Substation connection method, system, device and medium based on edge computing

Abstract

The application discloses a substation connection method and system based on edge computing, equipment and medium, mainly relates to the technical field of substation connection, to solve the problem that the existing long connection transmission data may not guarantee the order of data, the number of long connection is more, a large number of servers are needed to support the normal operation of long connection, which is easy to cause large resource consumption. Including: obtaining the connection relationship between the substation equipment, the edge computing server and the internet of things platform, determining the success of all substation equipment and internet of things platform TCP short connection; the opening and closing of the WebSocket connection between the substation equipment, the edge computing server and the internet of things platform are controlled through the TCP short connection; when starting the WebSocket connection and there is data transmission, whether the data is received is fed back and transmitted through the TCP short connection, and then the data is transmitted in turn.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of substation connection, and particularly relates to a substation connection method, system, device and medium based on edge computing. BACKGROUND

[0002] The existing substation Internet of Things platform mainly adopts a long connection management to transmit data. The long connection refers to maintaining a connection state continuously after establishing a connection between a client and a server, without the need to reestablish a connection for each communication. For example, a low-power Internet of Things platform supporting long connection, device and management method (CN202210712108.8) performs message interaction between an operating system edge side and an Internet of Things platform cloud end through a websocket / MQTT connection mode, to achieve data collaboration, application collaboration and management collaboration. The operating system edge side is deployed with a containerized firmware on an edge hardware. The containerized firmware is internally provided with a device shadow module, a security control module, a time series database module and a message queue module.

[0003] However, in some cases, due to network delay or reconnection mechanism, the long connection data transmission may not guarantee the order of data. This may lead to inconsistency or incorrect interpretation of data. In addition, the substation involves a large number of devices for data transmission, and a large number of long connections are involved. A large number of servers are needed to support the normal operation of the long connection, which may easily cause a large resource consumption.

[0004] Therefore, there is an urgent need for a substation connection method, system, device and medium based on edge computing to solve the above problems of long connection data transmission that may not guarantee the order of data, a large number of long connections, a large number of servers needed to support the normal operation of the long connection, and a large resource consumption. SUMMARY

[0005] In view of the above problems of the prior art, the present application provides a substation connection method, system, device and medium based on edge computing to solve the problems of long connection data transmission that may not guarantee the order of data, a large number of long connections, a large number of servers needed to support the normal operation of the long connection, and a large resource consumption.

[0006] In a first aspect, the application provides a substation connection method based on edge computing, the method comprising: obtaining a connection relationship between a substation device, an edge computing server and an Internet of Things platform, based on the connection relationship, establishing a WebSocket connection between the substation device and the edge computing server, and a WebSocket connection between the edge computing server and the Internet of Things platform; after establishing the WebSocket connection, the edge computing server runs a preset test program; at the same time, the substation device and the Internet of Things platform start a TCP short connection with the edge computing server to listen to and obtain program information of the edge computing server running, and send the program information to the edge computing server; the edge computing server determines the substation device and the Internet of Things platform whose TCP short connection is successful by reading the program information; and sends an instruction to read the program information again to the substation device and the Internet of Things platform whose TCP short connection fails, reads the uploaded program information again until it is determined that all substation devices and Internet of Things platforms whose TCP short connection is successful; after it is determined that all substation devices and Internet of Things platforms whose TCP short connection is successful, the preset test program and the WebSocket connection are ended; the transmission of WebSocket connection creation requests or WebSocket connection closing requests between the substation device, the edge computing server and the Internet of Things platform is realized through the TCP short connection, thereby controlling the opening and closing of the WebSocket connection between the substation device, the edge computing server and the Internet of Things platform; when the WebSocket connection is started and there is data transmission, the feedback transmission of whether the data is received is realized through the TCP short connection, thereby transmitting the data in turn.

[0007] Further, the edge computing server determines the substation device and the Internet of Things platform whose TCP short connection is successful by reading the program information, specifically comprising: the edge computing server determines that the substation device and the Internet of Things platform whose TCP short connection is successful by reading the program information, and the program information includes a preset test program.

[0008] Further, the substation device and the Internet of Things platform start a TCP short connection with the edge computing server to listen to and obtain program information of the edge computing server running, specifically comprising: through the TCP short connection between the substation device and the edge computing server, a preset listening program in the edge computing server is called to obtain program information of the edge computing server running; through the TCP short connection between the Internet of Things platform and the edge computing server, a preset listening program in the edge computing server is called to obtain program information of the edge computing server running.

[0009] Further, when the WebSocket connection is started and there is data transmission, feedback transmission of whether data is received is performed through the TCP short connection, and then data is sequentially transmitted, specifically including: when the WebSocket connection is started and there is data transmission: S1: the data transmission side sends a data transmission request to the data receiving side through the TCP short connection, and simultaneously sends a data transmission to the data receiving side through the WebSocket connection; S2: when the data receiving side returns a data received feedback through the TCP short connection, S1-S2 are cycled until all data transmission is completed.

[0010] In a second aspect, the application provides a substation connection system based on edge computing, which comprises: an establishment module configured to obtain a connection relationship between a substation device, an edge computing server and an Internet of Things platform, and based on the connection relationship, establish a WebSocket connection between the substation device and the edge computing server, and a WebSocket connection between the edge computing server and the Internet of Things platform; a running module arranged in the edge computing server and configured to control the edge computing server to run a preset test program after the WebSocket connection is established; a TCP short connection module arranged in the substation device, the edge computing server and the Internet of Things platform, and configured to control the substation device and the Internet of Things platform to start a TCP short connection with the edge computing server, listen to and obtain program information of the edge computing server running, and send the program information to the edge computing server; the edge computing server is configured to determine the substation device and the Internet of Things platform whose TCP short connection is successful by reading the program information, and send a program information reading instruction again to the substation device and the Internet of Things platform whose TCP short connection fails, read the uploaded program information again until it is determined that the TCP short connection of all the substation devices and the Internet of Things platforms is successful; after it is determined that the TCP short connection of all the substation devices and the Internet of Things platforms is successful, the preset test program and the WebSocket connection are ended; the TCP short connection module is further configured to perform transmission of a WebSocket connection creation request or a WebSocket connection closing request between the substation device, the edge computing server and the Internet of Things platform through the TCP short connection, and then control the opening and closing of the WebSocket connection between the substation device, the edge computing server and the Internet of Things platform; when the WebSocket connection is started and there is data transmission, feedback transmission of whether data is received is performed through the TCP short connection, and then data is sequentially transmitted.

[0011] Further, the edge computing server comprises a determination unit configured to control the edge computing server to read the program information and determine the substation device and the Internet of Things platform whose TCP short connection is successful in the program information.

[0012] Further, the TCP short connection module comprises a calling monitoring unit, configured to call a preset monitoring program in the edge computing server through the TCP short connection between the substation device and the edge computing server to obtain program information running on the edge computing server, and call the preset monitoring program in the edge computing server through the TCP short connection between the Internet of Things platform and the edge computing server to obtain program information running on the edge computing server.

[0013] Further, the TCP short connection module comprises a sequential transmission unit, configured to, when the WebSocket connection is started and there is data transmission, control a data transmission party to send a data transmission request to a data receiving party through the TCP short connection and send a piece of transmission data to the data receiving party through the WebSocket connection, and when a feedback that the data receiving party has received the data is received through the TCP short connection, send the data transmission request again until all the data transmission is completed.

[0014] In a third aspect, the present application provides a substation connection device based on edge computing, comprising: a processor; and a memory having executable code stored thereon, when the executable code is executed, the processor executes any one of the above substation connection methods based on edge computing.

[0015] In a fourth aspect, the present application provides a non-volatile computer storage medium having computer instructions stored thereon, when the computer instructions are executed, the computer instructions implement any one of the above substation connection methods based on edge computing.

[0016] Those skilled in the art can understand that the present application has at least the following beneficial effects:

[0017] The present application solves the problem that the order of data may not be guaranteed when long connection transmits data by transmitting feedback of whether the data is received through the TCP short connection when the WebSocket connection is started and there is data transmission, and then sequentially transmitting the data. The present application controls the opening and closing of the WebSocket connection between the substation device, the edge computing server and the Internet of Things platform by transmitting the WebSocket connection creation request or the WebSocket connection closing request between the substation device, the edge computing server and the Internet of Things platform through the TCP short connection, thereby effectively controlling the number of long connections, and solving the problem that a large number of servers are needed to support the normal operation of long connections when the number of long connections is large, which easily causes large resource consumption.

[0018] In addition, the substation connection process sets an intermediate medium (edge computing device), and a large number of substation devices do not need to be directly connected to the Internet of Things platform. Because a plurality of edge computing devices are set, the number of substation devices connected to one edge computing device is not large, and effective TCP short connection can be performed. Similarly, the number of edge computing devices connected to the Internet of Things platform is small, and effective TCP short connection can also be performed, thereby avoiding the problem of slow data processing caused by the same device connecting too many TCP short connection devices. BRIEF DESCRIPTION OF DRAWINGS

[0019] Some embodiments of the present disclosure will be described below with reference to the accompanying drawings, in which:

[0020] Figure 1 is a flow chart of a substation connection method based on edge computing provided by an embodiment of the present application.

[0021] Figure 2 is a schematic diagram of the internal structure of a substation connection system based on edge computing provided by an embodiment of the present application.

[0022] Figure 3 is a schematic diagram of the internal structure of a substation connection device based on edge computing provided by an embodiment of the present application. DETAILED DESCRIPTION

[0023] Those skilled in the art should understand that the embodiments described below are only preferred embodiments of the present disclosure, and do not represent that the present disclosure can only be implemented by the preferred embodiments. The preferred embodiments are only used to explain the technical principles of the present disclosure, and are not used to limit the protection scope of the present disclosure. Based on the preferred embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor should fall within the protection scope of the present disclosure.

[0024] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent to such a process, method, article, or apparatus. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element.

[0025] The technical solutions provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0026] The embodiments of the present application also provide a substation connection method based on edge computing, as shown in Figure 1As shown, the method provided by the embodiment of the application mainly comprises the following steps:

[0027] In step 110, a connection relationship between the substation equipment, the edge computing server and the IoT platform is acquired, and based on the connection relationship, a WebSocket connection between the substation equipment and the edge computing server and a WebSocket connection between the edge computing server and the IoT platform are established.

[0028] It should be noted that the connection relationship includes a corresponding relationship between the substation equipment and the edge computing server and a corresponding relationship between the edge computing server and the IoT platform.

[0029] In step 120, after the WebSocket connection is established, the edge computing server runs a preset test program; meanwhile, the substation equipment and the IoT platform start a TCP short connection with the edge computing server to listen to and acquire program information of the edge computing server and send the program information to the edge computing server.

[0030] It should be noted that the preset test program can be any feasible program that can be run.

[0031] The substation equipment and the IoT platform start a TCP short connection with the edge computing server to listen to and acquire program information of the edge computing server, and the specific process can be as follows:

[0032] Through the TCP short connection between the substation equipment and the edge computing server, a preset listening program in the edge computing server is called to acquire program information of the edge computing server; through the TCP short connection between the IoT platform and the edge computing server, the preset listening program in the edge computing server is called to acquire program information of the edge computing server.

[0033] In step 130, the edge computing server determines the substation equipment and the IoT platform whose TCP short connection is successful by reading the program information, and sends an instruction of reading the program information again to the substation equipment and the IoT platform whose TCP short connection fails, reads the uploaded program information again until it is determined that the TCP short connection of all the substation equipment and the IoT platform is successful.

[0034] The edge computing server determines the substation equipment and the IoT platform whose TCP short connection is successful by reading the program information, and the specific process can be as follows:

[0035] The edge computing server determines that the TCP short connection of the substation equipment and the IoT platform whose program information includes the preset test program is successful.

[0036] Step 140, after determining that all substation devices and the Internet of Things platform TCP short connections are successful, ending the preset test procedure and the WebSocket connection.

[0037] Step 150, through the TCP short connection, the WebSocket connection creation request or the WebSocket connection closing request transmission between the substation device, the edge computing server and the Internet of Things platform is carried out, and then the opening and closing of the WebSocket connection between the substation device, the edge computing server and the Internet of Things platform is controlled.

[0038] Step 160, when the WebSocket connection is started and there is data transmission, whether the data is received is fed back through the TCP short connection, and then the data is transmitted in turn.

[0039] This step can be specifically:

[0040] When the WebSocket connection is started and there is data transmission:

[0041] S1: The data transmission party sends a data transmission request to the data receiving party through the TCP short connection, and sends a data transmission to the data receiving party through the WebSocket connection.

[0042] S2: When the data receiving party returns the data has been received feedback through the TCP short connection, S1-S2 is cycled until all data transmission is completed.

[0043] It should be noted that the data transmission party can be any one of the substation device, the edge computing server and the Internet of Things platform. The data receiving party can be any one of the substation device, the edge computing server and the Internet of Things platform.

[0044] In addition, Figure 2 A substation connection system based on edge computing is provided for the embodiment of the application. As shown in Figure 2 The system provided by the embodiment of the application mainly comprises: a substation device 100, an edge computing server 200, an Internet of Things platform 300, an establishment module 210, a running module 220, and a TCP short connection module 230.

[0045] The establishment module 210 is configured to obtain a connection relationship between the substation device 100, the edge computing server 200 and the Internet of Things platform 300, and establish a WebSocket connection between the substation device 100 and the edge computing server 200 and a WebSocket connection between the edge computing server 200 and the Internet of Things platform 300 based on the connection relationship.

[0046] It should be noted that the establishing module 210 can be any feasible component capable of obtaining the connection relationship and then establishing the WebSocket connection.

[0047] The running module 220 is arranged in the edge computing server 200, and is configured to control the edge computing server 200 to run the preset test program after the WebSocket connection is established.

[0048] It should be noted that the running module 220 can be any feasible component capable of controlling the edge computing server 200 to run the preset test program.

[0049] The TCP short connection module 230 is arranged in the substation device 100, the edge computing server 200 and the Internet of Things platform 300, and is configured to control the substation device 100 and the Internet of Things platform 300 to start the TCP short connection between the substation device 100 and the edge computing server 200, to listen to and obtain the program information run by the edge computing server 200, and to send the program information to the edge computing server 200.

[0050] The edge computing server 200 is configured to determine the substation device 100 and the Internet of Things platform 300 whose TCP short connection is successful by reading the program information, and send an instruction of reading the uploaded program information again to the substation device 100 and the Internet of Things platform 300 whose TCP short connection fails, read the uploaded program information again until it is determined that all the substation devices 100 and the Internet of Things platforms 300 whose TCP short connection is successful, and end the preset test program and the WebSocket connection after it is determined that all the substation devices 100 and the Internet of Things platforms 300 whose TCP short connection is successful.

[0051] The edge computing server 200 includes a determining unit configured to control the edge computing server 200 to read the program information and determine that the TCP short connection of the substation device 100 and the Internet of Things platform 300 whose program information includes the preset test program is successful.

[0052] The TCP short connection module 230 is further configured to perform the transmission of the WebSocket connection creation request or the WebSocket connection closing request between the substation device 100, the edge computing server 200 and the Internet of Things platform 300 through the TCP short connection, and then control the opening and closing of the WebSocket connection between the substation device 100, the edge computing server 200 and the Internet of Things platform 300; when the WebSocket connection is started and there is data transmission, perform the feedback transmission of whether the data is received through the TCP short connection, and then transmit the data in sequence.

[0053] The TCP short connection module 230 further includes a preset listening program calling unit configured to call, through a TCP short connection between the substation device 100 and the edge computing server 200, a preset listening program in the edge computing server 200 to obtain program information running on the edge computing server 200; and call, through a TCP short connection between the Internet of Things platform 300 and the edge computing server 200, the preset listening program in the edge computing server 200 to obtain the program information running on the edge computing server 200.

[0054] The TCP short connection module 230 further includes a sequential transmission unit configured to, when the WebSocket connection is started and there is data transmission, control a data transmission side to send a data transmission request to a data receiving side through a TCP short connection and send a piece of transmission data to the data receiving side through the WebSocket connection; when it is received through the TCP short connection that the data receiving side returns a feedback that the data has been received, send the data transmission request again until all the data transmission is completed.

[0055] The above is a method embodiment in the present application. Based on the same inventive concept, the present application embodiment further provides a substation connection device based on edge computing. As shown in Figure 3 The device includes a processor and a memory having executable code stored thereon, which, when executed, causes the processor to perform a substation connection method based on edge computing as described in one of the above embodiments.

[0056] Specifically, the server end acquires the connection relationship between the substation equipment, the edge computing server and the Internet of Things platform, establishes the WebSocket connection between the substation equipment and the edge computing server and the WebSocket connection between the edge computing server and the Internet of Things platform based on the connection relationship; after the WebSocket connection is established, the edge computing server runs a preset test program; at the same time, the substation equipment and the Internet of Things platform start a TCP short connection with the edge computing server to listen to and obtain the program information of the edge computing server, and send the program information to the edge computing server; the edge computing server determines the substation equipment and the Internet of Things platform whose TCP short connection is successful by reading the program information, and sends a read program information instruction again to the substation equipment and the Internet of Things platform whose TCP short connection fails, reads the uploaded program information again until it is determined that all the substation equipment and the Internet of Things platform whose TCP short connection is successful; after it is determined that all the substation equipment and the Internet of Things platform whose TCP short connection is successful, the preset test program and the WebSocket connection are ended; the transmission of the WebSocket connection creation request or the WebSocket connection closing request between the substation equipment, the edge computing server and the Internet of Things platform is performed through the TCP short connection, and then the opening and closing of the WebSocket connection between the substation equipment, the edge computing server and the Internet of Things platform are controlled; when the WebSocket connection is started and there is data transmission, whether the data is received is fed back through the TCP short connection, and then the data is transmitted in turn.

[0057] In addition, the embodiment of the present application further provides a nonvolatile computer storage medium, which stores executable instructions, and when the executable instructions are executed, a substation connection method based on edge computing is realized.

[0058] So far, the technical solutions of the present disclosure have been described in combination with the foregoing embodiments, but those skilled in the art can easily understand that the protection scope of the present disclosure is not limited to these specific embodiments. Without deviating from the technical principles of the present disclosure, those skilled in the art can split and combine the technical solutions in the above-mentioned embodiments, or make equivalent changes or replacements to related technical features, and any changes, equivalent replacements, improvements, etc. made within the technical concept and technical principles of the present disclosure will fall within the protection scope of the present disclosure.

Claims

1. A substation connection method based on edge computing, characterized by, The method comprises: obtaining the connection relationship between the substation equipment, the edge computing server and the Internet of Things platform, and establishing the WebSocket connection between the substation equipment and the edge computing server and the WebSocket connection between the edge computing server and the Internet of Things platform based on the connection relationship; after the WebSocket connection is established, the edge computing server runs a preset test program; meanwhile, the substation equipment and the Internet of Things platform start a TCP short connection with the edge computing server to listen to and obtain the program information run by the edge computing server, and send the program information to the edge computing server; the edge computing server determines the substation equipment and the Internet of Things platform whose TCP short connection is successful by reading the program information, and sends a re-reading program information instruction to the substation equipment and the Internet of Things platform whose TCP short connection fails, re-reads the uploaded program information, and determines that all the substation equipment and the Internet of Things platform whose TCP short connection is successful; after it is determined that all the substation equipment and the Internet of Things platform whose TCP short connection is successful, the preset test program and the WebSocket connection are ended; the transmission of the WebSocket connection creation request or the WebSocket connection closing request between the substation equipment, the edge computing server and the Internet of Things platform is performed through the TCP short connection, so as to control the opening and closing of the WebSocket connection between the substation equipment, the edge computing server and the Internet of Things platform; when the WebSocket connection is started and there is data transmission, the feedback transmission of whether the data is received is performed through the TCP short connection, and then the data is transmitted in turn.

2. The edge-computing based substation connection method according to claim 1, characterized in that, The edge computing server determines the substation equipment and the Internet of Things platform whose TCP short connection is successful by reading the program information, and comprises: The edge computing server determines that the substation equipment and the Internet of Things platform whose TCP short connection is successful in the program information including the preset test program.

3. The edge-computing based substation connection method according to claim 1, characterized in that, The substation equipment and the Internet of Things platform start a TCP short connection with the edge computing server to listen to and obtain the program information run by the edge computing server, and comprises: Through the TCP short connection between the substation equipment and the edge computing server, a preset listening program in the edge computing server is called to obtain the program information run by the edge computing server; Through the TCP short connection between the Internet of Things platform and the edge computing server, a preset listening program in the edge computing server is called to obtain the program information run by the edge computing server.

4. The edge-computing-based substation connection method according to claim 1, characterized by, When the WebSocket connection is started and there is data transmission, the feedback transmission of whether the data is received is performed through the TCP short connection, and then the data is transmitted in turn, and comprises: When the WebSocket connection is started and there is data transmission: S1: the data transmission party sends a data transmission request to the data receiving party through the TCP short connection, and sends a data transmission to the data receiving party through the WebSocket connection; S2: when the data receiving party returns a data received feedback through the TCP short connection, S1-S2 are cycled until all the data transmission is completed.

5. An edge-computing based substation connectivity system, characterized by, The system comprises: The system comprises: The running module is arranged in the edge computing server and is configured to control the edge computing server to run the preset test program after the WebSocket connection is established. The TCP short connection module is arranged in the substation equipment, the edge computing server and the Internet of Things platform, and is configured to control the substation equipment and the Internet of Things platform to start a TCP short connection between the edge computing server, to listen to and obtain program information run by the edge computing server, and to send the program information to the edge computing server. The edge computing server is configured to determine the substation equipment and the Internet of Things platform whose TCP short connection is successful by reading the program information, to send an instruction of reading the uploaded program information again to the substation equipment and the Internet of Things platform whose TCP short connection fails, to read the uploaded program information again until it is determined that the TCP short connection of all the substation equipment and the Internet of Things platform is successful, and to end the preset test program and the WebSocket connection after it is determined that the TCP short connection of all the substation equipment and the Internet of Things platform is successful. The TCP short connection module is further configured to perform the transmission of a WebSocket connection creation request or a WebSocket connection closing request between the substation equipment, the edge computing server and the Internet of Things platform through the TCP short connection, to control the opening and closing of the WebSocket connection between the substation equipment, the edge computing server and the Internet of Things platform, and to perform the feedback transmission of whether data is received when the WebSocket connection is started and data transmission exists, and to sequentially transmit the data.

6. The edge-computing-based substation connection system of claim 5, wherein, The edge computing server comprises a determination unit, The TCP short connection module comprises a calling listening unit, 7. The edge-computing-based substation connection system of claim 5, wherein, The TCP short connection module comprises a calling listening unit, The TCP short connection module comprises a sequential transmission unit, The device comprises:

8. The edge-computing-based substation connection system of claim 5, wherein, A processor; ​ 9. An edge-computing based substation connecting device, characterized by ​ ​ and a memory having stored thereon executable code that, when executed, is to cause the processor to perform a substation connection method based on edge computing as claimed in any of claims 1-4.

10. A non-transitory computer storage medium, comprising, a computer readable medium having stored thereon computer instructions that, when executed, implement a substation connection method based on edge computing as claimed in any of claims 1-4.

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