ES2908724T3 - Control apparatus for carrying out a method for drying an area to be dried on a construction site, as well as a method - Google Patents

Abstract

Control apparatus (10) for carrying out a method for drying an area to be dried of a construction site, the control apparatus (10) comprising - at least one mains plug (12) for supplying voltage to the apparatus control panel (10), - at least one controllable voltage outlet (14) for a drying appliance designed as a fan, - at least one controllable voltage outlet (18) for a drying appliance designed as a dehumidifier, - at least one controllable voltage tap (20) for a drying appliance configured as a heater, preferably as a heating plate, - at least one controllable voltage tap (22) for a drying appliance configured as a turbine, - at least one data port (24 ) for a humidity sensor and/or temperature sensor, - an output means (26) for outputting messages, - a control unit (28) with which a voltage can be applied independently of one another to the at least one socket controllable voltage (14) for a fan to the at least one controllable voltage outlet (18) for a dehumidifier, to the at least one controllable voltage outlet (20) for a heater and to the at least one controllable voltage outlet (22) for a turbine in function of humidity data that can be provided through the at least one data port (24) for a humidity sensor, relating to the humidity of the air in or on the area to be dried, where the control unit ( 28) is configured to determine air humidity data during the drying of the area to be dried by operating one or more drying apparatus through the data port (24) for the at least one humidity sensor and/or or temperature sensor and to create from them a humidity profile of the area to be dried, after a rest phase with a period of time trest phase of the drying apparatus(es), with the help of the humidity profile humidity created and from a current measured air humidity F after the fa rest, to forecast a future moisture profile by operating one or more of the drying apparatus again and, with the aid of the predicted future moisture profile, outputting a message about a given remaining drying time ttime remaining, once after which a predefinable desired air humidity F must not be exceeded Target humidity of the area to be dried, where the control unit (28) is configured to carry out a procedure for drying, comprising - controlling the intakes (14, 18, 20, 22) to adopt a state with permanently applied voltage to allow continuous operation of one or more connected drying appliances, - during continuous operation, determine, by means of at least one humidity sensor connected to the data port (24), if there is a desired air humidity F after continuous operation, - in case the desired air humidity F is determined after continuous operation inuo, control the voltage taps (14, 18, 20, 22) to carry out a first interval operation for a predefinable period of time tinterval operation and create the humidity profile by creating a total measurement curve of air humidity, by controlling the voltage taps (14, 18, 20, 22) to provide a voltage-free state if, within the total measurement curve, a partial measurement curve indicates a stable value of air humidity within a predefinable time interval and/or if a measured current air humidity <= F interval operation lower limit, and controlling them to provide a voltage if a measured current air humidity >= F interval operation upper limit, - a once the time period tinterval operation has elapsed, check the voltage taps (14, 18, 20, 22) to adopt a voltage-free state to carry out the rest phase during the period time period trest phase - after the time period trest phase has elapsed, measure the current air humidity Fafter the rest phase in or on the area to be dried, - predict a remaining drying time tremaining time required to reach Ftarget humidity on the basis of the total measurement curve created during interval operation and the current measured air humidity Fafter the rest phase, and - check the voltage taps (14, 18, 20, 22) to bring perform a second interval run during the forecast period of time tremaining lead.

Description

DESCRIPTION

Control apparatus for carrying out a method for drying an area to be dried on a construction site, as well as a method

The invention relates to a control apparatus for carrying out a method for drying an area to be dried of a construction site, as well as to the corresponding method.

When completing construction work on new buildings, when rehabilitating old buildings and, in particular, when repairing moisture damage, for example caused by broken water pipes or accumulation of moisture due to insufficient ventilation, drying devices are used. In this regard, the areas to be dried of the construction site, for example walls, cavities or the air inside rooms closed by walls, are normally dried because moisture-laden air is evacuated or dried. As a rule, heating-drying apparatuses are used in this connection in order to allow the heated air to absorb a large amount of moisture. The heated air is removed and replaced by drier air and/or its moisture content is reduced by drying apparatus, such as dehumidifiers, and used to reabsorb moisture from the area to be dried.

US 2011/167670 A1, US 2005/285748 A1, DE 102017 108537 A1 and WO 2016/142347 A2 disclose drying methods and control apparatus for carrying out a drying method according to the state of the art.

These drying procedures consume a lot of energy. Drying apparatuses that are powered by electricity normally have to be operated for days or even weeks to ensure sufficient satisfactory drying, and therefore entail high electricity costs.

For this reason, systems designed to ensure efficient drying have been proposed. For example, the published German patent application document proposes a system and a method for drying insulating layers of floors with the vacuum method. According to claim 1, this comprises a compressor with at least two suction openings, through which water is transported to a water separator coupled to the compressor, the air being sucked from the insulating layers located under a floor through from the at least two suction openings to drying air hoses connected to them. A humidity sensor for determining the air humidity of a volumetric flow of suction air and a flow control unit for regulating the volumetric flow of suction air are provided. Depending on the determined air humidity, a regulation unit of the flow control unit opens or closes individual volumetric suction air flows. In this case, the humidity sensor measures the air humidity in each case in one of the suction air volume flows successively at predetermined measuring intervals. Also mentioned in claim 1 is a pre-programmed drying interval. The disadvantage in this regard is the fact that the system is set for this pre-programmed drying interval.

The object of the invention is to provide efficient devices and methods for drying.

The invention follows from the features of the independent claims. Further developments and advantageous developments are the subject of the dependent claims, the invention not being limited to the independent and dependent claims, but individual features mentioned in each case therein or other features mentioned in the description can also be combined.

The object is achieved, in a first aspect, by a control apparatus for carrying out a method for drying an area to be dried of a construction site, for example a building, masonry, a cavity or a tunnel, comprising the control unit: at least one mains plug for supplying voltage to the control unit, at least one controllable voltage socket for a drying unit designed as a fan, at least one controllable voltage socket for a drying unit designed as a dehumidifier , at least one controllable voltage outlet for a drying appliance configured as a heater, at least one controllable voltage outlet for a drying appliance configured as a turbine, at least one data port for a humidity sensor and/or a temperature sensor temperature, an output means for outputting messages, a control unit with which a voltage can be applied independently of one another to the at least one controllable voltage tap p for a fan, at least one controllable voltage tap for a dehumidifier, at least one controllable voltage tap for a heater and at least one controllable voltage tap for a turbine based on humidity data relative to the air humidity in or on the area to be dried, which may be provided through the at least one data port for a humidity sensor. In this regard, the control unit is configured to determine humidity data during the drying of the area to be dried by operating one or more drying apparatus through the data port for the at least one humidity sensor and to create from them a humidity profile of the area to be dried, after a rest phase with a period of time trest phase of the drying apparatus(es), with the help of the created humidity profile and a measured current air humidity F after the rest phase, to forecast a future humidity profile by operating one or more of the drying apparatuses again and, with the help of the predicted future humidity profile, to output a message about a time remaining drying time determined remaining time, after which a desired air humidity of the area to be dried is no longer to be reached.

Non-limiting examples of fans are diagonal fans, tangential fans, in particular axial fans and/or centrifugal fans, known per se in the art. Fans serve to convey or circulate air, for example, to exhaust moisture laden air from an area to be dried or to apply lower moisture air to an area to be dried.

Non-limiting examples of dehumidifiers are those based on the absorption of the water vapor that constitutes the humidity of the air in hygroscopic liquids, the absorption of the corresponding water vapor on absorbent agents, and/or in particular dehumidifiers that reduce the humidity of the air by condensing the water vapor contained in the air. The condensate can, for example, be collected in a collection container or can be discharged via a hose connection.

Non-limiting examples of heaters are heaters that work through Peltier elements, preferably heaters that work through heating filaments, and especially preferably heating plates such as infrared radiators.

Turbines are used in particular to apply air to the cavities for drying and allow controlled airflow despite the high flow resistance in the cavity.

When in this document we speak of at least one outlet for a specific dryer, this means that there is, for example, a single outlet for said dryer, or two outlets to provide a power supply. voltage for two such drying apparatus, or an additional voltage tap for any additional drying equipment. According to special refinements, there are voltage taps for one or two fans, preferably for one fan, voltage taps for one or two dehumidifiers, preferably for one dehumidifier, voltage taps for one to five heaters, and voltage taps for one or two turbines, and for any combination of the aforementioned options. Each of the voltage taps can be controlled in such a way as to establish whether a voltage is applied to a respective voltage tap, as a result of which a drying apparatus connected to it will be in operation, or if no voltage is applied to it. voltage, i.e. it is in a voltage-free state, so a drying appliance connected to it will not be in operation. It is possible to apply voltage to the voltage taps independently of each other. If a voltage is applied to all voltage taps, then all connected drying appliances will be in operation, but it can also be provided that not all, but selectively only individual voltage taps or some of the voltage taps are on. supplied with a voltage, so that only those drying appliances connected to these voltage outlets will be in operation. The power outlets are individually labeled to identify the type of drying appliance for which each one is intended. Compared with conventional drying systems, in which the drying apparatus is connected to special control boxes both through power lines and control lines, with the overall operating capacity being provided through the power lines and establishing in fact through corresponding control commands of the control lines whether the respective drying device should be in operation or out of operation at a given time, the control apparatus presented here allows a use free from such restrictions. System-compatible control lines are not required; on the contrary, any apparatus can be connected and put into operation, as long as it is simply guaranteed that the apparatus will be in operation when a voltage is applied to the voltage tap used, that is, when a voltage tap has voltage applied.

At least one data port for a humidity sensor is to be understood as meaning that there are one or more data ports for a corresponding number of humidity sensors, to which the measurement results of the humidity sensor or humidity sensors are transmitted. . Correspondingly, it applies to the at least one data port for a temperature sensor that there are one or more data ports for a corresponding number of temperature sensors. For example, ports are provided for one, two, three or four humidity sensors and/or temperature sensors. Preferably, humidity sensors are connected to the port or ports which provide both data on the measured air humidity and data on the measured temperature. The air humidity data can be absolute air humidity data, but is preferably relative air humidity data, so that relative air humidity can always be used as the basis for all control devices or procedures. described herein in corresponding embodiments or improvements, if desired, when reference is made herein to air humidity in general. The preferred simultaneous recording of temperature data serves, in particular, to document the temperature profile during drying. According to a particular improvement, the at least one data port is provided for a sensor that is both a humidity sensor and a temperature sensor, according to another improvement, the data port is provided for a humidity sensor. The data port is correspondingly configured to recognize data from a humidity sensor as humidity data and to recognize data from a temperature sensor as temperature data.

The concept of area to be dried is obvious from general technical knowledge. For example, when drying a room, the entire air mass of the room in question can be understood as the area to be dried, which can take its moisture from anywhere in the room. In the case of wall drying, an entire wall or part of a wall can be understood as an area to be dried, in particular, of course, in this connection it can be treated as areas in which an increase in humidity can be ascertained, for example, as a result of local cooling, caused, for example, by cold bridges, or by damage to water pipes. In the case of drying cavities, for example, the walls of the cavities, the air masses that are in the cavities or parts of the cavity can be understood as areas to be dried.

The concept of positioning on or in the area to be dried also follows from general technical knowledge. For example, in the case of wall drying, the person skilled in the art will try to take the humidity measurement in the immediate vicinity of the respective wall, for example at a distance of 0 to 100 cm, for example 0 to 20 cm, such as about 1 to 10 cm, in the case of cavity drying, in the wall or walls surrounding the cavity, or within the air mass enclosed by the cavity, or in the case of room drying, in the air surrounded through the walls of the room. It is understandable that the claim about the success of drying in the area to be dried is more significant the closer the humidity of the air to the area to be dried is determined.

Drying takes place by operating one or more of the drying apparatus, for example by circulating the air by means of one or more fans and dehumidifying the circulating air by means of one or more dehumidifiers, and/or by heating the area to be dried. to be dried by means of one or more heaters, or the areas to be dried by means of one or more heaters, in order to promote a transfer of moisture from the area to be dried to the surrounding air. One humidity sensor can be provided for an area to be dried or, alternatively, several humidity sensors, from whose measured values a calculation is made to compensate for local fluctuations or to compensate for the failure of a humidity sensor. The calculation can be an average, for example. Alternatively, the control unit can be used to dry several areas to be dried which are separate from each other, one or more humidity sensors can in turn be assigned to each area to be dried.

The control unit of the control device is configured to determine the humidity data during the drying of the area to be dried, possibly including several areas to be dried, by means of the at least one humidity sensor, which drying it is carried out by operating one or more of the drying apparatus, and, on the basis of these determined humidity data, to create a humidity profile of the area to be dried. For example, humidity data from the at least one humidity sensor is collected continuously, or at discrete times, eg, anywhere from one measurement per minute to 120 measurements per minute.

After the corresponding drying, a rest phase is foreseen with a period of time trest phase of the drying apparatus(es). During drying, within the framework of balancing, moisture is transported from the walls constituting or surrounding the area to be dried into the air adjacent to the walls, and is released into this air, which is why the air contact surfaces of the walls will have dried relatively well compared to the deeper layers of the walls. The period of time trest phase is dimensioned sufficiently to allow a migration of moisture from said deeper layers, preferably to achieve complete equilibrium. Alternatively or additionally, the time period trest phase is dimensioned sufficiently to allow the temperature, which normally rises during drying when the drying apparatus(es) are in operation, to drop to the normally prevailing temperature. As a result, a statement about the success of the drying becomes possible, which is preferred in practice, in particular when using the indication of relative air humidity.

The control unit is also configured so that, once the period of time trest phase has elapsed, through one or more measurement values, provided by one or more humidity sensors to the corresponding data ports, to establish as based on a current measured air humidity F after the rest phase. On the basis of this current air humidity measured F after the rest phase and the created humidity profile, the control unit can forecast a future humidity profile to be expected when one or more of the drying devices are put back into operation.

For example, it can be determined through the created humidity profile by which percentage the humidity of the area to be dried has decreased, for example the relative humidity, per day or another unit of time during the operation of the drying apparatus(es). . Consequently, on the basis of the same decrease, corresponding to a general slope of the total measurement curve, the future humidity profile can be forecast when the drying apparatus(es) are put into operation again.

The control unit is configured to output a message about a determined remaining drying time tremaining time with the aid of this predicted future humidity profile, after which a desired air humidity is not to be exceeded, preferably not to be reached. Ftarget moisture of the area to be dried or on the area to be dried. The determination of this remaining drying time tremaining time takes place exclusively by the control unit, thus no data analysis by a human operator is required. Advantageously, this means that the control unit makes any evaluation work with regarding the drying that has taken place by a human operator of the control apparatus. Rather, the control device can be used autonomously and makes it possible, as soon as the remaining drying time tremaining time has been determined, a basis for further planning of the use of the devices on or in the respective construction site. eg in a new area to be dried or on another construction site. The remaining drying time ttime remaining can be specified as the period of time to elapse, for example in days, hours and/or minutes, although indications of an absolute date and/or time by which the drying will be completed are also included. drying.

The control unit is implemented, for example, as an electronic circuit board and/or as a microprocessor with appropriate software for performing the tasks mentioned herein, through which the processing of the received data takes place in each case of the humidity sensor and/or temperature sensor as well as the control of the voltage taps to provide a state with applied voltage or a state without voltage. In corresponding developments it is provided that the type of drying device provided for a respective voltage tap is stored in the control unit. Accordingly, by controlling a respective voltage tap, an apparatus capable of achieving a desired effect can be turned on or off. For example, a drying appliance configured as a fan can be operated optionally by controlling a corresponding voltage tap if better air circulation is desired, or a drying appliance configured as a dehumidifier if it is desired to remove moisture from the air, or a drying apparatus configured as a heater, if a temperature increase is desired, or a drying apparatus configured as a turbine, if air transport in a cavity is desired.

The outlet means can be selected by the person skilled in the art as technical solutions generally known in the art. For example, the output means may comprise an arrangement of control lights, where each control light is assigned a meaning, for example a control light for the meaning "drying completed successfully", and/or it may comprise a numeric or alphanumeric digital display, and/or a screen, in particular a touch-sensitive screen. In particular when it is designed as a display, depending on the corresponding design of the control apparatus, it is possible to display a large amount of information through the output medium, which can be selected independently of each other, according to non-limiting examples, among the current air humidity, if applicable, the respective air humidity measured by a corresponding number of humidity sensors at different points; a moisture profile over time; the temperature measured at one point or the temperatures measured at several points; the total energy consumption to date of the used drying apparatus or of the used drying apparatuses, the energy consumption of the individual drying apparatuses; total energy consumption or individual energy consumption over time; error messages; messages about the success of drying, messages about the operating phases of the drying apparatus, error messages and the like.

According to the invention, the control apparatus is configured to carry out a drying procedure with the characteristics mentioned below. This method comprises controlling the voltage taps to adopt a state with voltage permanently applied to allow the continuous operation of one or more connected drying apparatuses, in addition, during continuous operation, determining, by means of the at least one humidity sensor connected to the data port, if there is a desired air humidity F after continuous operation, in addition, in case the desired air humidity F is determined after continuous operation, check the voltage taps to carry out a first operation at intervals for a predefinable period of time interval operation and create the humidity profile by creating a total measurement curve of air humidity, and controlling the voltage taps to provide a voltage-free state if, within the total measurement curve, a partial measurement curve indicates a stable value of air humidity within a pr time interval edefinable and/or if a current measured air humidity < Lower limit of interval operation, and controlling them to provide a voltage if a current measured air humidity > Upper limit of interval operation, in addition, after the period of time tinterval operation, control the voltage taps to adopt a voltage-free state for a predefinable period of time trest phase to carry out the rest phase, in addition, after the time period trest phase has elapsed, measure the current air humidity F after the rest phase in or on the area to be dried, in addition, predict a remaining drying time tremaining time needed to reach FTarget humidity on the basis of the total measurement curve created during operation at intervals and the current air humidity measured F after the rest phase, and, in addition, control the voltage taps to carry out a second works at intervals over the forecast period of time t remaining lead time. The creation of the total air humidity measurement curve can take place by continuously measuring the air humidity or by measuring it at discrete instants.

During continuous operation, much of the moisture is removed from the area to be dried. In particular, a substantially continuous transport of moisture from the walls of the area to be dried generally takes place in this connection, which is then released into the adjacent air. In this connection, it is determined by means of at least one humidity sensor connected to the data port whether a desired air humidity F is reached after continuous operation. This desired air humidity F after continuous operation is, for example, a value at which a continuous transport of moisture from a moist wall into the adjacent air is no longer possible, whereby continuing operation of the drying device(s) would lead to to a waste of energy, since the energy used for these drying apparatuses would no longer lead to efficient moisture removal. As another example, the desired air humidity designates a value at which the adjacent air has not yet dried to such an extent that it would fit expect drying damage, eg on wooden objects in a room to be dried. For this reason, it is advantageous to stop continuous drying at this desired air humidity in order to avoid damage to objects in the room or when using a room due to the air being too dry. For such a desired air humidity Fafter continuous operation, a target value FLower limit can be predefined or generically stored by the control device, selected by the user from among a plurality of generically stored values, or entered individually by the user.

If a corresponding desired air humidity F is now determined after continuous operation, a control of the voltage taps takes place in order to carry out a first interval operation for a predefinable period of time tinterval operation. In this connection, a total air humidity measurement curve is created by continuous measurement or measurements at discrete instants, which ultimately allows the humidity profile of the area to be dried to be created. The humidity curve according to this embodiment is therefore based on the air humidity data collected during the first interval operation, but does not include the air humidity data collected during the continuous operation. Interval operation is generally understood to mean that, in contrast to continuous operation, the drying apparatus or drying apparatuses are not operated continuously, which corresponds to a continuous application of voltage to the respective voltage taps, but rather , on the contrary, are also temporarily out of operation.

The decision whether or not the respective voltage taps should have voltage applied depends on the measured values of the respective current air humidity. If a partial measurement curve is determined within the total measurement curve, which indicates a stable value of air humidity within a predefinable time interval, this means that sufficient humidity is no longer supplied from the area to be measured. dry off. Therefore, further operation of the drying appliance(s) is not energy efficient, so the voltage taps are controlled by the control unit in such a way that the voltage-free state is provided and thus drying appliances are put out of service. The determination of a stable value for air humidity is easily possible for the person skilled in the art in view of the disclosure made herein. For example, a stable value can be assumed if all the measured values within a given time interval fall within a predefinable fluctuation range, or a certain percentage of the measured values within the given time interval fall within a preset standard deviation. Another example is a partial measurement curve in which only a minimal decrease in moisture is observed within a given time interval, i.e. a partial measurement curve with a low gradient when plotting the measured moisture against the weather. The corresponding specifications can be predefined or selected as generic values in the control device, or can be entered by an operator. Consequently, if a partial measurement curve is determined within the total measurement curve, which indicates a variable humidity value within a predetermined time interval, in particular a decreasing humidity value with a negative gradient still acceptable when the measured moisture is plotted against time, this indicates that moisture is still being efficiently removed from the area to be dried and it makes sense to continue to operate the drying apparatus(es). Consequently, the voltage taps are controlled in such a way as to provide a voltage which in turn leads to the operation of the drying apparatus(es) connected thereto. As an alternative and/or in addition to the evaluation of a partial measurement curve within the total measurement curve, a check can be provided as to whether a current air humidity value corresponds to a predefinable value F Lower limit of interval operation or is below this. In this case, the voltage taps are also controlled in such a way that the voltage-free state is provided. The interval operation lower limit value F may be predefined as a generic value by the control unit, or as a series of selectable generic values, or may be predefined by the user of the control apparatus. Examples of FLower range operating values used in practice are 28% to 32% humidity, eg about 30% humidity.

Control of the voltage taps to provide a voltage takes place if the current measured air humidity is equal to or greater than the air humidity F Upper limit of interval operation. The value for F interval operation upper limit may again be predefined as a generic value by the control apparatus, or as a series of user selectable generic values, or may be predefined by the user of the control apparatus. According to a further development, the value for the air humidity F upper limit of interval operation can be specified directly as air humidity, for example as relative air humidity. According to a further refinement, F upper limit of interval operation can also be expressed indirectly, for example, as a percentage deviation of F lower limit of interval operation, or as a percentage deviation of air humidity, in particular relative air humidity, which corresponds to the stable value at which the voltage tap control was triggered to adopt the voltage-free state. Examples of absolute values F upper limit of interval operation are in the range of 35% to 38% of air humidity, or in the range of 8% to 15% upward deviation compared to the stable value of the humidity of the air or FLower limit of interval operation, with respect to the respective numerical value of the indication. For example, for interval drying, it can be provided that the operation of the drying apparatus or drying apparatuses is interrupted by a control to assume the tension-free state if the humidity of the air, in particular the relative humidity of the air , is in the range of 28% to 32%, and that operation is resumed by control to assume a voltage-applied state if the humidity of the air, in particular the relative humidity of the air, is in the range of 35 % to 38%.

The interval operation takes place during a period of time tinterval operation, for which corresponding values may be stored in the control device or may be entered by the operator. For example, the operator may make assumptions about what period of time tinterval operation is reasonable in view of the degree of humidity of a given area to be dried in each case. Examples of time periods that make sense in practice interval operation are in the range from one day to several weeks, for example from one day to 56 days, such as, for example, from two days to 48 days, for example from three days to 35 days, or from 4 to 28 days, or from 5 to 21 days, from 6 to 14 days, from 6 to 10 days, such as, for example, from 7 to 8 days. Interval operation provides a very efficient procedure for removing moisture. A large part of the moisture was removed in the previous continuous operation, and the first interval operation allows further removal of the remaining moisture in a time-optimized and energy-optimized manner. By controlling the voltage tap(s) to adopt a voltage-free state, energy is efficiently saved as soon as the respective partial measurement curve shows that any additional energy expenditure to run the drying appliance(s) would only lead to removal of a small proportion of additional moisture. Since only a small proportion of the moisture could be removed with a high expenditure of energy, further operation of the drying apparatus(es) would be energy inefficient. If the measured air humidity increases again, so that a control of the voltage taps to adopt a voltage-applied state takes place, then moisture is removed again without unnecessary waiting times. This represents a significant optimization of the drying time, which is advantageous in the sense that, on the one hand, moisture damage on or in the area to be dried is avoided, since the exposure to moisture is not unnecessarily prolonged. , which could, for example, counteract the formation of mold and, on the other hand, the control apparatus and the drying apparatus are quickly available for new uses.

Once the period of time toperation at intervals has elapsed, it is followed by a period of time trest phase in which moisture transport takes place from the deeper layers of the walls towards their surfaces to seek an equilibrium between the nearby layers to the dry surface and the deeper layers that still contain more moisture, and/or in which the temperature equalizes, which have normally increased at least during the operation of the drying apparatus(es) during interval operation, to temperatures normal environment.

After the period of time trest phase has elapsed, the current air humidity F after the rest phase in or on the area to be dried is measured by means of the humidity sensor(s). Based on the overall measurement curve created during interval operation and the current measured air humidity, it is now possible to predict a remaining drying time tremaining time required to reach a desired air humidity FTarget humidity during a subsequent second interval operation . For example, via the total slope of the total measurement curve it can be predicted what the moisture profile will look like in the second interval run. The predefinable desired air humidity FTarget humidity can be stored in the control unit in the form of one or more generic values, with the user optionally selecting one value from among several stored values, or entered by a user, for example as desired relative air humidity. In practice, depending on the climatic zone in which the construction site is located, experience has shown that values of 70% to 77% humidity are desirable, in particular relative air humidity, for example 75% humidity , in particular relative humidity of the air. With regard to the control of the voltage taps to adopt the voltage-free state or the voltage-applied state as a function of the actual measured air humidity, what has been said for the first interval operation applies. Accordingly, the taps are controlled to perform a second interval operation for a predicted period of time tremaining time. If the forecast for the remaining drying time tremaining time gives the value zero, the control unit is configured to end the drying procedure, controlling the voltage taps to provide a voltage-free state and consequently skipping the second operation. at intervals.

According to a refinement, it can be provided that the predicted remaining drying time tremaining time is supplemented by an additional period of time as a safety reserve in order to more reliably ensure that the desired air humidity FTarget humidity is reached after the time has elapsed remaining drying time tremaining time.

According to a particular improvement, during interval operation it is provided that the voltage taps are controlled to provide a voltage-free state if, within the total measurement curve, a partial measurement curve indicates a stable value of the humidity of the air within a predefinable time interval, provided that a currently measured air humidity > Lower limit of interval operation. In this respect, the decisive criterion for switching off the drying apparatus(es) is that an air humidity is reached at which energy-efficient further drying is no longer possible. However, this condition only applies if the currently measured air humidity does not fall below an air humidity FLower limit of interval operation. This air humidity FLower limit of interval operation can be set to prevent excessive drying of objects, for example. On the other hand, if the current measured air humidity is less than FLower limit of interval operation, that is, current measured air humidity < FLower limit of interval operation, then a control of the voltage taps takes place to provide the state stress-free, even if the partial measurement curve does not yet indicate a stable value for air humidity, ie even if energy-efficient additional drying is still possible.

According to a common case, the measured air humidity fluctuates between a stable lower value and F upper limit of the interval operation- if the upper F limit value of the interval operation is reached, 6ntonC6S the COntTO1 d6 takes place the voltage tap or voltage taps to provide a voltage so that the connected dryer(s) are in operation, after which the humidity of the air will decrease. As soon as a partial measurement curve indicates a stable value for air humidity, the air humidity has dropped so low that energetically reasonable drying is no longer possible, whereby the voltage taps are controlled to provide a noise-free state. strain. In the voltage-free state, the drying apparatus or drying apparatuses are not in operation, so that the humidity of the air increases again until the interval operation upper limit value F is reached. The parameters hereby taken as a basis for the procedure for the s6cad^ such as Fafter continuous operation, interval operation, ttime remaining, Finterval operation lower limit, Interval operation Fupper limit, rest phase, FTarget humidity They provide, as a whole, according to parameters, information that can be displayed through the output medium.

According to an improvement, the control apparatus is configured to additionally carry out the following step in the method for drying - after the predicted period of time tremaining time has elapsed, finish the second interval operation, and in case that the current air humidity < Ftarget humidity, outputting a message through the output means that the drying has been completed successfully, and in case the current air humidity > Ftarget humidity, outputting an error message. In the first case, a user receives the communication that the drying has been completed successfully and that consequently, for example, the control apparatus can be used for a new task. In the last mentioned case, the user is informed that the drying was unsuccessful and can, for example, consider whether further drying is necessary or whether the causes of the unsuccessful drying must first be eliminated, for example, moisture due again to leaking water pipes. Alternatively, in case the drying has not been successful, it can be provided that the control device, after inserting a new rest phase with a rest phase time period, initiates a third interval operation and issues a message corresponding to via the outlet means, where if again the drying is unsuccessful, as specified by a user or by generic settings on the control device, an additional rest phase and operation can be provided or re-inserted. additional intervals or issue a new error message. If additional rest phases and interval runs are carried out, it is provided, according to a refinement, to issue an updated remaining drying time tremaining time on the basis of the updated total measurement curve, created during the previous interval run , and an updated air humidity after the additional rest phase Fafter the rest phase.

According to a preferred embodiment, the control device comprises a remote data transmission module with which a determined remaining drying time tremaining time and/or a message can be transmitted to a data receiver. In this connection, each message or everything that is output via the output means of the control apparatus can also be transmitted to the data receiver via the remote data transmission module. The remote data transmission module can be, for example, a mobile phone, with which a transmission to a second mobile phone configured as a data receiver is possible. Another example is a WLAN connection or an Internet connection, which in turn provides a telephone connection, for example, or data transmission to Internet-connected software. In this way, remote monitoring of the control device is advantageously possible without the user of the data receiver having to carry out any analysis work, but receiving all the necessary information from the control device. The possibility of ensuring data transmission between the remote data transmission module and the data receiver is also provided, if necessary, by means of intermediate stations. If, for example, the control device with its remote data transmission module, for example a mobile phone, is located in a drying out basement room, a connection to the mobile phone network, which would not be accessible from the basement room, can be guaranteed through a suitable intermediate station, such as a repeater, for example. Therefore, the subject of the application is also a system comprising a control apparatus as described herein and a data receiver, optionally comprising software running thereon.

According to one embodiment, it is provided that the mains plug is associated with a personal protection switch integrated in the control device. As usual in the art, personal protection switch is understood as residual current circuit breakers, for example to protect against residual currents when the mains plug of the control device is supplied by a domestic electrical supply system of a building or a system construction electrical supply of a construction site. Advantageously, this eliminates the need to have to switch separate personal protection switches between the power source of the domestic electrical supply system or the construction electrical supply system, on the one hand, and the control apparatus.

According to one embodiment, provision is made for the control device to further comprise an electric meter, with which the sum of the electrical energy drawn from the at least one controllable voltage outlet for a fan can be recorded, from the at least least one controllable voltage outlet for a dehumidifier, at least one controllable voltage outlet for a heating plate and at least one controllable voltage outlet for a turbine. As already explained, the drying of construction sites is an energy-intensive process. If, as hitherto, the drying apparatuses are connected separately to the voltage sources, it is necessary to interpose individual electric meters in each case and manually determine the sum total of the electrical energy consumed. The control device described in this document with the electric meter included in it, it constitutes an important simplification, since by means of the electric meter it is possible to register and indicate the total sum of the electrical energy consumed, for example in watt hours or kilowatt hours as usual. Optionally or alternatively, it can also be provided that each individual controllable voltage outlet has an individual electrical meter associated with it, or that the electric meter optionally shows the sum total of the electrical energy consumed, or the electrical energy consumed broken down by individual controllable voltage outlets , or by groups of outlets, such as, for example, outlets provided for fans, and/or outlets provided for heaters, and/or outlets provided for turbines, and/or outlets provided for dehumidifiers. The total sum of the electrical energy consumed determined for the last momentary time or once the drying is finished, or the amounts in each case broken down of the electrical energy consumed, can also be the subject of messages that can be emitted by the output medium and/or or they can be transmitted to a data receiver through a remote data transmission module. Advantageously, in particular when the momentary total sum is output or transmitted, the user is given an overview of the drying evolution.

According to one embodiment, the at least one controllable voltage outlet for a fan, the at least one controllable voltage outlet for a dehumidifier, the at least one controllable voltage outlet for a heater and/or the at least one controllable voltage socket for a turbine are provided with a locking device with which a plug inserted in the respective socket, and/or the respective socket can be reversibly secured. According to an improvement, an appropriate reversible protection can prevent accidental or unauthorized removal of an inserted plug from the power outlet, which would impair the overall success of the drying process due to the suppression of the affected drying device. According to another improvement, removal of an inserted plug may be allowed, but not unauthorized insertion of a plug, and according to yet another improvement, unauthorized insertion of a plug into a previously unoccupied power outlet. Corresponding blocking devices advantageously prevent the drying process from being disturbed by unauthorized shutdown of one or more drying apparatus and/or the control apparatus being used as a source for unauthorized consumption of electrical energy. Appropriate reversible protections can be implemented, for example, by mechanical locks that are controlled, for example, by key, or by electronic locks that are controlled, for example, by entering a code.

According to one embodiment, the control device comprises input means for inputting a lower Frite target value for an air humidity below which it is not to fall during continuous operation, than a tolerance value , of an upper Frite air humidity of interval operation, of an air humidity Flower limit of interval operation, of a value °b jetiv° Fafter the rest phase, of a value °b jetiv° FTarget humidity for a humidity desired maximum air volume after completion of drying and/or a period of time interval switching to perform interval operation of one or more drying apparatus, and/or for selection of values stored generically in the control apparatus . A user can advantageously enter individual values or make a selection from a large number of values stored in the control device if he does not want to resort to a corresponding generic value stored in the control device. Other inputs that can be made via the input means are settings for data transmission via a remote data transmission module, for example, the frequency of detection and/or transmission of humidity data, and the like. The input means can be easily selected from technical solutions known per se, for example switches, knurled switches for entering multiple values, numeric or alphanumeric keyboards and/or touch-sensitive screens.

According to one embodiment, the remote data transmission module of the control device is configured to receive data from the data receiver, which for its part is now configured as data sender at the same time. This advantageously opens up the possibility of transmitting data via the data receiver, also configured as a data transmitter, for example the above mentioned values for a lower Frite target value for an air humidity below which it is not to fall during continuous operation, a tolerance value, an air humidity FUpper limit of interval operation, a humidity FLower limit of interval operation, a target value Fafter the rest phase, a target value FTarget humidity for an air humidity desired maximum after drying is complete, and/or a time interval tapping to perform interval operation of one or more drying apparatus, and/or make a selection of values stored generically in the control apparatus. This also opens up the possibility of transmitting control data to the control device from the data receiver, also configured as a data sender. For example, the drying procedure to be carried out by the control device, which would normally be started directly at the control device, can be started or interrupted via the data receiver configured as a data transmitter. Thus, on the whole, complete remote monitoring and control of the control apparatus or of the drying process performed therein is possible. In particular, in case messages are issued indicating that the drying has not been successfully achieved, there is the possibility to decide via the corresponding input on the data receiver configured as data sender whether the drying procedure should be continued or interrupted. . Examples of additional control data are instructions for automatic control of humidity and/or temperature sensors, settings for data transmission, eg, the frequency of detection and/or transmission of humidity data, and the like. Non-limiting examples of data receivers that are also configured as data transmitters are mobile phones, which also include smartphones that communicate with the remote data transmission module of the control device, or devices, for example computers , who communicate with the module for remote data transmission via a WLAN connection or an Internet connection. For example, there are suitable applications installed on mobile phones, or suitable programs on computers, to send and/or receive data and/or for display. Therefore, also objects of the invention described herein are systems comprising a control device such as the one described here as well as a data receiver that is also configured as a data sender, for example, a mobile phone or a computer, on which optional applications or programs are installed for sending and/or receiving data and/or displaying it.

According to one embodiment, provision is made for the control device to have a second mains plug for supplying voltage, via which the electrical power that can be supplied by the control device and can be called up via it can be doubled. of the voltage taps. In particular, this ensures that sufficient electrical power is provided when a large number of drying apparatuses are connected to the available power outlets. According to a further development, it is provided that when only one mains plug is used to supply voltage to the control device, the thus provided voltage is provided for all voltage sockets. If a second additional mains socket is used, provision is made in this connection that, via an automatic relay, a first group of voltage sockets is supplied via the first mains socket and a second group of voltage sockets is supplied via the second mains socket. In particular, the option is provided that when only one mains socket is initially used and several drying appliances are connected, which exceed the electrical power that can be provided through one mains socket, a fuse is tripped and a a corresponding message through the output medium. In order to provide sufficient electrical power, a second mains socket would be plugged in, where, through the relay circuit already described above, the electrical power that can be provided via the first mains socket would be fed to a first power supply circuit with correspondingly assigned voltage outlets and that through the second mains plug would be fed into a second electrical circuit with correspondingly assigned voltage outlets, where the first circuit and the second circuit would be separate. The option is also provided for more than two mains plugs to be provided for supplying voltage to the control device, in particular three mains plugs, in order to be able to tap, for example, all three phases of a three-phase alternating current. According to a refinement, if there are several dryers of the same type, for example several dehumidifiers, the individual dryers are assigned to different electrical circuits.

In all embodiments and further developments of the control device described herein, it can be provided that, before checking the voltage taps before a first operation of one or more drying devices connected to them, for For example, a continuous operation or a first interval operation, the current air humidity is measured by the humidity sensor, then continuous operation is started as soon as the humidity sensor provides a stable reading. In the cold season of the year in particular, it may be the case that a humidity sensor is used that was previously exposed to very low ambient temperatures, for example during transport to the construction site, and is now placed in the construction site to be dried, where there is a significantly higher temperature. Until the humidity sensor adapts to this present temperature, it will provide useless humidity values. A stable measured value can be recognized by the fact that a constant humidity value is displayed within a predefinable fluctuation range if no measures are taken simultaneously to vary the prevailing air humidity and it can be assumed that the air humidity is will keep stable.

In another aspect, the invention relates to an arrangement comprising a control device such as the one described herein, where the at least one data port for a humidity sensor and/or temperature sensor is connected to a humidity sensor and where, in addition to the possible drying devices that can be connected to the respective controllable voltage outlets, selectable from among at least one fan, at least one dehumidifier, at least one heater, preferably a heating plate , and at least one turbine, at least one drying device, preferably at least two different devices, are connected to the corresponding controllable voltage outlet. Such an arrangement comprises all the components to be used for a method of drying a construction site.

As already explained, humidity sensors that also function as temperature sensors are preferably used. According to one embodiment, such an arrangement comprises a temperature sensor that is connected to a data port provided for this purpose.

In another aspect, the invention relates to a method for drying an area to be dried of a construction site by means of an arrangement such as the one described herein, comprising: positioning the humidity sensor at or over the area to be dried; furthermore, during continuous operation, determining, using at least one humidity sensor connected to the data port, if there is a desired air humidity F after continuous operation; additionally, if the desired air humidity F is determined after continuous operation, i.e. is actually present, check the voltage taps for a first intermittent operation of the connected dryer/dryers for a period of time. predefinable period of time tinterval operation, where, to create a humidity profile, a total air humidity measurement curve is created by continuous measurement or measurement at discrete instants, and where in the first interval operation are controlled voltage taps to provide a voltage-free state if, within the total measurement curve, a partial measurement curve shows a stable value of air humidity within a time interval predefinable and/or if a current measured air humidity < Lower fulimit of interval operation, and are controlled to provide a voltage if a current measured air humidity > F upper limit of interval operation; furthermore, after the time period tinterval operation of the first interval operation is reached, in case the current air humidity does not exceed a target air humidity Fhumidity, output a message through the output means that the drying is completed. has completed successfully, and end the procedure by controlling the voltage taps to provide a voltage-free state, and in case the current air humidity FTarget humidity is exceeded; furthermore, carrying out a rest phase by controlling the voltage taps to provide a voltage-free state for a predefinable period of time trest phase; furthermore, after the time period trest phase has elapsed, measure the current air humidity F after the rest phase and forecast a remaining time period ttime required to reach FTarget humidity based on the total measurement curve created during the first interval operation, and, in addition, carry out a second interval operation during the predicted period of time tremaining term, as well as, in addition, after the expiration of the predicted period of time tremaining term, ending the second interval operation and, in In case the current air humidity < FTarget humidity, output a message through the output means that the drying is completed successfully, and in case the current air humidity FTarget humidity is exceeded, output a message of mistake.

When talking here about the positioning of the humidity sensor in or on the area to be dried, this also includes the possibility that several humidity sensors are positioned in or on the area to be dried, or that the method concerns several areas to be dried, which are monitored in each case by one or more humidity sensors for their humidity.

In the next method step, during continuous operation, using at least one humidity sensor connected to the corresponding data port, a determination takes place whether a desired air humidity F is present after continuous operation. In this case, the humidity sensor supplies the humidity data and the control unit determines whether a desired humidity is present. The desired air humidity F after continuous operation is, as has already been described analogously with regard to the control device, for example, a value at which a continuous transport of moisture from a damp wall into the surrounding air is no longer possible, therefore that continuing the operation of the drying apparatus(es) would lead to a waste of energy, since the energy used for these drying apparatuses would no longer lead to efficient moisture removal. As another example, the desired air humidity F after continuous operation designates a value at which the surrounding air has not yet dried to such an extent that drying damage would be expected, for example, on wooden objects in a room to be cleaned. dry off.

If a corresponding desired air humidity F is now determined after continuous operation, a control of the voltage taps takes place in order to carry out a first interval operation for a predefinable period of time tinterval operation. In this connection, a total air humidity measurement curve is created by continuous measurement or measurements at discrete instants, which finally allows to create a humidity profile of the area to be dried. As already explained with regard to the control apparatus, by interval operation it is generally understood that, in contrast to continuous operation, the drying apparatus or drying apparatuses do not operate continuously, which corresponds to a continuous application of voltage to the respective voltage outlets, but are also temporarily out of operation. The decision whether or not to apply voltage to the respective voltage taps is made by analyzing the partial measurement curves within the total measurement curve. If a partial measurement curve is determined within the total measurement curve, which indicates a stable value of air humidity within a predefinable time interval, this means that sufficient humidity is no longer supplied from the area to be measured. dry off. Therefore, further operation of the drying apparatus or drying apparatuses is not energy efficient, whereby the voltage taps are controlled by the control unit in such a way that the voltage-free state is provided and therefore Therefore, the drying apparatus or drying apparatuses are put out of service. The determination of a stable value for air humidity is easily possible for the person skilled in the art in view of the disclosure made herein. For example, a stable value can be assumed if all the measured values within a given time interval fall within a predefinable fluctuation range, or a certain percentage of the measured values within the given time interval fall within a preset standard deviation. The corresponding specifications can be predefined or selected as generic values in the control device, or can be entered by an operator. Therefore, if a partial measurement curve is determined within the total measurement curve, which indicates a variable value of air humidity within a definable time interval, in particular a decreasing value of air humidity, this indicates that moisture is still efficiently removed from the area to be dried and it makes sense to continue to operate the drying apparatus or drying apparatuses. Consequently, as already explained with respect to the control apparatus, the voltage taps are controlled in such a way as to provide a voltage which in turn leads to the operation of the drying apparatus(es) connected thereto.

As regards the period of time tinterval operation, reference can be made analogously to the explanations given in connection with the control device.

After the period of time tinterval operation has elapsed, a period of time trest phase follows in a further process step, in which moisture transport from the deeper layers of the the walls to their surfaces and/or the temperature, which has normally increased at least during operation of the drying apparatus(es) during interval operation, is equalized to normal room temperatures.

In a further method step, after the period of time t rest phase has elapsed, a measurement of the current air humidity in or on the area to be dried takes place by means of the humidity sensor(s). On the basis of the overall measurement curve created during interval operation and the currently measured air humidity, it is now possible to predict a remaining drying time tremaining time required to achieve a desired air humidity FTarget humidity during a subsequent second interval operation. For example, via the total slope of the total measurement curve it can be predicted what the moisture profile will look like in the second interval run. Alternatively or additionally, the sequence of partial measurement curves, which indicate a stable value of air humidity, can be used to predict the remaining drying time tremaining time, since these partial measurement curves are expected to be at distances shorter each other as the drying of the area to be dried increases. According to a development, the remaining drying time tremaining time is also output via the output medium.

In a further process step, therefore, a control of the voltage taps takes place in order to carry out a second interval operation for a predicted period of time tremaining time. If the forecast for the remaining drying time tremaining time gives the value zero, the control unit is configured to end the drying procedure, controlling the voltage taps to provide a voltage-free state and consequently skipping the second operation. at intervals.

As already explained with regard to the control unit, according to a further development it can be provided that the predicted remaining drying time tremaining time is supplemented by an additional period of time as a safety reserve in order to more reliably ensure that the desired humidity is reached. desired air temperature FTarget humidity after the remaining drying time tremaining time has elapsed, for example to account for forecast inaccuracies.

After the predicted period of time tremaining time has elapsed, a completion of the second interval operation takes place by controlling the voltage taps to provide a voltage-free state and a current air humidity measurement, and in case the current air humidity < Ftarget humidity, a message output through the output medium that the drying has been successfully completed, and in case the current humidity Ftarget humidity is exceeded, an error message is issued , for example via the output means and/or a remote data transmission module.

As already explained in connection with the control apparatus, in the event that, after the predicted period of time tremaining time for the remaining drying time has elapsed, the current air humidity is higher than FTarget humidity, it can be foreseen, accordingly, according to a refinement, that after the error message is issued, a new sequence of a new rest phase with the time period trest phase, a measurement of the current air humidity F after the rest phase is carried out and a new operation at intervals. The remaining drying time tremaining period for this new interval operation can be predicted in this connection on the basis of a total measurement curve created during the previous interval operation and the currently measured air humidity F after the rest phase. This sequence can be repeated any number of times, as long as there is no predefinable upper limit to the number of sequences. If such an upper limit exists and if it is reached, an error message is issued that the current air humidity exceeds the predefinable value for the desired target humidity FTarget humidity and no further interval operation is performed. If such an upper limit is not reached or does not exist, then, for each new sequence, the in each case valid time period tremaining time can be output on the output medium and/or transmitted to a data receiver via a transmission module. remote transmission of data if applicable.

According to one embodiment of the method, a desired air humidity during continuous operation is considered to be determined as soon as the currently measured air humidity falls to a lower limit target value F, provided that a target value Fl¡m has been predefined. Lower limit of air humidity, provided that no target value F Lower limit has been predefined, a desired air humidity during continuous operation is considered determined as soon as the measured air humidity remains stable for a predefinable period of time. In case a target value FLower limit has been predefined and the actual air humidity measured before reaching the target value FLower limit remains stable for a predefinable period of time, a desired air humidity during continuous operation is considered to be determined provided that the target value Flower limit does not exceed a predefinable tolerance value, it being valid that target value Flower limit < tolerance value. For example, it may be the case that a very low FLower limit target value has been predefined, for example a significantly lower target value than 60% of air humidity, in particular relative air humidity, such as for example a 40% air humidity, which may not be realistic to achieve for continuous operation. In this case, a tolerance value can be predefined, for example in the range of 58 to 62% air humidity, in particular relative air humidity, such as 60% air humidity. If a stable value is now set for the current measured air humidity above the target value FLower Limit and the target value FLower Limit is less than the tolerance value, it is clear that the target value FLower Limit may have been set too low. unrealistically, so it can be estimated that the stable value of the Actual measured air humidity has reached the desired air humidity F after continuous operation.

For all the procedures described in this document, it can be provided that, before checking the voltage taps for continuous operation, the current humidity of the air is measured by means of the humidity sensor, with continuous operation then starting as soon as possible. as the humidity sensor provide a stable measurement value. If several humidity sensors are used, continuous operation is only started when all humidity sensors supply stable measured values. In the cold season of the year in particular, it may be the case that a humidity sensor is used that was previously exposed to very low ambient temperatures, for example during transport to the construction site, and is now placed in the construction site to be dried, where as a rule there is a significantly higher temperature. Until the humidity sensor adapts to this present temperature, it will provide unusable air humidity values. A stable measured value can be recognized by the fact that a constant humidity value is displayed within a predefinable fluctuation range as long as no measures are taken simultaneously to vary the prevailing air humidity and it can be assumed that the air humidity will remain stable.

For all the methods described herein, it may be provided that one or more messages may be output via the output means of the layout control apparatus. A non-limiting example of a corresponding message is the message that the humidity sensor and/or the temperature sensor are defective. A corresponding defect can be assumed, for example, if the humidity sensor or the temperature sensor does not show any measured value or always shows the same measured value despite changing ambient conditions. Another non-limiting example is the message that no drop in air humidity measured during continuous operation of the drying apparatus or drying apparatuses can be ascertained. A possible reason for this message could be a replenishment of humidity, so the drying will not be successful. Another possible cause would be a defect in one or more of the drying apparatus being put into operation and/or the humidity sensor(s). Another non-limiting example is the message that the predefinable tolerance value is exceeded during continuous drying. This message also indicates the fact that a humidity reset might be taking place, or that one or more of the drying apparatus, or one or more of the humidity sensors, is faulty. Another non-limiting example is the message that during wall drying there is an atypical evolution of a temperature curve or humidity curve during continuous drying. This could be due to a faulty temperature sensor or humidity sensor, a faulty drying apparatus, and/or an unidentified additional source of heat or cold in the area to be dried. Alternatively or additionally, these corresponding messages are transmitted through a remote data transmission module in the event that the procedure is carried out with an arrangement comprising a control device which in turn comprises a corresponding remote data transmission module. data. The messages advantageously draw the operator's attention to the fact that there is a problem with the drying process at an early stage. This increases the probability that the problem will be resolved quickly and that the drying will not be useless because it is inefficient.

According to an embodiment of the method, the area to be dried is a wall, the humidity of the air on the wall being able to be measured through the at least one humidity sensor and being connected to the controllable voltage outlets of the apparatus control as drying devices at least one heater to heat the wall to be dried and a dehumidifier. Advantageously, this represents an efficient combination to carry out drying, ensuring that the procedure described herein is carried out. Alternatively, at least one heater for heating the wall to be dried, a dehumidifier as well as a fan are connected. This makes it possible, in particular, to dehumidify construction sites that are more laden with moisture and/or in which the moisture removed from the air cannot be evacuated in any other way.

According to one embodiment of the method, the area to be dried is a cavity, the air humidity of the air in the cavity being able to be measured through the humidity sensor, and being connected to the voltage taps controllable parts of the control apparatus such as drying apparatus, a dehumidifier for dehumidifying the air, and a turbine for introducing the air dehumidified by the dehumidifier into the cavity. The at least one humidity sensor can be placed directly in the cavity or, alternatively, in an air flow with which the air introduced into the cavity by the turbine comes out again.

According to one embodiment, the area to be dried is a room, with at least one fan for circulating room air as well as a fan being connected to the controllable voltage taps of the control apparatus as drying apparatus. dehumidifier to dry the air in the room, as well as optionally at least one heater to heat the air in the room, and the relative humidity of the air in the room can be measured through the at least one humidity sensor.

The above-described embodiments of wall drying, cavity drying and room drying can be combined with each other as desired. In particular, a combination of wall drying and cavity drying can be provided. In this connection, the wall which simultaneously constitutes a wall of the cavity is preferably dried by wall drying. As an example, it is envisaged that the drying of walls comprises a heating element, for example an infrared panel, with which the wall to be dried is heated, and in addition a dehumidifier, with which the released moisture is separated from the wall. Optionally, a fan can also be provided to ensure better air exchange on the wall heated. The air dried by the dehumidifier can be introduced into the cavity through the turbine and contribute to its drying. The control of wall drying and cavity drying can be coupled with each other, so that, for example, continuous operation, the rest phase and the first interval operation, optionally followed by the second interval operation, are run synchronously. Alternatively, the dryings can be controlled separately, which is easily possible via voltage taps that can be supplied with voltage independently of one another and to which the respective drying apparatuses are connected. For example, during the first interval drying, the voltage taps for supplying the drying apparatus for wall drying can be controlled in such a way that there is a voltage-free state because the current partial measurement curve for wall drying walls indicates a stable value of air humidity. Consequently, it makes sense to put the heater out of operation. At the same time, however, the fan and turbine can be operated to introduce air with stable air humidity into the cavity and continue drying it.

According to one embodiment, the method comprises sending messages to a data receiver by transmission through a remote data transmission module of the control unit. According to a refinement of the method, the remote data transmission module of the control device is designed to receive data from the data receiver, which for its part is now configured as data sender at the same time. This advantageously opens up, as already explained in the context of the control device, the possibility of transmitting data via the data receiver, also configured as a data sender, for example the above mentioned values for a lower Fumite target value for an air humidity below which it must not fall during continuous operation, a tolerance value, an upper air humidity Fumite of interval operation, a lower limit humidity F of interval operation, a °target° value Fafter rest phase, a °target° value Ftarget humidity for a desired maximum air humidity after drying is complete, and/or a period of time tinterval operation for carrying out interval operation of one or more drying apparatus, and/or make a selection of values stored generically in the control device. This also opens up the possibility of transmitting control data to the control device from the data receiver, also configured as a data sender. For example, the drying procedure to be carried out by the control device, which would normally be started directly at the control device, can be started or interrupted via the data receiver configured as a data transmitter. Thus, on the whole, complete remote monitoring and control of the control apparatus or of the drying process performed therein is possible. In particular, in case messages are issued indicating that the drying has not been successfully achieved, there is the possibility to decide via the corresponding input on the data receiver configured as data sender whether the drying procedure should be continued or interrupted. . Examples of additional control data are instructions for automatic control of humidity and/or temperature sensors, settings for data transmission, eg, the frequency of detection and/or transmission of humidity data, and the like. Non-limiting examples of data receivers that are also configured as data transmitters are mobile phones, which communicate with the remote data transmission module of the control device, or devices, for example computers, that communicate with the remote data transmission module. remote transmission of data via a WLAN connection or an Internet connection. For example, there are suitable applications installed on mobile phones, or suitable programs on computers, to send and/or receive data and/or for display. Other advantages, characteristics and particularities will emerge from the following description, in which at least one exemplary embodiment is described in detail, possibly with reference to the drawings. Identical, similar and/or equivalent parts are provided with the same references.

They show:

Fig. 1 a schematic representation of a control device,

Fig. 2 an example result of a drying,

Fig. 3 a schematic flow diagram of a process for drying.

FIG. 1 shows a schematic representation of a control device 10 comprising a mains plug 12 for supplying voltage to the control device. Also shown by way of example is a voltage socket 14 for a fan, two voltage sockets 18a and 18b for two dehumidifiers, three voltage sockets 20a,b,c for corresponding heaters, for example for infrared panels, and two sockets 22a and 22b for two turbines as drying apparatus which can be connected in each case. Furthermore, the control device 10 also comprises, by way of example, four data ports 24a,b,c,d for humidity sensors and/or temperature sensors. Preferably it is a combination of humidity sensors and temperature sensors. An output means 26 serves to output messages, for example messages about drying success, faults, currently measured air humidity and/or predefined target values, and is preferably configured as an input means at the same time, e.g. example in the form of a touch screen. A control unit 28, preferably comprising a microprocessor with corresponding software programming and/or hardware programming, is arranged within the control apparatus 10 and is therefore represented by a dotted line. The control unit 28 directs the control of the voltage taps, processes the data on humidity and/or temperature supplied through the data ports and creates the total measurement curve.

Figure 2 shows an exemplary result of a drying, the time being graphically represented in the x-axis and the relative humidity of the air on the y-axis. The area A between the Y-axis and the first vertical dashed line shows continuous operation of the drying apparatus(es) at the start of drying. The data on the humidity of the air in or on the area to be dried, determined during this continuous operation through the at least one humidity sensor, shows that there is a sustained decrease in the humidity of the air. Towards the end of continuous operation, it is determined by evaluation of the humidity data by the control unit that a desired air humidity is now present, since, despite the drying device(s) being in operation, the humidity of the air practically no longer decreases, so it no longer makes sense from an energy point of view to continue operation.

This is followed by a first interval drying, which lasts for a period of time tinterval operation and corresponds to region B in Figure 2. In this connection it is specified that the stress taps should be controlled for a stress-free state if, within the total measurement curve that extends into the region B, a partial measurement curve is produced which indicates a stable value for the air humidity, ie an air humidity that practically no longer varies. Four partial measurement curves b1, b2, b3 and b4 are shown as an example, within which the slope of the air humidity curve is practically zero, so that no further drying success is achieved in this case despite the drying power applied by the drying device(s). Consequently, at the end of these partial measurement curves b1, b2, b3 and b4, the control unit controls the voltage taps so that they assume a voltage-free state, which is symbolized in figure 2 by a vertical arrow. As soon as the drying appliances are out of operation, the humidity of the air increases accordingly. In the example shown, it is specified by way of example that, after a certain increase in air humidity from the stable value, which was the reason for stopping the operation of the drying apparatus, for example, after After an increase in air humidity by a predefinable percentage, the drying devices start up again by applying the corresponding voltage to the voltage taps. Consequently, the air humidity curve drops again. After reaching the time period tinterval operation, the voltage taps are controlled by the control unit in such a way that a voltage-free state is assumed and this is followed by the rest phase with the time period trest phase, which it is designated region C in Figure 2. During the rest phase, rewetting takes place and/or the temperature equalizes from the temperature prevailing during drying to normal room temperature. Based on the current air humidity measured at the end of the rest phase, the control unit can now predict, based on the slope of the total measurement curve during interval operation, which is represented in region B as an arrow with negative orientation and slope, a remaining drying time tremaining time required during a second interval operation, with which a desired air humidity FTarget humidity can be achieved. The phase of the second interval operation is represented in region D in figure 2.

Figure 3 shows a schematic flow diagram of a procedure for drying. In a method step 100, a moisture sensor is positioned in or on the dried area. This is followed in a method step 150 by continuous operation, in which it is determined using the at least one humidity sensor of the control unit whether there is a desired air humidity F after continuous operation. If this is not the case, continuous operation is continued and the air humidity is further measured and it is determined whether it corresponds to the desired air humidity F after continuous operation. As soon as this is the case, in a method step 200, the voltage taps are controlled for a first interval operation of the drying device/connected drying devices for a predefinable period of time tinterval operation, where, to create a humidity profile, a total air humidity measurement curve is created by continuous measurement or measurement at discrete instants, and where in the first interval operation the voltage taps are controlled to provide a voltage-free state if, within the total measurement curve, a partial measurement curve indicates a stable air humidity value within a predefinable time interval and/or that an air humidity less than or equal to Fl¡m¡ has been reached lower limit of interval operation, and are controlled to provide a voltage if for a measured current air humidity it is greater than or equal to F Upper limit of interval operation. interval ionization.

After the time period tinterval operation of the first interval operation has been reached, in a method step 250, if the current air humidity does not exceed a target air humidity Fhumidity, a message is output via of the output medium that the drying has been successfully completed, and a termination of the process by controlling the voltage taps to provide a voltage-free state in a process step 270, and in case the humidity is exceeded of the current air Ftarget humidity, in a method step 300, a rest phase is carried out by controlling the voltage taps to provide a voltage-free state for a predefinable period of time trest phase. Subsequently, after this period of time t rest phase has elapsed, in a method step 350, a measurement of the current humidity F after the rest phase and a forecast of a period of time t remaining period necessary to reach F target humidity on the basis of the total measurement curve created during the first interval operation. In a method step 400, the second interval operation is carried out during the predicted time period t remaining lead time. After reaching the remaining period of time ttimeout, in a method step 450, a measurement of the current air humidity takes place, and if the current air humidity < Ftarget humidity, in a method step 500 a message is output. message through the output means that the drying has been successfully completed, and in case the current humidity is greater than FTarget humidity, an error message is output in a method step 470.

Although the invention has been illustrated and explained in detail by means of preferred embodiments, the invention is not limited by the examples disclosed and the person skilled in the art can derive other variations from them without departing from the scope of protection of the invention. Therefore, it is clear that there are a large number of possible variations. It is equally clear that the embodiments mentioned by way of example are really only examples and should not be interpreted as in any way limiting the scope of protection, the possibilities of application or the configuration of the invention. On the contrary, the above description and the description of the figures allow the person skilled in the art to concretely implement the exemplary embodiments, the person skilled in the art, knowing the disclosed inventive idea, being able to make numerous changes, for example in terms of function or arrangement of individual elements mentioned in an exemplary embodiment, without departing from the scope of protection defined by the claims and their legal equivalents, such as in further explanations in the description.

reference list

10 control device

12 mains plug

14 power outlet for fan as drying unit

18 power outlet for dehumidifier as drying device

20 power outlet for heater as drying unit

22 power tap for turbine as drying device

24 data port for a humidity sensor and/or temperature sensor

26 half out

28 control unit

100 - 500 procedure steps

Claims (1)

1. Control apparatus (10) for carrying out a method for drying an area to be dried of a construction site, the control apparatus (10) comprising - at least one mains plug (12) to supply voltage to the control device (10), - at least one controllable voltage outlet (14) for a drying appliance designed as a fan, - at least one controllable voltage outlet (18) for a drying appliance designed as a dehumidifier, - at least one controllable voltage outlet (20 ) for a drying device implemented as a heater, preferably as a heating plate, - at least one controllable voltage outlet (22) for a drying device realized as a turbine, - at least one data port (24) for a humidity sensor and/or temperature sensor, - an output means (26) for sending messages, - a control unit (28) with which a voltage can be applied independently of one another to the at least one controllable voltage tap (14) for a fan, to the at least one controllable voltage tap (18) for a dehumidifier , at least one controllable voltage outlet (20) for a heater and at least one controllable voltage outlet (22) for a turbine based on humidity data that can be provided through the at least one data port (24) for a humidity sensor, relating to the humidity of the air in or over the area to be dried, wherein the control unit (28) is configured to determine air humidity data during the drying of the area to be dried by operating one or more drying apparatus through the data port (24) for the at least one humidity sensor and/or temperature sensor and to create from them a humidity profile of the area to be dried, after a rest phase with a period of time t rest phase of the drying apparatus(es), with the aid of the created humidity profile and a currently measured air humidity F after the rest phase, in order to forecast a future humidity profile when one or more of the drying apparatuses are operated again and , with the help of the predicted future humidity profile, output a message about a certain remaining drying time tremaining time, after which a predefinable desired air humidity must not be exceeded FTarget humidity of the area to be dried, wherein the control unit (28) is configured to carry out a procedure for drying, comprising - control the voltage taps (14, 18, 20, 22) to adopt a state with voltage permanently applied to allow continuous operation of one or more connected drying appliances, - during continuous operation, determining, by means of at least one humidity sensor connected to the data port (24), if there is a desired air humidity F after continuous operation, - if the desired air humidity F is determined after continuous operation, check the voltage taps (14, 18, 20, 22) to carry out a first interval operation for a predefinable period of time tinterval operation and create the humidity profile by creating a total air humidity measurement curve, controlling the voltage taps (14, 18, 20, 22) to provide a voltage-free state if, within the full measurement curve, a partial measurement curve indicates a stable value of air humidity within a range of predefinable time and/or if a current measured air humidity < interval operation lower limit, and controlling them to provide a voltage if a measured current air humidity > interval operation upper limit, - once the period of time tinterval operation has elapsed, control the voltage taps (14, 18, 20, 22) to adopt a voltage-free state to carry out the rest phase during the predefinable period of time trest phase - after the period of time trest phase has elapsed, measure the current air humidity F after the rest phase in or on the area to be dried, - predict a remaining drying time tremaining time needed to reach FTarget humidity on the basis of the total measurement curve created during interval operation and the current measured air humidity F after the rest phase, and - controlling the voltage taps (14, 18, 20, 22) to carry out a second operation at intervals during the predicted period of time t remaining term. Control apparatus (10) according to claim 1, wherein the control apparatus (10) is configured to carry out in the process for drying, in addition, the following step: - after the predicted period of time tremaining time has elapsed, ending the second interval operation, and in case the current air humidity < Ftarget humidity, outputting a message through the output means (26) that the drying is completed completed successfully, and in case current air humidity > Ftarget humidity, output an error message. Control device (10) according to one of the preceding claims, further comprising a remote data transmission module with which a determined remaining drying time tremaining time and/or a message to a data receiver. Control device (10) according to one of the preceding claims, characterized in that the mains plug (12) is associated with a personal protection switch integrated in the control unit (10). Control device (10) according to one of the preceding claims, characterized in that the control device (10) further comprises an electric meter, with which the sum of the electrical energy extracted from the at least one controllable voltage socket (14) for a fan, of the at least one controllable voltage socket (18) for a dehumidifier, of the at least one controllable voltage socket (20) for a heating plate and of the at least one socket controllable voltage (22) for a turbine. Control device (10) according to one of the preceding claims, characterized in that the at least one controllable voltage outlet (14) for a fan, the at least one controllable voltage outlet (18) for a dehumidifier, the at least one at least one controllable voltage socket (20) for a heater and/or the at least one controllable voltage socket (22) for a turbine are provided with a locking device with which a plug inserted in the socket can be reversibly secured. respective voltage tap, and/or the respective voltage tap. Control device (10) according to one of the preceding claims, characterized in that the control device (10) comprises input means for entering a lower Frite target value for an air humidity below which no must fall during continuous operation, from a tolerance value, from an air humidity FUpper limit of interval operation, from an air humidity FLower limit of interval operation, from a °target° value Fafter the rest phase, of a target value FTarget humidity for a desired maximum air humidity after completion of drying and/or a period of time interval switching to perform interval operation of one or more drying apparatus, and/or for selection of values generically stored in the control device (10). Control device (10) according to one of Claims 3 to 7, characterized in that the remote data transmission module is designed to receive data from the data receiver configured at the same time as a data sender. Control device (10) according to one of the preceding claims, characterized in that the control device (10) has a second mains socket for the voltage supply, via which the electrical power that can be supplied can be doubled. provided by the control device (10) and that can be requested through the voltage outlets. Arrangement comprising a control device (10) according to one of claims 1 to 9, wherein at least one data port (24) for a humidity sensor and/or a temperature sensor is connected to a temperature sensor. humidity and where, in addition to the possible drying devices that can be connected to the respective controllable voltage outlets (14, 18, 20, 22), selectable from among at least one fan, at least one dehumidifier, at least one heater , preferably a heating plate, and at least one turbine, a drying device, preferably at least two different devices, are connected to the corresponding controllable voltage socket (14, 18, 20, 22). Method for drying an area to be dried of a construction site by means of an arrangement according to claim 10, comprising: - position the humidity sensor in or on the area to be dried, - during continuous operation, determining, by means of the control unit (28), using the at least one humidity sensor connected to the data port (24), if there is a desired air humidity F after continuous operation, - if the desired air humidity F is determined after continuous operation, check the voltage taps (14, 18, 20, 22) for a first intermittent operation of the connected dryer(s) for a period of time predefinable tinterval operation, where, to create a humidity profile, a total air humidity measurement curve is created by continuous measurement or measurement at discrete instants, and where in the first interval operation the measurements are controlled tension (14, 18, 20, 22) to provide a tension-free state if, within the total measurement curve, a partial measurement curve indicates a stable value of air humidity within a predefinable time interval and/ or if a measured current air humidity < Finterval operation lower Frite, and are controlled to provide a voltage if a measured actual air humidity á Finterval operation upper limit , - after the time period tinterval operation of the first interval operation is reached, in case the current air humidity does not exceed a target air humidity Fhumidity, outputting a message through the output means (26) that the drying is completed successfully, and finish the procedure by controlling the voltage taps (14, 18, 20, 22) to provide a voltage-free state, and in case the current air humidity FTarget humidity is exceeded, - carry out a rest phase by controlling the voltage taps (14, 18, 20, 22) to provide a voltage-free state for a predefinable period of time trest phase, - after the period of time trest phase has elapsed, measure the current air humidity Fafter the rest phase and forecast a remaining period of time ttime required to reach FTarget Humidity based on the total measurement curve created during the first interval run, and - carry out a second interval operation during the predicted period of time tremaining term, - after the expiration of the predicted period of time tremaining term, end the second interval operation by checking the voltage taps (14, 18, 20 , 22) to provide a voltage-free state and measure a current air humidity, and in case the current air humidity < Ftarget humidity, output a message through the output means (26) that the drying has been completed. completed successfully, and in case the current air humidity FTarget humidity is exceeded, issue an error message. Method according to claim 11, wherein, during continuous operation, a desired air humidity F after continuous operation is considered to be determined, - as soon as the currently measured air humidity falls to a lower limit target value, provided that a lower limit target value for air humidity has been predefined, - as soon as the measured air humidity remains stable for a predefinable period of time, provided that a lower Fumite target value has not been predefined, and - in case a lower Fnmite target value has been predefined and the current air humidity measured before reaching the lower Fnmite target value remains stable for a predefinable period of time, as long as the lower Fumite target value falls below a preset tolerance value. 13. Method according to claim 11 or 12, wherein, before the control of the voltage taps (14, 18, 20, 22) for continuous operation, a measurement of a current air humidity takes place by means of the humidity sensor. humidity, with continuous operation then starting as soon as the humidity sensor provides a stable measured value. Method according to one of claims 11 to 13, characterized in that it can be output as a message via the output means (26) and/or, in the case of an arrangement comprising a control device (10) according to one of claims 3 to 8, can be transmitted through the remote data transmission module, a message selected from one or more of the messages of - that the humidity sensor and/or the temperature sensor are faulty; - that it has not been possible to detect any drop in air humidity measured during continuous operation; - that during continuous drying the predefinable tolerance value has been exceeded; me - that during a drying of walls there is an atypical profile of the temperature curve in the continuous drying phase. Method according to one of claims 11 to 14, characterized in that the area to be dried is a wall, the humidity of the air on the wall being able to be measured through the humidity sensor and being connected to the controllable voltage outlets ( 14, 18, 20, 22) of the control device (10) as drying devices: - at least one heater to heat the wall to be dried and a dehumidifier; either - at least one heater to heat the wall to be dried, a dehumidifier as well as a fan. Method according to one of Claims 11 to 15, characterized in that the area to be dried is a cavity, the air humidity of the air located in the cavity being measurable via the at least one humidity sensor and being connected to the controllable voltage outlets (14, 18, 20, 22) of the control device (10) as drying devices: - a dehumidifier to dehumidify the air, and - a turbine to introduce the air dehumidified by the dehumidifier into the cavity. Method according to one of claims 11 to 16, characterized in that the area to be dried is a room, being connected to controllable voltage taps (14, 18, 20, 22) of the control device (10) as drying devices - at least one fan to circulate the air in the room, - as well as at least one dehumidifier to dry the air in the room, - as well as, optionally, at least one heater to heat the air in the room, and the relative humidity of the air in the room can be measured through the at least one humidity sensor.