CN114205375A - Electric power data acquisition system based on edge internet of things agent equipment - Google Patents
Electric power data acquisition system based on edge internet of things agent equipment Download PDFInfo
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- CN114205375A CN114205375A CN202111291656.XA CN202111291656A CN114205375A CN 114205375 A CN114205375 A CN 114205375A CN 202111291656 A CN202111291656 A CN 202111291656A CN 114205375 A CN114205375 A CN 114205375A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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Abstract
The invention discloses an electric power data acquisition system based on an edge Internet of things agent device, which comprises an electric power acquisition remote control terminal and an electric power cloud platform, wherein the electric power acquisition remote control terminal is in data connection with an edge Internet of things agent gateway, the edge Internet of things agent gateway is in data connection with the electric power cloud platform, the edge Internet of things agent gateway is used for data transmission with the electric power cloud platform and comprises a data reporting module, the data reporting module is also respectively in data connection with a protocol adaptation module, a tag module, a data conversion module, a subscription module and a storage module A, the electric power cloud platform comprises a debugging function module, a storage module B, a data issuing module and an authentication module, the electric power acquisition remote control terminal comprises a data acquisition module and a remote control module, the data communication pressure between an edge side device and the cloud platform is relieved, and the data transmission efficiency and reliability are improved, and reduce the data transmission flow of the SIM card of the edge gateway.
Description
Technical Field
The invention relates to the technical field of electric power data acquisition, in particular to an electric power data acquisition system based on edge internet of things proxy equipment.
Background
With the development of the power internet of things, the number of terminals connected to a cloud platform increases in geometric orders of magnitude, and the transmission efficiency is reduced along with the sudden increase of edge side data.
Protocols or standards such as HTTP, FTP, etc. are often used in the production environment, and although these protocols can deal with the communication problem between devices, they need to occupy more resources of the transmission channel. In addition, various environments in the actual environment are relatively severe, such as limited internet traffic and poor signals, which results in reduced reliability of data transmission.
How to collect data of a plurality of edge internet of things proxy gateways in real time and high efficiency is an important problem which faces currently, an electric power data collection system with patent number CN106843023B based on FPGA adopts FPGA as a main control device, which greatly improves the speed of data collection and the accuracy of a/D conversion, but is not suitable for collecting data of different edge internet of things proxy gateways, and the efficiency thereof is greatly reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an electric power data acquisition system based on edge Internet of things proxy equipment, which adopts a micro-flow MQTT data transmission protocol based on an edge Internet of things proxy gateway and an electric power data acquisition system to realize light-weight edge side data transparent transmission and reporting acquisition. The message format is optimized from the data formats of JSON, XML and the like used by the common traditional remote transmission protocol into a binary form, so that the bytes occupied by the message are reduced, and the transmission efficiency is improved.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an electric power data acquisition system based on edge thing allies oneself with agent equipment, includes electric power collection remote control terminal and electric power high in the clouds platform, electric power collection remote control terminal data connection has edge thing allies oneself with agent gateway, edge thing allies oneself with agent gateway and electric power high in the clouds platform data connection, edge thing allies oneself with agent gateway is used for reporting data module including with electric power high in the clouds platform data transmission, report data module still respectively data connection have agreement adaptation module, label module, data conversion module, subscription module and storage module A, electric power high in the clouds platform is including debugging functional module, storage module B, issuing data module and authentication module, report data module and issuing data module data connection, electric power collection remote control terminal is including data acquisition module and remote control module.
Preferably, the debugging function module comprises a configuration module and a data processing module, and the configuration module is in data connection with the data processing module.
Preferably, the authentication module comprises a digital certificate authentication module and a key authentication module, and the digital certificate authentication module is in data connection with the key authentication module.
Preferably, the digital certificate authentication module and the key authentication module data can be authenticated by adopting an X.509 certificate.
Preferably, the tags in the tag module are classified into product tags, device tags and group tags.
Preferably, data transmission between the edge internet of things proxy gateway and the electric power cloud platform is divided into an uplink data link and a downlink instruction link.
Preferably, the edge internet of things proxy gateway can perform Topic subscription by connecting with an electric power cloud platform, so as to realize data uploading or downloading and firmware updating.
(III) advantageous effects
Compared with the prior art, the invention provides an electric power data acquisition system based on edge Internet of things agent equipment, which has the following beneficial effects:
1. according to the invention, the data interconnection between the edge Internet of things proxy gateway and the electric power cloud platform is realized by setting the reporting data module and the issuing data module, the data transmission between the edge Internet of things proxy gateway and the electric power cloud platform is divided into an uplink data link mode and a downlink instruction link mode, and meanwhile, the JSON data during transmission is optimized into a binary system form by the edge Internet of things proxy gateway, so that the bytes occupied by messages are reduced, and the transmission efficiency is improved.
2. According to the invention, through the combination of the edge Internet of things proxy gateway, the electric power acquisition remote control terminal and the electric power cloud platform, the transmission protocol data of different devices are uniformly converted into MQTT data, the data communication pressure between the edge side device and the cloud platform is relieved, the data transmission efficiency and reliability are improved, and the data transmission flow of the SIM card of the edge gateway is reduced.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a schematic diagram illustrating a process of establishing connections between devices according to the present invention;
FIG. 3 is a schematic diagram illustrating a data transmission process between devices according to the present invention;
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following describes a power data acquisition system based on an edge internet of things proxy device in further detail with reference to the accompanying drawings.
Referring to fig. 1-3, an electric power data acquisition system based on an edge internet of things proxy device comprises an electric power acquisition remote control terminal and an electric power cloud platform, the electric power acquisition remote control terminal is in data connection with an edge internet of things proxy gateway, the edge internet of things proxy gateway is in data connection with the electric power cloud platform, the edge internet of things proxy gateway is used for data transmission with the electric power cloud platform and comprises a reporting data module, the reporting data module is also in data connection with a protocol adaptation module, a tag module, a data conversion module, a subscription module and a storage module A respectively, the electric power cloud platform comprises a debugging function module, a storage module B, a sending data module and an authentication module, the reporting data module is in data connection with the sending data module, the electric power acquisition remote control terminal comprises a data acquisition module and a remote control module, the debugging function module comprises a configuration module and a data processing module, the configuration module is in data connection with the data processing module.
As shown in fig. 1-2
When each edge Internet of things agent gateway device is accessed, the edge Internet of things agent platform is electrified and networked to automatically acquire an IP address, and simultaneously the edge Internet of things agent gateway acquires a relevant certificate from a cloud server of a manufacturer, the manufacturer of the edge Internet of things agent gateway does not need to burn equipment certificates for the device, after the relevant certificate is acquired, the edge Internet of things agent gateway establishes connection with the electric power cloud platform through an MQTT protocol, a configuration module in the electric power cloud platform issues a unique certificate for each accessed edge Internet of things agent gateway, the edge Internet of things agent gateway uses the issued certificate to carry out identity verification through an authentication module and is connected with the electric power cloud platform, the scheme can be adopted without designing a certificate burning process on a production line, the mass production speed of the device can be accelerated, the authentication module comprises a digital certificate authentication module and a key authentication module, and the digital certificate authentication module is in data connection with the key authentication module, the equipment supports TLS (MQTT) data transmission channels and also ensures the confidentiality and the integrity of data; the MQTT is a lightweight proxy-based publish/subscribe message transmission protocol, provides one-to-many message publishing, releases application program coupling and minimizes protocol exchange based on a TCP/IP network so as to reduce network flow, thereby effectively avoiding the problem of data congestion during the collection of each electric power data.
The digital certificate authentication module and the key authentication module can authenticate data by adopting an X.509 certificate, and support the edge Internet of things proxy gateway directly connected based on an MQTT protocol to authenticate by using the X.509 certificate, the security level is very high, and the certificate information comprises: the operation flow of using the X.509 Certificate comprises the following steps: when a product is created on the electric power cloud platform, the authentication mode is selected as an X.509 certificate; an edge Internet of things proxy gateway is established under the product, and an electric power cloud platform issues an X.509 certificate and a secret key for the edge Internet of things proxy gateway; developing an SDK (secure data link) of the edge Internet of things proxy gateway, and burning an X.509 digital certificate and a secret key to the SDK of the edge Internet of things proxy gateway; the edge Internet of things proxy gateway performs identity authentication configuration; besides the function of the certificate, the X.509 also attaches a certificate revocation list and a certificate validity verification algorithm from a certificate issuing authority for finally signing the certificate to a final trusted point, and the multiple safety protection is provided by matching with a key authentication module, so that the safety of data transmission is effectively guaranteed;
as shown in fig. 1-3
The edge internet of things proxy gateway and the electric power cloud platform are interconnected through a reporting data module and a sending data module to realize data transmission, different protocol data formats adopted during data uploading are converted into an MQTT protocol through a protocol adaptation module in the edge internet of things proxy gateway, JSON data during transmission are optimized into a binary system form through a data conversion module and are reported to the electric power cloud platform, so that the occupied bytes of messages can be reduced, and the transmission efficiency is improved, for example, a number such as 123 is transmitted, if the number is transmitted by using a character string, 3 bytes are needed; if the binary system is used for transmission, the binary system is 0x7B, and only 1 byte is needed; the lightweight edge side data is transmitted and reported and collected, and the transmission efficiency is improved; the binary form data file saves space and does not cause loss of effective bits when being stored, and is easier to convert data when the file conversion is needed and the data volume is large, so that the method is more convenient and efficient;
meanwhile, when different edge Internet of things proxy gateways transmit data, tags are added to the data through tag modules, and the identifiability of the data is guaranteed, wherein the tags in the tag modules are divided into product tags, equipment tags and grouping tags, and the product tags are used for describing common information of all edge Internet of things proxy gateways under the same product; the equipment tag is a special mark added for the edge Internet of things proxy gateway according to the characteristics of the edge Internet of things proxy gateway, and the tag content can be customized; the grouping label is used for describing the common information of all the edge Internet of things proxy gateways under the same grouping; the electric power cloud platform can specify the maximum throughput of uplink and downlink messages of the edge Internet of things agent gateway per second, namely the total number of messages sent to the electric power cloud platform by all the edge Internet of things agent gateways and the total number of messages sent to the edge Internet of things agent gateways by the electric power cloud platform per second; then the electric power cloud platform compiles SQL through a debugging function module to analyze and process the reported binary data, configures a forwarding rule, stores the processed data into a storage module B, and simultaneously uses Publish to issue a command to the edge Internet of things agent platform through a data issuing module through an MQTT protocol; in the method, the edge internet of things proxy gateway establishes connection with an electric power cloud platform through an MQTT protocol, the process of reporting data (Topic and Payload are issued through Publish) to the electric power cloud platform is an uplink data link, and the process of sending data (Topic and Payload are designated) to the edge internet of things proxy gateway through the MQTT protocol by using Publish is a downlink instruction link; it should be considered that recording and storing states and data during operation is an important task in the operation of the power system, and is used to meet various statistical requirements and predict the future operation condition and power utilization plan of the system through accurate recording, and the general implementation method of recording and storing is to obtain pre-selected data sets at certain periodic intervals and store them in a rolling file, the storage period is often set to 1h, but in some special cases, more frequent information acquisition and storage is needed.
The edge internet of things proxy gateway can also perform Topic subscription by connecting an electric power cloud platform to realize data uploading or downloading and firmware updating, the Topic is a UTF-8 character string, is a transmission medium of a publish (Pub)/subscribe (Sub) message, and can publish or subscribe the message to the Topic, and the Topic topics can be roughly divided into five types: a terminal device common theme (which is used for communication with all devices in the system); the edge internet of things proxy gateway common theme (the theme is used for communicating with all the devices in the system); a cloud platform common theme (which is used for communication with all devices in the system); private topics (used for communication with a certain terminal device and the edge Internet of things proxy gateway).
Most of the power systems collect data in a query fashion, for example, a MODBUS RTU transmits data to a master station only after receiving a request from the master station, and the communication line must have sufficient bandwidth capacity, to accommodate the worst case scenario, which makes bandwidth capacity particularly important in power data acquisition systems, therefore, the occupied bandwidth capacity should be reduced as much as possible under the same data acquisition system, the transmission efficiency should be improved in an effort, in addition, when the power data acquisition system is erected, the monitoring problem should be considered, the running condition of the equipment can be monitored in real time, the server architecture adopts hardware and software dual redundancy configuration, when the equipment is in a state, the other equipment can be put into operation immediately, the data of the two equipment are identical until the fault server recovers to operate, and the backup server stops operating, so that reliable guarantee is provided for the safety of the data.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The utility model provides an electric power data acquisition system based on edge thing allies oneself with agent's equipment, includes electric power collection remote control terminal and electric power high in the clouds platform, its characterized in that: the electric power acquisition remote control terminal is characterized in that the electric power acquisition remote control terminal is in data connection with an edge Internet of things proxy gateway, the edge Internet of things proxy gateway is in data connection with an electric power cloud platform, the edge Internet of things proxy gateway is used for transmitting data with the electric power cloud platform and comprises a reporting data module, the reporting data module is also in data connection with a protocol adaptation module, a tag module, a data conversion module, a subscription module and a storage module A, the electric power cloud platform comprises a debugging function module, a storage module B, a data issuing module and an authentication module, the reporting data module is in data connection with the data issuing module, and the electric power acquisition remote control terminal comprises a data acquisition module and a remote control module.
2. The power data acquisition system based on the edge internet of things agent equipment as claimed in claim 1, wherein: the debugging functional module comprises a configuration module and a data processing module, and the configuration module is in data connection with the data processing module.
3. The power data acquisition system based on the edge internet of things agent equipment as claimed in claim 1, wherein: the authentication module comprises a digital certificate authentication module and a key authentication module, and the digital certificate authentication module is in data connection with the key authentication module.
4. The power data acquisition system based on the edge internet of things agent equipment as claimed in claim 3, wherein: the digital certificate authentication module and the key authentication module data can be authenticated by adopting an X.509 certificate.
5. The power data acquisition system based on the edge internet of things agent equipment as claimed in claim 1, wherein: the labels in the label module are classified into product labels, device labels and grouping labels.
6. The power data acquisition system based on the edge internet of things agent equipment as claimed in claim 1, wherein: and data transmission between the edge Internet of things proxy gateway and the electric power cloud platform is divided into an uplink data link and a downlink instruction link.
7. The power data acquisition system based on the edge internet of things agent equipment as claimed in claim 1, wherein: the edge internet of things proxy gateway can be connected with an electric power cloud platform to subscribe a Topic of Topic, so that data uploading or downloading and firmware updating are realized.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115118449A (en) * | 2022-05-13 | 2022-09-27 | 国网浙江省电力有限公司信息通信分公司 | Energy internet oriented safe and efficient interaction edge proxy server |
| CN117135011A (en) * | 2023-10-27 | 2023-11-28 | 深圳市天思智慧科技有限公司 | Method for adapting gateway to multiple cloud platforms based on MQTT communication and gateway system |
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