CN115751513A - Control method of fresh air device, storage medium and fresh air device - Google Patents
Control method of fresh air device, storage medium and fresh air device Download PDFInfo
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Abstract
The invention discloses a control method of a fresh air device, a storage medium and the fresh air device, wherein the fresh air device comprises an adsorption rotating wheel, a heat source, an air supply side fan and an air exhaust side fan, the heat source is used for heating outdoor fresh air, the adsorption rotating wheel is used for recovering moisture of indoor return air passing through the air exhaust side fan so as to release the moisture to an indoor environment through the air supply side fan along with the outdoor fresh air, and the control method comprises the following steps: acquiring and calculating a humidity regulation demand actual value of the indoor environment at the current moment according to the humidity actual value and the humidity regulation demand predicted value of the indoor environment at the current moment; the heating power of the heat source and/or the rotation speed of the adsorption runner are/is adjusted according to the humidifying demand actual value, so that the humidifying output value of the fresh air device is equal to the humidifying demand actual value of the indoor environment at the current moment, the indoor humidity can be adjusted timely and accurately, the fresh air device is prevented from being started and stopped frequently, and the service life of the fresh air device is prolonged.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to a control method of a fresh air device, a storage medium and the fresh air device.
Background
The comfort of the air often directly influences the feeling or the healthy temperature of a user, and medical research shows that when the indoor relative humidity is 45-65%, the comfort of a human body is optimal, and when the relative humidity is too low, the health problems of skin peeling, dry oral cavity and the like easily occur to the human body.
Along with the continuous improvement of the quality of life of people, the adjustment of the air humidity is more and more strict, and in the related technology, in the humidification and dehumidification processes of air, the indoor humidity condition in the next period of time is effectively captured by generally and simply relying on the simple control of a humidity sensor of the equipment, so that the control hysteresis is often caused, the problem that the humidity adjustment requirement and the system output are not matched in the indoor environment is often caused, and on one hand, the indoor relative humidity has larger fluctuation and the comfort is influenced; on the other hand, internal elements (such as a heater, a fan and the like) of the equipment are started and stopped frequently, and the service life is shortened.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a control method for a fresh air device, which can accurately obtain an actual value of a humidity control demand of an indoor environment, and further perform corresponding control on the fresh air device, so as to adjust the indoor humidity timely and accurately, prevent the fresh air device from being started and stopped frequently, and improve the service life of the fresh air device.
A second object of the invention is to propose a computer-readable storage medium.
The third purpose of the invention is to provide a first fresh air device.
The fourth purpose of the invention is to provide a second fresh air device.
In order to achieve the above object, a first aspect of the present invention provides a control method for a fresh air device, the fresh air device includes an adsorption rotor, a heat source, a supply-side fan and an exhaust-side fan, the heat source is used for heating outdoor fresh air, the adsorption rotor is used for recovering moisture of indoor return air passing through the exhaust-side fan, so that the moisture is released to an indoor environment along with the outdoor fresh air by the supply-side fan, the control method includes: acquiring an actual humidity value and a predicted humidity-regulating demand value of the indoor environment at the current moment; calculating the humidity regulation demand actual value of the indoor environment at the current moment according to the humidity actual value and the humidity regulation demand predicted value of the indoor environment at the current moment; and adjusting the heating power of the heat source and/or the rotation speed of the adsorption runner according to the actual humidity-adjusting value to enable the humidity-adjusting output value of the fresh air device to be equal to the actual humidity-adjusting value of the indoor environment at the current moment.
According to the control method of the fresh air device in the embodiment, the actual humidity-control demand value of the indoor environment at the current moment is accurately calculated according to the actual humidity value and the predicted humidity-control demand value of the indoor environment at the current moment, and then the heating power of the heat source in the fresh air device and/or the rotation speed of the adsorption runner are controlled according to the actual humidity-control demand value, so that the humidity-control output value of the fresh air device is equal to the actual humidity-control demand value of the indoor environment at the current moment, the indoor humidity can be accurately adjusted, the fresh air device is prevented from being frequently started and stopped, and the service life of the fresh air device is prolonged.
In some embodiments of the present invention, obtaining the predicted value of the humidity control demand of the indoor environment at the current time includes: calculating a humidity predicted value of the indoor environment at the current moment according to the humidity predicted value and the humidity regulation demand predicted value of the indoor environment at the previous moment; acquiring a humidity set value of the indoor environment at the current moment; and calculating to obtain a humidity regulation demand predicted value of the indoor environment at the current moment according to the humidity set value, the humidity predicted value and the humidity actual value of the indoor environment at the current moment.
In some embodiments of the present invention, the predicted humidity value of the indoor environment at the current moment is calculated according to the following formula: the humidity control method comprises the steps of Hob (n) = epsilon Hob (n-1) + (1-epsilon) × Hc (n-1), wherein Hob (n) is a humidity predicted value of the indoor environment at the current moment, hob (n-1) is a humidity predicted value of the indoor environment at the last moment, hc (n-1) is a humidity control demand predicted value of the indoor environment at the last moment, and epsilon is a preset parameter.
In some embodiments of the present invention, the humidity control demand prediction value at the current time of the indoor environment is calculated according to the following formula: hc (n) = a × Hset (n) + b × Hob (n) + c × Hr (n), wherein Hc (n) is a humidity control demand predicted value of the indoor environment at the current time, hset (n) is a humidity set value of the indoor environment at the current time, hob (n) is a humidity predicted value of the indoor environment at the current time, hr (n) is a humidity actual value of the indoor environment at the current time, a, b, and c are preset parameters, and in an initial time, the humidity predicted value of the indoor environment is equal to the humidity actual value.
In some embodiments of the present invention, the actual humidity control demand value of the indoor environment at the current time is calculated according to the following formula: hw = (Hr (n) -Hc (n)). Alpha.wherein Hw is the actual humidity control demand value of the indoor environment at the current moment, hr (n) is the actual humidity value of the indoor environment at the current moment, hc (n) is the predicted humidity control demand value of the indoor environment at the current moment, and alpha is a preset parameter.
In some embodiments of the present invention, adjusting the heating power of the heat source and/or the rotation speed of the adsorption rotor according to the actual value of the humidity control demand includes: acquiring a humidity-adjusting output value of the fresh air device; when the humidity control output value of the fresh air device is smaller than the actual humidity control requirement value, improving the heating power of the heat source and/or the rotation speed of the adsorption runner; and when the humidity control output value of the fresh air device is greater than the actual humidity control requirement value, reducing the heating power of the heat source and/or the rotation speed of the adsorption runner.
In some embodiments of the present invention, adjusting the heating power of the heat source and the rotation speed of the adsorption rotor according to the humidity control demand actual value includes: when the humidifying output value of the fresh air device is larger than the humidifying demand actual value, reducing the heating power of the heat source; and when the current heating power of the heat source is the lowest preset power threshold and the humidity control output value of the fresh air device is larger than the actual humidity control demand value, reducing the rotation speed of the adsorption runner.
In some embodiments of the invention, the control method further comprises: and when the duration that the actual humidifying demand value of the indoor environment at the current moment is continuously smaller than the preset threshold value is the preset duration, controlling the heat source and the adsorption runner to be closed.
To achieve the above object, a second aspect of the present invention provides a computer-readable storage medium, on which a control program of a fresh air device is stored, and the control program of the fresh air device, when executed by a processor, implements the control method of the fresh air device according to the above embodiments.
The computer-readable storage medium of the embodiment of the invention can accurately acquire the actual humidity-controlling requirement value of the indoor environment by executing the control program of the fresh air device stored on the processor through the processor, and further correspondingly control the fresh air device so as to timely and accurately regulate the indoor humidity, prevent the fresh air device from being started and stopped frequently and prolong the service life of the fresh air device.
In order to achieve the above object, a third aspect of the present invention provides a first fresh air device, which includes a memory, a processor, and a control program of the fresh air device, where the control program is stored in the memory and is executable on the processor, and when the processor executes the control program of the fresh air device, the control method of the fresh air device according to the above embodiment is implemented.
According to the first fresh air device disclosed by the embodiment of the invention, the processor executes the control program of the fresh air device stored on the memory, so that the actual humidity regulation requirement value of the indoor environment can be accurately obtained, the fresh air device is correspondingly controlled, the indoor humidity is timely and accurately regulated, the fresh air device is prevented from being started and stopped frequently, and the service life of the fresh air device is prolonged.
In order to achieve the above object, a fourth aspect of the present invention provides a second fresh air device, which includes an adsorption rotor, a heat source, a supply-side fan, a discharge-side fan, and a control component, wherein the heat source is used for heating outdoor fresh air, the adsorption rotor is used for recovering moisture in indoor return air passing through the discharge-side fan, so that the moisture is released to an indoor environment along with the outdoor fresh air through the supply-side fan, and the control component is used for: acquiring an actual humidity value and a predicted humidity-regulating demand value of the indoor environment at the current moment; calculating a humidity regulation demand actual value of the indoor environment at the current moment according to the humidity actual value and the humidity regulation demand predicted value of the indoor environment at the current moment; and adjusting the heating power of the heat source and/or the rotating speed of the adsorption runner according to the actual humidifying demand value, so that the humidifying output value of the fresh air device is equal to the actual humidifying demand value of the indoor environment at the current moment.
The fresh air device in the embodiment accurately calculates the humidity-control-demand actual value of the current time of the indoor environment according to the humidity actual value and the humidity-control-demand predicted value of the current time of the indoor environment, and then controls the heating power of the heat source and/or the rotation speed of the adsorption runner in the fresh air device according to the humidity-control-demand actual value, so that the humidity-control output value of the fresh air device is equal to the humidity-control-demand actual value of the current time of the indoor environment, the indoor humidity can be accurately adjusted, the fresh air device is prevented from being frequently started and stopped, and the service life of the fresh air device is prolonged.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1A is a schematic diagram of a fresh air device according to an embodiment of the present invention;
FIG. 1B is a schematic diagram of a fresh air device according to another embodiment of the present invention;
FIG. 2 is a flow chart of a method for controlling a fresh air device according to an embodiment of the present invention;
FIG. 3 is a flow chart of a control method of a fresh air device according to another embodiment of the present invention;
FIG. 4 is a flow chart of a method for controlling a fresh air device according to another embodiment of the present invention;
FIG. 5 is a flow chart of a method for controlling a fresh air device according to another embodiment of the present invention;
FIG. 6 is a block diagram of a first ventilation device according to an embodiment of the present invention;
fig. 7 is a block diagram of a second medium air-freshening apparatus according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
A control method of a fresh air device, a storage medium, and a fresh air device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1A, the fresh air device in the embodiment of the present invention includes an adsorption rotor 1, a heat source 2, an air supply side fan 3 and an air exhaust side fan 4, the air supply side fan 3 is disposed at an indoor air supply outlet for supplying outdoor fresh air indoors, the air exhaust side fan 4 is disposed at an outdoor air exhaust outlet for exhausting indoor return air outdoors, the adsorption rotor 1 is used for recovering moisture of the indoor return air and releasing the moisture to the indoor with the outdoor fresh air, and the heat source 2 is disposed at an outdoor fresh air inlet for heating the outdoor fresh air. In other embodiments, as shown in fig. 1B, the fresh air device is further provided with a bypass air valve 5, and the bypass air valve 5 is arranged between the outdoor fresh air inlet and the indoor air supply inlet and used for adjusting the air volume of the outdoor fresh air heated by the heat source 2. In the figure, OA (outdoor Air) represents outdoor fresh Air, RA (Return Air) represents indoor Return Air, SA (Supply Air) represents indoor Supply Air, and EA (outdoor Air) represents outdoor discharge Air. The heat source 2, the adsorption rotating wheel 1 and the air supply fan 3 form an air supply channel for supplying air to the indoor, and outdoor fresh air enters the indoor after passing through the heat source 2 and the adsorption rotating wheel 1 in sequence under the action of the air supply fan 3; the adsorption rotating wheel 1 and the exhaust fan 4 form an exhaust channel for exhausting air to the outside, and the indoor return air is exhausted to the outside through the adsorption rotating wheel 1 under the action of the exhaust fan 4.
FIG. 2 is a flow chart of a method for controlling a fresh air device according to an embodiment of the present invention.
As shown in fig. 2, the present invention provides a control method for a fresh air device, which includes the following steps:
and S10, acquiring the actual humidity value and the predicted humidity-adjusting demand value of the indoor environment at the current moment.
Specifically, in this embodiment, the actual humidity value of the indoor environment at the current time may be obtained by a humidity sensor, and optionally, since there may be a difference in humidity in different locations in the indoor environment, the humidity sensors may be disposed in the different locations in the indoor environment, and then the actual humidity value of the indoor environment at the current time is determined by performing an average calculation or multiplying the average calculation or the actual humidity value by a corresponding expected value according to the humidity information obtained by the multiple sensors. Of course, the actual humidity value of the indoor environment at the current time may also be obtained through other obtaining manners, and this embodiment only defines the obtained actual humidity value as an accurate humidity value, and does not define the obtaining manner.
In this embodiment, the humidity control demand prediction value at the current time of the indoor environment represents a humidity control demand value predicted under the prediction value of the current indoor humidity, and in some embodiments, as shown in fig. 3, obtaining the humidity control demand prediction value at the current time of the indoor environment includes:
s301, calculating the humidity predicted value of the indoor environment at the current moment according to the humidity predicted value and the humidity regulation demand predicted value of the indoor environment at the previous moment.
S302, acquiring a humidity set value of the indoor environment at the current moment.
And S303, calculating to obtain a humidity control demand predicted value of the indoor environment at the current time according to the humidity set value, the humidity predicted value and the humidity actual value of the indoor environment at the current time.
Specifically, in this embodiment, the humidity predicted value at the current time of the indoor environment may be first calculated according to information such as a historical change value or a change trend of the indoor humidity, and specifically, the humidity predicted value at the current time of the indoor environment may be calculated according to the humidity predicted value at the previous time of the indoor environment and the indoor demand predicted value at the previous time of the indoor environment, and in some embodiments, the humidity predicted value at the current time of the indoor environment may be calculated according to the following formula: hob (n) = epsilon Hob (n-1) + (1-epsilon) Hc (n-1), wherein Hob (n) is a humidity predicted value of the current moment of the indoor environment, hob (n-1) is a humidity predicted value of the previous moment of the indoor environment, hc (n-1) is a humidity regulation demand predicted value of the previous moment of the indoor environment, epsilon is a preset parameter, and optionally, the value of epsilon can be [0.1,0.9].
After the predicted humidity value of the indoor environment at the current time is calculated by the above example, the present embodiment further obtains the humidity set value and the actual humidity value of the indoor environment at the current time, and it is understood that the humidity set value may be a set value set on the air conditioner, and the purpose of the humidity set value is to adjust the humidity of the indoor environment at the current time to the humidity set value. In this embodiment, after the humidity set value of the indoor environment at the current time is obtained, the humidity control demand predicted value of the indoor environment at the current time is calculated according to the humidity set value, the humidity predicted value and the humidity actual value of the indoor environment at the current time. Specifically, in some examples, the predicted humidity control demand value at the current time of the indoor environment is calculated according to the following formula: hc (n) = a × Hset (n) + b × Hob (n) + c × Hr (n), where Hc (n) is a predicted humidity control value of the current time of the indoor environment, hset (n) is a set humidity value of the current time of the indoor environment, hob (n) is a predicted humidity value of the current time of the indoor environment, hr (n) is an actual humidity value of the current time of the indoor environment, a, b, and c are preset parameters, for example, the range of values of a, b, and c may be [0,10], and in the initial time, the predicted humidity value and the actual humidity value of the indoor environment are equal, that is, hob (0) and Hr (0) are equal.
And S20, calculating the humidity control demand actual value ((H _ r (n) -H _ c (n)). Alpha.) of the current time of the indoor environment according to the humidity control demand actual value and the humidity control demand predicted value of the current time of the indoor environment.
Specifically, after the humidity control demand predicted value at the current time of the indoor environment is obtained through calculation, the humidity control demand actual value at the current time of the indoor environment may be further calculated according to the humidity control demand predicted value and the humidity actual value at the current time of the indoor environment. It can be understood that there is a certain difference between the predicted humidity control demand value and the actual humidity control demand value, and the embodiment also does not merely add or subtract a difference to the predicted humidity control demand value, but the actual humidity control demand value is also used for calculation, so that a more accurate humidity control demand actual value can be obtained. In some embodiments, the actual value of the humidity control demand at the current moment of the indoor environment is calculated according to the following formula: hw = (Hr (n) -Hc (n)). Alpha, where Hw is the actual humidity control requirement value of the current time of the indoor environment, hr (n) is the actual humidity value of the current time of the indoor environment, hc (n) is the predicted humidity control requirement value of the current time of the indoor environment, alpha is a preset parameter, and the value range of alpha may be [0.8,1.5].
And S30, adjusting the heating power of the heat source and/or the rotating speed of the adsorption runner according to the actual humidity-adjusting value so as to enable the humidity-adjusting output value of the fresh air device to be equal to the actual humidity-adjusting value of the indoor environment at the current moment.
Specifically, as can be seen from fig. 1, when the heating power of the heat source 2 is increased, the temperature of fresh outdoor air can be increased after the fresh outdoor air passes through the heat source 2, so as to bring more moisture adsorbed in the adsorption rotor 1 into the indoor environment. In addition, because the adsorption runner 1 absorbs moisture, and the outdoor fresh air only passes through a part of the adsorption runner 1 when passing through the adsorption runner 1, if the rotation speed of the adsorption runner 1 is small, then the outdoor fresh air continuously passes through the unified part of the adsorption runner 1, and then the moisture brought to the indoor environment from the adsorption runner 1 becomes less, so that the effect of humidifying the indoor environment is poor. That is, the humidity control output value of the performance device can be controlled by adjusting the heating power of the heat source and/or the rotation speed of the adsorption rotor, and the humidity control output value can be obtained by reverse extrapolation, in this embodiment, after the humidity control demand actual value is determined, the heating power of the heat source and the rotation speed of the adsorption rotor can be adjusted according to the humidity control demand actual value, so that the debugging output value of the fresh air device is equal to the humidity control demand actual value of the indoor environment at the current time.
In the present embodiment, the humidity control demand actual value of the indoor environment is calculated and updated at each time, the heating power of the heat source and/or the rotation speed of the adsorption rotor is adjusted based on the updated humidity control demand actual value, and the humidity control output value of the fresh air device is accurately controlled to be equal to the humidity control demand actual value of the indoor environment at the current time.
More specifically, the humidity control output value of the fresh air device may be represented by ((Hr (N) -f3 (P)) (1-f 4 (N)), where f3 (P) represents adjustment of the heating power of the heat source, and f4 (N) represents adjustment of the rotation speed of the rotary damper α1 +b1*P β1 +c1*P θ1 + 8230, + d1, wherein a1, b1, c1, d1, alpha 1, beta 1 and theta 1 all belong to preset parameters, and can be determined by simulation in advance, and P can be represented as the preset power of a heat source; f4 (N) = a2 × N α2 +b2*N β2 +c2*N θ2 + \8230and + d2, wherein a2, b2, c2, d2, alpha 2, beta 2 and theta 2 belong to preset parameters, can be determined in advance by simulation, and N can be expressed as the rotation speed of the adsorption runner.
In some embodiments of the present invention, as shown in fig. 4, adjusting the heating power of the heat source and/or the rotation speed of the adsorption rotor according to the actual value of the humidity control demand includes:
and S401, acquiring a humidity control output value of the fresh air device.
And S402, when the humidity control output value of the fresh air device is smaller than the actual humidity control requirement value, improving the heating power of the heat source and/or the rotating speed of the adsorption runner.
And S403, when the humidity control output value of the fresh air device is larger than the actual humidity control demand value, reducing the heating power of the heat source and/or the rotation speed of the adsorption runner.
Specifically, in the process of controlling the heat source and the adsorption rotor of the fresh air device, the humidity control output value of the fresh air device can be obtained, then the humidity control output value is compared with the actual humidity control demand value, and then the heating power of the heat source and the rotation speed of the adsorption rotor are adjusted according to the comparison result. Therefore, when the humidity control output value of the fresh air device is smaller than the actual humidity control demand value, the heating power of the heat source and/or the rotation speed of the adsorption rotor can be increased, and when the humidity control output value of the fresh air device is larger than the actual humidity control demand value, the heating power of the heat source and/or the rotation speed of the adsorption rotor can be decreased.
It is understood that, in the above embodiments, the heat source or the adsorption rotor may be adjusted individually according to the actual humidity control demand value, or both the heat source and the adsorption rotor may be adjusted simultaneously according to the actual humidity control demand value, and in some embodiments, as shown in fig. 5, if both the heat source and the adsorption rotor are adjusted simultaneously, the following steps may be included:
s501, when the humidity control output value of the fresh air device is larger than the actual humidity control demand value, the heating power of the heat source is reduced.
And S502, when the current heating power of the heat source is the lowest preset power threshold value and the humidity control output value of the fresh air device is larger than the actual humidity control requirement value, reducing the rotating speed of the adsorption runner.
Specifically, when the heating power of the heat source and the rotation speed of the adsorption runner are adjusted according to the humidity control demand value, the heating power of the heat source can be adjusted, and when the capacity of adjusting the indoor humidity through the heat source reaches the minimum, the rotation speed of the adsorption runner is adjusted, so that the humidity control output value of the fresh air device is equal to the debugging demand actual value. It should be noted that the minimum preset power threshold in this embodiment may be set according to specification parameters of a heat source in the fresh air device.
In some embodiments, the control method of the fresh air device further includes: and when the time length that the actual humidifying demand value of the indoor environment at the current moment is continuously less than the preset threshold (0) is the preset time length, controlling the heat source and the adsorption runner to be closed.
Specifically, other humidity control equipment can participate in humidity control in the indoor environment to improve the humidity control speed, so that if the actual humidity control demand value of the indoor environment at the current time is smaller than the preset threshold value and the duration is the preset duration, it indicates that humidity control is not needed to be performed on the indoor environment at present, that is, the humidity control operation is completed, and therefore the heat source and the adsorption runner can be controlled to be closed. Alternatively, the preset threshold may be 0, and the preset duration may range from [10 seconds, 50 seconds ].
In one embodiment, the humidity set value Hset (n) at the current time of the indoor environment at the time of starting the operation of the apparatus is 60%, the actual humidity value Hr (n) at the current time of the indoor environment is 30%, the humidity control demand predicted value Hc (n) at the current time of the indoor environment is calculated to be 55%, and the humidity predicted value Hob (n) at the current time of the indoor environment is the same as the actual humidity value at the current time of the indoor environment at the time of starting the operation and is 30%. Assuming that the humidity control demand value at the present time in the indoor environment and the humidity control output value of the fresh air device are calculated to be 0.25 and 0.2, respectively, by adjusting the preset parameters in the above embodiment, the heating power of the heat source can be maximized and the rotation speed of the adsorption rotor can be adjusted to the humidification amount maximum rotation speed N1 because the humidity control output value is smaller than the humidity control demand value.
After the time is 1min, the actual humidity value Hr (N) of the indoor environment at the current time is 31%, the predicted humidity value Hob (N) of the indoor environment at the current time is calculated to be 32%, the predicted humidity control demand value Hc (N) of the indoor environment at the current time is calculated to be 55%, the humidity control demand value of the indoor environment at the current time is calculated to be 0.24, the humidity control output value of the fresh air device at the current environment is 0.2, and is still smaller than the humidity control demand value, and then the heating power P of the heat source and the rotation speed N of the adsorption runner maintain the state at the previous time, and the humidification is continued.
After the time of 40min, the actual humidity value Hr (N) of the indoor environment at the current moment is 50%, the predicted humidity value Hob (N) of the indoor environment at the current moment is calculated to be 51%, the predicted humidity control demand value Hc (N) of the indoor environment at the current moment is calculated to be 58%, the humidity control demand value of the indoor environment at the current moment is calculated to be 0.1, the humidity control output value of the fresh air device at the current environment is 0.15 and is greater than the humidity control demand value, so that the heating power P of the heat source is reduced, the rotating speed N of the adsorption rotating wheel is reduced, and the humidification is continued.
After the time of 60min, the actual humidity value Hr (N) of the indoor environment at the current moment is 57%, the predicted humidity value Hob (N) of the indoor environment at the current moment is calculated to be 58%, the predicted humidity requirement Hc (N) of the indoor environment at the current moment is calculated to be 59%, the humidity requirement value of the indoor environment at the current moment is calculated to be 0.02, the humidity control output value of the fresh air device at the current environment is 0.03 and is greater than the humidity requirement value, so that the heating power P of the heat source is continuously reduced, and the rotating speed N of the adsorption runner is not continuously reduced after being reduced to the minimum rotating speed N2 of the motor.
After the time of 70min, the actual humidity value Hr (N) of the indoor environment at the current moment is 59%, the predicted humidity value Hob (N) of the indoor environment at the current moment is calculated to be 60%, the predicted humidity control demand value Hc (N) of the indoor environment at the current moment is 60%, the humidity control demand value of the indoor environment at the current moment is calculated to be 0.01, the humidity control output value of the fresh air device at the current environment is 0.01, and the two values are equal, so that the heating power P of the heat source and the rotating speed N of the adsorption rotating wheel are kept unchanged.
After the time of 80min, the actual humidity value Hr (n) of the indoor environment at the current moment is 60%, the predicted humidity value Hob (n) of the indoor environment at the current moment is calculated to be 60%, the predicted humidity requirement Hc (n) of the indoor environment at the current moment is calculated to be 60%, the humidity requirement value of the indoor environment at the current moment is calculated to be 0.0, the target state is reached, and the heating power P of the heat source is reduced to minimize the humidifying capacity of the equipment.
After the time of 90min, the actual humidity value Hr (n) of the indoor environment at the current moment is 61%, the predicted humidity value Hob (n) of the indoor environment at the current moment is 61%, the predicted humidity control demand value Hc (n) of the indoor environment at the current moment is 61%, the humidity control demand value of the indoor environment at the current moment is calculated to be-0.01, the target state is exceeded, and the adsorption runner and the heat source are closed.
In conclusion, the control method of the fresh air device provided by the embodiment of the invention can accurately acquire the actual humidity regulation requirement value of the indoor environment, and further correspondingly control the fresh air device, so that the indoor humidity can be timely and accurately regulated, the fresh air device is prevented from being frequently started and stopped, and the service life of the fresh air device is prolonged.
In order to implement the method of the above embodiment, an embodiment of the present invention provides a computer-readable storage medium, on which a control program of a fresh air device is stored, and when the control program of the fresh air device is executed by a processor, the steps of the control method of the fresh air device of the above embodiment of the present invention are implemented.
According to the computer-readable storage medium provided by the embodiment of the invention, the processor executes the control program of the fresh air device stored on the processor, so that the actual humidity regulation requirement value of the indoor environment can be accurately obtained, the fresh air device is correspondingly controlled, the indoor humidity is timely and accurately regulated, the fresh air device is prevented from being started and stopped frequently, and the service life of the fresh air device is prolonged.
Fig. 6 is a block diagram of a first fresh air device according to an embodiment of the present invention.
Further, as shown in fig. 6, the present invention provides a first fresh air device 100, where the fresh air device 100 includes a memory 101, a processor 102, and a control program of the fresh air device, which is stored in the memory 101 and can be run on the processor 102, and when the processor 102 executes the control program of the fresh air device, the control method of the fresh air device according to the above embodiment is implemented.
According to the first fresh air device disclosed by the embodiment of the invention, the processor executes the control program of the fresh air device stored on the memory, so that the actual humidity regulation requirement value of the indoor environment can be accurately obtained, the fresh air device is correspondingly controlled, the indoor humidity is timely and accurately regulated, the fresh air device is prevented from being started and stopped frequently, and the service life of the fresh air device is prolonged.
Fig. 7 is a block diagram of a second medium wind device according to an embodiment of the present invention.
Further, as shown in fig. 7, the present invention provides a second medium fresh air device 100, where the fresh air device 200 includes an adsorption rotating wheel 1, a heat source 2, an air supply side fan 3, an air exhaust side fan 4, and a control component 201, the heat source 2 is used to heat outdoor fresh air, the adsorption rotating wheel 1 is used to recover moisture of indoor return air passing through the air exhaust side fan, so that the moisture is released to the indoor environment through the air supply side fan along with the outdoor fresh air, it should be noted that, the fresh air device 100 in this embodiment may further include a bypass air duct, the bypass air duct may further include a bypass air valve 5, the air volume of the outdoor fresh air passing through the heat source 2 may be adjusted by controlling the opening degree of the bypass air valve 5, and the control component 201 is used to: acquiring an actual humidity value and a predicted humidity-regulating demand value of the indoor environment at the current moment; calculating a humidity regulation demand actual value of the indoor environment at the current moment according to the humidity actual value and the humidity regulation demand predicted value of the indoor environment at the current moment; the heating power of the heat source 2 and/or the rotation speed of the adsorption rotor 1 are/is adjusted according to the actual humidity control demand value so that the humidity control output value of the fresh air device 200 is equal to the actual humidity control demand value of the indoor environment at the current time.
In some embodiments of the invention, the control assembly is further configured to: calculating a humidity predicted value of the indoor environment at the current moment according to the humidity predicted value and the humidity demand predicted value of the indoor environment at the previous moment; acquiring a humidity set value of the indoor environment at the current moment; and calculating to obtain a humidity regulation demand predicted value of the indoor environment at the current time according to the humidity set value, the humidity predicted value and the actual humidity value of the indoor environment at the current time.
In some embodiments of the present invention, the predicted value of the humidity of the indoor environment at the current moment is calculated according to the following formula: the humidity control method comprises the steps of Hob (n) = epsilon Hob (n-1) + (1-epsilon) Hc (n-1), wherein Hob (n) is a humidity predicted value of the indoor environment at the current moment, hob (n-1) is a humidity predicted value of the indoor environment at the last moment, hc (n-1) is a humidity control demand predicted value of the indoor environment at the last moment, and epsilon is a preset parameter.
In some embodiments of the present invention, the predicted humidity control demand value at the current time of the indoor environment is calculated according to the following formula: hc (n) = a × Hset (n) + b × Hob (n) + c × Hr (n), wherein Hc (n) is a humidity control demand predicted value of the indoor environment at the current time, hset (n) is a humidity set value of the indoor environment at the current time, hob (n) is a humidity predicted value of the indoor environment at the current time, hr (n) is a humidity actual value of the indoor environment at the current time, a, b and c are preset parameters, and in the initial time, the humidity predicted value of the indoor environment is equal to the humidity actual value.
In some embodiments of the present invention, the actual humidity control demand value at the current time of the indoor environment is calculated according to the following formula: hw = (Hr (n) -Hc (n)). Alpha, where Hw is an actual humidity control demand value of the indoor environment at the current time, hr (n) is an actual humidity value of the indoor environment at the current time, hc (n) is a predicted humidity control demand value of the indoor environment at the current time, and alpha is a preset parameter.
In some embodiments of the invention, the control assembly is further configured to: acquiring a humidity-adjusting output value of a fresh air device; when the humidity-adjusting output value of the fresh air device is smaller than the actual humidity-adjusting demand value, the heating power of the heat source and/or the rotating speed of the adsorption runner are/is increased; and when the humidity control output value of the fresh air device is greater than the actual humidity control demand value, reducing the heating power of the heat source and/or the rotating speed of the adsorption runner.
In some embodiments of the invention, the control component is further configured to: when the humidifying output value of the fresh air device is larger than the humidifying demand actual value, reducing the heating power of the heat source; and when the current heating power of the heat source is the lowest preset power threshold value and the humidity control output value of the fresh air device is greater than the actual humidity control demand value, reducing the rotation speed of the adsorption runner.
In some embodiments of the invention, the control component is further configured to: and when the duration that the actual humidifying demand value of the indoor environment at the current moment is continuously smaller than the preset threshold value is the preset duration, controlling the heat source and the adsorption runner to be closed.
It should be noted that, for a specific implementation of the second fresh air device in the embodiment of the present invention, reference may be made to the specific implementation of the control method of the fresh air device in the foregoing embodiment, and details are not described herein again.
In summary, the second fresh air device according to the embodiment of the present invention accurately calculates the actual humidity control demand value of the indoor environment at the current time according to the actual humidity value and the predicted humidity control demand value of the indoor environment at the current time, and then controls the heating power of the heat source and/or the rotation speed of the adsorption rotating wheel in the fresh air device according to the actual humidity control demand value, so that the humidity control output value of the fresh air device is equal to the actual humidity control demand value of the indoor environment at the current time, and thus the indoor humidity can be accurately adjusted, the fresh air device is prevented from being frequently started and stopped, and the service life of the fresh air device is prolonged.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second", and the like used in the embodiments of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated in the embodiments. Thus, a feature of an embodiment of the present invention that is defined by the terms "first," "second," etc. may explicitly or implicitly indicate that at least one of the feature is included in the embodiment. In the description of the present invention, the word "plurality" means at least two or two and more, such as two, three, four, etc., unless specifically limited otherwise in the examples.
In the present invention, unless otherwise explicitly specified or limited in relation to the embodiments, the terms "mounted," "connected," and "fixed" in the embodiments shall be understood in a broad sense, for example, the connection may be a fixed connection, a detachable connection, or an integrated body, and may be understood as a mechanical connection, an electrical connection, etc.; of course, they may be directly connected or indirectly connected through an intermediate medium, or they may be interconnected or in mutual relationship. Those of ordinary skill in the art will understand the specific meaning of the above terms in the present invention according to their specific implementation.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. A control method of a fresh air device is characterized in that the fresh air device comprises an adsorption rotating wheel, a heat source, an air supply side fan and an air exhaust side fan, the heat source is used for heating outdoor fresh air, the adsorption rotating wheel is used for recovering moisture of indoor return air passing through the air exhaust side fan so that the moisture is released to an indoor environment through the air supply side fan along with the outdoor fresh air, and the control method comprises the following steps:
acquiring an actual humidity value and a predicted humidity-regulating demand value of the indoor environment at the current moment;
calculating the humidity regulation demand actual value of the indoor environment at the current moment according to the humidity actual value and the humidity regulation demand predicted value of the indoor environment at the current moment;
and adjusting the heating power of the heat source and/or the rotating speed of the adsorption runner according to the actual humidifying demand value, so that the humidifying output value of the fresh air device is equal to the actual humidifying demand value of the indoor environment at the current moment.
2. The control method according to claim 1, wherein obtaining the predicted humidity control demand value of the indoor environment at the current time comprises:
calculating a humidity predicted value of the indoor environment at the current moment according to the humidity predicted value and the humidity regulation demand predicted value of the indoor environment at the previous moment;
acquiring a humidity set value of the indoor environment at the current moment;
and calculating to obtain a humidity regulation demand predicted value of the indoor environment at the current moment according to the humidity set value, the humidity predicted value and the humidity actual value of the indoor environment at the current moment.
3. The control method according to claim 2, wherein the predicted value of the humidity of the indoor environment at the current time is calculated according to the following formula:
Hob(n)＝ε*Hob(n-1)+(1-ε)*Hc(n-1)
the humidity prediction method comprises the steps of obtaining a humidity prediction value of an indoor environment at the current moment, obtaining a humidity prediction value of the indoor environment at the previous moment, obtaining a humidity regulation demand prediction value of the indoor environment at the previous moment, and obtaining a preset parameter epsilon.
4. The control method according to claim 3, wherein the predicted value of the humidity control demand at the current time of the indoor environment is calculated according to the following formula:
Hc(n)＝a*Hset(n)+b*Hob(n)+c*Hr(n)
wherein, hc (n) is indoor environment current time's humidifying demand predicted value, and Hset (n) is indoor environment current time's humidity set value, and Hob (n) is indoor environment current time's humidity predicted value, and Hr (n) is indoor environment current time's humidity actual value, and a, b, c are the preset parameter, and in the initial moment, indoor environment's humidity predicted value equals with the humidity actual value.
5. The control method according to claim 1, characterized in that the humidity control demand actual value at the current time of the indoor environment is calculated according to the following formula:
Hw＝(Hr(n)-Hc(n))*α
the method comprises the steps of obtaining a humidity regulation demand actual value of the indoor environment at the current moment, obtaining a humidity regulation demand predicted value of the indoor environment at the current moment, obtaining a humidity regulation demand actual value of the indoor environment at the current moment, obtaining a humidity regulation demand predicted value of the indoor environment at the current moment, and obtaining a preset parameter.
6. The control method according to claim 1, wherein adjusting the heating power of the heat source and/or the rotation speed of the adsorption rotor based on the humidity control demand actual value includes:
acquiring a humidity-adjusting output value of the fresh air device;
when the humidity-adjusting output value of the fresh air device is smaller than the actual humidity-adjusting demand value, improving the heating power of the heat source and/or the rotating speed of the adsorption runner;
and when the humidity control output value of the fresh air device is greater than the actual humidity control demand value, reducing the heating power of the heat source and/or the rotation speed of the adsorption runner.
7. The control method according to claim 6, wherein adjusting the heating power of the heat source and the rotational speed of the adsorption rotor in accordance with the humidity control demand actual value includes:
when the humidifying output value of the fresh air device is larger than the humidifying demand actual value, reducing the heating power of the heat source;
and when the current heating power of the heat source is the lowest preset power threshold value and the humidity control output value of the fresh air device is larger than the actual humidity control requirement value, reducing the rotation speed of the adsorption runner.
8. The control method according to any one of claims 1 to 7, characterized by further comprising:
and when the duration that the actual humidity regulation demand value of the indoor environment at the current moment is continuously smaller than the preset threshold value is the preset duration, controlling the heat source and the adsorption runner to be closed.
9. A computer-readable storage medium, characterized in that a control program of a fresh air device is stored thereon, which when executed by a processor implements a control method of a fresh air device according to any one of claims 1 to 8.
10. A fresh air device, comprising a memory, a processor, and a control program of the fresh air device stored in the memory and executable on the processor, wherein the processor implements the control method of the fresh air device according to any one of claims 1 to 8 when executing the control program of the fresh air device.
11. The utility model provides a new trend device, its characterized in that, new trend device is including adsorbing runner, heat source, air supply side fan, exhaust side fan and control assembly, the heat source is used for heating outdoor new trend, adsorb the runner and be used for to the process the moisture of the indoor return air of exhaust side fan is retrieved, so that moisture follows outdoor new trend passes through air supply side fan releases to indoor environment, control assembly is used for:
acquiring an actual humidity value and a predicted humidity-regulating demand value of the indoor environment at the current moment; calculating the humidity regulation demand actual value of the indoor environment at the current moment according to the humidity actual value and the humidity regulation demand predicted value of the indoor environment at the current moment; and adjusting the heating power of the heat source and/or the rotating speed of the adsorption runner according to the actual humidifying demand value, so that the humidifying output value of the fresh air device is equal to the actual humidifying demand value of the indoor environment at the current moment.
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