Equipment management system and equipment management method based on digital twinning

Abstract

The invention provides an equipment management system and an equipment management method based on digital twinning. The device management system comprises: a database in which configuration information of a target scene is stored; the main control unit is in coupled communication with the database, and the main control unit is configured to read the configuration information of the target scenes stored in the database and create corresponding virtual nodes and message queues according to the configuration information of each target scene; wherein the corresponding virtual node communicates with the first gateway through a message queue; the virtual nodes are configured to receive the operation data reported by the first gateways corresponding to the virtual nodes through the message queues, and the virtual nodes are configured to give an alarm according to the operation data or control a plurality of uninterruptible power supply devices connected with the first gateways corresponding to the virtual nodes to perform main-standby switching. According to the equipment management system and the equipment management method, the fault of the uninterruptible power supply equipment can be predicted in advance, and the standby uninterruptible power supply equipment is quickly switched before the fault occurs, so that continuous and stable power supply is ensured.

Description

Technical Field

[0001] The present invention generally relates to the field of computer simulation technology, and more particularly to a device management system and a device management method based on digital twin. Background Art

[0002] In scenarios with extremely high requirements for the continuity and stability of electricity (such as medical institutions, data centers, industrial production lines, transportation systems, financial institutions, emergency rescue departments, etc.), it is often necessary to configure uninterruptible power supply equipment (USP, Uninterruptible Power Supply). The uninterruptible power supply equipment is a device that can provide continuous power supply. It can automatically switch to the backup power supply when the mains power is interrupted to ensure the normal operation of important equipment. However, various faults may occur during the actual operation of the uninterruptible power supply equipment, such as battery faults, inverter faults, transformer faults, etc. These faults will cause power interruptions and seriously affect the normal operation of the equipment.

[0003] Therefore, how to ensure the stable operation of these uninterruptible power supply equipment, predict the faults of the uninterruptible power supply equipment in advance, and quickly switch to the backup uninterruptible power supply equipment before the faults occur, so as to ensure continuous and stable power supply, is an urgent problem to be solved at present.

[0004] The content of the technical part is only the technology known to the inventor and does not necessarily represent the prior art in this field. Summary of the Invention

[0005] In view of one or more deficiencies in the prior art, the present invention provides a device management system based on digital twin for managing one or more backup power modules. Each of the backup power modules includes a first gateway and a plurality of uninterruptible power supply devices. The plurality of uninterruptible power supply devices in each backup power module are master-slave to each other, and the plurality of uninterruptible power supply devices in each backup power module report operation data through the corresponding first gateway. The device management system includes:

[0006] A database storing the configuration information of the backup power module;

[0007] A main control unit communicatively coupled to the database. The main control unit is configured to read the configuration information of the backup power module stored in the database and create corresponding virtual nodes and message queues according to the configuration information of each backup power module. Wherein,

[0008] The corresponding virtual nodes and the first gateway communicate through the message queue;

[0009] The virtual node is configured to receive the operation data reported by the corresponding first gateway through the message queue, and the virtual node is further configured to issue an alarm or control the main - backup switching of multiple uninterruptible power supply devices connected to the corresponding first gateway according to the operation data;

[0010] The virtual node is further configured to create corresponding virtual devices according to the uninterruptible power supply devices connected to the corresponding first gateway;

[0011] The virtual device is configured to simulate the operation data of the corresponding uninterruptible power supply device.

[0012] According to one aspect of the present invention, the virtual node is configured to:

[0013] According to the operation data of each corresponding uninterruptible power supply device, respectively determine the health status of the corresponding uninterruptible power supply device;

[0014] When the health status of the primary uninterruptible power supply device is lower than the first threshold, control the main - backup switching of the corresponding multiple uninterruptible power supply devices.

[0015] When the health status of the primary uninterruptible power supply device continuously remains higher than the first threshold and lower than the second threshold within a preset time, issue an alarm.

[0016] According to one aspect of the present invention, the main control unit includes multiple main nodes. The main nodes have a primary state and a standby state. The multiple main nodes are mutually primary - backup and are respectively coupled to the one or more virtual nodes. The main node is configured to, in the primary state, read the configuration information of the backup power module stored in the database and establish communication with the virtual node.

[0017] According to one aspect of the present invention, the main node is configured to, in the primary state, send a first heartbeat signal to the virtual node according to a preset first heartbeat period; after the main node sends the first heartbeat signal to the virtual node, if it does not receive the feedback from the virtual node within the preset time, recreate the virtual node.

[0018] According to one aspect of the present invention, the virtual node is configured to respond to the first heartbeat signal and send a second heartbeat signal to the main node in the primary state.

[0019] According to one aspect of the present invention, the virtual node is configured to, if it does not receive the first heartbeat signal within the first heartbeat period, output a communication request to the main node in the standby state;

[0020] The main node is configured to establish communication with the virtual node according to the communication request and switch to the primary state.

[0021] According to one aspect of the present invention, the device management system further includes a plurality of second gateways having a primary state and a standby state, wherein the plurality of second gateways are mutually primary and standby, and each of the second gateways is respectively coupled to the plurality of primary nodes and the one or more virtual nodes;

[0022] The second gateway is configured to establish communication with the virtual node and the primary node in the primary state in the primary state.

[0023] According to one aspect of the present invention, the plurality of second gateways are coupled to each other for communication and mutually monitor the network connection status;

[0024] The second gateway is configured to record the disconnection of the corresponding second gateway if it detects that the second gateway in the standby state is disconnected in the primary state.

[0025] The second gateway is further configured to switch to the primary state if it detects that the second gateway in the primary state is disconnected in the standby state, and establish communication with the virtual node and the primary node in the primary state.

[0026] According to one aspect of the present invention, the plurality of second gateways mutually send a third heartbeat signal according to a preset second heartbeat period, and the second gateway is configured to determine that the second gateway is disconnected if it does not receive the third heartbeat signal of the target second gateway within the second heartbeat period.

[0027] According to one aspect of the present invention, the database is provided by a cloud server.

[0028] According to one aspect of the present invention, the virtual node is further configured to create a corresponding virtual device according to the uninterruptible power supply device connected to its corresponding first gateway;

[0029] The virtual device is configured to simulate the operation data of the uninterruptible power supply device corresponding to it.

[0030] The present invention also provides a device management method, based on the device management system as described above, for managing one or more standby power modules, the standby power module including a first gateway and a plurality of uninterruptible power supply devices, the plurality of uninterruptible power supply devices being mutually primary and standby, and the uninterruptible power supply device reporting operation data through the corresponding first gateway; the device management method includes:

[0031] Storing the configuration information of the standby power module through the database;

[0032] The main control unit reads the configuration information of the backup power supply module stored in the database, and creates corresponding virtual nodes and message queues according to the configuration information of each backup power supply module. The corresponding virtual nodes and the first gateway communicate through the message queue;

[0033] The virtual node simulates the operation data of the uninterruptible power supply device reported by the corresponding first gateway, and issues an alarm or controls the main and backup switching of multiple uninterruptible power supply devices connected to the corresponding first gateway according to the operation data;

[0034] The virtual node creates corresponding virtual devices according to the uninterruptible power supply devices connected to the corresponding first gateway;

[0035] The virtual device simulates the operation data of the corresponding uninterruptible power supply device.

[0036] Compared with the prior art, the embodiments of the present invention provide a device management system and a device management method based on digital twin. Among them, the main control unit creates virtual nodes and message queues. The virtual nodes receive the operation data reported by the corresponding first gateway through the message queue. The virtual nodes issue an alarm or control the main and backup switching of multiple uninterruptible power supply devices connected to the corresponding first gateway according to the operation data, so as to predict the faults of the uninterruptible power supply devices in advance and quickly switch to the backup uninterruptible power supply devices before the faults occur, thus ensuring continuous and stable power supply. Description of the Drawings

[0037] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0038] Figure 1 Shows a schematic diagram of a device management system based on digital twin according to an embodiment of the present invention;

[0039] Figure 2 Shows a flowchart of operation data collection and processing according to an embodiment of the present invention;

[0040] Figure 3 Shows a flowchart of the virtual node sending data to the uninterruptible power supply device according to an embodiment of the invention;

[0041] Figure 4 Shows a schematic diagram of a device management method according to an embodiment of the present invention. Detailed Embodiments

[0042] In the following text, only some exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are to be regarded as illustrative in nature and not restrictive.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0044] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", and "coupled" 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, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0046] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0047] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention and are not intended to limit the present invention.

[0048] Figure 1 A schematic diagram of a digital twin-based device management system 100 according to an embodiment of the present invention is shown. The following will be described in detail in conjunction with Figure 1 this.

[0049] As Figure 1 shown, the device management system 100 is used to manage one or more backup power modules. Three backup power modules are schematically shown in the figure, for example, the backup power module 201, the backup power module 202, and the backup power module 203. Each backup power module may include a first gateway and a plurality of uninterruptible power supply devices. For example, the backup power module 201 includes the first gateway 211, the uninterruptible power supply device 221, and the uninterruptible power supply device 221. In the same backup power module, the first gateway is coupled and communicates with each uninterruptible power supply device, and the plurality of uninterruptible power supply devices are primary and backup to each other. For example, the first gateway 211 is coupled and communicates with the uninterruptible power supply devices 221 and 222 respectively, and the uninterruptible power supply device 221 and the uninterruptible power supply device 222 are primary and backup to each other. Each uninterruptible power supply device 221-226 reports its own operating data through the corresponding first gateway 211, 212, or 213. For example, the uninterruptible power supply device 223 reports its own operating data through the first gateway 212. The operating data may include battery status, output power, input voltage, temperature, current, frequency, etc.

[0050] As Figure 1As shown in the figure, the device management system 100 includes a database 160 and a main control unit 110. Among them, the database 160 can be provided by a cloud server, or can of course be set locally. The database 160 stores the configuration information of the backup power supply module. The configuration information can be, for example, the serial numbers and connection relationships of the first gateway and the uninterruptible power supply device. According to the configuration information, for example, the information of each first gateway can be obtained, and the information of multiple uninterruptible power supply devices coupled to each first gateway can be obtained. The main control unit 110 is coupled and communicates with the database 160. The main control unit 110 is configured to read the configuration information of the backup power supply module stored in the database 160, and create corresponding virtual nodes (such as virtual nodes 121, 122, 123) and message queues (MQ Topics, such as message queues 151, 152, 153) according to the configuration information of each backup power supply module. The number of virtual nodes and message queues is related to the number of backup power supply modules. The virtual nodes, message queues and gateways in the backup power supply modules correspond one by one. The corresponding virtual nodes and the first gateways communicate through the message queues. For example, the virtual node 121 and the first gateway 211 communicate through the message queue 151. The virtual node is configured to receive the operation data of the uninterruptible power supply device reported by the corresponding first gateway through the message queue, and issue an alarm or send a command according to the operation data to control the main and standby switching of multiple uninterruptible power supply devices connected to the corresponding first gateway. For example, the virtual node 121 receives the operation data of the uninterruptible power supply devices 221 and 222 reported by the first gateway 211 through the message queue 151, and issues an alarm or controls the main and standby switching of the uninterruptible power supply devices 221 and 222 according to these operation data.

[0051] The virtual nodes are created by the main control unit 110. Each virtual node is coupled and communicates with the main control unit 110. Whenever a new backup power supply module (first gateway) is connected, the main control unit 110 can automatically generate corresponding virtual nodes according to the configuration information from the database 160, which is beneficial to system expansion; the operation data reported by the corresponding first gateway is processed by each virtual node, and a large amount of data can be segmented according to the first gateway and dispersed to different processes (even servers) for calculation, solving the problem of high concurrency. The data link is easy to trace, and the failure of the uninterruptible power supply device can be predicted in advance, and quickly switched to the backup uninterruptible power supply device before the failure occurs, so as to ensure continuous and stable power supply.

[0052] In addition to communicating with the first gateway through the message queue, the virtual node can also be configured to create corresponding virtual devices according to the uninterruptible power supply devices connected to its corresponding first gateway. For example, the virtual node 121 creates a corresponding virtual device 131 according to the uninterruptible power supply device 221. The virtual node is coupled and communicates with the corresponding virtual device. The virtual node can send the operation data of its corresponding uninterruptible power supply device to the corresponding virtual device, and the virtual device is configured to simulate the operation data of its corresponding uninterruptible power supply device. For example, the virtual device 131 simulates the operation data of the uninterruptible power supply device 221. Among them, each virtual device simulates the operation data of the corresponding uninterruptible power supply device, and then monitors the corresponding uninterruptible power supply device. When the operation data of the uninterruptible power supply device is abnormal, the uninterruptible power supply device can be located according to the virtual device. In this way, a virtual copy of the uninterruptible power supply device is created in the device management system, and the actual operation data is sent to the corresponding virtual device to simulate the operation of the device, so that the possible faults and its health status of the device can be predicted in advance, and an alarm can be issued early or the actual uninterruptible power supply device can be controlled to perform main-backup switching before the fault occurs or the health status deteriorates.

[0053] Figure 2 The flowchart of operation data acquisition and processing according to an embodiment of the present invention is shown, as Figure 2 shown, the uninterruptible power supply device can transmit its own operation data to the corresponding first gateway, and the first gateway reports the received operation data to the corresponding message queue. The virtual node is configured to listen to the corresponding message queue and can obtain the operation data from the corresponding message queue. After the virtual node obtains the operation data, it can perform legal integrity verification on the operation data. If the operation data is incomplete or illegal, the operation data will be discarded; if the operation data is legal and complete, the operation data will be decrypted, and then the operation data will be stored in the database for persistence, and business processing can also be performed according to the operation data.

[0054] Figure 3 The flowchart of the virtual node sending data to the uninterruptible power supply device according to an embodiment of the invention is shown, as Figure 3 shown, when the virtual node has data (such as a control command) that needs to be sent to the uninterruptible power supply device, the virtual node can encrypt and serialize the data. After that, the virtual node can transmit the data to the corresponding message queue. The first gateway can listen to the corresponding message queue and can obtain the data from the corresponding message queue. After the first gateway obtains the data from the message queue, it can send the data to the corresponding uninterruptible power supply device.

[0055] According to an embodiment of the present invention, as Figure 1As shown, the virtual node is configured to determine the health status of each uninterruptible power supply device according to the operation data of the uninterruptible power supply device corresponding thereto. The health status of the uninterruptible power supply device can be measured on a percentage basis. In some embodiments, it can also be measured on a decimal basis or in other ways, and the present invention is not limited thereto. The virtual node is further configured to control the main and standby switching of multiple uninterruptible power supply devices corresponding thereto when the health status of the primary uninterruptible power supply device is lower than the first threshold, and to issue an alarm when the health status of the primary uninterruptible power supply device continuously remains higher than the first threshold and lower than the second threshold within a preset time. The alarm is issued, for example, by means such as text message, email, telephone voice prompt, etc. For example, when the virtual node 122 monitors that the health status of the uninterruptible power supply device 223 (primary) is lower than 80 points, a control command is sent to the uninterruptible power supply devices 223 and 224 through the message queue 152 to control the main and standby switching of the uninterruptible power supply devices 223 and 224; when the virtual node 223 monitors that the health status of the uninterruptible power supply device 223 (primary) continuously remains higher than 80 points and lower than 90 points within 60 seconds, an alarm is issued.

[0056] According to an embodiment of the present invention, the virtual node can set different thresholds for the working parameters of the uninterruptible power supply device, and issue an alarm or perform main and standby switching in a timely manner when one or more of the working parameters exceed the thresholds. For example, separate thresholds can be set for output power, input voltage, temperature, current, etc.

[0057] According to an embodiment of the present invention, as Figure 1 shown, the main control unit 110 can include multiple main nodes, such as the main node 111 and the main node 112. The main node has a primary state and a standby state. The multiple main nodes are respectively coupled to each virtual node. The main node is configured to read the configuration information of the backup power module stored in the database and establish communication with each virtual node in the primary state. The multiple main nodes are mutually primary and standby to improve the stability of the system operation. For example, the main node 111 is usually in the primary state, and the main node 112 is usually in the standby state. When the main node 111 fails (such as drops offline), the main node 112 switches to the primary state to replace the main node 111 to complete the work.

[0058] According to an embodiment of the present invention, as Figure 1As shown, the master node is further configured to send a first heartbeat signal to each virtual node according to a preset first heartbeat period in the active state. The master node is further configured to, after sending the first heartbeat signal to the virtual node, recreate the virtual node if the corresponding virtual node's feedback (indicating that the virtual node has dropped offline) is not received within a preset time. Through the above solution, the master node can monitor the network connection status of the virtual node, and when the virtual node drops offline, create a new virtual node in a timely manner, thereby ensuring the stable operation of the device management system 100.

[0059] According to an embodiment of the present invention, as Figure 1 shown, the virtual node can be configured to send a second heartbeat signal to the master node in the active state in response to the first heartbeat signal.

[0060] According to an embodiment of the present invention, as Figure 1 shown, the virtual node can also be configured to output a communication request to the master node in the standby state if the first heartbeat signal is not received within the first heartbeat period (indicating that the master node in the active state has dropped offline). The master node is configured to establish communication with the corresponding virtual node according to the communication request and switch to the active state. Through the above solution, the virtual node can monitor the network connection status of the master node in the active state. When the master node in the active state drops offline, the master node is actively removed, and communication is established with the master node in the standby state to ensure the stable operation of the device management system 100.

[0061] According to an embodiment of the present invention, as Figure 1 shown, the device management system 100 further includes a plurality of second gateways, such as second gateway 141 and second gateway 142. Each second gateway has an active state and a standby state, and the second gateways are respectively coupled to each master node and each virtual node. The plurality of second gateways are mutually in a primary / standby relationship. For example, when the second gateway 141 is in the active state, the second gateway 142 is in the standby state; when the second gateway 142 switches to the active state, the second gateway 141 switches to the standby state. The second gateway is configured to establish communication with each virtual node and the master node in the active state in the active state.

[0062] According to an embodiment of the present invention, as Figure 1As shown, multiple second gateways are coupled to each other for communication and monitor the network connection status of each other. Among them, the second gateway can be configured such that in the primary state, if it detects that a second gateway in the standby state is offline, it records the disconnection of the corresponding second gateway; the second gateway can also be configured such that in the standby state, if it detects that a second gateway in the primary state is offline, it switches to the primary state and establishes communication with each virtual node and the primary node in the primary state. Specifically, multiple second gateways can send third heartbeat signals to each other according to a preset second heartbeat period. The second gateway is configured to determine that the second gateway is offline if it does not receive the second heartbeat signal of the target second gateway within the second heartbeat period. For example, when the second gateway 141 does not receive the second heartbeat signal sent by the second gateway 142 within the second heartbeat period, it is determined that the second gateway 142 is offline.

[0063] Compared with the prior art, the embodiments of the present invention provide a device management system based on digital twins. Among them, by the main control unit, virtual nodes and message queues are created, and each virtual node processes the operation data reported by the corresponding first gateway. A large amount of data can be segmented according to the first gateway and dispersed to different processes (even servers) for calculation, solving the problem of high concurrency. The data link is easy to trace, and the failure of the uninterruptible power supply device can be predicted in advance, and quickly switched to the standby uninterruptible power supply device before the failure occurs, so as to ensure continuous and stable power supply. By the main node and the virtual nodes monitoring the network connection status of each other, when the primary main node and / or virtual node is offline, the primary / standby switch of the main node can be performed in time or new virtual nodes can be created to ensure the stable operation of the device management system.

[0064] Figure 4 FIG. shows a schematic diagram of a device management method 300 according to an embodiment of the present invention. The device management method 300 is implemented based on the device management system 100 as described above and is used to manage one or more standby power modules, such as Figure 4 As shown, the device management method 300 includes the following steps, which will be described in detail below.

[0065] In step S310, the main control unit reads the operation data in the database and creates one or more virtual nodes. The virtual nodes are coupled to the main control unit for communication and correspond to the first gateways one by one;

[0066] In step S320, the virtual nodes simulate the operation of the uninterruptible power supply devices reported by the corresponding first gateways, and issue an alarm according to the operation data or control the main / standby switch of the multiple uninterruptible power supply devices connected to the corresponding first gateways;

[0067] In step S330, multiple virtual devices are created through virtual nodes, and the multiple virtual devices correspond one-to-one to multiple uninterruptible power supply devices;

[0068] In step S340, the operation data of the corresponding uninterruptible power supply device is simulated and run through the virtual device.

[0069] In step S310: The configuration information of the standby power supply module is stored through the database;

[0070] In step S320: The configuration information of the standby power supply module stored in the database is read through the main control unit, and corresponding virtual nodes and message queues are created according to the configuration information of each standby power supply module. The corresponding virtual nodes and the first gateway communicate through the message queue;

[0071] In step S330: The operation data of the uninterruptible power supply device reported by the corresponding first gateway is simulated and run through the virtual node, and an alarm is issued according to the operation data or multiple uninterruptible power supply devices connected to the corresponding first gateway are controlled to perform primary and standby switching;

[0072] In step S340: Corresponding virtual devices are created through the virtual node according to the uninterruptible power supply devices connected to the corresponding first gateway;

[0073] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device management system based on digital twin for managing one or more backup power modules, each of the backup power modules including a first gateway and a plurality of uninterruptible power supply devices, the plurality of uninterruptible power supply devices in each backup power module being master-slave to each other, and the plurality of uninterruptible power supply devices in each backup power module reporting operation data through the corresponding first gateway; the device management system includes: A database storing configuration information of the backup power modules; A main control unit coupled to communicate with the database, the main control unit being configured to read the configuration information of the backup power modules stored in the database and create corresponding virtual nodes and message queues according to the configuration information of each backup power module; wherein, The corresponding virtual node and the first gateway communicate through the message queue; The virtual node is configured to receive the operation data reported by the corresponding first gateway through the message queue, and the virtual node is further configured to issue an alarm or control the master-slave switch of the plurality of uninterruptible power supply devices connected to the corresponding first gateway according to the operation data.

2. The device management system according to claim 1, wherein The virtual node is configured to: Determine the health status of the corresponding uninterruptible power supply device respectively according to the operation data of each uninterruptible power supply device corresponding to it; When the health status of the primary uninterruptible power supply device is lower than the first threshold, control the master-slave switch of the plurality of uninterruptible power supply devices corresponding to it; When the health status of the primary uninterruptible power supply device is continuously higher than the first threshold and lower than the second threshold within a preset time, issue an alarm.

3. The device management system according to claim 1, wherein The main control unit includes a plurality of main nodes, the main nodes having a primary state and a standby state, the plurality of main nodes being master-slave to each other and respectively coupled to the one or more virtual nodes, the main nodes being configured to read the configuration information of the backup power modules stored in the database and establish communication with the virtual nodes in the primary state.

4. The device management system according to claim 3, wherein, The main node is configured to send a first heartbeat signal to the virtual node according to a preset first heartbeat period in the primary state; the main node is further configured to recreate the virtual node if it does not receive the feedback from the virtual node within a preset time after sending the first heartbeat signal to the virtual node.

5. The device management system according to claim 4, wherein, The virtual node is configured to send a second heartbeat signal to the main node in the primary state in response to the first heartbeat signal.

6. The device management system according to claim 4, wherein The virtual node is configured to output a communication request to the main node in the standby state if it does not receive the first heartbeat signal within the first heartbeat period; The main node is configured to establish communication with the virtual node according to the communication request and switch to the primary state.

7. The device management system according to claim 3 further includes a plurality of second gateways having a primary state and a standby state, wherein, The plurality of second gateways are master-slave to each other, and each of the second gateways is respectively coupled to the plurality of main nodes and the one or more virtual nodes; The second gateway is configured to establish communication with the virtual node and the main node in the primary state in the primary state.

8. The device management system according to claim 7, wherein, The plurality of second gateways are coupled to communicate with each other and monitor the network connection status with each other; The second gateway is configured to record the disconnection of the corresponding second gateway in the primary state if it detects that the second gateway in the standby state is disconnected; The second gateway is further configured to, in the standby state, if it detects that the second gateway in the primary state is offline, switch to the primary state and establish communication with the virtual node and the primary node in the primary state.

9. The device management system according to claim 8, wherein, Multiple second gateways send third heartbeat signals to each other according to a preset second heartbeat period. The second gateway is configured to determine that the second gateway is offline if it does not receive the third heartbeat signal of the target second gateway within the second heartbeat period.

10. The device management system according to any one of claims 1-9, wherein, The database is provided by a cloud server.

11. The device management system according to any one of claims 1-9, wherein, The virtual node is further configured to create a corresponding virtual device according to the uninterruptible power supply device connected to its corresponding first gateway; The virtual device is configured to simulate the operation data of the uninterruptible power supply device corresponding to it.

12. A device management method, based on the device management system according to any one of claims 1-11, for managing one or more backup power modules, each backup power module including a first gateway and a plurality of uninterruptible power supply devices, the plurality of uninterruptible power supply devices in each backup power module being primary and backup to each other, and the plurality of uninterruptible power supply devices in each backup power module reporting operation data through their corresponding first gateways; the device management method includes: Storing the configuration information of the backup power module in a database; Reading, by a main control unit, the configuration information of the backup power module stored in the database, and creating a corresponding virtual node and message queue according to the configuration information of each backup power module, and the corresponding virtual node and the first gateway communicate through the message queue; Simulating, by the virtual node, the operation data of the uninterruptible power supply device reported by its corresponding first gateway, and issuing an alarm or controlling the primary and backup switching of the plurality of uninterruptible power supply devices connected to its corresponding first gateway according to the operation data; Creating, by the virtual node, a corresponding virtual device according to the uninterruptible power supply device connected to its corresponding first gateway; Simulating, by the virtual device, the operation data of the uninterruptible power supply device corresponding to it.

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