Building control for providing a defined indoor climate

Abstract

The present invention relates to a method 14 for providing a defined indoor climate in at least one room 2 of a building, wherein an upper parameter threshold and a lower parameter threshold are provided for the room air parameter 300, the processing 400 of the measurement signal 6 comprises a comparison 500 of the measured room air parameter with the upper parameter threshold and / or with the lower parameter threshold, the opening signal is generated 700 if the currently measured room air parameter exceeds the upper parameter threshold, or the closing signal is generated 800 if the currently measured room air parameter matches or falls below the lower parameter threshold.

Description

Field of invention

[0001] The present invention relates to a method for providing a defined indoor climate in at least one room of a building and a corresponding building control system. Background of the invention

[0002] The oxygen and carbon dioxide levels in the air, the temperature, the humidity, and the amount of house dust are indoor air parameters that significantly influence the indoor climate and the well-being of the people in that room. A humidity level of around 50% and a room temperature of approximately 22°C are considered optimal.

[0003] A significant increase in room temperature, and thus a marked deviation from this optimal temperature, is easily possible in summer due to direct sunlight on windows or the roof and generally higher outdoor temperatures. This can, however, lead to a significant impairment of general well-being, sleep quality, and concentration. Conversely, a lower room temperature, which can easily occur in winter due to low outdoor temperatures, also causes discomfort for people in the room and, in the worst case, can even increase susceptibility to infectious diseases such as the flu. Therefore, to keep the room temperature as constant as possible, close to the optimal temperature for each individual, cooling systems such as air conditioning are frequently used in summer, and heating systems in winter.

[0004] Too low humidity can cause eye, skin, and mucous membrane irritation in people, while too high humidity can lead to faster mold growth. Humidifiers are particularly useful in winter when the air is dry from heating and mucous membranes are irritated. However, bacteria or mold spores can accumulate in the water reservoir and be released into the room air. Prolonged use can lead to health problems. To prevent this, humidifiers require regular cleaning and water changes, which represents a significant additional effort for homeowners or tenants. Furthermore, these devices consume electricity.

[0005] Especially in offices and seminar rooms, several people often sit and concentrate on their work. Through breathing, oxygen is consumed and converted into carbon dioxide (CO2). If there is too much CO2 in the air, this has a noticeable impact on work performance. The optimal natural oxygen level is around 23%. Humans have very limited perception of excessively low oxygen or high CO2 levels in the air, which is why CO2 monitors are increasingly used today. These devices alert the user, for example, audibly, when the CO2 level in the room exceeds a certain predefined value, which can then be remedied by exchanging the air, for example, by airing out the room.

[0006] House dust consists of particles that are brought into living spaces from outside or originate directly from within, such as fibers, hair, or dander. Inhaling these tiny dust particles can lead to bronchitis and irritate the respiratory tract. For these reasons, living spaces, bedrooms, and workplaces should be regularly dusted, which is often achieved using air filters in state-of-the-art methods or systems.

[0007] In processes or systems for providing a state-of-the-art indoor climate adapted to the wishes of the respective user or occupant of the interior space / building, as used, for example, in smart home systems, at least some of the aforementioned room parameters, such as the oxygen or carbon dioxide content in the air, the temperature, the humidity, and the house dust load, are determined by means of appropriate measuring or sensor systems, the recorded measurement data is transmitted to a central computing or control unit and compared there with corresponding predefined parameter limits in order to determine which room air parameters are still within the corresponding parameter range, i.e., optimal or still acceptable, and which room air parameters are outside the corresponding predefined range and therefore need to be adjusted.

[0008] If such a measured value outside the predefined parameter range is detected, the computing or control unit transmits a corresponding signal to the relevant building unit, such as the heating system, the air conditioning system, the humidifier or the air filter, which is then activated or deactivated accordingly, thus bringing the corresponding room air parameter back into the desired, predefined parameter range.

[0009] However, these state-of-the-art methods or systems have the disadvantage that, in addition to processing the measured values ​​and comparing them with the corresponding parameter ranges, the computing or control unit also has to control and coordinate the various building units, which leads to an increased computing load and thus also to an increased susceptibility to errors (e.g., system crashes or miscalculations) for the computing or control unit.

[0010] Another disadvantage of state-of-the-art methods or systems is that, especially when using many different building units, many maintenance or, in the worst case, even repairs have to be carried out, which on the one hand cause additional costs and on the other hand lead to a short-term failure of the building units.

[0011] A particularly serious disadvantage of state-of-the-art methods and systems lies in their increased energy consumption, which is a significant factor, especially considering ever-rising energy costs and environmental concerns. This increased energy consumption stems from two main reasons: firstly, the increased computational load on the control unit, which consequently requires more electricity and cooling; and secondly, the energy consumption generated by the building components themselves. Devices such as air conditioners, humidifiers, and air filters consume a considerable amount of electricity, while a heating system (e.g., a gas boiler) consumes corresponding resources. The increased energy consumption of state-of-the-art methods and systems is particularly significant because the indoor climate, especially in offices and living spaces, must be adjusted almost year-round.

[0012] There is therefore a need for methods or systems for providing a defined indoor climate that are simpler and / or more energy-efficient. Object of the invention

[0013] It is therefore the object of the invention to provide a method, system and computer program product that overcomes the disadvantages of the prior art.

[0014] Another task is to provide a method, system and computer program product that makes providing a defined indoor climate in at least one room of a building easier and / or more energy-efficient.

[0015] These problems are solved by realizing at least some of the characterizing features of the independent claims. Features that further develop the invention in an alternative or advantageous way can be found in some of the remaining features of the independent claims and in the dependent claims. Summary of the invention

[0016] The invention relates to a method for providing a defined indoor climate in at least one room of a building, wherein the room comprises: at least one sensor arrangement for measuring an indoor air parameter relating to the room air and for providing a measurement signal representing the indoor air parameter, and a ventilation flap adjustable by a motor to a closed position and various open positions, wherein the method comprises: measuring the indoor air parameter and providing the measurement signal, processing the measurement signal, and generating a control signal for controlling the motor based on the processing of the measurement signal, wherein the control signal can be generated as an opening signal to provide one of the various open positions or as a closing signal to provide the closed position of the ventilation flap.wherein an upper parameter threshold and a lower parameter threshold are provided for the room air parameter, the processing of the measurement signal comprises a comparison of the measured room air parameter with the upper parameter threshold and / or with the lower parameter threshold, the opening signal is generated if the currently measured room air parameter exceeds the upper parameter threshold, or the closing signal is generated if the currently measured room air parameter equals or falls below the lower parameter threshold, in particular wherein the upper parameter threshold is greater than the lower parameter threshold.

[0017] The inventive design of the method has the advantage that a defined indoor climate in at least one room of a building is provided via the precise and automated control of the ventilation flaps. Thus, neither the use of additional energy- and maintenance-intensive building units, such as heating systems, air conditioning systems, humidifiers and / or air filters, nor the constant opening and closing of the ventilation flaps by a user / occupant of the room is necessary.

[0018] The indoor climate of a building can thus be adjusted and maintained within a specific range, particularly within certain parameters of the building structure, solely by controlling or regulating the ventilation process. A conventional heating system, which is typically required, can therefore be completely dispensed with.

[0019] In an exemplary embodiment of the method according to the invention, the acquisition and processing of the measurement signal as well as the generation of the control signal can be carried out continuously or periodically.

[0020] This embodiment of the inventive method has the advantage that, when the user / resident is using the room, for example an office during normal business hours, the corresponding steps of the method can be carried out continuously, and when the room is temporarily unused, for example on weekends or when the user / resident is on vacation, it can be switched to periodic operation, i.e., the method is not carried out temporarily.

[0021] In a further embodiment of the method according to the invention, the sensor arrangement for measuring a carbon dioxide concentration in the room air and for providing the measurement signal can be configured as a measurement signal representing the carbon dioxide concentration, wherein the measured room air parameter comprises the measured carbon dioxide concentration. The upper parameter threshold can represent an upper carbon dioxide threshold, and the lower parameter threshold can represent a lower carbon dioxide threshold.

[0022] In a further embodiment of the method according to the invention, the carbon dioxide threshold can correspond to a carbon dioxide concentration from a range between 800 ppm and 1600 ppm, in particular from a range between 1200 ppm and 1500 ppm.

[0023] These embodiments of the inventive method have the advantage that the carbon dioxide concentration or the oxygen content is kept constant in a predefined range (the optimal range for the user / occupant of the room) by the precise and automatic control of the ventilation flaps, without the need for specially provided ventilation systems (e.g. with fans or ventilation shafts) or the user / occupant having to constantly open the ventilation flaps manually after being alerted by a corresponding measuring device.

[0024] For example, if a maximum permissible carbon dioxide concentration is exceeded, the adjustable ventilation flap is opened, allowing fresh outside air with a lower carbon dioxide content to enter the room and thus reducing the carbon dioxide concentration.

[0025] In a further embodiment of the method according to the invention, the sensor arrangement for measuring an indoor temperature Ti of the room air and for providing the measurement signal can be configured as a measurement signal representing the indoor temperature Ti, wherein the measured room air parameter corresponds to the measured indoor temperature Ti. The upper parameter threshold can represent an upper indoor temperature threshold, and the lower parameter threshold can represent a lower indoor temperature threshold.

[0026] In a further embodiment of the method according to the invention, the (upper and lower) indoor temperature threshold can correspond to a temperature from a range between 22 °C and 26 °C, or the (upper and lower) indoor temperature threshold can depend on an average of an outdoor temperature of ambient air outside the room or building, wherein the average is derived based on measured or obtained outdoor temperature values ​​for a period of at least 24 hours, and / or the average is derived based on a temperature forecast, or the (upper and lower) indoor temperature threshold can be calculated based on a weighting of the average outdoor temperature.

[0027] In a further embodiment of the method according to the invention, the indoor temperature threshold can be adjusted by comparing the average based on measured or obtained outdoor temperature values ​​and the average based on the temperature forecast.

[0028] For example, if the current average outside temperature is 35 °C, the current inside temperature is 24.5 °C, and the upper inside temperature threshold is 25 °C, the ventilation flap would receive an opening signal and open as soon as the inside temperature exceeds 25 °C, which could happen very soon given the current outside temperatures. However, this opening of the ventilation flaps would allow hot outside air to enter the interior, causing the inside temperature to rise even further instead of falling. According to the weather forecast, however, a significant drop in outside temperatures to an average of around 24 °C is expected in two hours. Therefore, a comparison is made between the current outside temperatures and the forecasted outside temperatures in two hours, whereupon the upper inside temperature threshold is adjusted to 26 °C. In this way, the ventilation flap will open when the threshold is reached.The ventilation flaps should not be opened if the indoor temperature exceeds 25 °C, thus preventing the previously described negative effects of high outdoor temperatures. Instead, the flaps will remain closed until the predicted cooling of outdoor temperatures occurs. At that point, the flaps can be opened and the upper indoor temperature threshold reset to the original 25 °C.

[0029] These embodiments of the inventive method have the advantage that the indoor temperature T i of the room air is kept constant in a predefined range (the optimal range for the user / occupant of the room) by the precise and automatic control of the ventilation flaps, without the need for specially provided air conditioning or heating systems.

[0030] In a further embodiment of the method according to the invention, the sensor arrangement for measuring the humidity of the room air and for providing the measurement signal can be designed as a measurement signal representing the humidity, wherein the measured room air parameter has the measured humidity, and the upper parameter threshold can have an upper humidity threshold and the lower parameter threshold a lower humidity threshold.

[0031] In a further embodiment of the method according to the invention, the humidity threshold can correspond to a humidity level in a range between 30% and 70%, in particular in a range between 40% and 60%.

[0032] In a further embodiment of the method according to the invention, the opening signal and the closing signal can be generated depending on the humidity, wherein the opening signal can be generated when the humidity threshold is undershot and the closing signal when the humidity threshold is exceeded, or the opening signal can be generated when the humidity threshold is exceeded and the closing signal when the humidity threshold is undershot.

[0033] These embodiments of the inventive method have the advantage that the humidity of the room air is kept constant in a predefined range (the optimal range for the user / occupant of the room) by the precise and automatic control of the ventilation flaps, without the need for specially provided humidifiers.

[0034] In a further embodiment of the method according to the invention, the sensor arrangement can be configured to measure an outside temperature and to provide an outside temperature signal, wherein the outside temperature signal represents an outside temperature of ambient air located outside the room and connected to the ventilation flap, and the outside temperature signal can be received and processed taking into account an outside temperature threshold.

[0035] In a further embodiment of the method according to the invention, the opening signal can be generated depending on the outside temperature, wherein the opening signal can only be generated if the outside temperature threshold is undershot, or if the outside temperature threshold is undershot, it can be generated in such a way that the ventilation flap provides a partial opening, in particular a partial opening between 20% and 40% of the maximum opening cross-section of the ventilation flap.

[0036] In a further embodiment of the method according to the invention, the closing signal can be generated depending on the outside temperature, whereby the closing signal can only be generated if the outside temperature threshold is exceeded.

[0037] In a further embodiment of the method according to the invention, the outside temperature threshold can correspond to the inside temperature T i of the room air, or to a reduced inside temperature T r of the room air, wherein for the reduced inside temperature T r: T r = T i - T x , where 0 °C < T x < 5 °C, or to a temperature from a range between 22 °C and 26 °C, or to a temperature from a range between 13 °C and 17 °C (this embodiment is particularly advantageous in summer, as it allows the room, which has been somewhat heated by the hot summer day, to be cooled down again during the cooler nights and / or pre-conditioned to a slightly cooler temperature for the coming summer day).

[0038] These embodiments of the inventive method have the advantage that the measured outside temperature is used to provide the opening or closing signal. Thus, the outside temperature threshold can be set, especially on hot summer days, so that the ventilation flaps are only opened during the cooler morning and evening hours, but not during the hottest part of the day.

[0039] In a further embodiment of the method according to the invention, the upper parameter threshold and / or the lower parameter threshold can be adjusted depending on a comparison of the outside temperature with the outside temperature threshold.

[0040] In a further embodiment of the method according to the invention, the upper carbon dioxide threshold and / or the lower carbon dioxide threshold can be adjusted depending on a comparison of the outside temperature with the outside temperature threshold.

[0041] In a further embodiment of the method according to the invention, the room air parameter can be measured multiple times within a specific measurement cycle, the room air parameter measured in each instance can be recorded together with time information correlating with the measurement as a respective parameter pair, and a state profile for the room during the measurement cycle can be derived and stored based on the parameter pairs.

[0042] In a further embodiment of the method according to the invention, the multiple measurement of the room air parameter, the recording of the parameter pairs, and the derivation of the state profile can be carried out multiple times for several measurement cycles, and the state information can be derived or updated, in particular stored, based on a processing of the multiple state profiles provided thereby, in particular continuously.

[0043] These two embodiments can also include machine learning, particularly AI-supported, in which, for example, a corresponding computing unit is trained to learn first from the acquisition of parameter pairs, the derivation of state profiles from these parameter pairs, and / or the processing of the state profiles, and then to apply and further develop what it has learned. In this way, for example, the derivation of the state profiles can be continuously refined.

[0044] In a further embodiment of the inventive method, the control signal generated during the measurement cycle, in particular several generated control signals, can be processed with time information relating to their generation to derive the state progression. In particular, this processing can be supported or taken over by machine learning software and / or AI.

[0045] In a further embodiment of the inventive method, presence information relating to the measurement cycle can be processed to derive the state progression, wherein the presence information can provide time-resolved information regarding the presence and / or absence of a person in the room. Here, too, machine learning or AI can be used, which, for example, is trained to derive a state progression taking presence information into account and can thus perform this step in an optimized manner after a certain learning and training period.

[0046] In a further embodiment of the method according to the invention, the processing of a current measurement signal can be carried out depending on the state progression and on time information correlated with the current measurement signal, in particular wherein this processing can be supported or taken over by software for machine learning and / or an AI.

[0047] In a further embodiment of the method according to the invention, current presence information can be processed to generate the control signal, wherein the current presence information can provide time-resolved information regarding the presence and / or absence of a person in the room.

[0048] These embodiments of the inventive method have the advantage that measured values, such as how the state of the room air develops depending on the number of people in the room, are not only recorded but also evaluated in order to be able to predict (e.g. by means of machine learning and / or an AI trained with the corresponding data) how the room air will develop when a certain number of people are present, which allows the air dampers to be opened somewhat in advance, not only when the room air is outside the corresponding parameter range.

[0049] In a further embodiment of the method according to the invention, the upper and / or the lower parameter threshold can be adjusted based on the state profile for generating the control signal.

[0050] In a further embodiment of the method according to the invention, a weather forecast for the ambient air associated with the ventilation flap can be obtained, and based on the weather forecast, preconditioning of the room can be carried out by generating the control signal.

[0051] In a further embodiment of the method according to the invention, both the weather forecast and the state progression can be processed to generate the control signal.

[0052] These embodiments of the inventive method have the advantage that, for example, if rain is forecast for the afternoon, which would lead to an unintentionally strong increase in humidity in the room / building if the ventilation flap is open, the control unit takes the weather forecast into account accordingly and ensures that the ventilation flap is opened in the morning / midday and closed again in the afternoon at the latest shortly before the rain starts, thus preconditioning the indoor climate accordingly.Furthermore, the control unit can also take into account the state profile, which indicates, for example, that the CO2 concentration is often outside the parameter limits in the evening, which is why the control unit then determines the optimal time, i.e. in the afternoon / early evening after the rain, at which the ventilation flap can be opened to prevent the occurrence of an evening CO2 concentration outside the parameter limits.

[0053] In a further embodiment of the method according to the invention, the sensor arrangement can be configured to measure a wind speed and to provide a wind speed signal, wherein the wind speed signal represents a wind speed of ambient air located outside the room and connected to the ventilation flap, and the wind speed signal can be received and processed taking into account a wind speed threshold.

[0054] In a further embodiment of the method according to the invention, the opening signal can be generated depending on the wind speed, wherein the opening signal can only be generated if the wind speed threshold is undershot, or if the wind speed threshold is undershot, it can be generated in such a way that the ventilation flap provides a partial opening, in particular a partial opening between 20% and 40% of the maximum opening cross-section of the ventilation flap.

[0055] In a further embodiment of the method according to the invention, the closing signal can be generated depending on the wind speed, whereby the closing signal can only be generated if the wind speed threshold is exceeded.

[0056] In a further embodiment of the method according to the invention, the wind speed threshold can correspond to a wind speed in the range between 60 km / h and 90 km / h.

[0057] These embodiments of the inventive method have the advantage that the ventilation flaps are not opened at wind speeds that would lead to a strong draft in the room / building and could even damage the ventilation flaps.

[0058] In a further embodiment of the inventive method, the defined indoor climate in at least one room of the building can be provided without additional heating, in particular by a heating system, of the room and / or the building. This can save on heating costs, maintenance costs, repair costs, installation costs, etc.

[0059] The invention further relates to a system for providing a defined indoor climate in at least one room of a building, wherein the system comprises: the room with at least one sensor arrangement for measuring an indoor air parameter relating to the room air and for providing a measurement signal representing the indoor air parameter, and a ventilation flap adjustable by a motor to a closed position and different open positions, and a control unit configured for receiving and processing the measurement signal and for generating a control signal for controlling the motor based on the processing of the measurement signal, wherein the control signal can be generated as an opening signal to provide one of the different open positions or as a closing signal to provide the closed position.wherein an upper parameter threshold and a lower parameter threshold for the room air parameter are provided for processing with the control unit, and the control unit has a building control functionality configured such that, when executed, a method according to one of the preceding embodiments is performed.

[0060] In an exemplary embodiment of the system according to the invention, the room and / or the building can be designed such that the ratio of the size of the enveloping surface of the room or the building, measured in m², to the size of the usable floor area of ​​the room or the building, measured in m², is less than 1.9, in particular less than 1.5, and / or the ratio of the size of the gross volume of the room or the building, measured in m³, to the size of the usable floor area of ​​the room or the building, measured in m², is greater than 3.0 and less than 9.5, and / or the ratio of the size of a glass surface of the room or the building, measured in m², to the size of the usable floor area of ​​the room or the building, measured in m², is between 10% and 60%, in particular between 10% and 60%. % and 30%, and / or a ratio of the size of a glass surface of the room or building, measured in m², to the size of a floor area of ​​the room or building.of the building, measured in m², is less than 25%, in particular is greater than 15%.

[0061] In a further embodiment of the system according to the invention, the system can have a motor, in particular an electric motor, for adjusting the ventilation flap to the closed position and the different open positions, and a drive operatively connected to the motor, in particular a chain drive, a linear drive, a spindle drive or a rack and pinion drive.

[0062] In a further embodiment of the system according to the invention, the ventilation flap can have a rectangular shape, a longitudinal axis of the ventilation flap can be a vertical axis or a horizontal axis, and the ventilation flap can be designed to be adjusted to the closed position and the different open positions by rotating around a vertical axis of rotation or a horizontal axis of rotation.

[0063] In a further embodiment of the system according to the invention, the vertical axis of rotation or the horizontal axis of rotation can run parallel to a side edge of the ventilation flap, in particular along a side edge of the ventilation flap, in particular wherein said side edge can correspond to an edge of a longitudinal side of the ventilation flap, and / or the different opening positions of the ventilation flap can correspond to different rotation angles of the ventilation flap about the vertical axis of rotation or the horizontal axis of rotation.

[0064] In a further embodiment of the system according to the invention, the ventilation flap can have a frame, wherein the frame of the ventilation flap, in particular with a longitudinal side, can be arranged on a glass surface, in particular a window, of the room and / or the building, and / or on an enclosing surface, in particular a side wall, of the room and / or the building, and / or on a usable surface, in particular a floor, of the room and / or the building, and / or on a ceiling surface of the room and / or the building, in particular wherein the frame of the ventilation flap can have a longitudinal extent which corresponds at least largely, in particular with a deviation of the longitudinal extent of a maximum of 10%, to a longitudinal extent of the glass surface, in particular of the window, of the room and / or the building.

[0065] In a further embodiment of the system according to the invention, the ventilation flap can be movably arranged on the frame of the ventilation flap, in particular on a longitudinal side of the frame, by means of a hinge, and the vertical axis of rotation or the horizontal axis of rotation can pass through a pivot point of the hinge.

[0066] In a further embodiment of the system according to the invention, the room and / or the building can have a ceiling height in the range of 3 m to 4 m, in particular 3.30 m.

[0067] In a further embodiment of the system according to the invention, the room of the building can have an air exchange rate in the range of 0.05 1 / h to 0.2 1 / h, in particular 0.1 1 / h, when the ventilation flap is in the closed position.

[0068] In a further embodiment of the inventive method and a further embodiment of the inventive system, the defined indoor climate to be provided in at least one room of the building can correspond to a comfort level of IDA 1 (IDA 1 = high indoor air quality) according to European indoor air quality standards EN 13779.

[0069] In a further embodiment of the inventive method and a further embodiment of the inventive system, the defined indoor climate in at least one room of the building can have a total indoor germ count in a range of < 500 CFU / m 3< (according to the specifications of building biology guidelines and WHO experience values).

[0070] In a further embodiment of the inventive method and a further embodiment of the inventive system, the defined indoor climate to be provided in at least one room of the building can comply with the requirements of the EU food processing industry (e.g. kitchens, catering, food production).

[0071] The invention further relates to a computer program product that is stored on a machine-readable medium, in particular stored in a control unit of the system described above, or is embodied by an electromagnetic wave with a program code segment, with program code for carrying out or controlling a method according to one of the preceding embodiments, wherein the computer program product has computer-executable instructions for carrying out the method according to one of the preceding embodiments, in particular wherein the computer program product is configured such that, when executed, the steps of the method according to one of the preceding embodiments are carried out automatically.

[0072] The inventive method, system, and computer program product can also be supported by machine learning and / or AI (as previously described in some embodiments), wherein the extension of the control unit's control algorithm for the intelligent control of the ventilation flaps, in conjunction with artificial intelligence (AI), serves to further optimize the ventilation behavior and adapt it to individual needs and environmental conditions (as previously described in some embodiments). The extended control algorithm offers a holistic solution that is not only based on precise control but is also flexible enough to respond to different contexts and user requirements. The system is transparent and allows the user to understand the decisions and adjust them as needed. The following are some steps and functions that could be integrated into the extension: Dynamic adaptation to environmental conditions: Implementation of algorithms that analyze sensor data to determine the optimal time and duration for ventilation or for opening the ventilation flaps. Consideration of individual user preferences: Integration of user preferences, such as preferred temperature ranges or specific ventilation times, to enable personalized ventilation control. Machine learning algorithms that analyze user behavior over time and adapt to individual preferences, such as ventilation times. Adaptive learning capability: Integration of machine learning to adapt the control algorithm for the ventilation flaps to changing environmental conditions. Use of historical data to recognize patterns and continuously improve the ventilation strategy.Predictive analysis: Implementation of forecasting algorithms that enable predictive ventilation based on weather forecasts or specific events. Fault detection and correction: Integration of mechanisms to detect malfunctions or unexpected events, protecting the system from incorrect decisions, such as opening ventilation flaps during heavy rain or wind. Automatic corrective actions are implemented for detected errors or irregularities. Communication with smart home systems: Integration with other smart home systems to enable holistic control, including, for example, the control of room lighting. Energy efficiency optimization: Implementation of algorithms to optimize energy efficiency, such as by considering solar radiation, which then, for example, has a heating effect.Consider security aspects: Integrate security features to prevent unauthorized access to the system and protect user privacy. Brief description of the drawings

[0073] The inventive method and system are described in more detail below by way of example, using the schematically illustrated embodiments shown in the figures. Identical elements in the figures are marked with the same reference numerals. The described embodiments are generally not drawn to scale and are not to be understood as limiting the scope of the invention. In detail, the figures show... Fig. 1: Schematic representation of an exemplary embodiment of the system according to the invention, Fig. 2: Schematic representation of an exemplary embodiment of the ventilation flap, Fig. 3: Schematic representation of an exemplary embodiment of the method according to the invention. Detailed description of the drawings

[0074] Figure 1 Figure 1 shows a schematic representation of an exemplary embodiment of the system 1 according to the invention for providing a defined indoor climate in the room 2 shown. The system 1 comprises the room 2 with the sensor arrangements 3, 8, and 15, here configured as a thermometer 3 for measuring the room air parameter indoor temperature, a hygrometer 8 for measuring the room air parameter humidity, and a CO₂ measuring device 15 for measuring the room air parameter CO₂ concentration. The room further comprises a door that can be closed by a motor (not shown here) (as in Figure 2). Figure 1 shown) and different opening positions (in Figure 1 (not shown) adjustable ventilation flap 4 and the control unit 5.

[0075] The measurement signal 6, provided by thermometer 3, hygrometer 8, and CO2 measuring device 15 and representing the corresponding room air parameter, is transmitted to the control unit 5, which receives and processes the corresponding measurement signal 6. The control unit 5 then generates the control signal 7 for controlling the motor based on the processing of the measurement signal 6, whereby the control signal 7, in the case shown, is generated as an opening signal 7 to provide one of the different opening positions.

[0076] Figure 2 Figure 1 shows a schematic representation of an exemplary embodiment of the ventilation flap 4, wherein the ventilation flap is in one of its open positions. In the embodiment shown, the rectangular ventilation flap 4 has a frame 9, wherein the frame 9 of the ventilation flap 4 is arranged with one of its long sides against the window 10 of room 2 and with its other long side against the wall 11.

[0077] In the exemplary embodiment shown, the longitudinal axis of the ventilation flap 4 is a vertical axis and the ventilation flap 4 is designed to be adjusted to the closed position and the other opening positions by rotating around the vertical axis of rotation 12, wherein the different opening positions of the ventilation flap 4 correspond to different rotation angles of the ventilation flap 4 around the vertical axis of rotation 12.

[0078] The vertical axis of rotation 12 runs along a longitudinal side edge of the ventilation flap 4 and through a pivot point of a hinge (not shown here) which movably fixes the ventilation flap 4 to a longitudinal side of the frame 9.

[0079] The ventilation flap 4 has a longitudinal dimension that corresponds approximately to the longitudinal dimension of the window 10. The window 10 is such that the ratio of the size of the window 10, measured in m², to the size of a usable area of ​​the room 2, measured in m², is between 10% and 60%, in particular between 10% and 30%, and / or the ratio of the size of the window 10 of the room 2, measured in m², to the size of a floor area of ​​the room 2, measured in m², is less than 25%, in particular greater than 15%.

[0080] Figure 3 Figure 14 shows a schematic representation of an exemplary embodiment of the inventive method 14 for providing a defined indoor climate in at least one room 2 of a building, which comprises the following steps: Measuring 100 of the room air parameter, providing 200 of the measurement signal 6, providing 300 an upper parameter threshold and a lower parameter threshold for the room air parameter, processing 400 of the measurement signal 6, wherein the processing 400 of the measurement signal 6 comprises comparing 500 of the measured room air parameter with the upper parameter threshold and / or with the lower parameter threshold, and generating 600 a control signal 7 to control the motor based on the processing 400 of the measurement signal 6, wherein an opening signal 700 is generated if the currently measured room air parameter exceeds the upper parameter threshold, or a closing signal 800 is generated if the currently measured room air parameter equals or falls below the lower parameter threshold.

[0081] It is understood that these figures only schematically represent possible embodiments. The various approaches can also be combined with each other and with prior art methods.

Claims

1. Method (14) for providing a defined indoor climate in at least one room (2) of a building, wherein the room (2) comprises: • at least one sensor arrangement (3, 8, 15) for measuring (100) an indoor air parameter relating to the indoor air of the room (2) and for providing (200) a measurement signal (6) representing the indoor air parameter; and • a ventilation flap (4) adjustable by a motor to a closed position and various open positions, wherein the method (14) comprises: • measuring the indoor air parameter (100) and providing (200) the measurement signal (6); • processing (400) the measurement signal (6); and • generating (600) a control signal (7) for controlling the motor based on the processing (400) of the measurement signal (6), wherein the control signal (7) serves as an opening signal to provide one of the various open positions or as a closing signal to provide the closed position of the ventilation flap (4). can be produced, 。characterized by the fact that • an upper parameter threshold and a lower parameter threshold for the room air parameter are provided (300), • the processing (400) of the measurement signal (6) includes a comparison (500) of the measured room air parameter with the upper parameter threshold and / or with the lower parameter threshold, • the opening signal is generated (700) if the currently measured room air parameter exceeds the upper parameter threshold, or • the closing signal is generated (800) if the currently measured room air parameter matches or falls below the lower parameter threshold, in particular where the upper parameter threshold is greater than the lower parameter threshold.

2. Method (14) according to claim 1, characterized by the fact that the acquisition (200) and processing (400) of the measurement signal (6) as well as the generation (600) of the control signal (7) are carried out continuously or periodically.

3. Method (14) according to claim 1 or 2, characterized by the fact that • the sensor arrangement (15) for measuring (100) a carbon dioxide concentration in the room air and for providing (200) the measurement signal (6) is designed as a measurement signal (6) representing the carbon dioxide concentration, wherein the measured room air parameter has the measured carbon dioxide concentration, and • the upper parameter threshold has an upper carbon dioxide threshold and the lower parameter threshold has a lower carbon dioxide threshold.

4. Method (14) according to any of the preceding claims, characterized by the fact that • the sensor arrangement (3) for measuring (100) an internal temperature T i the room air and to provide (200) the measurement signal (6) as a measure of the indoor temperature T i representative measurement signal (6) is formed, wherein the measured room air parameter is the measured indoor temperature T iexhibits, and • the upper parameter threshold has an upper indoor temperature threshold and the lower parameter threshold has a lower indoor temperature threshold.

5. Method (14) according to claim 4, characterized by the fact that the indoor temperature threshold • corresponds to a temperature from a range between 22°C and 26°C, or • depends on an average of an outdoor temperature of ambient air outside the room (2) or the building, wherein □ the average is derived on the basis of measured or obtained outdoor temperature values ​​for a period of at least 24 hours, and / or □ the average is derived on the basis of a temperature forecast, or • is calculated on the basis of a weighting of the average of the outdoor temperature.

6. Method (14) according to any of the preceding claims, characterized by the fact that• the sensor arrangement (8) for measuring (100) the humidity of the room air and for providing (200) the measurement signal (6) is designed as a measurement signal (6) representing the humidity, wherein the measured room air parameter has the measured humidity, and • the upper parameter threshold has an upper humidity threshold and the lower parameter threshold has a lower humidity threshold.

7. Method (14) according to any of the preceding claims, characterized by the fact that • the sensor arrangement is designed to measure (100) an outside temperature and to provide (200) an outside temperature signal, wherein the outside temperature signal represents an outside temperature of ambient air located outside the room (2) and connected to the ventilation flap (4), and • the outside temperature signal is received and processed taking into account an outside temperature threshold.

8. Method (14) according to claim 7, characterized by the fact that the opening signal is generated depending on the outside temperature (700), wherein the opening signal is generated • only when the outside temperature threshold is undershot, or • when the outside temperature threshold is undershot in such a way that the ventilation flap (4) provides a partial opening, in particular a partial opening between 20% and 40% of the maximum opening cross-section of the ventilation flap (4).

9. Method (14) according to claim 7 or 8, characterized by the fact that the outside temperature threshold • the inside temperature T i corresponds to the room air, or • a reduced indoor temperature T r corresponds to the room air, whereby the reduced indoor temperature T r applies: T r = T i - T x , where 0°C < T x< 5°C, or • corresponds to a temperature from a range between 22°C and 26°C, or • corresponds to a temperature from a range between 13°C and 17°C.

10. Method (14) according to any of the preceding claims, characterized by the fact that • the room air parameter is measured multiple times within a specific measurement cycle, • the room air parameter measured in each case is recorded together with time information correlating with the measurement (100) as a respective parameter pair, and • based on the parameter pairs a state profile for the room (2) during the measurement cycle is derived and stored.

11. Method (14) according to claim 10, characterized by the fact that the processing (400) of a current measurement signal (6) depending on the state history and on time information correlated with the current measurement signal (6) takes place.

12. Method (14) according to any of the preceding claims, characterized by the fact that• a weather forecast is obtained for the ambient air associated with the ventilation flap (4), and • based on the weather forecast, preconditioning of the room (2) is carried out by generating (600) the control signal (7).

13. System (1) for providing a defined indoor climate in at least one room (2) of a building, wherein the system (1) comprises: • the room (2) with at least one sensor arrangement (3, 8, 15) for measuring an indoor air parameter relating to the indoor air of the room (2) and for providing a measurement signal (6) representing the indoor air parameter, and • a ventilation flap (4) adjustable by a motor to a closed position and different open positions, and • a control unit (5) configured for receiving and processing the measurement signal (6) and for generating a control signal (7) for controlling the motor based on the processing of the measurement signal (6), wherein the control signal (7) can be generated as an opening signal to provide one of the different open positions or as a closing signal to provide the closed position. characterized by the fact that• an upper parameter threshold and a lower parameter threshold for the room air parameter are provided for processing with the control unit (5), and • the control unit (5) has a building control functionality configured such that when it is executed a method (14) according to one of claims 1 to 12 is carried out.

14. System (1) according to claim 13, characterized by the fact that the room (2) and / or the building are designed in such a way that • a ratio of the size of an envelope area (11) of the room (2) or of the building, measured in m² 2 , to the size of a usable area of ​​the room (2) or of the building, measured in m² 2 , is less than 1.9, in particular less than 1.5, and / or • a ratio of the size of a gross volume of the room (2) or of the building, measured in m³ 3 , to the size of a usable area of ​​the room (2) or of the building, measured in m² 2, greater than 3.0 and less than 9.5, and / or • a ratio of the size of a glass surface (10) of the room (2) or of the building, measured in m² 2 , to the size of a usable area of ​​the room (2) or of the building, measured in m² 2 , between 10% and 60%, in particular between 10% and 30%, and / or • a ratio of the size of a glass surface (10) of the room (2) or of the building, measured in m² 2 , to the size of a floor area of ​​the room (2) or of the building, measured in m² 2 , less than 25%, especially greater than 15%.

15. Computer program product stored on a machine-readable medium, in particular stored in a control unit (5) according to claim 13 or 14, or embodied by an electromagnetic wave with a program code segment, comprising program code for carrying out or controlling a method (14) according to any one of claims 1 to 12, wherein the computer program product comprises computer-executable instructions for carrying out the method (14) according to any one of claims 1 to 12, in particular wherein the computer program product is configured such that, upon its execution, the steps of the method (14) according to any one of claims 1 to 12 are carried out automatically.

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