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EP4484695A1 - Verfahren zum lernen eines beweglichen verdunkelungselements einer glasoberfläche durch ein system zum steuern der sonneneinstrahlung - Google Patents

Verfahren zum lernen eines beweglichen verdunkelungselements einer glasoberfläche durch ein system zum steuern der sonneneinstrahlung Download PDF

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Publication number
EP4484695A1
EP4484695A1 EP24183975.2A EP24183975A EP4484695A1 EP 4484695 A1 EP4484695 A1 EP 4484695A1 EP 24183975 A EP24183975 A EP 24183975A EP 4484695 A1 EP4484695 A1 EP 4484695A1
Authority
EP
European Patent Office
Prior art keywords
scan
sensor
occultation
learning
scans
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24183975.2A
Other languages
English (en)
French (fr)
Inventor
Adrien BRUN
Fabrice Claudon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP4484695A1 publication Critical patent/EP4484695A1/de
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/17046—Bottom bars
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809—Control
    • E06B2009/6818—Control using sensors
    • E06B2009/6827—Control using sensors sensing light

Definitions

  • the present invention relates to the automatic control of the position of occultation elements associated with glazed surfaces of a building or dwelling, with a view to optimizing the energy consumption of the building or dwelling and/or maximizing the comfort, in particular visual, of its occupants.
  • a disadvantage of this method is its imprecision when the opening in question is subjected to shade during certain periods of the year by vegetation, surrounding buildings or other parts of the building, for example.
  • the demand WO2014/102221 teaches to fix the photovoltaic generator used to recharge an accumulator on a screening element and to determine, by moving the screening element and measuring a signal representative of the solar radiation on the generator, at least one position of the screening element allowing the accumulator to be recharged.
  • the request FR 3109789 aims to improve the installation described in the application WO2014/102221 to avoid moving the occulting element to the accumulator charging position when the generator is not, at certain times of the year, properly exposed to the sun in the charging position, taking into account the orientation of the generator and/or the presence of projected shadows.
  • the system takes into account the geographical location and a solar path diagram, in order to determine the trajectory of the sun seen by the occulting element.
  • the concealment element can be a vertically moving roller shutter apron.
  • the invention makes it possible to determine precisely the limit between the diffuse sunshine zone and the direct sunshine zone, at various times of the year and at various times of the day, and thus to acquire useful data for the climate management of the building or housing and/or to improve the visual comfort of the occupants, in a relatively simple and inexpensive way.
  • the learning can be easy to implement on existing installations comprising windows or French windows already equipped with electric roller shutters, since it is sufficient to add one or more irradiance sensors to the roller shutter apron.
  • the method may include the calculation, for each acquisition date and time, of a quantity representative of the ratio of direct sunlight to the sum of direct and diffuse sunlight for the glazed surface affected by the occultation element.
  • the invention makes it possible to better characterize the boundary between direct and diffuse radiation on the glass surfaces of buildings or housing, and can make it possible to minimize solar gains in summer while maximizing them in winter. It is also possible to improve visual comfort or optimize cooling by natural ventilation. For example, in summer conditions, the data resulting from the learning make it possible to modulate the opening of the shutters according to the incident irradiance calculated from this measurement and the desired level of illumination in the room.
  • At least one scan is performed each season, and preferably every month. For example, scans are performed at least twice on the same date, at least one hour apart.
  • Scans can be performed at predefined times and dates, given by an acquisition table.
  • the method may include generating a scan schedule and broadcasting it to the user by a visual and/or audio message.
  • the user may be asked to indicate whether or not he accepts the proposed schedule, and to modify it if necessary.
  • the schedule may take into account weather forecasts in order to only propose dates and times during which the measurement will be effective, in particular avoiding periods without direct sunlight due to cloud cover.
  • the method may include checking whether the user has a corresponding authorization before performing a scan. This avoids launching a scan when the occupant does not wish to open or close their roller shutters, for example, or in their absence.
  • the method may include retrieving weather forecast information before launching a scan, the latter being launched only if the forecast is compatible with the measurement of direct sunlight on the glass surface. This avoids unnecessary movements of the occultation element during periods of heavy cloudiness, during which measurements of the limit of direct sunlight cannot be carried out.
  • Several daily scans can be carried out, according to a predefined schedule, taking into account for example the presence or absence of occupants, and/or the times of sunrise and sunset.
  • Data from each scan can be stored in electronic memory.
  • the movement of the occulting element during a scan is preferably carried out over a predefined path.
  • the method may include acquiring the position of the occultation element before performing a scan, the piloting of the occultation element during the scan being carried out so as to return it to the position it occupied before the scan.
  • the position of the occultation element before the launch of a scan may in particular be stored in the system.
  • the predefined stroke can correspond to a round trip of the occultation element between its extreme positions.
  • the irradiance sensor(s) may be disposed substantially at a free end of the occulting element, particularly its lower end. This may make it possible to maximize the extent scanned by each sensor when the occulting element is moved to perform the scan.
  • the occultation element may carry at least one irradiance sensor.
  • the use of several sensors allows more precise information to be collected to calculate the incoming solar flux.
  • the or each sensor may be energy autonomous, being powered in particular by a battery, accumulator and/or photovoltaic panel.
  • a photovoltaic generator When the sensor is powered by a photovoltaic generator, the latter may only be used to power the sensor; it may thus be of reduced size, so that the sensor can be compact and easy to install.
  • the fixing of the sensor(s) on the occultation element can be done by any means, for example by magnetization, gluing, screwing, tightening, etc. and the sensor(s) can also be integrated into the concealment element, for example into a roller shutter apron slat, during its manufacture.
  • Each sensor can include an electronic circuit for transmitting its data via a wireless link, using any type of suitable protocol.
  • Each sensor and the drive device of the occultation element can communicate by a wireless link between them and/or communicate with a remote central unit, for example a home automation system.
  • the control of the occultation element can thus be done in a more precise manner by the precise calculation of the solar contributions transmitted within the building or housing by knowing the direct/diffuse irradiance fractions.
  • the occultation element can be controlled so as to only mask the area receiving direct light, when possible.
  • the invention also relates to a device for concealing a glazed surface, in particular a roller shutter, comprising at least one autonomous irradiance sensor used for implementing the learning method according to the invention, as defined above.
  • autonomous we mean that the sensor has its own energy source, and is therefore not powered by the same energy source as that which powers the electric motor moving the occulting element.
  • the blackout element can be a blind apron, with the sensor integrated or attached to a lower slat of the apron.
  • the sensor may include a means of attachment to a roller shutter apron slat.
  • the device may comprise several light irradiance sensors arranged side by side on the blade.
  • This or these irradiance sensors can be powered by a battery or a photovoltaic panel, the energy delivered by the battery or the panel being used exclusively for the operation of the sensor.
  • a concealment device 1 in the form of a motorized roller shutter, comprising a concealment element 2 consisting of a slatted apron, guided by vertical slides 3.
  • the concealment device can be fitted to any type of glazed surface, for example a window or French window, bay window or roof window.
  • the occulting element 2 illustrated rolls up, when it rises, inside a box 4, in a manner known per se.
  • the last blade 5 of the apron carries a light sensor 6, for example placed halfway along the length of the blade.
  • the occultation device 1 comprises an electric motor controlled by a local electronic unit 10, shown schematically in figure 2 .
  • This unit 10 may be part of a system 8 comprising a home automation system 20 or any other technical management system (BMS) of the building, the communication between the unit 10 and the system 20 being carried out for example by a wireless link.
  • BMS technical management system
  • the central unit 20 to communicate with the local electronic units 10 of several occultation devices, each equipped with at least one corresponding irradiance sensor 6, as well as with a man-machine interface 30, allowing the user to communicate with the central unit 20.
  • This communication between the central unit 20, the interface 30, the sensors 6 and the units 10 can be done wirelessly.
  • the sensors 6 can communicate with the central unit 20 directly, as illustrated, or alternatively with the unit 10 of the corresponding occultation device.
  • the connection of the sensor 6 with the unit 10 can facilitate the exchange of information by requiring only a short-range wireless connection.
  • Each sensor 6 may comprise, as illustrated in figure 10 , an energy source 60, a processing circuit 61 and a communication circuit 62;
  • the energy source 60 is for example a photovoltaic generator which has a dual function, namely on the one hand producing electrical energy to recharge an accumulator used to electrically power the sensor, and on the other hand serving as an irradiance sensor, by measuring the short-circuit current that it delivers, for example.
  • the energy source 60 is a battery, and the sensor 6 comprises a photodetector for measuring light.
  • the processing circuit ensures the shaping of the signal representative of the light intensity received, for example in digital form, and the communication circuit ensures its wireless transmission to the corresponding unit 10.
  • the system represented in the figure 2 can be completed with numerous accessories such as switches or remote controls allowing operation by occupants of the occultation elements, and the central unit 20 can have an internet connection to connect to an API delivering weather data, for example.
  • the central unit 20 can also control one or more heating or ventilation devices.
  • a glazed surface such as a window is shown, and the shadows cast on it at a given time of day and year, these shadows coming from different construction elements located in the environment of the opening.
  • the scan can typically be performed by having the occulting element 2 travel back and forth from an initial high or low position, which returns the occulting element to its initial position and also allows its maximum vertical travel to be determined.
  • FIG. 5 An example of recording the signal delivered by the irradiance sensor during a scan is illustrated in figure 5 .
  • the measured irradiance is plotted on the ordinate.
  • the measurement threshold for the shaded/sunny area is indicated in this figure, the value of which is of the order of 200 to 280 W/m 2 .
  • This figure shows that the signal delivered by the sensor makes it possible to distinguish the areas of the glass surface exposed to direct illumination from those exposed to diffuse illumination.
  • FIG. 4 shows an example of post-processing carried out. The distinction between areas receiving diffuse and direct radiation is obtained by comparison with the indicated threshold.
  • a value Ld2 corresponding to the height in cm of the direct irradiation limit can be extracted for each scan, Ld2 being at most equal to Lx, where Lx designates the occulting height of the apron.
  • a ratio can be calculated that is representative of the length or extent of the glazed surface receiving direct illumination, relative to the total length or extent of the glazed surface; for example, if only the upper quarter of the glazed surface is in the shade, and the rest is exposed to direct sunlight, this ratio is equal to 3 ⁇ 4.
  • Knowing this ratio thus makes it possible to know whether or not the glazed surface is actually exposed to direct sunlight at a given time during the year, and therefore to take this information into account to control the degree of occultation of this surface. and/or other equipment, in order to optimize the thermal and/or visual comfort of the occupants or the energy consumption of the building or housing.
  • the learning process whose steps are illustrated on the figure 7 , can be implemented within, for example, the control unit 20, which then executes a corresponding computer program.
  • the method may include at a step 40 the generation of a schedule for triggering scans.
  • the acquisition matrix includes, for example, two series of values per month, 15 days apart, each series of values on a given day including, for example, as many values as there are times when the sun is up.
  • the schedule that is generated by default aims to fill the acquisition matrix on predefined dates.
  • the method may comprise step 41 of retrieving, when a scan date approaches, from a weather server a forecast of average cloudiness on this date; then, the method comprises step 42 of determining whether the cloudiness is greater than a given threshold, for example 80%, from the data received from the weather server.
  • a given threshold for example 80%
  • a time delay of a predefined duration for example 24 hours, is started, and the process resumes at step 41.
  • the program waits at step 43 for sunrise.
  • This information can be given by the aforementioned acquisition matrix.
  • a scan can be initiated at step 45, after verifying at step 44 that the system has not received a user prohibition to do so.
  • a time delay of a predefined period of time for example one hour, is started, then the program checks at step 46 that the sun is still up before returning to step 44 and starting the next scan.
  • the program can wait for the next scan date, as given by the schedule.
  • the performance of the scan as such can be controlled by the local electronic unit 10 or the central unit 20.
  • It may include recovering the position of the occultation element before launching the scan, at step 50, and if it is in the open position, making the occultation element perform a closing and then reopening movement. If the occultation element is initially in the closed position, the movement is reversed, namely opening and then re-closing.
  • the signal delivered by the brightness sensor is acquired.
  • the irradiance measurement carried out by the brightness sensor 6 is for example sent back with a high frequency, for example every tenth of a second.
  • the learning process can be carried out throughout the year in order to characterize the irradiance measurement during the day and the seasons.
  • the process can be implemented for one year from the commissioning of the system.
  • the process can be repeated at the user's request if a change around the habitat impacting in particular the masks (construction, trees, etc.) is noted.
  • FIG. 9 an alternative embodiment of the invention has been illustrated, where several irradiance sensors 6 are used, arranged side by side on the occultation element. This makes it possible to have a finer resolution of the measurement of the sunlight at the level of the glazed surface, and therefore a better precision of the control using this data.
  • the occultation device can be internal or external, and its opacity can be total or partial.
  • the data resulting from the implementation of the learning method according to the invention can be combined with other information, for example the presence or absence occupants and/or air quality, to control the blackout devices in order to achieve the desired goal.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP24183975.2A 2023-06-26 2024-06-24 Verfahren zum lernen eines beweglichen verdunkelungselements einer glasoberfläche durch ein system zum steuern der sonneneinstrahlung Pending EP4484695A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2306679A FR3150231A1 (fr) 2023-06-26 2023-06-26 Procédé pour l’apprentissage, par un système de commande d’un élément mobile d’occultation d’une surface vitrée, de données relatives à l’exposition au soleil de cette surface.

Publications (1)

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EP4484695A1 true EP4484695A1 (de) 2025-01-01

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EP24183975.2A Pending EP4484695A1 (de) 2023-06-26 2024-06-24 Verfahren zum lernen eines beweglichen verdunkelungselements einer glasoberfläche durch ein system zum steuern der sonneneinstrahlung

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FR (1) FR3150231A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640241A1 (de) * 1986-11-25 1988-05-26 Ind Elektronik Und Feinmechani Sonnenschutzverfahren und -vorrichtung
WO2014102221A1 (fr) 2012-12-27 2014-07-03 Somfy Sas Actionneur de manoeuvre d'un element mobile de fermeture, de protection solaire, d'occultation ou d'ecran et procede de fonctionnement d'un tel actionneur de manoeuvre
EP3336300A1 (de) 2016-12-15 2018-06-20 Commissariat à l'Energie Atomique et aux Energies Alternatives Verfahren und vorrichtung zum bestimmen der solarleistung, die durch eine öffnung eindringt
US20190277086A1 (en) * 2018-03-12 2019-09-12 Roll-A-Shade, Inc. Solar-powered intelligent automated motorized window treatment with increased energy efficiency and method of using same
LU101706B1 (de) * 2020-03-27 2021-09-27 Leaftech Gmbh Computerimplementiertes Verfahren zum Bestimmen einer Sonneneinstrahlung auf ein Objekt
FR3109789A1 (fr) 2020-04-29 2021-11-05 Somfy Activites Sa Procédé de commande en fonctionnement d’une installation d’occultation ou de protection solaire et installation associée
US20220170321A1 (en) * 2020-11-30 2022-06-02 Lutron Technology Company Llc Sensor for detecting glare conditions

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640241A1 (de) * 1986-11-25 1988-05-26 Ind Elektronik Und Feinmechani Sonnenschutzverfahren und -vorrichtung
WO2014102221A1 (fr) 2012-12-27 2014-07-03 Somfy Sas Actionneur de manoeuvre d'un element mobile de fermeture, de protection solaire, d'occultation ou d'ecran et procede de fonctionnement d'un tel actionneur de manoeuvre
EP3336300A1 (de) 2016-12-15 2018-06-20 Commissariat à l'Energie Atomique et aux Energies Alternatives Verfahren und vorrichtung zum bestimmen der solarleistung, die durch eine öffnung eindringt
US20190277086A1 (en) * 2018-03-12 2019-09-12 Roll-A-Shade, Inc. Solar-powered intelligent automated motorized window treatment with increased energy efficiency and method of using same
LU101706B1 (de) * 2020-03-27 2021-09-27 Leaftech Gmbh Computerimplementiertes Verfahren zum Bestimmen einer Sonneneinstrahlung auf ein Objekt
FR3109789A1 (fr) 2020-04-29 2021-11-05 Somfy Activites Sa Procédé de commande en fonctionnement d’une installation d’occultation ou de protection solaire et installation associée
US20220170321A1 (en) * 2020-11-30 2022-06-02 Lutron Technology Company Llc Sensor for detecting glare conditions

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Publication number Publication date
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