Monitoring method, monitoring device, air conditioner and storage medium

By detecting the decrease in the outdoor unit's airflow and the rate of change in the difference between the outlet air temperature and the ambient temperature during the air conditioner's heating mode, the false alarm problem of dirt blockage monitoring during air conditioner heating has been solved, and more accurate dirt blockage judgment has been achieved.

CN119042772BActive Publication Date: 2025-11-21GUANGDONG TCL INTELLIGENT HEATING & VENTILATING EQUIP CO LTD
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Patent Information

Application Number
CN202411245629.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-05
Publication Date
2025-11-21
Estimated Expiration
2044-09-05

AI Technical Summary

Technical Problem

In existing technologies, when an air conditioner is heating, the outdoor unit is prone to becoming dirty and clogged, and the monitoring parameters are easily affected by frost, leading to false alarms.

Method used

By detecting the decrease in the actual air volume of the outdoor unit every first preset time interval after the air conditioner is turned on in heating mode, and combining the rate of change of the difference between the air outlet temperature and the ambient temperature, it is determined whether the outdoor unit is dirty or frosted.

Benefits of technology

It improves the accuracy of outdoor unit dirt and blockage monitoring, avoids misjudgment, and ensures the reliability of monitoring results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of monitoring method, monitoring device, air conditioner and storage medium, the monitoring method includes after air conditioner opens heating mode, every first preset time length, whether the actual air volume of outdoor unit attenuates is determined;According to the air temperature and ambient temperature of outdoor unit in the first preset time length corresponding to the actual air volume attenuation, it is determined whether dirty blockage occurs to the outdoor unit.The application determines whether dirty blockage occurs to the outdoor unit according to the air temperature and ambient temperature of outdoor unit when air conditioner is in heating mode in the case where the air volume of outdoor unit attenuates;Further, the above scheme can exclude some interference conditions, improve the accuracy of outdoor unit dirty blockage monitoring, and avoid misjudgment.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning equipment, in particular to a monitoring method, a monitoring device, an air conditioner and a storage medium. BACKGROUND

[0002] Air conditioner, namely air conditioner, is a device for artificially adjusting and controlling the temperature, humidity, flow rate and other parameters of the air in the environment of a building or structure. The air conditioner generally includes an indoor unit and an outdoor unit, and the outdoor unit mainly includes a compressor, a condenser and a fan and other components, which are used to provide heat exchange medium for the indoor unit to realize the heat exchange function of the indoor unit. However, since the outdoor unit is generally arranged outdoors, the outdoor unit often needs to exchange heat with outdoor air for a long time, so it is easy to accumulate dust and be dirty and blocked.

[0003] In the prior art, in order to monitor whether the air conditioner is dirty and blocked, the parameters such as the rotation speed, power and pressure of the outdoor fan are monitored. However, since the outdoor unit is involved in the heating of the air conditioner, the outdoor unit is prone to frost and other conditions, which will affect the change of the above parameters and easily cause false positives of the dirty and blocked condition. SUMMARY

[0004] The main purpose of the embodiments of the present application is to provide a monitoring method, a monitoring device, an air conditioner and a storage medium, which aims to improve the technical problem that the dirty and blocked condition is easily misjudged in the prior art when the air conditioner is heating.

[0005] The embodiments of the present application provide a monitoring method, comprising:

[0006] After the air conditioner starts the heating mode, every first preset time interval, it is determined whether the actual air volume of the outdoor unit is attenuated;

[0007] After it is determined that the actual air volume is attenuated, according to the outdoor air temperature and the environment temperature of the outdoor unit within the first preset time interval corresponding to the attenuation of the actual air volume, it is determined whether the outdoor unit is dirty and blocked.

[0008] In some embodiments of the present application, the determination of whether the outdoor unit is dirty and blocked according to the outdoor air temperature and the environment temperature of the outdoor unit within the first preset time interval corresponding to the attenuation of the actual air volume comprises:

[0009] Obtaining the change rate of the difference between the outdoor air temperature and the environment temperature within the first preset time interval corresponding to the attenuation of the actual air volume;

[0010] According to the first threshold and the change rate, it is determined whether the outdoor unit is dirty and blocked;

[0011] determining that the outdoor unit is dirty and blocked if the change rate is less than or equal to the first threshold value;

[0012] determining that the outdoor unit is frosted if the change rate is greater than the first threshold value.

[0013] In some embodiments of the present application, the change rate of the difference between the outlet air temperature and the ambient temperature within the first preset time period corresponding to the actual air volume attenuation is determined.

[0014] In the first preset time period, the initial difference between the outlet air temperature and the ambient temperature at the beginning of the first preset time period is obtained, and the terminal difference between the outlet air temperature and the ambient temperature at the end of the preset time period is obtained.

[0015] The change rate is determined according to the initial difference, the terminal difference and the first preset time period.

[0016] In some embodiments of the present application, the determination of whether the actual outlet air volume of the outdoor unit is attenuated includes:

[0017] The actual outlet air volume under the current damper of the air conditioner is obtained.

[0018] The actual outlet air volume is determined to be attenuated according to the actual outlet air volume and the standard outlet air volume under the current damper.

[0019] In some embodiments of the present application, the determination of whether the actual outlet air volume is attenuated according to the actual outlet air volume and the standard outlet air volume under the current damper includes:

[0020] The actual outlet air volume is determined to be attenuated according to the ratio of the actual outlet air volume to the standard outlet air volume.

[0021] If the ratio is greater than or equal to a preset value, it is determined that the actual outlet air volume is not attenuated.

[0022] If the ratio is less than the preset value, it is determined that the actual outlet air volume is attenuated.

[0023] In some embodiments of the present application, after determining that the actual outlet air volume is attenuated, the outlet air temperature and the ambient temperature of the outdoor unit within the first preset time period corresponding to the actual air volume attenuation are determined to determine whether the outdoor unit is dirty and blocked.

[0024] After the actual air volume is attenuated, the difference between the outlet air temperature and the ambient temperature is obtained.

[0025] The outdoor unit is determined to be dirty and blocked according to the difference and a second threshold value.

[0026] If the difference is less than or equal to the second threshold value, it is determined that dirty blocking occurs in the outdoor unit.

[0027] If the difference is greater than the second threshold value, it is determined that frosting exists in the outdoor unit.

[0028] In some embodiments of the present application, the monitoring method further comprises:

[0029] When the air conditioner is in the cooling mode, it is determined whether the actual air outlet amount decays;

[0030] If the actual air outlet amount decays, it is determined that dirty blocking occurs in the outdoor unit.

[0031] If the actual air outlet amount does not decay, it is determined that dirty blocking does not occur in the outdoor unit.

[0032] In some embodiments of the present application, a monitoring device is further provided, comprising:

[0033] An acquisition module is configured to acquire the actual air outlet amount of the outdoor unit every first preset time length when the air conditioner is in the heating mode; the acquisition module is further configured to acquire the air outlet temperature and the ambient temperature of the outdoor unit within the first preset time length corresponding to the decay of the actual air outlet amount after it is determined that the actual air outlet amount decays.

[0034] A judgment module is configured to determine whether the actual air outlet amount of the outdoor unit decays when the air conditioner is in the heating mode; the judgment module is further configured to determine whether dirty blocking occurs in the outdoor unit according to the air outlet temperature and the ambient temperature of the outdoor unit within the first preset time length corresponding to the decay of the actual air outlet amount after it is determined that the actual air outlet amount decays.

[0035] In some embodiments of the present application, an air conditioner is further provided, comprising a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program in the memory to execute the steps in the above monitoring method.

[0036] In some embodiments of the present application, a storage medium is further provided, the storage medium stores a computer program, and the computer program is loaded by a processor to execute the steps in the above monitoring method.

[0037] The embodiment of the present application provides a monitoring method, device, air conditioner and storage medium, the monitoring method is used for determining whether the outdoor unit is dirty and blocked according to the outdoor unit outlet air temperature and the environment temperature when the air conditioner is in the heating mode and the outdoor unit outlet air volume is determined to be attenuated. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0039] Fig. 1 The flowchart of the monitoring method of one embodiment of the present application is shown in the figure.

[0040] Fig. 2 The structural schematic diagram of the monitoring device of one embodiment of the present application is shown in the figure.

[0041] Fig. 3 The structural schematic diagram of the air conditioner of one embodiment of the present application is shown in the figure.

[0042] The figure mark: 10, monitoring device; 100, acquisition module; 200, judgment module; 601, processor; 602, memory; 603, power supply; 604, input unit. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0044] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indications also change accordingly.

[0045] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In addition, if the present application has a description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0047] As shown in Figs. 1-3 The present application provides a monitoring method, comprising:

[0048] S200, after the air conditioner starts the heating mode, every first preset time length, determine whether the actual air volume of the outdoor unit is attenuated.

[0049] Among them, the actual air volume of the outdoor unit is essentially the actual air volume of the outdoor fan of the air conditioner. The actual air volume of the outdoor fan will change obviously when the air conditioner is dirty and blocked, but since the air conditioner is heating, the outdoor unit is prone to frosting phenomenon, which will also affect the actual air volume of the outdoor fan.

[0050] Among them, the actual air volume of the outdoor unit can be obtained by directly setting an air volume sensor at the air outlet of the outdoor unit.

[0051] Among them, the first preset time length is pre-existing in the control center of the air conditioner, that is, by every first preset time length, determine whether the actual air volume of the outdoor unit is attenuated, so as to periodically monitor the actual air volume of the outdoor unit, so as to discover in time when the air volume is attenuated.

[0052] As shown, at 8:00, the air conditioner starts the heating mode, and every 5 minutes, it determines whether the actual air volume of the outdoor unit has decayed, i.e., at 8:05, it determines whether the actual air volume of the outdoor unit has decayed.

[0053] S300, after determining that the actual air volume has decayed, according to the outdoor air temperature and the environment temperature of the outdoor unit within the first preset time period corresponding to the actual air volume decay, it determines whether the outdoor unit has dirty blockage.

[0054] The environment temperature can be obtained by a temperature sensor arranged outside the outdoor unit, and the outdoor air temperature can be obtained by a temperature sensor arranged near the air outlet of the outdoor unit. Since the air conditioner is in the heating mode, after the actual air volume decays, the outdoor air temperature and the environment temperature are used to determine whether the air conditioner has dirty blockage.

[0055] The outdoor air temperature and the environment temperature of the outdoor unit within the first preset time period corresponding to the actual air volume decay are used to determine whether the outdoor unit has dirty blockage. For example, if the first preset time period is 5 minutes, the outdoor air temperature and the environment temperature of the outdoor unit within 8:00-8:05 are used to determine whether the outdoor unit has dirty blockage.

[0056] It can be understood that when the air conditioner is in the heating mode, after determining that the air volume of the outdoor unit has decayed, the outdoor air temperature and the environment temperature of the outdoor unit are used to determine whether the outdoor unit has dirty blockage. This can exclude some interference conditions, improve the accuracy of monitoring the dirty blockage of the outdoor unit, and avoid misjudgment.

[0057] In some embodiments, according to the outdoor air temperature and the environment temperature of the outdoor unit within the first preset time period corresponding to the actual air volume decay, it is determined whether the outdoor unit has dirty blockage, including:

[0058] The change rate of the difference between the outdoor air temperature and the environment temperature within the first preset time period corresponding to the actual air volume decay is obtained.

[0059] The change rate of the difference between the outdoor air temperature and the environment temperature is generally calculated from the difference between two different time points. The difference between the outdoor air temperature and the environment temperature can reflect the temperature change of the airflow before and after passing through the condenser. Based on the outdoor air temperature and the environment temperature within the first preset time period, the status of the condenser can be reflected in time. If frost appears on the condenser, the difference between the outdoor air temperature and the environment temperature will change greatly, and if no frost appears on the condenser, the difference between the outdoor air temperature and the environment temperature will remain constant.

[0060] The outflow temperature is generally the temperature of the condenser near the outdoor fan and is generally obtained by a temperature sensor arranged at the outlet of the outdoor unit. The ambient temperature is generally obtained by a temperature sensor arranged at the condenser away from the outdoor fan.

[0061] According to the first threshold and the change rate, it is determined whether the outdoor unit is dirty or blocked.

[0062] The first threshold is a preset value pre-stored in the control center of the air conditioner, which is used to determine whether the change rate exceeds a certain threshold. If the change rate is less than or equal to the first threshold, it means that the difference between the outflow temperature and the ambient temperature does not change much in the first preset time period. If the change rate is greater than the first threshold, it means that the difference between the outflow temperature and the ambient temperature changes greatly in the first preset time period.

[0063] If the change rate is less than or equal to the first threshold, it is determined that the outdoor unit is dirty or blocked.

[0064] If the change rate is greater than the first threshold, it is determined that the outdoor unit is frosty.

[0065] That is, by comparing the change rate with the first threshold, it can be determined whether the outdoor unit is frosty in the case of actual wind volume attenuation, and thus the outdoor unit can be more accurately determined whether it is dirty or blocked.

[0066] In some embodiments, the change rate of the difference between the outflow temperature and the ambient temperature in the first preset time period corresponding to the actual wind volume attenuation is obtained, including:

[0067] In the first preset time period, the starting difference between the outflow temperature and the ambient temperature at the beginning of the first preset time period is obtained, and the ending difference between the outflow temperature and the ambient temperature at the end of the preset time period is obtained.

[0068] Wherein, taking 24 hours of a day as a reference, the first preset time period is 5 minutes, and the air conditioner is turned on in heating mode at 8:00, then the actual wind volume of the first preset time period should be determined at 8:05, and if the actual wind volume is determined to be attenuated at 8:05, the change rate of the difference between the outflow temperature and the ambient temperature in the current first preset time period is obtained. That is, the difference between the outflow temperature and the ambient temperature at 8:00 is obtained, which is recorded as the starting difference; the difference between the outflow temperature and the ambient temperature at 8:05 is obtained, which is recorded as the ending difference.

[0069] According to the starting difference, the ending difference and the first preset time period, the change rate is determined.

[0070] According to the above description, it can be known that the change rate of the difference between the outflow temperature and the ambient temperature in the first preset time period = (starting difference - ending difference) / first preset time period.

[0071] In some embodiments, determining whether the actual air volume of the outdoor unit is attenuated comprises:

[0072] Obtaining the actual air volume of the air conditioner under the current air damper.

[0073] Wherein, the rotation speed of each air damper of the air conditioner is different, thereby causing the air volume of the air conditioner under each air damper to be different. Obtaining the actual air volume under the current air damper can accurately determine according to the air volume under the current air damper, thereby improving the accuracy of determining whether the actual air volume is attenuated.

[0074] According to the actual air volume and the standard air volume under the current air damper, determining whether the actual air volume is attenuated.

[0075] Wherein, the standard air volume under the current air damper is the air volume of the air conditioner under the current air damper without dirty blockage or frosting, and if there is a difference between the actual air volume under the current air damper and the standard air volume, it can be determined whether the actual air volume is attenuated.

[0076] In some embodiments, according to the actual air volume and the standard air volume under the current air damper, determining whether the actual air volume is attenuated comprises:

[0077] According to the ratio of the actual air volume to the standard air volume, determining whether the actual air volume is attenuated.

[0078] When the actual air volume is attenuated, the actual air volume must be less than the standard air volume, but due to some installation problems, the actual air volume may be slightly smaller than the standard air volume, therefore, through the ratio of the actual air volume to the standard air volume, the attenuation of the actual air volume can be directly reflected.

[0079] That is, if the ratio of the actual air volume to the standard air volume is less than a preset value, it is determined that the actual air volume is attenuated, and if the actual air volume is greater than or equal to the preset value, it is determined that the actual air volume is not attenuated.

[0080] For example, the preset value = 0.98; the actual air volume / standard air volume = 0.95, it is determined that the actual air volume is attenuated.

[0081] If the ratio is greater than or equal to the preset value, it is determined that the actual air volume is not attenuated;

[0082] If the ratio is less than the preset value, it is determined that the actual air volume is attenuated.

[0083] In some embodiments, after determining that the actual air volume is attenuated, according to the outdoor unit air outlet temperature and the environment temperature within a first preset time corresponding to the attenuation of the actual air volume, determining whether the outdoor unit is dirty blocked, comprising:

[0084] After the actual air volume is attenuated, the difference between the outlet air temperature and the ambient temperature is obtained.

[0085] wherein, generally, the ambient temperature is the temperature of the side of the condenser away from the external fan, the outlet air temperature is the temperature near the outlet, and the actual temperature is the temperature of the side of the condenser close to the external fan. In the case where the condenser does not frost, the temperature of the side of the condenser away from the external fan will not change much when the air is drawn to the side of the condenser by the external fan. However, if the condenser frosts, the air flow through the condenser chamber will be rapidly cooled, resulting in a large difference in temperature between the two sides. Therefore, whether the condenser frosts can be determined by the difference between the outlet air temperature and the ambient temperature.

[0086] According to the difference and the second threshold value, whether the outdoor unit is dirty or blocked is determined.

[0087] wherein, according to the difference between the outlet air temperature and the ambient temperature and the second threshold value, whether the outdoor unit is dirty or blocked is determined, if the difference is greater than the second threshold value, it means that the outlet air temperature and the ambient temperature differ too much, and it can be determined that the outdoor unit frosts, if the difference is less than or equal to the second threshold value, it means that the outlet air temperature and the ambient temperature do not differ much, and it means that the outdoor unit is dirty or blocked.

[0088] if the difference is less than or equal to the second threshold value, it is determined that the outdoor unit is dirty or blocked;

[0089] if the difference is greater than the second threshold value, it is determined that the outdoor unit frosts.

[0090] In some embodiments, the monitoring method further comprises:

[0091] when the air conditioner is in the cooling mode, every first preset time interval, whether the actual air volume is attenuated is determined.

[0092] wherein, in the cooling mode, the air conditioner does not frost, therefore, when the actual air volume is attenuated, it can be determined that the outdoor unit is dirty or blocked. The method for determining whether the actual air volume is attenuated can refer to the above air volume ratio determination method.

[0093] if the actual air volume is attenuated, it is determined that the outdoor unit is dirty or blocked;

[0094] if the actual air volume is not attenuated, it is determined that the outdoor unit is not dirty or blocked.

[0095] In some embodiments, the present application also provides a monitoring device 10, comprising an acquisition module 100 and a determination module 200. The acquisition module 100 is configured to acquire an actual air volume of an outdoor unit every first preset time interval when the air conditioner is in a heating mode. The acquisition module 100 is further configured to acquire an outlet air temperature and an ambient temperature of the outdoor unit within a first preset time interval corresponding to an actual air volume decay after determining that the actual air volume decays. The determination module 200 is configured to determine whether the actual air volume of the outdoor unit decays when the air conditioner is in the heating mode. The determination module 200 is further configured to determine whether the outdoor unit is dirty and blocked according to the outlet air temperature and the ambient temperature of the outdoor unit within the first preset time interval corresponding to the actual air volume decay after determining that the actual air volume decays.

[0096] In some embodiments, the present application also provides an air conditioner, which can include a processor 601 with one or more processing cores, a memory 602 with one or more computer readable storage media, a power supply 603, an input unit 604, and the like. Those skilled in the art can understand that the structure of the air conditioner described above does not constitute a limitation on the air conditioner, and can include more or fewer components, or combine certain components, or different component arrangements. Among them:

[0097] The processor 601 is the control center of the air conditioner, which connects all parts of the air conditioner through various interfaces and lines, executes the software programs and / or modules stored in the memory 602, and calls the data stored in the memory 602, to perform various functions and process data of the air conditioner, thereby overall monitoring the air conditioner. Optionally, the processor 601 can include one or more processing cores; preferably, the processor 601 can integrate an application processor 601 and a modem processor 601, wherein the application processor 601 mainly processes the operating system, user interface, and computer programs, etc., and the modem processor 601 mainly processes wireless communication. It can be understood that the above-mentioned modem processor 601 can also not be integrated into the processor 601.

[0098] The memory 602 can be used to store software programs and modules, and the processor 601 executes various function applications and data processing by running the software programs and modules stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store the operating system, at least one computer program required by the function (such as sound playing function, image playing function, etc.), etc.; the data storage area can store the data created according to the use of the server, etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage device. Accordingly, the memory can also include a memory controller to provide access for the processor 601 to the memory.

[0099] The air conditioner further comprises a power supply 603 for supplying power to each component. Preferably, the power supply 603 can be logically connected to the processor 601 through a power management system, so that the power management system can be used to manage charging, discharging, power consumption management and the like. The power supply can further comprise one or more than one direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator and the like.

[0100] The air conditioner can further comprise an input unit 604 for receiving inputted digital or character information and generating keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.

[0101] Although not shown, the air conditioner can further comprise a display unit and the like, which will not be described herein. In the embodiment, the processor 601 in the air conditioner loads one or more than one executable file corresponding to the processes of the computer program into the memory 602 according to the following instructions, and executes the computer program stored in the memory 602 by the processor 601 to perform the following steps:

[0102] After the air conditioner is started in the heating mode, every first preset time length, it is determined whether the actual air volume of the outdoor unit is attenuated.

[0103] After it is determined that the actual air volume is attenuated, according to the outdoor unit air outlet temperature and the ambient temperature within the first preset time length corresponding to the actual air volume attenuation, it is determined whether the outdoor unit is dirty and blocked.

[0104] The air conditioner determines whether the outdoor unit is dirty and blocked according to the outdoor unit air outlet temperature and the ambient temperature when it is determined that the outdoor unit air volume is attenuated when the air conditioner is in the heating mode. Further, the above scheme can exclude some interference conditions, improve the accuracy of outdoor unit dirty and blocked monitoring, and avoid misjudgment.

[0105] Those skilled in the art can understand that all or part of the steps in any of the methods of the above embodiments can be completed by a computer program, or by a computer program controlling related hardware, which can be stored in a computer readable storage medium and loaded and executed by the processor 601.

[0106] In some embodiments, the present application further provides a storage medium storing a computer program, which is loaded and executed by the processor to perform the following steps:

[0107] After the air conditioner is started in the heating mode, every first preset time length, it is determined whether the actual air volume of the outdoor unit is attenuated.

[0108] After determining that the actual air volume has attenuated, whether the outdoor unit has dirty blockage is determined according to the outdoor unit air outlet temperature and the ambient temperature within a first preset time period corresponding to the actual air volume attenuation.

[0109] Through the above steps, in the heating mode of the air conditioner, when it is determined that the outdoor unit air volume has attenuated, whether the outdoor unit has dirty blockage is determined according to the outdoor unit air outlet temperature and the ambient temperature. Further, the above scheme can exclude some interference conditions, improve the accuracy of outdoor unit dirty blockage monitoring, and avoid misjudgment.

[0110] Those skilled in the art can understand that any reference to memory, storage, database or other medium used in each embodiment provided by the present application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synch link), DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM) and the like.

[0111] Due to the computer program stored in the storage medium, the steps in the air conditioner control method of any embodiment provided by the present application can be executed, and the beneficial effects of the air conditioner control method of any embodiment provided by the present application can be achieved. Details are described in the foregoing embodiments, which will not be repeated here.

[0112] The specific implementation of each operation can refer to the foregoing embodiments, which will not be repeated here.

[0113] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can refer to the detailed description of other embodiments above, which will not be repeated here.

[0114] The above merely describes optional embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A monitoring method characterized by, The method comprises the following steps: After the air conditioner is started in the heating mode, every first preset time interval, it is determined whether the actual air volume of the outdoor unit is attenuated; After it is determined that the actual air volume is attenuated, according to the outdoor air temperature and the ambient temperature of the outdoor unit within the first preset time interval corresponding to the attenuation of the actual air volume, it is determined whether the outdoor unit is dirty and blocked; The determination of whether the outdoor unit is dirty and blocked according to the outdoor air temperature and the ambient temperature of the outdoor unit within the first preset time interval corresponding to the attenuation of the actual air volume comprises: Obtain the change rate of the difference between the outdoor air temperature and the ambient temperature within the first preset time interval corresponding to the attenuation of the actual air volume; According to the first threshold value and the change rate, it is determined whether the outdoor unit is dirty and blocked; If the change rate is less than or equal to the first threshold value, it is determined that the outdoor unit is dirty and blocked; If the change rate is greater than the first threshold value, it is determined that the outdoor unit is frosting.

2. The monitoring method according to claim 1, characterized in that, The determination of the change rate of the difference between the outdoor air temperature and the ambient temperature within the first preset time interval corresponding to the attenuation of the actual air volume comprises: Within the first preset time interval, the initial difference between the outdoor air temperature and the ambient temperature at the beginning of the first preset time interval is obtained, and the terminal difference between the outdoor air temperature and the ambient temperature at the end of the first preset time interval is obtained; According to the initial difference, the terminal difference and the first preset time interval, the change rate is determined.

3. The monitoring method of claim 1, wherein, The determination of whether the actual air volume of the outdoor unit is attenuated comprises: Obtain the actual air volume of the air conditioner under the current damper; According to the actual air volume and the standard air volume under the current damper, it is determined whether the actual air volume is attenuated.

4. The monitoring method according to claim 3, characterized in that, The determination of whether the actual air volume is attenuated according to the actual air volume and the standard air volume under the current damper comprises: According to the ratio of the actual air volume to the standard air volume, it is determined whether the actual air volume is attenuated; If the ratio is greater than or equal to a preset value, it is determined that the actual air volume is not attenuated; If the ratio is less than the preset value, it is determined that the actual air volume is attenuated.

5. The monitoring method of claim 1, wherein, The determination of whether the outdoor unit is dirty and blocked according to the outdoor air temperature and the ambient temperature of the outdoor unit within the first preset time interval corresponding to the attenuation of the actual air volume after it is determined that the actual air volume is attenuated comprises: After the actual air volume is attenuated, the difference between the outdoor air temperature and the ambient temperature is obtained; According to the difference and the second threshold value, it is determined whether the outdoor unit is dirty and blocked; If the difference is less than or equal to the second threshold value, it is determined that the outdoor unit is dirty and blocked; If the difference is greater than the second threshold value, it is determined that the outdoor unit is frosting.

6. The monitoring method according to any one of claims 1 to 5, characterized in that, The monitoring method further comprises: When the air conditioner is in the cooling mode, every first preset time interval, it is determined whether the actual air volume is attenuated; If the actual air volume is attenuated, it is determined that the outdoor unit is dirty and blocked; If the actual air volume does not attenuate, it is determined that the outdoor unit does not have dirty blockage.

7. A monitoring device, characterized by The method comprises the steps of: acquiring, by an acquisition module, an actual air volume of an outdoor unit every first preset time interval when an air conditioner is in a heating mode; the acquisition module is further configured to acquire an outdoor air temperature and an ambient temperature of the outdoor unit within the first preset time interval corresponding to the actual air volume attenuation after determining that the actual air volume attenuates; determining, by a determination module, whether the actual air volume of the outdoor unit attenuates when the air conditioner is in the heating mode; the determination module is further configured to determine whether the outdoor unit has dirty blockage according to the outdoor air temperature and the ambient temperature of the outdoor unit within the first preset time interval corresponding to the actual air volume attenuation after determining that the actual air volume attenuates; the determination of whether the outdoor unit has dirty blockage according to the outdoor air temperature and the ambient temperature of the outdoor unit within the first preset time interval corresponding to the actual air volume attenuation comprises: acquiring a change rate of a difference between the outdoor air temperature and the ambient temperature within the first preset time interval corresponding to the actual air volume attenuation; determining whether the outdoor unit has dirty blockage according to a first threshold and the change rate; if the change rate is less than or equal to the first threshold, it is determined that the outdoor unit has dirty blockage; if the change rate is greater than the first threshold, it is determined that the outdoor unit has frost.

8. An air conditioner characterized by comprising: The storage medium stores a computer program, and the computer program is loaded and executed by the processor to perform the steps in the monitoring method of any one of claims 1-6.

9. A storage medium, characterized by The storage medium stores a computer program, and the computer program is loaded and executed by the processor to perform the steps in the monitoring method of any one of claims 1-6.

Citation Information

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