CN107889183A - Data transmission method and device - Google Patents
Data transmission method and device Download PDFInfo
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- CN107889183A CN107889183A CN201711027335.2A CN201711027335A CN107889183A CN 107889183 A CN107889183 A CN 107889183A CN 201711027335 A CN201711027335 A CN 201711027335A CN 107889183 A CN107889183 A CN 107889183A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
- H04W40/14—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality based on stability
Abstract
The embodiment of the present invention provides a kind of data transmission method and device.This method includes：The request that source node transmits data to destination node is responded, travels through the source node to all paths between the destination node；The path data per paths is obtained, wherein, the path data includes the field intensity value and traffic rate value between the via node number, adjacent node；According to the corresponding relation between the path data of every paths and default field intensity value, traffic rate value and stable weights, the stable weights per paths are calculated；According to the path data of every paths and the stable weights of the every paths calculated, the path for meeting preparatory condition is chosen as the destination path between the source node and the destination node, to transmit data based on the destination path.The present invention transmits data by choosing transmission stability highest destination path from more transmission paths, so as to significant increase transmission success rate, ensure that the reliability of data transfer.
Description
Technical field
The present invention relates to communication technical field, in particular to a kind of data transmission method and device.
Background technology
Current power information acquisition system mostly using the communication mode of RS485 buses and power line carrier, but due to
The installation and debugging of RS485 bus communication modes are complicated, are subject to artificial destruction.And power line carrier mode exist signal attenuation it is big,
Noise source is more and interference is strong and is influenceed the problems such as big by load characteristic, and certain technology barrier is formed to the reliability of communication.
The appearance of micropower wireless communication technology overcomes deficiency of the above-mentioned communication mode in some application scenarios, construction party
Just, it is not necessary to cable is additionally laid, general worker can easily be installed, and communicated and be not only restricted to power network characteristic,
Can be easily to across taiwan area, complicated power utilization environment Rapid Implementation meter reading scheme.But in data transmission system, a host node
Thousands of up to a hundred other nodes may be accessed, when source node transmits data to destination node, often there are more transmission paths.
And for every transmission paths, if transmitting unstable between certain two node, overall transmission success rate can be caused low.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, it is an object of the invention to provide a kind of data transmission method and dress
Put, data transmitted by choosing transmission stability highest destination path from more transmission paths, significant increase transmission into
Power.
To achieve these goals, the technical scheme that present pre-ferred embodiments use is as follows：
Present pre-ferred embodiments provide a kind of data transmission method, applied to data transmission network, the data transfer
Network includes multiple via nodes between source node, destination node and the source node and the destination node, the side
Method includes：
The request that source node transmits data to destination node is responded, travels through the source node between the destination node
All paths；
The path data per paths is obtained, wherein, the path data includes the via node number, adjacent section
Field intensity value and traffic rate value between point；
According to corresponding between the path data of every paths and default field intensity value, traffic rate value and stable weights
Relation, calculate the stable weights per paths；
According to the path data of every paths and the stable weights of the every paths calculated, selection meets preparatory condition
Path is as the destination path between the source node and the destination node, to transmit data based on the destination path.
In present pre-ferred embodiments, path data and default field intensity value, communication of the basis per paths
Corresponding relation between rate value and stable weights, the stable weights per paths are calculated, including：
According to the field intensity value between node adjacent in every paths and traffic rate value calculate each adjacent node it
Between path stable weights；
Based on the stable weights in the path between each adjacent node, the road between each adjacent node is obtained
The stable weights for every paths that the stable weights in footpath are formed.
In present pre-ferred embodiments, path data and the every paths that calculate of the basis per paths it is steady
Determine weights, choose the path for meeting preparatory condition as the destination path between the source node and the destination node, including：
Judge to weigh less than pre-determined stability with the presence or absence of the stable weights for having the path between adjacent node in all paths
The path of value；
If in the presence of there will be the path that the stable weights in the path having between adjacent node are less than pre-determined stability weights
Abandon, the destination path is chosen from remaining path.
It is described to choose the destination path from remaining path in present pre-ferred embodiments, including：
Remaining path is ranked up based on weights are stablized, obtains ranking results；
The stable path of weights highest at least one is obtained from the ranking results；
Chosen from the stable path of weights highest at least one described in the minimum path conduct of via node number
Destination path.
It is described to judge in all paths with the presence or absence of the path having between adjacent node in present pre-ferred embodiments
Stable weights be less than pre-determined stability weights path after, methods described also includes：
If all paths all there are the road of the stable weights less than pre-determined stability weights in the path between adjacent node
Footpath, then obtain the stable path of weights highest at least one；
Chosen from the stable path of weights highest at least one described in the minimum path conduct of via node number
Destination path.
Present pre-ferred embodiments also provide a kind of data transmission device, and applied to data transmission network, the data pass
Defeated network includes multiple via nodes between source node, destination node and the source node and the destination node, described
Device includes：
Spider module, for responding request of the source node to destination node transmission data, the source node is traveled through described in
All paths between destination node；
Acquisition module, for obtaining the path data of every paths, wherein, the path data includes the via node
Field intensity value and traffic rate value between number, adjacent node；
Computing module, for according to per paths path data and default field intensity value, traffic rate value with stably
Corresponding relation between weights, calculate the stable weights per paths；
Module is chosen, for the stable weights according to the path data per paths and the every paths calculated, is chosen
Meet the path of preparatory condition as the destination path between the source node and the destination node, with based on the target road
Transmit data in footpath.
In terms of existing technologies, the invention has the advantages that：
The embodiment of the present invention provides a kind of data transmission method and device, when source node transmits data to destination node,
By traveling through source node to all paths between destination node, the path data per paths is then obtained, further according to every
Corresponding relation between the path data in path and default field intensity value, traffic rate value and stable weights, calculates every road
The stable weights in footpath, and according to the path data of every paths and the stable weights of the every paths calculated, choose and meet in advance
If the path of condition is as the destination path between the source node and the destination node, to be transmitted based on the destination path
Data.Thereby, it is possible to choose transmission stability highest destination path transmission data from more transmission paths, so as to greatly carry
Transmission success rate has been risen, ensure that the reliability of data transfer.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of schematic flow sheet for the data transmission method that present pre-ferred embodiments provide；
Fig. 2 is default corresponding between the field intensity value, traffic rate value and stable weights of present pre-ferred embodiments offer
Graph of a relation；
Fig. 3 is a kind of functional block diagram for the data transmission device that present pre-ferred embodiments provide；
Fig. 4 is a kind of structural schematic block diagram for the communication equipment that present pre-ferred embodiments provide.
Icon：100- communication equipments；110- buses；120- processors；130- storage mediums；140- EBIs；150-
Network adapter；160- user interfaces；200- data transmission devices；210- spider modules；220- acquisition modules；230- calculates mould
Block；240- chooses module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Generally herein
The component of the embodiment of the present invention described and illustrated in place's accompanying drawing can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area
All other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.Meanwhile the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
For micropower wireless self-organization network, the data transmission system can wrap the data transmission system that the present embodiment uses
Two kinds of communication equipments are included, one kind is Centroid (can be arranged in concentrator), and another kind is that child node (can be arranged on electric energy meter
Or in collector).Data can be forwarded between each child node with interactive communication between Centroid and child node.Micro- work(
Rate wireless self-organization network can form Star Network, tree network or MESH mesh networks, and the specific framework of network can be by
Centroid determines, no matter the topological structure of which kind of network, child node adapts to.
A kind of referring to Fig. 1, schematic flow sheet of the data transmission method provided for present pre-ferred embodiments.It should say
Bright, data transmission method provided in an embodiment of the present invention is not using Fig. 1 and particular order as described below as limitation.The side
The idiographic flow of method is as follows：
Step S210, response source node transmit the request of data to destination node, travel through the source node to the target
All paths between node.
In the present embodiment, the source node and the destination node are respectively the transmission starting point during actual data transfer
With transmission terminal, alternatively, the source node can be the Centroid of micropower wireless self-organization network, the destination node
It can be some child node of micropower wireless self-organization network.Certainly, in other embodiments, the source node can also
It is some child node in micropower wireless self-organization network, the destination node can also be micropower wireless self-organization network
In another child node, the present embodiment is not especially limited to this.
In the present embodiment, multiple via nodes are included between the source node and the destination node, specifically, each
The via node is located at corresponding relay layer, and each relay layer includes multiple via nodes.
If the source node will transmit data to the destination node, can be via multiple relay layers, due to each relaying
Layer includes multiple via nodes, thus the source node also just have during data are transmitted to the destination node it is a plurality of
Path.For example, the source node is A, the destination node is D, and the source node A between the destination node in there are
After node B and via node C, then path can has A-B-C-D, either A-C-D or A-B-D.
Step S220, obtain the path data per paths.
In the present embodiment, the path data includes the field intensity value and communication between via node number, adjacent node
Rate value.Alternatively, the field intensity value between adjacent node and traffic rate value can be stored in advance, in order to need
When can be directly obtained.
Step S230, according to the path data of every paths and default field intensity value, traffic rate value and stablize weights
Between corresponding relation, calculate per paths stable weights.
Specifically, in the present embodiment, first according to the field intensity value and traffic rate between node adjacent in every paths
Value calculates the stable weights in the path between each adjacent node, the path being then based between each adjacent node
Stable weights, obtain the stable weights for every paths that the stable weights in path between each adjacent node are formed.
As a kind of non-limiting embodiment, between the default field intensity value, traffic rate value and stable weights
Corresponding relation is as shown in Fig. 2 according to the field intensity value and traffic rate value between two adjacent nodes, you can to obtain each phase
The stable weights in the path between adjacent node, the stable weights can be divided into 7 grades.Wherein, according to different size of
Field intensity value, corresponding field strength quantized value can be quantified as, for example, shown in Fig. 2, according to the size of field intensity value, the field strength quantized value
15 respective values, after the field intensity value between getting node adjacent in every paths, field strength corresponding to acquisition can be divided into
Quantized value, then further according to the field strength quantized value and traffic rate, calculated based on the corresponding relation can shown in Fig. 2 every
The stable weights in the path between individual adjacent node.For example, if field intensity value between node adjacent in certain paths is 74,
Speed is 50K, then its field strength quantized value is then 14, therefore corresponding stationary value is then 6.Then every paths are being calculated
In path between each adjacent node stable weights after, the steady of path between each adjacent node can be obtained
Determine the stable weights of every paths of weights composition.Optionally, the stable weights per paths can be wherein each
Path between the additive value of the stable weights in the path between adjacent node or wherein each adjacent node
Stablize the weighted value of weights, this is not limited in detail in the present embodiment.
It should be appreciated that the corresponding relation shown in Fig. 2 is merely illustrative, the limitation to the present embodiment is should not be construed as,
Those skilled in the art can set field strength quantized value and the numerical value of stationary value in above-mentioned corresponding relation according to the actual requirements, and
Corresponding relation before the field strength quantized value, traffic rate and stationary value.
Step S240, according to the path data of every paths and the stable weights of the every paths calculated, choose and meet
The path of preparatory condition is as the destination path between the source node and the destination node, to be passed based on the destination path
Transmission of data.
In the present embodiment, first determine whether in all paths with the presence or absence of the stable power in the path having between adjacent node
Value is less than the path of pre-determined stability weights, if in the presence of there will be the stable weights in the path having between adjacent node to be less than
The path of pre-determined stability weights is abandoned, and the destination path is then chosen from remaining path.Specifically, it is primarily based on stabilization
Weights are ranked up to remaining path, obtain ranking results, and stable weights highest is then obtained from the ranking results
At least one path, and choose the minimum path of via node number from the stable path of weights highest at least one and make
For the destination path.It will of course be understood that, if stable weights highest only has a paths, directly the path is made
For the destination path.
In addition, if the stable weights that all paths all there are the path between adjacent node are less than pre-determined stability weights
Path, then the stable path of weights highest at least one is obtained, then from the stable path of weights highest at least one
The middle minimum path of via node number of choosing is as the destination path.It will of course be understood that, if stable weights highest
An only paths, then directly using the path as the destination path.
Alternatively, when choosing the destination path, transmission can be chosen from a plurality of ageing similar transmission path
Stability highest destination path transmits data, so as to not only ensure that efficiency of transmission, while also significant increase transmission success
Rate, it ensure that the reliability of data transfer.
Based on above-mentioned design, when source node transmits data to destination node, by travel through source node to destination node it
Between all paths, and calculate per paths stable weights, then according to per paths path data and calculate it is every
The stable weights of paths choose the path for meeting preparatory condition as the target between the source node and the destination node
Path, to transmit data based on the destination path.Thereby, it is possible to transmission stability highest is chosen from more transmission paths
Destination path transmits data, so as to significant increase transmission success rate, ensure that the reliability of data transfer.
Further, referring to Fig. 3, present pre-ferred embodiments also provide a kind of data transmission device 200, described device
Including：
Spider module 210, for responding request of the source node to destination node transmission data, the source node is traveled through to institute
State all paths between destination node.
Acquisition module 220, for obtaining the path data of every paths, wherein, the path data includes the relaying
Field intensity value and traffic rate value between node number, adjacent node.
Computing module 230, for according to the path data per paths and default field intensity value, traffic rate value with it is steady
Determine the corresponding relation between weights, calculate the stable weights per paths.
Module 240 is chosen, for the stable weights according to the path data per paths and the every paths calculated, choosing
The path for meeting preparatory condition is taken as the destination path between the source node and the destination node, with based on the target
Path transmission data.
Alternatively, the computing module 230, it is additionally operable to according to the field intensity value between node adjacent in every paths and leads to
Believe that rate value calculates the stable weights in the path between each adjacent node, and based between each adjacent node
The stable weights in path, the stable of every paths for obtaining the stable weights composition in the path between each adjacent node are weighed
Value.
Alternatively, the selection module 240, it is additionally operable to judge in all paths with the presence or absence of having between adjacent node
The stable weights in path are less than the path of pre-determined stability weights, if in the presence of there will be the path having between adjacent node
The path that stable weights are less than pre-determined stability weights is abandoned, and the destination path is chosen from remaining path.
Alternatively, the selection module 240, is additionally operable to be ranked up remaining path based on stablizing weights, is arranged
Sequence result, obtained from the ranking results and stablize the path of weights highest at least one, and stablize weights highest from described
The minimum path of via node number is chosen at least one path as the destination path.
Alternatively, the selection module 240, if being additionally operable to all paths all there are path between adjacent node
Stable weights are less than the path of pre-determined stability weights, then obtain the stable path of weights highest at least one, and from the stabilization
The minimum path of via node number is chosen in the path of weights highest at least one as the destination path.
The concrete operation method of each functional module in the present embodiment can refer to corresponding steps in above method embodiment
It is described in detail, it is no longer repeated herein.
Further, referring to Fig. 4, a kind of structural representation of the communication equipment 100 provided for present pre-ferred embodiments
Block diagram.In the present embodiment, the communication equipment 100 can be each node in the data transmission system, such as described logical
Believe that equipment 100 both can be the source node or the destination node, can also be the via node.In addition, institute
It can also be other any equipment with data processing function to state communication equipment 100.
As shown in figure 4, the communication equipment 100 can make general bus architecture to realize by bus 110.Root
According to the concrete application and overall design constraints condition of communication equipment 100, bus 110 can include any number of interconnection bus and
Bridge joint.Bus 110 is electrically connected to various together, and these circuits include processor 120, storage medium 130 and EBI
140.Alternatively, communication equipment 100 can be connected the grade of network adapter 150 via bus 110 using EBI 140.Net
Network adapter 150 can be used for the signal processing function for realizing physical layer in cordless communication network, and realize that radio frequency is believed by antenna
Number send and receive.User interface 160 can connect external equipment, such as：Keyboard, display, mouse or control stick etc..
Bus 110 can also connect various other circuits, such as timing source, ancillary equipment, voltage regulator or management circuit,
These circuits are known in the art, therefore are no longer described in detail.
It can replace, communication equipment 100 may also be configured to generic processing system, such as be commonly referred to as chip, the general place
Reason system includes:The one or more microprocessors of processing function are provided, and at least one of of storage medium 130 is provided
External memory storage, it is all these all by external bus architecture with it is other support be electrically connected to together with.
Interchangeable, communication equipment 100 can be realized using following:With processor 120, EBI 140, user
The ASIC (application specific integrated circuit) of interface 160；And at least a portion of the storage medium 130 in one single chip is integrated in, or
Person, communication equipment 100 can be realized using following:One or more FPGA (field programmable gate array), PLD are (programmable
Logical device), controller, state machine, gate logic, discrete hardware components, any other suitable circuit or be able to carry out this
Any combination of the invention circuit of described various functions in the whole text.
Wherein, processor 120 is responsible for bus 110 and general processing and (including performs and be stored in storage medium 130
Software).Processor 120 can be realized using one or more general processors and/or application specific processor.Processor 120
Example includes microprocessor, microcontroller, DSP Processor and the other circuits for being able to carry out software.Should be by software broadly
It is construed to represent instruction, data or its any combination, regardless of whether being called it as software, firmware, middleware, microcode, hard
Part description language or other.
Storage medium 130 is illustrated as separating with processor 120 in Fig. 1, however, those skilled in the art be easy to it is bright
In vain, storage medium 130 or its arbitrary portion can be located at outside communication equipment 100.For example, storage medium 130 can include
Transmission line, the carrier waveform modulated with data, and/or the computer product that is separated with radio node, these media can be with
Accessed by processor 120 by EBI 140.Alternatively, storage medium 130 or its arbitrary portion are desirably integrated into place
Manage in device 120, for example, it may be cache and/or general register.
The processor 120 can perform above-described embodiment, specifically, can be stored with the storage medium 130 described
Data transmission device 200, the processor 120 can be used for performing the data transmission device 200.The data transmission device
200 can include：
In summary, the embodiment of the present invention provides a kind of data transmission method and device, when source node passes to destination node
During transmission of data, by traveling through source node to the path data in all paths between destination node, the then every paths of acquisition, then
According to the corresponding relation between the path data of every paths and default field intensity value, traffic rate value and stable weights, meter
The stable weights per paths are calculated, and according to the path data of every paths and the stable weights of the every paths calculated, choosing
The path for meeting preparatory condition is taken as the destination path between the source node and the destination node, with based on the target
Path transmission data.Thereby, it is possible to choose transmission stability highest destination path transmission data from more transmission paths, from
And significant increase transmission success rate, it ensure that the reliability of data transfer.
In embodiment provided by the present invention, it should be understood that disclosed apparatus and method, can also be by other
Mode realize.Apparatus and method embodiment described above is only schematical, for example, flow chart and frame in accompanying drawing
Figure shows the system of multiple embodiments according to the present invention, the system frame in the cards of method and computer program product
Structure, function and operation.At this point, each square frame in flow chart or block diagram can represent a module, program segment or code
A part, the part of the module, program segment or code include it is one or more be used to realizing as defined in logic function
Executable instruction.It should also be noted that at some as in the implementation replaced, the function of being marked in square frame can also be with not
The order for being same as being marked in accompanying drawing occurs.For example, two continuous square frames can essentially perform substantially in parallel, they have
When can also perform in the opposite order, this is depending on involved function.It is also noted that in block diagram and/or flow chart
Each square frame and block diagram and/or the square frame in flow chart combination, the special of function or action as defined in performing can be used
Hardware based system realize, or can be realized with the combination of specialized hardware and computer instruction.
In addition, each functional module in each embodiment of the present invention can integrate to form an independent portion
Point or modules individualism, can also two or more modules be integrated to form an independent part.
It can replace, can be realized wholly or partly by software, hardware, firmware or its any combination.When
When being realized using software, it can realize in the form of a computer program product whole or in part.The computer program product
Including one or more computer instructions.It is all or part of when loading on computers and performing the computer program instructions
Ground is produced according to the flow or function described in the embodiment of the present invention.The computer can be all-purpose computer, special-purpose computer,
Computer network or other programmable devices.The computer instruction can store in a computer-readable storage medium, or
Person is transmitted from a computer-readable recording medium to another computer-readable recording medium, for example, the computer instruction
Wired (such as coaxial cable, optical fiber, digital subscriber can be passed through from a web-site, computer, server or data center
Line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or data
Center is transmitted.The computer-readable recording medium can be any usable medium that computer can access or wrap
Containing data storage devices such as the integrated server of one or more usable mediums, data centers.The usable medium can be magnetic
Property medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disc
Solid State Disk (SSD)) etc.
It should be noted that herein, term " including ", " including " or its any other variant are intended to non-row
Its property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and
And also include the other key elements being not expressly set out, or also include for this process, method, article or equipment institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence " including one ... ", it is not excluded that including institute
State in process, method, article or the equipment of key element and other identical element also be present.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Claims (10)
1. a kind of data transmission method, applied to data transmission network, it is characterised in that the data transmission network saves including source
Multiple via nodes between point, destination node and the source node and the destination node, methods described include：
The request that source node transmits data to destination node is responded, travels through the source node to owning between the destination node
Path；
The path data per paths is obtained, wherein, the path data is included between via node number, adjacent node
Field intensity value and traffic rate value；
According to the corresponding pass between the path data of every paths and default field intensity value, traffic rate value and stable weights
System, calculate the stable weights per paths；
According to the path data of every paths and the stable weights of the every paths calculated, the path for meeting preparatory condition is chosen
As the destination path between the source node and the destination node, to transmit data based on the destination path.
2. data transmission method according to claim 1, it is characterised in that the basis per paths path data with
And the corresponding relation between default field intensity value, traffic rate value and stable weights, calculate the stable weights per paths, bag
Include：
According between the field intensity value between node adjacent in every paths and each adjacent node of traffic rate value calculating
The stable weights in path；
Based on the stable weights in the path between each adjacent node, path between each adjacent node is obtained
The stable weights for every paths that stable weights are formed.
3. data transmission method according to claim 1, it is characterised in that the basis per paths path data and
The stable weights of the every paths calculated, the path for meeting preparatory condition is chosen as the source node and the destination node
Between destination path, including：
Judge to be less than pre-determined stability weights with the presence or absence of the stable weights for having the path between adjacent node in all paths
Path；
If in the presence of the path for being less than pre-determined stability weights there will be the stable weights in the path having between adjacent node is lost
Abandon, the destination path is chosen from remaining path.
4. data transmission method according to claim 3, it is characterised in that described that the mesh is chosen from remaining path
Path is marked, including：
Remaining path is ranked up based on weights are stablized, obtains ranking results；
The stable path of weights highest at least one is obtained from the ranking results；
The minimum path of via node number is chosen as the target from the stable path of weights highest at least one
Path.
5. data transmission method according to claim 3, it is characterised in that whether there is in all paths of judgement has
The stable weights in the path between adjacent node are less than after the path of pre-determined stability weights, and methods described also includes：
If all paths all there are the path of the stable weights less than pre-determined stability weights in the path between adjacent node,
Obtain the stable path of weights highest at least one；
The minimum path of via node number is chosen as the target from the stable path of weights highest at least one
Path.
6. a kind of data transmission device, applied to data transmission network, it is characterised in that the data transmission network saves including source
Multiple via nodes between point, destination node and the source node and the destination node, described device include：
Spider module, for responding request of the source node to destination node transmission data, the source node is traveled through to the target
All paths between node；
Acquisition module, for obtaining the path data of every paths, wherein, the path data includes the via node
Field intensity value and traffic rate value between several, adjacent node；
Computing module, for the path data according to every paths and default field intensity value, traffic rate value and stablize weights
Between corresponding relation, calculate per paths stable weights；
Module is chosen, for the stable weights according to the path data per paths and the every paths calculated, chooses and meets
The path of preparatory condition is as the destination path between the source node and the destination node, to be passed based on the destination path
Transmission of data.
7. data transmission device according to claim 6, it is characterised in that：
The computing module, it is additionally operable to be calculated often according to the field intensity value between node adjacent in every paths and traffic rate value
The stable weights in the path between individual adjacent node, and based on the stable power in the path between each adjacent node
Value, obtain the stable weights of every paths of the stable weights composition in path between each adjacent node.
8. data transmission device according to claim 6, it is characterised in that：
The selection module, it is additionally operable to judge in all paths with the presence or absence of the stable weights for having the path between adjacent node
Less than the path of pre-determined stability weights, if in the presence of there will be the stable weights in the path having between adjacent node to be less than in advance
If the path of stable weights abandons, the destination path is chosen from remaining path.
9. data transmission device according to claim 8, it is characterised in that：
The selection module, it is additionally operable to be ranked up remaining path based on stablizing weights, ranking results is obtained, from the row
The stable path of weights highest at least one is obtained in sequence result, and is selected from the stable path of weights highest at least one
The minimum path of via node number is taken as the destination path.
10. data transmission device according to claim 8, it is characterised in that：
The selection module, if be additionally operable to all paths all there are path between adjacent node stable weights be less than it is pre-
If the path of stable weights, then the stable path of weights highest at least one is obtained, and from the stable weights highest at least
The minimum path of via node number is chosen in one paths as the destination path.
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