CN106506271A - Data communications method and device - Google Patents
Data communications method and device Download PDFInfo
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- CN106506271A CN106506271A CN201610961713.3A CN201610961713A CN106506271A CN 106506271 A CN106506271 A CN 106506271A CN 201610961713 A CN201610961713 A CN 201610961713A CN 106506271 A CN106506271 A CN 106506271A
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- gateway
- data message
- onboard wireless
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of data communications method and device, wherein communication means include：First onboard wireless gateway or the second onboard wireless gateway receive the first data message that vehicle-mounted user sends；And add the first message control head to first data message, obtain the second data message；Earthward communication gate sends second data message for first onboard wireless gateway or the second onboard wireless gateway；First onboard wireless gateway or the second onboard wireless gateway send second data message by heartbeat data line to other side's onboard wireless gateway simultaneously, so that other side's onboard wireless gateway sends second data message to the ground communication gateway.And data message is last transmitted to terrestrial user by terrestrial wireless gateway.The present invention can solve the problem that the problem for lacking redundant wireless link present in existing vehicle-mounted monitoring information general transmission plateform system.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of data communications method and device.
Background technology
Vehicle-mounted monitoring information general transmission plateform system is flexibly used by planning as a whole vehicle-mounted monitoring information car ground transmission demand
GSM-R network and public mobile network resource, set up the end transparent and mutually isolated to business datum using pipeline transmission means
To end secure transmission link, with good access safety, transmission safety and transmission aging characteristic.Solve each monitoring system construction
Middle car ground transmission problem, improves each operation system construction and upper linear velocity.
In existing vehicle-mounted monitoring information general transmission plateform system, by the way of redundancy onboard wireless gateway：Train list
The onboard wireless gateway of two redundancies disposed by car, is separately mounted to headstock and the tailstock；Onboard wireless gateway includes two redundancies
Radio-cell, collaborative work between radio-cell；Each radio-cell is connected with two one group of car antenna；Each is vehicle-mounted
Radio network gateway has the IP address that oneself fixes, each equipment to connect by unique IP address (source/destination mark) parsing
Receive and send information.
However, in prior art, once there is the wireless network abnormal chain scission of headstock (or tailstock) onboard wireless gateway, and
In the case that the wireless link of the tailstock (or headstock) onboard wireless gateway is normally connected, car ground data cannot pass through the tailstock (or car
Head) wireless link interact.
Content of the invention
The invention provides a kind of data communications method and device, put down in order to solve existing vehicle-mounted monitoring information general transmission
Lack the problem of redundant wireless link present in platform system.
One aspect of the present invention provides a kind of data communications method, including：
Receive the first data message that vehicle-mounted user sends；Add the first message control head to above-mentioned first data message,
The second data message is obtained, wherein, the device identification comprising the first onboard wireless gateway, message in above-mentioned first message control head
The index mark that mark, wireless link identification and multichannel send；Earthward communication gate sends above-mentioned second data message；To
Second onboard wireless gateway sends above-mentioned second data message, so that above-mentioned second onboard wireless gateway is to above-mentioned ground communication net
Close and send above-mentioned second data message.
Above-mentioned send above-mentioned second data message to the second onboard wireless gateway, including：
By the heartbeat data line between above-mentioned first onboard wireless gateway and above-mentioned second onboard wireless gateway to above-mentioned
Second onboard wireless gateway sends above-mentioned second data message.
Above-mentioned data communications method, also includes：
Receive the 4th data message that ground communication gateway sends；Whether determine the device identification of the vehicle-mounted radio network gateway of target
Identical with the device identification of above-mentioned first onboard wireless gateway；If the device identification and above-mentioned of the vehicle-mounted radio network gateway of above-mentioned target
The device identification of one onboard wireless gateway is identical, then send above-mentioned 4th data message to above-mentioned vehicle-mounted family.
Above-mentioned data communications method, also includes：
If the device identification of the device identification of the vehicle-mounted radio network gateway of above-mentioned target and above-mentioned first onboard wireless gateway not phase
With then to above-mentioned 4th data message of above-mentioned second onboard wireless gateway transmission.
Above-mentioned earthward communication gate sends above-mentioned second data message, including：
By at least two wireless links between above-mentioned first onboard wireless gateway and above-mentioned ground communication gateway upwards
State ground communication gateway and send above-mentioned second data message.
By at least two wireless links between above-mentioned first onboard wireless gateway and above-mentioned ground communication gateway upwards
Before stating above-mentioned second data message of ground communication gateway transmission, also include：
To the log-on message that above-mentioned ground communication gateway sends above-mentioned first onboard wireless gateway, wrap in above-mentioned log-on message
Containing above-mentioned first onboard wireless gateway device identification, and above-mentioned first onboard wireless gateway and above-mentioned ground communication gateway it
Between at least two wireless links mark.
Above-mentioned send above-mentioned 4th data message to above-mentioned vehicle-mounted family after, also include：
Duplicate removal process is carried out to above-mentioned 4th data message for receiving.
Another aspect of the present invention provides a kind of data communications method, including：
The second data message of the first onboard wireless gateway transmission is received, wherein, comprising upper in above-mentioned second data message
State the first message control head, the device identification comprising the first onboard wireless gateway in above-mentioned first message control head, message identification,
The index mark that wireless link identification and multichannel send；Earthward communication gate sends above-mentioned second data message.
A kind of above-mentioned data communications method, also includes：
The 4th data message that above-mentioned ground communication gateway sends is received, vehicle-mounted comprising target in above-mentioned 4th data message
The device identification of radio network gateway；Determine the device identification of the vehicle-mounted radio network gateway of target whether with above-mentioned second onboard wireless gateway
Device identification is identical；If the device identification of the device identification of the vehicle-mounted radio network gateway of above-mentioned target and above-mentioned second onboard wireless gateway
Identical, then above-mentioned 4th data message is sent to above-mentioned second onboard wireless gateway.
A kind of above-mentioned data communications method, also includes：
If the device identification of the device identification of the vehicle-mounted radio network gateway of above-mentioned target and above-mentioned second onboard wireless gateway not phase
With then to above-mentioned 4th data message of above-mentioned first onboard wireless gateway transmission.
Also include in above-mentioned 4th data message：Wireless link identification；Above-mentioned to above-mentioned second onboard wireless gateway send
Before above-mentioned 4th data message, also include：
According to the mapping relations of wireless link identification, above-mentioned link identification is changed.
Above-mentioned earthward communication gate sends above-mentioned second data message, including：
By at least two wireless links between above-mentioned second onboard wireless gateway and above-mentioned ground communication gateway upwards
State ground communication gateway and send above-mentioned second data message.
By at least two wireless links between above-mentioned second onboard wireless gateway and above-mentioned ground communication gateway upwards
Before stating above-mentioned second data message of ground communication gateway transmission, also include：
To the log-on message that above-mentioned ground communication gateway sends above-mentioned second onboard wireless gateway, wrap in above-mentioned log-on message
Containing above-mentioned second onboard wireless gateway device identification, and above-mentioned second onboard wireless gateway and above-mentioned ground communication gateway it
Between at least two wireless links mark.
Further aspect of the present invention provides a kind of data communications method, including：
Receive the second data message that the first onboard wireless gateway and/or the second onboard wireless gateway send, above-mentioned second
Head, setting comprising the first onboard wireless gateway in above-mentioned first message control head are controlled comprising above-mentioned first message in data message
The index mark that standby mark, message identification, wireless link identification and multichannel send；Earthward user sends above-mentioned second data
Message.
After above-mentioned earthward user sends above-mentioned second data message, also include：
Device identification, message identification, wireless link identification according to above-mentioned first onboard wireless gateway and multichannel send
Index mark duplicate removal process is carried out to above-mentioned second data message.
Before above-mentioned earthward user sends above-mentioned second data message, also include：
Determine the device identification of above-mentioned first onboard wireless gateway whether in ground communication gateway registration.
Whether the device identification of the above-mentioned first onboard wireless gateway of above-mentioned determination is also wrapped before ground communication gateway registration
Include：
According to device identification mapping relations, the device identification of above-mentioned first onboard wireless gateway is mapped.
A kind of above-mentioned data communications method, also includes：
Receive the 3rd data message that above-mentioned terrestrial user sends；Add the control of the second message to above-mentioned 3rd data message
Head, obtains the 4th data message；Above-mentioned second message control head includes：The device identification of the vehicle-mounted radio network gateway of target, message mark
Know, the index that wireless link identification and multichannel send is identified；Wherein, the device identification of the vehicle-mounted radio network gateway of above-mentioned target is the
The device identification of one onboard wireless gateway or the device identification of the second onboard wireless gateway.
Present invention also offers a kind of data communication equipment, including：
Receiver module, for receiving the first data message that vehicle-mounted user sends；
Processing module, for adding the first message control head to above-mentioned first data message, obtains the second data message, its
In, the device identification comprising the first onboard wireless gateway in above-mentioned first message control head, message identification, wireless link identification and
The index mark that multichannel sends；
Sending module, sends above-mentioned second data message for earthward communication gate；
Above-mentioned sending module, is additionally operable to send above-mentioned second data message to the second onboard wireless gateway, so that above-mentioned the
Two onboard wireless gateways send above-mentioned second data message to above-mentioned ground communication gateway.
Present invention also offers a kind of data communication equipment, including：
Receiver module, for receiving the second data message that the first onboard wireless gateway sends, wherein, above-mentioned second data
Head, the equipment mark comprising the first onboard wireless gateway in above-mentioned first message control head are controlled comprising above-mentioned first message in message
The index mark that knowledge, message identification, wireless link identification and multichannel send；Sending module, sends out for earthward communication gate
Serve and state the second data message.
Present invention also offers a kind of data communication equipment, including：
Receiver module, for receiving the second data that the first onboard wireless gateway and/or the second onboard wireless gateway send
Message, controls head comprising above-mentioned first message in above-mentioned second data message, includes the first car in above-mentioned first message control head
Carry the index mark that device identification, message identification, wireless link identification and the multichannel of radio network gateway send；Sending module, uses
Above-mentioned second data message is sent in earthward user.
The invention discloses a kind of data communications method and device, wherein communication means include：First onboard wireless gateway
Or second onboard wireless gateway receive the first data message that vehicle-mounted user sends；And first is added to first data message
Message controls head, obtains the second data message；First onboard wireless gateway or the second onboard wireless gateway earthward communication gate
Send second data message；Simultaneously the first onboard wireless gateway or the second onboard wireless gateway by heartbeat data line to right
Square onboard wireless gateway sends second data message, so that other side's onboard wireless gateway is sent to the ground communication gateway
Second data message.And data message is last transmitted to terrestrial user by terrestrial wireless gateway.The present invention can solve the problem that existing
There is the problem for lacking redundant wireless link present in vehicle-mounted monitoring information general transmission plateform system.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Earthward user sends datagram for Fig. 1 data communications methods of the present invention and one vehicle-mounted user of device embodiment
Schematic flow sheet；
Earthward user sends datagram for Fig. 2 data communications methods of the present invention and one vehicle-mounted user of device embodiment
Schematic diagram；
Fig. 3 is one onboard wireless gateway wireless link identification schematic diagram of data communications method of the present invention and device embodiment；
Earthward user sends datagram for Fig. 4 data communications methods of the present invention and two vehicle-mounted user of device embodiment
Schematic flow sheet；
Fig. 5 is that earthward user sends datagram for data communications method of the present invention and two ground communication gateway of device embodiment
The schematic flow sheet of text；
Fig. 6 is that data communications method of the present invention and three terrestrial user of device embodiment pass through the first onboard wireless gateway to car
Carry the schematic flow sheet that user sends datagram；
Fig. 7 data communications methods of the present invention and three terrestrial user of device embodiment send datagram to vehicle-mounted user
Schematic diagram；
Fig. 8 is that data communications method of the present invention and three terrestrial user of device embodiment pass through the second onboard wireless gateway to car
Carry the schematic flow sheet that user sends datagram；
Fig. 9 is the structural representation of one data communication equipment of data communications method of the present invention and device embodiment；
Figure 10 is the structural representation of three data communication equipment of data communications method of the present invention and device embodiment.
Specific embodiment
Accompanying drawing in below in conjunction with the embodiment of the present invention, to the embodiment of the present invention in technical scheme carry out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiment.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " in description and claims of this specification and above-mentioned accompanying drawing and/or
(if present)s such as " the 4 " is for distinguishing similar object, without being used for describing specific order or precedence.Should
The data that the understanding is so used can be exchanged in the appropriate case, so that embodiments of the invention described herein for example can
Implemented with the order in addition to those of diagram or description here.Additionally, term " comprising " and " having " and they
Any deformation, it is intended that cover non-exclusive includes, for example, contain the process of series of steps or unit, method, be
System, product or equipment are not necessarily limited to those steps or the unit that clearly lists, but may include clearly not list or
For other intrinsic steps of these processes, method, product or equipment or unit.
In technical scheme, train bicycle is respectively provided with onboard wireless gateway in headstock and the tailstock, and each is vehicle-mounted
Radio network gateway support at least two wireless access, also, and by two onboard wireless gateways by heartbeat data line communication be connected, car
Carry and the presence of other side is perceived by heartbeat data line between radio network gateway and carries out data forwarding, can be with mutually redundant backup；To reach
Wireless link redundancy has been arrived, the wireless network abnormal chain scission of headstock (or tailstock) onboard wireless gateway, the tailstock (or headstock) has been realized
In the case that the wireless link of onboard wireless gateway is normally connected, car ground data can pass through the wireless link of the tailstock (or headstock)
Interact.
Technical scheme is described in detail with specifically embodiment below.These are specifically implemented below
Example can be combined with each other, for same or analogous concept or process may be repeated no more in some embodiments.
Embodiment one
Earthward user sends datagram for Fig. 1 data communications methods of the present invention and one vehicle-mounted user of device embodiment
Schematic flow sheet, Fig. 2 are that earthward user sends datagram for data communications method of the present invention and one vehicle-mounted user of device embodiment
The schematic diagram of text, Fig. 3 are that data communications method of the present invention and one onboard wireless gateway wireless link identification of device embodiment are illustrated
Figure, Fig. 9 is the structural representation of one data communication equipment of data communications method of the present invention and device embodiment.
As shown in figure 1, the embodiment includes：
S101：Receive the first data message that vehicle-mounted user sends；
Specifically, as shown in Fig. 2 the first onboard wireless gateway passes through nothing of the first onboard wireless gateway to vehicle-mounted user side
Wired link receives the first data message that vehicle-mounted user sends.
Optionally, vehicle-mounted user is connected with the first onboard wireless gateway by On-board LAN.
Optionally, vehicle-mounted user sends at least two the first data messages to first onboard wireless by On-board LAN
Gateway.
Optionally, the first onboard wireless gateway is arranged on arbitrary onboard wireless gateway of train head or the tailstock.
Optionally, the first onboard wireless gateway is at least two to the wireless link of vehicle-mounted user side.Specifically, in this reality
Apply in example, the first onboard wireless gateway is set to as a example by two to the wireless link of vehicle-mounted user side.
S102：Add the first message control head to first data message, obtain the second data message, wherein, described
Device identification comprising the first onboard wireless gateway, message identification, wireless link identification and multichannel in first message control head
The index mark of transmission；
Specifically, as shown in Fig. 2 after the first onboard wireless gateway receives the first data message that vehicle-mounted user sends,
Add the first message control head to the first data message, message control head is used for ground communication gateway authentication and received data report
Whether the car borne gateway of text is registered, and message control head can be also used for ground communication gateway carries out identical data message
Duplicate removal process.
Optionally, the first message control head includes：The device identification of the first onboard wireless gateway, message identification, radio chains
The index mark that line and multichannel send.
Optionally, the device identification of the first onboard wireless gateway is corresponding with the engine number of train bicycle, and engine number is row
The unique mark of car bicycle；
Optionally, the device identification of the first onboard wireless gateway is device id, and the device id is an IP subnet section, mark
Know the acted on behalf of subnet section of the first onboard wireless gateway, vehicle-mounted user can just select the first onboard wireless net in the subnet section
Put row data communication into；
Optionally, message identification can be used to identify different data messages, and different data messages has different messages
Mark, message identification are used for giving for change after data message is deleted by mistake；
Optionally, wireless link identification is used for transmission of the monitoring data message in wireless link, different gateway connections
Different wireless links；Specifically, in the present embodiment, if：Each onboard wireless gateway corresponds to two wireless links respectively,
As shown in figure 3, the first onboard wireless gateway is 1,2 to the wireless link identification that car-ground radio gateway side sends datagram, the
Two onboard wireless gateways are 3,4 to the wireless link identification that car-ground radio gateway side sends datagram.
Optionally, the index mark that multichannel sends is processed for realizing the duplicate removal to identical data message, in datagram
In the transmit process of text, identical data message has the index mark that identical multichannel sends.
S103a：Earthward communication gate sends second data message；
Specifically, as shown in Fig. 2 the first onboard wireless gateway passes through the first onboard wireless gateway earthward communication gate side
Wireless link earthward communication gate send with the addition of second data message.
Optionally, the first onboard wireless gateway is connected with ground communication gateway by wireless network.
Optionally, the first onboard wireless gateway sends at least two the second data messages to ground by wireless network
Face communication gate.
Optionally, (specific, in the present embodiment, be set to two is the first onboard wireless gateway by least two
Example.) the second data message is sent to ground communication gateway by wireless link, so that ground communication gateway is further transmitted to ground
User, so that complete the vehicle-mounted user process that earthward user sends datagram.
S103b：Second data message is sent to the second onboard wireless gateway, so that the second onboard wireless gateway
Second data message is sent to the ground communication gateway.
Specifically, as shown in Fig. 2 the second data gateway is sent to by heartbeat data line by the first onboard wireless gateway
Two onboard wireless gateways, the data message sent to car-ground radio gateway by the second onboard wireless gateway is as above by
One onboard wireless gateway the second data message that earthward communication gate sends is identical, needs by ground communication gateway authentication the
Whether one onboard wireless gateway is registered, if being registered, earthward user sends；Otherwise, the second data message is given up.
Optionally, can other side's transmission by heartbeat data line between the first onboard wireless gateway and the second onboard wireless gateway
Data message.
Optionally, onboard wireless gateway other side's onboard wireless gateway can be perceived by heartbeat data line whether can normal work
Make.
Specifically, S103a and S103b can be carried out simultaneously regardless of in front and back on execution sequence.That is the first onboard wireless net
Close the second data message is sent also to the second onboard wireless gateway the second data message of transmission to car-ground radio gateway.
Specifically, the first onboard wireless gateway is arranged on arbitrary onboard wireless gateway of train head or the tailstock, the
The offside of one onboard wireless gateway is the second onboard wireless gateway.First onboard wireless gateway and the work(of the second onboard wireless gateway
Can be identical in the present embodiment, regardless of primary and secondary.Optionally, the second onboard wireless gateway increase message control capitiform into second
Data message, step are similar to and S102, also carry out S103a described to the transmission of the first onboard wireless gateway with by heartbeat data line
Second data message, step are similar with S103b with above-mentioned S103a, will not be described here.
Fig. 9 is the structural representation of one data communication equipment of data communications method of the present invention and device embodiment.Above-mentioned by
First onboard wireless gateway or the second onboard wireless gateway execute above-mentioned S101～S103a, the data communications method of S103b can
To be executed by data communication equipment shown in Fig. 9.As shown in figure 9, realizing that the data communication equipment of the present embodiment includes：Receive mould
Block 901, processing module 902 and sending module 903.
Optionally, receiver module 901 is used for receiving the first data message that vehicle-mounted user sends；Receiver module 901 is also used
In the second data message for receiving the other side's onboard wireless gateway sent by heartbeat data line, sent out with earthward communication gate
Serve and state the second data message；Receiver module 901 is additionally operable to receive the other side's onboard wireless net sent by heartbeat data line
The 4th data message for closing, to send above-mentioned 4th data message to vehicle-mounted user.
Optionally, processing module 902 is used for adding the first data message on the first message control head, obtains the second datagram
Text, wherein, the device identification comprising the first onboard wireless gateway, message identification, wireless link identification in the first message control head
The index mark sent with multichannel.
Optionally, sending module 903 is used for earthward the 4th data message of communication gate transmission；Sending module 903 is also used
In to other side's onboard wireless gateway send the second data message so that above-mentioned other side's onboard wireless gateway earthward communication gate send out
Send data message；Sending module 903 is additionally operable to send the 4th data message to other side's onboard wireless gateway, so that above-mentioned other side's car
Earthward user sends datagram to carry radio network gateway.
By the technical scheme described in the present embodiment one, earthward targeted customer's train-installed user sends datagram
When, data message can be sent to by terrestrial user by the first onboard wireless gateway in train head or the tailstock, number
Second data can also be sent to by the heartbeat data line of the first onboard wireless gateway and the second onboard wireless gateway according to message
Gateway, can realize the train-installed user purpose that earthward targeted customer sends datagram by two kinds of circuits, so as to,
Even if a certain onboard wireless gateway of train head or the tailstock breaks down, data message can pass through another onboard wireless gateway
Data message is sent to ground target user.
Embodiment two
Embodiment two is that on the basis of embodiment one, further earthward user's vehicle-mounted user sends datagram
Also include herein below.Specifically, continue to use in the present embodiment.
Earthward user sends datagram for Fig. 4 data communications methods of the present invention and two vehicle-mounted user of device embodiment
Schematic flow sheet, Fig. 2 are that earthward user sends datagram for data communications method of the present invention and two vehicle-mounted user of device embodiment
The schematic diagram of text, Fig. 5 are data communications method of the present invention and two ground communication gateway of device embodiment earthward user's transmission number
Schematic flow sheet according to message.
As shown in figure 4, the embodiment also includes on the basis of S101～S103a, S103b in embodiment one：
S104：The second data message that the first onboard wireless gateway and/or the second onboard wireless gateway send is received, described
Head is controlled comprising first message in second data message, in the first message control head, includes the first onboard wireless gateway
Device identification, the index mark that sends of message identification, wireless link identification and multichannel；
Specifically, as shown in Fig. 2 car-ground radio gateway receives the first onboard wireless gateway and/or the second onboard wireless net
The second data message for sending is closed, and wherein, in second data message, head, first report is controlled comprising first message
In text control head, the device identification comprising the first onboard wireless gateway, message identification, wireless link identification and multichannel send
Index mark.
S105：Earthward user sends second data message.
Specifically, earthward user sends the second data message to car-ground radio gateway.
As shown in figure 5, before S105, also including：
S105’：Determine the device identification of the first onboard wireless gateway whether in ground communication gateway registration.
Specifically, the equipment mark in the message control head of the second data message for the first onboard wireless gateway being sent
Know or send to the second onboard wireless gateway and then send in radio network gateway through the second car logical to ground by heartbeat data line
Device identification in the message control head of the second data message of letter gateway, ground communication gateway judge setting in message control head
Standby identify whether to register.If unregistered, directly abandon；If registered, the second data message is sent to terrestrial user.
A kind of ground communication gateway judges whether the device identification in the message control retrogressing of the second data message is registered
Method be：Device identification is corresponding with car borne gateway, the first onboard wireless gateway and the second onboard wireless gateway on train
Corresponding two device identifications, device identification is consecutive odd and even number, as only one of which device identification is in ground communication
Gateway is registered, i.e., can find this device identification in local binding registration table in ground communication gateway side.If it is even
What several device identifications was carried out directly can search in local binding registration table；Then odd number device identification can be changed by conversion
For corresponding even number device identification, then whether there is in local binding registration table by corresponding even number device identification.
If can find in local binding registration table, then it is assumed that the device identification is registered, show that data message is by vehicle-mounted
Radio network gateway is transmitted, you can earthward user sends；If cannot find in local binding registration table, then it is assumed that this sets
Standby mark is not registered, and shows that data message is not transmitted by onboard wireless gateway, you can abandon.
If, the corresponding device identification of the first onboard wireless gateway in the present embodiment is even number, for example,
192.168.0.0, the corresponding device identification of the second onboard wireless gateway is 192.168.1.0.Then above-mentioned second data message
Message control head is added in the first onboard wireless gateway, so equipment in the message control head of above-mentioned second data message
192.168.0.0 is designated, and this device identification was registered in ground communication gateway side.When ground, communication gate passes through
Whether device identification identification data message is that registered onboard wireless gateway (includes corresponding with the even number device identification for registering
Odd number device identification, the corresponding onboard wireless gateway of this odd number device identification), and then whether recognize the data message that receives
From registered train.
Specifically, it is known that odd number device identification, then corresponding even number device identification can be calculated by the following method
Come：First, the odd number device identification of dotted decimal notation form is converted to Hexadecimal form；Then, by Hexadecimal form
Odd number device identification move to right 4, then subtract 1, obtain the even number device identification of Hexadecimal form；Finally, by hexadecimal
The even number device identification of form moves to left 4, is then converted into dotted decimal notation form.
Optionally, the second onboard wireless gateway increase message control capitiform into the second data message, ground communication net
Close the device identification controlled according to message in head, carry out verifying second data message according to the corresponding methods of above-mentioned S105 '
Device identification whether registered, will not be described here.
After S105, also include：
S105”：Device identification, message identification, wireless link identification and Duo Tong according to the first onboard wireless gateway
The index mark that road sends carries out duplicate removal process to second data message.
Specifically, after car-ground radio gateway sends first part of second data message to terrestrial user, to subsequently received
The second data message be no longer transmitted, but subsequently received the second data message is abandoned by duplicate removal process
Specifically, as the second data message is at least a, when first part of second data message is sent to vehicle-mounted user
Afterwards, needing to remove remaining second data message that may be present, i.e. car-ground radio gateway needs to enter the second data message
The process of row duplicate removal.
Optionally, the index mark that the multichannel in the message control head of per part of second data message sends is identical,
For the data message that the first onboard wireless gateway is sent after the second data gateway is sent, the multichannel in its message control head
Index mark is Jia 1 successively to process.
Optionally, by first part of second data message forwarding to terrestrial user after car-ground radio gateway is received, and this is recorded
The index mark that the multichannel of part data message sends, if the index mark that the multichannel of subsequently multiple data message sends
Less than or equal to the index mark that the multichannel sends, then abandon；Just forward more than the index mark that the multichannel sends.Its
In, in the data message of discarding, multichannel index mark identical is and the second data message identical data message；Multichannel
Index mark is defaulted as in the by car-ground radio gateway less than the data message of multichannel index mark in the second data message
Data message sending before two data messages, passing through duplicate removal process, so, car-ground radio gateway is also lost to which
Abandon.
Optionally, if not receiving data message in car-ground radio gateway N milliseconds (being defaulted as 1500 milliseconds), will note
The index mark that the multichannel of record sends resets.
Optionally, the index that multichannel sends identifies scope：0～65535, if greater than 65535, then it is zeroed again.
Optionally, the message control head of the second data message is added by the second data gateway, and ground communication gateway is to the
The index mark that the device identification of two onboard wireless gateways, message identification, wireless link identification and multichannel send is to described the
The method that two data messages carry out duplicate removal process is same as mentioned above, will not be described here.
In the present embodiment, onboard wireless gateway adds message control head, ground communication net to the data message for needing transmission
Close to make a distinction by the device identification in message control head whether data message is received from chartered equipment
Mark, the data message of nonregistered (NR) device identification abandoned, further, the message control added by onboard wireless gateway
Head content processed carries out duplicate removal process to the data message for being sent to terrestrial user, so that the data message that vehicle-mounted user sends is accurate
True and unduplicated send to ground target user.
Embodiment three
Fig. 6 is that data communications method of the present invention and three terrestrial user of device embodiment pass through the first onboard wireless gateway to car
The schematic flow sheet that user sends datagram is carried, Fig. 7 is three terrestrial user of data communications method of the present invention and device embodiment
To the schematic diagram that vehicle-mounted user sends datagram, Fig. 8 is three terrestrial user of data communications method of the present invention and device embodiment
The schematic flow sheet sent datagram to vehicle-mounted user by the second onboard wireless gateway, Figure 10 are data communication side of the present invention
The structural representation of three data communication equipment of method and device embodiment.Specifically, embodiment one is continued to use in the present embodiment and is implemented
Assume done in example two.
As shown in fig. 6, the embodiment includes：
S601：Receive the 3rd data message that terrestrial user sends；
Specifically, as shown in fig. 7, gateway station is by receiving the 3rd data message that vehicle-mounted user sends.
Optionally, terrestrial user sends at least two article the 3rd data message to ground communication gateway.
Optionally, the first onboard wireless gateway is at least two to the wireless link of vehicle-mounted user side.Specifically, in this reality
Apply in example, the first onboard wireless gateway is set to as a example by two to the wireless link of vehicle-mounted user side.
S602：Add the first message control head to the 3rd data message, obtain the 4th data message, second report
Text control head includes：The rope that the device identification of the vehicle-mounted radio network gateway of target, message identification, wireless link identification and multichannel send
Tendering is known；Wherein, the device identification of the vehicle-mounted radio network gateway of the target is the device identification or second of the first onboard wireless gateway
The device identification of onboard wireless gateway.
Specifically, as shown in fig. 7, after ground communication gateway receives the 3rd data message of terrestrial user transmission, to the
Three data messages add the second message control head, and message control head is used for the first onboard wireless gateway authentication and received data report
Whether the ground communication gateway of text is registered, and message control head can be also used for vehicle-mounted first radio network gateway carries out identical number
Process according to the duplicate removal of message.
Optionally, with the first data message, the second data message includes that the effect of content is identical, and related content exists
Described in embodiment one, will not be described here.
S603：Receive the 4th data message that ground communication gateway sends.
Optionally, as shown in fig. 7, the first onboard wireless gateway receives the 4th datagram that is come by the transmission of ground communication gateway
Text, then execute S604～S606.
In addition, optional, the second onboard wireless gateway receives the 4th data message come by the transmission of ground communication gateway, then
Execute S804 '～S806.
S604：Determine the device identification of the vehicle-mounted radio network gateway of the target whether equipment mark with the first onboard wireless gateway
Sensible same.S605 is executed if identical；Differ, then execute, S606.
Specifically, whether the first onboard wireless gateway controls in head device identification with the by the message of the 4th data message
The corresponding device identification of one onboard wireless gateway is identical.
S605：The 4th data message is sent to the vehicle-mounted user.
Optionally, device identification equipment corresponding with the first onboard wireless gateway in the message control head of the 4th data message
Mark is identical, shows that the first onboard wireless gateway is the vehicle-mounted radio network gateway of target of ground communication gateway, and terrestrial user will be sent out
The data message for sending is directed to the vehicle-mounted user acted on behalf of by the first onboard wireless gateway, then the first onboard wireless gateway is by least
Two wireless links transmit the 4th data message to the vehicle-mounted user of target.
S606：The 4th data message is sent to the second onboard wireless gateway.
Optionally, device identification equipment corresponding with the first onboard wireless gateway in the message control head of the 4th data message
Mark is different, shows that the second onboard wireless gateway is the vehicle-mounted radio network gateway of target of ground communication gateway, and terrestrial user will be sent out
The data message for sending is directed to the vehicle-mounted user acted on behalf of by the second onboard wireless gateway, then the first onboard wireless gateway passes through heart beating
Data wire sends the 4th data message to the second onboard wireless gateway.So as to the 4th data message is by the second onboard wireless gateway
It is sent to vehicle-mounted user.
As shown in figure 8, the present embodiment also includes：
Wherein S804 '～S806 is carried out on the basis of S601, S602 and S603 in embodiment three.
Optionally, the second onboard wireless gateway receives the 4th data message come by the transmission of ground communication gateway.
S804’：According to the mapping relations of wireless link identification, the link identification is changed.
Optionally, wireless link identification, wherein described 4th data are also included in the message control head of the 4th data message
Message message control head in wireless link identification need according to the mapping relations of the wireless link identification modify for
After the wireless link identification corresponding to the vehicle-mounted radio network gateway of place target, the vehicle-mounted radio network gateway of target just can be to the described 4th
Data message is transmitted.
Specifically, in the present embodiment, if：
Each onboard wireless gateway corresponds to two wireless links, the first onboard wireless gateway and the second onboard wireless net respectively
Close the wireless link identification sent datagram to vehicle-mounted user side and be 1,2, car-ground radio gateway is to the first onboard wireless net
Close and/or the wireless link identification that sends datagram of the second onboard wireless gateway is：1st, 2,3 and 4.
Then the mapping relations of corresponding wireless link identification are referred to：The 3rd data message is added in car-ground radio gateway
During message control head, if the corresponding first onboard wireless gateway of device identification, wireless link identification is 1,2；If device identification is corresponding
Then wireless link identification is 3,4 to second onboard wireless gateway.
After the second onboard wireless gateway receives four data message, then closed according to the mapping of wireless link identification
System, is revised as 1,2 to the wireless link identification in the message control head of the 4th data message, in order to pass through the second onboard wireless
Gateway transmits the 4th data message to the wireless link of vehicle-mounted user side.
S804：Determine the device identification of the vehicle-mounted radio network gateway of the target whether equipment mark with the second onboard wireless gateway
Sensible same.S805 is executed if identical；Differ, then execute S806.
Specifically, whether the second onboard wireless gateway controls in head device identification with the by the message of the 4th data message
The corresponding device identification of two onboard wireless gateways is identical.
S805：The 4th data message is sent to the vehicle-mounted user.
Optionally, device identification equipment corresponding with the second onboard wireless gateway in the message control head of the 4th data message
Mark is identical, shows that the second onboard wireless gateway is the vehicle-mounted radio network gateway of target of ground communication gateway, and terrestrial user will be sent out
The data message for sending is directed to the vehicle-mounted user acted on behalf of by the second onboard wireless gateway, then the second onboard wireless gateway is by least
Two wireless links transmit the 4th data message to the vehicle-mounted user of target.
S806：The 4th data message is sent to the first onboard wireless gateway.
Optionally, device identification equipment corresponding with the second onboard wireless gateway in the message control head of the 4th data message
Mark is different, shows that the first onboard wireless gateway is the vehicle-mounted radio network gateway of target of ground communication gateway, and terrestrial user will be sent out
The data message for sending is directed to the vehicle-mounted user acted on behalf of by the first onboard wireless gateway, then the second onboard wireless gateway passes through heart beating
Data wire sends the 4th data message to the first onboard wireless gateway.So as to the 4th data message is by the first onboard wireless gateway
It is sent to vehicle-mounted user.
Optionally, after S606 or S806, also include：The 4th data message for receiving is carried out at duplicate removal
Reason.
Specifically, earthward user sends first part of the 4th data for the first onboard wireless gateway or the second onboard wireless gateway
After message, the first onboard wireless gateway or the second onboard wireless gateway car-ground radio gateway, to the 4th subsequently received data
Message is no longer transmitted, but the 4th subsequently received data message is abandoned by duplicate removal process.Due to first vehicle-mounted
Radio network gateway or the second onboard wireless gateway are processed with terrestrial wireless gateway to the second datagram to the duplicate removal of the 4th data message
The duplicate removal processing procedure of text is identical, will not be described here.
Figure 10 is the structural representation of three data communication equipment of data communications method of the present invention and device embodiment.Above-mentioned by
Ground communication gateway is executed the data communications method of above-mentioned S601～S602 and can be executed by data communication equipment shown in Figure 10.
As shown in Figure 10, realize that the data communication equipment of the present embodiment includes：Receiver module 1001, processing module 1002 and sending module
1003.
Optionally, receiver module 1001 is used for the 3rd data message for receiving terrestrial user transmission；Receiver module 1001 is also
For receiving the second data message by the first onboard wireless gateway or the second onboard wireless gateway, sent with earthward user
Above-mentioned second data message.
Optionally, processing module 1002 is used for adding the 3rd data message on the second message control head, obtains the 4th data
Message, wherein, the device identification comprising purpose onboard wireless gateway, message identification, radio chains road sign in the second message control head
Know and the index of multichannel transmission is identified.
Optionally, sending module 1003 is used for earthward the second data message of user's transmission；Sending module 1003 is additionally operable to
The 4th data message is sent to the first onboard wireless gateway or the second onboard wireless gateway.
By the present embodiment three, terrestrial user can to the vehicle-mounted family of train send datagram when, can be by being in
Data message is sent to vehicle-mounted user by the first onboard wireless gateway of train head or the tailstock, and data message can also pass through
The heartbeat data line of the first onboard wireless gateway and the second onboard wireless gateway sends the second data gateway to, by two kinds of circuits
The purpose that terrestrial user sends datagram can be realized to train-installed targeted customer, so as to even if train head or car
The a certain onboard wireless gateway of tail breaks down, and data message can be sent to by data message by another onboard wireless gateway
Train-installed targeted customer.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (22)
1. a kind of data communications method, it is characterised in that include：
Receive the first data message that vehicle-mounted user sends；
Add the first message control head to first data message, obtain the second data message, wherein, the first message control
The index that the device identification comprising the first onboard wireless gateway, message identification, wireless link identification and multichannel send in head processed
Mark；
Earthward communication gate sends second data message；
Second data message is sent to the second onboard wireless gateway, so that the second onboard wireless gateway is to the ground
Communication gate sends second data message.
2. method according to claim 1, it is characterised in that described send second number to the second onboard wireless gateway
According to message, including：
By the heartbeat data line between the first onboard wireless gateway and the second onboard wireless gateway to described second
Onboard wireless gateway sends second data message.
3. method according to claim 1 and 2, it is characterised in that also include：
Receive the 4th data message that ground communication gateway sends；
Determine whether the device identification of the vehicle-mounted radio network gateway of target is identical with the device identification of the first onboard wireless gateway；
If the device identification of the vehicle-mounted radio network gateway of the target is identical with the device identification of the first onboard wireless gateway, to
The vehicle-mounted user sends the 4th data message.
4. method according to claim 3, it is characterised in that also include：
If the device identification of the vehicle-mounted radio network gateway of the target is differed with the device identification of the first onboard wireless gateway,
The 4th data message is sent to the second onboard wireless gateway.
5. method according to claim 1, it is characterised in that the earthward communication gate sends second datagram
Text, including：
By at least two wireless links between the first onboard wireless gateway and the ground communication gateway to described
Face communication gate sends second data message.
6. method according to claim 5, it is characterised in that described by the first onboard wireless gateway with described
Before at least two wireless links between the communication gate of face send second data message to the ground communication gateway, also
Including：
To the log-on message that the ground communication gateway sends the first onboard wireless gateway, in the log-on message, include institute
State between the device identification of the first onboard wireless gateway, and the first onboard wireless gateway and the ground communication gateway
The mark of at least two wireless links.
7. method according to claim 3, it is characterised in that described send the 4th datagram to the vehicle-mounted user
After text, also include：
Duplicate removal process is carried out to the 4th data message for receiving.
8. a kind of data communications method, it is characterised in that include：
The second data message of the first onboard wireless gateway transmission is received, wherein, comprising described the in second data message
One message controls head, the device identification comprising the first onboard wireless gateway in first message control head, message identification, wireless
The index mark that link identification and multichannel send；
Earthward communication gate sends second data message.
9. method according to claim 8, it is characterised in that also include：
The 4th data message that the ground communication gateway sends is received, in the 4th data message, includes target onboard wireless
The device identification of gateway；
Determine whether the device identification of the vehicle-mounted radio network gateway of target is identical with the device identification of the second onboard wireless gateway；
If the device identification of the vehicle-mounted radio network gateway of the target is identical with the device identification of the second onboard wireless gateway, to
The second onboard wireless gateway sends the 4th data message.
10. method according to claim 8, it is characterised in that also include：
If the device identification of the vehicle-mounted radio network gateway of the target is differed with the device identification of the second onboard wireless gateway,
The 4th data message is sent to the first onboard wireless gateway.
11. methods according to claim 9, it is characterised in that also include in the 4th data message：Radio chains road sign
Know；
Before the 4th data message to the second onboard wireless gateway transmission, also include：
According to the mapping relations of wireless link identification, the link identification is changed.
12. methods according to claim 10, it is characterised in that also include in the 4th data message：Wireless link
Mark；
Before the 4th data message to the first onboard wireless gateway transmission, also include：
According to the mapping relations of wireless link identification, the link identification is changed.
13. methods according to claim 8, it is characterised in that the earthward communication gate sends second data
Message, including：
By at least two wireless links between the second onboard wireless gateway and the ground communication gateway to described
Face communication gate sends second data message.
14. methods according to claim 13, it is characterised in that described by the second onboard wireless gateway with described
Before at least two wireless links between ground communication gateway send second data message to the ground communication gateway,
Also include：
To the log-on message that the ground communication gateway sends the second onboard wireless gateway, in the log-on message, include institute
State between the device identification of the second onboard wireless gateway, and the second onboard wireless gateway and the ground communication gateway
The mark of at least two wireless links.
15. a kind of data communications methods, it is characterised in that include：
Receive the second data message that the first onboard wireless gateway and/or the second onboard wireless gateway send, second data
Head, the equipment mark comprising the first onboard wireless gateway in the first message control head are controlled comprising first message in message
The index mark that knowledge, message identification, wireless link identification and multichannel send；
Earthward user sends second data message.
16. methods according to claim 15, it is characterised in that the earthward user sends second data message
Afterwards, also include：
The rope that device identification, message identification, wireless link identification according to the first onboard wireless gateway and multichannel send
Tendering is known carries out duplicate removal process to second data message.
17. methods according to claim 15, it is characterised in that the earthward user sends second data message
Before, also include：
Determine the device identification of the first onboard wireless gateway whether in ground communication gateway registration.
18. methods according to claim 17, it is characterised in that the equipment of the determination the first onboard wireless gateway
Identify whether, before ground communication gateway registration, also to include：
According to device identification mapping relations, the device identification of the first onboard wireless gateway is mapped.
19. methods according to any one of claim 15-18, it is characterised in that also include：
Receive the 3rd data message that the terrestrial user sends；
Add the second message control head to the 3rd data message, obtain the 4th data message；
The second message control head includes：The device identification of the vehicle-mounted radio network gateway of target, message identification, wireless link identification and
The index mark that multichannel sends；
Wherein, the device identification of the vehicle-mounted radio network gateway of the target is the device identification of the first onboard wireless gateway or second vehicle-mounted
The device identification of radio network gateway.
20. a kind of data communication equipments, it is characterised in that include：
Receiver module, for receiving the first data message that vehicle-mounted user sends；
Processing module, for adding the first message control head to first data message, obtains the second data message, wherein,
Device identification comprising the first onboard wireless gateway in first message control head, message identification, wireless link identification and many
The index mark that passage sends；
Sending module, sends second data message for earthward communication gate；
The sending module, is additionally operable to send second data message to the second onboard wireless gateway, so that second car
Carry radio network gateway second data message is sent to the ground communication gateway.
21. a kind of data communication equipments, it is characterised in that include：
Receiver module, for receiving the second data message that the first onboard wireless gateway sends, wherein, second data message
In control head, the device identification comprising the first onboard wireless gateway, message in first message control head comprising the first message
The index mark that mark, wireless link identification and multichannel send；
Sending module, sends second data message for earthward communication gate.
22. a kind of data communication equipments, it is characterised in that include：
Receiver module, for receiving the second data message that the first onboard wireless gateway and/or the second onboard wireless gateway send,
Head is controlled comprising the first message in second data message, in the first message control head, includes first onboard wireless
The index mark that the device identification of gateway and/or the second onboard wireless gateway, message identification, wireless link identification and multichannel send
Know；
The receiver module, is additionally operable to receive the 3rd data message that terrestrial user sends；
Sending module, for sending second data message to the terrestrial user.
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