Opening monitoring system

Abstract

A monitoring system for an opening. A monitoring system (1) comprising a fixed frame (2) and an opening (3) movable in rotation relative to the fixed frame about an axis of rotation (Z) between an open position and a closed position, characterized in that it comprises a detection device (11), the detection device comprising: - a converter (16) configured to convert mechanical energy into electrical energy, - an electronic module (17) comprising a transmission module (19) capable of emitting a signal, the electronic module being electrically connected to the converter and intended to be supplied with electrical energy by the converter, and - an actuator (18) intended to cooperate with the converter to convert the mechanical energy of closing or opening the opening into electrical energy. Figure for the abbreviation: Figure 1

Description

Title of the invention: System for monitoring an opening Technical field of the invention

[0001] The invention relates to a monitoring system comprising a fixed part such as a door frame and an opening part such as a door or window, movable in rotation relative to the fixed part. The invention also relates to a method of monitoring an opening part by means of such a monitoring system. Prior art

[0002] Buildings generally include a set of openings, including doors and windows. Doors may be, for example, access doors to the building, doors separating different rooms within the building, or doors intended to close off storage spaces, such as closet doors. It is generally useful to monitor the open or closed status of a building's openings.

[0003] To this end, it is known to equip openings with a monitoring system capable of detecting and transmitting to a control unit whether the opening is open or closed. The most common solution for powering such a monitoring system is to equip it with a rechargeable battery or a cell. However, this solution requires regular battery recharging or replacement, which is cumbersome. To avoid this maintenance, monitoring systems equipped with a photovoltaic cell are also known. Such monitoring systems are therefore powered by solar energy. However, such monitoring systems are complex and bulky and must be installed in locations where they are highly exposed to light. These monitoring systems are therefore particularly conspicuous.

[0004] Furthermore, the openings of a building are not generally equipped with such a monitoring system as standard, and there is a wide variety of openings in a building. Openings can be of various sizes and made of different materials, for example, wood, plastic, or aluminum. The monitoring systems known from the prior art are generally only compatible with a single type of opening, or even a single model of opening. Consequently, it is generally impossible to retrofit all the openings of a building with the same system. Presentation of the invention

[0005] The object of the invention is to provide a monitoring system that remedies the above disadvantages and improves on known prior art monitoring systems.

[0006] More specifically, a first object of the invention is a particularly discreet, easy-to-install surveillance system requiring little or no maintenance. Summary of the invention

[0007] The invention relates to a monitoring system comprising a fixed frame and a movable opening that rotates relative to the fixed frame about an axis of rotation between an open position and a closed position, the monitoring system comprising a detection device, the detection device comprising: - a converter configured to convert mechanical energy into electrical energy, - an electronic module comprising a transmission module capable of emitting a signal, the electronic module being electrically connected to the converter and intended to be powered by the converter, and - an actuator designed to cooperate with the converter to convert the mechanical energy of opening or closing the opening into electrical energy, the actuator being fixed to the opening and projecting from a first edge of the opening on the side of said axis of rotation, and the converter is integrated into a recess formed in the frame opposite the actuator, Or : the actuator being fixed to the frame and projecting from one face of the frame on the side of said axis of rotation, and the converter is integrated into a recess formed in the opening opposite the actuator.

[0008] The detection device may include a movable pusher in translation within the recess, the pusher comprising a first bearing surface intended to come into direct contact with the actuator and a second bearing surface intended to come into direct contact with the converter.

[0009] The converter can understand: - an electric coil and a magnet that is movable relative to the electric coil, or - an element made of piezoelectric material fixed to a beam intended to vibrate.

[0010] The actuator may include a protruding lug extending from the first edge of the opening or from said face of the sleeper, the lug comprising a distal end intended to cooperate with the converter, the actuator further comprising a means for adjusting a distance separating said distal end from said edge or from said face.

[0011] The actuator may include a protruding lug from the first edge of the opening or from said face of the dormant, the lug being movable parallel to the direction in which it extends between an active position where the lug is able to cooperate with the converter and a passive position where the lug is no longer able to cooperate with the converter.

[0012] The transmission module can be configured to emit a radio signal, for example according to the Bluetooth® or Zigbee® standard, and / or the transmission module can include a radio identification device.

[0013] The electronic module may include: - an electronic card - an energy storage element intended to be charged by the converter, - a rectifier configured to convert an alternating current supplied by the converter into a rectified current, the energy storage element being intended to be charged by a rectified current supplied by the rectifier, - a controlled switch interposed between the energy storage element and the transmission module, and - a threshold detector configured to switch the controlled switch to the conducting position when a voltage across the energy storage element is greater than or equal to a first threshold, and configured to switch the controlled switch to the non-conducting position when a voltage across the energy storage element is less than or equal to a second threshold.

[0014] The electronic module may further include: - a microcontroller intended to be powered by the energy storage element and electrically connected to the antenna, and - a memory connected to the microcontroller and configured to memorize a number of openings and / or a number of closings of the opening.

[0015] The electronic module may further comprise: - a sensor intended to be powered by the energy storage element, and - a microcontroller intended to be powered by the energy storage element and connected to the sensor.

[0016] The monitoring system may further include an electronic control unit comprising a receiving module, the receiving module being configured to receive a signal emitted by said transmission module.

[0017] The invention also relates to a method of monitoring an opening by means of a monitoring system as defined above, the monitoring method comprising: - the reception by the receiver module of the electronic control unit of a signal emitted by the antenna of the detection device following the opening and / or closing of the opening, then - the determination of the condition of the opening, in particular the condition of the opening, and / or the determination of the number of openings and / or closings of the opening, and / or the determination of environmental parameters of the opening. Presentation of the figures

[0018] These objects, features and advantages of the present invention will be described in detail in the following description of various particular embodiments given by way of non-limiting example in relation to the accompanying figures, among which:

[0019] Fig. 1 is a schematic view of a monitoring system according to one embodiment of the invention.

[0020] Fig. 2 is a schematic cross-sectional view of a first embodiment of a detection device for the monitoring system.

[0021] Fig. 3 is a schematic cross-sectional view of a second embodiment of a detection device for the monitoring system.

[0022] Figure 4 is a schematic cross-sectional view of a third embodiment of a detection device for the monitoring system.

[0023] Fig. 5 is a perspective view illustrating a first embodiment of integrating a converter of the detection device into a sleeper.

[0024] Fig. 6 is a perspective view illustrating a second embodiment of integrating a converter of the detection device into a sleeper.

[0025] Fig. 7 is a cross-sectional view illustrating a first embodiment of integrating an electronic module of the detection device into a frame.

[0026] Fig. 8 is a cross-sectional view illustrating a second embodiment of integrating an electronic module of the detection device into a frame.

[0027] Fig. 9 is a cross-sectional view illustrating a third embodiment of integrating an electronic module of the detection device into a frame.

[0028] Fig. 10 is a perspective view illustrating a first embodiment of an actuator of the detection device.

[0029] Fig. 11 is a cross-sectional view illustrating a second embodiment of an actuator of the detection device, the actuator being presented in three different positions.

[0030] Fig. 12 is a schematic view illustrating a first embodiment of an electronic module of the detection device.

[0031] Fig. 13 is a schematic view illustrating a second embodiment of an electronic module of the detection device.

[0032] Fig. 14 is a schematic view illustrating a third embodiment of an electronic module of the detection device. Detailed description

[0033] Figure 1 schematically illustrates a monitoring system 1 for an opening 2 according to an embodiment of the invention. The opening 2 is rotatable relative to a frame 3 between an open and a closed position. The frame 3 may be anchored to a wall, or more generally, to a rigid building structure. The frame 3 includes an opening 4 that can be closed by the opening 2 when it is in the closed position and left uncovered when it is in the open position. In the embodiment shown, the opening 2 is a door and the frame 3 is a door frame. Alternatively, the invention could be adapted for any other type of opening, for example, a window, a door leaf, a gate, or a swing gate. As we will see in more detail later, the opening and fixed parts can be made from different materials including wood, PVC or aluminum.

[0034] The opening 2 is movable in rotation relative to the fixed frame 3 about an axis of rotation Z, also called the "hinge axis Z". The axis of rotation Z is a vertical axis. For this purpose, hinges 5 are provided along a vertical side of the opening 2. Alternatively, the invention could also be adapted for an opening movable in rotation about a non-vertical axis, for example a horizontal axis, as is the case for a roof window.

[0035] The sash 2 may have a generally rectangular shape, and the axis of rotation Z may be positioned along a vertical side of the sash. The sash 2 comprises a first vertical edge 6 extending along the side of the axis of rotation Z and a second vertical edge 7 opposite the first edge 6. The first edge 6 thus corresponds to the edge of the sash extending parallel to the axis of rotation Z and closest to the axis of rotation Z. The second edge 7 corresponds to the edge of the sash extending parallel to the axis of rotation Z and furthest from the axis of rotation Z. The frame 3 comprises a first stile 8 extending opposite the first edge 6, and a second stile 9 extending opposite the second edge 7 when the sash 2 is in the closed position. The first stile 8 supports the hinges 5.

[0036] The opening 2 can be either of the square-edged or overlapping type. In all cases, the first stile 8 includes a face 10 extending parallel to the first edge 6 when the opening 2 is in the closed position. An air gap is generally provided between the face 10 and the first edge 6 when the opening is in the closed position.

[0037] The monitoring system 1 includes a detection device 11 advantageously arranged at the interface between the first edge 6 and the first stile 8. Such an arrangement is particularly discreet. The detection device 11 comprises a first part 12 attached to the sash 2 and a second part 13 attached to the frame 3. These two parts 12, 13 cooperate with each other by The method involves making the detection device 11 autonomous, that is, independent of an external power source such as a battery. As we will see later, the detection device 11 is designed to operate using the energy generated by the opening or closing of the door or window. The detection device 11 is capable of emitting a signal 14 to an electronic control unit 15 comprising a receiver module 44 adapted to detect the signal 14. The electronic control unit 15 can then calculate and / or determine and / or present a set of useful information on the state of the door or window and / or on the state of the environment around the door or window, or even on a usage history of the door or window.

[0038] The detection device 11 mainly comprises a converter 16, an electronic module 17, and an actuator 18. In relation to [Fig. 2], the converter 16 and the electronic module 17 can be fixed to the frame 3 while the actuator 18 is fixed to the sash 2. Alternatively, and as illustrated in [Fig. 3], this configuration could be reversed: the converter 16 and the electronic module 17 can be fixed to the sash 2 while the actuator 18 is fixed to the frame 3.

[0039] The converter 16 is configured to convert the mechanical energy of opening or closing the sash 2 into electrical energy. According to a first embodiment, the converter 16 may comprise an electrical coil and a magnet movable relative to the electrical coil. The electrical coil is preferably fixed to the frame (or respectively to the sash), while the magnet is movable relative to this frame (or respectively this sash). The movement of the magnet relative to the electrical coil can be achieved by means of a mechanical opening or closing action of the sash. The movement of the magnet causes, by electromagnetic induction, the appearance of an electric current in the electrical coil. The movement of the magnet relative to the electrical coil can be a translational movement or a rotational movement.Assuming the magnet is free to rotate relative to the electric coil, the magnet or coil can be fixed to an axis supported by a bearing, particularly a roller bearing. In one embodiment, the axis of rotation of the magnet or electric coil can coincide with an axis of rotation of the opening. The rotation of the magnet relative to the coil is then achieved by a mechanical action of opening or closing the opening. In a second embodiment, the converter 16 can include a piezoelectric element fixed to a beam designed to vibrate. The beam can also be equipped with a first magnet or a first ferromagnetic element. The movement of a second magnet relative to the first magnet or the first ferromagnetic element can cause the beam to vibrate. The vibration of the beam is then... obtained through a mechanical action of opening or closing the opening. In all cases, the converter 16 is capable of producing an electrical current with a damped sinusoidal voltage following a mechanical action on the opening.

[0040] The electronic module 17 is thus intended to be powered by electrical energy from the converter 16. It is therefore the mechanical energy of opening or closing the cover that ultimately enables the electronic module 17 to function. The electronic module 17 is electrically connected, in particular by an electrical connecting wire, to the converter 16. The electronic module 17 includes a transmission module 19 capable of transmitting the signal 14 to the electronic control unit 15.

[0041] In one embodiment, the transmission module 19 is configured to emit a radio signal, for example according to the Bluetooth® or Zigbee® standard, particularly of the low-energy type. In this case, the transmission module 19 includes an antenna. Alternatively or in addition, the transmission module 19 includes a radio-frequency identification (RFID) device. In one embodiment, the electronic module 17 may include a first transmission module configured to emit a radio signal, for example according to the Bluetooth® or Zigbee® standard, and a second transmission module including a radio-frequency identification (RFID) device.

[0042] The electronic control unit 15 can be a portable electronic device, for example a smartphone, intended to be brought close to the electronic module 17. The signal 14 emitted by the transmission module 19 can be a low-power signal echoing a first signal emitted by the portable electronic device. Alternatively, the electronic control unit 15 can be a stationary electronic device, installed in the building, powered by electricity from a power distribution network or a battery, and potentially located further from the transmission module 19. In this case, the transmission module 19 is configured to emit a higher-power signal 14 to reach said stationary electronic device. An advantage of using stationary electronic device is that it can be always active and ready at any time to receive a signal emitted by the transmission module 19.The collection of information from the detection device is therefore independent of any patrol during which an electronic control unit 15 might be brought near the transmission module 19. This allows for continuous monitoring of the building. The stationary electronic equipment can, in particular, receive a signal immediately after the opening or closing of the opening.

[0043] The actuator 18 is a mechanical component intended to cooperate with the converter 16 to convert mechanical energy for closing or opening the opening 2 into electrical energy. In particular, assuming that the converter 16 includes an electrical coil and a magnet, the actuator 18 is configured to move the magnet relative to the electrical coil during a closing or opening movement of the sash, specifically in translation or rotation. Assuming that the converter 16 includes a piezoelectric element fixed to a beam, the actuator 18 is configured to vibrate the beam during a closing or opening movement of the sash.

[0044] According to the invention, either the actuator 18 is fixed to the sash 2 and protrudes from the edge 6 of the sash on the side of said axis of rotation Z. In this case, the converter 16 is integrated into a recess 21 formed in the stile 8 of the frame 3. Or, the actuator 18 is fixed to the frame 3 and protrudes from the face 10 of the frame on the side of said axis of rotation. In this case, the converter 16 is integrated into a recess 21' formed in the sash 2. In all cases, the actuator 18 and the converter 16 are positioned such that the actuator 18 moves towards the converter 16 during a closing movement of the sash and moves away from the converter 16 during an opening movement of the sash. The actuator 18 and the converter 16 are positioned opposite each other, that is to say, one in front of the other, at least when the opening 2 is in the closed position.The actuator 18 is intended to penetrate at least partially into the recess 21, 21' when the opening is in the closed position. The dimensions of the recess 21, 21' are adapted to allow rotational movement of the actuator 18 around the axis of rotation Z relative to the recess.

[0045] Positioning the actuator 18 and the converter 16 close to the Z-axis of rotation provides a significant lever arm, which multiplies the force exerted by the user operating the opening 2. Any mechanical resistance caused by the operation of the converter 16 and / or by contact between parts of the detection device 11 is thus imperceptible to the user. The risk of the opening not closing properly is reduced. Furthermore, during an opening or closing operation, the displacement of the first edge 6 relative to the first stile 8 is relatively small compared to the displacement of the second edge 7 relative to the second stile 9. This small displacement allows the actuator 18 and the converter 16 to cooperate over a wide angular range of the opening 2.In addition to being discreet, the integration of the detection device 11 at the level of the Z-axis of rotation allows for more efficient energy recovery in a way that is less perceptible to the user.

[0046] It is understood from the above that the first part 12 of the detection device 11 is designed to follow a rotational movement when the opening is operated, while the second part 13 is fixed. Direct contact between a rotating element A fixed element is likely to generate friction and / or disrupt the operation of the converter 16. Therefore, advantageously, the detection device 11 further includes a pusher 22 interposed between the actuator 18 and the converter 16. The pusher 22 is free to move translationally within the recess 21, 21'. The pusher comprises a first bearing surface 23 intended to make direct contact with the actuator 18 and a second bearing surface 24 intended to make direct contact with the converter 16. Thus, friction is established at the interface between the actuator 18 and the pusher 22, thereby protecting the converter 16.

[0047] According to one embodiment, the push button 22 is securely attached to the converter 16 to prevent it from being lost. The push button 22 can, for example, be clipped to the converter 16 and / or held in place by stops that limit its travel. If the converter includes a magnet, this magnet could be attached, in particular clipped, to the push button 22.

[0048] Advantageously, the recess 21, 21' is a profiled hole, that is, one with a constant cross-section in the direction in which the hole extends. This allows the pusher 22 to be guided in translation directly by the edges of the recess. The recess can advantageously be obtained by drilling or routing, particularly when the stile or opening in which the recess is made is made of wood.

[0049] Alternatively, and as shown in [Fig. 4], the recess 21,21' can be pre-disposed in a PVC or aluminum profile element. In this case, no drilling of such an element is necessary. When the recess is pre-disposed in a PVC or aluminum profile element, stop means can optionally be provided to prevent the converter from sliding vertically along the profile element.

[0050] Figure 5 illustrates an embodiment in which the recess 21 is formed from the face 10 of the first upright 8, opposite the first edge 6. The recess 21 may, in particular, take the form of a mortise, especially one with a rectangular cross-section. The converter 16 comprises a prismatic shape complementary to the shape of the mortise.

[0051] Figure 6 illustrates an embodiment in which the recess 21 is formed from a lateral face 34 of the first upright 8. This lateral face 34 extends perpendicularly to the face 10 of the first upright. The recess 21 is then extended by a hole 35 connecting the recess 21 to the face 10. The recess 21 and the hole 35 can be easily made by drilling, using drill bits of suitable diameters. The converter 16 can be inserted into the recess 21 from the lateral face 34, while the pusher 22 is inserted through the hole 35.

[0052] The embodiments shown in Figures 5 and 6 are preferably implemented with a wooden frame, since drilling and / or routing wooden elements is easier to perform. "Wooden" is understood to mean any material made of raw wood and any material containing wood fiber. As mentioned previously, these embodiments can of course be adapted to a configuration in which the converter is integrated into the opening 2, particularly a wooden opening.

[0053] According to the embodiment shown in Figures 2 and 4, the electronic module 17 is positioned on the surface of the frame. According to the embodiment shown in [Fig. 3], the electronic module 17 is positioned on the surface of the sash. In both configurations, a through-hole 25 is provided to connect the recess 21, 21' in which the converter 16 is located with a face of the frame or, respectively, of the sash against which the electronic module 17 is fixed. As will be seen in more detail later, the electronic module 17 preferably comprises a printed circuit board, the printed circuit board extending parallel to the surface of the frame or sash against which the electronic module 17 is fixed.

[0054] Figures 7 to 11 illustrate various alternative or complementary embodiments. In these embodiments, it is assumed that the converter 16 and the electronic module 17 are fixed to the frame 3, while the actuator 18 is fixed to the sash 2. As explained previously, these various embodiments could be transposed to an inverted configuration, i.e., with the converter 16 and the electronic module 17 fixed to the sash and the actuator 18 fixed to the frame.

[0055] According to the embodiment of [Fig. 7], a cavity 26, for example a counterbore, is provided on one face of the frame. The electronic module 17 is positioned in the cavity 26. The electronic module 17 is thus protected and more discreetly integrated into the frame. The opening 25 extends from the bottom of the cavity 26 to the recess 21. This embodiment allows an electronic control unit 15 to be positioned as close as possible to the transmission module 19.

[0056] The embodiment of [Fig. 8] is similar to the embodiment of [Fig. 7], but with the addition of a cover 27 covering the electronic module 17. The cover 27 is advantageously flush with the face of the frame from which the cavity 26 is formed. The cover protects the electronic module 17 but forms a barrier between the transmission module 19 and an electronic control unit 15.

[0057] According to the embodiment of [Fig. 9], the cavity 26 in which the electronic module 17 is inserted is formed from the face 10 of the frame extending opposite the first edge 6, or from a face opposite face 10. According to this embodiment, the integration of the electronic module 17 is even more discreet since no opening is made in the visible faces of the frame when the sash is in the closed position. The thickness el of at least one wall 28 of the frame extending from the electronic module is advantageously between 5 mm and 10 mm inclusive. Such a thickness el is both sufficiently large to ensure adequate rigidity of said wall 28, and sufficiently small so as not to significantly attenuate a low-power signal emitted by the transmission module 19. As before, the cavity 26 can be made by drilling and / or routing.

[0058] According to yet another embodiment, the electronic module 17 could form with the converter 16 a monobloc assembly, that is to say, a single unit.

[0059] Figure 10 illustrates one embodiment of the actuator 18. According to this embodiment, the actuator 18 comprises a lug 29 projecting from the first edge 6 of the opening 2. The lug comprises a distal end 30 intended to cooperate with the converter, in particular to make direct contact against the first bearing surface 23 of the pusher 22. The lug 29 extends in a direction X perpendicular to the axis of rotation Z. The lug 29 may, for example, comprise a cylindrical shape whose axis of revolution is parallel to the direction X.

[0060] Incorrect positioning of the actuator relative to the converter 16 can lead to malfunction of the detection device 11, or even damage to it. Advantageously, the actuator 18 includes a means for adjusting a distance dl separating said distal end 30 from the first edge 6. Such an adjustment means makes it possible to adapt the mechanical stress of the actuator 18 on the converter 16. This makes it possible to compensate for any initial positioning error and / or any movements, sagging, or deformations of the frame and / or the sash. Indeed, particularly when the frame and the sash are made of wood, these elements can undergo dimensional variations over time.

[0061] According to one embodiment, the lug 29 comprises two parts screwed together. Tightening or loosening these two parts allows the distance dl to be changed. The distal end 30 of the lug 29 may include a recess 31, for example a recess compatible with a flathead screwdriver, to facilitate tightening or loosening these two parts.

[0062] Figure 11 illustrates another embodiment of the actuator 18, which can be freely combined with the embodiment shown in Figure 10. According to this embodiment, the lug 29 is movable parallel to the direction in which it extends between an active position P1, where the lug is able to cooperate with the converter, and a passive position P2, where the lug is no longer able to cooperate with the converter. The lug 29 is therefore movable parallel to the direction X, that is, perpendicular to the plane in which the first edge 6 extends. The distance d1 separating said end The distal distance 30 of the first slant 6 is greater when the lug 29 is in the active position PI than when it is in the passive position P2. The mobility of the lug 29 allows the detection device 11 to be easily activated or deactivated.

[0063] The actuator 18 may further include an elastic means 32 such as a spring cooperating with the lug. The lug may, in particular, be mounted to slide within a base 33. The elastic means 32 may, in particular, tend to move the lug towards its active position PL. The elastic means 32 provides protection against the risk of damage to the converter 16: in the event of movements and / or deformations and / or sagging of the frame or the sash, the trajectory of the lug 29 could become too long and risk damaging the converter 16. Thanks to the presence of the elastic means 32, excessive forces are prevented from being transmitted to the converter 16.

[0064] Advantageously, the elastic means 32 allows a variation of the distance dl around its active position PI and around its inactive position P2. The elastic means 32 ensures that the lug 29 does not transmit an excessive mechanical force to the converter 16.

[0065] The actuator 18 can be configured so that, when the lug is pressed in the direction of the first edge 6 to a pressed position P3, it moves from its active position P1 to its inactive position P2 or from its inactive position P2 to its active position P1. The distance d1 is greater when the lug 29 is in the inactive position P2 than when it is in the pressed position P3. The actuator 18 can thus be easily moved from its active position to its inactive position, and vice versa, by simply pushing on the lug. In the event of a significant force exerted against the actuator 18, it is displaced to its position P3, which causes it to move from its active position to its inactive position. This provides a safety mechanism to protect the converter 16.

[0066] Advantageously, the actuator 18 has a cylindrical shape and can be fitted into a hole drilled in the first edge 6. Advantageously, the actuator 18 can include a "push-to-open" mechanism, commonly referred to by the English term "push to open," and classically used in woodworking to allow a drawer or cupboard door to be opened by pressing on the door. Such an actuator may also be called a "latch" or "spring-loaded retractable latch," and generally includes a ratchet and / or a cam. The cylindrical base 33 of such a mechanism is fitted into a hole drilled in the first edge 6 of the opening, for example, a hole with a diameter of 8 mm or 10 mm. The lug 29 projects from the base in the X direction.

[0067] Figure 12 now schematically illustrates a first simplified embodiment of the electronic module 17. According to this embodiment, the electronic module 17 comprises:

[0068] - an electronic card 36, that is to say a printed circuit board,

[0069] - an energy storage element 37 intended to be charged by the converter, by for example, a capacitor, - a rectifier 38 configured to convert an alternating current supplied by the converter 16 into a rectified current. The rectifier 38 is intended to provide a rectified electrical current for charging the energy storage element 37. The rectifier 38 may, for example, comprise a diode bridge as shown in [Fig. 11], or any other equivalent electronic assembly.

[0070] - a controlled switch 39 interposed between the energy storage element and the transmission module 19. Depending on the position of the controlled switch 39, the transmission module 19 is either electrically connected to the energy storage element 37 or electrically isolated from the energy storage element 37. The transmission module 19 may advantageously include an antenna and a microcontroller coupled to the antenna. The microcontroller is then programmed to activate the antenna only when the microcontroller is supplied with electrical power, and

[0071] - a threshold detector 40 configured to switch the controlled switch 39 to The switch is in the conducting position when the voltage across the energy storage element is greater than or equal to a first threshold, and configured to switch the controlled switch to the non-conducting position when the voltage across the energy storage element is less than or equal to a second threshold. The first threshold could be, for example, on the order of 2 or 3 volts. The second threshold could be, for example, approximately 1 volt lower than the first threshold.

[0072] When a user opens or closes the gate 2, the actuator 18 exerts a mechanical action on the converter 16, which in turn produces an electric current that powers the electronic module 17. The electric current generated by the converter 16 has a damped sinusoidal voltage. The alternating current is rectified by the rectifier 18. The rectified current can recharge the energy storage element 37. As the energy storage element 37 is charged, the voltage across its terminals increases until it reaches the first threshold. When the first threshold is reached, the threshold detector 40 activates the controlled switch 39, causing it to close. An electric current from the energy storage element 37 then supplies the transmission module 19.The transmission module 19 then emits a signal, in particular a radio frequency signal, which can be detected by the electronic control unit 15, in particular stationary electronic equipment that remains constantly listening for a potential signal emitted by the electronic module 17. The electronic control unit 15 can then communicate with a human-machine interface and provide information as to whether the opening has been opened or closed. Alternatively. Alternatively, the electronic control unit 15 can count the number of times the opening is activated, allowing for the compilation of statistics regarding its use. When the transmission module 19 emits a signal, it consumes electrical energy supplied by the energy storage element 37, and the voltage across this element decreases until it falls below or equals the second threshold. When the second threshold is reached, the controlled switch 39 becomes closed again. Thus, the energy storage element 37 can be recharged during the next opening or closing cycle of the opening.

[0073] Figure 13 schematically illustrates a second embodiment of the electronic module 17. In addition to the components described above, the electronic module 17 further comprises a microcontroller 41 and a memory 42. The microcontroller 41 is a processing unit and can therefore perform operations. The microcontroller 41 is intended to be powered by the energy storage element 37 and is electrically connected to the transmission module 19. The memory 42 is intended to store digital information. The memory 42 is connected to the microcontroller 41. The microcontroller 41 and the memory 42 are configured to count and store a number of openings and / or a number of closings of the door.

[0074] The memory 42 can be volatile or non-volatile. If the memory 42 is volatile, the data stored in the memory is lost as soon as the power is turned off. In this case, the transmission module 19 is configured to send a signal immediately after the data is written to the memory.

[0075] Advantageously, the memory 42 is non-volatile. Thus, the data stored in the memory is retained even when the power is off. The use of non-volatile memory makes it possible to create a usage history for the opening, for example, to count the number of times the opening has been actuation. According to this embodiment, when the first threshold is reached, the threshold detector 40 activates the controlled switch 39 so that it becomes conductive. An electrical current from the energy storage element 37 then supplies the microcontroller 41. The microcontroller 41 increments a counter in the non-volatile memory 42. Thus, the electronic module 17 counts the number of times the opening has been activated. This operation therefore does not need to be performed in real time by stationary electronic equipment.

[0076] Next, the counter stored in memory 42 can be accessed by the electronic control unit 15, for example via an RFID protocol. In this case, the electronic control unit 15, which is preferably a portable electronic control unit, is brought close to the electronic module 17 at a short distance from This module emits a signal that is captured by the transmission module 19. The power of the signal emitted by the electronic control unit 15 allows the counter stored in memory 42 to be read and this value to be transmitted back to the electronic control unit 15 by a signal 14. Once the current value of the counter has been transmitted, it can optionally be reset to zero by the electronic control unit 15. It is therefore understood that this embodiment is advantageously combined with the use of an RFID-type transmission module 19.

[0077] Alternatively, the transmission module 19 could also be configured to emit a radio signal and operate as in the first embodiment. In this case, the transmission module 19 can be configured to emit a signal immediately after data is written to memory. Alternatively, the transmission module 19 can be configured to emit a signal only when the counter reaches a given value.

[0078] Advantageously, in addition to transmitting the value of the counter stored in memory 42, the electronic module can be configured to transmit a unique identifier of the detection device 11, which makes it easier to process the data received by the electronic control unit 15.

[0079] Figure 14 schematically illustrates a third embodiment of the electronic module 17. In addition to the components previously described, the electronic module 17 also includes a sensor 43 intended to be powered by the energy storage element 37 and connected to the microcontroller 4L. The sensor 43 can be intended to capture a physical quantity related to the operation of the opening 2, or to the operation of the detection device 11, or to the environment around the opening 2. This physical quantity is then transmitted to the microcontroller in the form of a digital or analog data and can be stored in the memory 42 and / or transmitted directly to the transmission module 19 which then emits a signal in which said physical quantity is coded.The physical quantity can therefore be transmitted immediately to an electronic control unit 15 or collected later by bringing an electronic control unit 15 close to the transmission module, as explained previously.

[0080] Different types of sensors can be considered. Sensor 43 can be, for example, a temperature sensor or a humidity sensor. The data provided by this sensor can thus contribute to developing a heating and / or air conditioning control system for the building in which the opening is integrated. Sensor 43 can also be an accelerometer. An accelerometer makes it possible to detect and / or quantify any vibrations during the operation of the opening. Such a sensor thus makes it possible to determine the level of wear on the opening, in particular on the hinges 5, and / or a mechanical problem related to the operation of the opening. Sensor 43 can It can also be a voltage sensor across the terminals of the energy storage element 37. Such a sensor allows for strategies of signal transmission by the transmission module 19 and / or data storage in the memory 42, depending on the voltage measured by the sensor. The electronic module 17 can also include several sensors from among those mentioned previously, each sensor being intended to be powered by the energy storage element 37 and connected to the microcontroller 41.

[0081] Advantageously, the transmission module 19, the energy storage element 37, the rectifier 38, the controlled switch 39, the threshold detector 40, the microcontroller 41, the memory 42 and the sensor 43 are all supported by the electronic board 36. It can also be envisaged that the detection device 11 includes auxiliary sensors, not supported by the electronic board 36, and not powered by the energy storage element 37 but still connected to the microcontroller 41.

[0082] Thanks to the invention, various building monitoring methods can be implemented. These methods are simple to implement since they are independent of an energy source from an electrical power distribution network. When a user operates the opening, part of the operating energy is used to power the detection device 11. Information relating to the use of the opening or its environment can thus be transmitted to the electronic control unit 15 via the transmission module 19. This information can then be used to determine whether the opening is open or closed, and / or the number of times the opening has been used, and / or the wear and tear of the opening, and / or environmental parameters of the opening, including temperature and / or humidity information in the opening's environment.

[0083] The detection device 11 is simple to manufacture and simple to install, particularly when the sash and frame are made of wood. It can also be easily integrated into PVC or aluminum profile elements. The detection device 11 can therefore be retrofitted to existing sash and frame assemblies.

Claims

Demands

1. A monitoring system (1) comprising a fixed frame (2) and a movable sash (3) rotating relative to the fixed frame about an axis of rotation (Z) between an open position and a closed position, characterized in that it comprises a detection device (11), the detection device comprising: - a converter (16) configured to convert mechanical energy into electrical energy, - an electronic module (17) comprising a transmission module (19) capable of emitting a signal, the electronic module being electrically connected to the converter and intended to be supplied with electrical energy by the converter, and - an actuator (18) intended to cooperate with the converter to convert mechanical energy of closing or opening of the sash into electrical energy, and in that: the actuator is integral with the sash and protruding from a first edge (6) of the sash on the side of said axis of rotation,and the converter is integrated into a recess (21) formed in the frame opposite the actuator, or: the actuator is fixed to the frame and protruding from a face (10) of the frame on the side of said axis of rotation, and the converter is integrated into a recess (21') formed in the sash opposite the actuator.

2. A monitoring system according to the preceding claim, characterized in that the detection device comprises a pusher (22) movable in translation within the recess, the pusher comprising a first bearing surface (23) intended to come into direct contact with the actuator and a second bearing surface (24) intended to come into direct contact with the converter.

3. A monitoring system according to any one of the preceding claims, characterized in that the converter (16) comprises: - an electric coil and a magnet movable relative to the electric coil, or - an element made of piezoelectric material fixed on a beam intended to vibrate.

4. A monitoring system according to any one of the preceding claims, characterized in that the actuator (18) comprises a lug (29) projecting from the first edge (6) of the opening or from said face (10) of the fixed, the lug comprising a distal end (30) intended to cooperate with the converter (16), the actuator further comprising a means for adjusting a distance (dl) separating said distal end from said edge or from said face.

5. A monitoring system according to any one of the preceding claims, characterized in that the actuator (18) comprises a lug (29) projecting from the first edge (6) of the opening or from said face (10) of the fixed, the lug being movable parallel to the direction in which it extends between an active position (PI) where the lug is able to cooperate with the converter (16) and a passive position (P2) where the lug is no longer able to cooperate with the converter.

6. Surveillance system according to any one of the preceding claims, characterized in that the transmission module (19) is configured to emit a radio signal, for example according to the Bluetooth® or Zigbee® standard, and / or in that the transmission module (19) includes a radio identification device.

7. A monitoring system according to any one of the preceding claims, characterized in that the electronic module (17) comprises: - an electronic board (36) - an energy storage element (37) intended to be charged by the converter, - a rectifier (38) configured to convert an alternating current supplied by the converter (16) into a rectified current, the energy storage element being intended to be charged by a rectified current supplied by the rectifier, - a controlled switch (39) interposed between the energy storage element and the transmission module (19), and - a threshold detector (40) configured to turn the controlled switch on when a voltage across the energy storage element is greater than or equal to a first threshold,and configured to switch the controlled switch to the non-conducting position when the voltage across the energy storage element is less than or equal to a second threshold.

8. A monitoring system according to the preceding claim, characterized in that the electronic module (17) further comprises: - a microcontroller (41) intended to be powered by the energy storage element (37) and electrically connected to the antenna (19), and - a memory (42) connected to the microcontroller and configured to store a number of openings and / or a number of closings of the opening.

9. Monitoring system according to claim 7 or 8, characterized in that the electronic module (17) further comprises: - a sensor (43) intended to be powered by the energy storage element, and - a microcontroller (41) intended to be powered by the energy storage element and connected to the sensor.

10. A monitoring system according to any one of the preceding claims, characterized in that it further comprises an electronic control unit (15) comprising a receiving module (44), the receiving module being configured to receive a signal (14) emitted by said transmitting module (19).

11. Method of monitoring an opening by means of a monitoring system (1) according to the preceding claim, characterized in that it comprises: - the reception by the receiving module (44) of the electronic control unit (15) of a signal (14) emitted by the antenna (19) of the detection device (11) following the opening and / or closing of the opening, then - the determination of a state of the opening, in particular a state of wear of the opening, and / or the determination of a number of openings and / or closings of the opening, and / or the determination of environmental parameters of the opening.

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