CN112728736A

CN112728736A - Air conditioner control method and device, air conditioner and computer readable storage medium

Info

Publication number: CN112728736A
Application number: CN202011619659.7A
Authority: CN
Inventors: 方威; 李熵
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-04-30
Anticipated expiration: 2040-12-31
Also published as: CN112728736B

Abstract

The embodiment of the invention discloses an air conditioner control method, an air conditioner control device, an air conditioner and a computer readable storage medium, wherein the method comprises the following steps: after the air conditioner is detected to start the fresh air function, adjusting a fresh air valve of the air conditioner to a first target opening degree; acquiring indoor environment temperature, fresh air speed and indoor relative humidity, and calculating the average value of the temperature difference between the indoor environment temperature and the fresh air temperature every second preset time; if the temperature difference mean value meets a first preset condition, acquiring the operation time of the current fresh air function, determining the current fresh air operation interval according to the operation time, determining the condensation risk level corresponding to the current fresh air operation interval according to the indoor environment temperature, the fresh air speed and the indoor relative humidity, and determining the opening degree of a fresh air valve in the next fresh air operation interval according to the condensation risk level. The invention is used for preventing the air conditioner from generating fresh air condensation and fresh air backflow.

Description

Air conditioner control method and device, air conditioner and computer readable storage medium

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner control method and device, an air conditioner and a computer readable storage medium.

Background

The air conditioner is generally in the closed place at the during operation, for making the user that is in the closed place can not feel bored, can load the new trend system on the air conditioner and acquire the new trend from outdoor and carry to indoor, when adjusting indoor ambient temperature, can also keep indoor ambient air fresh, makes the user obtain better use and experiences.

However, for the air conditioner loaded with the fresh air system, because of temperature difference of indoor and outdoor environments, condensation is easily generated on the surface of a fresh air pipeline and at a fresh air outlet when fresh air is introduced from the outdoor, and the air conditioner is damaged; on the other hand, when the fresh air function is closed, due to temperature difference, cold air outdoors in winter easily flows backwards through the fresh air pipeline to enter indoors.

Disclosure of Invention

In view of the above, embodiments of the present invention are directed to an air conditioner control method and apparatus, an air conditioner, and a computer-readable storage medium.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides an air conditioner control method, including:

after the air conditioner is detected to start a fresh air function, adjusting a fresh air valve of the air conditioner to a first target opening degree;

acquiring indoor environment temperature, fresh air speed and indoor relative humidity, and calculating the average value of the temperature difference between the indoor environment temperature and the fresh air temperature every second preset time;

if the temperature difference mean value meets a first preset condition, acquiring the operation time of the current fresh air function, determining the current fresh air operation interval according to the operation time, determining the condensation risk level corresponding to the current fresh air operation interval according to the indoor environment temperature, the fresh air wind speed and the indoor relative humidity, and determining the opening degree of the fresh air valve in the next fresh air operation interval according to the condensation risk level.

In some optional embodiments of the invention, the method further comprises:

if the average temperature difference does not meet a first preset condition, acquiring the outdoor environment temperature, and judging whether a condensation condition is met according to the indoor environment temperature, the outdoor environment temperature and the indoor relative humidity; and when the condensation condition is judged to be met, controlling to close the fresh air function, and adjusting the fresh air valve to a second target opening degree.

In some optional embodiments of the invention, the air conditioner is provided with an energy storage unit, and the method further comprises:

after the air conditioner starts the fresh air function, when the air conditioner is detected to be abnormally powered down, the energy storage unit is used for supplying power, and the fresh air valve is adjusted to a second target opening degree.

In some optional embodiments of the present invention, the determining a condensation risk level corresponding to a current fresh air operation interval according to the indoor environment temperature, the fresh air wind speed, and the indoor relative humidity includes:

calculating the average value of the indoor relative humidity within the second preset time;

and calculating a humidity threshold according to the temperature difference mean value and the fresh air speed, and determining a condensation risk level corresponding to the current fresh air operation interval according to the difference value of the indoor relative humidity mean value and the humidity threshold.

In some optional embodiments of the invention, the calculating a humidity threshold according to the temperature difference mean value and the fresh wind speed includes:

and acquiring a preset interval corresponding to the temperature difference mean value, determining a correction coefficient according to the corresponding preset interval, and determining the humidity threshold according to the temperature difference mean value, the fresh air speed and the correction coefficient.

In some optional embodiments of the present invention, the determining, according to the difference between the indoor relative humidity mean value and the humidity threshold, a condensation risk level corresponding to the current fresh air operation interval includes:

under the condition that the current fresh air operation interval is the first fresh air operation interval after the fresh air function is opened:

when the difference is smaller than or equal to a first preset humidity, judging that the condensation risk level corresponding to the current fresh air operation interval is a first risk level;

when the difference value is greater than the first preset humidity and less than or equal to a second preset humidity, judging that the condensation risk level corresponding to the current fresh air operation interval is a second risk level;

when the difference is larger than the second preset humidity, judging that the condensation risk level corresponding to the current fresh air operation interval is a fourth risk level;

under the condition that the current fresh air operation interval is the second fresh air operation interval after the fresh air is opened:

when the difference value is greater than the first preset humidity and less than or equal to a third preset humidity, determining that the condensation risk level corresponding to the current fresh air operation interval is a third risk level;

when the difference is larger than the third preset humidity, judging that the condensation risk level corresponding to the current fresh air operation interval is a fourth risk level;

under the circumstances of the third after and the new trend running interval after the new trend is opened in current new trend running interval:

and when the difference is greater than the first preset humidity, judging that the condensation risk level corresponding to the current fresh air operation interval is a fourth risk level.

In some optional embodiments of the present invention, the determining the opening degree of the fresh air valve in the next fresh air operation interval according to the condensation risk level includes:

if the condensation risk grade corresponding to the current fresh air operation interval is a first risk grade, the opening degree of the fresh air valve is not adjusted;

if the condensation risk grade corresponding to the current fresh air operation interval is a second risk grade, adjusting the fresh air valve in the next fresh air operation interval to a first opening degree;

if the condensation risk grade corresponding to the current fresh air operation interval is a third risk grade, adjusting the fresh air valve in the next fresh air operation interval to a second opening degree, wherein the second opening degree is smaller than the first opening degree;

and if the condensation risk grade corresponding to the current fresh air operation interval is a fourth risk grade, controlling to close the fresh air function, and adjusting the fresh air valve to a second target opening degree.

In some optional embodiments of the invention, the condensation condition comprises a plurality of condensation conditions; the plurality of condensation conditions are determined based on a temperature interval in which the outdoor ambient temperature is located, a difference between the outdoor ambient temperature and the indoor ambient temperature, and the indoor relative humidity.

In some optional embodiments of the present invention, the determining whether the condensation condition is satisfied according to the indoor ambient temperature, the outdoor ambient temperature, and the indoor relative humidity includes:

when the outdoor environment temperature is lower than a first preset temperature, if the difference value between the outdoor environment temperature and the indoor environment temperature is larger than a first difference value, judging that a condensation condition is met;

when the outdoor environment temperature is greater than or equal to the first preset temperature and less than a second preset temperature, and the indoor relative humidity is greater than or equal to a preset humidity threshold value, if the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a first difference value, determining that a condensation condition is met;

when the outdoor environment temperature is greater than or equal to the first preset temperature and less than a second preset temperature and the indoor relative humidity is less than a preset humidity threshold value, if the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a second difference value, determining that a condensation condition is met;

when the outdoor environment temperature is greater than or equal to the second preset temperature and the indoor relative humidity is greater than or equal to a preset humidity threshold value, if the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a second difference value, determining that a condensation condition is met;

and when the outdoor environment temperature is greater than or equal to the second preset temperature and the indoor relative humidity is less than a preset humidity threshold value, if the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a third difference value, judging that a condensation condition is met.

In some optional embodiments of the present invention, the controlling to turn off the fresh air function, and after adjusting the fresh air valve to the second target opening degree, the controlling further includes:

and outputting prompt information indicating that the air conditioner has the condensation risk.

In a second aspect, an embodiment of the present invention provides an air conditioner control device, including:

the first processing module is used for adjusting a fresh air valve of the air conditioner to a first target opening degree after detecting that the fresh air function of the air conditioner is started;

the second processing module is used for acquiring indoor environment temperature, fresh air wind speed and indoor relative humidity, and calculating the average value of the temperature difference between the indoor environment temperature and the fresh air temperature in a second preset time period every other first preset time period;

and the third processing module is used for acquiring the operation duration of the current fresh air function if the temperature difference mean value calculated by the second processing module meets a first preset condition, determining the current fresh air operation interval according to the operation duration, determining the condensation risk level corresponding to the current fresh air operation interval according to the indoor environment temperature, the fresh air wind speed and the indoor relative humidity acquired by the second processing module, and determining the opening degree of the fresh air valve in the next fresh air operation interval according to the condensation risk level.

In some optional embodiments of the invention, the apparatus further comprises:

the fourth processing module is configured to acquire an outdoor ambient temperature if the average value of the temperature differences calculated by the second processing module does not satisfy a first preset condition, and determine whether a condensation condition is satisfied according to the indoor ambient temperature, the outdoor ambient temperature, and the indoor relative humidity acquired by the second processing module; and also used for

And when the condensation condition is judged to be met, controlling to close the fresh air function, and adjusting the fresh air valve to a second target opening degree.

In some optional embodiments of the invention, the air conditioner is provided with an energy storage unit, and the apparatus further comprises:

and the fifth processing module is used for supplying power by using the energy storage unit and adjusting the fresh air valve to a second target opening degree when the air conditioner detects abnormal power failure after the fresh air function is started.

In some optional embodiments of the invention, the third processing module comprises:

the first processing submodule is used for calculating the average value of the indoor relative humidity within the second preset time;

and the second processing submodule is used for calculating a humidity threshold value according to the temperature difference mean value calculated by the second processing module and the fresh air speed obtained by the second processing module, and determining a condensation risk level corresponding to the current fresh air operation interval according to the difference value between the indoor relative humidity mean value calculated by the first processing submodule and the humidity threshold value.

In some optional embodiments of the invention, the second processing sub-module comprises:

and the third processing submodule is used for acquiring a preset interval corresponding to the temperature difference mean value calculated by the second processing module, determining a correction coefficient according to the corresponding preset interval, and determining the humidity threshold according to the temperature difference mean value, the fresh air speed and the correction coefficient.

In some optional embodiments of the invention, the second processing sub-module further comprises:

the fourth processing submodule is used for the condition that the current fresh air operation interval is the first fresh air operation interval after the fresh air function is opened:

when the difference is larger than the second preset humidity, judging that the condensation risk level corresponding to the current fresh air operation interval is a fourth risk level; and also used for

when the difference is larger than the third preset humidity, judging that the condensation risk level corresponding to the current fresh air operation interval is a fourth risk level; and also used for

In some optional embodiments of the invention, the third processing module further comprises:

the fifth processing submodule is used for not adjusting the opening degree of the fresh air valve if the condensation risk level corresponding to the current fresh air operation interval is the first risk level; and also used for

If the condensation risk grade corresponding to the current fresh air operation interval is a second risk grade, adjusting the fresh air valve in the next fresh air operation interval to a first opening degree; and also used for

If the condensation risk grade corresponding to the current fresh air operation interval is a third risk grade, adjusting the fresh air valve in the next fresh air operation interval to a second opening degree, wherein the second opening degree is smaller than the first opening degree; and also used for

And if the condensation risk grade corresponding to the current fresh air operation interval is a fourth risk grade, controlling the air conditioner to close the fresh air function, and adjusting the fresh air valve to a second target opening degree.

In some optional embodiments of the invention, the fourth processing module comprises:

the sixth processing submodule is used for judging that a condensation condition is met if the difference value between the outdoor environment temperature and the indoor environment temperature is larger than a first difference value when the outdoor environment temperature is smaller than a first preset temperature; and also used for

When the outdoor environment temperature is greater than or equal to the first preset temperature, less than a second preset temperature and the indoor relative humidity is greater than or equal to a preset humidity threshold value, if the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a first difference value, judging that a condensation condition is met; and also used for

When the outdoor environment temperature is greater than or equal to the first preset temperature, less than a second preset temperature and the indoor relative humidity is less than a preset humidity threshold value, if the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a second difference value, judging that a condensation condition is met; and also used for

When the outdoor environment temperature is greater than or equal to the second preset temperature and the indoor relative humidity is greater than or equal to a preset humidity threshold value, if the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a second difference value, determining that a condensation condition is met; and also used for

In some optional embodiments of the invention, the apparatus further comprises:

and the sixth processing module is used for outputting prompt information indicating that the air conditioner has condensation risk after controlling the fresh air closing function and adjusting the fresh air valve to a second target opening degree.

In a third aspect, an embodiment of the present invention provides an air conditioner, where the air conditioner includes a fresh air valve, the air conditioner further includes a memory, a processor, and an air conditioner control program that is stored in the memory and is executable on the processor, and the air conditioner control program implements the steps of the air conditioner control method when executed by the processor.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which an air conditioner control program is stored, and the air conditioner control program, when executed by a processor, implements the steps of the air conditioner control method described above.

The embodiment of the invention provides an air conditioner control method, an air conditioner control device, an air conditioner and a computer readable storage medium, which are suitable for the air conditioner with a fresh air function, wherein a fresh air valve is arranged in a fresh air pipeline of the air conditioner, the opening of the fresh air valve in the next time period is judged according to indoor and outdoor environmental parameters at intervals, and then the fresh air volume is adjusted, so that the purpose of preventing the surface of the fresh air pipeline and an air outlet from being condensed is achieved; meanwhile, when the fresh air function is closed, the air conditioner is shut down or the power failure is abnormal, the fresh air can be effectively prevented from flowing backwards by closing the fresh air valve.

Drawings

FIG. 1 is a flowchart illustrating a method for controlling an air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a fresh air valve according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a second method for controlling an air conditioner according to an embodiment of the present invention;

FIG. 4 is a schematic illustration of the condensation conditions provided by an embodiment of the present invention;

FIG. 5 is a flowchart illustrating a method for controlling an air conditioner according to a fourth embodiment of the present invention;

fig. 6 is a schematic structural diagram of an air conditioner control device according to a fifth embodiment of the present invention;

fig. 7 is a schematic structural diagram of an air conditioner control device according to a sixth embodiment of the present invention;

fig. 8 is a schematic structural diagram of an air conditioner control device according to a seventh embodiment of the present invention;

fig. 9 is a schematic structural diagram of an air conditioner according to a fifth embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.

Fig. 1 is a flowchart of a method for implementing air conditioner control according to an embodiment of the present invention, as shown in fig. 1, including:

step 101, after detecting that the fresh air function of the air conditioner is started, adjusting a fresh air valve of the air conditioner to a first target opening degree.

In the invention, the air conditioner has a fresh air function. As an optional implementation manner, the air conditioner may automatically start the fresh air function when detecting that the air quality of the indoor environment does not satisfy the preset condition, or may start the fresh air function when receiving a fresh air start instruction sent by a user, where the user may send the fresh air start instruction through a remote controller or a preset terminal.

It should be noted that the opening of the fresh air function may be unconditional opening, because there is no condensation risk within a preset time of the fresh air opening, such as within 1 hour or within 30 minutes. After the fresh air function is started, the air conditioner conveys outdoor air (fresh air) to the indoor space through a fresh air pipeline so as to reduce the sense of oppression caused by the fact that indoor air does not circulate.

Optionally, the fresh air valve in this embodiment is as shown in fig. 2, the fresh air valve 11 is disposed in the fresh air pipeline 10, and when the air conditioner starts the fresh air function, the fresh air valve 11 is adjusted to a first target opening degree, that is, the fresh air valve 11 is rotated to a 90 ° position in fig. 2; when the fresh air function is closed or the air conditioner is shut down, the fresh air valve 11 is adjusted to the position of 0 degree. The setting of new trend valve 11 can be long according to the new trend operation on the one hand and adjust the new trend amount of wind, reaches the purpose that reduces the condensation and produce, and on the other hand can close the new trend valve in step when the new trend function is closed to prevent to lead to outdoor cold wind to flow backward and get into indoorly because indoor outer ambient temperature difference.

102, acquiring indoor environment temperature, fresh air speed and indoor relative humidity, and calculating the average value of the temperature difference between the indoor environment temperature and the fresh air temperature in a second preset time period every other first preset time period.

The air conditioner can be provided with a temperature sensor and a humidity sensor in the indoor unit to detect indoor environment temperature T1 and indoor humidity, and calculate and obtain indoor relative humidity RHI according to the indoor humidity, wherein the indoor environment temperature T1 and the indoor humidity can also be detected by a temperature and humidity sensor on wearable equipment (a bracelet, a watch and the like) or mobile equipment (a mobile phone or a Pad and the like) of an indoor user; a temperature sensor can be arranged in the fresh air pipeline to detect the fresh air temperature T0, of course, the air conditioner can be networked to directly obtain the current outdoor environment temperature T4, and the outdoor environment temperature T4 is used as the fresh air temperature T0; the fresh air speed is determined according to the fresh air windshield selected by the user when the fresh air function is started.

In one embodiment, the indoor ambient temperature T1, the fresh air temperature T0, the fresh air speed and the indoor relative humidity RHI may be obtained after the fresh air is turned on for a first preset time period; the acquisition of the indoor environment temperature T1, the fresh air temperature T0, the fresh air speed and the indoor relative humidity RHI can be real-time or timing.

The air conditioner calculates the average value of the temperature difference between the indoor environment temperature T1 and the fresh air temperature T0 in a second preset time interval at intervals of a first preset time interval

That is, the average value of the temperature difference within a second preset time period, where the first preset time period may be 1 hour (h) or 30 minutes (min), and the second preset time period may be 2min or 3min, and the second preset time period is set according to the performance of the air conditioner or the user requirement. In the embodiment, after the fresh air function is started unconditionally, the average value of the temperature difference between the indoor environment temperature T1 and the fresh air temperature T0 is calculated every 1h for 3min

Step 103, if the temperature difference mean value meets a first preset condition, acquiring the operation time of the current fresh air function, determining the current fresh air operation interval according to the operation time, determining the condensation risk level corresponding to the current fresh air operation interval according to the indoor environment temperature, the fresh air wind speed and the indoor relative humidity, and determining the opening degree of the fresh air valve in the next fresh air operation interval according to the condensation risk level.

In this embodiment, the first preset condition is whether the mean value of the temperature difference is greater than 0, and if the mean value of the temperature difference is greater than 0

And judging that the average value of the temperature differences meets a first preset condition, at the moment, acquiring the operation time length of the current fresh air function after the current fresh air function is started by the air conditioner, determining the current fresh air operation interval according to the operation time length, and determining the condensation risk level corresponding to the current fresh air operation interval according to the indoor environment temperature T1, the fresh air temperature T0, the fresh air speed and the indoor relative humidity RHI.

The fresh air operation interval can be preset, for example, the fresh air divides an interval for every 1h of operation, the fresh air operates for 1h for the first fresh air operation interval after being opened for the first time, the fresh air operates for 1h for the second fresh air operation interval after that, and the like, so that the current fresh air operation interval is determined according to the fresh air operation duration. The condensation risk levels are different in different time lengths of fresh air operation, namely the condensation risk levels determined in 1h of unconditionally opening fresh air and in 1h of subsequent continuous operation are different.

And determining the opening degree of the fresh air valve in the next fresh air operation interval according to the condensation risk grade corresponding to the current fresh air operation interval. In this embodiment, the condensation risk level includes four levels, wherein if it is determined that the condensation risk level corresponding to the current fresh air operation interval is the first risk level, the opening degree of the fresh air valve is not adjusted; if the condensation risk grade corresponding to the current fresh air operation interval is determined to be a second risk grade, adjusting the fresh air valve in the next fresh air operation interval to a first opening degree; if the condensation risk grade corresponding to the current fresh air operation interval is determined to be a third risk grade, adjusting the fresh air valve in the next fresh air operation interval to a second opening degree, wherein the second opening degree is smaller than the first opening degree; and if the condensation risk grade corresponding to the current fresh air operation interval is determined to be the fourth risk grade, controlling to close the fresh air function, and adjusting the fresh air valve to a second target opening degree.

As an optional implementation manner, the first target opening degree is a maximum opening degree of the fresh air valve, the second target opening degree is an opening degree when the fresh air valve is closed, and the first opening degree and the second opening degree may be opening degree ranges or specific opening degrees that are determined. For example, referring to fig. 2, the first target opening is that the fresh air valve rotates to a 90 ° position (maximum), the second target opening is that the fresh air valve rotates to a 0 ° position (closed), the first opening is that the fresh air valve rotates to a 60 ° position, and the second opening is that the fresh air valve rotates to a 30 ° position.

Specifically, when the fresh air function is started, the fresh air valve is controlled to a first target opening degree, for example, the fresh air valve is rotated to 90 degrees, and the fresh air valve is always in the first target opening degree within a first preset time (for example, 1h) of fresh air operation (namely, a first fresh air operation interval); after the fresh air runs for a first preset time, calculating the average value of the temperature difference between the indoor environment temperature T1 and the fresh air temperature T0 in a second preset time, judging whether the first preset condition is met, determining that the current fresh air running interval is a first fresh air running interval when the first preset condition is met, and determining the condensation risk level, such as a first risk level, corresponding to the current fresh air running interval according to the indoor environment temperature T1, the fresh air temperature T0, the fresh air speed and the indoor relative humidity RHI, so as to determine that the next fresh air running interval (namely the 1h to the 2h of the fresh air opening) is within the next fresh air running interval (namely the 1h to the 2h of the fresh air opening), and not adjusting the opening degree of a fresh;

after the air conditioner continues to operate the fresh air for 1h with the fresh air valve at the first target opening degree, the average value of the temperature difference within the second preset time length is calculated again

Determining the mean value of the temperature difference

The method comprises the steps that a first preset condition is met, at the moment, the air conditioner is located in a second fresh air operation interval, condensation risk levels corresponding to the second fresh air operation interval are determined, and the opening degree of a fresh air valve in a next fresh air operation interval (namely the 2 nd to 3 rd time when fresh air is started) is determined according to the condensation risk levels, for example, the opening degree is a third risk level, so that the fresh air valve in the next fresh air operation interval is adjusted to be in a second opening degree (30 degrees);

and then, in a third fresh air operation interval, the air conditioner continues to operate fresh air for 1h with the fresh air valve at the second opening, judges and determines the fresh air valve in the next fresh air operation interval according to the process until the fresh air function is closed or the air conditioner is closed, and simultaneously controls the fresh air valve to the second target opening (0 degree).

According to the control method of the air conditioner, after the fresh air function of the air conditioner is detected to be started, the fresh air valve of the air conditioner is adjusted to a first target opening degree; acquiring indoor environment temperature, fresh air speed and indoor relative humidity, and calculating the average value of the temperature difference between the indoor environment temperature and the fresh air temperature every second preset time; if the temperature difference mean value meets a first preset condition, acquiring the operation time of the current fresh air function, determining the current fresh air operation interval according to the operation time, determining the condensation risk level corresponding to the current fresh air operation interval according to the indoor environment temperature, the fresh air wind speed and the indoor relative humidity, and determining the opening degree of the fresh air valve in the next fresh air operation interval according to the condensation risk level. And at intervals, judging the opening of the fresh air valve in the next time period according to various environmental parameters acquired by the sensors, and further adjusting the fresh air quantity to achieve the purpose of preventing condensation on the surface of the fresh air pipeline and the air outlet.

Fig. 3 is a flowchart of a method for controlling an air conditioner according to a second embodiment of the present invention, as shown in fig. 3, including:

step 201, after detecting that a fresh air function of an air conditioner is started, adjusting a fresh air valve of the air conditioner to a first target opening degree;

step 202, acquiring indoor environment temperature, fresh air speed and indoor relative humidity, and calculating the average value of the temperature difference between the indoor environment temperature and the fresh air temperature in a second preset time period every other first preset time period;

step 203, if the temperature difference mean value meets a first preset condition, acquiring the operation time of the current fresh air function, determining the current fresh air operation interval according to the operation time, determining the condensation risk level corresponding to the current fresh air operation interval according to the indoor environment temperature, the fresh air wind speed and the indoor relative humidity, and determining the opening degree of the fresh air valve in the next fresh air operation interval according to the condensation risk level.

Step 204, if the average value of the temperature differences does not meet a first preset condition, acquiring an outdoor environment temperature, and judging whether a condensation condition is met according to the indoor environment temperature, the outdoor environment temperature and the indoor relative humidity; and when the condensation condition is judged to be met, controlling to close the fresh air function, and adjusting the fresh air valve to a second target opening degree.

The specific processes in steps 201 to 203 may refer to steps 101 to 103, which are not described herein again.

In step 204, when the average value of the temperature difference is reached

Not satisfying the first predetermined condition, i.e.

When the condensation condition is judged to be met, the air conditioner is considered to have the risk of generating condensation, the fresh air function is controlled to be closed, and the fresh air valve is adjusted to the second target opening degree (namely, the fresh air valve is closed), so that condensed water is prevented from entering an indoor unit, and the use of the air conditioner is influenced.

As an alternative embodiment, the condensation condition includes a plurality of condensation conditions, and the plurality of condensation conditions are determined based on the temperature interval in which the outdoor ambient temperature T4 is located, the difference between the outdoor ambient temperature T4 and the indoor ambient temperature T0, and the indoor relative humidity RHI.

Specifically, in step 204, the determining whether the condensation condition is satisfied according to the indoor ambient temperature, the outdoor ambient temperature, and the indoor relative humidity includes:

Under the refrigeration working condition, the first preset temperature is smaller than the second preset temperature, the numerical values of the first difference value, the second difference value and the third difference value are sequentially increased in size, and the preset humidity threshold value can be set according to practical application. Optionally, the first preset temperature is 30 ℃, the second preset temperature is 36 ℃, the first difference is 25 ℃, the second difference is 30 ℃, the third difference is 35 ℃, and the preset humidity threshold is 80%.

Specifically, referring to fig. 4, in fig. 4, X is 30 ℃, and the condensation conditions include the following five conditions:

when T4 is less than 30 ℃, if T4-T1 is more than X-5 ℃, the condensation condition is judged to be met, namely the condition corresponds to part (1) in figure 4;

when the temperature is more than or equal to 30 ℃ and less than or equal to T4 and less than or equal to 36 ℃ and the RHI is more than or equal to 80 percent, if the temperature is more than T4-T1 and more than X-5 ℃, the condition of condensation is judged to be met, namely the condition corresponding to part (2) in the figure 4;

when the temperature is more than or equal to 30 ℃ and less than T4 and less than 36 ℃ and the RHI is less than 80 percent, if the temperature is T4-T1 and is more than X ℃, the condition of condensation is judged to be met, namely the condition corresponding to part (3) in figure 4;

when T4 is not less than 36 ℃ and RHI is not less than 80%, if T4-T1 is more than X ℃, the condensation condition is determined to be satisfied, namely the condition corresponding to part (4) in FIG. 4;

when T4 is not less than 36 ℃ and RHI is less than 80%, if T4-T1 is more than X +5 ℃, the condensation condition is determined to be satisfied, namely the condition corresponding to part (5) in FIG. 4.

The air conditioner control method provided by the embodiment of the invention further comprises the steps of obtaining the outdoor environment temperature if the average value of the temperature difference does not meet a first preset condition on the basis of the first embodiment, and judging whether a condensation condition is met according to the indoor environment temperature, the outdoor environment temperature and the indoor relative humidity; and when the condensation condition is judged to be met, controlling to close the fresh air function, and adjusting the fresh air valve to a second target opening degree. And under the condition that the average temperature difference does not meet a first preset condition, determining whether the air conditioner has a condensation risk or not according to the condensation condition, and closing the fresh air valve when the air conditioner is considered to have the condensation risk.

In the air conditioner control method provided by the third embodiment of the present invention, on the basis of the first embodiment or the second embodiment, the air conditioner is provided with an energy storage unit, and the method further includes:

For the air conditioner with the fresh air function, when the fresh air function is closed, because the temperature difference exists between the inside and the outside environment of the air conditioner, especially when heating in winter, outdoor cold air easily flows backwards and enters the room, and the use of the air conditioner is influenced. In the embodiment, when the opening of the fresh air function is detected, the fresh air valve is controlled to a first target opening, and the risk of condensation generation is judged according to the acquired environmental parameters in the fresh air operation process, so that the fresh air valve is controlled to a corresponding opening, the fresh air volume is adjusted, and condensation generation at a fresh air pipeline is effectively prevented; when the air conditioner is abnormally powered off in the fresh air function operation process, the energy storage unit is used for supplying power, and the fresh air valve is adjusted to a second target opening degree (namely, the fresh air valve is closed), so that the purpose of preventing fresh air from flowing backwards is achieved. Of course, when the air conditioner is turned off or the fresh air function is turned off, the fresh air valve should be synchronously controlled to the second target opening degree.

Fig. 5 is a flowchart of a fourth method for controlling an air conditioner according to an embodiment of the present invention, where the air conditioner is in a cooling mode, and as shown in fig. 5, the method includes:

step 301, after detecting that the air conditioner starts a fresh air function, adjusting a fresh air valve of the air conditioner to a first target opening degree.

Step 302, obtaining an indoor environment temperature, a fresh air speed and an indoor relative humidity, and calculating a temperature difference mean value of the indoor environment temperature and the fresh air temperature in a second preset time period every other first preset time period.

Step 303, judging whether the average value of the temperature differences meets a first preset condition, if so, executing step 304-step 306, otherwise, executing step 307;

step 304, acquiring the operation duration of the current fresh air function, and determining the current fresh air operation interval according to the operation duration;

step 305, calculating an average value of the indoor relative humidity within the second preset time period; calculating a humidity threshold according to the temperature difference mean value and the fresh air speed, and determining a condensation risk level corresponding to the current fresh air operation interval according to the difference value of the indoor relative humidity mean value and the humidity threshold;

step 306, determining the opening degree of the fresh air valve in the next fresh air operation interval according to the condensation risk level;

307, acquiring an outdoor environment temperature, and judging whether condensation conditions are met according to the indoor environment temperature, the outdoor environment temperature and the indoor relative humidity; and when the condensation condition is judged to be met, controlling to close the fresh air function, and adjusting the fresh air valve to a second target opening degree.

The specific processes in steps 301 to 302 may refer to steps 101 to 102, and the specific process in step 307 may refer to step 204, which are not described herein again.

In step 305, the mean value of the temperature difference is determined

When the first preset condition is met, the average value of the relative humidity RHI in the inner chamber is calculated for a second preset time (3 min which is the same as the average value of the calculated temperature difference)

And calculating a humidity threshold value RHI' according to the temperature difference mean value and the fresh air speed.

As an optional implementation, the calculation process of the humidity threshold RHI' includes: and acquiring a preset interval corresponding to the temperature difference mean value, determining a correction coefficient according to the corresponding preset interval, and determining the humidity threshold according to the temperature difference mean value, the fresh air speed and the correction coefficient.

The humidity threshold RHI' can be calculated by the following formula:

wherein, delta is a wind speed influence coefficient and is determined by a fresh air damper; k. b represents different correction coefficients respectively, k is the humidity calculation slope, b is an empirical value, and the correction coefficients are based on the average value of the temperature difference

And determining a corresponding preset interval. The specific values of the corresponding correction coefficients in different intervals can be obtained through a large number of tests before delivery, so that the accuracy of the calculation result is ensured. After determining the correction coefficient, according to the mean value of the temperature difference

The fresh air wind speed (i.e. the wind speed influence coefficient δ) and the correction coefficient determine the humidity threshold RHI'.

For example, when

When the temperature of the water is higher than the set temperature,

k₁＝-10，b₁＝130；

when in use

When the temperature of the water is higher than the set temperature,

k₂＝-2.5，b₁＝85；

when in use

When the temperature of the water is higher than the set temperature,

k₃＝-5，b₃＝110；

when in use

When the temperature of the water is higher than the set temperature,

k₄＝-2.5，b₄＝80；

when in use

When the temperature of the water is higher than the set temperature,

k₅＝0，b₅＝45；

wherein, δ is confirmed according to the new trend windscreen that the user set for, for example, when the new trend windscreen is "strong", δ is got 0, when the new trend windscreen is "high wind", δ is got 2, when the new trend windscreen is "well wind", δ is got 3, when the new trend windscreen is "low score", δ is got 5.

To be provided with

For example, if

And the air conditioner is operated at the high wind shield, when k is₂＝-2.5，b₁85, then the humidity threshold RHI' is (2-2.5 × 8+85)/100 is 67%.

It should be noted that when

In this case, it is considered that condensation is difficult to generate in the air conditioner, and the opening degree of the fresh air valve in the current interval is continuously adopted in the next fresh air operation interval (i.e. it is directly considered that the fresh air valve is at the first condensation risk level), but for convenience of description, the humidity threshold RHI 'in this case is a maximum value, for example, the correction coefficient k is 100, and b is 500, so that the RHI' is inevitably greater than the indoor relative humidity average value

Thereby ensuring that the condensation risk grade is judged to be the first risk grade in the next step

After the humidity threshold RHI' is obtained through calculation, determining a condensation risk level corresponding to the current fresh air operation interval according to the difference value between the indoor relative humidity mean value and the humidity threshold, including:

The condensation risk levels determined in different fresh air operation intervals are different, and meanwhile, the conditions for determining the condensation risk levels in different fresh air operation intervals are also different. The condition for determining the condensation level can be set in advance, can be a fixed value, and can also be determined according to the running time of fresh air.

In an alternative embodiment, the first preset humidity is set to 0, the second preset humidity is set to 15%, and the third preset humidity is set to 10%. Namely, within the 1 st h of starting the fresh air function unconditionally, the determined condensation risk levels comprise a first risk level (delta RHI is less than or equal to 0), a second risk level (0 is more than delta RHI and less than or equal to 15 percent) and a fourth risk level (delta RHI is more than or equal to 15 percent); within the 1h to 2h of the operation of the fresh air function, the determined condensation risk levels comprise a first risk level (delta RHI is less than or equal to 0), a third risk level (delta RHI is more than 0 and less than or equal to 10 percent) and a fourth risk level (delta RHI is more than 10 percent); in the 2h to 3h of the operation of the fresh air function and in all fresh air operation intervals after the 3h, the determined condensation risk levels comprise a first risk level (delta RHI is less than or equal to 0) and a fourth risk level (delta RHI is more than 0).

Of course, the first preset humidity, the second preset humidity and the third preset humidity in different operation intervals may also be other values, and meanwhile, more or less condensation risk levels may also be divided according to actual application requirements, which is not limited herein.

In step 306, after determining a condensation risk level corresponding to the current fresh air operation interval, determining the opening degree of the fresh air valve in the next fresh air operation interval according to the condensation risk level includes:

The adjustment of the fresh air valve under different condensation risk levels may specifically refer to the description in step 103, and is not described herein again.

It should be noted that, in the step 304 or the step 305, after the fresh air function is controlled to be turned off and the fresh air valve is adjusted to the second target opening, the air conditioner control method further includes: and outputting prompt information indicating that the air conditioner has the condensation risk.

Fig. 6 is a structural diagram of an air conditioner control device according to a fifth embodiment of the present invention, and as shown in fig. 6, the air conditioner control device 400 includes:

the first processing module 401 is configured to adjust a fresh air valve of the air conditioner to a first target opening degree after detecting that the air conditioner starts a fresh air function;

the second processing module 402 is configured to obtain an indoor environment temperature, a fresh air wind speed, and an indoor relative humidity, and calculate a mean value of temperature differences between the indoor environment temperature and the fresh air temperature every first preset time period for a second preset time period;

and a third processing module 403, configured to, if the temperature difference average value calculated by the second processing module 402 meets a first preset condition, obtain an operation duration of a current fresh air function, determine a current fresh air operation interval according to the operation duration, determine a condensation risk level corresponding to the current fresh air operation interval according to the indoor environment temperature, the fresh air speed, and the indoor relative humidity obtained by the second processing module 402, and determine an opening degree of the fresh air valve in a next fresh air operation interval according to the condensation risk level.

The air conditioner control device 500 of the present embodiment is an embodiment of a device corresponding to the first embodiment of the air conditioner control method, and the principle thereof is similar, and will not be described herein again.

Fig. 7 is a structural diagram of an air conditioner control device according to a sixth embodiment of the present invention, and as shown in fig. 7, in addition to the fifth embodiment, the air conditioner control device 500 further includes:

a fourth processing module 404, configured to obtain an outdoor ambient temperature if the average value of the temperature differences calculated by the second processing module 402 does not satisfy a first preset condition, and determine whether a condensation condition is satisfied according to the indoor ambient temperature, the outdoor ambient temperature, and the indoor relative humidity obtained by the second processing module 402; and also used for

And/or the fifth processing module 405 is configured to, after the air conditioner starts the fresh air function, utilize the energy storage unit to supply power when detecting that the air conditioner is abnormally powered down, and adjust the fresh air valve to a second target opening degree.

Fig. 8 is a structural diagram of an air conditioner control device according to a seventh embodiment of the present invention, and as shown in fig. 8, on the basis of the fifth embodiment and the sixth embodiment, an air conditioner control device 600 includes the first processing module 401, the second processing module 402, the third processing module 403, the fourth processing module 404, and the fifth processing module 405.

Specifically, the third processing module 403 includes:

the first processing submodule 4031 is used for calculating the average value of the indoor relative humidity within the second preset time period;

the second processing submodule 4032 is configured to calculate a humidity threshold according to the temperature difference mean value calculated by the second processing submodule 402 and the fresh air speed obtained by the second processing submodule 402, and determine a condensation risk level corresponding to the current fresh air operation interval according to a difference value between the indoor relative humidity mean value calculated by the first processing submodule 4031 and the humidity threshold.

Wherein the second processing sub-module 4032 includes:

a third processing sub-module 4033, configured to obtain a preset interval corresponding to the temperature difference mean value calculated by the second processing module 402, determine a correction coefficient according to the corresponding preset interval, and determine the humidity threshold according to the temperature difference mean value, the fresh air speed, and the correction coefficient;

and/or the fourth processing submodule 4034 is configured to, in the case that the current fresh air operation interval is the first fresh air operation interval after the fresh air function is turned on:

The third processing module 403 further includes:

the fifth processing submodule 4035 is configured to, if the condensation risk level corresponding to the current fresh air operation interval is the first risk level, not adjust the opening degree of the fresh air valve; and also used for

The condensation conditions in the fourth processing module 404 comprise a plurality of condensation conditions; the plurality of condensation conditions are determined based on a temperature interval in which the outdoor ambient temperature is located, a difference between the outdoor ambient temperature and the indoor ambient temperature, and the indoor relative humidity.

Specifically, the fourth processing module 404 includes:

a sixth processing sub-module 4046, configured to determine that a condensation condition is satisfied if a difference between the outdoor environment temperature and the indoor environment temperature is greater than a first difference when the outdoor environment temperature is less than a first preset temperature; and also used for

The air conditioner control device 600 further includes:

and the sixth processing module 406 is configured to output prompt information indicating that the air conditioner has a condensation risk after controlling to close the fresh air function and adjusting the fresh air valve to a second target opening degree.

Fig. 9 is a schematic structural diagram of an air conditioner according to an eighth embodiment of the present invention. As shown in fig. 9, the air conditioner 700 includes: a fresh air valve (not shown in fig. 9), at least one processor 701, memory 702, at least one network interface 704, and a user interface 703. The various components in the air conditioner 700 are coupled together by a bus system 705. It is understood that the bus system 705 is used to enable communications among the components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various busses are labeled in figure 7 as the bus system 705.

The user interface 703 may include, among other things, a display screen, an input unit such as a keyboard, a remote control, keys, buttons, a touch pad, a touch screen, or the like.

It will be appreciated that the memory 702 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 702 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The memory 702 in the embodiment of the present invention is used to store various types of data to support the operation of the air conditioner 700. Examples of such data include a control program of the air conditioner 700.

The method disclosed in the above embodiments of the present invention may be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The Processor 701 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 701 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 702, and the processor 701 may read the information in the memory 702 and perform the steps of the aforementioned methods in conjunction with its hardware.

In an exemplary embodiment, the air conditioner 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

In an exemplary embodiment, the present invention further provides a computer readable storage medium, such as a memory 702 including an air conditioner control program, which can be executed by the processor 701 of the air conditioner 800 to perform the steps of the foregoing method. The computer readable storage medium can be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The features disclosed in the several method or apparatus embodiments provided in the present application may be combined arbitrarily, without conflict, to arrive at new method embodiments or apparatus embodiments.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An air conditioner control method, characterized in that the method comprises:

2. The air conditioner control method as claimed in claim 1, wherein the method further comprises:

3. The air conditioner controlling method as claimed in claim 1 or 2, wherein the air conditioner is provided with an energy storage unit, the method further comprising:

4. The method for controlling an air conditioner according to claim 1, wherein the determining a condensation risk level corresponding to a current fresh air operation interval according to the indoor ambient temperature, the fresh air speed and the indoor relative humidity comprises:

5. The air conditioner control method as claimed in claim 4, wherein said calculating a humidity threshold value according to said temperature difference mean value and said fresh air speed comprises:

6. The air conditioner control method according to claim 4, wherein the determining a condensation risk level corresponding to the current fresh air operation interval according to the difference between the indoor relative humidity mean value and the humidity threshold value comprises:

7. The air conditioner control method according to claim 6, wherein said determining the opening degree of the fresh air valve in the next fresh air operation zone according to the condensation risk level comprises:

8. The air conditioner controlling method as claimed in claim 2, wherein the condensation condition includes a plurality of condensation conditions; the plurality of condensation conditions are determined based on a temperature interval in which the outdoor ambient temperature is located, a difference between the outdoor ambient temperature and the indoor ambient temperature, and the indoor relative humidity.

9. The air conditioner control method as claimed in claim 8, wherein said judging whether a condensation condition is satisfied based on the indoor ambient temperature, the outdoor ambient temperature and the indoor relative humidity comprises:

10. The air conditioner control method according to claim 2 or 7, wherein the controlling of turning off the fresh air function and adjusting the fresh air valve to a second target opening degree further comprises:

11. An air conditioner control device, characterized in that the device comprises:

12. The air conditioner control apparatus as claimed in claim 11, wherein said apparatus further comprises:

13. The air conditioner control device according to claim 11 or 12, wherein the air conditioner is provided with an energy storage unit, the device further comprising:

14. The air conditioner control apparatus as claimed in claim 11, wherein said third processing module comprises:

15. The air conditioner control apparatus as claimed in claim 14, wherein said second processing submodule includes:

16. The air conditioner control apparatus as claimed in claim 14, wherein said second processing submodule further comprises:

17. The air conditioner control apparatus as claimed in claim 16, wherein said third processing module further comprises:

18. The air conditioner control device according to claim 12, wherein the condensation condition includes a plurality of condensation conditions; the plurality of condensation conditions are determined based on a temperature interval in which the outdoor ambient temperature is located, a difference between the outdoor ambient temperature and the indoor ambient temperature, and the indoor relative humidity.

19. The air conditioner control apparatus as claimed in claim 18, wherein said fourth processing module comprises:

20. The air conditioner control apparatus as claimed in claim 12 or 17, further comprising:

21. An air conditioner, characterized in that the air conditioner comprises a fresh air valve, the air conditioner further comprises a memory, a processor and an air conditioner control program stored on the memory and operable on the processor, the air conditioner control program when executed by the processor implementing the steps of the air conditioner control method according to any one of claims 1-10.

22. A computer-readable storage medium, characterized in that an air conditioner control program is stored thereon, which when executed by a processor implements the steps of the air conditioner control method according to any one of claims 1 to 10.