Carrier networking information monitoring method based on carrier IP technology

Abstract

The embodiment of the invention discloses a carrier networking information monitoring method based on a carrier IP (Internet Protocol) technology, which belongs to the technical field of power grid communication, and comprises the following steps of: establishing an IP network system based on an Internet of Things gateway, a CCO (Control CO) control unit and STA (Station) equipment, performing conversion processing on an IP packet and a carrier data link layer frame by the IP network system, realizing IP registration and carrier networking communication of the equipment, and monitoring the carrier networking information of the equipment. A carrier networking information monitoring framework is designed by adopting a service-oriented micro-service architecture, and the carrier networking information monitoring framework performs data acquisition, real-time monitoring, unified management, intelligent alarm and fault location on an IP network system. Medium-voltage carrier communication IP networking is realized by applying logic port networking, an IP networking technology, a carrier channel time division multiplexing technology and the like, and the carrier rate is improved.

Description

Technical Field

[0001] The present application belongs to the field of power grid communication technology, and specifically, relates to a carrier networking information monitoring method based on carrier IP technology. Background Art

[0002] Power line carrier communication technology is a communication method exclusive to the power system. The transmission bandwidth and transmission distance of power line carrier technology can meet the needs of power distribution and utilization business. In the power system terminal communication access network, there are technical means such as optical fiber, wireless and power line carrier communication. Among them, optical fiber and wireless communication technologies can realize full-duplex communication and support TCP / IP protocol. Carrier communication technology adopts half-duplex communication mode due to factors such as shared channel restrictions.

[0003] As the communication network of the power system tends to be networked, the business carrying protocol is compatible with the network protocol and the question-and-answer protocol and is mainly based on the network protocol. However, the medium-voltage power line carrier is only applicable to the question-and-answer protocol and its application in the terminal communication access network is limited. This puts forward the IP demand for the medium-voltage power line carrier communication technology.

[0004] However, the IPization of carriers still faces several difficulties. First, power line carrier communication mainly uses the "phase-to-ground coupling" of power lines to transmit data, forming a shared channel and mainly adopting a question-and-answer polling communication mechanism. If the carrier is to be IPized, it is necessary to change the existing communication mechanism to achieve full-duplex communication on the shared channel; secondly, the current carrier network basically uses channel carrier sensing technology to avoid carrier conflicts in shared channels, and still mainly relies on traditional serial communication. It has failed to achieve true IPization and plug-and-play, resulting in low efficiency in large-scale networking. At the same time, the polling mechanism leads to a long time to traverse the carrier network or a small scale of the carrier network; therefore, service real-time performance is a problem that the carrier network IPization networking needs to face. Summary of the invention

[0005] In order to solve the above problems and technical defects, the embodiment of the present application adopts the following technical solution, a carrier networking information monitoring method based on carrier IP technology, including:

[0006] An IP network system is built based on IoT gateways, CCO control units and STA devices. The IP network system converts IP packets and carrier data link layer frames to achieve IP registration of devices and carrier networking communication.

[0007] The carrier networking information monitoring framework is designed using a service-oriented microservice architecture. The carrier networking information monitoring framework performs device access and data collection on the IP network system. The functional components of the basic service layer in the carrier networking information monitoring framework include: data cache, device control, message bus, and service bus.

[0008] Furthermore, in the IP network system, the data transmitted between the IoT gateway and the CCO control unit are IP packets, and the carrier data link layer frames are transmitted between the CCO control unit and the STA equipment through the carrier communication network. The virtual data link layer in the CCO control unit converts and processes the IP packets and the carrier data link layer frames.

[0009] Furthermore, the CCO control unit is provided with a carrier IP software architecture, which includes: a main control unit and an HPLC carrier communication unit;

[0010] The main control unit is used to establish an Ethernet communication network, send and receive IP packets in the IP network system and process them;

[0011] The HPLC carrier communication unit is used to convert the IP packets processed by the main control unit into carrier frames and send them to the target STA device, or convert the carrier frames sent by the STA device into IP packets and send them to the main control unit.

[0012] Furthermore, the application software layer of the CCO control unit is constructed with software middleware and a unified data information model;

[0013] The software middleware first receives various protocols of each STA device connected to the CCO control unit, and then parses and adapts the device type of each STA device respectively;

[0014] The unified data information model shields the protocol details of each STA device in the target area according to the needs, generates a unified plan for the low-voltage area device protocol, and provides unified data to the CCO control unit according to the unified plan for the device protocol.

[0015] Still further, the IP-based network system uses an encryption scheme to encrypt and protect data during the IP registration process, and uses a combination of dual keys and single keys to achieve two-way authentication of the mobile node and the network;

[0016] An encryption authentication protocol is constructed based on the AAA architecture protocol. When the functional entity MN registers in the home domain network, the functional entity AAAH and the functional entity MN use each other's public key certificates to complete the registration through the functional entity HA based on the encryption authentication protocol, and transfer the session key;

[0017] When the functional entity MN enters the external network for the first time to authenticate the external network, the functional entity AAAH authenticates the functional entity MN;

[0018] After the authentication is passed, the functional entity MN moves in the same external domain network, and the functional entity AAAF obtains information to verify the certificate of the functional entity MN and authenticates the functional entity MN.

[0019] Preferably, the service bus performs status monitoring, discovery, registration, query and service invocation on the running status of all service components and business applications on the carrier networking information monitoring framework.

[0020] Furthermore, the message bus is a cross-process communication mechanism used to transmit messages between upstream and downstream. After obtaining the message data, it forwards the message to the target terminal for processing the message according to preset routing rules, helping all components to send, cache, distribute, route and receive messages.

[0021] Furthermore, the device control issues control commands or operations to the IoT gateway, CCO control unit and STA devices in the IP network system, and simplifies communication with the devices by calling the interface of the acquisition application in a universal and standardized manner.

[0022] Furthermore, the data cache provides a centralized persistence tool for the collected data. The collection application caches the device and sensor data in the device by calling the data cache service, and the cached data is sent to the IoT management platform or other external modules through external carrier networking.

[0023] Compared with the prior art, the beneficial effects of the embodiments of the present application are:

[0024] This application realizes a unified network programming interface through the IPization of the communication protocol, and then provides unified power business data to the distribution transformer terminal through a unified protocol at the data layer. How to use software middleware technology to design a unified data model that is intelligently adapted to various types of power equipment in the substation area, and realize the function of providing unified data to the distribution transformer terminal, based on the unified data design model of the Internet of Things, carry out real-time comprehensive monitoring of carrier networking information, aggregate it to the Internet of Things platform for unified management, and conduct intelligent alarms and fault location in a timely manner, improve the on-site network operation perception capability, and propose networked high-speed carrier equipment for IP networking, realize application logical port networking, IP networking technology, and carrier channel time division multiplexing technology to realize medium-voltage carrier communication IP networking and improve the carrier rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the attached picture:

[0026] Figure 1 A schematic diagram of the method steps of an embodiment of the present application;

[0027] Figure 2 A data flow diagram of an embodiment of the present application;

[0028] Figure 3 This is a diagram of the carrier IP software architecture of an embodiment of the present application;

[0029] Figure 4 A unified schematic diagram of the target area device protocol of an embodiment of the present application;

[0030] Figure 5 This is a carrier networking information monitoring framework diagram of an embodiment of the present application;

[0031] Figure 6 This is a flow chart of the main functions of the service bus of an embodiment of the present application;

[0032] Figure 7 A schematic diagram of a message bus according to an embodiment of the present application;

[0033] Figure 8 This is a flow chart of device control commands in an embodiment of the present application;

[0034] Fig. 9 This is a flow chart of the data cache component of an embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Example

[0037] like Figure 1 As shown, a carrier networking information monitoring method based on carrier IP technology includes:

[0038] An IP network system is built based on IoT gateways, CCO control units and STA devices. The IP network system converts IP packets and carrier data link layer frames to achieve IP registration of devices and carrier networking communication.

[0039] Multiple carrier converters can be connected to the IoT agent with a carrier module. One carrier converter is connected to multiple new type II concentrators. The new type II concentrator is connected to multiple electricity meters to realize platform registration of all the downstream electricity meter devices.

[0040] It is also possible to connect the TTU with carrier unit to multiple new type II concentrators equipped with STA carrier units, and each new type II concentrator is connected to multiple meters;

[0041] The IoT agent can also be connected to multiple Type I concentrators installed with CCO, each Type I concentrator is connected to multiple Type II collectors installed with STA, and each Type II collector is connected to multiple electricity meters.

[0042] The IoT gateway and the CCO control unit are connected using UART, and the IoT gateway establishes network communication with the CCO control unit through the TCP / IP protocol;

[0043] The CCO control unit and the STA device are connected by power lines, and network communication is established between the CCO control unit and the STA device through HPLC carrier technology;

[0044] The interface layers in the IP network system include the data link layer and the physical layer. The network layer adopts the IPv4 standard protocol, the transport layer adopts the standard UDP protocol, and the application layer realizes data unification by carrying data through the application data segment.

[0045] Data flow in IP network system Figure 2 As shown in the figure, during the communication process of the IP network system, the data transmitted between the IoT gateway and the CCO control unit is an IP packet, and the carrier data link layer frame is transmitted between the CCO control unit and the STA device through the carrier communication network. The virtual data link layer in the CCO control unit converts and processes the IP packet and the carrier data link layer frame.

[0046] Carrier IP software architecture Figure 3 As shown, the CO control unit is provided with a carrier IP software architecture, which includes: a main control unit and an HPLC carrier communication unit;

[0047] The main control unit is used to establish an Ethernet communication network, send and receive IP packets in the IP network system and process them;

[0048] The HPLC carrier communication unit is used to convert the IP packets processed by the main control unit into carrier frames and send them to the target STA device, or convert the carrier frames sent by the STA device into IP packets and send them to the main control unit.

[0049] The unified diagram of the target area device protocol is as follows Figure 4 As shown, the application software layer of the CCO control unit is constructed with software middleware and a unified data information model;

[0050] The software middleware first receives various protocols of each STA device connected to the CCO control unit, and then parses and adapts the device type of each STA device respectively;

[0051] The unified data information model shields the protocol details of each STA device in the target area according to the needs, generates a unified plan for the low-voltage area device protocol, and provides unified data to the CCO control unit according to the unified plan for the device protocol.

[0052] The IP network system uses encryption schemes to encrypt and protect data during the IP registration process, and adopts a combination of dual-key and single-key schemes to achieve two-way authentication between mobile nodes and networks;

[0053] An encryption authentication protocol is constructed based on the AAA architecture protocol. When the function entity MN is registered in the home domain network based on the encryption authentication protocol, the function entity AAAH and the function entity MN use each other's public key certificates to complete the registration through the function entity HA and transfer the session key.

[0054] When the functional entity MN enters the external network for the first time and needs to authenticate to the external network, the functional entity AAAH authenticates the functional entity MN;

[0055] After the authentication is passed, the functional entity MN moves in the same external domain network, and the functional entity AAAF obtains information to verify the certificate of the functional entity MN and authenticates the functional entity MN.

[0056] The AAA architecture protocol is an architecture based on the combination of three technologies: authentication, authorization, and accounting. MN is a mobile node functional entity, AAAH is a home agent functional entity, and AAAF is a foreign agent functional entity.

[0057] Framework such as Figure 5 As shown in the figure, a service-oriented microservice architecture is used to design a carrier network information monitoring framework, which performs data collection, real-time monitoring, unified management, intelligent alarm and fault location on the IP network system.

[0058] The carrier networking information monitoring framework can dynamically migrate and run reliably on different hardware platforms, is compatible with multiple programming languages, realizes instant change and on-demand iteration of edge application functions, is used for multi-type device access and message forwarding, provides industrial field bus protocol and standard compatibility, and realizes interconnection and interoperability.

[0059] The running collection APP is an edge-side service that interacts with power terminal equipment or IoT objects. It interacts with the equipment by implementing specific business access protocols, including but not limited to collecting equipment data, intelligent alarms, fault location and control equipment.

[0060] The carrier networking information monitoring framework meets the edge computing functional requirements and four basic principles. The four basic principles are as follows:

[0061] Adhere to the principle of "edge-end logic separation, edge management sharing", provide a unified edge IoT agent framework, realize the functional separation of edge IoT agent and perception collection terminal, build a unified IoT management platform, realize unified access of massive terminals, and unify the source of data collection. Solve the problems of repeated construction of professional IoT management platforms and edge IoT agents, and difficulty in sharing data;

[0062] Adhere to the principle of "reliable, controllable, and customizable", the unified IoT perception system should establish unified technical specifications and fully absorb advanced and mature Internet technologies;

[0063] Adhere to the principle of "balancing security and ease of use", continue to use existing security protection measures in the information intranet, and adopt a general security protection solution that adapts to the Internet architecture on the Internet side to achieve safe and convenient access for user terminals;

[0064] Adhere to the principle of "open sharing", carry out real-time monitoring of carrier networking information, and aggregate it to the Internet of Things platform for unified data processing.

[0065] The functional components of the basic service layer in the carrier networking information monitoring framework include: data cache, device control, message bus, and service bus; the components of this layer serve as the basic services of carrier networking and are essential supporting components of the edge computing framework.

[0066] The main functional processes of the service bus of the carrier networking information monitoring framework are as follows: Figure 6 As shown, each component in the carrier networking information monitoring framework runs in the form of services, and all collection applications and edge computing applications also run in the form of services. The service bus monitors, discovers, registers, queries and calls the running status of all service components and business applications on the carrier networking information monitoring framework, provides real-time comprehensive monitoring for interfaces, aggregates to the IoT platform for unified management, and performs timely intelligent alarms, fault location and other functions.

[0067] Carrier network information monitoring framework bus such as Figure 7 As shown, the message bus is a cross-process communication mechanism used to transmit messages between upstream and downstream. After obtaining the message data, it forwards the message to the target terminal for processing the message according to the preset routing rules, helping all components to send, cache, distribute, route and receive messages.

[0068] It does not rely on other services logically or physically, and the message receiving end does not rely on other services to receive and process messages.

[0069] The carrier networking information monitoring framework obtains the device available command process as follows Figure 8 As shown in the figure, device control issues control commands or operations to the IoT gateway, CCO control unit, and STA devices in the IP network system; such control operations may come from other microservices of the framework, such as edge computing applications or rule engines, or from remote control commands or system management components of the IoT management platform;

[0070] Calling the interface of the collection application in a universal and standardized way simplifies communication with the device. Requesting data from the device or sensor through the GET command, controlling the device action or setting the device status through the PUT command, obtaining relevant device and sensor information from the model management microservice, and sending commands and operations to the device and sensor through the collection APP. It does not communicate directly with the device or sensor. The standardized method is the message queue telemetry transmission MQTT technology, which is a lightweight message transmission protocol.

[0071] Therefore, the device control microservice is a converter of commands or action requests from SG-Edge northbound to specific devices and related device servers. This design shields all other system calls from unnecessary interactions with the device.

[0072] The data cache component of the carrier networking information monitoring framework saves the business data process such as Fig. 9 As shown, the data cache provides a centralized persistence tool for the collected data. The collection application caches the device and sensor data in the device by calling the data cache service. The cached data will be sent to the IoT management platform or other external modules through the external carrier network.

[0073] As the only data cache module within the information monitoring framework, other components within the framework can obtain data from the power IoT terminal connected to the edge IoT agent by only accessing the data cache microservice.

[0074] The above-mentioned embodiments only express the preferred implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A carrier networking information monitoring method based on carrier IP technology, characterized in that: include: An IP network system is built based on IoT gateways, CCO control units and STA devices. The IP network system converts IP packets and carrier data link layer frames to achieve IP registration of devices and carrier networking communication. The carrier networking information monitoring framework is designed using a service-oriented microservice architecture. The carrier networking information monitoring framework performs device access and data collection on the IP network system. The functional components of the basic service layer in the carrier networking information monitoring framework include: data cache, device control, message bus, and service bus.

2. The carrier networking information monitoring method based on carrier IP technology according to claim 1 is characterized in that: In the IP network system, the IoT gateway and the CCO control unit are connected by UART, and the IoT gateway establishes network communication with the CCO control unit through the TCP / IP protocol; The CCO control unit and the STA device are connected by power lines, and network communication is established between the CCO control unit and the STA device through HPLC carrier technology.

3. The carrier networking information monitoring method based on carrier IP technology according to claim 2 is characterized in that: During the carrier networking communication process, the data transmitted between the IoT gateway and the CCO control unit is an IP packet, and the carrier data link layer frame is transmitted between the CCO control unit and the STA device through the carrier communication network. The virtual data link layer in the CCO control unit converts and processes the IP packet and the carrier data link layer frame.

4. The carrier networking information monitoring method based on carrier IP technology according to claim 3 is characterized in that: The CCO control unit is provided with a carrier IP software architecture, which includes: a main control unit and an HPLC carrier communication unit; The main control unit is used to establish an Ethernet communication network, send and receive IP packets in the IP network system and process them; The HPLC carrier communication unit is used to convert the IP packets processed by the main control unit into carrier frames and send them to the target STA device, or convert the carrier frames sent by the STA device into IP packets and send them to the main control unit.

5. The carrier networking information monitoring method based on carrier IP technology according to claim 4 is characterized in that: The application software layer of the CCO control unit is constructed with software middleware and a unified data information model; The software middleware first receives various protocols of each STA device connected to the CCO control unit, and then parses and adapts the device type of each STA device respectively; The unified data information model shields the protocol details of each STA device in the target area according to the needs, generates a unified plan for the low-voltage area device protocol, and provides unified data to the CCO control unit according to the unified plan for the device protocol.

6. The carrier networking information monitoring method based on carrier IP technology according to claim 5 is characterized in that: The IP network system adopts an encryption scheme to encrypt and protect data during the IP registration process, and adopts a combination of dual keys and single keys to achieve two-way authentication between the mobile node and the network; An encryption authentication protocol is constructed based on the AAA architecture protocol. When the functional entity MN registers in the home domain network, the functional entity AAAH and the functional entity MN use each other's public key certificates to complete the registration through the functional entity HA based on the encryption authentication protocol, and transfer the session key; When the functional entity MN enters the external network for the first time to authenticate the external network, the functional entity AAAH authenticates the functional entity MN; After the authentication is passed, the functional entity MN moves in the same external domain network, and the functional entity AAAF obtains information to verify the certificate of the functional entity MN and authenticates the functional entity MN.

7. The carrier networking information monitoring method based on carrier IP technology according to claim 1 is characterized in that: The service bus performs status monitoring, discovery, registration, query and service invocation on the running status of all service components and business applications on the carrier networking information monitoring framework.

8. The carrier networking information monitoring method based on carrier IP technology according to claim 7 is characterized in that: The message bus is a cross-process communication mechanism used to transmit messages between upstream and downstream. After obtaining the message data, it forwards the message to the target terminal for processing the message according to the preset routing rules, helping all components to send, cache, distribute, route and receive messages.

9. The carrier networking information monitoring method based on carrier IP technology according to claim 8 is characterized in that: The device control issues control commands or operations to the IoT gateway, CCO control unit and STA devices in the IP network system, calls the interface of the acquisition application in a universal and standardized manner, and simplifies communication with the devices.

10. The carrier networking information monitoring method based on carrier IP technology according to claim 9, characterized in that: The data cache provides a centralized persistence tool for the collected data. The collection application caches the device and sensor data in the device by calling the data cache service. The cached data will be sent to the IoT management platform or other external modules through external carrier networking.

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