EP2345789B1 - Radio-controlled drive device - Google Patents

Radio-controlled drive device Download PDF

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Publication number
EP2345789B1
EP2345789B1 EP11162621.4A EP11162621A EP2345789B1 EP 2345789 B1 EP2345789 B1 EP 2345789B1 EP 11162621 A EP11162621 A EP 11162621A EP 2345789 B1 EP2345789 B1 EP 2345789B1
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EP
European Patent Office
Prior art keywords
antenna
motor
radio frequency
conductors
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP11162621.4A
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German (de)
French (fr)
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EP2345789A1 (en
Inventor
Michel Ramus
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Somfy SA
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Somfy SA
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller

Definitions

  • the present invention relates to the control devices by radio frequency control, and more specifically the drive devices used for winding blinds and shutters.
  • radio transmission In the field of housing or building in general, it is increasingly used radio transmission to remotely control elements electrically powered by the low voltage network (typically 230 V AC 50 Hz or 120 V AC 60 Hz), or sector.
  • the low voltage network typically 230 V AC 50 Hz or 120 V AC 60 Hz
  • This motor has a tubular shape and is placed inside a steel winding tube, on which is disposed the product to be wound.
  • the radio integrated in the motor has an antenna in the form of a semi-rigid wire strand, coming out of the tubular motor and also coming out of the winding tube over an appropriate distance, for example ⁇ / 4 (a quarter of the wavelength), ie 17 cm for a frequency of 433 MHz or 8 cm for a frequency of 868 MHz.
  • This kind of antenna has a disadvantage of fragility, relative to the mass of the engine, which requires special handling and packaging precautions.
  • the housing of the winding tube of the blind or shutter is often made of a steel box, or even aluminum. In this unfavorable environment, the range of the antenna can be considerably reduced. In addition, if the device is mounted externally on a reinforced concrete wall, this reduction is accentuated.
  • EP-0-921 266-A2 proposes the direct placement of the radio receiver inside the motor tube.
  • the antenna layout In the product marketed by TOPELECTRO International, in Spain, under the reference TOPELECTRO JUNIOR, the quarter wave antenna is disposed completely independently of the mains wire, partially wound on itself so as to take up less space. This provision explains an extremely limited scope.
  • the radio receiver is arranged in a control box independent of the motor tube, but easy integration with the rolling shutter box or a blind fastener. There is no mention of a particular arrangement of the antenna within this housing.
  • US-A-2,218,830 proposes an antenna for radio or television receiver, having an antenna formed by a wire associated with the power cable; the antenna is associated with this cable so as to minimize the coupling between the antenna and the mains wire.
  • GB-A-340389 proposes, for such receivers, to use directly as an antenna a portion of the mains cable, isolated upstream and downstream by two plug circuits. At the frequency of the signal, everything happens as if the cable was a single wire serving as aerial wire. The two plugs provide isolation between the signals received by the antenna cable and the mains signals.
  • Figure 4 of US-A-6,104,920 proposes a device of the same kind as this English patent.
  • GB-A-702,525 proposes a solution of the same kind, for television receivers. The signal received on the portion of the antenna feed conductors is coupled into the receiver using a coupling coil and a coaxial cable.
  • US-A-5,351,284 relates to the base of a cordless phone; the telescopic antenna is replaced by a wire coupled to either the telephone line or the mains cable; it is expressly stated that the telephone line or mains cable does not contribute to the reception of the antenna.
  • US-A-3,863,157 proposes a device of the same kind, in which the connecting son between the amplifier of a stereo receiver and the speakers are also used as antenna son; there is still a separation of the two functions.
  • the objective is to replace a fragile or unsightly aerial with a portion of a cable accepted for other reasons.
  • These documents accordingly specify that it is important to isolate the signals received on the cable serving as aerial signals transmitted on the cable in its usual use.
  • US-A-4,032,723 shows a cordless duplex telephone system; one of the elements of a doublet antenna consists of a conductor of the mains cable.
  • the teaching of this document is similar to that of the previous documents - however the antenna is of another type.
  • the company BUBENDOREF sells under the reference 'id' a motor for shutters with integrated radio without specific antenna, for which the sector is globally used as receiver antenna, and using an electrical connection by capacitor between the terminal of arrival of a wire sector and the RF input point of the receiver circuit. It should be noted that such an arrangement makes the electronic card particularly sensitive to attacks by energy parasites carried by the sector.
  • US-A2 581 983 proposes to couple a radiofrequency reception circuit to the power supply cable of a radio receiver.
  • the coupling point is a quarter to one eighth wavelength away from the receiver chassis, which is grounded.
  • US-A-3,290,601 is an improvement of this patent, and proposes simply to form a doublet antenna by associating with the preceding device a monopole antenna.
  • US-A-2 915 627 offers an antenna for radio receiver.
  • a cylindrical conductor of one-quarter to one-half the wavelength of the radio frequency signals surrounds the power cable; the cylindrical conductor transmits to a radio frequency receiver the radiofrequency signals received by the sector, which acts as an antenna.
  • US-A-4,507,646 proposes to use the sector wires as an antenna of the transmitter or receiver for a paging system; the nature of the coupling circuit of the receiver or radiofrequency transmitter to the sector is not specified.
  • the devices described in these various documents are intended to avoid using a dedicated antenna, using as antenna sector drivers.
  • This solution involves precisely controlling the coupling point of the receiver or radiofrequency transmitter to the sector conductors; lack of such control of the coupling point, this solution actually has serious drawbacks in terms of selectivity, and susceptibility to broadband energy parasites carried by the sector.
  • the galvanic isolation may require the use of particularly protected capacitors.
  • the invention proposes, in the specific case of tubular motors, a solution that makes it possible to control a motor by radio, with good reliability.
  • the solution applies to all operating environments of these engines; it is simple to implement.
  • the invention proposes a drive device having a motor, a radio frequency control circuit of the motor, motor power supply conductors and radio frequency circuit and an antenna connected to the radio frequency circuit and electrically coupled for radio frequencies to at least one of the conductors by a non-galvanic coupling, while the motor, the radio frequency circuit and the antenna are arranged in a metal motor tube.
  • the power received or partially transmitted directly through the antenna represents more than 5%, or even 10% of the power received or transmitted by the radio frequency circuit.
  • the power received or partially transmitted directly through the antenna represents less than 50% or even less than 40% of the power received or transmitted by the radio frequency circuit.
  • the antenna is mechanically coupled to the conductors.
  • the antenna may be a monopole antenna, and in this case it may have a length close to a quarter of the wavelength of the radiofrequency signals received or transmitted by the radio frequency circuit.
  • the antenna is formed of a printed circuit track.
  • at least one conductor has a printed circuit track extending parallel to the track forming the antenna.
  • the antenna is electrically coupled to the power supply conductors, so that the radio frequency signals are at least partly received or emitted through the mains supply conductors.
  • This configuration is particularly advantageous when the engine is in a steel or aluminum box, which can limit the propagation of electromagnetic waves.
  • the invention also differs from the state-of-the-art solution proposed in US-A2 581 983 or in similar documents; indeed, in these documents, there is no antenna receiving or emitting directly part of the radiated power or emitted. Since the invention is not based solely on the sector, it ensures a more efficient reception or emission.
  • the solution of the invention makes it possible to solve the problems of the engines of the state of the art. Since the antenna is electrically coupled to the mains wires, it is possible to arrange the antenna inside a metal tube containing the motor and its control circuit. The antenna does not protrude from the tube and will not be damaged during transport or assembly.
  • the figure 1 shows a schematic sectional view of a driving device according to a first embodiment of the invention.
  • the device 2 has a tube 4, or tube engine.
  • the motor tube is typically cylindrical in shape. It is often made of metal, which ensures the necessary mechanical rigidity; it can also be plastic.
  • Around the engine tube is provided a winding tube 9, usually metal.
  • This winding tube is mounted on two supports 6 and 8, the support 6 being at one end of the tube 4.
  • the two supports include a bearing facilitating the rotation of the winding tube.
  • This tube 9 receives the end of the shutter or awning to be wound.
  • an electric motor 10 which is capable of rotating the winding tube 9, with respect to the motor tube 4, by means of a drive wheel 11.
  • the device further comprises, always inside the motor tube 4, a radiofrequency circuit 12 for controlling the motor.
  • This circuit is capable of receiving or transmitting radio frequency signals, as explained below.
  • radiofrequency is used here to mean the frequency ranges between 100 and 1000 MHz, with transmission through the air over short distances - of the order of 10 to 1000 m in free field.
  • the circuit 12 controls the motor according to the received signals and / or the transmitted signals.
  • the motor and the radio frequency circuit are powered by conductors 14 intended to be connected to the electrical network.
  • the device also has an antenna 16.
  • This antenna is firstly connected to the radiofrequency circuit, so that the radiofrequency signals received by the antenna are applied to the circuit and / or so that the radiofrequency signals supplied by the circuit are radiated by the antenna.
  • the antenna is typically a quarter-wave antenna, formed of an elongated conductor having a length of the order of a quarter of the wavelength of the frequency used for the control of the engine; the common frequency ranges for home automation applications are 433 MHz or 868 MHz, which leads to an antenna length of about 17 or 8 cm.
  • the antenna will be a monopoly. As shown in the figure, the antenna extends entirely into the motor tube 4; this has the advantage that the antenna is thus protected by the tube. The problems of fragility of the antenna or installation of it no longer arise.
  • the antenna 16 is also electrically coupled to at least one of the power supply conductors 14 of the motor and the power circuit.
  • the electrical coupling between the conductor (s) 14 and the antenna 16 enables the radio frequency circuit to receive, through the antenna, radio frequency signals picked up by the electrical network; the network can therefore serve as an antenna for receiving radio frequency signals for the motor control circuit.
  • the electrical coupling between the conductor (s) 14 and the antenna 16 allows the radio frequency circuit to transmit through the antenna 16 radiofrequency signals to the electrical network; the electrical network can therefore act as a transmitting antenna for radiofrequency signals emitted by the motor control circuit.
  • the coupling between the antenna and the conductor (s) 14 is a coupling that is both non-galvanic and selective; that is, the antenna and the conductor are electrically coupled for signals in radiofrequency ranges used for motor control; however, at the power frequencies of the motor, the antenna and the conductors are isolated.
  • This non-galvanic coupling can be carried out in various ways; the simplest is, as represented in figure 1 , that the antenna extends in the vicinity of the conductors; the distance between the conductor (s) and the antenna can be as small as possible and simply correspond to the thickness of the insulation surrounding the conductors; this configuration has the advantage of maximizing the coupling between the antenna and the drivers for radio frequencies.
  • a simple method consists in passing the conductors and the antenna wire in the same insulating sheath, possibly heat-shrinkable; such a mechanical coupling ensures a good proximity of the conductors and the antenna wire, and therefore a good electrical coupling.
  • the figure 1 still shows in dotted lines the boundaries of a box 18 in which the drive device is placed; this box is a box often metal steel or aluminum; it receives the winding tube and the blind or roller shutter when it is in a folded position.
  • the box can then be fully closed; this is particularly the case for the boxes of external blinds, which are closed when the blind is folded.
  • the antenna 16 is surrounded firstly by the tube of the motor 4, then by the winding tube 9, then by the box; the conductors 14 come out against the engine tube as the box, to be connected to the sector. It is clear, however, that the exact position of the connection between the conductors 14 and the electrical network does not affect the operation of the device.
  • the device of the figure 1 works as explained now. It can operate on the one hand in reception, for example to transmit to the driving device an order of operation - in the case of a blind or roller shutter, a winding or unwinding order of the blind, or still a stop order of winding or unwinding. It can also operate in transmission, to transmit information relating to the state of the training device - for example an acknowledgment of receipt of a command, or information on the position of the training device or its speed; in this case, it is of course unreasonable to describe circuit 12 as a "control" circuit, since the control of the motor can be executed by other means; however, this term is used for simplicity in the present description.
  • the operation in transmission and the operation in reception are similar, and only the operation in reception is described in detail.
  • the commands applied to the control circuit are transmitted by the latter to the motor, so as to drive the winding tube in rotation in one direction or the other, or to interrupt its rotation.
  • the radiofrequency signals at the input of the control circuit have in the second case a power 10 dB lower than the corresponding power in the first case; this attenuation is representative of the attenuation caused by the motor tube - the antenna being arranged in the motor tube.
  • the invention therefore has the effect of deteriorating the performance of an engine not yet installed.
  • the radiofrequency signals at the input of the control circuit have a higher power of 3 dB to the corresponding power in an MA device also placed in a winding tube and a box; this increase in power is representative of the effect of the non-galvanic coupling between the supply conductors and the antenna in the device of the invention.
  • the figure 2 shows a schematic partial view of another embodiment.
  • the antenna has the shape of a track 22 of a printed circuit 24.
  • the coupling can then simply be achieved by using for the conductor or drivers one or two tracks 26 or 28 adjacent the track materializing the antenna.
  • the device of the invention is remarkable in that it avoids problems during assembly of the device, during its installation, as during its current use.
  • the present invention is not limited to the examples and embodiments described and shown, but it is capable of many variants accessible to those skilled in the art.
  • the bead would be made specifically, and contain, at the end to be connected to the motor, the antenna strand or a portion thereof.
  • Such an arrangement would make it possible, at least partially, to have the antenna outside the motor tube and / or the winding tube, and thus to better distribute the control signal powers transmitted directly or by the wires. 'food.
  • the antenna extends outside the motor tube, even in the case where the power cord is delivered with the motor.
  • roller shutters or blinds It is also clear that the invention is not limited to the preferred embodiment of roller shutters or blinds. It applies more generally to all training devices, such as those of garage doors, chairs or articulated beds, or other.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Details Of Aerials (AREA)
  • Control Of Electric Motors In General (AREA)
  • Brushes (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

The drive (2) has a motor (10) controlled by a radio frequency circuit (12). Conductors (14) supply electricity to the motor and to the radio frequency circuit. The drive circuit can transmit or receive radio frequency signals directly through an antenna (16), or from the electric power supply conductors through an isolating coupling.

Description

La présente invention concerne les dispositifs d'entraînement à commande par radiofréquence, et plus spécifiquement les dispositifs d'entraînement utilisés pour l'enroulement des stores et volets roulants.The present invention relates to the control devices by radio frequency control, and more specifically the drive devices used for winding blinds and shutters.

Dans le domaine de l'habitat ou du Bâtiment en général, il est fait de plus en plus fréquemment usage de transmission radio pour commander à distance des éléments alimentés électriquement par le réseau basse tension (typiquement 230 V AC 50 Hz ou 120 V AC 60 Hz), ou secteur.In the field of housing or building in general, it is increasingly used radio transmission to remotely control elements electrically powered by the low voltage network (typically 230 V AC 50 Hz or 120 V AC 60 Hz), or sector.

La demanderesse commercialise sous la référence SLT et IPSO un moteur d'entraînement de stores ou de volets roulants, avec télécommande radio. Ce moteur présente une forme tubulaire et se place à l'intérieur d'un tube d'enroulement en acier, sur lequel est disposé le produit à enrouler. Dans ces conditions, la radio intégrée au moteur présente une antenne sous forme d'un brin de fil semi-rigide, sortant du moteur tubulaire et sortant aussi du tube d'enroulement sur une distance appropriée, par exemple λ/4 (un quart de la longueur d'onde), soit 17 cm pour une fréquence de 433 MHz ou 8 cm environ pour une fréquence de 868 MHz.The plaintiff markets under the reference SLT and IPSO a drive motor blinds or shutters, with radio remote control. This motor has a tubular shape and is placed inside a steel winding tube, on which is disposed the product to be wound. Under these conditions, the radio integrated in the motor has an antenna in the form of a semi-rigid wire strand, coming out of the tubular motor and also coming out of the winding tube over an appropriate distance, for example λ / 4 (a quarter of the wavelength), ie 17 cm for a frequency of 433 MHz or 8 cm for a frequency of 868 MHz.

Ce genre d'antenne présente un inconvénient de fragilité, relativement à la masse du moteur, ce qui impose des précautions particulières de manipulation et d'emballage. De plus, le logement du tube d'enroulement du store ou du volet roulant, est souvent constitué d'un caisson en acier, voire en aluminium. Dans cet environnement défavorable, la portée de l'antenne peut-être considérablement réduite. En outre, pour peu que le dispositif soit monté extérieurement, sur un mur en béton armé, cette réduction est accentuée.This kind of antenna has a disadvantage of fragility, relative to the mass of the engine, which requires special handling and packaging precautions. In addition, the housing of the winding tube of the blind or shutter, is often made of a steel box, or even aluminum. In this unfavorable environment, the range of the antenna can be considerably reduced. In addition, if the device is mounted externally on a reinforced concrete wall, this reduction is accentuated.

Il faut noter que diverses solutions ont été proposées pour faciliter l'intégration d'un récepteur radio à un tel moteur. Ainsi EP-0-921 266-A2 propose la mise en place directe du récepteur radio à l'intérieur du tube moteur. Il n'est pas fait mention explicite de la disposition de l'antenne. Dans le produit commercialisé par la société TOPELECTRO International, en Espagne, sous la référence TOPELECTRO JUNIOR, l'antenne quart d'onde est disposée de manière totalement indépendante du fil secteur, partiellement enroulée sur elle-même de manière à tenir moins de place. Cette disposition explique une portée extrêmement limitée.It should be noted that various solutions have been proposed to facilitate the integration of a radio receiver with such an engine. So EP-0-921 266-A2 proposes the direct placement of the radio receiver inside the motor tube. There is no explicit mention of the antenna layout. In the product marketed by TOPELECTRO International, in Spain, under the reference TOPELECTRO JUNIOR, the quarter wave antenna is disposed completely independently of the mains wire, partially wound on itself so as to take up less space. This provision explains an extremely limited scope.

Dans le brevet FR-2 743 390 , le récepteur radio est disposé dans un boîtier de commande indépendant du tube moteur, mais d'intégration facile au caisson de volet roulant ou à une fixation de store. Il n'est aucunement fait mention d'une disposition particulière de l'antenne au sein de ce boîtier.In the patent FR-2 743 390 , the radio receiver is arranged in a control box independent of the motor tube, but easy integration with the rolling shutter box or a blind fastener. There is no mention of a particular arrangement of the antenna within this housing.

Il a aussi été proposé, dans des applications distinctes, d'utiliser le câble d'alimentation du secteur comme support mécanique d'une antenne. Des exemples de dispositif commandés par radio, présentant une antenne s'étendant le long du câble d'alimentation du secteur mais sans couplage au secteur, sont proposés dans US-A-2 218 830 , GB-A-340 389 , US-A-6 104 920 , US-A-5 351 284 ou encore US-A-3 863 157 . US-A-2 218 830 propose une antenne pour récepteur radio ou télévision, présentant une antenne formée par un fil associé au câble d'alimentation; l'antenne est associée à ce câble de manière à minimiser le couplage entre l'antenne et le fil secteur. L'intérêt est d'avoir alors une antenne non directive et de longueur bien calibrée par le fabricant : ainsi le réglage du circuit HF ne dépend-il pas de paramètres variables, comme c'est le cas avec une antenne extérieure laissée à l'initiative de l'installateur. GB-A-340 389 propose, pour de tels récepteurs, d'utiliser directement comme antenne une portion du câble secteur, isolée en amont et en aval par deux circuits bouchons. A la fréquence du signal, tout se passe comme si le câble était un fil unique servant de brin d'aérien. Les deux bouchons assurent une isolation entre les signaux reçus par le câble faisant fonction d'antenne et les signaux du secteur. La figure 4 de US-A-6 104 920 propose un dispositif du même genre que ce brevet anglais. GB-A-702 525 propose une solution du même genre, pour des récepteurs de télévision. Le signal reçu sur la partie des conducteurs d'alimentation formant antenne est couplé dans le récepteur à l'aide d'une bobine de couplage et d'un câble coaxial.It has also been proposed, in separate applications, to use the power cable of the sector as mechanical support of an antenna. Examples of device ordered radio, with an antenna extending along the power cable of the sector but without coupling to the sector, are proposed in US-A-2,218,830 , GB-A-340389 , US-A-6,104,920 , US-A-5,351,284 or US-A-3,863,157 . US-A-2,218,830 proposes an antenna for radio or television receiver, having an antenna formed by a wire associated with the power cable; the antenna is associated with this cable so as to minimize the coupling between the antenna and the mains wire. The interest is then to have a non-directive antenna and of length well calibrated by the manufacturer: thus the setting of the circuit HF does not depend on variable parameters, as it is the case with an external antenna left with the initiative of the installer. GB-A-340389 proposes, for such receivers, to use directly as an antenna a portion of the mains cable, isolated upstream and downstream by two plug circuits. At the frequency of the signal, everything happens as if the cable was a single wire serving as aerial wire. The two plugs provide isolation between the signals received by the antenna cable and the mains signals. Figure 4 of US-A-6,104,920 proposes a device of the same kind as this English patent. GB-A-702,525 proposes a solution of the same kind, for television receivers. The signal received on the portion of the antenna feed conductors is coupled into the receiver using a coupling coil and a coaxial cable.

US-A-5 351 284 concerne la base d'un téléphone sans fil; l'antenne télescopique est remplacée par un fil couplé soit à la ligne téléphonique, soit au cordon secteur; il est précisé expressément que la ligne téléphonique ou le cordon secteur ne contribue pas à la réception de l'antenne. US-A-3 863 157 propose un dispositif du même genre, dans lequel les fils de liaison entre l'amplificateur d'un récepteur stéréo et les enceintes acoustiques sont aussi utilisés comme fils d'antenne; il est encore prévu une séparation des deux fonctions. Dans tous ces documents, l'objectif poursuivi est de remplacer un aérien fragile ou disgracieux par une portion d'un câble accepté pour d'autres raisons. Ces documents précisent en conséquence qu'il est important d'isoler les signaux reçus sur le câble servant d'aérien des signaux transmis sur le câble dans son utilisation habituelle. US-A-5,351,284 relates to the base of a cordless phone; the telescopic antenna is replaced by a wire coupled to either the telephone line or the mains cable; it is expressly stated that the telephone line or mains cable does not contribute to the reception of the antenna. US-A-3,863,157 proposes a device of the same kind, in which the connecting son between the amplifier of a stereo receiver and the speakers are also used as antenna son; there is still a separation of the two functions. In all these documents, the objective is to replace a fragile or unsightly aerial with a portion of a cable accepted for other reasons. These documents accordingly specify that it is important to isolate the signals received on the cable serving as aerial signals transmitted on the cable in its usual use.

US-A-4 032 723 montre un système téléphonique duplex sans cordon; un des éléments d'une antenne doublet est constitué d'un conducteur du câble secteur. L'enseignement de ce document est similaire à celui des documents précédentes - l'antenne étant toutefois d'un autre type. US-A-4,032,723 shows a cordless duplex telephone system; one of the elements of a doublet antenna consists of a conductor of the mains cable. The teaching of this document is similar to that of the previous documents - however the antenna is of another type.

Il a par ailleurs été proposé d'utiliser le secteur comme antenne réceptrice. La société BUBENDOREF commercialise sous la référence 'id' un moteur pour volets roulants à radio intégrée sans antenne spécifique, pour lequel le secteur est globalement utilisé comme antenne réceptrice, et utilisant une connexion électrique par condensateur entre la borne d'arrivée d'un fil secteur et le point d'entrée RF du circuit récepteur. Il faut noter qu'une telle disposition rend la carte électronique particulièrement sensible aux agressions des parasites énergétiques véhiculés par le secteur.It was also proposed to use the sector as a receiving antenna. The company BUBENDOREF sells under the reference 'id' a motor for shutters with integrated radio without specific antenna, for which the sector is globally used as receiver antenna, and using an electrical connection by capacitor between the terminal of arrival of a wire sector and the RF input point of the receiver circuit. It should be noted that such an arrangement makes the electronic card particularly sensitive to attacks by energy parasites carried by the sector.

Pour d'autres domaines de la technique, un enseignement analogue apparaît dans les documents US-A2 581 983 , US-A-3 290 601 , US-A-2 915 627 ou encore US-A-4 507 646 . US-A2 581 983 propose de coupler un circuit de réception radiofréquence au câble d'alimentation secteur d'un récepteur radio. Le point de couplage est distant d'un quart ou d'un huitième de longueur d'onde du châssis du récepteur, qui est à la masse. US-A-3 290 601 est une amélioration de ce brevet, et propose simplement de former une antenne doublet en associant au dispositif précédent une antenne monopole. US-A-2 915 627 propose une antenne pour récepteur radio. Un conducteur cylindrique d'une longueur comprise entre un quart et la moitié de la longueur d'onde des signaux radiofréquence entoure le câble d'alimentation; le conducteur cylindrique permet de transmettre à un récepteur radiofréquence les signaux radiofréquence reçus par le secteur, qui agit comme antenne. US-A-4 507 646 propose d'utiliser pour un système d'appel ("paging" en langue anglaise) les fils du secteur comme antenne de l'émetteur ou du récepteur; la nature du circuit de couplage du récepteur ou de l'émetteur radiofréquence vers le secteur n'est pas précisée.For other fields of technology, similar teaching appears in the documents US-A2 581 983 , US-A-3,290,601 , US-A-2 915 627 or US-A-4,507,646 . US-A2 581 983 proposes to couple a radiofrequency reception circuit to the power supply cable of a radio receiver. The coupling point is a quarter to one eighth wavelength away from the receiver chassis, which is grounded. US-A-3,290,601 is an improvement of this patent, and proposes simply to form a doublet antenna by associating with the preceding device a monopole antenna. US-A-2 915 627 offers an antenna for radio receiver. A cylindrical conductor of one-quarter to one-half the wavelength of the radio frequency signals surrounds the power cable; the cylindrical conductor transmits to a radio frequency receiver the radiofrequency signals received by the sector, which acts as an antenna. US-A-4,507,646 proposes to use the sector wires as an antenna of the transmitter or receiver for a paging system; the nature of the coupling circuit of the receiver or radiofrequency transmitter to the sector is not specified.

Les dispositifs décrits dans ces différents documents ont pour objectif d'éviter d'utiliser une antenne dédiée, en utilisant comme antenne les conducteurs du secteur. Cette solution implique de maîtriser avec précision le point de couplage du récepteur ou de l'émetteur radiofréquence aux conducteurs du secteur; faute d'une telle maîtrise du point de couplage, cette solution présente en fait de graves inconvénients en termes de sélectivité, et de susceptibilité aux parasites énergétiques à large bande véhiculés par le secteur. De plus, l'isolation galvanique peut imposer l'usage de condensateurs particulièrement protégés.The devices described in these various documents are intended to avoid using a dedicated antenna, using as antenna sector drivers. This solution involves precisely controlling the coupling point of the receiver or radiofrequency transmitter to the sector conductors; lack of such control of the coupling point, this solution actually has serious drawbacks in terms of selectivity, and susceptibility to broadband energy parasites carried by the sector. In addition, the galvanic isolation may require the use of particularly protected capacitors.

L'invention propose, dans le cas spécifique des moteurs tubulaires, une solution qui permet de commander un moteur par radio, avec une bonne fiabilité. La solution s'applique à tous les environnements d'utilisation de ces moteurs; elle est simple à mettre en oeuvre.The invention proposes, in the specific case of tubular motors, a solution that makes it possible to control a motor by radio, with good reliability. The solution applies to all operating environments of these engines; it is simple to implement.

Plus précisément, l'invention propose un dispositif d'entraînement présentant un moteur, un circuit radiofréquence de commande du moteur, des conducteurs d'alimentation électrique du moteur et du circuit radiofréquence et une antenne reliée au circuit radiofréquence et couplée électriquement pour les radiofréquences à au moins un des conducteurs par un couplage non galvanique, alors que le moteur, le circuit radiofréquence et l'antenne sont disposés dans un tube de moteur métallique.More specifically, the invention proposes a drive device having a motor, a radio frequency control circuit of the motor, motor power supply conductors and radio frequency circuit and an antenna connected to the radio frequency circuit and electrically coupled for radio frequencies to at least one of the conductors by a non-galvanic coupling, while the motor, the radio frequency circuit and the antenna are arranged in a metal motor tube.

Avantageusement, la puissance reçue ou émise en partie directement à travers l'antenne représente plus de 5%, voire 10% de la puissance reçue ou émise par le circuit radiofréquence.Advantageously, the power received or partially transmitted directly through the antenna represents more than 5%, or even 10% of the power received or transmitted by the radio frequency circuit.

De préférence, la puissance reçue ou émise en partie directement à travers l'antenne représente moins de 50%, voire moins de 40% de la puissance reçue ou émise par le circuit radiofréquence.Preferably, the power received or partially transmitted directly through the antenna represents less than 50% or even less than 40% of the power received or transmitted by the radio frequency circuit.

Dans un mode de réalisation, l'antenne est couplée mécaniquement aux conducteurs. L'antenne peut être une antenne monopole, et dans ce cas, elle peut présenter une longueur voisine d'un quart de la longueur d'onde des signaux radiofréquence reçus ou émis par le circuit radiofréquence.In one embodiment, the antenna is mechanically coupled to the conductors. The antenna may be a monopole antenna, and in this case it may have a length close to a quarter of the wavelength of the radiofrequency signals received or transmitted by the radio frequency circuit.

Il est encore possible de prévoir que l'antenne est formée d'une piste de circuit imprimé. Dans ce cas, il est avantageux qu'au moins un conducteur présente une piste de circuit imprimé s'étendant parallèlement à la piste formant l'antenne.It is still possible to provide that the antenna is formed of a printed circuit track. In this case, it is advantageous that at least one conductor has a printed circuit track extending parallel to the track forming the antenna.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui suit de modes de réalisation de l'invention, donnée à titre d'exemple et en référence aux dessins annexés qui montrent:

  • figure 1 une vue schématique en coupe d'un dispositif d'entraînement selon l'invention;
  • figure 2 une vue schématique partielle d'un autre mode de réalisation d'un dispositif d'entraînement
Other features and advantages of the invention will appear on reading the following description of embodiments of the invention, given by way of example and with reference to the appended drawings which show:
  • figure 1 a schematic sectional view of a drive device according to the invention;
  • figure 2 a partial schematic view of another embodiment of a training device

L'invention propose, pour la commande radio d'un moteur, d'utiliser une antenne monopole et de coupler cette antenne aux conducteurs d'alimentation électrique du moteur, par un couplage non galvanique; l'antenne est ainsi couplée aux conducteurs pour les radiofréquences, mais est isolé de ceux-ci à la fréquence des courants d'alimentation. De la sorte, la puissance radiofréquence émise ou reçue l'est

  • en partie par l'antenne, qui agit comme une antenne classique;
  • en partie à travers le secteur, qui agit comme antenne.
The invention proposes, for the radio control of an engine, to use a monopole antenna and to couple this antenna to the power supply conductors of the motor, by a non-galvanic coupling; the antenna is thus coupled to the conductors for radio frequencies, but is isolated from them at the frequency of the supply currents. In this way, the radiofrequency power emitted or received is
  • partly by the antenna, which acts as a conventional antenna;
  • partly through the sector, which acts as an antenna.

L'invention diffère de la solution de l'état de la technique décrite dans US-A-2 218 830 ou dans les documents similaires. En effet, l'antenne est couplée électriquement aux conducteurs d'alimentation électrique, de telle sorte que les signaux radiofréquence sont au moins en partie reçus ou émis à travers les conducteurs d'alimentation du secteur. Cette configuration est notamment avantageuse lorsque le moteur se trouve dans un caisson en acier ou en aluminium, qui peut limiter la propagation des ondes électromagnétiques.The invention differs from the solution of the state of the art described in US-A-2,218,830 or in similar documents. Indeed, the antenna is electrically coupled to the power supply conductors, so that the radio frequency signals are at least partly received or emitted through the mains supply conductors. This configuration is particularly advantageous when the engine is in a steel or aluminum box, which can limit the propagation of electromagnetic waves.

L'invention diffère aussi de la solution de l'état de la technique proposée dans US-A2 581 983 ou dans les documents similaires; en effet, dans ces documents, il n'est pas prévu d'antenne recevant ou émettant directement une partie de la puissance rayonnée ou émise. Comme l'invention ne repose pas uniquement sur le secteur, elle assure une réception ou une émission plus efficace.The invention also differs from the state-of-the-art solution proposed in US-A2 581 983 or in similar documents; indeed, in these documents, there is no antenna receiving or emitting directly part of the radiated power or emitted. Since the invention is not based solely on the sector, it ensures a more efficient reception or emission.

La solution de l'invention permet de résoudre les problèmes des moteurs de l'état de la technique. Comme l'antenne est couplée électriquement aux fils du secteur, il est possible de disposer l'antenne à l'intérieur d'un tube métallique contenant le moteur et son circuit de commande. L'antenne ne dépasse donc pas du tube, et ne risque pas d'être endommagée lors du transport ou du montage.The solution of the invention makes it possible to solve the problems of the engines of the state of the art. Since the antenna is electrically coupled to the mains wires, it is possible to arrange the antenna inside a metal tube containing the motor and its control circuit. The antenna does not protrude from the tube and will not be damaged during transport or assembly.

La figure 1 montre une vue schématique en coupe d'un dispositif d'entraînement selon un premier mode de réalisation de l'invention. Le dispositif 2 présente un tube 4, ou tube de moteur. Le tube de moteur est typiquement de forme cylindrique. Il est souvent en métal, ce qui assure la rigidité mécanique nécessaire; il peut aussi être en plastique. Autour du tube de moteur est prévu un tube d'enroulement 9, le plus souvent en métal. Ce tube d'enroulement est monté sur deux supports 6 et 8, le support 6 étant à l'une des extrémités du tube 4. Les deux supports incluent un palier facilitant la rotation du tube d'enroulement. Ce tube 9 reçoit l'extrémité du volet ou du store à enrouler.The figure 1 shows a schematic sectional view of a driving device according to a first embodiment of the invention. The device 2 has a tube 4, or tube engine. The motor tube is typically cylindrical in shape. It is often made of metal, which ensures the necessary mechanical rigidity; it can also be plastic. Around the engine tube is provided a winding tube 9, usually metal. This winding tube is mounted on two supports 6 and 8, the support 6 being at one end of the tube 4. The two supports include a bearing facilitating the rotation of the winding tube. This tube 9 receives the end of the shutter or awning to be wound.

A l'intérieur du tube de moteur 4 est prévu un moteur 10 électrique, qui est capable d'entraîner en rotation le tube d'enroulement 9, par rapport au tube de moteur 4, à l'aide d'une roue d'entraînement 11. Le dispositif comprend en outre, toujours à l'intérieur du tube de moteur 4, un circuit radiofréquence 12 de commande du moteur. Ce circuit est susceptible de recevoir ou d'émettre des signaux radiofréquence, comme expliqué plus bas. On entend ici par "radiofréquence" les plages de fréquence comprises entre 100 et 1000 MHz, avec une transmission à travers l'air sur des distances courtes - de l'ordre de 10 à 1000 m en champ libre.Inside the motor tube 4 is provided an electric motor 10, which is capable of rotating the winding tube 9, with respect to the motor tube 4, by means of a drive wheel 11. The device further comprises, always inside the motor tube 4, a radiofrequency circuit 12 for controlling the motor. This circuit is capable of receiving or transmitting radio frequency signals, as explained below. The term "radiofrequency" is used here to mean the frequency ranges between 100 and 1000 MHz, with transmission through the air over short distances - of the order of 10 to 1000 m in free field.

Le circuit 12 commande le moteur en fonction des signaux reçus et/ou des signaux émis. Le moteur et le circuit radiofréquence sont alimentés en puissance par des conducteurs 14 destinés à être reliés au réseau électrique.The circuit 12 controls the motor according to the received signals and / or the transmitted signals. The motor and the radio frequency circuit are powered by conductors 14 intended to be connected to the electrical network.

Le dispositif présente en outre une antenne 16. Cette antenne est d'une part reliée au circuit radiofréquence, de sorte que les signaux radiofréquence reçus par l'antenne soient appliqués au circuit et/ou de sorte que les signaux radiofréquence fournis par le circuit soient rayonnés par l'antenne. L'antenne est typiquement une antenne quart d'onde, formée d'un conducteur allongé présentant une longueur de l'ordre du quart de la longueur d'onde de la fréquence utilisée pour la commande du moteur; les plages de fréquence courantes pour les applications domotiques sont de 433 MHz ou 868 MHz, ce qui conduit à une longueur d'antenne de 17 ou 8 cm environ. Dans la version la plus simple, l'antenne sera un monopole. Comme le montre la figure, l'antenne s'étend entièrement dans le tube de moteur 4; ceci présente l'avantage que l'antenne est ainsi protégée par le tube. Les problèmes de fragilité de l'antenne ou d'installation de celle-ci ne se posent donc plus.The device also has an antenna 16. This antenna is firstly connected to the radiofrequency circuit, so that the radiofrequency signals received by the antenna are applied to the circuit and / or so that the radiofrequency signals supplied by the circuit are radiated by the antenna. The antenna is typically a quarter-wave antenna, formed of an elongated conductor having a length of the order of a quarter of the wavelength of the frequency used for the control of the engine; the common frequency ranges for home automation applications are 433 MHz or 868 MHz, which leads to an antenna length of about 17 or 8 cm. In the simplest version, the antenna will be a monopoly. As shown in the figure, the antenna extends entirely into the motor tube 4; this has the advantage that the antenna is thus protected by the tube. The problems of fragility of the antenna or installation of it no longer arise.

L'antenne 16 est aussi couplée électriquement à au moins un des conducteurs 14 d'alimentation électrique du moteur et du circuit de puissance. Le couplage électrique entre le ou les conducteurs 14 et l'antenne 16 permet au circuit radiofréquence de recevoir, à travers l'antenne, des signaux radiofréquences captés par le réseau électrique; le réseau peut donc servir d'antenne de réception des signaux radiofréquence à destination du circuit de commande du moteur. Inversement, le couplage électrique entre le ou les conducteurs 14 et l'antenne 16 permet au circuit radiofréquence d'émettre à travers l'antenne 16 des signaux radiofréquence vers le réseau électrique; le réseau électrique peut donc servir d'antenne d'émission pour des signaux radiofréquence émis par le circuit de commande du moteur.The antenna 16 is also electrically coupled to at least one of the power supply conductors 14 of the motor and the power circuit. The electrical coupling between the conductor (s) 14 and the antenna 16 enables the radio frequency circuit to receive, through the antenna, radio frequency signals picked up by the electrical network; the network can therefore serve as an antenna for receiving radio frequency signals for the motor control circuit. Conversely, the electrical coupling between the conductor (s) 14 and the antenna 16 allows the radio frequency circuit to transmit through the antenna 16 radiofrequency signals to the electrical network; the electrical network can therefore act as a transmitting antenna for radiofrequency signals emitted by the motor control circuit.

Le couplage entre l'antenne et le ou les conducteurs 14 est un couplage à la fois non galvanique et sélectif; autrement dit, l'antenne et le conducteur sont couplés électriquement pour des signaux dans des plages de radiofréquence utilisées pour la commande du moteur; toutefois, aux fréquences d'alimentation électrique du moteur, l'antenne et les conducteurs sont isolés. Ce couplage non galvanique peut s'effectuer de diverses façons; le plus simple est, comme représenté à la figure 1, que l'antenne s'étende au voisinage des conducteurs; la distance entre le ou les conducteurs et l'antenne peut être aussi faible que possible et correspondre simplement à l'épaisseur de l'isolant entourant les conducteurs; cette configuration a l'avantage de maximiser le couplage entre l'antenne et les conducteurs pour les radiofréquences.The coupling between the antenna and the conductor (s) 14 is a coupling that is both non-galvanic and selective; that is, the antenna and the conductor are electrically coupled for signals in radiofrequency ranges used for motor control; however, at the power frequencies of the motor, the antenna and the conductors are isolated. This non-galvanic coupling can be carried out in various ways; the simplest is, as represented in figure 1 , that the antenna extends in the vicinity of the conductors; the distance between the conductor (s) and the antenna can be as small as possible and simply correspond to the thickness of the insulation surrounding the conductors; this configuration has the advantage of maximizing the coupling between the antenna and the drivers for radio frequencies.

Il est aussi possible de coupler mécaniquement l'antenne aux conducteurs; ceci facilite le montage du dispositif d'entraînement. Un procédé simple consiste à faire passer les conducteurs et le brin d'antenne dans une même gaine isolante, éventuellement thermorétractable; un tel couplage mécanique assure un bonne proximité des conducteurs et du brin d'antenne, et donc un bon couplage électrique.It is also possible to mechanically couple the antenna to the conductors; this facilitates the mounting of the drive device. A simple method consists in passing the conductors and the antenna wire in the same insulating sheath, possibly heat-shrinkable; such a mechanical coupling ensures a good proximity of the conductors and the antenna wire, and therefore a good electrical coupling.

La figure 1 montre encore en traits pointillés les limites d'un caisson 18 dans lequel est placé le dispositif d'entraînement; ce caisson est un caisson souvent métallique en acier ou en aluminium; il reçoit le tube d'enroulement ainsi que le store ou le volet roulant lorsque celui-ci est dans une position repliée. Le caisson peut alors être entièrement fermé; c'est notamment le cas pour les caissons de stores extérieurs, qui sont clos lorsque le store est replié. Dans une telle configuration, l'antenne 16 est entourée d'abord par le tube du moteur 4, puis par le tube d'enroulement 9, puis par le caisson; les conducteurs 14 sortent en revanche du tube de moteur comme du caisson, pour pouvoir être reliés au secteur. Il est toutefois manifeste que la position exacte de la connexion entre les conducteurs 14 et le réseau électrique est sans incidence sur le fonctionnement du dispositif.The figure 1 still shows in dotted lines the boundaries of a box 18 in which the drive device is placed; this box is a box often metal steel or aluminum; it receives the winding tube and the blind or roller shutter when it is in a folded position. The box can then be fully closed; this is particularly the case for the boxes of external blinds, which are closed when the blind is folded. In such a configuration, the antenna 16 is surrounded firstly by the tube of the motor 4, then by the winding tube 9, then by the box; the conductors 14 come out against the engine tube as the box, to be connected to the sector. It is clear, however, that the exact position of the connection between the conductors 14 and the electrical network does not affect the operation of the device.

Le dispositif de la figure 1 fonctionne comme expliqué maintenant. Il peut fonctionner d'une part en réception, par exemple pour transmettre au dispositif d'entraînement un ordre de fonctionnement - dans le cas d'un store ou d'un volet roulant, un ordre d'enroulement ou de déroulement du store, ou encore un ordre d'arrêt de l'enroulement ou du déroulement. Il peut fonctionner d'autre part en émission, pour transmettre une information relative à l'état du dispositif d'entraînement - par exemple un accusé de réception d'une commande, ou encore une information sur la position du dispositif d'entraînement ou sa vitesse; dans ce cas, il est bien entendu abusif de qualifier le circuit 12 de circuit de "commande", puisque la commande du moteur peut être exécutée par d'autres moyens; on utilise néanmoins ce terme pour plus de simplicité dans la présente description. Le fonctionnement en émission et le fonctionnement en réception sont similaires, et seul est décrit de façon détaillée le fonctionnement en réception.The device of the figure 1 works as explained now. It can operate on the one hand in reception, for example to transmit to the driving device an order of operation - in the case of a blind or roller shutter, a winding or unwinding order of the blind, or still a stop order of winding or unwinding. It can also operate in transmission, to transmit information relating to the state of the training device - for example an acknowledgment of receipt of a command, or information on the position of the training device or its speed; in this case, it is of course unreasonable to describe circuit 12 as a "control" circuit, since the control of the motor can be executed by other means; however, this term is used for simplicity in the present description. The operation in transmission and the operation in reception are similar, and only the operation in reception is described in detail.

En réception, des signaux radiofréquence sont transmis par un émetteur - par exemple un émetteur portable - vers le dispositif d'entraînement. Ces signaux sont d'une part reçus directement par l'antenne 16, et sont donc appliqués au circuit de commande, pour y être décodés et exécutés. D'autre part, les signaux sont aussi reçus par les conducteurs du secteur - qui agissent comme antenne. Du fait du couplage électrique dans le domaine des radiofréquences entre les conducteurs 14 et l'antenne, les signaux radiofréquence reçus par les conducteurs sont transmis à l'antenne 16 et donc appliqués au circuit de commande. Celui-ci reçoit donc :

  • les signaux directement reçus par l'antenne 16, et
  • les signaux reçus par les conducteurs d'alimentation et couplés à l'antenne 16.
In reception, radiofrequency signals are transmitted by a transmitter - for example a portable transmitter - to the training device. These signals are on the one hand received directly by the antenna 16, and are therefore applied to the control circuit, to be decoded and executed. On the other hand, the signals are also received by the drivers of the sector - who act as antenna. Due to the electrical coupling in the radio frequency range between the conductors 14 and the antenna, the radiofrequency signals received by the conductors are transmitted to the antenna 16 and thus applied to the control circuit. He therefore receives:
  • the signals directly received by the antenna 16, and
  • the signals received by the supply conductors and coupled to the antenna 16.

Les ordres appliqués au circuit de commande sont transmis par celui-ci au moteur, de sorte à entraîner le tube d'enroulement en rotation dans un sens ou dans l'autre, ou à interrompre sa rotation.The commands applied to the control circuit are transmitted by the latter to the motor, so as to drive the winding tube in rotation in one direction or the other, or to interrupt its rotation.

La demanderesse a procédé à des essais de réception d'un dispositif d'entraînement selon l'invention, par rapport à un dispositif sans couplage électrique de l'antenne et du ou des conducteurs d'alimentation; le couplage lors des essais était obtenu en disposant l'antenne au voisinage des conducteurs, à une distance de 2 mm, sur presque toute la longueur (14 cm) de l'antenne (17 cm); pour une fréquence de 433 MHz. Les essais ont été réalisés en chambre semi anéchoïque. Ils ont démontré que la proportion de signaux reçus directement par l'antenne ou à travers les conducteurs d'alimentation dépendait de l'orientation du dispositif d'entraînement. Cette proportion entre

  • les signaux reçus directement par l'antenne; et
  • la puissance totale reçue par le circuit radiofréquence
variait entre 3 et 40% avec une moyenne de 21%. Il est donc préférable que cette proportion soit supérieure à 5 %, voire supérieure à 10%; ceci est assuré par la seule présence de l'antenne. Il est aussi préférable que cette proportion soit inférieure à 50%, voire 40%; ceci est assuré par le couplage non galvanique entre l'antenne et le ou les conducteurs. La proportion diminue d'autant plus que le tube d'enroulement limite la propagation des ondes radiofréquences; elle diminue aussi si le dispositif d'enroulement est dans un caisson métallique. Les bornes proposées assurent un fonctionnement correct dans toutes les circonstances habituellement rencontrées dans les bâtiments.The Applicant has carried out acceptance tests of a drive device according to the invention, with respect to a device without electrical coupling of the antenna and the supply conductor or conductors; the coupling during the tests was obtained by placing the antenna in the vicinity of the conductors, at a distance of 2 mm, over almost the entire length (14 cm) of the antenna (17 cm); for a frequency of 433 MHz. The tests were carried out in a semi anechoic chamber. They demonstrated that the proportion of signals received directly from the antenna or through the supply conductors depended on the orientation of the training device. This proportion between
  • the signals received directly by the antenna; and
  • the total power received by the radio frequency circuit
ranged between 3 and 40% with an average of 21%. It is therefore preferable that this proportion be greater than 5%, or even greater than 10%; this is ensured by the mere presence of the antenna. It is also preferable that this proportion be less than 50% or even 40%; this is ensured by the non-galvanic coupling between the antenna and the conductor (s). The proportion decreases all the more as the winding tube limits the propagation of radiofrequency waves; it also decreases if the winding device is in a metal box. The proposed terminals ensure proper operation in all circumstances usually encountered in buildings.

A titre de comparaison, lorsqu'on compare des moteurs seuls, identiques mais l'un (MA) avec l'antenne extérieure au tube 4 en acier, comme déjà commercialisé par la demanderesse, et l'autre (MB) avec l'antenne selon l'invention, les signaux radiofréquence en entrée du circuit de commande présentent dans le deuxième cas une puissance inférieure de 10 dB à la puissance correspondante dans le premier cas; cet affaiblissement est représentatif de l'affaiblissement causé par le tube de moteur -- l'antenne étant disposée dans le tube de moteur. L'invention a donc pour effet de détériorer la performance d'un moteur non encore installé.By way of comparison, when comparing single, identical motors but one (MA) with the antenna outside the tube 4 made of steel, as already marketed by the applicant, and the other (MB) with the antenna according to the invention, the radiofrequency signals at the input of the control circuit have in the second case a power 10 dB lower than the corresponding power in the first case; this attenuation is representative of the attenuation caused by the motor tube - the antenna being arranged in the motor tube. The invention therefore has the effect of deteriorating the performance of an engine not yet installed.

En revanche, lorsque le dispositif MB est à l'intérieur d'un tube d'enroulement et d'un caisson métallique, correspondant aux conditions typiques d'utilisation, les signaux radiofréquence en entrée du circuit de commande présentent une puissance supérieure de 3 dB à la puissance correspondante dans un dispositif MA également placé dans un tube d'enroulement et un caisson; cette augmentation de puissance est représentative de l'effet du couplage non-galvanique entre les conducteurs d'alimentation et l'antenne dans le dispositif de l'invention.On the other hand, when the device MB is inside a winding tube and a metal box, corresponding to the typical conditions of use, the radiofrequency signals at the input of the control circuit have a higher power of 3 dB to the corresponding power in an MA device also placed in a winding tube and a box; this increase in power is representative of the effect of the non-galvanic coupling between the supply conductors and the antenna in the device of the invention.

La figure 2 montre une vue partielle schématique d'un autre mode de réalisation. Dans le mode de réalisation de la figure 2, l'antenne a la forme d'une piste 22 d'un circuit imprimé 24. Le couplage peut alors être simplement réalisé en utilisant pour le ou les conducteurs une ou deux pistes 26 ou 28 voisines de la piste matérialisant l'antenne.The figure 2 shows a schematic partial view of another embodiment. In the embodiment of the figure 2 , the antenna has the shape of a track 22 of a printed circuit 24. The coupling can then simply be achieved by using for the conductor or drivers one or two tracks 26 or 28 adjacent the track materializing the antenna.

Le dispositif de l'invention est remarquable en ce qu'il évite les problèmes lors du montage du dispositif, lors de son installation, comme lors de son utilisation courante.The device of the invention is remarkable in that it avoids problems during assembly of the device, during its installation, as during its current use.

Bien entendu, la présente invention n'est pas limitée aux exemples et modes de réalisation décrits et représentés, mais elle est susceptible de nombreuses variantes accessibles à l'homme de l'art. On pourrait ainsi utiliser des configurations distinctes de celles des figures, à condition par exemple que le moteur soit livré avec le cordon d'alimentation, ce qui n'est pas toujours le cas. Dans une telle situation, le cordon serait réalisé de manière spécifique, et contiendrait, au niveau de l'extrémité à raccorder au moteur, le brin d'antenne ou une portion de celui-ci. Une telle disposition permettrait d'avoir, au moins partiellement l'antenne à l'extérieur du tube moteur et/ou du tube d'enroulement, et donc de mieux répartir encore les puissances de signal de commande transmises en direct ou par les fils d'alimentation. Il est aussi possible que l'antenne s'étende à l'extérieur du tube de moteur, même dans le cas où le cordon d'alimentation est livré avec le moteur.Of course, the present invention is not limited to the examples and embodiments described and shown, but it is capable of many variants accessible to those skilled in the art. One could thus use configurations different from those of the figures, provided for example that the engine is delivered with the power cord, which is not always the case. In such a situation, the bead would be made specifically, and contain, at the end to be connected to the motor, the antenna strand or a portion thereof. Such an arrangement would make it possible, at least partially, to have the antenna outside the motor tube and / or the winding tube, and thus to better distribute the control signal powers transmitted directly or by the wires. 'food. It is also possible that the antenna extends outside the motor tube, even in the case where the power cord is delivered with the motor.

Il est aussi clair que l'invention n'est pas limitée au mode de réalisation préféré des volets roulants ou des stores. Elle s'applique plus généralement à tous les dispositifs d'entraînement, comme ceux des portes de garage, des fauteuils ou des lits articulés, ou autres.It is also clear that the invention is not limited to the preferred embodiment of roller shutters or blinds. It applies more generally to all training devices, such as those of garage doors, chairs or articulated beds, or other.

Claims (8)

  1. Driving device (2), having:
    - a motor (10);
    - a radio frequency circuit (12) to control the motor;
    - conductors (14) for power supply to the motor and radio frequency circuit;
    - an antenna (16) connected to the radio frequency circuit,
    where the motor (10), the radio frequency circuit (12) and the antenna (16), are located in a motor tube (4)
    characterized in that
    - the antenna (16) is coupled electrically for radio frequencies to at least one of the conductors, by non-galvanic coupling.
    - the motor tube (4) is metallic
  2. Device of Claim 1, characterized in that the power which is received or emitted partly directly via the antenna (16) represents over 5% or even 10% of the power which the radio frequency circuit (12) receives or emits.
  3. Device of Claim 1 to 2, characterized in that the power which is received or emitted partly directly via the antenna (16) represents under 50% or even 40% of the power which the radio frequency circuit (12) receives or emits.
  4. Device of Claim 1 to 3, characterized in that the antenna (16) is coupled mechanically to the conductors (14).
  5. Device of anyone of claims 1 to 4 characterized in that the antenna (16) is a single-pole antenna.
  6. Device of Claim 5, characterized in that the antenna (16) has a length close to a quarter of the wavelength of the radio frequency signals which the radio frequency circuit receives or emits.
  7. Device of any one of Claims 1 to 6, characterized in that the antenna is formed by a track (22) of a printed circuit (24).
  8. Device of Claim 7, characterized in that at least one conductor (14) has a printed circuit track (26, 28) which extends parallel to the track forming the antenna.
EP11162621.4A 2001-06-01 2002-05-07 Radio-controlled drive device Expired - Lifetime EP2345789B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0107249A FR2825498B1 (en) 2001-06-01 2001-06-01 RADIO FREQUENCY DRIVE DEVICE
EP02738219A EP1397576B1 (en) 2001-06-01 2002-05-07 Device for radio-frequency controlled drive

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP02738219A Division EP1397576B1 (en) 2001-06-01 2002-05-07 Device for radio-frequency controlled drive
EP02738219.1 Division 2002-05-07

Publications (2)

Publication Number Publication Date
EP2345789A1 EP2345789A1 (en) 2011-07-20
EP2345789B1 true EP2345789B1 (en) 2016-02-17

Family

ID=8863901

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11162621.4A Expired - Lifetime EP2345789B1 (en) 2001-06-01 2002-05-07 Radio-controlled drive device
EP02738219A Expired - Lifetime EP1397576B1 (en) 2001-06-01 2002-05-07 Device for radio-frequency controlled drive

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP02738219A Expired - Lifetime EP1397576B1 (en) 2001-06-01 2002-05-07 Device for radio-frequency controlled drive

Country Status (8)

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US (1) US7151464B2 (en)
EP (2) EP2345789B1 (en)
JP (1) JP4112487B2 (en)
CN (1) CN1225593C (en)
AT (1) ATE548537T1 (en)
ES (2) ES2567035T3 (en)
FR (1) FR2825498B1 (en)
WO (1) WO2002097230A1 (en)

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Also Published As

Publication number Publication date
US7151464B2 (en) 2006-12-19
US20040162040A1 (en) 2004-08-19
EP1397576B1 (en) 2012-03-07
WO2002097230A1 (en) 2002-12-05
JP2004527200A (en) 2004-09-02
FR2825498B1 (en) 2003-09-26
EP2345789A1 (en) 2011-07-20
ES2381661T3 (en) 2012-05-30
FR2825498A1 (en) 2002-12-06
CN1463320A (en) 2003-12-24
JP4112487B2 (en) 2008-07-02
ES2567035T3 (en) 2016-04-19
CN1225593C (en) 2005-11-02
EP1397576A1 (en) 2004-03-17
ATE548537T1 (en) 2012-03-15

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