Compressor control method and device, air conditioner and storage medium

Abstract

The present disclosure provides a compressor control method, device, air conditioner and storage medium, by acquiring the indoor environment temperature of the air conditioner, and the communication state of the air conditioner indoor unit and the air conditioner outdoor unit; if the indoor environment temperature reaches the preset shutdown temperature and the communication state is abnormal, the air conditioner indoor unit generates a pulse control signal; the pulse control signal is sent to the air conditioner outdoor unit; the air conditioner outdoor unit adjusts the operating parameters of the compressor according to the frequency of the pulse control signal. The present disclosure can realize precise control of the air conditioner compressor under the condition of no communication between the air conditioner indoor unit and the air conditioner outdoor unit.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioning control technology, specifically to a compressor control method, device, air conditioner, and computer-readable storage medium. Background Technology

[0002] During operation, the indoor and outdoor units of a split air conditioner need to communicate to exchange system parameters in order to adjust and control the load.

[0003] Without communication between the indoor and outdoor units, the air conditioner cannot be effectively controlled. Summary of the Invention

[0004] Embodiments of this disclosure provide a compressor control method, apparatus, air conditioner, and computer-readable storage medium, aimed at achieving precise control of the air conditioner compressor under conditions where there is no communication between the indoor and outdoor units.

[0005] In a first aspect, embodiments of this disclosure provide a compressor control method, comprising:

[0006] The indoor ambient temperature of the air conditioner and the communication status between the indoor unit and the outdoor unit of the air conditioner are obtained.

[0007] If the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal, the indoor unit of the air conditioner is controlled to generate a pulse control signal.

[0008] The pulse control signal is sent to the outdoor unit of the air conditioner;

[0009] The outdoor unit of the air conditioner adjusts the operating parameters of the compressor according to the frequency of the pulse control signal.

[0010] Secondly, embodiments of this disclosure provide a compressor control device, including:

[0011] The acquisition module is used to acquire the indoor ambient temperature of the air conditioner and the communication status between the indoor unit and the outdoor unit of the air conditioner.

[0012] The control module is used to control the indoor unit of the air conditioner to generate a pulse control signal if the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal.

[0013] The transmitting module is used to transmit the pulse control signal to the outdoor unit of the air conditioner via the cable between the indoor unit and the outdoor unit.

[0014] The adjustment module is used to adjust the operating parameters of the compressor by means of the outdoor unit of the air conditioner according to the frequency of the pulse control signal.

[0015] Thirdly, embodiments of this disclosure provide an air conditioner, including a processor and a memory, the memory storing multiple instructions; the processor loads instructions from the memory to execute the steps of the compressor control method described above.

[0016] Fourthly, embodiments of this disclosure provide a computer-readable storage medium including a processor and a memory, the memory storing a plurality of instructions; the processor loads instructions from the memory to perform the steps of the compressor control method described above.

[0017] The beneficial effects of the embodiments of this disclosure are as follows:

[0018] In this disclosure, when the communication between the air conditioner's outdoor unit and indoor unit is abnormal, if the indoor ambient temperature reaches the preset shutdown temperature, the indoor unit can generate a pulse control signal and send it to the outdoor unit. Upon receiving the pulse control signal, the outdoor unit can control the operating parameters of the compressor based on the frequency of the pulse control signal. Therefore, this disclosure allows for flexible adjustment of the compressor's operating parameters based on the frequency of the pulse control signal, preventing the outdoor unit from directly shutting down the air conditioner upon receiving the pulse control signal. This solves the problem of frequent compressor start-stop when communication between the indoor and outdoor units is abnormal, thereby improving air conditioner energy efficiency and enhancing the user experience. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a flowchart provided in the embodiments of this disclosure;

[0021] Figure 2 This is a first schematic diagram of the pulse control signal provided in the embodiments of this disclosure;

[0022] Figure 3 This is a second schematic diagram of the pulse control signal provided in the embodiments of this disclosure;

[0023] Figure 4 This is the first mapping representation provided in the embodiments of this disclosure;

[0024] Figure 5 This is a schematic diagram of the compressor control device provided in the embodiments of this disclosure;

[0025] Figure 6 This is a schematic diagram of the structure of the air conditioner provided in the embodiments of this disclosure. Detailed Implementation

[0026] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation and are not intended to limit this disclosure. In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. At the same time, in the description of the embodiments of this disclosure, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the embodiments of this disclosure, "multiple" means two or more, unless otherwise explicitly specified.

[0027] As described in the background technical description above, during normal operation of a split air conditioner, the indoor and outdoor units need to communicate to exchange coefficient parameters, thereby regulating and controlling the load. Conventional FireWire, RS-485, and CAN communication methods can all enable this interaction between the indoor and outdoor units.

[0028] For AHU or conventional light commercial products in the North American / Central and South American markets, the indoor and outdoor units are sold separately, which prevents them from communicating.

[0029] Therefore, in order to solve the problem of the air conditioner indoor unit and air conditioner outdoor unit being unable to communicate normally, and in order to enable the air conditioner indoor unit and air conditioner outdoor unit to adjust and control the load even without communication, this disclosure proposes a compressor control method, device, air conditioner and computer storage medium. Through a 24V communication inverter compressor frequency control method, the compressor frequency can be adjusted according to load changes even without communication, avoiding frequent compressor start-stop and improving comfort and energy saving.

[0030] Specifically, the compressor control method in this disclosure is applied to an air conditioner, which includes an outdoor unit and an indoor unit, such as... Figure 1 As shown, the specific steps include:

[0031] Step S10: Obtain the indoor ambient temperature of the air conditioner and the communication status between the indoor unit and the outdoor unit of the air conditioner;

[0032] It should be noted that, in this embodiment, according to the above description, when the indoor and outdoor units of the air conditioner can communicate normally, the compressor operation can be directly controlled based on the communication interaction between the indoor and outdoor units. However, when the communication between the indoor and outdoor units is abnormal, the air conditioner cannot utilize the interactive data between the indoor and outdoor units (such as indoor ambient temperature, indoor humidity, compressor speed, and fan speed).

[0033] Therefore, in this embodiment, the air conditioner can obtain the indoor ambient temperature of the indoor unit and detect the communication status between the indoor unit and the outdoor unit.

[0034] S20, if the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal, then control the indoor unit of the air conditioner to generate a pulse control signal;

[0035] S30, the pulse control signal is sent to the outdoor unit of the air conditioner.

[0036] In this embodiment, if the air conditioner detects that the indoor ambient temperature has reached the preset shutdown temperature and the communication status between the indoor and outdoor units of the air conditioner is abnormal, it can control the indoor unit of the air conditioner to generate a pulse control signal.

[0037] It should be noted that, in this embodiment, as Figure 2 and Figure 3 As shown, when the indoor unit of the air conditioner detects that the indoor ambient temperature has reached the preset shutdown temperature and the communication status between the indoor and outdoor units is abnormal, it can generate a response like this: Figure 2 The 24V pulse control signal shown (this pulse control signal is used to control the compressor to stop when it reaches the set temperature; this pulse control signal can also be called the temperature-reaching stop signal); the indoor unit of the air conditioner can generate this signal when it detects a system fault or when the user manually shuts down the unit. Figure 3 The 24V pulse control signal shown.

[0038] Furthermore, the indoor unit of the air conditioner can send the generated 24V pulse control signal to the outdoor unit.

[0039] For example, the indoor unit of the air conditioner can send the aforementioned 24V pulse control signal to the outdoor unit through the cable between the indoor unit and the outdoor unit. This embodiment does not specifically limit the transmission method of the aforementioned 24V pulse control signal. It is worth noting that since the outdoor unit and the indoor unit of the air conditioner cannot communicate normally in this embodiment, the existing communication methods between the indoor and outdoor units of the air conditioner (such as RS-485 communication) cannot be used normally.

[0040] Based on this, if the outdoor unit of the air conditioner receives [something] during operation... Figure 2If the 24V pulse control signal shown is received, it indicates that the indoor load has reached the set requirement and the unit meets the temperature requirements; if it receives... Figure 3 If the 24V pulse control signal shown is detected, it indicates a system fault or user-initiated shutdown. The outdoor unit of the air conditioner will immediately stop in response, controlling the compressor to shut down.

[0041] S40, the outdoor unit of the air conditioner adjusts the operating parameters of the compressor according to the frequency of the pulse control signal.

[0042] The outdoor unit of the air conditioner receives Figure 2 After receiving the 24V pulse control signal shown, the operating parameters of the compressor can be adjusted according to the frequency of the pulse control signal.

[0043] It is worth noting that, in this embodiment, the frequency of the pulse control signal can be understood as the number of times a single pulse control signal occurs, while the compressor's operating parameters can include the compressor's running time and operating frequency, etc.

[0044] Based on this, the outdoor unit of the air conditioner can adjust the operating frequency of the compressor according to the number of pulse control signals received.

[0045] In this embodiment, the air conditioner can acquire the indoor ambient temperature of the indoor unit and detect the communication status between the indoor and outdoor units. If the air conditioner detects that the indoor ambient temperature has reached the preset shutdown temperature and the communication status between the indoor and outdoor units is abnormal, it can control the indoor unit to generate a pulse control signal and send it to the outdoor unit. After receiving the pulse control signal, the outdoor unit can adjust the operating parameters of the compressor according to the frequency of the pulse control signal.

[0046] Therefore, in this disclosure, when the communication between the air conditioner's outdoor unit and indoor unit is abnormal, if the indoor ambient temperature reaches the preset shutdown temperature, the indoor unit can generate a pulse control signal and send it to the outdoor unit. After receiving the pulse control signal, the outdoor unit can control the operating parameters of the compressor based on the frequency of the pulse control signal. Thus, this disclosure can flexibly adjust the compressor's operating parameters based on the frequency of the pulse control signal, preventing the outdoor unit from directly shutting down the air conditioner after receiving the pulse control signal. This solves the problem of frequent compressor start-stop when the communication between the indoor and outdoor units is abnormal, thereby improving air conditioner energy efficiency and enhancing user experience.

[0047] In one embodiment, S40 above, "adjusting the operating parameters of the compressor by the outdoor unit of the air conditioner according to the frequency of the pulse control signal," may include:

[0048] S401, if the frequency of the pulse control signal is less than a preset frequency threshold, then the compressor is controlled to operate at a reduced frequency through the outdoor unit of the air conditioner;

[0049] S402, if no new pulse control signal is received during the compressor's frequency reduction operation, the compressor is controlled to increase its frequency until it stabilizes.

[0050] In this embodiment, the outdoor unit of the air conditioner receives... Figure 2 After receiving the 24V pulse control signal shown, the frequency of this pulse control signal can be counted. If the frequency of this pulse control signal is less than a preset frequency threshold, the compressor can be controlled to operate at a reduced frequency.

[0051] Specifically, for example, in this embodiment, the preset frequency threshold can be 2 times. That is, if the pulse control signal is the first pulse control signal, the outdoor unit of the air conditioner can control the compressor to run at a lower frequency. For example, if the outdoor unit of the air conditioner receives the pulse control signal for the first time, the outdoor unit of the air conditioner can control the compressor frequency to be reduced by 10 Hz and run stably after the frequency is reduced by 10 Hz.

[0052] Furthermore, the outdoor unit of the air conditioner can detect whether it receives a new pulse control signal while the compressor is running stably at a reduced frequency of 10 Hz. If no new pulse control signal is received, the outdoor unit can control the compressor to increase its frequency until it reaches stable operation. For example, the outdoor unit can control the compressor to increase its frequency based on the current operating frequency, such as gradually increasing the frequency by 2 Hz / min, up to a maximum of 8 Hz.

[0053] In one specific embodiment, the compressor frequency increase / decrease strategy may include:

[0054] (a) If the outdoor unit of the air conditioner is receiving the arrival temperature signal for the first time (i.e.) Figure 2 The 24V pulse control signal in the circuit causes the unit to operate at a 10Hz reduced frequency.

[0055] (b) If the compressor runs stably for 10 minutes (temperature is not detected in the first 5 minutes) and no new pulse control signal appears, the frequency is gradually increased by 2 Hz / 1 minute, up to a maximum of 8 Hz. If there is still no temperature signal after the frequency is increased, the compressor is controlled to maintain the current frequency for stable operation. If a temperature signal appears during the frequency increase, the frequency is reduced by 2 Hz each time and then the compressor runs stably for 1 minute, up to a maximum of 8 Hz. The unit maintains the current frequency for stable operation.

[0056] (c) If the unit reaches the temperature signal during 10 minutes of stable operation, then continue to reduce the frequency by 10 Hz and return to (b) operation.

[0057] It is understandable that in this embodiment, due to the communication abnormality between the outdoor unit and the indoor unit of the air conditioner, they cannot interact. The indoor unit can only send pulse control signals to the outdoor unit. However, the pulse control signals do not carry relevant control information or air conditioner parameter information. Therefore, after the outdoor unit receives the pulse control signal for the first time, it can perform fuzzy control on the compressor frequency by increasing or decreasing the frequency. This avoids the outdoor unit directly controlling the compressor to stop after receiving the pulse control signal, which would cause the compressor to start and stop frequently and increase the energy consumption of the air conditioner.

[0058] In one embodiment, after S401, "if the frequency of the pulse control signal is less than a preset frequency threshold, then the compressor is controlled to operate at a reduced frequency via the outdoor unit of the air conditioner," the following may be included:

[0059] Step S403: If a new pulse control signal is received during the compressor's frequency reduction operation, then the compressor is controlled to reduce its frequency.

[0060] Step S404: Calculate the running time of the compressor and the number of times the compressor reduced its frequency;

[0061] Step S405: If the compressor's running time reaches a preset running time threshold, and / or the compressor's frequency reduction reaches a preset frequency threshold, then control the compressor to stop.

[0062] In this embodiment, if a new pulse control signal is detected during the stable operation of the compressor at a reduced frequency of 10 Hz in the outdoor unit of the air conditioner, the compressor can be controlled to continue to reduce its frequency based on the current frequency. The running time of the compressor and the number of times the compressor reduces its frequency are counted. Then, if the running time of the compressor reaches a preset running time threshold, and / or the number of times the compressor reduces its frequency reaches a preset frequency threshold, the compressor can be controlled to stop.

[0063] Specifically, for example, if the outdoor unit of the air conditioner receives the pulse control signal for the first time and runs for a preset time according to the above strategy, and no new pulse control signal appears, the compressor can be directly controlled to stop. And / or, if the compressor runs stably for a preset number of frequency reductions for a preset time and still no new temperature signal is received, the compressor can also be directly controlled to stop.

[0064] In one specific embodiment, if the outdoor unit of the air conditioner still does not show a temperature-reaching signal after controlling the compressor to reduce its frequency by 10 Hz for the second time and running stably for 10 minutes, the compressor can be directly controlled to stop. Alternatively, the outdoor unit of the air conditioner can also directly control the compressor to stop after receiving the temperature-reaching signal for the first time and controlling the compressor to run for 20 minutes.

[0065] Therefore, in this embodiment, after receiving the pulse control signal sent by the indoor unit, the outdoor unit of the air conditioner can control the compressor to run at a reduced frequency. However, if the compressor still does not receive a new pulse control signal after multiple frequency reductions or if the compressor runs for too long, the compressor can be directly controlled to stop, responding to the indoor unit's request to stop when the temperature is reached, thus avoiding increased air conditioning energy consumption caused by the compressor running for a long time.

[0066] In one embodiment, in the above-described S40, "adjusting the operating parameters of the compressor by means of the outdoor unit of the air conditioner according to the frequency of the pulse control signal" may include:

[0067] S406, if the frequency of the pulse control signal is greater than or equal to the preset frequency threshold, then obtain the historical temperature-reaching shutdown cycle of the compressor;

[0068] S407, adjust the operating parameters of the compressor according to the historical temperature-reaching shutdown cycle and the preset mapping table.

[0069] In this embodiment, as described above, when the preset frequency threshold is specifically 2 times, meaning that the outdoor unit of the air conditioner has received the pulse control signal before, the outdoor unit can obtain the compressor's historical temperature-reaching shutdown cycle. Furthermore, the compressor's operating parameters can be adjusted based on this historical temperature-reaching shutdown cycle and the preset target temperature-reaching shutdown cycle.

[0070] It should be noted that, in this embodiment, the temperature-reaching shutdown cycle t 达温停机周期 =t2-t1 and the target temperature shutdown period t 达温停机目标周期 The time can be flexibly set according to the actual air conditioner operation, such as 60 minutes. Here, t1 represents the start time of the outdoor unit and t2 represents the stop time of the outdoor unit reaching the desired temperature.

[0071] Therefore, compared to the fuzzy frequency control when the pulse control signal is received for the first time, the outdoor unit of the air conditioner can precisely control the compressor frequency based on the historical temperature-reaching shutdown cycle when it receives the pulse control signal for the first time.

[0072] In one embodiment, step S407 above, "adjusting the compressor's operating parameters according to the historical temperature-reaching shutdown cycle and a preset mapping table," may include:

[0073] S4071, Calculate the rate of change of the compressor's temperature-reaching shutdown cycle based on the historical temperature-reaching shutdown cycle and the preset target temperature-reaching shutdown cycle;

[0074] S4072, based on the temperature-reaching shutdown cycle change rate and the first mapping table, query the frequency adjustment amount corresponding to the temperature-reaching shutdown cycle change rate;

[0075] S4073, obtain the ambient temperature of the environment where the outdoor unit of the air conditioner is located, and obtain the operating frequency corresponding to the ambient temperature based on the ambient temperature and the second mapping table;

[0076] S4074, Calculate the target frequency of the compressor based on the frequency adjustment amount and the operating frequency, and control the compressor to operate at the target frequency.

[0077] In this embodiment, after receiving a non-first pulse control signal, the outdoor unit of the air conditioner can calculate the rate of change of the compressor's temperature-reaching shutdown cycle based on the historical temperature-reaching shutdown cycle and the preset target temperature-reaching shutdown cycle. For example, the rate of change of the temperature-reaching shutdown cycle can be obtained by differentiating the historical temperature-reaching shutdown cycle with the difference Δt between the target temperature-reaching shutdown cycle and the historical temperature-reaching shutdown cycle.

[0078] It should be noted that, in this embodiment, as Figure 4 As shown, different differences Δt and the rate of change of the temperature-reaching shutdown cycle... The first mapping table contains a corresponding frequency adjustment amount ΔF. It can be understood that the difference Δt between the target temperature-reaching shutdown cycle and the historical temperature-reaching shutdown cycle is... It can be collected and calculated.

[0079] Based on this, we can determine Δt and Query the corresponding frequency adjustment value △F in the first mapping table.

[0080] Furthermore, the outdoor unit of the air conditioner can obtain the ambient temperature of its surroundings, and based on this ambient temperature and the second mapping table, obtain the operating frequency F corresponding to the ambient temperature. 运行频率 .

[0081] It should be noted that, in this embodiment, the second mapping table can represent the frequency curve of the compressor. The horizontal axis of the frequency curve can be the ambient temperature, and the vertical axis can be the power of the compressor corresponding to the ambient temperature.

[0082] Furthermore, the outdoor unit of the air conditioner can adjust the frequency by the aforementioned frequency adjustment amount ΔF and the operating frequency F. 运行频率 Calculate the target frequency of the compressor and control the compressor to operate at that target frequency.

[0083] Specifically, for example, F 目标频率 =F 运行频率 +K 频率增量系数 *△F, where K 频率增量系数 This can be determined based on empirical values, and this embodiment does not impose specific limitations on it.

[0084] Following the above S4074, "calculate the target frequency of the compressor based on the frequency adjustment amount and the operating frequency, and control the compressor to operate at the target frequency," it may further include:

[0085] S4075, Obtain the operating time of the compressor;

[0086] S4076, if the compressor's operating time reaches a preset temperature-reaching operating time threshold, then control the compressor to operate at increased frequency;

[0087] S4077, until the compressor frequency reaches a preset frequency threshold, control the compressor to stop.

[0088] In this embodiment, when the outdoor unit of the air conditioner controls the compressor to run at the target frequency according to the above mapping table, if the compressor is still running after reaching the preset temperature-reaching running time threshold, in order to avoid the compressor running for a long time and causing an increase in air conditioner energy consumption, the outdoor unit of the air conditioner can count the running time of the compressor in real time.

[0089] Furthermore, if the outdoor unit of the air conditioner detects that the compressor's running time has reached the preset temperature-reaching running time threshold, it can control the compressor to increase its frequency until the compressor's running time reaches the preset frequency threshold, and then control the compressor to stop. The preset frequency threshold can be the maximum operating frequency that the compressor can achieve in cooling or heating mode.

[0090] Understandably, if the outdoor unit of the air conditioner detects that the running time has reached the preset temperature-reaching running time threshold and has not yet stopped, the compressor can be controlled to increase its frequency to the maximum operating frequency before stopping. This can reduce the overall energy consumption of the air conditioner and improve the user experience.

[0091] Therefore, in this embodiment, after receiving the pulse control signal, if the pulse control signal is not the first pulse control signal, the outdoor unit of the air conditioner queries the target frequency corresponding to the current outdoor ambient temperature according to multiple mapping tables, and controls the compressor to run at the target frequency. When the running time reaches the preset temperature-reaching running time threshold, the compressor is directly controlled to increase its frequency and then stop. Compared with the fuzzy control of the compressor frequency, this embodiment achieves precise control of the compressor frequency, reduces system energy consumption, and improves user experience.

[0092] In one embodiment, after S20, "if the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal, then control the indoor unit of the air conditioner to generate a pulse control signal", it may further include:

[0093] S60, obtain the surface temperature of the coil in the indoor unit of the air conditioner through the indoor unit of the air conditioner;

[0094] S70, if the surface temperature is greater than a preset first temperature threshold or less than a preset second temperature threshold, then the fan in the indoor unit of the air conditioner is controlled to stop.

[0095] In this embodiment, when communication between the outdoor unit and the indoor unit of the air conditioner is abnormal, on the one hand, the indoor unit can send a pulse control signal to the outdoor unit, and on the other hand, the indoor unit can also detect the surface temperature of the coil in the indoor unit.

[0096] In the indoor unit's cooling mode, if the coil temperature is greater than or equal to the preset first temperature threshold, or in the indoor unit's heating mode, if the coil temperature is less than or equal to the preset second temperature threshold, the indoor unit can control its fan to stop running. The preset first temperature threshold can be the indoor ambient temperature minus a preset value (e.g., the indoor ambient temperature minus 2℃), and the preset second temperature threshold can be the indoor ambient temperature plus a preset value (e.g., the indoor ambient temperature plus 10℃).

[0097] Therefore, in this embodiment, if the coil temperature and the indoor ambient temperature are close, the indoor unit of the air conditioner can control its fan to stop running. In addition, if the outdoor unit malfunctions and cannot be shut down, and the outdoor unit does not receive the pulse control signal triggered by the user's manual shutdown, the indoor unit of the air conditioner can also control the fan according to the coil temperature to avoid increased air conditioning energy consumption caused by the indoor unit running for a long time.

[0098] This embodiment also provides a compressor control device, which can be specifically integrated into an air conditioner, for example, as shown below. Figure 5 As shown, the compressor control device may include:

[0099] The acquisition module 1001 is used to acquire the indoor ambient temperature of the air conditioner and the communication status between the indoor unit and the outdoor unit of the air conditioner.

[0100] The control module 1002 is used to control the indoor unit of the air conditioner to generate a pulse control signal if the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal.

[0101] The transmitting module 1003 is used to transmit the pulse control signal to the outdoor unit of the air conditioner;

[0102] The adjustment module 1004 is used to adjust the operating parameters of the compressor by means of the outdoor unit of the air conditioner according to the frequency of the pulse control signal.

[0103] Optionally, the adjustment module 1004 includes:

[0104] The first control unit is used to control the compressor to operate at a reduced frequency through the outdoor unit of the air conditioner if the frequency of the pulse control signal is less than a preset frequency threshold.

[0105] The second control unit is used to control the compressor to increase its frequency if no new pulse control signal is received during the compressor's frequency reduction operation, until the operation is stable.

[0106] Optionally, the adjustment module 1004 includes:

[0107] The third control unit is used to control the compressor to operate at a reduced frequency if a new pulse control signal is received during the compressor's reduced frequency operation.

[0108] The statistics unit is used to count the running time of the compressor and the number of times the compressor reduces its frequency;

[0109] The fourth control unit is used to control the compressor to stop if the compressor's running time reaches a preset running time threshold, and / or the compressor's frequency reduction reaches a preset frequency threshold.

[0110] Optionally, the adjustment module 1004 includes:

[0111] The first acquisition unit is used to acquire the historical temperature-reaching shutdown cycle of the compressor if the frequency of the pulse control signal is greater than or equal to the preset frequency threshold.

[0112] The adjustment unit is used to adjust the operating parameters of the compressor according to the historical temperature-reaching shutdown cycle and a preset mapping table.

[0113] Optionally, the mapping table includes a first mapping table and a second mapping table, and the adjustment unit includes:

[0114] The first calculation subunit is used to calculate the rate of change of the compressor's temperature-reaching shutdown cycle based on the historical temperature-reaching shutdown cycle and the preset target temperature-reaching shutdown cycle.

[0115] The query subunit is used to query the frequency adjustment amount corresponding to the temperature-reaching shutdown cycle change rate and the first mapping table.

[0116] The first acquisition subunit is used to acquire the ambient temperature of the environment where the outdoor unit of the air conditioner is located, and to acquire the operating frequency corresponding to the ambient temperature based on the ambient temperature and the second mapping table.

[0117] The calculation subunit is used to calculate the target frequency of the compressor based on the frequency adjustment amount and the operating frequency, and control the compressor to operate at the target frequency.

[0118] Optionally, the adjustment unit includes:

[0119] The second acquisition subunit is used to acquire the operating time of the compressor;

[0120] The first control subunit is used to control the compressor to increase its frequency if the compressor's operating time reaches a preset temperature-reaching operating time threshold.

[0121] The second control subunit is used to control the compressor to stop when the compressor frequency reaches a preset frequency threshold.

[0122] Optionally, the compressor control device in this disclosure further includes:

[0123] The second acquisition module is used to acquire the surface temperature of the coil in the indoor unit of the air conditioner.

[0124] The second control module is used to control the fan in the indoor unit of the air conditioner to stop if the surface temperature is greater than a preset first temperature threshold or less than a preset second temperature threshold.

[0125] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0126] Accordingly, this disclosure also provides an air conditioner, such as... Figure 6 As shown, Figure 6 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this disclosure. The air conditioner 1100 includes a processor 1101 with one or more processing cores, a memory 1102 with one or more computer-readable storage media, and a computer program stored on the memory 1102 and executable on the processor. The processor 1101 and the memory 1102 are electrically connected. Those skilled in the art will understand that the air conditioner structure shown in the figure does not constitute a limitation on the air conditioner, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0127] The processor 1101 is the control center of the air conditioner 1100. It connects to various parts of the air conditioner 1100 via various interfaces and lines. By running or loading software programs and / or units stored in the memory 1102, and by calling data stored in the memory 1102, it executes various functions of the air conditioner 1100 and processes data, thereby providing overall monitoring of the air conditioner 1100. The processor 1101 can be a CPU, GPU, network processor (NP), etc., and can implement or execute the methods, steps, and logic diagrams disclosed in the embodiments of this disclosure.

[0128] In this embodiment of the disclosure, the processor 1101 in the air conditioner 1100 loads the instructions corresponding to the processes of one or more application programs into the memory 1102 according to the following steps, and the processor 1101 runs the application programs stored in the memory 1102 to realize various functions, such as:

[0129] The indoor ambient temperature of the air conditioner and the communication status between the indoor unit and the outdoor unit of the air conditioner are obtained.

[0130] If the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal, the indoor unit of the air conditioner is controlled to generate a pulse control signal.

[0131] The pulse control signal is sent to the outdoor unit of the air conditioner;

[0132] The outdoor unit of the air conditioner adjusts the operating parameters of the compressor according to the frequency of the pulse control signal.

[0133] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0134] Optional, such as Figure 6 As shown, the air conditioner 1100 also includes: a touch screen display 1103, a radio frequency circuit 1104, an audio circuit 1105, an input unit 1106, and a power supply 1107. The processor 1101 is electrically connected to the touch screen display 1103, the radio frequency circuit 1104, the audio circuit 1105, the input unit 1106, and the power supply 1107. Those skilled in the art will understand that... Figure 6 The air conditioning structure shown does not constitute a limitation on the air conditioning system and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0135] The touch display screen 1103 can be used to display a graphical user interface (GUI) and receive operation commands generated by the user interacting with the GUI. The touch display screen 1103 may include a display panel and a touch panel. The display panel can be used to display information input by the user or information provided to the user, as well as various GUIs of the air conditioner. These GUIs can be composed of graphics, text, icons, video, and any combination thereof. Optionally, the display panel can be configured using a liquid crystal display (LCD), organic light-emitting diode (OLED), or other similar technologies. The touch panel can be used to collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near the touch panel), and generate corresponding operation commands, which then execute the corresponding program. Optionally, the touch panel may include a touch detection system and a touch controller. The touch detection system detects the user's touch location and the signal generated by the touch operation, transmitting the signal to the touch controller. The touch controller receives touch information from the touch detection system, converts it into touch point coordinates, and sends it to the processor 1101. It can also receive and execute commands from the processor 1101. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it transmits the information to the processor 1101 to determine the type of touch event. Subsequently, the processor 1101 provides corresponding visual output on the display panel based on the type of touch event. In this embodiment, the touch panel and the display panel can be integrated into the touch display screen 1103 to achieve input and output functions. However, in some embodiments, the touch panel and the touch display screen 1103 can be implemented as two independent components to achieve input and output functions. That is, the touch display screen 1103 can also be used as part of the input unit 1106 to achieve input functions.

[0136] The radio frequency circuit 1104 can be used to transmit and receive radio frequency signals to establish wireless communication with network devices or other air conditioners, and to transmit and receive signals with network devices or other air conditioners.

[0137] Audio circuit 1105 can be used to provide an audio interface between the user and the air conditioner via a speaker and a microphone. Audio circuit 1105 can convert received audio data into electrical signals and transmit them to the speaker, where the speaker converts them into sound signals for output. Conversely, the microphone converts collected sound signals into electrical signals, which are then received by audio circuit 1105, converted back into audio data, and then processed by processor 1101 before being transmitted via radio frequency circuit 1104 to, for example, another air conditioner, or output to memory 1102 for further processing. Audio circuit 1105 may also include an earphone jack to provide communication between external headphones and the air conditioner.

[0138] The input unit 1106 can be used to receive input numbers, characters, or user characteristic information (such as fingerprints, iris, facial information, etc.), and to generate keyboard, mouse, joystick, optical, or trackball signal inputs related to user settings and function control.

[0139] Power supply 1107 is used to supply power to the various components of air conditioner 1100. Optionally, power supply 1107 can be logically connected to processor 1101 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. Power supply 1107 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0140] although Figure 6 As not shown in the diagram, the air conditioner 1100 may also include a camera, sensor, wireless fidelity module, Bluetooth module, etc., which will not be described in detail here.

[0141] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0142] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0143] Therefore, embodiments of this disclosure provide a computer-readable storage medium storing a plurality of computer programs that can be loaded by a processor to execute any of the compressor control methods provided in embodiments of this disclosure. The computer program can execute the following steps of the compressor control method:

[0144] The indoor ambient temperature of the air conditioner and the communication status between the indoor unit and the outdoor unit of the air conditioner are obtained.

[0145] If the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal, the indoor unit of the air conditioner is controlled to generate a pulse control signal.

[0146] The pulse control signal is sent to the outdoor unit of the air conditioner;

[0147] The outdoor unit of the air conditioner adjusts the operating parameters of the compressor according to the frequency of the pulse control signal.

[0148] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0149] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0150] Since the computer program stored in the computer-readable storage medium can execute any of the compressor control methods provided in the embodiments of this disclosure, the beneficial effects that any of the compressor control methods provided in the embodiments of this disclosure can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0151] In the descriptions of the compressor control device, computer-readable storage medium, and air conditioner described above, each embodiment has its own emphasis. For parts not detailed in a particular embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes and beneficial effects of the compressor control device, computer-readable storage medium, air conditioner, and their corresponding units described above can be referred to the description of the compressor control method in the above embodiments, and will not be repeated here.

[0152] The above provides a detailed description of a compressor control method, apparatus, air conditioner, and computer-readable storage medium provided by the embodiments of this disclosure. Specific examples have been used to illustrate the principles and implementation methods of this disclosure. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this disclosure. At the same time, those skilled in the art will recognize that there will be changes in the specific implementation methods and application scope based on the ideas of this disclosure. Therefore, the content of this specification should not be construed as a limitation of this disclosure.

Claims

1. A compressor control method, characterized in that, The compressor control method is applied to an air conditioner, which includes an indoor unit and an outdoor unit. The method includes: The indoor ambient temperature of the air conditioner and the communication status between the indoor unit and the outdoor unit of the air conditioner are obtained. If the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal, the indoor unit of the air conditioner is controlled to generate a pulse control signal. The pulse control signal is sent to the outdoor unit of the air conditioner; The outdoor unit of the air conditioner adjusts the operating parameters of the compressor according to the frequency of the pulse control signal.

2. The compressor control method according to claim 1, characterized in that, The step of adjusting the compressor's operating parameters by means of the outdoor unit of the air conditioner according to the frequency of the pulse control signal includes: If the frequency of the pulse control signal is less than a preset frequency threshold, the compressor is controlled to operate at a reduced frequency via the outdoor unit of the air conditioner. If no new pulse control signal is received during the compressor's frequency reduction operation, the compressor will be controlled to increase its frequency until it stabilizes.

3. The compressor control method according to claim 2, characterized in that, If the frequency of the pulse control signal is less than a preset frequency threshold, then after controlling the compressor to operate at a reduced frequency via the outdoor unit of the air conditioner, the following steps are included: If a new pulse control signal is received during the compressor's frequency reduction operation, the compressor will be controlled to reduce its frequency. The runtime of the compressor and the number of times the compressor reduced its frequency were recorded. If the compressor's operating time reaches a preset operating time threshold, and / or the compressor's frequency reduction reaches a preset frequency threshold, then the compressor is controlled to stop.

4. The compressor control method according to claim 2, characterized in that, The step of adjusting the compressor's operating parameters by means of the outdoor unit of the air conditioner according to the frequency of the pulse control signal includes: If the frequency of the pulse control signal is greater than or equal to the preset frequency threshold, then the historical temperature-reaching shutdown cycle of the compressor is obtained; The compressor's operating parameters are adjusted based on the historical temperature-reaching shutdown cycle and a preset mapping table.

5. The compressor control method according to claim 4, characterized in that, The mapping table includes a first mapping table and a second mapping table. Adjusting the compressor's operating parameters based on the historical temperature-reaching shutdown cycle and the preset mapping table includes: Based on the historical temperature-reaching shutdown cycle and the preset target temperature-reaching shutdown cycle, calculate the temperature-reaching shutdown cycle variation rate of the compressor; Based on the temperature-reaching shutdown cycle change rate and the first mapping table, query the frequency adjustment amount corresponding to the temperature-reaching shutdown cycle change rate; The ambient temperature of the environment where the outdoor unit of the air conditioner is located is obtained, and the operating frequency corresponding to the ambient temperature is obtained according to the ambient temperature and the second mapping table; Based on the frequency adjustment amount and the operating frequency, the target frequency of the compressor is calculated, and the compressor is controlled to operate at the target frequency.

6. The compressor control method according to claim 5, characterized in that, After calculating the target frequency of the compressor based on the frequency adjustment amount and the operating frequency, and controlling the compressor to operate at the target frequency, the process includes: Obtain the operating time of the compressor; If the compressor's operating time reaches a preset temperature-reaching operating time threshold, then the compressor is controlled to operate at increased frequency. The compressor will stop when its frequency reaches a preset frequency threshold.

7. The compressor control method according to any one of claims 1-6, characterized in that, If the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal, after controlling the indoor unit of the air conditioner to generate a pulse control signal, the method further includes: The surface temperature of the coil in the indoor unit of the air conditioner is obtained through the indoor unit. If the surface temperature is greater than a preset first temperature threshold or less than a preset second temperature threshold, the fan in the indoor unit of the air conditioner will be stopped.

8. A compressor control device, characterized in that, The compressor control device is used in an air conditioner, which includes an indoor unit and an outdoor unit, comprising: The acquisition module is used to acquire the indoor ambient temperature of the air conditioner and the communication status between the indoor unit and the outdoor unit of the air conditioner. The control module is used to control the indoor unit of the air conditioner to generate a pulse control signal if the indoor ambient temperature reaches the preset shutdown temperature and the communication status is abnormal. A transmitting module is used to transmit the pulse control signal to the outdoor unit of the air conditioner; The adjustment module is used to adjust the operating parameters of the compressor by means of the outdoor unit of the air conditioner according to the frequency of the pulse control signal.

9. An air conditioner, characterized in that, It includes a processor and a memory, wherein the memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of any one of the methods described in claims 1 to 7.

10. A computer-readable storage medium, characterized in that, It includes a computer program that, when run on an electronic device, causes the electronic device to perform the steps of any of the methods described in claims 1 to 7.

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