromagnetic radiation between the selected antenna and the receiver of at least one object disposed along said antenna,

ÉTAT DE LA TECHNIQUESTATE OF THE ART

La demande de brevet européen EP1788599 décrit un dispositif de surveillance d'un appareillage électrique comportant un transmetteur pourvu d'une pluralité d'émetteurs pour émettre un rayonnement électromagnétique vers les moyens de réception d'une pluralité d'appareils électriques, ledit dispositif pouvant inclure un ensemble électronique de traitement associé au dit transmetteur et d'un dispositif de multiplexage comprenant une entrée connectée à ledit ensemble électronique de traitement et des voies de sortie connectées aux dits émetteurs.The European patent application EP1788599 discloses a monitoring device of an electrical apparatus comprising a transmitter provided with a plurality of emitters for emitting electromagnetic radiation to the receiving means of a plurality of electrical apparatus, said apparatus possibly including an associated electronic processing unit said transmitter and a multiplexing device comprising an input connected to said electronic processing unit and output channels connected to said transmitters.

Un inconvénient de ce type de dispositif de surveillance est que le nombre de voies de sortie du dispositif de multiplexage doit être adapté en fonction du nombre d'émetteurs.A disadvantage of this type of monitoring device is that the number of output channels of the multiplexing device must be adapted according to the number of transmitters.

EXPOSÉ DE L'INVENTIONSTATEMENT OF THE INVENTION

L'invention vise à remédier aux inconvénients des dispositifs de multiplexage et des installations de surveillance de l'art antérieur en proposant un dispositif de multiplexage destiné à être interconnecté avec au moins un dispositif du même type pour transmettre des signaux radiofréquences entre des moyens de traitement et une pluralité d'antennes, ledit dispositif étant caractérisé en ce qu'il comporte :

  • un multiplexeur pourvu d'une pluralité de sorties de multiplexage,
  • une unité de commande permettant d'activer l'une des dites sorties grâce à une composante de commande desdits signaux radiofréquences, et
  • des moyens de couplage entre l'unité de commande et une entrée des signaux radiofréquences pour transmettre ladite composante de commande vers l'unité de commande.
The invention aims to remedy the disadvantages of the multiplexing devices and monitoring systems of the prior art by proposing a multiplexing device intended to be interconnected with at least one device of the same type for transmitting radio frequency signals between processing means. and a plurality of antennas, said device being characterized in that it comprises:
  • a multiplexer provided with a plurality of multiplexing outputs,
  • a control unit for activating one of said outputs through a control component of said radio frequency signals, and
  • coupling means between the control unit and an input of the radio frequency signals for transmitting said control component to the control unit.

De préférence, les moyens de couplage sont électromagnétiques.Preferably, the coupling means are electromagnetic.

Selon un mode de réalisation, le dispositif comporte une pluralité de sorties desdits signaux radiofréquences comprenant au moins une sortie d'un premier type destinée à transmettre des signaux radiofréquences comportant une composante continue. De préférence, la pluralité de sorties desdits signaux radiofréquences comprend au moins une sortie d'un second type destinée à transmettre des signaux radiofréquences comportant essentiellement une composante non continue.According to one embodiment, the device comprises a plurality of outputs of said radio frequency signals comprising at least one output of a first type intended to transmit radio frequency signals comprising a DC component. Preferably, the plurality of outputs of said radio frequency signals comprises at least one output of a second type intended to transmit radio frequency signals essentially comprising a non-continuous component.

Selon un mode de réalisation, le dispositif comporte des moyens de récupération d'une composante continue des signaux radiofréquences connectés à l'entrée desdits signaux pour récupérer ladite composante, lesdits moyens de récupération étant connectés à une entrée d'alimentation du multiplexeur pour alimenter électriquement ledit multiplexeur. De préférence, le dispositif comporte des moyens de suppression de la composante continue connectés entre le multiplexeur et chaque sortie dudit dispositif.According to one embodiment, the device comprises means for recovering a DC component of the radiofrequency signals connected to the input of said signals to recover said component, said retrieval means being connected to a supply input of the multiplexer for powering electrically. said multiplexer. Preferably, the device comprises means for suppressing the DC component connected between the multiplexer and each output of said device.

De préférence, le dispositif comporte des moyens d'ajout de la composante continue connectés entre les moyens de suppression de la composante continue et la au moins une sortie du premier type, lesdits moyens d'ajout étant conçus pour ajouter ladite composante continue lorsque ladite sortie est activée et lorsque ladite sortie est connectée à un dispositif multiplexeur du même type. Avantageusement, les moyens d'ajout de la composante continue comporte une entrée de ladite composante continue connectée aux moyens de récupération de la composante continue.Preferably, the device comprises means for adding the DC component connected between the means for suppressing the DC component and the at least one output of the first type, said adding means being designed to add said DC component when said output is activated and when said output is connected to a multiplexer device of the same type. Advantageously, the means for adding the DC component comprises an input of said DC component connected to the means for recovering the DC component.

De préférence, le dispositif comporte un interrupteur commandé connecté entre l'entrée de la composante continue des moyens d'ajout de la composante continue et les moyens de récupération de ladite composante continue, ledit interrupteur comportant une entrée de commande connectée à l'unité de commande.Preferably, the device comprises a controlled switch connected between the input of the DC component of the DC component adding means and the DC component recovery means, said switch having a control input connected to the DC unit. ordered.

L'invention concerne également une installation de surveillance pour surveiller des objets équipés de récepteurs, ladite installation comprenant :

  • une pluralité d'antennes le long desquelles sont disposés lesdits objets pour transmettre un rayonnement électromagnétique entre lesdites antennes et lesdits récepteurs,
  • des moyens de traitement pour transmettre des signaux radiofréquences entre lesdits moyens de traitement et lesdites antennes, et
  • des moyens de multiplexage connectés entre lesdits moyens de traitement et lesdites antennes pour sélectionner une antenne vers laquelle sont transmis lesdits signaux radiofréquences,
ladite installation étant caractérisée en ce que lesdits moyens de multiplexage comprennent une pluralité de dispositif de multiplexage interconnectées par des conducteurs de signaux radiofréquences comportant une impédance adaptée, chaque dispositif de multiplexage étant un dispositif tel que décrit précédemment, lesdits dispositifs étant commandés grâce à une composante de commande desdits signaux radiofréquences.The invention also relates to a monitoring installation for monitoring objects equipped with receivers, said installation comprising:
  • a plurality of antennas along which said objects are arranged to transmit electromagnetic radiation between said antennas and said receivers,
  • processing means for transmitting radio frequency signals between said processing means and said antennas, and
  • multiplexing means connected between said processing means and said antennas for selecting an antenna to which said radiofrequency signals are transmitted,
said installation being characterized in that said multiplexing means comprise a plurality of multiplexing devices interconnected by radio frequency signal conductors having a suitable impedance, each multiplexing device being a device as described above, said devices being controlled by means of a component controlling said radio frequency signals.

De préférence, chaque dispositif de multiplexage étant associé à un rang correspondant à la position dudit dispositif dans ladite installation par rapport aux moyens de traitement, chaque dispositif de multiplexage comportant une entrée dudit signal radiofréquence et une pluralité de sorties dudit signal radiofréquence, l'entrée d'un dispositif de multiplexage associé à un rang supérieur ou égal à 2 étant connectée à une sortie d'un premier type destinée à transmettre des signaux radiofréquence comportant une composante continue d'un dispositif de multiplexage du rang directement inférieur, lesdites antennes étant connectées à au moins une partie des sorties restantes.Preferably, each multiplexing device being associated with a rank corresponding to the position of said device in said installation with respect to the processing means, each multiplexing device comprising an input of said radio frequency signal and a plurality of outputs of said radio frequency signal, the input a multiplexing device associated with a rank greater than or equal to 2 being connected to an output of a first type intended to transmit radiofrequency signals comprising a DC component of a multiplexing device of the directly lower rank, said antennas being connected at least a portion of the remaining outputs.

De préférence, l'installation comporte des bouchons d'impédance adaptée, lesdits bouchons et les antennes étant connectés à l'autre partie des sorties restantes sur lesquelles aucune antenne n'est connectée.Preferably, the installation comprises suitable impedance plugs, said plugs and antennas being connected to the other part of the remaining outputs on which no antenna is connected.

De préférence, les moyens de couplage entre l'unité de commande et l'entrée du signal radiofréquence utilisent un support de communication du même type que les antennes et les récepteurs des objets. Avantageusement, les moyens de couplage de chaque dispositif de multiplexage utilisent un protocole de communication identique à celui utilisé par les antennes et les récepteurs des objets.Preferably, the coupling means between the control unit and the input of the radiofrequency signal use a communication medium of the same type as the antennas and the antennas. receivers of objects. Advantageously, the coupling means of each multiplexing device use a communication protocol identical to that used by the antennas and the receivers of the objects.

Selon un mode de réalisation de l'installation, les sorties des signaux radiofréquences de chaque dispositif de multiplexage sont essentiellement constituées par une sortie d'un premier type destinée à transmettre des signaux radiofréquences comportant une composante continue, et une sortie d'un second type destinée à transmettre des signaux radiofréquences comportant essentiellement une composante non continue. De préférence, chaque antenne connectée à la sortie du second type est supportée sur un support d'antenne modulaire. Avantageusement, chaque dispositif de multiplexage est supporté sur le support d'antenne de l'antenne connectée à la sortie du second type de ladite unité de multiplexage. Avantageusement, le support d'antenne forme un module d'un ensemble modulaire.According to one embodiment of the installation, the outputs of the radio frequency signals of each multiplexing device essentially consist of an output of a first type intended to transmit radio frequency signals comprising a DC component, and an output of a second type. for transmitting radio frequency signals essentially comprising a non-continuous component. Preferably, each antenna connected to the output of the second type is supported on a modular antenna support. Advantageously, each multiplexing device is supported on the antenna support of the antenna connected to the output of the second type of said multiplexing unit. Advantageously, the antenna support forms a module of a modular assembly.

L'invention concerne également une méthode de surveillance pour surveiller des objets équipés de récepteurs, ladite méthode comprenant :

  • la transmission de signaux radiofréquences entre des moyens de traitement et des antennes le long desquelles sont disposés lesdits objets,
  • la commande de moyens de multiplexage connectés entre lesdits moyens de traitement et lesdites antennes pour sélectionner une antenne vers laquelle sont transmis lesdits signaux radiofréquences, et
  • la transmission d'un rayonnement électromagnétique entre l'antenne sélectionnée et le récepteur d'au moins un objet disposé le long de ladite antenne,
ladite méthode étant caractérisée en ce que la commande de moyens de multiplexage comprend l'activation d'une sortie connectée à une antenne d'au moins un dispositif de multiplexage desdits moyens de multiplexage à l'aide d'une composante de commande desdits signaux radiofréquences.The invention also relates to a monitoring method for monitoring objects equipped with receivers, said method comprising:
  • transmitting radio frequency signals between processing means and antennas along which said objects are arranged,
  • controlling multiplexing means connected between said processing means and said antennas for selecting an antenna to which said radio frequency signals are transmitted, and
  • transmitting electromagnetic radiation between the selected antenna and the receiver of at least one object disposed along said antenna,
said method being characterized in that the control of the multiplexing means comprises the activation of an output connected to an antenna of at least one multiplexing device of said multiplexing means by means of a control component of said radio frequency signals .

De préférence, l'activation d'une sortie (S2) d'un dispositif de multiplexage donné associé à un rang supérieur ou égal à 2 correspondant à la position dudit dispositif par rapport aux moyens de traitement, comporte l'activation préalable d'une sortie d'un premier type, destinée à transmettre des signaux radiofréquences comportant une composante continue, d'un dispositif de multiplexage du rang directement inférieur à laquelle est connectée une entrée dudit dispositif de multiplexage donné.Preferably, the activation of an output (S2) of a given multiplexing device with a rank greater than or equal to 2 corresponding to the position of said device relative to the processing means, comprises the prior activation of a exit of a first type, device for transmitting radio frequency signals comprising a DC component, of a directly lower rank multiplexing device to which an input of said given multiplexing device is connected.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui suit de modes particuliers de réalisation de l'invention, donnés à titre d'exemples non limitatifs, et représentés dans les figures annexées.

  • La figure 1 est une représentation schématique d'un dispositif multiplexeur selon l'invention.
  • La figure 2 est une représentation partielle d'une installation de surveillance selon l'invention dans laquelle seulement un dispositif multiplexeur à deux voies est représenté.
  • La figure 3 est une représentation schématique d'une installation de surveillance comportant des dispositifs multiplexeurs à trois voies interconnectés.
  • La figure 4 est une représentation d'une installation de surveillance utilisée pour surveiller un appareillage électrique.
  • Les figures 5A et 5B sont des algorithmes de méthode de surveillance pour mettre en oeuvre l'installation de surveillance de la figure 4.
Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention, given by way of non-limiting examples, and shown in the accompanying figures.
  • The figure 1 is a schematic representation of a multiplexer device according to the invention.
  • The figure 2 is a partial representation of a monitoring installation according to the invention in which only a two-way multiplexer device is shown.
  • The figure 3 is a schematic representation of a monitoring facility with interconnected three-way multiplexer devices.
  • The figure 4 is a representation of a monitoring installation used to monitor electrical equipment.
  • The Figures 5A and 5B are monitoring method algorithms to implement the monitoring facility the figure 4 .

DESCRIPTION DETAILLEE D'UN MODE DE RÉALISATIONDETAILED DESCRIPTION OF AN EMBODIMENT

En référence à la figure 1, le dispositif de multiplexage 1 comporte un multiplexeur 3 pourvu d'une pluralité de sorties de multiplexage 5, une unité de commande 7 et des moyens de couplage 9 entre l'unité de commande et une entrée 11 des signaux radiofréquences. Les sorties de multiplexage 5 sont connectées à leur sorties 12 respectives des signaux radiofréquences. Le dispositif de multiplexage 1 comporte, en outre, des moyens de récupération 13 d'une composante continue des signaux radiofréquences connectés entre l'entrée 11 desdits signaux radiofréquences et une entrée d'alimentation 15 du multiplexeur 3, pour alimenter électriquement ledit multiplexeur.With reference to the figure 1 , the multiplexing device 1 comprises a multiplexer 3 provided with a plurality of multiplexing outputs 5, a control unit 7 and coupling means 9 between the control unit and an input 11 of the radio frequency signals. The multiplexing outputs 5 are connected to their respective outputs 12 of the radio frequency signals. The multiplexing device 1 further comprises means 13 for recovering a DC component of the radio frequency signals connected between the input 11 of said radio frequency signals and a supply input 15 of the multiplexer 3, for supplying power to said multiplexer.

Le dispositif de multiplexage 1 est destiné à recevoir sur son entrée 11 des signaux radiofréquences comportant une composante continue et une composante non continue, cette dernière comportant notamment les informations à transmettre entre l'entrée 11 et l'une des sorties 12. La composante non continue comporte également des informations représentatives d'une commande du dispositif de multiplexage. Cette partie de la composante non continue est appelée, dans ce qui suit, composante de commande des signaux radiofréquences. Cette composante de commande peut être représentative de l'adresse du dispositif de multiplexage à commander et de la sortie de multiplexage à activer. La composante de commande est extraite des signaux radiofréquences grâce à des moyens de couplage 9. Cette composante de commande est ensuite envoyée à l'unité de commande 7 du multiplexeur 3, pour activer l'une des sorties de multiplexage 5 et pour transmettre les signaux radiofréquences par l'entremise de cette sortie. La composante continue des signaux radiofréquences est, quant à elle, utilisée pour alimenter le multiplexeur 3 par l'entremise de moyens de récupération 13 de ladite composante connectés à l'entrée d'alimentation 15 du multiplexeur 3. Les moyens de couplage 9 permettent également de séparer la composante de commande de la composante continue.The multiplexing device 1 is intended to receive at its input 11 radio frequency signals comprising a DC component and a non-DC component, the latter comprising in particular the information to be transmitted between the input 11 and one of the outputs 12. continue also includes information representative of a control of the multiplexing device. This part of the non-continuous component is called, in what follows, the control component of the radio frequency signals. This control component may be representative of the address of the multiplexing device to be controlled and of the multiplexing output to be activated. The control component is extracted from the radiofrequency signals by means of coupling means 9. This control component is then sent to the control unit 7 of the multiplexer 3, to activate one of the multiplexing outputs 5 and to transmit the signals. radiofrequency through this output. The DC component of the radio frequency signals is, for its part, used to feed the multiplexer 3 by means of recovery means 13 of said component connected to the supply input 15 of the multiplexer 3. The coupling means 9 also enable to separate the control component from the DC component.

Les moyens de couplage sont généralement de type électromagnétique, par champ magnétique et/ou par champ électrique.The coupling means are generally of electromagnetic type, magnetic field and / or electric field.

Dans le mode de réalisation représenté à la figure 2, on retrouve la plupart des éléments représentés à la figure 1 sous les mêmes références numériques. Le dispositif de multiplexage 20 est connectés par l'entremise de l'entrée 11 et des sorties 12 à l'aide de conducteurs des signaux radiofréquences bifilaires. Dans d'autres modes de réalisation non représentés, les conducteurs des signaux radiofréquences pourraient être tout autre moyen à la disposition de l'homme du métier, par exemple des câbles constitués de paires torsadées blindées, des câbles coaxiaux, ou tout autre conducteur de signaux radiofréquences présentant une impédance contrôlée.In the embodiment shown at figure 2 , we find most of the elements represented in the figure 1 under the same numerical references. The multiplexer device 20 is connected through the input 11 and the outputs 12 using conductors of two-wire radio frequency signals. In other embodiments not shown, the conductors of the radio frequency signals could be any other means available to those skilled in the art, for example cables consisting of shielded twisted pairs, coaxial cables, or any other signal conductor radio frequencies with controlled impedance.

Comme cela est visible à la figure 2, les moyens de couplage 9 comportent une première bobine 21 connectée à l'entrée 11 des signaux radiofréquences et une seconde bobine 23 connectée à l'unité de commande 7, couplée magnétiquement à la première bobine et réalisant ainsi un transformateur de couplage alternatif. La première bobine comporte également des moyens de suppression 25 de la composante continue des signaux radiofréquences. De cette façon, la composante non continue des signaux radiofréquence, incluant la composante de commande, est envoyée dans l'unité de commande 7. Cette composante de commande est traitée dans l'unité de commande 7 pour activer l'une des sorties de multiplexage 5 du multiplexeur 3 afin de transmettre les signaux radiofréquences par l'entremise de cette sortie de multiplexageAs can be seen in figure 2 , the coupling means 9 comprise a first coil 21 connected to the input 11 of the radio frequency signals and a second coil 23 connected to the control unit 7, magnetically coupled to the first coil and thus producing an AC coupling transformer. The first coil has also means 25 for removing the DC component of the radio frequency signals. In this way, the non-continuous component of the radio frequency signals, including the control component, is sent into the control unit 7. This control component is processed in the control unit 7 to activate one of the multiplexing outputs. 5 of the multiplexer 3 to transmit the radio frequency signals through this multiplexing output

Dans le mode de réalisation représenté à la figure 2, le dispositif de multiplexage 10 comporte deux sorties 12 des signaux radiofréquences. Parmi ces sorties 12, une sortie 27 d'un premier type est destinée à transmettre des signaux radiofréquences comportant une composante continu. En d'autres termes, la sortie du premier type est destinée à être connectée à une antenne, à l'entrée d'un autre dispositif de multiplexage du même type ou à tout moyen d'adaptation d'impédance. Dans le deuxième cas, la composante continue transmise par cette sortie 27 du premier type est utilisée pour alimenter cet autre dispositif de multiplexage. Le dispositif de multiplexage 20 comporte des moyens de suppression 29 de la composante continue connectés entre le multiplexeur 3 et la sortie 27 du premier type. Ces moyens de suppression 29 de la composante continue permettent ainsi de transmettre, par l'entremise de cette sortie 27 du premier type, seulement la composante non continue des signaux radiofréquences. Ainsi, il est possible de connecter directement une antenne sur cette sortie 27 du premier type. Le dispositif de multiplexage 20 comporte également des moyens d'ajout 31 de la composante continue disposés entre les moyens de suppression 29 de la composante continue et la sortie du premier type 27, ces moyens d'ajout 31 de la composante continue pouvant être activés lorsque la sortie 27 du premier type est connectée à l'entrée d'un autre dispositif de multiplexage. Les moyens d'ajout 31 de la composante continue comportent donc une entrée de ladite composante continue connectée aux moyens de récupération 13 de ladite composante continue par l'entremise d'un interrupteur commandé 33. L'entrée de commande de cet interrupteur 33 est, quant à elle, connectée à l'unité de commande 7. L'unité de commande est conçue de façon à fermer l'interrupteur 33 afin d'ajouter une composante continue sur la sortie 27 du premier type lorsque, d'une part, la sortie du premier type 27 a été activée et que, d'autre part, ladite sortie 27 est connectée à un dispositif multiplexeur du même type. Cette dernière condition peut être vérifiée à l'aide de la composante de commande qui peut également être représentative de la nature du dispositif connecté sur la sortie du premier type 27. De cette façon, lorsque la sortie 27 du premier type est connectée à l'entrée d'un dispositif de multiplexage de même type, il est possible de transmettre, non seulement la composante non continue des signaux radiofréquences, mais aussi une composante continue desdits signaux radiofréquences qui est utilisée pour alimenter cet autre dispositif de multiplexage.In the embodiment shown at figure 2 , the multiplexing device 10 comprises two outputs 12 of the radio frequency signals. Among these outputs 12, an output 27 of a first type is intended to transmit radio frequency signals comprising a DC component. In other words, the output of the first type is intended to be connected to an antenna, to the input of another multiplexing device of the same type or to any impedance matching means. In the second case, the DC component transmitted by this output 27 of the first type is used to power this other multiplexing device. The multiplexing device 20 comprises means for suppressing the DC component connected between the multiplexer 3 and the output 27 of the first type. These means of suppression 29 of the DC component thus make it possible to transmit, via this output 27 of the first type, only the non-continuous component of the radiofrequency signals. Thus, it is possible to directly connect an antenna to this output 27 of the first type. The multiplexing device 20 also comprises means 31 for adding the DC component disposed between the DC component suppression means 29 and the first type output 27, these DC component adding means 31 being able to be activated when the output 27 of the first type is connected to the input of another multiplexing device. The addition means 31 of the DC component therefore comprise an input of said DC component connected to the recovery means 13 of said DC component through a controlled switch 33. The control input of this switch 33 is, as for it, connected to the control unit 7. The control unit is designed to close the switch 33 in order to add a DC component to the output 27 of the first type when, on the one hand, the output of the first type 27 has been activated and that, on the other hand, said output 27 is connected to a multiplexer device of the same type. This last condition can be verified by means of the control component which can also be representative of the nature of the device connected to the output of the first type 27. way, when the output 27 of the first type is connected to the input of a multiplexing device of the same type, it is possible to transmit, not only the non-continuous component of the radio frequency signals, but also a continuous component of said radio frequency signals which is used to power this other multiplexing device.

Parmi les sorties 12 du dispositif de multiplexage 20, une sortie 41 d'un second type est destinée à transmettre des signaux radiofréquences comportant essentiellement une composante non continue, c'est-à-dire destinée à être connectée à une antenne uniquement ou tout moyen d'adaptation d'impédance. De la même façon que pour la sortie 27 du premier type, le dispositif de multiplexage 20 comporte des moyens de suppression 43 de la composante continue connectés entre le multiplexeur 3 et la sortie 41 du second type. Ces moyens de suppression 43 de la composante continue permettent la transmission de la composante non continue des signaux radiofréquences vers une antenne directement connectée sur cette sortie 41 du second type.Among the outputs 12 of the multiplexing device 20, an output 41 of a second type is intended to transmit radio frequency signals comprising essentially a non-continuous component, that is to say intended to be connected to an antenna only or any means impedance matching. In the same way as for the output 27 of the first type, the multiplexing device 20 comprises means 43 for removing the DC component connected between the multiplexer 3 and the output 41 of the second type. These DC component suppression means 43 allow the transmission of the non-continuous component of the radio frequency signals to an antenna directly connected to this output 41 of the second type.

Le mode de réalisation de la figure 2 est une représentation partielle d'une installation de surveillance comportant une pluralité de dispositifs de multiplexage interconnectés, dont seulement l'un d'entre eux a été représenté sous la référence 20. L'installation de surveillance représentée à la figure 2 comporte, en outre, des moyens de traitement 51 pour transmettre des signaux radiofréquences entre lesdits moyens de traitement et des antennes connectées sur des sorties 12, 27, 41 des dispositifs de multiplexage. Par transmettre des signaux radiofréquences, on entend généralement envoyer un signal radiofréquence des moyens de traitement 51 vers l'une des dites antennes et recevoir un signal radiofréquence de contrôle de ladite antenne vers les moyens de traitement, ce signal radiofréquence de contrôle pouvant être représentatif de la détection d'un objet pourvu d'un récepteur et disposé le long de ladite antenne.The embodiment of the figure 2 is a partial representation of a monitoring installation comprising a plurality of interconnected multiplexing devices, of which only one of them has been represented under the reference 20. The monitoring installation shown in FIG. figure 2 further comprises processing means 51 for transmitting radio frequency signals between said processing means and antennas connected to outputs 12, 27, 41 of the multiplexing devices. By transmitting radio frequency signals, it is generally meant to send a radiofrequency signal from the processing means 51 to one of said antennas and to receive a radiofrequency signal for controlling said antenna towards the processing means, this radio frequency control signal being representative of detecting an object provided with a receiver and disposed along said antenna.

Dans le mode de réalisation représenté à la figure 2, les moyens de traitement comprennent une station de base 53. Avantageusement, cette station de base est un lecteur de type radio-identification, ou en anglais « Radio Frequency IDentification », ou en abrégé « RFID ». Les moyens de traitement comportent également une source 55 de la composante continue des signaux radiofréquences qui est superposée aux dits signaux radiofréquences à l'aide de moyens d'ajout 57 de ladite composante continue. De cette façon, les moyens de traitement peuvent transmettre vers l'une des antennes connectées sur une sortie d'un dispositif de multiplexage, des signaux radiofréquences comportant une composante continue servant à alimenter l'ensemble des dispositifs de multiplexage disposés entre lesdits moyens de traitement et ladite antenne. La composante non continue des signaux radiofréquences est, quant à elle, représentative des informations à transmettre, par l'entremise des dites antennes, aux objets pourvus de récepteurs disposés le long des dites antennes. Cette composante non continue des signaux radiofréquences comporte également une composante de commande destinée à commander les dispositifs de multiplexages entre les moyens de traitement 51 et les antennes. Comme cela a été décrit précédemment, cette composante de commande des signaux radiofréquences peut être représentative, non seulement de la sortie de multiplexage à activer, mais également de la nature du dispositif connecté sur ladite sortie.In the embodiment shown at figure 2 , the processing means comprise a base station 53. Advantageously, this base station is a radio-identification type reader, or in English "Radio Frequency IDentification" or abbreviated "RFID". The processing means also comprise a source 55 of the DC component of the radio frequency signals which is superimposed on said radio frequency signals by means of adding means 57 of said DC component. In this way, the means of processing can transmit to one of the antennas connected to an output of a multiplexing device, radiofrequency signals comprising a DC component for supplying all of the multiplexing devices disposed between said processing means and said antenna. The non-continuous component of the radio frequency signals is, for its part, representative of the information to be transmitted, through said antennas, to objects provided with receivers arranged along said antennas. This non-continuous component of the radio frequency signals also comprises a control component intended to control the multiplexing devices between the processing means 51 and the antennas. As previously described, this control component of the radio frequency signals can be representative, not only of the multiplexing output to be activated, but also of the nature of the device connected to said output.

En référence à la figure 3, l'installation de surveillance représentée comporte des moyens de traitement 71 destinés à transmettre des signaux radiofréquences vers des antennes 73 par l'entremise de dispositifs de multiplexage 75 présentant trois sorties. Les dispositifs de multiplexage 75 sont interconnectés par des conducteurs de signaux radiofréquences comportant une impédance adaptée.With reference to the figure 3 , the monitoring system shown comprises processing means 71 for transmitting radio frequency signals to antennas 73 via multiplexing devices 75 having three outputs. The multiplexing devices 75 are interconnected by radio frequency signal conductors having a suitable impedance.

Dans le mode de réalisation représentée à la figure 3, chaque dispositif de multiplexage 75 est associé à un rang J correspondant à la position dudit dispositif dans ladite installation par rapport aux moyens de traitement. En l'occurrence, chaque dispositif de multiplexage est associé à un rang J pouvant aller de 1 à 4. Comme cela est visible sur la figure 3, l'entrée d'un dispositif de multiplexage associé à un rang J supérieur ou égal à 2 est connectée à une sortie d'un dispositif de multiplexage du rang directement inférieur I-1. Cette sortie est souvent une sortie du premier type, c'est-à-dire destinée à transmettre des signaux radiofréquences comportant une composante continue. Les antennes 73 et des bouchons 77 présentant une impédance adaptée sont connectés aux sorties restantes. Ces bouchons peuvent également être appelés impédance de terminaison. Ces sorties restantes sont souvent des sorties du second type, c'est-à-dire des sorties destinées à transmettre des signaux radiofréquences dépourvus de composante continue. A la place d'une antenne, une sortie du second type peut évidemment être connectée à un bouchon 77 d'impédance adaptée.In the embodiment shown in figure 3 each multiplexing device 75 is associated with a rank J corresponding to the position of said device in said installation relative to the processing means. In this case, each multiplexing device is associated with a rank J that can range from 1 to 4. As can be seen on the figure 3 , the input of a multiplexing device associated with a rank J greater than or equal to 2 is connected to an output of a multiplexing device of the directly lower rank I-1. This output is often an output of the first type, that is to say intended to transmit radiofrequency signals comprising a DC component. Antennas 73 and plugs 77 having a suitable impedance are connected to the remaining outputs. These plugs can also be called termination impedance. These remaining outputs are often outputs of the second type, i.e., outputs for transmitting radio frequency signals devoid of DC component. Instead of an antenna, an output of the second type can obviously be connected to a plug 77 of suitable impedance.

Dans d'autres modes de réalisation non représentés, il est possible d'associer des dispositifs de multiplexage comportant un nombre de sorties différents. Les sorties de chaque dispositif de multiplexage peuvent être des sorties du premier type ou bien une association d'au moins une sortie du premier type et de sortie du second type.In other embodiments not shown, it is possible to associate multiplexing devices having a number of different outputs. The outputs of each multiplexing device may be outputs of the first type or an association of at least one output of the first type and output of the second type.

Dans le mode de réalisation représenté à la figure 4, l'installation de surveillance est mise en oeuvre dans un tableau électrique comportant trois rangées d'appareils électriques modulaires 80 tels que, par exemple, des commutateurs, des interrupteurs ou des disjoncteurs. L'installation de surveillance comporte des moyens de traitement 81 destinés à transmettre des signaux radiofréquences vers des antennes 83 par l'entremise de dispositifs de multiplexage 85, 86, 87. Les antennes 83 sont disposées de façon à ce que les différents appareils électriques soient répartis le long des dites antennes. Les entrées des dispositifs de multiplexage 86, 87 sont connectées à une sortie du premier type 95 des dispositifs de multiplexage de rangs directement inférieurs, à l'exception de l'entrée du dispositif de l'entrée du multiplexage 85 de rang 1 qui est connectée directement aux moyens de traitement 81. Dans le mode de réalisation représentée à la figure 4, la sortie du premier type 95 du dispositif de multiplexage de dernier rang est, quant à elle, connectée à un bouchon 77 d'impédance adaptée. Les antennes sont connectées sur les sorties du second type 97. De cette façon, les signaux radiofréquences sont transmis vers lesdits appareils électriques par l'activation d'une de ces antennes à la fois. Cette transmission comprend généralement l'envoi d'un signal radiofréquence des moyens de traitement 81 vers l'une des dites antennes et la réception un signal radiofréquence de contrôle de ladite antenne vers les moyens de traitement, ce signal radiofréquence de contrôle pouvant être représentatif de la détection des appareils électriques disposés le long de ladite antenne.In the embodiment shown at figure 4 , the monitoring installation is implemented in an electrical panel comprising three rows of modular electrical devices 80 such as, for example, switches, switches or circuit breakers. The monitoring installation includes processing means 81 for transmitting radio frequency signals to antennas 83 via multiplexing devices 85, 86, 87. The antennas 83 are arranged in such a way that the different electrical devices are distributed along said antennas. The inputs of the multiplexing devices 86, 87 are connected to an output of the first type 95 of the lower rank multiplexing devices, except for the input of the device of the input of the rank 1 multiplexing 85 which is connected. directly to the processing means 81. In the embodiment shown in FIG. figure 4 , the output of the first type 95 of the last row multiplexing device is, in turn, connected to a plug 77 of suitable impedance. The antennas are connected to the outputs of the second type 97. In this way, the radio frequency signals are transmitted to said electrical devices by the activation of one of these antennas at a time. This transmission generally comprises sending a radiofrequency signal from the processing means 81 to one of said antennas and receiving a radiofrequency signal for controlling said antenna towards the processing means, this radio frequency control signal being representative of detecting electrical devices arranged along said antenna.

Avantageusement, l'ensemble des sorties de multiplexage du dispositif multiplexeur seront connectées à des charges d'impédance adaptée, telles que des antennes ou des bouchons, avant la mise sous tension.Advantageously, all the multiplexing outputs of the multiplexer device will be connected to suitable impedance loads, such as antennas or plugs, before powering up.

Dans d'autres modes de réalisation non représentées, la sortie du premier type 95 du dispositif de multiplexage de dernier rang pourrait être connectée directement à une antenne qui constituerait une charge adaptée à la sortie 12. Ainsi, par rapport au mode de réalisation représenté à la figure 4, il serait possible de remplacer le bouchon 77 par une antenne 83 permettant de couvrir une quatrième rangée sans rajouter de dispositif de multiplexage 20. En d'autres termes, en utilisant un nombre N dispositif de multiplexage du type de celui représenté à la figure 2, il est possible de couvrir un nombre N+1 de rangées d'appareils électriques.In other embodiments not shown, the output of the first type 95 of the last rank multiplexing device could be connected directly to an antenna which would constitute a load adapted to the output 12. Thus, compared to the embodiment shown in FIG. the figure 4 , it would be possible to replace the plug 77 with a antenna 83 for covering a fourth row without adding a multiplexing device 20. In other words, using a number N multiplexing device of the type shown in FIG. figure 2 , it is possible to cover a number N + 1 of rows of electrical appliances.

Dans chaque dispositif de multiplexage 85, 86, 87 de l'installation de surveillance représentée à la figure 4, les moyens de couplage 91 entre l'unité de commande 93 et l'entrée du signal radiofréquence utilisent un support de communication du même type que les antennes 83 et les récepteurs non représentés des appareils électriques 80. Avantageusement, ces moyens de couplage 91 de chaque dispositif de multiplexage utilisent un protocole de communication identique à celui utilisé par les antennes 83 et les récepteurs des appareils électriques 80. Ceci permet de simplifier l'installation en traitant la commande des dispositifs de multiplexage de la même façon que la transmission d'informations entre les moyens de traitement 81 et les différents appareils électriques 80.In each multiplexing device 85, 86, 87 of the monitoring installation shown in FIG. figure 4 , the coupling means 91 between the control unit 93 and the input of the radiofrequency signal use a communication medium of the same type as the antennas 83 and the unrepresented receivers of the electrical devices 80. Advantageously, these coupling means 91 of FIG. each multiplexing device uses a communication protocol identical to that used by the antennas 83 and the receivers of the electrical apparatus 80. This makes it possible to simplify the installation by treating the control of the multiplexing devices in the same way as the transmission of information. between the processing means 81 and the various electrical devices 80.

Dans chaque dispositif de multiplexage 85, 86, 87 de l'installation de surveillance représentée à la figure 4, les deux sorties des signaux radiofréquences comportent une sortie 95 du premier type destinée à transmettre des signaux radiofréquences comportant une composante continue et une sortie 97 du second type destinée à transmettre des signaux radiofréquences comportant essentiellement une composante non continue. La sortie 95 de chaque dispositif de multiplexage est connectée à l'entrée d'un dispositif de multiplexage de rang directement supérieur. Ainsi la composante continue des signaux radiofréquences est transmise au dispositif de multiplexage de rang directement supérieur pour alimenter ce dernier.In each multiplexing device 85, 86, 87 of the monitoring installation shown in FIG. figure 4 , the two outputs of the radio frequency signals comprise an output 95 of the first type intended to transmit radio frequency signals comprising a DC component and an output 97 of the second type intended to transmit radio frequency signals essentially comprising a non-continuous component. The output 95 of each multiplexer device is connected to the input of a higher order multiplexing device. Thus the continuous component of the radio frequency signals is transmitted to the multiplexing device of higher order rank to feed the latter.

Dans l'installation de surveillance représentée à la figure 4, chaque dispositif de multiplexage et chaque antenne connectée à la sortie 97 du second type dudit dispositif de multiplexage sont supportés sur un même support d'antenne 107. Les supports d'antenne 107 des dispositifs de multiplexage peuvent être disposés sur chaque rangée d'appareils électriques et connectées entre eux par des conducteurs de signaux radiofréquences d'impédance adaptée. Ces supports d'antenne se présentent ainsi sous la forme de modules d'un ensemble modulaire de surveillance.In the monitoring installation represented in figure 4 each multiplexing device and each antenna connected to the output 97 of the second type of said multiplexing device are supported on the same antenna support 107. The antenna supports 107 of the multiplexing devices can be arranged on each row of apparatuses. electric and connected to each other by appropriate impedance radio frequency signal conductors. These antenna supports are thus in the form of modules of a modular set of monitoring.

En référence aux figures 5A et 5B, l'installation de surveillance décrite précédemment permet de surveiller des objets équipés de récepteurs et peut être mise en oeuvre conformément à l'algorithme représenté. Ainsi, la méthode de surveillance comprend :

  • la transmission 111 de signaux radiofréquences entre des moyens de traitement et des antennes le long desquelles sont disposés les objets à surveiller,
  • la commande de moyens de multiplexage connectés entre lesdits moyens de traitement et lesdites antennes pour sélectionner une antenne vers laquelle sont transmis lesdits signaux radiofréquences, et
  • la transmission 115 d'un rayonnement électromagnétique entre l'antenne sélectionnée et le récepteur d'au moins un objet disposé le long de ladite antenne.
With reference to Figures 5A and 5B , the monitoring installation described above allows to monitor objects equipped with receivers and can be implemented according to the algorithm shown. Thus, the monitoring method includes:
  • the transmission 111 of radiofrequency signals between processing means and antennas along which the objects to be monitored are arranged,
  • controlling multiplexing means connected between said processing means and said antennas for selecting an antenna to which said radio frequency signals are transmitted, and
  • the transmission 115 of electromagnetic radiation between the selected antenna and the receiver of at least one object disposed along said antenna.

Plus précisément, la commande de moyens de multiplexage comprend l'activation d'une sortie connectée à une antenne d'au moins un dispositif de multiplexage desdits moyens de multiplexage à l'aide d'une composante de commande desdits signaux radiofréquences.More specifically, the control of multiplexing means comprises the activation of an output connected to an antenna of at least one multiplexing device of said multiplexing means by means of a control component of said radio frequency signals.

Comme cela est visible sur les figures 5A et 5B, l'activation d'une sortie d'un dispositif de multiplexage est réalisée de manière itérative de sorte que l'activation d'une sortie d'un dispositif de multiplexage donné associé à un rang J supérieur ou égal à 2 comporte l'activation préalable d'une sortie du premier type d'un dispositif de multiplexage du rang directement inférieur I-1 à laquelle est connectée une entrée dudit dispositif de multiplexage donné.As is visible on the Figures 5A and 5B , the activation of an output of a multiplexing device is performed iteratively so that the activation of an output of a given multiplexing device associated with a rank J greater than or equal to 2 comprises the activation prior to an output of the first type of a directly lower rank multiplexing device I-1 to which is connected an input of said given multiplexing device.

Les méthodes de surveillance représentées sur les figures 5A et 5B sont destinées à la mise en oeuvre d'une installation du type de celle représentée à la figure 4, c'est-à-dire comportant des dispositifs de multiplexage pourvus d'une sortie du premier type et d'une sortie du second type.The monitoring methods represented on the Figures 5A and 5B are intended for the implementation of an installation of the type of that represented in figure 4 , that is to say having multiplexing devices provided with an output of the first type and an output of the second type.

La méthode de surveillance représentée à la figure 5A comporte une phase initiale comprenant :

  • l'envoi 111, TR(1) d'un signal radiofréquence comportant une composante de commande représentative de l'adresse du dispositif de multiplexage de rang 1 et de l'activation de la sortie du second type S2(1) dudit dispositif de multiplexage,
  • l'activation de ladite sortie ACT S2(1), et
  • la transmission RY(1) d'un rayonnement électromagnétique entre l'antenne connectée à ladite sortie S2(1) et le récepteur d'au moins un objet disposé le long de ladite antenne.
The monitoring method represented in Figure 5A comprises an initial phase comprising:
  • the sending 111, TR (1) of a radiofrequency signal comprising a control component representative of the address of the multiplexing device of rank 1 and the activation of the output of the second type S2 (1) of said multiplexing device ,
  • activating said ACT output S2 (1), and
  • the RY transmission (1) of electromagnetic radiation between the antenna connected to said output S2 (1) and the receiver of at least one object disposed along said antenna.

Cette phase initiale est suivie d'une phase itérative portant sur la sélection d'un dispositif de multiplexage de rang J en incrémentant ledit rang de 2 à un rang maximum JMAX. Le rang maximum JMAX est égal à trois dans le cas de l'installation de surveillance de la figure 4. Cette phase itérative comprend :

  • l'envoi 111, TR(J) d'un signal radiofréquence comportant une composante de commande représentative de l'adresse du dispositif de multiplexage de rang I, de l'activation préalable de la sortie du premier type S1(J-1) du dispositif de multiplexage de rang directement inférieur I-1, et de l'activation consécutive de la sortie du second type S2(J) dudit dispositif de multiplexage,
  • l'activation préalable ACT S1(J-1) de la sortie du premier type S1(J-1) du dispositif de multiplexage de rang directement inférieur I-1,
  • l'activation ACT S2(J) de la sortie du second type S2(J) du dispositif de multiplexage de rang I, et
  • la transmission RY(J) d'un rayonnement électromagnétique entre l'antenne connectée à ladite sortie S2(J) et le récepteur d'au moins un objet disposé le long de ladite antenne.
This initial phase is followed by an iterative phase relating to the selection of a multiplexing device of rank J by incrementing said rank of 2 to a maximum rank JMAX. The maximum rank JMAX is equal to three in the case of the surveillance installation of the figure 4 . This iterative phase includes:
  • sending 111, TR (J) a radio frequency signal comprising a control component representative of the address of the multiplexing device of rank I, the prior activation of the output of the first type S1 (J-1) of the a lower-order multiplexing device I-1, and the subsequent activation of the output of the second type S2 (J) of said multiplexing device,
  • the prior activation ACT S1 (J-1) of the output of the first type S1 (J-1) of the lower-order multiplexing device I-1,
  • ACT activation S2 (J) of the output of the second type S2 (J) of the rank I multiplexer, and
  • the transmission RY (J) of electromagnetic radiation between the antenna connected to said output S2 (J) and the receiver of at least one object disposed along said antenna.

A l'issue de la phase itérative, la surveillance redémarre sur l'antenne disposée sur la sortie du second type S2(1) du dispositif de multiplexage de rang 1.At the end of the iterative phase, the monitoring restarts on the antenna arranged on the output of the second type S2 (1) of the multiplexing device of rank 1.

La méthode de surveillance représentée à la figure 5B comporte une phase initiale et une phase itérative sensiblement identiques à celles de la méthode de surveillance représentée à la figure 5A. A la différence de la méthode de surveillance de la figure 5A, la méthode de surveillance de la figure 5B comprend une phase itérative supplémentaire portant sur la sélection d'un dispositif de multiplexage de rang J en décrémentant ledit rang de la valeur maximale JMAX à 2. Cette phase itérative supplémentaire comprend :

  • l'envoi 111, TR(J) d'un signal radiofréquence comportant une composante de commande représentative de l'adresse du dispositif de multiplexage de rang J et de l'activation consécutive de la sortie du second type S2(J) dudit dispositif de multiplexage,
  • l'activation ACT S2(J) de la sortie du second type S2(J) du dispositif de multiplexage de rang I, et
  • la transmission RY(J) d'un rayonnement électromagnétique entre l'antenne connectée à ladite sortie S2(J) et le récepteur d'au moins un objet disposé le long de ladite antenne.
The monitoring method represented in Figure 5B has an initial phase and an iterative phase substantially identical to those of the monitoring method shown in Figure 5A . Unlike the method of monitoring the Figure 5A , the method of monitoring the Figure 5B comprises an additional iterative phase relating to the selection of a multiplexing device of rank J by decreasing said rank of the maximum value JMAX to 2. This additional iterative phase comprises:
  • the sending 111, TR (J) of a radiofrequency signal comprising a control component representative of the address of the multiplexing device of rank J and the subsequent activation of the output of the second type S2 (J) of said device of multiplexing,
  • ACT activation S2 (J) of the output of the second type S2 (J) of the rank I multiplexer, and
  • the transmission RY (J) of electromagnetic radiation between the antenna connected to said output S2 (J) and the receiver of at least one object disposed along said antenna.

A l'issue de la phase itérative supplémentaire, la surveillance redémarre sur l'antenne disposée sur la sortie du second type S2(1) du dispositif de multiplexage de rang 1.At the end of the additional iterative phase, the monitoring restarts on the antenna arranged on the output of the second type S2 (1) of the multiplexing device of rank 1.

Dans les deux méthodes représentées sur les figures 5A et 5B, la sortie du premier type d'un dispositif de multiplexage de rang I-1 a toujours été préalablement activée avant l'activation de la sortie du second type du dispositif de multiplexage de rang J directement supérieur. La lecture des antennes dans la méthode de surveillance de la figure 5A est dite circulaire. La lecture des antennes dans la méthode de surveillance de la figure 5B est, quant à elle, dite en aller-retour. En fonction des applications, l'une ou l'autre de ces méthodes peut être utilisée.In the two methods represented on the Figures 5A and 5B , the output of the first type of a multiplexing device of rank I-1 has always been activated before activation of the output of the second type of the multiplexer device of rank J directly higher. Antenna reading in the monitoring method of the Figure 5A is called circular. Antenna reading in the monitoring method of the Figure 5B is, in turn, said back and forth. Depending on the application, either of these methods can be used.

Claims (14)

Dispositif de multiplexage (1 ; 20 ; 75 ; 85 ; 86 ; 87) destiné à être interconnecté avec au moins un dispositif du même type pour transmettre des signaux radiofréquences entre des moyens de traitement (51 ; 71 ; 81) et une pluralité d'antennes (73 ; 83), ledit dispositif de multiplexage comportant : - un multiplexeur (3) pourvu d'une pluralité de sorties de multiplexage (5), - une unité de commande (7) permettant d'activer l'une des dites sorties grâce à une composante de commande desdits signaux radiofréquences, et - des moyens de couplage (9) entre l'unité de commande et une entrée (11) des signaux radiofréquences pour transmettre ladite composante de commande vers l'unité de commande,
caractérisé en ce que ledit dispositif comporte une pluralité de sorties (12) desdits signaux radiofréquences comprenant au moins une sortie d'un premier type (27 ; 95) pour à transmettre des signaux radiofréquences comportant une composante continue destinée à alimenter un autre dispositif de multiplexage du même type connecté à ladite sortie du premier type. Multiplexing device (1; 20; 75; 85; 86; 87) for interconnection with at least one device of the same type for transmitting radio frequency signals between processing means (51; 71; 81) and a plurality of antennas (73; 83), said multiplexing device comprising: a multiplexer (3) provided with a plurality of multiplexing outputs (5), a control unit (7) enabling one of said outputs to be activated by means of a control component of said radio frequency signals, and coupling means (9) between the control unit and an input (11) of the radio frequency signals for transmitting said control component to the control unit,
characterized in that said device comprises a plurality of outputs (12) of said radio frequency signals comprising at least one output of a first type (27; 95) for transmitting radio frequency signals comprising a DC component for supplying another multiplexing device of the same type connected to said output of the first type. Dispositif selon la revendication 1" caractérisé en ce que la pluralité de sorties (12) desdits signaux radiofréquences comprend au moins une sortie d'un second type (41 ; 97) destinée à transmettre des signaux radiofréquences comportant essentiellement une composante non continue.Device according to claim 1, characterized in that the plurality of outputs (12) of said radio frequency signals comprises at least one output of a second type (41; 97) for transmitting radio frequency signals essentially comprising a non-continuous component. Dispositif selon les revendications 1 ou 2, caractérisé en ce qu'il comporte des moyens de récupération (13) d'une composante continue des signaux radiofréquences connectés à l'entrée (11) desdits signaux pour récupérer ladite composante, lesdits moyens de récupération étant connectés à une entrée d'alimentation (15) du multiplexeur (3) pour alimenter électriquement ledit multiplexeur.Device according to claims 1 or 2, characterized in that it comprises means (13) for recovering a DC component of the radio frequency signals connected to the input (11) of said signals to recover said component, said retrieval means being connected to a power input (15) of the multiplexer (3) for supplying power to said multiplexer. Dispositif selon la revendication 3, caractérisée en ce qu'il comporte des moyens de suppression (29, 43) de la composante continue connectés entre le multiplexeur (3) et chaque sortie (12, 27, 41) dudit dispositif.Device according to claim 3, characterized in that it comprises means for removing (29, 43) the DC component connected between the multiplexer (3) and each output (12, 27, 41) of said device. Dispositif selon la revendication 4, caractérisée en ce qu'il comporte des moyens d'ajout (31) de la composante continue connectés entre les moyens de suppression (29) de la composante continue et la au moins une sortie du premier type (27), lesdits moyens d'ajout étant conçus pour ajouter ladite composante continue lorsque ladite sortie est activée et lorsque ladite sortie est connectée à un dispositif multiplexeur du même type.Device according to claim 4, characterized in that it comprises means (31) for adding the DC component connected between the DC component suppression means (29) and the at least one output of the first type (27). said adding means being adapted to add said DC component when said output is activated and when said output is connected to a multiplexer device of the same type. Dispositif selon la revendication 5, caractérisé en ce qu'il comporte un interrupteur commandé (33) connecté entre l'entrée de la composante continue des moyens d'ajout (31) de la composante continue et les moyens de récupération (13) de ladite composante continue, ledit interrupteur comportant une entrée de commande connectée à l'unité de commande (7).Device according to claim 5, characterized in that it comprises a controlled switch (33) connected between the input of the DC component of the adding means (31) of the DC component and the recovery means (13) of said DC component, said switch having a control input connected to the control unit (7). Installation de surveillance pour surveiller des objets (80) équipés de récepteurs, ladite installation comprenant : - une pluralité d'antennes (73 ; 83) le long desquelles sont disposés lesdits objets pour transmettre un rayonnement électromagnétique entre lesdites antennes et lesdits récepteurs, - des moyens de traitement (51 ; 71 ; 81) pour transmettre des signaux radiofréquences entre lesdits moyens de traitement et lesdites antennes, et - des moyens de multiplexage connectés entre lesdits moyens de traitement et lesdites antennes pour sélectionner une antenne vers laquelle sont transmis lesdits signaux radiofréquences,
caractérisée en ce que lesdits moyens de multiplexage comprennent une pluralité de dispositif de multiplexage (1, 20 ; 75 ; 87) interconnectées par des conducteurs de signaux radiofréquences comportant une impédance adaptée, chaque dispositif de multiplexage étant un dispositif selon l'une des revendications précédentes, lesdits dispositifs étant commandés grâce à une composante de commande desdits signaux radiofréquences. Monitoring apparatus for monitoring objects (80) with receivers, said apparatus comprising: a plurality of antennas (73; 83) along which said objects are arranged to transmit electromagnetic radiation between said antennas and said receivers, processing means (51; 71; 81) for transmitting radiofrequency signals between said processing means and said antennas, and multiplexing means connected between said processing means and said antennas for selecting an antenna to which said radiofrequency signals are transmitted,
characterized in that said multiplexing means comprise a plurality of multiplexing devices (1, 20; 75; 87) interconnected by radio frequency signal conductors having a matched impedance, each multiplexer being a device according to one of the preceding claims said devices being controlled by a control component of said radio frequency signals. Installation selon la revendication 7, caractérisée en ce que chaque dispositif de multiplexage (75 ; 87) est associé à un rang (J) correspondant à la position dudit dispositif dans ladite installation par rapport aux moyens de traitement, chaque dispositif de multiplexage comportant une entrée dudit signal radiofréquence et une pluralité de sorties dudit signal radiofréquence, l'entrée d'un dispositif de multiplexage associé à un rang (J) supérieur ou égal à 2 étant connectée à une sortie d'un premier type destinée à transmettre des signaux radiofréquence comportant une composante continue d'un dispositif de multiplexage du rang directement inférieur (J-1), lesdites antennes étant connectées à au moins une partie des sorties restantes.Installation according to Claim 7, characterized in that each multiplexing device (75; 87) is associated with a row (J) corresponding to the position of said device in said installation with respect to the processing means, each multiplexing device comprising an input of said radio frequency signal and a plurality of outputs of said radio frequency signal, the input of a multiplexing device associated with a row (J) greater than or equal to 2 being connected to an output of a first type intended to transmit radio frequency signals comprising a DC component of a directly lower rank multiplexing device (J-1), said antennas being connected to at least a portion of the remaining outputs. Installation selon la revendication 8, caractérisée en ce que les moyens de couplage (9; 91) entre l'unité de commande et l'entrée du signal radiofréquence utilisent un support de communication du même type que les antennes (83) et les récepteurs des objets (80).Installation according to Claim 8, characterized in that the coupling means (9; 91) between the control unit and the input of the radiofrequency signal use a communication medium of the same type as the antennas (83) and the receivers of the objects (80). Installation selon la revendication 9, caractérisée en ce que les moyens de couplage (9 ; 91) de chaque dispositif de multiplexage utilisent un protocole de communication identique à celui utilisé par les antennes (83) et les récepteurs des objets (80).Installation according to Claim 9, characterized in that the coupling means (9; 91) of each multiplexing device use a communication protocol identical to that used by the antennas (83) and the receivers of the objects (80). Installation selon l'une quelconque des revendications 7 à 10, caractérisée en ce que les sorties des signaux radiofréquences de chaque dispositif de multiplexage sont essentiellement constituées par une sortie d'un premier type (27 ; 95) destinée à transmettre des signaux radiofréquences comportant une composante continue, et une sortie d'un second type (41 ; 97) destinée à transmettre des signaux radiofréquences comportant essentiellement une composante non continue.Installation according to any one of claims 7 to 10, characterized in that the outputs of the radio frequency signals of each multiplexing device consist essentially of an output of a first type (27; 95) for transmitting radio frequency signals comprising a radio frequency signal. DC component, and an output of a second type (41; 97) for transmitting radio frequency signals essentially comprising a non-continuous component. Installation selon la revendication 11, caractérisée en ce que chaque antenne (83) connectée à la sortie du second type est supportée sur un support d'antenne modulaire (107).Installation according to claim 11, characterized in that each antenna (83) connected to the output of the second type is supported on a modular antenna support (107). Méthode de surveillance pour surveiller des objets équipés de récepteurs, ladite méthode comprenant : - la transmission (111, TR(1), TR(J)) de signaux radiofréquences entre des moyens de traitement et des antennes le long desquelles sont disposés lesdits objets, - la commande de moyens de multiplexage connectés entre lesdits moyens de traitement et lesdites antennes pour sélectionner une antenne vers laquelle sont transmis lesdits signaux radiofréquences, et - la transmission (115, RY(1); RY(J)) d'un rayonnement électromagnétique entre l'antenne sélectionnée et le récepteur d'au moins un objet disposé le long de ladite antenne,
la commande de moyens de multiplexage comprenant l'activation (ACT S2(1), ACT S2(J)) d'une sortie connectée à une antenne d'au moins un dispositif de multiplexage desdits moyens de multiplexage à l'aide d'une composante de commande desdits signaux radiofréquences,
caractérisé en ce qu'elle comprend la transmission de signaux radiofréquences comportant une composante continue sur une sortie du premier type, ladite composante continue étant destinée à alimenter un autre dispositif de multiplexage du même type connecté à ladite sortie du premier type. A surveillance method for monitoring objects equipped with receivers, said method comprising: the transmission (111, TR (1), TR (J)) of radiofrequency signals between processing means and antennas along which said objects are arranged, the control of multiplexing means connected between said processing means and said antennas for selecting an antenna to which said radio frequency signals are transmitted, and the transmission (115, RY (1); RY (J)) of electromagnetic radiation between the selected antenna and the receiver of at least one object disposed along said antenna,
the control of multiplexing means comprising the activation (ACT S2 (1), ACT S2 (J)) of an output connected to an antenna of at least one multiplexing device of said multiplexing means by means of a control component of said radio frequency signals,
characterized in that it comprises the transmission of radio frequency signals comprising a DC component to an output of the first type, said DC component being intended to supply another multiplexing device of the same type connected to said output of the first type. Méthode selon la revendication 13, caractérisée en ce que l'activation (ACT S2(J)) d'une sortie (S2) d'un dispositif de multiplexage donné associé à un rang (J) supérieur ou égal à 2 correspondant à la position dudit dispositif par rapport aux moyens de traitement, comporte l'activation préalable (ACT S1(J-1)) d'une sortie d'un premier type (S1), destinée à transmettre des signaux radiofréquences comportant une composante continue, d'un dispositif de multiplexage du rang directement inférieur (J-1) à laquelle est connectée une entrée dudit dispositif de multiplexage donné.Method according to claim 13, characterized in that the activation (ACT S2 (J)) of an output (S2) of a given multiplexing device associated with a rank (J) greater than or equal to 2 corresponding to the position of said device with respect to the processing means, comprises the prior activation (ACT S1 (J-1)) of an output of a first type (S1), intended to transmit radio frequency signals comprising a continuous component, of a lower-order multiplexing device (J-1) to which an input of said given multiplexing device is connected.
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Also Published As

Publication number Publication date
EP2290632A3 (en) 2017-11-15
EP2290632B1 (en) 2019-05-08
FR2949592B1 (en) 2017-07-21
CN102005315B (en) 2015-03-04
FR2949592A1 (en) 2011-03-04
ES2735219T3 (en) 2019-12-17
CN102005315A (en) 2011-04-06

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