Defrosting control method and device of equipment, electronic equipment and storage medium

Abstract

The embodiment of the invention discloses a defrosting control method and device of equipment, electronic equipment and a computer readable storage medium, and relates to the technical field of intelligent control, and the method comprises the steps that the instantaneous energy efficiency ratio corresponding to the equipment is monitored; and in response to the situation that the instantaneous energy efficiency ratio meets a preset condition, defrosting operation is executed. Therefore, whether the equipment is influenced by the frost layer or not can be indirectly judged by monitoring whether the instantaneous energy efficiency ratio meets the preset condition or not, so that whether defrosting operation needs to be executed or not is decided. In this way, misjudgment on the defrosting opportunity caused by the influence of external environment conditions is not likely to happen, and the defrosting opportunity is more reliable and accurate.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of intelligent control technology, and in particular to a defrosting control method and device for a device, an electronic device, and a computer-readable storage medium. Background Art

[0002] In the field of defrost control of air source heat pumps, the current method mainly relies on detecting parameters such as the outer ring temperature and the outdoor heat exchanger temperature to determine whether the unit has reached the defrost entry conditions. When the air source heat pump is running, its external environmental conditions such as temperature, humidity, wind speed, etc. are constantly changing. These changes will directly affect the operating status and heat exchange effect of the heat pump unit.

[0003] For example, when the ambient temperature is low but the humidity is high, the heat pump unit is more likely to frost. Even if the outdoor heat exchanger temperature does not drop to a very low level, a thick frost layer may form due to the high humidity. At this time, if the need for defrosting is determined only based on the outdoor heat exchanger temperature, the timing of defrosting may be misjudged, resulting in untimely or excessive defrosting. Summary of the invention

[0004] The embodiments of the present disclosure provide a defrost control method, device, electronic device and computer-readable storage medium for an equipment, aiming to solve at least one of the technical problems in the related art to a certain extent.

[0005] In a first aspect, an embodiment of the present disclosure provides a defrosting control method for a device, the method comprising:

[0006] Monitor the instantaneous energy efficiency ratio of the equipment;

[0007] In response to the instantaneous energy efficiency ratio satisfying a preset condition, a defrosting operation is performed.

[0008] In a second aspect, the present disclosure also provides a defrost control device for a device, the device comprising:

[0009] A monitoring module is used to monitor the instantaneous energy efficiency ratio of the equipment;

[0010] The execution module is used to execute a defrosting operation in response to the instantaneous energy efficiency ratio corresponding to the device meeting a preset condition.

[0011] In a third aspect, an embodiment of the present disclosure further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps in the defrost control method of the above-mentioned device when executed by the processor.

[0012] In a fourth aspect, an embodiment of the present disclosure further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps in the defrost control method of the above-mentioned device are implemented.

[0013] In a fifth aspect, the embodiments of the present disclosure further provide a computer program product or a computer program, the computer program product or the computer program including computer instructions, the computer instructions being stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the methods provided in the various optional implementations described in the embodiments of the present disclosure.

[0014] The disclosed embodiment first monitors the instantaneous energy efficiency ratio corresponding to the device, and then performs a defrost operation in response to the instantaneous energy efficiency ratio meeting a preset condition. Since the instantaneous energy efficiency ratio is the ratio of the cooling capacity of the device to the power consumption at a certain moment, it directly reflects the operating efficiency and performance status of the device at that moment. When the device is frosted, the frost layer will hinder the transfer of heat, resulting in a decrease in the cooling efficiency of the device, and the power consumption may increase. Therefore, by monitoring whether the instantaneous energy efficiency ratio meets the preset conditions, it is possible to indirectly determine whether the device is affected by the frost layer, thereby determining whether a defrost operation needs to be performed. In this way, it is not easy to be misjudged due to the influence of external environmental conditions on the timing of defrosting, making the timing of defrosting more reliable and accurate.

[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a flow chart of a defrosting control method for a device provided in the first embodiment of the present disclosure;

[0018] Figure 2 is a flow chart of a defrosting control method for a device provided in a second embodiment of the present disclosure;

[0019] Figure 3 is a flow chart of a defrosting control method for a device provided in a third embodiment of the present disclosure;

[0020] Figure 4is a flow chart of a defrosting control method for a device provided in a fourth embodiment of the present disclosure;

[0021] Figure 5 is a flow chart of a defrosting control method for a device provided in a fifth embodiment of the present disclosure;

[0022] Figure 6 is an exemplary defrost control flow chart provided by an embodiment of the present disclosure;

[0023] Figure 7 is a structural schematic diagram of a defrost control device for a device provided in an embodiment of the present disclosure;

[0024] Figure 8 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] Some embodiments of the present disclosure will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. Various changes, modifications and equivalents of the methods, devices and / or systems described herein will become apparent after understanding the present disclosure. For example, the order of operations described herein is merely an example and is not limited to those orders set forth herein, but can be changed as becomes apparent after understanding the present disclosure, except for operations that must be performed in a specific order. In addition, for clarity and brevity, descriptions of features known in the art may be omitted.

[0026] The embodiments described in some embodiments of the present disclosure below do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0027] It should be noted that the executor of the defrost control method of the equipment in this embodiment can be the defrost control device of the equipment, which can be configured in any type of electronic equipment, such as air-conditioning equipment, air source heat pump, etc., and is not limited here.

[0028] In the embodiments of the present disclosure, the defrost control method of the device will be described by taking the "defrost control device of the device" as the execution subject, which is hereinafter referred to as "device" and is not limited here. It is noted that the description order of the following embodiments is not used as a limitation on the priority order of the embodiments.

[0029] Figure 1 It is a flow chart of a defrosting control method for a device provided according to the first embodiment of the present disclosure.

[0030] like Figure 1As shown, the method includes:

[0031] Step 101, monitoring the instantaneous energy efficiency ratio of the equipment.

[0032] The device may be any type of cooling device / heating device, such as an air source heat pump, which is not limited here.

[0033] The instantaneous energy efficiency ratio may be the ratio of the cooling (or heating) capacity at any moment to the power consumption at that moment.

[0034] In the embodiment of the present disclosure, the instantaneous energy efficiency ratio may be the ratio of the instantaneous cooling capacity to the instantaneous power consumption, which may be calculated using the following formula:

[0035]

[0036]

[0037] COP 瞬时 =Q 瞬时制冷量 / W 瞬时耗电量

[0038] Among them, Q 瞬时制冷量 Indicates instantaneous cooling capacity, W 瞬时耗电量 Indicates instantaneous power consumption, COP 瞬时 represents the instantaneous energy efficiency ratio, c represents the specific heat capacity, ρ represents the fluid density, L 流量 represents the flow rate, t 进出水温差 Indicates the inlet and outlet water temperature difference, P 电机 Indicates motor power, P 电控 represents the electric control power, and T0 represents a specific time period.

[0039] Optionally, the device can monitor the instantaneous energy efficiency ratio of the device when it is determined that the device is in a frosted state. It is understandable that when the device is in a frosted state, the device can use the instantaneous energy efficiency ratio as a judgment condition for the degree of frosting, such as judging whether the frost layer of the device is relatively thick by the instantaneous energy efficiency ratio.

[0040] Alternatively, the device may also monitor the instantaneous energy efficiency ratio corresponding to the device when the device is in an unfrosted state, which is not limited here. It is understandable that when the device is in an unfrosted state, the device may use the instantaneous energy efficiency ratio as a judgment condition for whether frosting occurs, such as judging whether frosting occurs on the device by the instantaneous energy efficiency ratio.

[0041] Step 102: In response to the instantaneous energy efficiency ratio satisfying a preset condition, a defrosting operation is performed.

[0042] Among them, the preset condition may be a pre-set defrost condition. If the instantaneous energy efficiency ratio meets the preset condition, it means that it is currently the time for defrosting and the defrosting operation can be performed. If the instantaneous energy efficiency ratio does not meet the preset condition, it means that it is not currently the time for defrosting and the defrosting operation may not be performed. It is understandable that the instantaneous energy efficiency ratio can reflect the energy utilization efficiency of the equipment in the current operating state in real time. When the performance of the equipment decreases, the instantaneous energy efficiency ratio will decrease. In equipment such as air source heat pumps, the accumulation of frost layers will lead to reduced heat exchange efficiency, thereby reducing the energy efficiency ratio. For example, under normal circumstances, the instantaneous energy efficiency ratio of an air source heat pump may be in a relatively high range, but as the frost layer gradually thickens, the heat transfer performance of the heat exchanger deteriorates, and the instantaneous energy efficiency ratio will gradually decrease.

[0043] As a possible implementation method, an energy efficiency ratio range can be predetermined. If the currently monitored instantaneous energy efficiency ratio is within the energy efficiency ratio range, it means that the preset condition is met. If the instantaneous energy efficiency ratio exceeds the energy efficiency ratio range, it means that the preset condition is not met, and no limitation is made here. It should be noted that the preset condition can be set according to the actual situation, and the preset conditions set in different scenarios can be the same or different, and no limitation is made here.

[0044] It should be noted that compared with relying solely on a single parameter such as time or temperature to determine the defrost timing, using the instantaneous energy efficiency ratio as a judgment condition is more accurate. The instantaneous energy efficiency ratio comprehensively considers the actual operating status and performance changes of the equipment, and can trigger the defrost operation in time when the frost layer has a significant impact on the performance of the equipment.

[0045] For example, under different ambient temperatures, humidity and operating loads, the speed of frost formation and the degree of impact on equipment performance are different. By monitoring the instantaneous energy efficiency ratio, the defrosting time can be flexibly determined according to the actual situation, unnecessary defrosting operations can be avoided, and the operating efficiency and stability of the equipment can be improved.

[0046] Optionally, the defrosting method may be reverse cycle defrosting, hot gas bypass defrosting, electric heating defrosting, etc., which are not limited here. The device may select a suitable defrosting method according to current actual needs.

[0047] Among them, reverse cycle defrosting is to change the flow direction of the refrigerant so that the evaporator becomes a condenser, and the heat released by the condenser is used to melt the frost layer. Hot gas bypass defrosting is to bypass a part of the high-temperature and high-pressure refrigerant gas to the evaporator and use its heat to melt the frost layer. Electric heating defrosting is to install an electric heater on the evaporator to melt the frost layer.

[0048] It should be noted that when performing the defrosting operation, the defrosting time needs to be controlled to avoid energy waste or equipment damage caused by too long a defrosting time. The device can also monitor parameters such as temperature and pressure during the defrosting process, and stop the defrosting operation in time when the defrosting end conditions are reached. After the defrosting is completed, the device makes appropriate adjustments to the equipment to restore normal operation.

[0049] The disclosed embodiment first monitors the instantaneous energy efficiency ratio corresponding to the device, and then performs a defrost operation in response to the instantaneous energy efficiency ratio meeting a preset condition. Since the instantaneous energy efficiency ratio is the ratio of the cooling capacity of the device to the power consumption at a certain moment, it directly reflects the operating efficiency and performance status of the device at that moment. When the device is frosted, the frost layer will hinder the transfer of heat, resulting in a decrease in the cooling efficiency of the device, and the power consumption may increase. Therefore, by monitoring whether the instantaneous energy efficiency ratio meets the preset conditions, it is possible to indirectly determine whether the device is affected by the frost layer, thereby determining whether a defrost operation needs to be performed. In this way, it is not easy to be misjudged due to the influence of external environmental conditions on the timing of defrosting, making the timing of defrosting more reliable and accurate.

[0050] Figure 2 It is a flow chart of a defrosting control method for a device provided according to the second embodiment of the present disclosure.

[0051] like Figure 2 As shown, the method includes:

[0052] Step 201, determining whether the device is currently frosted.

[0053] Optionally, the thickness or mass of the frost layer may be directly measured by sensors and measuring devices to determine whether defrosting is required.

[0054] Optionally, image recognition technology can also be used to detect the frost layer on the surface of the heat pump unit. For example, the image of the unit surface can be captured in real time by a camera or other device, and an image processing algorithm can be used to determine whether defrosting is required.

[0055] It should be noted that, through experimental analysis, it is known that after the unit is frosted, the fan current will gradually increase. Therefore, when judging whether the equipment is frosted, the fan current can be used as a judgment factor.

[0056] As a possible implementation manner, the apparatus may first monitor the fan current of the device, and then determine a second ratio between the fan current of the device and a reference current.

[0057] The fan current may be the current passing through the fan motor during the operation of the fan. The fan motor is a key component that drives the fan blades to rotate to generate wind flow, and the current is the flow of electrical energy supplied to the fan motor to generate the required torque and power.

[0058] Optionally, the first moment when the instantaneous exhaust volume of the equipment is the highest in the first operating period may be determined first, and then the fan current corresponding to the first moment may be determined as the reference current.

[0059] The first operation period may be a time period during which the heat pump system performs the first defrost operation when it is first operated. The initial operation of the heat pump system refers to the first time the heat pump system is started and starts to operate. For the air source heat pump in the heat pump system, frost may form on the surface of the evaporator when the outdoor temperature is low. In order to maintain the normal operating efficiency of the system, a defrost operation needs to be performed. Performing the first defrost operation refers to the first defrost operation performed by the device when the heat pump is first operated.

[0060] The first moment may be the moment when the instantaneous exhaust volume of the device is the highest during the first operation period. During the operation of the heat pump, the exhaust temperature varies with factors such as load and ambient temperature. The moment when the instantaneous exhaust volume is the highest refers to the moment when the exhaust temperature reaches the highest during the first operation period.

[0061] The reference current may be a fan current reference value obtained by monitoring the fan current in the first operation period.

[0062] For example, if time T1 is the time when the instantaneous exhaust volume of the device is the highest during the first operation period, then time T1 is the first time. The device can use the fan current measured at time T1 as the reference current.

[0063] For example, when it is determined that the reference current is I0 and the fan current currently corresponding to the device is I, the device may use I / I0 as the second ratio.

[0064] Optionally, the device may determine that the equipment is not frosted when the second ratio is less than a second preset threshold, and the device may determine that the equipment is currently frosted when the second ratio is greater than or equal to the second preset threshold.

[0065] The second preset threshold may be a threshold corresponding to the second ratio, and the threshold value may be set based on actual experience.

[0066] It should be noted that if the second ratio is less than the second preset threshold, it means that the fan current has not reached the critical value of the device frosting, so it can be determined that the device is not frosted. If the second ratio is greater than or equal to the second preset threshold, it means that the fan current has reached the critical value of the device frosting, so it can be determined that the device is currently frosted.

[0067] Step 202: When it is determined that the equipment is frosted, the instantaneous energy efficiency ratio of the equipment is monitored.

[0068] It should be noted that when the equipment is in a frosted state, the device can use the instantaneous energy efficiency ratio as a criterion for judging the degree of frosting, for example, judging whether the frost layer of the equipment is relatively thick by the instantaneous energy efficiency ratio.

[0069] The implementation method of the instantaneous energy efficiency ratio corresponding to the monitoring device in step 202 may refer to the above embodiment and will not be described in detail here.

[0070] Step 203: determine a first ratio between the instantaneous energy efficiency ratio corresponding to the device and a reference instantaneous energy efficiency ratio.

[0071] Optionally, the first moment when the instantaneous exhaust volume of the equipment is the highest in the first operating period can be determined first, and then the instantaneous energy efficiency ratio corresponding to the first moment can be determined as the reference instantaneous energy efficiency ratio. In this way, the operator can understand the optimal energy efficiency performance of the unit under specific initial conditions. In the subsequent operation process, the instantaneous energy efficiency ratio at different moments can be compared with the reference instantaneous energy efficiency ratio to judge the energy efficiency change of the unit, and timely discover possible performance degradation problems so as to take corresponding maintenance or adjustment measures.

[0072] The reference instantaneous energy efficiency ratio may be an instantaneous energy efficiency ratio reference value obtained by monitoring the instantaneous energy efficiency ratio in the first operation period.

[0073] For example, if the moment T1 is the moment when the instantaneous exhaust volume of the device in the first operation period is the highest, then the moment T1 is the first moment. The device can use the instantaneous energy efficiency ratio measured at the moment T1 as the reference instantaneous energy efficiency ratio.

[0074] For example, when it is determined that the reference instantaneous energy efficiency ratio is COP0 and the instantaneous energy efficiency ratio currently corresponding to the device is COP, the apparatus may use COP / COP0 as the first ratio.

[0075] Step 204: When the first ratio is less than or equal to the first preset threshold, determine that the instantaneous energy efficiency ratio corresponding to the device meets a preset condition.

[0076] The first preset threshold may be a threshold corresponding to the first ratio, and the threshold may be set based on actual experience. It should be noted that when the first ratio is less than or equal to the first preset threshold, it indicates that the current frost layer is relatively thick and thus needs to be defrosted, and it can be considered that the preset condition is met.

[0077] For example, if the reference instantaneous energy efficiency ratio is 5 and the current instantaneous energy efficiency ratio is 4, the first ratio is 0.8, indicating that the current energy efficiency of the device has decreased by 20% compared with the initial state. For example, the first preset threshold is set to 0.8. When the first ratio is less than or equal to 0.8, it is considered that the device meets the preset condition and needs to perform a defrosting operation.

[0078] Step 205: When the first ratio is greater than the first preset threshold, continue to monitor the instantaneous energy efficiency ratio corresponding to the device.

[0079] It should be noted that when the first ratio is greater than the first preset threshold value and the preset condition is not met, it means that the device may be lightly frosted or not frosted at present.

[0080] It is understandable that performing a defrost operation usually consumes additional energy. Whether it is electric heating defrost, hot gas bypass defrost or other defrost methods, a certain amount of energy is required to melt the frost layer. In the case of light frosting, the energy consumed by defrosting may exceed the energy lost due to frosting, resulting in a decrease in overall energy efficiency. Therefore, when the first ratio is greater than the first preset threshold, it can be considered that the preset condition is not met and the defrost operation does not need to be performed.

[0081] Step 206 , in response to the instantaneous energy efficiency ratio satisfying a preset condition, performing a defrosting operation.

[0082] It should be noted that the specific implementation of steps 205 and 206 can refer to the above embodiment and will not be described in detail here.

[0083] In the disclosed embodiment, firstly, it is determined whether the device is currently frosted, and then, when it is determined that the device is frosted, the instantaneous energy efficiency ratio corresponding to the device is monitored, and then the first ratio between the instantaneous energy efficiency ratio corresponding to the device and the reference instantaneous energy efficiency ratio is determined, and then, when the first ratio is less than or equal to the first preset threshold, it is determined that the instantaneous energy efficiency ratio corresponding to the device meets the preset condition, and then, when the first ratio is greater than the first preset threshold, the instantaneous energy efficiency ratio corresponding to the device is continuously monitored, and finally, in response to the instantaneous energy efficiency ratio meeting the preset condition, the defrosting operation is performed. Thus, by comparing the ratio of the current instantaneous energy efficiency ratio of the device with the reference instantaneous energy efficiency ratio, it is accurately determined whether the device meets the preset condition for defrosting, and it is ensured that the defrosting operation is performed at the appropriate time. By comparing the first ratio with the first preset threshold, it is possible to determine that the defrosting condition is met when the energy efficiency of the device drops to a certain level, avoid defrosting too early or too late, and improve the accuracy and timeliness of the defrosting operation. Avoid fluctuations in device performance caused by excessive accumulation of frost or improper defrosting, so that the device can continuously and stably provide cooling or heating services to users.

[0084] Figure 3 It is a flow chart of a defrost control method for a device provided in accordance with the third embodiment of the present disclosure.

[0085] like Figure 3 As shown, the method includes:

[0086] Step 301, monitoring the exhaust temperature of the equipment.

[0087] It is understandable that during the operation of the equipment, the exhaust temperature is a parameter that reflects its working status. When the equipment is operating normally, the exhaust temperature will be in a relatively stable range. However, when the equipment is frosted, the heat exchange efficiency will be reduced, which will affect the heating or cooling cycle of the equipment, and then cause the exhaust temperature to change. For example, in an air source heat pump, frosting of the evaporator will hinder air circulation, reduce the heat absorbed from the air, and affect the circulation of the refrigerant in the system, resulting in a drop in exhaust temperature. By monitoring the exhaust temperature, such abnormal changes can be discovered in time.

[0088] In the embodiment of the present disclosure, the exhaust temperature of the equipment may be monitored based on a sensor or any measuring device.

[0089] Step 302: Determine the exhaust attenuation coefficient corresponding to the device based on the current exhaust temperature of the device.

[0090] The exhaust attenuation coefficient can be a quantitative indicator of the degree of attenuation of exhaust performance caused by frosting during the operation of the equipment relative to the normal state. The exhaust attenuation coefficient can quantify the change in exhaust temperature and more accurately reflect the impact of frosting on equipment performance.

[0091] Optionally, the difference between a reference temperature corresponding to the device and the current exhaust temperature may be determined first, and then the ratio between the difference and the reference temperature may be determined as the exhaust attenuation coefficient corresponding to the device.

[0092] Optionally, the first moment when the instantaneous exhaust volume of the equipment is the highest in the first operating period may be determined first, and then the exhaust temperature corresponding to the first moment may be determined as the reference temperature.

[0093] The first operation period may be a time period during which the heat pump system performs the first defrost operation when it is first operated. The initial operation of the heat pump system refers to the first time the heat pump system is started and starts to operate. For the air source heat pump in the heat pump system, frost may form on the surface of the evaporator when the outdoor temperature is low. In order to maintain the normal operating efficiency of the system, a defrost operation needs to be performed. Performing the first defrost operation refers to the first defrost operation performed by the device when the heat pump is first operated.

[0094] The first moment may be the moment when the instantaneous exhaust volume of the device is the highest during the first operation period. During the operation of the heat pump, the exhaust temperature varies with factors such as load and ambient temperature. The moment when the instantaneous exhaust volume is the highest refers to the moment when the exhaust temperature reaches the highest during the first operation period.

[0095] The reference temperature may be an exhaust temperature reference value obtained by monitoring the exhaust temperature during the first operation period.

[0096] For example, if time T1 is the time when the instantaneous exhaust volume of the device is the highest during the first operation period, then time T1 is the first time. The device can use the exhaust temperature measured at time T1 as the reference temperature.

[0097] For example, when determining the reference temperature as T P0 , the current exhaust temperature corresponding to the equipment is T P When the device first determines the difference between the current exhaust temperature and the reference temperature T P -T P0 , and then (T P -T P0 ) / T P0 as the exhaust attenuation coefficient.

[0098] Step 303: determine whether the equipment is frosted based on the exhaust attenuation coefficient.

[0099] Optionally, when the exhaust attenuation coefficient is greater than a third preset threshold, it can be determined that the device is currently frosted. Alternatively, when the exhaust attenuation coefficient is less than or equal to the third preset threshold, it can be determined that the device is currently not frosted.

[0100] The third preset threshold may be a threshold of the exhaust attenuation coefficient, and may be a value preset based on actual experience.

[0101] It should be noted that the exhaust attenuation coefficient reflects the degree of attenuation of the exhaust performance of the equipment due to factors such as frost relative to the normal state. When the exhaust attenuation coefficient exceeds the third preset threshold, it means that the exhaust performance of the equipment has been attenuated to a more serious extent, which is likely due to frost affecting the heat exchange efficiency, etc., resulting in a decrease in exhaust temperature.

[0102] For example, assuming that the exhaust performance of the equipment is in a stable state under normal circumstances, the exhaust attenuation coefficient is 0. As the equipment runs, if frosting occurs, the exhaust attenuation coefficient gradually increases. When this coefficient exceeds the third preset threshold, for example, reaching 0.2, it can be determined that the equipment is currently frosted. This means that the operating state of the equipment has changed significantly, and measures such as defrosting need to be taken to restore the normal performance of the equipment.

[0103] If the exhaust attenuation coefficient does not reach a certain severity, it means that the exhaust performance of the equipment is still fluctuating within a relatively normal range. For example, if the exhaust attenuation coefficient is 0.1, and the third preset threshold is set to 0.15, at this time, since the exhaust attenuation coefficient is less than the third preset threshold, it can be considered that the equipment is not currently frosted, the equipment is operating normally, and no defrosting operation is required. The equipment can continue to be monitored to ensure that timely measures can be taken when the equipment shows signs of frosting.

[0104] Step 304: When it is determined that the equipment is frosted, monitor the instantaneous energy efficiency ratio corresponding to the equipment.

[0105] Step 305: In response to the instantaneous energy efficiency ratio satisfying a preset condition, a defrosting operation is performed.

[0106] It should be noted that the specific implementation of steps 304 and 305 can refer to the above embodiment and will not be described in detail here.

[0107] In the disclosed embodiment, the exhaust temperature of the device is first monitored, and then the exhaust attenuation coefficient corresponding to the device is determined based on the current exhaust temperature of the device. Then, based on the exhaust attenuation coefficient, it is determined whether the device is frosted. Then, when it is determined that the device is frosted, the instantaneous energy efficiency ratio corresponding to the device is monitored. Finally, in response to the instantaneous energy efficiency ratio meeting the preset conditions, the defrost operation is performed. Thus, by determining whether the device is frosted by monitoring the exhaust temperature and the exhaust attenuation coefficient, it is possible to comprehensively consider the changes in the operating state of the device and improve the accuracy of the frosting judgment. After determining that the device is frosted, the instantaneous energy efficiency ratio is monitored, and the defrost operation is performed when the preset conditions are met. This can ensure that defrosting is performed when the performance of the device is greatly affected by the frost layer, avoid defrosting too early or too late, improve the efficiency of defrosting and energy utilization efficiency, and keep the device in a good operating state at all times.

[0108] Figure 4 It is a flow chart of a defrost control method for a device provided according to the fourth embodiment of the present disclosure.

[0109] like Figure 4 As shown, the method includes:

[0110] Step 401, monitor the fan current and exhaust temperature of the equipment.

[0111] It is understandable that during the operation of the equipment, the exhaust temperature is a parameter that reflects its working status. When the equipment is operating normally, the exhaust temperature will be in a relatively stable range. However, when the equipment is frosted, the heat exchange efficiency will be reduced, which will affect the heating or refrigeration cycle of the equipment, and then cause the exhaust temperature to change. For example, in an air source heat pump, frosting of the evaporator will hinder air circulation, reduce the heat absorbed from the air, and affect the circulation of the refrigerant in the system, resulting in a drop in exhaust temperature. By monitoring the exhaust temperature, this abnormal change can be discovered in time. After the unit is frosted, the fan current will gradually increase. Therefore, when judging whether the equipment is frosted, the fan current can be used as a judgment factor.

[0112] Therefore, in the embodiment of the present disclosure, the fan current and exhaust temperature of the equipment can be monitored, and then it can be determined whether the equipment is frosted based on these two judgment factors.

[0113] In the embodiment of the present disclosure, the exhaust temperature and fan current of the equipment may be monitored based on a sensor or any measuring device.

[0114] Step 402, determining a second ratio between the current wind turbine current and the reference current.

[0115] Step 403: When the second ratio is less than a second preset threshold, it is determined that the device is not currently frosted.

[0116] It should be noted that the specific implementation of steps 402 and 403 may refer to the above embodiments and will not be described in detail here.

[0117] Step 404, when the second ratio is greater than or equal to the second preset threshold, determine the exhaust attenuation coefficient corresponding to the device based on the current exhaust temperature of the device.

[0118] It is understandable that as the equipment frosts, its heat exchange efficiency will gradually decrease, which will cause the exhaust temperature to drop. Therefore, the change in exhaust temperature can reflect the degree of frost on the equipment. It should be noted that when the second ratio (the ratio between the current fan current and the reference current) is greater than or equal to the second preset threshold, it indicates that the equipment may have a certain degree of abnormality. At this time, the exhaust attenuation coefficient is determined based on the current exhaust temperature of the equipment.

[0119] The exhaust attenuation coefficient can be a quantitative indicator of the degree of attenuation of exhaust performance caused by frosting during the operation of the equipment relative to the normal state. The exhaust attenuation coefficient can quantify the change in exhaust temperature and more accurately reflect the impact of frosting on equipment performance.

[0120] Optionally, the difference between a reference temperature corresponding to the device and the current exhaust temperature may be determined first, and then the ratio between the difference and the reference temperature may be determined as the exhaust attenuation coefficient corresponding to the device.

[0121] Step 405, judging whether the equipment is frosted based on the exhaust attenuation coefficient.

[0122] Step 406: When it is determined that the equipment is frosted, the instantaneous energy efficiency ratio of the equipment is monitored.

[0123] Step 407 , in response to the instantaneous energy efficiency ratio satisfying a preset condition, performing a defrosting operation.

[0124] It should be noted that the specific implementation of steps 405-407 can refer to the above embodiment and will not be described in detail here.

[0125] In the disclosed embodiment, the fan current and exhaust temperature of the device are first monitored, and then the second ratio between the current fan current and the reference current is determined. Then, when the second ratio is less than the second preset threshold, it is determined that the device is not currently frosted. Then, when the second ratio is greater than or equal to the second preset threshold, the exhaust attenuation coefficient corresponding to the device is determined based on the current exhaust temperature of the device. Then, based on the exhaust attenuation coefficient, it is determined whether the device is frosted. Then, when it is determined that the device is frosted, the instantaneous energy efficiency ratio corresponding to the device is monitored. Finally, in response to the instantaneous energy efficiency ratio meeting the preset conditions, a defrost operation is performed. Thus, by monitoring the two key parameters of the fan current and the exhaust temperature, the operating status of the device can be evaluated from different angles. By comprehensively considering these two parameters, it is possible to more accurately determine whether the device is frosted, avoiding the limitations of a single parameter judgment. By accurately judging the frosting condition of the device and performing the defrosting operation in a timely manner, damage to the device caused by frosting can be avoided.

[0126] Figure 5 It is a flow chart of a defrost control method for a device provided according to the fifth embodiment of the present disclosure.

[0127] like Figure 5 As shown, the method includes:

[0128] Step 501, monitor the fan current and exhaust temperature of the equipment.

[0129] Step 502: Determine the exhaust attenuation coefficient corresponding to the device based on the current exhaust temperature of the device.

[0130] Step 503: When the exhaust attenuation coefficient is less than or equal to the third preset threshold, it is determined that the equipment is not currently frosted.

[0131] It should be noted that the specific implementation of steps 501-503 can refer to the above embodiment and will not be described in detail here.

[0132] Step 504: When the exhaust attenuation coefficient is greater than the third preset threshold, determine whether the device is frosted based on the current fan current of the device.

[0133] Specifically, when the exhaust attenuation coefficient is greater than the third preset threshold, it indicates that the device may be at risk of frosting. At this time, whether the device is frosted can be further determined based on the current fan current of the device.

[0134] It should be noted that as the degree of frosting increases, the resistance of the system will increase. When the fan overcomes this resistance, its current will change accordingly. Generally speaking, the more severe the frosting, the greater the resistance the fan needs to overcome, and the fan current will increase accordingly. Although the exhaust attenuation coefficient can reflect the frosting situation to a certain extent, there may be uncertainty or interference from other factors. The accuracy and reliability of the judgment can be increased through the fan current.

[0135] It should be noted that the specific implementation method of determining whether the device is frosted based on the current fan current of the device can refer to the above step 201, which will not be described in detail here.

[0136] Step 505: When it is determined that the equipment is frosted, the instantaneous energy efficiency ratio of the equipment is monitored.

[0137] Step 506 , in response to the instantaneous energy efficiency ratio satisfying a preset condition, performing a defrosting operation.

[0138] It should be noted that the specific implementation of steps 505 and 506 can refer to the above embodiment and will not be described in detail here.

[0139] In the disclosed embodiment, the fan current and exhaust temperature of the device are first monitored, and then the exhaust attenuation coefficient corresponding to the device is determined based on the current exhaust temperature of the device. Then, when the exhaust attenuation coefficient is less than or equal to the third preset threshold, it is determined that the device is not currently frosted. Then, when the exhaust attenuation coefficient is greater than the third preset threshold, it is determined whether the device is frosted based on the current fan current of the device. Then, when it is determined that the device is frosted, the instantaneous energy efficiency ratio corresponding to the device is monitored. Finally, in response to the instantaneous energy efficiency ratio meeting the preset conditions, the defrosting operation is performed. Thus, the exhaust attenuation coefficient is first determined based on the exhaust temperature, and when the exhaust attenuation coefficient is less than or equal to the third preset threshold, it is determined that the device is not frosted. When it is greater than the third preset threshold, it is further determined whether the device is frosted based on the fan current. This staged judgment method can gradually narrow the judgment range and perform more detailed analysis. Judging according to the characteristics of different parameters at different stages can more accurately capture the signs of frosting and improve the accuracy of frosting judgment.

[0140] Figure 6 An exemplary defrost control process of the equipment is proposed. Figure 6 As shown, when the heat pump unit is running, the first defrost cycle is executed. During the period of free operation of the unit (the first operating period), the instantaneous COP (Coefficient of Performance) reference value can be calculated, and the fan current I and exhaust temperature T can be recorded simultaneously. p At the highest exhaust moment (the first moment), the unit can calculate the instantaneous COP0, fan current I0, exhaust temperature TP0 The reference instantaneous energy efficiency ratio, reference current, and reference temperature are recorded. The unit continuously records the fan current I and compares it with the reference current I0 to determine whether there is a possibility of frosting. If I / I0 is greater than the preset threshold B (the second preset threshold), it is determined that the unit has a possibility of frosting. Furthermore, the exhaust temperature T of the unit at this moment can be recorded. P , and calculate the exhaust attenuation coefficient (T P -T P0 ) / T P0 , if (T P -T P0 ) / T P0 If the COP / COP0 is greater than the preset threshold C (the third preset threshold), it can be determined that the unit is frosted. Furthermore, the instantaneous COP value can be calculated and compared with COP0 to determine whether it is the optimal time point for defrosting. If COP / COP0 is greater than or equal to the preset threshold E (the first preset threshold), it is determined to be light frosting, and then the COP is continued to be monitored. Otherwise, it is determined that the frost layer of the unit is thick, which affects the heating operation of the unit, and the unit can perform a defrosting operation.

[0141] In order to better implement the defrost control method of the device disclosed in the present invention, the present invention also provides a defrost control device for a device based on the defrost control method of the device. The meanings of the terms are the same as those in the defrost control method of the device, and the specific implementation details can refer to the description in the method embodiment.

[0142] See also Figure 7 , Figure 7 : is a structural schematic diagram of a defrost control device of a device provided in an embodiment of the present disclosure, wherein the defrost control device 700 of the device comprises:

[0143] A monitoring module 710, used to monitor the instantaneous energy efficiency ratio corresponding to the device;

[0144] The execution module 720 is used to execute a defrosting operation in response to the instantaneous energy efficiency ratio corresponding to the device meeting a preset condition.

[0145] Optionally, the monitoring module includes:

[0146] A judgment unit, used to judge whether the equipment is currently frosted;

[0147] The first monitoring unit is used to monitor the instantaneous energy efficiency ratio corresponding to the equipment when it is determined that the equipment is frosted.

[0148] Optionally, the monitoring unit further includes:

[0149] a first determining subunit, configured to determine a first ratio between an instantaneous energy efficiency ratio corresponding to the device and a reference instantaneous energy efficiency ratio;

[0150] A second determining subunit is used to determine that the instantaneous energy efficiency ratio corresponding to the device meets the preset condition when the first ratio is less than or equal to a first preset threshold;

[0151] The second monitoring unit is used to continue monitoring the instantaneous energy efficiency ratio corresponding to the device when the first ratio is greater than the first preset threshold.

[0152] Optionally, the first determining subunit is further used to:

[0153] Determining a first moment in the first operating period when the instantaneous exhaust volume of the device is the highest;

[0154] The instantaneous energy efficiency ratio corresponding to the first moment is determined as the reference instantaneous energy efficiency ratio.

[0155] Optionally, the judging unit includes:

[0156] A first monitoring subunit, used to monitor the fan current of the device;

[0157] a third determination subunit, configured to determine a second ratio between a fan current of the device and a reference current;

[0158] a fourth determining subunit, configured to determine that the device is not frosted when the second ratio is less than a second preset threshold;

[0159] The fifth determining subunit is used to determine that the device is currently frosted when the second ratio is greater than or equal to a second preset threshold.

[0160] Optionally, the third determining subunit is further used to:

[0161] Determining a first moment in the first operating period when the instantaneous exhaust volume of the device is the highest;

[0162] The wind turbine current corresponding to the first moment is determined as the reference current.

[0163] Optionally, the judging unit includes:

[0164] a second monitoring subunit, for monitoring the exhaust temperature of the device;

[0165] a sixth determining subunit, configured to determine an exhaust attenuation coefficient corresponding to the device based on a current exhaust temperature of the device;

[0166] The first judgment subunit is used to judge whether the equipment is frosted based on the exhaust attenuation coefficient.

[0167] Optionally, the sixth determining subunit is specifically configured to:

[0168] determining a difference between a reference temperature corresponding to the device and a current exhaust temperature;

[0169] The ratio between the difference and the reference temperature is determined as the exhaust attenuation coefficient corresponding to the device.

[0170] Optionally, the sixth determining subunit is further used to:

[0171] Determining a first moment in the first operating period when the instantaneous exhaust volume of the device is the highest;

[0172] The exhaust temperature corresponding to the first moment is determined as the reference temperature.

[0173] Optionally, the first judgment subunit is specifically used to:

[0174] When the exhaust attenuation coefficient is greater than a third preset threshold, determining that the device is currently frosted;

[0175] Alternatively, when the exhaust attenuation coefficient is less than or equal to the third preset threshold, it is determined that the device is not currently frosted.

[0176] Optionally, the judging unit is specifically configured to:

[0177] monitoring fan current and exhaust temperature of the equipment;

[0178] determining a second ratio between the current fan current and the reference current;

[0179] When the second ratio is less than a second preset threshold, determining that the device is not currently frosted;

[0180] When the second ratio is greater than or equal to the second preset threshold, determining an exhaust attenuation coefficient corresponding to the device based on a current exhaust temperature of the device;

[0181] Based on the exhaust attenuation coefficient, it is determined whether the equipment is frosted.

[0182] Optionally, the judging unit is specifically configured to:

[0183] monitoring fan current and exhaust temperature of the equipment;

[0184] Determining an exhaust attenuation coefficient corresponding to the device based on a current exhaust temperature of the device;

[0185] When the exhaust attenuation coefficient is less than or equal to the third preset threshold, determining that the device is not currently frosted;

[0186] When the exhaust attenuation coefficient is greater than a third preset threshold, it is determined whether the device is frosted based on the current fan current of the device.

[0187] The disclosed embodiment first monitors the instantaneous energy efficiency ratio corresponding to the device, and then performs a defrost operation in response to the instantaneous energy efficiency ratio meeting a preset condition. Since the instantaneous energy efficiency ratio is the ratio of the cooling capacity of the device to the power consumption at a certain moment, it directly reflects the operating efficiency and performance status of the device at that moment. When the device is frosted, the frost layer will hinder the transfer of heat, resulting in a decrease in the cooling efficiency of the device, and the power consumption may increase. Therefore, by monitoring whether the instantaneous energy efficiency ratio meets the preset conditions, it is possible to indirectly determine whether the device is affected by the frost layer, thereby determining whether a defrost operation needs to be performed. In this way, it is not easy to be misjudged due to the influence of external environmental conditions on the timing of defrosting, making the timing of defrosting more reliable and accurate.

[0188] In addition, the present disclosure also provides an electronic device, such as Figure 8 As shown, it shows a schematic diagram of the structure of the electronic device involved in the present disclosure, specifically:

[0189] The electronic device may include components such as a processor 801 with one or more processing cores, a memory 802 with one or more computer-readable storage media, a power supply 803, and an input unit 804. Those skilled in the art will appreciate that Figure 8 The electronic device structure shown in the figure does not constitute a limitation on the electronic device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0190] The processor 801 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 802 and calling data stored in the memory 802, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. Optionally, the processor 801 may include one or more processing cores; preferably, the processor 801 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 801.

[0191] The memory 802 can be used to store software programs and modules. The processor 801 executes various functional applications and data processing by running the software programs and modules stored in the memory 802. The memory 802 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 802 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 802 may also include a memory controller to provide the processor 801 with access to the memory 802.

[0192] The electronic device also includes a power supply 803 for supplying power to each component. Preferably, the power supply 803 can be logically connected to the processor 801 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. The power supply 803 can also include any components such as one or more DC or AC power supplies, recharging systems, power supply device debugging circuits, power converters or inverters, and power status indicators.

[0193] The electronic device may further include an input unit 804, which may be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.

[0194] Although not shown, the electronic device may further include a display unit, etc., which will not be described in detail herein. Specifically in this embodiment, the processor 801 in the electronic device will load the executable files corresponding to the processes of one or more application programs into the memory 802 according to the following instructions, and the processor 801 will run the application programs stored in the memory 802, thereby implementing the steps in the defrost control method of any device provided in the embodiments of the present disclosure.

[0195] The disclosed embodiment first monitors the instantaneous energy efficiency ratio corresponding to the device, and then performs a defrost operation in response to the instantaneous energy efficiency ratio meeting a preset condition. Since the instantaneous energy efficiency ratio is the ratio of the cooling capacity of the device to the power consumption at a certain moment, it directly reflects the operating efficiency and performance status of the device at that moment. When the device is frosted, the frost layer will hinder the transfer of heat, resulting in a decrease in the cooling efficiency of the device, and the power consumption may increase. Therefore, by monitoring whether the instantaneous energy efficiency ratio meets the preset conditions, it is possible to indirectly determine whether the device is affected by the frost layer, thereby determining whether a defrost operation needs to be performed. In this way, it is not easy to be misjudged due to the influence of external environmental conditions on the timing of defrosting, making the timing of defrosting more reliable and accurate.

[0196] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0197] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0198] To this end, the present disclosure provides a computer-readable storage medium having a computer program stored thereon. The computer program can be loaded by a processor to execute the steps in the defrost control method of any device provided by the present disclosure.

[0199] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0200] The computer-readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0201] Since the instructions stored in the computer-readable storage medium can execute the steps in the defrost control method of any device provided in the present disclosure, the beneficial effects that can be achieved by the defrost control method of any device provided in the present disclosure can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0202] The defrost control method, device, electronic device and computer-readable storage medium of a device provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A defrosting control method for equipment, characterized in that: include: The instantaneous energy efficiency ratio corresponding to the monitoring equipment; In response to the instantaneous energy efficiency ratio satisfying a preset condition, a defrosting operation is performed.

2. The method according to claim 1, characterized in that The instantaneous energy efficiency ratio corresponding to the monitoring device includes: Determine whether the equipment is currently frosted; When it is determined that the equipment is frosted, the instantaneous energy efficiency ratio corresponding to the equipment is monitored.

3. The method according to claim 1, characterized in that: After monitoring the instantaneous energy efficiency ratio corresponding to the device, the method further includes: Determine a first ratio between an instantaneous energy efficiency ratio corresponding to the device and a reference instantaneous energy efficiency ratio; When the first ratio is less than or equal to a first preset threshold, determining that the instantaneous energy efficiency ratio corresponding to the device meets the preset condition; When the first ratio is greater than the first preset threshold, continue to monitor the instantaneous energy efficiency ratio corresponding to the device.

4. The method according to claim 3, characterized in that Before determining a first ratio between the instantaneous energy efficiency ratio corresponding to the device and a reference instantaneous energy efficiency ratio, the method further includes: Determining a first moment in the first operating period when the instantaneous exhaust volume of the device is the highest; The instantaneous energy efficiency ratio corresponding to the first moment is determined as the reference instantaneous energy efficiency ratio.

5. The method according to claim 2, characterized in that: The determining whether the device is currently frosted comprises: Monitoring fan current of the device; determining a second ratio between a fan current of the device and a reference current; When the second ratio is less than a second preset threshold, determining that the device is not frosted; When the second ratio is greater than or equal to a second preset threshold, it is determined that the device is currently frosted.

6. The method according to claim 5, characterized in that Before determining the second ratio between the fan current of the device and the reference current, the method further includes: Determining a first moment in the first operating period when the instantaneous exhaust volume of the device is the highest; The wind turbine current corresponding to the first moment is determined as the reference current.

7. The method according to claim 2, characterized in that The determining whether the device is currently frosted comprises: monitoring the exhaust temperature of the equipment; Determining an exhaust attenuation coefficient corresponding to the device based on a current exhaust temperature of the device; Based on the exhaust attenuation coefficient, it is determined whether the equipment is frosted.

8. The method according to claim 7, characterized in that The determining, based on the current exhaust temperature of the device, the exhaust attenuation coefficient corresponding to the device comprises: determining a difference between a reference temperature corresponding to the device and a current exhaust temperature; The ratio between the difference and the reference temperature is determined as the exhaust attenuation coefficient corresponding to the device.

9. The method according to claim 8, characterized in that Before determining the difference between the reference temperature corresponding to the device and the current exhaust temperature, the method further includes: Determining a first moment in the first operating period when the instantaneous exhaust volume of the device is the highest; The exhaust temperature corresponding to the first moment is determined as the reference temperature.

10. The method according to claim 8, characterized in that The determining whether the equipment is frosted based on the exhaust attenuation coefficient includes: When the exhaust attenuation coefficient is greater than a third preset threshold, determining that the device is currently frosted; Alternatively, when the exhaust attenuation coefficient is less than or equal to the third preset threshold, it is determined that the device is not currently frosted.

11. The method according to claim 2, characterized in that The determining whether the device is currently frosted comprises: monitoring fan current and exhaust temperature of the equipment; determining a second ratio between the current fan current and the reference current; When the second ratio is less than a second preset threshold, determining that the device is not currently frosted; When the second ratio is greater than or equal to the second preset threshold, determining an exhaust attenuation coefficient corresponding to the device based on a current exhaust temperature of the device; Based on the exhaust attenuation coefficient, it is determined whether the equipment is frosted.

12. The method according to claim 2, characterized in that: The determining whether the device is currently frosted comprises: monitoring fan current and exhaust temperature of the equipment; Determining an exhaust attenuation coefficient corresponding to the device based on a current exhaust temperature of the device; When the exhaust attenuation coefficient is less than or equal to the third preset threshold, determining that the device is not currently frosted; When the exhaust attenuation coefficient is greater than a third preset threshold, it is determined whether the device is frosted based on the current fan current of the device.

13. A defrost control device for equipment, characterized in that: include: A monitoring module is used to monitor the instantaneous energy efficiency ratio of the equipment; The execution module is used to execute a defrosting operation in response to the instantaneous energy efficiency ratio corresponding to the device meeting a preset condition.

14. An electronic device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in the method according to any one of claims 1 to 12 when executing the computer program.

15. 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 steps in the method according to any one of claims 1 to 12 are implemented.

Images