EP2290632B1 - Vorrichtung zum multiplexen, überwachungsanlage mit einer solchen vorrichtung und überwachungsverfahren - Google Patents

Vorrichtung zum multiplexen, überwachungsanlage mit einer solchen vorrichtung und überwachungsverfahren Download PDF

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Publication number
EP2290632B1
EP2290632B1 EP10354029.0A EP10354029A EP2290632B1 EP 2290632 B1 EP2290632 B1 EP 2290632B1 EP 10354029 A EP10354029 A EP 10354029A EP 2290632 B1 EP2290632 B1 EP 2290632B1
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Prior art keywords
output
frequency signals
multiplexing
radio
type
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French (fr)
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EP2290632A3 (de
EP2290632A2 (de
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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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    • 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 patent CH682352 A5 describes a transponder interrogation equipment using antennas arranged in series along a coaxial cable, and switched one after the other.
  • the invention aims to overcome the disadvantages of multiplexing devices and monitoring facilities of the prior art by providing a multiplexing device defined in claim 1.
  • the coupling means are electromagnetic.
  • 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. command.
  • 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 by a modular antenna support.
  • each multiplexing device is supported by the antenna antenna support 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 by means of 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 20 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 J-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 J-row multiplexing input device 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 by 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 lower rank multiplexing device J-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.

Claims (13)

  1. Multiplexierungsvorrichtung (1; 20; 75; 85; 86; 87), die dazu bestimmt ist, mit mindestens einer Vorrichtung des gleichen Typs verbunden zu werden, um Radiofrequenzsignale zwischen Verarbeitungsmitteln (51; 71; 81) und mehreren Antennen (73; 83) zu übertragen, wobei die Multiplexierungsvorrichtung aufweist:
    - einen Multiplexer (3), der mit mehreren Multiplexausgängen (5) versehen ist,
    - eine Steuereinheit (7), die ermöglicht, einen der Ausgänge dank einer Steuerkomponente der Radiofrequenzsignale zu aktivieren, und
    - und Kopplungsmittel (9) zwischen der Steuereinheit und einem Eingang (11) der Radiofrequenzsignale, um die Steuerkomponente an die Steuereinheit zu übertragen,
    dadurch gekennzeichnet, dass die Vorrichtung mehrere Ausgänge (12) der Radiofrequenzsignale aufweist, umfassend:
    - mindestens einen Ausgang eines ersten Typs (27; 95), um Radiofrequenzsignale zu übertragen, die eine Gleichkomponente aufweisen, die dazu bestimmt ist, eine andere Multiplexierungsvorrichtung des gleichen Typs zu speisen, die an dem Ausgang des ersten Typs angeschlossen ist, und
    - mindestens einen Ausgang eines zweiten Typs (41; 97), der dazu bestimmt ist, Radiofrequenzsignale zu übertragen, die im Wesentlichen eine Wechselkomponente aufweisen.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie Mittel zur Wiederherstellung (13) einer Gleichkomponente der Radiofrequenzsignale aufweist, die an dem Eingang (11) der Signale angeschlossen sind, um die Komponente wiederherzustellen, wobei die Mittel zur Wiederherstellung an einem Stromversorgungseingang (15) des Multiplexers (3) angeschlossen sind, um den Multiplexer mit Strom zu versorgen.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass sie Mittel zur Unterdrückung (29, 43) der Gleichkomponente aufweist, die zwischen dem Multiplexer (3) und jedem Ausgang (12, 27, 41) der Vorrichtung angeschlossen sind.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass sie Mittel zum Hinzufügen (31) der Gleichkomponente aufweisen, die zwischen den Mitteln zur Unterdrückung (29) der Gleichkomponente und dem mindestens einen Ausgang des ersten Typs (27) angeschlossen sind, wobei die Mittel zum Hinzuzufügen ausgebildet sind, um die Gleichkomponente hinzuzufügen, wenn der Ausgang aktiviert ist und wenn der Ausgang an eine Multiplexierungsvorrichtung des gleichen Typs angeschlossen ist.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass sie einen gesteuerten Schalter (33) aufweist, der zwischen dem Eingang der Gleichkomponente der Mittel zum Hinzufügen (31) der Gleichkomponente und den Mitteln zur Wiederherstellung (13) der Gleichkomponente angeschlossen ist, wobei der Schalter einen Steuereingang aufweist, der an der Steuereinheit (7) angeschlossen ist.
  6. Überwachungsanlage, um Gegenstände (80) zu überwachen, die mit Empfängern ausgestattet sind, wobei die Anlage aufweist:
    - mehrere Antennen (73; 83), entlang derer die Gegenstände angeordnet sind, um eine elektromagnetische Strahlung zwischen den Antennen und den Empfängern zu übertragen,
    - Verarbeitungsmittel (51; 71; 81), um Radiofrequenzsignale zwischen den Verarbeitungsmitteln und den Antennen zu übertragen, und
    - Multiplexierungsmittel, die zwischen den Verarbeitungsmitteln und den Antennen angeschlossen sind, um eine Antenne auszuwählen, an die die Radiofrequenzsignale übertragen werden,
    dadurch gekennzeichnet, dass die Multiplexierungsmittel mehrere Multiplexierungsvorrichtungen (1, 20; 75; 87) aufweisen, die durch Leiter von Radiofrequenzsignalen miteinander verbunden sind, die eine geeignete Impedanz aufweisen, wobei jede Multiplexierungsvorrichtung eine Vorrichtung nach einem der vorhergehenden Ansprüche ist, wobei die Vorrichtungen dank einer Steuerkomponente der Radiofrequenzsignale gesteuert sind.
  7. Anlage nach Anspruch 6, dadurch gekennzeichnet, dass jede Multiplexierungsvorrichtung (75; 87) einer Reihe (J) zugeordnet ist, die der Position der Vorrichtung in der Anlage in Bezug auf die Verarbeitungsmittel entspricht, wobei jede Multiplexierungsvorrichtung einen Eingang des Radiofrequenzsignals und mehrere Ausgänge des Radiofrequenzsignals aufweist, wobei der Eingang einer Multiplexierungsvorrichtung, die einer Reihe (J) zugeordnet ist, die höher als oder gleich 2 ist, an einen Ausgang eines ersten Typs angeschlossen ist, der dazu bestimmt ist, Radiofrequenzsignale, die eine Gleichkomponente aufweisen, von einer Multiplexierungsvorrichtung der direkt darunter liegenden Reihe (J-1) zu übertragen, wobei die Antennen an mindestens einen Teil der restlichen Ausgänge angeschlossen sind.
  8. Anlage nach Anspruch 7, dadurch gekennzeichnet, dass die Kopplungsmittel (9; 91) zwischen der Steuereinheit und dem Eingang des Radiofrequenzsignals ein Kommunikationsmedium des gleichen Typs wie die Antennen (83) und die Empfänger der Gegenstände (80) verwenden.
  9. Anlage nach Anspruch 8, dadurch gekennzeichnet, dass die Kopplungsmittel (9; 91) von jeder Multiplexierungsvorrichtung ein Kommunikationsprotokoll verwenden, das mit jenem identisch ist, das von den Antennen (83) und den Empfängern der Gegenstände (80) verwendet wird.
  10. Anlage nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass die Ausgänge der Radiofrequenzsignale von jeder Multiplexierungsvorrichtung im Wesentlichen aus einem Ausgang eines ersten Typs (27; 95), der dazu bestimmt ist, Radiofrequenzsignale zu übertragen, die eine Gleichkomponente aufweisen, und aus einem Ausgang eines zweiten Typs (41; 97) gebildet sind, der dazu bestimmt ist, Radiofrequenzsignale zu übertragen, die im Wesentlichen eine Wechselkomponente aufweisen.
  11. Anlage nach Anspruch 10, dadurch gekennzeichnet, dass jede Antenne (83), die an den Ausgang des zweiten Typs angeschlossen ist, von einer modularen Antennenhalterung (107) getragen ist.
  12. Überwachungsverfahren, um Gegenstände zu überwachen, die mit Empfängern ausgestattet sind, wobei das Verfahren aufweist:
    - das Übertragen (111, TR(1), TR(J)) von Radiofrequenzsignalen zwischen Verarbeitungsmitteln und Antennen, entlang derer die Gegenstände angeordnet sind,
    - das Steuern von Multiplexierungsmitteln, die zwischen den Verarbeitungsmitteln und den Antennen angeschlossen sind, um eine Antenne auszuwählen, an die die Radiofrequenzsignale übertragen werden, und
    - das Übertragen (115, RY(1); RY(J)) einer elektromagnetischen Strahlung zwischen der ausgewählten Antenne und dem Empfänger von mindestens einem Gegenstand, der entlang der Antenne angeordnet ist,
    wobei das Steuern von Multiplexierungsmitteln das Aktivieren (ACT S2(1), ACT S2(J)) eines Ausgangs, der an eine Antenne von mindestens einer Multiplexierungsvorrichtung der Multiplexierungsmittel angeschlossen ist, mittels einer Steuerkomponente der Radiofrequenzsignale aufweist,
    dadurch gekennzeichnet, dass es aufweist:
    - das Übertragen von Radiofrequenzsignalen, die eine Gleichkomponente aufweisen, über einen Ausgang eines ersten Typs, wobei die Gleichkomponente dazu bestimmt ist, eine andere Multiplexierungsvorrichtung des gleichen Typs zu speisen, die an dem Ausgang des ersten Typs angeschlossen ist, und
    - das Übertragen von Radiofrequenzsignalen, die im Wesentlichen eine Wechselkomponente aufweisen, über einen Ausgang eines zweiten Typs.
  13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass das Aktivieren (ACT S2(J)) eines Ausgangs (S2) einer bestimmten Multiplexierungsvorrichtung, die einer Reihe (J) zugeordnet wird, die höher als oder gleich 2 ist, die der Position der Vorrichtung in Bezug auf die Verarbeitungsmittel entspricht, das vorhergehende Aktivieren (ACT S1(J-1)) eines Ausgangs eines ersten Typs (S1) aufweist, der dazu bestimmt ist, Radiofrequenzsignale, die eine Gleichkomponente aufweisen, von einer Multiplexierungsvorrichtung der direkt darunter liegenden Reihe (J-1) zu übertragen, an den ein Eingang der bestimmten Multiplexierungsvorrichtung angeschlossen ist.
EP10354029.0A 2009-08-26 2010-06-11 Vorrichtung zum multiplexen, überwachungsanlage mit einer solchen vorrichtung und überwachungsverfahren Active EP2290632B1 (de)

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FR0904055A FR2949592B1 (fr) 2009-08-26 2009-08-26 Dispositif de multiplexage, installation de surveillance comportant un tel dispositif et methode de surveillance

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Also Published As

Publication number Publication date
ES2735219T3 (es) 2019-12-17
EP2290632A3 (de) 2017-11-15
FR2949592A1 (fr) 2011-03-04
CN102005315B (zh) 2015-03-04
CN102005315A (zh) 2011-04-06
EP2290632A2 (de) 2011-03-02
FR2949592B1 (fr) 2017-07-21

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