Method for detecting a set time

Abstract

The invention relates to a method for managing a home automation setup (100) comprising at least one motor-driven sun shade (3), the method comprising: a step of measuring the inside temperature (T); a detection step (ED) in which a given time (lr) and a given temperature (Tr) are detected, the given time (lr) corresponding to a change from a decrease phase (Po) to an increase phase (Pc) of the inside temperature; a validation step (EV) in which the given time (lr) is defined as a reference time (B) according to a comparison between a duration of the increase phase (Pc) and a subsequent validation duration (Dp); a step of determining a target position for the sun shade (3) according to the reference time (B); a step of controlling (EC) the sun shade (3) so that it moves towards assuming the target position.

Description

[0001] DESCRIPTION

[0002] TITLE: Method for detecting a fixed moment

[0003] The invention relates to the field of managing the interior thermal comfort of a building and more particularly to a method for managing a home automation installation and a terminal for a home automation installation.

[0004] A building for domestic or professional use has a set of active elements, such as air conditioning or heating devices, or passive elements, such as solar protection such as roller shutters or blinds, whose behavior, in particular through automatic control, has a strong influence on the evolution of thermal comfort, i.e. the interior temperature of the building, and interior visual comfort.

[0005] Several phenomena can influence the indoor temperature, including: external climatic conditions, including the irradiance of external objects, through their impact on the external envelope of the building, cause the indoor temperature to change with greater or lesser inertia. The latter varies in particular depending on the construction materials, the building's insulation, the orientation of the openings, and the geometry of the building; air conditioning and heating systems can also change the indoor temperature of the building, in particular by compensating, upwards or downwards, for energy inputs from other energy sources; activities carried out inside the building, such as the operation of an oven or a fireplace, or the presence of a large number of people, etc., significantly change the indoor temperature of the building.

[0006] Among these phenomena, irradiance and more precisely solar radiation transmitted through the glazing of a building opening is one of the predominant components of an increase in interior temperature.

[0007] Thus, controlling solar protection, i.e., controlling the opening or closing of the solar protection, interacting directly with the exterior has a direct and significant impact on thermal and visual comfort. In other words, good management of solar protection can save several degrees on the interior temperature.

[0008] Control or management of solar protection is a modification of the positions of the solar protection over time between an extended or unrolled position in which it stops at least part of the solar radiation, and a folded or rolled position in which it stops a less significant part of the solar radiation. Manual control or management is not optimal from an energy point of view because it is difficult for a building occupant to know exactly what the ideal position of the solar protection is at any given moment, and when to open or close it. In addition, if the building is unoccupied, movements are impossible, unlike automatic control which continuously ensures the positioning of the protections. It is therefore important to be able to manage automatic control optimally, in particular to limit the increase in the interior temperature.

[0009] Solutions are known that implement automated management or control of solar protection to limit the increase in indoor temperature using a set of sensors, for example outdoor light sensors, and / or a twilight clock linked to a home automation system. However, these solutions require the use of expensive sensors and / or a connection to a home automation system and are complex to implement.

[0010] The invention aims to remedy all or part of the aforementioned drawbacks by proposing a method which makes it possible to trigger automatic control of solar protections by limiting the number of measurements and sensors required, in particular by limiting the sensors to a temperature sensor and a time counter.

[0011] The invention relates to a method for managing a home automation installation of a building comprising at least one motorized solar protection, a unit for managing a position taken by the solar protection over time, and at least one device for measuring an interior temperature of the building, the method being implemented by the management unit and comprising the following steps:

[0012] A measuring step in which the indoor temperature is measured;

[0013] A detection step in which a marked time and a marked temperature are detected, the marked time corresponding to a transition from a phase of decreasing the interior temperature to a phase of increasing the interior temperature, and the marked temperature corresponding to the value of the interior temperature at the marked time;

[0014] A validation step in which the identified instant is defined as a reference instant based on a result of a comparison between a duration of the internal temperature growth phase and at least one subsequent validation duration;

[0015] A step of determining a target position of the sun protection, this step taking into account the reference time;

[0016] A control step (EC) of the position taken by the solar protection towards the target position It is determined in the remainder of the description that the term “day” corresponds to a phase of a calendar day in which thermal inputs associated with solar radiation are possible, while the term “night” corresponds to a phase of the calendar day in which thermal inputs associated with solar radiation are not possible.

[0017] The management unit of the method according to the invention seeks to modify a position of the solar protections in particular to protect against a significant rise in the interior temperature linked to solar radiation transmitted through a glazing of an opening of the building. In other words, the management unit must control the position taken by the solar protections during the day, and not during the night. More precisely, the management unit must control the position taken by the solar protections when the thermal inputs associated with solar radiation are possible. Thus, the management unit must have information concerning a reference instant from which it will control the control of the solar protections during the day or at least determine the command(s) to be provided to the solar protections.The reference time therefore corresponds to the start of a phase in which thermal inputs associated with solar radiation are possible, i.e. the start of the day. In this way, it is possible to avoid untimely orders, such as closing the solar protections, outside a period starting at the reference time. In other words, at night, the management unit does not modify the position of the solar protections.

[0018] The object of the invention is to determine said reference time on the sole information of the interior temperature. Indeed, in order for the home automation installation to be as simple as possible, it does not determine the reference time on the basis of information given by a clock, internal to the management unit or by connection to a home automation center, which would indicate the day and the calendar time.

[0019] The reference time may vary during the calendar year. The method according to the invention must therefore adapt during the calendar year. The method according to the invention must also be free from any threshold value for indoor temperature, a threshold value which would be difficult to determine because it varies depending on the installations, geographical locations, weather conditions, etc.

[0020] The process therefore determines a transition from night to day based solely on the indoor temperature information.

[0021] To do this, during the detection step, the management unit determines a referenced instant associated with a local minimum of the interior temperature. The referenced interior temperature is the referenced interior temperature at the referenced instant. The referenced instant corresponds to a transition from a phase of decreasing the interior temperature to a phase of increasing the interior temperature. In other words, the referenced instant corresponds to the instant for which a minimum of the interior temperature is determined. The decreasing phase corresponds to a period during which the interior temperature remains greater than or equal to the referenced temperature.

[0022] The growth phase corresponds to a period during which the internal temperature remains higher than or equal to the target temperature.

[0023] More precisely, the detection step determines the instant identified by comparing an indoor temperature value to a previous indoor temperature value. However, the indoor temperatures recorded in a memory of the management unit may in reality be indoor temperatures averaged over a given period (30 min, 1 h, etc.) so as to filter out noise phenomena. Similarly, an indoor temperature may be considered higher or lower than the previous indoor temperature if it is higher (or lower) than the indoor temperature plus a defined noise.

[0024] When this marked instant is detected, it must be validated for a subsequent validation duration in order to be defined as a reference instant. The subsequent validation duration is a time threshold value. In other words, the marked instant must be followed by a phase of increase in the internal temperature for at least the subsequent validation duration to become the reference instant. The marked temperature must therefore be the minimum temperature for at least the subsequent validation duration for the marked instant to be defined as the reference instant.

[0025] During the validation step, the management unit compares the duration of the indoor temperature increase phase with the subsequent validation duration. If the duration of the indoor temperature increase phase is greater than or equal to the subsequent validation duration, the identified time is defined as the reference time. Otherwise, the identified time is not ultimately validated as the reference time.

[0026] Thus, the process detects a sustained rise in the indoor temperature that follows a phase of decrease in this temperature to a minimum and associates it with the start of the day. Indeed, classically, at night, that is to say when there is no thermal input, the indoor temperature will decrease then during the day, when there is again thermal input, the indoor temperature will increase. The reference time therefore corresponds to the moment when the thermal inputs associated with solar radiation heat the building again, that is to say at the start of the day or at the transition from night to day.

[0027] The method also comprises a step of determining a target position as a function of the reference time, then a control step.

[0028] Thus, a calibration of the control step can be carried out on the basis of this reference instant.

[0029] It should be noted that the detection and validation steps can be carried out concomitantly. The invention may also have one or more of the following characteristics taken alone or in combination.

[0030] According to one embodiment, the subsequent validation duration is between 0 and 12 hours, preferably between 0 and 3 hours, for example 1 hour.

[0031] According to one embodiment, the reference time is determined based on a previous reference time.

[0032] Throughout the year, the length of the day varies slightly from one calendar day to the next. Generally, the length of the day varies by a few minutes. Thus, it is likely that the reference time of the current calendar day is approximately 24 hours apart from the previous reference time, that is, the reference time of the previous day.

[0033] Determining the reference time based on the previous reference time helps limit errors in detecting the start of the day.

[0034] According to one embodiment, the identified instant is defined as a reference instant based on a result of a comparison between the identified instant and a period of time called a confirmation period starting at the previous reference instant increased by a duration of a day.

[0035] According to one embodiment, the duration of the day is equal to 24 hours.

[0036] According to one embodiment, the confirmation period is between 00:00 and 15:00, preferably between 6:00 and 12:00, for example 10:00.

[0037] The confirmation period corresponds to a period during which the identified instant must be defined as the reference instant, i.e. the period during which the detection and / or validation step takes place.

[0038] According to one embodiment, the confirmation period begins after the day duration.

[0039] In other words, the previous reference time increased by the length of day gives a start of the confirmation period.

[0040] According to one embodiment, if no reference time is validated in the confirmation period, then the previous reference time plus a forcing duration is defined as the reference time.

[0041] Thus, when the indoor temperature drops over several consecutive days, no reference time can be detected for the current day. The reference time for the current day is therefore determined in relation to the previous reference time plus the forcing duration. This is therefore a theoretical reference time. The reference time does not need to be particularly precise. In which case, if no new reference time can be detected by analyzing the indoor temperature, it is absolutely possible to recalculate this reference time based on the previous reference time(s).

[0042] According to one embodiment, the forcing duration is equal to the length of the day. According to one embodiment, the forcing duration is equal to 24 hours.

[0043] According to one embodiment, the step of determining a target position and / or the control step is carried out after the reference time, or the previous reference time, increased by a control duration.

[0044] The control duration corresponds to the time between the detection of the reference instant or the previous reference instant and the performance of the control step and / or determination of a target position. In other words, the control step of the current day can be performed a few hours after the validation step of the identified instant of the current day, or, for example, start a few hours after the validation step of the identified instant the day before. According to one embodiment, the control duration is equal to 24 hours.

[0045] According to one embodiment, the step of determining a target position and / or the control step is carried out during an activation period.

[0046] The activation period corresponds to the duration during which the control step and / or the step of determining a target position is active. In other words, the management unit can change the position of the solar protections during the activation period. The activation period can therefore correspond approximately to the phase during which thermal inputs associated with solar radiation are possible.

[0047] According to one embodiment, the activation period is between 6 a.m. and 3 p.m., preferably between 10 a.m. and 1 p.m., for example 12 p.m.

[0048] According to one embodiment, the detection step is carried out after the reference time increased by a waiting time.

[0049] In order to avoid detection errors, the detection step is inhibited during the waiting time. In other words, the detection step is not performed during the waiting time following the validation of the reference time. The detection step is therefore performed again after the reference time plus the waiting time.

[0050] According to one embodiment, the waiting time is between 6 hours and 15 hours, preferably between 9 hours and 13 hours, for example 10 hours.

[0051] According to one embodiment, during the validation step, the identified instant is defined as a reference instant based on a result of a comparison between a duration of the phase of decrease in the interior temperature and at least one previous validation duration.

[0052] In order to avoid detection errors, the validation step can also include a condition on the duration of the internal temperature decrease phase.

[0053] The previous validation duration is a time threshold value.

[0054] According to one embodiment, the previous validation duration is between Oh and 12h, preferably between Oh and 3h, for example 1h. According to one embodiment, the management method is such that the identified instant is defined as a reference instant based on a result of a comparison between: a sum of the duration of the phase of decrease of the interior temperature and the duration of the phase of increase of the interior temperature, on the one hand and a total validation duration, on the other hand.

[0055] In order to avoid detection errors, the validation step can also include a condition on the sum of the duration of the decrease phase and the increase phase of the internal temperature.

[0056] According to one embodiment, the total validation duration is between 0 and 12 hours, preferably between 6 hours and 12 hours, for example 10 hours.

[0057] According to one embodiment, if the identified instant is not defined as the reference instant during the validation step, then the method restarts the detection step.

[0058] Thus, the detection step and the validation step follow one another until the reference instant is detected.

[0059] The invention also relates to a terminal of a home automation installation implementing the method according to the invention.

[0060] According to one embodiment, the terminal comprises a temperature measuring device and the detection of the identified instant and the validation of the reference instant are carried out on the basis of temperature information, this being solely derived from internal temperature measurements by the temperature measuring device of the terminal.

[0061] The invention also relates to a method for managing a home automation installation of a building comprising at least one motorized solar protection, a control terminal, a unit for managing a position taken by the solar protection over time, and at least one device for measuring an interior temperature of the building, the method being implemented by the management unit and comprising, from a reference instant, one or two maximum commands for closing the at least one solar protection over a period of 24 hours when an overheating dynamic is detected, the overheating dynamic and / or the reference instant being determined solely on interior temperature measurements.

[0062] The invention also relates to a control terminal implementing such a method.

[0063] The invention will be better understood, thanks to the following description, which relates to several embodiments according to the present invention, given as non-limiting examples and explained with reference to the appended schematic drawings, in which:

[0064] [FIG. 1] is a schematic representation of a building comprising a home automation installation implementing a method according to the invention; [FIG. 2] is a schematic cross-section of a solar protection of the home automation installation of figure 1;

[0065] [FIG. 3] is a schematic perspective view of the solar protection illustrated in Figure 2; [FIG. 4] is a graph illustrating a change in an interior temperature and a quantity of solar radiation transmitted through a glazing over two days;

[0066] [FIG. 5] is a graph illustrating a method according to the invention according to a first embodiment;

[0067] [Fig. 6] is a graph illustrating the method according to a second embodiment.

[0068] The solution proposed here relates to automatic management of the position of a solar protection 3 over time, making it possible to act on the thermal comfort of an area of ​​a building 1.

[0069] As illustrated in Figure 1, a building 1 comprises a home automation installation 100 comprising motorized solar protection 3. The home automation installation 100 comprises a management unit 102 of a position taken by the solar protection 3 over time.

[0070] The installation also comprises at least one device 104 for measuring the interior temperature T of the building, in particular of a room of the building 1 associated with the solar protection 3, that is to say in a room of the building 1 comprising at least one opening 108 which may be masked or not or partially by the solar protection 3. The measuring device 104 also comprises a time counter and a memory in which interior temperature T data can be stored at substantially regular intervals over a predefined period, for example over 72 hours.

[0071] Other parameters associated with the interior comfort of building 1 can also be measured, in particular a degree of brightness, a degree of hygrometry or a composite quantity defined as a function of the quantities previously cited, or a prediction of these parameters.

[0072] According to the embodiment presented, the installation 100 comprises an active device 106 for providing thermal inputs inside the building 1, such as for example heating, air conditioning or a reversible heat pump. In one operating mode of the installation 100, the active device operates independently of the management unit 102. In an alternative operating mode, the management unit 102 and the active device 106 share a certain number of components, for example the device 104 for measuring the interior temperature may be common to the active device and the management unit.

[0073] The solar protection 3 is installed outside or inside the building, in particular near an opening 108 of the building. An opening 108 is for example a window, a French window or a glass door. The solar protection is advantageously an interior or exterior blind made of fabric or provided with adjustable slats. The present invention, however, applies to all types of solar protection.

[0074] As shown in Figures 2 and 3, the sun protection 3 comprises a canvas 2 fixed by one of its ends to a winding tube 4, arranged inside a box 9 and driven by an electromechanical actuator 5, and by the other end to a weighted bar 8. The sun protection 3, and more particularly the canvas 2 is movable between a rolled up or folded position, in particular high, in which the canvas 2 uncovers the opening 108 at the level of which the sun protection is positioned, and an unrolled or deployed position, in particular low, in which the canvas 2 covers the opening and thus at least partially blocks the solar radiation through the opening 108. The deployment of the canvas 2 can be guided by slides 6.

[0075] In a known manner, the electromechanical actuator 5 is fixed to a supporting structure 9 linked to the building 1 and inserted into the winding tube 4 to drive the latter in rotation so as to unwind or wind the canvas 2.

[0076] In the case of a slatted blind type sun protection, the individual slats of the blind are preferably suspended via cords intended to be wound onto the roller tube or unwound from the roller tube so as to fold or unfold the screen.

[0077] The electromechanical actuator 5 is controlled by a local control unit 12 which may be provided with an antenna 12a. The local control unit 12 takes the form of a wall switch, or a remote control.

[0078] The installation 100 may also comprise a central control unit 13 which may be provided with an antenna 13a, which may act as a gateway between the installation 100 and an Internet network external to the installation. The management unit 102 may be a local control unit 12 or a central control unit 13. Preferably, the central control unit 13 of the installation 100 implementing the method according to the invention does not communicate with an external network.

[0079] The electromechanical actuator 5 is configured to execute movement commands, in particular deployment or retraction, of the solar protections 3, the commands being able to be issued, in particular, by the local control unit 12 or the central control unit 13, which are part of the installation 100.

[0080] The electromechanical actuator 5 comprises an electric motor 10 and an electronic control unit 15 capable of operating the electric motor 10 of the electromechanical actuator 5, and, in particular, enabling the electric motor 10 to be supplied with electrical energy.

[0081] The electronic control unit 15 comprises a communication module, in particular for receiving control orders, the control orders being issued by the local control unit 12 or the central control unit 13, for example by means of radio control orders.

[0082] A remote control 14, which may be a type of local control unit, and provided with a control keyboard, which comprises selection and possibly display means, furthermore allows a user to intervene on the electromechanical actuator 5 and / or the local control unit 12 and / or central control unit 13.

[0083] The installation may also optionally include a weather station, not shown, located outside the building, including, in particular, one or more sensors that can be configured to determine, for example, an outside temperature, brightness or even wind speed.

[0084] The electromechanical actuator 5 may comprise a connection to a mains power source or may comprise a stand-alone electrical power supply device, such as for example a photovoltaic panel and / or an electrical energy storage device.

[0085] The installation 100, in particular the management unit 102, and the electromechanical actuator 5 comprise all the hardware and / or software means for implementing the management method which is the subject of the invention.

[0086] The management unit 102 comprises a processing unit arranged to contain and execute a computer program product comprising portions of program code for executing the steps of a method for managing the home automation installation 100 according to the invention. In particular, the management unit 102 is capable of implementing automatic management of a positioning of the solar protection 3, when an automatic piloting mode is previously selected. The automatic management of the solar protection 3 notably comprises deployment control orders, i.e. opening, or retraction, i.e. closing of the solar protection transmitted from the management unit 102 to the electromechanical actuator 5 in accordance with the selected automatic piloting mode.

[0087] The management unit 102 comprises a memory in which the control mode to be implemented and a set of programs associated with different selectable control modes can be stored.

[0088] The management unit 102 is also arranged to receive data from the indoor temperature measuring device 104. The management unit 102 can also receive status or position data provided by the electromechanical actuator 5, relating to the solar protection 3. In this regard, the management unit 102 comprises a communication module.

[0089] The management unit 102 also comprises a user interface. The user interface is arranged to allow possible programming of the management unit 102. The management unit 102 further comprises a display element for providing a value of the interior temperature T and / or a reference of the control mode following the implementation of the management method described later.

[0090] The management unit 102 also optionally comprises illuminance measuring elements, for example a luxmeter or means of communication with such illuminance measuring elements.

[0091] Optionally, the communication module of the management unit 102 is also adapted to receive information relating to weather forecasts, for example via a connection to an Internet network via the central control unit. Optionally, the management unit 102 can use weather predictions of the outside temperature and solar radiation over 24 hours. The solar radiation can be deduced from an illuminance measurement via a lux meter.

[0092] In the case where the management unit includes illuminance measuring elements, or can receive information relating to weather forecasts, this information is not taken into account in the implementation of the method according to the invention.

[0093] The management method according to the invention is described below in relation to figures 4, 5 and 6.

[0094] In the remainder of the description, the term "day" corresponds to a phase of a calendar day in which thermal inputs associated with solar radiation a are possible, while the term "night" corresponds to a phase of the calendar day in which thermal inputs associated with solar radiation a are not possible.

[0095] The subject of the method is a method for managing the home automation installation 100 as a function of a reference instant B determined solely as a function of values ​​of the interior temperature T measured by the measuring device 104 and the measurement instants.

[0096] More particularly, the management unit 102 of the method according to the invention seeks to modify the position of the solar protections 3 in particular to close them to protect against a significant rise in the interior temperature T linked to the solar radiation a transmitted through the glazing of the opening 108 of the building 1, in particular during hot periods. In other words, the management unit 102 must control the position taken by the solar protections 3 during the day, and not during the night when closing the solar protections would have no effect on the insulation of the interior of the building with respect to the solar radiation, or even have a negative effect by preventing air flows. More precisely, the management unit must control the position taken by the solar protections 3 when the thermal contributions associated with the solar radiation a are possible. The management unit must also avoid false detection situations.

[0097] The management unit 102 must therefore have information concerning a reference instant from which it will determine a situation requiring a command and carry out the command of the solar protections. The reference instant therefore corresponds to the start of a phase in which thermal inputs associated with solar radiation a are possible, that is to say the start of the day. In this way it is possible to avoid untimely orders, for example closing the solar protections 3, outside the reference instant. In other words, at night, the management unit 102 does not and must not modify the position of the solar protections.

[0098] The reference time may vary during the calendar year. The method according to the invention must therefore adapt to the course of the calendar year.

[0099] To make the 100% home automation installation as simple as possible, the reference time is determined based solely on the indoor temperature T.

[0100] More precisely, the temperature information is solely derived from a succession of indoor temperature measurements spaced apart by a sampling time interval, the latter preferably being between 0 h and 1 h, for example 15 minutes.

[0101] The reference instant B corresponds to the beginning of the day or the transition from night to day. However, in the absence of a clock that can give the day and the calendar time, the reference instant B is not the beginning of the calendar day. It corresponds to a transition from a decreasing phase Pc of the interior temperature T to an increasing phase Pc. More precisely, the method detects a lasting rise in the interior temperature T that follows a lasting decreasing phase and associates it with the beginning of the day. Indeed, at night, that is to say when there is no thermal input a, the interior temperature T will decrease then during the day, when there is again thermal input a, the interior temperature T will increase.

[0102] Figure 4 illustrates a time lag related to an inertia of the building 1 between an increase A in solar radiation a, corresponding to the start of the calendar day, and an increase in the interior temperature T, corresponding to the reference instant B detected by the method according to the invention. In other words, Figure 4 illustrates the difference between the start of the day as detected by the method and called the reference instant B, and the start of the calendar day A.

[0103] More precisely, the management unit 102 implements a step of measuring the interior temperature T. Then, it carries out a detection step ED in which it determines a time marked l r associated with an interior temperature identified Tr. The instant identified l r corresponds to the transition from a phase of decrease PD of the internal temperature T to a phase of increase Pc of the internal temperature T. In other words, the instant identified l rcorresponds to the instant at which a minimum of the interior temperature T is detected.

[0104] When this moment spotted the r is detected, it must be validated during an EV validation step. If the detected instant r is followed by a growth phase Pc of the internal temperature T for a duration threshold, called the subsequent validation duration D P , the instant marked lr is defined as the reference instant B. The temperature marked T r must therefore be the minimum temperature for at least the duration of the subsequent validation Dp so that the instant identified l r be defined as the reference time B.

[0105] A first embodiment of the method will be described with reference to Figure 5.

[0106] In this embodiment, the management unit 102 implements a measurement step in which the indoor temperature T is measured.

[0107] Then the management unit 102 implements the detection step ED in which the instant of passage from a decreasing phase Pc of the interior temperature T to an increasing phase Pc of the interior temperature T is marked as the instant identified l r The instant marked lr is associated with the temperature marked Tr, corresponding to the value of the interior temperature T at the instant marked lr.

[0108] As soon as the moment spotted is detected, r , begins the validation step EV. During the validation step, the management unit 102 compares the duration of the growth phase Pc of the interior temperature T to the subsequent validation duration Dp.

[0109] If the duration of the growth phase Pc of the internal temperature T is greater than or equal to the subsequent validation duration Dp, the instant identified l r is defined as the reference time B.

[0110] If the duration of the growth phase Pc of the internal temperature T is less than the subsequent validation duration Dp, as can be seen in Figure 5, zone (a), the instant marked lr is not defined as the reference instant B. The method then restarts the detection and validation step by taking into account the internal temperature values ​​measured prior to the restart, as can be seen in Figure 5, zone (b).

[0111] If when a new detection step ED begins, the interior temperature T is increasing, the start time of the detection step ED is indicated as the time marked l rand a new validation step begins immediately. In other words, in the embodiment shown in Figure 5, in the absence of a constraint on the decay phase, the start time of the detection step ED, indicated as the time marked lr, will be validated as the reference time if the duration of the growth phase is greater than or equal to the subsequent validation duration.

[0112] In the first embodiment, there is a sequence of ED detection and EV validation steps.

[0113] According to one embodiment, the subsequent validation duration Dp is at least equal to 1 h. The management unit 102 also implements a step of determining a target position that the solar protection should take, this step taking into account the reference time. The management unit 102 also implements a control step EC in which it modifies the position of the solar protections 3 according to the target position determined in the previous step.

[0114] The steps of determining a target position and EC control are carried out after the reference time B or after the previous reference time increased by a control duration D c .

[0115] According to one embodiment, the control duration D c is equal to 24h.

[0116] This allows, in the absence of determination of a new reference time during a new day, to be able to carry out the implementation of the target position determination and control steps on the basis of a previous reference time.

[0117] The step of determining a target position remains active from the reference time for an activation period D a , this is to limit the resources dedicated to calculating this target position. According to one embodiment, the activation period is equal to at most 12 hours. This makes it possible to avoid implementing this step during night periods in which solar radiation is unlikely to be present. The activation period is not fixed. For example, the activation period D aends at the end of a phase of sustained decrease in the internal temperature or at the time of validation of a time marked lr. In other words, the step of determining a target position can be carried out in parallel with a detection step ED or a validation step EV. The step of determining a target position, or the activation period D a , begins after the reference time B or after the previous reference time B increased by the command duration D c until a new reference time is validated. If no reference time is found, the step of determining a target position remains active. The control step takes place when a suitable target position is determined.

[0118] A second embodiment of the method will be described with reference to Figure 6.

[0119] In this embodiment, the management unit 102 implements a measurement step in which the indoor temperature T is measured.

[0120] Then the management unit 102 implements the detection step ED in which the instant of passage from a decrease phase PD of the interior temperature T to an increase phase Pc of the interior temperature T is marked as the instant marked lr. The instant marked l r is associated with the temperature marked T r , corresponding to the value of the interior temperature T at the instant marked l r .

[0121] As soon as the moment spotted is detected, r , begins the EV validation step. During the validation step, the management unit 102 compares:

[0122] - the duration of the growth phase Pc from the internal temperature T to the subsequent validation duration Dp,

[0123] - the duration of the decrease phase PD of the internal temperature T to a previous validation duration, - a sum of the duration of the decrease phase Pc of the internal temperature T and the duration of the increase phase Pc of the internal temperature T, on the one hand to a total validation duration, on the other hand.

[0124] According to one embodiment, the subsequent validation duration Dp is equal to 1 hour.

[0125] According to one embodiment, the prior validation duration is equal to 1 hour.

[0126] According to one embodiment, the total validation time is equal to 10 hours.

[0127] In other words, if the duration of the growth phase Pc of the internal temperature T is greater than or equal to the subsequent validation duration Dp, and the duration of the decrease phase PD of the internal temperature T is greater than or equal to the previous validation duration, and the sum of the duration of the decrease phase PD and the duration of the growth phase Pc of the internal temperature T is greater than or equal to the total validation duration, then the instant identified l r is defined as the reference time B.

[0128] In order to avoid a detection error, constraints are imposed for carrying out the validation step EV. In particular, the validation step EV must be carried out more specifically, on the one hand after the previous reference time B increased by a duration of day Dj, and on the other hand during a confirmation period Dev. The duration of day Dj therefore indicates the starting point of the confirmation period Dev.

[0129] According to one embodiment, the Dev confirmation period is equal to 10 hours.

[0130] According to one embodiment, the duration of day Dj is equal to 24 hours.

[0131] If the EV validation step does not allow a reference instant B to be detected as can be seen in Figure 6, zone (c), then the previous reference instant increased by a forcing duration Df is defined as the reference instant B.

[0132] According to one embodiment, the forcing duration Df is equal to 24 hours.

[0133] A new detection step ED begins after a detected reference time B increased by a waiting time Dan. When no reference time B is detected, as is the case in zone (c) of Figure 6, a new detection step ED begins after the end of the confirmation period Dev increased by the waiting time Datt.

[0134] In the second embodiment, the management unit 102 also implements a step of determining a target position that the sun protection should take, this step taking into account the reference time. The management unit 102 also implements a control step EC in which it modifies the position of the sun protections 3 according to the target position determined in the previous step. The steps of determining a target position and of controlling EC are carried out after the reference time B or after the previous reference time B increased by a control duration D c .

[0135] According to one embodiment, the control duration D c is equal to 24 hours. This allows, in the absence of determining a new reference time during a new day, to be able to carry out the implementation of the target position determination and control steps on the basis of a previous reference time.

[0136] The step of determining a target position remains active from the reference time for an activation period D a , this is to limit the resources dedicated to calculating this target position. The activation period D a is fixed. The order duration D c therefore indicates the starting point of the activation period D a .

[0137] According to one embodiment, the activation period D a is equal to 12h.

[0138] During the activation period D a , the management unit 102 can modify the position of the solar protections so as in particular to maintain an interior temperature T as low as possible.

[0139] In particular, an overheating dynamic is detected when one or more indoor temperature values ​​or variations in the indoor temperature are detected above predefined thresholds, such as a limit of a preprogrammed comfort temperature range, an overheating speed, a fixed or adaptable overheating threshold depending on the change in the indoor temperature from the reference time.

[0140] Of course, the invention is not limited to the embodiments described and shown in the attached figures. Modifications remain possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims

CLAIMS 1. Method for managing a home automation installation (100) of a building (1) comprising at least one motorized solar protection (3), a management unit (102) for a position taken by the solar protection (3) over time, and at least one device (104) for measuring an interior temperature of the building (1), the method being implemented by the management unit (102) and comprising the following steps: A measurement step in which the indoor temperature (T) is measured; A detection step (ED) in which a detected instant (l r ) and a marked temperature (Tr) are detected, the marked instant (l r ) corresponding to a transition from a decreasing phase (PD) of the internal temperature to a growing phase (Pc) of the internal temperature, and the temperature identified (T r ) corresponding to the value of the interior temperature (T) at the instant identified (lr); A validation step (EV) in which the identified instant (lr) is defined as a reference instant (B) based on a result of a comparison between a duration of the growth phase (Pc) of the internal temperature (T) and at least one subsequent validation duration (Dp); A step of determining a target position of the sun protection (3), this step taking into account the reference time (B); A control step (EC) of the position taken by the sun protection (3) towards the target position.

2. Management method according to claim 1, in which the reference instant (B) is determined as a function of a previous reference instant.

3. Management method according to claim 2, in which the identified instant (l r) is defined as a reference instant (B) based on the result of a comparison between the identified instant and a period of time called the confirmation period (Dev) starting at the previous reference instant plus a duration of days (Dj).

4. Management method according to claim 3, in which if no reference time (B) is validated in the confirmation period (Dev), then the previous reference time increased by a forcing duration (Dt) is defined as the reference time (B).

5. Management method according to any one of claims 2 to 4, in which the step of determining a target position and / or the control step is carried out after the reference time (B), or the previous reference time, increased by a control duration (D c ).

6. Management method according to any one of the preceding claims, in which the step of determining a target position and / or the control step is carried out during an activation period (D a ).

7. Management method according to any one of the preceding claims, in which the detection step (ED) is carried out after the reference time (B) increased by a waiting time (Datt).

8. Management method according to any one of the preceding claims, in which during the validation step (EV), the identified instant (lr) is defined as a reference instant (B) as a function of a result of a comparison between a duration of the decrease phase (PD) of the interior temperature (T) and at least one previous validation duration.

9. Management method according to any one of the preceding claims, in which the identified instant (l r) is defined as a reference instant (B) based on a result of a comparison between: a sum of the duration of the decrease phase (PD) of the interior temperature (T) and the duration of the increase phase (Pc) of the interior temperature (T), on the one hand and a total validation duration, on the other hand.

10. Management method according to any one of the preceding claims, in which if the identified instant (l r ) is not defined as the reference time (B) during the validation step, then the method restarts the detection step (ED).

11. Terminal of a home automation installation (100) implementing a method according to any one of the preceding claims.

12. Terminal of a home automation installation (100) according to the preceding claim, comprising a device (104) for measuring a temperature and the detection of the identified instant and the validation of the reference instant are carried out on the basis of temperature information, this being solely derived from measurements of the interior temperature (T) by the device (104) for measuring a temperature of the terminal.

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