CN112628942B - Defrosting control method and device, storage medium and terminal - Google Patents
Defrosting control method and device, storage medium and terminal Download PDFInfo
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- CN112628942B CN112628942B CN202011461088.9A CN202011461088A CN112628942B CN 112628942 B CN112628942 B CN 112628942B CN 202011461088 A CN202011461088 A CN 202011461088A CN 112628942 B CN112628942 B CN 112628942B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The invention discloses a defrosting control method, a defrosting control device, a storage medium and a terminal, wherein the method comprises the following steps: under the condition that defrosting is determined to be needed, controlling to enter bypass defrosting; in the bypass defrosting process, determining whether the defrosting time length exceeds the longest duration of the current bypass defrosting and does not reach the condition of exiting defrosting; and under the condition that the defrosting time length is determined to exceed the longest duration of the current bypass defrosting and the defrosting exit condition is not met, controlling to enter reversing defrosting until the defrosting exit condition is met. Through the scheme, the problem that the existing defrosting effect and comfort cannot be achieved by using the bypass defrosting and reversing defrosting singly is solved, and the technical effect of ensuring the comfort at the same time under the condition of improving the defrosting efficiency is achieved.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a defrosting control method and device, a storage medium and a terminal.
Background
When the outdoor temperature is low, the condenser is frosted, which affects the performance of the air conditioner, and for this reason, defrosting control is required. However, the existing air-conditioning defrosting methods have certain disadvantages, such as: the bypass defrosting is good in defrosting effect due to the existence of the heat stored in the compressor at the beginning, but along with the consumption of the heat stored, the refrigerant is continuously gathered in the liquid storage tank, the input power of the compressor is continuously attenuated, and the suction superheat degree is always 0 ℃, so that the exhaust temperature can be continuously reduced along with the prolonging of the defrosting time, the subsequent defrosting efficiency is seriously influenced, and when the frost layer is thick, the condition of incomplete defrosting can occur. For another example: the reversing defrosting has a good defrosting effect, but the defrosting absorbs heat from the indoor space, so that the comfort is poor.
Aiming at the problems existing in the prior defrosting control, an effective solution is not provided at present.
Disclosure of Invention
The invention aims to provide a defrosting control method, a defrosting control device, a storage medium and a terminal aiming at the defects, so as to solve the technical problem that the defrosting effect and the comfort cannot be simultaneously met in the defrosting control in the prior art, and achieve the effect of improving the comfort while effectively defrosting.
The invention provides a defrosting control method, which comprises the following steps:
under the condition that defrosting is determined to be needed, controlling to enter bypass defrosting;
in the bypass defrosting process, determining whether the defrosting time length exceeds the longest duration of the current bypass defrosting and does not reach the condition of exiting defrosting;
and under the condition that the defrosting time length is determined to exceed the longest duration of the current bypass defrosting and the defrosting exit condition is not met, controlling to enter reversing defrosting until the defrosting exit condition is met.
Further, determining whether defrosting is required comprises:
respectively acquiring real-time outdoor environment temperature and real-time outer tube temperature through a temperature sensing bulb;
determining whether the real-time outdoor environment temperature and the real-time outer pipe temperature are lower than a preset defrosting temperature threshold value or not;
and determining that defrosting is required under the condition that the defrosting temperature is lower than a preset defrosting temperature threshold.
Further, before determining whether the defrosting time length exceeds the longest duration of the current bypass defrosting, the method further comprises the following steps:
acquiring the temperature of an outer ring, the temperature of an outer pipe, the change speed of the temperature of the outer pipe, the exhaust temperature and the change speed of the exhaust temperature in a preset time after the bypass defrosting is carried out;
and inputting the outer ring temperature, the outer tube temperature, the change speed of the outer tube temperature, the exhaust temperature and the change speed of the exhaust temperature in a preset time after the bypass defrosting is carried out into a pre-trained neural network model to obtain the longest duration of the bypass defrosting.
Further, the neural network model is a three-layer BP neural network, including: the neuron-based neural network comprises an input layer, a middle layer and an output layer, wherein the input layer is provided with 5 neurons, and the output layer is provided with 1 neuron.
Further, determining whether an exit defrost condition is achieved comprises:
acquiring real-time outer tube temperature;
determining whether the real-time outer tube temperature is greater than a preset temperature threshold value;
determining whether the time greater than the preset temperature threshold exceeds a preset time length or not under the condition of being greater than the preset temperature threshold;
and under the condition that the preset time length is determined to be exceeded, determining that the defrosting exiting condition is reached.
In accordance with the above method, another aspect of the present invention provides a defrosting control apparatus, including:
the first control module is used for controlling the bypass defrosting to be carried out under the condition that the defrosting is determined to be needed;
the first determining module is used for determining whether the defrosting time length exceeds the longest duration time of the current bypass defrosting and does not reach the condition of exiting defrosting in the bypass defrosting process;
and the second control module is used for controlling the entering of reversing defrosting until the condition of quitting defrosting is reached under the condition that the defrosting time length is determined to exceed the longest continuous time length of the current bypass defrosting and the condition of quitting defrosting is not met.
Further, the method also comprises the following steps:
the second determining module is used for respectively acquiring real-time outdoor environment temperature and real-time outer tube temperature through the temperature sensing bulb; determining whether the real-time outdoor environment temperature and the real-time outer pipe temperature are lower than a preset defrosting temperature threshold value or not; and determining that defrosting is required under the condition that the defrosting temperature is lower than a preset defrosting temperature threshold.
In accordance with another aspect of the present invention, there is provided an air conditioner including: the defrosting control device is described above.
In accordance with the above method, a further aspect of the present invention provides a storage medium comprising: the storage medium has stored therein a plurality of instructions; the plurality of instructions are used for loading and executing the defrosting control method by the processor.
In accordance with the above method, a further aspect of the present invention provides a terminal, including: a processor for executing a plurality of instructions; a memory to store a plurality of instructions; wherein the instructions are stored by the memory, and loaded and executed by the processor to perform the defrosting control method.
Therefore, according to the scheme of the invention, under the condition that defrosting is required, bypass defrosting is controlled to enter firstly, and if the time length of entering the bypass defrosting exceeds the longest continuous time length of the current bypass defrosting, reversing defrosting is carried out until the condition of exiting the defrosting is achieved. Namely, the bypass defrosting and the reversing defrosting are matched for use, so that the problem that the defrosting effect and the comfort cannot be achieved due to the fact that the bypass defrosting and the reversing defrosting are singly used can be solved, and the technical effect that the comfort can be guaranteed simultaneously under the condition that the defrosting efficiency is improved is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic flow chart illustrating a defrosting control method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the by-pass defrosting of the present invention;
FIG. 3 is a schematic diagram of the reverse defrosting of the present invention;
FIG. 4 is a block diagram of the control system of the present invention;
FIG. 5 is a graph showing the relationship between the frost-melting threshold and the outer-ring temperature of the outer tube according to the present invention;
FIG. 6 is a logic diagram of the control system of the present invention;
FIG. 7 is a flow chart of a neural network of the present invention;
FIG. 8 is a step relationship graph of the outer tube defrosting temperature threshold and the outer ring temperature according to the present invention;
fig. 9 is a block diagram of a defrosting control device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to an embodiment of the present invention, a defrosting control method is provided, as shown in fig. 1, which is a schematic flow chart of an embodiment of the method of the present invention. The defrosting control method can comprise the following steps:
step 101: under the condition that defrosting is determined to be needed, controlling to enter bypass defrosting;
step 102: in the bypass defrosting process, determining whether the defrosting time length exceeds the longest duration of the current bypass defrosting and does not reach the condition of exiting defrosting;
step 103: and under the condition that the defrosting time length is determined to exceed the longest duration of the current bypass defrosting and the defrosting exit condition is not met, controlling to enter reversing defrosting until the defrosting exit condition is met.
Specifically, the determination of whether defrosting is required may be determined as follows: respectively acquiring real-time outdoor environment temperature and real-time outer tube temperature through a temperature sensing bulb; determining whether the real-time outdoor environment temperature and the real-time outer pipe temperature are lower than a preset defrosting temperature threshold value or not; and determining that defrosting is required under the condition that the defrosting temperature is lower than a preset defrosting temperature threshold. Namely, a preset defrosting threshold value is set as a triggering condition for triggering defrosting, and if the condition is met, the defrosting operation is triggered.
Considering the bypass defrosting, the defrosting effect is better due to the existence of the heat stored in the compressor at the beginning, but the refrigerant is continuously gathered in the liquid storage tank along with the consumption of the heat stored, the input power of the compressor is continuously attenuated, and the suction superheat degree is always 0 ℃, so the exhaust temperature is continuously reduced along with the prolonging of the defrosting time, and the subsequent defrosting efficiency is seriously influenced. Therefore, a neural network model can be established according to experience or experimental data, and based on the model, the longest duration time suitable for bypass defrosting under the current condition can be obtained, so that the time point for switching to reversing defrosting is determined. Specifically, the temperature of the outer ring, the temperature of the outer pipe, the change speed of the temperature of the outer pipe, the exhaust temperature and the change speed of the exhaust temperature in a preset time (for example, 30s) after entering the bypass defrosting are obtained; and inputting the outer ring temperature, the outer tube temperature, the change speed of the outer tube temperature, the exhaust temperature and the change speed of the exhaust temperature in a preset time after the bypass defrosting is carried out into a pre-trained neural network model to obtain the longest duration of the bypass defrosting.
Wherein, considering the computing power of the processor, the neural network model may be a three-layer BP neural network, including: the neuron-based neural network comprises an input layer, a middle layer and an output layer, wherein the input layer is provided with 5 neurons, and the output layer is provided with 1 neuron.
For defrosting withdrawal, a trigger condition may also be set, for example, a real-time outer tube temperature may be obtained; determining whether the real-time outer tube temperature is greater than a preset temperature threshold value; determining whether the time greater than the preset temperature threshold exceeds a preset time length or not under the condition of being greater than the preset temperature threshold; and under the condition that the preset time length is determined to be exceeded, determining that the defrosting exiting condition is reached.
Through a large number of tests, the technical scheme of the embodiment is adopted, under the condition that defrosting is needed, the bypass defrosting is controlled to enter firstly, and if the time length of entering the bypass defrosting exceeds the longest continuous time length of the current bypass defrosting, reversing defrosting is carried out until the condition of exiting the defrosting is achieved. Namely, the bypass defrosting and the reversing defrosting are matched for use, so that the problem that the defrosting effect and the comfort cannot be achieved due to the fact that the bypass defrosting and the reversing defrosting are singly used can be solved, and the technical effect that the comfort can be guaranteed simultaneously under the condition that the defrosting efficiency is improved is achieved.
The above method is described below with reference to a specific example, however, it should be noted that the specific example is only for better describing the present application and is not to be construed as limiting the present application.
In the embodiment, a method of performing preliminary defrosting by a bypass defrosting mode and then judging whether reversing defrosting is adopted by a neural network according to a defrosting condition is provided, compared with the existing method of performing defrosting by only adopting a defrosting mode, the method of performing defrosting by the bypass defrosting mode can avoid the problem of incomplete defrosting caused by insufficient defrosting capacity, and can shorten the duration time of reversing defrosting, thereby improving the indoor comfort.
The air conditioner adopting the defrosting method can fully utilize the advantages of two defrosting modes, and the running comfort of the air conditioner is improved on the premise of ensuring the defrosting effect.
As shown in fig. 2, the schematic diagram of the bypass defrosting is shown, and when the bypass defrosting is performed, the check valve is opened, the four-way valve is not reversed, and the flow direction of the refrigerant is maintained without changing the heating cycle direction. At the moment, part of high-temperature and high-pressure refrigerant gas from the compressor is condensed and heated by the indoor condenser to become liquid, then enters the outdoor condenser after being throttled by the electronic expansion valve, the other part of the refrigerant enters the outdoor condenser through the one-way valve to be defrosted, and the two parts of refrigerant are gasified by the condenser and then enter the compressor again through the liquid storage tank after being gathered. Under the circulation operation, the refrigerant enters the heat exchanger from the inlet of the heating circulation direction, so that the defrosting of the lower part of the heat exchanger is facilitated. For bypass defrosting, the sources of defrosting heat mainly come from compressor heat storage and compressor work.
As shown in fig. 3, it is a schematic diagram of the reverse defrosting, when the defrosting is performed, the check valve is closed, the four-way valve is reversed, the flow direction of the refrigerant is changed, and the refrigerant is turned to the cooling direction. At the moment, high-temperature and high-pressure refrigerant gas from the compressor directly enters the outdoor heat exchanger to be condensed and heated to be changed into liquid, then enters the indoor heat exchanger to absorb heat through the throttling of the electronic expansion valve to be changed into gas, and then enters the compressor again through the liquid storage tank. Under the circulation, the refrigerant enters the heat exchanger from the outlet of the heating circulation direction, and defrosting is favorably carried out on the upper part of the heat exchanger. For the reversing defrosting, the defrosting heat source mainly comprises indoor heat absorption and compressor work.
As shown in fig. 4, a control system configuration diagram in this example is provided, and the control system includes: and controlling components such as an outer machine mainboard, a temperature sensing bulb, a compressor, a four-way valve, a one-way valve and the like. Wherein, the temperature sensing package includes: the condenser temperature sensing bulb, the outer ring temperature sensing bulb and the compressor exhaust temperature sensing bulb are respectively used for acquiring the temperature of the outer pipe, the outdoor environment temperature and the compressor exhaust temperature. The outer mainboard includes: the defrosting device comprises a timer module, a data acquisition module, a defrosting control module and a bypass defrosting time calculation module. The timer module is used for recording defrosting time; the data acquisition module is used for acquiring the temperature of the outer pipe, the temperature of the outer ring and the exhaust temperature of the compressor from the thermal bulb and transmitting data to the corresponding modules, wherein the temperature of the outer pipe, the temperature of the outer ring and the defrosting time are transmitted to the defrosting control module, and the temperature of the outer pipe, the exhaust temperature and the temperature of the outer ring are transmitted to the defrosting effect judgment module; the defrosting control module determines whether bypass defrosting is carried out or not according to the temperature of the outer pipe and the outdoor environment during normal operation, or controls whether reversing defrosting is carried out or defrosting is finished or not according to a defrosting effect during defrosting, and transmits an instruction to the corresponding module; the bypass defrosting time calculation module can be composed of a neural network and is used for detecting the outer ring temperature, the outer pipe temperature and the change speed thereof, the exhaust temperature and the change speed thereof at the moment after the bypass defrosting is carried out for 30s, inputting the detected data into the neural network for calculation to obtain the longest duration time of the bypass defrosting at the moment, and feeding the result back to the defrosting control module. The compressor control module, the four-way valve control module and the one-way valve control module perform bypass defrosting or reversing defrosting according to the received defrosting instruction.
As shown in fig. 5, the relationship between the external tube temperature defrosting threshold Td and the external ambient temperature is shown. When the outer ring temperature is higher than T2 (the value is generally 3-8 ℃), the outer tube defrosting threshold Td is T1 (the value is-5-0 ℃); when the outer tube temperature is less than T2, the threshold Td is linear with the outer ring temperature (Td ═ To-8 ℃), increasing with increasing outer ring temperature. In the control process, if the actual temperature of the outer tube temperature is greater than or equal to the threshold Td at the corresponding outer ring temperature, the frosting is not serious, and the defrosting is not needed; and if the actual temperature of the outer pipe temperature is less than the threshold Td of the corresponding outer pipe temperature, the frosting is considered to be serious, and the bypass defrosting is required.
Fig. 6 is a control logic diagram, after the air conditioner is started, the real-time outdoor environment temperature and the real-time outer tube temperature are respectively obtained through the temperature sensing bulb, the defrosting threshold at this time is obtained through fig. 5, whether bypass defrosting is needed or not is judged, and if defrosting is not needed, normal operation is continued until a bypass defrosting condition is met. After entering bypass defrosting for 30s, detecting the outer ring temperature, the outer pipe temperature and the change speed thereof, the exhaust temperature and the change speed thereof at the moment, inputting the detected data into a neural network trained in advance, and calculating the longest duration time ts of the bypass defrosting at the moment (if the time is exceeded, the bypass defrosting capacity is insufficient). And then, monitoring the temperature of the outer pipe in real time and recording the time, and if the temperature of the outer pipe is detected to be higher than Tw (the value can be 8-12 ℃) and the duration is higher than t0 (the value is 50-70s), determining that the defrosting is clean, ending the defrosting, and entering the next cycle. Before the above conditions are not met, if the actual running time of the bypass defrosting exceeds the longest duration calculated by the neural network, the reversing defrosting is entered. And after entering reversing defrosting, detecting the temperature of the outer pipe in real time and recording time, when the temperature of the outer pipe is more than Tw and the duration is more than t0, considering that defrosting is clean, exiting defrosting, and entering the next cycle.
As shown in fig. 7, a working flow chart of a neural network is obtained by performing a large number of experiments in a laboratory, measuring the running conditions of the corresponding model when performing bypass defrosting under different working conditions, different frost layer thicknesses and different compressor running frequencies, so as to obtain the running conditions of bypass defrosting under different external ambient temperatures, different external pipe temperatures and their variation speeds, different exhaust temperatures and their variation speeds, and determining the longest duration of bypass defrosting under corresponding conditions (to start defrosting until the frost layer is not melted again) according to the frost layer melting conditions. Meanwhile, the structure of the neural network is determined, and because the computing capacity of the air conditioner main board is limited, a three-layer BP neural network can be adopted, wherein an input layer is provided with 5 neurons and corresponds to five inputs, a middle layer can select 5-10 neurons, and an output layer is provided with 1 neuron and corresponds to the longest duration of output. The excitation function of the middle layer selects a positive sigmoid function and the excitation function of the middle layer selects a negative sigmoid function, and the output layer selects a nonnegative sigmoid function. And then, training the neural network through the data obtained by the experiment, and embedding the trained neural network into the air conditioner mainboard. In the operation process, after the control module sends out an instruction of entering bypass defrosting, the control module waits for the execution of each actuator to be in place (30s), and the outer ring temperature, the outer pipe temperature and the change speed thereof, and the exhaust temperature and the change speed thereof at the moment are collected and input into the trained neural network, so that the longest duration time of the bypass defrosting at the moment can be obtained for subsequent control.
As shown in fig. 8, the step relation graph of the external tube defrosting temperature threshold and the external ring temperature is shown, and considering that the computing capacity of the air conditioner mainboard is limited, the step relation graph shown in fig. 5 can also be represented by the step relation shown in fig. 8, so as to save the computing power. In fig. 8, the threshold Td is-3 ℃ when the outer ring temperature is 5 ℃ or higher, and is set to one interval every 5 ℃ when the outer ring temperature is less than 5 ℃, the threshold Td for each interval is kept uniform, and the difference between the thresholds Td for the intervals is 5 ℃. Furthermore, the number of the layers of the neural network and the number of neurons in each layer can be changed according to different training results.
In the above embodiment, the bypass defrosting and the reversing defrosting are organically combined according to the actual defrosting effect, the neural network is used for accurately judging the time for reversing defrosting, the advantages of the bypass defrosting and the reversing defrosting are fully exerted, and the defects of the bypass defrosting and the reversing defrosting are avoided, so that the comfort of the air conditioner is improved on the premise of ensuring the defrosting effect.
According to an embodiment of the invention, a defrosting control device corresponding to the defrosting control method is also provided. Referring to fig. 9, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The defrosting control means may include:
the first control module 901 is used for controlling the bypass defrosting to be performed under the condition that the defrosting is determined to be needed;
a first determining module 902, configured to determine, in a bypass defrosting process, whether a defrosting time exceeds a longest duration of current bypass defrosting and a defrosting exit condition is not met;
and the second control module 903 is used for controlling the reversing defrosting to be started until the defrosting exiting condition is reached under the condition that the defrosting time exceeds the longest continuous time of the current bypass defrosting and the defrosting exiting condition is not reached.
In one embodiment, the defrosting control apparatus may further include: the second determining module is used for respectively acquiring real-time outdoor environment temperature and real-time outer tube temperature through the temperature sensing bulb; determining whether the real-time outdoor environment temperature and the real-time outer pipe temperature are lower than a preset defrosting temperature threshold value or not; and determining that defrosting is required under the condition that the defrosting temperature is lower than a preset defrosting temperature threshold.
In one embodiment, before determining whether the defrosting time exceeds the longest duration of the current bypass defrosting, the temperature of the outer ring, the temperature of the outer pipe, the change speed of the temperature of the outer pipe, the exhaust temperature and the change speed of the exhaust temperature at a preset time after the bypass defrosting is started can be obtained; and inputting the outer ring temperature, the outer tube temperature, the change speed of the outer tube temperature, the exhaust temperature and the change speed of the exhaust temperature in a preset time after the bypass defrosting is carried out into a pre-trained neural network model to obtain the longest duration of the bypass defrosting.
In one embodiment, the neural network model may be a three-layer BP neural network, including: the neuron-based neural network comprises an input layer, a middle layer and an output layer, wherein the input layer is provided with 5 neurons, and the output layer is provided with 1 neuron.
In one embodiment, determining whether an exit defrost condition is achieved may include: acquiring real-time outer tube temperature; determining whether the real-time outer tube temperature is greater than a preset temperature threshold value; determining whether the time greater than the preset temperature threshold exceeds a preset time length or not under the condition of being greater than the preset temperature threshold; and under the condition that the preset time length is determined to be exceeded, determining that the defrosting exiting condition is reached.
Since the processes and functions implemented by the apparatus of this embodiment substantially correspond to the embodiments, principles and examples of the method shown in fig. 1 to 8, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not repeated herein.
Through a large number of tests, the technical scheme of the invention is adopted, under the condition that defrosting is required, the bypass defrosting is controlled to enter firstly, and if the time length for entering the bypass defrosting exceeds the longest continuous time length of the current bypass defrosting, the bypass defrosting is switched until the condition of exiting the defrosting is achieved. Namely, the bypass defrosting and the reversing defrosting are matched for use, so that the problem that the defrosting effect and the comfort cannot be achieved due to the fact that the bypass defrosting and the reversing defrosting are singly used can be solved, and the technical effect that the comfort can be guaranteed simultaneously under the condition that the defrosting efficiency is improved is achieved. .
According to the embodiment of the invention, a terminal corresponding to the defrosting control device is also provided. The terminal may include: the defrosting control device is described above.
Since the processes and functions implemented by the terminal of this embodiment substantially correspond to the embodiments, principles, and examples of the apparatus shown in fig. 9, reference may be made to the related descriptions in the foregoing embodiments for details which are not described in detail in the description of this embodiment, and no further description is given here.
Through a large number of tests, the technical scheme of the invention is adopted, under the condition that defrosting is required, the bypass defrosting is controlled to enter firstly, and if the time length for entering the bypass defrosting exceeds the longest continuous time length of the current bypass defrosting, the bypass defrosting is switched until the condition of exiting the defrosting is achieved. Namely, the bypass defrosting and the reversing defrosting are matched for use, so that the problem that the defrosting effect and the comfort cannot be achieved due to the fact that the bypass defrosting and the reversing defrosting are singly used can be solved, and the technical effect that the comfort can be guaranteed simultaneously under the condition that the defrosting efficiency is improved is achieved. .
According to an embodiment of the present invention, there is also provided a storage medium corresponding to the defrosting control method. The storage medium may include: the storage medium has stored therein a plurality of instructions; the plurality of instructions are used for loading and executing the defrosting control method by the processor.
Since the processing and functions implemented by the storage medium of this embodiment substantially correspond to the embodiments, principles, and examples of the methods shown in fig. 1 to 8, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not described herein again.
Through a large number of tests, the technical scheme of the invention is adopted, under the condition that defrosting is required, the bypass defrosting is controlled to enter firstly, and if the time length for entering the bypass defrosting exceeds the longest continuous time length of the current bypass defrosting, the bypass defrosting is switched until the condition of exiting the defrosting is achieved. Namely, the bypass defrosting and the reversing defrosting are matched for use, so that the problem that the defrosting effect and the comfort cannot be achieved due to the fact that the bypass defrosting and the reversing defrosting are singly used can be solved, and the technical effect that the comfort can be guaranteed simultaneously under the condition that the defrosting efficiency is improved is achieved.
According to the embodiment of the invention, a terminal corresponding to the defrosting control method is also provided. The terminal can include: a processor for executing a plurality of instructions; a memory to store a plurality of instructions; wherein the instructions are stored by the memory, and loaded and executed by the processor to perform the defrosting control method.
Since the processing and functions implemented by the terminal of this embodiment substantially correspond to the embodiments, principles, and examples of the methods shown in fig. 1 to 8, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not described herein again.
Through a large number of tests, the technical scheme of the invention is adopted, under the condition that defrosting is required, the bypass defrosting is controlled to enter firstly, and if the time length for entering the bypass defrosting exceeds the longest continuous time length of the current bypass defrosting, the bypass defrosting is switched until the condition of exiting the defrosting is achieved. Namely, the bypass defrosting and the reversing defrosting are matched for use, so that the problem that the defrosting effect and the comfort cannot be achieved due to the fact that the bypass defrosting and the reversing defrosting are singly used can be solved, and the technical effect that the comfort can be guaranteed simultaneously under the condition that the defrosting efficiency is improved is achieved.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A defrosting control method is characterized by comprising the following steps:
under the condition that defrosting is determined to be needed, controlling to enter bypass defrosting;
in the bypass defrosting process, determining whether the defrosting time length exceeds the longest duration of the current bypass defrosting and does not reach the condition of exiting defrosting; before determining whether the defrosting time length exceeds the longest duration time length of the current bypass defrosting, the method further comprises the following steps: acquiring the outer ring temperature, the outer pipe temperature, the change speed of the outer pipe temperature, the exhaust temperature and the change speed of the exhaust temperature in a preset time after the bypass defrosting is carried out; inputting the outer ring temperature, the outer tube temperature, the change speed of the outer tube temperature, the exhaust temperature and the change speed of the exhaust temperature of the bypass defrosting in a preset time into a pre-trained neural network model to obtain the longest duration of the bypass defrosting;
and under the condition that the defrosting time length is determined to exceed the longest duration of the current bypass defrosting and the defrosting exit condition is not met, controlling to enter reversing defrosting until the defrosting exit condition is met.
2. The method of claim 1, wherein determining whether defrosting is required comprises:
respectively acquiring real-time outer ring temperature and real-time outer tube temperature through a temperature sensing bulb;
determining whether the real-time outer ring temperature and the real-time outer pipe temperature are lower than a preset defrosting temperature threshold value or not;
and determining that defrosting is required under the condition that the temperature is lower than the preset defrosting temperature threshold.
3. The method of claim 1, wherein the neural network model is a three-layer BP neural network comprising: the neuron-based neural network comprises an input layer, a middle layer and an output layer, wherein the input layer is provided with 5 neurons, and the output layer is provided with 1 neuron.
4. The method of claim 1, wherein determining whether an exit defrost condition is achieved comprises:
acquiring real-time outer tube temperature;
determining whether the real-time outer tube temperature is greater than a preset temperature threshold value;
determining whether the time greater than the preset temperature threshold exceeds a preset time length or not under the condition of being greater than the preset temperature threshold;
and under the condition that the preset time length is determined to be exceeded, determining that the defrosting exiting condition is reached.
5. A defrosting control apparatus corresponding to the defrosting control method according to any one of claims 1 to 4, comprising:
the first control module is used for controlling the bypass defrosting to be carried out under the condition that the defrosting is determined to be needed;
the first determining module is used for determining whether the defrosting time length exceeds the longest duration time of the current bypass defrosting and does not reach the condition of exiting defrosting in the bypass defrosting process; before determining whether the defrosting time length exceeds the longest duration time length of the current bypass defrosting, the method further comprises the following steps: acquiring the outer ring temperature, the outer pipe temperature, the change speed of the outer pipe temperature, the exhaust temperature and the change speed of the exhaust temperature in a preset time after the bypass defrosting is carried out; inputting the outer ring temperature, the outer tube temperature, the change speed of the outer tube temperature, the exhaust temperature and the change speed of the exhaust temperature of the bypass defrosting in a preset time into a pre-trained neural network model to obtain the longest duration of the bypass defrosting;
and the second control module is used for controlling the entering of reversing defrosting until the condition of quitting defrosting is reached under the condition that the defrosting time length is determined to exceed the longest continuous time length of the current bypass defrosting and the condition of quitting defrosting is not met.
6. The apparatus of claim 5, further comprising:
the second determination module is used for respectively acquiring real-time outer ring temperature and real-time outer tube temperature through the temperature sensing bulb; determining whether the real-time outer ring temperature and the real-time outer pipe temperature are lower than a preset defrosting temperature threshold value or not; and determining that defrosting is required under the condition that the temperature is lower than the preset defrosting temperature threshold.
7. An air conditioner, comprising: the defrosting control apparatus according to any one of claims 5 to 6.
8. A storage medium having a plurality of instructions stored therein; the plurality of instructions for being loaded by a processor and executing the defrosting control method according to any one of claims 1 to 4.
9. A terminal, comprising:
a processor for executing a plurality of instructions;
a memory to store a plurality of instructions;
wherein the plurality of instructions are stored by the memory and loaded and executed by the processor to perform the defrosting control method of any one of claims 1 to 4.
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| CN112781179A (en) * | 2020-12-24 | 2021-05-11 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method and system and air conditioner |
| CN113865009B (en) * | 2021-09-15 | 2022-11-22 | 珠海格力电器股份有限公司 | Defrosting method and system, air conditioner, storage medium and electronic equipment |
| CN113970176B (en) * | 2021-11-01 | 2022-10-21 | 珠海格力电器股份有限公司 | Air conditioner heating control method, system and device based on frost inhibition neural network |
| CN114811853A (en) * | 2022-05-31 | 2022-07-29 | 珠海格力电器股份有限公司 | Defrosting method, device, system, electronic equipment and storage medium |
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