Processing method, device and equipment for refrigerant leakage of air conditioner, air conditioner and medium

Abstract

The embodiment of the invention provides an air conditioner refrigerant leakage processing method, device and equipment, an air conditioner and a medium, and is applied to the air conditioner, and an optical fiber sensor is arranged on the outer wall of a refrigeration pipeline of the air conditioner; the method comprises the following steps: acquiring sensor data acquired by an optical fiber sensor; under the condition that the sensor data indicates that refrigerant leakage exists in the refrigeration pipeline, the leakage point position of the refrigeration pipeline is determined according to the sensor data; and the leakage point position of the refrigeration pipeline is repaired. According to the embodiment of the invention, the leakage point of the refrigeration pipeline of the air conditioner is positioned and repaired through the data of the optical fiber sensor, the tedious troubleshooting process in the traditional detection method is avoided, and the rapid and accurate detection and repair of the leakage of the refrigerant of the air conditioner as well as the maintenance efficiency and safety of an air conditioning system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to a method and device, equipment and medium for treating refrigerant leakage of an air conditioner. Background Art

[0002] At present, as a key component for realizing the refrigeration cycle, the sealing performance of the refrigeration pipeline is crucial for the normal operation of the air conditioner system. However, as the usage time of the air conditioner increases, problems such as aging and corrosion of the refrigeration pipeline will occur, and the risk of refrigerant leakage will also increase accordingly.

[0003] As the core medium for realizing heat exchange in the air conditioner system, once the refrigerant leaks, the total amount of refrigerant in the system decreases, which will directly affect the refrigeration effect. Furthermore, the air conditioner system needs to consume more energy to maintain the set indoor temperature, increasing energy consumption. Secondly, many refrigerants, such as Freon, will have a negative impact on the environment, such as destroying the ozone layer and exacerbating the greenhouse effect.

[0004] In the related art, generally, the refrigeration pipeline of the air conditioner is inspected manually at regular intervals. However, these methods have problems such as low detection accuracy, poor repair timeliness, and high maintenance costs. Summary of the Invention

[0005] In view of the above problems, a method and device, equipment and medium for treating refrigerant leakage of an air conditioner are provided to overcome the above problems or at least partially solve the above problems, including:

[0006] A method for treating refrigerant leakage of an air conditioner, wherein an optical fiber sensor is disposed on the outer wall of the refrigeration pipeline of the air conditioner, and the method includes:

[0007] Obtain the sensor data collected by the optical fiber sensor;

[0008] When the sensor data indicates that there is refrigerant leakage in the refrigeration pipeline, determine the leakage point position of the refrigeration pipeline according to the sensor data;

[0009] Repair the leakage point position of the refrigeration pipeline.

[0010] Optionally, before determining the leakage point position of the refrigeration pipeline according to the sensor data when the sensor data indicates that there is refrigerant leakage in the refrigeration pipeline, it further includes:

[0011] Determine the current optical property information of the light reflection signal according to the sensor data;

[0012] Judge whether the current optical property information is abnormal;

[0013] When the current optical property information is abnormal, it is determined that there is a refrigerant leak in the refrigeration pipeline;

[0014] When the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline, determining the leak point location of the refrigeration pipeline according to the sensor data includes:

[0015] When the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline, determining the leak point location of the refrigeration pipeline according to the abnormal current optical property information.

[0016] Optionally, determining whether the current optical property information is abnormal includes:

[0017] Obtaining reference optical property information;

[0018] Comparing the current optical property information with the reference optical property information;

[0019] Judging whether the current optical property information is abnormal according to the comparison result.

[0020] Optionally, the air conditioner is provided with a medium container, and a repair medium for repairing the refrigeration pipeline is arranged in the medium container. Repairing the leak point location of the refrigeration pipeline includes:

[0021] Controlling the medium container to release the repair medium to repair the leak point location of the refrigeration pipeline.

[0022] Optionally, the air conditioner is provided with a piezoelectric actuator at a position corresponding to the medium container. Controlling the medium container to release the repair medium to repair the leak point location of the refrigeration pipeline includes:

[0023] Controlling the medium container to release the repair medium to repair the leak point location of the refrigeration pipeline through the piezoelectric actuator.

[0024] Optionally, the air conditioner is further provided with a pressure pump. Controlling the medium container to release the repair medium to repair the leak point location of the refrigeration pipeline through the piezoelectric actuator includes:

[0025] When the leak point location is at the first position, controlling the medium container to release the repair medium to repair the leak point location of the refrigeration pipeline through the actuation operation of the piezoelectric actuator;

[0026] When the leak point location is at the second position, controlling the medium container to release the repair medium to repair the leak point location of the refrigeration pipeline through the actuation operation of the piezoelectric actuator and the pressure application operation of the pressure pump.

[0027] Optionally, the first position is a refrigeration pipeline interface area, and the second position is a pipeline area of the refrigeration pipeline.

[0028] Optionally, it further includes: uploading the sensor data to a local server or a cloud server; wherein, the local server or the cloud server is used to generate a prediction event for refrigerant leakage in the refrigeration pipeline in combination with historical sensor data, and push a preventive maintenance task to the user according to the prediction event.

[0029] Optionally, the repair medium includes: a sealant, or, a sealant and a refrigerant.

[0030] A device for handling refrigerant leakage of an air conditioner, an optical fiber sensor is disposed on the outer wall of the refrigeration pipeline of the air conditioner, and the device includes:

[0031] A sensor data acquisition module, configured to acquire sensor data collected by the optical fiber sensor;

[0032] A leakage point position determination module, configured to determine the leakage point position of the refrigeration pipeline according to the sensor data when the sensor data indicates that there is refrigerant leakage in the refrigeration pipeline;

[0033] A repair module, configured to repair the leakage point position of the refrigeration pipeline.

[0034] An electronic device, including a processor, a memory, and a computer program stored on the memory and capable of running on the processor, where when the computer program is executed by the processor, the method described above is implemented.

[0035] An air conditioner, including the device described above, or, including the electronic device described above.

[0036] A computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method described above is implemented.

[0037] The embodiments of the present invention have the following advantages:

[0038] In the embodiments of the present invention, by acquiring the sensor data collected by the optical fiber sensor; when the sensor data indicates that there is refrigerant leakage in the refrigeration pipeline, determining the leakage point position of the refrigeration pipeline according to the sensor data; and repairing the leakage point position of the refrigeration pipeline, it realizes positioning and repairing the leakage point of the air conditioner refrigeration pipeline through the optical fiber sensor data, avoids the cumbersome troubleshooting process in the traditional detection method, and improves the rapid and accurate detection and repair of the refrigerant leakage of the air conditioner and the maintenance efficiency and safety of the air conditioner system. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for the description of the present invention will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0040] Figure 1 is a flowchart of the steps of a method for treating refrigerant leakage of an air conditioner provided by an embodiment of the present invention;

[0041] Figure 2 is a schematic diagram of a leakage point repair path provided by an embodiment of the present invention;

[0042] Figure 3 is a flowchart of the steps of another method for treating refrigerant leakage of an air conditioner provided by an embodiment of the present invention;

[0043] Figure 4 is a schematic diagram of the steps of controlling a medium container provided by an embodiment of the present invention;

[0044] Figure 5 is a flowchart of the steps of still another method for treating refrigerant leakage of an air conditioner provided by an embodiment of the present invention;

[0045] Figure 6 is a structural block diagram of a device for treating refrigerant leakage of an air conditioner provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0047] Referring to Figure 1 , a flowchart of the steps of a method for treating refrigerant leakage of an air conditioner provided by an embodiment of the present invention is shown. The method is applied to an air conditioner, and an optical fiber sensor is provided on the outer wall of the refrigerant pipeline of the air conditioner.

[0048] In some examples, the optical fiber sensor can be designed for the refrigerant pipeline. By using the sensitivity of the optical fiber to the refrigerant, whether there is leakage is detected by detecting the refrigerant pipeline.

[0049] In practical applications, an optical fiber sensor can be wound around the outer wall of the refrigeration pipe of an air conditioner, and the outer layer of the optical fiber has a fluorine-sensitive coating. As some examples, the fluorine-sensitive coating can be zinc fluoride, which can coordinate with fluorine atoms in the refrigerant. Zinc fluoride forms a weak coordination bond with fluoride ions, resulting in changes in the electron cloud distribution on the surface of zinc fluoride, thereby changing the dielectric constant and refractive index of the coating. The fluorine-sensitive coating can also be magnesium fluoride, aluminum fluoride, etc.

[0050] It should be noted that the fluorine-sensitive coating can be selected according to the actual application scenario and is not limited to zinc fluoride, magnesium fluoride, aluminum fluoride, etc. in the above examples, and no excessive restrictions are made on this in the embodiments of the present invention.

[0051] Specifically, the following steps may be included:

[0052] Step 101, acquiring sensor data collected by the optical fiber sensor.

[0053] In practical applications, the optical fiber sensor can collect sensor data for the refrigeration pipeline in real time or periodically, and transmit the sensor data to the processing unit for analysis. For example, the sensor data for the refrigeration pipeline is collected every 10 seconds.

[0054] As some examples, the processing unit can be a microprocessor built into the air conditioner, or a local server or a cloud server. When the sensor data is abnormal, it indicates that there may be a refrigerant leak in the refrigeration pipeline.

[0055] Step 102: When the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline, determine the leakage point location of the refrigeration pipeline according to the sensor data.

[0056] In some examples, when the fluorine-sensitive coating on the surface of the optical fiber sensor comes into contact with the refrigerant, its optical or chemical properties change, such as a change in the refractive index, which causes a corresponding change in the sensor data. Therefore, the collected sensor data can be compared with the reference sensor data to determine whether there is a refrigerant leak in the refrigeration pipeline. If there is a refrigerant leak, the optical frequency domain reflectometer technology can be used to determine the location of the leak point in the refrigeration pipeline from the sensor data.

[0057] In some embodiments of the present invention, when the sensor data indicates that there is a refrigerant leakage in the refrigeration pipeline, before determining the leakage point of the refrigeration pipeline according to the sensor data, it also includes: determining current optical property information of the light reflection signal according to the sensor data; judging whether there is an abnormality in the current optical property information; and determining that there is a refrigerant leakage in the refrigeration pipeline when there is an abnormality in the current optical property information.

[0058] As some examples, the optical property information can be the intensity, frequency, phase, polarization state, or spectral characteristics of the light reflection signal, etc. These optical property information can reflect the changes after the fluorine-sensitive coating on the surface of the fiber optic sensor comes into contact with the refrigerant.

[0059] In some examples, the current optical property information of the light reflection signal can be determined from the sensor data, and the reference optical property information of the reference sensor data can be obtained. By comparing the two, it can be judged whether the current optical property information is abnormal. If the current optical property information is abnormal, it indicates that there is a refrigerant leak in the refrigeration pipeline.

[0060] For example, when the fluorine-sensitive coating comes into contact with the refrigerant, the change in its refractive index will cause a change in the intensity (i.e., the optical property information) of the light reflection signal in the sensor data. By analyzing the changes in this optical property information, it can be further confirmed whether there is a refrigerant leak in the refrigeration pipeline and provide a basis for determining the location of the leak point subsequently.

[0061] In some embodiments of the present invention, the judging whether the current optical property information is abnormal includes: obtaining the reference optical property information; comparing the current optical property information with the reference optical property information; and judging whether the current optical property information is abnormal according to the comparison result.

[0062] In some examples, after the fiber optic sensor is first deployed, the refrigeration pipeline can be detected once, and the sensor data generated when there is no refrigerant leak is recorded and used as the reference sensor data for subsequent analysis of the sensor data.

[0063] In some examples, the reference sensor data can be obtained, the reference optical property information can be determined, and by comparing the reference optical property information with the current optical property information, the comparison result can be determined. If the comparison result shows that there is a significant difference between the current optical property information and the reference optical property information, such as exceeding the preset threshold range, it can be judged that the current optical property information is abnormal.

[0064] For example, the preset threshold range can be set to ±5% of the reference optical property information. If the difference between the current optical property information and the reference optical property information exceeds this range, it is considered abnormal.

[0065] In some embodiments of the present invention, in the case where the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline, determining the leak point location of the refrigeration pipeline according to the sensor data includes: in the case where the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline, determining the leak point location of the refrigeration pipeline according to the current optical property information that is abnormal.

[0066] As some examples, the Optical Frequency Domain Reflectometry (OFDR) technology can be used to determine the location of leakage points in refrigeration pipes.

[0067] Among them, the basic principle of the optical frequency domain reflectometer is as follows:

[0068] Laser source: The OFDR system uses a laser source to emit an optical signal with continuously varying frequency.

[0069] Optical frequency modulation: The frequency of the optical signal increases linearly with time, forming a frequency ramp.

[0070] Optical fiber propagation: The optical signal propagates along the optical fiber and reflects part of the optical signal when encountering a change in the refractive index in the optical fiber.

[0071] Reflected light reception: The reflected optical signal is captured by the receiver and interfered with the reference optical signal.

[0072] In some examples, when the refrigerant (such as Freon) leaks, the refractive index near the leakage point changes, resulting in a change in the frequency of the reflected light. By emitting a frequency-modulated optical signal: The laser source emits an optical signal with a frequency that increases linearly with time, with a frequency range from f1 to f2; the optical signal propagates along the optical fiber and reflects part of the optical signal when encountering the leakage point; the reflected optical signal is captured by the receiver and interfered with the reference optical signal; the interference signal contains the optical characteristic information of the leakage point. By performing frequency-domain analysis on the interference signal, the frequency change of the reflected optical signal is determined; according to the relationship between the frequency change and the optical propagation time, the location of the leakage point is calculated.

[0073] For example, the propagation speed of light in the optical fiber is c (about 200,000 km / s); the refractive index of the optical fiber is n, and the actual propagation speed of light in the optical fiber is c / n.

[0074] The distance L between the leakage point and the starting point of the optical fiber can be calculated by the following formula:

[0075]

[0076] Among them, Δt is the delay time of the reflected optical signal, and the starting point of the optical fiber is defined as the starting point when the optical fiber is laid along the refrigeration pipe, and the pipe inlet is defined as the starting point.

[0077] Assume that the refractive index of the optical fiber is 1.5, and the propagation speed of light in the optical fiber is c / n = 200,000 / 1.5 ≈ 133,333 km / s.

[0078] When the delay time of the reflected optical signal detected at the leakage point is Δt = 10 microseconds, the location of the leakage point is calculated as follows:

[0079] L = 200000 / (2 * 1.5) * 10 * 10^6 ≈ 0.667 m, that is, the leakage point is located about 0.667 m from the starting point of the optical fiber.

[0080] Step 103, repair the position of the leakage point of the refrigeration pipeline.

[0081] In some embodiments of the present invention, the air conditioner is provided with a medium container, and a repair medium for repairing the refrigeration pipeline is arranged in the medium container. The repairing of the position of the leakage point of the refrigeration pipeline includes: controlling the medium container to release the repair medium to repair the position of the leakage point of the refrigeration pipeline.

[0082] In some embodiments of the present invention, the repair medium includes: a sealant, or a sealant and a refrigerant.

[0083] As some examples, the medium container can be a microcapsule, and the outer shell of the medium container can be made of a special material (such as temperature-sensitive polyurethane), which is very stable at normal temperature but will dissolve quickly when refrigerant leaks; the repair medium inside the medium container can include a fast-curing sealant (such as silicone sealant) and an environmentally friendly refrigerant (such as R513A refrigerant, as a supplement to the refrigerant).

[0084] Among them, the special modification of the temperature-sensitive polyurethane outer shell enables it to dissolve when encountering Freon, and this modification is mainly achieved by introducing fluorinated monomers or polar monomers (such as perfluorohexylethyl acrylate, vinyl perfluoroacetate, fluorinated acrylate, etc.). The introduction of fluorinated monomers makes the fluorine element introduced into the polyurethane outer shell. The high electronegativity and strong hydrophobicity of the fluorine element make the modified polyurethane outer shell easier to interact with Freon, so it will dissolve when encountering Freon.

[0085] In some examples, when refrigerant leaks from the refrigeration pipeline, the medium container can react with the refrigerant, dissolve the outer shell of the medium container, and release the internal repair medium to repair the position of the leakage point.

[0086] In some embodiments of the present invention, the air conditioner is provided with a piezoelectric actuator at a position corresponding to the medium container. The controlling the medium container to release the repair medium to repair the position of the leakage point of the refrigeration pipeline includes: controlling the medium container to release the repair medium to repair the position of the leakage point of the refrigeration pipeline through the piezoelectric actuator.

[0087] In some examples, pressure can be applied by a pressure actuator to cause the medium container to rupture, so as to control the medium container to release the repair medium to repair the position of the leakage point of the refrigeration pipeline.

[0088] Such as Figure 2As shown, a medium container (capsule) and two piezoelectric actuators can be set at point A (i.e., the refrigeration pipeline interface area). The piezoelectric actuators can generate mechanical deformation through the excitation of electrical signals, and then apply dynamic pressure to the medium container.

[0089] In practical applications, when a refrigerant leak occurs in the refrigeration pipeline, the piezoelectric actuator can be controlled to respond quickly and generate deformation. This deformation is converted into mechanical pressure on the medium container, causing the outer shell of the medium container to rupture under pressure, thereby releasing the internal repair medium.

[0090] In some embodiments of the present invention, the air conditioner is further provided with a pressure pump. Through the piezoelectric actuator, the release of the repair medium from the medium container is controlled to repair the leak point position of the refrigeration pipeline, including: when the leak point position is in the first position, through the actuation operation of the piezoelectric actuator, controlling the release of the repair medium from the medium container to repair the leak point position of the refrigeration pipeline; when the leak point position is in the second position, through the actuation operation of the piezoelectric actuator and the pressure application operation of the pressure pump, controlling the release of the repair medium from the medium container to repair the leak point position of the refrigeration pipeline.

[0091] In some embodiments of the present invention, the first position is the refrigeration pipeline interface area, and the second position is the pipeline area of the refrigeration pipeline.

[0092] In some examples, the refrigeration pipeline interface area can be the part where the pipeline joints of the refrigeration pipeline are connected to other components. These interface areas may cause refrigerant leaks due to improper connection, aging, wear, or external factors (such as vibration, corrosion, etc.).

[0093] The pipeline area of the refrigeration pipeline can be other parts of the refrigeration pipeline except the interface area. These pipeline areas may cause refrigerant leaks due to material defects, manufacturing defects, fatigue damage under long-term use, or external physical impacts, etc.

[0094] In practical applications, when the leak point position is in the refrigeration pipeline interface area, the piezoelectric actuator can be actuated to squeeze the medium container to release the repair medium, thereby repairing the leak point position in the refrigeration pipeline interface area.

[0095] In some examples, the pressure pump can be a micro pressure pump. Based on the piezoelectric actuator, the pressure pump can provide additional pressure to ensure that the repair medium reaches the leak point smoothly.

[0096] Such as Figure 2As shown, there is a "flow channel" for the repair medium to flow between the fiber optic sensor and the outer wall of the refrigeration pipeline. When the leakage point is in the pipeline area of the refrigeration pipeline, the piezoelectric actuator can be used to squeeze the medium container to release the repair medium, and the pressure pump can provide additional pressure to push the repair medium through the flow channel to reach the leakage point for repair. The repair medium can be cured at the leakage point to form a strong sealing layer, thereby preventing further leakage of the refrigerant.

[0097] When it is determined that the leakage point is in the second position, the pressure of the pressure pump can also be controlled according to the position of the leakage point to ensure that the repair medium can flow accurately and stably along the flow channel until it reaches and covers the leakage point of the refrigeration pipeline.

[0098] In practical applications, the working pressure of the pressure pump can also be precisely regulated to avoid the repair medium from stagnating due to insufficient pressure or leaking to non-leakage point areas during the flow process, thereby improving the accuracy and reliability of the repair operation.

[0099] In some examples, after repairing the leakage point of the refrigeration pipeline, the fiber optic sensor can also be controlled to scan the refrigeration pipeline to obtain the sensor data after repair. If the optical property information corresponding to the sensor data after repair is still abnormal, a secondary repair procedure can be performed. For example, the piezoelectric actuator can be controlled again to apply a certain pressure wave to the leakage point to allow the repair medium released from the medium container to better inject into the gap of the leakage point.

[0100] In some embodiments of the present invention, it further includes: uploading the sensor data to a local server or a cloud server; wherein, the local server or the cloud server is used to combine historical sensor data to generate a prediction event for refrigerant leakage in the refrigeration pipeline, and push a preventive maintenance task to the user according to the prediction event.

[0101] In some examples, a Wi-Fi or Bluetooth module can be built into the fiber optic sensor, and then the collected sensor data can be uploaded to a local server or a cloud server for storage.

[0102] As some examples, the prediction event can be a leakage risk assessment event for the refrigeration pipeline. The local server or the cloud server can predict the possibility of future leakage risk of the refrigeration pipeline according to the received historical sensor data, and generate a prediction event to push a preventive maintenance task to the user.

[0103] For example, if it is determined according to historical sensor data that the refrigerant leakage frequency at a leakage point in a certain area is relatively high, or leakage events occur frequently within a period of time (such as a week), the local server or the cloud server can mark this area or time period as a high-risk area or a high-risk time period. When generating a prediction event, the server can comprehensively consider these factors and push targeted preventive maintenance tasks to the user, such as suggesting to increase the inspection frequency in this high-risk area or perform special maintenance before the high-risk time period, so as to effectively prevent the occurrence of refrigerant leakage events and ensure the stable operation of the air-conditioning system.

[0104] In an embodiment of the present invention, by acquiring sensor data collected by an optical fiber sensor; in the case where the sensor data indicates that there is refrigerant leakage in the refrigeration pipeline, determining the leakage point position of the refrigeration pipeline according to the sensor data; and repairing the leakage point position of the refrigeration pipeline, it realizes locating and repairing the leakage point of the air-conditioning refrigeration pipeline through the optical fiber sensor data, avoids the cumbersome troubleshooting process in traditional detection methods, and improves the rapid and accurate detection and repair of air-conditioning refrigerant leakage, as well as the maintenance efficiency and safety of the air-conditioning system.

[0105] The following combines the attached Figure 3 Exemplarily illustrate the present invention:

[0106] Step 301, initialization and data calibration.

[0107] In some examples, when the optical fiber sensor is first installed, the entire refrigeration pipeline can be detected once, and the sensor data under normal conditions can be recorded as the reference sensor data.

[0108] Step 302, real-time scanning detection.

[0109] In some examples, the optical fiber sensor can collect sensor data for the refrigeration pipeline in real time or periodically. For example, it will automatically scan the status of the refrigeration pipeline every 10 seconds and transmit this sensor data to the processing unit for analysis.

[0110] Step 303, determine whether leakage is detected. If yes, go to step 304; otherwise, continue with step 302.

[0111] In some examples, when the fluorine-sensitive coating on the surface of the optical fiber sensor comes into contact with the refrigerant, its optical properties or chemical properties will change, such as the change in refractive index. Therefore, the currently collected sensor data can be analyzed with the reference sensor data to determine whether there is refrigerant leakage in the refrigeration pipeline.

[0112] For example, the current optical property information of the light reflection signal can be determined from the acquired sensor data. By comparing it with the reference optical property information in the reference sensor data, based on the comparison result, it can be judged whether the current optical property information is abnormal. If it is judged that the current optical property information is abnormal, it indicates that there is a refrigerant leak in the refrigeration pipeline.

[0113] Step 304, control the microcapsules (medium containers) near the leak point to automatically release the repair medium (sealant, or sealant and refrigerant).

[0114] In some examples, the air conditioner is provided with a medium container, and a repair medium for repairing the refrigeration pipeline is provided inside the medium container; a piezoelectric actuator is provided at a position corresponding to the medium container on the air conditioner; and a pressure pump is provided.

[0115] Such as Figure 4 , when it is detected that a refrigerant leak occurs and the optical fiber signal is abnormal (i.e., there is abnormal optical property information), the actuation operation (pressurization) of the piezoelectric actuator can be controlled, and then the medium container (microcapsule) can be squeezed to release the repair medium (sealant, or sealant and refrigerant) to repair the leak point position.

[0116] If the leak point position is in the first position, the actuation operation of the piezoelectric actuator can be used to control the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline.

[0117] If the leak point position is in the second position, the actuation operation of the piezoelectric actuator and the pressure application operation of the pressure pump can be combined to control the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline.

[0118] In some examples, the first position is the refrigeration pipeline interface area. The refrigeration pipeline interface area can be the part where the pipeline joints of the refrigeration pipeline are connected to other components. These interface areas may cause refrigerant leaks due to improper connection, aging, wear, or external factors (such as vibration, corrosion, etc.).

[0119] In practical applications, when the leak point position is in the refrigeration pipeline interface area, the actuation operation of the piezoelectric actuator can be used to squeeze the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline interface area.

[0120] In some examples, the second position is the pipeline area of the refrigeration pipeline. The pipeline area of the refrigeration pipeline can be other parts of the refrigeration pipeline except the interface area. These pipeline areas may cause refrigerant leaks due to material defects, manufacturing defects, fatigue damage during long-term use, or external physical impacts, etc.

[0121] Such asFigure 2 As shown, there is a "flow channel" for the repair medium to flow between the fiber optic sensor and the outer wall of the refrigeration pipe. When the leakage point is located in the pipeline area of the refrigeration pipe, the piezoelectric actuator can be used to squeeze the medium container to release the repair medium, and an additional pressure can be provided by the pressure pump to push the repair medium through the flow channel to reach the leakage point for repair. The repair medium can be cured at the leakage point to form a strong sealing layer, thereby preventing further leakage of the refrigerant.

[0122] Step 305: Scan the leakage point a second time to determine whether there is a leakage. If yes, perform step 204; otherwise, upload the sensor data to the local server or the cloud server so that the local server or the cloud server can combine the historical sensor data to generate a prediction event for refrigerant leakage in the refrigeration pipe and push a preventive maintenance task to the user according to the prediction event.

[0123] In some examples, after repairing the leakage point of the refrigeration pipe, the fiber optic sensor can also be controlled to scan the refrigeration pipe to obtain the sensor data after repair. If the optical property information corresponding to the sensor data after repair is still abnormal, a secondary repair procedure can be performed. For example, control the piezoelectric actuator again to apply a certain pressure wave to the leakage point to allow the repair medium released from the medium container to be better injected into the gap of the leakage point.

[0124] In some examples, a Wi-Fi or Bluetooth module can be built into the fiber optic sensor, and then the collected sensor data can be uploaded to the local server or the cloud server for storage.

[0125] As some examples, the prediction event can be a leakage risk assessment event for the refrigeration pipe. The local server or the cloud server can predict the possibility of future leakage risk of the refrigeration pipe according to the received historical sensor data and generate a prediction event to push a preventive maintenance task to the user.

[0126] For example, if it is determined according to the historical sensor data that the refrigerant leakage frequency at the leakage point in a certain area is relatively high, or leakage events occur frequently within a certain period of time (such as one week), the local server or the cloud server can mark this area or time period as a high-risk area or high-risk period. When generating the prediction event, the server can comprehensively consider these factors and push a targeted preventive maintenance task to the user, such as suggesting to increase the inspection frequency in this high-risk area or perform special maintenance before the high-risk period to effectively prevent the occurrence of refrigerant leakage events and ensure the stable operation of the air conditioning system.

[0127] Through some embodiments of the present invention, the following beneficial effects can be achieved:

[0128] 1. High sensitivity and precise positioning: By adopting the method of distributed optical fiber sensing, the sensitivity and accuracy of leakage detection are improved.

[0129] 2. Self-repair function: The intelligent sealant can automatically repair when a slight leakage is detected, significantly reducing the frequency of manual inspection and repair and improving the reliability of the system.

[0130] 3. Intelligent management: Through the Internet of Things and cloud platform, remote monitoring and management of the air-conditioning system can be realized, supporting real-time analysis and visual display of data, and helping users and maintenance personnel to take measures in a timely manner.

[0131] 4. Environmental protection and energy saving: By real-time monitoring and repair, refrigerant leakage is reduced, the negative impact on the environment is decreased. At the same time, the operation of the air-conditioning system is optimized to improve energy efficiency and save energy.

[0132] Refer to Figure 5 , which shows the step flowchart of another method for handling refrigerant leakage in an air conditioner provided by an embodiment of the present invention. Applied to an air conditioner, an optical fiber sensor is provided on the outer wall of the refrigeration pipeline of the air conditioner.

[0133] In some examples, the optical fiber sensor can be designed for the refrigeration pipeline. Utilizing the sensitivity of the optical fiber to the refrigerant, whether there is a leakage is detected by detecting the refrigeration pipeline.

[0134] In practical applications, the optical fiber sensor can be wound around the outer wall of the refrigeration pipeline of the air conditioner, and a fluoride-sensitive coating is provided on the outer layer of the optical fiber. As some examples, the fluoride-sensitive coating can be zinc fluoride, and zinc fluoride can form a coordination interaction with the fluorine atoms in the refrigerant. Zinc fluoride forms a weak coordination bond with fluoride ions, resulting in a change in the electron cloud distribution on the surface of zinc fluoride, and then changing the dielectric constant and refractive index of the coating. The fluoride-sensitive coating can also be magnesium fluoride, aluminum fluoride, etc.

[0135] It should be noted that the fluoride-sensitive coating can be selected according to the actual application scenario, not limited to zinc fluoride, magnesium fluoride, aluminum fluoride, etc. in the above examples, and no excessive limitation is made in this regard in the embodiments of the present invention.

[0136] Specifically, the following steps can be included:

[0137] Step 501, obtain the sensor data collected by the optical fiber sensor.

[0138] In practical applications, the optical fiber sensor can collect sensor data for the refrigeration pipeline in real time or periodically, and transmit these sensor data to the processing unit for analysis. For example, the sensor data for the refrigeration pipeline is collected every 10 seconds.

[0139] As some examples, the processing unit can be the microprocessor built into the air conditioner, or a local server or a cloud server. When the sensor data is abnormal, it indicates that there may be a refrigerant leak in the refrigeration pipeline.

[0140] Step 502: Determine the current optical property information of the light reflection signal according to the sensor data.

[0141] As some examples, the optical property information can be the intensity, frequency, phase, polarization state or spectral characteristics of the light reflection signal, etc. These optical property information can reflect the changes after the fluorine-sensitive coating on the surface of the fiber optic sensor contacts the refrigerant.

[0142] Step 503: Determine whether the current optical property information is abnormal.

[0143] After determining the current optical property information of the light reflection signal according to the sensor data, the reference optical property information of the reference sensor data can be obtained, and the two can be compared to determine whether the current optical property information is abnormal.

[0144] In some examples, after the fiber optic sensor is first deployed, the refrigeration pipeline can be detected once, and the sensor data generated when there is no refrigerant leak is recorded and used as the reference sensor data for subsequent analysis of the sensor data.

[0145] Step 504: When the current optical property information is abnormal, determine that there is a refrigerant leak in the refrigeration pipeline.

[0146] In some examples, if there is a significant difference between the current optical property information and the reference optical property information, such as exceeding the preset threshold range, it can be determined that the current optical property information is abnormal.

[0147] For example, the preset threshold range can be set to ±5% of the reference optical property information. If the difference between the current optical property information and the reference optical property information exceeds this range, it is considered abnormal.

[0148] In practical applications, when the fluorine-sensitive coating contacts the refrigerant, the change in its refractive index will cause a change in the intensity (i.e., the optical property information) of the light reflection signal in the sensor data. By analyzing the changes in these optical property information, it can be further confirmed whether there is a refrigerant leak in the refrigeration pipeline and provide a basis for determining the location of the leak point subsequently.

[0149] Step 505: When the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline, determine the leak point location of the refrigeration pipeline according to the current optical property information with anomalies.

[0150] As some examples, the Optical Frequency Domain Reflectometry (OFDR) technology can be used to determine the location of the leakage point of the refrigeration pipeline.

[0151] Among them, the basic principle of the optical frequency domain reflectometer is as follows:

[0152] Laser source: The OFDR system uses a laser source to emit an optical signal with a continuously changing frequency.

[0153] Optical frequency modulation: The frequency of the optical signal increases linearly with time, forming a frequency ramp.

[0154] Optical fiber propagation: The optical signal propagates along the optical fiber and reflects part of the optical signal when encountering a change in the refractive index in the optical fiber.

[0155] Received reflected light: The reflected optical signal is captured by the receiver and interfered with the reference optical signal.

[0156] In some examples, when the refrigerant (such as Freon) leaks, the refractive index near the leakage point changes, resulting in a change in the frequency of the reflected light. By emitting a frequency-modulated optical signal: The laser source emits an optical signal with a frequency that increases linearly with time, and the frequency range is from f1 to f2; the optical signal propagates along the optical fiber and reflects part of the optical signal when encountering the leakage point; the reflected optical signal is captured by the receiver and interfered with the reference optical signal; the interference signal contains the optical characteristic information of the leakage point. By performing frequency-domain analysis on the interference signal, the frequency change of the reflected optical signal is determined; according to the relationship between the frequency change and the optical propagation time, the location of the leakage point is calculated.

[0157] For example, the propagation speed of light in the optical fiber is c (about 200,000 km / s); the refractive index of the optical fiber is n, and the actual propagation speed of light in the optical fiber is c / n.

[0158] The distance L between the leakage point and the starting point of the optical fiber can be calculated by the following formula:

[0159]

[0160] Among them, Δt is the delay time of the reflected optical signal, and the starting point of the optical fiber is defined as the starting point when the optical fiber is laid along the refrigeration pipeline, and the pipeline inlet is defined as the starting point.

[0161] Assume that the refractive index of the optical fiber is 1.5, and the propagation speed of light in the optical fiber is c / n = 200,000 / 1.5 ≈ 133,333 km / s.

[0162] When the detected delay time of the reflected optical signal at the leakage point is Δt = 10 microseconds, the location of the leakage point is calculated as follows:

[0163] L = 200000 / (2 * 1.5) * 10 * 10^6 ≈ 0.667 m, that is, the leakage point is located about 0.667 m from the starting point of the optical fiber.

[0164] Step 506, repair the position of the leakage point of the refrigeration pipeline.

[0165] In some embodiments of the present invention, the air conditioner is provided with a medium container, and a repair medium for repairing the refrigeration pipeline is arranged in the medium container. The repairing of the position of the leakage point of the refrigeration pipeline includes: controlling the medium container to release the repair medium to repair the position of the leakage point of the refrigeration pipeline.

[0166] In some embodiments of the present invention, the repair medium includes: a sealant, or a sealant and a refrigerant.

[0167] As some examples, the medium container can be a microcapsule, and the outer shell of the medium container can be made of a special material (such as temperature-sensitive polyurethane), which is very stable at normal temperature but will dissolve quickly when refrigerant leakage occurs; the repair medium inside the medium container can include a fast-curing sealant (such as silicone sealant) and an environmentally friendly refrigerant (such as R513A refrigerant, as a supplement to the refrigerant).

[0168] Among them, the special modification of the temperature-sensitive polyurethane outer shell enables it to dissolve when encountering Freon, and this modification is mainly achieved by introducing fluorinated monomers or polar monomers (such as perfluorohexylethyl acrylate, vinyl perfluoroacetate, fluorinated acrylate, etc.). The introduction of fluorinated monomers introduces fluorine elements into the polyurethane outer shell. The high electronegativity and strong hydrophobicity of fluorine elements make the modified polyurethane outer shell easier to interact with Freon, so it will dissolve when encountering Freon.

[0169] In some examples, when refrigerant leakage occurs in the refrigeration pipeline, the medium container can react with the refrigerant, dissolve the outer shell of the medium container, and release the internal repair medium to repair the position of the leakage point.

[0170] In some embodiments of the present invention, the air conditioner is provided with a piezoelectric actuator at a position corresponding to the medium container. The controlling the medium container to release the repair medium to repair the position of the leakage point of the refrigeration pipeline includes: controlling the medium container to release the repair medium to repair the position of the leakage point of the refrigeration pipeline through the piezoelectric actuator.

[0171] In some examples, pressure can be applied by a pressure actuator to cause the medium container to rupture, so as to control the medium container to release the repair medium to repair the position of the leakage point of the refrigeration pipeline.

[0172] Such as Figure 2As shown, a medium container (capsule) and two piezoelectric actuators can be provided at point A (i.e., the refrigeration pipe interface area). The piezoelectric actuators can generate mechanical deformation through the excitation of electrical signals, and then apply dynamic pressure to the medium container.

[0173] In practical applications, when refrigerant leakage occurs in the refrigeration pipe, the piezoelectric actuator can be controlled to respond quickly and generate deformation. This deformation is converted into mechanical pressure on the medium container, causing the outer shell of the medium container to rupture under the pressure, thereby releasing the internal repair medium.

[0174] In some embodiments of the present invention, the air conditioner is further provided with a pressure pump. Through the piezoelectric actuator, the release of the repair medium from the medium container is controlled to repair the leakage point of the refrigeration pipe, including: when the leakage point is in the first position, through the actuation operation of the piezoelectric actuator, controlling the medium container to release the repair medium to repair the leakage point of the refrigeration pipe; when the leakage point is in the second position, through the actuation operation of the piezoelectric actuator and the pressure application operation of the pressure pump, controlling the medium container to release the repair medium to repair the leakage point of the refrigeration pipe.

[0175] In some embodiments of the present invention, the first position is the refrigeration pipe interface area, and the second position is the pipeline area of the refrigeration pipe.

[0176] In some examples, the refrigeration pipe interface area can be the part where the pipe joints of the refrigeration pipe are connected to other components. These interface areas may cause refrigerant leakage due to improper connection, aging, wear or external factors (such as vibration, corrosion, etc.).

[0177] The pipeline area of the refrigeration pipe can be other parts of the refrigeration pipe except the interface area. These pipeline areas may cause refrigerant leakage due to material defects, manufacturing defects, fatigue damage under long-term use or external physical impacts, etc.

[0178] In practical applications, when the leakage point is in the refrigeration pipe interface area, through the actuation operation of the piezoelectric actuator, the medium container can be squeezed to release the repair medium to repair the leakage point of the refrigeration pipe interface area.

[0179] In some examples, the pressure pump can be a micro pressure pump. Based on the piezoelectric actuator, the pressure pump can provide additional pressure to ensure that the repair medium reaches the leakage point smoothly.

[0180] Such as Figure 2As shown, there is a "flow channel" for the repair medium to flow between the fiber optic sensor and the outer wall of the refrigeration pipeline. When the leakage point is located in the pipeline area of the refrigeration pipeline, the piezoelectric actuator can be used to squeeze the medium container to release the repair medium, and an additional pressure can be provided by the pressure pump to push the repair medium through the flow channel to reach the leakage point for repair. The repair medium can be cured at the leakage point to form a strong sealing layer, thereby preventing further leakage of the refrigerant.

[0181] When it is determined that the leakage point is located at the second position, the pressure of the pressure pump can also be controlled according to the leakage point position to ensure that the repair medium can flow accurately and stably along the flow channel until it reaches and covers the leakage point position of the refrigeration pipeline.

[0182] In practical applications, the working pressure of the pressure pump can also be precisely regulated to prevent the repair medium from stagnating due to insufficient pressure or leaking to non-leakage point areas during the flow process, thereby improving the accuracy and reliability of the repair operation.

[0183] In some examples, after repairing the leakage point position of the refrigeration pipeline, the fiber optic sensor can also be controlled to scan the refrigeration pipeline to obtain the sensor data after repair. If the optical property information corresponding to the sensor data after repair is still abnormal, a secondary repair procedure can be carried out. For example, the piezoelectric actuator can be controlled again to apply a certain pressure wave to the leakage point position to allow the repair medium released from the medium container to better inject into the gap of the leakage point.

[0184] In some embodiments of the present invention, it further includes: uploading the sensor data to a local server or a cloud server; wherein, the local server or the cloud server is used to combine historical sensor data to generate a prediction event for refrigerant leakage in the refrigeration pipeline, and push a preventive maintenance task to the user according to the prediction event.

[0185] In some examples, a Wi-Fi or Bluetooth module can be built into the fiber optic sensor, and then the collected sensor data can be uploaded to a local server or a cloud server for storage.

[0186] As some examples, the prediction event can be a leakage risk assessment event for the refrigeration pipeline. The local server or the cloud server can predict the possibility of future leakage risk of the refrigeration pipeline based on the received historical sensor data, and generate a prediction event to push a preventive maintenance task to the user.

[0187] For example, if it is determined based on historical sensor data that the refrigerant leakage frequency at a leakage point in a certain area is high, or if leakage incidents occur frequently within a certain period of time (such as a week), the local server or the cloud server can mark this area or time period as a high-risk area or high-risk period. When generating a prediction event, the server can comprehensively consider these factors and push targeted preventive maintenance tasks to the user, such as suggesting to increase the inspection frequency in this high-risk area or to perform special maintenance before the high-risk period, so as to effectively prevent the occurrence of refrigerant leakage incidents and ensure the stable operation of the air-conditioning system.

[0188] In the embodiment of the present invention, by obtaining the sensor data collected by the fiber optic sensor; in the case where the sensor data indicates that there is refrigerant leakage in the refrigeration pipeline, determining the leakage point position of the refrigeration pipeline according to the sensor data; and repairing the leakage point position of the refrigeration pipeline, it realizes locating and repairing the leakage point of the air-conditioning refrigeration pipeline through the fiber optic sensor data, avoids the cumbersome troubleshooting process in the traditional detection method, and improves the rapid and accurate detection and repair of air-conditioning refrigerant leakage, as well as the maintenance efficiency and safety of the air-conditioning system.

[0189] It should be noted that for the method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the embodiments of the present invention are not limited by the described action sequence, because according to the embodiments of the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0190] Refer to Figure 6 , which shows a schematic structural diagram of a device for handling air-conditioning refrigerant leakage provided by an embodiment of the present invention, applied to an air-conditioning, and an optical fiber sensor is arranged on the outer wall of the refrigeration pipeline of the air-conditioning.

[0191] Specifically, it may include the following modules:

[0192] A sensor data acquisition module 601, configured to acquire the sensor data collected by the optical fiber sensor;

[0193] A leakage point position determination module 602, configured to determine the leakage point position of the refrigeration pipeline according to the sensor data in the case where the sensor data indicates that there is refrigerant leakage in the refrigeration pipeline;

[0194] A repair module 603, configured to repair the leakage point position of the refrigeration pipeline.

[0195] In some embodiments of the present invention, the device further includes:

[0196] An optical property information determination module, configured to determine current optical property information of an optical reflection signal according to the sensor data;

[0197] An optical property information judgment module, configured to judge whether the current optical property information is abnormal; and further configured to determine that there is a refrigerant leak in the refrigeration pipeline when the current optical property information is abnormal;

[0198] In some embodiments of the present invention, the leak point position determination module 602 includes:

[0199] A leak point position determination sub-module, configured to determine the leak point position of the refrigeration pipeline according to the current optical property information with an abnormality when the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline.

[0200] In some embodiments of the present invention, the optical property information judgment module includes:

[0201] A reference optical property information acquisition sub-module, configured to acquire reference optical property information;

[0202] An optical property information comparison sub-module, configured to compare the current optical property information with the reference optical property information;

[0203] An abnormality determination sub-module, configured to judge whether the current optical property information is abnormal according to the comparison result.

[0204] In some embodiments of the present invention, the air conditioner is provided with a medium container, and a repair medium for repairing the refrigeration pipeline is arranged in the medium container. The repair module 603 includes:

[0205] A control repair medium release sub-module, configured to control the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline

[0206] In some embodiments of the present invention, the air conditioner is provided with a piezoelectric actuator at a position corresponding to the medium container. The control repair medium release sub-module includes:

[0207] A piezoelectric actuator control unit, configured to control the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline through the piezoelectric actuator.

[0208] In some embodiments of the present invention, the air conditioner is further provided with a pressure pump. The piezoelectric actuator control unit includes:

[0209] The first control subunit is configured to, when the leakage point position is in the first position, control the medium container to release the repair medium through the actuation operation of the piezoelectric actuator, so as to repair the leakage point position of the refrigeration pipeline.

[0210] The second control subunit is configured to, when the leakage point position is in the second position, control the medium container to release the repair medium through the actuation operation of the piezoelectric actuator and the pressure application operation of the pressure pump, so as to repair the leakage point position of the refrigeration pipeline.

[0211] In some embodiments of the present invention, the first position is the refrigeration pipeline interface area, and the second position is the pipeline area of the refrigeration pipeline.

[0212] In some embodiments of the present invention, the device further includes:

[0213] The sensor data uploading module is configured to upload the sensor data to a local server or a cloud server; wherein, the local server or the cloud server is configured to generate a prediction event for refrigerant leakage in the refrigeration pipeline in combination with historical sensor data, and push a preventive maintenance task to the user according to the prediction event.

[0214] In some embodiments of the present invention, the repair medium includes: a sealant, or, a sealant and a refrigerant.

[0215] In an embodiment of the present invention, by acquiring the sensor data collected by the fiber optic sensor; in the case that the sensor data indicates refrigerant leakage in the refrigeration pipeline, determining the leakage point position of the refrigeration pipeline according to the sensor data; and repairing the leakage point position of the refrigeration pipeline, it realizes locating and repairing the leakage point of the air-conditioning refrigeration pipeline through the fiber optic sensor data, avoids the cumbersome troubleshooting process in the traditional detection method, and improves the rapid and accurate detection and repair of air-conditioning refrigerant leakage, as well as the maintenance efficiency and safety of the air-conditioning system.

[0216] An embodiment of the present invention further provides an electronic device, which may include a processor, a memory, and a computer program stored on the memory and capable of running on the processor. When the computer program is executed by the processor, the above-mentioned method is implemented.

[0217] An embodiment of the present invention further provides an air conditioner, which may include the above-mentioned device, or, include the above-mentioned electronic device.

[0218] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by the processor, the above-mentioned method is implemented.

[0219] For the device embodiments, since they are basically similar to the method embodiments, they are described relatively simply. For the relevant parts, please refer to the corresponding descriptions in the method embodiments.

[0220] Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0221] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention can take the form of all-hardware embodiments, all-software embodiments, or embodiments combining software and hardware aspects. Moreover, the embodiments of the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0222] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of processes and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing terminal devices to generate a machine, so that the instructions executed by the processors of the computer or other programmable data processing terminal devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0223] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0224] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device, so that a series of operation steps are executed on the computer or other programmable terminal device to generate a computer-implemented process. Therefore, the instructions executed on the computer or other programmable terminal device provide steps for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0225] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0226] Finally, it should also be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or terminal device comprising the above elements.

[0227] The above has introduced in detail a method, device, equipment and medium for dealing with air conditioner refrigerant leakage. Specific examples are used in this text to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A method for treating refrigerant leakage of an air conditioner, characterized in that, An optical fiber sensor is provided on the outer wall of the refrigeration pipeline of the air conditioner, and the method includes: Obtain the sensor data collected by the optical fiber sensor; When the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline, determine the leak point position of the refrigeration pipeline according to the sensor data; Repair the leak point position of the refrigeration pipeline.

2. The method according to claim 1, wherein Before determining the leak point position of the refrigeration pipeline according to the sensor data when the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline, it further includes: Determine the current optical property information of the optical reflection signal according to the sensor data; Judge whether the current optical property information is abnormal; When the current optical property information is abnormal, determine that there is a refrigerant leak in the refrigeration pipeline; The step of determining the leak point position of the refrigeration pipeline according to the sensor data when the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline includes: When the sensor data indicates that there is a refrigerant leak in the refrigeration pipeline, determine the leak point position of the refrigeration pipeline according to the current optical property information with abnormality.

3. The method according to claim 2, wherein The step of judging whether the current optical property information is abnormal includes: Obtain the reference optical property information; Compare the current optical property information with the reference optical property information; Judge whether the current optical property information is abnormal according to the comparison result.

4. The method according to any one of claims 1 to 3, characterized in that, The air conditioner is provided with a medium container, and a repair medium for repairing the refrigeration pipeline is arranged in the medium container. The step of repairing the leak point position of the refrigeration pipeline includes: Control the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline.

5. The method according to claim 4, wherein The air conditioner is provided with a piezoelectric actuator at a position corresponding to the medium container. The step of controlling the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline includes: Control the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline through the piezoelectric actuator.

6. The method according to claim 5, characterized in that The air conditioner is further provided with a pressure pump. The step of controlling the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline through the piezoelectric actuator includes: When the leak point position is at the first position, control the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline through the actuation operation of the piezoelectric actuator; When the leak point position is at the second position, control the medium container to release the repair medium to repair the leak point position of the refrigeration pipeline through the actuation operation of the piezoelectric actuator and the pressure application operation of the pressure pump.

7. The method according to claim 6, characterized in that The first position is the refrigeration pipeline interface area, and the second position is the pipeline area of the refrigeration pipeline.

8. The method according to claim 1, wherein It further includes: Upload the sensor data to a local server or a cloud server; wherein, the local server or the cloud server is configured to generate a prediction event for refrigerant leakage in the refrigeration pipeline in combination with historical sensor data, and push a preventive maintenance task to a user according to the prediction event.

9. The method according to claim 4, wherein The repair medium includes: a sealant, or, a sealant and a refrigerant.

10. A processing device for air conditioner refrigerant leakage, characterized in that, An optical fiber sensor is disposed on an outer wall of a refrigeration pipeline of the air conditioner, and the device includes: a sensor data acquisition module configured to acquire sensor data collected by the optical fiber sensor; a leakage point location determination module configured to determine a leakage point location of the refrigeration pipeline according to the sensor data when the sensor data indicates that there is refrigerant leakage in the refrigeration pipeline; a repair module configured to repair the leakage point location of the refrigeration pipeline.

11. An electronic device, characterized in that, comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the method according to any one of claims 1 to 9.

12. An air conditioner, characterized in that, comprising the device according to claim 10, or, comprising the electronic device according to claim 11.

13. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, and the computer program, when executed by a processor, implements the method according to any one of claims 1 to 9.

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