Control method and device for air conditioner group control system and air conditioner group control system

Abstract

The invention relates to the technical field of intelligent household appliances, and discloses a control method and device for an air conditioner group control system and the air conditioner group control system. The control method comprises the steps that current operation parameters of target equipment in the air conditioner group control system and virtual operation parameters of the target equipment in a virtual operation model are obtained; comparing the current operation parameter with the virtual operation parameter, and determining the operation state of the target equipment; when the target equipment is in the fault operation state, screening out a target fault model from a plurality of fault models corresponding to the target equipment according to the current operation parameters; and under the condition that the target fault model is an automatic recovery model, controlling the target equipment and equipment associated with the target equipment in the group control system according to a control strategy corresponding to the target fault model. According to the air conditioner group control system, after equipment faults in the air conditioner group control system are monitored, the faults in the air conditioner group control system can be eliminated in time, and the intelligent degree and safety of the air conditioner group control system are improved.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, for example, to a control method and device for an air-conditioning group control system, and an air-conditioning group control system. Background Art

[0002] Since the air conditioning group control system is equipped with many devices, the risk of failure of the air conditioning group control system is relatively high. Therefore, it is necessary to monitor the failure of the air conditioning group control system.

[0003] In order to realize fault monitoring of equipment in an air-conditioning group control system, a related technology discloses an intelligent equipment management method based on the Internet of Things, including: collecting historical data of equipment requiring fault prediction, the historical data including sensor data and equipment parameters; extracting data records containing equipment failures through the historical data, generating a training data set of fault status based on the data records, training the model through a machine learning algorithm, establishing a fault prediction model, and evaluating the model using the training data set to obtain the accuracy of the model; monitoring equipment requiring fault prediction through a sensor network to obtain real-time data information of the equipment, transmitting the real-time data information to a central data management system for processing and analysis to obtain real-time collected data; calculating the predicted fault probability value of the equipment based on the fault prediction model and the real-time collected data; calculating the predicted fault probability value of the equipment based on the predicted fault probability value and the accuracy of the model; optimizing and updating the model through the fault probability value and continuously collecting data.

[0004] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0005] The solutions of the related art can only monitor equipment failures in the air-conditioning group control system. However, after the equipment failure is detected, the failures in the air-conditioning group control system cannot be eliminated, and the intelligence level of the air-conditioning group control system is low.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a control method and device for an air-conditioning group control system, and an air-conditioning group control system. After detecting equipment failure in the air-conditioning group control system, the failure in the air-conditioning group control system can be promptly eliminated, thereby improving the intelligence level of the air-conditioning group control system.

[0009] In some embodiments, a control method for an air conditioning group control system includes: obtaining current operating parameters of a target device in the air conditioning group control system, and virtual operating parameters of the target device in a virtual operating model; comparing the current operating parameters and the virtual operating parameters to determine the operating status of the target device; when the target device is in a faulty operating state, screening out a target fault model from multiple fault models corresponding to the target device according to the current operating parameters; when the target fault model is an automatically recoverable model, controlling the target device and devices associated with the target device in the group control system according to a control strategy corresponding to the target fault model.

[0010] In this embodiment, the virtual operation model is a model that simulates the normal operation of the target device in the air conditioning group control system. The fault model is a model that represents the state of any device in the air conditioning group control system when it is in a faulty state. Since the fault states of a device may include multiple types, a device in the air conditioning group control system may correspond to multiple fault models. Specifically, in this embodiment, it is possible to confirm whether the target device is in a faulty operation state by comparing the current operating parameters of the target device with the virtual operating parameters. When the target device is in a faulty operation state, the target fault model can be determined from the multiple fault models corresponding to the target device based on the current operating parameters of the target device. When the target fault model is an automatically recoverable model, the operation of the target device and its associated devices can be controlled according to the control strategy corresponding to the target fault model. In this way, after detecting a device fault in the air conditioning group control system, the fault in the air conditioning group control system can be promptly eliminated, thereby improving the intelligence level of the air conditioning group control system and improving the safety of the operation of the air conditioning group control system.

[0011] Optionally, the current operating parameters and virtual operating parameters are compared to determine the operating status of the target device, including: when the difference between the current operating parameters and the virtual operating parameters is greater than or equal to a set threshold, determining that the target device is in a faulty operating state; when the difference between the current operating parameters and the virtual operating parameters is less than the set threshold, determining that the target device is in a normal operating state.

[0012] In this embodiment, by comparing the difference between the current operating parameter and the virtual operating parameter with the set threshold, it is possible to monitor whether there is a fault in the operation of the target device.

[0013] Optionally, the control method further includes: when the target fault model is a non-automatic recovery model, controlling the target device and devices associated with the target device to stop running, and issuing device fault alarm information.

[0014] In this embodiment, upon confirming that the target device is in a faulty operating state and that the target fault model is a non-automatic recovery model, the processor controls the target device and devices associated with the target device to stop operating and issues a device fault alarm. This reduces the risk of hardware damage to the target device and devices associated with the target device after a target device fault occurs.

[0015] Optionally, after controlling the target device and devices associated with the target device to stop running, the control method further includes: generating a fault report of the air-conditioning group control system based on the target fault model.

[0016] In this embodiment, by generating a fault report of the time when the fault occurred, the operating parameters of the target device when the fault occurred, and the operating parameters of the devices associated with the target device, reference information can be provided for subsequent maintenance personnel of the air-conditioning group control system, making it easier for maintenance personnel to analyze the actual cause of the failure of the target device and to quickly and accurately determine the maintenance plan for the air-conditioning group control system.

[0017] Optionally, after generating a fault report of the air conditioning group control system based on the target fault model, the control method further includes: generating a maintenance plan for the air conditioning group control system based on the fault report; and sending the maintenance plan to a terminal device of a maintenance personnel.

[0018] In this embodiment, by generating a fault report and sending the repair plan determined based on the fault report to the maintenance personnel's terminal device, the maintenance personnel can clearly identify the components that need to be replaced or repaired. This allows the maintenance personnel to prepare the components and tools needed for maintenance in advance, which helps shorten the time spent on repairing the air conditioning group control system.

[0019] Optionally, before obtaining the current operating parameters of the target device in the air-conditioning group control system, the control method also includes: obtaining the historical operating parameters of all devices in the air-conditioning group control system; constructing a virtual operating model of the air-conditioning group control system based on the historical operating parameters, and a fault model corresponding to each device in the air-conditioning group control system.

[0020] In this embodiment, a virtual operating model of the air conditioning group control system and a corresponding fault model for each device in the air conditioning group control system are constructed using the system's historical operating parameters. This facilitates subsequent determination of the operating status of any device in the air conditioning group control system and, if a device in the system is confirmed to be in a faulty operating state, facilitates timely troubleshooting of the system.

[0021] Optionally, a virtual operation model of the air-conditioning group control system and a fault model corresponding to each device in the air-conditioning group control system are constructed based on historical operation parameters, including: extracting a first historical parameter of each device in a normal operating state and a second historical parameter of each device in a faulty operating state from the historical operation parameters; constructing a virtual operation model based on the first historical parameter; and constructing multiple fault models for each device based on the second historical parameter.

[0022] In this embodiment, the historical operating parameters of the air-conditioning group control system are divided and processed, and corresponding models are constructed using corresponding parameters, thereby improving the accuracy of the constructed virtual operating model and fault model.

[0023] In some embodiments, a control device for an air-conditioning group control system includes: an acquisition module configured to acquire current operating parameters of a target device in the air-conditioning group control system, and virtual operating parameters of the target device in a virtual operating model; a comparison module configured to compare the current operating parameters and the virtual operating parameters to determine the operating status of the target device; a screening module configured to, when the target device is in a faulty operating state, screen out a target fault model from multiple fault models corresponding to the target device according to the current operating parameters; and a control module configured to, when the target fault model is an automatically recoverable model, control the target device and devices associated with the target device in the group control system according to a control strategy corresponding to the target fault model.

[0024] In this embodiment, the comparison module can confirm whether the target device is in a faulty operating state by comparing the current operating parameters of the target device with the virtual operating parameters. When the target device is in a faulty operating state, the screening module can determine the target fault model from multiple fault models corresponding to the target device based on the current operating parameters of the target device. When the target fault model is an automatically recoverable model, the control module can control the operation of the target device and its associated devices according to the control strategy corresponding to the target fault model. In this way, after monitoring the equipment fault in the air conditioning group control system, the fault in the air conditioning group control system can be promptly eliminated, thereby improving the intelligence level of the air conditioning group control system and improving the safety of the operation of the air conditioning group control system.

[0025] In some embodiments, a control device for an air conditioning group control system includes a processor and a memory storing program instructions, and the processor is configured to execute the control method for the air conditioning group control system as described above when running the program instructions.

[0026] In this embodiment, the processor executes the control method for the air-conditioning group control system as described above. After detecting equipment failure in the air-conditioning group control system, the processor can promptly eliminate the failure in the air-conditioning group control system, thereby improving the intelligence level of the air-conditioning group control system and improving the safety of the operation of the air-conditioning group control system.

[0027] In some embodiments, an air conditioning group control system includes: a plurality of devices; and a control device for the air conditioning group control system as described above, installed on a device body of any device.

[0028] In this embodiment, by installing the control device for the air-conditioning group control system as described above on the device body of any device, after detecting a device failure in the air-conditioning group control system, the failure in the air-conditioning group control system can be eliminated in a timely manner, thereby improving the intelligence level of the air-conditioning group control system and improving the safety of the operation of the air-conditioning group control system.

[0029] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0031] Figure 1 is a schematic diagram of an air conditioning group control system provided by an embodiment of the present disclosure;

[0032] Figure 2 is a schematic diagram of a control method for an air conditioning group control system provided by an embodiment of the present disclosure;

[0033] Figure 3 is a schematic diagram of another control method for an air conditioning group control system provided by an embodiment of the present disclosure;

[0034] Figure 4 is a schematic diagram of another control method for an air conditioning group control system provided by an embodiment of the present disclosure;

[0035] Figure 5 is a schematic diagram of a control device for an air conditioning group control system provided by an embodiment of the present disclosure;

[0036] Figure 6 2 is a schematic diagram of another control device for an air conditioning group control system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0038] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0041] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0042] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0044] The air conditioning group control system 100 provided by the embodiment of the present disclosure is as follows Figure 1 As shown, the air conditioning group control system 100 includes a plurality of device bodies 110 and a control device 500 (600) for the air conditioning group control system.

[0045] Specifically, the plurality of devices 110 are interconnected. For example, the plurality of devices 110 include a cooling tower, a cooling pump, a freezing pump, and a chiller. The cooling tower, the cooling pump, the freezing pump, and the chiller are connected in sequence according to their working conditions.

[0046] Optionally, the control device 600 for the air-conditioning group control system is installed on the device body of any device 110, which includes a processor. The processor can obtain the current operating parameters and virtual operating parameters of the target device in the air-conditioning group control system (the virtual operating parameters are the operating parameters of the target device when it is operating in the virtual operating model according to the same set parameters as the target device). The operating status of the target device can be determined by comparing the current operating parameters and the virtual operating parameters. When the target device is in a faulty operating state, the target fault model can be screened out from the multiple fault models corresponding to the target device, and when the target fault model is an automatically recoverable model, the target device and the devices associated with the target device in the group control system are controlled according to the control strategy corresponding to the target fault model to eliminate the faults in the air-conditioning group control system.

[0047] Combine Figure 1 The air conditioning group control system shown in the embodiment of the present disclosure provides a control method for the air conditioning group control system, such as Figure 2 As shown, the control method includes:

[0048] S201: The processor obtains current operating parameters of a target device in the air-conditioning group control system and virtual operating parameters of the target device in a virtual operating model.

[0049] Specifically, the air conditioning group control system is a system including cooling towers, cooling pumps, freezing pumps, chillers, various valves, etc. The target device is any device in the air conditioning group control system.

[0050] Specifically, a device's operating parameters include its status parameters and operating parameters. Status parameters indicate the device's current state, such as whether it's in operation, faulty state, remote control, or maintenance. Operating parameters indicate parameters such as voltage, current, power, frequency, load factor, or speed during operation.

[0051] Specifically, the virtual operating model simulates the normal operation of the target device within the air conditioning group control system. This model can be constructed based on historical operating parameters stored in the system's host computer. These virtual operating parameters are the operating parameters of the target device when operating within the virtual operating model using the same set parameters as the target device.

[0052] Specifically, by comparing the target device's current operating parameters with its virtual operating parameters, it is possible to determine whether the target device's actual operating state in the air conditioning group control system differs significantly from its standard operating state, and whether there is a malfunction in the target device's operation. Therefore, it is necessary to obtain the target device's current operating parameters and virtual operating model.

[0053] S202: The processor compares the current operating parameters with the virtual operating parameters to determine the operating status of the target device.

[0054] Specifically, the operating state of the target device includes a normal operating state and a faulty operating state.

[0055] Specifically, based on the current operating parameters of the target device, the actual operating status of the target device in the air-conditioning group control system can be clarified, and based on the virtual operating parameters of the virtual operating model of the target device, the standard operating status of the target device when operating without fault in the air-conditioning group control system can be clarified.

[0056] Therefore, by comparing the target device's current operating parameters with the virtual operating parameters, the difference between the target device's actual operating state and the target device's standard operating state in the air conditioning group control system can be determined. If the difference between the target device's actual operating state and the standard operating state is significant, it indicates that the target device has an operational fault. If the difference between the target device's actual operating state and the standard operating state is small, it indicates that the target device is operating normally. Therefore, the processor can determine the target device's operating state by comparing the current operating parameters with the virtual operating parameters.

[0057] S203: When the target device is in a faulty operating state, the processor selects a target fault model from a plurality of fault models corresponding to the target device according to current operating parameters.

[0058] Specifically, the fault model is a model that represents the fault state of any device in the air conditioning group control system. The fault model can be constructed based on historical operating parameters of each device in the air conditioning group control system when it is in a faulty operating state.

[0059] It is understandable that, since a device may have multiple fault states, a device in the air conditioning group control system may correspond to multiple fault models.

[0060] Specifically, different fault models can reflect the operating parameters of the device under different fault states. Therefore, after confirming that the target device is in a faulty operating state, the processor can filter out a target fault model from multiple fault models corresponding to the target device based on the current operating parameters of the target device.

[0061] S204 : When the target fault model is an automatically recoverable model, the processor controls the target device and devices associated with the target device in the group control system according to a control strategy corresponding to the target fault model.

[0062] Specifically, devices associated with the target device are devices that have a strong correlation with the target device. For example, the target device is a chiller. Since the chiller is connected to the cooling tower and the cooling pump via a valve, the refrigerant in the cooling tower can circulate between the chiller and the cooling tower under the action of the cooling pump when the valve is open. Therefore, the cooling pump, valve, and cooling tower can be determined to be devices associated with the chiller.

[0063] Specifically, the fault model includes an automatically recoverable model and a non-automatically recoverable model. When the fault model is an automatically recoverable model, it indicates that the fault in the air conditioning group control system can be eliminated by controlling the operation of the faulty device and its related devices according to a certain strategy.

[0064] Therefore, when the determined target fault model is an automatically recoverable model, the processor can control the operation of the target device and devices associated with the target device according to the control strategy corresponding to the target fault model to eliminate the fault in the air conditioning group control system.

[0065] For example, if the target device is a chiller and a water flow loss fault occurs in the chiller, and the fault model corresponding to the fault is an automatically recoverable model, the fault in the air conditioning group control system can be corrected by increasing the operating frequency of the cooling tower and the water pump.

[0066] In the disclosed embodiment, it is possible to confirm whether the target device is in a faulty operating state by comparing the current operating parameters of the target device with the virtual operating parameters. When the target device is in a faulty operating state, the target fault model can be determined from multiple fault models corresponding to the target device based on the current operating parameters of the target device. When the target fault model is an automatically recoverable model, the operation of the target device and its associated devices can be controlled according to the control strategy corresponding to the target fault model. In this way, after detecting a device fault in the air-conditioning group control system, the fault in the air-conditioning group control system can be eliminated in a timely manner, thereby improving the intelligence level of the air-conditioning group control system and improving the safety of the operation of the air-conditioning group control system.

[0067] In some embodiments, the current operating parameters and the virtual operating parameters are compared to determine the operating status of the target device, including: when the difference between the current operating parameters and the virtual operating parameters is greater than or equal to a set threshold, determining that the target device is in a faulty operating state; when the difference between the current operating parameters and the virtual operating parameters is less than the set threshold, determining that the target device is in a normal operating state.

[0068] It is understandable that different devices have different operating parameters, so the set thresholds for different devices are also different. For example, taking the target device as a chiller, its operating parameters may include load factor, compressor voltage, current, speed, and power, etc., and the set thresholds are the set values ​​of the load factor, compressor voltage, current, speed, and power. For another example, taking the target device as a water pump, its operating parameters may include the operating frequency and speed of the water pump, and the set thresholds are the set values ​​of the operating frequency and speed of the water pump.

[0069] Specifically, when the difference between the current operating parameters and the virtual operating parameters is greater than or equal to the set threshold, it indicates that the actual operating state of the target device in the air-conditioning group control system is significantly different from the standard operating state, so it can be determined that the target device is in a faulty operating state.

[0070] Specifically, when the difference between the current operating parameters and the virtual operating parameters is less than the set threshold, it indicates that the actual operating state of the target device in the air-conditioning group control system is slightly different from the standard operating state, so it can be determined that the target device is in a normal operating state.

[0071] In this embodiment, by comparing the difference between the current operating parameter and the virtual operating parameter with the set threshold, it is possible to monitor whether there is a fault in the operation of the target device.

[0072] In some embodiments, the control method for the air conditioning group control system further includes: when the target fault model is a non-automatic recovery model, controlling the target device and devices associated with the target device to stop running, and issuing a device fault alarm message.

[0073] Specifically, if the fault model is non-automatic recovery, it indicates that the fault in the air conditioning group control system cannot be corrected by controlling the operation of the faulty device and its associated devices. If the target device remains in a faulty operating state for an extended period of time, it may cause serious hardware damage to the target device. Furthermore, due to the close interconnectedness between devices in the air conditioning group control system, a prolonged faulty operation of the target device may also cause hardware damage to associated devices.

[0074] Therefore, after confirming that the target device is in a faulty operating state and the target fault model is a non-automatic recovery model, the processor will control the target device and its associated devices to stop operating and issue a device fault alarm. This reduces the risk of hardware damage to the target device and its associated devices after the target device fails.

[0075] In some embodiments, after controlling the target device and devices associated with the target device to stop running, the control method for the air conditioning group control system further includes: generating a fault report for the air conditioning group control system based on the target fault model.

[0076] Specifically, the fault report includes information about the time when the target device fails, operating parameters of the target device when the failure occurs, and operating parameters of devices associated with the target device.

[0077] In this embodiment, by generating a fault report of the time when the fault occurred, the operating parameters of the target device when the fault occurred, and the operating parameters of the devices associated with the target device, reference information can be provided for subsequent maintenance personnel of the air-conditioning group control system, making it easier for maintenance personnel to analyze the actual cause of the failure of the target device and to quickly and accurately determine the maintenance plan for the air-conditioning group control system.

[0078] The embodiment of the present disclosure provides another control method for an air conditioning group control system, such as Figure 3 As shown, the control method includes:

[0079] S301: The processor obtains current operating parameters of a target device in the air-conditioning group control system and virtual operating parameters of the target device in a virtual operating model.

[0080] S302: The processor compares the current operating parameters with the virtual operating parameters to determine the operating status of the target device.

[0081] S303: When the target device is in a faulty operating state, the processor selects a target fault model from multiple fault models corresponding to the target device according to current operating parameters.

[0082] S304: When the target fault model is an automatically recoverable model, the processor controls the target device and devices associated with the target device in the group control system according to a control strategy corresponding to the target fault model.

[0083] S305 : When the target fault model is a non-automatic recovery model, the processor controls the target device and devices associated with the target device to stop running, and issues a device fault alarm message.

[0084] S306: The processor generates a fault report for the air conditioning group control system based on the target fault model.

[0085] S307: The processor generates a maintenance plan for the air conditioning group control system based on the fault report.

[0086] Specifically, the fault report includes the operating parameters of the target device and the operating parameters of devices associated with the target device when the fault occurs. Based on these parameters, the actual cause of the fault can be analyzed and determined, and a repair plan can be determined based on the actual cause of the fault.

[0087] For example, let's consider a chiller as the target device. Monitoring the chiller's outlet water temperature indicates an abnormality, leading to a determination that the chiller is operating in a faulty state. Analyzing the operating parameters of associated equipment reveals that the cooling tower has been inoperative for an extended period. The actual cause of the fault can be determined to be a faulty cooling tower motor. In this case, a repair solution involving replacement of the cooling tower motor can be provided.

[0088] For example, let's take a chiller as the target device. Monitoring indicates abnormal water flow in the chiller, leading to a determination that the chiller is operating abnormally. However, analysis of the operating parameters of associated equipment reveals that the cooling pump, valves, and cooling tower are all operating normally. Therefore, the actual cause of the fault can be determined to be a clogged cooling tower drain. In this case, a repair plan can be developed to clear the cooling tower drain.

[0089] S308: The processor sends the maintenance plan to the terminal device of the maintenance personnel.

[0090] Specifically, by sending the repair plan to the maintenance personnel's terminal device, the maintenance personnel can clearly identify the actual cause of the air conditioning group control system failure and the repair plan, and can directly identify the components that need to be replaced or repaired. This allows the maintenance personnel to prepare the necessary components and tools in advance, which helps shorten the time spent on repairing the air conditioning group control system.

[0091] In this embodiment, by generating a fault report and sending the repair plan determined based on the fault report to the maintenance personnel's terminal device, the maintenance personnel can clearly identify the components that need to be replaced or repaired. This allows the maintenance personnel to prepare the components and tools needed for maintenance in advance, which helps shorten the time spent on repairing the air conditioning group control system.

[0092] The embodiment of the present disclosure provides another control method for an air conditioning group control system, such as Figure 4 As shown, the control method includes:

[0093] S401: The processor obtains historical operating parameters of all devices in the air conditioning group control system.

[0094] Specifically, the host computer of the air conditioning group control system collects and stores the operating parameters of all devices in the air conditioning group control system at set intervals. Therefore, the processor can obtain historical operating parameters from the host computer.

[0095] S402: The processor constructs a virtual operation model of the air-conditioning group control system and a fault model corresponding to each device in the air-conditioning group control system according to historical operation parameters.

[0096] Specifically, based on the historical operating parameters of all devices in the air-conditioning group control system, the operating parameters of each device when there is no operational fault in the air-conditioning group control system can be determined. Also, when any device in the air-conditioning group control system is in a faulty operating state, the operating parameters of the device and the operating status and operating parameters of its associated devices. Based on the operating parameters of each device when there is no operational fault in the air-conditioning group control system, a model can be constructed that can be used to simulate the normal operation of any device in the air-conditioning group control system. Based on the operating parameters of any device in the air-conditioning group control system when it is in a faulty operating state and the operating status and operating parameters of its associated devices, multiple fault models of the device can be constructed. Therefore, the processor can construct a virtual operating model of the air-conditioning group control system and a fault model corresponding to each device in the air-conditioning group control system based on the historical operating parameters.

[0097] S403: The processor obtains the current operating parameters of the target device in the air-conditioning group control system and the virtual operating parameters of the target device in the virtual operating model.

[0098] S404: The processor compares the current operating parameters with the virtual operating parameters to determine the operating status of the target device.

[0099] S405 : When the target device is in a faulty operating state, the processor selects a target fault model from a plurality of fault models corresponding to the target device according to current operating parameters.

[0100] S406 : When the target fault model is an automatically recoverable model, the processor controls the target device and devices associated with the target device in the group control system according to a control strategy corresponding to the target fault model.

[0101] In this embodiment, a virtual operating model of the air conditioning group control system and a corresponding fault model for each device in the air conditioning group control system are constructed using the system's historical operating parameters. This facilitates subsequent determination of the operating status of any device in the air conditioning group control system and, if a device in the system is confirmed to be in a faulty operating state, facilitates timely troubleshooting of the system.

[0102] In some embodiments, a virtual operation model of the air-conditioning group control system and a fault model corresponding to each device in the air-conditioning group control system are constructed based on historical operation parameters, including: extracting a first historical parameter of each device in a normal operating state and a second historical parameter of each device in a faulty operating state from the historical operation parameters; constructing a virtual operation model based on the first historical parameter; and constructing multiple fault models for each device based on the second historical parameter.

[0103] Specifically, based on the first historical parameters of each device in a normal operating state, the operating parameters of each device when there is no operating fault in the air conditioning group control system can be determined. Therefore, the processor can construct a virtual operating model of the air conditioning group control system based on the first historical parameters.

[0104] Specifically, based on the second historical parameters of each device in a faulty operating state, the operating parameters of any device in the air conditioning group control system, as well as the operating states and operating parameters of its associated devices, can be determined when the device is in a faulty operating state. Therefore, the processor can construct multiple fault models for each device based on the second historical parameters.

[0105] In this embodiment, the historical operating parameters of the air-conditioning group control system are divided and processed, and corresponding models are constructed using corresponding parameters, thereby improving the accuracy of the constructed virtual operating model and fault model.

[0106] Combine Figure 5 As shown, an embodiment of the present disclosure provides a control device 500 for an air-conditioning group control system, comprising: an acquisition module 501, a comparison module 502, a screening module 503 and a control module 504. The acquisition module 501 is configured to acquire the current operating parameters of a target device in the air-conditioning group control system, as well as the virtual operating parameters of the target device in a virtual operating model. The comparison module 502 is configured to compare the current operating parameters with the virtual operating parameters to determine the operating state of the target device. The screening module 503 is configured to, when the target device is in a faulty operating state, screen out a target fault model from a plurality of fault models corresponding to the target device according to the current operating parameters. The control module 504 is configured to, when the target fault model is an automatically recoverable model, control the target device and the devices associated with the target device in the group control system according to the control strategy corresponding to the target fault model.

[0107] In the embodiment of the present disclosure, the comparison module 502 can confirm whether the target device is in a faulty operating state by comparing the current operating parameters of the target device and the virtual operating parameters. When the target device is in a faulty operating state, the screening module 503 can determine the target fault model from multiple fault models corresponding to the target device based on the current operating parameters of the target device. When the target fault model is an automatically recoverable model, the control module 504 can control the operation of the target device and its associated devices according to the control strategy corresponding to the target fault model. In this way, after monitoring the equipment fault in the air-conditioning group control system, the fault in the air-conditioning group control system can be eliminated in a timely manner, thereby improving the intelligence level of the air-conditioning group control system and improving the safety of the operation of the air-conditioning group control system.

[0108] In some embodiments, the comparison module 502 is specifically configured to determine that the target device is in a faulty operating state when the difference between the current operating parameters and the virtual operating parameters is greater than or equal to a set threshold; and to determine that the target device is in a normal operating state when the difference between the current operating parameters and the virtual operating parameters is less than the set threshold.

[0109] In some embodiments, the control module 504 is further configured to control the target device and devices associated with the target device to stop running and issue a device failure alarm message when the target failure model is a non-automatic recovery model.

[0110] In some embodiments, the control module 504 is further configured to generate a fault report for the air conditioning group control system based on the target fault model.

[0111] In some embodiments, the control module 504 is further configured to generate a maintenance plan for the air-conditioning group control system based on the fault report; and send the maintenance plan to a terminal device of a maintenance person.

[0112] In some embodiments, the acquisition module 501 is further configured to acquire historical operating parameters of all devices in the air conditioning group control system. The control module 504 is further configured to construct a virtual operating model of the air conditioning group control system and a fault model corresponding to each device in the air conditioning group control system based on the historical operating parameters.

[0113] In some embodiments, the control module 504 is specifically configured to extract a first historical parameter of each device in a normal operating state and a second historical parameter of each device in a faulty operating state from historical operating parameters; construct a virtual operating model based on the first historical parameter; and construct multiple fault models for each device based on the second historical parameter.

[0114] Combine Figure 6As shown, an embodiment of the present disclosure provides a control device 600 for an air conditioning group control system, and the control device 600 for an air conditioning group control system includes: a processor (processor) 601 and a memory (memory) 602. Optionally, the device may also include a communication interface (Communication Interface) 603 and a bus 604. Among them, the processor 601, the communication interface 603, and the memory 602 can communicate with each other through the bus 604. The communication interface 603 can be used for information transmission. The processor 601 can call the logic instructions in the memory 602 to execute the control method for the air conditioning group control system of the above embodiment.

[0115] In addition, the logic instructions in the memory 602 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0116] Memory 602, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of the present disclosure. Processor 601 executes the program instructions / modules stored in memory 602 to execute functional applications and process data, thereby implementing the control method for the air conditioning group control system in the above-mentioned embodiments.

[0117] The memory 602 may include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 602 may include high-speed random access memory and non-volatile memory.

[0118] Combine Figure 1 As shown, an embodiment of the present disclosure provides an air-conditioning group control system 100, comprising: a plurality of devices 110, and the above-mentioned control device 500 (600) for the air-conditioning group control system. The control device 500 (600) for the air-conditioning group control system is installed on the device body of any device 110. The installation relationship described here is not limited to placement inside the device 110, but also includes installation connections with other components of the device 110, including but not limited to physical connections, electrical connections or signal transmission connections, etc. It can be understood by those skilled in the art that the control device 500 (600) for the air-conditioning group control system can be adapted to a feasible air-conditioning group control system 100, thereby realizing other feasible embodiments.

[0119] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned control method for an air-conditioning group control system.

[0120] The technical solutions of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, among other media capable of storing program code.

[0121] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0122] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0123] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical functional division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, and can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown 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 units may be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0124] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for an air conditioning group control system, characterized in that: include: Obtain the current operating parameters of the target device in the air conditioning group control system, as well as the virtual operating parameters of the target device in the virtual operating model; Compare the current operating parameters with the virtual operating parameters to determine the operating status of the target device; When the target device is in a faulty operating state, a target fault model is selected from multiple fault models corresponding to the target device according to current operating parameters; In the case where the target fault model is an automatically recoverable model, the target device and devices associated with the target device in the group control system are controlled according to a control strategy corresponding to the target fault model.

2. The control method according to claim 1, characterized in that: Compare the current operating parameters with the virtual operating parameters to determine the operating status of the target device, including: When the difference between the current operating parameter and the virtual operating parameter is greater than or equal to a set threshold, determining that the target device is in a faulty operating state; When the difference between the current operating parameter and the virtual operating parameter is smaller than the set threshold, it is determined that the target device is in a normal operating state.

3. The control method according to claim 1, wherein: The control method also includes: In the case that the target fault model is a non-automatic recovery model, the target device and the devices associated with the target device are controlled to stop running, and a device fault alarm message is issued.

4. The control method according to claim 3, characterized in that: After controlling the target device and the devices associated with the target device to stop running, the control method further includes: Generate fault reports for air conditioning group control systems based on target fault models.

5. The control method according to claim 4, characterized in that: After generating a fault report for the air conditioning group control system based on the target fault model, the control method further includes: Generate maintenance plan for air conditioning group control system based on fault report; Send the maintenance plan to the maintenance personnel's terminal device.

6. The control method according to any one of claims 1 to 5, characterized in that: Before obtaining the current operating parameters of the target device in the air conditioning group control system, the control method further includes: Obtain historical operating parameters of all equipment in the air conditioning group control system; A virtual operation model of the air-conditioning group control system and a corresponding fault model of each device in the air-conditioning group control system are constructed based on historical operation parameters.

7. The control method according to claim 6, characterized in that: Build a virtual operation model of the air conditioning group control system based on historical operating parameters, as well as the fault model corresponding to each device in the air conditioning group control system, including: Extracting a first historical parameter of each device in a normal operating state and a second historical parameter of each device in a fault operating state from the historical operating parameters; constructing a virtual operation model based on the first historical parameter; A plurality of fault models for each device are constructed based on the second historical parameters.

8. A control device for an air conditioning group control system, characterized in that: include: an acquisition module configured to acquire current operating parameters of a target device in the air conditioning group control system and virtual operating parameters of the target device in a virtual operating model; a comparison module configured to compare the current operating parameters with the virtual operating parameters to determine the operating status of the target device; a screening module configured to screen out a target fault model from a plurality of fault models corresponding to the target device according to current operating parameters when the target device is in a faulty operating state; The control module is configured to control the target device and devices associated with the target device in the group control system according to a control strategy corresponding to the target fault model when the target fault model is an automatically recoverable model.

9. A control device for an air conditioning group control system, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for an air conditioning group control system according to any one of claims 1 to 7 when running the program instructions.

10. An air conditioning group control system, characterized in that: include: Multiple devices; The control device for an air conditioning group control system according to claim 8 or 9 is installed on the device body of any device.

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