EP3663502A1 - System for detecting breaking in and transmitting for a roller shutter - Google Patents

System for detecting breaking in and transmitting for a roller shutter Download PDF

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Publication number
EP3663502A1
EP3663502A1 EP19213696.8A EP19213696A EP3663502A1 EP 3663502 A1 EP3663502 A1 EP 3663502A1 EP 19213696 A EP19213696 A EP 19213696A EP 3663502 A1 EP3663502 A1 EP 3663502A1
Authority
EP
European Patent Office
Prior art keywords
blade
circuit
deformation
sensors
shutter
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.)
Granted
Application number
EP19213696.8A
Other languages
German (de)
French (fr)
Other versions
EP3663502B1 (en
Inventor
Thierry Boudet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Publication of EP3663502A1 publication Critical patent/EP3663502A1/en
Application granted granted Critical
Publication of EP3663502B1 publication Critical patent/EP3663502B1/en
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Classifications

    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
    • 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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E06B2009/1505—Slat details
    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • E06B2009/885—Braking mechanism activated by the bottom bar

Definitions

  • the present description generally relates to closing systems for doors and windows and other similar openings, in particular a rolling shutter.
  • a roller shutter for an opening such as a door or a window comprises an apron consisting of a juxtaposition of slats.
  • the blades have long sides, typically of horizontal orientation, which articulate with the long sides of the neighboring blades.
  • One embodiment overcomes all or part of the drawbacks of known roller shutters.
  • One embodiment overcomes all or part of the drawbacks of known burglar alarm systems for rolling shutters.
  • One embodiment provides a roller shutter blade having at least one blade strain sensor configured to provide at least one value representative of the blade strain.
  • the or each sensor comprises a strain gauge.
  • the strain gauge (s) are located in branches of a Wheatstone bridge.
  • the or at least one of the sensors is located on one face of the blade intended to be turned towards an interior side of the roller shutter.
  • the sensor or at least one of the sensors is located inside the blade.
  • the blade constitutes an end blade of a roller shutter.
  • the blade comprises a circuit configured to transmit a wireless signal based on at least one value supplied by the or at least one of the sensors.
  • the circuit is located inside the blade.
  • the circuit comprises an antenna located between first and second walls of the blade and opposite an opening in the first wall.
  • said circuit comprises an autonomous source of energy.
  • said wireless signal conveys said value or a result of a comparison of said value with a threshold.
  • One embodiment provides a roller shutter comprising at least one blade as defined above.
  • One embodiment provides an alarm center configured to receive, from a blade as defined above, said wireless signal.
  • One embodiment provides a method comprising a step of detecting a deformation of a shutter blade and supplying at least one value representative of the deformation of the blade.
  • One embodiment provides a method comprising a step consisting in capturing a deformation of a blade as defined above.
  • the method comprises the generation of an alarm signal.
  • the terms “approximately”, “approximately”, “substantially”, and “on the order of” mean to the nearest 10%, preferably to the nearest 5%, or, in the case of an orientation, to 10 degrees close, preferably to 5 degrees.
  • the figure 1 schematically represents an embodiment of a roller shutter 100 and an alarm center 102.
  • the roller shutter 100 is shown in the closed position in an opening 104.
  • the shutter 100 comprises an apron formed of juxtaposed blades 106 preferably having rectangular shapes.
  • the shutter 100 notably comprises an end strip 106A having a long side which, in the closed position, is in contact with a wall 105 of the opening 104, preferably the bottom wall or threshold of the opening.
  • the blades 106 have their long sides, preferably oriented horizontally, which are articulated from one blade to another to allow the flap 100 to pass from the closed position to an open position. In the open position, the flap is rolled up and / or above the opening 104.
  • the blades 106 have their ends located in slides 108, preferably vertical, located on either side of the opening 104. The slides 108 hold and guide the blades 106.
  • the terminal blade 106A comprises one or more deformation sensors 110.
  • the blade 106A comprises four deformation sensors 110.
  • the sensors are preferably connected to an electronic circuit 120 communicating with the central alarm 102 (WS signal).
  • the blade 106A can comprise less than four sensors 110, or more than four sensors 110.
  • the sensors 110 are carried by a blade other than the terminal blade.
  • the embodiments described are applicable to any shutter blade.
  • the figure 2 illustrates, in the form of blocks, an embodiment of a method implemented by the sensors 110, the circuit 120 and the alarm center 102 of the figure 1 .
  • the different stages are illustrated in dotted blocks indicating the elements by which they are implemented.
  • the sensors 110 and the circuit 120 detect a possible deformation of the blade. For this, at a step 130 (SENSE), the sensors 110 provide at least one value representative of the deformation. In a step 140 (COMPARE TO TH), the circuit 120 compares this value with a detection threshold TH. A deformation is detected if this value is greater than the detection threshold TH. Several values supplied by the sensors can be compared to respective detection thresholds or to a common detection threshold.
  • the circuit 120 transmits the result of the comparison 140 to the alarm center 102.
  • the transmission comprises a step 150 (SEND WS) of transmission by the circuit 120 of the wireless signal WS.
  • the signal WS conveys the result of the comparison 140.
  • the alarm center 102 receives the wireless signal WS.
  • a step 170 TAGGER
  • the alarm center generates an alarm signal A if a deformation has been detected.
  • a person seeking to pass through the opening closed by the roller shutter 100 generally attempts to deform the terminal blade in order to take its ends from the slides 108 and remove it.
  • a tool for levering such as a crowbar, is introduced between the terminal blade and the bottom wall of the opening. Once the terminal blade has been removed, the other blades can be removed one after the other from the bottom of the flap, if necessary also deforming them.
  • the detection of a deformation of at least one blade of the roller shutter, preferably the terminal blade makes it possible to detect a break-in.
  • the deformation detected preferably corresponds to a curvature of the blade or to several curvatures of parts of the blade.
  • the detected curvature (s) preferably have their convex sides facing upwards and / or inside the flap.
  • the inside of the flap corresponds, when the flap closes the opening, to the side inaccessible to a person seeking to enter through the break-in.
  • the alarm is generated as a function of a deformation of the blade, the risk is avoided that the alarm is generated by vibrations during normal movement of the shutter, for example during opening / closing or because of the wind. It also avoids the risk that the alarm is generated during a simple impact on the flap, for example at the end of closing or opening. There is thus less risk of generating an alarm in the absence of a break-in (false detection) than for a shutter which would be equipped for example with an accelerometer to detect a break-in.
  • the detection threshold TH is less than the smallest deformation, for example the greatest radius of curvature of the blade, making it possible to remove the blade from the slides 108.
  • the detection threshold can be below or beyond of the elastic limit of the blade.
  • the blade is made of polyvinyl chloride (PVC) or aluminum.
  • the sensors 110 are distributed along the blade, for example regularly. This makes it possible to detect break-ins by deformation of only part of the blade.
  • the circuit 120 comprises an antenna.
  • the circuit 120 furthermore preferably comprises a data processing unit such as a microprocessor, and a memory containing a program whose execution by the microprocessor causes, using a radio transmitter component located between the microprocessor and antenna, transmission of the WS signal by the antenna.
  • the wireless signal WS carries a first logic level when no value supplied by a sensor is greater than the detection threshold TH, and a second logic level if at least one value provided by one of the sensors 110 is greater than the detection threshold TH associated with this value.
  • the alarm center 102 comprises an antenna.
  • the alarm center 102 further preferably comprises a data processing unit such as a microprocessor, and a memory containing a program whose execution by the microprocessor causes the generation of the alarm signal A as a function of the result of comparison 140.
  • the alarm signal is generated for example as a function of the logic level conveyed by the wireless signal WS.
  • the alarm center also preferably includes a radio transmitter.
  • the circuit 120 transmits the value or values supplied by the sensors to the alarm center 102 without carrying out the comparison 140, and the comparison 140 is carried out by the alarm center 102.
  • the wireless signal WS emitted by the circuit 120 then conveys the value or values provided by the sensor (s) 110.
  • the wireless signal WS can be any signal carrying enough information for the alarm center to be able to carry out the comparison 140.
  • the figure 3 shows a schematic sectional view of an embodiment of the blade 106A of the roller shutter of the figure 1 .
  • the cutting plane passes through the or one of the sensors 110.
  • the terminal blade 106A is shown alone (without the rest of the flap or the opening).
  • the blade 106A can be placed in the roller shutter deck during the manufacture of the shutter or as a replacement for an end blade of the shutter after its manufacture.
  • the blade 106A comprises a profile 200 on which the sensor (s) 110 is located.
  • the profile 200 comprises a body 202 of generally elongated section vertically. Although a particular body of rectangular section is shown, the shape of the body 202 is compatible with the usual shapes of the shutter blade bodies.
  • the body 202 includes opposite faces 206I and 206E facing the interior and exterior sides of the flap, respectively.
  • the body 202 comprises a lower part 206L intended to be on the side of, for example in contact with, a wall of an opening when the shutter is closed.
  • the body 202 is hollow and includes walls 208I, 208E, 208L, 208H surrounding an interior space 210.
  • the walls 208I, 208E, 208L correspond to the faces respectively 206I, 206E and 206L, and the wall 208H is an upper wall of the body.
  • the profile 200 comprises, in its upper part, a structure 220 intended for the attachment and articulation of the blade 106A with another blade located above it.
  • a structure 220 intended for the attachment and articulation of the blade 106A with another blade located above it.
  • the shape of the structure 220 is compatible with the usual forms of structures for hooking and hinging shutter blades together.
  • the blade carrying the sensors is not the terminal blade, the blade further comprises, in its lower part, a structure intended for attachment and articulation with another blade located above below.
  • a sensor 110 is located on the face 206I facing the inside of the flap, preferably glued (glue 230).
  • the senor 110 comprises a substrate 240 having a plate shape.
  • the glue 230 then mechanically connects the substrate 240 to the face or to the wall whose deformation is captured by the gauge, here the face 206I or the wall 208I.
  • the substrate 240 is made of an electrical insulator such as a mixture of epoxy resin and glass fiber.
  • the senor 110 is located inside the blade 106A, for example in the space 210 of a hollow blade.
  • the sensor 110 is then located, for example glued, against the face of the wall 208I or 208E facing the side of the interior space 210 of the blade.
  • the sensor 110 is located inside a solid blade, for example fixed in a housing provided in the blade or included in the material of the blade.
  • the sensor (s) 110 are located inside the flap or against the wall 206I, they are not accessible from outside the flap. This avoids the risk of a person trying to neutralize the intrusion detection device.
  • the figure 4 schematically represents an embodiment of electronic circuit 120 of the blade of the figure 1 , connected to sensors 110. More specifically, the circuit is associated with a blade such as that of the figure 3 comprising four sensors 110 each comprising a substrate 240.
  • each sensor 110 comprises a respective strain gauge 305A, 305B, 305C, 305D, that is to say an element having an electrical characteristic, such as a resistance or a voltage, varying as a function of a strain S applied to this element.
  • This element is preferably a piezoresistor.
  • the piezoresistor is preferably constituted by a piezoresistive wire (not shown) located on one of the faces of the substrate 240 of the sensor considered.
  • the gauge captures a component of the deformation of the blade in a direction.
  • Thread piezoresistive comprises for example portions parallel to the sensed component.
  • the piezoresistive wire is typically made of an alloy based on nickel and / or copper and / or iron.
  • the substrate 240 is made of a doped semiconductor, for example made of silicon, and the piezoresistor is defined in a portion of the substrate.
  • the gauge has a nominal resistance of 1 kohm and a sensitivity of 2mV / V.
  • the gauges are located in the branches of a Wheatstone bridge 310.
  • the bridge 310 comprises two parallel branches 310A and 310B connecting two nodes 312H and 312L.
  • the branch 310A comprises the gauges 305B and 305C connected in series between the respective nodes 312L and 312H, and a node 312A located between the gauges 305B and 305C.
  • the branch 310B comprises the gauges 305A and 305D connected in series between the respective nodes 312L and 312H, and a node 312B located between the gauges 305A and 305D.
  • the circuit 120 preferably comprises a printed circuit 302 of the PCB (“Printed Circuit Board”) type.
  • the nodes 312A, 312B, 312H and 312L of the bridge 310 are located on the printed circuit 302.
  • Each sensor 110 is then connected by two electrically conductive wires 314 to the printed circuit 302.
  • the wires 314 connect each gauge 305A to 305D to two of the nodes 312A, 312B, 312H, and 312L.
  • the circuit 120 comprises a control circuit (CTRL) 320.
  • the circuit 120 preferably further comprises a supply circuit 330, an amplifier 340 and a radio frequency transmission circuit 345 (RF) connected to the control circuit 320.
  • An antenna 350 is connected to the circuit 345.
  • the circuits 320, 330, 345, the amplifier 340 and possibly the antenna 350 are mechanically integral with the printed circuit 302.
  • the supply circuit 330 comprises an autonomous energy source 332, for example a photoelectric cell, and / or an electrochemical generator such as a battery or a battery, and / or a storage of charges such as a capacity or supercapacity. Therefore, the blade is easier to put in place in a shutter than a shutter blade comprising a circuit supplied by a source external to the blade of the shutter.
  • an autonomous energy source 332 for example a photoelectric cell, and / or an electrochemical generator such as a battery or a battery, and / or a storage of charges such as a capacity or supercapacity. Therefore, the blade is easier to put in place in a shutter than a shutter blade comprising a circuit supplied by a source external to the blade of the shutter.
  • the control circuit 320 has two nodes VH and VL for applying a supply voltage to the Wheatstone bridge.
  • the nodes VH and VL are connected to the respective nodes 312H and 312L.
  • the amplifier 340 is for example of the operational instrumentation amplifier type and comprises an inverting input (-) and a non-inverting input (+).
  • the inverting and non-inverting inputs are connected to the respective nodes 312A and 312B.
  • the circuit 320 receives the output of the amplifier 340.
  • the amplifier 340 In operation, when the supply voltage of the Wheatstone bridge is applied by the circuit 320, the amplifier 340 provides at its output a value representative of the deformation of the blade.
  • the supply voltage is preferably a direct voltage, for example between 2.5 V and 10 V.
  • the supply voltage of the Wheatstone bridge is temporarily applied repeatedly, for example at regular intervals.
  • the duration of application is for example less than 0.1 s.
  • the deformation of the blade is not captured in the meantime, which makes it possible to limit the electrical consumption compared to a permanently applied power supply.
  • the duration between two consecutive temporary applications of the supply voltage is less than about 1 minute, from preferably less than 30 seconds. This duration is then less than the time necessary to remove the shutter blade by deforming it. This improves protection by avoiding the risk of undetected break-ins.
  • the gauges 305A to 305D, and possibly the lengths of the wires 314, are chosen so that, in the absence of deformation of the blade, the Wheatstone bridge is balanced, that is to say that the tension between the nodes 312H and 312L is less than one thousandth, preferably less than one ten thousandth of the supply voltage of the Wheatstone bridge.
  • This can be done for example by adding, in at least one of the branches of the bridge, an adjustable resistance, such as a potentiometer, in parallel with the gauge.
  • the potentiometer is preferably at 10 or 20 turns. This allows the balance of the Wheatstone bridge to be adjusted.
  • the gauges 305A and 305C pick up a longitudinal component, that is to say parallel to the long sides of the blade, and the gauges 305B and 305D pick up a transverse component.
  • the gauges 305A and 305C are located on the face 206I ( figure 3 , face inside of the shutter) and the gauges 305A and 305C are located inside the blade.
  • the gauges 305A and 305C preferably capture a compression / extension direction of deformation opposite to that measured by the gauges 305B and 305D.
  • gauges 305A and 305C capture a compression and the gauges 305B and 305D capture an extension.
  • the deformation of the blade causes a variation in the resistance of the gauges 305A and 305C different from that of the gauges 305B and 305D, preferably opposite.
  • the deformation unbalances more the Wheatstone bridge, and so is detected more reliably than if the gauges measure similar components of blade deformation.
  • the figure 5 schematically represents part of a variant of the circuit of the figure 4 , more precisely a variant of the Wheatstone 310 bridge of the figure 4 .
  • This variant differs from bridge 310 of the figure 4 in that the nodes 312H, 312A and 312B are located outside of the printed circuit 302, for example on links 410 connecting the sensors 110 in series, the terminals 412 at the ends of the series association replacing the node 312L.
  • the terminals 412 are connected to the node VL.
  • the connections 410 are for example conductive wires, preferably arranged parallel, or substantially parallel, to the long sides of the blade.
  • the nodes VL and VH can be exchanged.
  • the node VL is defined by a mass, for example the shutter blade in the case where the blade is made of a conductive material such as aluminum.
  • one or more of the sensors 110 of the figure 4 are replaced by one or more resistors, in the case of a blade comprising less than four strain gauges.
  • the resistors are then preferably located in the circuit 120.
  • the circuit 120 comprises several Wheatstone bridges, for the case of a blade comprising more than four strain gauges.
  • at least one of the sensors comprises several gauges on the same substrate, for example two gauges capturing different components of the deformation, or for example four gauges mounted in Wheatstone bridge.
  • the figure 6 shows another schematic sectional view of the blade 106A of the figure 3 . More specifically, the cutting plane of the figure 6 goes through antenna 350 of circuit 120.
  • the circuit 120 is located in the interior space 210 of the blade 106A, between the walls 208I and 208E.
  • the circuit comprises elements, including the antenna 350, located in a housing 510.
  • the antenna is situated outside the housing, for example in space 210.
  • the antenna is located opposite an opening 520 which preferably has the wall 208I. This opening allows, in the case of a blade made of a conductive material such as aluminum, to send a signal to the alarm center.
  • the blade is conductive and defines the antenna 350.
  • the opening 520 can then be omitted.
  • the figure 7 schematically represents another embodiment of the electronic circuit 120 of the blade of the figure 1 . More specifically, the circuit 120 comprises in this embodiment a control circuit 320 and a supply circuit 330 identical or similar to the circuits 320 and 330 of the embodiment of the figure 4 . These circuits 320 and 330 are shown here in more detail.
  • the circuit 120 is connected to one or more sensors connected in at least one Wheatstone bridge 310.
  • the control circuit 320 is connected by the RF circuit 345 to an antenna 350.
  • the circuit 320 applies a supply voltage to the bridge 310 and receives from the bridge 310 a value measured by the sensors, preferably via an amplifier 340 (AMP).
  • AMP amplifier 340
  • the blade 106A can comprise several circuits 120, for example each circuit 120 is associated with a sensor 110.
  • the alarm center 102 is then designed to receive several wireless signals coming from circuits 120.
  • each sensor 110 emits a signal conveying the result of the detection.
  • the alarm signal is then generated by the central 102 if only one of the sensors 110 has detected a deformation.
  • the blade 106A does not include the circuit 120, and the circuit 120 is located on another blade 106 of the shutter. Communication between the sensor (s) and the circuit can again be wired or wireless.
  • the circuit 320 preferably comprises an analog-digital converter 620 (ADC) which receives the measured value.
  • the converter 620 supplies a numerical value as a function of the measured value.
  • the circuit 320 preferably includes a sequential data processing unit, such as a microprocessor 630 (CPU), which receives the digital value.
  • the microprocessor 630 preferably executes a program stored in a memory not shown.
  • the circuit 320 preferably comprises a bus 640, for example a serial bus type SPI ("Serial Peripheral Interface"), connected to the microprocessor.
  • the program causes the microprocessor 630 to send information to the bus to send to the alarm center.
  • the microprocessor 630 communicates to the transmission circuit 345, via the SPI bus, parameters for transmission of the wireless signal, such as the type of modulation, the central frequency, the bit rate, or the transmission power.
  • the circuit 345 receives from the bus 640 the information to be sent and causes the emission by the antenna 350 of a wireless signal conveying this information.
  • the wireless communication between the circuit 320 and the alarm center is preferably secured by encryption or any means of securing the information transmitted.
  • the embodiments described are compatible with usual secure communications.
  • the circuit 330 preferably comprises an energy management unit 660 (PMU "Power Management Unit") connected to a photoelectric cell 670 and to an electrical energy storage device 680 such as a battery, preferably lithium, or a supercapacitor.
  • the photovoltaic cell is located on the face 206E ( figure 3 ) of the blade, facing the outside of the shutter.
  • the unit 660 supplies a supply voltage to the circuit 320 from the storage 680 and / or the photoelectric cell 670, and recharges the storage 680 when the photoelectric cell 670 produces energy.
  • the energy management unit can be the module known under the trade name "TI BQ25504".
  • the unit 660 comprises a circuit for extracting the energy received by the cell 670, of the type with maximum power point tracking (MPPT).
  • MPPT maximum power point tracking
  • the alarm signal generated by the central unit 102 comprises a signal emitted or transmitted by a communication network such as a telephone network, for example a wireless network, or the Internet network.
  • the alarm signal may also include an audible signal.
  • the embodiments described here are compatible with the usual types of alarm signals generated by an alarm center.
  • the alarm center 102 can take the form of any device configured to generate an alarm signal when a deformation of a blade is detected.
  • the signal generated by the circuit 120 is sent, preferably by wireless transmission, to a communication network such as a telephone network or the Internet.
  • the function of the alarm center is then provided by a device such as a mobile telephone or a computer, communicating, for example by an antenna or by wired connection, with the communication network.
  • the deformation sensor (s) can be capacitive or magnetic.

Abstract

La présente description concerne une lame (106A) de volet roulant (100) comportant au moins un capteur (110) de déformation de la lame.The present description relates to a roller shutter blade (106A) (100) comprising at least one blade deformation sensor (110).

Description

Domaine techniqueTechnical area

La présente description concerne de façon générale les systèmes de fermeture pour portes et fenêtres et autres ouvertures similaires, en particulier un volet roulant.The present description generally relates to closing systems for doors and windows and other similar openings, in particular a rolling shutter.

Technique antérieurePrior art

Un volet roulant pour une ouverture telle qu'une porte ou une fenêtre comprend un tablier constitué d'une juxtaposition de lames. Les lames ont des grands côtés, typiquement d'orientation horizontale, qui s'articulent avec les grands côtés des lames voisines.A roller shutter for an opening such as a door or a window comprises an apron consisting of a juxtaposition of slats. The blades have long sides, typically of horizontal orientation, which articulate with the long sides of the neighboring blades.

Il existe un besoin de protéger un volet roulant contre les effractions, en particulier de détecter une effraction.There is a need to protect a rolling shutter against break-ins, in particular to detect a break-in.

Résumé de l'inventionSummary of the invention

Un mode de réalisation pallie tout ou partie des inconvénients des volets roulants connus.One embodiment overcomes all or part of the drawbacks of known roller shutters.

Un mode de réalisation pallie tout ou partie des inconvénients des dispositifs connus d'alarme antieffraction pour volet roulant.One embodiment overcomes all or part of the drawbacks of known burglar alarm systems for rolling shutters.

Un mode de réalisation prévoit une lame de volet roulant comportant au moins un capteur de déformation de la lame configuré pour fournir au moins une valeur représentative de la déformation de la lame.One embodiment provides a roller shutter blade having at least one blade strain sensor configured to provide at least one value representative of the blade strain.

Selon un mode de réalisation, le ou chaque capteur comprend une jauge de contrainte.According to one embodiment, the or each sensor comprises a strain gauge.

Selon un mode de réalisation, la ou les jauges de contrainte sont situées dans des branches d'un pont de Wheatstone.According to one embodiment, the strain gauge (s) are located in branches of a Wheatstone bridge.

Selon un mode de réalisation, le ou au moins l'un des capteurs est situé sur une face de la lame destinée à être tournée vers un côté intérieur du volet roulant.According to one embodiment, the or at least one of the sensors is located on one face of the blade intended to be turned towards an interior side of the roller shutter.

Selon un mode de réalisation, le capteur ou au moins l'un des capteurs est situé à l'intérieur de la lame.According to one embodiment, the sensor or at least one of the sensors is located inside the blade.

Selon un mode de réalisation, la lame constitue une lame terminale de volet roulant.According to one embodiment, the blade constitutes an end blade of a roller shutter.

Selon un mode de réalisation, la lame comprend un circuit configuré pour émettre un signal sans fil basé sur au moins une valeur fournie par le ou au moins l'un des capteurs.According to one embodiment, the blade comprises a circuit configured to transmit a wireless signal based on at least one value supplied by the or at least one of the sensors.

Selon un mode de réalisation, le circuit est situé à l'intérieur de la lame.According to one embodiment, the circuit is located inside the blade.

Selon un mode de réalisation, le circuit comprend une antenne située entre des première et deuxième parois de la lame et en vis-à-vis d'une ouverture dans la première paroi.According to one embodiment, the circuit comprises an antenna located between first and second walls of the blade and opposite an opening in the first wall.

Selon un mode de réalisation, ledit circuit comprend une source autonome d'énergie.According to one embodiment, said circuit comprises an autonomous source of energy.

Selon un mode de réalisation, ledit signal sans fil véhicule ladite valeur ou un résultat d'une comparaison de ladite valeur à un seuil.According to one embodiment, said wireless signal conveys said value or a result of a comparison of said value with a threshold.

Un mode de réalisation prévoit un volet roulant comprenant au moins une lame telle que définie ci-dessus.One embodiment provides a roller shutter comprising at least one blade as defined above.

Un mode de réalisation prévoit une centrale d'alarme configurée pour recevoir, d'une lame telle que définie ci-dessus, ledit signal sans fil.One embodiment provides an alarm center configured to receive, from a blade as defined above, said wireless signal.

Un mode de réalisation prévoit un procédé comprenant une étape de détection d'une déformation d'une lame de volet roulant et de fourniture d'au moins une valeur représentative de la déformation de la lame.One embodiment provides a method comprising a step of detecting a deformation of a shutter blade and supplying at least one value representative of the deformation of the blade.

Un mode de réalisation prévoit un procédé comprenant une étape consistant à capter une déformation d'une lame telle que définie ci-dessus.One embodiment provides a method comprising a step consisting in capturing a deformation of a blade as defined above.

Selon un mode de réalisation, le procédé comprend la génération d'un signal d'alarme.According to one embodiment, the method comprises the generation of an alarm signal.

Brève description des dessinsBrief description of the drawings

Ces caractéristiques et avantages, ainsi que d'autres, seront exposés en détail dans la description suivante de modes de réalisation particuliers faite à titre non limitatif en relation avec les figures jointes parmi lesquelles :

  • la figure 1 représente schématiquement un mode de réalisation d'un volet roulant et d'une centrale d'alarme ;
  • la figure 2 illustre, sous forme de blocs, un mode de réalisation d'un procédé mis en oeuvre par des éléments du volet de la figure 1 et la centrale d'alarme de la figure 1.
  • la figure 3 représente une vue schématique en coupe d'un mode de réalisation d'une lame du volet roulant de la figure 1 ;
  • la figure 4 représente schématiquement un exemple de circuit électronique de détection d'effraction intégré dans une lame du volet roulant de la figure 1 ;
  • la figure 5 représente schématiquement une variante d'une partie du circuit de la figure 4 ;
  • la figure 6 représente une autre vue schématique en coupe du mode de réalisation de la figure 3 ; et
  • la figure 7 représente schématiquement un exemple de circuit électronique de la lame de la figure 1.
These characteristics and advantages, as well as others, will be explained in detail in the following description of particular embodiments made without implied limitation in relation to the attached figures among which:
  • the figure 1 schematically represents an embodiment of a rolling shutter and an alarm center;
  • the figure 2 illustrates, in the form of blocks, an embodiment of a process implemented by elements of the shutter of the figure 1 and the alarm center of the figure 1 .
  • the figure 3 shows a schematic sectional view of an embodiment of a blade of the rolling shutter of the figure 1 ;
  • the figure 4 schematically represents an example of electronic intrusion detection circuit integrated into a blade of the rolling shutter of the figure 1 ;
  • the figure 5 schematically represents a variant of part of the circuit of the figure 4 ;
  • the figure 6 shows another schematic sectional view of the embodiment of the figure 3 ; and
  • the figure 7 schematically represents an example of an electronic circuit of the blade of the figure 1 .

Description des modes de réalisationDescription of the embodiments

De mêmes éléments ont été désignés par de mêmes références dans les différentes figures. En particulier, les éléments structurels et/ou fonctionnels communs aux différents modes de réalisation peuvent présenter les mêmes références et peuvent disposer de propriétés structurelles, dimensionnelles et matérielles identiques.The same elements have been designated by the same references in the various figures. In particular, structural and / or functional elements common to the various embodiments may have the same references and may have identical structural, dimensional and material properties.

Par souci de clarté, seuls les étapes et éléments utiles à la compréhension des modes de réalisation décrits ont été représentés et sont détaillés.For the sake of clarity, only the steps and elements useful for understanding the described embodiments have been shown and are detailed.

Sauf précision contraire, lorsque l'on fait référence à deux éléments connectés entre eux, cela signifie directement connectés sans éléments intermédiaires autres que des conducteurs, et lorsque l'on fait référence à deux éléments reliés ou couplés entre eux, cela signifie que ces deux éléments peuvent être connectés ou être reliés ou couplés par l'intermédiaire d'un ou plusieurs autres éléments.Unless otherwise specified, when reference is made to two elements connected together, this means directly connected without intermediate elements other than conductors, and when reference is made to two elements connected or coupled together, it means that these two elements can be connected or be linked or coupled via one or more other elements.

Dans la description qui suit, lorsque l'on fait référence à des qualificatifs de position absolue, tels que les termes "avant", "arrière", "haut", "bas", "gauche", "droite", etc., ou relative, tels que les termes "dessus", "dessous", "supérieur", "inférieur", etc., ou à des qualificatifs d'orientation, tels que les termes "horizontal", "vertical", etc., il est fait référence sauf précision contraire à l'orientation des figures.In the following description, when reference is made to qualifiers for absolute position, such as "front", "back", "up", "down", "left", "right", etc., or relative, such as "above", "below", "upper", "lower", etc., or to qualifiers of orientation, such as "horizontal", "vertical", etc., it reference is made unless otherwise specified in the orientation of the figures.

Sauf précision contraire, les expressions "environ", "approximativement", "sensiblement", et "de l'ordre de" signifient à 10 % près, de préférence à 5 % près, ou, s'agissant d'une orientation, à 10 degrés près, de préférence à 5 degrés près.Unless otherwise specified, the terms "approximately", "approximately", "substantially", and "on the order of" mean to the nearest 10%, preferably to the nearest 5%, or, in the case of an orientation, to 10 degrees close, preferably to 5 degrees.

La figure 1 représente schématiquement un mode de réalisation d'un volet roulant 100 et d'une centrale d'alarme 102.The figure 1 schematically represents an embodiment of a roller shutter 100 and an alarm center 102.

Le volet roulant 100 est représenté en position fermée dans une ouverture 104. Le volet 100 comprend un tablier formé de lames 106 juxtaposées ayant de préférence des formes rectangulaires. Le volet 100 comprend notamment une lame terminale 106A ayant un grand côté qui, en position fermée, est en contact avec une paroi 105 de l'ouverture 104, de préférence la paroi inférieure ou seuil de l'ouverture. Les lames 106 ont leurs grands côtés, de préférence orientés horizontalement, qui s'articulent d'une lame à l'autre pour permettre au volet 100 de passer de la position fermée à une position ouverte. Dans la position ouverte, le volet est enroulé en partie supérieure et/ou au-dessus de l'ouverture 104. Les lames 106 ont leurs extrémités situées dans des coulisses 108, de préférence verticales, situées de part et d'autre de l'ouverture 104. Les coulisses 108 maintiennent et guident les lames 106.The roller shutter 100 is shown in the closed position in an opening 104. The shutter 100 comprises an apron formed of juxtaposed blades 106 preferably having rectangular shapes. The shutter 100 notably comprises an end strip 106A having a long side which, in the closed position, is in contact with a wall 105 of the opening 104, preferably the bottom wall or threshold of the opening. The blades 106 have their long sides, preferably oriented horizontally, which are articulated from one blade to another to allow the flap 100 to pass from the closed position to an open position. In the open position, the flap is rolled up and / or above the opening 104. The blades 106 have their ends located in slides 108, preferably vertical, located on either side of the opening 104. The slides 108 hold and guide the blades 106.

Dans le présent mode de réalisation, la lame terminale 106A comprend un ou plusieurs capteurs de déformation 110. De préférence, la lame 106A comprend quatre capteurs de déformation 110. Les capteurs sont de préférence reliés à un circuit électronique 120 communiquant avec la centrale d'alarme 102 (signal WS). En variante, la lame 106A peut comprendre moins de quatre capteurs 110, ou plus de quatre capteurs 110. En variante, les capteurs 110 sont portés par une autre lame que la lame terminale. Ainsi, les modes de réalisation décrits sont applicables à toute lame de volet roulant.In the present embodiment, the terminal blade 106A comprises one or more deformation sensors 110. Preferably, the blade 106A comprises four deformation sensors 110. The sensors are preferably connected to an electronic circuit 120 communicating with the central alarm 102 (WS signal). As a variant, the blade 106A can comprise less than four sensors 110, or more than four sensors 110. As a variant, the sensors 110 are carried by a blade other than the terminal blade. Thus, the embodiments described are applicable to any shutter blade.

La figure 2 illustre, sous forme de blocs, un mode de réalisation d'un procédé mis en oeuvre par les capteurs 110, le circuit 120 et la centrale d'alarme 102 de la figure 1. Les différentes étapes sont illustrées dans des blocs en pointillés indiquant les éléments par lesquels elles sont mises en oeuvre.The figure 2 illustrates, in the form of blocks, an embodiment of a method implemented by the sensors 110, the circuit 120 and the alarm center 102 of the figure 1 . The different stages are illustrated in dotted blocks indicating the elements by which they are implemented.

Les capteurs 110 et le circuit 120 détectent une éventuelle déformation de la lame. Pour cela, à une étape 130 (SENSE), les capteurs 110 fournissent au moins une valeur représentative de la déformation. A une étape 140 (COMPARE TO TH), le circuit 120 compare cette valeur à un seuil de détection TH. Une déformation est détectée si cette valeur est supérieure au seuil de détection TH. Plusieurs valeurs fournies par les capteurs peuvent être comparées à des seuils de détection respectifs ou à un seuil de détection commun.The sensors 110 and the circuit 120 detect a possible deformation of the blade. For this, at a step 130 (SENSE), the sensors 110 provide at least one value representative of the deformation. In a step 140 (COMPARE TO TH), the circuit 120 compares this value with a detection threshold TH. A deformation is detected if this value is greater than the detection threshold TH. Several values supplied by the sensors can be compared to respective detection thresholds or to a common detection threshold.

Le circuit 120 transmet le résultat de la comparaison 140 à la centrale d'alarme 102. De préférence, la transmission comprend une étape 150 (SEND WS) d'émission par le circuit 120 du signal sans fil WS. Le signal WS véhicule le résultat de la comparaison 140. A une étape 160 (RECEIVE WS), la centrale d'alarme 102 reçoit le signal sans fil WS. A une étape 170 (TRIGGER), la centrale d'alarme génère un signal d'alarme A si une déformation a été détectée.The circuit 120 transmits the result of the comparison 140 to the alarm center 102. Preferably, the transmission comprises a step 150 (SEND WS) of transmission by the circuit 120 of the wireless signal WS. The signal WS conveys the result of the comparison 140. In a step 160 (RECEIVE WS), the alarm center 102 receives the wireless signal WS. In a step 170 (TRIGGER), the alarm center generates an alarm signal A if a deformation has been detected.

Une personne cherchant à passer par l'ouverture fermée par le volet roulant 100 tente généralement de déformer la lame terminale afin de sortir ses extrémités des coulisses 108 et de la retirer. A cette fin, typiquement, un outil permettant de faire levier, tel qu'un pied de biche, est introduit entre la lame terminale et la paroi inférieure de l'ouverture. Une fois la lame terminale retirée, les autres lames peuvent être retirées l'une après l'autre à partir du bas du volet, au besoin en les déformant aussi.A person seeking to pass through the opening closed by the roller shutter 100 generally attempts to deform the terminal blade in order to take its ends from the slides 108 and remove it. To this end, typically, a tool for levering, such as a crowbar, is introduced between the terminal blade and the bottom wall of the opening. Once the terminal blade has been removed, the other blades can be removed one after the other from the bottom of the flap, if necessary also deforming them.

Ainsi, la détection d'une déformation d'au moins une lame du volet roulant, de préférence la lame terminale, permet de détecter une effraction. La déformation détectée correspond de préférence à une courbure de la lame ou à plusieurs courbures de parties de la lame. La ou les courbures détectées ont de préférence leurs côtés convexes tournés vers le haut et/ou l'intérieur du volet. L'intérieur du volet correspond, lorsque le volet ferme l'ouverture, au côté inaccessible à une personne cherchant à passer par l'ouverture par effraction.Thus, the detection of a deformation of at least one blade of the roller shutter, preferably the terminal blade, makes it possible to detect a break-in. The deformation detected preferably corresponds to a curvature of the blade or to several curvatures of parts of the blade. The detected curvature (s) preferably have their convex sides facing upwards and / or inside the flap. The inside of the flap corresponds, when the flap closes the opening, to the side inaccessible to a person seeking to enter through the break-in.

Du fait que l'alarme est générée en fonction d'une déformation de la lame, on évite le risque que l'alarme soit générée par des vibrations lors d'un mouvement normal du volet, par exemple lors de l'ouverture/fermeture ou en raison du vent. On évite aussi le risque que l'alarme soit générée lors d'un simple choc sur le volet, par exemple en fin de fermeture ou d'ouverture. Il y a ainsi moins de risque de générer une alarme en l'absence d'effraction (fausse détection) que pour un volet qui serait équipé par exemple d'un accéléromètre pour détecter une effraction.Because the alarm is generated as a function of a deformation of the blade, the risk is avoided that the alarm is generated by vibrations during normal movement of the shutter, for example during opening / closing or because of the wind. It also avoids the risk that the alarm is generated during a simple impact on the flap, for example at the end of closing or opening. There is thus less risk of generating an alarm in the absence of a break-in (false detection) than for a shutter which would be equipped for example with an accelerometer to detect a break-in.

De préférence, le seuil de détection TH est inférieur à la plus petite déformation, par exemple le plus grand rayon de courbure de la lame, permettant de sortir la lame des coulisses 108. Le seuil de détection peut être en-deçà ou au-delà de la limite d'élasticité de la lame. A titre d'exemple, la lame est en polychlorure de vinyle (PVC) ou en aluminium.Preferably, the detection threshold TH is less than the smallest deformation, for example the greatest radius of curvature of the blade, making it possible to remove the blade from the slides 108. The detection threshold can be below or beyond of the elastic limit of the blade. For example, the blade is made of polyvinyl chloride (PVC) or aluminum.

De préférence, les capteurs 110 sont répartis le long de la lame, par exemple régulièrement. Ceci permet de détecter des effractions par déformation d'une partie seulement de la lame.Preferably, the sensors 110 are distributed along the blade, for example regularly. This makes it possible to detect break-ins by deformation of only part of the blade.

De préférence, le circuit 120 comprend une antenne. Le circuit 120 comprend en outre, de préférence, une unité de traitement de données telle qu'un microprocesseur, et une mémoire contenant un programme dont l'exécution par le microprocesseur provoque, à l'aide d'un composant émetteur radio situé entre le microprocesseur et l'antenne, l'émission du signal WS par l'antenne. Par exemple, le signal sans fil WS véhicule un premier niveau logique lorsqu'aucune valeur fournie par un capteur n'est supérieure au seuil de détection TH, et un deuxième niveau logique si au moins une valeur fournie par l'un des capteurs 110 est supérieure au seuil de détection TH associé à cette valeur.Preferably, the circuit 120 comprises an antenna. The circuit 120 furthermore preferably comprises a data processing unit such as a microprocessor, and a memory containing a program whose execution by the microprocessor causes, using a radio transmitter component located between the microprocessor and antenna, transmission of the WS signal by the antenna. For example, the wireless signal WS carries a first logic level when no value supplied by a sensor is greater than the detection threshold TH, and a second logic level if at least one value provided by one of the sensors 110 is greater than the detection threshold TH associated with this value.

De préférence, la centrale d'alarme 102 comprend une antenne. La centrale d'alarme 102 comprend en outre, de préférence, une unité de traitement de données telle qu'un microprocesseur, et une mémoire contenant un programme dont l'exécution par le microprocesseur provoque la génération du signal d'alarme A en fonction du résultat de la comparaison 140. Le signal d'alarme est généré par exemple en fonction du niveau logique véhiculé par le signal sans fil WS. La centrale d'alarme comprend également, de préférence, un émetteur radio.Preferably, the alarm center 102 comprises an antenna. The alarm center 102 further preferably comprises a data processing unit such as a microprocessor, and a memory containing a program whose execution by the microprocessor causes the generation of the alarm signal A as a function of the result of comparison 140. The alarm signal is generated for example as a function of the logic level conveyed by the wireless signal WS. The alarm center also preferably includes a radio transmitter.

En variante, le circuit 120 transmet la ou les valeurs fournies par les capteurs à la centrale d'alarme 102 sans effectuer la comparaison 140, et la comparaison 140 est réalisée par la centrale d'alarme 102. Le signal sans fil WS émis par le circuit 120 véhicule alors la ou les valeurs fournies par le ou les capteurs 110. Le signal sans fil WS peut être tout signal véhiculant suffisamment d'informations pour que la centrale d'alarme puisse effectuer la comparaison 140.As a variant, the circuit 120 transmits the value or values supplied by the sensors to the alarm center 102 without carrying out the comparison 140, and the comparison 140 is carried out by the alarm center 102. The wireless signal WS emitted by the circuit 120 then conveys the value or values provided by the sensor (s) 110. The wireless signal WS can be any signal carrying enough information for the alarm center to be able to carry out the comparison 140.

La figure 3 représente une vue schématique en coupe d'un mode de réalisation de la lame 106A du volet roulant de la figure 1. Le plan de coupe passe par le ou l'un des capteurs 110.The figure 3 shows a schematic sectional view of an embodiment of the blade 106A of the roller shutter of the figure 1 . The cutting plane passes through the or one of the sensors 110.

La lame terminale 106A est représentée seule (sans le reste du volet ou l'ouverture). La lame 106A peut être mise en place dans le tablier du volet roulant au cours de la fabrication du volet ou en remplacement d'une lame terminale du volet après sa fabrication.The terminal blade 106A is shown alone (without the rest of the flap or the opening). The blade 106A can be placed in the roller shutter deck during the manufacture of the shutter or as a replacement for an end blade of the shutter after its manufacture.

De préférence, la lame 106A comprend un profilé 200 sur lequel est situé le ou les capteurs 110. Le profilé 200 comprend un corps 202 de section globalement allongée verticalement. Bien qu'un corps particulier de section rectangulaire soit représenté, la forme du corps 202 est compatible avec les formes usuelles des corps de lames de volet roulant. Le corps 202 comprend des faces opposées 206I et 206E tournées vers les côtés respectivement intérieur et extérieur du volet. Le corps 202 comprend une partie inférieure 206L destinée à être du côté de, par exemple en contact avec, une paroi d'une ouverture lorsque le volet roulant est fermé. A titre d'exemple, le corps 202 est creux et comprend des parois 208I, 208E, 208L, 208H entourant un espace intérieur 210. Les parois 208I, 208E, 208L correspondent aux faces respectivement 206I, 206E et 206L, et la paroi 208H est une paroi supérieure du corps.Preferably, the blade 106A comprises a profile 200 on which the sensor (s) 110 is located. The profile 200 comprises a body 202 of generally elongated section vertically. Although a particular body of rectangular section is shown, the shape of the body 202 is compatible with the usual shapes of the shutter blade bodies. The body 202 includes opposite faces 206I and 206E facing the interior and exterior sides of the flap, respectively. The body 202 comprises a lower part 206L intended to be on the side of, for example in contact with, a wall of an opening when the shutter is closed. By way of example, the body 202 is hollow and includes walls 208I, 208E, 208L, 208H surrounding an interior space 210. The walls 208I, 208E, 208L correspond to the faces respectively 206I, 206E and 206L, and the wall 208H is an upper wall of the body.

Le profilé 200 comprend, dans sa partie supérieure, une structure 220 destinée à l'accrochage et l'articulation de la lame 106A avec une autre lame située au-dessus d'elle. Bien qu'une forme particulière de crochet s'étendant à partir de la face supérieure du corps vers le haut, puis vers la gauche, puis vers le bas, soit représentée, la forme de la structure 220 est compatible avec les formes usuelles de structures d'accrochage et d'articulation de lames de volet roulant entre elles. Dans le cas, non représenté, où la lame portant les capteurs n'est pas la lame terminale, la lame comprend en outre, dans sa partie inférieure, une structure destinée à l'accrochage et l'articulation avec une autre lame située au-dessous.The profile 200 comprises, in its upper part, a structure 220 intended for the attachment and articulation of the blade 106A with another blade located above it. Although a particular form of hook extending from the upper face of the body upwards, then to the left, then downwards is shown, the shape of the structure 220 is compatible with the usual forms of structures for hooking and hinging shutter blades together. In the case, not shown, where the blade carrying the sensors is not the terminal blade, the blade further comprises, in its lower part, a structure intended for attachment and articulation with another blade located above below.

Dans l'exemple représenté, un capteur 110 est situé sur la face 206I tournée vers le côté intérieur du volet, de préférence collé (colle 230).In the example shown, a sensor 110 is located on the face 206I facing the inside of the flap, preferably glued (glue 230).

De préférence, le capteur 110 comprend un substrat 240 ayant une forme de plaque. La colle 230 relie alors mécaniquement le substrat 240 à la face ou à la paroi dont la déformation est captée par la jauge, ici la face 206I ou la paroi 208I. A titre d'exemple, le substrat 240 est en un isolant électrique tel qu'un mélange de résine époxy et de fibre de verre.Preferably, the sensor 110 comprises a substrate 240 having a plate shape. The glue 230 then mechanically connects the substrate 240 to the face or to the wall whose deformation is captured by the gauge, here the face 206I or the wall 208I. For example, the substrate 240 is made of an electrical insulator such as a mixture of epoxy resin and glass fiber.

Dans un autre exemple que celui représenté, le capteur 110 est situé à l'intérieur de la lame 106A, par exemple dans l'espace 210 d'une lame creuse. De préférence, le capteur 110 est alors situé, par exemple collé, contre la face de la paroi 208I ou 208E tournée du côté de l'espace intérieur 210 de la lame. Dans un autre exemple, le capteur 110 est situé à l'intérieur d'une lame pleine, par exemple fixé dans un logement prévu dans la lame ou inclus dans le matériau de la lame.In another example than that shown, the sensor 110 is located inside the blade 106A, for example in the space 210 of a hollow blade. Preferably, the sensor 110 is then located, for example glued, against the face of the wall 208I or 208E facing the side of the interior space 210 of the blade. In another example, the sensor 110 is located inside a solid blade, for example fixed in a housing provided in the blade or included in the material of the blade.

Selon un avantage, du fait que le ou les capteurs 110 sont situés à l'intérieur du volet ou contre la paroi 206I, ils ne sont pas accessibles depuis l'extérieur du volet. On évite ainsi un risque qu'une personne tente de neutraliser le dispositif de détection d'effraction.According to an advantage, because the sensor (s) 110 are located inside the flap or against the wall 206I, they are not accessible from outside the flap. This avoids the risk of a person trying to neutralize the intrusion detection device.

La figure 4 représente schématiquement un mode de réalisation de circuit électronique 120 de la lame de la figure 1, relié à des capteurs 110. Plus précisément, le circuit est associé à une lame telle que celle de la figure 3 comprenant quatre capteurs 110 comprenant chacun un substrat 240.The figure 4 schematically represents an embodiment of electronic circuit 120 of the blade of the figure 1 , connected to sensors 110. More specifically, the circuit is associated with a blade such as that of the figure 3 comprising four sensors 110 each comprising a substrate 240.

De préférence, chaque capteur 110 comprend une jauge de contrainte respective 305A, 305B, 305C, 305D, c'est-à-dire un élément ayant une caractéristique électrique, telle qu'une résistance ou une tension, variant en fonction d'une contrainte S appliquée à cet élément. Cet élément est de préférence une piézorésistance. La piézorésistance est de préférence constituée par un fil piézorésistif (non représenté) situé sur une des faces du substrat 240 du capteur considéré. De préférence, la jauge capte une composante de la déformation de la lame selon une direction. Le fil piézorésistif comprend par exemple des portions parallèles à la composante captée. Le fil piézorésistif est typiquement en un alliage à base de nickel et/ou de cuivre et/ou de fer. Dans un autre exemple, le substrat 240 est en un semiconducteur dopé, par exemple en silicium, et la piézorésistance est définie dans une portion du substrat. A titre d'exemple, la jauge a une résistance nominale de 1 kohm et une sensibilité de 2mV/V.Preferably, each sensor 110 comprises a respective strain gauge 305A, 305B, 305C, 305D, that is to say an element having an electrical characteristic, such as a resistance or a voltage, varying as a function of a strain S applied to this element. This element is preferably a piezoresistor. The piezoresistor is preferably constituted by a piezoresistive wire (not shown) located on one of the faces of the substrate 240 of the sensor considered. Preferably, the gauge captures a component of the deformation of the blade in a direction. Thread piezoresistive comprises for example portions parallel to the sensed component. The piezoresistive wire is typically made of an alloy based on nickel and / or copper and / or iron. In another example, the substrate 240 is made of a doped semiconductor, for example made of silicon, and the piezoresistor is defined in a portion of the substrate. For example, the gauge has a nominal resistance of 1 kohm and a sensitivity of 2mV / V.

De préférence, les jauges sont situées dans les branches d'un pont de Wheatstone 310. Le pont 310 comprend deux branches parallèles 310A et 310B reliant deux noeuds 312H et 312L. La branche 310A comprend les jauges 305B et 305C reliées en série entre les noeuds respectifs 312L et 312H, et un noeud 312A situé entre les jauges 305B et 305C. La branche 310B comprend les jauges 305A et 305D reliées en série entre les noeuds respectifs 312L et 312H, et un noeud 312B situé entre les jauges 305A et 305D.Preferably, the gauges are located in the branches of a Wheatstone bridge 310. The bridge 310 comprises two parallel branches 310A and 310B connecting two nodes 312H and 312L. The branch 310A comprises the gauges 305B and 305C connected in series between the respective nodes 312L and 312H, and a node 312A located between the gauges 305B and 305C. The branch 310B comprises the gauges 305A and 305D connected in series between the respective nodes 312L and 312H, and a node 312B located between the gauges 305A and 305D.

Le circuit 120 comprend de préférence un circuit imprimé 302 de type PCB ("Printed Circuit Board"). Dans l'exemple particulier de la figure 4, les noeuds 312A, 312B, 312H et 312L du pont 310 sont situés sur le circuit imprimé 302. Chaque capteur 110 est alors connecté par deux fils électriquement conducteurs 314 au circuit imprimé 302. Les fils 314 relient chaque jauge 305A à 305D à deux des noeuds 312A, 312B, 312H, et 312L.The circuit 120 preferably comprises a printed circuit 302 of the PCB (“Printed Circuit Board”) type. In the particular example of the figure 4 , the nodes 312A, 312B, 312H and 312L of the bridge 310 are located on the printed circuit 302. Each sensor 110 is then connected by two electrically conductive wires 314 to the printed circuit 302. The wires 314 connect each gauge 305A to 305D to two of the nodes 312A, 312B, 312H, and 312L.

De préférence, le circuit 120 comprend un circuit de commande (CTRL) 320. Le circuit 120 comprend de préférence en outre un circuit d'alimentation 330, un amplificateur 340 et un circuit d'émission radiofréquences 345 (RF) connectés au circuit de commande 320. Une antenne 350 est connectée au circuit 345. De préférence, les circuits 320, 330, 345, l'amplificateur 340 et éventuellement l'antenne 350 sont mécaniquement solidaires du circuit imprimé 302.Preferably, the circuit 120 comprises a control circuit (CTRL) 320. The circuit 120 preferably further comprises a supply circuit 330, an amplifier 340 and a radio frequency transmission circuit 345 (RF) connected to the control circuit 320. An antenna 350 is connected to the circuit 345. Preferably, the circuits 320, 330, 345, the amplifier 340 and possibly the antenna 350 are mechanically integral with the printed circuit 302.

De préférence, le circuit d'alimentation 330 comprend une source d'énergie autonome 332, par exemple une cellule photoélectrique, et/ou un générateur électrochimique tel qu'une batterie ou une pile, et/ou un stockage de charges tel qu'une capacité ou une supercapacité. De ce fait, la lame est plus facile à mettre en place dans un volet qu'une lame de volet comprenant un circuit alimenté par une source extérieure à la lame du volet.Preferably, the supply circuit 330 comprises an autonomous energy source 332, for example a photoelectric cell, and / or an electrochemical generator such as a battery or a battery, and / or a storage of charges such as a capacity or supercapacity. Therefore, the blade is easier to put in place in a shutter than a shutter blade comprising a circuit supplied by a source external to the blade of the shutter.

Le circuit de commande 320 a deux noeuds VH et VL d'application d'une tension d'alimentation du pont de Wheatstone. Les noeuds VH et VL sont connectés aux noeuds respectifs 312H et 312L.The control circuit 320 has two nodes VH and VL for applying a supply voltage to the Wheatstone bridge. The nodes VH and VL are connected to the respective nodes 312H and 312L.

L'amplificateur 340 est par exemple du type amplificateur opérationnel d'instrumentation et comprend une entrée inverseuse (-) et une entrée non inverseuse (+). Les entrées inverseuse et non inverseuse sont reliées aux noeuds respectifs 312A et 312B. Le circuit 320 reçoit la sortie de l'amplificateur 340.The amplifier 340 is for example of the operational instrumentation amplifier type and comprises an inverting input (-) and a non-inverting input (+). The inverting and non-inverting inputs are connected to the respective nodes 312A and 312B. The circuit 320 receives the output of the amplifier 340.

En fonctionnement, lorsque la tension d'alimentation du pont de Wheatstone est appliquée par le circuit 320, l'amplificateur 340 fournit sur sa sortie une valeur représentative de la déformation de la lame.In operation, when the supply voltage of the Wheatstone bridge is applied by the circuit 320, the amplifier 340 provides at its output a value representative of the deformation of the blade.

La tension d'alimentation est de préférence une tension continue, par exemple comprise entre 2,5 V et 10 V. De préférence, la tension d'alimentation du pont de Wheatstone est appliquée temporairement de manière répétée, par exemple à intervalles réguliers. La durée d'application est par exemple inférieure à 0,1 s. La déformation de la lame n'est pas captée entretemps, ce qui permet de limiter la consommation électrique par rapport à une alimentation appliquée de manière permanente. De préférence, la durée entre deux applications temporaires consécutives de la tension d'alimentation est inférieure à environ 1 minute, de préférence inférieure à 30 secondes. Cette durée est alors inférieure au temps nécessaire pour retirer la lame de volet en la déformant. Cela améliore la protection en évitant le risque d'effraction non détectée.The supply voltage is preferably a direct voltage, for example between 2.5 V and 10 V. Preferably, the supply voltage of the Wheatstone bridge is temporarily applied repeatedly, for example at regular intervals. The duration of application is for example less than 0.1 s. The deformation of the blade is not captured in the meantime, which makes it possible to limit the electrical consumption compared to a permanently applied power supply. Preferably, the duration between two consecutive temporary applications of the supply voltage is less than about 1 minute, from preferably less than 30 seconds. This duration is then less than the time necessary to remove the shutter blade by deforming it. This improves protection by avoiding the risk of undetected break-ins.

De préférence, les jauges 305A à 305D, et éventuellement les longueurs des fils 314, sont choisies de sorte que, en l'absence de déformation de la lame, le pont de Wheatstone soit équilibré, c'est-à-dire que la tension entre les noeuds 312H et 312L est inférieure à un millième, de préférence inférieure à un dix millième de la tension d'alimentation du pont de Wheatstone. Ceci peut être réalisé par exemple en ajoutant, dans au moins l'une des branches du pont, une résistance réglable, telle qu'un potentiomètre, en parallèle de la jauge. Le potentiomètre est de préférence à 10 ou 20 tours. Ceci permet d'ajuster l'équilibre du pont de Wheatstone.Preferably, the gauges 305A to 305D, and possibly the lengths of the wires 314, are chosen so that, in the absence of deformation of the blade, the Wheatstone bridge is balanced, that is to say that the tension between the nodes 312H and 312L is less than one thousandth, preferably less than one ten thousandth of the supply voltage of the Wheatstone bridge. This can be done for example by adding, in at least one of the branches of the bridge, an adjustable resistance, such as a potentiometer, in parallel with the gauge. The potentiometer is preferably at 10 or 20 turns. This allows the balance of the Wheatstone bridge to be adjusted.

A titre d'exemple, les jauges 305A et 305C captent une composante longitudinale, c'est-à-dire parallèle aux grands côtés de la lame, et les jauges 305B et 305D captent une composante transversale. Dans un autre exemple, les jauges 305A et 305C sont situées sur la face 206I (figure 3, face côté intérieur du volet) et les jauges 305A et 305C sont situées à l'intérieur de la lame. Dans ces exemples, en cas de déformation de la lame, les jauges 305A et 305C captent de préférence un sens compression/extension de déformation opposé à celui mesuré par les jauges 305B et 305D. On peut prévoir d'autres positionnements des jauges de sorte que, en cas d'effraction, les jauges 305A et 305C captent une compression et les jauges 305B et 305D captent une extension. La déformation de la lame provoque une variation de la résistance des jauges 305A et 305C différente de celle des jauges 305B et 305D, de préférence opposée. La déformation déséquilibre plus le pont de Wheatstone, et ainsi est détectée de manière plus fiable que si les jauges mesurent des composantes similaires de la déformation de la lame.For example, the gauges 305A and 305C pick up a longitudinal component, that is to say parallel to the long sides of the blade, and the gauges 305B and 305D pick up a transverse component. In another example, the gauges 305A and 305C are located on the face 206I ( figure 3 , face inside of the shutter) and the gauges 305A and 305C are located inside the blade. In these examples, in the event of deformation of the blade, the gauges 305A and 305C preferably capture a compression / extension direction of deformation opposite to that measured by the gauges 305B and 305D. Other positions of the gauges can be provided so that, in the event of a break-in, the gauges 305A and 305C capture a compression and the gauges 305B and 305D capture an extension. The deformation of the blade causes a variation in the resistance of the gauges 305A and 305C different from that of the gauges 305B and 305D, preferably opposite. The deformation unbalances more the Wheatstone bridge, and so is detected more reliably than if the gauges measure similar components of blade deformation.

La figure 5 représente schématiquement une partie d'une variante du circuit de la figure 4, plus précisément une variante du pont de Wheatstone 310 de la figure 4.The figure 5 schematically represents part of a variant of the circuit of the figure 4 , more precisely a variant of the Wheatstone 310 bridge of the figure 4 .

Cette variante diffère du pont 310 de la figure 4 en ce que les noeuds 312H, 312A et 312B sont situés à l'extérieur du circuit imprimé 302, par exemple sur des liaisons 410 connectant les capteurs 110 en série, les bornes 412 aux extrémités de l'association série remplaçant le noeud 312L. Les bornes 412 sont reliées au noeud VL. Les liaisons 410 sont par exemple des fils conducteurs, de préférence disposés parallèlement, ou sensiblement parallèlement, aux grands côtés de la lame. En variante, on peut échanger les noeuds VL et VH. Dans une autre variante, le noeud VL est défini par une masse, par exemple la lame de volet dans le cas où la lame est en un matériau conducteur tel que l'aluminium.This variant differs from bridge 310 of the figure 4 in that the nodes 312H, 312A and 312B are located outside of the printed circuit 302, for example on links 410 connecting the sensors 110 in series, the terminals 412 at the ends of the series association replacing the node 312L. The terminals 412 are connected to the node VL. The connections 410 are for example conductive wires, preferably arranged parallel, or substantially parallel, to the long sides of the blade. As a variant, the nodes VL and VH can be exchanged. In another variant, the node VL is defined by a mass, for example the shutter blade in the case where the blade is made of a conductive material such as aluminum.

Bien que l'on ait décrit un circuit et une variante particuliers en relation avec les figures 3 et 4, d'autres modes de réalisation du circuit sont possibles. Dans un mode de réalisation, un ou plusieurs des capteurs 110 de la figure 4 sont remplacés par une ou des résistances, pour le cas d'une lame comprenant moins de quatre jauges de contrainte. Les résistances sont alors de préférence situées dans le circuit 120. Dans un mode de réalisation, le circuit 120 comprend plusieurs ponts de Wheatstone, pour le cas d'une lame comportant plus de quatre jauges de contrainte. Dans un mode de réalisation, au moins un des capteurs comprend plusieurs jauges sur un même substrat, par exemple deux jauges captant des composantes différentes de la déformation, ou par exemple quatre jauges montées en pont de Wheatstone.Although a particular circuit and variant has been described in relation to the figures 3 and 4 , other embodiments of the circuit are possible. In one embodiment, one or more of the sensors 110 of the figure 4 are replaced by one or more resistors, in the case of a blade comprising less than four strain gauges. The resistors are then preferably located in the circuit 120. In one embodiment, the circuit 120 comprises several Wheatstone bridges, for the case of a blade comprising more than four strain gauges. In one embodiment, at least one of the sensors comprises several gauges on the same substrate, for example two gauges capturing different components of the deformation, or for example four gauges mounted in Wheatstone bridge.

La figure 6 représente une autre vue schématique en coupe de la lame 106A de la figure 3. Plus particulièrement, le plan de coupe de la figure 6 passe par l'antenne 350 du circuit 120.The figure 6 shows another schematic sectional view of the blade 106A of the figure 3 . More specifically, the cutting plane of the figure 6 goes through antenna 350 of circuit 120.

Le circuit 120 est situé dans l'espace 210 intérieur de la lame 106A, entre les parois 208I et 208E. A titre d'exemple, le circuit comprend des éléments, dont l'antenne 350, situés dans un boîtier 510. En variante, l'antenne est située à l'extérieur du boîtier, par exemple dans l'espace 210.The circuit 120 is located in the interior space 210 of the blade 106A, between the walls 208I and 208E. By way of example, the circuit comprises elements, including the antenna 350, located in a housing 510. As a variant, the antenna is situated outside the housing, for example in space 210.

L'antenne est située en vis-à-vis d'une ouverture 520 que comporte de préférence la paroi 208I. Cette ouverture permet, dans le cas d'une lame en un matériau conducteur tel que l'aluminium, d'émettre un signal vers la centrale d'alarme.The antenna is located opposite an opening 520 which preferably has the wall 208I. This opening allows, in the case of a blade made of a conductive material such as aluminum, to send a signal to the alarm center.

A titre de variante, la lame est conductrice et définit l'antenne 350. L'ouverture 520 peut alors être omise.Alternatively, the blade is conductive and defines the antenna 350. The opening 520 can then be omitted.

La figure 7 représente schématiquement un autre mode de réalisation du circuit électronique 120 de la lame de la figure 1. Plus précisément, le circuit 120 comprend dans ce mode de réalisation un circuit de commande 320 et un circuit d'alimentation 330 identiques ou similaires aux circuits 320 et 330 du mode de réalisation de la figure 4. Ces circuits 320 et 330 sont ici représentés de manière plus détaillée.The figure 7 schematically represents another embodiment of the electronic circuit 120 of the blade of the figure 1 . More specifically, the circuit 120 comprises in this embodiment a control circuit 320 and a supply circuit 330 identical or similar to the circuits 320 and 330 of the embodiment of the figure 4 . These circuits 320 and 330 are shown here in more detail.

Comme dans le mode de réalisation de la figure 4, le circuit 120 est relié à un ou plusieurs capteurs reliés en au moins un pont de Wheatstone 310. Le circuit de commande 320 est relié par le circuit RF 345 à une antenne 350. Le circuit 320 applique une tension d'alimentation au pont 310 et reçoit du pont 310 une valeur mesurée par les capteurs, de préférence par l'intermédiaire d'un amplificateur 340 (AMP).As in the embodiment of the figure 4 , the circuit 120 is connected to one or more sensors connected in at least one Wheatstone bridge 310. The control circuit 320 is connected by the RF circuit 345 to an antenna 350. The circuit 320 applies a supply voltage to the bridge 310 and receives from the bridge 310 a value measured by the sensors, preferably via an amplifier 340 (AMP).

Dans une variante non représentée, la lame 106A peut comprendre plusieurs circuits 120, par exemple chaque circuit 120 est associé à un capteur 110. La centrale d'alarme 102 est alors conçue pour recevoir plusieurs signaux sans fil provenant des circuits 120. Par exemple, chaque capteur 110 émet un signal véhiculant le résultat de la détection. De préférence, le signal d'alarme est alors généré par la centrale 102 si un seul des capteurs 110 a détecté une déformation. Dans une autre variante non représentée, la lame 106A ne comprend pas le circuit 120, et le circuit 120 est situé sur une autre lame 106 du volet. La communication entre le ou les capteurs et le circuit peut là encore être filaire ou sans fil.In a variant not shown, the blade 106A can comprise several circuits 120, for example each circuit 120 is associated with a sensor 110. The alarm center 102 is then designed to receive several wireless signals coming from circuits 120. For example, each sensor 110 emits a signal conveying the result of the detection. Preferably, the alarm signal is then generated by the central 102 if only one of the sensors 110 has detected a deformation. In another variant not shown, the blade 106A does not include the circuit 120, and the circuit 120 is located on another blade 106 of the shutter. Communication between the sensor (s) and the circuit can again be wired or wireless.

Le circuit 320 comprend de préférence un convertisseur analogique-numérique 620 (ADC) qui reçoit la valeur mesurée. Le convertisseur 620 fournit une valeur numérique en fonction de la valeur mesurée. Le circuit 320 comprend de préférence une unité de traitement séquentiel de données, telle qu'un microprocesseur 630 (CPU), qui reçoit la valeur numérique. Le microprocesseur 630 exécute de préférence un programme stocké dans une mémoire non représentée. Le circuit 320 comprend de préférence un bus 640, par exemple un bus série type SPI ("Serial Peripheral Interface"), connecté au microprocesseur. Le programme provoque l'envoi sur le bus, par le microprocesseur 630, d'informations à envoyer à la centrale d'alarme. Le microprocesseur 630 communique au circuit d'émission 345, via le bus SPI, des paramètres d'émission du signal sans fil, tels que le type de modulation, la fréquence centrale, le débit, ou la puissance d'émission. Le circuit 345 (RF) reçoit du bus 640 les informations à envoyer et provoque l'émission par l'antenne 350 d'un signal sans fil véhiculant ces informations.The circuit 320 preferably comprises an analog-digital converter 620 (ADC) which receives the measured value. The converter 620 supplies a numerical value as a function of the measured value. The circuit 320 preferably includes a sequential data processing unit, such as a microprocessor 630 (CPU), which receives the digital value. The microprocessor 630 preferably executes a program stored in a memory not shown. The circuit 320 preferably comprises a bus 640, for example a serial bus type SPI ("Serial Peripheral Interface"), connected to the microprocessor. The program causes the microprocessor 630 to send information to the bus to send to the alarm center. The microprocessor 630 communicates to the transmission circuit 345, via the SPI bus, parameters for transmission of the wireless signal, such as the type of modulation, the central frequency, the bit rate, or the transmission power. The circuit 345 (RF) receives from the bus 640 the information to be sent and causes the emission by the antenna 350 of a wireless signal conveying this information.

La communication sans fil entre le circuit 320 et la centrale d'alarme est, de préférence, sécurisée via un chiffrement ou tout moyen de sécurisation de l'information transmise. Les modes de réalisation décrits sont compatibles avec les communications sécurisées usuelles.The wireless communication between the circuit 320 and the alarm center is preferably secured by encryption or any means of securing the information transmitted. The embodiments described are compatible with usual secure communications.

Le circuit 330 comprend de préférence une unité de gestion d'énergie 660 (PMU "Power Management Unit") connectée à une cellule photoélectrique 670 et à un dispositif de stockage d'énergie électrique 680 tel qu'une batterie, de préférence au lithium, ou une supercapacité. De préférence, la cellule photovoltaïque est située sur la face 206E (figure 3) de la lame, tournée vers l'extérieur du volet. L'unité 660 fournit une tension d'alimentation au circuit 320 à partir du stockage 680 et/ou de la cellule photoélectrique 670, et recharge le stockage 680 lorsque la cellule photoélectrique 670 produit de l'énergie. A titre d'exemple particulier de réalisation, l'unité de gestion d'énergie peut être le module connu sous la dénomination commerciale "TI BQ25504". De préférence, l'unité 660 comprend un circuit d'extraction de l'énergie reçue par la cellule 670, de type à suivi du point maximal de puissance (MPPT, "Maximum Power Point Tracking").The circuit 330 preferably comprises an energy management unit 660 (PMU "Power Management Unit") connected to a photoelectric cell 670 and to an electrical energy storage device 680 such as a battery, preferably lithium, or a supercapacitor. Preferably, the photovoltaic cell is located on the face 206E ( figure 3 ) of the blade, facing the outside of the shutter. The unit 660 supplies a supply voltage to the circuit 320 from the storage 680 and / or the photoelectric cell 670, and recharges the storage 680 when the photoelectric cell 670 produces energy. As a particular embodiment, the energy management unit can be the module known under the trade name "TI BQ25504". Preferably, the unit 660 comprises a circuit for extracting the energy received by the cell 670, of the type with maximum power point tracking (MPPT).

De préférence, le signal d'alarme généré par la centrale 102 comprend un signal émis ou transmis par un réseau de communication tel qu'un réseau téléphonique, par exemple un réseau sans fil, ou le réseau Internet. Le signal d'alarme peut aussi comprendre un signal sonore. Les modes de réalisation décrits ici sont compatibles avec les types usuels de signaux d'alarme générés par une centrale d'alarme.Preferably, the alarm signal generated by the central unit 102 comprises a signal emitted or transmitted by a communication network such as a telephone network, for example a wireless network, or the Internet network. The alarm signal may also include an audible signal. The embodiments described here are compatible with the usual types of alarm signals generated by an alarm center.

La centrale d'alarme 102 peut prendre la forme de tout dispositif configuré pour générer un signal d'alarme lorsqu'une déformation d'une lame est détectée. Par exemple, le signal généré par le circuit 120 est envoyé, de préférence par transmission sans fil, à un réseau de communication tel qu'un réseau téléphonique ou le réseau Internet. La fonction de la centrale d'alarme est alors assurée par un dispositif tel qu'un téléphone mobile ou un ordinateur, communiquant, par exemple par une antenne ou par connexion filaire, avec le réseau de communication.The alarm center 102 can take the form of any device configured to generate an alarm signal when a deformation of a blade is detected. For example, the signal generated by the circuit 120 is sent, preferably by wireless transmission, to a communication network such as a telephone network or the Internet. The function of the alarm center is then provided by a device such as a mobile telephone or a computer, communicating, for example by an antenna or by wired connection, with the communication network.

Divers modes de réalisation et variantes ont été décrits. L'homme de l'art comprendra que certaines caractéristiques de ces divers modes de réalisation et variantes pourraient être combinées, et d'autres variantes apparaitront à l'homme de l'art. En particulier, le ou les capteurs de déformation peuvent être capacitifs ou magnétiques.Various embodiments and variants have been described. Those skilled in the art will understand that certain features of these various embodiments and variants could be combined, and other variants will appear to those skilled in the art. In particular, the deformation sensor (s) can be capacitive or magnetic.

Enfin, la mise en oeuvre pratique des modes de réalisation et variantes décrits est à la portée de l'homme du métier à partir des indications fonctionnelles données ci-dessus.Finally, the practical implementation of the embodiments and variants described is within the reach of those skilled in the art from the functional indications given above.

Claims (16)

Lame (106A) de volet roulant (100) comportant au moins un capteur (110) de déformation de la lame configuré pour fournir au moins une valeur représentative de la déformation de la lame.Roller shutter blade (106A) (100) comprising at least one blade deformation sensor (110) configured to provide at least one value representative of the blade deformation. Lame selon la revendication 1, dans laquelle le ou chaque capteur (110) comprend une jauge de contrainte (305A, 305B, 305C, 305D).The blade of claim 1, wherein the or each sensor (110) comprises a strain gauge (305A, 305B, 305C, 305D). Lame selon la revendication 2, dans laquelle la ou les jauges de contrainte (305A, 305B, 305C, 305D) sont situées dans des branches d'un pont de Wheatstone (310).The blade of claim 2, wherein the one or more strain gauges (305A, 305B, 305C, 305D) are located in branches of a Wheatstone bridge (310). Lame selon l'une quelconque des revendications 1 à 3, dans laquelle le ou au moins l'un des capteurs (110) est situé sur une face (206I) de la lame (106A) destinée à être tournée vers un côté intérieur du volet roulant (100).Blade according to any one of Claims 1 to 3, in which the or at least one of the sensors (110) is located on one face (206I) of the blade (106A) intended to be turned towards an interior side of the shutter rolling (100). Lame selon l'une quelconque des revendications 1 à 3, dans laquelle le capteur (110) ou au moins l'un des capteurs (110) est situé à l'intérieur (210) de la lame (106A).Blade according to any one of Claims 1 to 3, in which the sensor (110) or at least one of the sensors (110) is situated inside (210) of the blade (106A). Lame selon l'une quelconque des revendications 1 à 5, constituant une lame terminale (106A) de volet roulant.Blade according to any one of claims 1 to 5, constituting an end blade (106A) of a roller shutter. Lame selon l'une quelconque des revendications 1 à 6, comprenant un circuit (120) configuré pour émettre un signal sans fil (WS) basé sur au moins une valeur fournie par le ou au moins l'un des capteurs (110).A blade as claimed in any of claims 1 to 6, comprising a circuit (120) configured to transmit a wireless signal (WS) based on at least one value provided by the or at least one of the sensors (110). Lame selon la revendication 7, dans laquelle le circuit (120) est situé à l'intérieur de la lame (106A).The blade of claim 7, wherein the circuit (120) is located inside the blade (106A). Lame selon la revendication 7 ou 8, dans laquelle ledit circuit (120) comprend une antenne (350) située entre des première (208I) et deuxième (208E) parois de la lame (106A) et en vis-à-vis d'une ouverture (520) dans la première paroi.A blade according to claim 7 or 8, wherein said circuit (120) includes an antenna (350) located between first (208I) and second (208E) walls of the blade (106A) and opposite an opening (520) in the first wall. Lame selon l'une quelconque des revendications 7 à 9, dans laquelle ledit circuit (120) comprend une source autonome d'énergie (330).A blade according to any of claims 7 to 9, wherein said circuit (120) comprises an autonomous source of energy (330). Lame selon l'une quelconque des revendications 7 à 10, dans laquelle ledit signal sans fil (WS) véhicule ladite valeur ou un résultat d'une comparaison (140) de ladite valeur à un seuil (TH).A blade according to any of claims 7 to 10, wherein said wireless signal (WS) conveys said value or a result of a comparison (140) of said value at a threshold (TH). Volet roulant (100) comprenant au moins une lame (106A) selon l'une quelconque des revendications 1 à 11.Roller shutter (100) comprising at least one blade (106A) according to any one of claims 1 to 11. Centrale d'alarme (102) comprenant une antenne configurée pour recevoir, d'une lame (106A) selon l'une quelconque des revendications 7 à 12, ledit signal sans fil (SW).Central alarm (102) comprising an antenna configured to receive, from a blade (106A) according to any one of claims 7 to 12, said wireless signal (SW). Procédé comprenant une étape de détection (130, 140) d'une déformation d'une lame (106A) de volet roulant (100) et de fourniture d'au moins une valeur représentative de la déformation de la lame.A method comprising a step of detecting (130, 140) a deformation of a blade (106A) of a roller shutter (100) and providing at least one value representative of the deformation of the blade. Procédé comprenant une étape consistant à capter (130) une déformation d'une lame (106A) selon l'une quelconque des revendications 1 à 11.Method comprising a step consisting in capturing (130) a deformation of a blade (106A) according to any one of claims 1 to 11. Procédé selon la revendication 14 ou 15, comprenant la génération (170) d'un signal d'alarme (A).The method of claim 14 or 15, comprising generating (170) an alarm signal (A).
EP19213696.8A 2018-12-05 2019-12-04 System for detecting breaking in and transmitting for a roller shutter Active EP3663502B1 (en)

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FR1872367A FR3089541B1 (en) 2018-12-05 2018-12-05 Autonomous and communicating burglary detection system for a rolling shutter

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FR2819545A1 (en) * 2001-01-18 2002-07-19 Bubendorff Volet Roulant Roller shutter has obstacle detector in lower slat with switch to cut out drive motor
EP1245780A1 (en) * 2001-03-28 2002-10-02 Bubendorff Volet Roulant Société Anonyme Roller shutter with means for detecting a shock
EP1843004A1 (en) * 2006-04-05 2007-10-10 BUBENDORFF Société Anonyme End profile of the shutter of a protection device
DE102017102599A1 (en) * 2017-02-09 2018-08-09 Efaflex Tor- Und Sicherheitssysteme Gmbh & Co. Kg Gate with an intelligent door leaf, which has an electrically self-contained Torblatteinrichtung, and method for this

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425071C1 (en) * 1984-07-07 1986-01-30 OPTO - electronic GmbH, 7931 Unterstadion Collision safety device for a roller gate
FR2819545A1 (en) * 2001-01-18 2002-07-19 Bubendorff Volet Roulant Roller shutter has obstacle detector in lower slat with switch to cut out drive motor
EP1245780A1 (en) * 2001-03-28 2002-10-02 Bubendorff Volet Roulant Société Anonyme Roller shutter with means for detecting a shock
EP1843004A1 (en) * 2006-04-05 2007-10-10 BUBENDORFF Société Anonyme End profile of the shutter of a protection device
DE102017102599A1 (en) * 2017-02-09 2018-08-09 Efaflex Tor- Und Sicherheitssysteme Gmbh & Co. Kg Gate with an intelligent door leaf, which has an electrically self-contained Torblatteinrichtung, and method for this

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EP3663502B1 (en) 2022-11-02
FR3089541A1 (en) 2020-06-12
FR3089541B1 (en) 2022-05-13

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