An air conditioning control method, device, air conditioner, and storage medium

Abstract

This invention relates to an air conditioning control method, device, air conditioner, and storage medium. The method includes: acquiring the refrigerant concentration in the indoor environment where the air conditioner is located during air conditioner operation; determining the corresponding leakage level of the refrigerant based on the refrigerant concentration when a refrigerant leak is determined based on the refrigerant concentration; and controlling the fresh air device in the air conditioner according to the leakage level. Therefore, this invention, by real-time monitoring of the refrigerant concentration in the indoor environment where the air conditioner is located, controls the fresh air device in the air conditioner to operate according to the determined leakage level in the event of a refrigerant leak, thereby reducing the refrigerant content in the indoor environment and ensuring the health of users in the indoor environment.

Description

Technical Field

[0001] The present invention relates to the field of air conditioning technology, and in particular to an air conditioning control method, device, air conditioner and storage medium. Background Technology

[0002] As people's living standards continue to improve, air conditioners have become an indispensable household appliance. In sweltering heat, air conditioners bring coolness; in freezing cold, they bring warmth. During air conditioner operation, refrigerant, as the energy carrier, flows in a closed-loop system to achieve temperature exchange. However, when an air conditioner runs for extended periods, refrigerant leaks can occur due to pipe fatigue or damage. The refrigerant released into the air decomposes into toxic gases, which can harm the health of users if inhaled. Summary of the Invention

[0003] In view of this, in order to solve the technical problem of refrigerant leakage affecting users' health during the operation of air conditioners, embodiments of the present invention provide an air conditioner control method, device, air conditioner and storage medium.

[0004] In a first aspect, embodiments of the present invention provide an air conditioning control method, comprising:

[0005] During the operation of the air conditioner, the refrigerant concentration in the indoor environment where the air conditioner is located is obtained;

[0006] If a refrigerant leak is determined in the air conditioner based on the refrigerant concentration, the corresponding leak level of the refrigerant is determined based on the refrigerant concentration.

[0007] The fresh air unit in the air conditioner is controlled according to the leakage level.

[0008] In an optional implementation, controlling the fresh air unit in the air conditioner according to the leakage level includes:

[0009] Based on the leakage level, the rotation speed of the fresh air unit in the air conditioner is determined; wherein, the higher the refrigerant concentration, the higher the leakage level corresponding to the refrigerant concentration; and the higher the leakage level, the higher the rotation speed corresponding to the leakage level.

[0010] Control the fresh air device to turn on; and,

[0011] After the fresh air device is turned on, the fresh air device is controlled to operate at the specified speed.

[0012] In an optional implementation, obtaining the refrigerant concentration in the indoor environment where the air conditioner is located includes:

[0013] Determine the installation location of the refrigerant sensor in the air conditioner;

[0014] Based on the installation location, determine the rotation position of the air guide plate in the air conditioner;

[0015] The air guide plate is controlled to rotate according to the rotation position in order to obtain the refrigerant concentration in the indoor environment where the air conditioner is located.

[0016] In an optional implementation, the method further includes:

[0017] When the leakage level is the highest leakage level, the compressor in the air conditioner is controlled to start; and,

[0018] After the compressor is turned on, the compressor is controlled to operate at a preset frequency; and,

[0019] The opening degree of the electronic expansion valve in the air conditioner is controlled to a preset opening degree to recover the refrigerant in the air conditioning pipes of the air conditioner into the compressor. The preset opening degree is used to characterize the minimum opening degree allowed by the electronic expansion valve.

[0020] In an optional implementation, the method further includes:

[0021] During the process of recovering the refrigerant from the air conditioning pipes in the air conditioner back into the compressor, the first operating time of the compressor is obtained;

[0022] When the first running time is determined to have reached a first preset time, the suction valve in the compressor is controlled to close; and,

[0023] Control the compressor to stop running.

[0024] In an optional implementation, after performing the step of controlling the fresh air device to operate at the stated rotation speed, the method further includes:

[0025] Based on the leakage level, determine the second preset duration corresponding to the fresh air device;

[0026] Obtain the second operating time of the fresh air device;

[0027] When it is determined that the second running time has reached the second preset time, return to the step of obtaining the refrigerant concentration of the indoor environment where the air conditioner is located;

[0028] After determining the leakage level corresponding to the refrigerant concentration, if the leakage level corresponding to the refrigerant concentration is not the highest leakage level, the leakage level corresponding to the refrigerant concentration is upgraded to complete the update of the leakage level corresponding to the refrigerant concentration.

[0029] The step of controlling the fresh air unit in the air conditioner according to the leakage level includes:

[0030] The fresh air unit in the air conditioner is controlled using the leak level corresponding to the updated refrigerant concentration.

[0031] In an optional implementation, the method further includes:

[0032] When the leakage level is the highest level, an alarm is triggered by the alarm device in the air conditioner; and / or,

[0033] When the leakage level is the highest leakage level, a fault prompt message is generated;

[0034] The fault message is pushed to the target terminal.

[0035] In a second aspect, embodiments of the present invention provide an air conditioning control device, comprising:

[0036] The acquisition module is used to acquire the refrigerant concentration of the indoor environment where the air conditioner is located during the operation of the air conditioner;

[0037] The determination module is used to determine the leakage level of the refrigerant based on the refrigerant concentration when it is determined that a refrigerant leak has occurred in the air conditioner.

[0038] The control module is used to control the fresh air device in the air conditioner according to the leakage level.

[0039] Thirdly, embodiments of the present invention provide an air conditioner, including: a processor and a memory, wherein the processor is used to execute an air conditioner control program stored in the memory to implement the air conditioner control method as described above.

[0040] Fourthly, embodiments of the present invention provide a storage medium storing one or more programs, which can be executed by one or more processors to implement the air conditioning control method described above.

[0041] This invention provides an air conditioning control method, comprising: acquiring the refrigerant concentration in the indoor environment where the air conditioner is located during air conditioner operation; determining the corresponding leakage level of the refrigerant based on the refrigerant concentration when a refrigerant leak is determined based on the refrigerant concentration; and controlling the fresh air device in the air conditioner according to the leakage level. Through this method, this invention monitors the refrigerant concentration in the indoor environment in real time, and controls the fresh air device in the air conditioner to operate according to the determined leakage level when a refrigerant leak occurs, thereby reducing the refrigerant content in the indoor environment and ensuring the health of users in the indoor environment. Attached Figure Description

[0042] Figure 1 A flowchart illustrating an air conditioning control method provided in an embodiment of the present invention;

[0043] Figure 2 This is a flowchart illustrating another air conditioning control method provided in an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of the structure of an air conditioning control device provided in an embodiment of the present invention;

[0045] Figure 4 A schematic diagram of an air conditioner provided in an embodiment of the present invention;

[0046] In the attached diagrams above:

[0047] 10. Acquisition Module; 20. Determination Module; 30. Control Module;

[0048] 400. Electronic device; 401. Processor; 402. Memory; 4021. Operating system; 4022. Application program; 403. User interface; 404. Network interface; 405. Bus system. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] To facilitate understanding of the embodiments of the present invention, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of the present invention.

[0051] refer to Figure 1 , Figure 1 This is a flowchart illustrating an air conditioning control method according to an embodiment of the present invention. The air conditioning control method provided in this embodiment includes the following steps:

[0052] S101: During the operation of the air conditioner, obtain the refrigerant concentration in the indoor environment where the air conditioner is located.

[0053] In this embodiment, a refrigerant sensor is installed on the air conditioner. This sensor is used to collect the refrigerant concentration in the indoor environment where the air conditioner is located during operation. After the air conditioner is turned on, in order to quickly determine whether a refrigerant leak has occurred, the upper and lower air guides or the left and right air guides of the air conditioner are controlled to operate within a third preset time period after the air conditioner is turned on to perform a refrigerant detection action, thereby obtaining the refrigerant concentration in the indoor environment where the air conditioner is located. Specifically, obtaining the refrigerant concentration in the indoor environment where the air conditioner is located includes:

[0054] Determine the installation location of the refrigerant sensor in the air conditioner;

[0055] Determine the rotation position of the air guide vane in the air conditioner based on the installation location;

[0056] The rotation of the air guide vane is controlled according to its position to obtain the refrigerant concentration in the indoor environment where the air conditioner is located.

[0057] When the refrigerant sensor is installed at the air inlet of the air conditioner, the upward angle of the upper and lower air guide vanes is controlled to the maximum angle α. When the refrigerant sensor is installed at the upper left of the air conditioner, the angle of the left and right air guide vanes is controlled to the left, so that the left and right air guide vanes point towards the refrigerant sensor. The third preset duration can be set according to actual needs. In this embodiment, the specific value of the third preset duration is not limited. To ensure a good user experience, the third preset duration in this embodiment can be 1 minute. After the air conditioner has been turned on for the third preset duration, the upper and lower air guide vanes or the left and right air guide vanes operate according to the user-set method or the default angle.

[0058] S102: If a refrigerant leak is determined in the air conditioner based on the refrigerant concentration, the corresponding leak level shall be determined based on the refrigerant concentration.

[0059] In this embodiment, determining whether a refrigerant leak has occurred in the air conditioner is based on the obtained refrigerant concentration. If the obtained refrigerant concentration is greater than a preset concentration, a refrigerant leak is determined; conversely, if the obtained refrigerant concentration is less than or equal to the preset concentration, no refrigerant leak is determined. To ensure the accuracy of the determination of refrigerant leakage, the refrigerant concentration is obtained once when the air conditioner is turned on, and then again every fourth preset time interval. The fourth preset time interval can be set according to actual needs; in this embodiment, the specific value of the fourth preset time interval is not limited, but in this embodiment, the fourth preset time interval can be 30 seconds. The average refrigerant concentration corresponding to the refrigerant concentration of a first preset number of consecutive cycles is determined. If the average refrigerant concentration is greater than the preset refrigerant concentration, a refrigerant leak is determined; conversely, if the average refrigerant concentration is less than or equal to the preset refrigerant concentration, no refrigerant leak is determined. The first preset number of cycles can be set according to actual needs; in this embodiment, the specific value of the first preset number of cycles is not limited. For example, the first preset number of times can be three.

[0060] Specifically, air conditioners store a pre-set correspondence between refrigerant concentration ranges and leakage levels. Therefore, if a refrigerant leak is confirmed in the air conditioner, the target refrigerant concentration range can be determined based on the refrigerant concentration. Then, the leakage level corresponding to the target refrigerant concentration range can be determined using the stored correspondence within the air conditioner. More specifically, the leakage level corresponding to the refrigerant concentration can be determined as follows:

[0061] Determine the target refrigerant concentration range to which the refrigerant concentration belongs;

[0062] The leakage level corresponding to the target refrigerant concentration range is determined from the first association relationship, which stores multiple sets of correspondences between refrigerant concentration ranges and leakage levels.

[0063] In the above, the leakage level increases with the increase of the refrigerant concentration corresponding to the refrigerant concentration range. The refrigerant concentration range can be divided according to actual needs. In this embodiment, the method of dividing the refrigerant concentration range is not limited.

[0064] S103: Control the fresh air unit in the air conditioner according to the leakage level.

[0065] In this embodiment, after determining that a refrigerant leak has occurred in the air conditioner and the corresponding leak level, the fresh air device in the air conditioner can be controlled to work. By working the fresh air device, the refrigerant in the indoor environment can be removed, thereby reducing the refrigerant concentration in the indoor environment and ensuring the health of users in the indoor environment.

[0066] Specifically, in step S103, the fresh air unit in the air conditioning system is controlled according to the leakage level, including:

[0067] The rotation speed of the fresh air unit in the air conditioner is determined according to the leakage level; wherein, the higher the refrigerant concentration, the higher the leakage level; and the higher the leakage level, the higher the rotation speed.

[0068] Control the fresh air system to turn on; and,

[0069] After the fresh air device is turned on, control the fresh air device to operate according to the speed.

[0070] In this embodiment, the corresponding speed of the fresh air device in the air conditioner is preset for different leakage levels. The higher the leakage level, the more refrigerant is leaked from the air conditioner. Therefore, it is necessary to increase the speed of the fresh air device in the air conditioner in order to reduce the refrigerant concentration in the indoor environment in a timely manner.

[0071] Among them, the above-mentioned fresh air control device operates according to the rotation speed, including:

[0072] When the leakage level is the first level, the fresh air unit is controlled to operate at the first speed; or,

[0073] When the leakage level is the second leakage level, the fresh air unit is controlled to operate at the second speed, where the second leakage level is higher than the first leakage level, and the second speed is higher than the first speed; or...

[0074] When the leakage level is the third leakage level, the fresh air control unit is operated at the third speed. The third leakage level is higher than the second leakage level, and the third speed is higher than the second speed.

[0075] Specifically, the first, second, and third rotational speeds can be set according to actual needs. This embodiment does not limit the specific values ​​of the first, second, and third rotational speeds. It should be noted that the first, second, and third rotational speeds must increase with the increase of the leakage level. For example, the first rotational speed can be 600 rpm, the second rotational speed can be 900 rpm, and the third rotational speed can be 1200 rpm.

[0076] More specifically, when the leakage level is the first leakage level (lowest leakage level), it is determined that the refrigerant in the air conditioner is leaking at a low dose. In this case, the fresh air system in the air conditioner is activated, and after activation, it operates at a first speed, circulating indoor and outdoor air to reduce the refrigerant concentration in the indoor environment. When the leakage level is the second leakage level (intermediate leakage level), it is determined that the refrigerant in the air conditioner is leaking at a medium dose. In this case, the fresh air system in the air conditioner is activated, and after activation, it operates at a second speed, circulating indoor and outdoor air to reduce the refrigerant concentration in the indoor environment. When the leakage level is the third leakage level (highest leakage level), it is determined that the refrigerant in the air conditioner is leaking at a high dose. In this case, the fresh air system in the air conditioner is activated, and after activation, it operates at a second speed, circulating indoor and outdoor air to reduce the refrigerant concentration in the indoor environment.

[0077] In this embodiment, in the event of refrigerant leakage in the air conditioner, to reduce refrigerant waste, when the determined leakage level is the third leakage level (the highest leakage level), the air conditioner control method provided in this embodiment further includes the following steps:

[0078] When the leakage level is the highest level, the compressor in the air conditioner is controlled to start; and,

[0079] After the compressor is turned on, the compressor is controlled to operate at a preset frequency; and,

[0080] The opening degree of the electronic expansion valve in the air conditioner is controlled to a preset opening degree to recover the refrigerant in the air conditioning pipes into the compressor. The preset opening degree is used to characterize the minimum opening degree allowed by the electronic expansion valve.

[0081] In the above description, the preset frequency of the compressor can be set according to actual needs. This embodiment does not limit the specific value of the compressor. For example, the preset frequency of the compressor can be 60Hz, and the preset opening degree of the electronic expansion valve can be 0 degrees. During the operation of the fresh air unit in the air conditioner, the compressor can be controlled to operate, and the electronic expansion valve can be controlled to close. Since the compressor's suction valve is normally open during operation, the refrigerant in the air pipeline can enter the compressor's compression chamber through the suction valve.

[0082] Specifically, after the refrigerant in the air conditioning pipes has been recovered, continuing to recover refrigerant will cause high pressure in the compressor's discharge pipe, leading to a high-pressure protection failure in the compressor. To prevent the above problem, the air conditioning control method provided in this embodiment further includes the following steps:

[0083] During the process of recovering refrigerant from the air conditioning pipes in the air conditioner back into the compressor, the first operating time of the compressor is obtained;

[0084] When the first running time reaches the first preset time, the suction valve in the compressor is closed; and,

[0085] Control the compressor to stop running.

[0086] Specifically, the first preset duration can be set according to actual needs, and the specific value of the first preset duration is not limited in this embodiment. For example, the first preset duration can be 5 minutes. When the first running time reaches the first preset duration, it indicates that the refrigerant recovery in the air conditioning pipeline is complete. At this time, the suction valve can be closed and the compressor can be stopped to lock the recovered refrigerant in the compressor cavity. It should be noted that if it is determined that the first running time has not reached the first preset duration, the step of obtaining the first running time of the compressor can be returned until it is finally determined that the first running time has reached the first preset duration.

[0087] In this embodiment, when the leakage level is the third leakage level (the highest leakage level), in order to enable relevant personnel to be aware of the air conditioner malfunction in a timely manner, the air conditioner control method provided in this embodiment further includes the following steps:

[0088] When the leakage level is the highest level, an alarm will be triggered via the alarm device in the air conditioner; and / or,

[0089] When the leakage level is the highest leakage level, a fault prompt message is generated;

[0090] The fault message is pushed to the target terminal.

[0091] Specifically, the alarm device in the air conditioner can be a voice device or an audible and visual device. When the alarm device is a voice device, it can provide voice alarm prompts; when the alarm device is an audible and visual device, it can provide audible and visual alarm prompts. The target terminal can be a mobile phone terminal or a computer terminal, which is connected to the air conditioner so that after the air conditioner generates a fault prompt message, the fault prompt message is pushed to the target terminal.

[0092] In this embodiment, after controlling the compressor to operate at the speed corresponding to the leakage level, it can be determined whether the refrigerant concentration in the indoor environment has been reduced through the operation of the fresh air device, as follows:

[0093] Determine the second preset duration corresponding to the fresh air unit based on the leakage level;

[0094] Obtain the second operating time of the fresh air system;

[0095] When it is determined that the second running time has reached the second preset time, return to the step of obtaining the refrigerant concentration of the indoor environment where the air conditioner is located in step S101.

[0096] After determining the leakage level corresponding to the refrigerant concentration, if the leakage level corresponding to the refrigerant concentration is not the highest leakage level, the leakage level corresponding to the refrigerant concentration will be upgraded.

[0097] This is to update the leak level corresponding to the refrigerant concentration.

[0098] Specifically, the air conditioner pre-sets and stores second preset durations corresponding to different leakage levels. These second preset durations characterize the duration the fresh air unit can operate each time under different leakage levels. The second preset duration can be set according to actual needs; in this embodiment, the specific value of the second preset duration is not limited. It should be noted that the second preset duration corresponding to different leakage levels must increase with the increase of the leakage level. That is, the second preset duration corresponding to the third leakage level is the largest, the second preset duration corresponding to the first leakage level is the smallest, and the second preset duration corresponding to the second leakage level lies between the second preset duration corresponding to the first leakage level and the second preset duration corresponding to the third leakage level.

[0099] More specifically, when the second operating time of the acquired fresh air unit reaches the second preset time, it signifies the end of one round of fresh air unit control. Return to step S101 for refrigerant circulation control. During refrigerant circulation control, the purposes are twofold: first, to determine if the refrigerant concentration in the indoor environment is low, and to stop the fresh air unit from operating; second, to determine if the refrigerant concentration in the indoor environment is still too high, and to continue operating the fresh air unit to quickly reduce the refrigerant concentration. After returning to step S101, if it is determined based on the acquired refrigerant concentration that there is no refrigerant leak in the air conditioner (indicating that the refrigerant concentration in the indoor environment has been reduced through the fresh air unit), then the fresh air unit can be stopped. If it is determined based on the acquired refrigerant concentration that there is a refrigerant leak in the air conditioner, the corresponding leak level is determined based on the refrigerant concentration. If the leak level is not the highest leak level (i.e., the third leak level), a higher leak level is used to update it. In other words, for example, when the leak level is the first leak level, the first leak level is updated using the second leak level; when the leak level is the second leak level, the second leak level is updated using the third leak level; and when the leak level is the third leak level, since the third leak level is the highest leak level, there is no need to update the third leak level. It should be noted that when performing refrigerant circulation control, if refrigerant recovery control has already been completed, then after determining that the leak level is the third leak level, there is no need to perform refrigerant recovery control again.

[0100] In the above-mentioned process of refrigerant circulation control, in order to ensure the accuracy of control, it can be determined that no refrigerant leakage has occurred in the air conditioner by means of the following methods, as follows;

[0101] Obtain the refrigerant concentration in the indoor environment for a second consecutive preset number of times;

[0102] Determine the average refrigerant concentration for the second preset number of times;

[0103] If the average refrigerant concentration is less than or equal to the preset refrigerant concentration, it is determined that there is no refrigerant leak in the air conditioner.

[0104] The second preset number of times can be set according to actual needs, and the specific value of the second preset number of times is not limited in this embodiment. For example, the second preset number of times can be six times. When the leakage level determined by the air conditioning control includes the third leakage level, and when the refrigerant circulation control determines that no refrigerant leakage has occurred in the air conditioner, the compressor's suction valve is opened, and the air conditioner operates according to the working mode set in the air conditioner.

[0105] In this embodiment, after updating the leakage level corresponding to the refrigerant concentration, step S103 controls the fresh air device in the air conditioner according to the leakage level, including:

[0106] The leak level corresponding to the updated refrigerant concentration is used to control the fresh air unit in the air conditioner.

[0107] Specifically, during the refrigerant circulation control process, after updating the leakage level corresponding to the refrigerant concentration, the rotation speed of the fresh air unit corresponding to the updated leakage level is determined, and the fresh air unit is controlled to operate at the aforementioned rotation speed.

[0108] This invention provides an air conditioning control method that monitors the refrigerant concentration in the indoor environment in real time. In the event of a refrigerant leak, the method controls the fresh air device in the air conditioner to operate according to the determined leak level, thereby reducing the refrigerant content in the indoor environment and ensuring the health of users in the indoor environment.

[0109] refer to Figure 2 Below is an example illustrating the entire control process of an air conditioner in the event of a refrigerant leak:

[0110] When the air conditioner is powered on, within 1 minute of the fresh air system being turned on, the air conditioner's upper, lower, left, and right air guides will perform a refrigerant detection action. After 1 minute of the fresh air system being turned on, the air guides will operate according to the settings on the remote control or at the default angle.

[0111] The refrigerant sensor first detects the refrigerant concentration when the fresh air unit is turned on, and then detects it every 30 seconds. If the average refrigerant concentration N of three consecutive detections is greater than n0, it is determined that there is a refrigerant leak. If the average refrigerant concentration N of three consecutive detections is less than or equal to n0, it is determined that there is no refrigerant leak.

[0112] The level of refrigerant leakage is determined by the average concentration of three consecutive leaks. The levels are divided into three grades: U1, U2, and U3, which correspond to the refrigerant concentration range from low to high, i.e., U1 < U2 < U3.

[0113] When a refrigerant concentration N corresponding to level U1 is detected, it is determined to be a low-dose leak. At this time, the fresh air unit in the air conditioner is turned on at setting F1. By circulating indoor and outdoor air, the refrigerant concentration in the room is reduced. After running at level U1 for time T1, the refrigerant concentration is reassessed. When N ≤ n0 is detected, refrigerant leak control is stopped; when N > n0 is detected, refrigerant circulation control is executed.

[0114] When the refrigerant concentration N corresponds to U2 level, it is judged as a medium-dose leak. At this time, the fresh air unit in the air conditioner is turned on, and the fresh air unit is set to F2. By circulating indoor and outdoor air, the refrigerant concentration in the room is reduced. After running at U2 level for T2 time, the refrigerant concentration value is re-evaluated. When N ≤ n0 is detected, refrigerant leak control is stopped; when N > n0 is detected, refrigerant circulation control is executed.

[0115] When a refrigerant concentration N corresponding to U3 level is detected, a large-volume leak is identified. At this point, the fresh air system in the air conditioner is activated at setting F3. Through indoor and outdoor air circulation, the refrigerant concentration in the room is reduced. Simultaneously, the air conditioner initiates refrigerant recovery control, the compressor starts running at a frequency set to M, and the electronic expansion valve opening is P0 (closed to its minimum). After the compressor runs for T4 hours, the suction valve closes (the suction valve is normally open; after closing, the refrigerant leak indicator must be cleared before reopening), refrigerant recovery control is paused, and the compressor stops. (In U3 level, refrigerant recovery control is only executed once; when the next cycle is U3 level, refrigerant recovery is not required again). After running for T3 hours in U3 level, the refrigerant concentration is reassessed. When N ≤ n0 is detected, refrigerant leak control stops, and a corresponding refrigerant leak fault is indicated; when N > n0 is detected, refrigerant circulation control is executed.

[0116] During the refrigerant circulation control process, when the refrigerant N > n0 is re-detected, the corresponding level of refrigerant concentration is determined, and the level is UX. When the next refrigerant circulation control is performed, UX+1 is used to enter the level determination and execution. (That is, when N is determined to be level U1, the next round of refrigerant leakage control will execute level U2 action, and Umax = U3).

[0117] When the average refrigerant concentration N≤n0 is detected 6 times consecutively, it is determined that the room refrigerant content is not excessive, the fresh air device is stopped, and after the U3 level is determined, the refrigerant leak sign is automatically cleared, and the air intake valve is opened.

[0118] refer to Figure 3 , Figure 3 This is a schematic diagram of an air conditioning control device provided in an embodiment of the present invention. The air conditioning control device provided in this embodiment includes: an acquisition module 10, a determination module 20, and a control module 30. The acquisition module 10 is used to acquire the refrigerant concentration in the indoor environment where the air conditioner is located during air conditioning operation; the determination module 20 is used to determine the leakage level of the refrigerant based on the refrigerant concentration if a refrigerant leak is determined to occur in the air conditioner; the control module 30 is used to control the fresh air device in the air conditioner according to the leakage level.

[0119] In this embodiment, the control module 30 is further configured to:

[0120] Based on the leakage level, the rotation speed of the fresh air unit in the air conditioner is determined; wherein, the higher the refrigerant concentration, the higher the leakage level corresponding to the refrigerant concentration; and the higher the leakage level, the higher the rotation speed corresponding to the leakage level.

[0121] Control the fresh air device to turn on; and,

[0122] After the fresh air device is turned on, the fresh air device is controlled to operate at the specified speed.

[0123] In this embodiment, the acquisition module 10 is further configured to:

[0124] Determine the installation location of the refrigerant sensor in the air conditioner;

[0125] Based on the installation location, determine the rotation position of the air guide plate in the air conditioner;

[0126] The air guide plate is controlled to rotate according to the rotation position in order to obtain the refrigerant concentration in the indoor environment where the air conditioner is located.

[0127] In this embodiment, the control module 30 is further configured to:

[0128] When the leakage level is the highest leakage level, the compressor in the air conditioner is controlled to start; and,

[0129] After the compressor is turned on, the compressor is controlled to operate at a preset frequency; and,

[0130] The opening degree of the electronic expansion valve in the air conditioner is controlled to a preset opening degree to recover the refrigerant in the air conditioning pipes of the air conditioner into the compressor. The preset opening degree is used to characterize the minimum opening degree allowed by the electronic expansion valve.

[0131] In this embodiment, the control module 30 is further configured to:

[0132] During the process of recovering the refrigerant from the air conditioning pipes in the air conditioner back into the compressor, the first operating time of the compressor is obtained;

[0133] When the first running time is determined to have reached a first preset time, the suction valve in the compressor is controlled to close; and,

[0134] Control the compressor to stop running.

[0135] The air conditioning control device provided in this embodiment further includes: an update module, which is used for:

[0136] Based on the leakage level, determine the second preset duration corresponding to the fresh air device;

[0137] Obtain the second operating time of the fresh air device;

[0138] When it is determined that the second running time has reached the second preset time, return to the step of obtaining the refrigerant concentration of the indoor environment where the air conditioner is located;

[0139] After determining the leakage level corresponding to the refrigerant concentration, if the leakage level corresponding to the refrigerant concentration is not the highest leakage level, the leakage level corresponding to the refrigerant concentration is upgraded to complete the update of the leakage level corresponding to the refrigerant concentration.

[0140] In this embodiment, the control module 30 is further configured to:

[0141] The fresh air unit in the air conditioner is controlled using the leak level corresponding to the updated refrigerant concentration.

[0142] The air conditioning control device provided in this embodiment further includes: a fault indication module, which is used for:

[0143] When the leakage level is the highest level, an alarm is triggered by the alarm device in the air conditioner; and / or,

[0144] When the leakage level is the highest leakage level, a fault prompt message is generated;

[0145] The fault message is pushed to the target terminal.

[0146] This embodiment provides an air conditioning control device that monitors the refrigerant concentration in the indoor environment in real time. In the event of a refrigerant leak, the device controls the fresh air unit in the air conditioner to operate according to the determined leak level, thereby reducing the refrigerant content in the indoor environment and ensuring the health of users in the indoor environment.

[0147] Figure 4This is a schematic diagram of the structure of an air conditioner provided in an embodiment of the present invention. Figure 4 The air conditioner 400 shown includes: at least one processor 401, a memory 402, at least one network interface 404, and other user interfaces 403. The various components in the air conditioner 400 are coupled together via a bus system 405. It is understood that the bus system 405 is used to implement communication between these components. In addition to a data bus, the bus system 405 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in… Figure 4 The general designated all buses as Bus System 405.

[0148] The user interface 403 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

[0149] It is understood that the memory 402 in the embodiments of the present invention can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 402 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0150] In some implementations, memory 402 stores elements, executable units or data structures, or subsets thereof, or extended sets thereof: operating system 4021 and application program 4022.

[0151] The operating system 4021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 4022 includes various applications, such as a media player and a browser, used to implement various application functions. The program implementing the method of this embodiment can be included in the application program 4022.

[0152] In this embodiment of the invention, by calling the program or instructions stored in the memory 402, specifically the program or instructions stored in the application program 4022, the processor 401 is used to execute the method steps provided in each method embodiment, such as: during the operation of the air conditioner, obtaining the refrigerant concentration of the indoor environment where the air conditioner is located; if it is determined that the refrigerant in the air conditioner has leaked according to the refrigerant concentration, determining the corresponding leakage level of the refrigerant according to the refrigerant concentration; and controlling the fresh air device in the air conditioner according to the leakage level.

[0153] The methods disclosed in the above embodiments of the present invention can be applied to processor 401, or implemented by processor 401. Processor 401 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 401 or by instructions in the form of software. The processor 401 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present invention can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software units in the decoding processor. The software units may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 402. Processor 401 reads the information in memory 402 and, in conjunction with its hardware, completes the steps of the above method.

[0154] It is understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or combinations thereof.

[0155] For software implementation, the techniques described herein can be implemented by units that perform the functions described herein. The software code can be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

[0156] The air conditioner provided in this embodiment can be as follows: Figure 4 The air conditioner shown can perform the following functions: Figure 1-2 All steps of the central air conditioning control method, thereby achieving Figure 1-2 For details on the technical effects of the air conditioning control method shown, please refer to [link / reference]. Figure 1-2 The relevant descriptions are presented concisely and will not be elaborated upon here.

[0157] This invention also provides a storage medium (computer-readable storage medium). This storage medium stores one or more programs. The storage medium may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid-state drive; the memory may also include combinations of the above types of memory.

[0158] One or more programs in the storage medium can be executed by one or more processors to implement the air conditioning control method described above, which is executed on the air conditioning control device side.

[0159] The processor is used to execute the air conditioning control program stored in the memory to implement the following steps of the air conditioning control method executed on the air conditioning control device side: during the operation of the air conditioner, obtaining the refrigerant concentration of the indoor environment where the air conditioner is located; if it is determined that the refrigerant in the air conditioner has leaked based on the refrigerant concentration, determining the corresponding leakage level of the refrigerant based on the refrigerant concentration; and controlling the fresh air device in the air conditioner based on the leakage level.

[0160] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0161] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0162] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An air conditioning control method, characterized in that, include: During the operation of the air conditioner, the refrigerant concentration of the indoor environment where the air conditioner is located is obtained; wherein, the refrigerant concentration can be obtained by the following method: within a third preset time after the air conditioner is turned on, the air guide plate in the air conditioner is controlled to rotate according to the rotation position of the air guide plate in the air conditioner, so as to obtain the refrigerant concentration of the indoor environment where the air conditioner is located, wherein the rotation position is determined according to the installation position of the refrigerant sensor in the air conditioner; Determine the average refrigerant concentration corresponding to the refrigerant concentration for a first preset number of consecutive times, and determine that the refrigerant in the air conditioner has leaked when the average refrigerant concentration is greater than the preset refrigerant concentration; If it is determined that there is a refrigerant leak in the air conditioner, the corresponding leak level of the refrigerant shall be determined according to the refrigerant concentration; The fresh air unit in the air conditioner is controlled according to the leakage level.

2. The method according to claim 1, characterized in that, The step of controlling the fresh air unit in the air conditioner according to the leakage level includes: Based on the leakage level, the rotation speed of the fresh air unit in the air conditioner is determined; wherein, the higher the refrigerant concentration, the higher the leakage level corresponding to the refrigerant concentration; and the higher the leakage level, the higher the rotation speed corresponding to the leakage level. Control the fresh air device to turn on; and, After the fresh air device is turned on, it is controlled to operate at the specified speed.

3. The method according to claim 2, characterized in that, The method further includes: When the leakage level is the highest leakage level, the compressor in the air conditioner is controlled to start; and, After the compressor is turned on, the compressor is controlled to operate at a preset frequency; and, The opening degree of the electronic expansion valve in the air conditioner is controlled to a preset opening degree to recover the refrigerant in the air conditioning pipes of the air conditioner into the compressor. The preset opening degree is used to characterize the minimum opening degree allowed by the electronic expansion valve.

4. The method according to claim 3, characterized in that, The method further includes: During the process of recovering the refrigerant from the air conditioning pipes in the air conditioner back into the compressor, the first operating time of the compressor is obtained; When the first running time is determined to have reached a first preset time, the suction valve in the compressor is controlled to close; and, Control the compressor to stop running.

5. The method according to claim 2, characterized in that, After executing the step of controlling the fresh air device to operate at the specified speed, the method further includes: Based on the leakage level, determine the second preset duration corresponding to the fresh air device; Obtain the second operating time of the fresh air device; When it is determined that the second running time has reached the second preset time, return to the step of obtaining the refrigerant concentration of the indoor environment where the air conditioner is located; After determining the leakage level corresponding to the refrigerant concentration, if the leakage level corresponding to the refrigerant concentration is not the highest leakage level, the leakage level corresponding to the refrigerant concentration is upgraded to complete the update of the leakage level corresponding to the refrigerant concentration. The step of controlling the fresh air unit in the air conditioner according to the leakage level includes: The fresh air unit in the air conditioner is controlled using the leak level corresponding to the updated refrigerant concentration.

6. The method according to claim 3, characterized in that, The method further includes: When the leakage level is the highest level, an alarm is triggered by the alarm device in the air conditioner; and / or, When the leakage level is the highest leakage level, a fault prompt message is generated; The fault message is pushed to the target terminal.

7. An air conditioning control device, characterized in that, include: The acquisition module is used to acquire the refrigerant concentration of the indoor environment where the air conditioner is located during the operation of the air conditioner; wherein, the refrigerant concentration can be acquired by the following method: within a third preset time after the air conditioner is turned on, the air guide plate is controlled to rotate according to the rotation position of the air guide plate in the air conditioner to acquire the refrigerant concentration of the indoor environment where the air conditioner is located, wherein the rotation position is determined according to the installation position of the refrigerant sensor in the air conditioner; The determining module is used to determine the average refrigerant concentration corresponding to the refrigerant concentration for a first preset number of consecutive times; when the average refrigerant concentration is greater than the preset refrigerant concentration, it determines that the refrigerant in the air conditioner has leaked; and when it is determined that the refrigerant in the air conditioner has leaked, it determines the leakage level corresponding to the refrigerant based on the refrigerant concentration. The control module is used to control the fresh air device in the air conditioner according to the leakage level.

8. An air conditioner, characterized in that, include: A processor and a memory, the processor being configured to execute an air conditioning control program stored in the memory to implement the air conditioning control method according to any one of claims 1 to 6.

9. A storage medium, characterized in that, The storage medium stores one or more programs, which can be executed by one or more processors to implement the air conditioning control method according to any one of claims 1 to 6.

Images