Refrigerant leakage detection method, device, system and computer readable storage medium

Abstract

The application discloses a refrigerant leakage detection method, device, system and computer readable storage medium, the method comprises: obtaining a target environment temperature; according to the mapping relationship between the preset ambient temperature interval and the preset equipment working condition information, the target equipment working condition information corresponding to the target environment temperature is obtained, and the refrigerant leakage detection is carried out according to the target equipment working condition information, and the refrigerant leakage detection result is obtained; obtain the historical detection record, according to the refrigerant leakage detection result and the historical detection record, determine the target detection result. Through the mapping relationship between the ambient temperature interval and the equipment working condition information, the target equipment working condition information corresponding to the target environment temperature is obtained to carry out refrigerant leakage detection, the influence of different environment temperatures on refrigerant leakage detection is avoided, and the accuracy of refrigerant leakage detection is improved.

Description

Technical Field

[0001] This application relates to the field of refrigerant detection technology, specifically to a refrigerant leak detection method, apparatus, system, and computer-readable storage medium. Background Technology

[0002] Currently, due to the widespread use of R32 refrigerant, more and more manufacturers recommend R32 refrigerant air conditioners. However, due to the characteristics of R32 refrigerant, its usage is relatively small. When refrigerant is insufficient, it has a significant impact on the overall performance and reliability of the unit. If it runs for a long time, it can lead to the compressor burning out.

[0003] Current refrigerant leak detection typically uses leak detectors to detect whether refrigerant is leaking. However, different ambient temperatures can affect refrigerant leak detectors, including changes in sensitivity, gas diffusion rate, and stray signal interference, which reduces the accuracy of refrigerant leak detection.

[0004] Therefore, improving the accuracy of refrigerant leak detection is an urgent problem to be solved. Summary of the Invention

[0005] This application provides a refrigerant leak detection method, apparatus, system, and computer-readable storage medium, which can improve the accuracy of refrigerant leak detection.

[0006] In a first aspect, embodiments of this application provide a refrigerant leakage detection method, the method comprising:

[0007] Obtain the target ambient temperature;

[0008] Based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information, the target equipment operating condition information corresponding to the target ambient temperature is obtained, and refrigerant leakage detection is performed based on the target equipment operating condition information to obtain the refrigerant leakage detection result.

[0009] Obtain historical detection records, and determine the target detection result based on the refrigerant leak detection results and the historical detection records.

[0010] Secondly, embodiments of this application provide a refrigerant leakage detection device, the refrigerant leakage detection device comprising:

[0011] The acquisition unit is used to acquire the target ambient temperature;

[0012] The detection unit is used to obtain the target equipment operating condition information corresponding to the target ambient temperature according to the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information, and to perform refrigerant leakage detection based on the target equipment operating condition information to obtain the refrigerant leakage detection result.

[0013] The determining unit is used to acquire historical detection records and determine the target detection result based on the refrigerant leakage detection result and the historical detection records.

[0014] Thirdly, embodiments of this application also provide a refrigerant leak detection system, including a memory storing a computer program; a processor loads the computer program from the memory to execute the steps of any of the refrigerant leak detection methods provided in embodiments of this application.

[0015] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program adapted for loading by a processor to perform the steps of any of the refrigerant leak detection methods provided in embodiments of this application.

[0016] Fifthly, embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the steps in any of the refrigerant leak detection methods provided in embodiments of this application.

[0017] The scheme adopted in the application embodiment obtains the target ambient temperature; based on the mapping relationship between a preset ambient temperature range and preset equipment operating condition information, it obtains the target equipment operating condition information corresponding to the target ambient temperature, and performs refrigerant leak detection based on the target equipment operating condition information to obtain the refrigerant leak detection result; it obtains historical detection records, and determines the target detection result based on the refrigerant leak detection result and the historical detection records. By using the mapping relationship between the ambient temperature range and equipment operating condition information to obtain the target equipment operating condition information corresponding to the target ambient temperature for refrigerant leak detection, the influence of different ambient temperatures on refrigerant leak detection is avoided, thus improving the accuracy of refrigerant leak detection. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic flowchart of one embodiment of the refrigerant leak detection method provided in this application.

[0020] Figure 2 This is a schematic diagram of the refrigerant leakage detection device provided in the embodiments of this application;

[0021] Figure 3 This is a schematic diagram of the refrigerant leak detection system provided in the embodiments of this application. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. At the same time, in the description of the embodiments of this application, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] This application provides a refrigerant leak detection method, apparatus, system, and computer-readable storage medium.

[0024] Specifically, this embodiment will be described from the perspective of a refrigerant leak detection system, which can be integrated into a refrigerant leak detection device. That is, the refrigerant leak detection method of this embodiment can be executed by the refrigerant leak detection system.

[0025] The refrigerant leakage detection method provided in this application embodiment can be applied to equipment such as air conditioners and refrigerators that rely on refrigerant to operate.

[0026] The following detailed description, in conjunction with the accompanying drawings, illustrates the process. This embodiment uses a refrigerant leak detection system as an example. It should be noted that the order of description in the following embodiments is not intended to limit the preferred order of the embodiments. Although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown in the drawings.

[0027] Please refer to Figure 1 An embodiment of the refrigerant leak detection method is proposed, which includes the following steps:

[0028] Step 101: Obtain the target ambient temperature;

[0029] Step 102: Based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information, obtain the target equipment operating condition information corresponding to the target ambient temperature, and perform refrigerant leakage detection based on the target equipment operating condition information to obtain the refrigerant leakage detection result.

[0030] Step 103: Obtain historical detection records, and determine the target detection result based on the refrigerant leak detection results and the historical detection records.

[0031] In this embodiment, during the operation of equipment such as air conditioners and refrigerators, the refrigerant leak detection system acquires the current ambient temperature as the target ambient temperature. Based on the mapping relationship between preset ambient temperature ranges and preset equipment operating condition information, the system obtains the target equipment operating condition information corresponding to the target ambient temperature, and performs refrigerant leak detection based on this information to obtain the refrigerant leak detection result. The system also acquires historical detection records and determines the target detection result based on the refrigerant leak detection result and the historical detection records. It is understood that the preset ambient temperature range includes multiple ranges, typically three, and the preset equipment operating condition information usually includes information on various operating conditions, with each ambient temperature range having its corresponding equipment operating condition information.

[0032] This embodiment's refrigerant leak detection system acquires the target ambient temperature; based on a preset mapping relationship between ambient temperature ranges and preset equipment operating condition information, it acquires the target equipment operating condition information corresponding to the target ambient temperature, and performs refrigerant leak detection based on the target equipment operating condition information to obtain the refrigerant leak detection result; it acquires historical detection records, and determines the target detection result based on the refrigerant leak detection result and the historical detection records. By using the mapping relationship between ambient temperature ranges and equipment operating condition information to acquire the target equipment operating condition information corresponding to the target ambient temperature for refrigerant leak detection, the system avoids the influence of different ambient temperatures on refrigerant leak detection and improves the accuracy of refrigerant leak detection.

[0033] Specifically, the following provides a detailed explanation of each step:

[0034] Step 101: Obtain the target ambient temperature;

[0035] In this step, air conditioners, refrigerators and other equipment are equipped with ambient temperature sensors. When the refrigerant leak detection system receives a defrosting command, it acquires data from the ambient temperature sensors and can determine the target ambient temperature.

[0036] Step 102: Based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information, obtain the target equipment operating condition information corresponding to the target ambient temperature, and perform refrigerant leakage detection based on the target equipment operating condition information to obtain the refrigerant leakage detection result.

[0037] In this step, the refrigerant leak detection system first matches the target ambient temperature with the preset ambient temperature range based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information, thereby determining the ambient temperature range corresponding to the target ambient temperature. Then, based on the ambient temperature range corresponding to the target ambient temperature, it determines the target equipment operating condition information corresponding to the target ambient temperature. After determining the target equipment operating condition information corresponding to the target ambient temperature, the refrigerant leak detection system performs refrigerant leak detection based on the target equipment operating condition information to obtain the refrigerant leak detection result.

[0038] Specifically, step 102 includes:

[0039] Step 1021: If the target ambient temperature belongs to the first ambient temperature range, then according to the mapping relationship, obtain the target equipment operating condition information corresponding to the target ambient temperature to obtain the evaporator temperature information; perform refrigerant leakage detection based on the evaporator temperature information and the target ambient temperature to obtain the refrigerant leakage detection result;

[0040] In this step, the refrigerant leak detection system matches the target ambient temperature with the preset ambient temperature range based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information. If the ambient temperature range corresponding to the target ambient temperature is determined to be the first ambient temperature range in the preset ambient temperature range, the target equipment operating condition information corresponding to the target ambient temperature is obtained as the evaporator temperature information based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information. The refrigerant leak detection system performs refrigerant leak detection based on the evaporator temperature information and the target ambient temperature to obtain the refrigerant leak detection result.

[0041] Specifically, the steps of performing refrigerant leak detection based on the evaporator temperature information and the target ambient temperature to obtain the refrigerant leak detection result include:

[0042] Step 10211: Obtain the reference temperature of the evaporator inner tube and the reference ambient temperature at the time of startup;

[0043] In this step, when the air conditioner, refrigerator and other equipment are turned on, the evaporator inner tube temperature at the time of startup is determined as the evaporator inner tube reference temperature, and the ambient temperature at the time of startup is determined as the reference ambient temperature, and stored in the storage device; after the refrigerant leak detection system determines that the target ambient temperature belongs to the first ambient temperature range, it obtains the evaporator inner tube reference temperature and the reference ambient temperature at the time of startup from the storage device.

[0044] Step 10212: Calculate the first difference between the evaporator inner tube temperature and the target ambient temperature, the second difference between the evaporator inner tube reference temperature and the reference ambient temperature, and the third difference between the evaporator inner tube temperature and the evaporator inner tube reference temperature in the evaporator temperature information.

[0045] In this step, the refrigerant leak detection system calculates the first difference between the evaporator inner tube temperature and the target ambient temperature, the second difference between the evaporator inner tube reference temperature and the reference ambient temperature, and the third difference between the evaporator inner tube temperature and the evaporator inner tube reference temperature.

[0046] Step 10213: If the first difference, the second difference, and the third difference satisfy the first preset condition, then the refrigerant leakage detection result is a refrigerant leak.

[0047] In this step, after the refrigerant leak detection system determines the first difference, the second difference, and the third difference, it calculates the target difference between the first difference and the second difference, compares the target difference with the first difference threshold, and if the target difference is less than or equal to the first difference threshold, it compares the third difference with the second difference threshold. If the third difference is less than or equal to the second difference threshold, it is determined that the first difference, the second difference, and the third difference meet the first preset condition, and the refrigerant leak detection result is a refrigerant leak.

[0048] Step 10214: If the first difference, the second difference, or the third difference does not meet the first preset condition, then the refrigerant leakage detection result is that the refrigerant has not leaked.

[0049] In this step, after the refrigerant leak detection system determines the first difference, the second difference, and the third difference, it calculates the target difference between the first difference and the second difference. This target difference is then compared with a first difference threshold. If the target difference is greater than the first difference threshold, it is determined that the first difference, the second difference, and the third difference do not meet the first preset condition, and the refrigerant leak detection result is "no refrigerant leak." If the target difference is less than or equal to the first difference threshold, the third difference is compared with the second difference threshold. If the third difference is greater than the second difference threshold, it is determined that the first difference, the second difference, and the third difference do not meet the first preset condition, and the refrigerant leak detection result is "no refrigerant leak."

[0050] Step 1022: If the target ambient temperature belongs to the second ambient temperature range, then according to the preset mapping relationship between the ambient temperature range and the preset equipment operating condition information, the target equipment operating condition information corresponding to the target ambient temperature is obtained as equipment electrical information and compressor exhaust temperature; refrigerant leakage detection is performed based on the equipment electrical information and the compressor exhaust temperature to obtain the refrigerant leakage detection result;

[0051] In this step, the refrigerant leak detection system matches the target ambient temperature with the preset ambient temperature range based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information. If the ambient temperature range corresponding to the target ambient temperature is determined to be the second ambient temperature range in the preset ambient temperature range, the target equipment operating condition information corresponding to the target ambient temperature is obtained as the equipment electrical information and the compressor exhaust temperature based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information. The refrigerant leak detection system performs refrigerant leak detection based on the equipment electrical information and the compressor exhaust temperature to obtain the refrigerant leak detection result.

[0052] Specifically, refrigerant leakage detection is performed based on the electrical information of the equipment and the discharge temperature of the compressor to obtain refrigerant leakage detection results, including:

[0053] Step 10221: If the electrical information of the equipment meets the second preset condition, then determine the compressor winding temperature based on the compressor exhaust temperature and the target ambient temperature;

[0054] In this step, the refrigerant leak detection system compares the equipment's electrical information with the second preset condition to determine whether the electrical information meets the second preset condition. If the refrigerant leak detection system determines that the equipment's electrical information meets the second preset condition, it determines the compressor winding temperature based on the compressor discharge temperature and the target ambient temperature. Specifically, a temperature sensor is installed in the compressor's discharge port. The refrigerant leak detection system determines the compressor discharge temperature based on this temperature sensor, and then determines the compressor winding temperature based on the compressor discharge temperature and the target ambient temperature using a calculation formula. The formula for calculating the compressor winding temperature is: Tc = Ta + (Tr - Ta) / 0.95, where Tc represents the compressor winding temperature, Ta represents the target ambient temperature, Tr represents the compressor discharge temperature, and 0.95 is the fan efficiency coefficient.

[0055] Step 10222: If the compressor winding temperature is greater than or equal to a preset winding temperature threshold, then the refrigerant leakage detection result is determined to be refrigerant leakage.

[0056] In this step, after determining the compressor winding temperature, the refrigerant leak detection system compares the compressor winding temperature with a preset winding temperature threshold. If the compressor winding temperature is greater than or equal to the preset winding temperature threshold, the refrigerant leak detection result is determined to be a refrigerant leak.

[0057] Step 10223: If the compressor winding temperature is less than the preset winding temperature threshold, then the refrigerant leakage detection result is determined to be no refrigerant leakage.

[0058] In this step, if the refrigerant leak detection system determines that the compressor winding temperature is less than the preset winding temperature threshold, then the refrigerant leak detection result is determined to be a refrigerant leak.

[0059] Furthermore, the equipment electrical information includes voltage, current, and power values. The step of determining that the equipment electrical information meets preset conditions includes:

[0060] Step a: If the voltage value is greater than or equal to the preset voltage threshold and the power value is less than the preset power threshold, then it is determined that the electrical information of the device meets the second preset condition.

[0061] In this step, the refrigerant leak detection system first compares the voltage value with a preset voltage threshold. If the voltage value is greater than or equal to the preset voltage threshold, it then compares the power value with a preset power threshold. If the power value is less than the preset power threshold, it determines that the electrical information of the equipment meets the second preset condition.

[0062] Step b: If the voltage value is less than the preset voltage threshold and the current value is less than the preset current threshold, then it is determined that the electrical information of the device meets the second preset condition.

[0063] In this step, the refrigerant leak detection system first compares the voltage value with a preset voltage threshold. If the voltage value is less than the preset voltage threshold, it then compares the current value with a preset current threshold. If the current value is less than the preset current threshold, it determines that the electrical information of the equipment meets the second preset condition.

[0064] Step 1023: If the target ambient temperature belongs to the third ambient temperature range, then according to the mapping relationship, obtain the target equipment operating condition information corresponding to the target ambient temperature as evaporator temperature information; perform refrigerant leakage detection based on the evaporator temperature information to obtain the refrigerant leakage detection result.

[0065] In this step, the refrigerant leak detection system matches the target ambient temperature with the preset ambient temperature range based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information. If the ambient temperature range corresponding to the target ambient temperature is determined to be the third ambient temperature range in the preset ambient temperature range, then the target equipment operating condition information corresponding to the target ambient temperature is obtained as the evaporator temperature information based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information. The refrigerant leak detection system performs refrigerant leak detection based on the evaporator temperature information and obtains the refrigerant leak detection result.

[0066] Specifically, refrigerant leakage detection is performed based on the evaporator temperature information to obtain refrigerant leakage detection results, including:

[0067] Step 10231: Compare the evaporator outlet temperature in the evaporator temperature information with the preset outlet temperature threshold.

[0068] In this step, after obtaining the evaporator temperature information, the refrigerant leak detection system compares the evaporator outlet temperature in the evaporator temperature information with the preset outlet temperature threshold.

[0069] Step 10232: If the temperature at the evaporator outlet is greater than the preset outlet temperature threshold, then the refrigerant leak detection result is determined to be a refrigerant leak.

[0070] In this step, if the refrigerant leak detection system determines that the evaporator outlet temperature is greater than the preset outlet temperature threshold, then the refrigerant leak detection result is determined to be a refrigerant leak.

[0071] Step 10233: If the temperature at the evaporator outlet is not greater than the preset outlet temperature threshold, then the refrigerant leak detection result is determined to be no refrigerant leak.

[0072] In this step, if the refrigerant leak detection system determines that the evaporator outlet temperature is not greater than the preset outlet temperature threshold, then the refrigerant leak detection result is determined to be a refrigerant leak.

[0073] Step 103: Obtain historical detection records, and determine the target detection result based on the refrigerant leak detection results and the historical detection records.

[0074] In this step, after confirming that the refrigerant leak detection result is a refrigerant leak, the refrigerant leak detection system acquires historical detection records and determines the target detection result based on the refrigerant leak detection result and the historical detection records.

[0075] Specifically, step 103 includes:

[0076] Step 1031: If the refrigerant leak detection result is a refrigerant leak, then update the historical refrigerant leak duration and historical refrigerant leak count in the historical detection record to obtain the target refrigerant leak duration and target refrigerant leak count;

[0077] In this step, if the refrigerant leak detection system determines that the refrigerant leak is detected as a refrigerant leak, it updates the historical refrigerant leak duration and historical refrigerant leak count in the historical detection records to obtain the target refrigerant leak duration and target refrigerant leak count. It can be understood that the historical refrigerant leak duration is the total duration for which a refrigerant leak was detected as a leak in the past, and the historical refrigerant leak count is the total number of times a refrigerant leak was detected as a leak in the past. For example, if the refrigerant leak detection system determines that the refrigerant leak is detected as a leak, it obtains the first duration of the currently determined refrigerant leak, adds the first duration to the historical refrigerant leak duration to obtain the target refrigerant leak duration, and increments the historical refrigerant leak count by one to obtain the target refrigerant leak count.

[0078] Step 1032: If the target refrigerant leakage duration is less than the preset duration threshold, or the target refrigerant leakage count is less than the preset count threshold, then the target detection result is determined to be no refrigerant leakage.

[0079] Step 1033: If the target refrigerant leakage duration is greater than the preset duration threshold, and the target refrigerant leakage count is greater than the preset count threshold, then the target detection result is determined to be refrigerant leakage.

[0080] In steps 1032 to 1033, if the refrigerant leak detection system determines that the target refrigerant leak duration is less than a preset duration threshold, or the target refrigerant leak count is less than a preset count threshold, then the target detection result is determined to be no refrigerant leak; if the target refrigerant leak duration is determined to be greater than a preset duration threshold for comparison, and the target refrigerant leak count is greater than a preset count threshold, then the target detection result is determined to be a refrigerant leak.

[0081] This embodiment's refrigerant leak detection system acquires the target ambient temperature; based on a preset mapping relationship between ambient temperature ranges and preset equipment operating condition information, it acquires the target equipment operating condition information corresponding to the target ambient temperature, and performs refrigerant leak detection based on the target equipment operating condition information to obtain the refrigerant leak detection result; it acquires historical detection records, and determines the target detection result based on the refrigerant leak detection result and the historical detection records. By using the mapping relationship between ambient temperature ranges and equipment operating condition information to acquire the target equipment operating condition information corresponding to the target ambient temperature for refrigerant leak detection, the system avoids the influence of different ambient temperatures on refrigerant leak detection and improves the accuracy of refrigerant leak detection.

[0082] This embodiment also provides a refrigerant leak detection device, which can be integrated into equipment such as air conditioners and refrigerators. Figure 2 As shown, the refrigerant leak detection device may include:

[0083] Acquisition unit 1001 is used to acquire the target ambient temperature;

[0084] The detection unit 1002 is used to obtain the target equipment operating condition information corresponding to the target ambient temperature according to the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information, and to perform refrigerant leakage detection according to the target equipment operating condition information to obtain the refrigerant leakage detection result.

[0085] The determining unit 1003 is used to acquire historical detection records and determine the target detection result based on the refrigerant leakage detection result and the historical detection records.

[0086] In an optional example, the detection unit is also used for:

[0087] If the target ambient temperature falls within the first ambient temperature range, then according to the mapping relationship, the target equipment operating condition information corresponding to the target ambient temperature is obtained to acquire the evaporator temperature information; refrigerant leakage detection is performed based on the evaporator temperature information and the target ambient temperature to obtain the refrigerant leakage detection result; or...

[0088] If the target ambient temperature falls within the second ambient temperature range, then based on the preset mapping relationship between the ambient temperature range and the preset equipment operating condition information, the target equipment operating condition information corresponding to the target ambient temperature is obtained as equipment electrical information and compressor exhaust temperature; refrigerant leakage detection is performed based on the equipment electrical information and the compressor exhaust temperature to obtain the refrigerant leakage detection result; or...

[0089] If the target ambient temperature falls within the third ambient temperature range, then according to the mapping relationship, the target equipment operating condition information corresponding to the target ambient temperature is obtained as the evaporator temperature information; refrigerant leakage detection is performed based on the evaporator temperature information to obtain the refrigerant leakage detection result.

[0090] In an optional example, the detection unit is also used for:

[0091] Obtain the reference temperature of the evaporator inner tube and the reference ambient temperature at the moment of startup;

[0092] Calculate the first difference between the evaporator inner tube temperature and the target ambient temperature, the second difference between the evaporator inner tube reference temperature and the reference ambient temperature, and the third difference between the evaporator inner tube temperature and the evaporator inner tube reference temperature in the evaporator temperature information.

[0093] If the first difference, the second difference, and the third difference satisfy the first preset condition, then the refrigerant leak detection result is a refrigerant leak.

[0094] If the first difference, the second difference, or the third difference does not meet the first preset condition, the refrigerant leakage detection result is that there is no refrigerant leakage.

[0095] In an optional example, the detection unit is also used for:

[0096] If the electrical information of the equipment meets the second preset condition, the compressor winding temperature is determined based on the compressor exhaust temperature and the target ambient temperature.

[0097] If the compressor winding temperature is greater than or equal to a preset winding temperature threshold, the refrigerant leakage detection result is determined to be refrigerant leakage.

[0098] If the compressor winding temperature is less than the preset winding temperature threshold, the refrigerant leakage detection result is determined to be no refrigerant leakage.

[0099] In an optional example, the detection unit is also used for:

[0100] If the voltage value is greater than or equal to the preset voltage threshold and the power value is less than the preset power threshold, then the electrical information of the device is determined to meet the second preset condition; or,

[0101] If the voltage value is less than the preset voltage threshold and the current value is less than the preset current threshold, then the electrical information of the device is determined to meet the second preset condition.

[0102] In an optional example, the detection unit is also used for:

[0103] The evaporator outlet temperature in the evaporator temperature information is compared with the preset outlet temperature threshold.

[0104] If the evaporator outlet temperature is greater than the preset outlet temperature threshold, the refrigerant leak detection result is determined to be a refrigerant leak.

[0105] If the evaporator outlet temperature is not greater than the preset outlet temperature threshold, then the refrigerant leak detection result is determined to be no refrigerant leak.

[0106] In an optional example, determining the cell is also used for:

[0107] If the refrigerant leak detection result is a refrigerant leak, then update the historical refrigerant leak duration and historical refrigerant leak count in the historical detection record to obtain the target refrigerant leak duration and target refrigerant leak count;

[0108] If the duration of the target refrigerant leak is less than the preset duration threshold, or the number of times the target refrigerant leaks is less than the preset number of times threshold, then the target detection result is determined to be no refrigerant leak.

[0109] If the duration of the target refrigerant leak is greater than the preset duration threshold, and the number of target refrigerant leaks is greater than the preset number of leaks threshold, then the target detection result is determined to be a refrigerant leak.

[0110] The solution in this embodiment uses the mapping relationship between ambient temperature range and equipment operating condition information to obtain the target equipment operating condition information corresponding to the target ambient temperature for refrigerant leak detection, thereby avoiding the influence of different ambient temperatures on refrigerant leak detection and improving the accuracy of refrigerant leak detection.

[0111] Accordingly, embodiments of this application also provide a refrigerant leak detection system, such as... Figure 3 As shown, Figure 3This is a schematic diagram of the refrigerant leak detection system provided in an embodiment of this application. The refrigerant leak detection system 1100 includes a processor 1101 with one or more processing cores, a memory 1102 with one or more computer-readable storage media, and a computer program stored on the memory 1102 and executable on the processor. The processor 1101 and the memory 1102 are electrically connected. Those skilled in the art will understand that the structure of the refrigerant leak detection system shown in the figure does not constitute a limitation on the refrigerant leak detection system, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0112] The processor 1101 is the control center of the refrigerant leak detection system 1100. It connects to various parts of the system via various interfaces and lines. By running or loading software programs and / or units stored in the memory 1102, and by calling data stored in the memory 1102, it executes various functions and processes data of the refrigerant leak detection system 1100, thereby providing overall monitoring of the system. The processor 1101 can be a CPU, GPU, network processor (NP), etc., and can implement or execute the methods, steps, and logic diagrams disclosed in the embodiments of this application.

[0113] In this embodiment of the application, the processor 1101 in the refrigerant leak detection system 1100 will load the instructions corresponding to the processes of one or more applications into the memory 1102 according to the following steps, and the processor 1101 will run the applications stored in the memory 1102 to realize various functions. For specific implementation, please refer to the previous embodiments, which will not be repeated here.

[0114] Optional, such as Figure 3 As shown, the refrigerant leak detection system 1100 also includes: a touch screen display 1103, an radio frequency circuit 1104, an audio circuit 1105, an input unit 1106, and a power supply 1107. The processor 1101 is electrically connected to the touch screen display 1103, the radio frequency circuit 1104, the audio circuit 1105, the input unit 1106, and the power supply 1107. Those skilled in the art will understand that... Figure 3 The refrigerant leak detection system structure shown in the figure does not constitute a limitation on the refrigerant leak detection system. It may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0115] The touch display screen 1103 can be used to display a graphical user interface (GUI) and receive operation commands generated by the user interacting with the GUI. The touch display screen 1103 may include a display panel and a touch panel. The display panel can be used to display information input by the user or information provided to the user, as well as various graphical user interfaces of the refrigerant leak detection system. These graphical user interfaces can be composed of graphics, text, icons, video, and any combination thereof. Optionally, the display panel can be configured using a liquid crystal display (LCD), organic light-emitting diode (OLED), or other similar technology. The touch panel can be used to collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near the touch panel), generate corresponding operation commands, and execute the corresponding program according to the operation commands. Optionally, the touch panel may include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch location and the signal generated by the touch operation, transmitting the signal to the touch controller. The touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends it to the processor 1101. It can also receive and execute commands from the processor 1101. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it transmits the information to the processor 1101 to determine the type of touch event. Subsequently, the processor 1101 provides corresponding visual output on the display panel based on the type of touch event. In this embodiment, the touch panel and the display panel can be integrated into the touch display screen 1103 to achieve input and output functions. However, in some embodiments, the touch panel and the touch display screen 1103 can be implemented as two independent components to achieve input and output functions. That is, the touch display screen 1103 can also be used as part of the input unit 1106 to achieve input functions.

[0116] The radio frequency circuit 1104 can be used to transmit and receive radio frequency signals to establish wireless communication with network devices or other refrigerant leak detection systems, and to transmit and receive signals with network devices or other refrigerant leak detection systems.

[0117] Audio circuit 1105 can be used to provide an audio interface between the user and the refrigerant leak detection system via a speaker and microphone. Audio circuit 1105 can convert received audio data into electrical signals and transmit them to the speaker, where the speaker converts them into sound signals for output. Conversely, the microphone converts collected sound signals into electrical signals, which are then received by audio circuit 1105, converted back into audio data, and then processed by processor 1101 before being transmitted via radio frequency circuit 1104 to, for example, another refrigerant leak detection system, or the audio data can be output to memory 1102 for further processing. Audio circuit 1105 may also include an earphone jack to provide communication between external headphones and the refrigerant leak detection system.

[0118] The input unit 1106 can be used to receive input numbers, characters, or user characteristic information (such as fingerprints, iris, facial information, etc.), and to generate keyboard, mouse, joystick, optical, or trackball signal inputs related to user settings and function control.

[0119] Power supply 1107 is used to power the various components of refrigerant leak detection system 1100. Optionally, power supply 1107 can be logically connected to processor 1101 through power management system, thereby enabling functions such as charging, discharging, and power consumption management through power management system. Power supply 1107 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0120] although Figure 3 As not shown in the diagram, the refrigerant leak detection system 1100 may also include a camera, sensor, wireless fidelity module, Bluetooth module, etc., which will not be described in detail here.

[0121] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0122] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0123] Therefore, embodiments of this application provide a computer-readable storage medium storing multiple computer programs that can be loaded by a processor to execute any of the refrigerant leak detection methods provided in this application. The computer program can execute the refrigerant leak detection method; specific implementations can be found in the preceding embodiments and will not be repeated here.

[0124] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0125] Since the computer program stored in the computer-readable storage medium can execute any of the refrigerant leak detection methods provided in the embodiments of this application, the beneficial effects that any of the refrigerant leak detection methods provided in the embodiments of this application can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0126] According to one aspect of this application, a computer program product or computer program is also provided, comprising computer instructions stored in a computer-readable storage medium. A processor of the refrigerant leak detection system reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the refrigerant leak detection system to perform the methods provided in the various optional implementations of the above embodiments.

[0127] In the above embodiments of the refrigerant leak detection device, computer-readable storage medium, refrigerant leak detection system, and computer program product, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes and beneficial effects of the refrigerant leak detection device, computer-readable storage medium, computer program product, refrigerant leak detection system, and their corresponding units described above can be referred to the description of the refrigerant leak detection method in the above embodiments, and will not be repeated here.

[0128] The foregoing has provided a detailed description of a refrigerant leak detection method, apparatus, system, computer-readable storage medium, and computer program product provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for detecting refrigerant leakage, characterized in that, The refrigerant leakage detection method includes: Obtain the target ambient temperature; Based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information, the target equipment operating condition information corresponding to the target ambient temperature is obtained, and refrigerant leakage detection is performed based on the target equipment operating condition information to obtain the refrigerant leakage detection result. Obtain historical detection records, and determine the target detection result based on the refrigerant leak detection results and the historical detection records; The process involves obtaining target equipment operating condition information corresponding to the target ambient temperature based on a preset mapping relationship between ambient temperature ranges and preset equipment operating condition information, and performing refrigerant leak detection based on the target equipment operating condition information to obtain refrigerant leak detection results, including: If the target ambient temperature falls within the first ambient temperature range, then according to the mapping relationship, the target equipment operating condition information corresponding to the target ambient temperature is obtained as the evaporator temperature information; refrigerant leakage detection is performed based on the evaporator temperature information and the target ambient temperature to obtain the refrigerant leakage detection result; If the target ambient temperature falls within the second ambient temperature range, then based on the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information, the target equipment operating condition information corresponding to the target ambient temperature is obtained as equipment electrical information and compressor exhaust temperature; refrigerant leakage detection is performed based on the equipment electrical information and the compressor exhaust temperature to obtain the refrigerant leakage detection result; If the target ambient temperature falls within the third ambient temperature range, then according to the mapping relationship, the target equipment operating condition information corresponding to the target ambient temperature is obtained as the evaporator temperature information; refrigerant leakage detection is performed based on the evaporator temperature information to obtain the refrigerant leakage detection result; The refrigerant leak detection based on the electrical information of the equipment and the compressor discharge temperature, to obtain the refrigerant leak detection result, includes: If the electrical information of the equipment meets the second preset condition, the compressor winding temperature is determined based on the compressor exhaust temperature and the target ambient temperature. If the compressor winding temperature is greater than or equal to a preset winding temperature threshold, the refrigerant leakage detection result is determined to be refrigerant leakage. If the compressor winding temperature is less than the preset winding temperature threshold, the refrigerant leakage detection result is determined to be no refrigerant leakage. The electrical information of the device includes voltage, current, and power values; The step of acquiring historical detection records and determining the target detection result based on the refrigerant leak detection result and the historical detection records includes: If the refrigerant leak detection result is a refrigerant leak, then update the historical refrigerant leak duration and historical refrigerant leak count in the historical detection record to obtain the target refrigerant leak duration and target refrigerant leak count; If the duration of the target refrigerant leak is less than a preset duration threshold or the number of target refrigerant leaks is less than a preset number threshold, then the target detection result is determined to be no refrigerant leak. If the duration of the target refrigerant leak exceeds a preset duration threshold, and the number of target refrigerant leaks exceeds a preset number threshold, then the target detection result is determined to be a refrigerant leak.

2. The refrigerant leakage detection method according to claim 1, characterized in that, The refrigerant leak detection based on the evaporator temperature information and the target ambient temperature, to obtain the refrigerant leak detection result, includes: Obtain the reference temperature of the evaporator inner tube and the reference ambient temperature at the moment of startup; Calculate the first difference between the evaporator inner tube temperature and the target ambient temperature, the second difference between the evaporator inner tube reference temperature and the reference ambient temperature, and the third difference between the evaporator inner tube temperature and the evaporator inner tube reference temperature in the evaporator temperature information. If the first difference, the second difference, and the third difference satisfy the first preset condition, then the refrigerant leak detection result is a refrigerant leak. If the first difference, the second difference, and the third difference do not meet the first preset condition, then the refrigerant leakage detection result is that there is no refrigerant leakage.

3. The refrigerant leakage detection method according to claim 1, characterized in that, The step of determining that the electrical information of the device meets the second preset condition includes: If the voltage value is greater than or equal to a preset voltage threshold and the power value is less than a preset power threshold, then the electrical information of the device is determined to meet the second preset condition. If the voltage value is less than a preset voltage threshold and the current value is less than a preset current threshold, then the electrical information of the device is determined to meet the second preset condition.

4. The refrigerant leakage detection method according to claim 1, characterized in that, The refrigerant leak detection based on the evaporator temperature information, to obtain the refrigerant leak detection result, includes: The evaporator outlet temperature in the evaporator temperature information is compared with the preset outlet temperature threshold. If the evaporator outlet temperature is greater than the preset outlet temperature threshold, the refrigerant leak detection result is determined to be a refrigerant leak. If the evaporator outlet temperature is not greater than the preset outlet temperature threshold, then the refrigerant leak detection result is determined to be no refrigerant leak.

5. A refrigerant leak detection device, characterized in that, The device includes: The acquisition unit is used to acquire the target ambient temperature; The detection unit is used to obtain the target equipment operating condition information corresponding to the target ambient temperature according to the mapping relationship between the preset ambient temperature range and the preset equipment operating condition information, and to perform refrigerant leakage detection based on the target equipment operating condition information to obtain the refrigerant leakage detection result. A determining unit is used to acquire historical detection records and determine the target detection result based on the refrigerant leak detection result and the historical detection records; The detection unit is further configured to: if the target ambient temperature belongs to a first ambient temperature range, obtain the target equipment operating condition information corresponding to the target ambient temperature as evaporator temperature information according to the mapping relationship; perform refrigerant leakage detection based on the evaporator temperature information and the target ambient temperature to obtain a refrigerant leakage detection result; if the target ambient temperature belongs to a second ambient temperature range, obtain the target equipment operating condition information corresponding to the target ambient temperature as equipment electrical information and compressor exhaust temperature according to the preset mapping relationship between the ambient temperature range and the preset equipment operating condition information; perform refrigerant leakage detection based on the equipment electrical information and the compressor exhaust temperature to obtain a refrigerant leakage detection result; if the target ambient temperature belongs to a third ambient temperature range, obtain the target equipment operating condition information corresponding to the target ambient temperature as evaporator temperature information according to the mapping relationship; perform refrigerant leakage detection based on the evaporator temperature information to obtain a refrigerant leakage detection result. The detection unit is also used to: if the electrical information of the equipment meets the second preset condition, determine the compressor winding temperature based on the compressor exhaust temperature and the target ambient temperature; if the compressor winding temperature is greater than or equal to a preset winding temperature threshold, determine the refrigerant leakage detection result as refrigerant leakage; if the compressor winding temperature is less than the preset winding temperature threshold, determine the refrigerant leakage detection result as no refrigerant leakage. The electrical information of the device includes voltage, current, and power values; The determining unit is further configured to: if the refrigerant leak detection result is a refrigerant leak, update the historical refrigerant leak duration and historical refrigerant leak count in the historical detection record to obtain the target refrigerant leak duration and target refrigerant leak count; if the target refrigerant leak duration is less than a preset duration threshold or the target refrigerant leak count is less than a preset count threshold, determine the target detection result as no refrigerant leak; if the target refrigerant leak duration is greater than a preset duration threshold for comparison, and the target refrigerant leak count is greater than a preset count threshold, determine the target detection result as a refrigerant leak.

6. A refrigerant leak detection system, characterized in that, It includes a processor and a memory, the memory storing a computer program; the processor loads the computer program from the memory to perform the steps of the refrigerant leak detection method as described in any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program adapted for loading by a processor to perform the steps of the refrigerant leak detection method as described in any one of claims 1-4.

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