FR3002333A1 - METHOD FOR OPERATING A DEVICE FOR CONTROLLING A BUILDING INSTALLATION USING AN ADJUSTMENT STEP OF A CLOCK USED TO PILOT A BUILDING EQUIPMENT - Google Patents

Abstract

The operating method of a control device of a building installation, preferably tertiary, whose control device comprises at least a first interface (7) configured to be associated with a sun sensor (2) a clock (3) associated with a time data repository and at least a second interface (8) configured to be associated with a device (4) to be driven according to a time value from the clock (3), comprises a step of adjustment (E1) of the reference frame of the clock (3) from at least one datum related to a sun measurement (2).

Description

A method of operating a control device of a building installation implementing a step of adjusting a clock used to control a building equipment Technical field of the invention The invention relates to the field of control of a building. one or more equipment of a building so as to improve parameters such as light comfort and / or thermal comfort. The invention more particularly relates to a method of operating a control device of a building installation. Another object of the invention corresponds to a building installation and yet another object corresponds to a control device making it possible in particular to implement the steps of the state of the art operating method. buildings, in particular of the solar protection of buildings, there are solar protection or thermal management installations whose functioning uses a pre-calibrated database associating, with a timestamp in a calendar year, one or more theoretical instructions. control, 30 themselves associated with one or more theoretical climatic information, particularly relating to the sun, such as the brightness or the angle of incidence of the sun on a window or a given area of the building. These theoretical instructions from the database allow an algorithm to manage the position of the sun protection and bring benefits of light and / or thermal comfort to the occupant over time. The selection of the theoretical setpoint to be applied is a function of input data, including in particular a general climatic datum, such as an overall brightness level, provided for example by a sunshine sensor placed on the roof of the building and a time data item. Each input data is supplied to a control device which determines from this database whether or not the configuration of the sun protection has to be adjusted according to the associated theoretical setpoint to deliver benefits to the occupants of the building. This results in the need for the presence of a clock precisely set, and used in combination with the pre-calibrated database. In addition, it is important that the setting of the time reference of the clock matches the clock used in the calibration of the database. Synchronization of the clock time used for database calibration can be done via the time of a computer on which a sunscreen installation software is installed. Therefore, if the time of the computer used for synchronization is incorrect, it follows a time shift in the control of the facade equipped with said sunscreen.

Moreover, it is also important to reset this reference, especially during summer / winter time changes. In addition, power cuts can cause desynchronization of the clock, and therefore an aberrant control of the solar protections of the building. OBJECT OF THE INVENTION The object of the present invention is to propose a solution that overcomes the disadvantages listed above. The method described below differs from the prior art in particular in that the time reference of the clock associated with the control device, to serve as a basis for decision making in the animation of one or more equipment, is modified from at least one datum related to a measurement of sunshine, in particular by a sunshine sensor.

This goal is particularly attained by means of a method of operating a control device of a building installation, preferably a tertiary one, the control device comprising at least a first interface configured so as to be associated with a sensor. sunshine, a clock associated with a temporal data repository and at least a second interface configured to be associated with a device to be driven according to a time value from the clock, said method comprising a step of adjusting the clock frame from at least one piece of data related to a sun measurement.

According to one embodiment, the method uses a database comprising a plurality of records each associated with a temporal information and information relating to the sun, and the adjustment step comprises: a step of determining a concordance point of the data related to the sun measurement with a record of the database, - a step of modifying the repository of the clock from the temporal information associated with the point of concordance.

According to another embodiment, the method uses a database comprising a plurality of records each associated with temporal information and information relating to sunlight, and the adjustment step comprises: a determination step of a point of concordance between the time value derived from the clock and a temporal information of the database, - a step of modifying the clock reference based on the information relating to the sunshine associated with the point of concordance. .

Advantageously, the method comprises a step of verifying a need for resetting the clock of the control device, said verification step validating the adjustment step in case of positive verification.

Preferably, the data related to the sun measurement is a brightness measurement and / or a measurement of incidence angle of light rays. Advantageously, the adjustment step is carried out at least once a day. The method may further comprise a step of initializing the clock repository, for example by connecting a computer hosting an installation software or by connecting to a clock on the Internet.

According to one embodiment, the method comprises a step of controlling the equipment comprising: a step of determining, in particular by reading in a database, an incidence of solar radiation and / or brightness at the level of at least a part of the building and / or a control instruction associated with the time value coming from the clock, and a step of modifying a state of the equipment from at least incidence and / or brightness and / or setpoint (s). The invention also relates to a control device comprising a memory provided with instructions for implementing the operating method as described, the clock, a first interface configured so as to be associated with the sun sensor, a second interface configured to be associated with the equipment.

The invention also relates to a building installation comprising software and / or hardware elements for implementing an operating method as described, in particular a control device to which an equipment is connected to the second interface and a control device. Sunshine sensor is connected to the first interface. For example, the equipment is configured to maneuver a mobile element of a home automation equipment for closing, occultation or screen. The invention also relates to a data storage medium readable by a computer, on which is recorded a computer program comprising computer program code means for implementing the steps of the operating method. The invention also relates to a computer program comprising computer program code means adapted to performing the steps of an operating method as described, when the program is executed by a computer. BRIEF DESCRIPTION OF THE DRAWINGS Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention given by way of non-limiting example and shown in the appended figures for which: FIG. a particular implementation of an installation configured to perform the operating method, - Figure 2 schematically shows steps of a particular embodiment of the invention.

DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION Thus, according to one embodiment of the invention (FIG. 1), an installation 1 for a building, preferably a tertiary building such as an office building, may comprise a sensor sunshine 2, a clock 3 associated with a temporal data repository and at least one equipment 4. Equipment as referred to in the present description may be an actuator, a heating unit, a lighting system, etc. The sun sensor 2 makes it possible to measure a signal representative of solar radiation, for example brightness, and / or to determine the incidence of solar radiation from one or more measurements originating from said sensor. One or more signals of the same nature, or of different types, from one or more corresponding sensors may also be used. For example, the sun sensor may be a photodiode or a photovoltaic panel used in a first configuration of the installation to recharge a battery and in a second configuration of the installation as a sun sensor. Such an installation may include a control device 5, in particular for controlling it. Such a control device 5 may comprise at least a first interface 7 configured to be associated with the sun sensor 2, the clock 3 associated with the temporal data repository and at least one second interface 8 configured to be associated with 4. The equipment 4 is intended to be driven according to a time value from the clock 3. It is understood that the first interface 7 is configured to be connected to the sun sensor 2 and that the second interface 8 is configured to be connected to the equipment 4. These links can be wired or wireless. The clock 3 may be that of a microprocessor belonging to the control device. By "control as a function of a time value derived from the clock 3", 10 is meant for example the triggering of an action performed by the equipment 4 when the time value from the clock 3 reaches or exceeds a value predefined. By "temporal data repository" is meant the time base according to which the clock 3 is set. This repository can be set to a particular time zone, or be chosen freely. By "time value from the clock" means the current time of the clock 3 that is to say at a given time of 24 hours. As illustrated in FIG. 2, a method of operating the control device of an installation 1 comprises an adjustment step El 20 of the reference frame of the clock 3 from at least one datum linked to a (or according to a another equivalent formulation resulting from a measure E2 sunlight, including the sun sensor 2, called general climate data. This adjustment step E1 can be a modification corresponding to a positive or negative shift of the reference frame of the clock 3, also commonly referred to as clock setting of the clock 3.

The general climatic datum resulting from the measurement step may be the measurement itself in particular from the sunshine sensor or a datum whose result depends at least in part on the measurement. By "sunshine measurement" is preferably meant a quantification of the sunlight that can directly or indirectly impact the building. The measurement of sunlight corresponds for example to the quantification of a brightness at the level of the building, or to the measurement of an angle of incidence of the solar radiations with respect to the building. As mentioned above, this measurement is advantageously implemented by the sun sensor. According to a particular implementation, the method uses a database (preferably the database belongs to the control device) comprising a plurality of records each associated with a time information or time stamp (for example a given time) and with information relating to the sun (for example a brightness and / or an incidence of solar radiation) preferably for each window or zone of the building equipped with the installation. Typically, this database may comprise, in a nonlimiting manner, an association of a predetermined value of information relating to the sunlight for each minute of a year and preferably for each window or zone of the building equipped with the installation. Therefore, the adjustment step E1 can comprise, as illustrated in FIG. 2, a step of determining E1-1 of a point of concordance of the general climatic datum with a record of the database and a step of modification E1-2 of the repository of the clock 3 from the time information associated with the point of concordance. Typically the general climatic data will not necessarily be included in the database, in which case the point of concordance corresponds to the record whose information relating to the sun is closest to the climatic data. It is understood that if information relating to a sunshine included in the database corresponds exactly or substantially to the general climatic datum resulting from the sunshine measurement, and that the temporal information associated in the database with said information relating to a sunshine is a time that does not correspond to the current time of the clock, it is possible to adjust the current time of the clock by modifying its reference. Alternatively and according to the same principles, it is possible to determine a point of concordance (E1-1) between the current time (that is to say the time value resulting from the clock) and a temporal information of the base of data. Then the general climatic data can be compared with the information of sunshine associated with the temporal information.

A deviation between these compared data is possibly indicative of a shift of the clock. In other words, the adjustment step may, in the context of the alternative, comprise a step E1-2 modification of the reference frame of the clock from the information relating to the sunshine associated with the point of concordance.

Of course, it is possible that the vagaries of the weather cause variations in brightness not attributable to a time difference, for example the passage of a cloud in front of the sunshine sensor 2 or a gray sky day. Therefore, the decrease in brightness associated with said passage could lead to an unwanted modification of the clock repository 3. Thus, according to an improvement, it implements an additional step of checking El-11 of a need for resetting the clock. . In the case where this verification has a positive result, the adjustment step El is validated for example by the implementation of the modification step El -2. In the opposite case, the first offset noted does not lead to a modification E1-2 of the frame of reference of the clock. The process can then loop back to a step of measuring a general climatic data. According to a particular example, a mechanism making it possible to verify the need for a registration may be as follows: it is checked whether the temporal information associated with the matching point is offset from the time value resulting from the clock 3 by at least d a predetermined value, for example 1 hour. If this is the case then we have identified a need to shift the clock. To carry out the shift (that is to say the modification step E1-2), it is possible to determine the difference between the value of the time information coming from the clock and that of the time information of the concordance point, the difference then being equal to the desired offset of the clock. It is also possible to verify a need for registration if a difference is detected between the current time and the time information at the point of concordance, by reiterating the method at a later time, for example during the same day. In this case, it is understood that the verification step comprises a new step of determining a point of agreement as well as a new step of comparing at least one of the values associated with the registration of the new point of agreement with the new value of the sun measurement or, if necessary, with the new time value resulting from the clock, this comparison step making it possible to confirm whether or not there is a real need for resetting the time reference of the clock. 3. The step of determining the point of concordance also implies that several points of concordance can be located in the database during the same determination step E1-1 of a concordance point. In this case, the determination step is applied to all of these points of agreement. The modification step E1-2 can itself be a partial or weighted registration step. The modification step E1-2 is thus implemented progressively, over several days, when it is actually noted a shift remaining after the step of determining the point of concordance E1-2. This partial or weighted registration makes it possible to avoid inadvertent registration while ensuring that a situation in which a registration is necessary is not allowed to continue. The registration is thus smoothed over time. . According to one embodiment, the adjustment step El is implemented at least once a day. This makes it possible to reset the clock every day and to take into account the possible climatic phenomena which will affect the environment at the level of the building during the day. According to a particular example of execution of the method, for a given day D of the year and at a time tl of this day J, a measurement of brightness Li is performed by the sunshine sensor 2. From prerecorded data in a database mapping the brightness, especially over a full year, it is recovered from the database a charted brightness L2 corresponding to this day J and at this time tl. This mapped luminosity L2 can be compared with the measured luminosity Li. For example, if Li> L2, then we consider that there is an error of the reference frame of the clock 3 and in this case it is updated by an offset of the current time of the clock at a time, of the same date, included in the database and whose associated mapped brightness value is closest to or equal to the measured brightness Li. On the other hand, if L2> L1, it is possible to determine that it is simply a passage of a cloud and that there is no need to reset the repository of the clock 3. We can choose to compare only the brightness associated with certain windows or areas of the building, for example, areas facing south. According to another particular example of execution of the method, for a given day D of the year and at a time tl of this day J, a determination of incidence angle α of the sun is made from one or more measurements from the sunshine sensor 2. From data pre-recorded in a database mapping the angle of incidence, in particular over a full year, a mapped incidence angle a2 corresponding to the data base is retrieved from the database. this day J and at this moment tl. This mapped incidence angle a2 can be compared to the determined angle of incidence ai. For example, if a1> a2 + D or a1 <a2-D, with D an error correction parameter, for example 5%, then we consider that there is an error in the frame of the clock 3 and in this case is updated by shifting the current time of the clock 3 to a time, of the same date, included in the database and whose associated mapped incidence angle is closest or equal to the angle of incidence determined ai. Preferably, brightness and angle of incidence information is combined to verify the need for clock registration. The method may also comprise an initialization step Ei of the repository of the clock 3. For example, this repository of the clock 3 may be initialized by connecting a computer hosting an installation software, the installation software being synchronized with another so-called reference clock 3 such as that of said computer. According to another example, this repository of the clock 3 can be initialized by connecting to a clock on the Internet, in particular by synchronizing the repository of the clock 3 associated with the method to the repository of the Internet clock.

This repository can be the same or different from the repository used for the calibration of the database. The method according to the invention subsequently makes it possible to redefine the repository of the clock for correct use of the database. In fact, apart from the connections to the Internet or to a computer during the configuration phases, the clock 3 of the control device can be completely autonomous. This simplifies the installation, which therefore requires no connection to a synchronized clock and no power supply continuity (for example by backup battery or battery).

As mentioned above, the equipment 4 will be able to be driven from a time value from the clock. In other words, the method may comprise a control step E3 of the equipment 4 comprising a determination step E3-1, in particular by reading in the database, an incidence of solar radiation and / or brightness at level of at least a part of the building associated with the time value derived from the clock 3. Alternatively or in combination with the incidence and / or the brightness, this step E3-1 may comprise a determination step, in particular by reading in the database of a command setpoint associated with the time value derived from the clock 3. In addition, this control step E3 can also comprise a step of modifying E3-2 of a state of the equipment 4 from at least the determined incidence and / or the determined brightness and / or the determined control setpoint. The equipment 4 may, for example, be a winding actuator of a solar shading blind of the building. Thus, the equipment 4 can act on the positioning of said blind so as to cause zero, total or partial blanking of a building window, including for example an orientation of the blades of a venetian blind.

According to a particular implementation, the control setpoint may make it possible to reach or maintain at least one current parameter such as a light comfort parameter and / or a thermal comfort parameter. By "light comfort parameter" is meant, for example, a brightness value which remains in a range considered advantageous for the human eye, for example less than 150-300 Lux. By "thermal comfort parameter" is meant, for example, a temperature value which remains in a range considered advantageous for the human body, for example about 22 °. The modification step E3-2 of the state of the equipment 4 can thus comprise a step of determining E3-2-2 of a new state of the equipment 4 improving said at least one current parameter as a function of the determined incidence and / or brightness determined. This step can be implemented by the equipment 4 itself. Therefore, a current state of the equipment 4 can be modified by the step of modifying the state of the equipment 4 so as to place the equipment 4 in said new state so as to reach the control instruction. The building installation intended to be used as part of the process as described may include software and / or hardware elements for implementing the method as described. The nature of these software and / or hardware elements derive from what has been said above (clock 3, sun sensor 2, equipment 4, etc.). For example, the various steps of the method can be implemented by a calculation unit. In the context of the installation, the equipment 4 is advantageously configured so as to operate a mobile element of a home automation / building automation equipment for closing, occultation, screen, or solar protection or a rolling shutter, a door or blind. In such an installation, the building may be a dwelling or an office building. The notion of building automation corresponds to the application of home automation at the scale of a tertiary building such as an office building. Although the examples given in this description are based on the use of a device 4, the method described above can implement the control of a plurality of equipment 4 controlled independently of one another or in a dependent manner . The equipment or equipment is preferably arranged on one or more facades of the building. The installation, or the control device of the installation, may comprise, for each step of the operating method, an element configured so as to implement said step. Thus, the control device may comprise a sunlight measuring element, an element for determining the time value of the clock, a control element of the equipment, an adjustment element of the clock reference frame. etc. Figure 1 illustrates a particular embodiment of an installation 1 as described. The installation 1 may comprise the equipment 4, and the sunshine sensor 2, in particular respectively connected to the second interface 8 of the control device and to the first interface 7 of the control device.

As illustrated in Figure 1, by way of non-limiting example, a control device 5 may comprise a memory 6 provided with instructions for implementing the operating method as described. In addition, the control device may include the clock 3, a first interface 7 configured to be associated with the sun sensor 2, and a second interface 8 configured to be associated with the equipment 4. The first and second interfaces 7, 8 are configured to transmit and / or receive information respectively from the sun sensor 2 and the equipment 4. Such a control device may be in the form of a housing that can be mounted easily within an installation. The memory 6, the first and second interfaces 7, 8 and the clock 3 can be connected to a computer 9 of the control device 5. The memory 6 may further include the database as described above. Other interfaces not shown may be associated with a configuration tool or computer and / or an Internet connection.

Claims (13)

REVENDICATIONS1. A method of operating a control device of a building installation, preferably tertiary, the control device comprising at least a first interface (7) configured to be associated with a sun sensor (2), a clock (3) associated with a temporal data repository and at least one second interface (8) configured to be associated with a device (4) to be driven according to a time value from the clock (3) ), characterized in that it comprises a step of adjustment (El)) of the reference of the clock (3) from at least one datum related to a sun measurement (2). 2. Method according to claim 1, characterized in that it uses a database comprising a plurality of records each associated with a temporal information and information relating to the sun, and in that the step of adjustment (E1)) comprises: - a step of determining (E1-1) a point of concordance of the data related to the measurement of sunshine with a record of the database, - a step of modification (E1- 2) the clock repository (3) from the time information associated with the point of concordance. 3. Method according to claim 1, characterized in that it uses a database comprising a plurality of records each associated with a temporal information and information relating to the sun, and in that the step of adjusting (El) comprises: - a step of determining (E1-1) a point of concordance between the time value coming from the clock and a time information of the database, - a modifying step (E1-2) the clock reference (3) from the information relating to the sunshine associated with the point of concordance. 4. Method according to any one of the preceding claims, characterized in that it comprises a step of verifying (E1-11) a need for resetting the clock (3) of the control device, said verification step validating the adjustment step in case of positive verification. 5. Method according to any one of the preceding claims, characterized in that the data related to the sun measurement is a brightness measurement and / or a measurement of incidence angle of light rays. 6. Method according to any one of the preceding claims, characterized in that the adjustment step (El)) is carried out at least once a day. 7. Method according to any one of the preceding claims, characterized in that it comprises a step of initialization (Ei) of the repository of the clock (3), for example by connecting a computer hosting installation software or by connecting to a clock on the Internet. 8. Method according to any one of the preceding claims, characterized in that it comprises a control step (E3) of the equipment (4) comprising: - a determination step (E3-1), in particular by reading in a database, an incidence of solar radiation and / or brightness at at least a part of the building and / or a control instruction associated with the time value derived from the clock (3), - and a step of modifying (E3-2) a state of the equipment (4) from at least the incidence and / or the brightness and / or the determined reference (s) ). 9. Control device (5) comprising a memory (6) provided with instructions for carrying out the method according to one of claims 1 to 8, the clock (3), a first interface (7) configured so that to be associated with the sun sensor (2), a second interface (8) configured to be associated with the equipment (4). 10. Installation for building comprising software elements and / or hardware for implementing a method according to any one of claims 1 to 8, in particular a control device according to the preceding claim to which a device (4) is connected to the second interface (8) and a sun sensor (2) is connected to the first interface (7). 11. Installation according to claim 10, characterized in that the equipment (4) is configured to operate a movable member of a home automation equipment for closing, occultation or screen. 12. Computer-readable data recording medium on which is recorded a computer program comprising computer program code means for implementing the steps of a method according to one of claims 1 to 8. A computer program comprising computer program code means adapted to perform the steps of a method according to one of claims 1 to 8, when the program is executed by a computer.