Refrigerant charging method, device, storage medium, and computer program product

Abstract

The present disclosure relates to a refrigerant charging method, device, storage medium and computer program product, and relates to the technical field of refrigerants, and comprises: obtaining a first charging amount, which is a refrigerant charging amount provided by a charging machine to an outdoor unit of an air conditioner; obtaining a second charging amount, which is an actual refrigerant charging amount charged by the charging machine into the outdoor unit of the air conditioner; in the case that there is a deviation between the first charging amount and the second charging amount, adjusting the first charging amount to a third charging amount according to the deviation; the deviation value between the third charging amount and the first charging amount is equal to the deviation value between the first charging amount and the second charging amount. Using the refrigerant charging method proposed in the present disclosure, the amount of refrigerant charged into the outdoor unit of the air conditioner can be automatically adjusted according to the deviation, which improves the charging efficiency and guarantees the consistency of the performance of each outdoor unit of the air conditioner.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of refrigerant technology, and in particular, to a refrigerant charging method and device, a storage medium and a computer program product. BACKGROUND

[0002] The refrigerant, also known as the refrigerant, is a working fluid used in an air conditioning system to transfer heat energy and produce refrigeration effect. It achieves heat transfer through heat absorption evaporation and heat release condensation. For example, the refrigerant absorbs heat in the indoor air and evaporates, so that the indoor air temperature drops to achieve the effect of refrigeration on the indoor air. The high-temperature and high-pressure gaseous refrigerant in the indoor air flows into the outdoor unit, and the refrigerant condenses from the gas to the liquid, releasing heat to the outdoor air to achieve the effect of heating the indoor air.

[0003] In the related art, in the field of refrigerants, the refrigerant is charged into the air conditioner outdoor unit. When the refrigerant charged into the air conditioner outdoor unit is inaccurate, manual calibration of the charged refrigerant is required, and the manual calibration method is low in efficiency. SUMMARY

[0004] To overcome the problems in the related art, the present disclosure provides a refrigerant charging method and device, a storage medium and a computer program product.

[0005] According to a first aspect of an embodiment of the present disclosure, a refrigerant charging method is provided, comprising:

[0006] obtaining a first charging amount, the first charging amount being a refrigerant charging amount provided by a charging machine to an air conditioner outdoor unit;

[0007] obtaining a second charging amount, the second charging amount being an actual refrigerant charging amount charged by the charging machine into the air conditioner outdoor unit;

[0008] in the case that there is a deviation between the first charging amount and the second charging amount, adjusting the first charging amount to a third charging amount according to the deviation; the deviation value between the third charging amount and the first charging amount is equal to the deviation value between the first charging amount and the second charging amount.

[0009] Optionally, in the case that there is a deviation between the first charging amount and the second charging amount, adjusting the first charging amount to a third charging amount according to the deviation comprises:

[0010] in the case that there is a deviation between the first charging amount and the second charging amount, determining the deviation value between the first charging amount and the second charging amount;

[0011] obtaining the third charging amount according to the first charging amount and the deviation value;

[0012] adjusting the first filling amount to the third filling amount.

[0013] Optionally, the method further comprises:

[0014] correcting the second filling amount to the first filling amount in case that there is a deviation between the first filling amount and the second filling amount.

[0015] Optionally, the correcting the second filling amount to the first filling amount in case that there is a deviation between the first filling amount and the second filling amount comprises:

[0016] determining an abnormal operation parameter of the filling machine in case that there is a deviation between the first filling amount and the second filling amount;

[0017] correcting the abnormal operation parameter to a normal operation parameter to correct the second filling amount to the first filling amount.

[0018] Optionally, the method further comprises:

[0019] taking a historical operation parameter of the filling machine as the normal operation parameter; or,

[0020] taking an operation parameter of a target filling machine of the same type as the filling machine as the normal operation parameter.

[0021] Optionally, the determining the abnormal operation parameter of the filling machine comprises:

[0022] taking the operation parameter of the filling machine as the abnormal operation parameter in case that a deviation value between the operation parameter of the filling machine and a historical operation parameter of the filling machine is greater than a first preset value; or,

[0023] taking the operation parameter of the filling machine as the abnormal operation parameter in case that a deviation value between the operation parameter of the filling machine and an operation parameter of a target filling machine is greater than a second preset value, the target filling machine being a filling machine of the same type as the filling machine.

[0024] Optionally, the method further comprises:

[0025] outputting a first prompt information in case that there is a deviation between the first filling amount and the second filling amount and the abnormal operation parameter of the filling machine cannot be identified, the abnormal prompt information being used to prompt a failure of the filling machine.

[0026] Optionally, the correcting the abnormal operation parameter to a normal operation parameter comprises:

[0027] In a case where a deviation value between the abnormal operation parameter and the normal operation parameter is less than a third preset value, the abnormal operation parameter is corrected to the normal operation parameter.

[0028] Optionally, the method further includes:

[0029] In a case where a deviation value between the abnormal operation parameter and the normal operation parameter is greater than or equal to a third preset value, a second prompt information is output; the second prompt information includes the normal operation parameter.

[0030] Optionally, the abnormal operation parameter of the filling machine includes at least one of:

[0031] A refrigerant temperature, a vacuum degree of the filling machine, a filling time length of the filling machine, a filling speed curve of the filling machine, a filling pressure curve of the filling machine, a filling flow of the filling machine, and an ambient temperature.

[0032] Optionally, the method further includes:

[0033] Obtaining a first weight before the air conditioner outdoor unit is filled with the first filling amount and a second weight after the air conditioner outdoor unit is filled with the first filling amount;

[0034] Obtaining the second filling amount according to the first weight and the second weight.

[0035] Optionally, the obtaining of the first weight before the air conditioner outdoor unit is filled with the first filling amount and the second weight after the air conditioner outdoor unit is filled with the first filling amount includes:

[0036] In a case where the preset parameter cannot be obtained, the first weight and the second weight are obtained through an automatic calibration model.

[0037] According to a second aspect of the embodiments of the present disclosure, a refrigerant filling device is provided, including:

[0038] A first obtaining module configured to obtain a first filling amount, the first filling amount being a refrigerant filling amount provided by a filling machine to an air conditioner outdoor unit;

[0039] A second obtaining module configured to obtain a second filling amount, the second filling amount being an actual refrigerant filling amount filled by the filling machine into the air conditioner outdoor unit;

[0040] An adjusting module configured to, in a case where there is a deviation between the first filling amount and the second filling amount, adjust the first filling amount to a third filling amount according to the deviation; a deviation value between the third filling amount and the first filling amount is equal to a deviation value between the first filling amount and the second filling amount.

[0041] According to a third aspect of the embodiments of the present disclosure, a refrigerant charging device is provided, comprising:

[0042] a processor;

[0043] a memory for storing processor-executable instructions;

[0044] wherein the processor is configured to:

[0045] perform the steps of the refrigerant charging method provided by the first aspect of the embodiments of the present disclosure.

[0046] According to a fourth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, having stored thereon computer program instructions which, when executed by a processor, implement the steps of the refrigerant charging method provided by the first aspect of the embodiments of the present disclosure.

[0047] According to a fifth aspect of the embodiments of the present disclosure, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the refrigerant charging method provided by the first aspect of the embodiments of the present disclosure.

[0048] The technical solutions provided by the embodiments of the present disclosure can include the following beneficial effects:

[0049] Since the refrigerant leakage and refrigerant residue in the process of charging refrigerant by the charging machine will cause a deviation between the first charging amount and the actual second charging amount provided by the charging machine for the air conditioner outdoor unit, the refrigerant charging amount of the charging machine for the air conditioner outdoor unit can be controlled to be increased from the first charging amount to the third charging amount, and after removing the deviation caused by the refrigerant leakage or the refrigerant residue from the third charging amount, the charging machine still provides a refrigerant charging amount close to the first charging amount for the air conditioner outdoor unit, which realizes the automatic calibration of the actual refrigerant charging amount to the first charging amount.

[0050] The first aspect does not require manual calibration, and the charging machine can dynamically adjust the third charging amount to the air conditioner according to the deviation, thereby avoiding the low efficiency and low precision defects caused by manual calibration; the second aspect adjusts the charging amount to the third charging amount according to the deviation for the same type of air conditioner outdoor unit, so that even if there is refrigerant leakage or refrigerant residue, the refrigerant amount finally charged into the air conditioner outdoor unit will be close to the first charging amount, so that the refrigerant amounts in each air conditioner outdoor unit of the same type tend to be consistent, and the consistency of the performance of each air conditioner outdoor unit of the same type is ensured.

[0051] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0052] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, further serve to explain the principles of the present disclosure.

[0053] Figure 1 is a step flow chart of a refrigerant charging method according to an exemplary embodiment.

[0054] Figure 2 is a production line schematic diagram of an air conditioner outdoor unit according to an exemplary embodiment.

[0055] Figure 3 is a step flow chart of a refrigerant charging method according to an exemplary embodiment.

[0056] Figure 4 is a step flow chart of a refrigerant charging method according to an exemplary embodiment.

[0057] Figure 5 is a step flow chart of a refrigerant charging method according to an exemplary embodiment.

[0058] Figure 6 is a step flow chart of a refrigerant charging method according to an exemplary embodiment.

[0059] Figure 7 is a schematic diagram of adjusting multiple operating parameters of a charging machine according to an exemplary embodiment.

[0060] Figure 8 is a schematic diagram of selecting different models to achieve accurate refrigerant charging in different scenarios according to an exemplary embodiment.

[0061] Figure 9 is a logic schematic diagram of adjusting abnormal operating parameters to normal operating parameters according to an exemplary embodiment.

[0062] Figure 10 is a block diagram of a refrigerant charging device according to an exemplary embodiment.

[0063] Figure 11 is a block diagram of a refrigerant charging device according to an exemplary embodiment.

[0064] Figure 12 is a block diagram of a refrigerant charging device according to an exemplary embodiment.

[0065] Figure 13 is a block diagram of a chip system according to an exemplary embodiment. DETAILED DESCRIPTION

[0066] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to all alternative embodiments, as would be understood by one skilled in the art. Other than in the examples, or where otherwise indicated, as would be apparent to one skilled in the art, the disclosure is intended to include both hardware and methods. Furthermore, the description is intended to cover all alternatives consistent with the disclosure as would be understood by one skilled in the art.

[0067] The exemplary embodiments described herein represent but a few embodiments consistent with the present disclosure. Conversely, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0068] Figure 1 FIG. 1 is a flowchart of a refrigerant charging method according to an exemplary embodiment, as shown in Figure 1 The refrigerant charging method can be used in a charging machine, including the following steps.

[0069] In step S10, a first charging amount is obtained. The first charging amount is a refrigerant charging amount provided by the charging machine for an air conditioner outdoor unit. Different types of air conditioner outdoor units have different first charging amounts. The charging machine can scan an identification code of the air conditioner outdoor unit and query the first charging amount corresponding to the identification code, thereby providing different first charging amounts for different types of air conditioner outdoor units. The identification code can be a product serial number (SN) of the air conditioner outdoor unit, which is used to uniquely identify the air conditioner outdoor unit.

[0070] The charging machine is a device for charging refrigerant into an air conditioner outdoor unit. The charging machine recovers refrigerant first, purifies the refrigerant to remove impurities in the refrigerant, then performs a vacuumizing operation on the refrigerant to remove air in the refrigerant, ensuring that there is no air in the refrigerant, and finally charges the refrigerant into the air conditioner outdoor unit.

[0071] In order to cool or heat the indoor, an air conditioning system is needed to cool or heat the indoor. The air conditioning system includes an air conditioner indoor unit and an air conditioner outdoor unit. The air conditioner indoor unit, also known as the indoor unit, is usually installed indoors and is responsible for circulating and temperature adjustment of indoor air. The evaporator of the air conditioner indoor unit absorbs heat from the indoor to evaporate the refrigerant, thereby reducing the indoor temperature. The air conditioner outdoor unit, also known as the outdoor unit, is usually installed outdoors and is responsible for releasing the heat absorbed by the air conditioner indoor unit and compressing the refrigerant. The condenser of the air conditioner outdoor unit condenses the gaseous refrigerant into liquid state and releases heat to the outdoor. The air conditioner outdoor unit also includes a compressor for compressing the refrigerant to increase the pressure and temperature of the refrigerant, providing power for the circulation of the refrigerant.

[0072] The refrigerant can be at least one of ammonia (NH3), freon (CFCs), hydrocarbon (HCFCs), and hydrofluorocarbon (HFCs).

[0073] In step S20, a second charge amount is obtained. The second charge amount is an actual refrigerant charge amount filled into the outdoor unit of the air conditioner by the charging machine. Although the charging machine provides the first charge amount of refrigerant to the outdoor unit of the air conditioner, refrigerant leakage can occur during the process of filling the refrigerant into the outdoor unit of the air conditioner, and a part of the refrigerant can be left and adhere to the delivery pipeline of the charging machine, resulting in that the second charge amount actually filled into the outdoor unit of the air conditioner by the charging machine is less than the first charge amount provided by the charging machine.

[0074] For example, taking the first charge amount of 700g and the second charge amount of 695g as an example, after the charging machine scans the identification code of the outdoor unit of the air conditioner, it is determined that the refrigerant charge amount required by the outdoor unit of the air conditioner is 700g, and then 700g of refrigerant is provided to the outdoor unit of the air conditioner. However, refrigerant leakage or refrigerant residue can occur during the process of filling the refrigerant, resulting in that the actual refrigerant charge amount filled into the outdoor unit of the air conditioner by the charging machine is 695g.

[0075] In step S30, in the case that there is a deviation between the first charge amount and the second charge amount, the first charge amount is adjusted to a third charge amount according to the deviation. Optionally, in the case that there is a deviation between the first charge amount and the second charge amount, or the deviation is greater than a preset deviation, the first charge amount is adjusted to a third charge amount according to the deviation.

[0076] The third charge amount is greater than the first charge amount, the first charge amount is greater than the second charge amount, and the deviation value between the third charge amount and the first charge amount is equal to the deviation value between the first charge amount and the second charge amount. It can be understood that the deviation value between the third charge amount and the first charge amount, and the deviation value between the first charge amount and the second charge amount are both the refrigerant charge amount leaked or left in the charging machine during the process of filling the refrigerant into the outdoor unit of the air conditioner by the charging machine.

[0077] For example, the outdoor unit of the air conditioner requires a first charge amount of 700g, and the charging machine provides the outdoor unit of the air conditioner with a first charge amount of 700g. However, refrigerant leakage or refrigerant residue can occur during the process of filling the refrigerant, resulting in that the second charge amount actually filled into the outdoor unit of the air conditioner by the charging machine is 695g. Therefore, there is a deviation of 5g of refrigerant between the first charge amount and the second charge amount. When the charging machine provides refrigerant to the same type of outdoor unit of the air conditioner next time, a third charge amount of 705g will be provided to the outdoor unit of the air conditioner according to the deviation of 5g, even if there is 5g of refrigerant leakage or refrigerant residue, the actual refrigerant charge amount filled into the outdoor unit of the air conditioner by the charging machine will reach 700g, thereby meeting the refrigerant amount requirement of the outdoor unit of the air conditioner.

[0078] It can be understood that for each air conditioner, the filling machine determines the deviation between the first filling amount and the second filling amount of the last air conditioner, and adjusts the filling amount provided to the next air conditioner from the first filling amount to the third filling amount according to the deviation, so that the refrigerant filling amount of the next air conditioner can be adaptively adjusted according to the deviation of the refrigerant of the last air conditioner.

[0079] In the related art, when there is a deviation between the refrigerant filling amount provided by the filling machine to the air conditioner outdoor unit and the actual refrigerant filling amount filled by the filling machine into the air conditioner outdoor unit, the staff will control the refrigerant filling amount provided by the filling machine to the air conditioner outdoor unit next time according to experience. This manual calibration method is not only low in efficiency, but also has a deviation in precision when the refrigerant filling amount provided by the filling machine is controlled by manual experience. The precision of manual calibration is usually between 0.3% and 0.5%, and the accuracy of calibration cannot be guaranteed every time.

[0080] In the embodiments of the present disclosure, when there is a deviation between the first filling amount provided by the filling machine to the air conditioner outdoor unit and the second filling amount actually filled by the filling machine into the air conditioner outdoor unit, the first filling amount is adjusted to the third filling amount according to the deviation.

[0081] In this process, since there is refrigerant leakage and refrigerant residue in the process of filling refrigerant by the filling machine, there is a deviation between the first filling amount provided by the filling machine to the air conditioner outdoor unit and the actual second filling amount. Therefore, the refrigerant filling amount provided by the filling machine to the air conditioner outdoor unit next time can be adjusted from the first filling amount to the third filling amount. After removing the deviation caused by refrigerant leakage or refrigerant residue on the basis of the third filling amount, the filling machine still provides a refrigerant filling amount close to the first filling amount to the air conditioner outdoor unit.

[0082] The first aspect does not require manual calibration, and the filling machine can dynamically adjust the third filling amount filled into the air conditioner according to the deviation, thereby avoiding the low efficiency and low precision defects caused by manual calibration. The second aspect adaptively adjusts the filling amount to the third filling amount according to the deviation for the same type of air conditioner outdoor unit. Even if there is refrigerant leakage or refrigerant residue, the final refrigerant amount filled into the air conditioner outdoor unit will be close to the first filling amount, so that the refrigerant amounts in each air conditioner outdoor unit of the same type tend to be consistent, and the consistency of the performance of each air conditioner outdoor unit of the same type is guaranteed.

[0083] Figure 3 is a schematic diagram of the present disclosure related to obtaining the actual second filling amount of the filling machine filled into the air conditioner outdoor unit, which includes the following steps:

[0084] In step S40, the first weight of the air conditioner outdoor unit before the first charging amount is filled and the second weight of the air conditioner outdoor unit after the first charging amount is filled are obtained.

[0085] Referring to Figure 2 As shown in the drawings, the production line for producing air conditioner outdoor units includes an import conveyor belt and an export conveyor belt. The air conditioner outdoor units enter the production line through the import conveyor belt and are output from the production line through the two export conveyor belts. When the air conditioner outdoor units pass through the first weighing station, the amount of refrigerant in the refrigerant tank of the air conditioner outdoor units is weighed for the first time at the first weighing station. The amount of refrigerant weighed at the first weighing station is the first weight. The air conditioner outdoor units are then transmitted from the first weighing station to the buffer station upstream of the export conveyor belt. The buffer station upstream is used to temporarily store the air conditioner outdoor units. The air conditioner outdoor units are blocked on the buffer station upstream by a baffle. After the air conditioner outdoor units on the filling station are filled, the baffle releases the air conditioner outdoor units on the buffer station upstream to be transmitted to the filling station. When the air conditioner outdoor units are transmitted to the filling station, the filling machines on each filling station fill the refrigerant into the refrigerant tank of the air conditioner outdoor units through the filling gun. There is still a baffle between the filling station and the buffer station downstream. After the air conditioner outdoor units on the filling station are filled, the baffle releases the air conditioner outdoor units on the filling station to be transmitted to the buffer station downstream. The air conditioner outdoor units then pass through the buffer station downstream to reach the second weighing station. The amount of refrigerant in the refrigerant tank of the air conditioner outdoor units is weighed for the second time at the second weighing station. The amount of refrigerant weighed at the second weighing station is the second weight.

[0086] Among them, at the first weighing station and the second weighing station, the refrigerant tank of the air conditioner outdoor unit can be weighed by an electronic scale. The weighing accuracy of the electronic scale can reach 0.1g, and the range is 30Kg.

[0087] Among them, at the filling station, when the sensor on the filling machine detects that the filling machine fills the refrigerant into the refrigerant tank of the air conditioner outdoor unit, the code scanning gun on the filling machine binds the air conditioner outdoor unit with the filling machine, indicating that the filling machine continues to fill the refrigerant into the air conditioner outdoor unit.

[0088] The first weight is the weight of the refrigerant tank itself when the air conditioner outdoor unit has not injected the refrigerant into the refrigerant tank of the air conditioner outdoor unit at the first weighing station. The second weight is the weight of the refrigerant tank plus the refrigerant when the air conditioner outdoor unit has injected the refrigerant into the refrigerant tank of the air conditioner outdoor unit at the second weighing station.

[0089] In step S50, the second charging amount is obtained according to the first weight and the second weight.

[0090] The second weight can be subtracted from the first weight to obtain the second charging amount actually filled by the filling machine into the air conditioner outdoor unit.

[0091] By the technical solution, the first weight of the refrigerant tank before the air conditioner outdoor unit is filled with the first filling amount and the second weight of the refrigerant tank after the air conditioner outdoor unit is filled with the first filling amount can be calculated; the second weight minus the first weight is the actual second filling amount filled by the filling machine to the air conditioner outdoor unit, which realizes automatic calculation of the second filling amount.

[0092] Figure 4 The above step S30 involves an exemplary scheme for adjusting the first filling amount to the third filling amount, which includes the following steps:

[0093] In step S31, if there is a deviation between the first filling amount and the second filling amount, the deviation value between the first filling amount and the second filling amount is determined.

[0094] The difference between the first filling amount and the second filling amount can be taken as the deviation value between the first filling amount and the second filling amount.

[0095] For example, if the first filling amount is 700g and the second filling amount is 695g, the deviation value between the first filling amount and the second filling amount is 5g.

[0096] In step S32, the third filling amount is obtained according to the first filling amount and the deviation value.

[0097] The third filling amount can be obtained by superimposing the deviation value on the first filling amount, and the third filling amount is obtained on the basis of considering the deviation value caused by refrigerant leakage and refrigerant residue and other factors on the basis of the first filling amount.

[0098] In step S33, the first filling amount is adjusted to the third filling amount.

[0099] Optionally, if the filling machine provided the first filling amount to the air conditioner outdoor unit last time, it will provide the third filling amount to the air conditioner outdoor unit next time.

[0100] For example, the filling machine provided 700g of refrigerant filling amount to air conditioner outdoor unit A last time, and will provide 705g of refrigerant filling amount to air conditioner outdoor unit B next time, and air conditioner outdoor unit A and air conditioner outdoor unit B are the same type of air conditioner outdoor unit.

[0101] By the technical solution, the third charging quantity can be obtained by superimposing the deviation value caused by the refrigerant leakage and the refrigerant residue of the charging machine in the last charging on the basis of the first charging quantity, so that the charging machine provides the third charging quantity of refrigerant for the air conditioner outdoor unit next time. Even if there is a deviation value caused by refrigerant leakage and refrigerant residue, after subtracting the deviation value on the basis of the third charging quantity, the charging machine will actually charge the first charging quantity of refrigerant into the air conditioner outdoor unit. In this way, except that the refrigerant quantity charged into the air conditioner outdoor unit by the charging machine for the first time will have a deviation, the refrigerant quantity charged into the air conditioner outdoor unit each time thereafter will be balanced around the first charging quantity, realizing the consistency of the refrigerant quantity in each air conditioner outdoor unit, and further ensuring the consistency of the performance of each air conditioner outdoor unit.

[0102] Figure 5 Another exemplary scheme for modifying the first charging quantity proposed by an exemplary embodiment of the present disclosure includes:

[0103] In the case that there is a deviation between the first charging quantity and the second charging quantity, the second charging quantity is modified to the first charging quantity.

[0104] For example, if the first charging quantity provided by the charging machine for the air conditioner outdoor unit is 700g, but the second charging quantity actually charged into the air conditioner outdoor unit by the charging machine is 695g, it may indicate that the charging flow of the charging machine is too large and the delivery pipe of the air conditioner outdoor unit is too small, and the refrigerant provided by the charging machine is sprayed out from the interface of the air conditioner outdoor unit, resulting in a 5g refrigerant leakage. At this time, the running parameters of the charging machine itself can be modified to make the first charging quantity provided by the charging machine for the air conditioner outdoor unit equal to the second charging quantity actually charged into the air conditioner outdoor unit by the charging machine in the subsequent time, so as to modify the second charging quantity to the first charging quantity.

[0105] Optionally, referring to Figure 5 The modification of the second charging quantity to the first charging quantity includes the following sub-steps:

[0106] Sub-step A1, in the case that there is a deviation between the first charging quantity and the second charging quantity, determining the abnormal running parameter of the charging machine.

[0107] The running parameter of the charging machine is a device parameter when the charging machine is running and / or an environmental parameter in which the charging machine is located.

[0108] Referring to Figure 7The parameters of the filling machine include maintenance factors, filling machine parameters, environmental parameters, product parameters, and process timing data. The maintenance factors include sensor maintenance time, filling machine maintenance time, refrigerant arrival time, and refrigerant model. The filling machine parameters include filling time, filling machine start time, refrigerant density, refrigerant temperature, and vacuum degree. The environmental parameters include ambient temperature and atmospheric pressure. The product parameters include refrigerant pipe volume, expansion valve opening, refrigerant pipe shape, and product model. The process timing data includes filling flow, filling pressure curve, filling speed curve, and valve opening curve during the filling process of the filling machine.

[0109] In the above-mentioned parameters of the filling machine, the sensor maintenance time (the sensor is a sensor for sensing whether the filling machine is filled with refrigerant for the air conditioner outdoor unit), the filling machine maintenance time, the refrigerant arrival time, the refrigerant model, the filling machine start time, the atmospheric pressure, and the refrigerant pipe volume are operating parameters that have no effect on the filling accuracy. The refrigerant density, the expansion valve opening, the refrigerant pipe shape, and the valve opening curve are operating parameters that cannot be monitored. The filling time, the refrigerant temperature, the vacuum degree, the ambient temperature, the filling flow, the filling pressure curve, and the filling speed curve are operating parameters that have an effect on the filling accuracy and can be monitored. Therefore, the embodiments of the present disclosure can monitor these operating parameters that have an effect on the filling accuracy and can be detected, and regard these operating parameters as abnormal operating parameters when these operating parameters are abnormal.

[0110] The field is “can” operating parameter, which means that this part of the operating parameter is a parameter that can be adjusted by the filling machine itself. The field is “TPM” operating parameter, which means that this part of the operating parameter is a parameter that needs to be adjusted by a person.

[0111] It can be understood that, in the case that there is a deviation between the first filling amount provided by the filling machine and the second filling amount actually filled into the air conditioner outdoor unit, it means that the filling machine itself may have a fault. Therefore, each of the plurality of operating parameters of the filling machine can be self-checked to determine whether each of the operating parameters is abnormal, so as to check the abnormal operating parameter that is abnormal, and correct the abnormal operating parameter to a normal operating parameter. After the operating parameters of the filling machine are normal, the second filling amount actually filled into the air conditioner outdoor unit by the filling machine can reach the first filling amount required by the air conditioner outdoor unit.

[0112] The following two schemes can be used to determine whether the operating parameter is an abnormal operating parameter:

[0113] In a first scheme, the operating parameter of the filling machine is taken as the abnormal operating parameter when a deviation value between the operating parameter of the filling machine and a historical operating parameter of the filling machine is greater than a first preset value.

[0114] The historical operating parameter of the filling machine can be an average value of a plurality of historical operating parameters of the filling machine.

[0115] When the deviation value between the operating parameter of the filling machine and the historical operating parameter of the filling machine is greater than the first preset value, it indicates that the operating parameter of the filling machine is abnormal and does not conform to the change rule of the previous operating parameter, and thus the current operating parameter of the filling machine can be taken as the abnormal operating parameter.

[0116] For example, taking the operating parameter of the filling machine as the filling flow rate, when the filling flow rate of the filling machine is significantly lower or higher than the historical filling flow rate of the filling machine, it indicates that the current filling flow rate of the filling machine is abnormal and causes the deviation between the first filling amount and the second filling amount, and thus the current filling flow rate of the filling machine can be taken as the abnormal filling flow rate, so that the abnormal filling flow rate is corrected in the subsequent process.

[0117] In a second scheme, the operating parameter of the filling machine is taken as the abnormal operating parameter when a deviation value between the operating parameter of the filling machine and an operating parameter of a target filling machine is greater than a second preset value, the target filling machine being a filling machine of the same type as the filling machine.

[0118] The operating parameter of the target filling machine can be an average value of operating parameters of a plurality of target filling machines.

[0119] When the deviation value between the operating parameter of the filling machine and the operating parameter of the target filling machine is greater than the second preset value, it indicates that the operating parameter of the filling machine is abnormal and different from the change rule of the operating parameter of the other target filling machines, and thus the current operating parameter of the filling machine can be taken as the abnormal operating parameter.

[0120] For example, taking the operating parameter of the filling machine as the filling flow rate, when the filling flow rate of the filling machine is significantly lower or higher than the filling flow rate of the other target filling machines, it indicates that the current filling flow rate is abnormal and causes the deviation between the first filling amount and the second filling amount, and thus the current filling flow rate of the filling machine can be taken as the abnormal filling flow rate, so that the abnormal filling flow rate is corrected in the subsequent process.

[0121] In sub-step A2, the abnormal operating parameter is corrected to a normal operating parameter to correct the second filling amount to the first filling amount.

[0122] Optionally, the historical operation parameters of the filling machine can be taken as the current normal operation parameters of the filling machine, and the abnormal operation parameters of the filling machine can be replaced by the normal operation parameters.

[0123] Optionally, the operation parameters of the target filling machine can be taken as the normal operation parameters, and the abnormal operation parameters of the filling machine can be replaced by the normal operation parameters.

[0124] In some scenarios, in the case that there is a deviation between the first filling amount provided by the filling machine to the outdoor unit of the air conditioner and the second filling amount actually filled by the filling machine into the outdoor unit of the air conditioner, the self-checking can be performed on multiple operation parameters of the filling machine, such as checking whether the operation parameters such as the refrigerant temperature, the vacuum degree of the filling machine, the filling time of the filling machine, the filling speed curve of the filling machine, the filling pressure curve of the filling machine, the filling flow of the filling machine, the environmental temperature, etc. are abnormal. Among these operation parameters, if the filling time is less than the normal filling time, it may cause the refrigerant amount filled by the filling machine to the outdoor unit of the air conditioner to be too small, and thus the second filling amount is less than the first filling amount. Therefore, the filling time can be adaptively controlled to be increased to the normal filling time, so that the refrigerant amount filled by the filling machine to the outdoor unit of the air conditioner reaches the first filling amount.

[0125] In other scenarios, in the case that there is a deviation between the first filling amount provided by the filling machine to the outdoor unit of the air conditioner and the second filling amount actually filled by the filling machine into the outdoor unit of the air conditioner, the self-checking can be performed on multiple operation parameters of the filling machine, such as checking whether the operation parameters such as the refrigerant temperature, the vacuum degree of the filling machine, the filling time of the filling machine, the filling speed curve of the filling machine, the filling pressure curve of the filling machine, the filling flow of the filling machine, the environmental temperature, etc. are abnormal. Among these parameters, if the filling flow is greater than the normal filling flow, it will cause the speed of the refrigerant amount filled by the filling machine to the outdoor unit of the air conditioner to be too fast, and the refrigerant is sprayed out from the pipe interface of the outdoor unit of the air conditioner. Therefore, the abnormal filling flow can be corrected to the normal filling flow to ensure that the filling machine operates at the normal filling flow, avoid the refrigerant leakage phenomenon caused by the excessive filling flow, on the one hand, reduce the waste of refrigerant, and on the other hand, avoid the phenomenon of insufficient refrigerant amount in the outdoor unit of the air conditioner caused by refrigerant leakage.

[0126] Optionally, referring to Figure 8 As shown in the figure, the embodiment of the present disclosure proposes an automatic calibration model and a parameter optimization model.

[0127] In the case that the preset parameters cannot be obtained, the following scheme is executed by the automatic calibration model: obtaining the first weight and the second weight, and obtaining the second filling amount actually filled by the filling machine to the outdoor unit of the air conditioner according to the first weight and the second weight; and finally, in the case that there is a deviation between the first filling amount provided by the filling machine and the second filling amount actually filled by the filling machine, the first filling amount is adjusted to the third filling amount according to the deviation.

[0128] In the case that the preset parameter can be acquired, the following scheme is executed through the parameter optimization model: in the case that there is a deviation between the first charging amount and the second charging amount, the abnormal operation parameter is corrected to the normal operation parameter to correct the second charging amount to the first charging amount.

[0129] The preset parameter is a configuration parameter built-in by a third party, and the third party can be a manufacturer providing the charging machine, so that the preset parameter can be an operation parameter of the charging machine. If the third party opens the preset parameter, the parameter optimization model is used to acquire the operation parameter of the charging machine itself, and the abnormal operation parameter of the charging machine is corrected to the normal operation parameter, so that the second charging amount actually charged by the charging machine to the air conditioner outdoor unit is corrected to the degree of the first charging amount required by the air conditioner outdoor unit. If the third party does not open the preset parameter, the automatic calibration model is used to increase the charging amount provided by the charging machine to the air conditioner outdoor unit from the first charging amount to the third charging amount, so that even if the refrigerant amount corresponding to the deviation value is leaked on the basis of the third charging amount, the actual refrigerant amount charged to the air conditioner outdoor unit also tends to be close to the first charging amount.

[0130] Please refer to Figure 8 It can be judged whether the configuration parameter is opened by the third party through the intelligent diagnosis model of the charging machine.

[0131] Please refer to Figure 8 Whether the first charging amount is increased to the third charging amount or the second charging amount is corrected to the first charging amount, the refrigerant needs to be charged into the air conditioner outdoor unit by the charging machine, the weight of the refrigerant tank before and after the charging of the air conditioner outdoor unit needs to be detected by weighing, and the performance of the air conditioner outdoor unit needs to be tested by commercial inspection; finally, the data obtained by the weighing detection and the commercial inspection test are transmitted to the abnormal identification model, and the abnormal identification model monitors these data in real time.

[0132] Through the above technical solutions, in the case that there is a deviation between the first charging amount and the second charging amount, the first way can be used to remove the influence of the deviation by controlling the first charging amount to increase to the third charging amount, so that the actual charging amount to the air conditioner outdoor unit reaches the first charging amount; the second way can also be used to correct the abnormal operation parameter of the charging machine to the normal operation parameter, so that the charging machine operates in the normal operation state, thereby correcting the second charging amount to the first charging amount.

[0133] The first way does not need to calculate the operation parameters of the monitoring complex filling machine, so the calculation and processing amount are small, and the first filling amount can be achieved by eliminating the influence of the deviation between the first filling amount and the second filling amount on the basis of simplifying the calculation and processing amount. The second way is more complex in calculation, but it does not additionally increase the first filling amount to the third filling amount, and directly corrects the operation parameters of the filling machine device itself to achieve the purpose of correcting the second filling amount to the first filling amount, thereby reducing the waste of refrigerant. The first way and the second way can be executed simultaneously or separately, and the present disclosure does not limit this.

[0134] Figure 6 The overall framework and step flowchart of the self-checking of the operation parameters of the filling machine involved in the present disclosure include the following steps:

[0135] In step S60, in the case that there is a deviation between the first filling amount provided by the filling machine for the air conditioner outdoor unit and the second filling amount actually filled by the filling machine for the air conditioner outdoor unit, it is determined whether the filling machine has a first type of abnormality.

[0136] The first type of abnormality refers to a diagnostic type of abnormality, which means that the filling machine can correct the abnormality through self-diagnosis.

[0137] It also includes a second type of abnormality, which is a notification type of abnormality, which means that the abnormality cannot be corrected by self-diagnosis of the filling machine and needs to be repaired manually.

[0138] For example, if the operation parameters of the filling machine are abnormal, it is a first type of abnormality, and the second filling amount can be corrected to the first filling amount by reorganizing the abnormal operation parameters; the damage of the parts of the filling machine, which cannot be changed by adjusting the operation parameters to change the phenomenon of part failure, is a second type of abnormality, which needs to be repaired or replaced to correct the second filling amount to the first filling amount.

[0139] Optionally, in the case that the filling machine has a second type of abnormality, a third prompt information is also output, which is used to prompt the part failure of the filling machine and prompt that the filling amount provided by the filling machine for the air conditioner outdoor unit is too small or too large.

[0140] In step S70, in the case that the filling machine has a first type of abnormality, it is determined whether the abnormal operation parameters of the filling machine can be identified.

[0141] In the case that the first type of exception exists in the filling machine, it is indicated that there may be a problem with the operation parameters inside the filling machine. In order to further locate whether the filling machine has an abnormal operation parameter, it can be determined whether an abnormal operation parameter can be identified in the plurality of operation parameters of the filling machine.

[0142] Each of the plurality of operation parameters of the filling machine can be checked, and each operation parameter is compared with the normal operation parameter, so as to locate the abnormal operation parameter in the plurality of operation parameters.

[0143] In step S80, in the case that the abnormal operation parameter of the filling machine can be identified, it is determined whether the deviation value between the abnormal operation parameter and the normal operation parameter of the filling machine is greater than a third preset value.

[0144] In the case that the abnormal operation parameter of the filling machine can be identified, it is indicated that the deviation between the first filling amount and the second filling amount is caused by the abnormal operation parameter of the filling machine, and therefore it can be further determined whether the deviation value between the abnormal operation parameter and the normal operation parameter of the filling machine is less than the third preset value.

[0145] In the case that the abnormal operation parameter of the filling machine can be identified, it is indicated that the deviation between the first filling amount and the second filling amount is caused by the abnormal operation parameter of the filling machine, and therefore it can be further determined whether the deviation value between the abnormal operation parameter and the normal operation parameter of the filling machine is less than the third preset value.

[0146] Optionally, in the case that there is no abnormal operation parameter in the plurality of operation parameters of the filling machine, i.e. in the case that the abnormal operation parameter cannot be identified, it is indicated that the deviation between the first filling amount and the second filling amount is not caused by the operation parameter of the filling machine, and then the first prompt information can be outputted, and the first prompt information is used to prompt that the filling machine fails, but is not caused by the abnormal operation parameter of the filling machine.

[0147] In step S90, in the case that the deviation value between the abnormal operation parameter and the normal operation parameter is less than the third preset value, the abnormal operation parameter is corrected to the normal operation parameter.

[0148] In the case that the deviation value between the abnormal operation parameter and the normal operation parameter is less than the third preset value, it is indicated that the deviation value between the abnormal operation parameter and the normal operation parameter of the filling machine is small, and the deviation value is within a reasonable range. Even if the abnormal operation parameter is corrected to the normal operation parameter, the filling machine operates according to the normal operation parameter, and it will not bring a great impact on the filling machine or the air conditioner outdoor unit, and therefore the filling machine can be allowed to correct the abnormal operation parameter to the normal operation parameter.

[0149] Optionally, the second prompt information is output when the deviation value between the abnormal operation parameter and the normal operation parameter is greater than or equal to a third preset value, and the second prompt information includes the normal operation parameter.

[0150] When the deviation value between the abnormal operation parameter and the normal operation parameter is greater than or equal to the third preset value, it indicates that the deviation value between the abnormal operation parameter and the normal operation parameter of the filling machine is large, and the deviation value is not within a reasonable range. The abnormal operation parameter is corrected to the normal operation parameter. After the filling machine operates according to the normal operation parameter with a large change, it may have a large impact on the filling machine or the outdoor unit of the air conditioner, thereby greatly changing the amount of refrigerant filled into the outdoor unit of the air conditioner. Therefore, the second prompt information can be output to display the recommended normal operation parameter to the worker, and the worker can artificially judge whether to control the filling machine to operate according to the normal operation parameter with a large change.

[0151] For example, taking the filling flow as the operation parameter, when the difference between the current abnormal filling flow of the filling machine and the normal operation flow is 100 g / sec, it indicates that the deviation between the abnormal filling flow and the normal filling flow is large. At this time, if the abnormal filling flow is increased to the normal filling flow, the filling speed of the filling machine to the outdoor unit of the air conditioner will be greatly increased. If the normal filling flow is inaccurate data, the refrigerant at the interface of the outdoor unit of the air conditioner will be leaked in a large area. Therefore, the second prompt information can be output, and the normal operation flow is recommended in the second prompt information, so that the worker can judge again whether the normal operation flow is reasonable data.

[0152] Please refer to Figure 9 As shown in the figure, the refrigerant filling method applied to the architecture diagram includes an application process architecture, a model data layer, and an assembly layer.

[0153] The application process architecture includes an interaction flowchart of an abnormality identification model, an abnormality diagnosis model, a parameter optimization model, and a self-calibration model.

[0154] The abnormality identification model is used to identify whether the filling machine has a first type of abnormality or a second type of abnormality. When the filling machine has the first type of abnormality, the first type of abnormality is sent to the abnormality diagnosis model. When the filling machine has the second type of abnormality, a third prompt information is output to indicate that the filling machine has a component failure.

[0155] The abnormality diagnosis model responds to the first type of abnormality to determine whether the abnormal operation parameter of the filling machine can be identified. When the abnormal operation parameter of the filling machine can be identified, the abnormal operation parameter of the filling machine is sent to the parameter optimization model. When the abnormal operation parameter of the filling machine cannot be identified, a first prompt information is output to indicate that the filling machine has a failure and is not caused by an abnormal operation parameter.

[0156] The parameter optimization model determines whether a deviation value between the abnormal operation parameter and the normal operation parameter is less than a third preset value based on the abnormal operation parameter, and corrects the abnormal operation parameter to the normal operation parameter in a case where the deviation value is less than the third preset value, and outputs a second prompt information indicating the normal operation parameter in a case where the deviation value is greater than or equal to the third preset value.

[0157] The self-calibration model is used to issue the second filling amount of the filling machine to the filling machine after the abnormal diagnosis model identifies the abnormal operation parameter of the filling machine, so as to subsequently correct the second filling amount to the first filling amount.

[0158] It can be understood that after the staff receives the first prompt information, the second prompt information and the third prompt information, the operation parameter of the filling machine will be modified or the filling machine will be repaired, and the second filling amount can also be adjusted to the first filling amount when the filling machine is normally operated.

[0159] The model data layer includes an abnormal identification model, a correlation analysis model, an abnormal diagnosis model, a quality prediction model and a parameter optimization model.

[0160] The abnormal identification model can be used to obtain an identification code of the air conditioner outdoor unit in addition to identifying the abnormal type of the filling machine, and monitor and obtain the first filling amount required by the air conditioner outdoor unit corresponding to the identification code, the operation parameter of the filling machine itself, etc. The abnormal identification model includes a CPK monitoring and early warning module, a factor monitoring module and an abnormal detection module. The monitoring and early warning module is used to monitor the performance of the filling machine, the factor monitoring module is used to monitor the operation parameter of the filling machine, and the abnormal detection is used to detect whether the abnormal type of the filling machine is the first type or the second type.

[0161] The correlation analysis model is used to compare and analyze the inspection data of multiple air conditioner outdoor units, analyze the air conditioner outdoor units with poor performance, and also can be used to analyze the operation parameters of multiple filling machines, or analyze the correlation between the operation parameters of the filling machine and the historical operation parameters, so as to determine whether the operation parameter of the filling machine is an abnormal operation parameter. For example, the correlation analysis model can analyze the correlation between the current filling speed curve of the filling machine and the normal filling speed curve, so as to determine whether the current filling speed curve of the filling machine is abnormal. The quality prediction model is used to compare the operation parameter of the air conditioner outdoor unit with the normal operation parameter, so as to determine whether the quality of the air conditioner exists a problem. The correlation analysis model includes a causal inference module, a clustering analysis module and a variance analysis module. These three modules are used to analyze the correlation between the operation parameter of the filling machine and the normal operation parameter.

[0162] The abnormality diagnosis model is used to determine whether an abnormal operation parameter can be determined from a plurality of operation parameters. The abnormality diagnosis model includes a knowledge graph module, a Markov decision module, and a rule engine module. The three modules are combined to analyze whether the operation parameter is an abnormal operation parameter.

[0163] The quality prediction model is used to predict the quality of the air conditioner outdoor unit and the charging machine. The quality prediction model includes a machine learning module, a deep learning module, and a transfer learning module. The three modules are combined to establish a mapping relationship between the air conditioner outdoor unit and the air conditioner quality, and a mapping relationship between the charging machine and the charging machine quality.

[0164] The parameter optimization model is used to correct the abnormal operation parameter to a normal operation parameter. The parameter optimization model includes an evolutionary algorithm module, a heuristic optimization module, and a reinforcement learning module. The three modules are combined to correct the abnormal operation parameter to a normal operation parameter.

[0165] The equipment layer includes commercial inspection and charging machines. The charging machine is a device for charging refrigerant into the air conditioner outdoor unit, and the commercial inspection is used to detect the performance of the air conditioner outdoor unit.

[0166] Through the above technical solutions, in a first aspect, when the abnormal type of the charging machine is the first type, and the abnormal operation parameter in the plurality of operation parameters of the charging machine can be identified, and the deviation value between the abnormal operation parameter and the normal operation parameter is less than a third preset value, the abnormal operation parameter is corrected to a normal operation parameter. It can also be understood that, in the case where it is determined that the charging machine can determine the abnormal operation parameter and the charging machine modifies the abnormal operation parameter to the normal operation parameter without causing a significant impact on the charging process, the charging machine automatically modifies the abnormal operation parameter to the normal operation parameter. After the operation parameter of the charging machine becomes the normal operation parameter, the charging machine charges the refrigerant into the air conditioner outdoor unit with the normal operation parameter, avoiding situations such as refrigerant leakage and insufficient refrigerant in the air conditioner outdoor unit. In a second aspect, when the deviation value between the abnormal operation parameter and the normal operation parameter is greater than or equal to the third preset value, the normal operation parameter is displayed to the staff, and it is determined by the staff whether to modify the abnormal operation parameter to the normal operation parameter, avoiding a large decrease or increase in the amount of refrigerant caused by the charging machine running with a normal operation parameter with a large deviation.

[0167] Figure 10 is a block diagram of a refrigerant charging device according to an exemplary embodiment. Referring to Figure 10 The refrigerant charging device 1000 includes a first acquisition module 1010, a second acquisition module 1020, and an adjustment module 1030.

[0168] The first acquisition module 1010 is configured to acquire a first charging amount, which is the refrigerant charging amount provided by the charging machine to the air conditioner outdoor unit.

[0169] The second obtaining module 1020 is configured to obtain a second charging amount, which is an actual refrigerant charging amount filled into the outdoor unit of the air conditioner by the charging machine;

[0170] The adjusting module 1030 is configured to, in the case that there is a deviation between the first charging amount and the second charging amount, adjust the first charging amount to a third charging amount according to the deviation; and a deviation value between the first charging amount and the third charging amount is equal to a deviation value between the first charging amount and the second charging amount.

[0171] Optionally, the adjusting module 1030 comprises:

[0172] The deviation value determining submodule is configured to, in the case that there is a deviation between the first charging amount and the second charging amount, determine a deviation value between the first charging amount and the second charging amount.

[0173] The superposition submodule is configured to obtain the third charging amount according to the first charging amount and the deviation value.

[0174] The adjusting submodule is configured to adjust the first charging amount to the third charging amount.

[0175] Optionally, the refrigerant charging device 1000 further comprises:

[0176] The correcting module is configured to, in the case that there is a deviation between the first charging amount and the second charging amount, correct the second charging amount to the first charging amount.

[0177] Optionally, the correcting module comprises:

[0178] The abnormal operating parameter submodule is configured to, in the case that there is a deviation between the first charging amount and the second charging amount, determine an abnormal operating parameter of the charging machine.

[0179] The correcting submodule is configured to correct the abnormal operating parameter to a normal operating parameter, so as to correct the second charging amount to the first charging amount.

[0180] Optionally, the refrigerant charging device 1000 further comprises:

[0181] The normal operating parameter module is configured to take a historical operating parameter of the charging machine as the normal operating parameter, or take an operating parameter of a target charging machine of the same type as the charging machine as the normal operating parameter.

[0182] Optionally, the abnormal operation parameter submodule is further configured to: take the operation parameter of the charging machine as the abnormal operation parameter when a deviation value between the operation parameter of the charging machine and a historical operation parameter of the charging machine is greater than a first preset value; or take the operation parameter of the charging machine as the abnormal operation parameter when a deviation value between the operation parameter of the charging machine and an operation parameter of a target charging machine is greater than a second preset value, the target charging machine being a charging machine of the same type as the charging machine.

[0183] Optionally, the refrigerant charging device 1000 further comprises:

[0184] The first prompt module is configured to output first prompt information when there is a deviation between the first charging amount and the second charging amount and the abnormal operation parameter of the charging machine cannot be identified; and the abnormal prompt information is used to prompt a fault of the charging machine.

[0185] Optionally, the correction submodule is further configured to correct the abnormal operation parameter to the normal operation parameter when a deviation value between the abnormal operation parameter and the normal operation parameter is less than a third preset value.

[0186] Optionally, the refrigerant charging device 1000 further comprises:

[0187] The second prompt module is configured to output second prompt information when a deviation value between the abnormal operation parameter and the normal operation parameter is greater than or equal to a third preset value; and the second prompt information comprises the normal operation parameter.

[0188] Optionally, the abnormal operation parameter of the charging machine comprises at least one of:

[0189] A refrigerant temperature, a vacuum degree of the charging machine, a charging time length of the charging machine, a charging speed curve of the charging machine, a charging pressure curve of the charging machine, a charging flow of the charging machine, and an ambient temperature.

[0190] Optionally, the refrigerant charging device 1000 further comprises:

[0191] The weight acquisition module is configured to acquire a first weight before the air conditioner outdoor unit is charged with the first charging amount and a second weight after the air conditioner outdoor unit is charged with the first charging amount.

[0192] The weight calculation module is configured to obtain the second charging amount according to the first weight and the second weight.

[0193] Optionally, the weight acquisition module is further configured to acquire the first weight and the second weight through an automatic calibration model when preset parameters cannot be acquired.

[0194] As to the apparatus in the above embodiments, the specific manners in which the respective modules perform operations have been described in detail in the embodiments of the method, and thus will not be described in detail here.

[0195] The present disclosure also provides a computer readable storage medium, having stored thereon computer program instructions, which when executed by a processor, implement the steps of the refrigerant charging method provided by the present disclosure.

[0196] Figure 11 is a block diagram of a refrigerant charging apparatus 1100 according to an exemplary embodiment. For example, the apparatus 1100 can be a charging machine, which is configured with a charging gun for charging refrigerant in the charging machine into an air conditioner outdoor unit, and a sensor for detecting whether the charging machine has refrigerant delivered into the air conditioner outdoor unit.

[0197] Referring to Figure 11 , the apparatus 1100 can include one or more of the following components: a processing component 1102, a memory 1104, a power supply component 1106, a multimedia component 1108, an audio component 1110, an input / output (I / O) interface 1112, a sensor component 1114, and a communication component 1116.

[0198] The processing component 1102 usually controls overall operations of the apparatus 1100, such as operations associated with displaying, making phone calls, data communications, camera operations and recording operations. The processing component 1102 can include one or more processors 1120 to execute instructions to complete all or part of the steps of the refrigerant charging method described above. Further, the processing component 1102 can include one or more modules to facilitate the interaction between the processing component 1102 and other components. For example, the processing component 1102 can include a multimedia module to facilitate the interaction between the multimedia component 1108 and the processing component 1102.

[0199] The memory 1104 is configured to store various types of data to support operations of the apparatus 1100. Examples of these data include instructions for any application or method operating on the apparatus 1100, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1104 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0200] Power component 1106 provides power to the various components of device 1100. Power component 1106 can include a power supply management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 1100.

[0201] Multimedia component 1108 includes a screen providing an output interface between device 1100 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, swiping, and gestures on the touch panel. The touch sensors can not only sense a boundary of a touching or swiping action, but also detect duration and pressure related to the touching or swiping action. In some embodiments, multimedia component 1108 includes a front camera and / or a rear camera. When device 1100 is in an operation mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have a focal length and optical zoom capability.

[0202] Audio component 1110 is configured to output and / or input audio signals. For example, audio component 1110 includes a microphone (MIC) that is configured to receive external audio signals when device 1100 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in memory 1104 or transmitted via communication component 1116. In some embodiments, audio component 1110 also includes a speaker for outputting audio signals.

[0203] Input / output interface 1112 provides an interface between processing component 1102 and peripheral interface modules, which can be a keyboard, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0204] The sensor component 1114 includes one or more sensors for providing status assessments for various aspects of the device 1100. For example, the sensor component 1114 can detect an open / closed position of the device 1100, relative positioning of components of the device 1100, such as a display and a keypad of the device 1100, a change in position of the device 1100 or a component of the device 1100, presence or absence of user contact with the device 1100, orientation or acceleration / deceleration of the device 1100, and temperature changes of the device 1100. The sensor component 1114 can include proximity sensor(s) configured to detect presence of nearby objects without any physical contact. The sensor component 1114 can further include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 1114 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0205] The communication component 1116 is configured to facilitate wired or wireless communication between the device 1100 and another device. The device 1100 can access a wireless network based on a corresponding communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1116 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1116 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra-WideBand (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0206] In an exemplary embodiment, the device 1100 can be implemented with one or more Application-Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, or other electronic units to perform the above-described method for charging a refrigerant.

[0207] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as the memory 1104 including instructions, is also provided, which can be executed by the processor 1120 of the device 1100 to perform the above-described method for charging a refrigerant. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0208] In another exemplary embodiment, a computer program product is also provided, which includes a computer program capable of being executed by a programmable device, and the computer program has code portions for executing the above-described refrigerant charging method when executed by the programmable device.

[0209] Figure 12 is a block diagram of a refrigerant charging device 1200 according to an exemplary embodiment. For example, the device 1200 can be provided as a server. Referring to Figure 12 , the device 1200 includes a processing component 1222, which further includes one or more processors, and memory resources represented by a memory 1232 for storing instructions, such as application programs, executable by the processing component 1222. The application programs stored in the memory 1232 can include one or more than one module each corresponding to a set of instructions. In addition, the processing component 1222 is configured to execute the instructions to perform the above-described refrigerant charging method.

[0210] The device 1200 can also include a power supply component 1226 configured to perform power management of the device 1200, a wired or wireless network interface 1250 configured to connect the device 1200 to a network, and an input / output interface 1258. The device 1200 can operate based on an operating system stored in the memory 1232.

[0211] Some embodiments of the present disclosure also provide a chip system, as shown in Figure 13 which includes at least one processor 1301 and at least one interface circuit 1302. The processor 1301 and the interface circuit 1302 can be interconnected by a line. For example, the interface circuit 1302 can be used to receive signals from other devices (such as the memory of an electronic device). For another example, the interface circuit 1302 can be used to send signals to other devices (such as the processor 1301). Illustratively, the interface circuit 1302 can read instructions stored in the memory and send the instructions to the processor 1301. When the instructions are executed by the processor 1301, the refrigerant charging device can be caused to perform various steps in the above-described embodiments. Of course, the chip system can also include other discrete devices, which are not specifically limited in some embodiments of the present disclosure.

[0212] In some embodiments of the present disclosure, the interface circuit 1302 can obtain data, program instructions and / or information, etc. in an internal storage area of the chip system; it can also obtain data, program instructions and / or information, etc. outside the chip system.

[0213] Those skilled in the art can understand that various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether the functions are implemented by hardware or software depends on the specific application and design requirements of the whole system. Those skilled in the art can implement the functions described in various ways for each specific application, but such implementation should not be construed as beyond the scope of the embodiments of the present application.

Claims

1. A refrigerant charging method characterized by comprising: The method comprises: obtaining a first charge amount, the first charge amount being a refrigerant charge amount provided by a charging machine to an outdoor unit of an air conditioner, different types of the outdoor unit having different first charge amounts; obtaining a second charge amount, the second charge amount being an actual refrigerant charge amount charged by the charging machine into the outdoor unit of the air conditioner; in a case where there is a deviation between the first charge amount and the second charge amount, adjusting the first charge amount to a third charge amount according to the deviation, the deviation value between the third charge amount and the first charge amount being equal to the deviation value between the first charge amount and the second charge amount, the third charge amount being greater than the first charge amount, and the first charge amount being greater than the second charge amount.

2. The method of claim 1, wherein, The method further comprises: in a case where there is a deviation between the first charge amount and the second charge amount, correcting the second charge amount to the first charge amount. The method further comprises: in a case where there is a deviation between the first charge amount and the second charge amount, determining an abnormal operating parameter of the charging machine; 3. The method of claim 1, wherein, correcting the abnormal operating parameter to a normal operating parameter to correct the second charge amount to the first charge amount. The method further comprises:

4. The method of claim 3, wherein, using a historical operating parameter of the charging machine as the normal operating parameter; or using an operating parameter of a target charging machine of the same type as the charging machine as the normal operating parameter. The method further comprises:

5. The method of claim 4, wherein, in a case where a deviation value between the operating parameter of the charging machine and the historical operating parameter of the charging machine is greater than a first preset value, using the operating parameter of the charging machine as the abnormal operating parameter; or in a case where a deviation value between the operating parameter of the charging machine and an operating parameter of a target charging machine is greater than a second preset value, using the operating parameter of the charging machine as the abnormal operating parameter, the target charging machine being a charging machine of the same type as the charging machine. The method further comprises:

6. The method of claim 4, wherein, in a case where there is a deviation between the first charge amount and the second charge amount and the abnormal operating parameter of the charging machine cannot be identified, outputting a first prompt information; the first prompt information being used to prompt a fault of the charging machine. The method further comprises: in a case where a deviation value between the abnormal operating parameter and the normal operating parameter is less than a third preset value, correcting the abnormal operating parameter to the normal operating parameter.

7. The method of claim 4, wherein, The method further comprises: ​ 8. The method of claim 4, wherein, ​ ​ 9. The method of claim 4, wherein, ​ In a case where a deviation value between the abnormal operation parameter and the normal operation parameter is greater than or equal to a third preset value, a second prompt information is output; the second prompt information includes the normal operation parameter.

10. The method of any one of claims 4-9, wherein, The abnormal operation parameter of the charging machine includes at least one of: Refrigerant temperature, vacuum degree of the charging machine, charging duration of the charging machine, charging speed curve of the charging machine, charging pressure curve of the charging machine, charging flow of the charging machine, and ambient temperature.

11. The method of claim 1, wherein, The method further includes: Obtaining a first weight before the air conditioner outdoor unit is charged with the first charging amount and a second weight after the air conditioner outdoor unit is charged with the first charging amount; Obtaining the second charging amount according to the first weight and the second weight.

12. The method of claim 11, wherein, The method further includes: In a case where the preset parameter cannot be obtained, the first weight and the second weight are obtained through an automatic calibration model.

13. A refrigerant charging device characterized by comprising: The method includes: A first obtaining module configured to obtain a first charging amount, the first charging amount being a refrigerant charging amount provided by a charging machine to an air conditioner outdoor unit, different types of the air conditioner outdoor unit having different first charging amounts; A second obtaining module configured to obtain a second charging amount, the second charging amount being an actual refrigerant charging amount charged by the charging machine into the air conditioner outdoor unit; An adjusting module configured to, in a case where there is a deviation between the first charging amount and the second charging amount, adjust the first charging amount to a third charging amount according to the deviation; a deviation value between the third charging amount and the first charging amount being equal to a deviation value between the first charging amount and the second charging amount, the third charging amount being greater than the first charging amount, and the first charging amount being greater than the second charging amount.

14. A refrigerant charging device characterized by comprising: The method includes: A processor; A memory for storing processor-executable instructions; The processor is configured to: Perform the steps of the method of any one of claims 1-12.

15. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1-12.

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