CN109660958A - A kind of network-building method and meter register method of power meter reading system - Google Patents
A kind of network-building method and meter register method of power meter reading system Download PDFInfo
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- CN109660958A CN109660958A CN201811629216.9A CN201811629216A CN109660958A CN 109660958 A CN109660958 A CN 109660958A CN 201811629216 A CN201811629216 A CN 201811629216A CN 109660958 A CN109660958 A CN 109660958A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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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
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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Abstract
A kind of network-building method and meter register method of power meter reading system, the power meter reading system includes that concentrator, electric energy meter, collector sum aggregate copy main website, the concentrator is host node, the electric energy meter and collector are from node, the host node includes bimodulus host node and carrier only host node, it is described from node include bimodulus from node and carrier only from node；Host node and after powering on from node, power line carrier network networking is first carried out, then carries out bottom-up wireless networking in conjunction with power line carrier network topology information, group network process is simple, network stabilization is reliable, is conducive to improve meter reading success rate and communication efficiency.
Description
Technical field
The invention belongs to technical field of electric power communication, are espespecially related to a kind of wireless with power line carrier communication and micropower
The network-building method and meter register method of the kilowatt meter reading-out system of the node of communication pattern.
Background technique
Power meter reading system is mainly made of electric energy meter, collector, concentrator, data transmission channel, main station system.It concentrates
The local data transfer of device mainly has power line carrier communication and micro power radio communication two ways.Power line carrier communication
(Power Line Carrier, abbreviation PLC) is the distinctive communication mode of electric system, passes through carrier system using power line
Analog or digital signal is carried out to the technology of high-speed transfer.Power line carrier communication maximum feature is not need to set up net again
Network can be carried out data transmission as long as live wire, but power line carrier communication is easy by impedance, noise, air switch and breaks
Road device decaying etc. influences.Micro power radio communication is to transmit data in the propagation in space by electromagnetic wave, not by electric power wire loop
Border influences, have the characteristics that small power consumption, can across platform area, but micro power radio communication is under large-scale shelter and closed environment,
Transmission success rate is lower, while communication quality is easy to be influenced by weather.Power line carrier communication and micro power radio communication respectively have
Its disadvantage, but can mutually make up to a certain extent is based on this, occurs some combining two kinds of communication modes in recent years
Technology, to improve meter reading success rate and communication efficiency.
Disclosing a kind of acquire towards power information application No. is 201810229174.3 Chinese invention patent application is
The bimodulus heterogeneous network group-net communication method of system, this method by building towards for power wirelessly and power line carrier double tree nets
Network is assessed the communication performance of power line carrier communication and micropower wireless channel, and postorder traversal routing forwarding by device node
It sets to realize channel selection and routing addressing, ensures concentrator with higher success rate by archives update mechanism and retransmission mechanism
Realize electric power data acquisition.But the power line carrier communication and micro power radio communication of method are independence networkings, need concentrator
Node and electric energy meter node are provided simultaneously with power line carrier communication and micro power radio communication function, and need concentrator node
It sends networking beacon frame and carries out networking, efficiency is lower.Application No. is 201510500266.7 Chinese invention patent applications to disclose
A kind of dual mode communication intelligent electric energy meter and centralized automatic meter-reading network-building method, the electric energy meter in kilowatt meter reading-out system includes that there are two types of communications for tool
The communication module of mode, when the communication module of the first communication mode can not effectively receive the communication from centralized meter-reading system network
When data frame, then by MCU control module to two-way module realization conversion and forwarding mutually, selection is apart from most according to the actual situation
Excellent, the most stable of routed path of signal, to improve the stability of the networking efficiency of electric energy meter and communication path in platform area.But the party
Method is to send copy reading communication instruction by concentrator to carry out networking, and there is also the lower problems of efficiency.
Summary of the invention
A kind of network-building method of the purpose of the present invention is to provide network-building methods simple, high-efficient power meter reading system.
Another object of the present invention is to provide a kind of meter register methods of power meter reading system that communication efficiency is high.
In order to realize that above-mentioned first purpose, the present invention take following technical solution:
A kind of network-building method of power meter reading system, the power meter reading system include concentrator, electric energy meter, collector and
Ji Chao main website, the concentrator are host node, and the electric energy meter and collector are from node, and the host node includes the main section of bimodulus
Point and carrier only host node, described from node includes bimodulus from node and carrier only from node, and the step of network-building method is as follows:
Power line carrier network networking step, the host node and after powering on from node carry out power line carrier network group
Net:
The channel that S1-1, host node use when determining wireless networking according to own node address, passes through electric power for channel number
Line carrier network is broadcasted, and the channel number information broadcasted by the host node that power line listens to neighbours' platform area, if main
The channel number that node is broadcasted conflicts with the channel number that the host node in neighbours' platform area is broadcasted, the host node clashed to really
Fixed channel number is held consultation adjustment；
S1-2, it networks, and is obtained from power line carrier network topological structure from node by power line carrier
Level；
S1-3, host node successfully send channel number used in wireless networking from node to networking by power line；
Wireless network networking step, the slave node with dual mode communication module finish laggard in power line carrier network networking
The networking of row wireless network:
S2-1, bimodulus execute subsequent step according to whether itself has successfully been networked by power line carrier network from node
Suddenly, if bimodulus has been networked successfully by power line carrier from node, and the wireless networking channel number of host node transmission is received,
S2-2 is thened follow the steps, if the bimodulus fails successfully to network by power line carrier from node, thens follow the steps S2-3；
S2-2, bimodulus the broadcast radio networking application on the wireless channel that host node distributes from node, if there is neighbours save
Point receives wireless networkings application, neighbor node will oneself in power line carrier network topological structure locating level, itself
Wireless field density and own node address information reply to the sending wirelessly network application bimodulus from node, bimodulus is from nodes records
Received information establishes neighbours' bimodulus from node listing, and compares itself and neighbor node in power line carrier network topology knot
Level in structure is less than neighbor node of the bimodulus from node level if there is level, then selects the smallest neighbours' section of level
Point networks as wireless relay nodes, then executes step S2-4, otherwise selects the strongest neighbor node of wireless field density as nothing
Line relay node networks, and then executes step S2-4；
S2-3, bimodulus switch wireless networking channel from node repeating query, send the wireless application that networks by wireless channel and carry out
It sounds out, applies if there is neighbor node receives the wireless networking, neighbor node will be from power line carrier network topology knot
In structure locating level, itself wireless field density and own node address information reply to the sending wirelessly network application bimodulus from section
Point, bimodulus establish neighbours' bimodulus from node listing from the received information of nodes records, and compare itself and neighbor node in electric power
Level in line carrier network topological structure is less than the bimodulus from the neighbor node of node level if there is level, then selects
The smallest node of level networks as wireless relay nodes, then executes step S2-4, otherwise selects the strongest neighbour of wireless field density
It occupies node to network as wireless relay nodes, then executes step S2-4；
S2-4: judging that the neighbor node as wireless relay nodes is bimodulus host node or bimodulus from node, if it is
Bimodulus thens follow the steps S2-5 from node, then executes S2-6 if it is bimodulus host node；
S2-5: wireless relay nodes apply for the wireless networking received to be sent to main section by power line carrier network
Point, host node will network after receiving the wireless networking application and successfully confirm or deny sending by power line carrier network
To wireless relay nodes, then it will be networked by wireless relay nodes by wireless channel and successfully confirm or deny being sent to initiation wirelessly
The bimodulus applied network from node, if allowing to network, it is corresponding with wireless relay nodes from node that host node records the bimodulus
Then relationship executes step S2-7, then follow the steps S2-8 if not allowing to network；
S2-6, wireless relay nodes, which directly pass through wireless channel and will network successfully to confirm or deny being sent to, initiates networking Shen
Bimodulus please, if allowing to network, thens follow the steps S2-7 from node, thens follow the steps S2-8 if not allowing to network；
S2-7, wireless relay nodes timing pass through wireless channel and shake hands to the bimodulus for initiating networking application from node transmission
Frame, bimodulus carry out response after receiving handshake frames from node, if wireless relay nodes do not receive within a certain period of time continuously it is double
Mould is from the response of shaking hands of node, then wireless relay nodes send off-line application of the bimodulus from node to host node, and host node will
Unresponsive bimodulus is deleted from node and the corresponding relationship of its wireless relay nodes；If continuously within a certain period of time, bimodulus from
Node does not receive the handshake frames of wireless relay nodes, thens follow the steps S2-8；
S2-8, bimodulus select power line carrier network topological layer from node from its neighbours' bimodulus recorded from node listing
The minimum neighbours' bimodulus of grade sends the wireless application that networks from node again as wireless relay nodes, returns to step S2-5,
If neighbours' bimodulus is used as from neighbours' bimodulus in node listing from node, wireless relay nodes are wireless but networking is unsuccessful,
Return to step S2-3.
More specifically, in step S1-1, host node according to the total wireless channel group quantity of lowest byte mould of Self address come
The channel used when determining wireless networking.
More specifically, in step 1-1, when the wireless communication Taoist monastic name conflict of host node broadcast, two main sections clashing
Point is held consultation by comparing the size of address, by carrying out channel again after the lesser host node adjustment channel number of host node address
Number broadcast, the channel number of the biggish host node of host node address remains unchanged.
In order to realize that above-mentioned second purpose, the present invention take following technical solution:
The power meter reading system that networking is carried out using the network-building method of aforementioned power meter reading system, is carried out using following steps
Meter reading:
Ji Chao main website sends meter reading order to host node；
It is to be networked simultaneously by power line carrier network and wireless network or only that the slave node of copy reading is wanted in host node inquiry
It is networked by wireless network, if it is the former, meter reading order should be passed through electricity from node address address as a purpose by host node
Line of force carrier network is sent to this from node, should be returned from node by meter reading result by power line carrier network；If it is rear
Person, host node inquire the wireless relay nodes from node, and by wireless relay nodes address, address passes through power line as a purpose
Meter reading order is sent wireless relay nodes by carrier network, and meter reading order is transmitted to this from node by wireless relay nodes,
From node by meter reading result backtracking.
From the above technical scheme, when the method for the present invention carries out networking, networking is first carried out using power line carrier network,
Bottom-up wireless networking is carried out in conjunction with power line carrier network topology information, and when wireless networking, bimodulus is from node
The lesser neighbor node of power line carrier network topology level is preferentially selected to initiate the application that networks, networking as wireless relay nodes
Beacon frame is sent without wireless host node in the process, network-building method is simple, improves networking efficiency；It is established based on the network-building method
Meter reading network meter reading when, meter reading process is simple and reliable, and meter reading success rate and communication efficiency can be improved.
Detailed description of the invention
It in order to illustrate the embodiments of the present invention more clearly, below will be to required use in embodiment or description of the prior art
Attached drawing do simple introduction, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the block diagram of power meter reading system of the embodiment of the present invention；
Fig. 2 is the flow chart of network-building method of the present invention.
Specific embodiment
In order to above and other objects of the present invention, feature and advantage can be become apparent from, the embodiment of the present invention is cited below particularly,
And cooperate appended diagram, it is described below in detail.
As shown in Figure 1, the power meter reading system of the present embodiment includes: that concentrator, electric energy meter, collector sum aggregate copy main website
(not shown).Wherein, concentrator is host node, and electric energy meter and collector are from node.Concentrator can be with dual mode communication
The concentrator (hereinafter referred to as bimodulus host node) of module, may be implemented power line carrier communication and micro power radio communication.It concentrates
Device is also possible to the concentrator (hereinafter referred to as carrier only host node) with Power Line Carrier Communication Module, can only carry out power line
Carrier communication.Likewise, electric energy meter that electric energy meter is also possible to have dual mode communication module (hereinafter referred to as bimodulus from node), or
Person is the electric energy meter (hereinafter referred to as carrier only from node) with Power Line Carrier Communication Module.Electricity with dual mode communication module
Energy table can communicate to connect by way of power line carrier or wirelessly with concentrator, have Power Line Carrier Communication Module
Electric energy meter communicated to connect by power line and concentrator.Collector includes that I type collector and II type collector, collector are used for
Connect the electric energy meter without communication function, collector is that have the collector of dual mode communication module (hereinafter referred to as bimodulus is from section
Point), it can be communicated to connect by power line or wirelessly with concentrator.
Below with reference to Fig. 2, network-building method of the invention is illustrated, network-building method of the invention includes power line carrier
Network organizing and the big step of wireless networking two, first progress power line carrier network networking, then carry out wireless networking, specifically again
It is as follows:
S1, power line carrier network networking step；It host node (concentrator) and is powered on from node (electric energy meter, collector)
Afterwards, start to carry out power line carrier network networking, specific steps are as follows:
S1-1, host node (concentrator with dual mode communication module and the concentrator with Power Line Carrier Communication Module)
Then the channel used when determining wireless networking according to own node address is carried out channel number by power line carrier network wide
It broadcasts, the channel number information that host node is broadcasted while broadcast by the host node that power line listens to neighbours' platform area, when main section
When the broadcasted channel number of point conflicts with the channel number that the host node in neighbours' platform area is broadcasted, the host node that clashes to it is true
Fixed channel number is held consultation adjustment；Specifically, host node is according to the total wireless channel group number of lowest byte mould of Self address
The channel for measuring to use when determining wireless networking；When channel number conflict, two host nodes clashed are by comparing address
Size hold consultation, by again carrying out the broadcast of channel number, main section after the lesser host node adjustment channel number of host node address
The channel number of the biggish host node of dot address remains unchanged；
S1-2, from node (electric energy meter, collector with dual mode communication module and with Power Line Carrier Communication Module
Electric energy meter) it is networked by power line carrier, and the level being obtained from power line carrier network topological structure；
S1-3, host node successfully send channel number used in wireless networking from node to networking by power line.
S2, wireless network networking step；Wireless network networking step mainly for the slave node with dual mode communication module,
Bimodulus after delay time T, starts the networking for carrying out wireless network from node, and delay time T is power line carrier network networking
Time, the duration of delay time T determines according to from the total quantity of node, i.e., after the completion of power line carrier network networking again into
The networking of row wireless network, specific steps are as follows:
Whether S2-1, bimodulus after waiting delay time T, pass through power line carrier network success according to itself from node
It networks to execute different subsequent steps, if the bimodulus has been networked successfully by power line carrier from node, and receives master
Node send wireless networking channel number, then follow the steps S2-2, if the bimodulus from node fail by power line carrier at
Function networks, and thens follow the steps S2-3；
S2-2, bimodulus the broadcast radio networking application on the wireless channel that host node distributes from node, if there is neighbours save
Point receives wireless networkings application, neighbor node will oneself in power line carrier network topological structure locating level, itself
Wireless field density and own node address information reply to the sending wirelessly network application bimodulus from node, neighbor node can be
Bimodulus host node, and/or network successful bimodulus from node by power line carrier, the bimodulus is from node according to receiving
Information, compares the level of itself and neighbor node in power line carrier network topological structure, is less than this pair if there is level
Mould is from the neighbor node of node level, then selecting the smallest node of level, (node can be bimodulus from node or the main section of bimodulus
Point) it networks as wireless relay nodes, step S2-4 is then executed, if the level of neighbor node is equal to or is greater than the bimodulus
From the level of node, then the strongest neighbor node of wireless field density is selected to network as wireless relay nodes, at this point, by wireless channel
As spare communication channel, step S2-4 is then executed；If neighbours' bimodulus is not networked successfully by power line carrier from node,
Then to the networking application received without processing；Bimodulus is receiving network layer of neighbours' bimodulus from node reverts back from node
After grade, wireless field density and node address information, received all neighbours' bimodulus are recorded from the information of node, is established adjacent
Bimodulus is occupied from node listing；
S2-3, bimodulus switch wireless networking channel from node repeating query, send the wireless application that networks by wireless channel and carry out
It sounds out, if there is neighbor node (including bimodulus host node, and/or networked successful bimodulus from node by power line carrier)
The wireless networking application is received, neighbor node will be from locating level, itself nothing in power line carrier network topological structure
The field of line is strong and own node address information reply to the sending wirelessly network application bimodulus from node, the bimodulus from node according to
The information received compares the level of itself and neighbor node in power line carrier network topological structure, if there is level
Less than the bimodulus from the neighbor node of node level, then the smallest node of level is selected to network as wireless relay nodes, then
It executes step S2-4 and selects wireless field density if the level of neighbor node is equal to or the level greater than the bimodulus from node
Strongest neighbor node networks as wireless relay nodes, then executes step S2-4；Likewise, if neighbours' bimodulus is from node
It is not networked successfully by power line carrier, then to the networking application received without processing；Bimodulus is receiving neighbour from node
Bimodulus is occupied after the network level of node reverts back, wireless field density and node address information, to received all neighbours' bimodulus from
The information of node is recorded, and establishes neighbours' bimodulus from node listing；
S2-4: judge that the node as wireless relay nodes is bimodulus host node or bimodulus from node, if it is bimodulus
S2-5 is thened follow the steps from node, then executes S2-6 if it is bimodulus host node；
S2-5: the wireless networking received application is passed through power line carrier by wireless relay nodes (neighbours' bimodulus from node)
Network is sent to host node, and host node will network after receiving the wireless networking application and successfully confirm or deny passing through electric power
Line carrier network is sent to wireless relay nodes, then will be networked by wireless relay nodes by wireless channel and successfully confirm or deny
The bimodulus for initiating the wireless application that networks is sent to from node, step S2-7 is executed if allowing to network, if not allowing to network
Execute step S2-8；If host node allows to initiate wirelessly to network, the bimodulus of application networks from node, and host node records simultaneously should
Corresponding relationship of the bimodulus from node and wireless relay nodes；
S2-6, bimodulus host node, which directly pass through wireless channel and will network, successfully to be confirmed or denies being sent to initiation and network application
Bimodulus from node, if allowing to network, then follow the steps S2-7, if do not allow network then follow the steps S2-8；
S2-7, wireless relay nodes timing pass through wireless channel and shake hands to the bimodulus for initiating networking application from node transmission
Frame, bimodulus carry out response after receiving handshake frames from node, if wireless relay nodes do not receive within a certain period of time continuously it is double
Mould is from the response of shaking hands of node, then wireless relay nodes send off-line application of the bimodulus from node to host node, and host node will
Unresponsive bimodulus is deleted from node and the corresponding relationship of its wireless relay nodes；If continuously within a certain period of time, bimodulus from
Node does not receive the handshake frames of wireless relay nodes, thens follow the steps S2-8；
S2-8, bimodulus select power line carrier network topological layer from node from its neighbours' bimodulus recorded from node listing
The minimum neighbours' bimodulus of grade sends the wireless application that networks from node again as wireless relay nodes, returns to step S2-5,
If neighbours' bimodulus is used as from neighbours' bimodulus in node listing from node, wireless relay nodes are wireless but networking is unsuccessful,
Return to step S2-3.
When bimodulus from node with power line carrier network or wireless network success networking after, the step of meter reading, is as follows:
Ji Chao main website sends meter reading order to host node；
It is to be networked simultaneously by power line carrier network and wireless network or only that the slave node of copy reading is wanted in host node inquiry
It is networked by wireless network, if it is the former, meter reading order should be passed through electricity from node address address as a purpose by host node
Line of force carrier network is sent to this from node, should be returned from node by meter reading result by power line carrier network；If it is rear
Person, host node inquire the wireless relay nodes from node, and by wireless relay nodes address, address passes through power line as a purpose
Meter reading order is sent wireless relay nodes by carrier network, and meter reading order is transmitted to this from node by wireless relay nodes,
From node by meter reading result backtracking.
Present invention combination power line carrier network topology information carries out bottom-up wireless networking, and networking is simple,
It is reliable and stable, meter reading success rate can be improved.
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 embodiment illustrated herein, and is to fit to consistent with the principles and novel features disclosed in this article
Widest range.
Claims (4)
1. a kind of network-building method of power meter reading system, it is characterised in that: the power meter reading system includes concentrator, electric energy
Table, collector sum aggregate copy main website, and the concentrator is host node, and the electric energy meter and collector are from node, the host node
Including bimodulus host node and carrier only host node, it is described from node include bimodulus from node and carrier only from node, network-building method
The step of it is as follows:
Power line carrier network networking step, the host node and after powering on from node carry out power line carrier network networking:
The channel that S1-1, host node use when determining wireless networking according to own node address carries channel number by power line
Wave network is broadcasted, and the channel number information broadcasted by the host node that power line listens to neighbours' platform area, if host node
The channel number broadcasted conflicts with the channel number that the host node in neighbours' platform area is broadcasted, and the host node clashed is to identified
Channel number is held consultation adjustment；
S1-2, it networks from node by power line carrier, and the level being obtained from power line carrier network topological structure；
S1-3, host node successfully send channel number used in wireless networking from node to networking by power line；
Wireless network networking step, the slave node with dual mode communication module carry out nothing after power line carrier network networking
The networking of gauze network:
S2-1, bimodulus execute subsequent step according to whether itself has successfully been networked by power line carrier network from node, such as
Fruit bimodulus has been networked successfully by power line carrier from node, and receives the wireless networking channel number of host node transmission, then is held
Row step S2-2 thens follow the steps S2-3 if the bimodulus fails successfully to network by power line carrier from node；
S2-2, bimodulus the broadcast radio networking application on the wireless channel that host node distributes from node, if there is neighbor node connects
Receive wireless networking application, neighbor node will from power line carrier network topological structure locating level, itself is wireless
Field strength and own node address information reply to the sending wirelessly network application bimodulus from node, bimodulus is received from nodes records
Information, establish neighbours' bimodulus from node listing, and compare itself and neighbor node in power line carrier network topological structure
Level, be less than neighbor node of the bimodulus from node level if there is level, then the smallest neighbor node of level selected to make
For wireless relay nodes networking, then execute step S2-4, otherwise select the strongest neighbor node of wireless field density as wirelessly in
It networks after node, then executes step S2-4；
S2-3, bimodulus switch wireless networking channel from node repeating query, send the wireless application that networks by wireless channel and are soundd out,
If there is neighbor node receives the wireless networking application, neighbor node will be from the institute in power line carrier network topological structure
Place's level, itself wireless field density and own node address information reply to the sending wirelessly network application bimodulus from node, it is double
Mould establishes neighbours' bimodulus from node listing from the received information of nodes records, and compares itself and neighbor node and carry in power line
Level in wave network topological structure is less than the bimodulus from the neighbor node of node level if there is level, then selects level
The smallest node networks as wireless relay nodes, then executes step S2-4, otherwise selects the strongest neighbours' section of wireless field density
Point networks as wireless relay nodes, then executes step S2-4；
S2-4: judge that the neighbor node as wireless relay nodes is bimodulus host node or bimodulus from node, if it is bimodulus
S2-5 is thened follow the steps from node, then executes S2-6 if it is bimodulus host node；
S2-5: wireless relay nodes apply for the wireless networking received to be sent to host node by power line carrier network, main
Node will network after receiving the wireless networking application and successfully confirm or deny to be sent to by power line carrier network wirelessly
Relay node, then will be networked by wireless relay nodes by wireless channel and successfully confirm or deny being sent to the wireless networking Shen of initiation
Bimodulus please is from node, if allowing to network, host node records the bimodulus from the corresponding relationship of node and wireless relay nodes, so
Step S2-7 is executed afterwards, thens follow the steps S2-8 if not allowing to network；
S2-6, wireless relay nodes, which directly pass through wireless channel and will network successfully to confirm or deny being sent to, initiates the application that networks
Bimodulus, if allowing to network, thens follow the steps S2-7 from node, thens follow the steps S2-8 if not allowing to network；
S2-7, wireless relay nodes timing pass through wireless channel and send handshake frames from node to the bimodulus for initiating networking application, double
Mould carries out response after receiving handshake frames from node, if wireless relay nodes do not receive bimodulus continuously from section within a certain period of time
The response of shaking hands of point, then wireless relay nodes send off-line application of the bimodulus from node to host node, and host node will be unresponsive
Bimodulus deleted from the corresponding relationship of node and its wireless relay nodes；If continuously within a certain period of time, bimodulus from node not
The handshake frames for receiving wireless relay nodes, then follow the steps S2-8；
S2-8, bimodulus select power line carrier network topology level most from node from its neighbours' bimodulus recorded from node listing
Low neighbours' bimodulus sends the wireless application that networks from node again as wireless relay nodes, returns to step S2-5, if
Neighbours' bimodulus is used as wireless relay nodes wirelessly from neighbours' bimodulus in node listing from node but networking is unsuccessful, then returns
Execute step S2-3.
2. the network-building method of power meter reading system as described in claim 1, it is characterised in that: in step S1-1, host node root
The channel used when determining wireless networking according to the lowest byte mould of Self address total wireless channel group quantity.
3. the network-building method of power meter reading system as claimed in claim 1 or 2, it is characterised in that: in step 1-1, when main section
When the wireless communication Taoist monastic name conflict of point broadcast, two host nodes clashed are held consultation by comparing the size of address, by
The broadcast of channel number is carried out after the lesser host node adjustment channel number of host node address again, the biggish host node of host node address
Channel number remains unchanged.
4. carrying out the electricity meter-reading system of networking using the network-building method of the described in any item power meter reading systems of claims 1 to 3
System, it is characterised in that: carry out meter reading using following steps:
Ji Chao main website sends meter reading order to host node；
It is to be networked by power line carrier network and wireless network or only passed through simultaneously that the slave node of copy reading is wanted in host node inquiry
Wireless network networks, and if it is the former, meter reading order should be passed through power line from node address address as a purpose by host node
Carrier network is sent to this from node, should be returned from node by meter reading result by power line carrier network；It is main if it is the latter
Querying node should be from the wireless relay nodes of node, and by wireless relay nodes address, address passes through power line carrier net as a purpose
Meter reading order is sent wireless relay nodes by network, and meter reading order is transmitted to this from node, from node by wireless relay nodes
By meter reading result backtracking.
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