A method and device for judging fluorine deficiency of an air conditioner, an electronic device and a storage medium

Abstract

The application provides a method and device for judging fluorine deficiency of an air conditioner, electronic equipment and a storage medium. The method comprises the following steps: detecting the compressor power after the air conditioner unit is started and operated for a first time length; if it is determined that the compressor power is less than a first power threshold within a preset time length, the air conditioner unit is controlled to continuously operate at a minimum frequency for a second time length, so as to adjust the compressor power; and whether the adjusted compressor power is located within a preset power range is determined to determine whether the compressor is deficient in fluorine. The application reduces the system design complexity of the air conditioner fluorine deficiency detection.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a method, device, electronic device and storage medium for determining whether an air conditioner is deficient in fluorine. Background Art

[0002] Air conditioning systems can often experience refrigerant shortages (fluorine deficiency) due to issues like refrigerant leaks and valve blockages. This can lead to poor cooling or heating performance, increased exhaust temperatures, oil temperatures, and motor winding temperatures, impacting system reliability. Excessive refrigerant shortages can directly lead to problems like lubricant carbonization and motor winding short circuits and burns. Therefore, timely detection of fluorine deficiency and timely refilling are crucial for air conditioning systems.

[0003] Currently, most air conditioning systems use high / low pressure sensors to detect changes in system pressure to determine if a refrigerant deficiency is warranted, or by combining changes in other temperature sensors. However, high / low pressure sensors are not required for all units, and adding components solely for refrigerant deficiency detection would increase the complexity and cost of the unit. Furthermore, combining temperature sensors requires extensive experimentation to determine the criteria due to the diverse user environments and unit control requirements, which can complicate design.

[0004] There is currently no good solution to the problem of complex air conditioning system design caused by detecting fluorine deficiency in air conditioners. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a method, device, electronic device, and storage medium for determining if an air conditioner is deficient in fluorine, so as to solve the problem of complex air conditioning system design caused by detecting deficient fluorine in the air conditioner. The specific technical solution is as follows:

[0006] In a first aspect, a method for determining whether an air conditioner is deficient in fluorine is provided, the method comprising:

[0007] Start detecting the compressor power after the air conditioning unit starts running for the first time;

[0008] If it is determined that the compressor power is less than the first power threshold value for a predetermined period of time, controlling the air conditioning unit to continuously operate at the lowest frequency for a second period of time to adjust the compressor power;

[0009] Whether the compressor is short of fluorine is determined according to whether the adjusted compressor power is within a preset power range.

[0010] Optionally, determining whether the compressor is short of fluorine according to whether the adjusted compressor power is within a preset power range includes:

[0011] If it is determined that the adjusted compressor power is less than or equal to the second power threshold within the preset time length, the air conditioning unit is controlled to stop running, and a lack of fluorine prompt is sent.

[0012] Optionally, determining whether the compressor lacks fluorine according to whether the adjusted compressor power is within a preset power range comprises:

[0013] If it is determined that the adjusted compressor power is greater than the second power threshold and less than a third power threshold within the preset time length, a lack of fluorine prompt is sent.

[0014] Optionally, determining whether the compressor lacks fluorine according to whether the adjusted compressor power is within a preset power range comprises:

[0015] If it is determined that the adjusted compressor power is greater than or equal to the third power threshold within the preset time length, the air conditioning unit is controlled to recover from the lowest frequency to a normal control state.

[0016] Optionally, before determining that the compressor power is less than a first power threshold within a preset time length, the method further comprises:

[0017] Determining a current running frequency of the air conditioning unit after the air conditioning unit has run for a first time length;

[0018] According to a preset correspondence relationship, determining a current power corresponding to the current running frequency, wherein the correspondence relationship indicates a corresponding relationship between running frequencies and powers of the air conditioning unit;

[0019] Taking the current power as the first power threshold.

[0020] Optionally, after determining the current power corresponding to the current running frequency, the method further comprises:

[0021] Taking any power between the current power and a normal running power of the air conditioning unit as the first power threshold.

[0022] Optionally, before determining that the compressor power is less than or equal to the second power threshold within the preset time length, the method further comprises:

[0023] If it is detected that the current refrigerant amount causes irreversible mechanical damage to the air conditioning unit when the air conditioning unit is being filled, determining that a power at which the air conditioning unit runs at the lowest frequency is the second power threshold.

[0024] Optionally, before determining that the compressor power is greater than the second power threshold and less than a third power threshold within the preset time length, the method further comprises:

[0025] When the air-conditioning unit is being filled, if it is detected that the current amount of refrigerant affects the cooling or heating effect of the air-conditioning unit, the power at which the air-conditioning unit operates at the lowest frequency is determined as the third power threshold.

[0026] In a second aspect, a device for determining whether an air conditioner is deficient in fluorine is provided, the device comprising:

[0027] A detection module, configured to detect the compressor power after the air-conditioning unit starts running for a first period of time;

[0028] a control module, configured to control the air conditioning unit to operate continuously at a minimum frequency for a second time period to adjust the compressor power if it is determined that the compressor power is less than a first power threshold value for a preset time period;

[0029] The determination module is used to determine whether the compressor is short of fluorine according to whether the adjusted compressor power is within a preset power range.

[0030] In a third aspect, an electronic device is provided, comprising a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus;

[0031] Memory for storing computer programs;

[0032] The processor is used to implement any of the steps of the method for determining whether the air conditioner is short of fluorine when executing the program stored in the memory.

[0033] In a fourth aspect, a computer-readable storage medium is provided, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, any of the steps of the method for determining whether an air conditioner is lacking fluorine is implemented.

[0034] Beneficial effects of the embodiments of the present application:

[0035] An embodiment of the present application provides a method for determining whether an air conditioner is short of fluorine. The present application determines whether the air conditioner is short of fluorine based on the compressor frequency, without the need to set up a high / low pressure sensor or a temperature sensor. This solves the need for system design to detect fluorine deficiency in units that do not require high / low pressure sensors, reduces system complexity, solves the problem of difficulty in setting fluorine deficiency protection conditions using a combination of various temperature sensors in the system, and reduces the difficulty of design matching.

[0036] Of course, implementing any product or method of the present application does not necessarily require achieving all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0038] Figure 1 A flow chart of a method for determining if an air conditioner is deficient in fluorine provided in an embodiment of the present application;

[0039] Figure 2 A flowchart of a process for determining fluorine deficiency in an air conditioner provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of the structure of a device for determining if an air conditioner is deficient in fluorine provided in an embodiment of the present application;

[0041] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of this application and have no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0044] In order to solve the problems mentioned in the background technology, according to one aspect of the embodiments of the present application, an embodiment of a method for determining whether an air conditioner is lacking fluorine is provided.

[0045] A method for determining whether an air conditioner is short of fluorine in an embodiment of the present application can be executed by the air conditioner to control the air conditioner unit to shut down when it is detected that the air conditioner is short of fluorine.

[0046] The following will describe in detail a method for determining if an air conditioner is deficient in fluorine provided by an embodiment of the present application in conjunction with a specific embodiment. Figure 1 The specific steps are as follows:

[0047] Step 101: Start detecting the compressor power after the air-conditioning unit starts running for a first period of time.

[0048] After the air conditioning unit is started, it runs for the first time length Tmin, and then starts to detect the compressor power. The first time length T is the compressor initialization time length, which is subject to the unit setting.

[0049] Step 102: If it is determined that the compressor power is less than the first power threshold value within the preset time period, the air conditioning unit is controlled to continuously operate at the lowest frequency for a second time period to adjust the compressor power.

[0050] It is determined that the compressor power is less than the first power threshold P1 within the preset time n min, indicating that the air conditioner may be short of fluorine. Therefore, the air conditioner enters the fluorine deficiency accurate judgment state and controls the air conditioner unit to run continuously at the lowest frequency for the second time t min.

[0051] The preset duration n must be longer than the maximum dwell time during the frequency ramp-up and ramp-down process, ensuring the stability of the unit's power detection. However, it should not be too long to ensure timely protection, typically 3-5 minutes. The second duration t must ensure the unit can operate at the lowest frequency and temperature.

[0052] Due to the complexities of actual operating conditions and the complexities of compressor frequency variations, frequency or load changes may occur during power testing. Therefore, a single test may not accurately determine the fluorine deficiency state. Therefore, a precise fluorine deficiency determination state is set. When the unit is fluorine-deficient, the compressor operating power at the same frequency will be lower than the normal P1. Therefore, a rough determination here indicates the possibility of fluorine deficiency, requiring subsequent precise determination.

[0053] The operating frequency of an inverter air conditioner's compressor varies with capacity requirements, and operating conditions are closely linked to the operating environment. The frequency and environmental combinations are extremely diverse, and it's impossible to simulate all operating conditions during design. Therefore, a rough estimate of the previous condition couldn't directly confirm a fluorine deficiency. Here, reducing the compressor frequency to the minimum operating frequency eliminates frequency variability, making the determination more accurate. Therefore, determining a fluorine deficiency is now relatively precise.

[0054] Step 103: Determine whether the compressor is short of fluorine based on whether the adjusted compressor power is within a preset power range.

[0055] The air conditioner obtains a preset power range. If the compressor power is within the preset power range, it indicates that the compressor is seriously short of fluorine; if the compressor power exceeds the preset power range, it indicates that the compressor is slightly short of fluorine or not short of fluorine.

[0056] In this application, if the compressor power is less than the first power threshold within a preset time period, the air-conditioning unit is controlled to run continuously at the lowest frequency, and whether the compressor is short of fluorine is determined based on whether the adjusted compressor power is within the preset power range.

[0057] This application determines whether the air conditioner is short of fluorine based on the compressor frequency, without the need to set up high / low pressure sensors or temperature sensors. It solves the need for system design to detect fluorine deficiency in units without high / low pressure sensors, reduces system complexity and cost, solves the problem of difficulty in setting fluorine deficiency protection conditions when using various temperature sensing packages in the system, reduces the difficulty of design matching, and shortens the test cycle.

[0058] The method of determining whether the compressor is short of fluorine according to whether the adjusted compressor power is within a preset power range includes three embodiments:

[0059] In the first embodiment, if it is determined that the adjusted compressor power is less than or equal to the second power threshold within a preset time period, the air-conditioning unit is controlled to shut down and a fluorine deficiency prompt is issued.

[0060] If the compressor power is detected to be less than or equal to the second power threshold value P2 for a continuous preset time period of nm min, indicating that the air conditioner is seriously short of fluorine, the air conditioner unit is controlled to shut down and a fluorine shortage prompt is issued.

[0061] In the second embodiment, if it is determined that the adjusted compressor power is greater than the second power threshold and less than the third power threshold within a preset time period, a fluorine deficiency prompt is issued.

[0062] If the second power threshold value P2 is less than the compressor power and less than the third power threshold value P3 for a continuous preset time period nmin, it is determined to be a state of slight fluorine deficiency, and the unit issues a fluorine deficiency reminder.

[0063] In a third embodiment, if it is determined that the adjusted compressor power is greater than or equal to a third power threshold within a preset time period, the air-conditioning unit is controlled to recover from the lowest frequency to a normal control state.

[0064] If the compressor power is continuously detected for a preset time length nm min ≥ the third power threshold P3, the fluorine deficiency precise judgment state is exited and the frequency returns to normal control.

[0065] As an optional embodiment, before determining that the compressor power is less than the first power threshold within a preset time period, the method also includes: determining the current operating frequency of the air-conditioning unit after the air-conditioning unit starts running for the first time period; determining the current power corresponding to the current operating frequency according to a preset correspondence, wherein the correspondence indicates the correspondence between the operating frequency and power of the air-conditioning unit; and using the current power as the first power threshold.

[0066] The air conditioner stores a preset correspondence, which indicates the correspondence between the operating frequency and power of the air-conditioning unit. The air conditioner determines the current operating frequency of the air-conditioning unit after the air-conditioning unit starts running for the first period of time, and then determines the current power corresponding to the current operating frequency based on the correspondence. On the one hand, the air conditioner can use the current power as the first power threshold.

[0067] Alternatively, the air conditioner can use a power level between lower than the current power level and higher than the unit's normal operating power level as the first power threshold. To prevent frequent frequency reductions to accurately determine refrigerant deficiency, the power value can be appropriately lower than normal, but should not be lower than the value at which the unit operates reliably. Depending on the actual situation, the power corresponding to the frequency at which the unit experiences a slight refrigerant deficiency without causing irreversible damage can be used.

[0068] As an optional embodiment, before determining that the compressor power is less than or equal to the second power threshold within a preset time period, the method also includes: when the air-conditioning unit is being filled, if it is detected that the current amount of refrigerant causes irreversible mechanical damage to the air-conditioning unit, determining the power at which the air-conditioning unit operates at the lowest frequency as the second power threshold.

[0069] As an optional embodiment, before determining that the compressor power is greater than the second power threshold and less than the third power threshold within a preset time period, the method also includes: when the air-conditioning unit is being filled, if it is detected that the current amount of refrigerant affects the cooling or heating effect of the air-conditioning unit, determining the power at which the air-conditioning unit operates at the lowest frequency as the third power threshold.

[0070] Optionally, the embodiment of the present application also provides a processing flow chart for judging the lack of fluorine in an air conditioner, such as Figure 2 shown.

[0071] After the unit is started, it will run for Tmin to detect and judge the compressor power. If the compressor power is detected to be less than P1 for n min continuously, it will enter the state of accurate judgment of fluorine deficiency: adjust the set frequency = the lowest frequency that the unit can operate, and detect and judge the compressor power after tmin. If P2 is detected to be less than compressor power and less than P3 for n min continuously, it will be judged as a state of slight fluorine deficiency, and the unit will report fluorine deficiency and will not be shut down; if the compressor power is detected to be ≤P2 for n min continuously, the unit will shut down and report fluorine deficiency protection; if the compressor power is detected to be ≥P3 for n min continuously, the state of accurate judgment of fluorine deficiency will be exited and the frequency will return to normal control.

[0072] Based on the same technical concept, the embodiment of the present application also provides a device for judging whether an air conditioner is short of fluorine. Figure 3 As shown, the device includes:

[0073] The detection module 301 is used to detect the compressor power after the air-conditioning unit starts to run for a first period of time;

[0074] The control module 302 is configured to control the air conditioning unit to operate continuously at the lowest frequency for a second time period if it is determined that the compressor power is less than the first power threshold value within a preset time period;

[0075] The determination module 303 is configured to determine whether the compressor is short of fluorine according to whether the adjusted compressor power is within a preset power range.

[0076] Optionally, the determination module 303 is configured to:

[0077] If it is determined that the adjusted compressor power is less than or equal to the second power threshold within a preset time period, the air-conditioning unit is controlled to shut down and a fluorine deficiency prompt is issued.

[0078] Optionally, the determination module 303 is configured to:

[0079] If it is determined that the adjusted compressor power is greater than the second power threshold and less than the third power threshold within the preset time period, a fluorine deficiency prompt is issued.

[0080] Optionally, the determination module 303 is configured to:

[0081] If it is determined that the adjusted compressor power is greater than or equal to the third power threshold within the preset time period, the air-conditioning unit is controlled to recover from the lowest frequency to the normal control state.

[0082] Optionally, the device is also used to:

[0083] Determine the current operating frequency of the air conditioning unit after the first operating time;

[0084] Determining the current power corresponding to the current operating frequency according to a preset corresponding relationship, wherein the corresponding relationship indicates the corresponding relationship between the operating frequency and the power of the air conditioning unit;

[0085] The current power is used as the first power threshold.

[0086] Optionally, the device is also used to:

[0087] Any power lower than the current power and higher than the normal operating power of the air-conditioning unit is used as the first power threshold.

[0088] Optionally, the device is also used to:

[0089] When the air-conditioning unit is being filled, if it is detected that the current amount of refrigerant causes irreversible mechanical damage to the air-conditioning unit, the power at which the air-conditioning unit operates at the lowest frequency is determined as the second power threshold.

[0090] Optionally, the device is also used to:

[0091] When the air conditioning unit is being primed, if it is detected that the current amount of refrigerant affects the cooling or heating effect of the air conditioning unit, the power at which the air conditioning unit operates at the lowest frequency is determined as the third power threshold.

[0092] According to another aspect of the embodiment of the present application, the present application provides an electronic device, such as Figure 4As shown, it includes a memory 403, a processor 401, a communication interface 402 and a communication bus 404. The memory 403 stores a computer program that can be run on the processor 401. The memory 403 and the processor 401 communicate through the communication interface 402 and the communication bus 404. When the processor 401 executes the computer program, the steps of the above method are implemented.

[0093] The memory and processor in the electronic device communicate via a communication bus and a communication interface. The communication bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus can be divided into an address bus, a data bus, a control bus, and the like.

[0094] The memory may include random access memory (RAM) or non-volatile memory, such as at least one disk storage. Alternatively, the memory may be at least one storage device located away from the processor.

[0095] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components.

[0096] According to another aspect of the embodiments of the present application, a computer-readable medium having non-volatile program code executable by a processor is provided.

[0097] Optionally, in an embodiment of the present application, a computer-readable medium is configured to store program code for a processor to execute the above method.

[0098] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0099] When implementing the embodiments of the present application, reference may be made to the above embodiments, which have corresponding technical effects.

[0100] It is understood that the embodiments described herein may be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions of the present application, or a combination thereof.

[0101] For software implementation, the technology herein can be implemented by a unit that performs the functions herein. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

[0102] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0103] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0104] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0105] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0106] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0107] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application are essentially or partly contributed to the prior art or part of the technical solutions can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard drive, a ROM, a RAM, a magnetic disk, or an optical disk. It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. Without further constraints, an element defined by the phrase "comprises a..." does not preclude the existence of additional identical elements in the process, method, article or apparatus that includes the element.

[0108] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A method for determining if an air conditioner is deficient in fluorine, characterized in that: The method includes: starting to detect the compressor power after the air conditioning unit starts to run for a first period of time; If it is determined that the compressor power is less than the first power threshold value within the preset time period, controlling the air conditioning unit to continuously operate at the lowest frequency for a second time period to adjust the compressor power; Whether the compressor is short of fluorine is determined according to whether the adjusted compressor power is within a preset power range.

2. The method according to claim 1, characterized in that Determining whether the compressor is short of fluorine according to whether the adjusted compressor power is within a preset power range includes: If it is determined that the adjusted compressor power is less than or equal to the second power threshold within the preset time period, the air-conditioning unit is controlled to shut down and a fluorine deficiency prompt is issued.

3. The method according to claim 2, characterized in that Determining whether the compressor is short of fluorine according to whether the adjusted compressor power is within a preset power range includes: If it is determined that the adjusted compressor power is greater than the second power threshold and less than the third power threshold within the preset time period, a fluorine deficiency prompt is issued.

4. The method according to claim 1, wherein Determining whether the compressor is short of fluorine according to whether the adjusted compressor power is within a preset power range includes: If it is determined that the adjusted compressor power is greater than or equal to the third power threshold within the preset time period, the air-conditioning unit is controlled to recover from the lowest frequency to a normal control state.

5. The method according to claim 1, wherein Before determining that the compressor power is less than a first power threshold value for a preset time period, the method further includes: Determining a current operating frequency of the air conditioning unit after starting to operate for a first period of time; Determining the current power corresponding to the current operating frequency according to a preset corresponding relationship, wherein the corresponding relationship indicates the corresponding relationship between the operating frequency and power of the air-conditioning unit; The current power is used as the first power threshold.

6. The method according to claim 5, characterized in that After determining the current power corresponding to the current operating frequency, the method further includes: Any power lower than the current power and higher than the normal operating power of the air-conditioning unit is used as the first power threshold.

7. The method according to claim 2, characterized in that Before determining that the compressor power is less than or equal to the second power threshold within the preset time period, the method further includes: When the air-conditioning unit is being filled, if it is detected that the current amount of refrigerant causes irreversible mechanical damage to the air-conditioning unit, the power at which the air-conditioning unit operates at the lowest frequency is determined as the second power threshold.

8. The method according to claim 7, characterized in that Before determining that the compressor power is greater than the second power threshold and less than the third power threshold within the preset time period, the method further includes: When the air-conditioning unit is being filled, if it is detected that the current amount of refrigerant affects the cooling or heating effect of the air-conditioning unit, the power at which the air-conditioning unit operates at the lowest frequency is determined as the third power threshold.

9. A device for determining if an air conditioner is deficient in fluorine, characterized in that: The device comprises: A detection module, configured to detect the compressor power after the air-conditioning unit starts running for a first period of time; a control module, configured to control the air conditioning unit to operate continuously at a minimum frequency for a second time period to adjust the compressor power if it is determined that the compressor power is less than a first power threshold value for a preset time period; The determination module is used to determine whether the compressor is short of fluorine according to whether the adjusted compressor power is within a preset power range.

10. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; Memory for storing computer programs; A processor, configured to implement the method according to any one of claims 1 to 8 when executing a program stored in a memory.

11. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

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