Internet-of-things management method and system based on III-type special transformer terminal, and terminal

Abstract

The invention belongs to the field of power equipment, and particularly relates to an Internet of Things management method and system based on a type III special transformer terminal and the corresponding type III special transformer terminal. According to the method, a two-stage MQTT message protocol is adopted to realize communication between an Internet of Things management platform of a cloud end and a local III-type special transformer terminal and power equipment, and the method supports issuing a management instruction to the local through the cloud end and realizes bidirectional data transmission. According to the scheme, the system comprises a cloud server and an III-type special transformer terminal; an Internet of Things management platform and a first MQTT server run in the cloud server; an iot app, a second MQTT server, a data center app and a plurality of service app corresponding to different functions run in the III type special transformer terminal; and the Internet of Things management platform, the iot app and each service app realize message publishing and subscription through the MQTT server. According to the invention, the problems of incapability of realizing automatic management based on the Internet of Things, low management efficiency and high operation and maintenance cost of the existing transformer area equipment are solved.

Description

Technical Field

[0001] The present invention belongs to the field of electric power equipment, and specifically relates to an Internet of Things management method and system based on a Type III dedicated transformer terminal, and a corresponding Type III dedicated transformer terminal. Background Art

[0002] The Type III dedicated transformer terminal is connected to the main station upward and electrically connected to a large number of power equipment in the substation area downward. The existing Type III dedicated transformer terminal usually only has data collection functions, which makes it difficult to manage the connected power equipment. Most equipment management tasks still need to rely on technical personnel to handle on-site, and the management efficiency is low. In addition, when faced with a large number of new equipment in the substation area, it is difficult for the existing Type III dedicated transformer terminal to expand its functions.

[0003] The current Type III dedicated transformer terminals are all equipped with 4G communication modules and have the hardware foundation for IoT management. Therefore, if the Type III dedicated transformer terminals in the substation area can be managed through IoT technology, it will help reduce labor costs. However, the existing technology lacks a solution for using Type III dedicated transformer terminals to achieve IoT management of devices in the substation area. Summary of the invention

[0004] In order to solve the problem that the existing substation equipment cannot realize automatic management based on the Internet of Things, has low management efficiency and high operation and maintenance costs, the present invention provides an Internet of Things management method and system based on Type III special transformer terminals, and its corresponding Type III special transformer terminals.

[0005] The technical solution provided by the present invention is:

[0006] A method for managing IoT based on a type III dedicated transformer terminal includes the following steps:

[0007] Create an IoT management platform for power systems in a device management master station.

[0008] An iot app is installed in each Type III dedicated transformer terminal. The iot app is used to implement cross-device data and command interaction between the IoT management platform and the Type III dedicated transformer terminal through the MQTT communication protocol; and to implement data and command interaction within the device between different service apps within the Type III dedicated transformer terminal through the MQTT communication protocol.

[0009] After each service app in the Type III dedicated transformer terminal completes registration in the IoT management platform through the IoT app, the subscription rules between the IoT app and the IoT management platform and the subscription rules between each service app and the IoT app are initialized.

[0010] After the iot app obtains the message published by the IoT management platform through the subscription service, it forwards the message to each service app in the MQTT server in the Type III dedicated transformer terminal. After the service app subscribed to the corresponding topic receives the corresponding message, it executes the instruction and organizes the corresponding response message.

[0011] As a further improvement of the present invention, the device management master station includes an IoT management platform and a first MQTT server. The IoT management platform and the IoT apps in each type III dedicated transformer terminal realize message publishing and subscription through the first MQTT server.

[0012] As a further improvement of the present invention, the type III dedicated transformer terminal includes an iot app, a second MQTT server, a data center app, and multiple service apps corresponding to different functions. Among them, the iot app and each service app realize message publishing and subscription through the second MQTT server. The data center app is used to store the data generated by the type III dedicated transformer terminal, as well as the registration information of the service app and the content of the uploaded message.

[0013] As a further improvement of the present invention, the registration process of each service app in any type III dedicated transformer terminal is as follows:

[0014] S1: The service app sends registration information to the iot app through the second MQTT server.

[0015] The registration information includes the object models of all devices associated with the current service app.

[0016] S2: The iot app sends the registration information to the IoT management platform through the first MQTT server.

[0017] S3: The IoT management platform reviews the registration request and generates a registration result, and returns the registration result to the IoT app through the first MQTT server.

[0018] S4: After receiving the registration result, the iot app returns the registration result to the service app through the second MQTT server.

[0019] Among them, when any service app is successfully registered, the first MQTT server will also synchronize the registration information to the data center app for recording.

[0020] As a further improvement of the present invention, the process of the IoT management platform sending data or instructions to each service app is as follows:

[0021] S01: The IoT management platform determines the Type III dedicated terminal to which the object of the sent data or instruction belongs based on the registration information; and then publishes a message related to the data or instruction through the first MQTT server.

[0022] S02: After the IoT app corresponding to the Type III dedicated transformer terminal obtains the message through subscription information and decodes the data or instructions, it forwards the corresponding message on the second MQTT server.

[0023] S03: After the service app obtains the message forwarded by the IoT app through subscription information, it decodes the content of the data or instruction, and then completes the reception of the data or instruction.

[0024] As a further improvement of the present invention, after the service app receives the call for testing command issued by the IoT management platform, the process of organizing and uploading the message is as follows:

[0025] S001: The service app sends a data request to the data center app through the second MQTT server according to the call command.

[0026] S002: After receiving the data request, the data center app sends the corresponding data to the service app through the second MQTT server.

[0027] S003: After receiving the required data, the service app organizes the corresponding response message, and then sends it to the iot app through the second MQTT server.

[0028] S004: After receiving the response message, the iot app forwards the corresponding message through the first MQTT server.

[0029] S005: After receiving the forwarded message, the IoT management platform decodes the content of the response message, and then completes the reception of the response message.

[0030] As a further improvement of the present invention, the process of realizing information interaction between the IoT management platform and the IoT app through the first MQTT server is as follows:

[0031] One of the IoT management platform and the IoT app publishes an encoded message through the first MQTT server; the other party receives the message by subscribing to the topic and obtains the corresponding information after decoding the message.

[0032] The encoded message published on the first MQTT server includes characteristic information of the corresponding data sender and data receiver.

[0033] As a further improvement of the present invention, the process of implementing information interaction between the service app and the iot app through the second MQTT server is as follows:

[0034] One of the service app and the iot app publishes an encoded message through the second MQTT server; the other party receives the message by subscribing to the topic and obtains the corresponding information after decoding the message.

[0035] The encoded message published on the second MQTT server includes characteristic information of the corresponding data sender and data receiver.

[0036] The present invention also includes an Internet of Things management system based on a Type III dedicated transformer terminal, which includes a cloud server and a Type III dedicated transformer terminal.

[0037] An IoT management platform and a first MQTT server are running in the cloud server. The IoT management platform and the IoT apps in each Type III dedicated transformer terminal realize message publishing and subscription through the first MQTT server.

[0038] The Type III dedicated transformer terminal runs an iot app, a second MQTT server, a data center app, and multiple service apps with different functions. The iot app and each service app publish and subscribe messages through the second MQTT server. The data center app is used to store the data generated by the Type III dedicated transformer terminal, as well as the registration information of the service app and the content of the uploaded message.

[0039] The present invention also includes a type III dedicated transformer terminal, which runs an iot app, a second MQTT server, a data center app, and multiple service apps corresponding to different functions, and communicates with a cloud server. Based on the aforementioned architecture of the IoT management system based on the type III dedicated transformer terminal, IoT management of the subordinate power equipment is achieved through the cloud.

[0040] The technical solution provided by the present invention has the following beneficial effects:

[0041] The present invention provides an IoT management method based on a Type III dedicated transformer terminal, which uses a two-level MQTT message protocol to achieve communication between a cloud IoT management platform and a local Type III dedicated transformer terminal and power equipment, and supports issuing management instructions to the local area through the cloud, as well as achieving data transmission. Using the solution of the present invention, operation and maintenance technicians can remotely monitor and control the operating status of a large number of local power equipment, thereby reducing the workload of technicians and improving the management efficiency of the substation.

[0042] The solution of the invention can be implemented using the existing Type III dedicated transformer terminal without deploying new hardware equipment. In actual application, the solution also supports adding new functions according to the application scenario; for the new functions, it is only necessary to readjust the information publishing topic of the MQTT server and the subscription rules between the service apps. Therefore, the solution provided by the present invention can not only greatly improve the management efficiency of the substation area, but also significantly reduce the application cost of the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a flowchart of the steps of the Internet of Things management method based on the Type III dedicated transformer terminal provided in Example 1 of the present invention.

[0044] Figure 2 This is an architecture diagram of the Internet of Things management system based on Type III dedicated transformer terminals created in Examples 1 and 2 of the present invention.

[0045] Figure 3 This is a registration flow chart of each service app in the Type III dedicated transformer terminal in Example 1 of the present invention.

[0046] Figure 4 The present invention is a flowchart of the steps for the IoT management platform in Example 1 of the present invention to perform a data call test on a Type III dedicated transformer terminal.

[0047] Figure 5 This is a flow chart of the steps for each service app to upload a message in Example 1 of the present invention. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] Example 1

[0050] This embodiment provides an IoT management method based on a Type III dedicated transformer terminal. The method uses a two-level MQTT message protocol to achieve communication between the IoT management platform in the cloud and the local Type III dedicated transformer terminal and power equipment, and supports issuing management instructions to the local through the cloud, as well as data transmission. Using the solution of the present invention, operation and maintenance technicians can remotely monitor and control the operating status of a large number of local power equipment, thereby reducing the workload of technicians and improving the management efficiency of the substation.

[0051] Specifically, Figure 1 As shown, the IoT management method based on the Type III dedicated terminal provided in this embodiment includes the following steps:

[0052] 1. Create an IoT management platform for the power system in a device management master station.

[0053] The device management master station in this embodiment is a background server located in the cloud and used to monitor and control local devices. The server of the device management master station includes an IoT management platform and a first MQTT server. The IoT management platform and the IoT apps in each Type III dedicated transformer terminal publish and subscribe messages through the first MQTT server.

[0054] 2. Install an iot app in each Type III dedicated transformer terminal. The iot app is used to implement cross-device data and command interaction between the IoT management platform and the Type III dedicated transformer terminal through the MQTT communication protocol; and to implement data and command interaction within the device between different service apps within the Type III dedicated transformer terminal through the MQTT communication protocol.

[0055] In this embodiment, based on the needs of the IoT management function, this embodiment upgrades the functions of the Type III special transformer terminal. Unlike the traditional Type III special transformer terminal, this embodiment designs an iot app inside the Type III special transformer terminal. In order to minimize the amount of development, the iotapp designed and implemented in this embodiment needs to have the functions of processing and distributing messages from the IoT management platform, as well as regularly querying the data reporting content. In addition, in order to realize information interaction between the various service apps within the Type III special transformer terminal, this embodiment also adds a second MQTT server to the Type III special transformer terminal. In the Type III special transformer terminal, the message flow between service apps is realized by publishing messages and subscribing to topics in the second MQTT server.

[0056] Specifically, Figure 2 As shown, in this embodiment, the type III dedicated transformer terminal includes an iot app, a second MQTT server, a data center app, and multiple service apps corresponding to different functions. Among them, the iot app and each service app realize message publishing and subscription through the second MQTT server. The data center app is used to store the data generated by the type III dedicated transformer terminal, as well as the registration information of the service app and the content of the uploaded message.

[0057] 3. After each service app in the Type III dedicated transformer terminal completes registration in the IoT management platform through the IoT app, the subscription rules between the IoT app and the IoT management platform and the subscription rules between each service app and the IoT app are initialized.

[0058] In the scheme of this embodiment, in order to realize the transmission of different types of data and instructions, this embodiment pre-designs the rules for publishing and receiving messages between the iot app and the IoT management platform, and between the iot app and each service app. For example, it is pre-specified in which topic the specified instructions in the server should be published, and which topics the various clients receiving the instructions should subscribe to in order to accurately receive the corresponding instructions. In addition, during the initialization process, the data format for message publishing should also be defined. In this embodiment, the instructions and message data are transmitted using a Json format file. The message of the Json file includes a name and a value; wherein, "name" refers to the subject type of the message transmitted; "value" refers to the actual content of the message transmitted, and the data contained in the value is one or any combination of a string, an array, a value, an object, and empty data.

[0059] In the solution of this embodiment, one of the IoT management platform and the IoT app publishes an encoded message through the first MQTT server; the other party receives the message by subscribing to the topic and obtains the corresponding information after decoding the message. The encoded message published on the first MQTT server contains the characteristic information of the corresponding data sender and data receiver.

[0060] One of the service app and the iot app publishes an encoded message through the second MQTT server; the other party receives the message by subscribing to the topic and obtains the corresponding information after decoding the message. The encoded message published on the second MQTT server contains the characteristic information of the corresponding data sender and data receiver.

[0061] In this embodiment, the publisher publishes messages to one or more topics, and the subscribers can subscribe to these topics to receive related messages. Generally speaking, in the first MQTT server, the iot app can subscribe to all topics where the IoT management platform publishes messages. In the second MQTT server, only registered service apps are allowed to subscribe to messages published by the iot app. Based on this design, when the Type III dedicated transformer terminal needs to add new functions or services, the new service app can be registered with the IoT management platform and the initialization settings can be completed.

[0062] In detail, in the solution of this embodiment, Figure 3 As shown in the figure, the registration process of each service app in any Type III dedicated transformer terminal is as follows:

[0063] S1: The service app sends registration information to the iot app through the second MQTT server.

[0064] The registration information includes the physical models of all devices associated with the current service app; for example, in a service app for remotely switching certain devices, the registration request should include the port numbers of all relays targeted by the corresponding control instructions.

[0065] S2: The iot app sends the registration information to the IoT management platform through the first MQTT server.

[0066] S3: The IoT management platform generates a registration result after reviewing the registration request, and returns the registration result to the IoT app through the first MQTT server. In this embodiment, the registration request of the service app is manually reviewed by the administrator of the IoT management platform.

[0067] S4: After receiving the registration result, the iot app returns the registration result to the service app through the second MQTT server.

[0068] Among them, when any service app is successfully registered, the first MQTT server will also synchronize the registration information to the data center app for recording.

[0069] 4. After the iot app obtains the message published by the IoT management platform through the subscription service, it forwards the message to each service app in the MQTT server in the Type III dedicated transformer terminal. After the service app subscribed to the corresponding topic receives the corresponding message, it executes the instruction and organizes the corresponding response message.

[0070] In the solution of this embodiment, the device management master station and the type III dedicated transformer terminal realize the interaction of data and instructions through the IoT management platform. The data call function of the traditional type III dedicated transformer terminal can be completed by using this architecture. Figure 4 As shown, the data call test process includes two stages: in the first stage, the IoT management platform sends a call test instruction to each service app; in the second stage, each service app organizes a response message according to the instruction and uploads it to the IoT management platform.

[0071] The process of the IoT management platform sending data or instructions to each service app is as follows:

[0072] S01: The IoT management platform determines the Type III dedicated terminal to which the object of the sent data or instruction belongs based on the registration information; and then publishes a message related to the data or instruction through the first MQTT server.

[0073] S02: After the IoT app corresponding to the Type III dedicated transformer terminal obtains the message through subscription information and decodes the data or instructions, it forwards the corresponding message on the second MQTT server.

[0074] S03: After the service app obtains the message forwarded by the IoT app through subscription information, it decodes the content of the data or instruction, and then completes the reception of the data or instruction.

[0075] When the service app receives the call command issued by the IoT management platform, the process of organizing and uploading the message is as follows:

[0076] S001: The service app sends a data request to the data center app through the second MQTT server according to the call command.

[0077] S002: After receiving the data request, the data center app sends the corresponding data to the service app through the second MQTT server.

[0078] S003: After receiving the required data, the service app organizes the corresponding response message; and then sends the response message to the iot app through the second MQTT server.

[0079] S004: After receiving the response message, the iot app forwards the corresponding message through the first MQTT server.

[0080] S005: After receiving the forwarded message, the IoT management platform decodes the content of the response message, and then completes the reception of the response message.

[0081] In this embodiment, if Figure 5 As shown in the figure, the data center app will actively upload messages containing device information in the area according to the preset rules. The IoT app will query the reporting flag of the data center app every 15 minutes. If there is a reporting flag, it will read the corresponding data reporting information and organize the reporting message to be sent to the IoT management platform. If the successfully registered app has reporting content, it will send the reporting flag and reporting information to the data center app for storage.

[0082] Example 2

[0083] Based on the solution of Example 1, this embodiment further provides an IoT management system based on a Type III dedicated terminal. The IoT management method based on a Type III dedicated terminal in Example 1 is implemented using the IoT management system of this embodiment. Figure 2 As shown, the Internet of Things management system based on the Type III dedicated transformer terminal includes a cloud server and a Type III dedicated transformer terminal.

[0084] An IoT management platform and a first MQTT server are running in the cloud server. The IoT management platform and the IoT apps in each Type III dedicated transformer terminal realize message publishing and subscription through the first MQTT server.

[0085] The Type III dedicated transformer terminal runs an iot app, a second MQTT server, a data center app, and multiple service apps with different functions. The iot app and each service app publish and subscribe messages through the second MQTT server. The data center app is used to store the data generated by the Type III dedicated transformer terminal, as well as the registration information of the service app and the content of the uploaded message.

[0086] Example 3

[0087] On the basis of Examples 1 and 2, this embodiment also includes a type III dedicated transformer terminal. The type III dedicated transformer terminal is the upgraded and improved type III dedicated transformer terminal in Example 1. The type III dedicated transformer terminal runs an iotapp, a second MQTT server, a data center app, and multiple service apps corresponding to different functions, and communicates with a cloud server. Based on the architecture of the IoT management system based on the type III dedicated transformer terminal in Example 1, IoT management of the subordinate power equipment is realized through the cloud.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for managing IoT based on a type III dedicated transformer terminal, characterized in that: It includes the following process: Create an IoT management platform for power systems in a device management master station; An iot app is installed in each type III dedicated transformer terminal; the iot app is used to implement cross-device data and command interaction between the IoT management platform and the type III dedicated transformer terminal through the MQTT communication protocol; and to implement data and command interaction within the device between different service apps within the type III dedicated transformer terminal through the MQTT communication protocol; After each service app in the Type III dedicated transformer terminal completes registration in the IoT management platform through the IoT app, the subscription rules between the IoT app and the IoT management platform and between each service app and the IoT app are initialized and set; After the iot app obtains the message published by the IoT management platform through the subscription service, it forwards the message to each service app in the MQTT server in the Type III dedicated transformer terminal. After the service app subscribed to the corresponding topic receives the corresponding message, it executes the instruction and organizes the corresponding response message.

2. The IoT management method based on type III dedicated transformer terminal according to claim 1, characterized in that: The device management master station includes an IoT management platform and a first MQTT server; the IoT management platform and the IoT apps in each Type III dedicated terminal publish and subscribe messages through the first MQTT server.

3. The IoT management method based on Type III dedicated transformer terminal according to claim 2, characterized in that: The type III dedicated transformer terminal includes an iot app, a second MQTT server, a data center app and multiple service apps corresponding to different functions; wherein, the iot app and each service app realize message publishing and subscription through the second MQTT server; the data center app is used to store the data generated by the type III dedicated transformer terminal, as well as the registration information of the service app and the content of the uploaded messages.

4. The IoT management method based on type III dedicated transformer terminal according to claim 3 is characterized in that: The registration process for each service app in any Type III dedicated transformer terminal is as follows: S1: The service app sends registration information to the iot app through the second MQTT server; The registration information includes the physical models of all devices associated with the current service app; S2: iotapp sends the registration information to the IoT management platform through the first MQTT server; S3: The IoT management platform reviews the registration request and generates a registration result, and returns the registration result to the IoT app through the first MQTT server; S4: After receiving the registration result, the iot app returns the registration result to the service app through the second MQTT server; Among them, when any service app is successfully registered, the first MQTT server will also synchronize the registration information to the data center app for recording.

5. The IoT management method based on type III dedicated transformer terminal according to claim 3 is characterized in that: The process of the IoT management platform sending data or instructions to each service app is as follows: S01: The IoT management platform determines the type III dedicated terminal to which the object of the sent data or instruction belongs according to the registration information; and then publishes a message related to the data or instruction through the first MQTT server; S02: After the iot app corresponding to the type III dedicated transformer terminal obtains the message through subscription information and decodes the data or instructions, it forwards the corresponding message to the second MQTT server; S03: After the service app obtains the message forwarded by the IoT app through subscription information, it decodes the content of the data or instruction, and then completes the reception of the data or instruction.

6. The IoT management method based on type III dedicated transformer terminal according to claim 5, characterized in that: After the service app receives the call command issued by the IoT management platform, the process of organizing and uploading the message is as follows: S001: The service app sends a data request to the data center app through the second MQTT server according to the call test instruction; S002: After the data center app receives the data request, it sends the corresponding data to the service app through the second MQTT server; S003: After receiving the required data, the service app organizes the corresponding response message and then sends it to the iot app through the second MQTT server; S004: After receiving the response message, the iot app forwards the corresponding message through the first MQTT server; S005: After receiving the forwarded message, the IoT management platform decodes the content of the response message, and then completes the reception of the response message.

7. The IoT management method based on type III dedicated transformer terminal according to claim 3, characterized in that: The process of information interaction between the IoT management platform and the IoT app through the first MQTT server is as follows: One of the IoT management platform and the IoT app publishes an encoded message through the first MQTT server; the other party receives the message by subscribing to the topic and obtains the corresponding information after decoding the message; The encoded message published on the first MQTT server includes characteristic information of the corresponding data sender and data receiver.

8. The IoT management method based on type III dedicated transformer terminal according to claim 3, characterized in that: The process of implementing information interaction between the service app and the iot app through the second MQTT server is as follows: One of the service app and the IoT app publishes an encoded message through the second MQTT server; the other party receives the message by subscribing to the topic and obtains the corresponding information after decoding the message; The encoded message published on the second MQTT server includes characteristic information of the corresponding data sender and data receiver.

9. An IoT management system based on a Type III special transformer terminal, characterized in that: It includes cloud servers and Type III dedicated transformer terminals; An IoT management platform and a first MQTT server are running in the cloud server; the IoT management platform and the IoT apps in each Type III dedicated transformer terminal publish and subscribe messages through the first MQTT server. The Type III dedicated transformer terminal runs an IoT app, a second MQTT server, a data center app and multiple service apps corresponding to different functions; wherein the IoT app and each service app publish and subscribe messages through the second MQTT server; the data center app is used to store the data generated by the Type III dedicated transformer terminal, as well as the registration information of the service app and the content of the uploaded messages.

10. A type III dedicated transformer terminal, characterized in that: An iot app, a second MQTT server, a data center app and multiple service apps corresponding to different functions run inside it; and it communicates with a cloud server; and then based on the architecture of the Internet of Things management system based on Type III dedicated transformer terminal as described in claim 9, the Internet of Things management of the subordinate power equipment is realized through the cloud.

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