Air conditioner fault detection method and device and air conditioner

Abstract

The invention provides an air conditioner fault detection method and device and an air conditioner, and is applied to the field of air conditioner control. The operation parameters comprise the amplitude of an outdoor unit motor support, the operation power of an outdoor unit motor and the air pressure value of an outdoor unit air outlet; and based on the operation parameters, whether the operation state of the outdoor unit meets a preset early warning condition or not is judged, and alarm information is generated under the condition that the operation state of the outdoor unit meets the preset early warning condition. According to the air conditioner fault detection method and device and the air conditioner, the control method is used for judging whether installation is reasonable or not according to the operation state of the outdoor unit of the air conditioner, and processing is conducted in time when it is determined that installation is unreasonable.

Description

Technical Field

[0001] This application relates to the field of air conditioner control, and particularly to an air conditioner fault detection method, device and air conditioner. Background Art

[0002] With the continuous improvement of people's living standards and the continuous improvement of the intelligent level of household appliances, intelligent household appliances are becoming more and more popular. Users can use the air conditioner for heating in winter to increase the indoor temperature; they can also use the air conditioner for cooling in summer to lower the indoor temperature. The side-outlet outdoor unit relies on the fan to drive air convection to complete the heat exchange process, and the air duct needs to be kept unobstructed during this process. If there are obstacles blocking the air duct, it will lead to poor ventilation, thereby reducing the heat exchange efficiency. In severe cases, the compressor will overheat and protect, or the indoor unit of the air conditioner will stop when the set temperature is not reached.

[0003] In the related art, in order to ensure the smoothness of the outdoor unit air duct, during construction and installation, installers need to judge whether the construction is reasonable based on experience. Affected by the experience of installers, problems such as high wind noise, poor cooling or heating effects caused by unreasonable installation often occur.

[0004] Based on this, there is an urgent need for a control method that can judge whether the installation is reasonable according to the operating state of the outdoor unit of the air conditioner, and process the problem in time when it is found to avoid having a greater impact on users. Summary of the Invention

[0005] The purpose of this application is to provide an air conditioner fault detection method, device and air conditioner, which are used for a control method that can judge whether the installation is reasonable according to the operating state of the outdoor unit of the air conditioner, and process it in time when it is determined that the installation is unreasonable.

[0006] This application provides an air conditioner fault detection method, including: Obtain the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the outdoor unit motor bracket, the operating power of the outdoor unit motor, and the air pressure value at the outdoor unit air outlet; based on the operating parameters, judge whether the operating state of the outdoor unit meets the preset warning conditions, and generate an alarm message when the operating state of the outdoor unit meets the preset warning conditions; wherein, the preset warning conditions include: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is judged based on the amplitude of the outdoor unit motor bracket; the second warning condition is judged based on the operating power of the outdoor unit motor; the third warning condition is judged based on the air pressure value at the outdoor unit air outlet.

[0007] Optionally, determining whether the operating state of the outdoor unit meets a preset warning condition based on the operating parameters includes: after the air conditioner is powered on and running, obtaining the first amplitude of the outdoor unit motor bracket at each time point within at least one detection period; the first amplitude includes: a plurality of amplitude values corresponding to each time point; calculating the mean square deviation of the first amplitude corresponding to each detection period within the at least one detection period to obtain a first calculation result corresponding to each detection period, and determining that the air conditioner is in a stable operating state when the first calculation result corresponding to any detection period is less than a first preset threshold value.

[0008] Optionally, determining whether the operating state of the outdoor unit meets a preset warning condition based on the operating parameters includes: when the air conditioner is in a stable operating state, calculating the number of times that the amplitude of the outdoor unit motor bracket in a target detection period is greater than a second preset threshold value, and the duration during which the amplitude of the outdoor unit motor bracket in the target detection period is greater than the second preset threshold value; determining that the operating state of the outdoor unit meets the first warning condition when the number of times is greater than a preset number threshold value and the duration is greater than a preset duration threshold value.

[0009] Optionally, determining whether the operating state of the outdoor unit meets a preset warning condition based on the operating parameters further includes: if the number of times in the target detection period is less than or equal to the preset number threshold value, and / or the duration is less than or equal to the preset duration threshold value, increasing the target detection period and performing the next round of detection until a preset end condition is met; where the preset end condition includes any one of the following: the number of times the target detection period is increased reaches a third preset threshold value, the operating state of the outdoor unit meets the first warning condition.

[0010] Optionally, determining whether the operating state of the outdoor unit meets a preset warning condition based on the operating parameters includes: when the rotational speed fluctuation of the outdoor unit motor is less than a preset rotational speed threshold value, obtaining a plurality of power values of the outdoor unit motor; calculating the mean square deviation of the plurality of power values to obtain a second calculation result, and determining that the operating state of the outdoor unit meets the second warning condition when the second calculation result is greater than the preset power threshold value.

[0011] Optionally, determining whether the operating state of the outdoor unit meets a preset warning condition based on the operating parameters includes: when the rotational speed fluctuation of the motor of the outdoor unit is less than a preset rotational speed threshold, obtaining the air pressure value at the air outlet of the outdoor unit; when the air pressure value rises or falls, determining that the operating state of the outdoor unit meets the third warning condition; wherein, when the air pressure value rises, it is determined that there is an obstacle in the air outlet duct; when the air pressure value falls, it is determined that there is an obstacle in the air inlet duct.

[0012] The present application also provides an air conditioner fault detection device, including: An acquisition module, configured to acquire the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the motor support of the outdoor unit, the operating power of the motor of the outdoor unit, and the air pressure value at the air outlet of the outdoor unit; a detection module, configured to determine whether the operating state of the outdoor unit meets a preset warning condition based on the operating parameters; an alarm module, configured to generate an alarm message when the operating state of the outdoor unit meets the preset warning condition; wherein, the preset warning conditions include: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is determined based on the amplitude of the motor support of the outdoor unit; the second warning condition is determined based on the operating power of the motor of the outdoor unit; the third warning condition is determined based on the air pressure value at the air outlet of the outdoor unit.

[0013] Optionally, the detection module is specifically configured to, after the air conditioner is powered on and operates, obtain the first amplitude of the motor support of the outdoor unit at each time point within at least one detection period; the first amplitude includes: a plurality of amplitude values corresponding to each time point; the detection module is further specifically configured to calculate the mean square deviation of the first amplitude corresponding to each detection period within the at least one detection period to obtain a first calculation result corresponding to each detection period, and determine that the air conditioner is in a stable operating state when the first calculation result corresponding to any detection period is less than a first preset threshold.

[0014] Optionally, the detection module is specifically configured to, when the air conditioner is in a stable operating state, calculate the number of times that the amplitude of the motor support of the outdoor unit in a target detection period is greater than a second preset threshold, and the duration during which the amplitude of the motor support of the outdoor unit in the target detection period is greater than the second preset threshold; the detection module is further specifically configured to determine that the operating state of the outdoor unit meets the first warning condition when the number of times is greater than a preset number threshold and the duration is greater than a preset duration threshold.

[0015] Optionally, the detection module is specifically configured to, if the number of times within the target detection period is less than or equal to the preset number threshold, and / or the duration is less than or equal to the preset duration threshold, increase the target detection period and perform the next round of detection until a preset end condition is met; wherein the preset end condition includes any one of the following: the number of increases in the target detection period reaches the third preset threshold, and the operating state of the outdoor unit meets the first warning condition.

[0016] Optionally, the detection module is specifically configured to obtain a plurality of power values of the outdoor unit motor when the rotational speed fluctuation of the outdoor unit motor is less than a preset rotational speed threshold; the detection module is further specifically configured to calculate the mean square deviation of the plurality of power values to obtain a second calculation result, and determine that the operating state of the outdoor unit meets the second warning condition when the second calculation result is greater than the preset power threshold.

[0017] Optionally, the detection module is specifically configured to obtain the air pressure value at the air outlet of the outdoor unit when the rotational speed fluctuation of the outdoor unit motor is less than a preset rotational speed threshold; the detection module is further specifically configured to determine that the operating state of the outdoor unit meets the third warning condition when the air pressure value rises or falls; wherein when the air pressure value rises, it is determined that there is an obstacle in the air outlet duct; when the air pressure value falls, it is determined that there is an obstacle in the air inlet duct.

[0018] The present application also provides a computer program product, including a computer program / instructions, and when the computer program / instructions are executed by a processor, the steps of the air conditioner fault detection method as described in any one of the above are implemented.

[0019] The present application also provides an electronic device, which can be an air conditioner. The electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of the air conditioner fault detection method as described in any one of the above are implemented.

[0020] The present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the air conditioner fault detection method as described in any one of the above are implemented.

[0021] The air conditioner fault detection method, device and air conditioner provided by this application first obtain the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the motor bracket of the outdoor unit, the operating power of the outdoor unit motor, and the air pressure value at the air outlet of the outdoor unit; then, based on the operating parameters, it is judged whether the operating state of the outdoor unit meets the preset warning conditions, and when the operating state of the outdoor unit meets the preset warning conditions, an alarm message is generated; wherein, the preset warning conditions include: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is judged based on the amplitude of the motor bracket of the outdoor unit; the second warning condition is judged based on the operating power of the outdoor unit motor; the third warning condition is judged based on the air pressure value at the air outlet of the outdoor unit. In this way, it is possible to judge whether there are possible fault hazards in the installation or operation of the outdoor unit according to the bracket amplitude, motor operating power and air pressure value at the air outlet of the air conditioner outdoor unit, and when it is determined that there are fault hazards, the maintenance personnel are notified in time for handling, so as to avoid the normal use of users being affected by fault shutdown. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in this application 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 this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the operating principle of the air conditioner provided by this application; Figure 2 It is one of the flow diagrams of the air conditioner fault detection method provided by this application; Figure 3 It is the second of the flow diagrams of the air conditioner fault detection method provided by this application; Figure 4 It is a schematic diagram of the structure of the air conditioner fault detection device provided by this application; Figure 5 It is a schematic diagram of the structure of the electronic device provided by this application. Detailed Embodiments

[0024] To make the purpose, technical solutions and advantages of this application clearer, the following will clearly and completely describe the technical solutions in this application in conjunction with the drawings in this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

[0025] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0026] The following provides a detailed description of the operating principle of the air conditioner involved in the embodiments of this application: As Figure 1 shown, the compressor compresses the refrigerant, and transports it through a pipeline to the condenser. The high-temperature and high-pressure gaseous refrigerant releases heat in the condenser and becomes a medium-temperature and high-pressure liquid refrigerant. Then, the medium-temperature and high-pressure liquid refrigerant is depressurized through a capillary tube (throttling unit) and becomes a low-temperature and low-pressure liquid refrigerant. The low-temperature and low-pressure liquid refrigerant is transported to the evaporator and evaporates from a liquid to a gas, absorbing a large amount of heat during the evaporation process. Finally, the low-temperature and low-pressure gaseous refrigerant in the evaporator is transported to the compressor to participate in the next cycle. When the air conditioner is cooling, the heat exchanger of the outdoor unit is the condenser, and the heat exchanger of the indoor unit is the evaporator; conversely, when the air conditioner is heating, the heat exchanger of the outdoor unit is the evaporator, and the heat exchanger of the indoor unit is the condenser.

[0027] The side-outlet outdoor unit relies on the circulation of air to drive the convection of air to complete the heat exchange process. This process requires a smooth air path. If there are obstacles blocking the air path, it will cause poor ventilation, resulting in a decrease in heat exchange efficiency. In severe cases, it will cause the compressor to overheat and protect, and the air conditioner indoor unit will stop when the set temperature is not reached. The distribution of these obstacles may be in front of the air outlet direction or behind the air outlet direction; it may also be that plastic bags or packaging protective foams are adsorbed on the surface of the heat exchanger, or catkins and other things clog the heat exchanger.

[0028] The actual installation environment or usage environment of the outdoor unit is not very ideal. For example, when installed on the roof, the air passage is blocked by the exterior wall of the roof; when installed in the equipment layer of an office building, part of the air passage is blocked by the safety wall of the equipment layer; the installation environment may be very harsh. When installed in a place where catkins gather, or in a breeding farm or a garbage treatment plant, etc., foreign objects will be adsorbed onto the heat exchanger under the action of negative pressure, resulting in blocked air passages. In such an installation scenario where the air passage circulation is not ideal, it is necessary to lift the machine to raise the air passage so that the safety protection wall cannot block or minimally block the air passage; or increase the air duct to guide the air passage to ensure smooth circulation; or ensure a clean environment, install a foreign object protection net, and clean it regularly, etc.

[0029] However, there will still be some situations that lead to low working efficiency of the outdoor unit, such as the air duct falling off; if the construction unit installs it improperly, resulting in unsmooth air circulation; if due to other unforeseen factors, the air passage is blocked after the outdoor unit is installed, etc. These situations will lead to low working efficiency of the outdoor unit, increased energy consumption, and even the situation where it cannot meet the normal use of users.

[0030] In view of the above technical problems existing in the related art, the embodiment of the present application provides an air conditioner fault detection method, which is a control method for judging whether the installation is reasonable according to the operating state of the outdoor unit of the air conditioner, and timely processes when it is determined that the installation is unreasonable.

[0031] The following will combine the drawings and through specific embodiments and their application scenarios to elaborate in detail on the air conditioner fault detection method provided by the embodiment of the present application.

[0032] As Figure 2 shown, an air conditioner fault detection method provided by the embodiment of the present application may include the following steps 201 and 202: Step 201, obtain the operating parameters of the outdoor unit.

[0033] Among them, the operating parameters include: the amplitude of the motor bracket of the outdoor unit, the operating power of the motor of the outdoor unit, and the air pressure value at the air outlet of the outdoor unit.

[0034] Exemplarily, after the air conditioner is installed, each parameter in the above operating parameters can be monitored in real time during operation, and the installation rationality can be judged according to the monitored parameters. When it is determined that the installation is unreasonable, an alarm message is sent to the server in a timely manner so that the manufacturer can arrange personnel to adjust the installation position or take other remedial measures to avoid affecting the use of users.

[0035] Step 202: Based on the operating parameters, determine whether the operating state of the outdoor unit meets the preset warning conditions, and generate an alarm message when the operating state of the outdoor unit meets the preset warning conditions.

[0036] Among them, the preset warning conditions include: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is judged based on the amplitude of the motor bracket of the outdoor unit; the second warning condition is judged based on the operating power of the motor of the outdoor unit; the third warning condition is judged based on the air pressure value at the air outlet of the outdoor unit.

[0037] Exemplarily, in the embodiments of the present application, the above first warning condition, second warning condition, and third warning condition can be used for judgment. Only when all the above three warning conditions are met simultaneously can it be determined that the air conditioner is not properly installed.

[0038] Exemplarily, before judging whether the air conditioner is properly installed, it is first necessary to ensure that the air conditioner is in a stable operating state to avoid the influence of factors such as startup or mode switching.

[0039] Specifically, in the above step 202, the judgment on whether the air conditioner is in a stable operating state may include the following steps 202a1 and 202a2: Step 202a1: After the air conditioner is powered on and running, obtain the first amplitude of the motor bracket of the outdoor unit at each time point within at least one detection period.

[0040] Among them, the first amplitude includes: a plurality of amplitude values corresponding to each time point.

[0041] Step 202a2: Calculate the mean square deviation of the first amplitude corresponding to each detection period within the at least one detection period to obtain the first calculation result corresponding to each detection period, and determine that the air conditioner is in a stable operating state when the first calculation result corresponding to any detection period is less than the first preset threshold.

[0042] It can be understood that after the air conditioner is powered on, it takes a process for the motor of the outdoor unit to start and run stably. During this process, the speed of the motor gradually increases and the amplitude is not stable. At this time, it is not suitable for detection and judgment. Therefore, the amplitude can be detected periodically, and after the amplitude is stable, subsequent detection can be carried out.

[0043] Exemplarily, in the embodiments of the present application, when the first calculation result obtained within a certain detection period is less than the first preset threshold, it can be determined that the air conditioner is in a stable operating state. After determining that the air conditioner is in a stable operating state, it is possible to judge whether the operating state of the outdoor unit meets the first warning condition.

[0044] Specifically, after the above-mentioned step 202a2, the determination of the first warning condition in the above-mentioned step 202 may further include the following steps 202b and 202c: Step 202b. When the air conditioner is in a stable operation state, calculate the number of times that the amplitude of the outdoor unit motor bracket is greater than a second preset threshold within a target detection period, and the duration during which the amplitude of the outdoor unit motor bracket is greater than the second preset threshold within the target detection period.

[0045] Step 202c. When the number of times is greater than a preset number threshold and the duration is greater than a preset duration threshold, determine that the operation state of the outdoor unit meets the first warning condition.

[0046] Specifically, the installation rationality detection in the above-mentioned step 202b may further include the following step 202b1: Step 202b1. If the number of times within the target detection period is less than or equal to the preset number threshold, and / or the duration is less than or equal to the preset duration threshold, increase the target detection period and perform the next round of detection until a preset end condition is met.

[0047] Wherein, the preset end condition includes any one of the following: the number of times of increasing the target detection period reaches a third preset threshold, and the operation state of the outdoor unit meets the first warning condition.

[0048] Exemplarily, when the target number of times and the target duration within the target detection period do not meet the judgment requirements of the first warning condition, the duration of the target detection period can be increased in the way of increasing a preset duration each time, so as to lower the detection standard. However, the detection standard cannot be reduced without limit. If the number of times of increasing the duration reaches the threshold and still does not meet the requirements of the first warning condition, it can be determined that the installation of the outdoor unit of the air conditioner is reasonable.

[0049] It can be understood that in the embodiments of the present application, since it is necessary to simultaneously meet the above three warning conditions to determine that the installation of the outdoor unit is unreasonable, therefore, if any warning condition is not met, it can be determined that the installation of the outdoor unit is reasonable.

[0050] Specifically, in the above-mentioned step 202, the determination of the second warning condition may include the following steps 202d1 and 202d2: Step 202d1. When the rotational speed fluctuation of the outdoor unit motor is less than a preset rotational speed threshold, obtain multiple power values of the outdoor unit motor.

[0051] Step 202d2: Calculate the mean square deviation of the multiple power values to obtain a second calculation result. When the second calculation result is greater than the preset power threshold, determine that the operating state of the outdoor unit meets the second warning condition.

[0052] Exemplarily, when the rotational speed fluctuation of the outdoor unit motor is less than a preset threshold, it can be determined that the motor is in a stable operating state. At this time, the operating power can be detected to determine whether the operating power of the motor increases abnormally.

[0053] In a possible implementation, the standard operating power of the motor at different rotational speeds can be measured in advance, and the difference between the actual operating power of the motor and the standard operating power is used as the power value corresponding to each time point. That is, the above power value can also be the difference between the actual operating power and the standard operating power.

[0054] Specifically, in step 202 above, the judgment for the third warning condition may include the following steps 202e1 and 202e2: Step 202e1: When the rotational speed fluctuation of the outdoor unit motor is less than a preset rotational speed threshold, obtain the wind pressure value at the air outlet of the outdoor unit.

[0055] Step 202e2: When the wind pressure value rises or falls, determine that the operating state of the outdoor unit meets the third warning condition.

[0056] Among them, when the wind pressure value rises, it is determined that there is an obstacle in the air outlet duct; when the wind pressure value falls, it is determined that there is an obstacle in the air inlet duct.

[0057] It can be understood that when the rotational speed of the outdoor unit motor is unstable, the wind pressure value at the air outlet of the outdoor unit will not be stable either. Therefore, it is necessary to measure and calculate when it is determined that the rotational speed of the outdoor unit motor is stable, and the obtained result is accurate.

[0058] Exemplarily, after obtaining the judgment results of the above three warning conditions, it can be determined whether the operating state of the outdoor unit meets the preset warning conditions.

[0059] Specifically, step 202 above may further include the following step 202f: Step 202f: When the operating state of the outdoor unit meets the first warning condition, the second warning condition, and the third warning condition, determine that the operating state of the outdoor unit meets the preset warning condition.

[0060] Exemplarily, such as Figure 3As shown, when the operating state of the outdoor unit does not meet any one of warning condition 1, warning condition 2, and warning condition 3 (i.e., the above-mentioned first warning condition, second warning condition, and third warning condition), it can be determined that the operating state of the outdoor unit does not meet the preset warning condition, that is, the outdoor unit is reasonably installed.

[0061] Exemplarily, as Figure 3 shown, after determining that the operating state of the outdoor unit meets warning condition 1, warning condition 2, and warning condition 3, an alarm message can be generated to notify the manufacturer to arrange relevant personnel to come for on-site adjustment to avoid various failures caused by unreasonable installation.

[0062] The air conditioner fault detection method provided by the embodiment of the present application, first, obtains the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the motor bracket of the outdoor unit, the operating power of the outdoor unit motor, and the air pressure value at the air outlet of the outdoor unit; then, based on the operating parameters, determines whether the operating state of the outdoor unit meets the preset warning condition, and generates an alarm message when the operating state of the outdoor unit meets the preset warning condition; wherein, the preset warning condition includes: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is determined based on the amplitude of the motor bracket of the outdoor unit; the second warning condition is determined based on the operating power of the outdoor unit motor; the third warning condition is determined based on the air pressure value at the air outlet of the outdoor unit. In this way, it is possible to determine whether there are potential fault hazards in the installation or operation of the outdoor unit of the air conditioner according to the bracket amplitude, motor operating power, and air pressure value at the air outlet of the outdoor unit, and when it is determined that there are fault hazards, notify the maintenance personnel in time for processing to avoid the normal use of users being affected by fault shutdown.

[0063] It should be noted that for the air conditioner fault detection method provided by the embodiment of the present application, the execution subject can be an air conditioner fault detection device, or a control module in the air conditioner fault detection device for executing the air conditioner fault detection method. In the embodiment of the present application, taking the air conditioner fault detection device executing the air conditioner fault detection method as an example, the air conditioner fault detection device provided by the embodiment of the present application is described.

[0064] It should be noted that in the embodiment of the present application, the air conditioner fault detection methods shown in the above respective method drawings are all exemplarily described by taking one drawing in the embodiment of the present application as an example. Specifically in implementation, the air conditioner fault detection methods shown in the above respective method drawings can also be implemented in combination with any other combinable drawings shown in the above embodiments, which will not be elaborated here.

[0065] The air conditioner fault detection device provided by the present application will be described below, and the air conditioner fault detection method described below can be referred to in correspondence with the above description.

[0066] Figure 4 It is a schematic structural diagram of an air conditioner fault detection device provided by an embodiment of the present application. As Figure 4 shown, it specifically includes: An acquisition module 401, configured to acquire the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the motor bracket of the outdoor unit, the operating power of the outdoor unit motor, and the air pressure value at the air outlet of the outdoor unit; a detection module 402, configured to determine whether the operating state of the outdoor unit meets a preset warning condition based on the operating parameters; an alarm module 403, configured to generate an alarm message when the operating state of the outdoor unit meets the preset warning condition; wherein, the preset warning conditions include: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is determined based on the amplitude of the motor bracket of the outdoor unit; the second warning condition is determined based on the operating power of the outdoor unit motor; the third warning condition is determined based on the air pressure value at the air outlet of the outdoor unit.

[0067] Optionally, the detection module 402 is specifically configured to, after the air conditioner is powered on and running, acquire the first amplitude of the motor bracket of the outdoor unit at each time point within at least one detection period; the first amplitude includes: a plurality of amplitude values corresponding to each time point; the detection module 402 is further specifically configured to calculate the mean square deviation of the first amplitude corresponding to each detection period within the at least one detection period, obtain the first calculation result corresponding to each detection period, and determine that the air conditioner is in a stable running state when the first calculation result corresponding to any detection period is less than a first preset threshold.

[0068] Optionally, the detection module 402 is specifically configured to, when the air conditioner is in a stable running state, calculate the number of times that the amplitude of the motor bracket of the outdoor unit in a target detection period is greater than a second preset threshold, and the duration for which the amplitude of the motor bracket of the outdoor unit in the target detection period is greater than the second preset threshold; the detection module 402 is further specifically configured to determine that the operating state of the outdoor unit meets the first warning condition when the number of times is greater than a preset number threshold and the duration is greater than a preset duration threshold.

[0069] Optionally, the detection module 402 is specifically configured to increase the target detection period and perform the next round of detection until a preset end condition is met if the number of times within the target detection period is less than or equal to the preset number threshold and / or the duration is less than or equal to the preset duration threshold; where the preset end condition includes any one of the following: the number of times of increasing the target detection period reaches the third preset threshold, and the operating state of the outdoor unit meets the first warning condition.

[0070] Optionally, the detection module 402 is specifically configured to obtain multiple power values of the outdoor unit motor when the rotational speed fluctuation of the outdoor unit motor is less than a preset rotational speed threshold; the detection module 402 is further specifically configured to calculate the mean square deviation of the multiple power values to obtain a second calculation result, and determine that the operating state of the outdoor unit meets the second warning condition when the second calculation result is greater than the preset power threshold.

[0071] Optionally, the detection module 402 is specifically configured to obtain the wind pressure value at the air outlet of the outdoor unit when the rotational speed fluctuation of the outdoor unit motor is less than a preset rotational speed threshold; the detection module 402 is further specifically configured to determine that the operating state of the outdoor unit meets the third warning condition when the wind pressure value rises or falls; where when the wind pressure value rises, it is determined that there is an obstacle in the air outlet duct; when the wind pressure value falls, it is determined that there is an obstacle in the air inlet duct.

[0072] The air conditioner fault detection device provided in this application first obtains the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the outdoor unit motor bracket, the operating power of the outdoor unit motor, and the wind pressure value at the air outlet of the outdoor unit; then, based on the operating parameters, it determines whether the operating state of the outdoor unit meets the preset warning conditions, and generates an alarm message when the operating state of the outdoor unit meets the preset warning conditions; where the preset warning conditions include: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is determined based on the amplitude of the outdoor unit motor bracket; the second warning condition is determined based on the operating power of the outdoor unit motor; the third warning condition is determined based on the wind pressure value at the air outlet of the outdoor unit. In this way, it is possible to determine whether there are potential fault hazards in the installation or operation of the outdoor unit according to the bracket amplitude, motor operating power, and wind pressure value at the air outlet of the air conditioner outdoor unit, and when it is determined that there are fault hazards, notify the maintenance personnel in time for processing to avoid the normal use of users being affected by a fault shutdown.

[0073] Figure 5 Illustrated is a schematic physical structure diagram of an electronic device, and the electronic device may be the above air conditioner, such as Figure 5As shown in the figure, the electronic device may include: a processor 510, a communications interface 520, a memory 530, and a communication bus 540. Among them, the processor 510, the communications interface 520, and the memory 530 complete communication with each other through the communication bus 540. The processor 510 may call the logical instructions in the memory 530 to execute the air conditioner fault detection method, which includes: obtaining the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the motor bracket of the outdoor unit, the operating power of the outdoor unit motor, and the air pressure value at the air outlet of the outdoor unit; based on the operating parameters, determining whether the operating state of the outdoor unit meets the preset warning conditions, and generating an alarm message when the operating state of the outdoor unit meets the preset warning conditions; where the preset warning conditions include: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is determined based on the amplitude of the motor bracket of the outdoor unit; the second warning condition is determined based on the operating power of the outdoor unit motor; the third warning condition is determined based on the air pressure value at the air outlet of the outdoor unit.

[0074] In addition, when the logical instructions in the above-mentioned memory 530 can be implemented in the form of software function units and sold or used as an independent product, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing 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 application. 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.

[0075] On the other hand, the present application also provides a computer program product. The computer program product includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the air conditioner fault detection method provided by the above-mentioned various methods. The method includes: obtaining the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the motor bracket of the outdoor unit, the operating power of the outdoor unit motor, and the air pressure value at the air outlet of the outdoor unit; based on the operating parameters, determining whether the operating state of the outdoor unit meets a preset warning condition, and generating an alarm message when the operating state of the outdoor unit meets the preset warning condition; wherein, the preset warning condition includes: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is determined based on the amplitude of the motor bracket of the outdoor unit; the third warning condition is determined based on the air pressure value at the air outlet of the outdoor unit.

[0076] In yet another aspect, the present application also provides a 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 air conditioner fault detection method provided above. The method includes: obtaining the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the motor bracket of the outdoor unit, the operating power of the outdoor unit motor, and the air pressure value at the air outlet of the outdoor unit; based on the operating parameters, determining whether the operating state of the outdoor unit meets a preset warning condition, and generating an alarm message when the operating state of the outdoor unit meets the preset warning condition; wherein, the preset warning condition includes: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is determined based on the amplitude of the motor bracket of the outdoor unit; the second warning condition is determined based on the operating power of the outdoor unit motor; the third warning condition is determined based on the air pressure value at the air outlet of the outdoor unit.

[0077] 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. Those of ordinary skill in the art can understand and implement it without creative labor.

[0078] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application 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 the foregoing embodiments, or perform equivalent replacements on some of the technical features; and 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 the embodiments of the present application.

Claims

1. An outdoor unit fault detection method, characterized in that, Including: Obtaining the operating parameters of the outdoor unit; The operating parameters include: the amplitude of the motor bracket of the outdoor unit, the operating power of the outdoor unit motor, and the air pressure value at the air outlet of the outdoor unit; Based on the operating parameters, determining whether the operating state of the outdoor unit meets the preset warning conditions, and generating a warning message when the operating state of the outdoor unit meets the preset warning conditions; Wherein, the preset warning conditions include: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is determined based on the amplitude of the motor bracket of the outdoor unit; the second warning condition is determined based on the operating power of the outdoor unit motor; the third warning condition is determined based on the air pressure value at the air outlet of the outdoor unit.

2. The method according to claim 1, characterized in that, The determining whether the operating state of the outdoor unit meets the preset warning conditions based on the operating parameters includes: After the air conditioner is powered on and running, obtaining the first amplitude of the motor bracket of the outdoor unit at each time point within at least one detection period; the first amplitude includes: a plurality of amplitude values corresponding to each time point; Calculating the mean square deviation of the first amplitude corresponding to each detection period within the at least one detection period to obtain a first calculation result corresponding to each detection period, and determining that the air conditioner is in a stable running state when the first calculation result corresponding to any detection period is less than a first preset threshold.

3. The method according to claim 1 or 2, characterized in that The determining whether the operating state of the outdoor unit meets the preset warning conditions based on the operating parameters includes: When the air conditioner is in a stable running state, calculating the number of times that the amplitude of the motor bracket of the outdoor unit in the target detection period is greater than a second preset threshold, and the continuous duration that the amplitude of the motor bracket of the outdoor unit in the target detection period is greater than the second preset threshold; When the number is greater than a preset number threshold and the continuous duration is greater than a preset duration threshold, determining that the operating state of the outdoor unit meets the first warning condition.

4. The method according to claim 3, wherein The determining whether the operating state of the outdoor unit meets the preset warning conditions based on the operating parameters further includes: If the number in the target detection period is less than or equal to the preset number threshold, and / or the continuous duration is less than or equal to the preset duration threshold, increasing the target detection period and performing the next round of detection until a preset end condition is met; Wherein, the preset end condition includes any one of the following: the number of times of increasing the target detection period reaches a third preset threshold, and the operating state of the outdoor unit meets the first warning condition.

5. The method according to claim 1, characterized in that The determining whether the operating state of the outdoor unit meets the preset warning conditions based on the operating parameters includes: When the rotational speed fluctuation of the outdoor unit motor is less than a preset rotational speed threshold, obtaining a plurality of power values of the outdoor unit motor; Calculating the mean square deviation of the plurality of power values to obtain a second calculation result, and determining that the operating state of the outdoor unit meets the second warning condition when the second calculation result is greater than the preset power threshold.

6. The method according to claim 1, wherein The determining whether the operating state of the outdoor unit meets the preset warning conditions based on the operating parameters includes: When the rotational speed fluctuation of the outdoor unit motor is less than a preset rotational speed threshold, obtain the wind pressure value at the air outlet of the outdoor unit; When the wind pressure value rises or falls, determine that the operating state of the outdoor unit meets the third warning condition; Wherein, when the wind pressure value rises, it is determined that there is an obstacle in the air outlet duct; when the wind pressure value falls, it is determined that there is an obstacle in the air inlet duct.

7. An air conditioner control device, characterized in that, The device includes: An acquisition module, configured to acquire the operating parameters of the outdoor unit; the operating parameters include: the amplitude of the outdoor unit motor bracket, the operating power of the outdoor unit motor, and the wind pressure value at the air outlet of the outdoor unit; A detection module, configured to determine whether the operating state of the outdoor unit meets a preset warning condition based on the operating parameters; An alarm module, configured to generate an alarm message when the operating state of the outdoor unit meets the preset warning condition; Wherein, the preset warning conditions include: a first warning condition, a second warning condition, and a third warning condition; the first warning condition is determined based on the amplitude of the outdoor unit motor bracket; the second warning condition is determined based on the operating power of the outdoor unit motor; the third warning condition is determined based on the wind pressure value at the air outlet of the outdoor unit.

8. The device according to claim 7, wherein The detection module is specifically configured to, after the air conditioner is powered on and operates, obtain the first amplitude of the outdoor unit motor bracket at each time point within at least one detection period; the first amplitude includes: a plurality of amplitude values corresponding to each time point; The detection module is further specifically configured to calculate the mean square deviation of the first amplitude corresponding to each detection period within the at least one detection period, obtain the first calculation result corresponding to each detection period, and determine that the air conditioner is in a stable operating state when the first calculation result corresponding to any detection period is less than a first preset threshold.

9. An air conditioner, characterized in that, It includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of the air conditioner fault detection method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, characterized in that, A computer program is stored thereon. When the computer program is executed by the processor, the steps of the air conditioner fault detection method according to any one of claims 1 to 7 are implemented.

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