Control Method, Device and Storage Medium of Air Conditioner

Abstract

The present invention provides a control method, device and storage medium for an air conditioner. The control method of the air conditioner includes the following steps: after the air conditioner is started, obtain the first outdoor temperature and the second outdoor temperature before the air conditioner stopped last time; obtain the first temperature difference between the first outdoor temperature and the second outdoor temperature; obtain a first preset difference, and control the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference. In the control method of the air conditioner provided by the present invention, according to the first temperature difference, it is judged whether the air conditioner can be regarded as a first normal start, and according to whether it is the first normal start, it is controlled whether the compressor needs to perform a delayed start, avoiding the need for the compressor of the air conditioner to perform a delayed start every time it is turned on.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner control, and particularly to a control method, device and storage medium for an air conditioner. Background Art

[0002] The power outage compensation function is a function of the working state of an air conditioner. When a power outage occurs in the power supply line, the air conditioner will memorize the working state of the air conditioner before the power outage. When the power comes back, the air conditioner will automatically work according to the memorized state without manual startup by a person.

[0003] In areas with unstable power supply, when the air conditioner model has the power outage compensation function, the compressor will frequently start. To prevent the compressor from starting and stopping frequently, in the prior art, the compressor of the air conditioner starts only after the air conditioner has been powered on and running for 3 minutes. However, the power outage compensation function causes the compressor to fail to start working normally when the air conditioner starts normally or starts again after a long power outage duration, and there will still be a delayed start, reducing the cooling or heating efficiency of the air conditioner and unable to quickly enter the working state. Summary of the Invention

[0004] The present invention provides a control method, device and storage medium for an air conditioner to solve the problem of delayed start of the compressor and achieve the effect of the air conditioner starting normally and quickly entering the working state.

[0005] The present invention provides a control method for an air conditioner, including the following steps:

[0006] After the air conditioner starts, obtain the first outdoor temperature and the second outdoor temperature of the air conditioner before the last shutdown.

[0007] Obtain the first temperature difference between the first outdoor temperature and the second outdoor temperature.

[0008] Obtain a first preset difference, and control the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference.

[0009] According to the control method for an air conditioner provided by the present invention, the step of obtaining a first preset difference and controlling the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference includes:

[0010] When the first temperature difference is greater than the first preset difference, control the compressor to start directly.

[0011] According to the control method for an air conditioner provided by the present invention, the step of obtaining a first preset difference and controlling the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference further includes:

[0012] When the temperature difference is less than the first preset difference, obtain the first exhaust temperature and the second exhaust temperature before the air conditioner shuts down;

[0013] Obtain a second temperature difference between the first exhaust temperature and the second exhaust temperature;

[0014] Obtain a second preset difference, and control the compressor of the air conditioner to start according to the relationship between the second temperature difference and the second preset difference.

[0015] According to the control method of the air conditioner provided by the present invention, the steps of obtaining the second preset difference and controlling the compressor of the air conditioner to start according to the relationship between the second temperature difference and the second preset difference include:

[0016] When the second temperature difference is greater than the second preset difference, control the compressor to start directly.

[0017] According to the control method of the air conditioner provided by the present invention, the steps of obtaining the second preset difference and controlling the compressor of the air conditioner to start according to the relationship between the second temperature difference and the second preset difference further include:

[0018] When the second temperature difference is less than the second preset difference, control the compressor to start after delaying for a first preset time.

[0019] According to the control method of the air conditioner provided by the present invention, the method for setting the second preset difference includes the following steps:

[0020] Control the air conditioner to run in a test mode for a second preset time, and obtain a first test exhaust temperature;

[0021] After stopping the test mode, obtain a second test exhaust temperature after the compressor pressure is balanced;

[0022] Obtain an exhaust temperature difference between the first test exhaust temperature and the second test exhaust temperature;

[0023] Set the second preset difference according to the exhaust temperature difference.

[0024] According to the control method of the air conditioner provided by the present invention, the method for setting the first preset difference includes the following steps:

[0025] Obtain multiple ambient temperatures, and obtain the maximum temperature and the minimum temperature among them;

[0026] Obtain an ambient temperature difference between the maximum temperature and the minimum temperature;

[0027] Set the first preset difference according to the ambient temperature difference.

[0028] Before the steps of obtaining the first outdoor temperature and the second outdoor temperature before the air conditioner stops operating according to the control method of the air conditioner provided by the present invention, the following steps are further included:

[0029] Obtain the power supply state of the air conditioner;

[0030] When the air conditioner is normally powered, obtain the first outdoor temperature and the second outdoor temperature;

[0031] When the air conditioner is unstably powered, control the compressor to start after delaying for a first preset time.

[0032] The present invention also provides a control device for an air conditioner, including a memory, a processor, and a control program for the air conditioner stored on the memory and executable on the processor. The control program for the air conditioner is configured to implement the control method of the air conditioner according to any one of the above.

[0033] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the control method of the air conditioner according to any one of the above.

[0034] In the control method of the air conditioner provided by the present invention, after the air conditioner starts, obtain the first outdoor temperature at this time and the second outdoor temperature before the air conditioner stops operating. According to the first temperature difference, judge whether the environment where the air conditioner is located has changed at this time, and further judge whether the air conditioner will continue the state during the previous operation and the interval between the previous operation, so as to judge whether the air conditioner can be regarded as a first normal start. According to whether it is the first normal start, control whether the compressor needs to start with a delay, avoiding the compressor of the air conditioner needing to start with a delay every time it is turned on, and can accurately obtain whether the start state of the air conditioner is normal. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a flowchart of an embodiment of the control method of the air conditioner provided by the present invention;

[0037] Figure 2 It is a connection block diagram of an embodiment of the control device provided by the present invention. Detailed Embodiments

[0038] To make the objectives, technical solutions and advantages of the present invention more clear, the following will clearly and completely describe the technical solutions in the present invention with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts fall within the scope of protection of the present invention.

[0039] Please refer to Figure 1 , the present invention provides a control method for an air conditioner, including the following steps:

[0040] S10. After the air conditioner is started, obtain the first outdoor temperature and the second outdoor temperature before the air conditioner stopped last time;

[0041] S20. Obtain the first temperature difference between the first outdoor temperature and the second outdoor temperature;

[0042] S30. Obtain a first preset difference, and control the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference.

[0043] In the control method for an air conditioner provided by the present invention, after the air conditioner is started, obtain the first outdoor temperature at this time and the second outdoor temperature before the air conditioner stopped, and judge whether the environment where the air conditioner is located has changed according to the first temperature difference, and further judge whether the air conditioner will continue the state during the last operation and the interval from the last operation, so as to judge whether the air conditioner is started normally for the first time. According to whether it is started normally for the first time, control whether the compressor needs to be started with a time delay, avoiding the need for the compressor of the air conditioner to be started with a time delay every time it is turned on, and can accurately obtain whether the start state of the air conditioner is normal.

[0044] Specifically, in this embodiment, step S30 includes:

[0045] S31. When the first temperature difference is greater than the first preset difference, control the compressor to start directly.

[0046] In this embodiment, when the first temperature difference is greater than the first preset difference, it can be indicated that the interval time after the air conditioner stops is much longer than the time for the compressor to self-balance the pressure. At this time, it can be regarded that the air conditioner is starting for the first time in a completely stable state, and the first start of the air conditioner does not require pressure balancing of the compressor; moreover, the temperature change of the environment proves that the air conditioner does not need to directly repeat the working mode before the last shutdown and does not need to enter the power failure compensation link. After starting, the air conditioner starts directly and continues to receive the temperature control signal. The compressor can start normally and will not cause excessive impact pressure on the compressor due to simply repeating the previous process.

[0047] On the other hand, step S30 further includes:

[0048] S32. When the temperature difference is less than the preset difference, obtain the first exhaust temperature and the second exhaust temperature before the air conditioner stops;

[0049] S33. Obtain the second temperature difference between the first exhaust temperature and the second exhaust temperature;

[0050] S34. Obtain a second preset difference, and control the compressor of the air conditioner to start according to the relationship between the second temperature difference and the second preset difference.

[0051] When the first temperature difference is less than the first preset difference, the ambient temperature around the air conditioner has not changed significantly, and the air conditioner cannot be determined to start in a preset state or for compensation after a power failure. At this time, the air conditioner will enter the power failure compensation state or the protection operation state of the compressor, that is, delayed start. Even if the air conditioner is in the power failure compensation state, as long as the pressure balance of the compressor is ensured. In this embodiment, the difference in the exhaust temperature of the air conditioner is obtained, and through the difference in the exhaust temperature, it is judged whether the compressor has completed cooling and pressure balance, and then it is judged whether delayed start is required.

[0052] Specifically, in this embodiment, step S34 includes:

[0053] S341. When the second temperature difference is greater than the second preset difference, control the compressor to start directly.

[0054] In this embodiment, when the second temperature difference is greater than the second preset difference, it indicates that the compressor has completed internal pressure balance and compressor cooling. Even if the air conditioner starts again after a power failure, the compressor does not need to perform delayed balance again. While the compressor is exhausting and cooling down, it has completed pressure balance and can start directly, facilitating the air conditioner to quickly enter the temperature control mode.

[0055] Similarly, in this embodiment, step S34 further includes:

[0056] S342. When the second temperature difference is less than the second preset difference, control the compressor to start after delaying for a first preset time.

[0057] When the second temperature difference is less than the second preset difference, at this time, the inside of the air conditioner has not completed cooling yet. Compared with the previous shutdown, the compressor has not completed complete heat dissipation cooling. When receiving a start signal, it needs to be delayed for a period of time before starting, so as to ensure the safe start of the compressor.

[0058] It should be noted that there are various implementation manners for the first preset time. The setting of the first preset time is based on the average balanced cooling time of the compressor and varies according to the type and operating scenario of the air conditioner. Specific limitations are not made here. In this embodiment, the first preset time is three minutes, which is set in advance by the staff.

[0059] On the other hand, in the embodiment provided by the present invention, the setting method of the second preset difference includes the following steps:

[0060] Control the air conditioner to operate in a test mode for a second preset time, and obtain a first test exhaust temperature;

[0061] After stopping the test mode, obtain a second test exhaust temperature after the pressure of the compressor is balanced;

[0062] Obtain the exhaust temperature difference between the first test exhaust temperature and the second test exhaust temperature;

[0063] Set the second preset difference according to the exhaust temperature difference.

[0064] After the air conditioner is turned off, the compressor can balance the pressures at the suction port and the exhaust port by itself and complete the heat dissipation of the compressor. In this embodiment, the temperature difference when the compressor completes the balance is obtained, and whether the compressor has completed the pressure balance is judged according to the temperature difference, which has stronger applicability and accuracy, and avoids setting all air conditioners to the same standard, resulting in incorrect control of the compressor to start directly or with a delay.

[0065] On the other hand, in this embodiment, the setting method of the first preset difference includes the following steps:

[0066] Obtain multiple ambient temperatures, and obtain the maximum temperature and the minimum temperature among them;

[0067] Obtain the ambient temperature difference between the maximum temperature and the minimum temperature;

[0068] Set the first preset difference according to the ambient temperature difference.

[0069] In this embodiment, the first preset difference is used to judge the degree of environmental change of the air conditioner. When the temperature difference is too large, it indicates that the start interval time of the air conditioner is too long, and any parameters before the last stop do not need to be referred to. When it is less than the first preset difference, when the compressor starts, the parameters before the last stop need to be referred to.

[0070] The first preset difference is set according to the ambient temperature difference, and the demand state of the air conditioner can be comprehensively controlled, and the usage time period and time difference of the air conditioner can be roughly judged, which is convenient for judging whether the air conditioner can be regarded as starting for the first time.

[0071] On the other hand, before step S10, it further includes:

[0072] S01. Obtain the power supply state of the air conditioner;

[0073] S02. When the air conditioner is normally powered, obtain the first outdoor temperature and the second outdoor temperature;

[0074] S03. When the air conditioner is unstably powered, control the compressor to start after delaying for a first preset time.

[0075] In this embodiment, before judging whether the air conditioner can be regarded as starting for the first time, it is necessary to judge the power supply state of the air conditioner. When the air conditioner is unstably powered, the compressor cannot start directly, but enters a delayed start program, avoiding frequent on-off of the compressor, and avoiding turning off and starting again when the compressor has not yet had an obvious impact on the exhaust temperature, resulting in the subsequent judgment criteria being unable to accurately judge the state of the compressor.

[0076] It should be noted that there are various ways to judge the power supply state. For example, detecting the mutation or stability of the level supplied to the air conditioner is not specifically limited in the present invention, as long as it can detect whether the air conditioner can work stably.

[0077] The embodiment of the present invention also provides a controller, Figure 2 Illustrates the schematic diagram of the physical structure of the controller, as Figure 2As shown, the controller may include: a processor 1001, a communications interface 1002, a memory 1003, and a communication bus 1004. Among them, the processor 1001, the communications interface 1002, and the memory 1003 complete their mutual communication through the communication bus 1004.

[0078] The processor 1001 can call the logical instructions in the memory 1003 to execute the above method: after the air conditioner is started, obtain the first outdoor temperature and the second outdoor temperature before the air conditioner stopped last time; obtain the first temperature difference between the first outdoor temperature and the second outdoor temperature; obtain a first preset difference, and control the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference.

[0079] In addition, when the logical instructions in the above-mentioned memory 1003 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0080] It should be noted that the controller in this embodiment may be a server, a PC, or other devices when specifically implemented, as long as its structure includes, as Figure 2 shown, a processor 1001, a communications interface 1002, a memory 1003, and a communication bus 1004. Among them, the processor 1001, the communications interface 1002, and the memory 1003 complete their mutual communication through the communication bus 1004, and the processor 1001 can call the logical instructions in the memory 1003 to execute the above method. This embodiment does not limit the specific implementation form of the controller.

[0081] On the other hand, the present invention also provides a computer program product. The computer program product includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the control method of the air-conditioning system provided in each of the above method embodiments. The method includes: after the air conditioner is started, obtaining a first outdoor temperature and a second outdoor temperature before the air conditioner stopped last time; obtaining a first temperature difference between the first outdoor temperature and the second outdoor temperature; obtaining a first preset difference, and controlling the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference.

[0082] In another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it is configured to execute the control method of the air-conditioning system provided in each of the above method embodiments.

[0083] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without creative labor.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in each of the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the present invention.

Claims

1. A control method for an air conditioner, characterized in that, It includes the following steps: After the air conditioner is started, obtain the first outdoor temperature and the second outdoor temperature before the air conditioner stopped last time; Obtain the first temperature difference between the first outdoor temperature and the second outdoor temperature; Obtain a first preset difference, and control the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference; The step of obtaining a first preset difference and controlling the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference includes: When the first temperature difference is greater than the first preset difference, control the compressor to start directly; The step of obtaining a first preset difference and controlling the compressor of the air conditioner to start according to the relationship between the first temperature difference and the first preset difference further includes: When the temperature difference is less than the first preset difference, obtain the first exhaust temperature and the second exhaust temperature before the air conditioner stopped; Obtain the second temperature difference between the first exhaust temperature and the second exhaust temperature; Obtain a second preset difference, and control the compressor of the air conditioner to start according to the relationship between the second temperature difference and the second preset difference; The step of obtaining a second preset difference and controlling the compressor of the air conditioner to start according to the relationship between the second temperature difference and the second preset difference includes: When the second temperature difference is greater than the second preset difference, control the compressor to start directly; The step of obtaining a second preset difference and controlling the compressor of the air conditioner to start according to the relationship between the second temperature difference and the second preset difference further includes: When the second temperature difference is less than the second preset difference, control the compressor to start after delaying for a first preset time; Before the step of obtaining the first outdoor temperature and the second outdoor temperature before the air conditioner stopped, it further includes: Obtain the power supply state of the air conditioner; When the air conditioner is normally powered, obtain the first outdoor temperature and the second outdoor temperature; When the air conditioner is unstably powered, control the compressor to start after delaying for a first preset time.

2. The control method of the air conditioner according to claim 1, wherein, The setting method of the second preset difference includes the following steps: Control the air conditioner to run in a test mode for a second preset time, and obtain the first test exhaust temperature; After stopping the test mode, obtain the second test exhaust temperature after the compressor pressure is balanced; Obtain the exhaust temperature difference between the first test exhaust temperature and the second test exhaust temperature; Set the second preset difference according to the exhaust temperature difference.

3. The control method of the air conditioner according to claim 1, characterized in that, The setting method of the first preset difference includes the following steps: Obtain multiple ambient temperatures, and obtain the maximum temperature and the minimum temperature among them; Obtain the ambient temperature difference between the maximum temperature and the minimum temperature; Set the first preset difference according to the ambient temperature difference.

4. A control device for an air conditioner, characterized in that, It includes a memory, a processor, and a control program of the air conditioner stored on the memory and executable on the processor. The control program of the air conditioner is configured to implement the control method of the air conditioner according to any one of claims 1 to 3.

5. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the control method of the air conditioner according to any one of claims 1 to 3.

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