CN104601199B - Method and device for optimizing performance of G3-PLC carrier communication network - Google Patents
Method and device for optimizing performance of G3-PLC carrier communication network Download PDFInfo
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Abstract
The invention provides a method for optimizing the performance of a G3-PLC carrier communication network, which comprises the steps of determining the current working frequency band of each carrier device on the G3-PLC carrier communication network; the working frequency bands comprise an A frequency band, an FCC frequency band and an ARIB frequency band; the method comprises the steps of dividing a current working frequency band according to a preset division rule to obtain a plurality of sub-frequency bands, distributing a plurality of corresponding sub-carrier channels for each sub-frequency band, and loading the plurality of sub-carrier channels distributed in each sub-frequency band on corresponding carrier equipment respectively, so that the carrier equipment in the same sub-frequency band can be communicated with each other. By implementing the embodiment of the invention, the problem of performance reduction of the carrier communication network caused by carrier collision when large-scale networking is carried out based on G3-PLC can be solved.
Description
Technical field
The present invention relates to powerline network technical field, more particularly to a kind of optimization G3-PLC carrier communication network performances
Method and apparatus.
Background technology
G3-PLC is the global power line communication open protocol for aiming at intelligent grid communication and designing, and belongs to arrowband power line
Carrier communication (Narrow-Band Power Line Communications, abbreviation NB-PLC) standard, is generally used for copying automatically
The low-speed data communication occasions such as table (AMR), energy control and power network monitoring.
G3-PLC working frequency range has three kinds：A frequency ranges (35~91KHz), FCC frequency ranges (10~490KHz) and ARIB frequency ranges
(10~450KHz).For any of above-mentioned three kinds of working frequency range, G3-PLC physical layers use OFDM (Orthogonal
Frequency Division Multiplexing, i.e. orthogonal frequency division multiplexi) method bandwidth of the frequency range according to regulation
Limited sub- carrier channel is divided into, such as frequency range of A frequency ranges is 35~91KHz, is according to each subcarrier width
1.5625KHz is divided, and producing 36 subcarriers, i.e. A frequency ranges has 36 sub- carrier channels so that carrier equipment can be according to line
Decay, interference and noise situations automatic dynamic selection communication efficiency preferably those subcarrier passages on road are communicated.
Power line can use carrier sense collision detection as shared media applied to the G3-PLC on middle voltage distribution networks
Method can evade same circuit and upload wave device while the collision problem that data trigger is sent, and between carrier equipment
Communication response delay is small, and shortcoming is：Once carrier equipment increasing number, forms the online wave carrier conflict of G3-PLC carrier communications and adds
Play, communication delay increased dramatically between causing carrier equipment, so as to not reach the communicating requirement of distribution.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is to optimize G3-PLC carrier communication network performances there is provided one kind
Method and apparatus, when can solve the problem that based on G3-PLC large-scale network-estabilishings, carrier communication network performance is caused because of wave carrier conflict
The problem of decline.
In order to solve the above-mentioned technical problem, G3-PLC carrier communication network performances are optimized the embodiments of the invention provide one kind
Method, methods described includes：
Determine the work at present frequency range of the online each carrier equipment of G3-PLC carrier communications；Wherein, the working frequency range includes A
Frequency range, FCC frequency ranges and ARIB frequency ranges；
The work at present frequency range of the determination is divided according to default division rule, multiple frequency sub-band are obtained, and
Several corresponding subcarrier passages are distributed respectively for obtained each frequency sub-band, and will be distributed in each frequency sub-band
Several subcarrier passages load on respectively on corresponding carrier equipment, can be achieved same frequency sub-band in carrier equipment carry out
It is in communication with each other；
Wherein, it is described that the work at present frequency range of the determination is divided according to default division rule, obtain multiple
Frequency sub-band, and several corresponding subcarrier passages are distributed respectively for obtained each frequency sub-band, and by each son
Several subcarrier passages of distribution are loaded on corresponding carrier equipment respectively in frequency range, and the load in same frequency sub-band can be achieved
The specific steps that wave device is in communication with each other include：
According to the work at present frequency range of the determination, the corresponding subcarrier width of the work at present frequency range is obtained, enters one
Step obtains the corresponding frequency of each subcarrier passage in the work at present frequency range；
According to frequency putting in order from small to large, the frequency to obtained each subcarrier passage is distributed accordingly respectively
Channel number parameter；
According to default division rule, the number of contained subcarrier passage in the quantity and each frequency sub-band of frequency sub-band is determined
Amount, and give corresponding frequency sub-band by the obtained subcarrier channel number parametric distribution；
Subcarrier channel number parameter and its corresponding frequency range in each frequency sub-band is loaded on into corresponding carrier wave to set
It is standby upper, and corresponding effectively mark is respectively equipped with to the carrier equipment in each frequency sub-band, set when in same frequency sub-band intercarrier
It is standby when effectively mark is identical, realize that the carrier equipment in same frequency sub-band is in communication with each other.
Wherein, methods described further comprises：
Effective mark that carrier equipment in different frequency range is provided with is differed.
Wherein, the subcarrier channel number parameter and its corresponding frequency range by each frequency sub-band is loaded on accordingly
Carrier equipment carrier chip on.
Wherein, the subcarrier channel number parameter and its corresponding frequency range by each frequency sub-band is loaded on accordingly
Carrier equipment be, in carrier chip power-up initializing, to be configured by CPU and the carrier chip interface.
The embodiment of the present invention additionally provides a kind of device of optimization G3-PLC carrier communication network performances, described device bag
Include：
Working frequency range determining unit, the work at present frequency range for determining the online each carrier equipment of G3-PLC carrier communications；
Wherein, the working frequency range includes A frequency ranges, FCC frequency ranges and ARIB frequency ranges；
Working frequency range division unit, for being drawn according to default division rule to the work at present frequency range of the determination
Point, multiple frequency sub-band are obtained, and several corresponding subcarrier passages are distributed respectively for obtained each frequency sub-band, and will
Several subcarrier passages of distribution are loaded on corresponding carrier equipment respectively in each frequency sub-band, and same son can be achieved
Carrier equipment in frequency range is in communication with each other；
Wherein, the working frequency range division unit includes：
Subcarrier passage acquisition module, for the work at present frequency range according to the determination, obtains the work at present frequency
The corresponding subcarrier width of section, further obtains the corresponding frequency of each subcarrier passage in the work at present frequency range；
Channel number parametric distribution module, for the putting in order from small to large according to frequency, to obtained each sub- load
The frequency of ripple passage distributes corresponding channel number parameter respectively；
Frequency sub-band is divided and distribute module, for according to default division rule, determining the quantity and each son of frequency sub-band
The quantity of contained subcarrier passage in frequency range, and give corresponding frequency sub-band by the obtained subcarrier channel number parametric distribution；
Optimization and communication module, for by the subcarrier channel number parameter and its corresponding frequency range in each frequency sub-band
Load on corresponding carrier equipment, and corresponding effectively mark be respectively equipped with to the carrier equipment in each frequency sub-band, when in
Same frequency sub-band contains when effectively mark is identical of wave device, realizes that the carrier equipment in same frequency sub-band is in communication with each other.
Wherein, the subcarrier channel number parameter and its corresponding frequency range by each frequency sub-band is loaded on accordingly
Carrier equipment carrier chip on.
Wherein, the subcarrier channel number parameter and its corresponding frequency range by each frequency sub-band is loaded on accordingly
Carrier equipment be, in carrier chip power-up initializing, to be configured by CPU and the carrier chip interface.
Implement the embodiment of the present invention, have the advantages that：
In embodiments of the present invention, by by work at present frequency range (A frequency ranges, FCC frequency ranges and the ARIB frequency ranges on G3-PLC
Any of which) divided, at least two frequency sub-band are produced, each frequency sub-band leads to comprising several different subcarriers
Road, due to being provided with different effective marks on the carrier equipment that is worked in different frequency sub-band, so that wave carrier conflict will not be caused,
So that each carrier equipment can only be belonging to it frequency sub-band in transceiving data on contained subcarrier passage, therefore reduce
The probability of same frequency sub-band intercarrier conflict, improves the performance of carrier communication network, extensive so as to solve G3-PLC
During networking, the problem of carrier communication network hydraulic performance decline is caused because of wave carrier conflict.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to
These accompanying drawings obtain other accompanying drawings and still fall within scope of the invention.
Fig. 1 is the flow chart of the method for optimization G3-PLC carrier communication network performances provided in an embodiment of the present invention；
Fig. 2 is the structural representation of the device of optimization G3-PLC carrier communication network performances provided in an embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.
As shown in figure 1, be a kind of optimization G3-PLC carrier communication network performance methodologies provided in an embodiment of the present invention, it is described
Method includes：
Step S101, the work at present frequency range for determining the online each carrier equipment of G3-PLC carrier communications；Wherein, the work
Frequency range includes A frequency ranges, FCC frequency ranges and ARIB frequency ranges；
Detailed process is that the online working frequency range of G3-PLC carrier communications is all that advance planning and designing are good, work frequency
Section is A frequency ranges, FCC frequency ranges, any of which of ARIB frequency ranges；Wherein, the frequency range of A frequency ranges is 35KHz~91KHz, FCC frequencies
The frequency range of section is 10KHz~490KHz, and the frequency range of ARIB frequency ranges is 10KHz~450KHz.
Step S102, according to default division rule the work at present frequency range of the determination is divided, obtain multiple
Frequency sub-band, and several corresponding subcarrier passages are distributed respectively for obtained each frequency sub-band, and by each son
Several subcarrier passages of distribution are loaded on corresponding carrier equipment respectively in frequency range, and the load in same frequency sub-band can be achieved
Wave device is in communication with each other.
Detailed process is first, according to work at present frequency range, to obtain the corresponding subcarrier width of work at present frequency range, enter
One step obtains the corresponding frequency of each subcarrier passage in work at present frequency range；It should be noted that the width of each subcarrier is
Refer to the frequency bandwidth shared by single sub-carrier passage, be what is be fixedly installed in embodiments of the present invention, son is carried because obtained from
Ripple passage is also relatively-stationary；
Secondly, according to frequency putting in order from small to large, the frequency to each subcarrier passage is distributed corresponding logical respectively
Taoist monastic name parameter；As an example, work at present frequency range is 35.938KHz~67.188KHz in A frequency ranges, each
The width of subcarrier is 1.5625KHz, and it is 1 to 20 to map out subcarrier channel number parameter, wherein, channel number parameter is 1
Sub-carrier frequency range is minimum, and channel number parameter is maximum for 20 sub-carrier frequency range；
Then, according to default division rule, contained subcarrier passage in the quantity and each frequency sub-band of frequency sub-band is determined
Quantity, and by subcarrier channel number parametric distribution give corresponding frequency sub-band；As an example, in view of work at present frequency range has
1 to 20 sub- carrier channel number, work at present frequency range being marked off, identical number is included in two frequency sub-band, each frequency sub-band
Subcarrier channel parameters are given first son by the subcarrier passage (or different subcarrier passages) of amount for preceding 10 (or 8)
Frequency range, subcarrier channel parameters give second frequency sub-band for rear 10 (or 12)；
Finally, the subcarrier channel number parameter and its corresponding frequency range in each frequency sub-band are loaded on into corresponding load
On wave device, and corresponding effectively mark is respectively equipped with to the carrier equipment in each frequency sub-band, is contained when in same frequency sub-band
When effectively mark is identical of wave device, realizes that the carrier equipment in same frequency sub-band is in communication with each other.
Specifically, according to the subcarrier channel number parameter distributed in each frequency sub-band, it may be determined that the frequency of each frequency sub-band
Rate scope, is in communication with each other to realize that same frequency sub-band contains wave device, it is therefore desirable to by the frequency range of frequency sub-band and
Subcarrier channel number parameter setting is on corresponding carrier equipment, being loaded directly into, on the carrier chip of carrier equipment, may be used again
In carrier chip power-up initializing, it is configured by the interface of CPU and carrier chip；
Because the corresponding subcarrier passage frequency domain position of each subcarrier channel number is fixed, flexibly configurable is each
Whether effective manner is to determine frequency sub-band for individual sub- carrier channel number, be configured so that can realize it is discrete rather than continuous multiple
The combination of frequency sub-band, so as to when containing when effectively mark is identical of wave device in same frequency sub-band, realize in same frequency sub-band
Carrier equipment be in communication with each other.
It should be noted that carrier equipment in same frequency sub-band can decline according to each subcarrier passage in the frequency sub-band
Subtract, disturb and the selection of noise situations automatic dynamic, obtain the preferable subcarrier passage of communication efficiency and communicated.
, could will be different it is understood that effective mark that the carrier equipment in different frequency range is provided with is differed
Frequency sub-band is distinguish between, and is communicated so that the carrier equipment in each frequency sub-band forms each relatively independent small network.
In embodiments of the present invention, the carrier chip handling process of carrier equipment is：1st, transmitting terminal, data message is by adding
Disturb, encode, interweaving, modulating the processing such as mapping, generating data symbol, be input to IFFT (Inverse Fast Fourier
Transformation, inversefouriertransform) module, corresponding time-domain signal is obtained, is added before the time-domain signal before circulation
After sewing, it is sent to through digital-to-analogue conversion in channel；2nd, receiving terminal passes through corresponding inverse processing, the signal received can be changed
Into data message, it is achieved thereby that communication effect of the carrier equipment in the subcarrier passage that the frequency sub-band scope of setting is mapped
Communication on fruit preferably circuit.
As an example, working frequency is divided for 35KHz~91KHz of A frequency ranges, 36 subcarriers are generated,
And two frequency sub-band are now sequentially divided into according to division rule from small to large by the channel number parameter assignment of 36 subcarriers,
So that each frequency sub-band includes 18 subcarriers, 1 to 18 is included in the range of previous frequency sub-band (35KHz, 63KHz)
Subcarrier channel number parameter, latter frequency sub-band [63KHz, 91KHz) in include 19 to 36 subcarrier channel number parameter；
The frequency range (35KHz, 63KHz) of previous frequency sub-band and 1 to 18 subcarrier channel number parameter assignment are given
Corresponding carrier equipment, by the frequency range of latter frequency sub-band [63KHz, 91KHz) and including 19 to 36 subcarrier passage
Number parameter assignment gives other corresponding carrier equipments, is known by being provided with criterion on each carrier equipment in previous frequency sub-band
1, criterion is provided with each carrier equipment of latter frequency sub-band and knows 0, so that each carrier wave distinguished in the two frequency sub-band is set
Communication between standby.The two certain frequency sub-band can also set identical effectively to identify 1, will not cause in two frequency sub-band
Communication between each carrier equipment is interfered with each other.
As shown in Fig. 2 being a kind of device of optimization G3-PLC carrier communication network performances provided in an embodiment of the present invention, institute
Stating device includes：
Working frequency range determining unit 110, the work at present frequency for determining the online each carrier equipment of G3-PLC carrier communications
Section；Wherein, the working frequency range includes A frequency ranges, FCC frequency ranges and ARIB frequency ranges；
Working frequency range division unit 120, for being entered according to default division rule to the work at present frequency range of the determination
Row is divided, and obtains multiple frequency sub-band, and distributes several corresponding subcarrier passages respectively for obtained each frequency sub-band,
And load on several subcarrier passages distributed in each frequency sub-band on corresponding carrier equipment respectively, it can be achieved same
Carrier equipment in one frequency sub-band is in communication with each other.
Wherein, working frequency range division unit 120 includes：
Subcarrier passage acquisition module 1201, for the work at present frequency range according to the determination, obtains the current work
Make the corresponding subcarrier width of frequency range, further obtain the corresponding frequency of each subcarrier passage in the work at present frequency range；
Channel number parametric distribution module 1202, for the putting in order from small to large according to frequency, to it is described obtain it is each
The frequency of subcarrier passage distributes corresponding channel number parameter respectively；
Frequency sub-band is divided and distribute module 1203, for according to default division rule, determining the quantity of frequency sub-band and every
The quantity of contained subcarrier passage in one frequency sub-band, and by the obtained subcarrier channel number parametric distribution to corresponding son frequency
Section；
Optimization and communication module 1204, for by the subcarrier channel number parameter and its corresponding frequency in each frequency sub-band
Scope is loaded on corresponding carrier equipment, and is respectively equipped with corresponding effectively mark to the carrier equipment in each frequency sub-band, when
When effectively mark is identical of wave device is contained in same frequency sub-band, realizes that the carrier equipment in same frequency sub-band carries out phase intercommunication
Letter.
Wherein, the subcarrier channel number parameter and its corresponding frequency range in each frequency sub-band are loaded on into corresponding load
On the carrier chip of wave device.
Wherein, the subcarrier channel number parameter and its corresponding frequency range in each frequency sub-band are loaded on into corresponding load
Wave device is, in carrier chip power-up initializing, to be configured by CPU and the carrier chip interface.
Implement the embodiment of the present invention, have the advantages that：
In embodiments of the present invention, by by work at present frequency range (A frequency ranges, FCC frequency ranges and the ARIB frequency ranges on G3-PLC
Any of which) divided, at least two frequency sub-band are produced, each frequency sub-band leads to comprising several different subcarriers
Road, due to being provided with different effective marks on the carrier equipment that is worked in different frequency sub-band, so that wave carrier conflict will not be caused,
So that each carrier equipment can only be belonging to it frequency sub-band in transceiving data on contained subcarrier passage, therefore reduce
The probability of same frequency sub-band intercarrier conflict, improves the performance of carrier communication network, extensive so as to solve G3-PLC
During networking, the problem of carrier communication network hydraulic performance decline is caused because of wave carrier conflict.
It is worth noting that, in said apparatus embodiment, each included device unit simply enters according to function logic
What row was divided, but above-mentioned division is not limited to, as long as corresponding function can be realized；In addition, each functional unit
Specific name is also only to facilitate mutually distinguish, the protection domain being not intended to limit the invention.
Can be with one of ordinary skill in the art will appreciate that realizing that all or part of step in above-described embodiment method is
The hardware of correlation is instructed to complete by program, described program can be stored in a computer read/write memory medium,
Described storage medium, such as ROM/RAM, disk, CD.
Above disclosed is only a kind of preferred embodiment of the invention, can not limit the power of the present invention with this certainly
Sharp scope, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (7)
1. a kind of method of optimization G3-PLC carrier communication network performances, it is characterised in that methods described includes：
Determine the work at present frequency range of the online each carrier equipment of G3-PLC carrier communications；Wherein, the working frequency range includes A frequencies
Section, FCC frequency ranges and ARIB frequency ranges；
The work at present frequency range of the determination is divided according to default division rule, multiple frequency sub-band are obtained, and be institute
State obtained each frequency sub-band and distribute several corresponding subcarrier passages respectively, and if will be distributed in each frequency sub-band
A dry sub- carrier channel is loaded on corresponding carrier equipment respectively, and the carrier equipment that can be achieved in same frequency sub-band is carried out mutually
Communication；
Wherein, it is described that the work at present frequency range of the determination is divided according to default division rule, obtain many height frequencies
Section, and several corresponding subcarrier passages are distributed respectively for obtained each frequency sub-band, and by each frequency sub-band
Several subcarrier passages of interior distribution are loaded on corresponding carrier equipment respectively, and the carrier wave that can be achieved in same frequency sub-band is set
The standby specific steps being in communication with each other include：
According to the work at present frequency range of the determination, the corresponding subcarrier width of the work at present frequency range is obtained, further
The corresponding frequency of each subcarrier passage in the work at present frequency range；
According to frequency putting in order from small to large, the frequency to obtained each subcarrier passage is distributed corresponding logical respectively
Taoist monastic name parameter；
According to default division rule, the quantity of contained subcarrier passage in the quantity and each frequency sub-band of frequency sub-band is determined, and
Corresponding frequency sub-band is given by the obtained subcarrier channel number parametric distribution；
Subcarrier channel number parameter and its corresponding frequency range in each frequency sub-band is loaded on corresponding carrier equipment,
And corresponding effectively mark is respectively equipped with to the carrier equipment in each frequency sub-band, when containing having for wave device in same frequency sub-band
Criterion is sensible simultaneously, realizes that the carrier equipment in same frequency sub-band is in communication with each other.
2. the method as described in claim 1, it is characterised in that methods described further comprises：
Effective mark that carrier equipment in different frequency range is provided with is differed.
3. the method as described in claim 1, it is characterised in that the subcarrier channel number parameter by each frequency sub-band and
Its corresponding frequency range is loaded on the carrier chip of corresponding carrier equipment.
4. the method as described in claim 1, it is characterised in that the subcarrier channel number parameter by each frequency sub-band and
It is, in carrier chip power-up initializing, to be carried by CPU with described that its corresponding frequency range, which loads on corresponding carrier equipment,
The interface of ripple chip is configured.
5. a kind of device of optimization G3-PLC carrier communication network performances, it is characterised in that described device includes：
Working frequency range determining unit, the work at present frequency range for determining the online each carrier equipment of G3-PLC carrier communications；Wherein,
The working frequency range includes A frequency ranges, FCC frequency ranges and ARIB frequency ranges；
Working frequency range division unit, for being divided according to default division rule to the work at present frequency range of the determination,
Obtain multiple frequency sub-band, and several corresponding subcarrier passages are distributed respectively for obtained each frequency sub-band, and by institute
Several subcarrier passages for stating distribution in each frequency sub-band are loaded on corresponding carrier equipment respectively, and same son frequency can be achieved
Carrier equipment in section is in communication with each other；
Wherein, the working frequency range division unit includes：
Subcarrier passage acquisition module, for the work at present frequency range according to the determination, obtains the work at present frequency range pair
The subcarrier width answered, further obtains the corresponding frequency of each subcarrier passage in the work at present frequency range；
Channel number parametric distribution module, it is logical to obtained each subcarrier for the putting in order from small to large according to frequency
The frequency in road distributes corresponding channel number parameter respectively；
Frequency sub-band is divided and distribute module, for according to default division rule, determining the quantity and each frequency sub-band of frequency sub-band
The quantity of interior contained subcarrier passage, and give corresponding frequency sub-band by the obtained subcarrier channel number parametric distribution；
Optimization and communication module, for the subcarrier channel number parameter in each frequency sub-band and its corresponding frequency range to be loaded
Corresponding effectively mark is respectively equipped with corresponding carrier equipment, and to the carrier equipment in each frequency sub-band, when in same
Frequency sub-band contains when effectively mark is identical of wave device, realizes that the carrier equipment in same frequency sub-band is in communication with each other.
6. device as claimed in claim 5, it is characterised in that the subcarrier channel number parameter by each frequency sub-band and
Its corresponding frequency range is loaded on the carrier chip of corresponding carrier equipment.
7. device as claimed in claim 5, it is characterised in that the subcarrier channel number parameter by each frequency sub-band and
It is, in carrier chip power-up initializing, to be carried by CPU with described that its corresponding frequency range, which loads on corresponding carrier equipment,
The interface of ripple chip is configured.
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| CN109104218B (en) * | 2018-09-30 | 2021-05-11 | 宁波三星智能电气有限公司 | Power line carrier communication channel optimization method for electric energy meter |
| CN112583511B (en) * | 2020-12-06 | 2024-03-29 | 广州技象科技有限公司 | Networking method, device, equipment and storage medium based on same time slot transmission |
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| CN103701576B (en) * | 2013-06-26 | 2016-09-21 | 国家电网公司 | A kind of power line communication frequency band allocation and device |
| CN103457900B (en) * | 2013-09-03 | 2016-09-21 | 清华大学 | Many frequency networking methods based on OFDM and device in electric line communication system |
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