CN114257271B - Dual verification method and system for network topology - Google Patents
Dual verification method and system for network topology Download PDFInfo
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- CN114257271B CN114257271B CN202111515034.0A CN202111515034A CN114257271B CN 114257271 B CN114257271 B CN 114257271B CN 202111515034 A CN202111515034 A CN 202111515034A CN 114257271 B CN114257271 B CN 114257271B
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- 238000010586 diagram Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/544—Setting up communications; Call and signalling arrangements
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Abstract
The invention discloses a double verification method of power network topology, which comprises the following steps: step S10, the master station transmits configuration information to each user table device through a branch gateway according to the preliminarily identified topological structure; step S11, when the preset reporting time is reached, each user meter device reports the device identification of the user meter device to the corresponding branch gateway; step S12, each branch gateway fuses the waveform of the characteristic current reported by the user meter equipment received by the branch gateway and compares the waveform with a prestored reference fusion result; reporting the comparison result together with the identification of the branch gateway to the master station; and step S13, the master station analyzes the comparison results sent by all the branch gateways to determine the final network topology structure. The invention also discloses a corresponding system. By implementing the invention, the accuracy of the network topology verification can be improved, the verification time can be reduced, and the verification efficiency can be improved.
Description
Technical Field
The present invention relates to the field of topology identification technologies, and in particular, to a method and a system for dual verification of network topology.
Background
In an electrical power system, a bay refers to a power supply range or area of a (one) transformer. The identification of the network topology in the current station area is mainly that the device identification is sent to the branch gateway through the household table device, the branch gateway sends the branch gateway identification and the received device identification to the master station, and then the master station can determine the network topology according to the branch gateway identification and the device identification.
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 characterized by the characteristic current according to the characteristic information of the characteristic current, so that the reporting of the device identifier is realized. Specifically, the waveform of the characteristic current can be used as the characteristic information of the characteristic current, and the equipment identifier characterized by the characteristic current can 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 a characteristic current, the power system is easy to interfere with the characteristic current, so that the device identifier characterized by the characteristic current is inaccurate or has a situation of misidentification.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a double-checking method and system of network topology, which adopt a double-checking mechanism, can improve the accuracy of checking the network topology, reduce the checking time and improve the checking efficiency.
In order to solve the above technical problems, as one aspect of the present invention, a dual verification method of an electric power network topology is provided, which is applied to a network system including a master station, branch gateways and user table devices, wherein the master station is connected with at least two branch gateways, and each branch gateway is connected with at least one user table device, and the method includes:
step S10, the master station transmits configuration information to each user table device through a branch gateway according to the preliminarily identified topological structure, wherein the configuration information comprises preset reporting time of each user table device reporting device identifier, and the preset reporting time of each user table device in the same branch gateway is the same;
step S11, each user meter device receives the configuration information forwarded by the branch gateway, and reports 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 reached;
step S12, each branch gateway fuses the waveform of the characteristic current reported by the user meter equipment received by the branch gateway to obtain a current fusion result, and compares the current fusion result with a prestored reference fusion result; reporting the comparison result and the identification of the branch gateway to the master station;
and step S13, the master station analyzes the comparison results sent by all the branch gateways to determine the final network topology structure.
Preferably, the step S10 further includes:
the master station configures the same predicted reporting time for each user table device in each branch gateway according to the preliminarily identified topological structure; and the predicted reporting time corresponding to different branch gateways is the same.
Preferably, in the step S12, the reference fusion result is a fusion result of characteristic currents of each user table device under the current branch gateway determined according to the preliminarily identified topology structure;
and when the current fusion result is the same as the prestored reference fusion result or the approximation degree reaches a preset threshold value, judging that the comparison result is successful, otherwise, judging that the comparison result is unsuccessful.
In the step S12, the step S13 further includes:
if all the comparison results are successful, determining the preliminarily identified topological structure as a final network topological structure;
if the branch gateway with unsuccessful comparison result exists, the master station reconfigures different preset reporting time for the user table equipment of the branch gateway with unsuccessful comparison; and confirming the topology structure of the unsuccessful branch gateway according to the device identifier reported again by each user table device, thereby determining the final network topology structure.
Correspondingly, as another aspect of the invention, there is also provided a dual verification system of an electric power network topology, which comprises 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:
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 reached;
each branch gateway is used for forwarding configuration information from the master station, fusing the waveforms of the characteristic currents reported by the user table equipment received by the branch gateways to obtain a current fusion result, and comparing the current fusion result with a prestored reference fusion result; reporting the comparison result and the identification of the branch gateway to the master station;
the master station is used for issuing configuration information to each user table device through the branch gateway according to the preliminarily identified topological structure, and receiving and analyzing comparison results reported by all the branch gateways to determine a final network topological structure; the configuration information comprises preset reporting time for reporting the equipment identifier by each user table equipment.
Preferably, the primary station further comprises:
the configuration information generation module is used for forming configuration information of each user table device according to the preliminarily identified topological structure, and the preset reporting time of each user table device in the same branch gateway is the same so as to send the configuration information to the corresponding user table device through the branch gateway; reconfiguring different preset reporting time for the user table equipment of the unsuccessful branch gateway;
the receiving module is used for receiving the comparison result, the branch gateway identification and the equipment identification of the user table equipment reported by each branch gateway;
and the processing module is used for analyzing the comparison results sent by all the branch gateways and determining a final network topology structure by combining the equipment identification reported by the user table equipment.
In the step S12, the reference fusion result stored in the branch gateway is a fusion result of the characteristic currents of each user table device under the current branch gateway determined according to the preliminarily identified topology structure;
in the branch gateway, when the current fusion result is the same as the prestored reference fusion result or the approximation degree reaches a preset threshold value, the comparison result is judged to be successful, otherwise, the comparison result is judged to be unsuccessful.
In the step S12, the processing module further includes:
the first determining unit is used for determining the preliminarily identified topological structure as a final network topological structure when all comparison results are successful;
the second determining unit is used for controlling the configuration information generating module to reconfigure different preset reporting time for the user table equipment of the unsuccessful branch gateway when the branch gateway with the unsuccessful comparison result exists; and confirming the topology structure of the unsuccessful branch gateway according to the device identifier reported again by each user table device, thereby determining the final network topology structure.
The embodiment of the invention has the following beneficial effects:
the invention provides a double verification method and a system of network topology, which can improve the accuracy of the identified network topology by further verifying the network topology after obtaining the preliminary network topology.
In the embodiment of the invention, the master station configures the reporting time of each user table device under the same branch gateway to be the same time, so that the verification time can be shortened; at the branch gateway side, fusing the waveform of the characteristic current of the equipment identifier reported by each user meter equipment, comparing with a prestored reference fusion result, and reporting the comparison result to the master station; if all the comparison results are successful, determining the preliminary network topology as a final network topology structure; if the comparison result is unsuccessful, the master station only needs to check the user table equipment of the branch website with unsuccessful comparison result again; the invention sets double checking process, which can improve checking accuracy; meanwhile, after the first verification is successful, a secondary verification processing process is not needed, so that a verification result can be obtained quickly, and the verification time is reduced as a whole.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that it is within the scope of the invention to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
Fig. 1 is a schematic structural diagram of an embodiment of a dual verification method of network topology according to the present invention;
FIG. 2 is a schematic diagram illustrating a dual verification system for network topology according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the master station of FIG. 2;
fig. 4 is a schematic diagram of the structure of the processing module in fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 1, the dual verification method of the power network topology provided by the invention is applied to a network system comprising a master station, branch gateways and user meter devices, wherein the master station is connected with at least two branch gateways, and each branch gateway is connected with at least one user meter device. In this embodiment, the method includes:
step S10, the master station transmits configuration information to each user table device through a branch gateway according to the preliminarily identified topological structure, wherein the configuration information comprises preset reporting time of each user table device reporting device identifier, and the preset reporting time of each user table device in the same branch gateway is the same;
in a specific example, preferably, the step S10 further includes:
the master station configures the same predicted reporting time for each user table device in each branch gateway according to the preliminarily identified topological structure; it can be appreciated that in the embodiment of the present invention, the predicted reporting times corresponding to different branch gateways may be the same or different. In one example, all of the user table devices A1, A2, A3 and A4 under the branch gateway a are configured to report information at the time T1; the other branch gateway B is provided with two user table devices B1 and B2, and is configured to report information at the moment T2; the branch C is provided with 3 pieces of user table equipment C1, C2 and C3, and all the pieces of user table equipment are configured with T3 time reporting information; preferably, T1, T2 and T3 are the same; in other embodiments, at least two of T1, T2, and T3 may be different.
Step S11, each user meter device receives the configuration information forwarded by the branch gateway, and reports 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 reached; specifically, the household 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 fuses the waveform of the characteristic current reported by the user meter equipment received by the branch gateway to obtain a current fusion result, and compares the current fusion result with a prestored reference fusion result; reporting the comparison result and the identification of the branch gateway to the master station; in a specific example, a reference fusion result is stored in each branch gateway in advance, wherein the reference fusion result is a fusion result of characteristic currents of each user table device under the current branch gateway determined according to the preliminarily identified topological structure;
the step S12 further includes:
and after receiving the characteristic current waveform corresponding to the equipment identifier, each branch gateway performs fusion processing to form a current fusion result, compares the current fusion result with a reference fusion result, judges that the comparison result is successful when the current fusion result is the same as the pre-stored reference fusion result or the similarity reaches a preset threshold value, and judges that the comparison result is unsuccessful when the comparison result is not successful.
And step S13, the master station analyzes the comparison results sent by all the branch gateways to determine the final network topology structure.
In a specific example, the step S13 further includes:
if all the comparison results are successful, determining the preliminarily identified topological structure as a final network topological structure;
if the branch gateway with unsuccessful comparison result exists, the master station reconfigures different preset reporting time for the user table equipment of the branch gateway with unsuccessful comparison; and confirming the topology structure of the unsuccessful branch gateway according to the device identifier reported again by each user table device, thereby determining the final network topology structure.
Referring now to fig. 2, a schematic diagram of an embodiment of a dual verification system for a power network topology is shown. As shown in fig. 3 to 4 together, in this 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 the at least one user meter device 3; more specifically, the communication mode between the master station 1 and the branch gateway 2 can adopt an RS485 bus mode, and the communication protocol adopts a DLT645 2007 protocol. Broadband power line carrier (HPLC carrier) communication can be adopted between the master station 1 and the branch gateway 2, and between the branch gateway 2 and the user table device 3. More specifically, wherein:
each user table device 3 is configured to receive the configuration information forwarded by the branch gateway 2, and report its own device identifier to its corresponding branch gateway 2 in the form of a waveform of a characteristic current when a preset reporting time arrives;
each branch gateway 2 is used for forwarding configuration information from the master station 1, fusing the waveforms of the characteristic currents reported by the user table equipment 3 received by the branch gateways to obtain a current fusion result, and comparing the current fusion result with a prestored reference fusion result; reporting the comparison result and the identification of the branch gateway to the master station 1;
the master station 1 is configured to send configuration information to each user table device 3 through the branch gateway 2 according to the preliminarily identified topology structure, and is configured to receive and analyze comparison results reported by all the branch gateways 2, so as to determine a final network topology structure; the configuration information includes preset reporting time for each user table device 3 to report the device identifier.
The reference fusion result stored in the branch gateway 2 is a fusion result of characteristic currents of each user table device under the current branch gateway determined according to the preliminarily identified topological structure;
in the branch gateway 2, when the current fusion result is the same as the prestored reference fusion result or the approximation degree reaches a preset threshold value, the comparison result is judged to be successful, otherwise, the comparison result is judged to be unsuccessful.
As shown in fig. 3, in one example, the master station 1 further comprises:
the configuration information generating module 10 is configured to form configuration information of each user table device according to the preliminarily identified topology structure, where the preset reporting time of each user table device in the same branch gateway is the same, so as to send the configuration information to the corresponding user table device through the branch gateway; reconfiguring different preset reporting time for the user table equipment of the unsuccessful branch gateway;
the receiving module 11 is configured to receive a comparison result, a branch gateway identifier, and an equipment identifier of the user table equipment, where the comparison result is reported by each branch gateway;
the processing module 12 analyzes the comparison results sent by all branch gateways, and determines the final network topology structure by combining the device identifications reported by the user table devices
As shown in fig. 4, the processing module 12 further includes:
a first determining unit 120, configured to determine the preliminarily identified topology structure as a final network topology structure when all comparison results are successful;
a second determining unit 121, configured to control the configuration information generating module to reconfigure different preset reporting times for the user table devices of the branch gateways that are unsuccessful when there is a branch gateway that is unsuccessful in comparison; and confirming the topology structure of the unsuccessful branch gateway according to the device identifier reported again by each user table device, thereby determining the final network topology structure.
For more details, reference is made to the foregoing description of fig. 1, and details are not repeated here.
The embodiment of the invention has the following beneficial effects:
the invention provides a double verification method and a system of network topology, which can improve the accuracy of the identified network topology by further verifying the network topology after obtaining the preliminary network topology.
In the embodiment of the invention, the master station configures the reporting time of each user table device under the same branch gateway to be the same time, so that the verification time can be shortened; at the branch gateway side, fusing the waveform of the characteristic current of the equipment identifier reported by each user meter equipment, comparing with a prestored reference fusion result, and reporting the comparison result to the master station; if all the comparison results are successful, determining the preliminary network topology as a final network topology structure; if the comparison result is unsuccessful, the master station only needs to check the user table equipment of the branch website with unsuccessful comparison result again; the invention sets double checking process, which can improve checking accuracy; meanwhile, after the first verification is successful, a secondary verification processing process is not needed, so that a verification result can be obtained quickly, and the verification time is reduced as a whole.
It will be apparent to those skilled in the art that 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 flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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.
The above disclosure is only a preferred embodiment of the present invention, and it is needless to say that the scope of the invention is not limited thereto, and therefore, the equivalent changes according to the claims of the present invention still fall within the scope of the present invention.
Claims (7)
1. The utility model provides a dual check method of power network topology, is applied to the network system that includes master station, branch gateway and family table equipment, wherein, the master station is connected with at least two branch gateways, and every branch gateway connects at least one family table equipment, its characterized in that, the method includes:
step S10, the master station transmits configuration information to each user table device through a branch gateway according to the preliminarily identified topological structure, wherein the configuration information comprises preset reporting time of each user table device reporting device identifier, and the preset reporting time of each user table device in the same branch gateway is the same;
step S11, each user meter device receives the configuration information forwarded by the branch gateway, and reports 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 reached;
step S12, each branch gateway fuses the waveform of the characteristic current reported by the user meter equipment received by the branch gateway to obtain a current fusion result, and compares the current fusion result with a prestored reference fusion result; reporting the comparison result and the identification of the branch gateway to the master station;
and step S13, the master station analyzes the comparison results sent by all the branch gateways to determine the final network topology structure.
2. The method according to claim 1, wherein in the step S12, the reference fusion result is a fusion result of characteristic currents of each user table device under the current branch gateway determined according to the preliminarily identified topology;
and when the current fusion result is the same as the prestored reference fusion result or the approximation degree reaches a preset threshold value, judging that the comparison result is successful, otherwise, judging that the comparison result is unsuccessful.
3. The method of claim 2, wherein the step S13 further comprises:
if all the comparison results are successful, determining the preliminarily identified topological structure as a final network topological structure;
if the branch gateway with unsuccessful comparison result exists, the master station reconfigures different preset reporting time for the user table equipment of the branch gateway with unsuccessful comparison; and confirming the topology structure of the unsuccessful branch gateway according to the device identifier reported again by each user table device, thereby determining the final network topology structure.
4. The double checking system of the power network topology 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:
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 reached; the preset reporting time of each user table device in the same branch gateway is the same;
each branch gateway is used for forwarding configuration information from the master station, fusing the waveforms of the characteristic currents reported by the user table equipment received by the branch gateways to obtain a current fusion result, and comparing the current fusion result with a prestored reference fusion result; reporting the comparison result and the identification of the branch gateway to the master station;
the master station is used for issuing configuration information to each user table device through the branch gateway according to the preliminarily identified topological structure, and receiving and analyzing comparison results reported by all the branch gateways to determine a final network topological structure; the configuration information comprises preset reporting time for reporting the equipment identifier by each user table equipment.
5. The system of claim 4, wherein the reference fusion result stored in the branch gateway is a fusion result of characteristic currents of each user table device under the current branch gateway determined according to the preliminarily identified topology;
in the branch gateway, when the current fusion result is the same as the prestored reference fusion result or the approximation degree reaches a preset threshold value, the comparison result is judged to be successful, otherwise, the comparison result is judged to be unsuccessful.
6. The system of claim 5, wherein the master station further comprises:
the configuration information generation module is used for forming configuration information of each user table device according to the preliminarily identified topological structure, and the preset reporting time of each user table device in the same branch gateway is the same so as to send the configuration information to the corresponding user table device through the branch gateway; reconfiguring different preset reporting time for the user table equipment of the unsuccessful branch gateway;
the receiving module is used for receiving the comparison result of each branch gateway, the branch gateway identification and the equipment identification of the user table equipment reported by each branch gateway;
and the processing module is used for analyzing the comparison results sent by all the branch gateways and determining a final network topology structure by combining the equipment identification reported by the user table equipment.
7. The system of claim 6, wherein the processing module further comprises:
the first determining unit is used for determining the preliminarily identified topological structure as a final network topological structure when all comparison results are successful;
the second determining unit is used for controlling the configuration information generating module to reconfigure different preset reporting time for the user table equipment of the unsuccessful branch gateway when the branch gateway with the unsuccessful comparison result exists; and confirming the topology structure of the unsuccessful branch gateway according to the device identifier reported again by each user table device, thereby determining the final network topology structure.
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| CN112491135A (en) * | 2020-10-26 | 2021-03-12 | 国电南瑞南京控制系统有限公司 | Power carrier and information fusion-based method and system for identifying low-voltage topology in power distribution network |
| CN112671584A (en) * | 2020-12-25 | 2021-04-16 | 深圳深宝电器仪表有限公司 | Network topology identification method, device, system and storage medium |
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| US10999151B2 (en) * | 2019-09-16 | 2021-05-04 | Juniper Networks, Inc | Apparatus, system, and method for topology discovery across geographically redundant gateway devices |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112491135A (en) * | 2020-10-26 | 2021-03-12 | 国电南瑞南京控制系统有限公司 | Power carrier and information fusion-based method and system for identifying low-voltage topology in power distribution network |
| CN112671584A (en) * | 2020-12-25 | 2021-04-16 | 深圳深宝电器仪表有限公司 | Network topology identification method, device, system and storage medium |
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