CN104993987A - Dual-network transmission method and device for power distribution service data - Google Patents

Abstract

The invention relates to a dual-network transmission method and device for power distribution service data. According to the method,different service priorities and transmission security coefficients are set for the service types of the power distribution service data, so that a network selection decision value is calculated in combination with a network selection weight and a network selection initial decision value, and the network selection weight is calculated according to the service priority and the transmission security coefficient of the power distribution service. Through the adoption of the method disclosed by the invention, the service priorities and the transmission security coefficients of the power distribution services become parameters influencing the network selection; in a network selecting process, a first network or a second network is selected for transmission according to a comparison result of the network selection decision value and the threshold value of the service type, therefore, an adaptive network is selected for transmission according to the service type of the power distribution service in consideration of the demands of different service types, thereby reasonably arranging network resources and effectively utilizing the network resources.

Description

The adapted electricity service data transmission method of dual network and device

Technical field

The present invention relates to field of network transmission, particularly relate to a kind of adapted electricity service data transmission method and device of dual network.

Background technology

TD-LTE common network refers to the civilian TD-LTE mobile communications network of mobile communication carrier's operation, also comprises the TD-LTE mobile communications network that some industry units build on public frequency band simultaneously.These mobile communications networks generally all have sufficient band width in physical resource, and frequency is distributed on the high bands such as 1.8G, 2.4G, 2.6G, and the terminal ecosystem is ripe, develops rapidly play the important and pivotal role for LTE.

TD-LTE power private network refers to the business demand towards adapted electricity side and transmission side, is deployed in 230MHz electric power specific authorisation frequency range, is the wide covering for the power consumer degree of depth customizes, high security, Large Copacity, high efficiency TD-LTE private wireless network system.Meanwhile, electric power WiMAX LTE230 system can directly be disposed in 230MHz electric power specific authorisation frequency range, meets countryto the technology upgrading transformation policy of low-frequency range.Electric power WiMAX LTE230 system has power information collection, transmission line monitoring, distribution automation, spatial load forecasting, emergent video in power industry main support business, speedily carry out rescue work commander etc.And LTE230 system has, and wide covering, Large Copacity, high security, high efficiency, reliability are strong, frequency spectrum strong adaptability, deployment and the advantage such as expansion is level and smooth.

Electric power WiMAX LTE230 system works is in 230MHz frequency range, and compared with TD-LTE public frequency band, signal propagation distance is farther, and diffracting power is stronger.In addition, electric power WiMAX LTE230 system adopts terminal transmission machine technology and highly sensitive receiver technology more efficiently, greatly improves system coverage capabilities, can realize high-quality wireless coverage on a large scale.The covering radius of electric power WiMAX LTE230 system in dense city can reach 3 kilometers, reaches 30 kilometers at the covering radius in open area.Electric power WiMAX LTE230 system ensures whole terminal real-time online in design, and shared resource, terminal is dynamic allocation of resources when there being transfer of data.Meanwhile, by reduced signaling flow process, reduce overhead, ensure system real-time support magnanimity terminal.The terminal of thousands of real-time onlines is supported in the every logic district of system.Because single base station holds the increase of terminal quantity, deployment and construction cost significantly reduce.

Electric power automation of distributive net communication has the less feature of amount of communication data of multiple spot, dispersion, every bit.For reducing investment, optimizing channel design, normally adopt a distribution substation to forward the data of the distribution terminal in a neighbouring region, distribution substation is generally arranged in electric substation, switching station.But fibre optic installations face to each node be not only long construction period, problem that cost of investment is large, for outlying district, lay separately optical fiber economic benefit more not obvious.And TD-LTE230 communication system only need install special wireless communication terminal at the equipment of distribution automation, the expanded functions such as basic function and electrical network analysis application such as distribution main website data acquisition and monitoring namely can be realized.

One of most important in power distribution network is exactly the reliability transmission ensureing power business, the network selection technique of current heterogeneous network is all carry out based under the basically identical condition of the select probability of each alternative network, and have ignored in current pair of LTE network technology, bandwidth resources, the transmittability of two net are not reciprocity, fail safe is not reciprocity, the not reciprocity problem of cost conditions, as, LTE common network is sufficient relative to the bandwidth resources of LTE power private network, can hold the transmission of large-data operation; LTE common network comprises the information transmission of multiple industry unit, and LTE power private network is deployed in 230MHz electric power specific authorisation frequency range, it has the feature such as high security, high efficiency, and certain cost overhead is wanted in the use of LTE common network, but LTE power private network is countryto the specific authorisation frequency range of electric power, without the cost overhead of Web vector graphic, if each alternative network that network is selected selects concept basically identical, then can not consider the feature of each alternative network, effectively can not utilize network, easily cause the waste of Internet resources.

Summary of the invention

Based on this, what be necessary provides the adapted electricity service data transmission method and device that effectively can utilize the dual network of Internet resources.

An adapted electricity service data transmission method for dual network, comprising:

Receive the adapted electricity business datum that electric power acquisition terminal sends;

According to the adapted electricity business datum received, the type of service that identification services data are corresponding also determines service priority and the transmission security property coefficient of type of service;

Weight is selected according to service priority and transmission security coefficient calculations network;

The network calculating adapted electricity business datum selects preliminary ruling value;

Preliminary ruling value and network right to choose re-computation network is selected to select decision value according to network;

Comparing cell selects the size of the threshold value of the correspondence of decision value and type of service;

First network or second network is selected according to comparative result;

By select network to master station transmission adapted electricity business datum.

An adapted electricity business data transmission device for dual network, comprises network and selects judging module and network to select control module,

Network selects judging module, comprising:

First receiving element, for receiving the adapted electricity business datum that electric power acquisition terminal sends;

Recognition unit, for according to the adapted electricity business datum received, the type of service that identification services data are corresponding also determines service priority and the transmission security property coefficient of type of service;

First computing unit, for selecting weight according to service priority and transmission security coefficient calculations network;

Second computing unit, selects preliminary ruling value for the network calculating adapted electricity business datum;

3rd computing unit, selects decision value for selecting preliminary ruling value and network right to choose re-computation network according to network;

Comparing unit, selects the size of the threshold value of the correspondence of decision value and type of service for comparing cell;

Selected cell, for the comparative result according to comparing unit, selects first network or second network; Network selects control module to comprise:

Transmission unit, for the network by selecting to master station transmission adapted electricity business datum.

The adapted electricity service data transmission method of this dual network, by setting different service priority and transmission security property coefficient to the type of service of distribution business datum, weight and network is selected to select preliminary ruling value computing network to select decision value in conjunction with network, according to service priority and the transmission security coefficient calculations network selection weight of the business of adapted electric industry.The service priority that the method makes adapted electric industry be engaged in and transmission security property coefficient become one of parameter affecting network selection, in the process that network is selected, select the comparative result of the threshold value of decision value and this type of service to select first network or second network to transmit according to network, therefore, the needs of different service types can be considered, select adaptive network to transmit according to the type of service of adapted electric industry business, thus reasonably arrange Internet resources, effectively utilize Internet resources.

Accompanying drawing explanation

fig. 1for a kind of flow process of adapted electricity service data transmission method of dual network of execution mode figure;

fig. 2for the part run of the adapted electricity service data transmission method of the dual network of another kind of execution mode figure;

fig. 3the flow process of the adapted electricity service data transmission method of another kind of execution mode dual network figure;

fig. 4for the model reference of power business reliability transmission agreement (PDRTP) figure;

fig. 5electric power acquisition terminal for power business reliability transmission agreement (PDRTP) sends the structure of protocol entity figure;

fig. 6for the structure of data center of the main website feedback protocols body of power business reliability transmission agreement (PDRTP) figure;

fig. 7for the interaction flow of power business reliability transmission agreement (PDRTP) figure;

fig. 8computing network for a kind of execution mode selects the flow process of preliminary ruling value figure;

fig. 9for a kind of module of device of adapted electricity service data transmission method of dual network of execution mode figure;

fig. 10 is the module of device of the adapted electricity service data transmission method of the dual network of another kind of execution mode figure.

Embodiment

as Fig. 1shown in, a kind of adapted electricity business data transmission of dual network, comprises the following steps:

S101: receive the adapted electricity business datum that electric power acquisition terminal sends.

Usually, the adapted electric industry that electric power acquisition terminal sends be engaged in the business that comprises with Types Below: monitor video, remote signalling, remote measurement, remote control, control command issue, electricity, continuous data, Monitoring Data and active event report.

S103: according to the adapted electricity business datum received, the type of service that identification services data are corresponding also determines service priority and the transmission security property coefficient of this type of service.

Each type of service presets different service priority and safety loading coefficient, and the priority of usual remote signalling, telemetry and telecommand business is the highest, and safety loading coefficient is the highest.

S105: select weight according to service priority and transmission security coefficient calculations network.

S107: the network calculating adapted electricity business datum selects preliminary ruling value.

Computing network selects preliminary ruling value that traditional network selection algorithm can be adopted to calculate.

Number of steps is also not used in the execution sequence limiting step, and in the present embodiment, the sequencing of step S105 and step S107 does not limit.

S109: select preliminary ruling value and network right to choose re-computation network to select decision value according to network.Network selects the calculating of decision value, can on the basis that the network adopting conventional method to calculate selects preliminary ruling value, in conjunction with according to the service priority of this type of service and the weight of transmission security coefficient calculations, thus the service priority that adapted electric industry is engaged in and transmission security property coefficient become and affect one of parameter that network selects.

S111: comparing cell selects the size of the threshold value of the correspondence of decision value and type of service.

S113: select first network or second network according to comparative result.

S115: by select network to master station transmission adapted electricity business datum.

The adapted electricity service data transmission method of above-mentioned dual network, by setting different service priority and transmission security property coefficient to the type of service of distribution business datum, weight and network is selected to select preliminary ruling value computing network to select decision value in conjunction with network, according to service priority and the transmission security coefficient calculations network selection weight of the business of adapted electric industry.The service priority that the method makes adapted electric industry be engaged in and transmission security property coefficient become one of parameter affecting network selection, in the process that network is selected, select the comparative result of the threshold value of decision value and this type of service to select first network or second network to transmit according to network, therefore, the needs of different service types can be considered, select adaptive network to transmit according to the type of service of adapted electric industry business, thus reasonably arrange Internet resources, effectively utilize Internet resources.

In a particular embodiment, use TD-LTE common network and TD-LTE power private network to master station transmission adapted electricity business datum, TD-LTE power private network is equivalent to first network, TD-LTE common network is equivalent to second network, and business that safety loading coefficient high high for priority, the preferential TD-LTE power private network that uses is transmitted.If network selects decision value to be less than the threshold value of type of service, then select TD-LTE power private network; If network selects decision value to be greater than the threshold value of type of service, then select TD-LTE common network.

as Fig. 2shown in, S113 specifically comprises:

If comparative result is: network selects decision value to be less than the threshold value of type of service, then perform S1131: select first network, i.e. TD-LTE power private network;

If comparative result is: network selects decision value to be greater than the threshold value of type of service, then perform S1132: choice for use second network, i.e. TD-LTE common network.

In another embodiment, as Fig. 3shown in, comprise step S114 before step S115: by adapted electric industry business data Replica buffer memory.

Also step is comprised after step S113:

S116: the feedback information receiving main website.Feedback information comprise send successfully and send unsuccessful.

If the feedback information received is for send successfully, then perform step S117: delete the data cached of this adapted electricity business datum.

If the feedback information received is unsuccessful for sending, then performing step S118: resend by the copy data of buffer memory, sending successful feedback information until receive, thus guaranteeing that adapted business datum successfully sends.

The adapted electric industry business data acquisition host-host protocol that electric power acquisition terminal sends encapsulates, and according to the information of the adapted electric industry business data identification business datum received, as type of service etc., identifies based on this agreement.In a concrete execution mode, concrete, adopt power business reliability transmission agreement (PDRTP) to encapsulate, this agreement is based on the application layer protocol in ICP/IP protocol, and its reference model is shown in fig. 4shown in.

This agreement comprises electric power acquisition terminal and sends protocol entity and data center of main website feedback protocols body.

as table 1shown in, the protocol header in power business reliability transmission agreement comprises: version number, signaling type and Signalling length.

table 1protocol header structure in PDRTP

8bit	8bit	16bit
			Version number	Signaling type	Signalling length

Wherein version number is used for uniquely determining release protocol.Signaling type is used for specifying that this command functions, version confirm solicited message and response, network check request and response, data sending request and response etc., concrete as table 2shown in.

table 2message name and Messagetype value

Message name	MessageType value	Explanation
			verAffirm_Req	0x0001	Version confirms request
verAffirm_Resp	0x1001	Version confirms response
			dataSend_Req	0x0010	Data sending request
dataSend_Resp	0x1010	Data send response
			sendStatus_Req	0x0011	Send status request
sendStatus_Resp	0x1011	Transmission state is replied

as table 3shown in and fig. 5shown in, electric power acquisition terminal sends protocol entity structure and comprises: electric power acquisition terminal number, type of service, default network are selected, service priority, safety loading coefficient and business sequence number.

table 3the protocol entity structure that electric power acquisition terminal sends

8bit	6bit	1bit	4bit	7bit	6bit
						User terminal is numbered	Type of service	Default network position	Service priority	Safety loading coefficient	Business sequence number

wherein, electric power acquisition terminal number is used for the electric power acquisition terminal uniquely determining in this region, and most multipotency determines 256 electric power acquisition terminals, meets the requirement of local area power planning; Type of service is used for uniquely determining the ownership kind of this power business; Service priority is QCI value corresponding to this business, and the lower then priority of numerical value is higher; Default network is selected: be according to type of service, and the default network of setting is selected, and usual video class business default network is LTE common network, non-video class business default transport network is the transmission of power private network 230M frequency band network, wherein 1 represents power private network, and 0 represents LTE common network as table 4shown in.

table 4default network identification implication

Default network is selected	1	0
			Mark implication	TD-LTE power private network	TD-LTE common network

as table 5shown in, safety loading coefficient is the security requirement index of this business transmission, and its span is [0,100], and safety loading coefficient value is larger, represents that the security requirement that this business is transmitted is higher, and the transmission priority that namely this business is corresponding is also higher.

table 5the corresponding priority QCI of business and safety loading coefficient

Business categorizing	Service priority (QCI)	Safety loading coefficient
			Remote signalling	3	70
Remote measurement	3	70
			Remote control	3	70
Electricity	4	65
			Control command issues	6	60
Active event reports	6	60
			Continuous data	7	60
Monitoring Data	8	60
			Monitoring video	9	0

Business sequence number is used for uniquely determining this power business.

as table 6shown in and fig. 6shown in, data center of main website feedback protocols body structure comprises: electric power acquisition terminal number, type of service, Success Flag position, mistakestate, re-send request may and business sequence number.

table 6data center of main website feedback protocols body structure

8bit	6bit	1bit	7bit	4bit	6bit
						User terminal is numbered	Type of service	Success Flag position	MistakeState	Re-send request may	Business sequence number

Electric power acquisition terminal number, type of service, business sequence number send the consistent of protocol entity with electric power acquisition terminal; Success Flag position is used for feeding back data center of main website and whether accurately receives this information, and 1 is successfully; mistakestate: be successfully all arrange 0, receive information if unsuccessful, then feed back mistakestate; Re-send request may: if send unsuccessful, return mistakealso re-send request may will be sent while state.

This agreement specific works flow process refers to fig. 7:

After setting up TCP connection, electric power acquisition terminal sends version and confirms request, obtains the response of data center of main website, confirms as between same version or version and there is compatibility relation, can ensure that its protocol results is consistent, then carry out next step and order;

Send data sending request after completing network judgement, after obtaining main website response, send data by court verdict; And send the transmission status request of these data, obtain the transmission feedback of main website;

According to feedback result, if success, then this vocational work terminates, if failure, after receiving re-send request may, then needs to find corresponding data buffer memory, resends this data, till success.

In a concrete execution mode, by obtaining the default network of type of service, transmission security property coefficient, service priority and the type business in the message information of PDRTP agreement, as table 7shown in,

table 7power business classification and type of service mark

Type of service is read from PDRTP protocol message, service priority corresponding to this type of service of presetting and transmission security property coefficient is obtained according to the type of service identified, select weight according to service priority and transmission security coefficient calculations network, computing formula is as follows:

$p=ln\left(\frac{Q\×S}{K}\right)$

Wherein Q is service priority, the QCI value that namely this business is corresponding; S is transmission security property coefficient.Safety loading coefficient is higher, and represent that the demand of service security transmission is higher, its span is [0,100]; K is constant, is set to 100 here.The network that can calculate this business with this formula selects weight.Network weight is less, and represent that its service priority higher grade, safety loading coefficient is also higher, transmission also more preferential LTE power private network.

table 8the network weight that each business draws according to service priority transfer algorithm

Above numerical value is according in power private network network error tolerance interval, under the prerequisite not affecting information transmission success rate, considers the factor such as service priority and safe transmission requirement and sets.

In another embodiment, as Fig. 8shown in, the network that step S107 calculates adapted electricity business datum selects the step of preliminary ruling value to comprise:

S1071: the property value obtaining each attribute of first network and second network respectively.

S1072: use AHP algorithm and comentropy unified algorithm to calculate the weight of each attribute;

S1073: use SAW algorithm, the network calculating adapted electricity business datum according to the property value of each attribute of the weight of each attribute, first network and second network selects preliminary ruling value.

Network select permeability is multiattribute judgement (MADM) problem, and network selects preliminary ruling value to utilize the SAW algorithm of extensive use the most in multiple attribute decision making (MADM) algorithm as judgement expression formula, that is:

$A_{SAW}={\mathrm{argmax}}_{i\∈M}\left({\mathrm{\Σ}}_{j=1}^N{w}_j{x}_{ij}\right)$ Formula (1)

Wherein, x _ijrepresent a jth reference property value of i-th alternative network, w _ifor the weighted value of j attribute, N is the number with reference to attribute, and M is the number of candidate network, and namely this formula represents the network A selecting weighted sum maximum _sAWfor handover network.

In present embodiment, three the Network attributes selected comprise: time delay, packet loss, residue of network organization capacity.Therefore the decision model of t is table 9shown in:

table 9multiattribute judgement makes policy model

In order to calculated threshold, so by the maximin normalized of each for each business attribute, full increment type will be become, so be normalized property value by the maximin method of enhancement mode, namely

Wherein, x _ijrepresent a jth property value of i-th network, v _ijrepresent x _ijnormalized value.

The obtain manner of attribute as table 1shown in 0:

table 1the acquisition of 0 property value

Its process as table 1shown in 1:

table 1the numerical value of 1 each service attribute value in bus X=5 (X is that transformer station goes out number of lines) situation

Transformer station's outlet can meet the distribution demand of about 1000 users.The numerical approximation of every business as following table instituteshow: wherein, X is that transformer station goes out number of lines, and the unit of all every business minimum-rates is kbps.

table 1the service rate that 2 different X values are corresponding different

And the weight w in formula 1 _jreally rule uses AHP algorithm and comentropy unified algorithm to draw, the method not only consider with the subjective judgement of people for according to but also combine the condition of network itself, so have certain objectivity.

in following tableu _ibe the weights that the AHP of I attribute solves.

The step of AHP algorithm is as follows:

Definition judgment matrix A=(a _ij) _{n × n}, then this matrix has following character:

$\left\{\begin{array}{c}{a}_{\mathrm{ij}}>0\\ a_{ij}=1/a_{\mathrm{ji}}\\ a_{ii}=1\end{array}\right.$

table 1the definition of 3 dimensions

The weight of computation attribute parameter

$\stackrel{\‾}{W_{\mathrm{\ι}}}=\sqrt[n]{W_i}$

Finally to vector $W=(\stackrel{\‾}{W_1},\stackrel{\‾}{W_2},...,\stackrel{\‾}{W_n},)$ Be normalized,

$u_i=\frac{\stackrel{\‾}{W_{\mathrm{\ι}}}}{{\mathrm{\Σ}}_{i=1}^n\stackrel{\‾}{W_{\mathrm{\ι}}}}$

Wherein, u _irepresent the weight of i-th attribute, and meet

in following tableα embodies people's subjectivity and thinks the importance proportion of each property value, considers artificial subjective idea here, be set to 0.7 substitution and calculate one group of weights in order to upper method so main.

Because reliability transmission requirement, high spot reviews packet loss attribute, so it is the highest relative to the priority level of other attributes.Residue of network organization capacity, time delay are taken second place, so the final weights ω obtained according to AHP algorithm and information Entropy Method _i as table 1shown in 4.

table 1the deterministic process of 4 weights

The decision threshold that the maximum of bringing each service attribute in order to upper traditional algorithm obtains each business is real-time network selects preliminary ruling value to be A _sAW.

Formula according to network selection preliminary ruling value and network right to choose re-computation network selection decision value A is:

A=A _sAW× p formula (2)

Computing network is selected the threshold value that decision value A and this type of service are corresponding compare, if then first network, i.e. TD-LTE power private network are selected in judgement, otherwise then select second network, i.e. TD-LTE common network.

This computing network selects preliminary ruling value, not only consider with the subjective judgement of people for according to but also combine the condition of network itself, so have certain objectivity.

The adapted electricity service data transmission method of the dual network of the application, by according to the condition of network own, in conjunction with service priority and the transmission security coefficient calculations network selection decision value of the type of service of adapted electric industry business, select the comparative result of the threshold value of decision value and this type of service to select first network or second network to transmit according to network, therefore, not only combine the condition of network itself, the needs of different service types can also be considered, transmit according to the type of service of adapted electric industry business and the network of network condition selection adaptation, thus reasonably arrange Internet resources, effectively utilize Internet resources.

Based on identical inventive concept, the present invention also provides a kind of adapted electricity business data transmission device of dual network, as Fig. 9shown in comprise: network selects judging module 100 and network to select control module 200,

Network selects judging module 100, comprising:

First receiving element 101, for receiving the adapted electricity business datum that electric power acquisition terminal sends.

Usually, the adapted electric industry that electric power acquisition terminal sends be engaged in the business that comprises with Types Below: monitor video, remote signalling, remote measurement, remote control, control command issue, electricity, continuous data, Monitoring Data and active event report.

Recognition unit 102, for according to the adapted electricity business datum received, the type of service that identification services data are corresponding also determines service priority and the transmission security property coefficient of this type of service.

Each type of service presets different service priority and safety loading coefficient, and the priority of usual remote signalling, telemetry and telecommand business is the highest, and safety loading coefficient is the highest.

First computing unit 103, for selecting weight according to service priority and transmission security coefficient calculations network.

Second computing unit 104, selects preliminary ruling value for the network calculating adapted electricity business datum.

Computing network selects preliminary ruling value that traditional network selection algorithm can be adopted to calculate.

3rd computing unit 105, selects decision value for selecting preliminary ruling value and network right to choose re-computation network according to network.

Network selects the calculating of decision value, can on the basis that the network adopting conventional method to calculate selects preliminary ruling value, in conjunction with according to the service priority of this type of service and the weight of transmission security coefficient calculations, thus the service priority that adapted electric industry is engaged in and transmission security property coefficient become and affect one of parameter that network selects.

Comparing unit 106, selects the size of the threshold value of the correspondence of decision value and type of service for comparing cell.

Selected cell 107, for the comparative result according to comparing unit 106, selects first network or second network.

Network selects control module to comprise:

Transmission unit 201, for the network by selecting to master station transmission adapted electricity business datum.

The adapted electricity business data transmission device of above-mentioned dual network, by setting different service priority and transmission security property coefficient to the type of service of distribution business datum, weight and network is selected to select preliminary ruling value computing network to select decision value in conjunction with network, according to service priority and the transmission security coefficient calculations network selection weight of the business of adapted electric industry.The service priority that the method makes adapted electric industry be engaged in and transmission security property coefficient become one of parameter affecting network selection, in the process that network is selected, select the comparative result of the threshold value of decision value and this type of service to select first network or second network to transmit according to network, therefore, the needs of different service types can be considered, select adaptive network to transmit according to the type of service of adapted electric industry business, thus reasonably arrange Internet resources, effectively utilize Internet resources.

In a particular embodiment, use TD-LTE common network and TD-LTE power private network to master station transmission adapted electricity business datum, TD-LTE power private network is equivalent to first network, TD-LTE common network is equivalent to second network, and business that safety loading coefficient high high for priority, the preferential TD-LTE power private network that uses is transmitted.Selected cell 107, specifically at the comparative result comparing 106 be network select decision value be less than the threshold value of type of service time, select first network, i.e. TD-LTE power private network; Also at the comparative result of comparing unit be network select decision value be greater than the threshold value of type of service time, select second network, i.e. TD-LTE common network.

In another embodiment, as Fig. 1shown in 0, network selects control module 200 specifically also to comprise:

Transport service cache pool 202, for data Replica buffer memory of being engaged in by adapted electric industry;

Second receiving element 203, for receiving the feedback information of main website; Feedback information comprise send successfully and send unsuccessful.

Transport service cache pool 202, also for when the feedback information of the second receiving element 203 reception is for sending successfully, deletes the data cached of this adapted electricity business datum.

The feedback information of transmission unit 201 also for receiving at the second receiving element is unsuccessful for sending, and is resend by the copy data of the adapted electric industry business in transport service cache pool 202, thus guarantees that adapted business datum successfully sends.

Adapted electric industry business data acquisition electric power service reliability host-host protocol (PDRTP) that electric power acquisition terminal sends encapsulates, about content and the side of power business reliability transmission agreement (PDRTP) method portiondivide identical, do not repeat them here.

Concrete, the formula of the first computing unit 103 computing network selection weight is:

$p=ln\left(\frac{Q\×S}{K}\right)$

Wherein Q is service priority, the QCI value that namely this business is corresponding; S is transmission security property coefficient.Safety loading coefficient is higher, and represent that the demand of service security transmission is higher, its span is [0,100]; K is constant, is set to 100 here.The network that can calculate this business with this formula selects weight.Network weight is less, and represent that its service priority higher grade, safety loading coefficient is also higher, transmission also more preferential LTE power private network.

Second computing unit 104 in another embodiment, specifically for obtaining the property value of each attribute of first network and second network respectively; AHP algorithm and comentropy unified algorithm is used to calculate the weight of each attribute; Use SAW algorithm, the network calculating adapted electricity business datum according to the property value of the weight of each attribute, first network and each attribute of second network selects preliminary ruling value.

Network select permeability is multiattribute judgement (MADM) problem, and the second computing unit 104 computing network selects preliminary ruling value to utilize the SAW algorithm of extensive use the most in multiple attribute decision making (MADM) algorithm as judgement expression formula, that is:

$A_{SAW}=\arg \underset{i\∈M}{max}\left({\mathrm{\Σ}}_{j=1}^N{w}_j{x}_{ij}\right)$

Wherein, A _sAWfor network selects preliminary ruling value, x _ijrepresent a jth reference property value of i-th alternative network, w _jfor the weighted value of j attribute, N is the number with reference to attribute, and M is the number of candidate network, and namely this formula represents the network A selecting weighted sum maximum _sAWfor handover network.

In present embodiment, three the Network attributes selected comprise: time delay, packet loss, residue of network organization capacity (service transmission rate).Therefore the decision model of t is table 9shown in.

In order to calculated threshold, so by the maximin normalized of each for each business attribute, full increment type will be become, so be normalized property value by the maximin method of enhancement mode, namely

Wherein, x _ijrepresent a jth property value of i-th network, v _ijrepresent x _ijnormalized value.

The obtain manner of attribute as table 1shown in 0, its process as table 1shown in 1.

Transformer station's outlet can meet the distribution demand of about 1000 users.The numerical approximation of every business as following table instituteshow: wherein, X is that transformer station goes out number of lines, and the unit of all every business minimum-rates is kbps.

And the weight w in formula 1 _jreally rule uses AHP algorithm and comentropy unified algorithm to draw, the method not only consider with the subjective judgement of people for according to but also combine the condition of network itself, so have certain objectivity.

in following tableu _ibe the weights that the AHP of I attribute solves.

The step of AHP algorithm is as follows:

Definition judgment matrix A=(a _ij) _{n × n}, then this matrix has following character:

$\left\{\begin{array}{c}{a}_{\mathrm{ij}}>0\\ a_{ij}=1/a_{\mathrm{ji}}\\ a_{ii}=1\end{array}\right.$

The weight of computation attribute parameter

$\stackrel{\‾}{W_{\mathrm{\ι}}}=\sqrt[n]{W_i}$

Finally to vector $W=(\stackrel{\‾}{W_1},\stackrel{\‾}{W_2},...,\stackrel{\‾}{W_n},)$ Be normalized,

$u_i=\frac{\stackrel{\‾}{W_{\mathrm{\ι}}}}{{\mathrm{\Σ}}_{i=1}^n\stackrel{\‾}{W_{\mathrm{\ι}}}}$

Wherein, u _irepresent the weighted value of i-th attribute.And meet

in following tableα embodies people's subjectivity and thinks the importance proportion of each property value, considers artificial subjective idea here, be set to 0.7 substitution and calculate one group of weights in order to upper method so main.

Because reliability transmission requirement, high spot reviews packet loss attribute, so it is the highest relative to the priority level of other attributes.Residue of network organization capacity, time delay are taken second place, so the final weights ω obtained according to AHP algorithm and information Entropy Method _i upper table 1shown in 4.

The decision threshold that the maximum of bringing each service attribute in order to upper algorithm obtains each business is real-time network selects preliminary ruling value to be A _sAW.

The formula of the 3rd computing unit 105 computing network selection decision value A is:

A=A _sAW× p; (formula 2)

Wherein, A is that network selects decision value.

Computing network is selected the threshold value that decision value A and this type of service are corresponding compare, if then first network is selected in judgement, otherwise namely TD-LTE power private network then selects second network, i.e. TD-LTE common network.

This computing network selects preliminary ruling value, not only consider with the subjective judgement of people for according to but also combine the condition of network itself, so have certain objectivity.

The adapted electricity business data transmission device of the dual network of the application, by according to the condition of network own, in conjunction with service priority and the transmission security coefficient calculations network selection decision value of the type of service of adapted electric industry business, select the comparative result of the threshold value of decision value and this type of service to select first network or second network to transmit according to network, therefore, not only combine the condition of network itself, the needs of different service types can also be considered, transmit according to the type of service of adapted electric industry business and the network of network condition selection adaptation, thus reasonably arrange Internet resources, effectively utilize Internet resources.

Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be this explanation secretarythe scope of carrying.

The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.

Claims (10)

1. an adapted electricity service data transmission method for dual network, comprising:

Receive the adapted electricity business datum that electric power acquisition terminal sends;

According to the described adapted electricity business datum received, the type of service that identification services data are corresponding also determines service priority and the transmission security property coefficient of described type of service;

Weight is selected according to described service priority and transmission security coefficient calculations network;

The network calculating described adapted electricity business datum selects preliminary ruling value;

Preliminary ruling value and network right to choose re-computation network is selected to select decision value according to described network;

More described network selects the size of the threshold value of the correspondence of decision value and described type of service;

First network or second network is selected according to comparative result;

By select network to described in master station transmission adapted electricity business datum.

2. the adapted electricity service data transmission method of dual network according to claim 1, it is characterized in that, described first network is TD-LTE power private network, described second network is TD-LTE common network, the described step according to comparative result selection first network or second network is: if described network selects decision value to be less than the threshold value of described type of service, then select TD-LTE power private network; If described network selects decision value to be greater than the threshold value of described type of service, then select TD-LTE common network.

3. dual network according to claim 1 adapted electricity service data transmission method, it is characterized in that, described by select network to described in master station transmission adapted electricity business datum step before also comprise:

By described adapted electric industry business data Replica buffer memory;

Described by select network to described in master station transmission adapted electricity business datum step after also comprise:

Receive the feedback information of main website; Described feedback information comprise send successfully and send unsuccessful;

If described feedback information is unsuccessful for sending, then the copy data of buffer memory is resend until receive the successful feedback information of transmission.

4. the adapted electricity service data transmission method of dual network according to claim 3, is characterized in that, if described feedback information is for send successfully, then deletes the data cached of described adapted electricity business datum.

5. the adapted electricity service data transmission method of dual network according to claim 1, is characterized in that, the formula calculating described network selection weight is:

$p=ln\left(\frac{Q\×S}{K}\right);$

Wherein, p is that network selects weight, and Q is service priority, and S is transmission security property coefficient, and K is constant.

6. the adapted electricity service data transmission method of dual network according to claim 1, is characterized in that, the network of described calculating described adapted electricity business datum selects the step of preliminary ruling value to comprise:

Obtain the property value of each attribute of first network and second network respectively;

AHP algorithm and comentropy unified algorithm is used to calculate the weight of each attribute;

Use SAW algorithm, the network calculating adapted electricity business datum according to the property value of each attribute of the weight of each attribute, first network and second network selects preliminary ruling value.

7. the adapted electricity service data transmission method of dual network according to claim 6, it is characterized in that, described attribute comprises: time delay, residue of network organization capacity and packet loss,

The formula calculating the network selection preliminary ruling value of described adapted electricity business datum is:

$A_{SAW}=\arg \underset{i\∈M}{max}\left({\mathrm{\Σ}}_{j=1}^N{w}_j{x}_{ij}\right)$

Wherein, A _sAWfor network selects preliminary ruling value, x _ijrepresent a jth reference property value of i-th alternative network, w _jfor the weight of j attribute, N is the number with reference to attribute, and M is the number of candidate network;

The formula calculating described network selection decision value is:

A＝A _SAW×p；

Wherein, A is that network selects decision value.

8. an adapted electricity business data transmission device for dual network, comprises network and selects judging module and network to select control module,

Described network selects judging module, comprising:

First receiving element, for receiving the adapted electricity business datum that electric power acquisition terminal sends;

Recognition unit, for according to the described adapted electricity business datum received, the type of service that identification services data are corresponding also determines service priority and the transmission security property coefficient of described type of service;

First computing unit, for selecting weight according to described service priority and transmission security coefficient calculations network;

Second computing unit, selects preliminary ruling value for the network calculating described adapted electricity business datum;

3rd computing unit, selects decision value for selecting preliminary ruling value and network right to choose re-computation network according to described network;

Comparing unit, selects the size of the threshold value of the correspondence of decision value and described type of service for more described network;

Selected cell, for the comparative result according to described comparing unit, selects first network or second network; Described network selects control module to comprise:

Transmission unit, for the network by selecting to adapted electricity business datum described in master station transmission.

9. the adapted electricity business data transmission device of dual network according to claim 8, it is characterized in that, described network selects control module also to comprise:

Transport service cache pool, for data Replica buffer memory of being engaged in by described adapted electric industry;

Second receiving element, for receiving the feedback information of main website; Described feedback information comprise send successfully and send unsuccessful;

Described transmission unit, the feedback information also for receiving at described second receiving element is when sending unsuccessful, is resend by the copy data of the described adapted electric industry business in described transport service cache pool.

10. the adapted electricity business data transmission device of dual network according to claim 8, it is characterized in that, described transport service cache pool, also for when the feedback information of described second receiving element reception is for sending successfully, deletes the data cached of described adapted electricity business datum.