CN105282756B - A kind of train backbone network and Train Communication Network - Google Patents
A kind of train backbone network and Train Communication Network Download PDFInfo
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- CN105282756B CN105282756B CN201510725494.4A CN201510725494A CN105282756B CN 105282756 B CN105282756 B CN 105282756B CN 201510725494 A CN201510725494 A CN 201510725494A CN 105282756 B CN105282756 B CN 105282756B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H04W4/046—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
Abstract
A kind of train backbone network and Train Communication Network, wherein, train backbone network includes: multiple wireless backbone nodes, the both ends of every section vehicle are respectively arranged with wireless backbone node, wherein, multiple wireless backbone nodes include top node, when carrying out train just operation operation, top node is configured to obtain the location information of other wireless backbone nodes by the cordless communication network being made of multiple wireless backbone nodes, and combines the location information of itself to complete train and just run operation.Since the train backbone network is realized using wireless broad band technology, physics cable is eliminated, can effectively evade connector pin poor contact problem caused by repeatedly plugging.This not only simplifies the connection types of train backbone network, and the communication quality of backbone network has been effectively ensured, and improve the reliability of backbone network.
Description
Technical field
The present invention relates to Train Communication Network technical fields, specifically, being related to a kind of train backbone network and train communication
Network.
Background technique
IEC61375 international standard is by Train Communication Network (Train Communication Network, referred to as TCN)
It is divided into two levels, i.e. the marshalling net (Consist positioned at the backbone network (Train Backbone) of top layer and positioned at bottom
Network)。
Currently, train backbone network mainly uses bussing technique to realize, the common bus in train backbone network includes twisted wire
Formula train bus-line (Wire Train Bus, referred to as WTB) and multifunctional vehicle bus (Multifunction Vehicle
Bus, referred to as MVB).Wherein, WTB is mainly used on the train (such as locomotive and motor-car etc.) with dynamic marshalling demand, and
MVB is mainly used on the train (such as motor-car) with fixed marshalling characteristic.
Train just operation (Train Inauguration) is known as to the TCN process for carrying out initialization and dynamic configuration, it should
Process is the premise that TCN is worked normally, when betiding train and powering on or organize into groups structure and change.This process relates generally to bone
The number of dry net node (Train Backbone Node, referred to as TBN) and marshalling net, the building of physical network topology, vehicle
The determination of relativeness, building of logical network topology etc. between direction and backbone network reference direction.
Therefore for having for the train of dynamic marshalling demand, TCN must have first operation function.It only uses at present
The train backbone network of WTB technology supports just operation function.However, the train backbone network currently based on bussing technique exists because of physics
Backbone network Problem of Failure caused by connector plugs repeatedly.
Bussing technique is a kind of technology based on physics cable, when carrying out the perforation of entire train backbone network, is arranged between compartment
Vehicle backbone network needs to connect by connector.For having for the train of dynamic marshalling demand, behaviour is hung when compartment mounts reconciliation
When work reaches certain number, repeatedly plug will lead to connector pin poor contact.In addition, long-time air oxidation and dust are made
With more exacerbating this influence.And this can not only reduce train backbone Network Communication Quality, but also may cause train backbone network
It is completely unavailable.
Based on the above situation, the new train backbone network of one kind is researched and developed to have important practical significance.
Summary of the invention
To solve the above problems, the present invention provides a kind of new train backbone networks comprising:
The both ends of multiple wireless backbone nodes, every section vehicle are respectively arranged with wireless backbone node,
Wherein, the multiple wireless backbone node includes top node, when carrying out train just operation operation, the top
Portion's node is configured to obtain other wireless backbones by the cordless communication network being made of the multiple wireless backbone node
The location information of node, and combine the location information of itself to complete train and just run operation.
According to one embodiment of present invention, when carrying out train just operation operation, the top node is detected entirely first
The other wireless backbone nodes of train, and the location information of each wireless backbone node is obtained, then according to each nothing
The location information of line backbone network node determines the node spacing of the top node Yu other wireless backbone nodes, and according to institute
State the building that node spacing completes physical network topology.
According to one embodiment of present invention, the top node is configured to be completed according to the physical network topology each
The number of wireless backbone node.
According to one embodiment of present invention, the top node includes:
Position information acquisition module is used to obtain own location information；
Business logic modules and wireless data transmission module, the business logic modules and the position information acquisition module and nothing
The connection of line number transmission module, is used to complete the discovery of full train radio backbone network node by the wireless data transmission module, also uses
In own location information is sent to other wireless backbone nodes by the wireless data transmission module and receives other wireless bones
The corresponding location information that dry net node is sent, and combining position information completes train and just runs operation.
According to one embodiment of present invention, the top node further include:
Wireless communication module is connect with the business logic modules, for carry out business logic modules transmission
Data are sent to other wireless backbone nodes, and the data that the other wireless backbone nodes for being also used to receive are sent pass
It is defeated by the business logic modules.
According to one embodiment of present invention, the top node further include:
Network Interface Module is used to connect with the corresponding interface of other Train Communication Network.
According to one embodiment of present invention, the structure of each wireless backbone node is identical.
The present invention also provides a kind of Train Communication Network comprising described in any item train backbone networks as above.
According to one embodiment of present invention, the Train Communication Network further include:
Multiple train marshalling list nets, be correspondingly arranged in each vehicle of train and respectively with the wireless bone in locating vehicle
Dry net node is correspondingly connected with.
According to one embodiment of present invention, the Train Communication Network further include:
Multiple wired backbone nodes, wherein at least one wired backbone node is respectively configured in every section vehicle, it is each
Wired backbone node by default bus connection, each wired backbone node respectively with the volume in same vehicle
Networking is correspondingly connected with.
Existing backbone technology is substantially a kind of technology based on physics cable, is carrying out the perforation of permutation vehicle backbone network
When, it needs to connect by connector between compartment.For having for the train of dynamic marshalling demand, behaviour is hung when vehicle mounts reconciliation
When work reaches certain number, repeatedly plug will lead to connector pin poor contact.In addition prolonged air oxidation and dust
Effect more exacerbates this influence.And this can not only reduce the communication quality of train backbone network, but also it is complete to may cause backbone network
It is complete unavailable.
Since train backbone network provided by the present invention is realized using wireless broad band technology, which removes from
Physics cable can effectively evade connector pin poor contact problem caused by plugging repeatedly.This not only simplifies train bones
Dry net connection type, and it is effectively guaranteed train backbone Network Communication Quality, improve train backbone network reliability.
Meanwhile for the existing train backbone network using MVB, need manually to carry out before operating normally due to MVB pre-
When first configuring, therefore using it as backbone technology, it is restricted the automatic configuration of train backbone network.And it is this
Automation mechanism missing it is restricted will lead to this kind of train backbone network can not be applied to dynamic marshalling demand train on,
Greatly reduce this kind of train backbone network use scope.
And artificial object between carrying out vehicle is needed for the existing train backbone network using WTB, when organizing into groups due to dynamic
Cable segment docking is managed, this can equally reduce this service flexibility, while also increase related personnel's labor intensity, correspondingly increase
Human cost is added.
Train backbone network provided by the present invention uses wireless communication technique, TCN configuration can be automatically performed, compared to existing
Wired train backbone network has better flexibility.Meanwhile wireless broad band technology also can be effectively reduced dynamic grouping procedures
Labor intensity and human cost.
The transmission rate of WTB is 1Mbps, this speed grade is only used for a small amount of train control data transmission between marshalling.Separately
On the one hand, with the aggravation that current development of Mobile Internet technology impacts traditional manufacture, train intelligence is inexorable trend, and this
It is required that backbone network must have the ability for supporting multiple business, resultant is the transmission demand to a large amount of even mass datas
It is growing.And this requirement is obviously unable to satisfy currently based on wired train backbone network of WTB technology.
Wireless train backbone network proposed by the invention uses wireless broad band technology, can support the up to number of 1Gbps at present
According to transmission bandwidth, therefore carrying can be provided for more business and supported.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.Objectives and other advantages of the present invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is required attached drawing in technical description to do simple introduction:
Fig. 1 is the structural schematic diagram of train backbone network according to an embodiment of the invention；
Fig. 2 is the structural schematic diagram of top node according to an embodiment of the invention；
Fig. 3 is the schematic diagram of direction of traffic；
Fig. 4 and Fig. 5 is the relatively positive and relatively reversed schematic diagram of vehicle respectively；
Fig. 6 is the structural schematic diagram of Train Communication Network according to an embodiment of the invention；
Fig. 7 is the work flow diagram of Train Communication Network according to an embodiment of the invention.
Specific embodiment
Below with reference to the accompanying drawings and embodiments embodiment that the present invention will be described in detail, how skill is applied to the present invention whereby
Art means solve technical problem, and the realization process for reaching technical effect can be fully understood and implemented.It should be noted that
As long as not constituting conflict, each feature in each embodiment and each embodiment in the present invention can be combined with each other, institute's shape
At technical solution it is within the scope of the present invention.
Meanwhile in the following description, for illustrative purposes and numerous specific details are set forth, to provide to of the invention real
Apply the thorough understanding of example.It will be apparent, however, to one skilled in the art, that the present invention can not have to tool here
Body details or described ad hoc fashion are implemented.
In addition, step shown in the flowchart of the accompanying drawings can execute in the computer system of executable instruction, also,
It, in some cases, can be to be different from shown in sequence execution herein although logical order is shown in flow charts
The step of out or describing.
For security risk existing for existing train backbone network, a kind of new train backbone network is present embodiments provided,
Wherein, Fig. 1 shows the structural schematic diagram of the train backbone network.
As shown in Figure 1, train backbone network provided by the present embodiment includes multiple wireless backbone nodes, i.e., wireless backbone
Net node 101_1, wireless backbone node 101_2 ..., wireless backbone node 101_2n-1 and wireless backbone node
101_2n.Wherein, in the present embodiment, these wireless backbone nodes are separately positioned on the both ends of the every section vehicle of train.
Specifically, in the present embodiment, the 1st wireless backbone node 101_1 and the 2nd wireless backbone node 101_2 difference
The first end and second end of first segment vehicle is set.The rest may be inferred, 2n-1 wireless backbone node 101_2n-1 and 2n
Wireless backbone node 101_2n is separately positioned on the first end and second end of the n-th section vehicle.
These wireless backbone network nodes being arranged in each section vehicle have collectively constituted one, and to be able to carry out wireless data mutual
The cordless communication network of biography includes a top node (i.e. host node) in these wireless backbone network nodes.Power on when train or
When marshalling structure changes and needs to carry out just to run operation, top node will obtain other through wireless communication
The location information of wireless backbone node, and operation is just run in conjunction with the location information of itself to complete train.
In the present embodiment, preferably the 1st wireless backbone node 101_1 for starting direction front end positioned at train is arranged
For top node, and full tailstock portion will be located at and be set as bottom section with the wireless backbone node of top node lie farthest away
Point.
It should be noted that in other embodiments of the invention, top node can also be for positioned at other rational positions
Locate the wireless backbone node of (such as train middle position), the invention is not limited thereto.
The structure for each wireless backbone node that train backbone network provided by the present embodiment is included is identical, therefore is
The convenience of description, below only by taking a certain wireless backbone node as an example come to the purpose of the present invention, principle and advantage make into
The elaboration of one step.
Fig. 2 shows the structural schematic diagrams of the 1st wireless backbone node 101_1 in the present embodiment.
As shown in Fig. 2, the 1st wireless backbone node 101_1 includes: wireless data transmission module 201, position in the present embodiment
Data obtaining module 202 and business logic modules 203.Wherein, wireless data transmission module 201 is for realizing between wireless backbone node
Communication.
It should be pointed out that in different embodiments of the invention, wireless data transmission module 201 can use different technologies
Scheme realizes, for example, Industrial Wireless, IEEE802.15 protocol suite correlation wireless technology (such as ZigBee, bluetooth etc.),
Infrared communication technique, GSM-R and LTE-R technology etc., the invention is not limited thereto.
Position information acquisition module 202 is connect with business logic modules 203, is used to obtain the 1st wireless backbone node
The location information of 101_1.Specifically, in the present embodiment, position information acquisition module 202 is realized using GPS technology.GPS device
It can determine wireless backbone node from the three-dimensional coordinate (including longitude, latitude and height) in physical space.
It should be noted that in other embodiments of the invention, position information acquisition module 202 can also adopt other conjunctions
The mode or technology of reason realize that the present invention is similarly not so limited to.Such as in one embodiment of the invention, location information obtains
Module 202 both can be based on such as Beidou satellite navigation system (BeiDou Navigation Satellite System, abbreviation
For the realization of BDS), Russian Glonass (GLONASS) system or European galileo (GALILEO) system, can also be based on connecing
The technologies such as signal strength or base station location of receipts are realized.
Business logic modules 203 are connect with position information acquisition module 202, can with position information acquisition module 202
Carry out one-way data interaction.Specifically, in the present embodiment, own location information that position information acquisition module 202 will acquire
It is transferred to business logic modules 203.
Business logic modules 203 are connect with wireless data transmission module 201, and complete full train radio backbone network section by the latter
Point discovery；The other wireless backbone nodes of full train are sent to by the own location information that the latter will acquire and are received simultaneously
The respective location information that other wireless backbone nodes are sent, such business logic modules 203 also can be according to each wireless
Backbone network node location information completes train and just runs operation.
Specifically, in the present embodiment, in train backbone network establishment stage, the wireless data transmission module of this wireless backbone node
The data broadcasting is simultaneously sent to the other nothings of full train by 201 Neighbor Discovery Protocol data of the reception from business logic modules 203
Line backbone network node, while the Neighbor Discovery Protocol data that the other wireless backbone nodes of full train are sent are received, it is complete with this
Help the discovery of train radio backbone network node.
In wireless backbone establishment stage, this wireless backbone node passes through wireless data transmission module 201 for service logic mould
The own location information (location information is acquired by position information acquisition module 202) that block 203 provides is broadcast to full train
Other wireless backbone nodes.Meanwhile this wireless backbone node also passes through wireless data transmission module 201 and receives the other nothings of full train
The respective location information of line backbone network node broadcast.According to the location information of each wireless backbone node, this wireless backbone
Node can determine the relative distance (such as spacing) of itself and other wireless backbone nodes, and then successively pass by relative distance
The relationship of increasing determines other each wireless backbone node locations, is finally completed other each wireless backbone nodes and just runs ginseng
Number determination and the building of wireless train backbone network.
As shown in Fig. 2, wireless backbone node provided by the present embodiment further includes wireless communication module 204.Wherein, nothing
Line communication module 204 is connect with business logic modules 203, is used to business logic modules 203 transmitting the data come being sent to
Other wireless backbone nodes are also used to the data that other wireless backbone node-node transmissions come being transferred to business logic modules
203, so that business logic modules 203 are further processed.
Specifically, in the present embodiment, after the completion of the building of train radio backbone network, on the one hand business logic modules 203 are led to
Other wireless backbone nodes will be sent to across marshals data by crossing wireless communication module 204, and another convenience is also by wireless communication
Module 204 is received from other wireless backbone nodes across marshals data.In addition, business logic modules 203 are also by wireless
The first operation protocol data locally generated is sent to the other wireless backbone nodes of full train by communication module 204, also passes through nothing
Line communication module 204 receives the respective just operation protocol data that the other wireless backbone nodes of full train are sent.
In the present embodiment, wireless communication module 204 is preferably realized using WLAN technology.Certainly, of the invention other
In embodiment, wireless communication module 204 can also be realized using other reasonable wireless broad band technologies, the present invention is not limited to
This.Such as in one embodiment of the invention, wireless communication module 204 can also use long term evolution (Long Term
Evolution, referred to as LTE) modes such as technology or Wireless Laser Communication Technology realize.
In wireless backbone node provided by the present invention, wireless data transmission module 201 completes train radio for assisting
The foundation of backbone network, and the redundant transmission channel after the completion of building of train radio backbone network as first operation protocol data.Nothing
Realization after the completion of wireless backbone constructs of line communication module 204 runs protocol data transmission across marshals data and just.
When running operation at the beginning of carrying out train, the 1st wireless backbone node (i.e. top node) 101_1 detects train first
Other wireless backbone nodes find the other wireless backbone nodes for being under the jurisdiction of full train by wireless data transmission module 201.
At the same time, each wireless backbone node of full train determines the position letter of itself by position information acquisition module 202
Breath (i.e. from the three-dimensional coordinate in physical space).
1st wireless backbone node 101_1 sends position to other wireless backbone nodes by wireless data transmission module 201
Solicited message can get full train radio backbone network according to the location information of other wireless backbone node feeding backs in this way
The location information of node.1st wireless backbone node 101_1 can be determined according to these location informations itself and it is other each wireless
The spacing of backbone network node.
The business logic modules 203 of 1st wireless backbone node 101_1 complete vehicle according to obtained node pitch information
Determination, backbone network node number, full train physics and the logical network topology of relative direction calculate and point of network parameter
The critical process of the just operation operation such as hair.
It will pass through wireless backbone node in this way and realize full train backbone network and penetrate through and work normally.
As shown in figure 3, vehicle both ends are referred to as first end and second end by track transportation industry, wherein direction of traffic is fixed
Justice is the direction from second end to first end.In the present embodiment, train backbone network reference direction is defined as train and starts direction.
Vehicle relative direction is the in the same direction or inverse relationship of train directions Yu backbone network reference direction.As shown in figure 4, if direction of traffic with
Backbone network reference direction (i.e. train starts direction) is identical, then vehicle relative direction is referred to as positive；And as shown in figure 5, if vehicle
Direction and backbone network reference direction (i.e. train starts direction) are on the contrary, then vehicle relative direction is referred to as reversed.
Again as shown in Fig. 2, wireless backbone node provided by the present embodiment further includes Network Interface Module 205.Its
In, Network Interface Module 205 is connect with business logic modules 203, is used to connect with the corresponding interface of other Train Communication Network
It connects.
Since train TCN includes positioned at the train backbone network of top layer and positioned at the marshalling net of bottom, such as Fig. 6 institute
Show, in one embodiment of the invention, Train Communication Network also includes train marshalling list net (i.e. train marshalling list net 601_1 to column
Vehicle marshalling net 601_n).Wherein, train marshalling list net 601_1 is arranged in Section 1 vehicle of train, with setting in Section 1 vehicle
Wireless backbone node (i.e. wireless backbone node 101_1 and wireless backbone node 101_2) connection in.Train is compiled
Networking 601_n is arranged in the n-th section vehicle of train, (i.e. wireless with the wireless backbone node that is arranged in the n-th section vehicle
Backbone network node 101_2n-1 and wireless backbone node 101_2n) connection.
It should be pointed out that in other embodiments of the present invention, train marshalling list netting index amount can also be with rail vehicle quantity
Unequal, i.e. a section compartment may include one or more marshalling net, and marshalling can also across more piece compartment, the present invention is not limited to
This.
In addition, also may include wired train backbone network in Train Communication Network shown in Fig. 6.Wired train backbone
(i.e. wired train backbone network node 602_1 is to wired by multiple wired train backbone network nodes for being arranged in each vehicle for net
Train backbone network node 602_n) it constitutes.Specifically, as shown in fig. 6, wired train backbone network node 602_1 and marshalling net 601_
1 connection, wired train backbone network node 602_n are connect with marshalling net 601_n.
It should be pointed out that above-mentioned wired train backbone network node can be the existing backbone using WTB or MVB technology
Net node, the wired train backbone network constituted is WTB backbone network or MVB backbone network.It is also desirable on, it is noted that
State the compatibility consideration that wired train backbone network is mainly based upon Train Communication Network provided by the present invention to existing system.?
In existing WTB backbone network or MVB backbone network, it can use wireless train backbone network provided by the present invention and set as redundancy
It sets, can also be used as the transmission channel of emerging service.Certainly, for the TCN newly to put into effect, institute of the present invention can also only be configured
The wireless train backbone network of offer, without additionally configuring wired train backbone network as shown in FIG. 6.
Fig. 7 shows the work flow diagram of Train Communication Network shown in Fig. 6.
As shown in fig. 7, determining wireless backbone node in step s 701 first when Train Communication Network works.Specifically
Ground shows as the 1st wireless backbone node (i.e. top node) 101_1 and finds by wireless data transmission module 201 and be under the jurisdiction of full train
Other wireless backbone nodes.At the same time, each wireless backbone node of full train passes through position information acquisition module
202 determine own location information (i.e. from the three-dimensional coordinate in physical space).
In step S702, the 1st wireless backbone node 101_1 passes through wireless data transmission module 201 to other wireless backbone
Net node sends position request information, can get full column according to the location information of other wireless backbone node feeding backs in this way
The location information of vehicle radio backbone network node.
After the location information for getting each wireless backbone node, top node can be in step S703 according to each wireless
The location information of backbone network node determines the node spacing of top node Yu other wireless backbone nodes, and in step S704
The physical network topology of wireless backbone is constructed according to node pitch information obtained in step S703.
In the present embodiment, the process i.e. top node of the physical network topology of top node building wireless backbone are complete
Help the process that physics neighbouring relations determine between each wireless backbone node in train.Specifically, in the present embodiment, top section
Point can determine physics neighbouring relations between each wireless backbone node according to node separation size.
After building obtains the physical network topology of wireless backbone, top node will be in step S705 according to obtained by
Physical network topology complete wireless network node and marshalling net number.In the process, top node is realized to each
The number distribution of a wireless network node and marshalling net.
Then in step S706, top node determines each vehicle according to the location information of each wireless network node
Relative direction, and in step S707 building obtain the logical network topology of full train.In the present embodiment, top node building
The network layer of full train radio backbone network node and marshalling net is mainly completed during the logical network topology of full train
Location calculates and the processes such as distribution, routing rule foundation, access control policy building.
In step S708, it specifically may include such as net that Train Communication Network, which executes corresponding service logic task,
Tasks or the operations such as the monitoring of network topology, inter-consist data routing, application protocol interaction, protocol conversion and new business support.Its
In, network topology monitoring refers to the dynamic surveillance process to Train Communication Network TCN topology；Application protocol interaction refers to that train is logical
Communication network and upper layer application protocol continue interactive process, such as notice upper layer application protocol Train Communication Network topology changes
Time and wait treatment measures etc.；Protocol conversion refers to that Train Communication Network is involved in completely compatible existing backbone technology
And different agreement between the process mutually converted；New business support refers to support of the train communication system to service bearer.
In the present embodiment, Train Communication Network can persistently detect whether its physical network topology changes in step S709
Become, if its physical network topology changes (such as vehicle occur and carry additionally or solve extension), otherwise return step S701 continues
Execute step S708.
Existing backbone technology is substantially a kind of technology based on physics cable, is carrying out the perforation of permutation vehicle backbone network
When, it needs to connect by connector between compartment.For having for the train of dynamic marshalling demand, behaviour is hung when vehicle mounts reconciliation
When work reaches certain number, repeatedly plug will lead to connector pin poor contact.In addition prolonged air oxidation and dust
Effect more exacerbates this influence.And this can reduce train backbone Network Communication Quality, even result in train backbone network and completely can not
With.
Since train backbone network provided by the present invention is realized using wireless broad band technology, which exempts from
Physics cable has been removed, thus can effectively evade and repeatedly plug caused connector pin poor contact problem.This not only simplifies
Train backbone network connection type, and train backbone Network Communication Quality has been effectively ensured, improve train backbone network reliability.
Meanwhile for the existing train backbone network using MVB, need manually to carry out before operating normally due to MVB
When being pre-configured with, therefore using it as backbone technology, it is restricted the automatic configuration of train backbone network.And this
The restricted of kind of automation mechanism missing will lead to this kind of train backbone network and can not be applied to organize into groups the train of demand with dynamic
On, greatly reduce the use scope of this kind of train backbone network.
And for the existing train backbone network using WTB, when being organized into groups due to dynamic between the artificial progress vehicle of needs
The docking of physics cable segment, this can equally reduce the flexibility of this business, while also increase the labor intensity of related personnel, phase
Also increase human cost with answering.
Train backbone network provided by the present invention uses wireless communication technique, can be automatically performed the configuration of TCN, compared to
Existing wired train backbone network has better flexibility.Meanwhile wireless broad band technology can be effectively reduced dynamic and organize into groups
The labor intensity and human cost of journey.
The transmission rate of WTB is 1Mbps, this speed grade is only used for a small amount of train control data transmission between marshalling.Separately
One convenience, with the aggravation that current development of Mobile Internet technology impacts traditional manufacture, train intelligence is inexorable trend, and this
Just require backbone network that there must be the ability for supporting multiple business, resultant needed to the transmission of a large amount of even mass datas
Ask growing.And this requirement is obviously unable to satisfy currently based on wired train backbone network of WTB technology.
Wireless train backbone network provided by the present invention uses wireless broad band technology, can support the up to number of 1Gbps at present
According to transmission bandwidth, therefore carrying can be provided for more business and supported.
Meanwhile existing on train be respectively used to realize the more of the functions such as Train Control, passenger information and train diagnosis at present
Network stand-alone system is covered, and this not only causes the increase of TCN construction cost, also adds the complexity of network management.Meanwhile
Since the data transmitted in each separate network are actually to have correlation, and this correlation is artificially isolated and clearly disobeyed
Carry on the back the fine-grained management trend of network.Therefore building one can merge the novel backbone network of multiple separate networks on current train
It is just necessary, and current WTB and MVB is positioned at Train Control, it is clear that it is unable to satisfy this requirement.Since the present invention is mentioned
The train backbone network of confession is realized based on wireless broad band technology, therefore can be easier under the premise of the completely compatible prior art
Realize more seamless fusions of net.
Further, since bussing technique is substantially a kind of technology based on physics cable, therefore cause for a long time, train
Communication network is all a close network, and range is limited only to single-row train.And in fact, being to have between some train networks
Certain connections, and this also requires to realize intercommunication between train network.Meanwhile the rapid development of current intellectual technology requires object object
Between can talk with, it is clear that open between train network and intercommunication is also inexorable trend, and uses the train backbone of WTB and MVB at present
Net is clearly to disagree with this trend.Also due to train backbone network provided by the present invention uses wireless broad band technology,
Therefore the communication of Train Communication Network and external network can be conveniently realized, this also increases the openings of Train Communication Network
Property.
It should be understood that disclosed embodiment of this invention is not limited to specific structure disclosed herein or processing step
Suddenly, the equivalent substitute for these features that those of ordinary skill in the related art are understood should be extended to.It should also be understood that
It is that term as used herein is used only for the purpose of describing specific embodiments, and is not intended to limit.
" one embodiment " or " embodiment " mentioned in specification means the special characteristic described in conjunction with the embodiments, structure
Or characteristic is included at least one embodiment of the present invention.Therefore, the phrase " reality that specification various places throughout occurs
Apply example " or " embodiment " the same embodiment might not be referred both to.
Although above-mentioned example is used to illustrate principle of the present invention in one or more application, for the technology of this field
For personnel, without departing from the principles and ideas of the present invention, hence it is evident that can in form, the details of usage and implementation
It is upper that various modifications may be made and does not have to make the creative labor.Therefore, the present invention is defined by the appended claims.
Claims (8)
1. a kind of train backbone network characterized by comprising
The both ends of multiple wireless backbone nodes, every section vehicle are respectively arranged with wireless backbone node,
Wherein, the structure of each wireless backbone node is identical, and the multiple wireless backbone node includes top node, when into
When ranks vehicle just runs operation, the top node is configured to the channel radio by being made of the multiple wireless backbone node
Communication network obtains the location information of other wireless backbone nodes, and the location information of itself is combined to complete physical network topology
Building and train just run operation；
The train just runs the number, complete that operation includes the determination of each vehicle relative direction, each wireless backbone node
The calculating of train physical network topology and logical network topology and the distribution of network parameter；The vehicle relative direction is vehicle
The in the same direction or inverse relationship in direction and wireless backbone reference direction, the direction of traffic are defined as from the second end of vehicle to
The direction of one end, the wireless backbone reference direction are defined as train and start direction.
2. train backbone network as described in claim 1, which is characterized in that when carrying out train just operation operation, the top
Node detects the other wireless backbone nodes of full train first, and obtains the location information of each wireless backbone node, then
The section of the top node Yu other wireless backbone nodes is determined according to the location information of each wireless backbone node
Point spacing, and according to the building of node spacing completion physical network topology.
3. train backbone network according to claim 1 or 2, which is characterized in that the top node includes:
Position information acquisition module is used to obtain own location information；
Business logic modules and wireless data transmission module, the business logic modules are with the position information acquisition module and without line number
Transmission module connection, is used to complete the discovery of full train radio backbone network node by the wireless data transmission module, is also used to lead to
The wireless data transmission module is crossed own location information is sent to other wireless backbone nodes and receives other wireless backbones
The corresponding location information that node is sent, and combining position information completes train and just runs operation.
4. train backbone network as claimed in claim 3, which is characterized in that the top node further include:
Wireless communication module is connect with the business logic modules, the data for carrying out business logic modules transmission
Other wireless backbone nodes are sent to, the data that the other wireless backbone nodes for being also used to receive are sent are transferred to
The business logic modules.
5. train backbone network as claimed in claim 4, which is characterized in that the top node further include:
Network Interface Module is used to connect with the corresponding interface of other Train Communication Network.
6. a kind of Train Communication Network, which is characterized in that including train backbone network such as according to any one of claims 1 to 5.
7. Train Communication Network as claimed in claim 6, which is characterized in that the Train Communication Network further include:
Multiple train marshalling list nets, be correspondingly arranged in each vehicle of train and respectively with the wireless backbone in locating vehicle
Node is correspondingly connected with.
8. train communication network as claimed in claim 7, which is characterized in that the Train Communication Network further include:
Multiple wired backbone nodes, wherein at least one wired backbone node is respectively configured in every section vehicle, it is each wired
Backbone network node by default bus connection, each wired backbone node respectively with the marshalling net in same vehicle
It is correspondingly connected with.
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| CN109600247B (en) * | 2017-09-30 | 2021-02-23 | 比亚迪股份有限公司 | Train topology management method and system |
| CN108600018B (en) * | 2018-04-27 | 2021-11-30 | 北京东土军悦科技有限公司 | Train topology discovery method and device, train equipment and storage medium |
| CN112776852A (en) * | 2019-11-07 | 2021-05-11 | 株洲中车时代电气股份有限公司 | Train network structure and system based on wireless communication |
| CN110962888B (en) * | 2019-12-09 | 2021-06-29 | 中南大学 | Real-time dynamic train marshalling method and system |
| CN111818486B (en) * | 2020-07-03 | 2024-01-26 | 中车唐山机车车辆有限公司 | Vehicle communication method, device and equipment |
| CN112319551A (en) * | 2020-11-10 | 2021-02-05 | 交控科技股份有限公司 | Wireless communication method and system for train carriage |
| CN114194248B (en) * | 2021-12-03 | 2023-09-26 | 中车唐山机车车辆有限公司 | Local marshalling network architecture |
| CN114162172B (en) * | 2021-12-03 | 2023-07-21 | 中车唐山机车车辆有限公司 | White list establishing method, device and storage medium |
| CN114162174B (en) * | 2021-12-03 | 2023-02-28 | 中车唐山机车车辆有限公司 | Virtual marshalling network system of train |
| CN114162173B (en) * | 2021-12-03 | 2023-09-26 | 中车唐山机车车辆有限公司 | Method, equipment and storage medium for determining main role of WLTBN (Wireless local area network) |
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