CN109357380B

CN109357380B - Air conditioner control method and device and computer storage medium

Info

Publication number: CN109357380B
Application number: CN201811298538.XA
Authority: CN
Inventors: 李朋; 盛琳
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2018-11-02
Filing date: 2018-11-02
Publication date: 2021-04-20
Anticipated expiration: 2038-11-02
Also published as: CN109357380A

Abstract

The invention discloses a method and a device for controlling an air conditioner and a computer storage medium, and belongs to the technical field of intelligent household appliances. The method comprises the following steps: acquiring a current humidity value in an air conditioning action area, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value; when the current absolute humidity difference value meets a set condition matched with a heating mode of an air conditioner, performing PID control operation of the current times according to the current absolute humidity difference value to obtain PID output quantity; determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the heating mode of the air conditioner, the maximum working frequency of the compressor corresponding to the heating mode, the obtained actual return working frequency of the compressor and the times corresponding to the PID control; and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.

Description

Air conditioner control method and device and computer storage medium

Technical Field

The invention relates to the technical field of intelligent household appliances, in particular to a method and a device for controlling an air conditioner and a computer storage medium.

Background

With the improvement of living standard, the air conditioner is a necessary product for daily life of people. The air conditioner may have various functions, such as: refrigeration, heating, dehumidification, purge control, and the like.

At present, the air conditioner can perform relatively accurate control operation according to information such as indoor environment temperature returned by a temperature sensor and the like and a target temperature, so that the running frequency of a compressor of the air conditioner is controlled. However, in some environments with relatively high humidity, the control is performed only according to the temperature, and it is difficult to meet the requirement of the user on the comfort level of the indoor air.

Disclosure of Invention

The embodiment of the invention provides an air conditioner control method, an air conditioner control device and a computer storage medium. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of embodiments of the present invention, there is provided a method of air conditioning control, the method including:

acquiring a current humidity value in an air conditioning action area in a heating mode, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value;

when the current absolute humidity difference value meets a set condition matched with a heating mode of an air conditioner, performing PID control operation of the current times according to the current absolute humidity difference value to obtain PID output quantity;

determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the heating mode of the air conditioner, the maximum working frequency of the compressor corresponding to the heating mode, the obtained actual return working frequency of the compressor and the times corresponding to the PID control;

and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.

In an embodiment of the present invention, the performing, according to the current absolute humidity difference, PID control operation for the current number of times, and obtaining the PID output amount includes:

correcting the proportional parameter, the integral parameter and the differential parameter in the PID control operation according to the current absolute humidity difference value, the stored previous absolute temperature difference value and the stored previous absolute temperature difference value to obtain a corrected proportional parameter, a corrected integral parameter and a corrected differential parameter;

correcting the output state value of PID control according to the correction proportion parameter, the correction integral parameter and the correction differential parameter to obtain the current output quantity;

and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.

In an embodiment of the present invention, when the number of times corresponding to the PID control is zero, the determining the first operating frequency of the compressor corresponding to the current absolute humidity difference includes:

when the compressor of the air conditioner starts to operate at the maximum working frequency of a heating mode and the time when the current absolute humidity difference value is less than or equal to a first set value exceeds a set time, determining the obtained actual return working frequency of the compressor as the first working frequency;

when the compressor of the air conditioner does not operate in the heating mode and the current absolute humidity difference value is smaller than or equal to a first set value and larger than a second set value, determining a first set proportion value of the maximum working frequency as the first working frequency;

when the compressor of the air conditioner does not operate in the heating mode and the current absolute humidity difference value is smaller than or equal to a second set value, determining a second set proportion value of the maximum working frequency as the first working frequency;

the first set value is larger than the second set value, and the first set proportion value is larger than the second set proportion value.

In an embodiment of the present invention, when the number of times corresponding to the PID control is zero, the determining the first operating frequency of the compressor corresponding to the current absolute humidity difference further includes:

when a compressor of the air conditioner operates for the first time in a heating mode, determining a third proportional value corresponding to an outdoor temperature value, and determining the third proportional value of the maximum working frequency as a first working frequency of the compressor operating for the first time;

when the compressor of the air conditioner operates in the heating mode and the time interval between the current operation and the previous operation of the compressor is smaller than or equal to a set interval value, correcting a first working frequency corresponding to the previous operation according to a set decreasing frequency amplitude value to obtain a first working frequency corresponding to the current operation;

and when the compressor of the air conditioner operates in the heating mode and the time interval between the current operation and the previous operation of the compressor is greater than the set interval value, determining the first working frequency corresponding to the previous operation as the first working frequency corresponding to the current operation.

In an embodiment of the present invention, when the PID control is performed for a number of times different from zero, the determining the first operating frequency of the compressor corresponding to the current absolute humidity difference further includes:

and when the running time of the compressor in the heating mode is less than the set time and the actual return working frequency of the compressor is less than the first working frequency of the previous PID control, determining the first working frequency of the previous PID control as the first working frequency of the current PID control.

According to a second aspect of embodiments of the present invention, there is provided an apparatus for air conditioning control, the apparatus including:

the system comprises a heating acquisition unit, a control unit and a control unit, wherein the heating acquisition unit is used for acquiring a current humidity value in an air conditioning action area in a heating mode and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value;

the heating output unit is used for carrying out PID control operation of the current times according to the current absolute humidity difference value to obtain PID output quantity when the current absolute humidity difference value meets the set condition matched with the heating mode of the air conditioner;

the heating determining unit is used for determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the heating mode of the air conditioner, the maximum working frequency of the compressor corresponding to the heating mode, the obtained actual return working frequency of the compressor and the times corresponding to the PID control;

and the heating control unit is used for correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor and controlling the compressor to operate according to the current working frequency.

In an embodiment of the present invention, the heating output unit is specifically configured to correct a proportional parameter, an integral parameter, and a differential parameter in the PID control operation according to the current absolute humidity difference, the stored previous absolute temperature difference, and the stored previous absolute temperature difference, so as to obtain a corrected proportional parameter, a corrected integral parameter, and a corrected differential parameter; correcting the output state value of PID control according to the correction proportion parameter, the correction integral parameter and the correction differential parameter to obtain the current output quantity; and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.

In an embodiment of the present invention, the heating determination unit includes:

a heating first determining subunit, configured to determine, when the PID control corresponds to zero times, that a compressor of the air conditioner starts to operate at a maximum operating frequency of a heating mode, and when a time when the current absolute humidity difference is less than or equal to a first set value exceeds a set time, an obtained actual return operating frequency of the compressor as the first operating frequency;

a heating second determining subunit, configured to determine, when the PID control corresponds to zero times, the compressor of the air conditioner does not operate in the heating mode, and the current absolute humidity difference is smaller than or equal to a first set value and larger than a second set value, a first set proportion value of the maximum operating frequency as the first operating frequency;

a third heating determining subunit, configured to determine, when the PID control corresponds to zero times, the compressor of the air conditioner does not operate in the heating mode, and the current absolute humidity difference is less than or equal to a second set value, a second set proportion value of the maximum operating frequency as the first operating frequency;

In an embodiment of the present invention, the heating determination unit further includes:

a heating fourth determining subunit, configured to determine, when the PID control corresponds to zero times and a compressor of the air conditioner operates for the first time in the heating mode, a third proportional value corresponding to the outdoor temperature value, and determine the third proportional value of the maximum operating frequency as a first operating frequency at which the compressor operates for the first time;

the heating fifth determining subunit is used for correcting the first working frequency corresponding to the previous operation according to the set decreasing frequency amplitude value when the number of times corresponding to the PID control is zero, the compressor of the air conditioner operates in the heating mode, and the time interval between the current operation and the previous operation of the compressor is smaller than or equal to the set interval value, so as to obtain the first working frequency corresponding to the current operation;

and the heating sixth determining subunit is used for determining the first working frequency corresponding to the previous operation as the first working frequency corresponding to the current operation when the compressor of the air conditioner operates in the heating mode and the time interval between the current operation and the previous operation of the compressor is greater than the set interval value.

In an embodiment of the present invention, the heating determining unit is further configured to determine the first operating frequency of the previous PID control as the first operating frequency of the current PID control when the number of times corresponding to the PID control is not zero, the operating time of the compressor in the heating mode is less than the set time, and the actual return operating frequency of the compressor is less than the first operating frequency of the previous PID control.

According to a third aspect of embodiments of the present invention, there is provided an apparatus for air conditioning control, for an air conditioner, the apparatus including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

According to a fourth aspect of embodiments of the present invention, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the above-described method.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, the air conditioner in the heating mode can perform PID control operation according to the current humidity value and the target humidity value in the action area, and determine the working frequency of the compressor, so as to control the compressor of the air conditioner.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a flow chart illustrating a method of controlling an air conditioner according to an exemplary embodiment;

FIG. 1-1 is a schematic diagram illustrating a correspondence between a first operating frequency and an outdoor temperature, according to an exemplary embodiment;

FIG. 2-1 is a flow chart illustrating a method of controlling an air conditioner according to an exemplary embodiment;

2-2 are flow diagrams illustrating a method of controlling an air conditioner according to an exemplary embodiment;

FIG. 3 is a flow chart illustrating a method of controlling an air conditioner according to an exemplary embodiment;

FIG. 4 is a block diagram illustrating an air conditioning control unit according to an exemplary embodiment;

fig. 5 is a block diagram illustrating an air conditioning control apparatus according to an exemplary embodiment.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.

For some environments with higher humidity, the air conditioner is controlled only according to the temperature, and the requirement of the user on the comfort level of the air in the air conditioning action area is difficult to meet. In the embodiment of the invention, the air conditioner can perform PID control operation according to the current humidity value and the target humidity value in the action area, and determine the working frequency of the compressor, so as to control the compressor of the air conditioner, thereby not only further improving the pertinence and the accuracy of air conditioner control, but also effectively adjusting the humidity in the action area and improving the air comfort level in the action area due to the fact that the air conditioner can adjust the working frequency of the compressor according to the humidity in an environment with higher humidity.

Air conditioners have a variety of operating modes, such as: the air conditioner comprises a dehumidification mode, a refrigeration mode, a heating mode and the like, wherein no matter what mode the air conditioner is in, PID control operation can be carried out according to the current humidity value and the target humidity value in an action area, the working frequency of a compressor is determined, and therefore the compressor of the air conditioner is controlled. The method specifically comprises the following steps: acquiring a current humidity value in an air conditioning action area, and acquiring a current absolute humidity difference value between the current humidity value and a target humidity value; when the current absolute humidity difference value meets the set condition matched with the running mode of the air conditioner, the PID control operation of the current times can be carried out according to the current absolute humidity difference value, and the PID output quantity is obtained; determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the running mode of the air conditioner, the maximum working frequency of the compressor corresponding to the running mode, the obtained actual return working frequency of the compressor and the corresponding times of PID control; and then, correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency. Wherein, the operation mode includes: a dehumidification mode, a cooling mode, or a heating mode.

In the embodiment of the invention, when the air conditioner is in the heating mode, the PID control operation can be carried out according to the current humidity value and the target humidity value in the action area, and the working frequency of the compressor is determined, so that the compressor of the air conditioner is controlled.

Fig. 1 is a flowchart illustrating an air conditioner control method according to an exemplary embodiment. As shown in fig. 1, the process of the air conditioning control includes:

step 101: and acquiring a current humidity value in the air conditioning action area in the heating mode, and acquiring a current absolute humidity difference value between the current humidity value and the target humidity value.

In the embodiment of the invention, the working mode corresponding to the air conditioner is already set to the heating mode, that is, the air conditioner may enter the heating mode or be already in the heating mode for operation.

At this time, the current humidity value in the air conditioning action area may be obtained, and there may be various corresponding manners, for example: and acquiring a current humidity value in the action area through a humidity sensor, or calculating through a temperature value in the action area, a coil temperature value, the working frequency of the compressor and the like to acquire the current humidity value.

Certainly, a target humidity value is configured in advance, the target humidity value can be set manually by a user, and the air conditioner can be obtained according to the configuration after the target humidity value is configured according to the region where the air conditioner is located, the current season and the like.

After the current humidity value and the target humidity value are known, a current absolute humidity difference between the current humidity value and the target humidity value can be obtained, namely, the current absolute humidity difference Pn is equal to i, and the current humidity value is equal to i, namely, the target humidity value i. Where n is the number of times corresponding to PID control, and is an integer such as 0, 1, 2 …, or the like, which is gradually added from 0.

Step 102: and when the current absolute humidity difference value meets the set condition matched with the heating mode of the air conditioner, carrying out the current times of Proportional Integral Derivative (PID) control operation according to the current absolute humidity difference value to obtain the PID output quantity.

Since the air conditioner is set to the heating mode, since the PID control is performed in the heating mode, the PID (proportional, integral, derivative) control in the embodiment of the present invention may be performed if the current absolute humidity difference is greater than zero.

That is, the current absolute humidity is an absolute value and is greater than zero, and it can be determined that the current absolute humidity difference value meets the set condition matched with the heating mode of the air conditioner. At this time, the PID control operation of the current times may be performed according to the current absolute humidity difference to obtain the PID output, which preferably includes: correcting a proportional parameter, an integral parameter and a differential parameter in PID control operation according to the current absolute humidity difference value, the stored previous absolute temperature difference value and the stored previous absolute temperature difference value to obtain a corrected proportional parameter, a corrected integral parameter and a corrected differential parameter; correcting the output state value of PID control according to the corrected proportion parameter, the corrected integral parameter and the corrected differential parameter to obtain the current output quantity; and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.

In the implementation, the current absolute humidity difference Pn can be stored after being obtained, so that the current absolute humidity difference Pn corresponding to each PID control is stored, and therefore the previous absolute temperature difference value can be Pn-1, and the previous absolute temperature difference value can be Pn-2.

Therefore, the current deviation Wn ═ set humidity — indoor humidity | × 10 ═ Pn ═ 10 can be set; the previous deviation Wn-1 ═ Pn-1 × 10 and the previous deviation Wn-2 ═ Pn-2 × 10. Thus, the difference Dn-1 of the previous deviation is equal to Wn-1-Wn-2, while the difference Dn-1 of the current deviation is equal to Wn-Wn-1.

Since the PID control operation is performed according to the humidity, in the PID control, the proportional control amount Hzkp, the integral control amount Hzki, the derivative control amount Hzkd, and the corrected output amount Hzout are output, and the corrected output amount Hzout1 is output in the previous time, so that the filtered output amount Hzoutf, which is the PID output amount in this embodiment, is output.

Wherein, the PID control operation can comprise:

Hzkp＝Kp*Dn；

Hzki＝Ki*Wn；

Hzkd＝Kd*(Dn－Dn-1)；

ΔFn＝Hzkp+Hzki+Hzkd；

Hzout＝Out_gain*ΔFn；

Hzoutf＝(Hzout+(Hzout1*2))/3。

therefore, the PID output amount Hzoutf corresponding to the current absolute humidity difference can be obtained through the PID control operation.

Step 103: and determining the first working frequency of the compressor corresponding to the current absolute humidity difference value according to the heating mode of the air conditioner, the maximum working frequency of the compressor corresponding to the heating mode, the obtained actual return working frequency of the compressor and the corresponding times of PID control.

In the embodiment of the present invention, the operating frequency of the compressor is controlled through PID calculation, specifically, a certain operating frequency of the compressor is corrected according to the PID output quantity Hzoutf, that is, the first operating frequency of the compressor is corrected according to the PID output quantity Hzoutf. The first operating frequency of the compressor may not be completely the same according to different operating conditions of the air conditioner, and therefore, the first operating frequency Sn of the compressor corresponding to the current absolute humidity difference value needs to be determined according to the heating mode of the air conditioner, the maximum operating frequency of the compressor corresponding to the heating mode, the obtained actual return operating frequency of the compressor, and the number of times corresponding to PID control.

In this embodiment, after the air conditioner enters the heating mode, each time PID control is performed, the number of times corresponding to PID control may need to be increased by 1, that is, the number of times n corresponding to PID control starts from 0, and is gradually increased by 1 each time. In general, when n >0, i.e., after the PID control is continuously performed, the acquired actual return operating frequency of the compressor may be determined as the first operating frequency Sn. However, when n is 0, that is, when the PID control corresponds to zero times, the determining of the first operating frequency of the compressor corresponding to the current absolute humidity difference may include: when a compressor of the air conditioner starts to operate at the maximum working frequency of a heating mode and the time when the current absolute humidity difference value is less than or equal to a first set value exceeds a set time, determining the obtained actual return working frequency of the compressor as the first working frequency; and when the compressor of the air conditioner does not operate in the heating mode and the current absolute humidity difference value is less than or equal to the first set value and greater than the second set value, determining the first set proportion value of the maximum working frequency as the first working frequency. When the compressor of the air conditioner does not operate in the heating mode and the current absolute humidity difference value is smaller than or equal to a second set value, determining a second set proportion value of the maximum working frequency as a first working frequency; the first set value is greater than the second set value, and the first set proportion value is greater than the second set proportion value.

For example: the first set value is 6, the second set value is 4.5, the first set proportion value is 70%, and the second set proportion value is 50%. Thus, the air conditioner is powered on and started up for the first time, or the air conditioner is switched to the mode and is just switched to the heating mode, or the air conditioner is started up again after being turned off, at this time, the air conditioner does not operate in the heating mode, and does not perform PID control, that is, the number n of times corresponding to PID control is zero, if P0 is greater than 6, the humidity may be relatively high, at this time, the compressor of the air conditioner needs to start to operate at the maximum operating frequency of the heating mode immediately, so that the humidity in the environment can be reduced as much as possible, so that the humidity value is slowly reduced, so that when the compressor of the air conditioner is started to operate at the maximum operating frequency of the heating mode, and the time of the current absolute humidity difference value if P0 is less than or equal to 6 exceeds a set time, for example, for more than 50 seconds, so that the obtained actual.

Or, the air conditioner is powered on and started up for the first time, or the air conditioner is switched to the heating mode immediately after the mode is switched, or the air conditioner is started up again after the air conditioner is turned off, at this time, the air conditioner does not operate in the heating mode, and does not perform PID control, that is, the number n of times corresponding to PID control is zero, and if 4.5< P0 is less than or equal to 6, 70% of the maximum working frequency can be directly determined as the first working frequency Sn.

Or, the air conditioner is powered on and started up for the first time, or the air conditioner is switched to the heating mode immediately after the mode is switched, or the air conditioner is started up again after the air conditioner is shut down, at this time, the air conditioner does not operate in the heating mode, and does not perform PID control, that is, the number n of times corresponding to PID control is zero, and if P0 is less than or equal to 4.5, 50% of the maximum operating frequency can be directly determined as the first operating frequency Sn.

Step 104: and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, and controlling the compressor to operate according to the current working frequency.

In this embodiment, Fn is Sn + Hzoutf, where Fn is the current operating frequency, Sn is the first operating frequency, and Hzoutf is the PID output. I.e., the current operating frequency is determined based on the first operating frequency and Hzoutf. Therefore, the PID output quantity obtained in step 102 may be changed from the sequence of determining the first operating frequency in step 103, that is, when the current absolute humidity difference value satisfies the setting condition matched with the heating mode of the air conditioner, the first operating frequency may be determined first, and then the PID output quantity is obtained.

And obtaining the current working frequency Sn, and controlling the compressor to operate according to the current working frequency.

Therefore, in the embodiment of the invention, the air conditioner in the heating mode can perform PID control operation according to the current humidity value and the target humidity value in the action area, and determine the working frequency of the compressor, so as to control the compressor of the air conditioner, thereby not only further improving the pertinence and the accuracy of air conditioner control, but also effectively adjusting the humidity in the action area and improving the air comfort level in the action area due to the fact that the air conditioner can adjust the working frequency of the compressor according to the humidity in an environment with higher humidity.

For example: immediately after the air conditioner is switched to the heating mode, n is 0, and after the current humidity value is obtained, the obtained current absolute humidity difference P0 is greater than 6, so that the compressor of the air conditioner starts to operate at the maximum operating frequency of the heating mode, and when the time P0 ≦ 6 exceeds a set time, for example, 40S, the obtained actual return operating frequency of the compressor may be determined as the first operating frequency S0, and n is 0, so that the previous absolute temperature difference and the previous absolute temperature difference are not equal to 0, that is, 0, and similarly, the output amount hzoutt 1 after the previous output correction is not available, at this time, Hzoutf is 0, and then, when the current operating frequency F0 is S0+0, that is, when n is 0, F0 is S0, the compressor may be controlled to operate according to the current operating frequency.

After the PID control operation, the number of times corresponding to the PID control needs to be increased by 1, that is, n is 1, at this time, since the air conditioner is already in the heating mode, when P1>0 and n >0, the obtained actual return operating frequency of the compressor may be determined as the first operating frequency S1, at this time, according to the formula in step 102, Hzoutf may be obtained, and then, the current operating frequency F1 is S1+ Hzoutf, that is, the compressor is controlled to operate according to the current operating frequency. Thus, the PID control is continued to be operated.

Or, immediately after the air conditioner is switched to the heating mode, n is 0, the current absolute humidity difference P0>0 obtained after the current humidity value is obtained meets the setting condition matched with the heating mode of the air conditioner, and 4.5< P0 ≦ 6, at this time, 70% of the maximum operating frequency is determined as the first operating frequency, n is 0, Hzoutf may be obtained according to the formula in step 102, and then, the current operating frequency F0 is S0+0, that is, the compressor is controlled to operate according to the current operating frequency. After the PID control operation, the number of times corresponding to the PID control needs to be increased by 1, that is, n is 1, at this time, P1 is >0, and n is >0, so that the obtained actual return operating frequency of the compressor can be determined as the first operating frequency S1, at this time, Hzoutf can be obtained according to the formula in step 102, and then, the current operating frequency F1 is S1+ Hzoutf, that is, the compressor is controlled to operate according to the current operating frequency. Thus, the PID control is continued to be operated.

Or, immediately after the air conditioner is switched to the heating mode, n is 0, the current absolute humidity difference P0>0 obtained after the current humidity value is obtained meets the setting condition matched with the heating mode of the air conditioner, and P0 is not more than 4.5, at this time, 50% of the maximum operating frequency is determined as the first operating frequency, n is 0, Hzoutf can be obtained as 0 according to the formula in step 102, and then, the current operating frequency F0 is S0+0, that is, the compressor is controlled to operate according to the current operating frequency. After the PID control operation, the number of times corresponding to the PID control needs to be increased by 1, that is, n is 1, at this time, P1 is >0, and n is >0, so that the obtained actual return operating frequency of the compressor can be determined as the first operating frequency S1, at this time, Hzoutf can be obtained according to the formula in step 102, and then, the current operating frequency F1 is S1+ Hzoutf, that is, the compressor is controlled to operate according to the current operating frequency. Thus, the PID control is continued to be operated.

In the above embodiment, when n >0, the acquired actual return operating frequency of the compressor may be determined as the first operating frequency S1. However, in another embodiment of the present invention, when the PID control is performed for a number of times other than zero, determining the first operating frequency of the compressor corresponding to the current absolute humidity difference further includes: and if the running time of the compressor in the heating mode is less than the set time and the actual return working frequency of the compressor is less than the first working frequency of the previous PID control, determining the first working frequency of the previous PID control as the first working frequency of the current PID control. For example: the first operating frequency of the previous PID control is 70% of the maximum operating frequency of the heating mode, and the operation time of the compressor in the heating mode is less than 2 minutes, and the actual return operating frequency is less than 70% of the maximum operating frequency, then 70% of the maximum operating frequency is still determined as the first operating frequency of the present PID control. Alternatively, the first operating frequency of the previous PID control is 50% of the maximum operating frequency of the heating mode, and the operation time of the compressor in the heating mode is less than 2 minutes, and the actual return operating frequency is less than 70% of the maximum operating frequency, then 50% of the maximum operating frequency is still determined as the first operating frequency of the present PID control.

Of course, in another embodiment of the present invention, the air conditioner may also be operated in the heating mode for a period of time, if the current absolute humidity difference satisfies the set condition matching the operation mode of the air conditioner, the number of times corresponding to the PID control is zero initially, and determining the first operating frequency of the compressor corresponding to the current absolute humidity difference further includes: when a compressor of the air conditioner operates for the first time in the heating mode, determining a third proportional value corresponding to the outdoor temperature value, and determining the third proportional value of the maximum working frequency as a first working frequency of the compressor operating for the first time; when a compressor of the air conditioner operates in a heating mode and a time interval between the current operation and the previous operation of the compressor is smaller than or equal to a set interval value, correcting a first working frequency corresponding to the previous operation according to a set decreasing frequency amplitude value to obtain a first working frequency corresponding to the current operation; when the compressor of the air conditioner operates in the heating mode and the time interval between the current operation and the previous operation of the compressor is larger than a set interval value, determining the first working frequency corresponding to the previous operation as the first working frequency corresponding to the current operation.

For example: when the PID control is performed, the output quantity of the PID is obtained according to the formula in step 102, and the outdoor temperature value Tao is obtained, and then the first operating frequency is determined according to the outdoor temperature value Tao.

The air conditioner is powered on and started, or the air conditioner is switched to the mode and is just switched to the heating mode, or the air conditioner is started again after being shut down, and the like, wherein n is 0. That is, when the compressor is first turned on or is turned on again after the compressor is turned off, the PID control is restarted, and n is equal to 0.

In the embodiment of the invention, the compressor can be determined to run for the first time under the heating mode when the compressor is started for the first time or the temperature sensor of the air conditioner is turned ON again after being turned OFF through the arrangement of the remote controller. Since n is 0, if Hzoutf is 0, F0 is S0. And the first operating frequency may be obtained according to the following formula.

F0＝S0＝fmax*0.7*(A-K*Tao)。

Wherein A is a constant, preferably 0.6, in the range of 0.1-1; k is a constant and is the change rate of ON initial frequency of the heating temperature sensor, and the preferred range is 0.03 and 0.010-0.050; fmax is the maximum operating frequency in heating mode. Therefore, according to the preferred values, the first operating frequency S0 and the current operating frequency F0 can be determined.

F0 ═ S0 ═ fmax 0.7 ═ 0.6 to 0.03 ═ Tao. In this way, the third ratio value 0.7 (0.6-0.03 Tao) may be determined, and in particular, refer to fig. 1-1, i.e., fig. 1-1 is a schematic diagram illustrating a correspondence relationship between a first operating frequency and an outdoor temperature according to an exemplary embodiment.

In this embodiment, the temperature sensor of the air conditioner may be turned OFF due to a change in the environment and then turned ON again, so that the compressor is operated in the heating mode, and may be turned OFF or turned ON due to a change in the environment, and at this time, the compressor is again operated, and at this time, although the number of times n of performing the PID control is 0, the compressor is not operated in the heating mode for the first time. At this time, if the time interval between the current operation and the previous operation is less than or equal to the set interval value, for example, 10 minutes, the first operating frequency corresponding to the previous operation may be corrected according to the set decreasing frequency amplitude, so as to obtain the first operating frequency corresponding to the current operation. For example: s0 ═ S0' -5 hz. And if the time interval between the current operation and the previous operation is greater than 10 minutes, determining the first operating frequency corresponding to the previous operation as the first operating frequency corresponding to the current operation, namely S0 is equal to S0 ', wherein S0' is the first operating frequency of the previous operation.

The following operational flows are integrated into specific embodiments to illustrate the control method provided by the embodiments of the present disclosure.

In this embodiment, the first set value is 6, the second set value is 4, the first set ratio value is 75%, and the second set ratio value is 50%. The correspondence between the first operating frequency and the outdoor temperature may be as shown in fig. 1-1.

Fig. 2-1 is a flowchart illustrating an air conditioning control method according to an exemplary embodiment. Fig. 2-2 is a flowchart illustrating an air conditioning control method according to an exemplary embodiment. As shown in fig. 2-1 and 2-2, the air conditioning control process includes:

step 201: and acquiring a current humidity value in the air conditioning action area in the heating mode, and acquiring a current absolute humidity difference Pn between the current humidity value and a target humidity value.

In this embodiment, the humidity sensor obtains a current humidity value in an air conditioning action area, and obtains a current absolute humidity difference Pn ═ i current humidity value — target humidity value i. Where n is the number of times corresponding to PID control, and n is an integer such as 0, 1, 2 …, or the like.

Step 202: and performing the Proportional Integral Derivative (PID) control operation of the current times according to the current absolute humidity difference value to obtain a PID output quantity Hzoutf.

In the heating mode, PID control may be performed according to humidity, that is, Pn may be obtained to confirm that the set condition matching the heating mode of the air conditioner is satisfied, that is, Hzoutf may be obtained, and the process of obtaining Hzoutf may be obtained, where the formula may be as described in step 102, and is not described in detail again. Where n is 0, Hzoutf is 0.

Step 203: determine whether n is 0? If so, go to step 204, otherwise, go to step 212.

The initial first operating frequency may be determined according to different operating conditions of the compressor, and different Pn.

Step 204: is the air conditioning compressor judged to have been operated in the heating mode? If not, go to step 205, and if so, go to step 210.

Step 205: determine Pn >6 is true? If so, go to step 206, otherwise, go to step 207.

Step 206: the compressor is controlled to start operation at the maximum operating frequency of the heating mode. Returning to step 201.

Step 207: determine if Pn >4 is true? If so, go to step 208, otherwise, go to step 209.

Step 208: 75% of the maximum operating frequency is determined as the first operating frequency. Proceed to step 218.

Step 209: the first operating frequency was determined to be 50% of the maximum operating frequency. Proceed to step 218.

Step 210: is the compressor started at the maximum operating frequency of the heating mode? If so, go to step 211, otherwise, go to step 213.

Step 211: determine if Pn ≦ 6 time exceeds 30 s? If yes, go to step 212, otherwise, go back to step 201.

Step 212: the acquired actual return operating frequency of the compressor is determined as a first operating frequency. Proceed to step 218.

Step 213: is it judged whether the compressor is operated for the first time in the heating mode? If so, go to step 214, otherwise go to step 215.

Step 214, determining a first working frequency according to the obtained outdoor temperature Tao. Proceed to step 218.

The first operating frequency may be determined according to S0 fmax 0.7 (0.6-0.03 Tao), as shown in fig. 1-1.

Step 215: is it determined whether the time interval between the present operation and the previous operation of the compressor is greater than the set interval value? If so, go to step 216, otherwise, go to step 217. Proceed to step 218.

Step 216: and determining the first working frequency corresponding to the previous operation as the first working frequency corresponding to the current operation.

For example: s0 ═ S0 ', where S0' is the first operating frequency of the previous operation.

Step 217: and correcting the first working frequency corresponding to the previous operation according to the set decreasing frequency amplitude to obtain the first working frequency corresponding to the current operation.

For example: s0 ═ S0 '-3 hz, where S0' is the first operating frequency of the previous run.

Step 218: and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, controlling the compressor to operate according to the current working frequency, and controlling n +1 after the PID control.

It can be seen that, in this embodiment, the air conditioner in the heating mode can perform PID control operation according to the current humidity value and the target humidity value in the action area, and determine the operating frequency of the compressor, so as to control the compressor of the air conditioner.

In another embodiment, the time is set to 2 minutes, which is a threshold corresponding to the running time of the compressor in the thermal mode.

Fig. 3 is a flowchart illustrating an air conditioner control method according to an exemplary embodiment. As shown in fig. 3, the process of the air conditioning control includes:

step 301: and acquiring a current humidity value in the air conditioning action area in the heating mode, and acquiring a current absolute humidity difference Pn between the current humidity value and a target humidity value.

Step 302: and performing the Proportional Integral Derivative (PID) control operation of the current times according to the current absolute humidity difference value to obtain a PID output quantity Hzoutf.

In the heating mode, PID control may be performed according to humidity, that is, Pn may be obtained to confirm that a set condition matching the heating mode of the air conditioner is satisfied, that is, Hzoutf may be obtained, and the procedure of Hzoutf may be obtained, where the formula may be as described in step 102, where when n is 0, Hzoutf is 0, and the description is not repeated.

Step 303: determine whether n is 0? If so, go to step 304, otherwise, go to step 305.

Step 304: and determining a first working frequency of the compressor corresponding to the current absolute humidity difference value according to the heating mode of the air conditioner, the maximum working frequency of the compressor corresponding to the heating mode and the acquired actual return working frequency of the compressor. Proceed to step 309.

The number of times n corresponding to the PID control is 0, and the determination process of the first operating frequency may be identical to the process described in the above embodiment, and will not be described again.

Step 305: is it judged whether or not the operation time of the compressor of the air conditioner in the heating mode exceeds 2 minutes? If not, go to step 306, and if so, go to step 308.

Step 306: is it determined whether the actual return operating frequency of the compressor is less than the first operating frequency of the previous PID control? If yes, go to step 307, otherwise go to step 308.

Step 307: and determining the first working frequency of the previous PID control as the first working frequency of the current PID control. Proceed to step 309.

Step 308: and determining the actual return working frequency of the compressor as the first working frequency of the PID control. Proceed to step 309.

Step 309: and correcting the first working frequency according to the PID output quantity to obtain the current working frequency of the compressor, controlling the compressor to operate according to the current working frequency, and controlling n +1 after the PID control.

According to the air conditioning control process, an air conditioning control device can be constructed.

Fig. 4 is a block diagram illustrating an air conditioning control apparatus according to an exemplary embodiment. As shown in fig. 4, the apparatus may include: a heating acquisition unit 100, a heating output determination unit 200, a heating determination unit 300, and a heating control unit 400, wherein,

a heating obtaining unit 100, configured to obtain a current humidity value in an air conditioning action area in a heating mode, and obtain a current absolute humidity difference between the current humidity value and a target humidity value.

And a heating output unit 200, configured to perform PID control operation for the current times according to the current absolute humidity difference when the current absolute humidity difference meets a set condition matched with a heating mode of the air conditioner, so as to obtain a PID output quantity.

And a heating determining unit 300, configured to determine a first operating frequency of the compressor corresponding to the current absolute humidity difference according to a heating mode of the air conditioner, a maximum operating frequency of the compressor corresponding to the heating mode, an obtained actual return operating frequency of the compressor, and a number of times corresponding to PID control.

And the heating control unit 400 is configured to correct the first operating frequency according to the PID output quantity to obtain a current operating frequency of the compressor, and control the compressor to operate according to the current operating frequency.

In an embodiment of the present invention, the heating output unit 200 is specifically configured to correct the proportional parameter, the integral parameter, and the differential parameter in the PID control operation according to the current absolute humidity difference, the stored previous absolute temperature difference, and the stored previous absolute temperature difference, so as to obtain a corrected proportional parameter, a corrected integral parameter, and a corrected differential parameter; correcting the output state value of PID control according to the corrected proportion parameter, the corrected integral parameter and the corrected differential parameter to obtain the current output quantity; and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.

In an embodiment of the present invention, the heating determination unit 300 includes:

determining the first operating frequency of the compressor corresponding to the current absolute humidity difference value when the PID control corresponds to the number of times of zero includes:

when a compressor of the air conditioner starts to operate at the maximum working frequency of a heating mode and the time when the current absolute humidity difference value is less than or equal to a first set value exceeds a set time, determining the obtained actual return working frequency of the compressor as the first working frequency;

when a compressor of the air conditioner does not operate in a heating mode and the current absolute humidity difference value is smaller than or equal to a first set value and larger than a second set value, determining a first set proportion value of the maximum working frequency as a first working frequency;

when the compressor of the air conditioner does not operate in the heating mode and the current absolute humidity difference value is smaller than or equal to a second set value, determining a second set proportion value of the maximum working frequency as a first working frequency;

the first set value is greater than the second set value, and the first set proportion value is greater than the second set proportion value.

In an embodiment of the present invention, when the PID control corresponds to zero times, determining the first operating frequency of the compressor corresponding to the current absolute humidity difference further includes:

when a compressor of the air conditioner operates for the first time in the heating mode, determining a third proportional value corresponding to the outdoor temperature value, and determining the third proportional value of the maximum working frequency as a first working frequency of the compressor operating for the first time;

when a compressor of the air conditioner operates in a heating mode and a time interval between the current operation and the previous operation of the compressor is smaller than or equal to a set interval value, correcting a first working frequency corresponding to the previous operation according to a set decreasing frequency amplitude value to obtain a first working frequency corresponding to the current operation;

when the compressor of the air conditioner operates in the heating mode and the time interval between the current operation and the previous operation of the compressor is larger than a set interval value, determining the first working frequency corresponding to the previous operation as the first working frequency corresponding to the current operation.

The above-described air conditioning control apparatus will be described below with reference to specific embodiments.

In this embodiment, the first set value is 6, the second set value is 4.5, the first set proportion value is 70%, and the second set proportion value is 50%. The correspondence between the first operating frequency and the outdoor temperature may be as shown in fig. 1-1.

Fig. 5 is a block diagram illustrating an air conditioning control apparatus according to an exemplary embodiment. As shown in fig. 5, the apparatus may include: the present invention relates to a heating apparatus, and more particularly, to a heating apparatus including a heating unit 100, a heating output unit 200, a heating determination unit 300, and a heating control unit 400, wherein the heating determination unit 300 includes: a heating first determination sub-unit 310, a heating second determination sub-unit 320, a heating third determination sub-unit 330, a heating fourth determination sub-unit 340, a heating fifth determination sub-unit 350, and a heating sixth determination sub-unit 360.

In this way, the heating obtaining unit 100 may first obtain the current humidity value in the air conditioning operation area in the heating mode, and obtain the current absolute humidity difference Pn between the current humidity value and the target humidity value. Thus, the PID control can be performed in the heating mode. The heating output module 200 may perform PID control operation of the current number of times according to the current absolute humidity difference, to obtain PID output amount Hzoutf.

When the number n of times corresponding to the PID control is zero, the compressor of the air conditioner starts to operate at the maximum operating frequency of the heating mode, and Pn is less than or equal to 6 and exceeds the set time length, for example, 35s, the heating first determining subunit 310 may determine the acquired actual return operating frequency of the compressor as the first operating frequency.

When the number n of times corresponding to the PID control is zero, the compressor of the air conditioner is not operated in the heating mode, and 4.5< Pn ≦ 6, the heating second determining subunit 320 may determine 75% of the maximum operating frequency as the first operating frequency.

When the number of times n corresponding to the PID control is zero, the compressor of the air conditioner is not operated in the heating mode, and Pn is not greater than 4.5, the third heating determining subunit 330 may determine 50% of the maximum operating frequency as the first operating frequency.

When the PID control corresponds to the number of times n of zero, the compressor of the air conditioner is operated in the heating mode and is operated for the first time, and at this time, the fourth heating determining subunit 340 may obtain the outdoor temperature Tao, and may determine the third proportional value according to 0.7 (0.6 to 0.03) Tao as shown in fig. 1-1, such that the first operating frequency is the third proportional value of the maximum operating frequency.

When the number n of times corresponding to the PID control is zero, the compressor of the air conditioner is already operated in the heating mode, and the time interval between the current operation and the previous operation of the compressor is less than or equal to the set interval value, the fifth heating determining subunit 350 may modify the first operating frequency corresponding to the previous operation according to the set decreasing frequency amplitude, to obtain the first operating frequency corresponding to the current operation, for example, S0 ═ S0 '-5 hz, where S0' is the first operating frequency of the previous operation.

When the number n of times corresponding to the PID control is zero, the compressor of the air conditioner is already operated in the heating mode, and the time interval between the current operation and the previous operation of the compressor is greater than the set interval value, the heating sixth determining subunit 360 may determine the first operating frequency corresponding to the previous operation as the first operating frequency corresponding to the current operation, for example, S0 is S0 ', where S0' is the first operating frequency of the previous operation.

When the number of times n corresponding to the PID control is not zero, that is, greater than zero, the heating determination module 300 may directly determine the actual return operating frequency of the compressor as the first operating frequency. Or, when the number of times corresponding to the PID control is not zero, the operation time of the compressor in the heating mode is less than the set time, and the actual return operating frequency of the compressor is less than the first operating frequency of the previous PID control, the heating determining unit 300 may further determine the first operating frequency of the previous PID control as the first operating frequency of the current PID control.

Accordingly, the heating control module 400 may correct the first operating frequency according to the PID output amount to obtain the current operating frequency of the compressor, and control the compressor to operate according to the current operating frequency. After this PID control, n +1 may be set.

In an embodiment of the present invention, an air conditioner control device is provided, which is used for an air conditioner, and is characterized in that the device includes:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

An embodiment of the present invention provides a computer-readable storage medium, on which computer instructions are stored, wherein the instructions, when executed by a processor, implement the steps of the above-mentioned method.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A method of air conditioning control, the method comprising:

2. The method of claim 1, wherein said performing a current number of PID control operations based on said current absolute humidity difference to obtain a PID output comprises:

correcting the proportional parameter, the integral parameter and the differential parameter in the PID control operation according to the current absolute humidity difference value, the stored previous absolute humidity difference value and the stored previous absolute humidity difference value to obtain a corrected proportional parameter, a corrected integral parameter and a corrected differential parameter;

3. The method as claimed in claim 1, wherein the determining the first operating frequency of the compressor corresponding to the current absolute humidity difference value when the PID control corresponds to the number of times of zero includes:

4. The method as claimed in claim 3, wherein the determining the first operating frequency of the compressor corresponding to the current absolute humidity difference value when the PID control corresponds to the number of times of zero further comprises:

5. An apparatus for air conditioning control, the apparatus comprising:

6. The apparatus of claim 5,

the heating output unit is specifically configured to correct the proportional parameter, the integral parameter, and the differential parameter in the PID control operation according to the current absolute humidity difference, the stored previous absolute humidity difference, and the stored previous absolute humidity difference, so as to obtain a corrected proportional parameter, a corrected integral parameter, and a corrected differential parameter; correcting the output state value of PID control according to the correction proportion parameter, the correction integral parameter and the correction differential parameter to obtain the current output quantity; and obtaining the PID output quantity according to the current output quantity and the saved previous output quantity.

7. The apparatus of claim 5, wherein the heating determination unit comprises:

8. The apparatus of claim 7, wherein the heating determination unit further comprises:

9. An apparatus for controlling an air conditioner, for an air conditioner, the apparatus comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

10. A computer-readable storage medium having stored thereon computer instructions, which, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 4.