CN114243916A - Network topology verification method and system - Google Patents

Network topology verification method and system Download PDF

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Publication number
CN114243916A
CN114243916A CN202111522007.6A CN202111522007A CN114243916A CN 114243916 A CN114243916 A CN 114243916A CN 202111522007 A CN202111522007 A CN 202111522007A CN 114243916 A CN114243916 A CN 114243916A
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China
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topological structure
branch
reporting time
user
branch gateway
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CN202111522007.6A
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CN114243916B (en
Inventor
温克欢
黄慧山
薛冰
钟聪
耿博
杨祥勇
唐义锋
徐声
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Shenzhen Power Supply Bureau Co Ltd
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Shenzhen Power Supply Bureau Co Ltd
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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
    • H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • 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
    • H02J13/00002—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 monitoring
    • 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
    • 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
    • H02J13/00007—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 using the power network as support for the transmission
    • 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
    • H02J13/00016—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 using a wired telecommunication network or a data transmission bus
    • 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
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies
    • 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
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention discloses a method for verifying power network topology, which comprises the following steps: step S10, the master station issues configuration information to each household meter device through the branch gateway according to the preliminarily identified topological structure; step S11, when the preset report time is up, each user meter device reports its own device identification to its corresponding branch gateway; step S12, each branch gateway collects the received device identification and reporting time of the user meter device, and reports the device identification and reporting time to the master station together with the own identification of the branch gateway; and step S13, the master station forms the verification topological structure after receiving the device identifications of the user meter devices and the reporting time sent by all the branch gateways, compares the verification topological structure with the initially identified topological structure, and determines the final network topological structure. The invention also discloses a corresponding system. By implementing the invention, the accuracy of the verification of the network topology can be improved, the verification time is reduced, and the verification efficiency is improved.

Description

Network topology verification method and system
Technical Field
The invention relates to the technical field of topology identification, in particular to a network topology verification method and a network topology verification system.
Background
In an electrical power system, a transformer area refers to the supply range or area of a (single) transformer. At present, the network topology in the distribution area is mainly identified by sending a device identifier to the branch gateway through the user meter device, and then the branch gateway sends the branch gateway identifier and the received device identifier to the master station, so that the master station can determine the network topology according to the branch gateway identifier and the device identifier.
The user meter device reports the device identification to the branch gateway in the form of characteristic current. Specifically, the user meter device sends the characteristic current to the branch gateway in the form of a power line carrier, and the branch gateway determines the device identifier represented by the characteristic current according to the characteristic information of the characteristic current, so that the device identifier is reported. Specifically, the waveform of the characteristic current may be used as the characteristic information of the characteristic current, and the device identifier represented by the characteristic current may be determined according to the waveform of the characteristic current.
However, in the prior art, when the device identifier is reported to the branch gateway in the form of the characteristic current, the power system is prone to interfere with the characteristic current, so that the device identifier represented by the characteristic current is inaccurate or an identification error occurs.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for verifying a network topology, which can improve the accuracy of the verification of the network topology, reduce the time for the verification, and improve the verification efficiency.
To solve the above technical problem, an aspect of the present invention provides a method for checking a power network topology, which is applied to a network system including a master station, branch gateways and user meter devices, wherein the master station is connected to at least two branch gateways, and each branch gateway is connected to at least one user meter device, the method including:
step S10, the master station sends configuration information to each household meter device through the branch gateway according to the preliminarily recognized topological structure, wherein the configuration information comprises the preset reporting time of each household meter device reporting device identification, and the preset reporting time of each household meter device in the same branch gateway is different; at least one predicted reporting time in different branch gateways is the same time;
step S11, each user meter device receives the configuration information forwarded by the branch gateway, and reports the device identification of itself to the corresponding branch gateway in the form of the waveform of the characteristic current when the preset reporting time is reached;
step S12, each branch gateway collects the received device identification and reporting time of the user meter device, and reports the device identification and reporting time to the master station together with the own identification of the branch gateway;
and step S13, the master station forms the current verification topological structure after receiving the device identifications of the user meter devices and the reporting time sent by all the branch gateways, and compares the current verification topological structure with the preliminarily identified topological structure to determine the final network topological structure.
Preferably, the step S10 further includes:
obtaining the branch gateways with the most user table devices in all the branch gateways;
configuring a prediction reporting time for each user meter device in the branch gateway with the most user meter devices, wherein the prediction reporting time configured by each branch gateway is different;
and selecting the predicted reporting time corresponding to the branch gateway with the most user table devices, and configuring each user table device in other branch gateways, wherein the preset reporting time of each user table device in the same branch gateway is different.
Preferably, the step S12 further includes:
and each branch gateway determines the time of receiving the equipment identifier reported by the user meter equipment as the reporting time.
Preferably, further comprising:
step S14, if the comparison result of the current verification topological structure is the same as the initially identified topological structure, taking the initially identified topological structure as the final network topological structure;
step S15, if the comparison result of the current verification topological structure is different from the initially identified topological structure, the step goes to step S10, and the verification processing process is carried out again to obtain the current verification topological structure; and determining a real topological structure according to the preliminarily identified topological structure, the check topological structure obtained in the previous check process and the current check topological structure.
Preferably, the step S15 further includes:
and if the preliminarily identified topological structure and the verified topological structure obtained in the previous verification process have the same topological structure, determining the same topological structure as the final network topological structure.
Correspondingly, as another aspect of the present invention, a verification system for a power network topology is further provided, which includes a master station, at least two branch gateways, and a plurality of user meter devices, where the master station is connected to the at least two branch gateways, and each branch gateway is connected to at least one user meter device; wherein:
the master station is used for issuing configuration information to each user meter device through the branch gateways according to the preliminarily identified topological structure, receiving device identifications of the user meter devices sent by all the branch gateways and reporting time, forming a current verification topological structure, comparing the current verification topological structure with the preliminarily identified topological structure, and determining a final network topological structure; the configuration information comprises the preset reporting time of each user meter device reporting device identification, and the preset reporting time of each user meter device in the same branch gateway is different; at least one predicted reporting time in different branch gateways is the same time;
each user meter device is used for receiving the configuration information forwarded by the branch gateway and reporting the device identification of the user meter device to the corresponding branch gateway in the form of the waveform of the characteristic current when the preset reporting time is up;
each branch gateway is used for forwarding the configuration information from the main station, collecting the received device identification and reporting time of the user meter device, and reporting the device identification and the reporting time to the main station together with the identification of the branch gateway.
Preferably, the master station further comprises:
the configuration information generation module is used for forming the configuration information of each user table device according to the preliminarily identified topological structure so as to send the configuration information to the corresponding user table device through the branch gateway;
the receiving module is used for receiving the device identification, the reporting time and the branch gateway identification of the user table device received by each branch gateway reported by each branch gateway;
the identification module is used for forming the verification topological structure based on the information reported by all the branch gateways;
and the comparison processing module is used for comparing the topological structure verified this time with the initially identified topological structure to obtain a final network topological structure.
Preferably, the configuration information generating module determines the configuration information of each user table device in the following manner:
obtaining the branch gateways with the most user table devices in all the branch gateways;
configuring a prediction reporting time for each user meter device in the branch gateway with the most user meter devices, wherein the prediction reporting time configured by each branch gateway is different;
and selecting the predicted reporting time corresponding to the branch gateway with the most user table devices, and configuring each user table device in other branch gateways, wherein the preset reporting time of each user table device in the same branch gateway is different.
Preferably, the comparison processing module further comprises:
a comparison unit, configured to compare the topology structure verified this time with the initially identified topology structure;
a first determining unit, configured to use the preliminarily identified topology as a final network topology when the structure result of the comparing unit is that the two are the same;
the second determining unit is used for triggering the inspection processing process to be carried out again when the structural results of the comparing unit are different from each other, so as to obtain the current verification topological structure; and determining a real topological structure according to the preliminarily identified topological structure, the check topological structure obtained in the previous check process and the current check topological structure.
Preferably, the second determination unit is further configured to:
and if the same topological structure exists in the preliminarily identified topological structure and the check topological structure obtained in the previous check process, determining the same topological structure as the final network topological structure.
The embodiment of the invention has the following beneficial effects:
the invention provides a method and a system for verifying network topology, which can improve the accuracy of the identified network topology by further verifying the network topology after obtaining the initial network topology.
Meanwhile, the master station configures at least one reporting time under different branch gateways to be the same time, so that the verification time can be greatly shortened, and the reporting of all the user meter devices can be completed only within the predicted reporting time corresponding to the branch gateway with the most user meter devices, so that the whole verification process is completed, the verification time is shortened, and the verification efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of a network topology verification method provided in the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a system for verifying a network topology according to the present invention;
FIG. 3 is a schematic diagram of the master station of FIG. 2;
fig. 4 is a schematic structural diagram of the comparison processing module in fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a verification method for a power network topology provided by the present invention is applied to a network system including a master station, branch gateways, and user meter devices, where the master station is connected to at least two branch gateways, and each branch gateway is connected to at least one user meter device. In this embodiment, the method includes:
step S10, the master station sends configuration information to each household meter device through the branch gateway according to the preliminarily recognized topological structure, wherein the configuration information comprises the preset reporting time of each household meter device reporting device identification, and the preset reporting time of each household meter device in the same branch gateway is different; at least one predicted reporting time in different branch gateways is the same time;
in a specific example, preferably, the step S10 further includes:
obtaining the branch gateways with the most user table devices in all the branch gateways; for example, in one example, a branch gateway a having four user table devices is selected;
configuring a prediction reporting time for each user meter device in the branch gateway with the most user meter devices, wherein the prediction reporting time configured by each branch gateway is different; in an example, the subscriber meter devices a1, a2, A3 and a4 under the branch gateway a are respectively configured to report information at times T1, T2, T3 and T4; in one example, the adjacent time differences among the T1, T2, T3 and T4 may be the same;
and selecting the predicted reporting time corresponding to the branch gateway with the most user table devices, and configuring each user table device in other branch gateways, wherein the preset reporting time of each user table device in the same branch gateway is different. In one example, the other breakout gateway B has two subscriber table devices B1, B2; branch C has 3 meter devices C1, C2, and C3. The user meter devices B1 and B2 can be respectively allocated with time T1 and time T2; and distributing time T2, time T3 and time T4 to household meter devices C1, C2 and C3 respectively;
step S11, each user meter device receives the configuration information forwarded by the branch gateway, and reports the device identification of itself to the corresponding branch gateway in the form of the waveform of the characteristic current when the preset reporting time is reached; specifically, the user meter device sends the characteristic current to the branch gateway in the form of a power line carrier, and the waveform of the characteristic current can be used as the characteristic information of the characteristic current, so that the device identifier represented by the characteristic current can be determined according to the waveform of the characteristic current.
Step S12, each branch gateway collects the received device identification and reporting time of the user meter device, and reports the device identification and reporting time to the master station together with the own identification of the branch gateway; specifically, the branch gateway determines the device identifier represented by the characteristic current according to the characteristic information of the characteristic current, so as to report the device identifier.
In a specific example, the step S12 further includes:
after receiving the device identifier, each branch gateway records the received device identifier and the time of receiving the device identifier, and the transmission time of the device identifier is ignored, so that the time of receiving the device identifier by the branch gateway can be used as the reporting time of the device identifier.
And step S13, the master station forms the current verification topological structure after receiving the device identifications of the user meter devices and the reporting time sent by all the branch gateways, and compares the current verification topological structure with the preliminarily identified topological structure to determine the final network topological structure. It is understood that, in the present embodiment, the network topology refers to the connection ordering relationship among the user table device, the branch gateway, and the user table device.
Step S14, if the comparison result of the current verification topological structure is the same as the initially identified topological structure, taking the initially identified topological structure as the final network topological structure;
step S15, if the comparison result of the current verification topological structure is different from the initially identified topological structure, the step goes to step S10, and the verification processing process is carried out again to obtain the current verification topological structure; and determining a real topological structure according to the preliminarily identified topological structure, the check topological structure obtained in the previous check process and the current check topological structure.
In a specific example, the step S15 further includes:
and if the preliminarily identified topological structure and the verified topological structure obtained in the previous verification process have the same topological structure, determining the same topological structure as the final network topological structure.
It can be understood that, in the embodiment of the present invention, after the preliminary network topology is obtained, the network topology is further verified, so that the accuracy of the network topology can be improved. In addition, because the master station configures at least one reporting time under different branch gateways to be the same time, compared with a scheme that each user table reports information according to different times, the verification time can be greatly shortened, and the reporting of all the user table devices can be completed only within the predicted reporting time corresponding to the branch gateway with the most user table devices, thereby completing the whole verification process.
Fig. 2 is a schematic structural diagram illustrating an embodiment of a verification system for a power network topology according to the present invention. Referring to fig. 3 to 4 together, in the present embodiment, the system includes: the system comprises a main station 1, at least two branch gateways 2 and a plurality of user meter devices 3, wherein the main station 1 is connected with the at least two branch gateways 2, and each branch gateway 2 is connected with at least one user meter device 3; more specifically, the master station 1 and the branch gateway 2 may communicate with each other in an RS485 bus manner, and the communication protocol is DLT645-2007 protocol. The master station 1 and the branch gateway 2, and the branch gateway 2 and the user meter device 3 can all adopt broadband power line carrier (HPLC carrier) communication. More specifically, wherein:
the master station 1 is configured to issue configuration information to each user meter device through a branch gateway according to the preliminarily identified topology structure, and is configured to form a current verification topology structure after receiving device identifiers and reporting time of the user meter devices sent by all the branch gateways, and compare the current verification topology structure with the preliminarily identified topology structure to determine a final network topology structure; the configuration information comprises the preset reporting time of each user meter device reporting device identification, and the preset reporting time of each user meter device in the same branch gateway is different; at least one predicted reporting time in different branch gateways is the same time;
each user meter device 3 is configured to receive the configuration information forwarded by the branch gateway, and report a device identifier of the user meter device to the corresponding branch gateway in the form of a waveform of the characteristic current when a preset reporting time is reached;
each branch gateway 2 is configured to forward the configuration information from the master station, collect the device identifier and the reporting time of the user meter device received by the branch gateway, and report the device identifier and the reporting time to the master station together with the identifier of the branch gateway itself.
As shown in fig. 3, in one example, the primary station 1 further includes:
a configuration information generating module 10, configured to form configuration information of each user meter device according to the preliminarily identified topology structure, so as to send the configuration information to the corresponding user meter device through the branch gateway;
specifically, the configuration information generating module 10 determines the configuration information of each user table device in the following manner:
obtaining the branch gateways with the most user table devices in all the branch gateways;
configuring a prediction reporting time for each user meter device in the branch gateway with the most user meter devices, wherein the prediction reporting time configured by each branch gateway is different;
and selecting the predicted reporting time corresponding to the branch gateway with the most user table devices, and configuring each user table device in other branch gateways, wherein the preset reporting time of each user table device in the same branch gateway is different.
A receiving module 11, configured to receive the device identifier, the reporting time, and the branch gateway identifier of the user meter device received by each branch gateway, where the device identifier, the reporting time, and the branch gateway identifier are reported by each branch gateway;
the identification module 12 is configured to form a current verification topology structure based on information reported by all the branch gateways;
and the comparison processing module 13 is configured to compare the topology structure verified this time with the initially identified topology structure, so as to obtain a final network topology structure.
As shown in fig. 4, the comparison processing module 13 further includes:
a comparing unit 130, configured to compare the topology checked this time with the initially identified topology;
a first determining unit 131, configured to, when the structure result of the comparing unit is that the two are the same, take the preliminarily identified topology as a final network topology;
a second determining unit 132, configured to trigger a new inspection process to obtain a current verification topology when the structure result of the comparing unit is that the two are different; and determining a real topological structure according to the preliminarily identified topological structure, the check topological structure obtained in the previous check process and the current check topological structure.
Specifically, in an example, the second determining unit 132 is further configured to:
and if the same topological structure exists in the preliminarily identified topological structure and the check topological structure obtained in the previous check process, determining the same topological structure as the final network topological structure.
The embodiment of the invention has the following beneficial effects:
the invention provides a method and a system for verifying network topology, which can improve the accuracy of the identified network topology by further verifying the network topology after obtaining the initial network topology.
Meanwhile, the master station configures at least one reporting time under different branch gateways to be the same time, so that the verification time can be greatly shortened, and the reporting of all the user meter devices can be completed only within the predicted reporting time corresponding to the branch gateway with the most user meter devices, so that the whole verification process is completed, the verification time is shortened, and the verification efficiency is improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention 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 invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. 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.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (10)

1. A method for checking power network topology is applied to a network system comprising a main station, branch gateways and user meter equipment, wherein the main station is connected with at least two branch gateways, and each branch gateway is connected with at least one user meter equipment, and the method comprises the following steps:
step S10, the master station sends configuration information to each household meter device through the branch gateway according to the preliminarily recognized topological structure, wherein the configuration information comprises the preset reporting time of each household meter device reporting device identification, and the preset reporting time of each household meter device in the same branch gateway is different; at least one predicted reporting time in different branch gateways is the same time;
step S11, each user meter device receives the configuration information forwarded by the branch gateway, and reports the device identification of itself to the corresponding branch gateway in the form of the waveform of the characteristic current when the preset reporting time is reached;
step S12, each branch gateway collects the received device identification and reporting time of the user meter device, and reports the device identification and reporting time to the master station together with the own identification of the branch gateway;
and step S13, the master station forms the current verification topological structure after receiving the device identifications of the user meter devices and the reporting time sent by all the branch gateways, and compares the current verification topological structure with the preliminarily identified topological structure to determine the final network topological structure.
2. The method of claim 1, wherein the step S10 further comprises:
obtaining the branch gateways with the most user table devices in all the branch gateways;
configuring a prediction reporting time for each user meter device in the branch gateway with the most user meter devices, wherein the prediction reporting time configured by each branch gateway is different;
and selecting the predicted reporting time corresponding to the branch gateway with the most user table devices, and configuring each user table device in other branch gateways, wherein the preset reporting time of each user table device in the same branch gateway is different.
3. The method of claim 2, wherein the step S12 further comprises:
and each branch gateway determines the time of receiving the equipment identifier reported by the user meter equipment as the reporting time.
4. The method of any of claims 1 to 3, further comprising:
step S14, if the comparison result of the current verification topological structure is the same as the initially identified topological structure, taking the initially identified topological structure as the final network topological structure;
step S15, if the comparison result of the current verification topological structure is different from the initially identified topological structure, the step goes to step S10, and the verification processing process is carried out again to obtain the current verification topological structure; and determining a real topological structure according to the preliminarily identified topological structure, the check topological structure obtained in the previous check process and the current check topological structure.
5. The method of claim 4, wherein the step S15 further comprises:
and if the preliminarily identified topological structure and the verified topological structure obtained in the previous verification process have the same topological structure, determining the same topological structure as the final network topological structure.
6. The power network topology verification system is characterized by comprising a master station, at least two branch gateways and a plurality of user meter devices, wherein the master station is connected with the at least two branch gateways, and each branch gateway is connected with at least one user meter device; wherein:
the master station is used for issuing configuration information to each user meter device through the branch gateways according to the preliminarily identified topological structure, receiving device identifications of the user meter devices sent by all the branch gateways and reporting time, forming a current verification topological structure, comparing the current verification topological structure with the preliminarily identified topological structure, and determining a final network topological structure; the configuration information comprises the preset reporting time of each user meter device reporting device identification, and the preset reporting time of each user meter device in the same branch gateway is different; at least one predicted reporting time in different branch gateways is the same time;
each user meter device is used for receiving the configuration information forwarded by the branch gateway and reporting the device identification of the user meter device to the corresponding branch gateway in the form of the waveform of the characteristic current when the preset reporting time is up;
each branch gateway is used for forwarding the configuration information from the main station, collecting the received device identification and reporting time of the user meter device, and reporting the device identification and the reporting time to the main station together with the identification of the branch gateway.
7. The system of claim 6, wherein the primary station further comprises:
the configuration information generation module is used for forming the configuration information of each user table device according to the preliminarily identified topological structure so as to send the configuration information to the corresponding user table device through the branch gateway;
the receiving module is used for receiving the device identification, the reporting time and the branch gateway identification of the user table device received by each branch gateway reported by each branch gateway;
the identification module is used for forming the verification topological structure based on the information reported by all the branch gateways;
and the comparison processing module is used for comparing the topological structure verified this time with the initially identified topological structure to obtain a final network topological structure.
8. The system of claim 7, wherein the configuration information generation module determines the configuration information for each user meter device in the following manner:
obtaining the branch gateways with the most user table devices in all the branch gateways;
configuring a prediction reporting time for each user meter device in the branch gateway with the most user meter devices, wherein the prediction reporting time configured by each branch gateway is different;
and selecting the predicted reporting time corresponding to the branch gateway with the most user table devices, and configuring each user table device in other branch gateways, wherein the preset reporting time of each user table device in the same branch gateway is different.
9. The system of any of claims 6 to 8, wherein the comparison processing module further comprises:
a comparison unit, configured to compare the topology structure verified this time with the initially identified topology structure;
a first determining unit, configured to use the preliminarily identified topology as a final network topology when the structure result of the comparing unit is that the two are the same;
the second determining unit is used for triggering the inspection processing process to be carried out again when the structural results of the comparing unit are different from each other, so as to obtain the current verification topological structure; and determining a real topological structure according to the preliminarily identified topological structure, the check topological structure obtained in the previous check process and the current check topological structure.
10. The system of claim 9, wherein the second determination unit is further to:
and if the same topological structure exists in the preliminarily identified topological structure and the check topological structure obtained in the previous check process, determining the same topological structure as the final network topological structure.
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