Method for controlling a motorized drive device for a covering device of a closure, covering or solar-protection facility, and control system

Abstract

The invention relates to a method for controlling a motorized drive device (5) for a covering device (3) of a closure, covering or solar-protection facility (100) comprising a roll-up screen (2) that can be wound onto a winding tube (4), the screen (2) having a solar-radiation permeability that is dependent on the intensity of a mechanical tensile stress applied to the screen (2) by the motorized drive device (5), the motorized drive device (5) comprising an electromechanical actuator (11) intended to be assembled with the roll-up screen (2), the control method comprising: - a first step (S110) of measuring a first temperature or of estimating the first temperature or of obtaining the first temperature; - a second step (S120) of measuring a first luminosity or of estimating the first luminosity or of obtaining the first luminosity; - a third step (S130) of calculating a control setpoint for the motorized drive device (5) so as to obtain a permeability defined according to a rule as a function of the first temperature and of the first luminosity; and - a fourth step (S140) of applying the control setpoint, the rule defining permeability values that decrease with the temperature and decrease with the luminosity.

Description

[0001] DESCRIPTION

[0002] Method for controlling a motorized drive device for a shading device of a closure, shading or solar protection installation.

[0003] The present invention relates to a method for controlling a motorized drive device for a shading device in a shutter, blind, or sun protection system comprising a retractable screen, the motorized drive device comprising an electromechanical actuator. The invention further relates to a drive device operating according to such a control method. The invention also relates to a computer program product comprising program code instructions recorded on a computer-readable medium for implementing the steps of such a control method. Finally, the invention relates to a data storage medium on which a computer program comprising program code instructions for implementing such a control method is recorded.

[0004] In general, the present invention relates to the field of shading devices comprising a motorized drive mechanism that moves a retractable screen between at least one first position and at least one second position. These devices are used in closure, shading, or solar protection installations.

[0005] A motorized drive system includes an electromechanical actuator for a screen. The screen is made of a stretchable material that allows more or less light to filter through depending on the deformation applied to it. This material can be a fabric made by interlacing warp and weft threads. Varying gaps exist between each thread of the same type and also between threads of different types. These gaps define a porosity that allows light to pass through in proportion to the area of ​​the gaps. By using weft and / or warp threads with a specific interlacing pattern and elasticity, it is possible to vary the areas of the gaps. The ratio of the area occupied by the gaps to the total surface area of ​​the screen is called the screen's openness ratio.In the case of a stretchable elastic fabric, this opening ratio varies with the elastic deformation of the screen and therefore, for example, according to a mechanical tensile or tensile stress that the motorized drive device applies to the screen. Such a motorized drive device is described in patent application EP2847411.

[0006] The discussion here regarding fabrics can be applied to other non-woven screens whose structure contains gaps or pores, for example, as described in patent application EP0795674. In this case as well, an openness ratio can be defined. When the screen is elastically extensible, the openness ratio can vary from a minimum value obtained in the absence of tensile stress to a maximum value beyond which irreversible deformations may occur.

[0007] The openness factor is used to characterize the degree of opacity of the screen, or in other words, the degree of solar permeability of the screen. The openness factor is preferably expressed as a percentage. Openness factors can vary between the following for the same screen:

[0008] - a low value close to 0%, typically 0.5% and

[0009] - a value of approximately 10%,

[0010] depending on the tensile stress applied to the screen.

[0011] It appears that these screens can improve thermal and / or visual comfort in buildings. These screens also improve the energy efficiency of buildings.

[0012] There is a need to integrate these solutions effectively and appropriately into buildings.

[0013] The present invention aims to provide solutions to the aforementioned challenges and to offer a control method that improves the situation. In particular, the invention proposes a simple and reliable control method that allows for the efficient integration of variable solar permeability screens into buildings.

[0014] According to the invention, a method allows for the control of a motorized drive device for a shading device in a shutter, shading, or solar protection system comprising a screen that rolls up on a winding tube. The screen exhibits solar radiation permeability that depends on the intensity of a mechanical tension applied to the screen by the motorized drive device. The motorized drive device includes an electromechanical actuator for assembly with the roll-up screen. The control method comprises:

[0015] - a first step of measuring a first temperature, estimating the first temperature, or obtaining the first temperature,

[0016] - a second step of measuring, estimating, or obtaining an initial brightness level; - a third step of calculating a control setpoint for the motorized drive device in order to obtain a permeability defined according to a rule based on the initial temperature and brightness; and

[0017] - a fourth step in applying the command instruction,

[0018] the rule defining permeability values ​​that decrease with temperature and decrease with light intensity,

[0019] the rule being defined by the relation:

[0020] OF(lum, temp) = OFmin-OFmaxx[(lum-lummin)x(temp-tempmin) / ((lummax-lummin)x(tempmax-tempmin))] p

[0021] with :

[0022] - OF(lum, temp): permeability as a function of the first luminosity and the first temperature,

[0023] - OFmin: a maximum screen permeability value,

[0024] - OFmax: a minimum screen permeability value,

[0025] - lum: the current value of the first brightness,

[0026] - temp: the current value of the first temperature,

[0027] - lumin: a minimum value for the first brightness level,

[0028] - lummax: a maximum value of the first brightness level,

[0029] - tempmin: a minimum value for the first temperature,

[0030] - tempmax: a maximum value for the first temperature,

[0031] - p: a real number,

[0032] Or,

[0033] the rule being defined by:

[0034] - a first brightness threshold (Edark) and a second brightness threshold (Elight) constituting three brightness ranges, and

[0035] - a first temperature threshold (Tcold) and a second temperature threshold (Thot) constituting three temperature domains, and

[0036] - control instructions defining constant permeability values, and - (i) hysterical behavior of the control instructions on at least one brightness domain, preferably on two or three brightness domains, when the temperature varies, and / or (ii) hysterical behavior of the control instructions on at least one temperature domain, preferably on two or three temperature domains, when the brightness varies.

[0037] The rule can be defined by a map based on the first temperature and the first light intensity. The map may show discontinuities.

[0038] Regardless of the initial brightness, the rule defining permeability values ​​as a function of the initial temperature can be concave; in particular, the mapping obtained by the rule defining permeability values ​​as a function of the initial temperature can be concave.

[0039] Regardless of the initial brightness, the rule defining permeability values ​​as a function of the initial temperature can be convex; in particular, the mapping obtained by the rule defining permeability values ​​as a function of the initial temperature can be convex.

[0040] Regardless of the initial temperature, the rule defining permeability values ​​as a function of the initial brightness can be concave; in particular, the mapping obtained by the rule defining permeability values ​​as a function of the initial brightness can be concave.

[0041] Regardless of the first temperature, the rule defining permeability values ​​as a function of the first brightness can be convex; in particular, the mapping obtained by the rule defining permeability values ​​as a function of the first brightness can be convex.

[0042] The first temperature could be:

[0043] - an indoor temperature, or

[0044] - a difference between an outside temperature and an indoor temperature setpoint.

[0045] The first brightness could be:

[0046] - outdoor light, or

[0047] - a difference between an external brightness level and an internal brightness setting.

[0048] The ordering process may include:

[0049] - an action by a user resulting in the emission of a command to the motorized drive device so as to obtain a new permeability different from that defined according to the rule based on the first current temperature and the first current brightness, and

[0050] - a modification of the rule so that the modified rule defines with the first current temperature and the first current brightness a permeability approaching the new permeability or equaling the new permeability.

[0051] The ordering process may include modifying the rule depending on the season. The steps, particularly the first, second, third, and fourth steps, may be iterated:

[0052] - at a first frequency if the solar radiation is incident from one direction or a first set of directions and / or if the intensity of the solar radiation is greater than a first threshold and / or if the screen is open, and

[0053] - at a second frequency otherwise,

[0054] the first frequency being greater than the second frequency.

[0055] The invention also relates to a control system, in particular a control unit for a motorized drive device and / or a motorized drive device for a blackout device for a closing, blackout installation, the control system comprising hardware and / or software elements implementing the method defined above, in particular hardware and / or software elements designed to implement the method defined above.

[0056] The invention also relates to a control system comprising means for implementing the process defined above.

[0057] According to the invention, the computer program product comprises program code instructions recorded on a computer-readable medium to implement the steps of the process defined above when said program runs on a computer.

[0058] According to the invention, the computer program product downloadable from a communication network and / or recorded on a data medium readable by a computer and / or executable by a computer, is characterized in that it includes instructions which, when the program is executed by the computer, lead the latter to implement the process defined above.

[0059] According to the invention, the computer-readable data recording medium on which a computer program is recorded includes program code instructions for implementing the method defined above.

[0060] According to the invention, the computer-readable recording medium includes instructions which, when executed by a computer, lead the computer to implement the process defined above.

[0061] The invention also relates to a signal from a data carrier, carrying the computer program product defined above.

[0062] Other features and advantages of the invention will become apparent in the following description, made with reference to the attached drawings, given by way of non-limiting examples and in which: Figure 1 is a schematic cross-sectional view of an installation according to an embodiment of the invention;

[0063] Figure 2 is a schematic perspective view of the installation illustrated in Figure 1;

[0064] Figure 3 is a schematic axial and partial cross-sectional view of the installation illustrated in Figures 1 and 2, showing an electromechanical actuator of the installation;

[0065] Figure 4 is a flowchart of an execution method of a control process according to the invention;

[0066] Figure 5 is a view of a first mapping used in a first variant of the execution method of the control process according to the invention;

[0067] Figure 6 is a view of a second mapping used in a second variant of the execution method of the control process according to the invention;

[0068] Figure 7 is a view of a third map used in a third variant of the execution method of the control process according to the invention;

[0069] Figure 8 is a table illustrating a logic used in a fourth variant of the execution mode of the control method according to the invention;

[0070] Figure 9 is a table illustrating a logic used in a fifth variant of the execution mode of the control method according to the invention;

[0071] Figure 10 illustrates the hysteretic behavior of the control logic commands in Figure 8, over the temperature domain T <Tcold, quand la luminosité varie;

[0072] Figure 11 illustrates the hysteretic behavior of the control setpoints of the control logic in Figure 8, over the temperature domain Tcold <T<Thot, quand la luminosité varie;

[0073] Figure 12 illustrates the hysteretic behavior of the control logic commands of Figure 8, on the temperature domain T>Thot, when the brightness varies;

[0074] Figure 13 illustrates the hysteretic behavior of the control logic commands in Figure 8, over the temperature domain E <Edark, quand la température varie;

[0075] Figure 14 illustrates the hysteretic behavior of the control setpoints of the control logic in Figure 8, over the temperature domain Edark< E <EI ight, quand la température varie;

[0076] Figure 15 illustrates the hysteretic behavior of the control logic commands in Figure 8, over the temperature range E>Elight, when the temperature varies. First, with reference to Figures 1 and 2, we describe an installation 100 comprising a closing, shading, or solar protection device 3 according to an embodiment of the invention. This installation 100, installed in a building (not shown), has an opening 1 in which a window 40 or a door (not shown) is located. This installation 100 is equipped with a screen 2 belonging to the closing, shading, or solar protection device 3, in particular a motorized roller blind.

[0077] Here, installation 100 includes window 40.

[0078] The window 40 comprises at least one fixed frame 41 and at least one pane of glass 42. The pane of glass 42 is arranged inside the fixed frame 41, particularly in an assembled configuration of the window 40.

[0079] Advantageously, window 40 can, in addition, include at least one opening, not shown.

[0080] Advantageously, the glass 42 can be either mounted in the fixed frame 41, in the case where it is fixed relative to the fixed frame 41, or mounted in a frame of the opening, in the case where it is movable relative to the fixed frame 41, in particular according to a rotational movement, especially in the case of a tilt or casement window, or according to a translational movement, especially in the case of a sliding window in a horizontal or vertical direction, or according to two rotational movements, especially in the case of a tilt-and-turn window.

[0081] The closing, shading, or sun protection device 3 is hereinafter referred to as the "shading device." The shading device 3 comprises the screen 2.

[0082] Here, installation 100 includes the blackout device 3.

[0083] With reference to figures 1 and 2, a roller blind conforming to an embodiment of the invention is described.

[0084] The shading device 3 includes a motorized drive device 5. The motorized drive device 5 includes at least one electromechanical actuator 11 illustrated in Figure 3.

[0085] Advantageously, the shading device 3 further comprises a winding tube 4. The screen 2 is windable onto the winding tube 4. In addition, the winding tube 4 is arranged so as to be driven in rotation by the electromechanical actuator 11.

[0086] Thus, the screen 2 of the occultation device 3 is wound on the winding tube 4 or unwound around it, the winding tube 4 being driven by the motorized drive device 5, in particular by the electromechanical actuator 11. In this way, the screen 2 is mobile between a wound position, in particular high, and an unwound position, in particular low, and vice versa.

[0087] The screen 2 of the shading device 3 is a closing, shading and / or sun protection screen, rolling and unrolling around the winding tube 4, the inner diameter of which is greater than the outer diameter of the electromechanical actuator 11, so that the electromechanical actuator 11 can be inserted into the winding tube 4, when assembling the shading device 3.

[0088] The electromechanical actuator 11, in particular of tubular type, allows the winding tube 4 to be rotated around an axis of rotation X, so as to move, in particular unwind or wind, the screen 2 of the occulting device 3.

[0089] In an assembled state of the occulting device 3, the electromechanical actuator 11 is inserted into the winding tube 4.

[0090] The roller blind, which forms the shading device 3, includes the screen 2, which is of the type with a variable opening ratio depending on the mechanical tensile or tension force applied to the screen by the motorized drive system. The opening ratio characterizes the screen's permeability to sunlight. The opening ratio or permeability is preferably expressed as a percentage. With the same screen, opening ratios can vary between:

[0091] - a low value close to 0%, typically 0.5% and

[0092] - a value of around 10%

[0093] depending on the tensile or tension stress applied to screen 2.

[0094] Screen 2, for example, consists of a canvas. The canvas is guided and held laterally by two lateral tracks 6.

[0095] In the case of a roller blind, the fully retracted position corresponds to the end bar 8, fixed to a free end of the fabric, pressing against an edge of the roller blind's housing 9, or to the end bar 8 stopping in a programmed upper limit position. Furthermore, the fully extended position corresponds to the end bar 8 stopping in a programmed lower limit position, specifically at the height of a locking device. Several locking devices may be provided at different points along the screen's travel to secure the end bar 8 and absorb the mechanical tensile forces exerted on the screen by the motorized drive.

[0096] Here, the screen 2 is configured to be moved, by means of the motorized drive device 5, in particular the electromechanical actuator 11, between an open position, corresponding to the wound-up position and which can also be called the first end-of-stroke position or upper end-of-stroke position FdCH, and a closed position, corresponding to the unwound position and which can also be called the second end-of-stroke position or lower end-of-stroke position FdCB.

[0097] Thus, the electromechanical actuator 11 is configured to drive, in other words drives, in movement the screen 2, between the first end position FdCH and the second end position FdCB, and vice versa, opposite the window 40, in particular the glass 42.

[0098] Preferably, a preferred intermediate position for the roll-up screen can be saved. This corresponds to the fully extended state of the roll-up element with an opening angle chosen by the user. It can represent a compromise desired by the user between limiting direct sunlight and achieving a sufficiently high level of illumination in the building.

[0099] Screen 2 can be placed inside or outside the building.

[0100] One end of the roller blind fabric 3, opposite the final end slat 8, is connected to the winding tube 4.

[0101] The roller tube 4 is positioned inside the housing 9 or simply supported for free rotation on two lateral accessories. The roller blind fabric 3 rolls up and down around the roller tube 4 and is housed, at least partially, inside the housing 9, if applicable.

[0102] Generally, the box 9 is positioned above the opening 1, or in the upper part of the opening 1.

[0103] Advantageously, the motorized drive device 5 is controlled by a control unit forming part of the installation 100. The control unit can be, for example, a local control unit 12 or a central control unit 13.

[0104] Advantageously, the local control unit 12 can be connected, via wired or wireless connection, to the central control unit 13.

[0105] Advantageously, the central control unit 13 can control the local control unit 12, as well as other similar local control units distributed throughout the building.

[0106] The motorized drive unit 5 is preferably configured to execute commands for extending or retracting the screen 2 of the shading device 3, which may be issued, in particular, by the local control unit 12 or the central control unit 13. The motorized drive unit 5 is also configured to apply sustained tensile forces to the screen even when the motorized drive unit 5 is no longer moving and / or is no longer powered. For this purpose, the motorized drive unit 5 advantageously includes a brake 29.

[0107] Installation 100 comprises either the local control unit 12, or the central control unit 13, or the local control unit 12 and the central control unit 13.

[0108] We now describe in more detail and with reference to Figure 3 the motorized drive device 5, including the electromechanical actuator 11, belonging to the installation 100 of Figures 1 and 2.

[0109] The electromechanical actuator 11 includes at least one electric motor 16. Advantageously, the electric motor 16 includes a rotor and a stator, not shown and positioned coaxially around the axis of rotation X of the winding tube 4 in the mounted configuration of the motorized drive device 5.

[0110] Here, the electric motor 16 can be of the electronically commutated brushless type, also called "BLDC" (acronym for the Anglo-Saxon term BrushLess Direct Current) or "permanent magnet synchronous", or of the direct current type.

[0111] Control means for the electromechanical actuator 11, enabling the movement of the screen 2 of the occulting device 3, include at least one electronic control unit 15. This electronic control unit 15 is capable of activating the electric motor 16 of the electromechanical actuator 11 and, in particular, enabling the supply of electrical energy to the electric motor 16.

[0112] Thus, the electronic control unit 15 controls, in particular, the electric motor 16, so as to open or close the screen 2, as described previously.

[0113] The control means for the electromechanical actuator 11 include hardware and / or software means.

[0114] As a non-limiting example, the material means may include at least one microcontroller 31.

[0115] Here, the motorized drive device 5 further includes the electronic control unit 15.

[0116] Advantageously, the electronic control unit 15 further comprises a first communication module 27, specifically for receiving control commands. These commands are issued by a command transmitter, such as the local control unit 12 or the central control unit 13, and are intended to control the motorized drive device 5. Advantageously, the first communication module 27 of the electronic control unit 15 is wireless. Specifically, the first communication module 27 is configured to receive radio control commands.

[0117] Advantageously, the first communication module 27 can also allow the reception of command orders transmitted by wired means.

[0118] Advantageously, the electronic control unit 15, the local control unit 12 and / or the central control unit 13 can be in communication with a weather station, not shown, located inside the building or outside the building, including, in particular, one or more sensors that can be configured to determine, for example, a temperature, a brightness, or a wind speed, in the case where the weather station is located outside the building.

[0119] Advantageously, the electronic control unit 15, the local control unit 12 and / or the central control unit 13 can also be in communication with a server 28, as illustrated in Figure 2, so as to control the electromechanical actuator 11 according to data made available remotely via a communication network, in particular an internet network that can be connected to the server 28.

[0120] The electronic control unit 15 can be operated from the local control unit 12 and / or central control unit 13. The local control unit 12 and / or central control unit 13 is equipped with a control keypad. The control keypad of the local control unit 12 or central control unit 13 includes one or more selection elements 14 and, optionally, one or more display elements 34.

[0121] By way of example, and not as a limitation, selection elements may include push buttons and / or touch-sensitive keys. Display elements may include light-emitting diodes and / or a display, for example, LCD (Liquid Crystal Display) or TFT (Thin Film Transistor). Selection and display elements may also be implemented using a touchscreen.

[0122] Advantageously, the local control unit 12 and / or central control unit 13 includes at least one second communication module 36.

[0123] Thus, the second communication module 36 of the local control unit 12 or central control unit 13 is configured to transmit, in other words, sends, control commands, in particular by wireless means, for example radioelectric, or by wired means. In addition, the second communication module 36 of the local control unit 12 or central control unit 13 can also be configured to receive, in other words, receives, control commands, in particular by the same means.

[0124] Advantageously, the second communication module 36 of the local control unit 12 or central control unit 13 is configured to communicate, in other words, communicates, with the first communication module 27 of the electronic control unit 15.

[0125] Thus, the second communication module 36 of the local control unit 12 or central control unit 13 exchanges control orders with the first communication module 27 of the electronic control unit 15, either unidirectionally or bidirectionally.

[0126] Advantageously, the local control unit 12 is a control point, which can be fixed or portable. A fixed control point can be a control box intended to be fixed to a wall of the building or to a face of the fixed frame 41 of a window 40 or a door. A portable control point can be a remote control, a smartphone, or a tablet.

[0127] Advantageously, the local control unit 12 and / or central control unit 13 further includes a controller 35.

[0128] The motorized drive device 5, in particular the electronic control unit 15, is preferably configured to execute movement commands, including closing and opening, of the screen 2 of the shading device 3. These commands can be issued, in particular, by the local control unit 12 or by the central control unit 13.

[0129] The motorized drive unit 5 can be controlled by the user, for example, by receiving a command corresponding to pressing one or more of the selection elements 14 of the local control unit 12 or central control unit 13. Pressing one selection element commands the rolling movement of the roller screen to the recorded rolled-up end position. Pressing another selection element commands the unrolling movement of the roller screen to the recorded unrolled end position. Finally, preferably, pressing a third selection element commands the rolling or unrolling movement of the roller screen to the preferred recorded intermediate position.

[0130] The motorized drive device 5 can also be controlled automatically, for example by receiving a control command corresponding to at least one signal from at least one sensor 43, 44 forming part of the installation 100 and / or a signal from a clock, not shown, of the electronic control unit 15, in particular the microcontroller 31. The at least one sensor 43, 44 and / or the clock can be integrated, alternatively, not shown, into the local control unit 12 or the central control unit 13. Preferably, the drive device 5 is controlled automatically by receiving a control command generated by the local control unit 12 or central control unit 13 from information received by at least one sensor 43, 44.

[0131] Advantageously, the electromechanical actuator 11 further comprises a housing 17, in particular a tubular one. The electric motor 16 is mounted inside the housing 17, particularly in an assembled configuration of the electromechanical actuator 11.

[0132] The housing 17 is hollow. The housing 17 comprises a first end 17a and a second end 17b. The second end 17b is opposite the first end 17a.

[0133] Advantageously, the electromechanical actuator 11 further includes a crown 30.

[0134] The crown 30 is disposed, or rather configured to be disposed, in the vicinity of the first end 17a of the housing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0135] Here, the housing 17 of the electromechanical actuator 11 is cylindrical in shape, in particular of revolution around the axis of rotation X, and is open at each of its ends 17a, 17b.

[0136] Advantageously, the housing 17 is a tube with a circular cross-section. In one embodiment, the housing 17 is made of a metallic material.

[0137] The material of the electromechanical actuator housing is not limited and can vary. In particular, it can be a plastic material.

[0138] Advantageously, the electromechanical actuator 11 further comprises an output shaft 20.

[0139] Advantageously, the electromechanical actuator 11 further includes a reducer 19.

[0140] Advantageously, the reducer 19 includes at least one reduction stage. The reduction stage may be an epicyclic gear train.

[0141] The type and number of reduction stages of the reducer are not limiting. Advantageously, the electromechanical actuator 11 further includes the previously mentioned brake 29. By way of non-limiting examples, the brake 29 may be a spring brake, a cam brake, a magnetic brake, or an electromagnetic brake.

[0142] Here and as can be seen in figure 3, in particular in the assembled configuration of the electromechanical actuator 11, the brake 29 is configured to be disposed, in other words is disposed, between the electric motor 16 and the reducer 19, that is to say at the output of the electric motor 16.

[0143] Alternatively, not shown, particularly in the assembled configuration of the electromechanical actuator 11, the brake 29 is configured to be arranged, in other words is arranged:

[0144] - between the electronic control unit 15 and the electric motor 16, in other words at the input of the electric motor 16, or

[0145] - between the reducer 19 and the output shaft 20, in other words at the output of the reducer 19, or

[0146] - between two reduction stages of reducer 19.

[0147] Advantageously, the reducer 19 and, optionally, the brake 29 are mounted inside the housing 17 of the electromechanical actuator 11, particularly in the assembled configuration of the electromechanical actuator 11.

[0148] Advantageously, the electromechanical actuator 11 and, more particularly, the electronic control unit 15 further includes an obstacle detection and limit switch device, not shown, during the winding of the screen 2 and during the unwinding of this screen 2, which may be mechanical or electronic.

[0149] Advantageously, the obstacle detection and limit switch device is implemented by means of the microcontroller 31 of the electronic control unit 15 and, in particular, by means of an algorithm implemented by microcontroller 31.

[0150] The winding tube 4 is driven in rotation around the axis of rotation X and the housing 17 of the electromechanical actuator 11, supported by two pivot joints. The first pivot joint is formed at one end of the winding tube 4 by means of the ring 30. The ring 30 thus provides a bearing. The second pivot joint, not shown, is formed at the other end of the winding tube 4, opposite the first end.

[0151] The crown 30 forms, in other words is configured to form or constitute, a rotational guide bearing for the winding tube 4, around the housing 17 of the electromechanical actuator 11, in particular in an assembled configuration of the motorized drive device 5 and, consequently, of the concealing device 3. Advantageously, the electromechanical actuator 11 further includes a torque support 21, which can also be called an "actuator head" or "fixed point".

[0152] Here, the torque support 21 is arranged at the first end 17a of the housing 17 of the electromechanical actuator 11, in particular in the assembled configuration of the electromechanical actuator 11.

[0153] The torque support 21 allows the forces exerted by the electromechanical actuator 11 to be absorbed, in particular the torque exerted by the electromechanical actuator 11, relative to the building structure. The torque support 21 also advantageously allows the forces exerted by the winding tube 4 to be absorbed, including the weight of the winding tube 4, the electromechanical actuator 11, and the screen 2, and ensures that these forces are transferred to the building structure.

[0154] Thus, the torque support 21 of the electromechanical actuator 11 allows the electromechanical actuator 11 to be fixed on a frame 23, in particular to a side wall of the box 9 or on one of the side accessories supporting the winding tube 4.

[0155] Advantageously, the torque support 21 protrudes at the first end 17a of the housing 17 of the electromechanical actuator 11.

[0156] Advantageously, the torque support 21 closes, in other words is configured to close, the first end 17a of the housing 17, particularly in the assembled configuration of the electromechanical actuator 11.

[0157] Furthermore, the torque support 21 of the electromechanical actuator 11 can support at least part of the electronic control unit 15.

[0158] Advantageously, the torque support 21 is fixed to the housing 17 by means of one or more fasteners, not shown, particularly in the assembled configuration of the electromechanical actuator 11. The fastener(s) may be, in particular, bosses, fixing screws, snap-fit ​​fasteners, grooves fitted into notches or a combination of these different fasteners.

[0159] Here and as illustrated in figure 3, the ring 30 is disposed or inserted, in other words is configured to be disposed or inserted, around a part of the housing 17, in particular in the assembled configuration of the electromechanical actuator 11. In this case, the ring 30 is mounted freely to rotate around the housing 17.

[0160] In an alternative, not shown, the ring 30 is disposed or inserted, in other words is configured to be disposed or inserted, around the torque support 21, in particular in the assembled configuration of the electromechanical actuator 11. In this case, the ring 30 is mounted freely to rotate around the torque support 21.

[0161] In another variant, not shown, the ring 30 is disposed or inserted, in other words is configured to be disposed or inserted, on the one hand, around the torque support 21 and, on the other hand, around a part of the housing 17, in particular in the assembled configuration of the electromechanical actuator 11. In such a case, the ring 30 can be mounted freely in rotation, on the one hand, around the torque support 21 and, on the other hand, around the housing 17.

[0162] Advantageously, the electronic control unit 15 can be supplied with electrical energy by means of a power supply cable 18.

[0163] Here and as illustrated in figure 3, the electronic control unit 15 is thus arranged, in other words is integrated, inside the housing 17 of the electromechanical actuator 11.

[0164] Alternatively, not shown, the electronic control unit 15 is located outside the housing 17 of the electromechanical actuator 11 and, in particular, mounted on the box 9 or in the torque support 21.

[0165] Advantageously, the torque support 21 may include at least one button, not shown.

[0166] This button or these buttons can be used to adjust the electromechanical actuator 11 through one or more configuration modes, to pair one or more control units 12, 13 with the electromechanical actuator 11, to reset one or more parameters, which could be, for example, a limit switch position, to reset the paired control unit(s) 12, 13 or to control the movement of the screen 2.

[0167] Advantageously, the torque support 21 may include at least one display device, not shown, so as to allow a visual indication of an operating parameter of the motorized drive device 5.

[0168] Advantageously, the display device includes at least one light source, not shown, in particular a light-emitting diode.

[0169] This or these light sources are mounted on an electronic board of the electronic control unit 15 and, optionally, a transparent or translucent cover and / or a light guide, to allow the passage of the light emitted by the light source or by each of the light sources.

[0170] Advantageously, the output shaft 20 of the electromechanical actuator 11 is disposed inside the winding tube 4 and at least partly outside the housing 17 of the electromechanical actuator 11.

[0171] Here, one end of the output shaft 20 protrudes from the housing 17 of the electromechanical actuator 11, in particular from the second end 17b of the housing 17 opposite the first end 17a.

[0172] Advantageously, the output shaft 20 of the electromechanical actuator 11 is configured to drive a connecting element 22 in rotation. This connecting element 22 is connected to the winding tube 4, in particular in the assembled configuration of the occulting device 3. The connecting element is made in the form of a wheel.

[0173] When the electromechanical actuator 11 is switched on, the electric motor 16 and the reducer 19 drive the output shaft 20 in rotation. In addition, the output shaft 20 of the electromechanical actuator 11 drives the winding tube 4 in rotation via the connecting element 22.

[0174] Thus, the winding tube 4 causes the screen 2 of the occulting device 3 to rotate, so as to open or close the opening 1.

[0175] The occulting device 3 and, more particularly, the motorized drive device 5 further includes an electrical power supply device 26, visible in figure 2. The electromechanical actuator 11 is electrically connected to the electrical power supply device 26.

[0176] The electrical power supply device 26 includes at least one rechargeable battery 24 and at least one photovoltaic panel 25.

[0177] The electrical power supply device 26 is configured to supply, in other words provides, electrical power to the electromechanical actuator 11 and, more particularly, to the electronic control unit 15 and the electric motor 16.

[0178] Thus, the electrical power supply device 26 makes it possible to supply electrical power to the electromechanical actuator 11, without itself being electrically connected to a mains power supply network.

[0179] Here, the photovoltaic panel 25 is electrically connected to the battery 24. The electromechanical actuator 11 is electrically connected to the electrical power supply device 26 and, more particularly, to the battery 24, in particular by means of the electrical power supply cable 18.

[0180] Advantageously, the battery 24 is configured to supply, in other words, provides electrical energy to the electromechanical actuator 11, in particular the electronic control unit 15 and the electric motor 16. In addition, the battery 24 is configured to be supplied, in other words, is supplied with electrical energy by the photovoltaic panel 25. Thus, the recharging of the battery 24 is implemented by solar energy, by means of the photovoltaic panel 25.

[0181] Advantageously, battery 24 can be positioned at the level of box 9 of the blackout device 3.

[0182] Here and as illustrated in figure 2, battery 24 is located outside of box 9.

[0183] Alternatively, not shown, the battery 24 can be arranged inside the casing 9, inside the winding tube 4 while being outside the housing 17, or inside the housing 17, particularly in the assembled configuration of the electromechanical actuator 11. In the latter case, the electromechanical actuator 11 includes the battery 24.

[0184] When the torque support 21 includes a display device, the operating parameter that this display device allows to be viewed is advantageously a state of charge of the battery 24.

[0185] Here, the electromechanical actuator 11 includes the power cable 18 enabling its supply of electrical energy, in particular the power supply of the electronic control unit 15 and the power supply of the electric motor 16, in particular from the battery 24.

[0186] Here and as illustrated in figure 3, the battery 24 is electrically connected directly to the electronic control unit 15, by the power supply cable 18.

[0187] Advantageously, the battery 24 comprises a plurality of energy storage elements 32, in particular electrically connected in series. The energy storage elements 32 of the battery 24 can be, in particular, rechargeable accumulators or rechargeable cells.

[0188] Advantageously, the photovoltaic panel 25 includes at least one photovoltaic cell, not shown, and, more particularly, a plurality of photovoltaic cells.

[0189] Advantageously, the motorized drive device 5, in particular the photovoltaic panel 25 and the electronic control unit 15, includes charging elements configured to charge the battery 24, from the solar energy recovered by the photovoltaic panel 25. In this case, the current flows between the components 15, 24 and 25 through a wired link, not shown, which may be separate from the electrical power supply cable 18.

[0190] Thus, the charging elements configured to charge the battery 24, from solar energy, allow the solar energy recovered by the photovoltaic panel 25 to be converted into electrical energy.

[0191] Alternatively or in addition, the motorized drive device 5, in particular the electromechanical actuator 11, is supplied with electrical energy from a mains power supply network, in particular from the commercial AC network.

[0192] Here, as illustrated in Figure 2, the electronic control unit 15 comprises a single electronic board. Furthermore, the electronic board is configured to control the electric motor 16, to enable the charging of the battery 24, and optionally, to access parameter settings and / or configuration functions of the electromechanical actuator 11, by means of selection and, optionally, display elements, not shown. As mentioned above, the battery charging elements 24 can be arranged on the electronic board.

[0193] Alternatively, and not shown, the electronic control unit 15 comprises a first electronic board and a second electronic board. The first electronic board is configured to control the electric motor 16. Furthermore, the second electronic board is configured to allow charging of the battery 24 and, optionally, access to parameter settings and / or configuration functions of the electromechanical actuator 11, by means of selection and, optionally, display elements, which are not shown. The battery charging elements for the battery 24 may be located on the second electronic board.

[0194] In the case where the electronic control unit 15 comprises a first electronic board and a second electronic board, not shown, the first electronic board of the electronic control unit 15 may be arranged inside the housing 17 of the electromechanical actuator 11. Furthermore, the second electronic board may be arranged inside the torque support 21 of the electromechanical actuator 11. Moreover, the torque support 21 may include a cover, not shown. In addition, the second electronic board may be arranged inside a recess formed between a portion of the torque support 21 and the cover.

[0195] The installation 100 may also include at least one mobile terminal 33. Here, the mobile terminal 33 may be the local control unit 12 and include all or part of its constituent elements.

[0196] Preferably, the mobile terminal 33 is a smart phone, also called a "Smartphone" in English, or a tablet. Here, the mobile terminal 33 includes the second communication module 36, as described previously with reference to the local control unit 12, as well as the selection elements 14 and display 34. This second communication module 36 allows it to exchange, in particular, parameter information with the electromechanical actuator 11, according to the method that will be described below.

[0197] Advantageously, the installation 100 further comprises a sunlight sensor 43, in particular a single sunlight sensor 43 for one façade of the building or for the entire building. In addition, the electronic control unit 15 is configured to control, or command, the electromechanical actuator 11 or, optionally, a plurality of electromechanical actuators 11, based on at least one sunlight value from the sunlight sensor 43. The sunlight sensor 43 is installed inside and / or outside the building, in particular on the façade on which the installation 100 is located.

[0198] Alternatively, the electronic control unit 15 is configured to control, or command, the electromechanical actuator 11, based on at least one value of at least one sunlight condition from the server 28.

[0199] Advantageously, the installation 100 further includes a temperature sensor 44, in particular a single temperature sensor 44 for a building façade or for the building as a whole. In addition, the electronic control unit 15 is configured to control, or command, the electromechanical actuator 11 or, optionally, a plurality of electromechanical actuators 11, based on at least one temperature value from the temperature sensor 44. The temperature sensor 44 is installed inside and / or outside the building, in particular on the façade where the installation 100 is located. For an outside temperature, a weather service can be used, for example, and the temperature information can be obtained using the server 28.

[0200] The light sensor and / or temperature sensor can be integrated into one of the control units 12 of the installation 100. Alternatively, the electronic control unit 15 is configured to control, in other words, command, the electromechanical actuator 11, based on at least one value of at least one temperature and / or light condition from the server 28.

[0201] The installation 100, in particular the local control unit 12, the central control unit 13, the electronic control unit 15, and the motorized drive device 5, comprises all the hardware and / or software elements necessary for implementing the control method of the invention, as described below. These elements may include software modules. A single local control unit 12 or a single central control unit 13 can control several motorized drive devices 5 and, ultimately, control the permeability of several screens 2.

[0202] We now describe, with reference to figures 4 to 9, an embodiment of a method for controlling the motorized drive device 5 for the shading device 3 of the installation 100 for closing, shading or solar protection according to the invention and represented in figures 1 to 3. The method includes the implementation of different iterations of steps S110 to S170 which are described below.

[0203] In a first step S110, a first temperature is measured, estimated, or obtained. This first temperature is advantageously the ambient temperature inside the building. For example, the first temperature is measured using temperature sensor 44. Alternatively, the first temperature can be estimated. Preferably, the value of the first measured, estimated, or obtained temperature is the temperature, or an estimate, of the air temperature in the room where the installation is located.

[0204] In a second step S120, a first level of brightness is measured, estimated, or obtained. This first level of brightness is advantageously the ambient brightness outside the building. For example, the first level of brightness is measured using the brightness sensor 43. Alternatively, the first level of brightness can be estimated. In this case, a meteorological service can be used, for example, and the first level of brightness information can be obtained using the server 28. The first level of brightness can also be obtained by any other means of information or modeling. Preferably, the measured, estimated, or obtained value of the first level of brightness is the brightness or an estimate of the brightness on the facade on which the installation is located, i.e., the brightness incident into the building through the opening 1.

[0205] The first and second steps could be:

[0206] - implemented in the order described above, or

[0207] - implemented in a different order, i.e. by implementing step S120 then step S110, or

[0208] - implemented simultaneously or almost simultaneously.

[0209] Furthermore, either step S110 or S120 can be omitted during an iteration. In this case, the remaining steps of the iteration can be implemented using the result (of the omitted step) obtained during its last execution in a previous iteration.

[0210] In a third step S130, a control setpoint for the motorized drive device 5 is calculated to obtain a solar radiation permeability of the screen defined as a function of the initial temperature and luminosity. This calculation can be performed by:

[0211] - the motorized drive device 5, and / or

[0212] - a local control unit 12, and / or

[0213] - a central control unit 13, and / or

[0214] - a remote server 28.

[0215] In this calculation step, we use the values ​​of the first temperature and the first luminance. Specifically, we input these values ​​into a mathematical rule or function that yields a value for the screen's permeability to solar radiation, representing these values. This mathematical function or rule can be represented by a map, as illustrated in Figures 5 to 7. On these maps, given a value of luminance (in lux) or solar energy (in W / m²), we can determine the values. 2) on the x-axis and a temperature value (in °C) on the y-axis, it is possible to determine a point on the represented surface and find the value of permeability to solar radiation by projecting this point onto the axis of the ridges (as a percentage).

[0216] Preferably, the mathematical function is such that the permeability decreases with both the first temperature and the first luminosity; that is, as the first temperature increases, the permeability decreases, and as the first luminosity increases, the permeability decreases. Put another way, within the domain of definition of the mathematical function: - whatever the first temperature, the permeability is a decreasing function (in the broad sense) of the first luminosity, and

[0217] - regardless of the initial brightness, permeability is a decreasing function (in a broad sense) of the initial temperature.

[0218] Based on the calculated permeability, a control setpoint for the motorized drive device 5 can then be determined. Indeed, the screen 2 has a characteristic that establishes a link between its permeability to solar radiation and the tensile mechanical stress to which it is subjected. Knowing the desired permeability, the mechanical stress that must be delivered by the motorized drive device 5 by pulling on the screen 2 can then be determined. Based on this mechanical torque, the control setpoint for the motorized drive device 5 can thus be determined. In a fourth step, S140, the control setpoint determined in the previous step is applied, and the motorized drive device 5 is thus driven to deliver the required torque. The screen is therefore subjected to a tensile force, configuring it as desired and defined by the mathematical rule based on the initial temperature and luminosity.

[0219] In a fifth step S150, a user performs an action on the installation, resulting in the issuance of a command to the motorized drive device 5 so as to modify the permeability of the screen 2 and achieve a new permeability different from that defined according to a rule based on the first current temperature and the first current luminance. For example, the user performs an action that decreases the tensile stress exerted on the screen 2 in order to decrease the permeability of the screen 2, or the user performs an action that increases the tensile stress exerted on the screen 2 in order to increase the permeability of the screen 2.Once the permeability modification is suitable for the user, they can validate this new configuration and, as a result, request that this new configuration be taken into account, i.e., request a modification of the mathematical rule to take this new permeability into account.

[0220] In a sixth step, S160, the mathematical rule is modified. This modification can take several forms. For example, the mathematical rule can be modified so that the surface or map is translated along the dimension axis to pass through the new operating point defined by the user. Alternatively, the mathematical rule can be modified so that the surface or map is translated along the dimension axis to move closer to the new operating point defined by the user. As an alternative or additional step, the surface or map can be deformed more or less locally to pass through or move closer to the new operating point. In such a case, the edges of the surface or map can remain unchanged.Preferably, despite the modifications described above, the mathematical rule remains such that permeability decreases with both the first temperature and the first brightness, that is, when the first temperature increases, the value of permeability decreases and when the first brightness increases, the value of permeability decreases.

[0221] Thus, in the sixth step S160, the rule is modified so that the modified rule defines, with the first current temperature and the first current brightness, at the time of the modification, a permeability approaching the new permeability or equaling the new permeability.

[0222] Steps S150 and S160 are optional and are only advantageously implemented in certain iterations of the process. Indeed, in the absence of specific user action, steps S150 and S160 are ignored, and the process proceeds to a possible step S170 or loops back to step S110.

[0223] In step S170, the rule is modified according to the season. For example, one rule might be applied during a warm season and a second rule during a cold season. Alternatively, a first rule might be applied in spring, a second rule in summer, a third rule in autumn, and a fourth rule in winter. This modification can be automated by plotting the date of each iteration of the process steps on a calendar. The date might be known from the installation, which includes a clock. Alternatively, the date could be information obtained from an auxiliary system, such as server 28. Finally, the date could be estimated by analyzing variations in brightness measured by the light sensor 43. This step S170 is optional. It can be omitted, and the process can loop back to step S110 without implementing step S170.

[0224] In step S170, the modifications to the rule can be similar to those described with reference to step S 160, i.e., the rule can be modified by translation along the dimension axis and / or the rule can be deformed more locally.

[0225] The control method can implement continuous mapping, that is, mapping represented by a continuous three-dimensional surface within a domain defined by a range of first luminance values ​​and a range of first temperature values. Examples of continuous mapping are illustrated in Figures 5 to 7.

[0226] In these maps of figures 5 to 7, the mathematical rule or function can be of the following form:

[0227] OF(lum, temp) = OFmin-OFmaxx[(lum-lummin)x(temp-tempmin) / ((lummax-lummin)x(tempmax-tempmin))] p

[0228] with :

[0229] - OF(lum, temp): permeability as a function of the first current luminosity and the first current temperature,

[0230] - OFmin: a maximum screen permeability value,

[0231] - OFmax: a minimum screen permeability value,

[0232] - lum: the current value of the first brightness level, - temp: the current value of the first temperature level.

[0233] - lumin: a minimum value for the first brightness level,

[0234] - lummax: a maximum value of the first brightness level,

[0235] - tempmin: a minimum value for the first temperature,

[0236] - tempmax: a maximum value for the first temperature,

[0237] - p: a real number.

[0238] The OFmin and OFmax values ​​are, for example, given by the nature of screen 2 used.

[0239] Figure 5 illustrates, for example, a mathematical rule using the previously mentioned formula with the exponent p equal to 1. We then obtain a map that can be represented by a ruled surface on Figure 5.

[0240] Figure 6 illustrates, for example, a mathematical rule using the previously mentioned formula with the exponent p greater than 1, for example, equal to 2.

[0241] Figure 7 illustrates, for example, a mathematical rule using the previously mentioned formula with the exponent p less than 1, for example 0.5.

[0242] In step S 160 and / or in step S 170, it is possible to change the value of the exponent p in order to change the mathematical rule.

[0243] Regardless of the method of execution and the variant, the map resulting from the mathematical rule or mathematical function can be convex, as illustrated for example in Figure 6.

[0244] Regardless of the method of execution and the variant, the mapping resulting from the mathematical rule or mathematical function can be concave, as illustrated for example in Figure 7.

[0245] More generally, regardless of the initial brightness, the rule defining permeability values ​​as a function of the initial temperature can be concave or convex; in particular, the mapping resulting from the rule defining permeability values ​​as a function of the initial temperature can be concave or convex.

[0246] More generally, regardless of the first temperature, the rule defining permeability values ​​as a function of the first brightness can be concave or convex, in particular the mapping resulting from the rule defining permeability values ​​as a function of the first brightness can be concave or convex.

[0247] As an alternative to the variants illustrated in Figures 5 to 7, in other variants, the mathematical rule or function may exhibit discontinuities. In these other variants, the mathematical rule could be represented by a map showing discontinuities or jumps in value along the axis of the coordinates. Such logics can also be illustrated by tables like those shown in Figures 8 and 9.

[0248] In these other variants, we use different parameters defined below: - Enight: the outside brightness below which we consider it to be night, - Eday: the outside brightness from which we consider it to be day (different from Enight in order to generate a hysteresis condition and limit movements to time intervals close to the screen),

[0249] - Edark: a level of brightness below which the day is considered to be dimly lit.

[0250] - Elight: a level of brightness above which the day is considered to be very bright.

[0251] -Tcold: a temperature (inside the building) below which the risk of discomfort due to heat is considered unlikely in the short term. However, the risk of visual discomfort is possible.

[0252] - Thoth: a temperature (inside the building) above which the risk of discomfort due to heat is considered significant. The risk of visual discomfort is also possible.

[0253] In the two variants illustrated in figures 8 and 9, different permeability values ​​of screen 2 were retained and each of these permeability values ​​was associated with first temperature and first luminosity ranges.

[0254] For example, in the variant illustrated in Figure 8, the following four permeability values ​​were used: 10%, 5%, 3%, and 0.5%. Each of these values ​​is associated with a range of first temperature and first luminosity values.

[0255] For example, in the variant illustrated in Figure 9, the following three permeability values ​​were used: 10%, 5%, and 0.5%. Each of these values ​​is associated with a range of first temperature and first luminosity values.

[0256] In the variants illustrated in Figures 8 and 9, hysteresis is advantageously incorporated to prevent excessive changes in the screen's permeability. Similarly, it is observed that, for example, in the case of strong sunlight, the permeability drops to 0.5% when the initial temperature exceeds Thot. However, the return to a higher permeability only occurs when the initial temperature falls below Tcold. These hysteretic behaviors of the control setpoints are illustrated in Figures 10 to 15, for the logic defined in Figure 8. In each of the domains shown in Figures 11 and 14, two hysteretic behaviors are represented: one with a solid line and one with a dashed line. Indeed, in these domains, several different hysteretic behaviors exist depending on the control setpoint value upon arrival in that domain.

[0257] Assuming the application of one of the variants shown in figures 8 and 9, it is possible, in step S 160 and / or in step S 170, to modify the value of one or any combination of the parameters listed above (Enight, Eday, Edark, Elight, Tcold, Thot).

[0258] Thus, the rule can be defined as:

[0259] - a first brightness threshold (Edark) and a second brightness threshold (Elight) constituting three brightness ranges,

[0260] - a first temperature threshold (Tcold) and a second temperature threshold (Thot) constituting three temperature domains,

[0261] - control setpoints defining constant permeability values, and - (i) hysterical behavior of the control setpoints on at least one brightness domain, preferably on two or three brightness domains, when the temperature varies and / or (ii) hysterical behavior of the control setpoints on at least one temperature domain, preferably on two or three temperature domains, when the brightness varies.

[0262] Preferably, the control instructions defining constant permeability values ​​can be obtained as corresponding to the permeabilities defined by the previously mentioned mathematical function OF(lum, temp). For example, in the case of Figure 8, the constant permeability values ​​could be:

[0263] - OF(Eligh,Thoth) = 0.5%,

[0264] - OF(Eligh, Tcold) = 3%,

[0265] - OF(Edark.Thoth) = 5%,

[0266] - OF(Edark, Tcold) = 10%. For example, in the case of Figure 9, we can have the following constant permeability values:

[0267] - OF(Eligh,Thoth) = 0.5%,

[0268] - OF(Eligh, Tcold) = 5%,

[0269] - OF(Edark.Thoth) = 10%.

[0270] In other words, in the logic of Figures 8 and 9, the previously mentioned mathematical function OF(lum, temp) is discretized and can be represented by portions of horizontal planes representing a permeability that is constant for different ranges of brightness and temperature. The transitions between these plane portions are managed by hysteresis occurring at the temperature and brightness thresholds mentioned earlier and shown in Figures 10 to 15.

[0271] More generally, and independently of any mathematical function of the form mentioned above, the implemented rule can be represented by portions of horizontal planes representing constant permeability for different ranges of light and temperature. The transitions between these plane portions are managed by hysteresis occurring at the temperature and light thresholds mentioned earlier.

[0272] In the execution modes shown in Figures 8 to 15, a limited number of control commands (e.g., 3, 4, 5, or 6) are used, each associated with a given permeability. These commands are sent when specific temperature and light thresholds are crossed. Depending on the number of control commands used, more than two temperature and / or light thresholds can also be used to trigger changes in the control command. Hysteresis behavior is also employed when these thresholds are crossed.

[0273] In the various execution modes and variants described, the first temperature is an indoor temperature. Alternatively, the first temperature could be different. For example, the first temperature could be the difference between an outdoor temperature and an indoor temperature (heating or cooling setpoint).

[0274] In the various implementation modes and variants described, the initial brightness level is an external brightness level. Alternatively, the initial brightness level could be different. For example, the initial brightness level could be the difference between an external brightness level and an internal brightness setpoint for the building.

[0275] Preferably, the control method is implemented under certain conditions. One condition is, for example, the detection, determination, or acquisition of a minimum brightness level, such as Enight or Eday. Below this minimum brightness, the control method may not be implemented. In particular, below this minimum brightness, the screen 2 can be fully rolled up and not obstruct the opening at all. Above this minimum brightness, the control method is advantageously implemented; that is, the screen is fully extended in front of the opening, and its permeability to light radiation is controlled by the motorized drive device 5.

[0276] Preferably, steps S110-S170, in particular the first S110, second S120, third S130 and fourth S140 steps, are iterated:

[0277] - at a first frequency if the following condition is met: (i) solar radiation is incident along one direction or a first set of directions and / or (ii) the intensity of solar radiation is greater than a first threshold and / or (iii) the screen is open, and

[0278] - at a second frequency if the condition is not met,

[0279] the first frequency being greater than the second frequency.

[0280] This allows for a rapid response in case of glare risk, preventing light discomfort for building occupants. Specifically, more frequent sampling (first frequency) of brightness measurements or estimates is taken for high observed brightness values ​​or a particular range of light ray incidence angles when the screen is open. Once the screen is closed (i.e., once the permeability is reduced) to limit glare, sampling can again be performed at the second frequency (nominal iteration frequency of the process steps).

[0281] Throughout this document, for the sake of simplicity and as is often the case in everyday language, the concepts of physical quantity and the intensity value of that physical quantity may sometimes be used interchangeably. For example, the term "first temperature" may be used to refer to a value of that first temperature.

[0282] According to another aspect of the invention, objects of the invention are defined by the following propositions.

[0283] 1. Method for controlling a motorized drive device (5) for a shading device (3) of a closure, shading or solar protection installation (100) comprising a screen (2) that can be rolled up on a winding tube (4), the screen (2) having a permeability to solar radiation dependent on the intensity of a mechanical tension stress applied to the screen (2) by the motorized drive device (5), the motorized drive device (5) comprising an electromechanical actuator (11) intended to be assembled with the rollable screen (2), the control method comprising:

[0284] - a first step (S110) of measuring a first temperature or estimating the first temperature or obtaining the first temperature,

[0285] - a second step (S120) of measuring a first brightness, estimating the first brightness, or obtaining the first brightness,

[0286] - a third step (S130) of calculating a control setpoint for the motorized drive device (5) so as to obtain a permeability defined according to a rule based on the first temperature and the first brightness, and - a fourth step (S140) of applying the control setpoint, the rule defining permeability values ​​decreasing with temperature and decreasing with brightness.

[0287] Control method according to proposal 1, characterized in that the rule is defined by a mapping as a function of the first temperature and the first brightness.

[0288] Control method according to proposal 2, characterized in that the mapping presents discontinuities.

[0289] A control method according to one of propositions 1 to 3, characterized in that, regardless of the first brightness, the rule defining the permeability values ​​as a function of the first temperature is concave, in particular the mapping obtained by the rule defining the permeability values ​​as a function of the first temperature is concave, or in that, regardless of the first brightness, the rule defining the permeability values ​​as a function of the first temperature is convex, in particular the mapping obtained by the rule defining the permeability values ​​as a function of the first temperature is convex.

[0290] A control method according to any one of propositions 1 to 4, characterized in that, for any first temperature, the rule defining the permeability values ​​as a function of the first luminosity is concave, in particular the mapping obtained by the rule defining the permeability values ​​as a function of the first luminosity is concave, or in that, for any first temperature, the rule defining the permeability values ​​as a function of the first luminosity is convex, in particular the mapping obtained by the rule defining the permeability values ​​as a function of the first luminosity is convex. A control method according to any one of propositions 1 to 5, characterized in that the rule is defined by the relation:

[0291] OF(lum, temp) = OFmin-OFmaxx[(lum-lummin)x(temp-tempmin) / ((lummax-lummin)x(tempmax-tempmin))] p

[0292] with :

[0293] - OF(lum, temp): permeability as a function of the first luminosity and the first temperature,

[0294] - OFmin: a maximum screen permeability value,

[0295] - OFmax: a minimum screen permeability value,

[0296] - lum: the current value of the first brightness,

[0297] - temp: the current value of the first temperature,

[0298] - lumin: a minimum value for the first brightness level,

[0299] - lummax: a maximum value of the first brightness level,

[0300] - tempmin: a minimum value for the first temperature,

[0301] - tempmax: a maximum value for the first temperature,

[0302] - p: a real number.

[0303] A control method according to one of propositions 1 to 6, characterized in that the first temperature is:

[0304] - an indoor temperature, or

[0305] - a difference between an outside temperature and an indoor temperature setpoint,

[0306] and / or

[0307] in that the first brightness is:

[0308] - outdoor light, or

[0309] - a difference between an external brightness level and an internal brightness setting.

[0310] A control method according to one of propositions 1 to 7, characterized in that the control method comprises:

[0311] - an action (S150) by a user resulting in the emission of a command to the motorized drive device (5) so as to obtain a new permeability different from that defined according to the rule based on the first current temperature and the first current brightness, and

[0312] - a modification (S160) of the rule so that the modified rule defines with the first current temperature and the first current brightness a permeability approaching the new permeability or equaling the new permeability.

[0313] Control method according to one of proposals 1 to 8, characterized in that the control method includes a modification (S170) of the rule according to the season.

[0314] A control method according to one of propositions 1 to 9, characterized in that the steps, in particular the first, second, third and fourth steps, are iterated:

[0315] - at a first frequency if the solar radiation is incident from a first direction or a first set of directions and / or if the intensity of the solar radiation is greater than a first threshold and / or if the screen is open, and

[0316] - at a second frequency, otherwise,

[0317] the first frequency being greater than the second frequency.

[0318] Control system, in particular control unit (12, 13) of a motorized drive device and / or motorized drive device (5) for a blackout device (3) of a closing, blackout installation (100), the control system comprising hardware and / or software elements (12, 13, 14, 33, 34, 35, 36, 37, 38, 39) implementing the method according to one of Propositions 1 to 10, in particular hardware and / or software elements (14, 33, 34, 35, 36, 37, 38, 39) designed to implement the method according to one of Propositions 1 to 10.

Claims

DEMANDS 1. Method for controlling a motorized drive device (5) for a shading device (3) of a closure, shading or solar protection installation (100) comprising a screen (2) that can be rolled up on a winding tube (4), the screen (2) having a permeability to solar radiation dependent on the intensity of a mechanical tension stress applied to the screen (2) by the motorized drive device (5), the motorized drive device (5) comprising an electromechanical actuator (11) intended to be assembled with the rollable screen (2), the control method comprising: - a first step (S110) of measuring a first temperature, estimating the first temperature, or obtaining the first temperature, - a second step (S120) of measuring a first brightness, estimating the first brightness, or obtaining the first brightness, - a third step (S130) of calculating a control setpoint for the motorized drive device (5) so as to obtain a permeability defined according to a rule based on the first temperature and the first luminosity, and - a fourth step (S140) of applying the control setpoint, the rule defining permeability values ​​decreasing with temperature and decreasing with luminosity, the rule being defined by the relation: OF(lum, temp) = OFmin-OFmaxx[(lum-lummin)x(temp-tempmin) / ((lummax-lummin)x(tempmax-tempmin))] p with : - OF(lum, temp): permeability as a function of the first luminosity and the first temperature, - OFmin: a maximum screen permeability value, - OFmax: a minimum screen permeability value, - lum: the current value of the first brightness, - temp: the current value of the first temperature, - lumin: a minimum value for the first brightness level, - lummax: a maximum value of the first brightness level, - tempmin: a minimum value for the first temperature, - tempmax: a maximum value for the first temperature, - p: a real number, OR, the rule being defined by: - a first brightness threshold (Edark) and a second brightness threshold (Elight) constituting three brightness ranges, and - a first temperature threshold (Tcold) and a second temperature threshold (Thot) constituting three temperature domains, and - control instructions defining constant permeability values, and - (i) hysterical behavior of the control setpoints on at least one brightness domain, preferably on two or three brightness domains, when the temperature varies, and / or (ii) hysterical behavior of the control setpoints on at least one temperature domain, preferably on two or three temperature domains, when the brightness varies.

2. Control method according to the preceding claim, characterized in that the rule is defined by a mapping as a function of the first temperature and the first brightness.

3. Control method according to the preceding claim, characterized in that the mapping presents discontinuities.

4. A control method according to any one of the preceding claims, characterized in that, regardless of the first brightness, the rule defining the permeability values ​​as a function of the first temperature is concave, in particular the mapping obtained by the rule defining the permeability values ​​as a function of the first temperature is concave, or in that, regardless of the first brightness, the rule defining the permeability values ​​as a function of the first temperature is convex, in particular the mapping obtained by the rule defining the permeability values ​​as a function of the first temperature is convex.

5. Control method according to any one of claims 1 to 4, characterized in that, regardless of the first temperature, the rule defining the permeability values ​​as a function of the first brightness is concave, in particular the mapping obtained by the rule defining the permeability values ​​as a function of the first brightness is concave, or in that, regardless of the first temperature, the rule defining the permeability values ​​as a function of the first brightness is convex, in particular the mapping obtained by the rule defining the permeability values ​​as a function of the first brightness is convex.

6. A control method according to any one of the preceding claims, characterized in that the first temperature is: - an indoor temperature, or - a difference between an outside temperature and an indoor temperature setpoint, and / or in that the first brightness is: - outdoor light, or - a difference between an external brightness level and an internal brightness setting.

7. A control method according to any one of the preceding claims, characterized in that the control method comprises: - an action (S150) by a user resulting in the emission of a command to the motorized drive device (5) so as to obtain a new permeability different from that defined according to the rule based on the first current temperature and the first current brightness, and - a modification (S160) of the rule so that the modified rule defines with the first current temperature and the first current brightness a permeability approaching the new permeability or equaling the new permeability.

8. Control method according to any one of the preceding claims, characterized in that the control method comprises a modification (S170) of the rule according to the season.

9. A control method according to any one of the preceding claims, characterized in that the steps, in particular the first, second, third and fourth steps, are iterated: - at a first frequency if the solar radiation is incident from a first direction or a first set of directions and / or if the intensity of the solar radiation is greater than a first threshold and / or if the screen is open, and - at a second frequency, otherwise, the first frequency being greater than the second frequency.

10. Control system, in particular control unit (12, 13) of a motorized drive device and / or motorized drive device (5) for a blackout device (3) of a closing, blackout installation (100), the control system comprising hardware and / or software elements (12, 13, 14, 33, 34, 35, 36, 37, 38, 39) implementing the method according to any one of claims 1 to 10, in particular hardware elements (14, 33, 34, 35, 36, 37, 38, 39) designed to implement the method according to any one of claims 1 to 10.

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