CN107689817B - Method and system for identifying phase of subscriber station area - Google Patents
Method and system for identifying phase of subscriber station area Download PDFInfo
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- CN107689817B CN107689817B CN201710915850.8A CN201710915850A CN107689817B CN 107689817 B CN107689817 B CN 107689817B CN 201710915850 A CN201710915850 A CN 201710915850A CN 107689817 B CN107689817 B CN 107689817B
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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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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/5433—Remote metering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5466—Systems for power line communications using three phases conductors
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Abstract
The invention discloses a method and a system for identifying the phase of a subscriber station area, which can be applied to a communication node of a power supply station area, wherein the method comprises the steps of obtaining A, B, C three-phase information of the power supply station area; and determining the phase of the communication node based on the A, B, C three-phase information of the power supply area, so that the phase identification of the communication node of the power supply area is realized, and finally reporting the phase of the communication node. Therefore, the scheme of the invention can be used for identifying the installation phase of the carrier communication node in the power supply area, and further can provide support for routing selection of low-voltage carrier communication, network topology of the power distribution area and three-phase imbalance management.
Description
Technical Field
The invention belongs to the technical field of power line carrier communication, and particularly relates to a method and a system for identifying a phase of a subscriber station area.
Background
In the field of electric power, along with the increasingly widespread use of electronic electric energy meters/electric energy meters in charging systems and the popularization of power line carrier communication technology at home and abroad, the proportion of power line carrier communication modes in all communication modes of meter reading systems is continuously expanded. According to the communication mode, the power lines which are distributed everywhere at present are used as communication channels, rewiring is not needed, a large amount of manpower and material resources can be saved, and therefore the power carrier meter reading is the most consistent automatic meter reading scheme for the characteristics of the power system at present.
The power line carrier communication meter reading system generally includes: the system comprises a main station, a concentrator and a communication node comprising various carrier meters and carrier collectors. The power line carrier communication meter reading System is a communication Network which takes a low-voltage power grid as a main communication channel and takes GPRS (General Packet Radio Service), GSM (Global System for Mobile communication), PSTN (Public Switched Telephone Network), CDMA (Code Division Multiple Access) and other Public communication channels and part of RS485 bus channels as auxiliary communication channels. The main line of the low-voltage distribution network generally adopts a three-phase four-wire system for power supply, most communication nodes in the power line carrier communication meter reading system are supplied with power in a single phase, such as a single-phase electric energy meter, and for low-voltage carrier communication, when the communication nodes are in cross-phase communication, a signal transmission path is lengthened and noise is increased, so that when the low-voltage carrier communication is in route selection, the communication nodes in the same phase are selected as far as possible for relay communication, interference is reduced, and communication quality is guaranteed.
However, for a power distribution area, the power management department does not have to make a mandatory requirement for counting the installation phase of the power consumer node, and it is difficult to correctly count the installation phase of each carrier communication node in the installation construction process and the communication node archive process.
Disclosure of Invention
In view of this, the present invention provides a method and a system for identifying a phase of a subscriber station area, which are used to identify an installation phase of a carrier communication node in a power supply station area, and further provide support for routing of low-voltage carrier communication, network topology of a power distribution station area, and three-phase imbalance management.
Therefore, the invention discloses the following technical scheme:
a method for identifying a subscriber station area phase is applied to a communication node of a power supply station area, and comprises the following steps:
a, B, C three-phase information of a power supply area where the communication node is located is obtained;
determining the phase of the communication node based on A, B, C three-phase information of a power supply area where the communication node is located;
and reporting the phase of the communication node.
Preferably, the obtaining A, B, C three-phase information of the power supply station area where the communication node is located includes:
receiving A, B, C three-phase information of a power supply area transmitted by a concentrator of the power supply area where the communication node is located in a broadcasting mode.
Preferably, the determining the phase of the communication node based on the A, B, C three-phase information of the power supply station area where the communication node is located includes:
comparing the phase information of the communication node with A, B, C three-phase information of the power supply area, and determining the phase of the communication node based on the comparison result;
the comparing the phase information of the communication node with the A, B, C three-phase information of the power supply area, and determining the phase of the communication node based on the comparison result specifically includes:
acquiring first phase information of a current zero crossing point sent by a concentrator;
judging whether the communication node crosses zero within a preset time length, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is the first phase, otherwise, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is a phase which is not the first phase;
the first phase is any one of the A, B, C three-phase phases.
Preferably, in the method, the reporting the phase of the communication node includes:
and reporting the phase of the communication node to the concentrator.
Preferably, the method further includes, before determining the phase of the communication node based on the A, B, C three-phase information of the power supply station area where the communication node is located:
and carrying out predetermined forwarding processing on the A, B, C three-phase information of the power supply area.
The performing of the predetermined forwarding processing on the A, B, C three-phase information of the power supply area includes:
forwarding A, B, C three-phase information of the power supply area in a carrier communication mode;
judging whether confirmation information fed back by other communication nodes is received; when receiving A, B, C three-phase information of the power supply area, the other communication nodes feed back corresponding confirmation information;
if the judgment result shows that the power supply station area does not receive the power supply station area, transmitting A, B, C three-phase information of the power supply station area again in a wireless communication mode; if the judgment result indicates receiving, the forwarding is finished.
A subscriber station phase identification system comprising:
the concentrator is used for sending A, B, C three-phase information of a power supply area where the concentrator is located;
and the identifier is arranged corresponding to the corresponding communication node in the power supply area, is arranged in a power supply line where the communication node is positioned, and is used for receiving A, B, C three-phase information of the power supply area, determining the phase of the communication node based on A, B, C three-phase information of the power supply area, and reporting the phase of the communication node to the concentrator.
Preferably, in the above system, the concentrator sends A, B, C three-phase information of a power supply station area where the concentrator is located, and specifically includes:
a, B, C three-phase information of the power supply station area transmitted by the concentrator in a broadcast manner.
In the above system, preferably, the identifier determines the phase of the communication node based on A, B, C three-phase information of the power supply area, and specifically includes:
the identifier compares the phase information of the communication node with A, B, C three-phase information of the power supply area, and determines the phase of the communication node based on the comparison result;
the identifier compares the phase information of the communication node with A, B, C three-phase information of the power supply area, and determines the phase of the communication node based on a comparison result, including:
acquiring first phase information of a current zero crossing point sent by a concentrator; judging whether the communication node crosses zero within a preset time length, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is the first phase, otherwise, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is a phase which is not the first phase;
the first phase is any one of the A, B, C three-phase phases.
In the system, preferably, the identifier is a carrier wireless dual-mode communication terminal, and the carrier wireless dual-mode communication terminal is installed at a user side;
the carrier wireless dual-mode communication terminal, before determining the phase of the communication node based on the A, B, C three-phase information of the power supply area, is further configured to: carrying out predetermined forwarding processing on A, B, C three-phase information of the power supply area;
the carrier wireless dual-mode communication terminal performs predetermined forwarding processing on A, B, C three-phase information of the power supply station area, and specifically includes:
forwarding A, B, C three-phase information of the power supply area in a carrier communication mode;
judging whether confirmation information fed back by other communication nodes is received; when receiving A, B, C three-phase information of the power supply area, the other communication nodes feed back corresponding confirmation information;
if the judgment result shows that the power supply station area does not receive the power supply station area, transmitting A, B, C three-phase information of the power supply station area again in a wireless communication mode; if the judgment result indicates receiving, the forwarding is finished.
The above system, preferably, the concentrator is further configured to:
and calling the phase information of each communication node in the power supply area where the concentrator is located according to a preset calling frequency at regular time, and reporting the phase information to the master station.
According to the scheme, the method and the system for identifying the phase of the subscriber station area can be applied to the communication node of the power supply station area, and the method is used for obtaining A, B, C three-phase information of the power supply station area; and determining the phase of the communication node based on the A, B, C three-phase information of the power supply area, so that the phase identification of the communication node of the power supply area is realized, and finally reporting the phase of the communication node. Therefore, the scheme of the invention can be used for identifying the installation phase of the carrier communication node in the power supply area, and further can provide support for routing selection of low-voltage carrier communication, network topology of the power distribution area and three-phase imbalance management.
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 described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for identifying a subscriber station area phase according to an embodiment of the present invention;
fig. 2 is another flowchart of a method for identifying a subscriber station area phase according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a subscriber station phase identification system according to an embodiment of the present invention;
fig. 4 is another schematic structural diagram of a subscriber station phase identification system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a method for identifying a phase of a subscriber station area, which can be applied to communication nodes (such as carrier communication nodes of an electric energy meter and the like) of a power supply station area, and more particularly, the method can be applied to but not limited to corresponding identifiers arranged in the power supply station area corresponding to the communication nodes, and the identifiers and the communication nodes are arranged in a power supply line where the communication nodes are located, so as to identify the installation phase of the carrier communication nodes in the power supply station area and further provide support for routing of low-voltage carrier communication.
Referring to fig. 1, a flow chart of a subscriber station phase identification method is provided, which may include the steps of:
The present embodiment transmits A, B, C three-phase information of a power supply station area by broadcasting using a concentrator in the power supply station area.
Therefore, the identifier provided in the power supply station area corresponding to the communication node can obtain A, B, C three-phase information of the power supply station area in which the communication node is located by receiving the broadcast information of the concentrator.
Specifically, in the present embodiment, when A, B, C three-phase information of the power supply station area in which the concentrator is located is broadcast by the concentrator, and the broadcast information of the concentrator is received by the identifier of the communication node, it is preferable to transmit or receive the broadcast information by using a power line carrier communication method.
And 102, determining the phase of the communication node based on A, B, C three-phase information of the power supply station area where the communication node is located.
When the identifier of the communication node (such as a communication node of an electric energy meter and the like) in the power supply area receives A, B, C three-phase information of the power supply area broadcast by the concentrator, the phase information of the communication node is compared with A, B, C three-phase information of the power supply area, and the phase information of the communication node is specifically determined to be consistent with the phase information of which phase of the power supply area, wherein the phase consistent with the phase information of the communication node in A, B, C three-phase of the power supply area is the phase of the communication node, so that the installation phase of the communication node is identified.
In specific implementation, the phase of the user communication node can be identified based on the above phase comparison idea through the following processes:
1) the concentrator detects the zero crossings of the three phases of its station A, B, C and transmits the phase information of a phase in a broadcast manner when a zero crossing of a phase, such as the first phase, is detected.
Wherein the first phase is any one of the A, B, C three-phase phases.
Taking the detection of the a-phase zero-crossing point as an example, when the concentrator detects that the current time is the a-phase zero-crossing point, the concentrator sends the a-phase information by using a broadcast message, wherein the broadcast message may be sent in a carrier or wireless manner.
2) The recognizer obtains first phase information of a current zero crossing point sent by the concentrator; and judging whether the communication node has zero crossing within a preset time length.
And if the judgment result shows that zero crossing occurs, the installation phase of the communication node is the first phase, so that the phase of the communication node is identified.
Otherwise, if the judgment result shows that zero crossing does not occur, the installation phase of the communication node is a phase which is not the first phase; the phase of the communication node can then be identified in the manner described above by continuing to receive phase information for other phases broadcast by the concentrator.
The predetermined time period may be set according to an actual requirement, and may be set to 1ms, for example.
And step 103, reporting the phase of the communication node.
After the phase of the communication node is identified based on the A, B, C three-phase information of the power supply area, the identified phase of the communication node can be reported to the concentrator of the power supply area, so that the phase of each communication node included in the power supply area can be collected in the concentrator of the power supply area, and support can be provided for routing of low-voltage carrier communication (selecting the same-phase communication node as far as possible for relay communication).
In addition, in specific implementation, the concentrator may periodically recall, according to a preset recall frequency, phase information of each communication node in the power supply station area where the concentrator is located, and report the phase information to the master station, so as to provide support for routing of low-voltage carrier communication.
Specifically, the summoning frequency may be set according to actual requirements, for example, may be set to 10 minutes, that is, the concentrator executes a summoning operation every 10 minutes, and collects phase information of all users in the distribution area and reports the collected phase information to the master station.
According to the scheme, the identification method of the subscriber station area phase can be applied to the communication node of the power supply station area, and the method obtains A, B, C three-phase information of the power supply station area; and determining the phase of the communication node based on the A, B, C three-phase information of the power supply area, so that the phase identification of the communication node of the power supply area is realized, and finally reporting the phase of the communication node. Therefore, the scheme of the invention can be used for identifying the installation phase of the carrier communication node in the power supply area, and further can provide support for routing selection of low-voltage carrier communication, network topology of the power distribution area and three-phase imbalance management.
In the following embodiment of the present invention, referring to another flowchart of the subscriber station area phase identification method provided in fig. 2, the method may further include, before the step 102:
step 102', the A, B, C three-phase information of the power supply area is subjected to predetermined forwarding processing.
In this embodiment, the identifier, which is disposed corresponding to the communication node and is used to identify the phase of the communication node, is specifically a carrier wireless dual-mode communication terminal, as the name implies, the terminal has functions of power carrier communication and wireless communication, that is, the carrier wireless dual-mode communication terminal can not only identify the phase of the corresponding communication node, but also transmit and receive communication data in a carrier and wireless dual-mode communication manner.
The carrier wireless dual-mode communication terminal is arranged at a user side.
On this basis, in this embodiment, after the carrier wireless dual-mode communication terminal of the communication node obtains the A, B, C three-phase information of the power supply station area where the communication node is located, if the broadcast information of the concentrator of the power supply station area where the communication node is located is received, the broadcast information is sent or forwarded once through the carrier communication mode and by a broadcast means, and it is determined whether the confirmation information returned by another node (for example, the carrier wireless dual-mode communication terminal corresponding to another communication node) is received within a predetermined time period thereafter, and if the confirmation information of another node is received, it indicates that a nearby node receives the broadcast information, so that the data forwarding based on the carrier communication mode is successful this time, and the information does not need to be forwarded continuously.
Otherwise, if the confirmation information of other nodes is not received, it indicates that the data forwarding based on the carrier communication mode is not successful, for example, the forwarding fails due to the instability of the carrier signal, and in this case, the carrier wireless dual-mode communication terminal forwards (may also adopt a broadcast mode) the message again through the wireless communication mode. After the data forwarding of the broadcast information is completed by using the carrier wireless dual-mode communication terminal, the phase identification of the communication node can be continuously performed by using the carrier wireless dual-mode communication terminal.
In this embodiment, data forwarding is performed by using a carrier wireless dual-mode communication terminal, which aims to improve a receiving rate of A, B, C three-phase information of each node (e.g., a carrier wireless dual-mode communication terminal corresponding to each communication node) in a power supply station area to the power supply station area, so that all nodes in the power supply station area can obtain the three-phase information of the station area as much as possible, and a basis can be provided for phase identification of each node.
It should be noted that, in practical applications, when the carrier wireless dual-mode communication terminal is used for performing data forwarding and phase identification processing, the execution order provided in this embodiment is not limited to the execution order of performing data forwarding before performing phase identification, and the processing procedures of the two may also be completed according to other orders, for example, the two are executed simultaneously, or the phase identification is performed first and then the data forwarding is performed, which is not limited in this embodiment.
In another embodiment of the present invention, a system for identifying a phase of a subscriber station area is provided, where the system is applicable to a power supply station area, and is intended to identify an installation phase of a carrier communication node in the power supply station area, so as to provide support for routing of low-voltage carrier communication. Referring to fig. 3, a schematic diagram of a subscriber station phase identification system is shown, which may include:
the concentrator 100 is used for sending A, B, C three-phase information of a power supply area where the concentrator is located; the identifier 200 is arranged corresponding to a corresponding communication node in the power supply area, is arranged in a power supply line where the communication node is located, and is configured to receive A, B, C three-phase information of the power supply area, determine a phase of the communication node based on A, B, C three-phase information of the power supply area, and report the phase of the communication node to the concentrator.
In an implementation manner of the embodiment of the present invention, the sending, by the concentrator, A, B, C three-phase information of a power supply station area where the concentrator is located specifically includes: a, B, C three-phase information of the power supply station area transmitted by the concentrator in a broadcast manner.
In an implementation manner of the embodiment of the present invention, the determining, by the identifier, the phase of the communication node based on the A, B, C three-phase information of the power supply station area specifically includes: the identifier compares the phase information of the communication node with A, B, C three-phase information of the power supply area, and determines the phase of the communication node based on the comparison result.
The identifier compares the phase information of the communication node with A, B, C three-phase information of the power supply area, and determines the phase of the communication node based on a comparison result, including:
acquiring first phase information of a current zero crossing point sent by a concentrator; judging whether the communication node crosses zero within a preset time length, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is the first phase, otherwise, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is a phase which is not the first phase;
the first phase is any one of the A, B, C three-phase phases.
In an implementation manner of the embodiment of the present invention, referring to another schematic structural diagram of the subscriber station area phase identification system shown in fig. 4, the identifier 200 is a carrier wireless dual-mode communication terminal 201, and the carrier wireless dual-mode communication terminal is installed at a subscriber side.
The carrier wireless dual-mode communication terminal, before determining the phase of the communication node based on the A, B, C three-phase information of the power supply area, is further configured to: and carrying out predetermined forwarding processing on the A, B, C three-phase information of the power supply area.
The carrier wireless dual-mode communication terminal performs predetermined forwarding processing on A, B, C three-phase information of the power supply station area, and specifically includes:
forwarding A, B, C three-phase information of the power supply area in a carrier communication mode;
judging whether confirmation information fed back by other communication nodes is received; when receiving A, B, C three-phase information of the power supply area, the other communication nodes feed back corresponding confirmation information;
if the judgment result shows that the power supply station area does not receive the power supply station area, transmitting A, B, C three-phase information of the power supply station area again in a wireless communication mode; if the judgment result indicates receiving, the forwarding is finished.
In an implementation manner of the embodiment of the present invention, the concentrator is further configured to: and calling the phase information of each communication node in the power supply area where the concentrator is located according to a preset calling frequency at regular time, and reporting the phase information to the master station.
For the identification system of the subscriber station phase disclosed in the embodiment of the present invention, since it corresponds to the identification method of the subscriber station phase disclosed in each embodiment above, the description is relatively simple, and for the relevant similarities, please refer to the description of the identification method of the subscriber station phase in each embodiment above, and the detailed description is omitted here.
In summary, the method and system for identifying the subscriber station phase provided by the present invention have the following advantages: 1) the phase of the subscriber station area (namely the phase of the subscriber carrier communication node) can be identified, so that support is provided for the routing of low-voltage carrier communication; 2) the invention adopts a carrier wireless dual-mode communication mode, can better solve the problems that carrier signals are unstable and data cannot be normally sent, and when the carrier signals are unstable, the data are continuously sent by adopting a wireless communication mode, thereby effectively improving the reliability of communication and ensuring timely and accurate acquisition of phase information of a user station area; 3) it is convenient to carry out the fault location, compares in prior art, when the power line broke down, can fix a position which phase place in A, B, C three-phase place had broke down to can overhaul the phase place circuit that has the trouble, and the phase place circuit that does not have the trouble then can carry out normal power supply.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
For convenience of description, the above system or apparatus is described as being divided into various modules or units by function, respectively. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.
Finally, it is further noted that, herein, relational terms such as first, second, third, fourth, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A method for identifying a phase of a subscriber station area is applied to a communication node of a power supply station area, and the method comprises the following steps:
a, B, C three-phase information of a power supply area where the communication node is located is obtained;
determining the phase of the communication node based on A, B, C three-phase information of a power supply area where the communication node is located;
reporting the phase of the communication node;
before determining the phase of the communication node based on the A, B, C three-phase information of the power supply station area where the communication node is located, the method further includes: carrying out predetermined forwarding processing on A, B, C three-phase information of the power supply area;
the performing of the predetermined forwarding processing on the A, B, C three-phase information of the power supply area includes:
forwarding A, B, C three-phase information of the power supply area in a carrier communication mode;
judging whether confirmation information fed back by other communication nodes is received; when receiving A, B, C three-phase information of the power supply area, the other communication nodes feed back corresponding confirmation information;
if the judgment result shows that the power supply station area does not receive the power supply station area, transmitting A, B, C three-phase information of the power supply station area again in a wireless communication mode; if the judgment result indicates receiving, the forwarding is finished.
2. The method of claim 1, wherein obtaining A, B, C three-phase information of a power supply area in which the communication node is located comprises:
receiving A, B, C three-phase information of a power supply area transmitted by a concentrator of the power supply area where the communication node is located in a broadcasting mode.
3. The method of claim 2, wherein determining the phase of the communication node based on A, B, C three-phase information of the power supply area where the communication node is located comprises:
comparing the phase information of the communication node with A, B, C three-phase information of the power supply area, and determining the phase of the communication node based on the comparison result;
the comparing the phase information of the communication node with the A, B, C three-phase information of the power supply area, and determining the phase of the communication node based on the comparison result specifically includes:
acquiring first phase information of a current zero crossing point sent by a concentrator;
judging whether the communication node crosses zero within a preset time length, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is the first phase, otherwise, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is a phase which is not the first phase;
the first phase is any one of the A, B, C three-phase phases.
4. The method of claim 2, wherein reporting the phase of the communication node comprises:
and reporting the phase of the communication node to the concentrator.
5. A subscriber station area phase identification system, comprising:
the concentrator is used for sending A, B, C three-phase information of a power supply area where the concentrator is located;
the identifier is arranged corresponding to the corresponding communication node in the power supply area, is arranged in a power supply line where the communication node is located, and is used for receiving A, B, C three-phase information of the power supply area, determining the phase of the communication node based on A, B, C three-phase information of the power supply area, and reporting the phase of the communication node to the concentrator;
the identifier is a carrier wireless dual-mode communication terminal, and the carrier wireless dual-mode communication terminal is installed at a user side;
the carrier wireless dual-mode communication terminal, before determining the phase of the communication node based on the A, B, C three-phase information of the power supply area, is further configured to: carrying out predetermined forwarding processing on A, B, C three-phase information of the power supply area;
the carrier wireless dual-mode communication terminal performs predetermined forwarding processing on A, B, C three-phase information of the power supply station area, and specifically includes:
forwarding A, B, C three-phase information of the power supply area in a carrier communication mode;
judging whether confirmation information fed back by other communication nodes is received; when receiving A, B, C three-phase information of the power supply area, the other communication nodes feed back corresponding confirmation information;
if the judgment result shows that the power supply station area does not receive the power supply station area, transmitting A, B, C three-phase information of the power supply station area again in a wireless communication mode; if the judgment result indicates receiving, the forwarding is finished.
6. The system according to claim 5, wherein the concentrator sends A, B, C three-phase information of a power supply station area where the concentrator is located, and specifically includes:
a, B, C three-phase information of the power supply station area transmitted by the concentrator in a broadcast manner.
7. The system of claim 5, wherein the identifier determines the phase of the communication node based on A, B, C three-phase information of the power supply location, including:
the identifier compares the phase information of the communication node with A, B, C three-phase information of the power supply area, and determines the phase of the communication node based on the comparison result;
the identifier compares the phase information of the communication node with A, B, C three-phase information of the power supply area, and determines the phase of the communication node based on a comparison result, including:
acquiring first phase information of a current zero crossing point sent by a concentrator; judging whether the communication node crosses zero within a preset time length, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is the first phase, otherwise, if the judgment result shows that the communication node crosses zero, the installation phase of the communication node is a phase which is not the first phase;
the first phase is any one of the A, B, C three-phase phases.
8. The system of any of claims 5-7, wherein the concentrator is further configured to:
and calling the phase information of each communication node in the power supply area where the concentrator is located according to a preset calling frequency at regular time, and reporting the phase information to the master station.
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| CN110380511A (en) * | 2018-04-13 | 2019-10-25 | 重庆世纪之光科技实业有限公司 | A kind of recognition methods of platform area and equipment based on phase sequence switching |
| CN108535599B (en) * | 2018-04-16 | 2020-06-30 | 国网河南省电力公司电力科学研究院 | Low-voltage transformer area user phase identification method based on voltage curve clustering analysis |
| CN108519514A (en) * | 2018-04-24 | 2018-09-11 | 宁波三星医疗电气股份有限公司 | Taiwan area phase recognition methods based on Pearson correlation coefficient algorithm |
| CN108683180B (en) * | 2018-05-07 | 2020-06-19 | 国网河南省电力公司电力科学研究院 | Three-phase low-voltage power distribution network topology reconstruction method |
| CN110874916B (en) * | 2018-08-31 | 2020-11-24 | 重庆曼龙科技有限公司 | Phase switching-based station area subscriber-to-substation relationship identification method |
| CN109256856B (en) * | 2018-09-06 | 2020-07-03 | 石家庄科林电气股份有限公司 | Power line broadband carrier (HPLC) based station area topology identification system and method |
| CN109217471B (en) * | 2018-09-19 | 2020-07-03 | 北京国电通网络技术有限公司 | Identification device for network topology of low-voltage distribution station area |
| CN109378898B (en) * | 2018-09-30 | 2022-06-17 | 国网天津市电力公司电力科学研究院 | Intelligent regulation and control system and method for distribution transformer area |
| CN109327242B (en) * | 2018-10-29 | 2022-05-10 | 国网北京市电力公司 | Identification method and device for transformer area of electric energy meter |
| CN109581084A (en) * | 2018-11-29 | 2019-04-05 | 宁波三星医疗电气股份有限公司 | Platform area phase recognition methods based on the degree of association |
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