CN108632975A - A kind of method that dynamic power consumption is reduced in power line carrier communication - Google Patents
A kind of method that dynamic power consumption is reduced in power line carrier communication Download PDFInfo
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- CN108632975A CN108632975A CN201810308137.1A CN201810308137A CN108632975A CN 108632975 A CN108632975 A CN 108632975A CN 201810308137 A CN201810308137 A CN 201810308137A CN 108632975 A CN108632975 A CN 108632975A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
-
- 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
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/362—Aspects of the step size
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/365—Power headroom reporting
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to power-line carrier communication field, the method that dynamic power consumption is reduced in specially a kind of power line carrier communication includes the following steps：Forwarding step, node is according to predetermined power to Correspondent Node transmission data；Receive step, node generates evaluation quantity according to the return information of Correspondent Node；Set-up procedure is calculated, node adjusts transmission power according to the evaluation quantity of generation；It includes signal-to-noise ratio set-up procedure and error rate set-up procedure to calculate set-up procedure；Signal-to-noise ratio set-up procedure includes：S101：Node obtains transmission signal-to-noise ratio and using signal-to-noise ratio as evaluation quantity；S102：Node generates objective emission power according to signal-to-noise ratio；S103：Node is according to objective emission power adjustment current power.The method that dynamic power consumption is reduced in power line carrier communication provided by the invention, can solve the problems, such as that dynamic power consumption is big in existing power line carrier communication.
Description
Technical field
The present invention relates to power-line carrier communication field, in particular to being dropped in a kind of power line carrier communication
The method of low dynamic power consumption.
Background technology
Power line carrier communication (power line carrier communication) is using transmission line of electricity as carrier signal
Transmission medium communication of power system.Since transmission line of electricity has a very firm support construction, and sets up 3 or more and lead
Body (generally has three-phase good conductor and one or two aerial earth wire), thus power transmission line convey power current while, with transmission
Carrier signal, it is not only economical but also very reliable.This comprehensive utilization early has become the spy that all power departments preferentially use in the world
There is means of communication.
It is more and more extensive with the application of power-line carrier communication, need the number of nodes communicated also more and more,
Also more and more frequently, the gross energy that carrier communication is consumed is also more and more, and people are for reducing electricity for data communication between node
The power consumption of powerline carrier communication also becomes increasingly to pay attention to.
The power consumption of dynamic power consumption is bigger than quiescent dissipation during power line carrier communication, in the unit interval obtains
It is more, thus it is the key that reduce total power consumption to reduce dynamic power consumption, during existing power line carrier communication, either unicast is logical
Letter or broadcast communication all use fixed transmission power, this mode that can increase many unnecessary power consumptions.
Invention content
The invention is intended to provide a kind of method for reducing dynamic power consumption in power line carrier communication, existing electric power can be solved
The big problem of dynamic power consumption in line carrier communication.
In order to solve the above-mentioned technical problem, this patent provides the following technical solutions：
A kind of method that dynamic power consumption is reduced in power line carrier communication, including the following contents：
Forwarding step, node is according to predetermined power to Correspondent Node transmission data；
Receive step, node generates evaluation quantity according to the return information of Correspondent Node；
Set-up procedure is calculated, node adjusts transmission power according to the evaluation quantity of generation.
For the closer node of two distances, it is not necessarily to excessively high transmission power at all, is returned by receiving Correspondent Node
Information generates evaluation quantity and dynamically adjusts the transmission power of own node according to evaluation quantity, realizes energy-saving effect.
Further, the calculating set-up procedure includes error rate set-up procedure, and the error rate set-up procedure includes：
S201：The error rate that node is sent according to return information statistical information, using error rate as evaluation quantity；
S202：Judge whether current erroneous rate is more than max-thresholds, if so, increasing transmission power, and re-executes
S202, if it is not, then executing S203；
S203：Judge whether current erroneous rate is less than minimum threshold, if so, reducing transmission power, and re-executes
S202, if it is not, then terminating error rate set-up procedure.
Further, the calculating set-up procedure includes signal-to-noise ratio set-up procedure, and the signal-to-noise ratio set-up procedure includes：
S101：Node obtains transmission signal-to-noise ratio and using signal-to-noise ratio as evaluation quantity；
S102：Node generates objective emission power according to signal-to-noise ratio；
S103：Node is according to objective emission power adjustment current power.
In technical solution of the present invention, by Correspondent Node return information, obtain corresponding data and extract signal-to-noise ratio with
And error rate is as evaluation quantity, it, can be with there are one the domain of SNR inside the SACK of unicast packet according to the transport protocol of national grid
The value for storing signal-to-noise ratio is used for sending node, and therefore, when having signal-to-noise ratio in the data that communication returns, i.e., power line carrier is logical
When letter follows state's fidonetFido, by signal-to-noise ratio, transmission power is controlled, receiving node is enable just to receive the packet of node transmission,
Have the function that reduce power consumption；When the return value that data are sent does not have signal-to-noise ratio data, i.e. the electric power for non-state's fidonetFido
Line carrier communication, by obtaining the error rate for the packet that information is sent, i.e. PER (Packet Error Rate), to calculate transmitting work(
Rate is needed to improve or be reduced, then will be by carrying when the error rate for the packet that data are sent is more than max-thresholds as defined in institute's energy
High transmitting power, to improve transmission quality, to ensure the correct transmission of data；When the error rate of packet is less than minimum threshold, table
Bright present data transmission is in good condition, and can attempt, which reduces transmission power, carrys out power saving, finally so that error rate in max-thresholds and
Between minimum threshold, reach and meet transmission requirement, and saves the purpose of power consumption.With present by the way of fixed transmission power
It compares, the dynamic adjustment of power during power line carrier communication may be implemented in technical scheme of the present invention, realizes to reduce and move
State power consumption.
Further, S102 specifically includes following steps：
S102-1：Node calculates power headroom according to current transmission power；
S102-2：Node calculates objective emission power according to following formula：Pt-(Pm-Sd), wherein Pt are present node
Transmission power, Pm are the power headroom of present node, and Sd is the signal-to-noise ratio obtained.
Power headroom is controlled according to the data of signal-to-noise ratio, and then make transmission power just to overcome noise and reach transmission
It is required that realizing energy saving.
Further, it calculates in set-up procedure and signal-to-noise ratio set-up procedure is first carried out, it is rear to execute error rate set-up procedure.
Signal-to-noise ratio set-up procedure is first carried out and carries out preliminary adjusting to transmission power, is then adjusted and is walked by error rate again
Suddenly fine tuning is carried out to power, reaches more reasonably power bracket, first passing through signal-to-noise ratio set-up procedure can make transmission power quick
Reach near suitable power, and then reduces number power up-regulation in error rate set-up procedure or lowered.
Further, the signal-to-noise ratio obtained in S101 is the average value for the signal-to-noise ratio that multiple data transmission obtains.
Data can be made more accurate using the average value of multiple signal-to-noise ratio, and then keep the adjustment of power more reasonable.
Further, it in the S202 and S203, is all made of the mode of fixed step size and emits to increase transmission power and reduce
Power, and the step-length for increasing transmission power is more than the step-length for reducing transmission power.Increased step-length is more than the step-length reduced can be with
So that power is rapidly achieved the degree for meeting communication, ensure the unimpeded of data communication, reduces the small and increased compensation of step-length setting
Finer power can be adjusted.
Description of the drawings
Fig. 1 is that flow is illustrated in the embodiment of the method one for reduced in a kind of power line carrier communication of the present invention dynamic power consumption
Figure；
Fig. 2 is that flow is illustrated in the embodiment of the method two for reduced in a kind of power line carrier communication of the present invention dynamic power consumption
Figure；
Fig. 3 is that flow is illustrated in the embodiment of the method three for reduced in a kind of power line carrier communication of the present invention dynamic power consumption
Figure.
Specific implementation mode
Below by specific implementation mode, the present invention is described in further detail：
Embodiment one
As shown in Figure 1, the method for reducing dynamic power consumption in a kind of power line carrier communication of the present embodiment includes the following steps：
Forwarding step, node is according to predetermined power to Correspondent Node transmission data；
Receive step, node generates evaluation quantity according to the return information of Correspondent Node；
Set-up procedure is calculated, node adjusts transmission power according to the evaluation quantity of generation；
Wherein, it includes signal-to-noise ratio set-up procedure to calculate set-up procedure, and signal-to-noise ratio set-up procedure specifically includes：
S101：Node obtains transmission signal-to-noise ratio and using signal-to-noise ratio as evaluation quantity；
S102：Node generates objective emission power according to signal-to-noise ratio；
S103：Node is according to objective emission power adjustment current power；
S102 specifically includes following steps：
S102-1：Node calculates power headroom according to current transmission power；
S102-2：Node calculates objective emission power according to following formula：Pt-(Pm-Sd), wherein Pt are present node
Transmission power, Pm are the power headroom of present node, and Sd is the signal-to-noise ratio obtained.
The signal-to-noise ratio obtained in S101 is the average value for the signal-to-noise ratio that multiple data transmission obtains.
Embodiment two
As shown in Fig. 2, the difference between this embodiment and the first embodiment lies in, it includes error rate adjustment step to calculate set-up procedure
Suddenly, error rate set-up procedure includes：
S201：The error rate that node is sent according to return information statistical information, using error rate as evaluation quantity；
S202：Judge whether current erroneous rate is more than max-thresholds, if so, increasing transmission power, and re-executes
S202, if it is not, then executing S203；
S203：Judge whether current erroneous rate is less than minimum threshold, if so, reducing transmission power, and re-executes
S202, if it is not, then terminating error rate set-up procedure.
For example, currently transmitted power is Pt, it is Per, max-thresholds PerHigh that SACK, which returns to the error rate currently wrapped,
Minimum threshold is PerLow.Then if Per>PerHigh, then Pt is improved, if Per<PerLow, it tries reduce Pt, such as
Fruit PerLow<=Per<=PerHigh, then it is assumed that this Pt is suitable, can be continuing with this transmission power.
In order to reach to transmission power control more accurately purpose, also the two steps are combined in the present embodiment
Get up, i.e., for including signal-to-noise ratio data in returned data the case where, signal-to-noise ratio set-up procedure is first carried out to transmission power
Preliminary adjusting is carried out, fine tuning is then carried out to power by error rate set-up procedure again, reaches more reasonably power bracket, first
Transmission power can be made to be rapidly achieved near suitable power by signal-to-noise ratio set-up procedure, and then reduce error rate set-up procedure
Middle number power up-regulation or lowered.
In S202 and S203, the mode of fixed step size is all made of to increase transmission power and reduce transmission power, and increase
The step-length of transmission power is more than the step-length for reducing transmission power.Increased step-length, which is more than the step-length reduced, so that power is quickly reached
To the degree for meeting communication, ensure the unimpeded of data communication, reducing the smaller of step-length setting finer can carry out power
It adjusts, in the present embodiment, increased step-length is set as 1/10th of node maximum transmission power, and the step-length of reduction is set as increasing
/ 5th of big step-length.
Embodiment three
As shown in figure 3, difference lies in calculating set-up procedure both included for the present embodiment and embodiment one and embodiment two
Signal-to-noise ratio set-up procedure includes again error rate set-up procedure, and signal-to-noise ratio set-up procedure is before error rate set-up procedure.
The above are merely the embodiment of the present invention, the common sense such as well known concrete structure and characteristic are not made excessively herein in scheme
Description, all common of technical field that the present invention belongs to before one skilled in the art know the applying date or priority date
Technological know-how can know the prior art all in the field, and with using routine experiment means before the date
Ability, one skilled in the art can improve in conjunction with self-ability under the enlightenment that the application provides and implement we
Case, some typical known features or known method should not become the barrier that one skilled in the art implement the application
Hinder.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, if can also make
Dry modification and improvement, these should also be considered as protection scope of the present invention, these all do not interfere with the effect that the present invention is implemented and
Patent practicability.The scope of protection required by this application should be based on the content of the claims, the specific reality in specification
Apply the content that the records such as mode can be used for explaining claim.
Claims (7)
1. a kind of method for reducing dynamic power consumption in power line carrier communication, it is characterised in that：Including the following contents：
Forwarding step, node is according to predetermined power to Correspondent Node transmission data；
Receive step, node generates evaluation quantity according to the return information of Correspondent Node；
Set-up procedure is calculated, node adjusts transmission power according to the evaluation quantity of generation.
2. the method for reducing dynamic power consumption in a kind of power line carrier communication according to claim 1, it is characterised in that：Institute
It includes error rate set-up procedure to state and calculate set-up procedure, and the error rate set-up procedure includes：
S201：The error rate that node is sent according to return information statistical information, using error rate as evaluation quantity；
S202：Judge whether current erroneous rate is more than max-thresholds, if so, increasing transmission power, and re-executes S202, if
It is no, then execute S203；
S203：Judge whether current erroneous rate is less than minimum threshold, if so, reducing transmission power, and re-executes S202, if
It is no, then terminate error rate set-up procedure.
3. the method for reducing dynamic power consumption in a kind of power line carrier communication according to claim 1 or 2, feature exist
In：The calculating set-up procedure includes signal-to-noise ratio set-up procedure, and the signal-to-noise ratio set-up procedure includes：
The signal-to-noise ratio set-up procedure includes：
S101：Node obtains transmission signal-to-noise ratio and using signal-to-noise ratio as evaluation quantity；
S102：Node generates objective emission power according to signal-to-noise ratio；
S103：Node is according to objective emission power adjustment current power.
4. the method for reducing dynamic power consumption in a kind of power line carrier communication according to claim 3, it is characterised in that：
S102 specifically includes following steps：
S102-1：Node calculates power headroom according to current transmission power；
S102-2：Node calculates objective emission power according to following formula：Pt-(Pm-Sd), wherein Pt are the transmitting of present node
Power, Pm are the power headroom of present node, and Sd is the signal-to-noise ratio obtained.
5. the method for reducing dynamic power consumption in a kind of power line carrier communication according to claim 3, it is characterised in that：Meter
It calculates in set-up procedure and signal-to-noise ratio set-up procedure is first carried out, it is rear to execute error rate set-up procedure.
6. the method for reducing dynamic power consumption in a kind of power line carrier communication according to claim 3, it is characterised in that：
The signal-to-noise ratio obtained in S101 is the average value for the signal-to-noise ratio that multiple data transmission obtains.
7. the method for reducing dynamic power consumption in a kind of power line carrier communication according to claim 2, it is characterised in that：Institute
It states in S202 and S203, is all made of the mode of fixed step size to increase transmission power and reduce transmission power, and increase transmitting work(
The step-length of rate is more than the step-length for reducing transmission power.
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| CN201810308137.1A CN108632975A (en) | 2018-04-08 | 2018-04-08 | A kind of method that dynamic power consumption is reduced in power line carrier communication |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110889961A (en) * | 2019-10-30 | 2020-03-17 | 江苏芯云电子科技有限公司 | System and method for reducing PLC power consumption and interference |
| CN112769456A (en) * | 2020-12-31 | 2021-05-07 | 广东电网有限责任公司电力调度控制中心 | Networking method and device for power line communication |
| CN113489512A (en) * | 2021-04-30 | 2021-10-08 | 佛山市顺德区美的电子科技有限公司 | Power line communication control method, device and storage medium |
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| CN105451323A (en) * | 2015-12-01 | 2016-03-30 | 中国联合网络通信集团有限公司 | Home gateway transmission efficiency adjustment method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110889961A (en) * | 2019-10-30 | 2020-03-17 | 江苏芯云电子科技有限公司 | System and method for reducing PLC power consumption and interference |
| CN112769456A (en) * | 2020-12-31 | 2021-05-07 | 广东电网有限责任公司电力调度控制中心 | Networking method and device for power line communication |
| CN112769456B (en) * | 2020-12-31 | 2023-02-17 | 广东电网有限责任公司电力调度控制中心 | Networking method and device for power line communication |
| CN113489512A (en) * | 2021-04-30 | 2021-10-08 | 佛山市顺德区美的电子科技有限公司 | Power line communication control method, device and storage medium |
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Application publication date: 20181009 |