Fault positioning method and fault positioning device of air conditioning system and air conditioning system

Abstract

The invention relates to the technical field of air conditioning systems, and provides a fault positioning method and a fault positioning device of an air conditioning system and the air conditioning system.The fault positioning method of the air conditioning system comprises the steps of obtaining operation parameter information of a plurality of module units, the operation state of each module unit is determined according to the operation parameter information and pre-stored standard parameter information; wherein the operation state comprises a fault state and a normal state; and controlling a display assembly to display the unit number and the operation parameter of the module unit in the fault state. When the air conditioning system runs, the running state of the module unit is determined according to the running parameter information and the standard parameter information, and the unit number and the running parameter of the faulted unit are displayed through the display assembly when the module unit fails, so that maintenance personnel can quickly position the unit in the faulted state; and the fault type is determined according to the displayed operation parameters, so that the maintenance efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning systems, and in particular to a fault locating method and a fault locating device for an air conditioning system, and an air conditioning system. Background Art

[0002] At present, air conditioning systems consisting of multiple module units are often used for cooling or heating in large building areas. The module unit is a water-cooling unit with a smaller single-unit capacity than the screw unit and the centrifugal unit. In order to meet high load demands, multiple module units are often required to be interconnected and operated. When a single unit fails, it will affect the load supply of the entire air conditioning system, thereby affecting the user experience. In related technologies, when an air conditioning system fails, maintenance personnel can only judge the type of failure and the cause of the failure based on experience, and need to identify the faulty unit by checking one by one, which results in low maintenance efficiency. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention proposes a fault location method for an air conditioning system, which can determine the operating status of a module unit according to operating parameter information and standard parameter information, and display the unit number and operating parameters of the faulty unit through a display component when the module unit fails, which helps maintenance personnel to quickly locate the unit in a faulty state, and determine the fault type according to the displayed operating parameters, thereby improving maintenance efficiency.

[0004] The invention also provides a fault locating device for an air conditioning system.

[0005] The invention also provides an air conditioning system.

[0006] According to a first aspect of the present invention, an air conditioning system fault location method is provided, wherein the air conditioning system includes a plurality of module units, and the fault location method includes:

[0007] Acquire operation parameter information of a plurality of module units, and determine the operation status of each module unit according to the operation parameter information and pre-stored standard parameter information; wherein the operation status includes a fault state and a normal state;

[0008] The control display component displays the unit number and operating parameters of the module unit in the fault state.

[0009] According to an embodiment of the present invention, the step of determining the operating state of each module unit according to the operating parameter information and the pre-stored standard parameter information further includes:

[0010] The unit number and operating parameters of the module unit in the fault state are sent to the cloud server.

[0011] According to an embodiment of the present invention, the step of determining the operating state of each module unit according to the operating parameter information and the pre-stored standard parameter information further includes:

[0012] Determine the parameter deviation value between the operating parameter of the module unit in the fault state and the standard parameter, and control the display component to display the parameter deviation value and control the display mode of the display component.

[0013] According to an embodiment of the present invention, the step of controlling the display component to display the parameter deviation value and controlling the display mode of the display component specifically includes:

[0014] When the ratio of the parameter deviation value to the standard parameter is less than or equal to a preset ratio, controlling the display component to display the parameter deviation value in an early warning mode;

[0015] When the ratio of the parameter deviation value to the standard parameter is greater than the preset ratio, the display component is controlled to display the parameter deviation value in a danger mode.

[0016] According to an embodiment of the present invention, the step of determining the operating state of each module unit according to the operating parameter information and the pre-stored standard parameter information further includes:

[0017] Determining a predicted fault type of the module unit in a fault state according to the operating parameter information, the standard parameter information and a predetermined fault type prediction relationship;

[0018] The display component is controlled to display the predicted fault type of the module group.

[0019] According to one embodiment of the present invention, the step of determining the predicted fault type of the module unit in a fault state according to the operating parameter information, the standard parameter information and a predetermined fault type prediction relationship further includes:

[0020] Obtain the actual fault type input by maintenance personnel;

[0021] The operating parameters, the standard parameters, the predicted fault type, and the actual fault type are sent to a fault type prediction model of a cloud server, and the fault type prediction relationship is updated according to the fault type prediction model.

[0022] According to one embodiment of the present invention, the step of determining the predicted fault type of the module unit in a fault state according to the operating parameter information, the standard parameter information and a predetermined fault type prediction relationship further includes:

[0023] An emergency measure is determined according to the fault type and a predetermined correspondence relationship between emergency measures, and the air conditioning system is controlled to execute the emergency measure.

[0024] According to one embodiment of the present invention, the step of obtaining the operating parameter information of the plurality of module units further comprises:

[0025] All of the operating parameters are sent to the cloud server, and an instruction is issued to generate a chart showing the trend of operating parameter changes.

[0026] According to a second aspect of the present invention, a fault location device for an air conditioning system is provided, comprising:

[0027] An acquisition module, used to acquire operating parameter information of a plurality of module units, and determine the operating state of each module unit according to the operating parameter information and pre-stored standard parameter information; wherein the operating state includes a fault state and a normal state;

[0028] The control module is used to control the display component to display the unit number and operating parameters of the module unit in the fault state.

[0029] An air conditioning system provided according to an embodiment of the third aspect of the present invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the fault location method for the air conditioning system provided according to the embodiment of the first aspect of the present invention are implemented.

[0030] The above one or more technical solutions in the present invention have at least one of the following technical effects:

[0031] According to an embodiment of the present invention, a fault location method for an air conditioning system includes: obtaining operating parameter information of a plurality of module units, and determining the operating status of each module unit according to the operating parameter information and pre-stored standard parameter information; wherein the operating status includes a fault state and a normal state; and controlling the display component to display the unit number and operating parameters of the module unit in the fault state. When the air conditioning system is in operation, the operating status of the module unit is determined according to the operating parameter information and the standard parameter information, and when the module unit fails, the unit number and operating parameters of the failed unit are displayed through the display component, which helps maintenance personnel to quickly locate the unit in the fault state, and determine the fault type according to the displayed operating parameters, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 One of the flow charts of the fault location method of the air conditioning system provided by the embodiment of the present invention;

[0034] Figure 2 A second flowchart of a method for locating a fault in an air conditioning system provided by an embodiment of the present invention;

[0035] Figure 3 A schematic structural diagram of a fault location device for an air conditioning system provided by an embodiment of the present invention;

[0036] Figure 4 A schematic structural diagram of an air conditioning system provided in an embodiment of the present invention.

[0037] Reference numerals:

[0038] 301, acquisition module; 302, control module. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the invention clearer, the technical solution in the invention will be clearly described below in conjunction with the drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0040] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0042] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] In the related art, when an air-conditioning system fails, only the fault name can be determined, and after-sales personnel can only judge the cause of the failure based on experience. It is necessary to identify the faulty unit by checking one by one, and the maintenance efficiency is low.

[0045] The air conditioning system involved in the embodiment of the present invention includes a plurality of module units, which are connected in parallel. In order to ensure the normal operation of each module unit, each module unit is provided with a sensor for detecting the operating parameters such as the unit operating pressure, ambient temperature, operating temperature, ambient humidity, etc. In addition, the operating parameters also include compressor frequency, fan frequency, and the number of steps of the electronic expansion valve, etc. When the module unit is in a normal state, under certain environmental conditions, its operating parameters are predictable, which can be a specific value or a range that fluctuates within a small range. The operating parameter information of the module unit in the normal state is determined as the standard parameter information.

[0046] According to the first aspect of the present invention, the fault location method of the air conditioning system is provided. Figure 1 ,include:

[0047] S100, obtaining operation parameter information of a plurality of module units, and determining the operation status of each module unit according to the operation parameter information and pre-stored standard parameter information; wherein the operation status includes a fault status and a normal status.

[0048] It is understandable that during the operation of the air-conditioning system, when the operation mode of the air-conditioning system is determined, multiple module units are operated according to preset instructions. During this process, different sensors can be used to detect the operating parameters such as the unit operating pressure, ambient temperature, operating temperature, ambient humidity, etc. At the same time, the operating parameter information such as the compressor frequency, fan frequency and electronic expansion valve step number that the controller is executing can also be directly read. When the air-conditioning system is in a normal state, when the ambient temperature, ambient humidity and operating load are determined, the operating parameter information of the module unit is determined. This part of the operating parameters can be determined during the operation of the air-conditioning system, or it can be determined in the laboratory, and this part of the operating parameters is determined as standard parameter information. During the operation of the air-conditioning system, the operating parameter information of each module unit is compared with the standard parameter information. When there is a deviation between some or all of the operating parameters and the standard parameters, and the deviation meets the preset conditions, it is confirmed that the corresponding module unit has a fault, and the operating state of the module unit is a fault state; when the operating parameters of the module unit are consistent with the standard parameters or fluctuate slightly near the standard parameters, the operating state of the module unit is a normal state.

[0049] S110, controlling the display component to display the unit number and operating parameters of the module unit in a fault state.

[0050] It is understandable that, in order to facilitate the control of the module units, each module unit is set with a unit number. When it is determined that the operating state of a module unit is a fault state, the unit number corresponding to the module unit is displayed through the display component, and the operating parameters of the module unit are displayed synchronously. Maintenance personnel can promptly determine the module unit with a fault through the display component, and promptly analyze the fault type of the module unit according to the displayed operating parameters, which is conducive to improving maintenance efficiency and helping to maintain the stable operation of the air-conditioning system.

[0051] In some embodiments, the step of determining the operating state of each module unit according to the operating parameter information and the pre-stored standard parameter information further includes:

[0052] S120, sending the unit number and operating parameters of the module unit in a faulty state to the cloud server.

[0053] It can be understood that a communication module is provided in the air-conditioning system, and the communication module signal is connected to the cloud server. Maintenance personnel can read the operating parameter information in the cloud server through the terminal, and can remotely analyze the fault types of the air-conditioning system and module units, which helps to reduce the pressure of on-site staff and improve the efficiency of fault repair.

[0054] In some embodiments, the step of determining the operating state of each module unit according to the operating parameter information and the pre-stored standard parameter information further includes:

[0055] S130, determining a parameter deviation value between an operating parameter of a module unit in a fault state and a standard parameter, and controlling a display component to display the parameter deviation value and a display mode of the display component.

[0056] It is understandable that the operating parameter information of each module unit is compared with the predetermined standard parameter information. When there is a deviation between some or all of the operating parameters and the standard parameters, and the deviation meets the preset conditions, it is confirmed that the corresponding module unit has a fault, and the operating state of the module unit is a fault state. At the same time, the parameter deviation value between the operating parameters and the standard parameters can also be displayed, so that maintenance personnel can understand the fault type and severity of the module unit in the fault state through the parameter deviation value. At the same time, the display mode of the display component can be controlled according to the parameter deviation value. According to the severity of the fault, the display mode of the display component is different to attract different attention from the maintenance personnel, so that when a serious fault occurs, it can be repaired or shut down as soon as possible, reducing the damage to the air conditioning system.

[0057] In some embodiments, the steps of controlling the display component to display the parameter deviation value and controlling the display mode of the display component specifically include:

[0058] S131. When the ratio of the parameter deviation value to the standard parameter is less than or equal to a preset ratio, the display component is controlled to display the parameter deviation value in a warning mode.

[0059] S132. When the ratio of the parameter deviation value to the standard parameter is greater than a preset ratio, the display component is controlled to display the parameter deviation value in a danger mode.

[0060] It is understandable that when the parameter deviation value is different, the degree of failure of the unit is also different, the danger to the module unit or the air-conditioning system is also different, and the interference ability to the performance of the air-conditioning system is also different. Therefore, when the parameter deviation value is different, it is displayed in different modes as much as possible. In an embodiment of the present invention, the degree of failure of the module unit is determined by the ratio of the parameter deviation value to the standard parameter. When the ratio of the parameter deviation value to the standard parameter is less than or equal to the preset ratio, there is a certain risk in the module unit and it needs to be repaired and adjusted as soon as possible. At this time, the control display component displays the parameter deviation value in an early warning mode, such as displaying a yellow background color; when the ratio of the parameter deviation value to the standard parameter is greater than the preset ratio, the degree of danger of the module unit is high, which may cause damage to the compressor, refrigerant pipeline and other structures. At this time, the control display component displays the parameter deviation value in a dangerous mode, such as displaying a red background color, a red flashing light and a danger sign.

[0061] In some embodiments, the step of determining the operating state of each module unit according to the operating parameter information and the pre-stored standard parameter information further includes:

[0062] S140, determining the predicted fault type of the module unit in a fault state according to the operating parameter information, the standard parameter information and a predetermined fault type prediction relationship.

[0063] See also Figure 2 The operating parameters of the module unit include the unit operating pressure, ambient temperature, operating temperature, ambient humidity, compressor frequency, fan frequency, and electronic expansion valve step number. When a certain type of fault occurs, the operating parameters of the module unit have certain characteristics, such as a large unit operating pressure and a high compressor frequency. When the operating parameters are abnormal, the fault type of the module unit in the fault state can be determined based on the operating parameter information, standard parameter information, and the fault type prediction relationship. The fault type determined at this time is the predicted fault type. The predicted fault type may be one or more, which can assist maintenance personnel in quickly determining the fault of the module unit and help shorten the maintenance time. At the same time, based on the predicted fault type, maintenance personnel can prepare replacement parts in advance, which is more efficient.

[0064] S150, controlling the display component to display the predicted fault type of the module unit.

[0065] After the fault type of the module unit is predicted, the predicted fault type of the module unit can be displayed through the display component, which is convenient for maintenance personnel or inspection personnel to find it in time.

[0066] In some embodiments, the step of determining the predicted fault type of the module unit in a fault state according to the operating parameter information, the standard parameter information and the predetermined fault type prediction relationship further includes:

[0067] S160: Obtain the actual fault type input by the maintenance personnel.

[0068] In step S160, maintenance personnel may determine the actual fault type of the module unit based on the operating parameters of the module unit and the conditions on site, wherein the actual fault type and the predicted fault type may be the same or different.

[0069] S170, sending the operating parameters, standard parameters, predicted fault types, and actual fault types to the fault type prediction model of the cloud server, and updating the fault type prediction relationship according to the fault type prediction model.

[0070] It can be understood that when the actual fault type and the predicted fault type are the same, the accuracy of the fault type prediction model is further confirmed and the credibility of the fault type prediction model is increased; when the actual fault type and the predicted fault type are different, the corresponding relationship between the operating parameters, standard parameters and the fault type prediction model is corrected in time, and the fault type prediction relationship is updated in time according to the fault type prediction model, which helps to improve the accuracy of subsequent fault type predictions.

[0071] In some embodiments, the step of determining the predicted fault type of the module unit in a fault state according to the operating parameter information, the standard parameter information and the predetermined fault type prediction relationship further includes:

[0072] S200: Determine emergency measures according to the fault type and the predetermined emergency measures correspondence, and control the air conditioning system to execute the emergency measures.

[0073] In step S200, different fault types have different effects on the air conditioning system. For example, some fault types may reduce the performance of the air conditioning system, while other fault types may cause damage to the compressor or pipeline. Different emergency measures need to be taken for different fault types. In the embodiment of the present invention, when a module unit fails, emergency measures are determined according to the fault type and the predetermined emergency measure correspondence, and the air conditioning system is controlled to execute the emergency measures, so as to reduce the damage to the air conditioning system.

[0074] In some embodiments, the step of obtaining the operating parameter information of the plurality of module units further comprises:

[0075] All operating parameters are sent to the cloud server, and an instruction is issued to generate a chart showing the trend of operating parameter changes.

[0076] It is understandable that after obtaining the operating parameter information of multiple module units, all operating parameters can be sent to the cloud server, and a command to generate an operating parameter change trend chart can be issued. Maintenance personnel can understand the operating status of the module unit in the past period of time based on the operating parameter change trend chart drawn by the cloud server, and then determine the cause of the module unit failure. For some delayed failures, the source of the failure can be better analyzed.

[0077] According to the second aspect of the present invention, the fault location device of the air conditioning system is provided. Figure 3 ,include:

[0078] The acquisition module 301 is used to acquire the operating parameter information of multiple module units, and determine the operating status of each module unit according to the operating parameter information and pre-stored standard parameter information; wherein the operating status includes a fault state and a normal state.

[0079] The control module 302 is used to control the display component to display the unit number and operating parameters of the module unit in a fault state.

[0080] It should be noted that the above steps S100 to S110, and other steps are only for the convenience of expression, and do not constitute a time sequence limitation for each step in the fault location method of the air-conditioning system. In addition, some contents are described in detail in the fault location method of the air-conditioning system provided in the first aspect embodiment, and the contents in the fault location method of all air-conditioning systems are also applicable to the fault location device of the air-conditioning system provided in the second aspect embodiment, and in order to avoid repetition, the fault location device of the air-conditioning system provided in the second aspect embodiment is not described in detail. Similarly, the contents in the above two aspects of the embodiments can be used to explain the contents of all the subsequent aspects of the embodiments, so the repeated contents will not be repeated in the subsequent embodiments. The technical effect of the fault location device for the air-conditioning system provided in the embodiment of the present invention corresponds to the technical effect of the above-mentioned fault location method for the air-conditioning system, and will not be repeated here.

[0081] An air conditioning system provided according to an embodiment of the third aspect of the present invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the fault location method for the air conditioning system provided according to the embodiment of the first aspect of the present invention are implemented.

[0082] Figure 4The physical structure diagram of an electronic device of an air conditioning system is illustrated, and the electronic device may include: a processor 810, a communication interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication interface 820 and the memory 830 communicate with each other through the communication bus 840. The processor 810 may call the logic instructions in the memory 830 to execute a fault location method of the air conditioning system, and the method includes: obtaining the operation parameter information of a plurality of module units, and determining the operation state of each module unit according to the operation parameter information and the pre-stored standard parameter information; wherein the operation state includes a fault state and a normal state; and controlling the display component to display the unit number and operation parameters of the module unit in the fault state.

[0083] In addition, the logic instructions in the above-mentioned memory 830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0084] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0085] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for locating a fault in an air conditioning system, characterized in that: The air conditioning system includes a plurality of module units, and the fault locating method includes: Acquire operation parameter information of a plurality of module units, and determine the operation status of each module unit according to the operation parameter information and pre-stored standard parameter information; wherein the operation status includes a fault state and a normal state; The control display component displays the unit number and operating parameters of the module unit in the fault state.

2. The fault location method of the air conditioning system according to claim 1, characterized in that: The step of determining the operating state of each module unit according to the operating parameter information and the pre-stored standard parameter information further includes: The unit number and operating parameters of the module unit in the fault state are sent to the cloud server.

3. The fault location method of the air conditioning system according to claim 1, characterized in that: The step of determining the operating state of each module unit according to the operating parameter information and the pre-stored standard parameter information further includes: Determine the parameter deviation value between the operating parameter of the module unit in the fault state and the standard parameter, and control the display component to display the parameter deviation value and control the display mode of the display component.

4. The fault location method of the air conditioning system according to claim 3, characterized in that: The step of controlling the display component to display the parameter deviation value and controlling the display mode of the display component specifically includes: When the ratio of the parameter deviation value to the standard parameter is less than or equal to a preset ratio, controlling the display component to display the parameter deviation value in an early warning mode; When the ratio of the parameter deviation value to the standard parameter is greater than the preset ratio, the display component is controlled to display the parameter deviation value in a danger mode.

5. The fault location method of the air conditioning system according to claim 1, characterized in that: The step of determining the operating state of each module unit according to the operating parameter information and the pre-stored standard parameter information further includes: Determining a predicted fault type of the module unit in a fault state according to the operating parameter information, the standard parameter information and a predetermined fault type prediction relationship; The display component is controlled to display the predicted fault type of the module group.

6. The fault location method of the air conditioning system according to claim 5, characterized in that: The step of determining the predicted fault type of the module unit in a fault state according to the operating parameter information, the standard parameter information and the predetermined fault type prediction relationship further includes: Obtain the actual fault type input by maintenance personnel; The operating parameters, the standard parameters, the predicted fault type, and the actual fault type are sent to a fault type prediction model of a cloud server, and the fault type prediction relationship is updated according to the fault type prediction model.

7. The fault location method of the air conditioning system according to claim 5, characterized in that: The step of determining the predicted fault type of the module unit in a fault state according to the operating parameter information, the standard parameter information and the predetermined fault type prediction relationship further includes: An emergency measure is determined according to the fault type and a predetermined correspondence relationship between emergency measures, and the air conditioning system is controlled to execute the emergency measure.

8. The fault location method of the air conditioning system according to any one of claims 1 to 7, characterized in that: The step of obtaining the operating parameter information of the plurality of module units further comprises: All of the operating parameters are sent to the cloud server, and an instruction is issued to generate a chart showing the trend of operating parameter changes.

9. A fault location device for an air conditioning system, characterized in that: include: An acquisition module, used to acquire operating parameter information of a plurality of module units, and determine the operating state of each module unit according to the operating parameter information and pre-stored standard parameter information; wherein the operating state includes a fault state and a normal state; The control module is used to control the display component to display the unit number and operating parameters of the module unit in the fault state.

10. An air conditioning system, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the fault locating method for the air conditioning system according to any one of claims 1 to 8 are implemented.

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