CN110365367A - A kind of network-building method of electric line carrier communication, device, equipment and medium - Google Patents
A kind of network-building method of electric line carrier communication, device, equipment and medium Download PDFInfo
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- CN110365367A CN110365367A CN201910740607.6A CN201910740607A CN110365367A CN 110365367 A CN110365367 A CN 110365367A CN 201910740607 A CN201910740607 A CN 201910740607A CN 110365367 A CN110365367 A CN 110365367A
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/14—Routing performance; Theoretical aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/70—Routing based on monitoring results
Abstract
The invention discloses a kind of network-building method of electric line carrier communication, device, equipment and computer readable storage mediums, the logical topological structure including establishing power line carrier communication system；The neighbors collection at two moment of each node separation preset time period is determined in logical topological structure；According to the two of each node neighbors collection and the corresponding relationship of neighbors collection and change rate, the change rate of each node is determined；According to the change rate of node each in path to be measured and the corresponding relationship of change rate and routing metric, the routing metric in path to be measured is determined, to carry out networking.In the present invention, it is capable of determining that the change rate of each node in power line carrier communication system and the routing metric in path to be measured is obtained according to it, since routing metric can characterize the stability in path to be measured, therefore the path to be measured that staff can choose high stability carries out networking, improves the stability of networking.
Description
Technical field
The present invention relates to field of power systems, more particularly to a kind of network-building method of electric line carrier communication, the present invention
Further relate to network device, equipment and the medium of a kind of electric line carrier communication.
Background technique
With the rapid development of voltage power-line carrier communication technology, to wanting for the stability of power line carrier communication transmission
Continuous raising is asked, however in the prior art when carrying out the networking of electric line carrier communication, meeting one communication line of any selection,
To complete networking, however the stability of each node is different in power line carrier communication system, may interrupt at any time, therefore existing
Have in technology after completing networking, the stability for the communication line that networking obtains is unknown, it is likely that interrupt at any time, stability
It is poor.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that those skilled in the art need to solve at present
Problem.
Summary of the invention
The object of the present invention is to provide a kind of network-building methods of electric line carrier communication, improve the stability of networking；This
The another object of invention is to provide network device, equipment and the medium of a kind of electric line carrier communication, improves the stabilization of networking
Property.
In order to solve the above technical problems, the present invention provides a kind of network-building methods of electric line carrier communication, comprising:
Establish the logical topological structure of power line carrier communication system；
The neighbors collection at two moment of each node separation preset time period is determined in the logical topological structure；
According to the two of each node neighbors collection and the corresponding relationship of the neighbors collection and change rate, determine
The change rate of each node out；
According to the change rate of node each in path to be measured and the corresponding relationship of the change rate and routing metric,
The routing metric in the path to be measured is determined, to carry out networking.
Preferably, the logical topological structure are as follows:
G (t)={ V, E (t) }；
V=1,2 ... y }；
E (t)={ e1, e2... en}；
Wherein, V indicates the node set that predeterminable area is distributed in the logical topological structure, and G (t) is digraph, E (t)
For the link set of t moment.
Preferably, the corresponding relationship of the neighbors collection and change rate specifically:
Wherein, NCRi is the change rate of node i,It is node i in t0The neighbors collection at moment,Exist for node i
t1The neighbors collection at moment.
Preferably, the corresponding relationship of the change rate and routing metric specifically:
Wherein, NCRpathFor the routing metric in the path to be measured.
In order to solve the above technical problems, the present invention also provides a kind of network devices of electric line carrier communication, comprising:
Module is established, for establishing the logical topological structure of power line carrier communication system；
First determining module, for determining the two of each node separation preset time period in the logical topological structure
The neighbors collection at a moment；
Second determining module, for according to two neighbors collection of each node and the neighbors collection and variation
The corresponding relationship of rate determines the change rate of each node；
Third determining module, for being selected according to the change rate of node each in path to be measured and the change rate and routing
The corresponding relationship for selecting measurement determines the routing metric in the path to be measured, to carry out networking.
Preferably, the logical topological structure are as follows:
G (t)={ V, E (t) }；
V={ 1,2 ... y }；
E (t)={ e1, e2... en}；
Wherein, V indicates the node set that predeterminable area is distributed in the logical topological structure, and G (t) is digraph, E (t)
For the link set of t moment.
Preferably, the corresponding relationship of the neighbors collection and change rate specifically:
Wherein, NCRiFor the change rate of node i,It is node i in t0The neighbors collection at moment,Exist for node i
t1The neighbors collection at moment.
Preferably, the corresponding relationship of the change rate and routing metric specifically:
Wherein, NCRpathFor the routing metric in the path to be measured.
In order to solve the above technical problems, the present invention also provides a kind of networking equipments of electric line carrier communication, comprising:
Memory, for storing computer program；
Processor realizes the networking of the as above any one electric line carrier communication when for executing the computer program
The step of method.
In order to solve the above technical problems, the computer can the present invention also provides a kind of computer readable storage medium
It reads to be stored with computer program on storage medium, the as above any one electricity is realized when the computer program is executed by processor
The step of network-building method of line of force carrier communication.
The present invention provides a kind of network-building methods of electric line carrier communication, including establishing power line carrier communication system
Logical topological structure；The neighbors at two moment of each node separation preset time period is determined in logical topological structure
Collection；According to the two of each node neighbors collection and the corresponding relationship of neighbors collection and change rate, each node is determined
Change rate；According to the change rate of node each in path to be measured and the corresponding relationship of change rate and routing metric, determine
The routing metric in path to be measured out, to carry out networking.
As it can be seen that in the present invention, it is capable of determining that in power line carrier communication system the change rate of each node and according to it
The routing metric in path to be measured is obtained, since routing metric can characterize the stability in path to be measured, work
The path to be measured that personnel can choose high stability carries out networking, improves the stability of networking.
The present invention also provides a kind of network device of electric line carrier communication, equipment and computer readable storage medium,
With the identical beneficial effect of network-building method as above.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of flow diagram of the network-building method of electric line carrier communication provided by the invention；
Fig. 2 is a kind of process of the method for building up of the logical topological structure of power line carrier communication system provided by the invention
Schematic diagram；
Fig. 3 is a kind of structural schematic diagram of the network device of electric line carrier communication provided by the invention；
Fig. 4 is a kind of structural schematic diagram of the networking equipment of electric line carrier communication provided by the invention.
Specific embodiment
The object of the present invention is to provide a kind of network-building methods of electric line carrier communication, improve the stability of networking；This
The another object of invention is to provide network device, equipment and the medium of a kind of electric line carrier communication, improves the stabilization of networking
Property.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is a kind of flow diagram of the network-building method of electric line carrier communication provided by the invention,
Include:
Step S1: the logical topological structure of power line carrier communication system is established；
Specifically, initially setting up the logical topological structure of power line carrier communication system, place can be provided for subsequent step
Reason basis, convenient for the progress of subsequent step.
Step S2: the neighbors at two moment of each node separation preset time period is determined in logical topological structure
Collection；
Specifically, in power line carrier communication system, including large number of communication node, if node i can be received
Hear the signal that node j is sended over, then node i, there are directed edges to be denoted as e (i, j) between j, and node j is the neighbour of node i
Node, for two-way link, node i, j neighbors each other, the neighbors collection of all neighbours' configuration node j of node i.
Specifically, preset time period can independently be set according to actual needs, for example, 10 minutes etc., the present invention was real
Apply example it is not limited here.
Wherein it is determined that a specific example of the neighbors collection at two moment of each node separation preset time period can be with
To determine that its 10:00 is whole and the neighbors collection at two moment of 10:10, as defining node j for node j
10 minutes two moment of interval neighbors collection, as node j is in the whole neighbors collection of 10 AM and 10 points respectively
Very neighbors collection.
Step S3: it according to the two of each node neighbors collection and the corresponding relationship of neighbors collection and change rate, determines
The change rate of each node out；
Specifically, neighbors collection is in the state of dynamic change, the adjacent section of a node for the same node
The variation of point set it is more, then illustrate the node local topology variation it is more violent, conversely, the change of the neighbors collection of a node
Change is fewer, then illustrates that the local topology of the node is more stable, the probability which interrupts is smaller.
Wherein, the corresponding relationship of neighbors collection and change rate can independently be set, and the embodiment of the present invention is not done herein
It limits.
Step S4: it is closed according to the change rate of node each in path to be measured and change rate are corresponding with routing metric
System, determines the routing metric in path to be measured, to carry out networking.
Specifically, after the change rate for determining each node, since path to be measured is made of multiple nodes, then root again
According to the change rate of each node in path to be measured and the corresponding relationship of change rate and routing metric, it is just capable of determining that this
The routing metric in path to be measured, correspondingly, just can by the routing metric for comparing a plurality of different path to be measured
It determines that the smallest paths of outage probability carry out constructing communication network, improves the stability and reliability of networking.
Wherein, after this patent sets up " logical topological structure " shortly, the path based on neighbor node change rate has also been devised
Stability prediction model.Selection stabilizing path carry out data forwarding be ensure power line carrier stablize networking effective ways it
One, it selects stabilizing path the energy loss of node can be effectively reduced to avoid some unnecessary Reroute operations, ensures
The reliability of networking.
Wherein, the change rate of each node in path to be measured, the embodiment of the present invention can also be only determined in step s3
It is not limited here.
Specifically, the corresponding relationship of change rate and routing metric can independently be set according to self-demand, this
Inventive embodiments are it is not limited here.
The present invention provides a kind of network-building methods of electric line carrier communication, including establishing power line carrier communication system
Logical topological structure；The neighbors at two moment of each node separation preset time period is determined in logical topological structure
Collection；According to the two of each node neighbors collection and the corresponding relationship of neighbors collection and change rate, each node is determined
Change rate；According to the change rate of node each in path to be measured and the corresponding relationship of change rate and routing metric, determine
The routing metric in path to be measured out, to carry out networking.
As it can be seen that in the present invention, it is capable of determining that in power line carrier communication system the change rate of each node and according to it
The routing metric in path to be measured is obtained, since routing metric can characterize the stability in path to be measured, work
The path to be measured that personnel can choose high stability carries out networking, improves the stability of networking.
On the basis of the above embodiments:
Embodiment as one preferred, logical topological structure are as follows:
G (t)={ V, E (t) }；
V={ 1,2 ... y }；
E (t)={ e1, e2... en}；
Wherein, V indicates the node set of predeterminable area distribution in logical topological structure, and G (t) is digraph, when E (t) is t
The link set at quarter.
Specifically, each branch has different Topology connections different there is many branches in low-voltage power line network
Number of users.User density is different, symmetrically or non-symmetrically is distributed in secondary network or in each branch, the length of branch
Also not identical.Up to the present, have many people to study the various dynamic group net algorithms based on relaying.Various methods
It can realize the automatic relay of routing, there is certain adaptive ability, but have certain limitation simultaneously.Class ant colony is calculated
Method has the advantages of distributed computing, paired running, but exists simultaneously the problem of blindly controlling without hesitation, waste of resource, networking time
It can increase as node quantity increases, also there is certain requirement to bandwidth.Clustering Routing can be dynamic according to channel quality
The communication connection in low-voltage powerline carrier communication network between each node is set up to state, and gives route maintenance, optimization
Specific method, there is stronger self-healing ability, but the reliability and capability to resist destruction of this organization algorithm are limited, may be because
Frequent routing reconfigurability is carried out for the severe of communication environment, very big communication delay, while its group can be come to communication band in this way
The channel time series control protocol comparison of net is complicated, increases error probability, reduces the speed of networking.
Wherein, these algorithms are unfolded to further investigate to power line carrier communication networking interior joint stability at present.For this purpose,
The invention discloses a kind of low voltage power line carrier network-building methods of logic-based topology control, by analyzing traditional sub-clustering
Routing algorithm for the purpose of increasing the reliability of network and reduce network energy consumption, proposes one kind and more accords on this basis
Close power transmission the dynamic clustering routing algorithm based on business otherness, with improve whole network reliability and in real time
Property.
Specifically, referring to FIG. 2, Fig. 2 is a kind of logical topology knot of power line carrier communication system provided by the invention
The flow diagram of the method for building up of structure, detailed process is as follows:
Assuming that a low pressure carrier wave network is a from Carrier Node X by 1 main carrier node A and miComposition, it is known that only
" logical topological structure " of network is then established in each Carrier Node address as follows.
Step 1: node A successively send out test bag poll it is all from Carrier Node Xi, Xi receive after reply response bag to node
A, can find out the n slave Carrier Nodes that can directly communicate with node A in this way, this n node is classified as first layer from Carrier Node.
Two kinds of situations are discussed:
(1) if n=m, show that all subcarrier nodes all can be communicated directly with main carrier node, without relaying, can stop
Polling procedure；
(2) if n < m, 2 are entered step.
Step 2: successively initiating poll from Carrier Node 1 to node n by first layer, inquire that remaining (m-n) is a from carrier wave
Node, it is assumed that node 1 is inquired to be responded to p1 from Carrier Node, then this p1 are the child node of node 1 from Carrier Node, is belonged to
The second layer is from Carrier Node.It is inquired by this wheel, number of the second layer from Carrier Node are as follows:
Two kinds of special circumstances are discussed:
(1) ifShow that first layer can not be communicated from Carrier Node with remaining (m-n) a node foundation, remains
Lower node is all " acnode ", and logical topological structure figure can be established, can stop polling procedure；
(2) ifShow that remaining node belongs to the second layer from Carrier Node, all nodes have been looked for
Together, logical topological structure figure can be established, can stop polling procedure.
Step 3: successively the starting second layer is remaining from Carrier Node number from Carrier Node again are as follows:
It is polled to remaining from Carrier Node, the node being polled to is included into third layer from Carrier Node.
Process according to this, the final result of poll have 2 kinds of situations:
(1) all father nodes that oneself can be found from Carrier Node, n all in this way nodes establish one it is tree-like
Logical topological structure figure, relay point of each layer of the father node as oneself child node in figure, all data all can be by each
Main carrier node is sent on grade relaying；
(2) finally it is left several child nodes that any one node is not belonging to from Carrier Node, these points are formed " lonely
Point ", but other node has constituted a tree-like logical topological structure figure, and each layer of father node is as oneself sub- section in figure
The relay point of point, all data all can be by being sent to main carrier node on relayings at different levels, " acnode " is excluded in entire topology
Except structure.
Specifically, above-mentioned steps are to find out the process of electric line carrier communication " logical topological structure ", on this basis,
The application devises the path stability prediction model based on neighbor node change rate.
Specifically, since to be mainly used in the real-times such as carrier meter reading, Street lamps control not high for low-voltage powerline carrier communication
Occasion, but often network is complicated for these applications, is difficult to find out " network topology structure " physically, the research of this patent
Focus on the dynamic optimization of low voltage power line carrier networking, the network-building method proposed by the present invention based on " logical topological structure "
The thinking of searching " physical topological structure " networking has been abandoned, this method can be reliably achieved the communication of all Carrier Nodes,
Time-consuming can be received by current low-voltage carrier communication.
Certainly, it other than the detailed process of the above-mentioned logical topological structure for establishing power line carrier communication system, establishes
The detailed process of the logical topological structure of power line carrier communication system can also be other forms, and the embodiment of the present invention is herein not
It limits.
Specifically, indicate that the logical topological structure of electric line carrier communication is fairly simple accurate using digraph form, when
So, the logical topological structure of electric line carrier communication can also be indicated using other forms, the embodiment of the present invention is not done herein
It limits.
Embodiment as one preferred, the corresponding relationship of neighbors collection and change rate specifically:
Wherein, NCRi is the change rate of node i,It is node i in t0The neighbors collection at moment,It is node i in t1When
The neighbors collection at quarter.
Specifically, NCRi reflects the on-off variation of Radio Link relevant to node i, NCRi is bigger, shows node i office
Portion's topology is more stable, and NCRi is smaller, shows that the variation of node i local topology is more violent.In node i, mobile and surroundings nodes are static,
Or in the case that node i is static and the fierce movement of surroundings nodes, NCRi value will be smaller, therefore, the variation of path local topology
Bigger node, the probability that path is interrupted will be bigger, and the size of NCRi reflects the stability in path, so routing
Selection local topology as far as possible is changed into small node in selection and participates in data forwarding.
Certainly, other than the corresponding relationship of above-mentioned neighbors collection and change rate, neighbors collection is corresponding with change rate to be closed
System can also be other forms, and the embodiment of the present invention is it is not limited here.
The corresponding relationship of embodiment as one preferred, change rate and routing metric specifically:
Wherein, NCRpathFor the routing metric in path to be measured.
Specifically, the change rate of node each in path to be measured is added in the embodiment of the present invention obtain the path to be measured
Routing metric then shows that the path to be measured is more stable, in generation likewise, the routing metric in path to be measured is smaller
Disconnected probability is smaller, and the corresponding relationship provided in the embodiment of the present invention can rapidly calculate the Route Selection degree in path to be measured
Amount.
Certainly, other than the concrete form in the embodiment of the present invention, the corresponding relationship of change rate and routing metric is also
It can be other forms, the embodiment of the present invention is it is not limited here.
Referring to FIG. 3, Fig. 3 is a kind of structural schematic diagram of the network device of electric line carrier communication provided by the invention,
Include:
Module 1 is established, for establishing the logical topological structure of power line carrier communication system；
First determining module 2, for determining two of each node separation preset time period in logical topological structure
The neighbors collection at moment；
Second determining module 3, for according to two neighbors collection of each node and pair of neighbors collection and change rate
It should be related to, determine the change rate of each node；
Third determining module 4, for the change rate and change rate and Route Selection according to node each in path to be measured
The corresponding relationship of measurement determines the routing metric in path to be measured, to carry out networking.
Embodiment as one preferred, logical topological structure are as follows:
G (t)={ V, E (t) }；
V={ 1,2 ... y }；
E (t)={ e1, e2... en}；
Wherein, V indicates the node set of predeterminable area distribution in logical topological structure, and G (t) is digraph, when E (t) is t
The link set at quarter.
Embodiment as one preferred, the corresponding relationship of neighbors collection and change rate specifically:
Wherein, NCRiFor the change rate of node i,It is node i in t0The neighbors collection at moment,It is node i in t1When
The neighbors collection at quarter.
The corresponding relationship of embodiment as one preferred, change rate and routing metric specifically:
Wherein, NCRpathFor the routing metric in path to be measured.
Aforementioned networking side is please referred to for the introduction of the network device of electric line carrier communication provided in an embodiment of the present invention
The embodiment of method, details are not described herein for the embodiment of the present invention.
Referring to FIG. 4, Fig. 4 is a kind of structural schematic diagram of the networking equipment of electric line carrier communication provided by the invention,
Include:
Memory 5, for storing computer program；
Processor 6 realizes the network-building method of electric line carrier communication any one of as above when for executing computer program
Step.
Aforementioned networking side is please referred to for the introduction of the networking equipment of electric line carrier communication provided in an embodiment of the present invention
The embodiment of method, details are not described herein for the embodiment of the present invention.
In order to solve the above technical problems, the present invention also provides a kind of computer readable storage medium, it is computer-readable to deposit
It is stored with computer program on storage media, as above any one electric line carrier communication is realized when computer program is executed by processor
Network-building method the step of.
The reality of aforementioned network-building method is please referred to for the introduction of computer readable storage medium provided in an embodiment of the present invention
Example is applied, details are not described herein for the embodiment of the present invention.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or equipment for including the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of network-building method of electric line carrier communication characterized by comprising
Establish the logical topological structure of power line carrier communication system；
The neighbors collection at two moment of each node separation preset time period is determined in the logical topological structure；
According to the two of each node neighbors collection and the corresponding relationship of the neighbors collection and change rate, determine each
The change rate of a node；
According to the change rate of node each in path to be measured and the corresponding relationship of the change rate and routing metric, determine
The routing metric in the path to be measured out, to carry out networking.
2. network-building method according to claim 1, which is characterized in that the logical topological structure are as follows:
G (t)={ V, E (t) }；
V=1,2 ... y }；
E (t)={ e1, e2... en}；
Wherein, V indicates the node set that predeterminable area is distributed in the logical topological structure, and G (t) is digraph, when E (t) is t
The link set at quarter.
3. network-building method according to claim 2, which is characterized in that the corresponding relationship of the neighbors collection and change rate tool
Body are as follows:
Wherein, NCRiFor the change rate of node i,It is node i in t0The neighbors collection at moment,It is node i in t1When
The neighbors collection carved.
4. network-building method according to claim 3, which is characterized in that the change rate is corresponding with routing metric to close
System specifically:
Wherein, NCRpathFor the routing metric in the path to be measured.
5. a kind of network device of electric line carrier communication characterized by comprising
Module is established, for establishing the logical topological structure of power line carrier communication system；
First determining module, when for determining two of each node separation preset time period in the logical topological structure
The neighbors collection at quarter；
Second determining module, for according to two neighbors collection of each node and the neighbors collection and change rate
Corresponding relationship determines the change rate of each node；
Third determining module, for according to the change rate of node each in path to be measured and the change rate and Route Selection degree
The corresponding relationship of amount determines the routing metric in the path to be measured, to carry out networking.
6. network device according to claim 5, which is characterized in that the logical topological structure are as follows:
G (t)={ V, E (t) }；
V=1,2 ... y }；
E (t)={ e1, e2... en}；
Wherein, V indicates the node set that predeterminable area is distributed in the logical topological structure, and G (t) is digraph, when E (t) is t
The link set at quarter.
7. network device according to claim 6, which is characterized in that the corresponding relationship of the neighbors collection and change rate tool
Body are as follows:
Wherein, NCRiFor the change rate of node i,It is node i in t0The neighbors collection at moment,It is node i in t1Moment
The neighbors collection.
8. network device according to claim 7, which is characterized in that the change rate is corresponding with routing metric to close
System specifically:
Wherein, NCRpathFor the routing metric in the path to be measured.
9. a kind of networking equipment of electric line carrier communication characterized by comprising
Memory, for storing computer program；
Processor realizes the electric line carrier communication as described in any one of Claims 1-4 when for executing the computer program
Network-building method the step of.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program, realizing the electric line carrier communication as described in any one of Claims 1-4 when the computer program is executed by processor
The step of network-building method.
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