EP3578893B1 - Method for controlling doors for natural ventilation during the summer - Google Patents

Description

The present invention relates to the field of home automation. The invention relates more particularly to a method allowing optimized control of openings for natural ventilation of an area of a building in order to avoid hot discomfort, for example during a summer period.

Natural ventilation is the most basic way of renewing the air in a building, natural ventilation allowing, among other advantages, to regulate the temperature of a building, or of a specific area of the building. Natural ventilation does not require any fan or motorized element to be installed. Air moves through the wind pressure differences between building facades and through the density difference between comparatively warmer or cooler air. It is the thermal draft or the chimney effect.

Air circulation is therefore completely natural in the building, or in an area of the building. Natural ventilation then makes it possible to cool a building, or an area of the building, when the outside air is cooler than the air inside the building, or on the contrary to heat the building, or an area, in the opposite case.

Natural ventilation can be used to cool a building as a whole, or only one or more areas of the building. A zone of a building can correspond to one or more rooms of the building. It is thus possible to define, in a building for residential use, a so-called “living rooms” area comprising for example the living room and the office and / or a so-called “night” area comprising the bedrooms. A zone of a building can more generally correspond to any grouping of rooms defined by a user of the building, the grouping of rooms being able to benefit from global natural ventilation independently, or not, of the building.

Natural ventilation can be based on the presence of ventilation grilles. The air flow is then minimal, making it possible to guarantee renewal of the air in the building, but without noticeable effect on the thermal regulation of the building.

Natural ventilation can be greatly improved by opening the openings, such as windows, and / or blackouts, such as shutters, of the building. The

It should be noted that natural ventilation is non-noisy, requires no electricity consumption and does not require maintenance. On the other hand, natural ventilation is dependent on the weather, more particularly the outside temperature, when the objective is to regulate the inside temperature of a building.

The summer period, ie a period during which the outside temperatures can be high, particularly during the day, is a period during which the management of natural ventilation for a building can be problematic. Indeed, natural ventilation of a building when the outside temperature is too high can lead to a situation of discomfort (called “hot discomfort”) for an occupant of the building, the inside temperature then also becoming too high. Likewise, if a cooler period of the day can be used to cool a building by natural ventilation, typically at night, it is not easy to ensure that the interior temperature does not become too cool, leading then to another discomfort situation (called "cold discomfort").

The document FR 3015708 A1 describes a method for predicting the behavior of a quantity representative of the interior comfort of a building such as a temperature, a degree of luminosity or a degree of hygrometry

It is therefore necessary to provide a solution allowing control of the openings and / or blackouts for natural ventilation of a building, or of a building area, in order to avoid situations of discomfort, particularly in summer.

• déterminer une température de confort minimale (T_conf-inf, T_conf-inf-tol),
• déterminer un modèle d'évolution de la température intérieure du bâtiment, ou de la zone du bâtiment, lorsque la pluralité d'ouvrants est fermée,
• déterminer un moment d'occupation du bâtiment, ou de la zone du bâtiment, par un utilisateur,

le procédé comprenant les étapes itératives de :

• déterminer une mesure de la température intérieure (T_int) du bâtiment, ou de la zone du bâtiment, au moyen dudit au moins un dispositif de mesure de la température connecté au dispositif électronique de contrôle, et,

si la température intérieure mesurée est inférieure à la température de confort minimale, alors :

• déterminer en fonction du modèle d'évolution de la température intérieure et de la température intérieure mesurée, une température intérieure prévisionnelle (T_int-prev) au moment d'occupation du bâtiment, ou de la zone du bâtiment, et,
• si cette température intérieure prévisionnelle est inférieure à la température de confort minimale, alors commander la fermeture de la pluralité des ouvrants du bâtiment, ou de la zone du bâtiment,

si la température intérieure mesurée est supérieure à la température de confort minimale, alors :

• commander l'ouverture de la pluralité des ouvrants du bâtiment, ou de la zone du bâtiment.

The invention relates to a method of controlling a plurality of openings for natural ventilation of at least one zone of a building, the method being executed by an electronic control device, the electronic control device being adapted to control the opening and / or closing of the plurality of openings of the building, or of the building area, the electronic control device being connected to at least one device for measuring an interior temperature of the building, or of the area of the building, the process comprising the preliminary steps of:

• determine a minimum comfort temperature (T _conf-inf , T _conf-inf-tol ),
• determine a model of the evolution of the interior temperature of the building, or of the building zone, when the plurality of openings is closed,
• determine a time of occupancy of the building, or of the building area, by a user,

the method comprising the iterative steps of:

• determining a measurement of the interior temperature (T _int ) of the building, or of the building zone, by means of said at least one temperature measurement device connected to the electronic control device, and,

if the measured interior temperature is lower than the minimum comfort temperature, then:

• determine according to the model of the evolution of the interior temperature and the measured interior temperature, a forecast interior temperature (T _int-prev ) at the time of occupation of the building, or of the building zone, and,
• if this forecast interior temperature is lower than the minimum comfort temperature, then order the closing of the plurality of openings of the building, or of the building area,

if the measured interior temperature is higher than the minimum comfort temperature, then:

• control the opening of the plurality of openings of the building, or of the building area.

• si l'information dite « mémorisation d'ouverture » est égale à la première valeur, alors, suite à la commande d'ouverture de la pluralité des ouvrants du bâtiment, ou de la zone du bâtiment, enregistrer comme nouvelle valeur de l'information dite « mémorisation d'ouverture », la deuxième valeur en association avec un délai de validité, ou,
• si l'information dite « mémorisation d'ouverture » est égale à la deuxième valeur, alors, ignorer l'étape de commande d'ouverture des ouvrants,

la valeur de l'information dite « mémorisation d'ouverture » étant remplacée par la première valeur à l'expiration du délai de validité.According to a complementary embodiment of the invention, the electronic control device being adapted to record a piece of information called “opening memorization” which can take a first value or a second value, the method comprises the additional iterative steps, if the temperature measured interior is greater than the minimum comfort temperature, by:

• if the information known as "opening memorization" is equal to the first value, then, following the opening command of the plurality of openings of the building, or of the building zone, record as new value of the information called “opening memorization”, the second value in association with a validity period, or,
• if the information called "opening memorization" is equal to the second value, then ignore the step of controlling the opening of the doors,

the value of the information known as “opening memorization” being replaced by the first value at the expiration of the validity period.

• déterminer, en plus de la température de confort minimale, une température de confort médiane (T_conf-med) et une température de confort maximale (T_conf-sup),
• déterminer, en fonction de la température extérieure prévisionnelle maximale, de la température de confort minimale, de la température de confort médiane et de la température de confort maximale, un mode d'exécution du procédé, le premier mode d'exécution étant sélectionné si la température extérieure est inférieure à une température définie en fonction de la température de confort minimale et de la température de confort médiane,

et, si la température intérieure mesurée est inférieure à la température de confort minimale, alors :

• si le dispositif électronique de contrôle est dans le premier mode d'exécution, alors :
  • o fermer les ouvrants sans exécuter les étapes itératives,
• si non, exécuter les étapes itératives.

According to a complementary embodiment of the invention, the electronic control device being adapted to be moreover connected to at least one weather forecast server, the server being adapted to provide a maximum forecast outside temperature (Text-prev-max) , the method comprising at least maximum forecast exterior (Text-prev-max), the method comprising at least a first and a second execution modes, the method comprises the additional preliminary steps of:

• determine, in addition to the minimum comfort temperature, a median comfort temperature (T _conf-med ) and a maximum comfort temperature (T _conf-sup ),
• determine, as a function of the maximum predicted outside temperature, of the minimum comfort temperature, of the median comfort temperature and of the maximum comfort temperature, an execution mode of the method, the first execution mode being selected if the outside temperature is lower than a temperature defined according to the minimum comfort temperature and the median comfort temperature,

and, if the measured interior temperature is lower than the minimum comfort temperature, then:

• if the electronic control device is in the first mode of execution, then:
  • o close the doors without performing the iterative steps,
• if not, perform the iterative steps.

• recevoir des données d'occupation du bâtiment, ou de la zone du bâtiment, en provenance du dispositif de détection de l'occupation du bâtiment, ou de la zone du bâtiment,
• déterminer à partir des données reçues, un modèle d'occupation du bâtiment, ou de la zone du bâtiment, au moyen d'un algorithme d'apprentissage par renforcement,

le moment d'occupation du bâtiment par un utilisateur étant déterminé en fonction du modèle d'occupation du bâtiment ou de la zone du bâtiment.According to a complementary embodiment of the invention, the electronic control device being connected to a device for detecting an occupancy of the building, or of the building area, the method comprises the additional preliminary steps of:

• receive building occupancy data, or building area, from the building occupancy detection device, or from the building area,
• determine from the data received, an occupancy model of the building, or of the building area, by means of a reinforcement learning algorithm,

the time of occupancy of the building by a user being determined as a function of the occupancy model of the building or of the building area.

According to a complementary embodiment of the invention, the electronic control device being suitable for controlling the opening and / or closing of a plurality of blinds of the building, or of the building area, the steps of the method comprising a command to open and / or close the doors allow at the same time an opening and / or closing control of the blackout.

The invention also relates to an electronic control device being configured to control a plurality of openings of a building, or of a building area, the electronic control device being configured to execute the steps of a method for controlling the windows. openings as described in this document.

The invention also relates to a computer program comprising instructions for implementing, by a processor of an electronic device, a method for controlling openings and / or blackouts of a building for summer comfort described. in this document when the computer program is executed by the processor.

The invention also relates to a recording medium, readable by an electronic device, on which said computer program is stored.

The Fig. 1 schematically shows a building comprising a home automation system allowing control of the openings and / or blackouts of the building or of a building area according to one embodiment of the invention,

the Fig. 2 represents a flowchart of a method for controlling openings and / or blackouts of a building or of a zone of a building for summer comfort according to one embodiment of the invention,

the Fig. 3 schematically represents the hardware architecture of an electronic device suitable for implementing a method for controlling openings of a building or of a zone of a building for summer comfort according to one embodiment of the invention.

The Fig. 1 schematically represents a building 100 comprising a home automation system allowing control of the openings 102, 103, 104 and 105 of the building 100 according to one embodiment of the invention.

The building 100, typically a dwelling, comprises a plurality of openings such as the opening 102, 103, 104, 105, 106 and 107. An opening, like the opening 102, 103, 104 and 105, is any device that can take a position. open or closed, the open position making it possible to create an opening between the interior of the building 100 and the exterior. This opening allows the circulation of an air flow. The opening elements 102, 103, 104 and 105 are typically windows, for example tilt-and-turn windows. Some of these windows may be roof windows. Blackouts, such as shutters, can be associated with openings 102, 103, 104 and 105. According to one embodiment of the invention, the blackouts can be roller shutters with pivoting or orientable slats. The opening elements 102, 103, 104 and 105, and possibly the associated blackouts, are integrated in a home automation system allowing remote control of their opening and closing. According to one embodiment of the invention, the opening and closing of the openings and blinds are synchronized. Thus, an opening control by the home automation system of an opening, such as a window, can at the same time control the opening, possibly partial, of an associated blackout, such as a rolling shutter, for example by orienting the slats. of said shutter. The home automation system typically comprises a control device 110. The control device 110 can be connected, either wired or by wireless technology, to the openings 102, 103, 104 and 105 in order to control - or pilot - their opening. and closing. The control device 110 can be connected to a device 111 for measuring the interior temperature of the building 100 and / or a device 112 for measuring the outside temperature. The temperature measuring devices 111 and 112 can be of the same nature, the device 111 being characterized by its positioning inside the building 100 while the device 112 is positioned outside the building 100. The monitoring device control 10 can be connected to a device 113 for detecting an occupation of the building 100 or of an area of the building 100. The device 113 for detecting the occupation of the building 100, or of an area of the building 100, is typically a presence sensor. The control device 110 can be connected to a communication network, for example to the Internet network 115 by any means. The control device 110 can thus be connected, via the Internet, to a weather forecast server 120. The opening of the openings 102, 103, 104 or 105 makes it possible to obtain natural ventilation of the building 100, or of a zone of the building 100. For example, in the case where the temperature of the outside air is colder than the temperature of the air inside the building 100, or of a zone of the building 100, for example the room 101 of the building 100, the opening of the openings 102 and / or 104 makes it possible to renew the air of the room 101 with outside air, and therefore to cool said room 101.

The controller 110 can connect to the weather forecast server 120 in order to receive data corresponding to the weather forecast. In particular, the control device 110 can receive a information on the expected maximum outdoor temperature (“T _ext-max-prev ”) within a predetermined time window, for example 24 or 48 hours.

The control device 110 can, thanks to the information collected via the presence sensor 113, and / or via other detection devices (not shown) of the occupation of the building 100 or of an area of the building 10, determine a occupancy model by inhabitants of building 100 or of an area of building 100. The occupancy model of building 100, or of an area of building 100, can be constructed from data received from presence sensors, such as the presence sensor 113, by means of a learning algorithm by reinforcement. According to one embodiment of the invention, an occupancy model of the building 100, or of an area of the building 100, is defined by a user of the home automation system during parameterization. A forecast building occupancy model makes it possible to define, for a given time slot, whether an occupant is present in the building. The occupancy model can be refined with smaller time slots. The occupancy model can be refined zone by zone or else room by room in building 100. Thus, the forecast occupancy model of a room such as a bedroom is not the same as that of a room such as a room. stay. For example, different occupancy forecast models can be defined for areas of the building grouping together the so-called "day" rooms (eg living room, dining room, kitchen, etc.) or else so-called "night" rooms. (eg bedrooms).

The control device 110 can determine, according to the measurements of the temperature measuring devices 111 and / or 112, and the state of the openings 102, 103, 104 and 105, or even information on the occupancy of the building, or of a building zone, a model of the evolution of the internal temperature of the building 100, or of a zone of the building 100. The term internal temperature of the building 100 can be understood to mean the temperature measured by a device for measuring the temperature. predefined temperature located inside the building 100. By internal temperature of the building 100, or of a zone of the building 100, one can understand a weighting of temperature measurements carried out by a plurality of temperature measuring devices located in different rooms building 100, possibly in the same zone of building 100. This weighting can be adapted according to predefined time slots in order to follow a real or forecast occupancy of building 100. Typically, the d control device can determine a model of the evolution of the interior temperature of building 100 when the openings of building 100 are closed, i.e. when natural ventilation is blocked. This model can be determined by the control device 110 from measurements collected by the various measuring devices or connected sensors. This model can also be predefined, the control device 110 selecting a predefined model from among a plurality of predefined models according to the characteristics of the building 100 (geographical location, characteristics of the insulation, orientation, individual house or apartment, surface area, etc.) .

• une température dite température de confort inférieure (ou minimale) « T_conf-inf », cette température correspondant à la température minimale que l'utilisateur est prêt à accepter à l'intérieur du bâtiment 100 ; en dessous de cette température minimale « T_conf-inf » (éventuellement corrigée par une tolérance comme décrit ci-après), l'utilisateur est en situation d'inconfort froid,
• une température dite température de confort médiane « T_conf-med », cette température correspondant à la température maximale que l'utilisateur est prêt à accepter à l'intérieur du bâtiment 100 ; au-dessus de cette température maximale « T_conf-med », l'utilisateur est en situation d'inconfort chaud,
• une température dite température de confort supérieure « T_conf-sup », cette température correspondant à une température au-delà de laquelle l'utilisateur du système domotique considère être en situation d'inconfort chaud extrême.

The control device 110 comprises means of interaction with a user of the home automation system, such as a parameter setting interface. This interface can take the form of a dedicated application downloaded and installed on a tablet or smartphone of a user of the home automation system. The configuration interface allows a user of the home automation system to define the following parameters:

• a temperature referred to as the lower (or minimum) comfort temperature "T _conf-inf ", this temperature corresponding to the minimum temperature that the user is ready to accept inside the building 100; below this minimum temperature "T _conf-inf " (possibly corrected by a tolerance as described below), the user is in a situation of cold discomfort,
• a temperature called the median comfort temperature “T _conf-med ”, this temperature corresponding to the maximum temperature that the user is ready to accept inside the building 100; above this maximum temperature "T _conf-med ", the user is in a situation of hot discomfort,
• a temperature called the higher comfort temperature “T _conf-sup ”, this temperature corresponding to a temperature beyond which the user of the home automation system considers to be in a situation of extreme hot discomfort.

The method described below, implemented by the home automation system and more particularly by the control device 110, aims to provide control of the opening and closing of the openings 102, 103, 104 and 105 of the building 100 in order to to guarantee, via natural ventilation of the building, an interior temperature of the building 100 remaining within a range defined by the minimum comfort temperature (possibly corrected as explained below) and the median comfort temperature. This process is particularly suitable for a summer period, a summer period during which the outside temperatures during the day may exceed the median comfort temperature, or even higher, and during which the outside temperatures at night can drop below the minimum comfort temperature.

According to one embodiment of the invention, the control device 110 allows the user of the home automation system to define a tolerance parameter “tol” making it possible to define a tolerance of the user on the lower comfort temperature “T _{conf -inf} ”defined. The control device 110 can then determine a corrected lower comfort temperature “T _conf-inf-tol ”, this corrected lower comfort temperature being equal to the lower comfort temperature “T _conf-inf ” reduced by the value of the parameter “ tol ”user-defined. If “tol” is chosen equal to zero, then the temperatures “T _conf-inf ” and “T _conf-inf-tol ” are equal.

The Fig. 2 represents a flowchart of a method 200 for controlling openings of a building, for example the building 100, for summer comfort according to one embodiment of the invention. The method 200 is typically implemented by a home automation system allowing control of the openings of a building. The method 200 is for example implemented by the control device 110 of a home automation system as illustrated in the Fig. 1 . According to the embodiment of the invention, the method 200 described below is suitable for controlling openings of a building or of a zone of a building. Likewise, the piloting of openings can include the piloting of associated blinds, whether by combined piloting of the openings and the blinds, or by separate piloting of the openings and the blinds. In the latter case, each blackout and / or opening is controlled individually, or in groups, by the home automation system.

Step 201 corresponds to an initialization of the home automation system. During this step, the control device 110 can be switched on, and measuring devices such as devices 111 and 112, the openings 102, 103, 104 and 105 and / or the sensor 113 are connected to the control device 110 .

Following the initialization step 201, in a step 202, the control device 110 can be configured by a user. This parameter setting step can include entering the parameters described above, ie a lower comfort temperature "T _conf-inf ", a median comfort temperature "T _conf-med ", a maximum comfort temperature "T _{conf -sup} ”and a tolerance parameter“ tol ”making it possible to define a corrected minimum comfort temperature“ T _conf-inf-tol ”.

In a following step 203, the control device 110 receives data corresponding to weather forecasts. The reception of these data can follow the sending by the control device 110 of a request, for example to a server such as the weather forecast server 120 illustrated in Fig. 1 . The data can include in particular a forecast maximum outside temperature “T _ext-max-prev ” in a predetermined time window, for example the next 24 or 48 hours.

In a step 204, the control device 110 determines an operating mode of the method 200.

According to one embodiment of the invention, the method 200 comprises four operating modes, these operating modes being defined as below.

First operating mode (mode 1):

This operating mode of the method 200 is implemented when the predicted maximum outdoor temperature “T _ext-max-prev ” is lower than the average of the corrected lower comfort temperature “T _conf-inf-tol ” and of the temperature of median comfort "T _conf-med ", that is to say: $${\mathrm{T}}_{\mathrm{ext-max-prev}}<\left({\mathrm{T}}_{\mathrm{conf-inf-tol}}+{\mathrm{T}}_{\mathrm{conf-med}}\right)/2$$

Second operating mode (mode 2):

This operating mode of the method 200 is implemented when the predicted maximum outdoor temperature “T _ext-max-prev ” is greater than the previously defined value of the average of the corrected lower comfort temperature “T _conf-inf-tol ” and the median comfort temperature "T _conf-med " but lower than the average of the median comfort temperature "T _conf-med " and the maximum comfort temperature "T _conf-sup ", that is say: $$\left({\mathrm{T}}_{\mathrm{conf-inf-tol}}+{\mathrm{T}}_{\mathrm{conf-med}}\right)/2<{\mathrm{T}}_{\mathrm{ext-max-prev}}<\left({\mathrm{T}}_{\mathrm{conf-med}}+{\mathrm{T}}_{\mathrm{conf-sup}}\right)/2$$

In this second operating mode, the control device 100 sets the value of the “tol” parameter to zero, independently of the value of “tol” chosen by a user. In other words, in this operating mode, “T _conf-inf ” is equal to “T _conf-inf-tol ”.

Third operating mode (mode 3):

This operating mode of the method 200 is implemented when the predicted maximum outdoor temperature “T _ext-max-prev ” is greater than the average of the median comfort temperature “T _conf-med ” and of the maximum comfort temperature “ T _conf-sup ”, that is: $$\left({\mathrm{T}}_{\mathrm{conf-med}}+{\mathrm{T}}_{\mathrm{conf-sup}}\right)/2<{\mathrm{T}}_{\mathrm{ext-max-prev}}$$

In this third operating mode, the control device 100 sets the value of the “tol” parameter to the value defined by a user during the parameterization step 202. In other words, in this operating mode, “T _{conf-inf -tol} ”is equal to the lower comfort temperature“ T _conf-inf ”reduced by the tolerance value“ tol ”defined by a user of the home automation system.

Fourth operating mode (mode 4):

This operating mode of the method 200 is implemented when the predicted maximum outside temperature “T _ext-max-prev ” indicates a hot period to come. A scorching period is defined as a period for which the maximum predicted outside temperature is higher than the upper comfort temperature for a plurality of time windows to come. Typically, a scorching period is defined when the predicted maximum outside temperature exceeds the upper comfort temperature, and this over the horizon of several days. For example, the fourth operating mode is selected by the control device 110 when the predicted maximum outside temperature is supposed to exceed the upper comfort temperature during the next two, three or four days.

Once the operating mode has been defined, the control device 110 goes to a step 205. In this step 205, the control device determines whether the operating mode, determined during the previous step 204, is the fourth mode (mode 4 ). If so, the control device 100 goes to step 206. If not, the control device 110 goes to step 209.

In step 206, the method is adapted to a scorching period. In this case, any opportunity to refresh the building is taken advantage of. That is to say that as soon as the measured outside temperature “T _ext ” is lower than the inside temperature of the building, then the control device 110 controls the opening of the doors in order to cool the building. Otherwise, the doors are closed in order to preserve the freshness of the building. Thus, if the interior temperature of the building is lower than the exterior temperature (“T _int <T _ext ”), the control device 110 controls in a step 207 the closing of the opening elements. Otherwise, in a step 208, the control device 110 controls, in a step 208, the opening of the openings.

avec:

• T_{ext-corrigée}(t) : valeur de la température extérieure corrigée à un moment « t », utilisée en lieu et place de T_ext dans le procédé 200 selon ce mode de réalisation complémentaire,
• T_ext(t) : température extérieure mesurée à un moment « t » par le dispositif de mesure de la température extérieure 112,
• T_ext-prev(t) : température extérieure prévisionnelle au moment « t », issue par exemple du serveur de prévisions météorologiques 120,
• min(x, y) : fonction renvoyant la valeur minimale entre les deux paramètres « x » et « y ».

According to one embodiment of the invention, the outside temperature T _ext can be corrected by means of a forecast outside temperature T _ext-prev for a given moment coming from a weather forecast server. In fact, depending on the location of the external temperature measuring device 112, the measurement of T _ext may be subject to influences (direct exposure to the sun, rain, wind, etc.) making the measurement erroneous. In this case, it is possible, at a given moment "t" to choose a corrected value of the outside temperature T _{ext-corrected} like this: $${\mathrm{T}}_{\mathrm{ext-corrected}}\left(\mathrm{t}\right)=\min \left({\mathrm{T}}_{\mathrm{ext}}\left(\mathrm{t}\right),{\mathrm{T}}_{\mathrm{ext-prev}}\left(\mathrm{t}\right)\right),$$

with:

• T _{ext-corrected} (t): value of the corrected outside temperature at a time “t”, used instead of T _ext in the method 200 according to this complementary embodiment,
• T _ext (t): outside temperature measured at a time “t” by the outside temperature measuring device 112,
• T _ext-prev (t): forecast outdoor temperature at time “t”, for example from the weather forecast server 120,
• min (x, y): function returning the minimum value between the two parameters “x” and “y”.

In step 209, the operating mode is different from mode 4. In this step, the control device determines whether the interior temperature “T _int ” of the building, for example measured by means of the device 111, is higher than the temperature. median comfort “T _conf-med ” defined by a user (“T _int > T _conf-med ”). If so, this means that any occupants of the building are in a hot discomfort position, the control device 110 then goes to step 206 previously described in order to open the doors if the outside temperature is cooler than the inside temperature. of the building. If not, the control device 110 goes to a step 210.

In a step 210, the control device 110 determines whether the interior temperature of the building “T _int ” is lower than the corrected lower comfort temperature “T _conf-inf-tol ”. As a reminder, the corrected lower comfort temperature "T _conf-inf-tol " is equal to the lower comfort temperature "T _conf-inf " in the second operating mode, and reduced (corrected) by the value of the tolerance parameter “tol” in the third operating mode.

If the temperature "T _int " is lower than the corrected lower comfort temperature, any occupants of the building are in a situation of cold discomfort, the control device 110 goes to a step 211. Otherwise, the control device 110 proceeds to a step 216.

In step 211, the possible occupants of the building are in a situation of cold discomfort. The control device 110 determines whether the operating mode of the method 200 is the first operating mode (mode 1, determined during step 204). If so, this means that the forecast outside temperature is relatively cool, the control device 110 therefore controls the closing of the openings in a step 215 in order to maintain comfort in the building, or the building zone concerned.

Otherwise, in a step 212, the control device 110 determines, as a function of the model of change in the interior temperature of the building and of the measured interior temperature “T _int ”, a forecast interior temperature “T _int-prev »At the time of occupancy of the building, or of the building zone concerned. In other words, the control device 110 determines whether, depending on the current interior temperature of the building and the pattern of change in the interior temperature of the building when the doors are closed, at a time defined by the return of occupants in the building, the forecast interior temperature will be greater than or equal to the corrected lower comfort temperature. The control device 110 is thus suitable for, starting from a measured interior temperature lower than the lower comfort temperature, that is to say from a potential situation of cold discomfort, and knowing a moment from which occupants will be present in the building or building area, determine whether closing the openings ensures that the interior temperature will have risen sufficiently for the interior temperature of the building, or of the building area, when the occupants return to be greater than or equal to the corrected lower comfort temperature. The control device 110 therefore makes it possible to accept a transient situation in the building, possibly when the latter is potentially unoccupied, with an interior temperature "T _int " lower than the corrected lower comfort temperature "T _conf-inf-tol " in order to "To store cool" while ensuring that the internal temperature "T _int " is greater than or equal to the corrected lower comfort temperature "T _conf-inf-tol " when an occupant returns to the building. It is thus possible to “over-cool” the building, or the building area, during a period when it is unoccupied in order to delay the temperature rise inside it as well as possible if the forecast outside temperature is higher than a temperature defined according to the comfort criteria of a user of the system. Thus, if the control device 110 determines that the predicted interior temperature “Tint-prev” at the time of occupancy of the building - and in a situation with closed doors - cannot be higher than the corrected lower comfort temperature, then the device control 110 controls the closing of the openings in a step 213. Otherwise, the openings can be left in their current position, and the control device 110, in a step 214, does nothing concerning the opening or closing openings. Thus, in this step 212, the device 110 ensures that the openings are properly closed within a period allowing the interior temperature of the building to rise sufficiently to avoid cold discomfort for the occupants upon their return.

In step 216, the interior temperature “T _int ” is greater than the corrected lower comfort temperature “T _conf-inf-tol ”. The method 200 however guarantees that the opening of the leaves can be carried out at least once in a predefined period of time, for example 24 hours. This ensures that the cooling potential of the building by natural ventilation is used at least once during the day, even if the interior temperature "T _int " is in the comfort range (i.e. lower than the median comfort temperature "T _conf-med " and higher than the corrected lower comfort temperature "T _conf-inf-tol ").

• si l'information dite « mémorisation d'ouverture » est égale à la première valeur, alors le dispositif de contrôle 110 pilote l'ouverture des ouvrants dans une étape 217 et enregistre comme nouvelle valeur de l'information dite « mémorisation d'ouverture », la deuxième valeur en association avec un délai de validité, ou,
• si l'information dite « mémorisation d'ouverture » est égale à la deuxième valeur, alors, le dispositif de contrôle 110 passe à une étape 218 (et ignore l'étape 217 de commande d'ouverture des ouvrants).

For this, the control device 110 is suitable for recording a piece of information called “opening memorization” which can take a first value or a second value. In step 216:

• if the information called “opening memorization” is equal to the first value, then the control device 110 controls the opening of the leaves in a step 217 and records as a new value of the information called “opening memorization” , the second value in association with a validity period, or,
• if the information known as “opening memorization” is equal to the second value, then the control device 110 goes to a step 218 (and ignores the step 217 for controlling the opening of the openings).

The control device 110 is adapted to replace the value of the information known as “opening memorization” by the first value at the expiration of the validity period. This ensures that the doors can be opened at least once during the validity period when the interior temperature is within the comfort range.

The present process 200 is repeated periodically. Thus, following steps 207, 208, 213, 214, 215, 217 or 218, the method 200 is repeated from step 204 or 205. This repetition can be scheduled according to a predefined period. This repetition can be triggered by a predefined variation of the interior temperature “T _int ” and / or the exterior temperature “T _ext ”. Step 203, as well as the next step 204, can be carried out periodically over a 24 hour cycle. Steps 205 and following are then repeated during this 24 hour period.

According to an alternative embodiment of the invention, the control device 110 does not have meteorological forecast data but has a building occupancy model and a model of the evolution of the interior temperature of the building when the doors are closed. Here again, the control device 110 executes the present method 200 using as the value of “T _ext-max-prev ” a value of the outside temperature “T _ext ” determined by a device for measuring the outside temperature, for example the external temperature. device 112. The method 200 is on the other hand executed in the first or the second operating mode only, the third and the fourth operating mode not being used. The operating mode is determined by using a value of the measured outside temperature “T _ext ” averaged over a sliding period, for example 24 hours.

The Fig. 3 schematically represents the hardware architecture of an electronic device 300 suitable for implementing a method 200 for controlling openings of a building for summer comfort according to one embodiment of the invention. The electronic device 300 is for example the control device 110 illustrated in the Fig. 1 .

Thus, according to one embodiment of the invention, the electronic device 300 comprises, connected by a communication bus: a processor or CPU (“Central Processing Unit” in English) 301; a MEM 302 of RAM (“Random Access Memory”) and / or ROM (“Read Only Memory”) type, a NET 303 network module, an STCK 304 storage module of internal storage type and possibly a plurality of modules 305 to 30N for implementing the functionalities of the electronic device 300. For example, the module 305 can be a module for measuring a temperature or else a presence sensor. A module 30N can be a module for controlling a home automation equipment connected to the electronic device 300, for example one of the openings 102, 103, 104 or 105.

The STCK 304 storage module can be of the HDD (“Hard Disk Drive”) or SSD (“Solid-State Drive”) type, or of the external storage media drive type, such as a card reader. SD (“Secure Digital”). The processor CPU 301 can store data, or information, in the memory MEM 302 or in the storage module STCK 304. The processor CPU 301 can read data stored in the memory MEM 302 or in the storage module STCK 304. These data may correspond to configuration parameters, instructions, to weather forecast information received by the electronic device 300, to a parameter defined by a user of the home automation system, or to any other data previously described. The NET network module 303 allows the connection of the electronic device 300 to a local network and / or the Internet 115. The electronic device 300 can therefore exchange messages with for example a server 120 via the NET network module 303. The electronic device 300 can access to a storage or a remote memory in order to find and / or record any data previously described as data corresponding to meteorological forecasts, occupancy forecasts of a building or a model of the evolution of an interior temperature of a building.

The processor CPU 301 is capable of executing instructions loaded into the memory MEM 302, for example from the storage module STCK 304 or via the network module NET 303. When the electronic device 300 is powered on, the processor CPU 301 is capable of reading from memory MEM 302 instructions and executing them. These instructions form a computer program causing the implementation, by the processor CPU 301, of all or part of the methods and steps described above, particularly the method described in Fig. 2 . Thus, all or part of the methods and steps described above can be implemented in software form by executing a set of instructions by a programmable machine, such as a DSP (“Digital Signal Processor”) or a microcontroller. . All or part of the methods and steps described here can also be implemented in hardware form by a machine or a dedicated component, such as an FPGA ("Field-Programmable Gate Array ”) or an ASIC (“ Application-Specific Integrated Circuit ”). The functions of the electronic device 300 can be integrated into an existing electronic device by updating software, that is to say for example by updating the firmware of the electronic device.

The electronic device 300 can be all or part of a control device for a home automation system.

The opening and / or blackout can be any device suitable for ventilation of a building or of a zone of a building, for example a ventilation chimney.

According to a complementary embodiment of the invention, certain openings and / or blackouts are suitable for mechanical ventilation and may for example include a mechanized ventilation system.

Claims (8)

1. Method (200) for controlling a plurality of opening members (102, 103, 104, 105) for natural ventilation of at least one region of a building (100), the method being executed by an electronic control device (110, 300), the electronic control device being adapted to command the opening and/or the closing of the plurality of opening members of the building, or of the region of the building, the electronic control device being connected to at least one device (111) for measuring an interior temperature of the building, or of the region of the building, the method comprising the prior steps of:

   - determining (202) a minimum comfort temperature (T_conf-inf, T_conf-inf-tol),

   - determining (202) an evolution model of the interior temperature of the building, or of the region of the building, when the plurality of opening members is closed,

   - determining (202) a moment of occupation of the building, or of the region of the building, by a user,

   the method comprising the iterative steps of:

   - determining a measurement of the interior temperature (T_int) of the building, or of the region of the building, by means of said at least one temperature measurement device (111) connected to the electronic control device, and,

   if the interior temperature measured is below the minimum comfort temperature (210), then:

   - determining (212), as a function of the evolution model of the interior temperature and of the interior temperature measured, a forecast interior temperature (T_int-prev) at the moment of occupation of the building, or of the region of the building, and,

   - if this forecast interior temperature is below the minimum comfort temperature, then commanding (213) the closing of the plurality of the opening members of the building, or of the region of the building,

   if the interior temperature measured is above the minimum comfort temperature, then:

   - commanding (217) the opening of the plurality of the opening members of the building, or of the region of the building.
2. Method according to the preceding claim, the electronic control device being adapted to record an "opening memorization" information item which can assume a first value or a second value, the method comprising the additional iterative steps, if the interior temperature measured is above the minimum comfort temperature (216), of:

   - if the "opening memorization" information item is equal to the first value, then, subsequent to the commanding (217) of opening of the plurality of the opening members of the building, or of the region of the building, recording, as new value of the "opening memorization" information item, the second value in combination with a validity time, or,

   - if the "opening memorization" information item is equal to the second value, then ignoring the step of commanding opening of the opening members,

   the value of the "opening memorization" information item being replaced by the first value upon expiry of the validity time.
3. Method according to either one of the preceding claims, the electronic control device being adapted to be moreover connected to at least one weather forecast server (120), the server being adapted to provide a maximum forecast exterior temperature (T_ext-prev-max), the method comprising at least a first and a second execution mode, the method comprising the additional prior steps of:

   - determining (202), in addition to the minimum comfort temperature, a median comfort temperature (T_conf-med) and a maximum comfort temperature (T_conf-sup),

   - determining (204), as a function of the maximum forecast exterior temperature, of the minimum comfort temperature, of the median comfort temperature and of the maximum comfort temperature, a mode of executing the method, the first executing mode being selected if the exterior temperature is below a temperature defined as a function of the minimum comfort temperature and of the median comfort temperature,

   and, if the interior temperature measured is below the minimum comfort temperature (210), then:

   - if (211) the electronic control device is in the first executing mode, then:

   ° closing the opening members (215) without executing the iterative steps,

   - if (211) not, executing the iterative steps (212, 213, 214).
4. Method according to any one of the preceding claims, the electronic control device being connected to a device (113) for detecting an occupation of the building, or of the region of the building, the method comprising the additional prior steps of:

   - receiving data of occupation of the building, or of the region of the building, from the device for detecting the occupation of the building, or of the region of the building,

   - determining, from data received, an occupation model of the building, or of the region of the building, by means of a reinforcement learning algorithm,

   the moment of occupation of the building by a user (212) being determined as a function of the occupation model of the building or of the region of the building.
5. Method according to any one of the preceding claims, the electronic control device being adapted to command the opening and/or the closing of a plurality of blinds of the building, or of the region of the building, the steps of the method comprising a commanding of opening and/or closing of the opening members that at the same time allows a commanding of opening and/or closing of the blinds.
6. Electronic control device (110, 300) for a home automation system, the electronic control device being configured to control a plurality of opening members (102, 103, 104, 105) of a building (100), or of a region of the building (100), the electronic control device being configured to execute the steps of a method for controlling the opening members according to one of the preceding claims.
7. Computer program, characterized in that it comprises instructions for implementing, by a processor of an electronic device, the method for controlling opening members according to one of Claims 1 to 4 when the computer program is executed by the processor.
8. Recording medium, readable by an electronic device, on which the computer program according to the preceding claim is stored.

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