CN114401123A - Novel intelligent meter acquisition system based on extensible communication protocol and access method - Google Patents
Novel intelligent meter acquisition system based on extensible communication protocol and access method Download PDFInfo
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- CN114401123A CN114401123A CN202111631568.XA CN202111631568A CN114401123A CN 114401123 A CN114401123 A CN 114401123A CN 202111631568 A CN202111631568 A CN 202111631568A CN 114401123 A CN114401123 A CN 114401123A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
- H04Q9/02—Automatically-operated arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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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
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
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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
- H04L69/22—Parsing or analysis of headers
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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
- H04L69/26—Special purpose or proprietary protocols or architectures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/82—Arrangements in the sub-station, i.e. sensing device where the sensing device takes the initiative of sending data
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Abstract
The invention relates to a novel intelligent meter acquisition system and an access method based on an extensible communication protocol, which comprises the following steps: acquiring a front module, an MQTT Broker module and a novel intelligent meter module; the acquisition front-end module is connected with the MQTT Broker module, is used for sending topic of the power consumption information of the special transformer user to be acquired to the MQTT Broker module and receiving the power consumption data of the special transformer user analyzed and completed by the MQTT Broker module; the MQTT Broker module is connected with the novel intelligent meter module and used for forwarding the topic of the acquisition front-end module to the novel intelligent meter module and analyzing and returning the electricity utilization information data of the special transformer user sent by the novel intelligent meter module; the novel intelligent meter module is used for collecting the electricity utilization information data of the special transformer user. The invention can solve the problems of small data transmission quantity and low transmission speed of the traditional power utilization information acquisition system.
Description
Technical Field
The invention belongs to the technical field of electric energy collection and novel intelligent meters, and relates to a novel intelligent meter collection system and an access method, in particular to a novel intelligent meter collection system and an access method based on an extensible communication protocol.
Background
The electricity utilization information acquisition system covered by the national network at the end of 2014 has realized the comprehensive coverage of all power users and gateways, realizes the online monitoring of metering devices and the real-time acquisition of important information such as load, electric quantity, voltage and the like of special transformer users, can timely, completely and accurately provide basic data for advanced analysis and assistant decision research of related systems, and provides a solid information foundation for realizing the intelligent bidirectional interaction of electric energy meters.
The electricity consumption information acquisition system takes the intelligent meter as main metering equipment to realize comprehensive acquisition and monitoring of various electricity consumption information. Traditional special transformer user smart meter mainly adopts the 3761 stipulation, conveys collection equipment such as concentrator, collector through the electric power intranet, transmits collection main website system to gathering by collection equipment through the electric power intranet again, has that the transmission data volume is little, transmission speed is slow grade defect.
Upon search, no prior art documents that are the same or similar to the present invention have been found.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a novel intelligent meter acquisition system and an access method based on an extensible communication protocol, and can solve the problems of small data transmission quantity and low transmission speed of the traditional power utilization information acquisition system.
The invention solves the practical problem by adopting the following technical scheme:
a novel intelligent meter acquisition system and an access method based on an extensible communication protocol comprise: acquiring a front module, an MQTT Broker module and a novel intelligent meter module; the acquisition front-end module is connected with the MQTT Broker module, is used for sending topic of the power consumption information of the special transformer user to be acquired to the MQTT Broker module and receiving the power consumption data of the special transformer user analyzed and completed by the MQTT Broker module; the MQTT Broker module is connected with the novel intelligent meter module and used for forwarding the topic of the acquisition front-end module to the novel intelligent meter module and analyzing and returning the electricity utilization information data of the special transformer user sent by the novel intelligent meter module; the novel intelligent meter module is used for collecting the electricity utilization information data of the special transformer user.
Moreover, the MQTT Broker module comprises an MQTT interface module, a protocol analysis module and a safety protection module; the MQTT interface module is used for receiving specially-changed user electricity utilization information acquisition data in a 698 message format returned by the novel intelligent meter module; the output end of the MQTT interface module is connected with the protocol analysis module and used for sending 698 message format special transformer user electricity information acquisition data to the protocol analysis module for analysis; the output end of the protocol analysis module is connected with the acquisition front-end module and used for analyzing the received special transformer user electricity utilization information acquisition data in the 698 message format into a format which can be recognized by the acquisition front-end module and then sending the format to the acquisition front-end module.
And the safety protection module is independent of the MQTT interface module and the protocol analysis module and is used for providing network safety protection functions of identity authentication, communication encryption and boundary isolation for the MQTT interface module and the protocol analysis module.
An access method of a novel intelligent meter acquisition system based on an extensible communication protocol comprises the following steps:
and 2, designing a data exchange mechanism between the electricity utilization information acquisition system and the novel intelligent meter, realizing data exchange by taking an MQTT Broker as a transfer station, and finishing topic definition required in the data exchange process.
Step 3, selecting an MQTT Broker interface protocol, designing a 698 message structure for data transmission and a 698 protocol analysis function for data analysis,
and 4, designing a safety protection module to provide network safety protection for the steps of accessing the novel intelligent meter data to protocol analysis and the like, and realizing the safety access gateway of the novel intelligent meter data.
Moreover, the specific method of step 1 is:
the configuration parameters comprise an IP address, a port number and a heartbeat period of an MQTT Broker end and virtual private network parameters used when a novel intelligent table carries out network dialing to a network operator
The step 2 specifically includes the steps of:
(1) based on the parameter adaptive configuration work completed in the step 1, a data exchange mechanism between the power consumption information acquisition system and the novel intelligent meter is designed, different topics are defined by MQTT Broker to distinguish different services, the power consumption information acquisition system and the novel intelligent meter of the special transformer user place own data in the corresponding topics, the MQTT Broker monitors the topics for storing the data to be acquired, and the MQTT Broker is used as a transfer station to realize data exchange;
(2) the topic for distinguishing different services is designed based on an MQTT protocol and comprises a reading instruction for acquiring a prepositive issue, an MQTT data packet corresponding to the reading instruction and used for responding to an ammeter, and data used for actively reporting the ammeter.
The step 3 specifically includes:
(1) selecting a southbound interface protocol as an MQTT Broker interface protocol based on the data exchange mechanism in the step 2, and packaging transmission data in a 698 message by using a POST method in the 698 protocol, wherein the transmission data appear in a name/value form;
(2) designing a 698 message structure based on a southbound interface protocol, wherein the 698 message comprises a message header, CR + LF, a message body, a request line, a state line and a header field;
(3) design the analytic function of agreement based on 698 agreement, realize novel smart meter and insert data and analyze.
Moreover, the step 4 specifically includes:
the safety protection module is designed to provide network safety protection functions of identity authentication, communication encryption and boundary isolation for the novel intelligent meter access protocol analysis service, and a novel intelligent meter data safety access gateway is realized.
The invention has the advantages and beneficial effects that:
1. the invention provides an electricity utilization information acquisition system and an access method based on an extensible communication protocol, which adopt an MQTT +698 (object-oriented protocol) mode aiming at the data overall structure of a novel intelligent meter of a special transformer user, set an MQTT Broker transfer station based on the MQTT protocol, realize the data butt joint of the electricity utilization information acquisition system and the novel intelligent meter, and have the characteristics of large transmission data volume, high transmission speed and the like. The method and the model provided by the invention have universality and can be applied to other industry fields.
2. The invention can reduce the system development cost and reduce the occupied bandwidth of the communication protocol. The invention provides a power consumption information acquisition system and an access method for a special transformer user based on an MQTT protocol, which can realize real-time reliable bidirectional transmission of power consumption data of the special transformer user between a novel intelligent meter and a main station acquisition system with few codes and limited bandwidth, reduce the system development cost and reduce the occupied bandwidth of a communication protocol.
3. The invention can realize the decoupling of the special transformer user terminal and the master station system, and has large transmission data volume and high transmission speed. According to the invention, the MQTT Broker is used as the transfer station, so that the novel intelligent meter device and the main station are in decoupling connection, different services can communicate through the MQTT message queue without concerning implementation details of each other, only the format of the message is defined, the workload of information transmission is effectively reduced, the data transmission amount is increased, and the information transmission speed is increased.
4. The invention provides a system and an access method for acquiring power consumption information of a special transformer user based on an extended communication protocol, which can realize data docking based on MQTT Broker transfer station between a novel intelligent ammeter of the special transformer user and power consumption information of a main station acquisition system through work such as parameter adaptive configuration, data exchange mechanism design, data access module design, safety protection module design and the like.
Drawings
Fig. 1 is a schematic diagram of a private transformer user power consumption information acquisition system based on an extended communication protocol.
Detailed Description
The embodiments of the invention will be described in further detail below with reference to the accompanying drawings:
the invention provides a novel intelligent meter acquisition system and an access method based on an extensible communication protocol, which realize the butt joint of the power consumption information of a special transformer user novel intelligent meter and a main station acquisition system through the steps of parameter adaptive configuration, data exchange mechanism design, data access module design, safety protection module design and the like. The invention adopts MQTT +698 (object-oriented protocol) mode aiming at the data integral structure of the novel intelligent meter of the special transformer user, sets the MQTT Broker transfer station based on the MQTT protocol, realizes the data butt joint of the power consumption information acquisition system and the novel intelligent meter, and has the characteristics of large transmission data volume, high transmission speed and the like.
A novel smart meter collection system based on extensible communication protocol, as shown in fig. 1, includes: acquiring a front module, an MQTT Broker module and a novel intelligent meter module; the acquisition front-end module is connected with the MQTT Broker module, is used for sending topic of the power consumption information of the special transformer user to be acquired to the MQTT Broker module and receiving the power consumption data of the special transformer user analyzed and completed by the MQTT Broker module; the MQTT Broker module is connected with the novel intelligent meter module and used for forwarding the topic of the acquisition front-end module to the novel intelligent meter module and analyzing and returning the electricity utilization information data of the special transformer user sent by the novel intelligent meter module; the novel intelligent meter module is used for collecting the electricity utilization information data of the special transformer user.
In this embodiment, the MQTT Broker module includes an MQTT interface module, a protocol parsing module, and a security protection module; the MQTT interface module is used for receiving specially-changed user electricity utilization information acquisition data in a 698 message format returned by the novel intelligent meter module; the output end of the MQTT interface module is connected with the protocol analysis module and used for sending 698 message format special transformer user electricity information acquisition data to the protocol analysis module for analysis; the output end of the protocol analysis module is connected with the acquisition front-end module and used for analyzing the received special transformer user electricity utilization information acquisition data in the 698 message format into a format which can be recognized by the acquisition front-end module and then sending the format to the acquisition front-end module.
In this embodiment, the security protection module is independent of the MQTT interface module and the protocol analysis module, and is configured to provide network security protection functions of identity authentication, communication encryption, and boundary isolation for the MQTT interface module and the protocol analysis module.
The functions of the modules in the system are further described below:
the acquisition front-end module is used for acquiring the electricity utilization information of the special transformer user from the novel intelligent meter module; the acquisition preposition module output end is connected with the MQTT Broker module and is used for sending topic to the MQTT Broker module of the power consumption information of the special transformer user to be acquired; the input end of the acquisition front module is connected with the MQTT Broker module and is used for receiving the electricity consumption data of the special transformer user analyzed and completed by the MQTT Broker module.
The MQTT Broker module is a connecting module between an acquisition front-end module and a novel intelligent meter module of an information acquisition system for a special transformer user, and is used for forwarding topic of the acquisition front-end module and analyzing and returning power utilization information data of the special transformer user sent by the novel intelligent meter module; the input end of the MQTT Broker module is connected with the acquisition front-end module and is used for receiving topic of the power consumption information of the special transformer user to be acquired, which is sent by the acquisition front-end module; the output end of the MQTT Broker module is connected with the novel intelligent meter module and is used for forwarding the received topic to the novel intelligent meter module; the input end of the MQTT Broker module is connected with the novel intelligent meter module and is used for receiving power consumption information acquisition data of a special transformer user in a 698 message format returned by the novel intelligent meter module; the output end of the MQTT Broker module is connected with the acquisition front-end module and used for analyzing the power utilization information acquisition data of the special transformer user in the 698 message format into a format which can be identified by the acquisition front-end module and then transmitting the data to the acquisition front-end module.
The MQTT interface module is used for receiving specially-changed user electricity utilization information acquisition data in a 698 message format returned by the novel intelligent meter module; the input end of the MQTT interface module is connected with the novel intelligent meter module and is used for receiving specially-changed user electricity consumption information acquisition data of 698 message format returned by the novel intelligent meter module; the output end of the MQTT interface module is connected with the protocol analysis module and used for sending 698 message format electricity utilization information acquisition data of the special transformer user to the protocol analysis module for analysis.
The protocol analysis module is used for analyzing 698 message format special transformer user electricity utilization information acquisition data; the input end of the protocol analysis module is connected with the MQTT interface module and is used for receiving the electricity utilization information acquisition data of the special transformer user in a 698 message format sent by the MQTT interface module; the output end of the protocol analysis module is connected with the acquisition front-end module and used for analyzing the received special transformer user electricity utilization information acquisition data in the 698 message format into a format which can be recognized by the acquisition front-end module and then sending the format to the acquisition front-end module.
The safety protection module is independent of the MQTT interface module and the protocol analysis module, and is used for providing network safety protection functions such as identity authentication, communication encryption and boundary isolation for the MQTT interface module and the protocol analysis module, and realizing a novel intelligent meter data safety access gateway.
The novel intelligent meter module is used for collecting the electricity utilization information data of the special transformer user and accessing the data into the electricity utilization information collection system of the special transformer user; the input end of the novel intelligent meter module is connected with the MQTT Broker module and is used for acquiring the electricity utilization information of the special transformer user according to the electricity utilization information acquisition topic of the special transformer user forwarded by the MQTT Broker module; the output end of the novel intelligent meter module is connected with the MQTT Broker module and is used for transmitting the collected electricity utilization information data of the special transformer users back to the MQTT Broker module in a 698 message format.
An access method of a novel smart meter acquisition system based on an extensible communication protocol is shown in fig. 1, and the method includes the following steps:
step 1: and (4) parameter adaptive configuration.
Parameters between the MQTT Broker end and each novel intelligent meter of the special transformer user are configured adaptively, and the power utilization information acquisition system can receive different data contents of each novel intelligent meter of the special transformer user through the MQTT Broker conveniently.
Step 2: and designing a data exchange mechanism.
And a data exchange mechanism between the power utilization information acquisition system and the novel intelligent meter is designed, data exchange is realized by taking an MQTT Broker as a transfer station, and the topic definition required in the data exchange process is completed.
And step 3: and designing a data access module.
An MQTT Broker interface protocol is selected, a 698 message structure for data transmission and a 698 protocol analysis function for data analysis are designed, and data connection of the novel electric energy meter and the power utilization information acquisition system through the MQTT Broker is achieved.
And 4, step 4: and designing a safety protection module.
The safety protection module is designed to provide network safety protection for the steps of accessing the novel intelligent meter data to the protocol analysis and the like, and the novel intelligent meter data safety access gateway is realized.
Further, the step 1 specifically comprises:
parameters between the MQTT Broker end and each novel intelligent meter of the special transformer user are configured adaptively, and the power utilization information acquisition system can receive different data contents of each novel intelligent meter of the special transformer user through the MQTT Broker conveniently. The configuration parameters comprise an Ip address, a port number and a heartbeat cycle of an MQTT Broker end, virtual private network parameters used when the novel intelligent table carries out network dialing to a network operator, and the like. Thereby completing parameter adaptive configuration.
Further, the step 2 specifically comprises:
because novel smart meter transmission channel is changed into the 4G network by original electric power intranet, more is fit for adopting the MQTT agreement, consequently regard as the transfer station with MQTT Broker server, realize the novel ammeter butt joint of power consumption information acquisition system and special transformer user.
Step 21: data exchange mechanism design
And (3) designing a data exchange mechanism between the power utilization information acquisition system and the novel intelligent meter based on the parameter adaptive configuration work completed in the step (1). Different topics are defined by MQTT Broker to distinguish different services, the power utilization information acquisition system and the novel intelligent meter of the special transformer user put own data in the corresponding topic, the Topic storing the data to be acquired is monitored by the MQTT Broker, and data exchange is realized by taking the MQTT Broker as a transfer station.
Step 22: definition of topic
The topic for distinguishing different services in the step 21 is designed based on the MQTT protocol, and includes a reading instruction for collecting a pre-issued reading instruction, an MQTT data packet corresponding to the reading instruction and used for ammeter reply, data used for the ammeter to actively report, such as power data of power failure events, ammeter errors and the like, and original data of load identification data. The reading instruction topic for acquiring the pre-issued reading instruction is defined as: down/json/xxxxx; the MQTT data packet topic corresponding to down for the reply of the electric meter is defined as: up/reply/json/xxxxx; the power failure event, the ammeter error and other data topic for the active reporting of the ammeter are defined as follows: up/auto 1/json/xxxxx; the original data topic of the load identification data actively reported by the electric meter is defined as: up/auto 2/json/xxxxx. Thereby completing the data exchange mechanism design.
Further, the step 3 specifically comprises:
the data access module needs to complete three parts of MQTT Broker interface protocol selection, 698 message structure design and protocol analysis function design, so that transmission and exchange of electricity utilization data of a special transformer user between an electricity utilization information acquisition system and a novel electric energy meter based on an MQTT Broker transfer station are realized.
Step 31: interface protocol selection
And (3) selecting a southbound interface protocol as an MQTT Broker interface protocol based on the data exchange mechanism in the step 2, packaging the transmission data in a 698 message by using a POST method in the 698 protocol, wherein the transmission data appear in a name/value form, a large amount of data can be transmitted, and the specific content of the transmission data cannot be displayed.
Step 32: 698 message structure design
A 698 message structure is designed based on the southbound interface protocol in step 31, where the 698 message includes a message header, CR + LF, a message body, a request line, a status line, a header field, and so on. Wherein, the message header is the content and attribute of the request or response that the server or client needs to process; CR + LF is a carriage return line-feed character; the message body is data to be sent; the request line contains the method used for the request, the request URI and the HTTP version; the status row contains a status code indicating the response result, a reason phrase and an HTTP version; the header fields contain various types of headers (generic header, request header, response header, and entity header) that represent various conditions and attributes of the request and response.
Step 33: protocol resolution function design
And designing a protocol analysis function based on the 698 protocol in the step 31 to realize the analysis of the novel intelligent meter access data. The protocol analysis function comprises three parts of communication preposition, protocol framing and load balancing. The communication preposition is used for realizing the connection of 698 protocol equipment, and a novel intelligent meter is mainly arranged in the electricity consumption information acquisition system; the protocol framing is mainly aimed at the accessed novel intelligent meter equipment, the protocol framing module function is used for distinguishing protocol layers and access ports of a plurality of accessed equipment, and different protocol data are transmitted to topic corresponding to kafka; the load balancing is that when the equipment is connected with the analysis service, the load balancing is adopted to dynamically configure the connection information, expand the bandwidth of the network communication preposition, increase the throughput, strengthen the network data processing capability and improve the flexibility and the availability of the network. Thereby completing the data access module design.
Further, the step 4 specifically includes:
and designing a safety protection module to access the novel intelligent meter in the step 3, wherein the protocol analysis service provides network safety protection functions such as identity authentication, communication encryption, boundary isolation and the like, and the novel intelligent meter data safety access gateway is realized. Thereby completing the safety protection module design.
The data of the novel intelligent meter of the special transformer user adopts 698 object-oriented protocols, is different from the traditional power intranet transmission, and can be transmitted through a 4G network. Based on the communication mode of the MQTT protocol (Message queue Telemetry Transport), an MQTT agent (Broker) is arranged, the decoupling connection of novel intelligent meter equipment and a main station is realized, real-time and reliable Message service can be provided for connecting remote equipment by using few codes and limited bandwidth, the system development cost is effectively reduced, and the occupied bandwidth of a communication protocol is reduced.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Claims (8)
1. The utility model provides a novel smart meter collection system based on extensible communication protocol which characterized in that: the method comprises the following steps: acquiring a front module, an MQTT Broker module and a novel intelligent meter module; the acquisition front-end module is connected with the MQTT Broker module, is used for sending topic of the power consumption information of the special transformer user to be acquired to the MQTT Broker module and receiving the power consumption data of the special transformer user analyzed and completed by the MQTT Broker module; the MQTT Broker module is connected with the novel intelligent meter module and used for forwarding the topic of the acquisition front-end module to the novel intelligent meter module and analyzing and returning the electricity utilization information data of the special transformer user sent by the novel intelligent meter module; the novel intelligent meter module is used for collecting the electricity utilization information data of the special transformer user.
2. The system according to claim 1, wherein said system comprises: the MQTT Broker module comprises an MQTT interface module, a protocol analysis module and a safety protection module; the MQTT interface module is used for receiving specially-changed user electricity utilization information acquisition data in a 698 message format returned by the novel intelligent meter module; the output end of the MQTT interface module is connected with the protocol analysis module and used for sending 698 message format special transformer user electricity information acquisition data to the protocol analysis module for analysis; the output end of the protocol analysis module is connected with the acquisition front-end module and used for analyzing the received special transformer user electricity utilization information acquisition data in the 698 message format into a format which can be recognized by the acquisition front-end module and then sending the format to the acquisition front-end module.
3. The system according to claim 1, wherein said system comprises: the safety protection module is independent of the MQTT interface module and the protocol analysis module and is used for providing network safety protection functions of identity authentication, communication encryption and boundary isolation for the MQTT interface module and the protocol analysis module.
4. An access method of a novel intelligent meter acquisition system based on an extensible communication protocol is characterized in that: the method comprises the following steps:
step 1, adaptively configuring parameters between an MQTT Broker end and a novel intelligent table of each special transformer user,
and 2, designing a data exchange mechanism between the electricity utilization information acquisition system and the novel intelligent meter, realizing data exchange by taking an MQTT Broker as a transfer station, and finishing topic definition required in the data exchange process.
Step 3, selecting an MQTT Broker interface protocol, designing a 698 message structure for data transmission and a 698 protocol analysis function for data analysis,
and 4, designing a safety protection module to provide network safety protection for the steps of accessing the novel intelligent meter data to protocol analysis and the like, and realizing the safety access gateway of the novel intelligent meter data.
5. The method according to claim 4, wherein the method comprises the following steps: the specific method of the step 1 comprises the following steps:
the configuration parameters comprise an IP address, a port number and a heartbeat period of an MQTT Broker end and virtual private network parameters used when a novel intelligent table carries out network dialing to a network operator
6. The method according to claim 4, wherein the method comprises the following steps: the step 2 specifically comprises the following steps:
(1) based on the parameter adaptive configuration work completed in the step 1, a data exchange mechanism between the power consumption information acquisition system and the novel intelligent meter is designed, different topics are defined by MQTT Broker to distinguish different services, the power consumption information acquisition system and the novel intelligent meter of the special transformer user place own data in the corresponding topics, the MQTT Broker monitors the topics for storing the data to be acquired, and the MQTT Broker is used as a transfer station to realize data exchange;
(2) the topic for distinguishing different services is designed based on an MQTT protocol and comprises a reading instruction for acquiring a prepositive issue, an MQTT data packet corresponding to the reading instruction and used for responding to an ammeter, and data used for actively reporting the ammeter.
7. The method according to claim 4, wherein the method comprises the following steps: the step 3 specifically comprises the following steps:
(1) selecting a southbound interface protocol as an MQTT Broker interface protocol based on the data exchange mechanism in the step 2, and packaging transmission data in a 698 message by using a POST method in the 698 protocol, wherein the transmission data appear in a name/value form;
(2) designing a 698 message structure based on a southbound interface protocol, wherein the 698 message comprises a message header, CR + LF, a message body, a request line, a state line and a header field;
(3) design the analytic function of agreement based on 698 agreement, realize novel smart meter and insert data and analyze.
8. The method according to claim 4, wherein the method comprises the following steps: the specific method in the step 4 comprises the following steps:
the safety protection module is designed to provide network safety protection functions of identity authentication, communication encryption and boundary isolation for the novel intelligent meter access protocol analysis service, and a novel intelligent meter data safety access gateway is realized.
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