Control method and device of a heating machine, electronic equipment and storage medium

Abstract

Embodiments of the present application disclose a kind of control method, device, electronic equipment and storage medium of heating machine, by controlling the compressor of heating machine starts, acquisition outdoor temperature and the water temperature of heating machine, according to outdoor temperature, determine target frequency level, and according to outdoor temperature and the water temperature of heating machine determine the initial target operating frequency of compressor, according to the liquid level height value in the oil separator of compressor, determine target operating duration, control compressor to target frequency level runs target operating duration, control compressor according to initial target operating frequency runs;The present application is in the target operating duration after compressor runs at target frequency level, control compressor according to initial target operating frequency runs, so as to improve the reliability of compressor start operation in low temperature environment, avoid poor oil return effect of compressor in low temperature environment, so as to cause the compressor loss of directly running according to initial target operating frequency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating machines, in particular to a control method and device of a heating machine, an electronic device and a storage medium. BACKGROUND

[0002] The variable frequency heating machine adds a frequency converter to the structure of the conventional heating machine. The rotation speed of the compressor directly affects the use efficiency of the heating machine. The frequency converter is used to control and adjust the rotation speed of the compressor, so that it is always in the best rotation speed state, thereby improving the energy efficiency ratio.

[0003] The existing heating machine is easily affected by the ambient temperature when running in the low-temperature refrigeration mode. For example, when the external environment temperature is too high or too low, the oil return effect of the compressor is poor, thereby affecting the lubrication effect of the compressor and further affecting the service life of the compressor. SUMMARY

[0004] The embodiments of the present application provide a control method and device of a heating machine, an electronic device and a storage medium to improve the compressor loss problem caused by the start of the existing heating machine in a low-temperature environment.

[0005] In one aspect, the present application provides a control method of a heating machine, the method comprising:

[0006] controlling the start of the compressor of the heating machine, collecting the outdoor temperature and the water inlet temperature of the heating machine;

[0007] determining a target frequency level according to the outdoor temperature, and determining an initial target operating frequency of the compressor according to the outdoor temperature and the water inlet temperature of the heating machine;

[0008] determining a target operating time according to the liquid level value in the oil separator of the compressor, controlling the compressor to operate at the target frequency level for the target operating time, and then controlling the compressor to operate at the initial target operating frequency.

[0009] In another aspect, the present application provides a control device of a heating machine, the device comprising:

[0010] a temperature collection module configured to control the start of the compressor of the heating machine, collect the outdoor temperature and the water inlet temperature of the heating machine;

[0011] a frequency determination module configured to determine a target frequency level according to the outdoor temperature, and determine an initial target operating frequency of the compressor according to the outdoor temperature and the water inlet temperature of the heating machine;

[0012] The starting control module is configured to determine a target running time length according to the liquid level value in the oil separator of the compressor, and control the compressor to run at the initial target running frequency after the compressor runs at the target frequency level for the target running time length.

[0013] In another aspect, an electronic device is provided, including a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program in the memory to perform the operations in the control method of the heating machine.

[0014] In another aspect, a storage medium is provided, which stores a plurality of instructions. The instructions are adapted to be loaded by a processor to perform the steps in the control method of the heating machine.

[0015] The embodiments of the present application provide a control method and device of a heating machine, an electronic device and a storage medium. The compressor of the heating machine is started, the outdoor temperature and the water inlet temperature of the heating machine are collected, the target frequency level is determined according to the outdoor temperature, the initial target running frequency of the compressor is determined according to the outdoor temperature and the water inlet temperature of the heating machine, the target running time length is determined according to the liquid level value in the oil separator of the compressor, and the compressor is controlled to run at the target frequency level for the target running time length, and then the compressor is controlled to run at the initial target running frequency. In the embodiments of the present application, the target frequency level is determined according to the outdoor temperature when the compressor is started, the target running time length is determined according to the liquid level value in the oil separator of the compressor, and the compressor is controlled to run at the initial target running frequency after the compressor runs at the target frequency level for the target running time length. Thus, the reliability of the compressor in a low-temperature environment is improved, and the poor oil return effect of the compressor in a low-temperature environment is avoided, so that the compressor is not directly run at the initial target running frequency, and the compressor loss is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0017] Figure 1 is a flowchart of the control method of the heating machine provided by the embodiments of the present application;

[0018] Figure 2 is a flowchart of the starting control method of the compressor provided by the embodiments of the present application;

[0019] Figure 3is a schematic diagram of compressor start frequency operation provided by an embodiment of the present application;

[0020] Figure 4 is a flowchart of a method for adjusting the operating frequency of a compressor provided by an embodiment of the present application;

[0021] Figure 5 is a flowchart of a method for determining a target frequency change value based on a temperature difference provided by an embodiment of the present application;

[0022] Figure 6 is a structural schematic diagram of a control device of a heating machine provided by an embodiment of the present application;

[0023] Figure 7 is a structural schematic diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0024] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the inventive aspects to those skilled in the art. Like reference numerals may refer to like elements throughout.

[0025] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the

[0026] The block diagrams in the drawings show only the functionality of the embodiments and do not imply any particular physical or architectural arrangement of the devices, systems, or methods. No inference should be drawn regarding the implementational aspects of the embodiments from the description of the features or structural elements of the drawings. Further, any described feature, structure, or element can be combined in any suitable manner in one or more embodiments.

[0027] The flow diagrams depicted in the drawings show the functionality of the embodiments and do not imply any particular physical or architectural arrangement of the devices, systems, or methods. No inference should be drawn regarding the implementational aspects of the embodiments as shown in the drawings from the description of the flow diagrams. Further, any described feature, structure, or element can be combined in any suitable manner in one or more embodiments.

[0028] It should be noted that "multiple" in this article refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0029] To facilitate understanding of the technical solutions provided in the embodiments of this application, the control method, device, heater, and storage medium of the heating machine provided in the embodiments of this application will be described below in conjunction with application scenarios.

[0030] like Figure 1 As shown, Figure 1 This is a flowchart illustrating the control method for a heating machine provided in an embodiment of this application. The control method shown can be applied to a heating machine or to electronic devices with data processing capabilities, such as mobile terminals or computer equipment. This embodiment of the application does not limit the scope of the application.

[0031] Specifically, Figure 1 The control method for the heating unit shown includes steps 210 to 230, which are described in detail below:

[0032] Step 210: Control the compressor of the heating unit to start, and collect the outdoor temperature and the inlet water temperature of the heating unit.

[0033] In existing heating system controls, the compressor's operating frequency is typically adjusted based on outdoor temperature. This results in inconsistent compressor operation, leading to excessively high or low outlet water temperatures. Consequently, the indoor temperature fails to reach the user's preset target temperature quickly, increasing energy consumption and requiring prolonged compressor operation, thus increasing compressor wear. Therefore, to reduce energy consumption, extend compressor lifespan, and ensure adequate indoor heating, this embodiment collects outdoor and inlet water temperatures after compressor startup and controls the compressor's operating frequency based on these temperatures.

[0034] In some implementations, the compressor of the heating unit can be started for the first time, that is, the heating unit responds to the start command and controls the compressor to start.

[0035] In some embodiments, the compressor start of the heating machine can be a non-first start, that is, the indoor temperature is collected, when the temperature difference between the indoor temperature and the target temperature preset by the user is greater than a first preset temperature difference threshold, the compressor is controlled to start, when the indoor temperature reaches the target temperature preset by the user, or the temperature difference between the indoor temperature and the target temperature preset by the user is less than or equal to a second preset temperature difference threshold, the compressor is controlled to stop, thereby realizing energy saving of the heating machine. Wherein, the first preset temperature difference threshold is greater than the second preset temperature difference threshold.

[0036] In some embodiments, the outdoor temperature can be an outdoor average temperature, or can be an instantaneous temperature of the outdoor when the heating machine issues a compressor start instruction.

[0037] Optionally, an outdoor temperature sensor can be arranged in the heating machine, and the outdoor temperature is collected by the outdoor temperature sensor.

[0038] Optionally, the heating machine can receive an outdoor temperature sent by a terminal device in communication connection with the heating machine. Wherein, the terminal device can be a mobile phone, a tablet, a smart wearable device, a smart home appliance, etc.

[0039] In some embodiments, the water temperature of the heating machine can be an average temperature of the water inlet of the heating machine in a period of time, or can be an instantaneous temperature of the water inlet of the heating machine when the heating machine issues a compressor start instruction.

[0040] Optionally, a temperature sensor can be arranged at the water inlet of the heating machine, and the water temperature of the heating machine is collected by the temperature sensor.

[0041] Step 220, according to the outdoor temperature, determine the target frequency level, and according to the outdoor temperature and the water temperature of the heating machine, determine the initial target running frequency of the compressor.

[0042] Considering that in a low temperature environment, the compressor runs out of oil, if the compressor is directly controlled to run at the initial target running frequency, it may cause wear and tear of the compressor. Based on this, in order to reduce the wear and tear of the compressor, in some embodiments, after starting the compressor, according to the outdoor temperature, determine the target frequency level, control the compressor to run at the running frequency corresponding to the target frequency level for a period of time, and then control the compressor to run at the initial target running frequency, in this way, the poor oil return effect of the compressor in a low temperature environment can be alleviated, thereby affecting the lubrication effect of the compressor, and further affecting the service life of the compressor.

[0043] Wherein, the target frequency level is used to indicate the level of the frequency at which the compressor starts to run.

[0044] It can be understood that the heating machine is provided with a plurality of frequency levels, and each frequency level corresponds to a different operating frequency. For example, the heating machine can be provided with a first preset frequency level, a second preset frequency level, a third preset frequency level, a fourth preset frequency level and a fifth preset frequency level.

[0045] Optionally, the operating frequency corresponding to each of the first preset frequency level, the second preset frequency level, the third preset frequency level, the fourth preset frequency level and the fifth preset frequency level is increasing; optionally, the operating frequency corresponding to each of the first preset frequency level, the second preset frequency level, the third preset frequency level, the fourth preset frequency level and the fifth preset frequency level is decreasing; optionally, the operating frequency corresponding to the first preset frequency level is greater than the operating frequency corresponding to the second preset frequency level, the operating frequency corresponding to each of the third preset frequency level, the fourth preset frequency level and the fifth preset frequency level is increasing, and the operating frequency corresponding to each of the third preset frequency level, the fourth preset frequency level and the fifth preset frequency level is greater than the operating frequency corresponding to the first preset frequency level.

[0046] In some embodiments, the target frequency level can be determined according to the outdoor temperature and a preset mapping relationship between temperature and frequency level.

[0047] Optionally, the preset mapping relationship between temperature and frequency level can be preset mapping data between temperature and frequency level, which includes a plurality of temperature ranges and the frequency level corresponding to each temperature range.

[0048] In some embodiments, the outdoor temperature and the water inlet temperature of the heating machine can be input into a preset frequency prediction model to predict the operating frequency, so as to obtain the initial target operating frequency of the compressor.

[0049] The preset frequency prediction model can be a prediction model based on machine learning or a prediction model based on neural network.

[0050] In some embodiments, the target temperature and frequency mapping data corresponding to the outdoor temperature can be obtained by querying the preset mapping data according to the outdoor temperature, and the initial target operating frequency of the compressor can be obtained by querying the temperature and frequency mapping data according to the water inlet temperature of the heating machine.

[0051] The preset mapping data includes a plurality of outdoor temperature ranges and temperature and frequency mapping data corresponding to each outdoor temperature range; the temperature and frequency mapping data includes a plurality of water inlet temperature ranges and operating frequency corresponding to each water inlet temperature range.

[0052] In some embodiments, the initial target operating frequency of the compressor can be obtained by querying the preset temperature mapping data according to the outdoor temperature and the water inlet temperature of the heating machine.

[0053] The preset temperature mapping data includes multiple operating frequencies, and an inlet water temperature range and an outdoor temperature range corresponding to each operating frequency.

[0054] For example, when the inlet water temperature is less than 9℃ and the outdoor temperature is less than -20℃, the initial target operating frequency of the compressor is determined to be 78Hz.

[0055] In step 230, the target operating duration is determined according to the liquid level value in the oil separator of the compressor. After the compressor is controlled to operate at the target frequency level for the target operating duration, the compressor is controlled to operate at the initial target operating frequency.

[0056] In some embodiments, in order to ensure the safety of the oil level and reduce the wear of the compressor, after the target operating duration is determined according to the liquid level value in the oil separator of the compressor, the compressor is controlled to operate at the initial target operating frequency after the compressor is controlled to operate at the target frequency level for the target operating duration.

[0057] Optionally, the target operating duration can be determined according to the liquid level value and a preset mapping relationship between the liquid level and the operating duration.

[0058] The preset mapping relationship between the liquid level and the operating duration is used to indicate the mapping relationship between the liquid level value in the oil separator of the compressor and the corresponding operating duration.

[0059] Optionally, the liquid level value can be compared with a first preset height threshold. If the liquid level value is less than the first preset height threshold, the first preset duration is determined as the target operating duration. If the liquid level value is greater than or equal to the first preset height threshold, the liquid level value is compared with a second preset height threshold. If the liquid level value is greater than or equal to the first preset height threshold and less than the second preset height threshold, the second preset duration is determined as the target operating duration. If the liquid level value is greater than or equal to the second preset height threshold, the third preset duration is determined as the target operating duration.

[0060] In some embodiments, in order to further reduce the energy consumption of the heating machine while ensuring that the indoor temperature meets the target temperature preset by the user, after the compressor is controlled to operate at the initial target operating frequency, the inlet water temperature of the heating machine is detected, and the operating frequency of the compressor is adjusted according to the temperature difference between the inlet water temperature and the preset target temperature.

[0061] The heating unit control method provided in this application determines the target frequency level based on the outdoor temperature when the compressor starts, and determines the target running time based on the liquid level in the compressor's oil separator. After the compressor runs at the target frequency level for the target running time, the compressor is controlled to run at the initial target running frequency. This improves the reliability of compressor start-up and operation in low-temperature environments and avoids compressor wear caused by poor oil return in low-temperature environments, which would otherwise result in direct operation at the initial target running frequency.

[0062] To reduce the compensation value of the drive and improve the compressor start-up failure temperature caused by excessively high compensation values ​​under low-temperature start-up conditions, and to quickly draw the refrigerant in the evaporator back to the compressor return port in low-temperature environments, in some embodiments, the outdoor temperature can be compared with a preset temperature threshold to determine the target frequency level. After running at the target frequency level for a target running time, the operating frequency corresponding to the next frequency level of the target frequency level is compared with the initial target operating frequency. When the operating frequency corresponding to the next frequency level of the target frequency level is greater than the initial target operating frequency, the compressor is controlled to run at the initial target operating frequency.

[0063] For example, the outdoor temperature can be compared with a preset temperature threshold. If the outdoor temperature is greater than the preset temperature threshold, the first preset frequency level is determined as the target frequency level. If the outdoor temperature is less than or equal to the preset temperature threshold, the second preset frequency level is determined as the target frequency level. The operating frequency corresponding to the first preset frequency level is greater than the operating frequency corresponding to the second preset frequency level.

[0064] Specifically, such as Figure 2 As shown, Figure 2 This is a flowchart illustrating the compressor start-up control method provided in this application embodiment, showing that the compressor start-up control method includes steps 231 to 235:

[0065] Step 231: Determine the target running time based on the liquid level in the compressor's oil separator, and control the compressor to run at the target frequency level for the target running time.

[0066] Step 232: Compare the operating frequency corresponding to the next frequency level of the target frequency level with the initial target operating frequency.

[0067] Step 233: If the operating frequency corresponding to the next frequency level of the target frequency level is greater than the initial target operating frequency, then the compressor is controlled to operate at the initial target operating frequency.

[0068] Step 234, after step 232, if the running frequency corresponding to the next frequency level of the target frequency level is less than or equal to the initial target running frequency, the current liquid level value in the oil separator of the compressor is obtained, and the new target running time is determined according to the current liquid level value.

[0069] Step 235, the compressor is controlled to run at the running frequency corresponding to the next frequency level of the target frequency level for the new target running time, and the repetition is performed until the running frequency corresponding to the next frequency level is greater than the initial target running frequency, and the compressor is controlled to run at the initial target running frequency.

[0070] For example, the target frequency level is the first preset frequency level, and the initial target running frequency is greater than the running frequency corresponding to the fifth preset frequency level, as shown in Figure 3 , and Figure 3 is a schematic diagram of the compressor startup frequency running provided by the embodiment of the present application.

[0071] After the compressor runs at the running frequency corresponding to the first preset frequency level for the target running time, the compressor is controlled to run at the running frequency corresponding to the second preset frequency level for the second target running time; after the compressor runs at the running frequency corresponding to the third preset frequency level for the third target running time, the compressor is controlled to run at the running frequency corresponding to the fourth preset frequency level for the fourth target running time; after the compressor runs at the running frequency corresponding to the fifth preset frequency level for the fifth target running time, the compressor is controlled to run at the initial target running frequency.

[0072] Among them, the second target running time, the third target running time, the fourth target running time and the fifth target running time are respectively obtained according to the current liquid level value of the oil separator of the compressor collected after the compressor runs for the first target running time, the second target running time, the third target running time and the fourth target running time.

[0073] Considering that the compressor runs at the running frequency corresponding to the frequency level after running at the running frequency corresponding to the frequency level, the processing steps of the heating machine are increased, and based on this, in order to reduce the processing steps of the heating machine, after determining the initial target running frequency of the compressor, the initial target running frequency is compared with the running frequency corresponding to each preset frequency level of the heating machine, and it is determined whether there is a preset frequency level greater than or equal to the initial target running frequency in each preset frequency level; if there is no preset frequency level greater than or equal to the initial target running frequency in each preset frequency level, the compressor is controlled to run according to the schematic diagram of the compressor startup frequency running as shown in Figure 3 .

[0074] If there is a preset frequency level greater than or equal to the initial target operating frequency in each preset frequency level, the first preset frequency level greater than or equal to the initial target operating frequency is determined as the cut-off frequency level. After the compressor operates at the target frequency level for the target operating time, if the cut-off frequency level is the next frequency level corresponding to the target frequency level, the compressor is controlled to operate at the initial target operating frequency; if the cut-off frequency level is not the next frequency level corresponding to the target frequency level, the current liquid level in the oil separator of the compressor is obtained, a new target operating time is determined according to the current liquid level, and the compressor is controlled to operate at the operating frequency corresponding to the next frequency level of the target frequency level for the new target operating time. This is repeated until the next frequency level of the frequency level is the cut-off frequency level, and the compressor is controlled to operate at the initial target operating frequency.

[0075] In some embodiments, after the compressor operates at the initial target operating frequency, in order to reduce the energy consumption of the heating machine, the initial target operating frequency can be adjusted according to the target temperature preset by the user and the current inlet water temperature of the heating machine to determine the target operating frequency of the compressor, and the compressor is controlled to operate at the target operating frequency.

[0076] Specifically, the time length during which the compressor operates at the initial target operating frequency can be monitored. If the time length during which the compressor operates at the initial target operating frequency reaches a preset time length, the initial target operating frequency is adjusted according to the current inlet water temperature of the heating machine and the preset target temperature to determine the target operating frequency of the compressor, and the compressor is controlled to operate at the target operating frequency.

[0077] Optionally, to ensure normal heating in the room, after the time length during which the compressor operates at the initial target operating frequency reaches the preset time length, the initial target operating frequency is compared with a preset reference operating frequency. If the initial target operating frequency is greater than or equal to the preset reference operating frequency, the initial target operating frequency is adjusted according to the current inlet water temperature of the heating machine and the preset target temperature to determine the target operating frequency of the compressor, and the compressor is controlled to operate at the target operating frequency. If the initial target operating frequency is less than the preset reference operating frequency, the preset reference operating frequency is taken as the initial target operating frequency, and the initial target operating frequency is adjusted according to the current inlet water temperature of the heating machine and the preset target temperature to determine the target operating frequency of the compressor, and the compressor is controlled to operate at the target operating frequency.

[0078] The preset reference operating frequency can be the lowest operating frequency preset for the compressor, for example, the preset reference operating frequency can be 50 Hz.

[0079] In this way, after the time length during which the compressor operates at the initial target operating frequency reaches the preset time length, the heating in the room can be ensured, and the energy consumption of the heating machine can be reduced.

[0080] In some embodiments, in the adjustment of the operating frequency of the compressor, a target frequency change value can be determined according to a temperature difference between the target temperature and the current water inlet temperature of the heating machine, the initial target operating frequency is adjusted according to the target frequency change value, the target operating frequency of the compressor is determined, and the compressor is controlled to operate at the target operating frequency. Specifically, as shown in Figure 4 Figure 4 is a flowchart of the method for adjusting the operating frequency of the compressor provided by the embodiments of the present application, and the method for adjusting the operating frequency of the compressor shown includes steps 240-280:

[0081] Step 240, determining a temperature difference between the current water inlet temperature of the heating machine and the preset target temperature.

[0082] In some embodiments, the temperature difference between the current water inlet temperature of the heating machine and the preset target temperature can be determined according to the working mode of the heating machine, the current water inlet temperature of the heating machine and the preset target temperature. Wherein, the working mode includes the heating mode and the cooling mode.

[0083] Optionally, when the working mode of the heating machine is the heating mode, the temperature difference can be obtained by the water inlet temperature-preset target temperature; optionally, when the working mode of the heating machine is the cooling mode, the temperature difference can be obtained by the preset target temperature-water inlet temperature.

[0084] Step 250, determining a frequency adjustment period according to the temperature difference and preset temperature difference data.

[0085] Wherein, the temperature difference data includes a plurality of temperature difference ranges and the frequency adjustment period corresponding to each temperature difference range. For example, as shown in Table 1, Table 1 is an embodiment of the temperature difference data provided by the embodiments of the present application, when the temperature difference is less than-5℃, the frequency adjustment period is determined to be 30s, when the temperature difference is-3℃, the frequency period is determined to be 40s, when the temperature difference is greater than or equal to-2℃ and less than or equal to 2℃, the frequency period is determined to be 50s, when the temperature difference is 3℃, the frequency period is determined to be 40s, and when the temperature difference is greater than 5℃, the frequency adjustment period is determined to be 30s.

[0086] Table 1 Embodiment of temperature difference data

[0087] Temperature difference (°C) ≤-5，or≥5 -3，or，3 [-2,2] Frequency adjustment period (s) 30 40 50

[0088] It should be noted that the temperature difference data shown in Table 1 is only exemplary and does not limit the control method of the heating machine provided by the embodiments of the present application. The temperature difference data can be set according to the actual application scenario, the equipment performance of the heating machine and the environment in which the heating machine is located.

[0089] ​The frequency adjustment period is used to represent the time length of the operation of the compressor at the adjusted frequency after each round of frequency adjustment. For example, when the frequency adjustment period is 50s and the target operation frequency is 50Hz, the compressor is controlled to operate at 50Hz for 50s, and then the current inlet water temperature is collected. According to the temperature difference between the current inlet water temperature and the preset target temperature, steps 250-280 are performed to perform a new round of frequency adjustment.

[0090] In step 260, the target frequency change value is determined according to the temperature difference.

[0091] In some embodiments, the target frequency change value can be obtained by querying the preset mapping data between the temperature difference and the frequency change value according to the temperature difference. The preset mapping data between the temperature difference and the frequency change value includes a plurality of temperature difference ranges and a frequency change value corresponding to each temperature difference range.

[0092] In some embodiments, the target frequency change value can be obtained by inputting the temperature difference into a preset frequency change value prediction model. The preset frequency change value prediction model can be a neural network-based prediction model or a machine learning-based prediction model.

[0093] In some embodiments, the target frequency change value can be obtained according to the temperature difference and the preset mapping relationship between the temperature difference and the frequency change value. The preset mapping relationship between the temperature difference and the frequency change value can be a mapping function, such as a linear function or a nonlinear function.

[0094] In order to provide a more refined frequency adjustment method and ensure that the indoor temperature meets the target temperature preset by the user, in some embodiments, the temperature difference can be compared with the preset temperature difference range. When the temperature difference is not within the preset temperature difference range, it indicates that the inlet water temperature of the heating machine is too high or too low, and the operation frequency of the compressor needs to be reduced or increased. Then, the target frequency change value can be determined by querying the preset mapping data between the temperature difference and the frequency. When the temperature difference is within the preset temperature difference range, it indicates that the difference between the inlet water temperature of the heating machine and the preset target temperature is small. If the target operation frequency is determined by querying the preset mapping data between the temperature difference and the frequency, the operation frequency of the compressor may be adjusted too much, the indoor temperature may change too much, and the energy consumption of the compressor may increase. Therefore, the change trend of the temperature difference between the inlet water temperature and the preset target temperature needs to be considered to adjust the operation frequency of the compressor, so as to ensure that the indoor temperature meets the target temperature preset by the user and reduce the energy consumption of the compressor.

[0095] Specifically, as shown in FIG. 7, the temperature difference between the inlet water temperature and the preset target temperature is compared with the preset temperature difference range in step 710. When the temperature difference is not within the preset temperature difference range, the target frequency change value is determined by querying the preset mapping data between the temperature difference and the frequency in step 720. When the temperature difference is within the preset temperature difference range, the change trend of the temperature difference between the inlet water temperature and the preset target temperature is determined in step 730. Then, the target frequency change value is determined according to the change trend of the temperature difference between the inlet water temperature and the preset target temperature in step 740. Figure 5 Figure 5 ​is a flowchart of a method for determining a target frequency change value based on a temperature difference provided by an embodiment of the present application. The method for determining a target frequency change value based on a temperature difference includes steps 261-263.

[0096] In step 261, the temperature difference is compared with a preset temperature difference range.

[0097] Optionally, the preset temperature difference range can be determined according to an actual application scenario, a model of the heating machine, and a performance of the compressor, which is not specifically limited in the present application. For example, the preset temperature difference range can be [-2, 2], that is, when the temperature difference is greater than or equal to -2℃ and greater than or equal to 2℃, step 262 is performed to determine the target frequency change value; when the temperature difference is less than -2℃ or greater than 2℃, step 263 is performed to determine the target frequency change value.

[0098] In step 262, if the temperature difference matches the preset temperature difference range, the temperature change trend and the temperature deviation of the water inlet temperature of the heating machine are determined according to the temperature difference and historical temperature differences, and the target frequency change value is determined according to the temperature change trend, the temperature deviation, and the temperature difference.

[0099] Optionally, the historical temperature difference can be a temperature difference at a historical moment of a current moment, where the current moment can be a current sampling moment, and the historical moment can be a historical sampling moment of the current sampling moment. It can be understood that the water inlet temperature of the heating machine can be collected at intervals of a preset time period to obtain the temperature difference corresponding to the sampling moment. The current moment can also be a moment within a current frequency adjustment period, and the historical moment can be a historical frequency adjustment period of the current frequency adjustment period.

[0100] Optionally, the historical temperature difference can also be a temperature difference between the collected water inlet temperature and a preset target temperature in a past period of time.

[0101] The temperature change trend of the water inlet temperature of the heating machine represents the change of the water inlet temperature, which includes an increase and a decrease.

[0102] In some embodiments, each historical temperature difference and the temperature difference can be sorted according to a time sequence to obtain a temperature difference sequence, the temperature difference sequence is subjected to a difference processing to obtain a difference sequence, and the temperature change trend of the water inlet temperature of the heating machine is obtained according to a difference result in the difference sequence.

[0103] Optionally, if the difference result in the difference sequence is greater than 0, it is determined that the temperature change trend of the water inlet temperature of the heating machine is an increase; and if the difference result in the difference sequence is less than or equal to 0, it is determined that the temperature change trend of the water inlet temperature of the heating machine is a decrease.

[0104] In some embodiments, each historical temperature difference and the temperature difference can be sorted according to time sequence to obtain a temperature difference sequence, the temperature difference sequence is subjected to difference processing to obtain a difference sequence, the difference sequence is subjected to re-difference processing to obtain a temperature difference change sequence, and the temperature difference change sequence is used to determine the temperature change trend of the water inlet temperature of the heating machine.

[0105] Optionally, if the difference result in the temperature difference change sequence is greater than 0, it is determined that the temperature change trend of the water inlet temperature of the heating machine is increasing; if the difference result in the temperature difference change sequence is less than or equal to 0, it is determined that the temperature change trend of the water inlet temperature of the heating machine is decreasing.

[0106] The temperature deviation refers to the change degree between the temperature difference between the current water inlet temperature and the preset target temperature and the historical temperature difference between the historical water inlet temperature at the previous moment and the preset target temperature, and is used to represent whether the water inlet temperature gradually approaches the preset target temperature or gradually deviates from the preset target temperature.

[0107] In some embodiments, the mapping data between the target temperature difference and the frequency can be determined from the pre-stored mapping data according to the temperature deviation and the temperature change trend, and the target frequency change value can be obtained by querying the mapping data between the target temperature difference and the frequency according to the temperature difference.

[0108] The mapping data includes mapping data between a plurality of temperature differences and frequencies, and a temperature deviation range and a temperature change trend corresponding to each mapping data between a temperature difference and a frequency. For example, in the heating mode, as shown in Table 2, when the temperature change trend is increasing and the temperature deviation is greater than 0, it indicates that the water inlet temperature is gradually rising. When the current water inlet temperature is lower than the target temperature and the temperature difference is within the preset temperature difference range, the compressor runs at the current operating frequency, which can meet the indoor heating demand. Therefore, when the temperature difference is greater than or equal to -2℃ and less than or equal to -0.5℃, the target frequency change value is 0. When the current water inlet temperature is higher than the target temperature or the current water inlet temperature is the same as the target temperature, continuing to run at the current operating frequency will cause the indoor temperature to rise, and the operating frequency of the compressor needs to be reduced. Therefore, when the temperature difference is greater than -0.5℃ and less than or equal to -0.5℃, the target frequency change value is -1Hz, and when the temperature difference is greater than 0.5℃ and greater than or equal to 2℃, the target frequency change value is -3Hz.

[0109] Table 2: Schematic diagram of mapping data

[0110]

[0111] As shown in Table 2, where the increment and decrement represent the temperature change trend as increasing and the temperature change trend as decreasing, respectively. It should be noted that the mapping data shown in the above Table 2 is only exemplary and does not limit the control method of the heating machine provided by the embodiments of the present application. The mapping data can be set according to the actual application scenario.

[0112] In some embodiments, the temperature change trend can be numerically valued to obtain a numerical value corresponding to the temperature change trend. The temperature deviation, the numerical value corresponding to the temperature change trend, and the temperature difference are input into a preset frequency prediction model to obtain the target frequency change value. The preset frequency prediction model can be a prediction model based on machine learning or a prediction model based on a neural network.

[0113] In step 263, if the temperature difference does not match the preset temperature difference range, the target frequency change value is determined according to the temperature difference and preset mapping data between the temperature difference and the frequency.

[0114] The preset mapping data between the temperature difference and the frequency includes a plurality of temperature difference ranges and a frequency change value corresponding to each temperature difference range.

[0115] In step 270, the initial target operating frequency is adjusted according to the target frequency change value to determine the target operating frequency of the compressor.

[0116] In some embodiments, to ensure indoor heating or cooling and improve the service life of the compressor, the initial target operating frequency is adjusted according to the target frequency change value to obtain the initial target operating frequency. The initial target operating frequency is compared with the preset reference operating frequency. If the initial target operating frequency is less than or equal to the preset reference operating frequency, the preset reference operating frequency is determined as the target operating frequency. If the initial target operating frequency is greater than the preset reference operating frequency, the initial target operating frequency is determined as the target operating frequency.

[0117] In step 280, the compressor is controlled to operate at the target operating frequency for a time length corresponding to the frequency adjustment period.

[0118] In some embodiments, after the compressor is controlled to operate at the target operating frequency for a time length corresponding to the frequency adjustment period, the current inlet water temperature of the heating machine is collected, the target temperature preset by the user is obtained, and the above steps 250-280 are executed to adjust the operating frequency of the compressor in a new round.

[0119] The control method of the heating machine provided in the embodiments of the present application determines the target frequency level through the outdoor temperature when the compressor starts, determines the target running duration according to the liquid level value in the oil separator of the compressor, and controls the compressor to run at the initial target running frequency after the compressor runs at the target frequency level for the target running duration, thereby improving the reliability of the compressor in a low-temperature environment and avoiding poor oil return effect of the compressor in a low-temperature environment, so that the compressor is directly run at the initial target running frequency, thereby causing the compressor to be damaged.

[0120] In order to better implement the control method of the heating machine provided in the embodiments of the present application, the control device of the heating machine is provided on the basis of the control method of the heating machine, as shown in Figure 6 Figure 6 is a structural schematic diagram of the control device of the heating machine provided in the embodiments of the present application, and the control device of the heating machine shown in the figure comprises:

[0121] The temperature acquisition module 601 is configured to control the start of the compressor of the heating machine, acquire the outdoor temperature and the water inlet temperature of the heating machine.

[0122] The frequency determination module 602 is configured to determine the target frequency level according to the outdoor temperature, and determine the initial target running frequency of the compressor according to the outdoor temperature and the water inlet temperature of the heating machine.

[0123] The start control module 603 is configured to determine the target running duration according to the liquid level value in the oil separator of the compressor, control the compressor to run at the target frequency level for the target running duration, and then control the compressor to run at the initial target running frequency.

[0124] In some embodiments, the control device of the heating machine further comprises:

[0125] The running control module 604 is configured to, if the duration of the compressor running at the initial target running frequency reaches a preset duration, adjust the initial target running frequency according to the current water inlet temperature of the heating machine and a preset target temperature, determine the target running frequency of the compressor, and control the compressor to run at the target running frequency.

[0126] In some embodiments, the running control module 604 is configured to:

[0127] determine the temperature difference between the current water inlet temperature of the heating machine and the preset target temperature;

[0128] determine the frequency adjustment period according to the temperature difference and preset temperature difference data;

[0129] determine the target frequency change value according to the temperature difference;

[0130] ​adjusting the initial target operating frequency according to the target frequency change value, to determine the target operating frequency of the compressor;

[0131] controlling the compressor to operate at the target operating frequency for a time length corresponding to the target operating frequency adjustment period.

[0132] In some embodiments, the operation control module 604 is configured to:

[0133] compare the temperature difference with a preset temperature difference range;

[0134] if the temperature difference matches the preset temperature difference range, determine a temperature change trend and a temperature deviation of the water inlet temperature of the heating machine according to the temperature difference and historical temperature differences, and determine the target frequency change value according to the temperature change trend, the temperature deviation and the temperature difference;

[0135] if the temperature difference does not match the preset temperature difference range, determine the target frequency change value according to the temperature difference and preset mapping data between temperature differences and frequencies.

[0136] In some embodiments, the operation control module 604 is configured to:

[0137] compare the initial target operating frequency with a preset reference operating frequency;

[0138] if the initial target operating frequency is greater than or equal to the preset reference operating frequency, perform adjusting the initial target operating frequency according to the current water inlet temperature of the heating machine and the preset target temperature, to determine the target operating frequency of the compressor, and control the compressor to operate at the target operating frequency;

[0139] if the initial target operating frequency is less than the preset reference operating frequency, take the preset reference operating frequency as the initial target operating frequency, perform adjusting the initial target operating frequency according to the current water inlet temperature of the heating machine and the preset target temperature, to determine the target operating frequency of the compressor, and control the compressor to operate at the target operating frequency.

[0140] In some embodiments, the start control module 603 is configured to:

[0141] compare the operating frequency corresponding to the next frequency level of the target frequency level with the initial target operating frequency;

[0142] if the operating frequency corresponding to the next frequency level of the target frequency level is greater than the initial target operating frequency, perform controlling the compressor to operate at the initial target operating frequency.

[0143] In some embodiments, the start control module 603 is configured to:

[0144] If the running frequency corresponding to the next frequency level of the target frequency level is less than or equal to the initial target running frequency, a current liquid level value in an oil separator of the compressor is acquired, and a new target running time is determined according to the current liquid level value;

[0145] The compressor is controlled to run at the running frequency corresponding to the next frequency level of the target frequency level for the new target running time, and the process is repeated until the running frequency corresponding to the next frequency level is greater than the initial target running frequency, and the compressor is controlled to run at the initial target running frequency for the preset time.

[0146] In some embodiments, the frequency determination module 602 is configured to:

[0147] Compare the outdoor temperature with a preset temperature threshold;

[0148] If the outdoor temperature is greater than the preset temperature threshold, a first preset frequency level is determined as the target frequency level;

[0149] If the outdoor temperature is less than or equal to the preset temperature threshold, a second preset frequency level is determined as the target frequency level; the running frequency corresponding to the first preset frequency level is greater than the running frequency corresponding to the second preset frequency level.

[0150] The control device of the heating machine provided by the embodiments of the present application determines the target frequency level through the outdoor temperature when the compressor starts, determines the target running time according to the liquid level value in the oil separator of the compressor, and controls the compressor to run at the initial target running frequency after the compressor runs at the target frequency level for the target running time, thereby improving the reliability of the compressor in a low-temperature environment and avoiding poor oil return of the compressor in a low-temperature environment, which causes the compressor to run directly at the initial target running frequency and results in compressor loss.

[0151] The embodiments of the present application also provide a server, as shown in Figure 7 The server structure involved in the embodiments of the present application is shown, and specifically:

[0152] The server can include a processor 701 with one or more processing cores, a memory 702 with one or more computer readable storage media, a power supply 703, and an input unit 704. Those skilled in the art can understand that the server structure shown in Figure 7 does not limit the server, and the server can include more or fewer components than shown in the figure, or combine certain components, or different component arrangements.

[0153] Among them:

[0154] The processor 701 is the control center of the server, which connects the various parts of the server through various interfaces and lines, and performs various functions and processes data of the server by running or executing software programs and / or modules stored in the memory 702 and calling data stored in the memory 702, thereby monitoring the server as a whole. Optionally, the processor 701 can include one or more processing cores; preferably, the processor 701 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 701.

[0155] The memory 702 can be used to store software programs and modules, and the processor 701 executes various functions and data processing by running the software programs and modules stored in the memory 702. The memory 702 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), etc.; and the data storage area can store data created according to the use of the server, etc. In addition, the memory 702 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device. Accordingly, the memory 702 can also include a memory controller to provide access for the processor 701 to the memory 702.

[0156] The server further includes a power supply 703 for supplying power to various components, and preferably, the power supply 703 can be logically connected to the processor 701 through a power management system, so as to realize functions such as management of charging, discharging and power consumption management through the power management system. The power supply 703 can also include one or more than one direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power state indicator, etc. Any component.

[0157] The server can also include an input unit 704, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0158] Although not shown, the server can also include a display unit, etc., which will not be described here. Specifically, in the present embodiment, the processor 701 in the server will load the executable file corresponding to the process of one or more than one application program into the memory 702 according to the following instructions, and run the application program stored in the memory 702 by the processor 701, thereby realizing various functions, as follows:

[0159] controlling the compressor of the heating machine to start, collecting the outdoor temperature and the water temperature of the heating machine;

[0160] determining the target frequency level according to the outdoor temperature, and determining the initial target operating frequency of the compressor according to the outdoor temperature and the water temperature of the heating machine;

[0161] determining the target operating duration according to the liquid level value in the oil separator of the compressor, controlling the compressor to operate at the target frequency level for the target operating duration, and then controlling the compressor to operate at the initial target operating frequency.

[0162] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions, or by related hardware controlled by the instructions, which can be stored in a computer readable storage medium and loaded and executed by a processor.

[0163] To this end, an embodiment of the present application provides a storage medium, which stores a computer program capable of being loaded by a processor to execute the steps in any of the control methods of the heating machine provided by the embodiments of the present application. For example, the computer program can execute the following steps:

[0164] controlling the compressor of the heating machine to start, collecting the outdoor temperature and the water temperature of the heating machine;

[0165] determining the target frequency level according to the outdoor temperature, and determining the initial target operating frequency of the compressor according to the outdoor temperature and the water temperature of the heating machine;

[0166] determining the target operating duration according to the liquid level value in the oil separator of the compressor, controlling the compressor to operate at the target frequency level for the target operating duration, and then controlling the compressor to operate at the initial target operating frequency.

[0167] The specific implementation of the above operations can be referred to the foregoing embodiments, which will not be described here.

[0168] The storage medium can include a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0169] Since the computer program stored in the storage medium can execute the steps in any of the control methods of the heating machine provided by the embodiments of the present application, the beneficial effects of any of the control methods of the heating machine provided by the embodiments of the present application can be achieved, which will be described in detail in the foregoing embodiments, and will not be described here.

[0170] The control method and device of the heating machine, the electronic device and the storage medium provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed, and the above description of the embodiments should not be understood as a limitation of the present application.

Claims

1. A control method of a heating machine, characterized by, The method comprises: controlling the compressor of the heating machine to start, collecting the outdoor temperature and the water temperature of the heating machine; determining a target frequency level according to the outdoor temperature, and determining an initial target operating frequency of the compressor according to the outdoor temperature and the water temperature of the heating machine; determining a target operating duration according to the liquid level value in the oil separator of the compressor, controlling the compressor to operate at the target frequency level for the target operating duration, and then controlling the compressor to operate at the initial target operating frequency; if the duration of the compressor operating at the initial target operating frequency reaches a preset duration, adjusting the initial target operating frequency according to the current water temperature of the heating machine and a preset target temperature, determining a target operating frequency of the compressor, and controlling the compressor to operate at the target operating frequency; the method further comprises: determining a temperature difference between the current water temperature of the heating machine and the preset target temperature; determining a frequency adjustment period according to the temperature difference and preset temperature difference data; determining a target frequency change value according to the temperature difference; adjusting the initial target operating frequency according to the target frequency change value to determine the target operating frequency of the compressor; controlling the compressor to operate at the target operating frequency for a duration corresponding to the frequency adjustment period.

2. The control method of a heating machine according to claim 1, characterized by, determining a target frequency change value according to the temperature difference, comprises: comparing the temperature difference with a preset temperature difference range; if the temperature difference matches the preset temperature difference range, determining a temperature change trend and a temperature deviation of the water temperature of the heating machine according to the temperature difference and historical temperature differences, and determining a target frequency change value according to the temperature change trend, the temperature deviation and the temperature difference; if the temperature difference does not match the preset temperature difference range, determining a target frequency change value according to the temperature difference and preset mapping data between temperature differences and frequencies.

3. The control method of the heating machine according to claim 1, characterized by, before adjusting the initial target operating frequency according to the current water temperature of the heating machine and the preset target temperature, determining the target operating frequency of the compressor, and controlling the compressor to operate at the target operating frequency, the method comprises: comparing the initial target operating frequency with a preset reference operating frequency; if the initial target operating frequency is greater than or equal to the preset reference operating frequency, executing the step of adjusting the initial target operating frequency according to the current water temperature of the heating machine and the preset target temperature, determining the target operating frequency of the compressor, and controlling the compressor to operate at the target operating frequency. If the initial target operating frequency is less than the preset reference operating frequency, the preset reference operating frequency is taken as the initial target operating frequency, the initial target operating frequency is adjusted according to the current water inlet temperature of the heating machine and a preset target temperature, the target operating frequency of the compressor is determined, and the compressor is controlled to operate at the target operating frequency.

4. The control method of a heating machine according to claim 1, characterized by, Before the control of the compressor to operate at the initial target operating frequency, the method comprises: comparing the operating frequency corresponding to the next frequency level of the target frequency level with the initial target operating frequency; if the operating frequency corresponding to the next frequency level of the target frequency level is greater than the initial target operating frequency, the control of the compressor to operate at the initial target operating frequency is performed.

5. The control method of a heating machine according to claim 4, characterized in that, After the comparison of the operating frequency corresponding to the next frequency level of the target frequency level with the initial target operating frequency, the method comprises: if the operating frequency corresponding to the next frequency level of the target frequency level is less than or equal to the initial target operating frequency, a current liquid level value in an oil separator of the compressor is obtained, and a new target operating duration is determined according to the current liquid level value; the compressor is controlled to operate at the operating frequency corresponding to the next frequency level of the target frequency level for the new target operating duration, and the operation is repeated until the operating frequency corresponding to the next frequency level is greater than the initial target operating frequency, and the control of the compressor to operate at the initial target operating frequency for a preset duration is performed.

6. The control method of a heating machine according to any one of claims 1 to 5, characterized in that, The determination of the target frequency level according to the outdoor temperature comprises: comparing the outdoor temperature with a preset temperature threshold; if the outdoor temperature is greater than the preset temperature threshold, a first preset frequency level is determined as the target frequency level; if the outdoor temperature is less than or equal to the preset temperature threshold, a second preset frequency level is determined as the target frequency level; the operating frequency corresponding to the first preset frequency level is greater than the operating frequency corresponding to the second preset frequency level.

7. A control device for a heating machine, characterized by comprising: The device comprises: a temperature acquisition module configured to control a compressor of a heating machine to start, acquire an outdoor temperature and a water inlet temperature of the heating machine; a frequency determination module configured to determine a target frequency level according to the outdoor temperature, and determine an initial target operating frequency of the compressor according to the outdoor temperature and the water inlet temperature of the heating machine; a start control module configured to determine a target operating duration according to a liquid level value in an oil separator of the compressor, control the compressor to operate at the target frequency level for the target operating duration, and then control the compressor to operate at the initial target operating frequency for a preset duration; an operating control module configured to adjust the initial target operating frequency according to a current water inlet temperature of the heating machine and a preset target temperature, determine a target operating frequency of the compressor, and control the compressor to operate at the target operating frequency; an operating control module configured to adjust the initial target operating frequency according to a current water inlet temperature of the heating machine and a preset target temperature, determine a target operating frequency of the compressor, and control the compressor to operate at the target operating frequency; If the compressor runs for a preset time length according to the initial target running frequency, the initial target running frequency is adjusted according to the current water inlet temperature of the heating machine and the preset target temperature, the target running frequency of the compressor is determined, and the compressor is controlled to run at the target running frequency. If the compressor runs for a preset time length according to the initial target running frequency, the initial target running frequency is adjusted according to the current water inlet temperature of the heating machine and the preset target temperature, the target running frequency of the compressor is determined, and the compressor is controlled to run at the target running frequency. Determine the temperature difference between the current water inlet temperature of the heating machine and the preset target temperature. Determine the frequency adjustment period according to the temperature difference and the preset temperature difference data. Determine the target frequency change value according to the temperature difference. Adjust the initial target running frequency according to the target frequency change value to determine the target running frequency of the compressor. Control the compressor to run for a time length corresponding to the frequency adjustment period at the target running frequency.

8. An electronic device, comprising: The memory stores a computer program, and the processor is configured to execute the computer program in the memory to perform the operations in the control method of the heating machine according to any one of claims 1 to 6.

9. A storage medium, characterized by The storage medium stores a plurality of instructions, which are suitable for being loaded by the processor to perform the steps in the control method of the heating machine according to any one of claims 1 to 6.

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