CN110290027A - A kind of bandwidth prediction method and system towards power distribution communication business - Google Patents
A kind of bandwidth prediction method and system towards power distribution communication business Download PDFInfo
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- CN110290027A CN110290027A CN201910635033.6A CN201910635033A CN110290027A CN 110290027 A CN110290027 A CN 110290027A CN 201910635033 A CN201910635033 A CN 201910635033A CN 110290027 A CN110290027 A CN 110290027A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H04L41/147—Network analysis or design for predicting network behaviour
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention discloses a kind of bandwidth prediction method and system towards power distribution communication business.The described method includes: obtaining the collected power distribution network running state data of multiple sensor terminal equipment for being laid in power distribution station；Power distribution network running state data includes periodic traffic data and randomness business datum；According to power distribution network running state data, application layer transport protocol overhead data and data transmission delay, the first bandwidth is calculated；According to the first bandwidth, the quantity of sensor terminal equipment and the coincidence of business, the second bandwidth is calculated；According to the second bandwidth, third bandwidth is calculated；Third bandwidth is determined as to the prediction bandwidth of power distribution communication business.This invention simplifies bandwidth calculations, solve the problems, such as radio network gateway side randomness business and periodic traffic and deposit Time Bandwidth dyscalculia.
Description
Technical field
The present invention relates to network bandwidth electric powder predictions, pre- more particularly to a kind of bandwidth towards power distribution communication business
Survey method and system.
Background technique
With the continuous construction of information-based smart grid, the equipment accessed in intelligent power distribution communication network is also continuously increased,
The scale of network also constantly expands, so that the complexity of network and isomery degree are also continuously improved, conventional electrical distribution net manages mould
Formula has been unable to meet new period power distribution network growth requirement, and there is an urgent need to the advanced technologies such as deep application Internet of Things, inherently mentions
Rise distribution network construction, O&M, management level.Distribution Internet of Things is that traditional industry technology and technology of Internet of things depth integration generate
A kind of novel electric power network morphology realizes complete perception, data fusion and the intelligent use of power distribution network by technology of Internet of things.Match
Electric network state monitoring business is in the key nodes such as public distribution transforming, feeder pillar, ring network cabinet, transmission line of electricity, switching station application low cost
Intelligent recognition and cognition technology, data acquisition and monitoring management are carried out to Distribution Network Equipment and route, realize Distribution Network Equipment
Data acquire and perceived entirely with state entirely, provide decision-making foundation for system intellectual analysis and control.
State of electric distribution network monitors business and traditional infrastructure class business such as power distribution automation, power information acquisition, distributed energy
Source is grid-connected equal with significant difference, and extensively, typically " decimal is presented in many kinds of, substantial amounts, network communication to the distribution of monitoring terminal
According to " feature, it is small that single terminal generates data volume, but conceptual data amount is big, in addition, status monitoring business need realizes that power distribution network is set
The on-line real time monitoring of standby state, running environment, distribution line, electric power facility protection etc., is presented periodical and randomness business
And the service feature deposited, wireless monitoring terminal had both needed timing to upload status data to monitoring main website, and also to have supported persistent state
The alerting service of Threshold Crossing Alert and the emergency event of variable quantity, this proposes communication mechanism selection and terminal access protocol higher
Requirement, study the communication bandwidth calculation method of business, normalization, the accuracy of flow measuring can be improved, it is at different levels to guarantee
The reasonability and science of service traffics measuring and calculating and the technical system selection of communication network, avoid the waste and limitation of resource, are industry
The scale of investment and construction scale of business reach more optimized, reasonable configuration.
Existing power distribution communication bandwidth calculation method, usually considers the uninterrupted of single business first, is then converging
Node summarizes the flow of each business, and calculation is complicated, and there are radio network gateway side randomness business and periodic traffics simultaneously
When depositing, the problem of bandwidth calculation difficulty.
Summary of the invention
Based on this, it is necessary to a kind of bandwidth prediction method and system towards power distribution communication business are provided, to simplify bandwidth
It calculates, solves the problems, such as radio network gateway side randomness business and periodic traffic and deposit Time Bandwidth dyscalculia.
To achieve the above object, the present invention provides following schemes:
A kind of bandwidth prediction method towards power distribution communication business, comprising:
Obtain power distribution network running state data；The power distribution network running state data is multiple biographies by being laid in power distribution station
Sensor terminal device collects；The power distribution network running state data includes periodic traffic data and randomness business number
According to；The periodic traffic data are the monitoring data that power distribution station timing monitors master station transmission to power distribution network；The randomness industry
Data of being engaged in are to monitor the monitoring data of master station transmission when the point being monitored of power distribution station occurs abnormal to power distribution network；
According to the power distribution network running state data, application layer transport protocol overhead data and data transmission delay, calculate
First bandwidth；First bandwidth is the prediction bandwidth of the first business section；The first business section is that single sensor is whole
Business section between end equipment and communication gate；
According to first bandwidth, the quantity of sensor terminal equipment and the coincidence of business, the second bandwidth is calculated；It is described
Second bandwidth is the prediction bandwidth of the second business section；The second business section includes between the first equipment collection and communication gate
Business section and the second equipment collection and communication gate between business section；The first equipment collection is by collection period
Property business datum sensor terminal equipment constitute；The second equipment collection is whole by the sensor of acquisition randomness business datum
End equipment is constituted；
According to second bandwidth, third bandwidth is calculated；The third bandwidth is the prediction bandwidth of third business section；Institute
It is disconnected to state business of the third business section between all the sensors terminal device and communication gate in communication gate coverage area
Face；
The third bandwidth is determined as to the prediction bandwidth of power distribution communication business.
Optionally, described to be passed according to the power distribution network running state data, application layer transport protocol overhead data and data
Defeated time delay calculates the first bandwidth, specifically includes:
Calculate the first transmitted data amount and the second transmitted data amount；First transmitted data amount is the first transmission data
The product of byte number and every byte bit number；Second transmitted data amount is the byte number and every byte ratio of the second transmission data
The product of special number；The first transmission data include periodic traffic data and application layer transport protocol overhead data；Described
Two transmission data include randomness business datum and application layer transport protocol overhead data；
Determine periodic traffic data transmission delay T1With randomness business data transmission delay T2；Wherein T1With periodicity
The communication cycle of business datum is equal, T1=kT2, k > 1；
According to first transmitted data amount and the periodic traffic data transmission delay, the basic band of first terminal is calculated
It is wide；The calculation formula of the first terminal primary bandwidth are as follows: first terminal primary bandwidth=(the byte number * of the first transmission data
Every byte bit number)/periodic traffic data transmission delay；
It is delayed according to second transmitted data amount and the randomness business data transmission, calculates the basic band of second terminal
It is wide；The calculation formula of the second terminal primary bandwidth are as follows: second terminal primary bandwidth=(the byte number * of the second transmission data
Every byte bit number) delay of/randomness business data transmission；
The first terminal primary bandwidth and the second terminal primary bandwidth are determined as the first bandwidth.
Optionally, described according to first bandwidth, the quantity of sensor terminal equipment and the coincidence of business, calculate the
Two bandwidth, specifically include:
Calculating cycle service bandwidth；The corresponding sensor terminal number of devices of periodic traffic bandwidth=periodic traffic
Measure the coincidence of the corresponding sensor terminal equipment of * first terminal primary bandwidth * periodic traffic；
Calculate randomness service bandwidth；The corresponding sensor terminal number of devices of randomness service bandwidth=randomness business
Measure the coincidence of the corresponding sensor terminal equipment of * second terminal primary bandwidth * randomness business；
The calculating cycle service bandwidth and the randomness service bandwidth are determined as the second bandwidth.
Optionally, described according to second bandwidth, third bandwidth is calculated, is specifically included:
Coincidence according to all the sensors terminal device in the second bandwidth calculation communication gate coverage area；Institute
State coincidence α=f (α of all the sensors terminal device in communication gate coverage area1,α2), α ∈ (0,1), wherein α1Table
Show the coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of the second bandwidth, α2Indicate the second bandwidth it is corresponding with
The coincidence of the corresponding sensor terminal equipment of machine business；
Coincidence according to all the sensors terminal device in the communication gate coverage area calculates third bandwidth；
The third bandwidth=(the corresponding sensor terminal number of devices * first terminal primary bandwidth of periodic traffic+with
The corresponding sensor terminal number of devices * second terminal primary bandwidth of machine business) all biographies in * communication gate coverage area
The coincidence of sensor terminal device.
Optionally, described according to second bandwidth, third bandwidth is calculated, is specifically included:
Coincidence according to all the sensors terminal device in the second bandwidth calculation communication gate coverage area；Institute
State coincidence α=f (α of all the sensors terminal device in communication gate coverage area1,α2), α ∈ (0,1), wherein α1Table
Show the coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of the second bandwidth, α2Indicate the second bandwidth it is corresponding with
The coincidence of the corresponding sensor terminal equipment of machine business；
Coincidence according to all the sensors terminal device in the communication gate coverage area calculates third bandwidth；
The third bandwidth=[(corresponding the first transmitted data amount of the sensor terminal number of devices *+k* of periodic traffic
Corresponding the second transmitted data amount of sensor terminal number of devices * of randomness business)/periodic traffic data transmission delay] * is logical
Believe the coincidence * redundancy coefficient * coefficient of reliability of all the sensors terminal device in gateway coverage area；
Wherein, the big of redundancy is reserved in the redundancy coefficient reaction network administration overhead, information encryption overhead and network jitter
It is small；The ability of the coefficient of reliability reaction network transferring load.
The present invention also provides a kind of bandwidth prediction systems towards power distribution communication business, comprising:
Data acquisition module, for obtaining power distribution network running state data；The power distribution network running state data is by cloth
It is located at what multiple sensor terminal equipment of power distribution station collected；The power distribution network running state data includes periodic traffic
Data and randomness business datum；The periodic traffic data are the monitoring that power distribution station timing monitors master station transmission to power distribution network
Data；The randomness business datum is to monitor the monitoring of master station transmission when the point being monitored of power distribution station occurs abnormal to power distribution network
Data；
First bandwidth calculation module, for according to the power distribution network running state data, application layer transport protocol expense number
According to and data transmission delay, calculate the first bandwidth；First bandwidth is the prediction bandwidth of the first business section；First industry
Business section of the business section between single sensor terminal equipment and communication gate；
Second bandwidth calculation module, for according to first bandwidth, sensor terminal equipment quantity and business and
Hair rate calculates the second bandwidth；Second bandwidth is the prediction bandwidth of the second business section；The second business section includes the
The business section between business section and the second equipment collection and communication gate between one equipment collection and communication gate；It is described
First equipment collection is made of the sensor terminal equipment of collection period business datum；The second equipment collection be by acquire with
The sensor terminal equipment of machine business datum is constituted；
Third bandwidth calculation module, for calculating third bandwidth according to second bandwidth；The third bandwidth is third
The prediction bandwidth of business section；The third business section be communication gate coverage area in all the sensors terminal device with
Business section between communication gate；
Power distribution communication bandwidth determination module, for the third bandwidth to be determined as to the prediction bandwidth of power distribution communication business.
Optionally, first bandwidth calculation module, specifically includes:
Data volume computing unit, for calculating the first transmitted data amount and the second transmitted data amount；The first transmission number
It is the byte number of the first transmission data and the product of every byte bit number according to amount；Second transmitted data amount is the second transmission number
According to byte number and every byte bit number product；The first transmission data include periodic traffic data and application layer transmission
Protocol overhead data；The second transmission data include randomness business datum and application layer transport protocol overhead data；
Be delayed determination unit, for determining periodic traffic data transmission delay T1It is delayed with randomness business data transmission
T2；Wherein T1It is equal with the communication cycle of periodic traffic data, T1=kT2, k > 1；
First terminal primary bandwidth computing unit, for according to first transmitted data amount and the periodic traffic number
According to transmission delay, first terminal primary bandwidth is calculated；The calculation formula of the first terminal primary bandwidth are as follows: first terminal is basic
Bandwidth=(the every byte bit numbers of byte number * of the first transmission data)/periodic traffic data transmission delay；
Second terminal primary bandwidth computing unit, for according to second transmitted data amount and the randomness business number
According to transmission delay, second terminal primary bandwidth is calculated；The calculation formula of the second terminal primary bandwidth are as follows: second terminal is basic
Bandwidth=(the every byte bit numbers of byte number * of the second transmission data)/randomness business data transmission delay；
First bandwidth determination unit, for the first terminal primary bandwidth and the second terminal primary bandwidth is true
It is set to the first bandwidth.
Optionally, second bandwidth calculation module, specifically includes:
Periodic traffic bandwidth calculation unit is used for calculating cycle service bandwidth；Periodic traffic bandwidth=periodicity
The corresponding sensor terminal equipment of the corresponding sensor terminal number of devices * first terminal primary bandwidth * periodic traffic of business
Coincidence；
Randomness service bandwidth computing unit, for calculating randomness service bandwidth；Randomness service bandwidth=randomness
The corresponding sensor terminal equipment of the corresponding sensor terminal number of devices * second terminal primary bandwidth * randomness business of business
Coincidence；
Second bandwidth determination unit, for the calculating cycle service bandwidth and the randomness service bandwidth is true
It is set to the second bandwidth.
Optionally, the third bandwidth calculation module, specifically includes:
First computing unit, for whole according to all the sensors in the second bandwidth calculation communication gate coverage area
The coincidence of end equipment；Coincidence α=f (α of all the sensors terminal device in the communication gate coverage area1,α2), α
∈ (0,1), wherein α1Indicate the coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of the second bandwidth, α2It indicates
The coincidence of the corresponding sensor terminal equipment of the corresponding randomness business of second bandwidth；
First determination unit, for according to the concurrent of all the sensors terminal device in the communication gate coverage area
Rate calculates third bandwidth；
The third bandwidth=(the corresponding sensor terminal number of devices * first terminal primary bandwidth of periodic traffic+with
The corresponding sensor terminal number of devices * second terminal primary bandwidth of machine business) all biographies in * communication gate coverage area
The coincidence of sensor terminal device.
Optionally, the third bandwidth calculation module, specifically includes:
Second computing unit, for whole according to all the sensors in the second bandwidth calculation communication gate coverage area
The coincidence of end equipment；Coincidence α=f (α of all the sensors terminal device in the communication gate coverage area1,α2), α
∈ (0,1), wherein α1Indicate the coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of the second bandwidth, α2It indicates
The coincidence of the corresponding sensor terminal equipment of the corresponding randomness business of second bandwidth；
Second determination unit, for according to the concurrent of all the sensors terminal device in the communication gate coverage area
Rate calculates third bandwidth；
The third bandwidth=[(corresponding the first transmitted data amount of the sensor terminal number of devices *+k* of periodic traffic
Corresponding the second transmitted data amount of sensor terminal number of devices * of randomness business)/periodic traffic data transmission delay] * is logical
Believe the coincidence * redundancy coefficient * coefficient of reliability of all the sensors terminal device in gateway coverage area；
Wherein, the big of redundancy is reserved in the redundancy coefficient reaction network administration overhead, information encryption overhead and network jitter
It is small；The ability of the coefficient of reliability reaction network transferring load.
Compared with prior art, the beneficial effects of the present invention are:
The invention proposes a kind of bandwidth prediction method and system towards power distribution communication business, are calculating the first bandwidth
When, the propagation delay time characteristic of different data business is comprehensively considered, so that the bandwidth calculation of network lowermost layer is more accurate；It is counting
When calculating the second bandwidth, the coincidence of different business is considered for different data business, periodic traffic terminal quantity is huge, leads to
Frequently, randomness business only occurs in when equipment exception occurs or break down letter, propagation delay time is required it is high, but simultaneously
Hair rate is relatively small；When calculating third bandwidth, two kinds of characteristics of propagation delay time and terminal concurrence rate have been comprehensively considered.Letter of the invention
Change bandwidth calculation, solve the problems, such as radio network gateway side randomness business and periodic traffic and deposits Time Bandwidth dyscalculia；
The present invention improves the normalization of flow measuring, accuracy, avoids the waste and limitation of bandwidth resources, advises the investment of business
Mould and construction scale reach more optimized, reasonable configuration, provide for the planning of communication network, design, the choice of technology and the network optimization
Foundation.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of distribution of embodiment of the present invention Internet of Things condition monitoring system；
Fig. 2 is Internet of Things of embodiment of the present invention network communication protocol architecture diagram；
Fig. 3 is distribution of embodiment of the present invention Internet of Things status monitoring operation system traffic model figure；
Fig. 4 is a kind of flow chart of the bandwidth prediction method towards power distribution communication business of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
The bandwidth prediction method towards power distribution communication business in the present embodiment is used for distribution Internet of Things condition monitoring system
In.Distribution Internet of Things condition monitoring system is introduced first.Fig. 1 is the knot of distribution of embodiment of the present invention Internet of Things condition monitoring system
Structure schematic diagram.Referring to Fig. 1, distribution Internet of Things condition monitoring system is made of four parts, is sensing layer, network layer, platform respectively
Layer and application layer.Sensing layer is the producer of data, passes through sensor terminal equipment (sensing node) acquisition state data, network
Layer realizes transmission of the data between sensing layer and podium level, and podium level, that is, monitoring system main website (monitoring center), is data
Consumer realizes status data analysis, processing, storage and shares that application layer is provided and reliably answered for dispatching of power netwoks personnel and user
With service, including status monitoring, distribution O&M, fault warning, fault location etc..
The sensing layer includes that multiple sensor terminal equipment acquire power distribution network running state data in real time.It is produced according to data
Monitoring business is divided into periodic data business and random data business by raw mode and communication mechanism.Therefore, power distribution network is run
Status data includes periodic traffic data and randomness business datum.The periodic traffic data are power distribution station timing to matching
The monitoring data of power network monitoring master station transmission；The generation and transmission of the randomness business datum only occur in point being monitored appearance
When data exception or occurrence of equipment failure.Periodic traffic data are the state quantity data of monitoring point, including temperature, wet
Degree, smokescope, distribution line failure, distribution shaft tower tilt angle, Leakage Current value, noise decibels etc., feature is data
Many kinds of, data generate stabilization, and communication is frequent；Randomness business datum is paroxysmal warning information, including periodical industry
Business data continue the exception of the Threshold Crossing Alert of variable quantity, institute's inner product (leaching) water of standing alarm, the alarm of line fault electric current and station institute's door
(pass) alarm is opened, feature is more demanding to real-time and precision.
Fig. 2 is Internet of Things of embodiment of the present invention network communication protocol architecture diagram.Referring to fig. 2, network communication protocol includes setting
Standby layer, physical layer protocol, data link layer protocol, network layer protocol and application layer protocol.Network layer is divided into two in traffic model
A part, a part are sensor terminal equipment to communication gate, and another part is communication gate to monitoring main website, the present embodiment
The bandwidth prediction method towards power distribution communication business for sensor terminal equipment to the bandwidth prediction between communication gate.
Fig. 3 is that distribution of embodiment of the present invention Internet of Things status monitoring operation system traffic model figure will be sensed referring to Fig. 3
Device terminal device is to can be divided into 3 different business sections, the first business section a between communication gate1, the second business section a2,
Third business section a3, the bandwidth prediction method of different business section is respectively: the state of electric distribution network based on data transmission delay
Monitor terminal primary bandwidth prediction technique, random data business and periodic data service bandwidth prediction side based on coincidence
Method and gateway converge bandwidth prediction technique.The bandwidth prediction method in the present embodiment towards power distribution communication business is carried out below detailed
It describes in detail bright.
Fig. 4 is a kind of flow chart of the bandwidth prediction method towards power distribution communication business of the embodiment of the present invention.Referring to fig. 4,
The bandwidth prediction method towards power distribution communication business of embodiment includes:
Step S1: power distribution network running state data is obtained；The power distribution network running state data is by being laid in power distribution station
Multiple sensor terminal equipment collect；The power distribution network running state data includes periodic traffic data and random
Property business datum.
Step S2: when according to the transmission of the power distribution network running state data, application layer transport protocol overhead data and data
Prolong, calculates the first bandwidth；First bandwidth is the prediction bandwidth of the first business section.
Business section of the first business section between single sensor terminal equipment and communication gate.
First bandwidth is terminal primary bandwidth.
The step S2, specifically includes:
Calculate the first transmitted data amount and the second transmitted data amount；First transmitted data amount is the first transmission data
The product of byte number and every byte bit number；Second transmitted data amount is the byte number and every byte ratio of the second transmission data
The product of special number；The first transmission data include periodic traffic data and application layer transport protocol overhead data；Described
Two transmission data include randomness business datum and application layer transport protocol overhead data.Application layer transport protocol overhead data
Method of determination: as shown in Fig. 2, application layer protocol includes 101/104 specification of electric power, MQTT Internet of Things fidonetFido etc., it can be according to reality
Application demand selects application layer communication protocol, and according to 104 specifications, protocol overhead is 21 bytes, according to MQTT agreement, agreement
Minimum 9 bytes of expense.As an alternative embodiment, transmission data further include corresponding sensor identification and correspondence
Monitoring time etc., these data can be adjusted according to actual monitoring precision.
Determine periodic traffic data transmission delay T1With randomness business data transmission delay T2.Due to periodic data
Business is not high to requirement of real-time, as long as guaranteeing that data transmission is completed before next cycle arrival, therefore T1It is desirable
Value is the communication cycle of periodic traffic data, and random data business is mostly the transmission of warning information, to requirement of real-time
Height, so being constantly present such relationship: T between the two1> T2, T1=kT2, k > 1.
According to first transmitted data amount and the periodic traffic data transmission delay, the basic band of first terminal is calculated
It is wide；The calculation formula of the first terminal primary bandwidth are as follows: first terminal primary bandwidth=(the byte number * of the first transmission data
Every byte bit number)/periodic traffic data transmission delay.
It is delayed according to second transmitted data amount and the randomness business data transmission, calculates the basic band of second terminal
It is wide；The calculation formula of the second terminal primary bandwidth are as follows: second terminal primary bandwidth=(the byte number * of the second transmission data
Every byte bit number) delay of/randomness business data transmission.
The first terminal primary bandwidth and the second terminal primary bandwidth are determined as the first bandwidth.
Step S3: according to first bandwidth, the quantity of sensor terminal equipment and the coincidence of business, the second band is calculated
It is wide；Second bandwidth is the prediction bandwidth of the second business section.
The second business section includes the business section and the second equipment collection between the first equipment collection and communication gate
Business section between communication gate；The first equipment collection is the sensor terminal equipment by collection period business datum
It constitutes；The second equipment collection is made of the sensor terminal equipment of acquisition randomness business datum.
The step S3, specifically includes:
Calculating cycle service bandwidth；The corresponding sensor terminal number of devices of periodic traffic bandwidth=periodic traffic
Measure the coincidence of the corresponding sensor terminal equipment of * first terminal primary bandwidth * periodic traffic.
Calculate randomness service bandwidth；The corresponding sensor terminal number of devices of randomness service bandwidth=randomness business
Measure the coincidence of the corresponding sensor terminal equipment of * second terminal primary bandwidth * randomness business.
The calculating cycle service bandwidth and the randomness service bandwidth are determined as the second bandwidth.
Step S4: according to second bandwidth, third bandwidth is calculated；The third bandwidth is the prediction of third business section
Bandwidth.
The third business section be communication gate coverage area in all the sensors terminal device and communication gate it
Between business section.The third bandwidth is gateway convergence bandwidth, by periodic traffic bandwidth and randomness service bandwidth group
At, calculate gateway convergence bandwidth when, comprehensively consider the concurrent of all the sensors terminal device in communication gate coverage area
Rate.
The step S4, specifically includes:
Coincidence according to all the sensors terminal device in the second bandwidth calculation communication gate coverage area；Institute
State coincidence α=f (α of all the sensors terminal device in communication gate coverage area1,α2), α ∈ (0,1), wherein α1Table
Show the coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of the second bandwidth, α2Indicate the second bandwidth it is corresponding with
The coincidence of the corresponding sensor terminal equipment of machine business.
Coincidence according to all the sensors terminal device in the communication gate coverage area calculates third bandwidth；Institute
State third bandwidth=(corresponding sensor terminal number of devices * first terminal primary bandwidth+randomness business pair of periodic traffic
The sensor terminal number of devices * second terminal primary bandwidth answered) all the sensors terminal in * communication gate coverage area sets
Standby coincidence.
Coincidence α can use two kinds of situations, 100% limit is concurrently and 30% normality is concurrent when real network is planned.Consider
Redundancy is reserved in network management overhead, information encryption overhead, network jitter, be should be third bandwidth calculation and is added certain redundancy coefficient
R and coefficient of reliability K, third bandwidth can obtain another describing mode:
The third bandwidth=[(corresponding the first transmitted data amount of the sensor terminal number of devices *+k* of periodic traffic
Corresponding the second transmitted data amount of sensor terminal number of devices * of randomness business)/periodic traffic data transmission delay] * is logical
Believe the coincidence * redundancy coefficient * coefficient of reliability of all the sensors terminal device in gateway coverage area；Wherein, described superfluous
The size of redundancy is reserved in remaining coefficient reaction network administration overhead, information encryption overhead and network jitter；The coefficient of reliability is anti-
The ability for answering network transitions to load.
Step S5: the third bandwidth is determined as to the prediction bandwidth of power distribution communication business.
The bandwidth prediction method towards power distribution communication business of the present embodiment, has comprehensively considered the transmission of different data business
Delay character predicts the bandwidth of single terminal, more accurate from the bandwidth calculation of network lowermost layer；Calculating different numbers
The coincidence of different business is considered when according to business；When calculating gateway convergence bandwidth, propagation delay time and terminal have been comprehensively considered
Two kinds of characteristics of coincidence.The present embodiment bandwidth calculation is easier flexibly, practical；With scalability, to instructing distribution
Planning, construction, the transformation of Internet of Things condition monitoring system have practical directive significance.
The present invention also provides a kind of bandwidth prediction systems towards power distribution communication business, comprising:
Data acquisition module, for obtaining power distribution network running state data；The power distribution network running state data is by cloth
It is located at what multiple sensor terminal equipment of power distribution station collected；The power distribution network running state data includes periodic traffic
Data and randomness business datum；The periodic traffic data are the monitoring that power distribution station timing monitors master station transmission to power distribution network
Data；The randomness business datum is to monitor the monitoring of master station transmission when the point being monitored of power distribution station occurs abnormal to power distribution network
Data.
First bandwidth calculation module, for according to the power distribution network running state data, application layer transport protocol expense number
According to and data transmission delay, calculate the first bandwidth；First bandwidth is the prediction bandwidth of the first business section；First industry
Business section of the business section between single sensor terminal equipment and communication gate.
Second bandwidth calculation module, for according to first bandwidth, sensor terminal equipment quantity and business and
Hair rate calculates the second bandwidth；Second bandwidth is the prediction bandwidth of the second business section；The second business section includes the
The business section between business section and the second equipment collection and communication gate between one equipment collection and communication gate；It is described
First equipment collection is made of the sensor terminal equipment of collection period business datum；The second equipment collection be by acquire with
The sensor terminal equipment of machine business datum is constituted.
Third bandwidth calculation module, for calculating third bandwidth according to second bandwidth；The third bandwidth is third
The prediction bandwidth of business section；The third business section be communication gate coverage area in all the sensors terminal device with
Business section between communication gate.
Power distribution communication bandwidth determination module, for the third bandwidth to be determined as to the prediction bandwidth of power distribution communication business.
As an alternative embodiment, first bandwidth calculation module, specifically includes:
Data volume computing unit, for calculating the first transmitted data amount and the second transmitted data amount；The first transmission number
It is the byte number of the first transmission data and the product of every byte bit number according to amount；Second transmitted data amount is the second transmission number
According to byte number and every byte bit number product；The first transmission data include periodic traffic data and application layer transmission
Protocol overhead data；The second transmission data include randomness business datum and application layer transport protocol overhead data；
Be delayed determination unit, for determining periodic traffic data transmission delay T1It is delayed with randomness business data transmission
T2；Wherein T1It is equal with the communication cycle of periodic traffic data, T1=kT2, k > 1；
First terminal primary bandwidth computing unit, for according to first transmitted data amount and the periodic traffic number
According to transmission delay, first terminal primary bandwidth is calculated；The calculation formula of the first terminal primary bandwidth are as follows: first terminal is basic
Bandwidth=(the every byte bit numbers of byte number * of the first transmission data)/periodic traffic data transmission delay；
Second terminal primary bandwidth computing unit, for according to second transmitted data amount and the randomness business number
According to transmission delay, second terminal primary bandwidth is calculated；The calculation formula of the second terminal primary bandwidth are as follows: second terminal is basic
Bandwidth=(the every byte bit numbers of byte number * of the second transmission data)/randomness business data transmission delay；
First bandwidth determination unit, for the first terminal primary bandwidth and the second terminal primary bandwidth is true
It is set to the first bandwidth.
As an alternative embodiment, second bandwidth calculation module, specifically includes:
Periodic traffic bandwidth calculation unit is used for calculating cycle service bandwidth；Periodic traffic bandwidth=periodicity
The corresponding sensor terminal equipment of the corresponding sensor terminal number of devices * first terminal primary bandwidth * periodic traffic of business
Coincidence.
Randomness service bandwidth computing unit, for calculating randomness service bandwidth；Randomness service bandwidth=randomness
The corresponding sensor terminal equipment of the corresponding sensor terminal number of devices * second terminal primary bandwidth * randomness business of business
Coincidence.
Second bandwidth determination unit, for the calculating cycle service bandwidth and the randomness service bandwidth is true
It is set to the second bandwidth.
As an alternative embodiment, the third bandwidth calculation module, specifically includes:
First computing unit, for whole according to all the sensors in the second bandwidth calculation communication gate coverage area
The coincidence of end equipment；Coincidence α=f (α of all the sensors terminal device in the communication gate coverage area1,α2), α
∈ (0,1), wherein α1Indicate the coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of the second bandwidth, α2It indicates
The coincidence of the corresponding sensor terminal equipment of the corresponding randomness business of second bandwidth.
First determination unit, for according to the concurrent of all the sensors terminal device in the communication gate coverage area
Rate calculates third bandwidth.
The third bandwidth=(the corresponding sensor terminal number of devices * first terminal primary bandwidth of periodic traffic+with
The corresponding sensor terminal number of devices * second terminal primary bandwidth of machine business) all biographies in * communication gate coverage area
The coincidence of sensor terminal device.
As an alternative embodiment, the third bandwidth calculation module, specifically includes:
Second computing unit, for whole according to all the sensors in the second bandwidth calculation communication gate coverage area
The coincidence of end equipment；Coincidence α=f (α of all the sensors terminal device in the communication gate coverage area1,α2), α
∈ (0,1), wherein α1Indicate the coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of the second bandwidth, α2It indicates
The coincidence of the corresponding sensor terminal equipment of the corresponding randomness business of second bandwidth.
Second determination unit, for according to the concurrent of all the sensors terminal device in the communication gate coverage area
Rate calculates third bandwidth.
The third bandwidth=[(corresponding the first transmitted data amount of the sensor terminal number of devices *+k* of periodic traffic
Corresponding the second transmitted data amount of sensor terminal number of devices * of randomness business)/periodic traffic data transmission delay] * is logical
Believe the coincidence * redundancy coefficient * coefficient of reliability of all the sensors terminal device in gateway coverage area.
Wherein, the big of redundancy is reserved in the redundancy coefficient reaction network administration overhead, information encryption overhead and network jitter
It is small；The ability of the coefficient of reliability reaction network transferring load.
The bandwidth prediction system towards power distribution communication business of the present embodiment can simplify bandwidth calculation, solve wireless network
The problem of closing side randomness business and periodic traffic and depositing Time Bandwidth dyscalculia.
For the system disclosed in the embodiment, since it is corresponded to the methods disclosed in the examples, so the ratio of description
Relatively simple, reference may be made to the description of the method.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of bandwidth prediction method towards power distribution communication business characterized by comprising
Obtain power distribution network running state data；The power distribution network running state data is multiple sensors by being laid in power distribution station
What terminal device collected；The power distribution network running state data includes periodic traffic data and randomness business datum；
The periodic traffic data are the monitoring data that power distribution station timing monitors master station transmission to power distribution network；The randomness business number
According to the monitoring data for monitoring master station transmission when occurring abnormal for the point being monitored of power distribution station to power distribution network；
According to the power distribution network running state data, application layer transport protocol overhead data and data transmission delay, first is calculated
Bandwidth；First bandwidth is the prediction bandwidth of the first business section；The first business section is that single sensor terminal is set
The standby business section between communication gate；
According to first bandwidth, the quantity of sensor terminal equipment and the coincidence of business, the second bandwidth is calculated；Described second
Bandwidth is the prediction bandwidth of the second business section；The second business section includes the industry between the first equipment collection and communication gate
The business section being engaged between section and the second equipment collection and communication gate；The first equipment collection is by collection period industry
The sensor terminal equipment for data of being engaged in is constituted；The second equipment collection is set by the sensor terminal of acquisition randomness business datum
It is standby to constitute；
According to second bandwidth, third bandwidth is calculated；The third bandwidth is the prediction bandwidth of third business section；Described
Three business sections are the business section between all the sensors terminal device and communication gate in communication gate coverage area；
The third bandwidth is determined as to the prediction bandwidth of power distribution communication business.
2. a kind of bandwidth prediction method towards power distribution communication business according to claim 1, which is characterized in that it is described according to
According to the power distribution network running state data, application layer transport protocol overhead data and data transmission delay, the first bandwidth, tool are calculated
Body includes:
Calculate the first transmitted data amount and the second transmitted data amount；First transmitted data amount is the byte of the first transmission data
Several products with every byte bit number；Second transmitted data amount is the byte number and every byte bit number of the second transmission data
Product；The first transmission data include periodic traffic data and application layer transport protocol overhead data；Described second passes
Transmission of data includes randomness business datum and application layer transport protocol overhead data；
Determine periodic traffic data transmission delay T1With randomness business data transmission delay T2；Wherein T1With periodic traffic
The communication cycle of data is equal, T1=kT2, k > 1；
According to first transmitted data amount and the periodic traffic data transmission delay, first terminal primary bandwidth is calculated；
The calculation formula of the first terminal primary bandwidth are as follows: first terminal primary bandwidth=(the every word of byte number * of the first transmission data
Save bit number)/periodic traffic data transmission delay；
It is delayed according to second transmitted data amount and the randomness business data transmission, calculates second terminal primary bandwidth；
The calculation formula of the second terminal primary bandwidth are as follows: second terminal primary bandwidth=(the every word of byte number * of the second transmission data
Save bit number) delay of/randomness business data transmission；
The first terminal primary bandwidth and the second terminal primary bandwidth are determined as the first bandwidth.
3. a kind of bandwidth prediction method towards power distribution communication business according to claim 2, which is characterized in that it is described according to
According to first bandwidth, the quantity of sensor terminal equipment and the coincidence of business, the second bandwidth is calculated, is specifically included:
Calculating cycle service bandwidth；The corresponding sensor terminal number of devices * of periodic traffic bandwidth=periodic traffic
The coincidence of the corresponding sensor terminal equipment of one terminal primary bandwidth * periodic traffic；
Calculate randomness service bandwidth；The corresponding sensor terminal number of devices * of randomness service bandwidth=randomness business
The coincidence of the corresponding sensor terminal equipment of two terminal primary bandwidth * randomness business；
The calculating cycle service bandwidth and the randomness service bandwidth are determined as the second bandwidth.
4. a kind of bandwidth prediction method towards power distribution communication business according to claim 3, which is characterized in that it is described according to
According to second bandwidth, third bandwidth is calculated, is specifically included:
Coincidence according to all the sensors terminal device in the second bandwidth calculation communication gate coverage area；It is described logical
Believe coincidence α=f (α of all the sensors terminal device in gateway coverage area1,α2), α ∈ (0,1), wherein α1Indicate the
The coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of two bandwidth, α2Indicate the corresponding randomness of the second bandwidth
The coincidence of the corresponding sensor terminal equipment of business；
Coincidence according to all the sensors terminal device in the communication gate coverage area calculates third bandwidth；
The third bandwidth=(the corresponding sensor terminal number of devices * first terminal primary bandwidth+randomness of periodic traffic
The corresponding sensor terminal number of devices * second terminal primary bandwidth of business) all the sensors in * communication gate coverage area
The coincidence of terminal device.
5. a kind of bandwidth prediction method towards power distribution communication business according to claim 3, which is characterized in that it is described according to
According to second bandwidth, third bandwidth is calculated, is specifically included:
Coincidence according to all the sensors terminal device in the second bandwidth calculation communication gate coverage area；It is described logical
Believe coincidence α=f (α of all the sensors terminal device in gateway coverage area1,α2), α ∈ (0,1), wherein α1Indicate the
The coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of two bandwidth, α2Indicate the corresponding randomness of the second bandwidth
The coincidence of the corresponding sensor terminal equipment of business；
Coincidence according to all the sensors terminal device in the communication gate coverage area calculates third bandwidth；
The third bandwidth=[(corresponding the first transmitted data amount of the sensor terminal number of devices *+k* of periodic traffic is random
Corresponding the second transmitted data amount of sensor terminal number of devices * of property business)/periodic traffic data transmission delay] * communication network
Close the coincidence * redundancy coefficient * coefficient of reliability of all the sensors terminal device in coverage area；
Wherein, the size of redundancy is reserved in the redundancy coefficient reaction network administration overhead, information encryption overhead and network jitter；Institute
State the ability of coefficient of reliability reaction network transferring load.
6. a kind of bandwidth prediction system towards power distribution communication business characterized by comprising
Data acquisition module, for obtaining power distribution network running state data；The power distribution network running state data is by being laid in
What multiple sensor terminal equipment of power distribution station collected；The power distribution network running state data includes periodic traffic data
With randomness business datum；The periodic traffic data are the monitoring number that power distribution station timing monitors master station transmission to power distribution network
According to；The randomness business datum is the monitoring number for monitoring master station transmission when the point being monitored of power distribution station occurs abnormal to power distribution network
According to；
First bandwidth calculation module, for according to the power distribution network running state data, application layer transport protocol overhead data and
Data transmission delay calculates the first bandwidth；First bandwidth is the prediction bandwidth of the first business section；First business is disconnected
Business section of the face between single sensor terminal equipment and communication gate；
Second bandwidth calculation module, for according to first bandwidth, the quantity of sensor terminal equipment and the coincidence of business,
Calculate the second bandwidth；Second bandwidth is the prediction bandwidth of the second business section；The second business section is set including first
The business section between business section and the second equipment collection and communication gate between standby collection and communication gate；Described first
Equipment collection is made of the sensor terminal equipment of collection period business datum；The second equipment collection is by acquisition randomness
The sensor terminal equipment of business datum is constituted；
Third bandwidth calculation module, for calculating third bandwidth according to second bandwidth；The third bandwidth is third business
The prediction bandwidth of section；The third business section be communication gate coverage area in all the sensors terminal device with communicate
Business section between gateway；
Power distribution communication bandwidth determination module, for the third bandwidth to be determined as to the prediction bandwidth of power distribution communication business.
7. a kind of bandwidth prediction system towards power distribution communication business according to claim 6, which is characterized in that described
One bandwidth calculation module, specifically includes:
Data volume computing unit, for calculating the first transmitted data amount and the second transmitted data amount；First transmitted data amount
For the byte number of the first transmission data and the product of every byte bit number；Second transmitted data amount is the second transmission data
The product of byte number and every byte bit number；The first transmission data include periodic traffic data and application layer transport protocol
Overhead data；The second transmission data include randomness business datum and application layer transport protocol overhead data；
Be delayed determination unit, for determining periodic traffic data transmission delay T1With randomness business data transmission delay T2；Its
Middle T1It is equal with the communication cycle of periodic traffic data, T1=kT2, k > 1；
First terminal primary bandwidth computing unit, for being passed according to first transmitted data amount and the periodic traffic data
Defeated delay calculates first terminal primary bandwidth；The calculation formula of the first terminal primary bandwidth are as follows: first terminal primary bandwidth
=(the every byte bit numbers of byte number * of the first transmission data)/periodic traffic data transmission delay；
Second terminal primary bandwidth computing unit, for being passed according to second transmitted data amount and the randomness business datum
Defeated delay calculates second terminal primary bandwidth；The calculation formula of the second terminal primary bandwidth are as follows: second terminal primary bandwidth
=(the every byte bit numbers of byte number * of the second transmission data)/randomness business data transmission delay；
First bandwidth determination unit, for the first terminal primary bandwidth and the second terminal primary bandwidth to be determined as
First bandwidth.
8. a kind of bandwidth prediction system towards power distribution communication business according to claim 7, which is characterized in that described
Two bandwidth calculation modules, specifically include:
Periodic traffic bandwidth calculation unit is used for calculating cycle service bandwidth；Periodic traffic bandwidth=periodic traffic
The corresponding sensor terminal equipment of corresponding sensor terminal number of devices * first terminal primary bandwidth * periodic traffic and
Hair rate；
Randomness service bandwidth computing unit, for calculating randomness service bandwidth；Randomness service bandwidth=randomness business
The corresponding sensor terminal equipment of corresponding sensor terminal number of devices * second terminal primary bandwidth * randomness business and
Hair rate；
Second bandwidth determination unit, for the calculating cycle service bandwidth and the randomness service bandwidth to be determined as
Second bandwidth.
9. a kind of bandwidth prediction system towards power distribution communication business according to claim 8, which is characterized in that described
Three bandwidth calculation modules, specifically include:
First computing unit, for being set according to all the sensors terminal in the second bandwidth calculation communication gate coverage area
Standby coincidence；Coincidence α=f (α of all the sensors terminal device in the communication gate coverage area1,α2), α ∈
(0,1), wherein α1Indicate the coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of the second bandwidth, α2Indicate the
The coincidence of the corresponding sensor terminal equipment of the corresponding randomness business of two bandwidth；
First determination unit, based on the coincidence according to all the sensors terminal device in the communication gate coverage area
Calculate third bandwidth；
The third bandwidth=(the corresponding sensor terminal number of devices * first terminal primary bandwidth+randomness of periodic traffic
The corresponding sensor terminal number of devices * second terminal primary bandwidth of business) all the sensors in * communication gate coverage area
The coincidence of terminal device.
10. a kind of bandwidth prediction system towards power distribution communication business according to claim 8, which is characterized in that described
Third bandwidth calculation module, specifically includes:
Second computing unit, for being set according to all the sensors terminal in the second bandwidth calculation communication gate coverage area
Standby coincidence；Coincidence α=f (α of all the sensors terminal device in the communication gate coverage area1,α2), α ∈
(0,1), wherein α1Indicate the coincidence of the corresponding sensor terminal equipment of the corresponding periodic traffic of the second bandwidth, α2Indicate the
The coincidence of the corresponding sensor terminal equipment of the corresponding randomness business of two bandwidth；
Second determination unit, based on the coincidence according to all the sensors terminal device in the communication gate coverage area
Calculate third bandwidth；
The third bandwidth=[(corresponding the first transmitted data amount of the sensor terminal number of devices *+k* of periodic traffic is random
Corresponding the second transmitted data amount of sensor terminal number of devices * of property business)/periodic traffic data transmission delay] * communication network
Close the coincidence * redundancy coefficient * coefficient of reliability of all the sensors terminal device in coverage area；
Wherein, the size of redundancy is reserved in the redundancy coefficient reaction network administration overhead, information encryption overhead and network jitter；Institute
State the ability of coefficient of reliability reaction network transferring load.
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