An automatic control method and device for preventing icing of an automobile air conditioner

Abstract

The application discloses an automobile air conditioner anti-icing automatic control method and device, relates to the technical field of commercial vehicle air conditioner systems, and discloses an automobile air conditioner anti-icing automatic control method, which comprises the following steps: judging whether the deviation between the actual output value of a fan and a calibration value exceeds a preset range; if the deviation does not exceed the preset range, reducing the humidity of an evaporator surface and increasing the temperature of the evaporator surface according to the actual output value of the fan; and if the deviation exceeds the preset range, selecting to increase the lowest temperature control temperature or to shut down the automobile air conditioner according to the exceeding degree of the deviation. The automobile air conditioner anti-icing automatic control method can automatically identify icing and automatically control ice melting. The control method can effectively prevent the function of the air conditioner from being lost due to a large amount of icing on the evaporator surface.

Description

Technical Field

[0001] This invention relates to the field of commercial vehicle air conditioning system technology, specifically to an automatic control method and device for preventing icing in automotive air conditioning. Background Technology

[0002] When a car's air conditioning system is running, a temperature sensor controls the compressor's engagement to prevent icing on the evaporator surface. A typical control method involves setting a range: T1 to T2; below T1, the compressor shuts off, and above T2, it starts.

[0003] The surface temperature uniformity of the evaporator varies under different operating conditions. The accuracy of the thermostat and the transmission of the signal to the compressor for opening and closing also vary. Under extreme conditions (low outdoor temperature, high humidity, low air volume), if the compressor receives inaccurate data and delays disconnecting for a few seconds, it will cause ice to form on the evaporator surface.

[0004] Once icing begins, ice condenses locally on the evaporator surface. At this point, the temperature deviation measured by the thermostat on the evaporator surface is already significant, causing the thermostat to transmit incorrect temperature information. The air conditioning compressor continues to run, leading to complete blockage of the evaporator and rendering it unable to cool. Icing causes system blockage, resulting in loss of both cooling and ventilation functions, severely impacting driver comfort.

[0005] Traditional technologies change the temperature by adjusting the temperature control value and then controlling the compressor to start and stop. Some technologies collect a large number of signals to precisely adjust the temperature control value to prevent the air conditioner from freezing. However, there is no specific way to calculate the temperature control value, and collecting too many signals makes it difficult to implement in the whole vehicle.

[0006] Currently, due to the complexity of the environment, there is no way to completely prevent air conditioning systems from icing during operation. Therefore, it is necessary to propose a method for preventing icing in automotive air conditioning systems. This method should reduce the risk of icing and automatically defrost after icing occurs, eliminating the impact of icing on driver comfort. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides an automatic control method, device, equipment, and storage medium for preventing icing in automotive air conditioning systems. This method can reduce the risk of icing in automotive air conditioning systems and automatically de-ic the system after icing occurs, thus eliminating the impact of icing on driver comfort.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] In a first aspect, an automatic control method for preventing icing in automotive air conditioning is provided, characterized in that the method includes the following steps:

[0010] Determine whether the deviation between the actual output value and the calibrated value of the fan exceeds the preset range;

[0011] If the deviation does not exceed the preset range, the humidity of the evaporator surface is reduced, and the evaporator surface temperature is increased according to the actual output value of the fan.

[0012] If the deviation exceeds the preset range, the minimum temperature control temperature will be increased or the car air conditioning will be turned off, depending on the degree of deviation.

[0013] In some embodiments, reducing the surface humidity of the evaporator if the deviation does not exceed a preset range includes:

[0014] If the outdoor humidity is higher than the indoor humidity, adjust the air intake mode to external circulation mode;

[0015] If the outdoor humidity is lower than the indoor humidity, adjust the air intake mode to recirculation mode.

[0016] In some embodiments, if the deviation does not exceed a preset range, and the evaporator surface temperature is increased according to the actual output value of the fan, the following steps are included:

[0017] When the air volume is below 20%, increase the minimum temperature control temperature by 3°C, and set the temperature control value between 6°C and 8°C.

[0018] When the air volume is between 20% and 40%, increase the minimum temperature control temperature by 2°C, and set the temperature control value between 5°C and 7°C.

[0019] When the air volume is above 40%, the temperature control value remains unchanged and is set between 3℃ and 5℃.

[0020] In some embodiments, if the deviation exceeds a preset range, then selecting to increase the minimum temperature control temperature or turn off the car air conditioning based on the degree of deviation includes:

[0021] When the actual output value of the fan exceeds the set value by 20% to 40%, the temperature control value is increased to 7℃ to 10℃ until the actual output value of the fan exceeds the set value to the preset range.

[0022] When the actual output value of the fan exceeds the set value by more than 40%, disconnect the air conditioner compressor switch to stop the compressor from working until the actual output value of the fan exceeds the set value to the preset range.

[0023] In some embodiments, the preset range is no more than 5%.

[0024] Secondly, an automatic control device for preventing icing in automotive air conditioning is provided, comprising:

[0025] The judgment unit is used to determine whether the deviation between the actual output value and the calibrated value of the fan exceeds the preset range.

[0026] The control unit is used to reduce the surface humidity of the evaporator and increase the surface temperature of the evaporator according to the actual output value of the fan if the deviation does not exceed the preset range.

[0027] The control unit is also used to, if the deviation exceeds a preset range, select to increase the minimum temperature control temperature or turn off the car air conditioner based on the degree of deviation.

[0028] In some embodiments, the control unit is used to:

[0029] If the outdoor humidity is higher than the indoor humidity, adjust the air intake mode to external circulation mode;

[0030] If the outdoor humidity is lower than the indoor humidity, adjust the air intake mode to recirculation mode.

[0031] In some embodiments, the control unit is further configured to:

[0032] When the air volume is below 20%, increase the minimum temperature control temperature by 3°C, and set the temperature control value between 6°C and 8°C.

[0033] When the air volume is between 20% and 40%, increase the minimum temperature control temperature by 2°C, and set the temperature control value between 5°C and 7°C.

[0034] When the air volume is above 40%, the temperature control value remains unchanged and is set between 3℃ and 5℃.

[0035] Thirdly, a computer device is provided, comprising: a processor, a memory, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, it implements the method described in any one of the first aspects.

[0036] Fourthly, a computer-readable storage medium is provided, on which a computer program is stored, wherein when the computer program is executed by a processor, it implements the method described in any one of the first aspects.

[0037] In this invention, the deviation between the actual output value and the calibrated value of the fan is determined to be within a preset range. If the deviation is within the preset range, the humidity on the evaporator surface is reduced, and the evaporator surface temperature is increased according to the actual output value of the fan. If the deviation exceeds the preset range, the minimum temperature control temperature is increased or the car air conditioner is turned off according to the degree of deviation. This invention adjusts the fan output power and temperature control temperature in a timely manner by acquiring the humidity inside and outside the car and the output power of the air conditioner, so as to avoid the situation where the air conditioner function fails due to excessive ice formation on the evaporator surface. Attached Figure Description

[0038] Figure 1This is a flowchart of a first embodiment of an automatic control method for preventing icing in automotive air conditioning according to the present invention;

[0039] Figure 2 This is a flowchart illustrating the determination of fan power in an automatic anti-icing control method for automotive air conditioning according to an embodiment of the present invention.

[0040] Figure 3 This is a flowchart of condition a in an automatic control method for preventing icing of automotive air conditioning according to an embodiment of the present invention;

[0041] Figure 4 This is a flowchart of condition b in an automatic control method for preventing icing of automotive air conditioning according to the present invention;

[0042] Figure 5 This is a schematic diagram of an automatic anti-icing control device for automotive air conditioning in an embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of the structure of a computer device according to an embodiment of the present invention. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] The automatic control method, device, and related equipment for preventing icing in automotive air conditioning provided in embodiments of the present invention are described below. See also... Figure 1 , Figure 1 This is a flowchart illustrating an automatic anti-icing control method for automotive air conditioning provided in an embodiment of the present invention. Figure 1 As shown, the method includes, but is not limited to, the following steps:

[0046] S1. Determine whether the deviation between the actual output value and the calibrated value of the fan exceeds the preset range;

[0047] S2. If the deviation does not exceed the preset range, reduce the surface humidity of the evaporator and increase the surface temperature of the evaporator according to the actual output value of the fan;

[0048] S3. If the deviation exceeds the preset range, then the minimum temperature control temperature is increased or the car air conditioner is turned off, depending on the degree of deviation.

[0049] Specifically, such as Figure 2As shown, the car air conditioning fan speed is first identified. In order to determine the theoretically rated output power of the fan speed, the actual output power of the car air conditioning fan is compared with the theoretically rated output power of the fan speed. If the actual output power deviates from the rated power by more than 20%, it is determined to be operating condition b. If the actual output power deviates from the rated power by less than 20%, it is determined to be operating condition a.

[0050] It should be noted that the automatic anti-icing control method for automotive air conditioning in this invention divides the prevention of automotive air conditioning icing into two scenarios. One is condition a, in step S2, where the deviation between the actual output value and the calibrated value of the fan does not exceed the preset range. In this case, the measures taken are to reduce the risk of automotive air conditioning icing. The other is condition b, in step S3, where the deviation between the actual output value and the calibrated value of the fan exceeds the preset range. In this case, the measures taken are to eliminate automotive air conditioning icing.

[0051] In some embodiments, such as Figure 3 As shown, if the deviation does not exceed the preset range, the evaporator surface humidity is reduced by: if the outdoor humidity is greater than the indoor humidity, the air intake mode is adjusted to external circulation mode; if the outdoor humidity is less than the indoor humidity, the air intake mode is adjusted to internal circulation mode. The purpose of this operation is to ensure that the humidity of the air entering the air conditioner is low, thereby reducing the humidity on the evaporator surface and preventing the air conditioner from icing up.

[0052] In some embodiments, if the deviation does not exceed a preset range, and the evaporator surface temperature is increased according to the actual output value of the fan, the following steps are included:

[0053] When the air volume is below 20%, increase the minimum temperature control temperature by 3°C, and set the temperature control value between 6°C and 8°C.

[0054] When the air volume is between 20% and 40%, increase the minimum temperature control temperature by 2°C, and set the temperature control value between 5°C and 7°C.

[0055] When the air volume is above 40%, the temperature control value remains unchanged and is set between 3℃ and 5℃.

[0056] It's worth noting that below 20% airflow corresponds to air conditioning settings 1-2; 20%-40% corresponds to settings 3-4; and above 40% corresponds to settings 4 and above. The lower the airflow and the lower the evaporator surface temperature, the more prone the car's air conditioning system is to icing. Therefore, when the airflow is low, the temperature control setting needs to be increased to reduce the risk of icing. This method determines the temperature control range based on the airflow value, significantly reducing the risk of icing in the car's air conditioning system.

[0057] In some embodiments, such as Figure 4 As shown, if the deviation exceeds a preset range, then based on the degree of deviation, the minimum temperature control temperature is increased, or the car air conditioning is turned off, including:

[0058] When the actual output value of the fan exceeds the set value by 20% to 40%, the temperature control value is increased to 7℃ to 10℃ until the actual output value of the fan exceeds the set value to the preset range.

[0059] When the actual output value of the fan exceeds the set value by more than 40%, disconnect the air conditioner compressor switch to stop the compressor from working until the actual output value of the fan exceeds the set value to the preset range.

[0060] It's worth noting that in this situation, which falls under condition b, the system determines that the air conditioning system is already icing up based on the ambient temperature being below 20℃, the humidity of the incoming air being greater than 60%, and the fan speed being below level 4. When the system detects icing, it first sets the air conditioner fan to a specific speed, observing a 20% increase in output power. This is because when the air conditioning system begins to ic, the amount of ice on the evaporator surface gradually increases, causing a continuous increase in air resistance on the evaporator surface and a shift in the fan's operating point, thus resulting in an abnormal increase in the air conditioner fan's output power. In this case, it's necessary to increase the minimum temperature setting of the temperature control value to prevent further icing. Generally, the minimum temperature control value is increased to 7℃~10℃. Observe the air conditioner fan's output power; after adjustment, the compressor's suction frequency will decrease, reducing icing on the evaporator surface. If the air conditioner fan output power does not decrease but instead continues to increase to 40% above the standard power, it indicates that the air conditioner icing situation has not been alleviated and has instead entered a rapid icing development phase. At this point, increasing the minimum temperature control value will no longer be effective in controlling the icing. To prevent the icing situation from worsening, it is necessary to directly shut down the air conditioning system, stop the compressor from working, and wait for the ice on the evaporator surface to melt. When it is detected that the output fan power at a specific setting exceeds the standard power within the preset range, it indicates that the icing has disappeared.

[0061] In some embodiments, the preset range is no more than 5%. When the output fan power at a specific speed exceeds the standard power by no more than 5%, it indicates that the air conditioning system is normal and there is no ice buildup inside the car's air conditioning system. In this case, the system switches back to operating condition a to perform anti-icing operations.

[0062] The automatic anti-icing control method for automotive air conditioning provided in this embodiment determines whether the deviation between the actual output value and the calibrated value of the fan exceeds a preset range. If the deviation does not exceed the preset range, the humidity on the evaporator surface is reduced, and the evaporator surface temperature is increased according to the actual output value of the fan. If the deviation exceeds the preset range, the minimum temperature control temperature is increased or the automotive air conditioning is turned off according to the degree of deviation. This invention, by acquiring the humidity inside and outside the vehicle and the output power of the air conditioning, adjusts the fan output power and temperature control temperature in a timely manner to avoid the situation where a large amount of ice forms on the evaporator surface, causing the air conditioning function to fail.

[0063] See Figure 5 This invention also provides an automatic anti-icing control device for automotive air conditioning, comprising:

[0064] The judgment unit is used to determine whether the deviation between the actual output value and the calibrated value of the fan exceeds the preset range.

[0065] The control unit is used to reduce the surface humidity of the evaporator and increase the surface temperature of the evaporator according to the actual output value of the fan if the deviation does not exceed the preset range.

[0066] The control unit is also used to, if the deviation exceeds a preset range, select to increase the minimum temperature control temperature or turn off the car air conditioner based on the degree of deviation.

[0067] In some embodiments, the control unit is used to:

[0068] If the outdoor humidity is higher than the indoor humidity, adjust the air intake mode to external circulation mode;

[0069] If the outdoor humidity is lower than the indoor humidity, adjust the air intake mode to recirculation mode.

[0070] In some embodiments, the control unit is further configured to:

[0071] When the air volume is below 20%, increase the minimum temperature control temperature by 3°C, and set the temperature control value between 6°C and 8°C.

[0072] When the air volume is between 20% and 40%, increase the minimum temperature control temperature by 2°C, and set the temperature control value between 5°C and 7°C.

[0073] When the air volume is above 40%, the temperature control value remains unchanged and is set between 3℃ and 5℃.

[0074] In some embodiments, the control unit is further configured to:

[0075] When the actual output value of the fan exceeds the set value by 20% to 40%, the temperature control value is increased to 7℃ to 10℃ until the actual output value of the fan exceeds the set value to the preset range.

[0076] When the actual output value of the fan exceeds the set value by more than 40%, disconnect the air conditioner compressor switch to stop the compressor from working until the actual output value of the fan exceeds the set value to the preset range.

[0077] In some embodiments, the determination unit is also used to determine whether the output fan power at a specific speed exceeds the standard power by more than 5%.

[0078] In summary, the automatic anti-icing control device for automotive air conditioning provided in this embodiment determines whether the deviation between the actual output value and the calibrated value of the fan exceeds a preset range. If the deviation does not exceed the preset range, the humidity on the evaporator surface is reduced, and the evaporator surface temperature is increased according to the actual output value of the fan. If the deviation exceeds the preset range, the minimum temperature control temperature is increased or the automotive air conditioning is turned off according to the degree of deviation. This invention, by acquiring the humidity inside and outside the vehicle and the output power of the air conditioning, adjusts the fan output power and temperature control temperature in a timely manner to avoid the situation where a large amount of ice forms on the evaporator surface, causing the air conditioning function to fail.

[0079] It should be noted that the step numbers in the embodiments of this application do not limit the order of operations in the technical solution of this application.

[0080] It should be noted that those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the device and each unit described above can be referred to the corresponding process in the aforementioned embodiment of the automatic control method for preventing icing of automotive air conditioning, and will not be repeated here.

[0081] The apparatus provided in the above embodiments can be implemented as a computer program, which can be used in, for example... Figure 6 It runs on the computer device shown.

[0082] This application also provides a computer device, including: a memory, a processor, and a network interface connected via a system bus. The memory stores at least one instruction, which is loaded and executed by the processor to implement all or part of the steps of the aforementioned automatic control method for preventing icing of automotive air conditioning.

[0083] The network interface is used for network communication, such as sending assigned tasks. Those skilled in the art will understand that... Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0084] A processor can be a CPU, or other general-purpose processors, DSPs (Digital Signal Processors), ASICs (Application Specific Integrated Circuits), FPGAs (Field Programmable Gate Arrays), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor can be a microprocessor, or any conventional processor. The processor is the control center of a computer device, connecting all parts of the computer device through various interfaces and lines.

[0085] Memory can be used to store computer programs and / or modules. The processor implements various functions of the computer device by running or executing the computer programs and / or modules stored in the memory, and by accessing data stored in the memory. Memory can mainly include a program storage area and a data storage area. The program storage area can store the operating system, at least one application program required for a function (such as video playback, image playback, etc.), etc.; the data storage area can store data created based on the use of the mobile phone (such as video data, image data, etc.). Furthermore, memory can include high-speed random access memory (RAM), and can also include non-volatile memory, such as hard disks, RAM, plug-in hard disks, SMC (Smart MediaCard), SD (Secure Digital) cards, flash cards, at least one disk storage device, flash memory device, or other volatile solid-state storage devices.

[0086] This application also provides a computer-readable storage medium storing a computer program thereon. When the computer program is executed by a processor, it implements all or part of the steps of the aforementioned automatic control method for preventing icing of automotive air conditioning.

[0087] The embodiments of this application can implement all or part of the aforementioned processes, or they can be accomplished by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various methods described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, ROM (Read-Only memory), RAM (Random Access memory), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0088] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, servers, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0089] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0090] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0091] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this 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 this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An automatic control method for preventing icing in automotive air conditioning, characterized in that, The method includes the following steps: Determine whether the deviation between the actual output value and the calibrated value of the fan exceeds the preset range; If the deviation does not exceed the preset range, the humidity of the evaporator surface is reduced, and the evaporator surface temperature is increased according to the actual output value of the fan. If the deviation exceeds the preset range, the minimum temperature control temperature will be increased or the car air conditioning will be turned off, depending on the degree of deviation. If the deviation does not exceed the preset range, and the evaporator surface temperature is increased according to the actual output value of the fan, the following steps are included: When the air volume is below 20%, increase the minimum temperature control temperature by 3°C, and set the temperature control value between 6°C and 8°C. When the air volume is between 20% and 40%, increase the minimum temperature control temperature by 2°C, and set the temperature control value between 5°C and 7°C. When the air volume is above 40%, the temperature control value remains unchanged and is set at 3℃~5℃. If the deviation does not exceed the preset range, then reducing the surface humidity of the evaporator includes: If the outdoor humidity is higher than the indoor humidity, adjust the air intake mode to recirculation mode. If the outdoor humidity is lower than the indoor humidity, adjust the air intake mode to external circulation mode; If the deviation exceeds a preset range, then based on the degree of deviation, the system may choose to either increase the minimum temperature control temperature or turn off the car's air conditioning, including: When the actual output value of the fan exceeds the set value by 20% to 40%, the temperature control value is increased to 7℃ to 10℃ until the actual output value of the fan exceeds the set value to the preset range. When the actual output value of the fan exceeds the set value by more than 40%, disconnect the air conditioner compressor switch to stop the compressor from working until the actual output value of the fan exceeds the set value to the preset range.

2. The automatic control method for preventing icing in automotive air conditioning as described in claim 1, characterized in that, The preset range is no more than 5%.

3. An automatic control device for preventing icing in automotive air conditioning, characterized in that, include: The judgment unit is used to determine whether the deviation between the actual output value and the calibrated value of the fan exceeds the preset range. The control unit is used to reduce the surface humidity of the evaporator and increase the surface temperature of the evaporator according to the actual output value of the fan if the deviation does not exceed the preset range. The control unit is also used to, if the deviation exceeds a preset range, select to increase the minimum temperature control temperature or turn off the car air conditioner according to the degree of deviation. The control unit is also used for: When the air volume is below 20%, increase the minimum temperature control temperature by 3°C, and set the temperature control value between 6°C and 8°C. When the air volume is between 20% and 40%, increase the minimum temperature control temperature by 2°C, and set the temperature control value between 5°C and 7°C. When the air volume is above 40%, the temperature control value remains unchanged and is set at 3℃~5℃. The control unit is used for: If the outdoor humidity is higher than the indoor humidity, adjust the air intake mode to recirculation mode. If the outdoor humidity is lower than the indoor humidity, adjust the air intake mode to external circulation mode; The control unit is also used for: When the actual output value of the fan exceeds the set value by 20% to 40%, the temperature control value is increased to 7℃ to 10℃ until the actual output value of the fan exceeds the set value to the preset range. When the actual output value of the fan exceeds the set value by more than 40%, disconnect the air conditioner compressor switch to stop the compressor from working until the actual output value of the fan exceeds the set value to the preset range.

4. A computer device, characterized in that, The computer device includes a processor, a memory, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, it implements the steps of the method as described in claim 1 or 2.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, it implements the steps of the method as described in claim 1 or 2.

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