CN116292238A

CN116292238A - Control method and device of working frequency, storage medium and electronic equipment

Info

Publication number: CN116292238A
Application number: CN202310552166.3A
Authority: CN
Inventors: 岳宝; 贺智辉; 黄良伟
Original assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-06-23
Anticipated expiration: 2043-05-17
Also published as: CN116292238B

Abstract

The embodiment of the application discloses a control method and device of working frequency, a storage medium and electronic equipment, and relates to the field of electric appliance control, wherein the method comprises the following steps: acquiring a preset exhaust pressure corresponding to the suction pressure when the compression device works at a first frequency; when the exhaust pressure of the compression device operating at the first frequency is less than the preset exhaust pressure, starting to record the duration that the exhaust pressure of the compression device operating at the first frequency is less than the preset exhaust pressure; and when the duration meets a preset condition, the first frequency is increased to obtain a second frequency, and the second frequency is used for working. By adopting the embodiment of the application, the working frequency of the variable-frequency compression device can be controlled, and the running stability and reliability of the compression device are ensured.

Description

Control method and device of working frequency, storage medium and electronic equipment

Technical Field

The present disclosure relates to the field of electrical appliance control, and in particular, to a method and apparatus for controlling a working frequency, a storage medium, and an electronic device.

Background

Because of the unique working property, the variable-frequency heating equipment takes the water in the heating pool of the variable-frequency heating equipment as an example, and the working condition demands of high-ring-temperature low-water temperature during heating work and low-ring-temperature high-water temperature during refrigeration work exist. When the operating frequency of the compression device is lowered, the discharge pressure of the compression device is lowered, and the suction pressure is raised during operation of the compression device of the variable frequency heating apparatus, so that the ratio of the discharge pressure and the suction pressure of the compression device is further reduced, and the operating range defined by the specification of the compression device may be exceeded. When the compression device is operated outside the prescribed operating range for a long period of time, irreversible damage may be caused to the compression device. At present, the industry generally only carries out relevant control on the range of the discharge pressure or the suction pressure of the compressor, but does not increase the control of the operation pressure ratio of the compression device, and the operation reliability of the compression device cannot be effectively ensured.

Disclosure of Invention

The embodiment of the application provides a working frequency control method, a device, a storage medium and electronic equipment, which can control the working frequency of a variable-frequency compression device and ensure the stability and reliability of the operation of the compression device. The technical scheme is as follows:

in a first aspect, an embodiment of the present application provides a method for controlling an operating frequency, where the method includes:

acquiring a preset exhaust pressure corresponding to the suction pressure when the compression device works at a first frequency;

when the exhaust pressure of the compression device operating at the first frequency is less than the preset exhaust pressure, starting to record the duration that the exhaust pressure of the compression device operating at the first frequency is less than the preset exhaust pressure;

and when the duration meets a preset condition, the first frequency is increased to obtain a second frequency, and the second frequency is used for working.

In a second aspect, an embodiment of the present application provides a frequency control apparatus, including:

the pressure acquisition module is used for acquiring preset exhaust pressure corresponding to the suction pressure when the compression device works at the first frequency;

the duration recording module is used for starting to record duration that the exhaust pressure when the compression device works at the first frequency is smaller than the preset exhaust pressure when the compression device works at the first frequency is smaller than the preset exhaust pressure;

And the frequency increasing module is used for increasing the first frequency to obtain a second frequency when the duration meets a preset condition, and working at the second frequency.

In a third aspect, embodiments of the present application provide a computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the above-described method steps.

In a fourth aspect, embodiments of the present application provide an electronic device, which may include: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the above-mentioned method steps.

The technical scheme provided by some embodiments of the present application has the beneficial effects that at least includes:

the method comprises the steps of acquiring the air suction pressure and acquiring the preset exhaust pressure corresponding to the air suction pressure when the air suction pressure works at a first frequency by presetting the preset exhaust pressure corresponding to the air suction pressure respectively, starting to record the duration that the exhaust pressure is smaller than the preset exhaust pressure when the exhaust pressure is smaller than the preset exhaust pressure, increasing the first frequency to obtain a second frequency when the preset condition is met, and starting to work at the second frequency; in other words, the method and the device judge whether the compression device works in the safety range or not by comparing the preset exhaust pressure corresponding to the exhaust pressure and the suction pressure when the compression device operates, and automatically frequency-up until the compression device works in the safety range when the condition that the compression device exceeds the safety range is detected, so that the working stability and the working reliability of the compression device are ensured, and the service life of the compression device is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a variable frequency heating apparatus according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a method for controlling an operating frequency according to an embodiment of the present application;

fig. 3 is a second flowchart of a method for controlling an operating frequency according to an embodiment of the present application;

fig. 4 is a flowchart of a method for controlling an operating frequency according to an embodiment of the present application;

fig. 5 is a flowchart of a method for controlling an operating frequency according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a frequency control device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings of the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it is to be understood that the terms "comprise" and "have," and any variations thereof, are intended to cover non-exclusive inclusions, unless otherwise specifically defined and defined. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The present application is described in detail with reference to specific examples.

The variable-frequency heating equipment is a device which automatically adjusts working power according to actual conditions so that a heated object can keep constant temperature. The common non-variable frequency heating equipment is a device for automatically adjusting the heating time and preserving heat by setting different temperatures. The variable-frequency heating equipment has better heating effect, and because the working principle is to change the power supply frequency so as to adjust the load, the variable-frequency heating equipment also has the effects of reducing power consumption and loss and has longer service life compared with non-variable-frequency heating equipment.

In one embodiment, as shown in fig. 1, a schematic structural diagram of a heating apparatus according to an embodiment of the present application is provided. In the present embodiment, the heating apparatus 101 includes at least a condensing device 1011, a compressing device 1012, a throttle device 1013, and an evaporating device 1014. The heating apparatus 101 is configured to heat the object temperature of the target object 102 from the initial temperature to a set temperature set by the user through the plurality of means described above in accordance with an input instruction by the user. For example, the target object 102 is pool water of a swimming pool, the heating device 101 heats the pool water entering the compression device 1012, and the heated pool water is further injected into the swimming pool until the pool water temperature of the swimming pool is heated to a set temperature set by a user. In the present embodiment, the heating apparatus 101 is a variable frequency heating apparatus.

In the schematic structural diagram of the operation of the heating apparatus provided in this embodiment, the heating apparatus further includes a compression device suction pressure P _s Sensor 1031. Compression device discharge pressure P _d Sensor 1032, ambient temperature T sensor 1033.

Suction pressure P of compression device _s Sensor 1031, compressor discharge pressure P _d The sensors 1032 are disposed near the compression device 1012 and are respectively used for acquiring the suction pressure P of the compression device 1012 _s And exhaust pressure P _d . An ambient temperature T sensor 1033 is disposed near the heating device 101 for sensing the ambient temperature at which the heating device 101 is located.

It is understood that fig. 1 is merely one exemplary embodiment provided by embodiments of the present application. For example, the heating device 101 may also include a camera, RF (radio frequency) circuitry, sensors, audio circuitry, wiFi modules, and the like. Among other sensors, such as light sensors, motion sensors, air quality sensors, and other sensors. In particular, the light sensor may comprise an ambient light sensor, which may adjust the brightness of the display unit according to the brightness of the ambient light, and a proximity sensor, which may turn on the display unit and/or the backlight when a person is monitored to be approaching the heating device 101. As an environment monitoring element, the air quality sensor can be a temperature sensor, a humidity sensor, a carbon dioxide sensor and a PM2.5 sensor, and the air quality sensor in the embodiment is preferably a temperature and humidity sensor so as to monitor the indoor and outdoor temperature and humidity of the environment where the air conditioner is located in real time. Of course, the heating device 101 may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described herein.

Those skilled in the art will appreciate that the hardware configuration shown in fig. 1 does not constitute a limitation of the heating apparatus 101, and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

Therefore, in order to solve the above-mentioned problems, the present application proposes a control method of an operating frequency. In one embodiment, as shown in fig. 2, a flowchart of a method for controlling an operating frequency according to an embodiment of the present application is provided, which may be implemented by a computer program and may be executed on a frequency control device based on von neumann system. The computer program may be integrated in the application or may run as a stand-alone tool class application.

Specifically, the operating frequency control method includes:

s101, acquiring a preset exhaust pressure corresponding to the suction pressure when the compression device works at a first frequency.

The control method of the working frequency is mainly used for controlling the compression device to operate in a normal operation pressure range, and avoids the compression device from being damaged when the compression device operates outside the normal pressure range for a long time, and the service life and the operation reliability of the compression device and even the heating equipment 101 are seriously affected. For this purpose, the present application uses the compressor suction pressure P provided between the compressor suction port and the evaporator when the compressor is operated at the first frequency after the air conditioner is started _s The sensor monitors the suction pressure P of the compression device _s By means of the discharge pressure P of the compressor arranged between the discharge opening of the compressor and the condenser _d The sensor monitors the discharge pressure P of the compression device _d As shown in fig. 1.

According to the acquired suction pressure when working at the first frequency, a preset discharge pressure corresponding to the suction pressure is acquired in the storage unit, the preset discharge pressure can be understood as the lowest discharge pressure at which the compression device can operate, and when the actual discharge pressure of the compression device is smaller than the discharge pressure, the operation safety and reliability of the compression device are difficult to ensure.

As shown in Table 1, table 1 is a table of suction pressures and preset discharge pressures, P _s1 For the minimum suction pressure at which the compression device can operate, P _sn Is the highest suction pressure at which the compression device can operate. P (P) _s1 Corresponding to preset exhaust pressure P _dmin1 I.e. the lowest exhaust pressure P _dmin1 ，P _s2 Corresponding to preset exhaust pressure P _dmin2 I.e. the lowest exhaust pressure P _dmin2 ，P _sn Corresponding to preset exhaust pressure P _dminn I.e. the lowest exhaust pressure P _dminn 。

TABLE 1

Suction pressure Ps	Minimum exhaust pressure Pdmin
		Ps1	Pdmin1
Ps2	Pdmin2
		…	…
Psn	Pdminn

In one embodiment, when the duration of operation of the compression device reaches a fourth duration, a preset discharge pressure corresponding to the suction pressure when operating at the first frequency is obtained. In other words, during the fourth period of time when the compression device is started to operate, the judgment of the exhaust pressure of the compression device and the control of the operating frequency provided by the application are not performed, and the judgment logic for continuously monitoring the suction pressure and the exhaust pressure is entered after the fourth period of time, wherein the fourth period of time is 0.5-1.5 hours, preferably 1 hour. In this embodiment, when the compression device is just started, the judgment of the exhaust pressure and the adjustment of the working frequency according to the exhaust pressure are not performed, so that the working logic of the compression device is more satisfied, and the computing resource is saved.

S102, when the exhaust pressure of the compression device operating at the first frequency is smaller than the preset exhaust pressure, recording the duration that the exhaust pressure of the compression device operating at the first frequency is smaller than the preset exhaust pressure.

And continuously collecting the suction pressure and the discharge pressure of the compression device, and judging the magnitude of the preset discharge pressure corresponding to the collected discharge pressure and the current suction pressure. For example, in H ₀ At the moment, the compression device operates at a frequency F ₁ Working, collecting suction pressure P _s And exhaust pressure P _d According to suction pressure P _s Acquiring the suction pressure P _s Corresponding preset exhaust pressure P _dmin The collected exhaust pressure P _d And a preset exhaust pressure P _dmin A comparison of the sizes was made.

And when the exhaust pressure when the compression device is monitored to work at the first frequency is smaller than the preset exhaust pressure, recording the duration that the exhaust pressure when the compression device is monitored to work at the first frequency is smaller than the preset exhaust pressure. For example, in H ₀ At the moment, the compression device operates at a frequency F ₁ Working, collecting suction pressure P _s And exhaust pressure P _d According to suction pressure P _s Acquiring the suction pressure P _s Corresponding preset exhaust pressure P _dmin The collected exhaust pressure P is monitored _d < preset exhaust pressure P _dmin From the exhaust pressure P _d < preset exhaust pressure P _dmin From the moment of (1) the exhaust pressure P is recorded _d < preset exhaust pressure P _dmin Is a time period of (2).

It should be noted that, in the present application, the collection of the suction pressure and the discharge pressure is performed in real time based on a preset period, and the working frequency is changed in real time according to environmental data or other working conditions. For example, if the preset period is 1 minute, the suction pressure and the discharge pressure are collected once every minute, and the collected discharge pressure is compared with the preset discharge pressure corresponding to the suction pressure. In other words, when the duration in which the exhaust pressure at the first frequency is smaller than the preset exhaust pressure is recorded, the specific value of the first frequency is not fixed. For example, in H ₀ At the moment, H is monitored ₀ Exhaust pressure P collected at a moment _d < preset exhaust pressure P _dmin The first frequency of the compression device is 45Hz; continuously monitoring suction pressure and discharge pressure, and at H ₁ At the moment, H is monitored ₁ Exhaust pressure P collected at a moment _d < preset exhaust pressure P _dmin Recorded as H ₀ Time to H ₁ The time period between moments when the compression device is operated at a first frequency of 43Hz.

And S103, when the duration meets the preset condition, the first frequency is increased to obtain the second frequency, and the second frequency is used for working.

When the duration that the exhaust pressure is smaller than the preset exhaust pressure when the compressor works at the first frequency is monitored to meet the preset condition, the compressor is judged to be operated out of the pressure range, and the working frequency of the compressor is required to be controlled.

In one embodiment, the preset condition is that the duration of the exhaust pressure when operating at the first frequency is less than the preset exhaust pressure reaches the first time period; or the accumulated duration that the exhaust pressure is smaller than the preset exhaust pressure when the engine works at the first frequency in the preset time period reaches the second duration. The specific values of the preset time period, the first time period and the second time period can be obtained from a storage unit or obtained from an instruction of a user. The first time period is less than the second time period, for example, the first time period is 10 minutes to 30 minutes, preferably, the first time period is 15 minutes; the second time period is 20 minutes to 40 minutes, preferably the second time period is 30 minutes, and the preset time period is 1 hour to 1.5 hours, preferably the preset time period is 1 hour.

For example, at H ₀ At the moment, the collected exhaust pressure P is monitored _d < preset exhaust pressure P _dmin From the exhaust pressure P _d < preset exhaust pressure P _dmin From the moment of (1) the exhaust pressure P is recorded _d < preset exhaust pressure P _dmin Duration H of (2); monitoring exhaust pressure P _d Continuously less than the preset exhaust pressure P _dmin And having a duration greater than or equal to the first duration, or from that at H ₀ The exhaust pressure P is monitored within a preset period of time from the moment _d < preset exhaust pressure P _dmin And if the accumulated time of the compression device is greater than or equal to the second duration, determining that the compression device is operated outside the pressure range, and adjusting the working frequency of the compression device.

Further, when it is determined that the compression device is operated outside the pressure range, that is, when it is required to control the operating frequency of the compression device, the first frequency corresponding to the current operation of the compression device is increased to obtain the second frequency, so that the operation is performed based on the second frequency, and the suction pressure and the discharge pressure when the compression device is operated at the second frequency are monitored again, so that the operating frequency of the compression device is timely adjusted based on the preset discharge pressure corresponding to the suction pressure and the discharge pressure.

The first frequency in the above-mentioned process of increasing the first frequency means a first frequency obtained when it is detected that a period of time during which the exhaust pressure when the first frequency is operated is smaller than the preset exhaust pressure satisfies a preset condition, that is, the first frequency is increased. For example, at H ₀ At the moment, H is monitored ₀ Exhaust pressure P collected at a moment _d < preset exhaust pressure P _dmin The first frequency of the compression device is 45Hz; continuously monitoring the suction pressure and the discharge pressure, at H ₁ At the moment, H is monitored ₁ Exhaust pressure P collected at a moment _d < preset exhaust pressure P _dmin And H is ₀ Time to H ₁ The time length between the moments meets the preset condition, the first frequency of the operation of the compression device is 43Hz, and the first frequency is 43Hz for improvementThe adjustment, for example, results in a second frequency of 53Hz, and the compression means operates on the basis of the second frequency having a value of 53 Hz.

In one embodiment, as shown in fig. 3, a second flowchart of a method for controlling an operating frequency according to an embodiment of the present application is provided, which may be implemented by a computer program and may be executed on a frequency control device based on von neumann system. The computer program may be integrated in the application or may run as a stand-alone tool class application.

Specifically, the operating frequency control method includes:

s201, acquiring a preset exhaust pressure corresponding to the suction pressure when the compression device works at the first frequency.

See S101 above, and will not be described here again.

In one embodiment, when the discharge pressure of the compression device when operating at the first frequency is greater than or equal to the preset discharge pressure, the first frequency is stored in association with the current temperature data corresponding to the compression device based on the preset period. The temperature data may include an ambient temperature at which the current compression device operates and a water outlet temperature set by a user, the ambient temperature being acquired by the ambient temperature T sensor 1033 shown in fig. 1.

As shown in Table 2, table 2 is a temperature data provided in the examples of the present applicationTable stored in association with frequency, T ₁ Is the minimum ambient temperature at which the compression device can operate, T _n T is the highest ambient temperature at which the compression device can operate _out1 Is the lowest water outlet temperature T of the compression device _out2 Is the highest water outlet temperature of the compression device, F is the ambient temperature T and the water outlet temperature T _out The lowest operating frequency at which the corresponding compression device operates. For example, when the ambient temperature is T1 and the outlet water temperature is T _out1 When the minimum working frequency of the corresponding compression device is F ₁₁ When the ambient temperature is T ₂ And the water outlet temperature is T _out2 When the minimum working frequency of the corresponding compression device is F ₁₂ 。

TABLE 2

	T1	T2	…	Tn
					Tout1	F11	F12	…	F1n
Tout2	F21	F22	…	F2n
					…	…	…	…	…
Toutn	Fn1	Fn2		Fnn

The table of temperature data and frequency correlations shown in table 2 is derived from a preset of the compression device. When the exhaust pressure of the compression device when working at the first frequency is greater than or equal to the preset exhaust pressure, the current temperature data corresponding to the first frequency and the compression device are stored in a correlated manner based on the preset period, namely, the frequency and temperature correlation table shown in the table 2 is updated, so that when the compression device is started again, the current environment temperature T is acquired through the environment temperature T sensor, and the water outlet temperature T set by a user is acquired _out Thereby according to the ambient temperature T and the outlet water temperature T _out And acquiring the operating frequency of the compression device under the working condition from the updated frequency and temperature correlation table.

S202, when the exhaust pressure of the compression device operating at the first frequency is smaller than the preset exhaust pressure, recording the duration that the exhaust pressure of the compression device operating at the first frequency is smaller than the preset exhaust pressure.

See S102 above, and will not be described here again.

And S203, when the duration meets the preset condition, the first frequency is increased to obtain the second frequency, and the second frequency is used for working.

See S103 above, and will not be described here again.

S204, judging whether the exhaust pressure when the second frequency is operated is greater than or equal to the preset exhaust pressure when the second frequency is operated for a third time.

And when the compression device starts working at the second frequency and the time length of working at the second frequency reaches the third time length, collecting the current exhaust pressure and the air suction pressure, and judging whether the current exhaust pressure is larger than or equal to the preset exhaust pressure corresponding to the air suction pressure. For example, in H ₃ Increasing the first frequency at a time to obtain a second frequency, and operating the compression device at the second frequency for a third period of time, i.e. H ₄ And collecting the current exhaust pressure and the suction pressure at the moment, and if the current exhaust pressure is greater than or equal to the preset exhaust pressure corresponding to the suction pressure.

In one embodiment, the preset condition is that the duration of the exhaust pressure when operating at the first frequency is less than the preset exhaust pressure reaches the first time period; or the accumulated duration that the exhaust pressure is smaller than the preset exhaust pressure when the exhaust pressure works at the first frequency in the preset time period reaches the second duration, and the third duration is smaller than the first duration and smaller than the second duration. For example, the first duration is 10 minutes to 30 minutes, preferably, the first duration is 15 minutes; the second duration is 20 minutes to 40 minutes, preferably, the second duration is 30 minutes; the third duration is 3 minutes to 8 minutes, preferably the third duration is 5 minutes.

And S205, if the exhaust pressure when working at the second frequency is greater than or equal to the preset exhaust pressure, associating and storing the second frequency with the current temperature data corresponding to the compression device.

If the exhaust pressure of the compression device when working at the second frequency is greater than or equal to the preset exhaust pressure, the compression device is characterized in that the compression device is operated in a pressure range at the moment, continues to work at the second frequency, and the second frequency and the current temperature data corresponding to the compression device are associated and stored, namely, a frequency and temperature association table shown in table 2 is updated. So that when the compression device is restarted, the current ambient temperature T is acquired through the ambient temperature T sensor, and the water outlet temperature T set by a user is acquired _out Thereby according to the ambient temperature T and the outlet water temperature T _out And acquiring the operating frequency of the compression device under the working condition from the updated frequency and temperature correlation table.

And S206, if the exhaust pressure when the engine works at the second frequency is smaller than the preset exhaust pressure, raising the second frequency based on the first step value to obtain a third frequency, and updating the third frequency to the second frequency.

If the discharge pressure of the compression device when operating at the second frequency is greater than or equal to the preset discharge pressure, the operation of the compression device outside the pressure range is characterized, and the operating frequency of the compression device is required to be adjusted. Further, the step of updating the third frequency to the second frequency and, when the operation duration of the operation at the second frequency reaches the third duration, judging whether the exhaust pressure of the operation at the second frequency is greater than or equal to the preset exhaust pressure.

In other words, in this embodiment, the second frequency is increased by the first step value to obtain the third frequency, the third frequency is updated to the second frequency, and the second frequency is continuously updated until the exhaust pressure of the compression device when working at the second frequency is greater than or equal to the preset exhaust pressure, so that the compression device works in a pressure range, and the working stability of the compression device is improved.

For example, in H ₃ Moment of time will first frequency F ₁ Increasing to obtain the second frequency F ₂ At a second frequency F in the compression device ₂ Operates for a third period of time, i.e. H ₄ Collecting the current exhaust pressure and the suction pressure at the moment, and if the current exhaust pressure is still smaller than the preset exhaust pressure corresponding to the suction pressure, determining a first stepping value F based on 1Hz ¹ Increasing the second frequency F ₂ To a third frequency F ₃ And at a third frequency F in the compression device ₃ After a third period of operation, i.e. H ₅ Collecting the current exhaust pressure and the suction pressure at the moment, and if the current exhaust pressure is still smaller than the preset exhaust pressure corresponding to the suction pressure, determining a first stepping value F based on 1Hz ¹ Increasing the third frequency F ₃ To a second frequency F ₃ +F ¹ Based on the second frequency F ₃ +F ¹ Operating for a third period of time until the exhaust pressure at the second frequencyAnd if the temperature is greater than or equal to the preset exhaust pressure, continuing to operate at a second frequency, and carrying out association storage on the second frequency and the current temperature data corresponding to the compression device.

In one embodiment, the first frequency is increased to the second frequency based on a preset value, the preset value being greater than the first step value. For example, the preset value is 5Hz and the first step value is 1Hz. In another embodiment, when the duration satisfies the preset condition, the first frequency is increased based on the first step value to obtain the second frequency, and the second frequency is operated. For example, the first step value is 1Hz, the second frequency is obtained by increasing the first frequency based on the first step value, and the third frequency is obtained by increasing the second frequency based on the first step value. In the present application, the preset value and the first step value for increasing the first frequency to the second frequency are set reasonably, so as to quickly find the working frequency for the compression device to work in the pressure range.

In one embodiment, as shown in fig. 4, a flowchart of a method for controlling an operating frequency according to an embodiment of the present application is shown, which may be implemented by a computer program and may be executed on a frequency control device based on von neumann system. The computer program may be integrated in the application or may run as a stand-alone tool class application.

Specifically, the operating frequency control method includes:

s301, acquiring a preset exhaust pressure corresponding to the suction pressure when the compression device works at the first frequency.

See S101 above, and will not be described here again.

S302, when the exhaust pressure of the compression device operating at the first frequency is smaller than the preset exhaust pressure, recording the duration that the exhaust pressure of the compression device operating at the first frequency is smaller than the preset exhaust pressure.

See S102 above, and will not be described here again.

And S303, when the duration meets the preset condition, the first frequency is increased to obtain the second frequency, and the second frequency is used for working.

See S103 above, and will not be described here again.

And S304, judging whether the exhaust pressure when the working at the second frequency is greater than or equal to the preset exhaust pressure when the working at the second frequency reaches the third time.

See S204 above, and will not be described again here.

And S305, if the exhaust pressure when working at the second frequency is greater than or equal to the preset exhaust pressure, associating and storing the second frequency with the current temperature data corresponding to the compression device.

See S205 above, and will not be described again here.

And S306, if the exhaust pressure when the engine works at the second frequency is smaller than the preset exhaust pressure, raising the second frequency based on the first step value to obtain a third frequency, and updating the third frequency to the second frequency.

See S206 above, and will not be described here again.

S307, obtaining a down-conversion signal.

The pressure device provided in this embodiment further includes a user interface, which may include a Display unit (Display) and an input unit. The input unit may be an interaction device, and a user may interact with the compression device through the interaction device during operation of the compression device, so as to perform parameter setting or debugging or instruction input on the compression device. And acquiring the down-conversion signal through an instruction input by a user. The down-conversion signal may be understood as indicating information indicating a reduction of the operating frequency at which the compression device operates.

And S308, when the exhaust pressure of the compression device when working at the first frequency is greater than or equal to the preset exhaust pressure, responding to the down-conversion signal, reducing the first frequency based on the second step value to obtain a fourth frequency, and working at the fourth frequency.

When the discharge pressure when the compression device operates at the first frequency is greater than or equal to the preset discharge pressure, S302 is performed.

When the exhaust pressure of the compression device is greater than or equal to the preset exhaust pressure when the compression device operates at the first frequency, namely, the compression device operates in a pressure range, the first frequency is reduced based on the second step value to obtain a fourth frequency in response to the frequency-reducing signal, and the compression device operates at the fourth frequency. The second step value may be preset or derived from the down-converted signal. For example, at a second step value F of 1Hz ² Reducing the first frequency F ₁ Obtaining a fourth frequency F ₄ The compressing device uses the fourth frequency F ₄ Work is performed.

S309, judging whether the exhaust pressure when working at the fourth frequency is greater than or equal to the preset exhaust pressure after the working time when working at the fourth frequency reaches the fifth time.

And when the compression device starts working at the fourth frequency and the time length of the compression device which is operated at the fourth frequency reaches the fifth time length, collecting the current exhaust pressure and the suction pressure, and judging whether the current exhaust pressure is larger than or equal to the preset exhaust pressure corresponding to the suction pressure. For example, in H ₅ Reducing the first frequency at the moment to obtain a fourth frequency, and operating the compression device at the fourth frequency for a fifth period of time, i.e. H ₆ And collecting the current exhaust pressure and the suction pressure at the moment, and judging whether the current exhaust pressure is greater than or equal to the preset exhaust pressure corresponding to the suction pressure. The duration of the fifth duration is 3 minutes to 8 minutes, preferably the duration of the fifth duration is 5 minutes.

S310, the exhaust pressure working at the fourth frequency is smaller than the preset exhaust pressure, and the exhaust pressure working at the fifth frequency is obtained by increasing the fourth frequency by a second step value.

If the discharge pressure of the compression device when operating at the fourth frequency is less than the preset discharge pressure, the compression device is characterized as operating outside the pressure range at the moment, and the compression device is unstable when operating at the fourth frequency, so that the compression device is increased from the fourth frequency to the fifth frequency based on the second stepping value, and continues to operate at the fifth frequency.

For example, at H ₅ Reducing the first frequency at the moment to obtain a fourth frequency, and operating the compression device at the fourth frequency for a fifth period of time, i.e. H ₆ And collecting the current exhaust pressure and the suction pressure at any time, if the current exhaust pressure is smaller than the preset exhaust pressure corresponding to the suction pressure, increasing the fourth frequency by a second stepping value to obtain a fifth frequency, namely obtaining a first frequency, and operating the compression device at the first frequency.

And S311, when the exhaust pressure is greater than or equal to the preset exhaust pressure in the working process of the fourth frequency, reducing the fourth frequency based on the second stepping value to obtain a sixth frequency, and updating the sixth frequency to the fourth frequency.

If the discharge pressure of the compression device when operating at the fourth frequency is greater than or equal to the preset discharge pressure, the compression device is characterized as operating in the pressure range at this time, and the operating frequency of the compression device is required to be adjusted. Further, the fourth frequency is reduced based on the second step value to obtain a sixth frequency, the sixth frequency is updated to the fourth frequency, and after the working time length when the fourth frequency is operated reaches the fifth time length, the step of judging whether the exhaust pressure when the fourth frequency is operated is greater than or equal to the preset exhaust pressure is executed again.

In other words, the present embodiment reduces the fourth frequency by the second step value to obtain the sixth frequency, and updates the sixth frequency to the fourth frequency, that is, continuously updates the fourth frequency until the compression device operates at the fifth frequency. The exhaust pressure of the compression device when working at the fifth frequency is greater than or equal to the preset exhaust pressure, and the fifth frequency is the lowest working frequency under the working condition corresponding to the temperature data.

In another implementation, the fifth frequency is associated with the current temperature data corresponding to the compression device, that is, the frequency-temperature association table shown in table 2 is updated. When the compression device is started again, the current ambient temperature T is acquired through the ambient temperature T sensor, the water outlet temperature Tout set by a user is acquired, and therefore the operating frequency of the compression device under the working condition is acquired from the updated frequency and temperature correlation table according to the ambient temperature T and the water outlet temperature Tout.

In one embodiment, as shown in fig. 5, a flowchart of a method for controlling an operating frequency according to an embodiment of the present application is shown, which may be implemented by a computer program and may be executed on a frequency control device based on von neumann system. The computer program may be integrated in the application or may run as a stand-alone tool class application.

Specifically, the operating frequency control method includes:

s401, the working time of the compression device reaches T ₄ Obtaining F ₁ Suction pressure P at frequency _s Corresponding preset P _dmin 。

The time length of the operation of the compression device reaches the fourth time length T ₄ At the time, obtain a first frequency F ₁ Suction pressure P during operation _s Corresponding preset exhaust pressure P _dmin . In the present embodiment, the compression device suction pressure P provided between the compression device suction port and the evaporation device is used _s The sensor monitors the suction pressure P of the compression device _s By usingCompression device discharge pressure P disposed between compression device discharge port and condensing device _d The sensor monitors the discharge pressure P of the compression device _d As shown in fig. 1. In obtaining the suction pressure P _s Thereafter, the suction pressure P was obtained from a table of suction pressure and preset discharge pressure shown in Table 1 _s Corresponding preset exhaust pressure P _dmin 。

S402, judging whether the exhaust pressure P is _d ＜ _Pdmin And lasting for a period of time up to T ₁ ？

At a first frequency F when the compression device is monitored ₁ Exhaust pressure P during operation _d Less than a preset exhaust pressure P _dmin At the time, the exhaust pressure P is recorded _d Less than a preset exhaust pressure P _dmin Whether or not the duration of (a) reaches the first duration T ₁ 。

S403, if exhaust pressure P _d ＜P _dmin And the duration does not reach T ₁ Judging whether the exhaust pressure P is within the preset time period H _d ＜P _dmin The accumulated time length of (2) reaches T ₂ ？

If the exhaust pressure P _d ＜P _dmin And the duration does not reach T ₁ Further judging whether the exhaust pressure P is within the preset time period H _d < preset exhaust pressure P _dmin The accumulated time length of (2) reaches the second time length T ₂ . The first time period is less than the second time period, for example, the first time period is 10 minutes to 30 minutes, preferably, the first time period is 15 minutes; the second time period is 20 minutes to 40 minutes, preferably the second time period is 30 minutes, and the preset time period is 1 hour to 1.5 hours, preferably the preset time period is 1 hour.

S404, if the exhaust pressure P _d ＜P _dmin And lasting for a period of time up to T ₁ Or within a preset period of time H, the exhaust pressure P _d ＜P _dmin The accumulated time length of (2) reaches T ₂ ，F ₂ =F ₁ +first step value F ¹ By F ₂ The duration of the frequency operation reaches T ₃ 。

If the exhaust pressure P _d < preset exhaust pressure P _dmin And if the relation between the two conditions meets the preset condition, determining that the compression device operates outside the pressure range, and adjusting the working frequency of the compression device. Then the first step value F ¹ Increasing the first frequency F corresponding to the current operation of the compression device ₁ Obtaining a second frequency F ₂ . The compression device uses the second frequency F ₂ Start to operate and monitor at the second frequency F ₂ The working time reaches a third time T ₃ At the time, the current exhaust pressure P is collected _d And suction pressure P _s 。

S405, judging whether P is _d ≥P _dmin ？

The compression device uses the second frequency F ₂ Start to operate and monitor at the second frequency F ₂ The working time reaches a third time T ₃ At the time, the current exhaust pressure P is collected _d And suction pressure P _s And judges the current exhaust pressure P _d Whether or not to be greater than or equal to the suction pressure P _s Corresponding preset exhaust pressure P _dmin 。

S406, if P _d ≥P _dmin The frequency F and the current temperature are stored in a correlated way, and F is taken as F under the working condition _min 。

If the compression device is at the second frequency F ₂ When the working exhaust pressure is greater than or equal to the preset exhaust pressure, the compression device is characterized as running in the pressure range at the moment and at the second frequency F ₂ Continuing to operate and applying a second frequency F ₂ And (3) carrying out association storage on the current temperature data corresponding to the compression device, namely updating the frequency and temperature association table shown in the table 2. So that when the compression device is restarted, the current ambient temperature T is acquired through the ambient temperature T sensor, and the water outlet temperature T set by a user is acquired _out Thereby according to the ambient temperature T and the outlet water temperature T _out And acquiring the operating frequency of the compression device under the working condition from the updated frequency and temperature correlation table.

If P _d ＜P _dmin S404 is performed.

S407, if exhaust pressure P _d ＜P _dmin And the duration does not reach T ₁ Or within a preset period of time H, the exhaust pressure P _d ＜P _dmin Not reaching T ₂ And acquiring a down-conversion signal.

And acquiring the down-conversion signal through an instruction input by a user. The down-conversion signal may be understood as indicating information indicating a reduction of the operating frequency at which the compression device operates.

S408, judge F ₁ =F _min ？

Judging the first frequency F of the current working of the compression device ₁ Whether it is the lowest frequency F corresponding to the working condition after the presetting or updating _min . For example, according to the frequency and temperature correlation table shown in table 2, the current ambient temperature T is acquired as the ambient temperature T by the ambient temperature T sensor ₁ And obtaining the water outlet temperature T set by a user _out1 Thereby according to the ambient temperature T ₁ And the outlet water temperature T _out1 Acquiring the operating frequency F of the compression device under the working condition from the updated frequency and temperature correlation table ₁₁ Judging the first frequency F of the operation of the compression device at the moment ₁ And as F _min F of (2) ₁₁ Is of a size of (a) and (b).

S409, judging F ₁ Not F _min ，F ₃ =F ₁ -a second step value F ² By F ₃ The duration of the frequency operation reaches T ₅ 。

If the current working frequency of the compression device is not the lowest working frequency corresponding to the working condition, a second step value F ² Increasing the first frequency F corresponding to the current operation of the compression device ₁ Obtaining a fourth frequency F ₃ . The compression device uses the fourth frequency F ₄ Start to operate and monitor at the fourth frequency F ₃ The working time reaches a fifth time T ₅ At the time, the current exhaust pressure P is collected _d And suction pressure P _s 。

S410, judging whether P is _d ≥P _dmin ？

The compression device uses the fourth frequency F ₄ Start to operate and monitor at the fourth frequency F ₃ The working time reaches a fifth time T ₅ At the time, the current exhaust pressure P is collected _d Suction pressureForce P _s And judges the current exhaust pressure P _d Whether or not to be greater than or equal to the suction pressure P _s Corresponding preset exhaust pressure P _dmin 。

S411, if P _d ＜P _dmin ，F ₄ =F ₃ +second step value F ² 。

If the compression device is at the fourth frequency F ₃ Exhaust pressure P during operation _d Less than a preset exhaust pressure P _dmin The compression device is then characterized as operating outside the pressure range at this time, the compression device operating at a fourth frequency F ₃ Operation will result in unstable operation of the compression device, and hence from the fourth frequency F ₃ Based on the second step value F ² To a fifth frequency F ₄ And at a fifth frequency F ₄ Operation continues and S406 is performed.

If P _d ≥P _dmin The compression device is characterized as operating in the pressure range at this time, and the operating frequency of the compression device is also required to be adjusted, and S409 is performed.

The following are device embodiments of the present application, which may be used to perform method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

Referring to fig. 6, a schematic structural diagram of an operating frequency control device according to an exemplary embodiment of the present application is shown. The frequency control means may be implemented as all or part of the apparatus by software, hardware or a combination of both. The operating frequency control device comprises a pressure acquisition module 601, a duration recording module 602 and a frequency increasing module 603.

The pressure obtaining module 601 is configured to obtain a preset discharge pressure corresponding to an air suction pressure when the compression device operates at a first frequency;

a duration recording module 602, configured to start recording a duration of time when the discharge pressure of the compression device operating at the first frequency is less than the preset discharge pressure;

and the frequency increasing module 603 is configured to increase the first frequency to obtain a second frequency when the duration meets a preset condition, and operate at the second frequency.

In one embodiment, the preset condition includes:

the duration that the exhaust pressure is smaller than the preset exhaust pressure when working at the first frequency reaches a first time length;

or the accumulated duration that the exhaust pressure is smaller than the preset exhaust pressure when working at the first frequency in the preset time period reaches the second duration.

In one embodiment, the operating frequency control device further includes:

the second frequency module is used for judging whether the exhaust pressure when working at the second frequency is greater than or equal to the preset exhaust pressure when the working time at the second frequency reaches a third time;

and the first storage module is used for carrying out association storage on the current temperature data corresponding to the second frequency and the compression device if the exhaust pressure when working at the second frequency is greater than or equal to the preset exhaust pressure.

In one embodiment, the operating frequency control device further includes:

and the first updating module is used for, if the exhaust pressure when working at the second frequency is smaller than the preset exhaust pressure, increasing the second frequency based on a first stepping value to obtain a third frequency, updating the third frequency to the second frequency, and executing the step of judging whether the exhaust pressure when working at the second frequency is larger than or equal to the preset exhaust pressure when the working time at the second frequency reaches a third time.

In one embodiment, the frequency boost module 603 includes:

and the step-up unit is used for increasing the first frequency based on the first step value to obtain a second frequency when the duration meets a preset condition, and working at the second frequency.

In one embodiment, a pressure acquisition module is used to

And the pressure acquisition unit is used for acquiring a preset exhaust pressure corresponding to the suction pressure when the compression device works at the first frequency when the working time of the compression device reaches a fourth time.

In one embodiment, the operating frequency control device further includes:

and the second storage module is used for carrying out association storage on the current temperature data corresponding to the first frequency and the compression device based on a preset period when the exhaust pressure of the compression device when working at the first frequency is greater than or equal to the preset exhaust pressure.

In one embodiment, the operating frequency control device further includes:

the firewood lowering signal module is used for acquiring a frequency lowering signal;

the signal response module is used for responding to the frequency reduction signal when the exhaust pressure of the compression device when working at the first frequency is greater than or equal to the preset exhaust pressure, reducing the first frequency based on a second step value to obtain a fourth frequency, and working at the fourth frequency;

a fourth frequency module, configured to determine whether an exhaust pressure when operating at the fourth frequency is greater than or equal to the preset exhaust pressure when an operating duration of operating at the fourth frequency reaches a fifth duration;

And the fifth frequency module is used for operating at a fifth frequency if the exhaust pressure when operating at the fourth frequency is smaller than the preset exhaust pressure, wherein the fifth frequency is obtained by increasing the fourth frequency by the second step value.

In one embodiment, the operating frequency control device further includes:

and a second updating module, configured to, if the exhaust pressure when operating at the fourth frequency is greater than or equal to the preset exhaust pressure, reduce the fourth frequency based on the second step value to obtain a sixth frequency, update the sixth frequency to the fourth frequency, and execute the step of determining whether the exhaust pressure when operating at the fourth frequency is greater than or equal to the preset exhaust pressure when the operating duration when operating at the fourth frequency reaches a fifth duration again.

It should be noted that, in the frequency control apparatus provided in the foregoing embodiment, when the operating frequency control method is executed, only the division of the foregoing functional modules is used as an example, in practical application, the foregoing functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the frequency control device and the working frequency control method provided in the foregoing embodiments belong to the same concept, which embody the detailed implementation process in the method embodiment, and are not repeated here.

The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.

The embodiment of the present application further provides a computer storage medium, where the computer storage medium may store a plurality of instructions, where the instructions are adapted to be loaded by a processor and execute the operating frequency control method according to the embodiment shown in fig. 1 to 5, and the specific execution process may refer to the specific description of the embodiment shown in fig. 1 to 5, which is not repeated herein.

The present application further provides a computer program product, where at least one instruction is stored, where the at least one instruction is loaded by the processor and executed by the processor, where the specific execution process may refer to the specific description of the embodiment shown in fig. 1 to 5, and details are not repeated herein.

Referring to fig. 7, a schematic structural diagram of an electronic device is provided in an embodiment of the present application. As shown in fig. 7, the electronic device 700 may include: at least one processor 701, at least one network interface 704, a user interface 703, a memory 705, at least one communication bus 702.

Wherein the communication bus 702 is used to enable connected communications between these components.

The user interface 703 may include a Display screen (Display), a Camera (Camera), and the optional user interface 703 may further include a standard wired interface, and a wireless interface.

The network interface 704 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), among others.

Wherein the processor 701 may include one or more processing cores. The processor 701 connects the various portions of the overall server 700 using various interfaces and lines, performs various functions of the server 700 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 705, and invoking data stored in the memory 705. Alternatively, the processor 701 may be implemented in hardware in at least one of digital signal processing (DigitalSignal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor 701 may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (GraphicsProcessing Unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 701 and may be implemented by a single chip.

The Memory 705 may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 705 includes a non-transitory computer readable medium (non-transitoroomputter-readable storage medium). Memory 705 may be used to store instructions, programs, code, sets of codes, or instruction sets. The memory 705 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, etc.; the storage data area may store data or the like involved in the above respective method embodiments. The memory 705 may also optionally be at least one storage device located remotely from the processor 701. As shown in fig. 7, an operating system, a network communication module, a user interface module, and a frequency control application program may be included in the memory 705, which is one type of computer storage medium.

In the electronic device 700 shown in fig. 7, the user interface 703 is mainly used for providing an input interface for a user, and acquiring data input by the user; and the processor 701 may be configured to invoke the frequency control application stored in the memory 705 and to specifically perform the following operations:

In one embodiment, the preset condition includes:

In one embodiment, the processor 701 further performs, after executing the step of raising the first frequency to obtain the second frequency when the duration satisfies the preset condition and operating at the second frequency:

when the working time length of working at the second frequency reaches a third time length, judging whether the exhaust pressure of working at the second frequency is greater than or equal to the preset exhaust pressure;

And if the exhaust pressure when working at the second frequency is greater than or equal to the preset exhaust pressure, storing the second frequency and the current temperature data corresponding to the compression device in a correlated way.

In one embodiment, after the processor 701 executes the determining whether the exhaust pressure when operating at the second frequency is greater than or equal to the preset exhaust pressure when the operating time at the second frequency reaches the third time, the processor further executes:

and if the exhaust pressure when working at the second frequency is smaller than the preset exhaust pressure, increasing the second frequency based on a first step value to obtain a third frequency, updating the third frequency to the second frequency, and executing the step of judging whether the exhaust pressure when working at the second frequency is larger than or equal to the preset exhaust pressure when the working time at the second frequency reaches a third time.

In one embodiment, the processor 701 executes the step of raising the first frequency to obtain a second frequency when the duration satisfies a preset condition, and operates at the second frequency, specifically executing:

and when the duration meets a preset condition, the first frequency is increased based on the first step value to obtain a second frequency, and the second frequency is operated.

In one embodiment, the processor 701 executes the obtaining a preset discharge pressure corresponding to the suction pressure when the compression device operates at the first frequency, specifically executing:

and when the working time of the compression device reaches a fourth time, acquiring a preset exhaust pressure corresponding to the suction pressure when working at the first frequency.

In one embodiment, after the processor 701 executes the obtaining the preset discharge pressure corresponding to the suction pressure when the compression device operates at the first frequency, the processor further executes:

and when the exhaust pressure of the compression device when working at the first frequency is greater than or equal to the preset exhaust pressure, carrying out association storage on the first frequency and the current temperature data corresponding to the compression device based on a preset period.

acquiring a down-conversion signal;

when the exhaust pressure of the compression device when working at the first frequency is greater than or equal to the preset exhaust pressure, responding to the frequency-reducing signal, reducing the first frequency based on a second stepping value to obtain a fourth frequency, and working at the fourth frequency;

When the working time length of working at the fourth frequency reaches a fifth time length, judging whether the exhaust pressure of working at the fourth frequency is larger than or equal to the preset exhaust pressure;

and if the exhaust pressure when working at the fourth frequency is smaller than the preset exhaust pressure, working at a fifth frequency, wherein the fifth frequency is obtained by increasing the fourth frequency by the second stepping value.

In one embodiment, after the processor 701 executes the determining whether the exhaust pressure when operating at the fourth frequency is greater than or equal to the preset exhaust pressure when the operating time at the fourth frequency reaches the fifth time, the processor further executes:

and if the exhaust pressure when working at the fourth frequency is greater than or equal to the preset exhaust pressure, reducing the fourth frequency based on the second step value to obtain a sixth frequency, updating the sixth frequency to the fourth frequency, and executing the step of judging whether the exhaust pressure when working at the fourth frequency is greater than or equal to the preset exhaust pressure when the working time at the fourth frequency reaches a fifth time.

Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory, a random access memory, or the like.

The foregoing disclosure is only illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the claims herein, as the equivalent of the claims herein shall be construed to fall within the scope of the claims herein.

Claims

1. A method of operating frequency control, the method comprising:

2. The operating frequency control method according to claim 1, wherein the preset condition includes:

3. The method according to claim 1, wherein when the duration satisfies a preset condition, increasing the first frequency to obtain a second frequency, and operating at the second frequency, further comprises:

4. The operating frequency control method according to claim 3, wherein the determining whether the exhaust pressure at the time of operation at the second frequency is greater than or equal to the preset exhaust pressure when the operating time at the second frequency reaches a third time period further comprises:

5. The method according to claim 4, wherein increasing the first frequency to obtain a second frequency when the duration satisfies a preset condition, and operating at the second frequency, comprises:

6. The method according to claim 1, wherein the step of obtaining a preset discharge pressure corresponding to the suction pressure when the compression device operates at the first frequency, comprises:

7. The method according to claim 1, wherein after the obtaining the preset discharge pressure corresponding to the suction pressure when the compression device operates at the first frequency, further comprises:

8. The method according to claim 1, wherein after the obtaining the preset discharge pressure corresponding to the suction pressure when the compression device operates at the first frequency, further comprises:

acquiring a down-conversion signal;

9. The operating frequency control method according to claim 8, wherein the determining whether the exhaust pressure at the fourth frequency is greater than or equal to the preset exhaust pressure when the operating time period at the fourth frequency reaches a fifth time period, further comprises:

10. A frequency control apparatus, the apparatus comprising:

11. A computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the method steps of any one of claims 1 to 9.

12. An electronic device, comprising: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of claims 1-9.