CN106302018A - Train-ground communication method and EMRM - Google Patents

Train-ground communication method and EMRM Download PDF

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Publication number
CN106302018A
CN106302018A CN201610685053.0A CN201610685053A CN106302018A CN 106302018 A CN106302018 A CN 106302018A CN 201610685053 A CN201610685053 A CN 201610685053A CN 106302018 A CN106302018 A CN 106302018A
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emrm
ownership place
mentioned
msc
connection
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CN106302018B (en
Inventor
于继良
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BEIJING JINHONG XIDIAN INFORMATION TECHNOLOGY Co Ltd
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BEIJING JINHONG XIDIAN INFORMATION TECHNOLOGY Co Ltd
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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
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
    • B61L15/0018—Communication with or on the vehicle or vehicle train
    • B61L15/0027—Radio-based, e.g. using GSM-R
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/143—Termination or inactivation of sessions, e.g. event-controlled end of session
    • H04L67/145—Termination or inactivation of sessions, e.g. event-controlled end of session avoiding end of session, e.g. keep-alive, heartbeats, resumption message or wake-up for inactive or interrupted session

Abstract

The present invention provides a kind of train-ground communication method and EMRM.The train-ground communication method that the present invention provides, it is applicable to the disaster tolerance system that communicates, communication disaster tolerance system includes EMRM and the MSC of at least two ownership place, and each ownership place includes at least two message forwarder and at least two gateway device, and the number of message forwarder is identical with the number of gateway device；Said method includes: be connected when first message forwarder of EMRM with the MSC of the first ownership place at least two ownership place, the first ownership place is successfully established, and when succeeding in registration on the first gateway device that EMRM is in the disaster tolerance system that communicates, EMRM sends link detecting request to the first gateway device；EMRM judges whether receive the response message that the first gateway device sends in preset duration；If it is not, then EMRM determines current communications link disconnection.Train-ground communication method that the present invention provides and EMRM, can judge current communications link whether disconnection accurately and in time.

Description

Train-ground communication method and EMRM
Technical field
The present invention relates to communication technology, particularly relate to a kind of train-ground communication method and EMRM.
Background technology
At present, China's Qinghai-Tibet Railway Golmud-Lhasa section uses Incremental Train Control System ITCS (Incremental Train Control System) control train operation.ITCS uses mutually continuous vehicle-ground wireless communication, makees with cab signal Main running signal for train operation controls train operation.ITCS system is by monitoring train operation, when situation changes to department Machine provides reports to the police, and implements braking when required by train, thus ensures traffic safety.
In ITCS system, train-installed computer OBC (On Board Computer) and radio block center, station The data exchange of RBC (Rodio Blocking Center) is by railway digital mobile communication system GSM-R (Global System For Communication-raliway) complete.Specifically, GSM-R network is disposed respectively in Xining and Lhasa One moving exchanging center MSC (Mobile Switch Center), each MSC connects two message forwarders, and MSC The service number configured for all of message forwarder is DIAL-X.So, when OBC Yu RBC sets up wireless link, OBC Control one fixed number (DIAL-X) of vehicle-mounted mobile wireless module MRM (Mobile Radio Module) device call, when MSC receive MRM to the dial request of DIAL-X after, dial request is assigned to close together the disappearing being connected with this MSC by MSC Breath transponder, and message forwarder is connected by communication network with RBC.So, wireless link is set up when OBC and message forwarder After, mutually continuous vehicle-ground wireless communication between OBC and RBC can be realized.
When using this land mobile communication system to carry out train-ground communication, the wireless link call drop when between OBC and message forwarder After, OBC can control MRM and re-start dialing link setup, if detecting that coupled message close together turns now by MSC Sending out device fault, dial request can be assigned to another message forwarder connected by MSC；When MSC detects that this message turns After sending out device also fault, dial request can be transferred to strange land MSC by MSC, by strange land MSC process.But, under practical situation, There is the problem that cannot accurately judge to the link failure of message forwarder in MSC, this will result in after wireless link chain rupture can not and Shi Huifu, affects the safe operation of train.
Summary of the invention
The present invention provides a kind of train-ground communication method and EMRM, and to solve in existing train-ground communication method, MSC is to message There is the problem that cannot accurately judge in the link failure of transponder.
First aspect present invention provides a kind of train-ground communication method, it is adaptable to communication disaster tolerance system, above-mentioned communication disaster tolerance system System includes EMRM and the MSC of at least two ownership place being connected with above-mentioned EMRM, and each ownership place includes that at least two message turns Sending out device and at least two gateway device, the number of above-mentioned message forwarder is identical with the number of above-mentioned gateway device；The present invention carries The train-ground communication method of confession includes:
When the MSC of the first ownership place in above-mentioned EMRM and above-mentioned at least two ownership place, the of above-mentioned first ownership place One message forwarder is successfully established in connection, and the first gateway device that above-mentioned EMRM is in above-mentioned communication disaster tolerance system and registers During merit, above-mentioned EMRM sends link detecting request to above-mentioned first gateway device；
Above-mentioned EMRM judges whether receive the response message that above-mentioned first gateway device sends in preset duration；
If it is not, the most above-mentioned EMRM determines current communications link disconnection.
Further, above-mentioned EMRM includes the first wireless communication module and the second wireless communication module, above-mentioned first wireless The corresponding first main dial request of communication module, the corresponding second main dial request of above-mentioned second wireless communication module, above-mentioned EMRM with The MSC of the first ownership place in above-mentioned at least two ownership place, the first message forwarder of above-mentioned first ownership place are successfully established Connect, specifically include:
Above-mentioned EMRM is by above-mentioned first main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership place First message forwarder sets up the first connection, and above-mentioned first connection establishment success；Above-mentioned first main dial request and above-mentioned the One message forwarder is corresponding；
After the most above-mentioned EMRM determines current communications link disconnection, said method also includes:
Above-mentioned EMRM is by above-mentioned second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership place Second message forwarder sets up the second connection；Wherein, above-mentioned second main dial request is corresponding with above-mentioned second message forwarder.
Further, above-mentioned first wireless communication module also corresponding first is for dial request, and the above-mentioned first standby dialing please Ask corresponding with the 3rd message forwarder of the second ownership place in above-mentioned at least two ownership place；
If above-mentioned EMRM is by above-mentioned first main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership place The first message forwarder when setting up the first connection failure, said method also includes:
Above-mentioned EMRM forwards with the MSC of above-mentioned second ownership place, above-mentioned 3rd message for dial request by above-mentioned first The 3rd connection set up by device, and determines whether above-mentioned 3rd connection is successfully established；
The most above-mentioned EMRM arbitrary gateway device in above-mentioned communication disaster tolerance system initiates registration request, so that on State successful registration on the EMRM the second gateway device in above-mentioned communication disaster tolerance system.
If it is not, above-mentioned EMRM is by above-mentioned second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership Second message forwarder on ground sets up the second connection.
Further, above-mentioned EMRM by above-mentioned first for dial request and the MSC of above-mentioned second ownership place, the above-mentioned 3rd Before message forwarder sets up the 3rd connection, said method also includes:
Above-mentioned EMRM continues through above-mentioned first main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership First message forwarder on ground re-establishes the first connection, and records current first and redial number of times；
Above-mentioned EMRM judges that whether above-mentioned first redial number of times more than the first predetermined threshold value；
The most above-mentioned EMRM by above-mentioned first for dial request and the MSC of above-mentioned second ownership place, above-mentioned 3rd message The 3rd connection set up by transponder.
Further, if during above-mentioned 3rd connection establishment failure, said method also includes:
Above-mentioned EMRM continues through above-mentioned first for dial request and the MSC of above-mentioned second ownership place, above-mentioned 3rd message Transponder re-establishes the 3rd connection, and records current second and redial number of times；
Above-mentioned EMRM judges that whether above-mentioned second redial number of times more than the second predetermined threshold value；
The most above-mentioned EMRM by above-mentioned second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first return Second message forwarder in possession sets up the second connection.
Further, above-mentioned second wireless communication module also corresponding second is for dial request, and above-mentioned second for dial request Corresponding with the 4th message forwarder of the second ownership place in above-mentioned at least two ownership place；
If above-mentioned EMRM is by above-mentioned second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership place The second message forwarder when setting up the second connection failure, said method also includes:
Above-mentioned EMRM forwards with the MSC of above-mentioned second ownership place, above-mentioned 4th message for dial request by above-mentioned second The 4th connection set up by device, and determines whether above-mentioned 4th connection is successfully established；
The most above-mentioned EMRM arbitrary gateway device in above-mentioned communication disaster tolerance system initiates registration request, so that on State and succeed in registration on the EMRM the 3rd gateway device in above-mentioned communication disaster tolerance system.
Further, above-mentioned EMRM by above-mentioned second for dial request and the MSC of above-mentioned second ownership place, the above-mentioned 4th Before message forwarder sets up the 4th connection, said method also includes:
Above-mentioned EMRM continues through above-mentioned second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership Second message forwarder on ground re-establishes the second connection, and records current the 3rd and redial number of times；
Above-mentioned EMRM judges that whether the above-mentioned 3rd redial number of times more than the 3rd predetermined threshold value；
The most above-mentioned EMRM by above-mentioned second for dial request and above-mentioned second ownership place MSC, the above-mentioned 4th disappear The 4th connection set up by breath transponder.
Second aspect present invention provides a kind of EMRM, it is adaptable to communication disaster tolerance system, above-mentioned communication disaster tolerance system includes Stating EMRM and the MSC of at least two ownership place being connected with above-mentioned EMRM, each ownership place includes at least two message forwarder With at least two gateway device, the number of above-mentioned message forwarder is identical with the number of above-mentioned gateway device；Above-mentioned EMRM includes Sending module, judge module, determine module；
Above-mentioned sending module, for ought above-mentioned determine module determine above-mentioned EMRM and above-mentioned at least two ownership place in the The MSC of one ownership place, the first message forwarder of above-mentioned first ownership place are successfully established connection, and above-mentioned EMRM is in above-mentioned communication When succeeding in registration on the first gateway device in disaster tolerance system, send link detecting request to above-mentioned first gateway device；
Above-mentioned judge module, for judging whether receive the response that above-mentioned first gateway device sends in preset duration Message；
Above-mentioned determine module, for judging to be not received by above-mentioned first gateway in preset duration when above-mentioned judge module During the response message that equipment sends, confirm current communications link disconnection.
Further, above-mentioned EMRM also includes the first wireless communication module and the second wireless communication module, above-mentioned first nothing The corresponding first main dial request of line communication module, the corresponding second main dial request of above-mentioned second wireless communication module；Wherein, above-mentioned First main dial request is corresponding with above-mentioned first message forwarder；Above-mentioned second main dial request and above-mentioned second message forwarder Corresponding；
Above-mentioned first wireless communication module, for by the MSC of above-mentioned first main dial request and above-mentioned first ownership place, First message forwarder of above-mentioned first ownership place sets up the first connection, and above-mentioned first connection establishment success；
Above-mentioned second wireless communication module, for above-mentioned determine that module determines current communications link disconnection after, pass through Above-mentioned second main dial request and the MSC of above-mentioned first ownership place, the second message forwarder of above-mentioned first ownership place set up the Two connect.
Further, above-mentioned first wireless communication module also corresponding first is for dial request, and the above-mentioned first standby dialing please Ask corresponding with the 3rd message forwarder of the second ownership place in above-mentioned at least two ownership place；
Above-mentioned first wireless communication module, being additionally operable to please by above-mentioned first main dialing at above-mentioned first wireless communication module When asking the first message forwarder with the MSC of above-mentioned first ownership place, above-mentioned first ownership place to set up the first connection failure, pass through Above-mentioned first sets up the 3rd even for dial request and the MSC of above-mentioned second ownership place, the 3rd message forwarder of the second ownership place Connect,
Above-mentioned determine module, be additionally operable to determine that the above-mentioned 3rd connects and whether be successfully established；
Above-mentioned sending module, be additionally operable to above-mentioned determine that module determines above-mentioned 3rd connection establishment success time, to above-mentioned logical Letter disaster tolerance system in arbitrary gateway device initiate registration request so that above-mentioned EMRM in above-mentioned communication disaster tolerance system second Successful registration on gateway device；
Above-mentioned second wireless communication module, be additionally operable to above-mentioned determine that module determines above-mentioned 3rd connection establishment failure time, Built by the second message forwarder of above-mentioned second main dial request with the MSC of above-mentioned first ownership place, above-mentioned first ownership place Vertical second connection.
Further, above-mentioned first wireless communication module, be additionally operable to by above-mentioned first for dial request and above-mentioned the The MSC of two ownership place, above-mentioned 3rd message forwarder set up the 3rd connection before, continue through above-mentioned first main dial request with The MSC of above-mentioned first ownership place, the first message forwarder of above-mentioned first ownership place re-establish the first connection, and record current First redial number of times；
Above-mentioned judge module, is additionally operable to judge that whether above-mentioned first redial number of times more than the first predetermined threshold value；
Above-mentioned first wireless communication module, is additionally operable to judge that above-mentioned first redials number of times more than first at above-mentioned judge module During predetermined threshold value, set up with the MSC of above-mentioned second ownership place, above-mentioned 3rd message forwarder for dial request by above-mentioned first 3rd connects.
Further, above-mentioned first wireless communication module, it is additionally operable to determine that module determines that above-mentioned 3rd connection is built above-mentioned When standing unsuccessfully, continue through above-mentioned first for dial request and the MSC of above-mentioned second ownership place, above-mentioned 3rd message forwarder weight Newly set up the 3rd connection, and record current second and redial number of times；
Above-mentioned judge module, is additionally operable to judge that whether above-mentioned second redial number of times more than the second predetermined threshold value；
Above-mentioned second wireless communication module, is additionally operable to judge that above-mentioned second redials number of times more than second at above-mentioned judge module During predetermined threshold value, by above-mentioned second main dial request and the MSC of above-mentioned first ownership place, the second of above-mentioned first ownership place disappear The second connection set up by breath transponder.
Further, above-mentioned second wireless communication module also corresponding second is for dial request, and above-mentioned second for dial request Corresponding with the 4th message forwarder of the second ownership place in above-mentioned at least two ownership place；
Above-mentioned second wireless communication module, being additionally operable to please by above-mentioned second main dialing at above-mentioned second wireless communication module When asking the second message forwarder with the MSC of above-mentioned first ownership place, above-mentioned first ownership place to set up the second connection failure, pass through Above-mentioned second sets up the 4th for dial request be connected with the MSC of above-mentioned second ownership place, above-mentioned 4th message forwarder；
Above-mentioned determine module, be additionally operable to determine that the above-mentioned 4th connects and whether be successfully established；
Above-mentioned sending module, be additionally operable to above-mentioned determine that module determines above-mentioned 4th connection establishment success time, to above-mentioned logical Letter disaster tolerance system in arbitrary gateway device initiate registration request so that above-mentioned EMRM in above-mentioned communication disaster tolerance system the 3rd Succeed in registration on gateway device.
Further, above-mentioned second wireless communication module be additionally operable to by above-mentioned second for dial request and above-mentioned second Before the MSC of ownership place, above-mentioned 4th message forwarder set up the 4th connection, continue through above-mentioned second main dial request with upper State the MSC of the first ownership place, the second message forwarder of above-mentioned first ownership place re-establishes the second connection, and records current 3rd redials number of times；
Above-mentioned judge module, is additionally operable to judge that whether the above-mentioned 3rd redial number of times more than the 3rd predetermined threshold value；
Above-mentioned second wireless communication module, is additionally operable to judge that the above-mentioned 3rd redials number of times more than the 3rd at above-mentioned judge module During predetermined threshold value, set up with the MSC of above-mentioned second ownership place, above-mentioned 4th message forwarder for dial request by above-mentioned second 4th connects.
The train-ground communication method of present invention offer and EMRM, when the first ownership place in EMRM with at least two ownership place MSC, the first message forwarder of above-mentioned first ownership place are successfully established connection, and above-mentioned EMRM in communication disaster tolerance system the When succeeding in registration on one gateway device, above-mentioned EMRM sends link detecting request to above-mentioned first gateway device；And judge in advance If whether receiving the response message that above-mentioned first gateway device sends in duration；If it is not, the most above-mentioned EMRM determines present communications Link disconnection.So, owing to above-mentioned preset duration is the shortest, therefore, the train-ground communication method of present invention offer and EMRM, can be accurate Judge current communications link whether fault really, in time, and then can re-establish logical in time after current communications link fault Letter link, it is ensured that the safe operation of train.
Accompanying drawing explanation
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 In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is that the present invention communicates the schematic diagram of disaster tolerance system embodiment one；
Fig. 2 is the flow chart of train-ground communication embodiment of the method one of the present invention；
Fig. 3 is the flow chart of train-ground communication embodiment of the method two of the present invention；
Fig. 4 is the flow chart of train-ground communication embodiment of the method three of the present invention；
Fig. 5 is the flow chart of train-ground communication embodiment of the method four of the present invention；
Fig. 6 is the flow chart of train-ground communication embodiment of the method five of the present invention；
Fig. 7 is the flow chart of train-ground communication embodiment of the method six of the present invention；
Fig. 8 is the flow chart of train-ground communication embodiment of the method seven of the present invention；
Fig. 9 is the structural representation of EMRM embodiment one of the present invention；
Figure 10 is the structural representation of EMRM embodiment two of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
The train-ground communication method of present invention offer and EMRM, to solve in existing train-ground communication method, message is turned by MSC There is the problem that cannot accurately judge in the link failure sending out device.
The train-ground communication method that the present invention provides, can be applicable to the communication between train and station.Optionally, the present invention carries The train-ground communication method of confession, goes for communicating in disaster tolerance system, and this system includes enhancement mode mobile wireless module EMRM (Enhanced Mobile Radio Module) and the mobile switching centre of at least two ownership place being connected with above-mentioned EMRM MSC (Mobile Switch Center), each ownership place includes at least two message forwarder and at least two gateway device, The number of message forwarder is identical with the number of above-mentioned gateway device.
Specifically, Fig. 1 is that the present invention communicates the schematic diagram of disaster tolerance system embodiment one.As it is shown in figure 1, the present embodiment provides Communication disaster tolerance system, including EMRM and the MSC of two ownership place that is connected with above-mentioned EMRM, above-mentioned two MSC belongs to respectively In Xining and Lhasa, in the present embodiment, the MSC belonging to Xining is expressed as Xining MSC, the MSC belonging to Lhasa is represented For Lhasa MSC, wherein, it is provided with two message forwarder Router-A and Router-being connected with Xining MSC within the border in Xining B and two gateway device GN-A and GN-B；Two message forwarders being connected with Lhasa MSC it are provided with within the border in Lhasa Router-C and Router-D and two gateway device GN-C and GN-D.
With specific embodiment, technical scheme is described in detail below.These concrete enforcements below Example can be combined with each other, and may repeat no more in some embodiment for same or analogous concept or process.
It should be noted that term " first " in description and claims of this specification and accompanying drawing, " second ", " the 3rd ", " the 4th " etc. are for distinguishing similar object, without being used for describing specific order or precedence.Should manage Solving, such use can be exchanged in appropriate circumstances.
Fig. 2 is the flow chart of train-ground communication embodiment of the method one of the present invention.Refer to Fig. 2, the car ground that the present embodiment provides Communication means, including:
S101, as EMRM and the MSC of the first ownership place at least two ownership place, the first of above-mentioned first ownership place disappear Breath transponder is successfully established in connection, and the first gateway device that above-mentioned EMRM is in above-mentioned communication disaster tolerance system and succeeds in registration Time, EMRM sends link detecting request to the first gateway device.
In this step, for example, it may be EMRM and the MSC in Xining, the message forwarder Router-A in Xining are successfully established Connect, and EMRM succeeds in registration on the gateway device GN-B in Xining, now, sets up transmission between EMRM and gateway device GN-B Tunnel, the EMRM gateway device GN-B to Xining sends link detecting request, and the first ownership place the most now is Xining, and first The MSC of ownership place is Xining MSC, and the first gateway device is the gateway device GN-B in Xining.Certainly, in this step, also Can be that EMRM and the MSC of Lhasa, the message forwarder Router-C of Lhasa are successfully established and are connected, and above-mentioned EMRM is in Xining Succeeding in registration on gateway device GN-A, now, EMRM and gateway device GN-A sets up transmission tunnel, and EMRM is to the gateway in Xining Equipment GN-A sends link detecting request, and the first ownership place the most now is Lhasa, and the MSC of the first ownership place is Lhasa MSC, the first gateway device is the gateway device GN-A in Xining..
It is to say, in this step, the first ownership place can refer to Xining, it is also possible to refers to Lhasa.Correspondingly, when the first ownership When ground is Xining, the second ownership place is just for Lhasa.Can be successfully established, with EMRM, the ownership place being connected, i.e. it is to say, every Can be described as the first ownership place.Turn additionally, the first message forwarder of the first ownership place can be two message in this ownership place Send out any one in device.The first gateway device in disaster tolerance system that communicates can be then any one in communication disaster tolerance system The gateway device that EMRM can succeed in registration；According to above-mentioned institute illustrated example, this first gateway device can be the gateway in Xining Equipment GN-A, GN-B, Lhasa gateway device GN-C, GN-D in any one.
S102, above-mentioned EMRM judge whether receive the response message that the first gateway device sends in preset duration.If No, then perform S103.
Specifically, the occurrence of preset duration is not defined by the present embodiment.
It should be noted that EMRM is when the first gateway device periodically sends link detecting request, if current communications link Normally, then the first gateway device can send response message to EMRM immediately when receiving link detecting request, and, EMRM The response message that the first gateway device sends can be received in preset duration.And when current communications link exception or disconnection, When EMRM sends link detecting request to the first gateway device, due to current communications link exception or disconnection, the first gateway sets For may not receiving the request of above-mentioned link detecting, or, even if the first gateway device receives above-mentioned link detecting and asks Ask, and have sent response message to EMRM immediately, but due to current communications link exception or chain rupture, EMRM also will not be when default Above-mentioned response message is received in length.
S103, above-mentioned EMRM determine current communications link disconnection.
Specifically, when in step s 102, EMRM judges that being not received by the first gateway device in preset duration sends Response message, the most in this step, EMRM determines current communications link disconnection.
The train-ground communication method of prior art, carries out breakdown judge by MSC to the link of message forwarder.But, real In the case of border, there is, to the link failure of message forwarder, the problem that cannot judge accurately, in time in MSC.
The train-ground communication method that the present embodiment provides, when the first ownership place in EMRM and at least two ownership place MSC, First message forwarder of above-mentioned first ownership place is successfully established connection, and the first net that above-mentioned EMRM is in communication disaster tolerance system When succeeding in registration on the equipment of pass, above-mentioned EMRM periodically sends link detecting request to above-mentioned first gateway device；And judge in advance If whether receiving the response message that above-mentioned first gateway device sends in duration；If it is not, the most above-mentioned EMRM determines present communications Link disconnection.So, owing to above-mentioned preset duration is the shortest, therefore, the present embodiment provide train-ground communication method, can accurately, Judge current communications link whether fault in time, and then communication can be re-established in time after current communications link fault Link, it is ensured that the safe operation of train.
The train-ground communication method that the present embodiment provides, can judge current communications link whether fault accurately and in time, and then Communication link can be re-established in time, it is ensured that the safe operation of train after current communications link fault.
Fig. 3 is the flow chart of train-ground communication embodiment of the method two of the present invention.On the basis of above-described embodiment, the present embodiment After referring to current communications link disconnection, re-establish the process of communication link.
First, before introducing the train-ground communication method that the present embodiment provides, we first simply introduce the present embodiment The communication disaster tolerance system provided.First refer to Fig. 1, specifically, in this communication disaster tolerance system, EMRM is to pass through Sending dialled number Request is connected with message forwarder foundation, and wherein, the message forwarder of Xining and Lhasa is respectively provided with the dialed number specified, example As, the dialed number that Router-A rs dialed number is DIAL-A, Router-B in Xining is DIAL-B；The Router-C of Lhasa The dialed number that dialed number is DIAL-C, Router-D be DIAL-D.It should be noted that when EMRM calling dial number During DIAL-A, either Xining MSC receives above-mentioned call request, or Lhasa MSC receives above-mentioned call request, By Xining MSC, above-mentioned call request can be transmitted to the Router-A in Xining, so that the Router-A in EMRM and Xining sets up Connect.Similarly, as EMRM calling dial number DIAL-B, either Xining MSC receives above-mentioned call request, still draws Sa MSC receives above-mentioned call request, and above-mentioned call request the most all can be transmitted to the Router-in Xining by Xining MSC B, is connected so that EMRM sets up with the Router-B in Xining.Similarly, EMRM can be by the Rotuer-of calling DIAL-C with Lhasa C sets up connection；It is connected with the Router-D foundation of Lhasa by calling DIAL-D.
Secondly, in the present embodiment, EMRM includes the first wireless communication module and the second wireless communication module, above-mentioned first nothing The corresponding first main dial request of line communication module, the corresponding second main dial request of above-mentioned second wireless communication module.
It should be noted that after user has configured ownership place for EMRM, the wireless module in EMRM can be by main dialing Message forwarder foundation in the ownership place that request configures for EMRM with above-mentioned user is connected.Such as, join for EMRM as user Put ownership place when being Xining, accordingly, be that the first wireless communication module configures the first main dialed number DIAL-A；It is second wireless Communication module configures the second main dialed number DIAL-B.So, the first wireless communication module can be by calling the first main dialing number Code DIAL-A sends the first main dial request, due to the Router-A rs dialed number that the first main number of dialling the number is Xining, now, Either the MSC in Xining receives above-mentioned first main dial request, or the MSC of Lhasa receives above-mentioned first main dialing and asks Asking, the most above-mentioned first main dial request can be transmitted to the Router-A in Xining, so, the first channel radio by the MSC in Xining Letter module will be set up with the Router-A in Xining and be connected.I.e. when being Xining for EMRM configuration ownership place, EMRM can be by main Dial request is set up with the message forwarder in Xining and is connected.Correspondingly, the second wireless communication module can be dialled by calling second is main Number number DIAL-B sends the second main dial request, sets up with the Router-B in Xining and is connected.I.e. when configuring ownership place for EMRM During for Xining, EMRM can be connected with the message forwarder foundation in Xining by main dial request.The most such as: when user joins for EMRM Put ownership place when being Lhasa, now, be the first main dialed number DIAL-C of the first wireless communication module configuration, be second wireless Communication module configures the second main dialed number DIAL-D；So, the first wireless communication module can be by calling the first main dialing number Code DIAL-C sends the first main dial request, due to the dialed number of Router-C that the first main dialed number is Lhasa, now, First wireless communication module will be connected with the Router-C foundation of Lhasa by calling DIAL-C, i.e. when belonging to for EMRM configuration When ground is Lhasa, EMRM can be connected with the message forwarder foundation of Lhasa by main dial request.So, by wireless for first Communication module configures the first main dialed number, makes the first wireless communication module corresponding with the first main dial request, by for second Wireless communication module configures the second main dialed number, makes the second wireless communication module corresponding with the second main dial request, and, by In the dialed number that the first main dialed number is the first message forwarder, so, the first main dial request and the first message are just made Transponder is corresponding；Accordingly, due to the dialed number that the second main dialed number is the second message forwarder, so, just make second Main dialed number is corresponding with the second message forwarder.
It should be noted that following each embodiment with user for EMRM configuration ownership place as Xining as a example by this is described The technical scheme of invention.
Describe the present invention provide communication disaster tolerance system after, below we introduce the present embodiment provide car ground Communication means.Refer to Fig. 3, specifically, the train-ground communication method that the present embodiment provides, including:
S201, EMRM are forwarded by the first message of the first main dial request and the MSC of the first ownership place, the first ownership place Device sets up the first connection, and above-mentioned first connection establishment success；Above-mentioned first main dial request and above-mentioned first message forwarder Corresponding；And when succeeding in registration on the first gateway device that above-mentioned EMRM is in the disaster tolerance system that communicates, above-mentioned EMRM is periodically to above-mentioned First gateway device sends link detecting request.
Specifically, with the first ownership place as Xining, the second ownership place as Lhasa, and with the Router-A in the first ownership place Be this step is described as a example by the first message forwarder implement process.
In this step, EMRM sends the first main dial request and Xining by the first wireless communication module calling DAIL-A Router-A sets up connection.Specifically, EMRM is by the first wireless communication module calling DAIL-A, now, when Xining MSC receives To above-mentioned first main dial request, above-mentioned first main dial request is transmitted to the Router-A in Xining by Xining MSC；And work as Lhasa When MSC receives above-mentioned first main dial request, this first main dial request can be transmitted to Xining MSC, Jin Eryou by Lhasa MSC Above-mentioned first main dial request is transmitted to the Router-A in Xining by Xining MSC；When Xining MSC and Lhasa MSC all receives When stating the first main dial request, now, please by above-mentioned first main dialing by the MSC relatively early receiving above-mentioned first main dial request Seek the Router-A being transmitted to Xining；And when Xining MSC and Lhasa MSC is simultaneously received above-mentioned first main dial request, then By Xining MSC, above-mentioned first main dial request is transmitted to the Router-A in Xining.So, EMRM is sent by calling DIAL-A First main dial request, and by above-mentioned first main dial request and Xining MSC, the first message forwarder Router-A in Xining Set up the first connection.
S202, EMRM judge whether receive the response message that the first gateway device sends in preset duration.If it is not, then Perform S203.
The specific implementation of this step is as step S102 in embodiment one, and here is omitted.
S203, above-mentioned EMRM determine current communications link disconnection；
In this step, if EMRM judges to be not received by the response message that the first gateway device sends in preset duration, Then determine the first connection disconnection.
S204, above-mentioned EMRM are by above-mentioned second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership Second message forwarder on ground sets up the second connection；Wherein, above-mentioned second main dial request and above-mentioned second message forwarder pair Should.
In this step, when EMRM determines the first connection disconnection, EMRM is main by the second wireless communication module calling second Dialed number DIAL-B sends the second main dial request and sets up second with the second message forwarder Router-B in Xining and be connected.Tool Body ground, EMRM is by the second wireless communication module calling DAIL-B, now, asks when Xining MSC receives above-mentioned second main dialing When asking, above-mentioned second main dial request is transmitted to the Router-B in Xining by Xining MSC；And when Lhasa MSC receives above-mentioned the During two main dial request, this second main dial request can be transmitted to Xining MSC by Lhasa MSC, and then by Xining MSC by above-mentioned Two main dial request are transmitted to the Router-B in Xining.Now, EMRM sends the second main dial request by calling DIAL-B, and Set up second by the second message forwarder Router-B of above-mentioned second main dial request with Xining MSC, Xining to be connected.
In prior art, when current communications link disconnection, OBC control MRM re-starts dialing and builds even, now, works as MSC When receiving above-mentioned dial request, first above-mentioned dial request can be transmitted to close together the disappearing being connected with above-mentioned MSC by MSC Breath transponder, if above-mentioned message forwarder fault, then above-mentioned dial request can be transmitted to another coupled message by MSC Transponder, and after MSC detects this message forwarder also fault, dial request can be transferred to strange land MSC by MSC, by strange land MSC process.But, in prior art, dial request, after message forwarder fault being detected, is being transmitted to it by MSC The problem forwarded not in time is there is during his message forwarder.But, in the present embodiment, when EMRM determines that current ink breaks Lian Hou, EMRM can be turned by the second message of the second main dial request with the MSC of above-mentioned first ownership place, above-mentioned first ownership place Send out device and set up the second connection, so, when, after current ink disconnection, EMRM can set up reserve link immediately, can avoid because of current logical After letter link failure, new communication link cannot set up the unsafe problem of the driving caused in time.
The train-ground communication method that the present embodiment provides, when EMRM by the first main dial request and the MSC of the first ownership place, After first message forwarder of the first ownership place sets up the first connection, and above-mentioned first connection establishment success, and above-mentioned EMRM exists When succeeding in registration on the first gateway device in communication disaster tolerance system, above-mentioned EMRM periodically sends chain to above-mentioned first gateway device Road detection request；After EMRM determines current communications link disconnection, EMRM can be returned with above-mentioned first by the second main dial request The MSC in possession, the second message forwarder of above-mentioned first ownership place set up the second connection；Wherein, above-mentioned second main dial request Corresponding with above-mentioned second message forwarder.So, when, after current communications link disconnection, EMRM can set up reserve link immediately, can After avoiding because of current communications link fault, new communication link cannot set up the unsafe problem of the driving caused in time.
Fig. 4 is the flow chart of train-ground communication embodiment of the method three of the present invention.On the basis of above-described embodiment, the present embodiment Refer to when EMRM by above-mentioned first main dial request and the MSC of above-mentioned first ownership place, the of above-mentioned first ownership place When one message forwarder sets up the first connection failure, EMRM by first for dial request and the MSC of the second ownership place, second return 3rd message forwarder in possession sets up the detailed process of the 3rd connection.
We the most first introduce the communication disaster tolerance system that the present embodiment provides below.Specifically, in this enforcement, when with Family is EMRM configuration ownership place when being Xining, in addition to configure the first main dialed number DIAL-A for the first wireless communication module, It is also that the first wireless communication module configuration first is for dialed number DIAL-C.So, when the first wireless communication module is by calling First main dialed number DAIL-A sends the first main dial request and sets up first with the message forwarder Router-A in Xining and be connected During failure, the first wireless communication module can send first for dial request for dialed number DIAL-C by calling first, due to The first standby number of dialling the number DIAL-C is the dialed number of the 3rd message forwarder Router-C of Lhasa, so, the first channel radio Letter module just can be connected with the 3rd message forwarder Router-C foundation of Lhasa for dial request by first.
It should be noted that after user has configured ownership place for EMRM, EMRM with user can be by standby dial request Message forwarder in the ownership place that ownership place that EMRM configures is different is set up and is connected.Such as, return for EMRM configuration as user When possession is Xining, EMRM can be connected with the message forwarder foundation of Lhasa by standby dial request.
Describe the present invention provide communication disaster tolerance system after, below we introduce the present embodiment provide car ground Communication means, on the basis of embodiment two, if EMRM is by above-mentioned first main dial request and above-mentioned first ownership place When MSC, the first message forwarder of above-mentioned first ownership place set up the first connection failure, the train-ground communication side that the present embodiment provides Method, also includes:
S301, EMRM pass through first for dial request and the MSC of the second ownership place, the 3rd message forwarding of the second ownership place The 3rd connection set up by device, and determines whether above-mentioned 3rd connection is successfully established, the most then perform step S302, if it is not, then perform Step S303.
Specifically, in this step, if EMRM by the first wireless communication module call the first main dialed number DIAL-A with When Xining MSC, the first message forwarder Router-A in Xining set up the first connection failure, EMRM can pass through the first radio communication Calls first sets up the 3rd even for dialed number DIAL-C and Lhasa MSC, the 3rd message forwarder Router-C of Lhasa Connect, and determine whether above-mentioned 3rd connection is successfully established.
S302, the above-mentioned EMRM arbitrary gateway device in above-mentioned communication disaster tolerance system initiates registration request, so that above-mentioned Successful registration on the EMRM the second gateway device in above-mentioned communication disaster tolerance system.
In this step, when, after above-mentioned 3rd connection establishment success, EMRM first passes through the above-mentioned 3rd and connects to Lhasa Gateway device GN-C registers, if EMRM is when GN-C registers, registration failure, at this moment, EMRM may proceed to set to gateway Standby GN-C registers, and records the number of times of continuous registration failure, when EMRM to the continuous registration failure of gateway device GN-C time When number is more than the first setting value, EMRM can be registered to the gateway device GN-D of Lhasa by above-mentioned 3rd connection；If EMRM When GN-D registers, registration failure, now, EMRM may proceed to register to gateway device GN-D, and records note continuously The number of times that volume is failed, when EMRM is more than the second setting value to the number of times of the continuous registration failure of gateway device GN-D, EMRM then can Connect again by the above-mentioned 3rd and register to gateway device GN-C.In this process, if EMRM notes to GN-C and GN-D During volume, equal registration failure, and EMRM number of times of continuous registration failure when GN-C registers registers to GN-D with EMRM When number of times sum failed for Shi Lianxu is more than three setting values, EMRM can connect the gateway device to Xining by the above-mentioned 3rd and continue Continue and register, until succeeding in registration.So, by arranging multiple gateway device, when one of them gateway device failure, EMRM can complete registration by other gateway device, and then please by sending link detecting to the gateway device succeeded in registration Ask, to determine current communications link whether fault.
If it should be noted that EMRM initiates according to the above-mentioned order all gateway devices in above-mentioned communication disaster tolerance system During registration request, equal registration failure, now, EMRM can determine that the equal fault of all gateway devices in above-mentioned communication disaster tolerance system, At this time, it may be necessary to the gateway device in above-mentioned communication disaster tolerance system is keeped in repair.
S303, above-mentioned EMRM are by above-mentioned second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership Second message forwarder on ground sets up the second connection.
In this step, when above-mentioned 3rd connection establishment failure, EMRM can be by the second wireless communication module calling DIAL- B sends the second main dial request and sets up second with the second message forwarder Router-B of Xining MSC, Xining and be connected.
The train-ground communication method that the present embodiment provides, asks when EMRM sends the first main dialing by the first wireless communication module Asking when setting up the first connection failure with the first message forwarder, EMRM sends first also by the first wireless communication module and standby dials Number request is set up the 3rd with the 3rd message forwarder and is connected, and when EMRM and the 3rd message forwarder set up connection failure, EMRM sends the second main dialed number and the MSC of the first ownership place, the first ownership place also by the second wireless communication module Second message forwarder sets up the second connection.So, at the first wireless communication module fault or the first message forwarder or the 3rd During message forwarder fault, EMRM can run through the second wireless communication module and the second message forwarder sets up the second connection, Can avoid affecting the safety of driving because communication link is in disconnected state for a long time.
Fig. 5 is the flow chart of train-ground communication embodiment of the method four of the present invention.On the basis of above-described embodiment, the present embodiment Refer to when EMRM by above-mentioned first main dial request and the MSC of above-mentioned first ownership place, the of above-mentioned first ownership place When one message forwarder sets up the first connection failure, before EMRM sets up corresponding connection by first for dial request, EMRM continues Continue by above-mentioned first main dial request and the MSC of above-mentioned first ownership place, the first message forwarder of above-mentioned first ownership place Set up the first connection, and record current first and redial number of times, and redial number of times by first and judge whether by above-mentioned first Standby dial request sets up the 3rd detailed process being connected with the MSC of above-mentioned second ownership place, above-mentioned 3rd message forwarder.In reality On the basis of executing example three, the train-ground communication method that the present embodiment provides, also include:
S401, above-mentioned EMRM continue through above-mentioned first main dial request and the MSC of above-mentioned first ownership place, above-mentioned first First message forwarder of ownership place re-establishes the first connection, and records current first and redial number of times.
Specifically, first main group is sent when EMRM calls the first main dialed number DAIL-A by the first wireless communication module Number request, when setting up the first connection failure with the first message forwarder Router-A of Xining MSC, Xining, in this step, EMRM Continue through the first wireless communication module to call the first main dialed number DAIL-A and send the first main dial request, with Xining MSC, The first message forwarder Router-A in Xining re-establishes the first connection, and records current first and redial number of times.
S402, above-mentioned EMRM judge that above-mentioned first redials whether number of times is more than the first predetermined threshold value, the most then perform step S403；
Specifically, in this step, the occurrence of the first predetermined threshold value is not defined.
S403, above-mentioned EMRM by above-mentioned first for dial request and the MSC of above-mentioned second ownership place, above-mentioned 3rd message The 3rd connection set up by transponder.
Specifically, if in step S402, EMRM judge first redial number of times more than the first predetermined threshold value time, in this step In, EMRM passes through the first wireless communication module calling first the 3rd message forwarder for dialed number DAIL-C Yu Lhasa Router-C sets up the 3rd connection, and the correlated process setting up the 3rd connection may refer to the description of above-mentioned S301 to S303, at this Repeat no more.
The train-ground communication method that the present embodiment provides, asks when EMRM sends the first main dialing by the first wireless communication module Asking when setting up the first connection failure with the first message forwarder, EMRM continues through the first wireless communication module and sends first and main dial Number request is set up first with the first message forwarder and is connected, and records current first and redial number of times, and when first, to redial number of times big When the first predetermined threshold value, EMRM sends first by the first wireless communication module and builds for dial request and the 3rd message forwarder Vertical 3rd connection.So, when the first message forwarder fault, EMRM and the first message forwarder set up the first connection failure, EMRM can run through the first wireless communication module calling first and set up the 3rd connection for dial request and the 3rd message forwarder, Can avoid making communication link be in disconnected state for a long time because of the first message forwarder fault, and then can avoid because of communication link It is in disconnected state for a long time and affects the safety of driving.
Fig. 6 is the flow chart of train-ground communication embodiment of the method five of the present invention.What the present embodiment related to works as the 3rd connection establishment During failure, EMRM continues through above-mentioned first for dial request and the MSC of above-mentioned second ownership place, above-mentioned 3rd message forwarder Re-establish the 3rd connection, and record current second and redial number of times, and redial number of times by second and judge whether by above-mentioned Second main dial request and the MSC of above-mentioned first ownership place, the second message forwarder of above-mentioned first ownership place set up second even The detailed process connect.On the basis of embodiment four, the train-ground communication method that the present embodiment provides, also include:
S501, above-mentioned EMRM continue through above-mentioned first for dial request and the MSC of above-mentioned second ownership place, the above-mentioned 3rd Message forwarder re-establishes the 3rd connection, and records current second and redial number of times；
In this step, EMRM continues through the first wireless communication module calling first and sends first for dialed number DAIL-C Standby dial request is set up the 3rd with the 3rd message forwarder Router-C of Lhasa and is connected.
S502, above-mentioned EMRM judge that above-mentioned second redials whether number of times is more than the second predetermined threshold value, the most then perform step S503。
In this step, the occurrence of the second predetermined threshold value is not defined.
S503, above-mentioned EMRM are by above-mentioned second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership Second message forwarder on ground sets up the second connection.
In this step, if EMRM judge above-mentioned second redial number of times more than the second predetermined threshold value time, EMRM pass through the second nothing Line communication module calls the second main dialed number DAIL-B and Xining MSC, the second message forwarder Router-B in Xining sets up Second connects.
The train-ground communication method that the present embodiment provides, when EMRM please by the first standby dialing of wireless communication module transmission first Asking when setting up three connection failures with the 3rd message forwarder, EMRM continues through the first wireless communication module and sends first and standby dial Number request is set up the 3rd with the 3rd message forwarder and is connected, and records current second and redial number of times, and when second, to redial number of times big When the second predetermined threshold value, EMRM sends the second main dial request by the second wireless communication module and the second message forwarder is built Vertical second connection.So, when the 3rd message forwarder fault, EMRM and the 3rd message forwarder set up three connection failures, EMRM can run through the second wireless communication module and call the second main dial request and the second message forwarder sets up the second connection, Can avoid making communication link be in disconnected state for a long time because of the 3rd message forwarder fault, and then can avoid because of communication link It is in disconnected state for a long time and affects the safety of driving.
Fig. 7 is the flow chart of train-ground communication embodiment of the method six of the present invention.The present embodiment refers to current communications link Chain rupture, and when the second message forwarder of EMRM and the first ownership place sets up the second connection also failure, EMRM is wireless by second Communication module calling second sets up for the 4th message forwarder of dialed number and the MSC of the second ownership place, the second ownership place Four detailed processes connected.
The most first introduce the communication disaster tolerance system that the present embodiment provides.Concrete, within the system, user is also the second nothing Line communication module is configured with second for dialed number, and on the basis of above-described embodiment, in this enforcement, user is the second channel radio Letter module is configured with second for dialed number DAIL-D.So, dial by the second wireless communication module calling second is main as EMRM When number number DIAL-B and Xining MSC, the message forwarder Router-B in Xining set up the second connection failure, EMRM also by Second wireless communication module calls the second backup dialup number DAIL-D and Lhasa MSC, the 4th message forwarder of Lhasa Router-D sets up connection.
Introduce the train-ground communication method that the present embodiment provides below.Refer to Fig. 7, on the basis of embodiment two, when After EMRM determines current communications link disconnection, and EMRM is by above-mentioned second main dial request and above-mentioned first ownership place When MSC, the second message forwarder of above-mentioned first ownership place set up the second connection failure, the train-ground communication side that the present embodiment provides Method, also includes:
S601, above-mentioned EMRM by above-mentioned second for dial request and the MSC of above-mentioned second ownership place, above-mentioned 4th message The 4th connection set up by transponder, and determines whether above-mentioned 4th connection is successfully established, the most then perform step S602.
Specifically, in the present embodiment, after EMRM determines current communications link disconnection, and EMRM is by the second channel radio Letter calls second main dialed number DAIL-B sets up second with Xining MSC, the second message forwarder Router-B in Xining During connection failure, in this step, EMRM can also by second wireless communication module calling second for dialed number DAIL-D with Lhasa MSC, the 4th message forwarder Router-D of Lhasa set up the 4th connection.
S602, the above-mentioned EMRM arbitrary gateway device in above-mentioned communication disaster tolerance system initiates registration request, so that above-mentioned EMRM succeeds in registration on the 3rd gateway device in above-mentioned communication disaster tolerance system.
Specifically, in this step, if EMRM by second wireless communication module calling second for dialed number DAIL-D with Lhasa MSC, the 4th message forwarder Router-D of Lhasa are successfully established the 4th connection.Now, EMRM can first pass through above-mentioned 4th connection is registered to the gateway device GN-D of Lhasa, if EMRM is when GN-D registers, after registration failure, and EMRM meeting Continue to register to gateway device GN-D, and record the number of times of continuous registration failure, when MRM notes continuously to gateway device GN-D When the failed number of times of volume is more than the first setting value, EMRM then can be carried out to the gateway device GN-C of Lhasa by above-mentioned 4th connection Registration, if EMRM is when GN-C registers, after registration failure, EMRM may proceed to register to gateway device GN-C, and remembers Record the number of times of continuous registration failure, when EMRM may proceed to the number of times of the continuous registration failure of gateway device GN-C more than the second setting During value, EMRM then registers to the gateway device GN-D of Lhasa again by above-mentioned 3rd connection.In this process, if EMRM when GN-D and GN-C registers, equal registration failure, and the number of times the most failed when GN-D registers of EMRM and EMRM When number of times sum the most failed when GN-C registers is more than three setting values, EMRM can connect westwards by the above-mentioned 4th Peaceful gateway device is registered, until succeeding in registration.
So, by arranging multiple gateway device, when one of them gateway device failure, EMRM can be by other net Pass equipment completes registration, and then asks by sending link detecting to the gateway device succeeded in registration, to determine present communications chain Road whether fault.
If it should be noted that EMRM initiates according to the above-mentioned order all gateway devices in above-mentioned communication disaster tolerance system During registration request, if all registration failures, now, EMRM can determine that all events of all gateway devices in above-mentioned communication disaster tolerance system Barrier, at this time, it may be necessary to keep in repair the gateway device in above-mentioned communication disaster tolerance system.
The train-ground communication method that the present embodiment provides, when current communications link disconnection, and EMRM is by the second radio communication The main dialed number of calls second sends the second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first ownership place The second message forwarder when setting up the second connection failure, EMRM is again by the second standby dialing of wireless communication module calling second Number transmission second sets up the 4th even for the 4th message forwarder of dial request and the MSC of the second ownership place, the second ownership place Connect.So, when the second message forwarder fault, EMRM can by second for dial request and the MSC of the second ownership place, second 4th message forwarder of ownership place sets up the 4th connection, can avoid making because of the second message forwarder fault the communication link cannot Set up in time, and then can avoid affecting because communication link is in disconnected state for a long time the safety of driving.
Fig. 8 is the flow chart of train-ground communication embodiment of the method seven of the present invention.On the basis of above-described embodiment, the present embodiment After referring to current communications link disconnection, and the second message forwarder of EMRM and the first ownership place is set up the second connection and is also lost When losing, EMRM continues through the second main dial request and the MSC of the first ownership place, the second message forwarder weight of the first ownership place Newly set up the second connection, and record current the 3rd and redial number of times, and redial number of times by the 3rd and judge whether by second standby 4th message forwarder of dial request and the MSC of the second ownership place, the second ownership place sets up the detailed process of the 4th connection.? On the basis of embodiment six, the train-ground communication method that the present embodiment provides, also include:
S701, above-mentioned EMRM continue through above-mentioned second main dial request and the MSC of above-mentioned first ownership place, above-mentioned first Second message forwarder of ownership place re-establishes the second connection, and records current the 3rd and redial number of times.
In this step, EMRM continues through the second wireless communication module and calls the second main dialed number DIAL-B and Xining MSC, the second message forwarder Router-B in Xining re-establish the second connection.
S702, above-mentioned EMRM judge that the above-mentioned 3rd redials whether number of times is more than the 3rd predetermined threshold value, the most then perform step S703。
In this step, the occurrence of the 3rd predetermined threshold value is not defined.
S703, above-mentioned EMRM by above-mentioned second for dial request and the MSC of above-mentioned second ownership place, above-mentioned 4th message The 4th connection set up by transponder.
In this step, EMRM by the second wireless communication module calling second for dialed number DIAL-D and Lhasa MSC, draw 4th message forwarder Router-D of Sa sets up the 4th connection.
The train-ground communication method that the present embodiment provides, when EMRM calls the second main dialing number by the second wireless communication module Code sends the second main dial request and the MSC of above-mentioned first ownership place, the second message forwarder foundation of above-mentioned first ownership place During the second connection failure；EMRM continues through the second wireless communication module and sends the second main dial request and the second message forwarder Set up the second connection, and record current the 3rd and redial number of times, when the 3rd redials number of times more than the second predetermined threshold value, and EMRM passes through Second wireless communication module sends second and sets up the 4th connection for dial request and the 4th message forwarder.So, disappear second When breath transponder fault, EMRM and the second message forwarder set up the second connection failure, EMRM can run through the second channel radio Letter module sends second sets up the 4th connection for dial request and the 4th message forwarder, can avoid because of the second message forwarder therefore Hinder and make communication link be in disconnected state for a long time, and then can avoid affecting because communication link is in disconnected state for a long time The safety of driving.
Fig. 9 is the structural representation of EMRM embodiment one of the present invention.The EMRM that the present embodiment provides, it is adaptable to such as Fig. 1 institute The communication disaster tolerance system shown, above-mentioned communication disaster tolerance system includes EMRM that the present embodiment provides and is connected at least with above-mentioned EMRM The MSC of two ownership place, each ownership place includes at least two message forwarder and at least two gateway device, and above-mentioned message turns The number sending out device is identical with the number of above-mentioned gateway device.
Refer to Fig. 9, the EMRM that the present embodiment provides includes sending module 100, judge module 200, determines module 300；
Sending module 100, for when determining that module 300 determines above-mentioned EMRM and first in above-mentioned at least two ownership place The MSC of ownership place, the first message forwarder of above-mentioned first ownership place are successfully established connection, and above-mentioned EMRM holds in above-mentioned communication When succeeding in registration on the first gateway device in calamity system, send link detecting request to above-mentioned first gateway device；
Judge module 200, for judging whether receive the response that above-mentioned first gateway device sends in preset duration Message；
Determine module 300, for judging that being not received by above-mentioned first gateway in preset duration sets when judge module 200 During the response message that preparation is sent, confirm current communications link disconnection.
The EMRM that the present embodiment provides, can perform the technical scheme of embodiment of the method shown in Fig. 2, and it realizes principle and skill Art effect is similar to, and here is omitted.
Figure 10 is the structural representation of EMRM embodiment two of the present invention.On the basis of above-described embodiment, in the present embodiment, EMRM also includes the first wireless communication module 400 and the second radio communication 500 module, the first wireless communication module 400 correspondence One main dial request, the corresponding second main dial request of the second wireless communication module 500；Wherein, above-mentioned first main dial request with Above-mentioned first message forwarder is corresponding；Above-mentioned second main dial request is corresponding with above-mentioned second message forwarder；
First wireless communication module 400, for by the MSC of above-mentioned first main dial request and above-mentioned first ownership place, First message forwarder of above-mentioned first ownership place sets up the first connection, and above-mentioned first connection establishment success；
Second wireless communication module 500, for after determining that module 300 determines current communications link disconnection, by upper State the second main dial request and set up second with the MSC of above-mentioned first ownership place, the second message forwarder of above-mentioned first ownership place Connect.
The EMRM that the present embodiment provides, can perform the technical scheme of embodiment of the method shown in Fig. 3, and it realizes principle and skill Art effect is similar to, and here is omitted.
Further, the first wireless communication module 400 the most corresponding first is for dial request, and above-mentioned first for dial request Corresponding with the 3rd message forwarder of the second ownership place in above-mentioned at least two ownership place；
First wireless communication module 400, is additionally operable at the first wireless communication module 400 by above-mentioned first main dial request When setting up the first connection failure with first message forwarder of the MSC of above-mentioned first ownership place, above-mentioned first ownership place, by upper State first to set up the 3rd for dial request be connected with the MSC of above-mentioned second ownership place, the 3rd message forwarder of the second ownership place,
Determine module 300, be additionally operable to determine whether above-mentioned 3rd connection is successfully established；
Sending module 100, is additionally operable to when determining that module 300 determines above-mentioned 3rd connection establishment success, to above-mentioned communication Arbitrary gateway device in disaster tolerance system initiates registration request, so that the second net that above-mentioned EMRM is in above-mentioned communication disaster tolerance system Successful registration on the equipment of pass；
Second wireless communication module 500, is additionally operable to when determining that module 300 determines above-mentioned 3rd connection establishment failure, logical Cross above-mentioned second main dial request and the MSC of above-mentioned first ownership place, the second message forwarder foundation of above-mentioned first ownership place Second connects.
Specifically, the EMRM that the present embodiment provides, may be used for performing the technical scheme of embodiment of the method shown in Fig. 4, its Realizing principle similar with technique effect, here is omitted.
Further, the first wireless communication module 400, be additionally operable to by above-mentioned first for dial request and above-mentioned second Before the MSC of ownership place, above-mentioned 3rd message forwarder set up the 3rd connection, continue through above-mentioned first main dial request with upper State the MSC of the first ownership place, the first message forwarder of above-mentioned first ownership place re-establishes the first connection, and records current First redials number of times；
Judge module 200, is additionally operable to judge that whether above-mentioned first redial number of times more than the first predetermined threshold value；
First wireless communication module 400, is additionally operable to judge that above-mentioned first redials number of times more than first pre-at judge module 200 If during threshold value, set up the by above-mentioned first for dial request and the MSC of above-mentioned second ownership place, above-mentioned 3rd message forwarder Three connect.
Specifically, the EMRM that the present embodiment provides, may be used for performing the technical scheme of embodiment of the method shown in Fig. 5, its Realizing principle similar with technique effect, here is omitted.
Further, the first wireless communication module 400, it is additionally operable to determining that module 300 determines above-mentioned 3rd connection establishment During failure, continue through above-mentioned first for dial request with the MSC of above-mentioned second ownership place, above-mentioned 3rd message forwarder again Set up the 3rd connection, and record current second and redial number of times；
Judge module 200, is additionally operable to judge that whether above-mentioned second redial number of times more than the second predetermined threshold value；
Second wireless communication module 500, is additionally operable to judge that above-mentioned second redials number of times more than second pre-at judge module 200 If during threshold value, by above-mentioned second main dial request and the MSC of above-mentioned first ownership place, the second message of above-mentioned first ownership place The second connection set up by transponder.
Specifically, the land mobile communication system that the present embodiment provides, may be used for the technology of embodiment of the method shown in Fig. 6 that performs Scheme, it is similar with technique effect that it realizes principle, and here is omitted.
Further, the second wireless communication module 500 the most corresponding second for dial request, above-mentioned second for dial request with 4th message forwarder of the second ownership place in above-mentioned at least two ownership place is corresponding；
Second wireless communication module 500, is additionally operable at the second wireless communication module 500 by above-mentioned second main dial request When setting up the second connection failure with second message forwarder of the MSC of above-mentioned first ownership place, above-mentioned first ownership place, by upper State second to set up the 4th for dial request be connected with the MSC of above-mentioned second ownership place, above-mentioned 4th message forwarder；
Determine module 300, be additionally operable to determine whether above-mentioned 4th connection is successfully established；
Sending module 100, is additionally operable to when determining that module 300 determines above-mentioned 4th connection establishment success, to above-mentioned communication Arbitrary gateway device in disaster tolerance system initiates registration request, so that the 3rd net that above-mentioned EMRM is in above-mentioned communication disaster tolerance system Succeed in registration on the equipment of pass.
Specifically, the EMRM that the present embodiment provides, may be used for performing the technical scheme of embodiment of the method shown in Fig. 7, its Realizing principle similar with technique effect, here is omitted.
Further, the second wireless communication module 500 be additionally operable to by above-mentioned second for dial request and above-mentioned second Before the MSC of ownership place, above-mentioned 4th message forwarder set up the 4th connection, continue through above-mentioned second main dial request with upper State the MSC of the first ownership place, the second message forwarder of above-mentioned first ownership place re-establishes the second connection, and records current 3rd redials number of times；
Judge module 200, is additionally operable to judge that whether the above-mentioned 3rd redial number of times more than the 3rd predetermined threshold value；
Second wireless communication module 500, is additionally operable to judge that the above-mentioned 3rd redials number of times more than the 3rd pre-at judge module 200 If during threshold value, set up the by above-mentioned second for dial request and the MSC of above-mentioned second ownership place, above-mentioned 4th message forwarder Four connect.
Specifically, the EMRM that the present embodiment provides, may be used for performing the technical scheme of embodiment of the method shown in Fig. 8, its Realizing principle similar with technique effect, here is omitted.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each method embodiment can be led to The hardware crossing programmed instruction relevant completes.Aforesaid program can be stored in a computer read/write memory medium.This journey Sequence upon execution, performs to include the step of above-mentioned each method embodiment；And aforesaid storage medium includes: ROM, RAM, magnetic disc or The various media that can store program code such as person's CD.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered Row equivalent；And these amendments 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 (10)

1. a train-ground communication method, it is characterised in that described method is applicable to the disaster tolerance system that communicates, described communication disaster tolerance system Including enhancement mode mobile wireless module EMRM and the moving exchanging center MSC of at least two ownership place that is connected with described EMRM, Each ownership place includes at least two message forwarder and at least two gateway device, and the number of described message forwarder is with described The number of gateway device is identical；Described method includes:
As described EMRM and the MSC of the first ownership place in described at least two ownership place, the first of described first ownership place disappear Breath transponder is successfully established in connection, and the first gateway device that described EMRM is in described communication disaster tolerance system and succeeds in registration Time, described EMRM sends link detecting request to described first gateway device；
Described EMRM judges whether receive the response message that described first gateway device sends in preset duration；
If it is not, the most described EMRM determines current communications link disconnection.
Method the most according to claim 1, it is characterised in that described EMRM includes the first wireless communication module and the second nothing Line communication module, the described first corresponding first main dial request of wireless communication module, described second wireless communication module correspondence the Two main dial request, the MSC of the first ownership place in described EMRM and described at least two ownership place, described first ownership place First message forwarder is successfully established connection, specifically includes:
Described EMRM by described first main dial request and the MSC of described first ownership place, the first of described first ownership place Message forwarder sets up the first connection, and described first connection establishment success；Described first main dial request disappears with described first Breath transponder is corresponding；
After the most described EMRM determines current communications link disconnection, described method also includes:
Described EMRM by described second main dial request and the MSC of described first ownership place, the second of described first ownership place Message forwarder sets up the second connection；Wherein, described second main dial request is corresponding with described second message forwarder.
Method the most according to claim 2, it is characterised in that described first wireless communication module the also corresponding first standby dialing Request, and described first for the 3rd message forwarder pair of the second ownership place in dial request and described at least two ownership place Should；
If described EMRM by described first main dial request and the MSC of described first ownership place, the of described first ownership place When one message forwarder sets up the first connection failure, described method also includes:
Described EMRM by described first for dial request and the MSC of described second ownership place, the 3rd message of the second ownership place The 3rd connection set up by transponder, and determines whether described 3rd connection is successfully established；
The most described EMRM arbitrary gateway device in described communication disaster tolerance system initiates registration request, so that described Successful registration on the EMRM the second gateway device in described communication disaster tolerance system；
If it is not, described EMRM is by described second main dial request and the MSC of described first ownership place, described first ownership place Second message forwarder sets up the second connection.
Method the most according to claim 3, it is characterised in that described EMRM passes through described first for dial request with described Before the MSC of the second ownership place, described 3rd message forwarder set up the 3rd connection, described method also includes:
Described EMRM continues through described first main dial request and the MSC of described first ownership place, described first ownership place First message forwarder re-establishes the first connection, and records current first and redial number of times；
Described EMRM judges that whether described first redial number of times more than the first predetermined threshold value；
The most described EMRM forwards with the MSC of described second ownership place, described 3rd message for dial request by described first The 3rd connection set up by device.
Method the most according to claim 4, it is characterised in that if during described 3rd connection establishment failure, described method is also Including:
Described EMRM continues through described first and forwards with the MSC of described second ownership place, described 3rd message for dial request Device re-establishes the 3rd connection, and records current second and redial number of times；
Described EMRM judges that whether described second redial number of times more than the second predetermined threshold value；
The most described EMRM is by described second main dial request and the MSC of described first ownership place, described first ownership place The second message forwarder set up the second connection.
Method the most according to claim 2, it is characterised in that described second wireless communication module the also corresponding second standby dialing Request, described second for the 4th message forwarder pair of the second ownership place in dial request and described at least two ownership place Should；
If described EMRM by described second main dial request and the MSC of described first ownership place, the of described first ownership place When two message forwarders set up the second connection failure, described method also includes:
Described EMRM builds with the MSC of described second ownership place, described 4th message forwarder for dial request by described second Vertical 4th connection, and determine whether described 4th connection is successfully established；
The most described EMRM arbitrary gateway device in described communication disaster tolerance system initiates registration request, so that described EMRM succeeds in registration on the 3rd gateway device in described communication disaster tolerance system.
Method the most according to claim 6, it is characterised in that described EMRM passes through described second for dial request with described Before the MSC of the second ownership place, described 4th message forwarder set up the 4th connection, described method also includes:
Described EMRM continues through described second main dial request and the MSC of described first ownership place, described first ownership place Second message forwarder re-establishes the second connection, and records current the 3rd and redial number of times；
Described EMRM judges that whether the described 3rd redial number of times more than the 3rd predetermined threshold value；
The most described EMRM turns with the MSC of described second ownership place, described 4th message for dial request by described second Send out device and set up the 4th connection.
8. enhancement mode mobile wireless module EMRM, it is characterised in that be applicable to the disaster tolerance system that communicates, described communication disaster tolerance system System includes described EMRM and the MSC of at least two ownership place being connected with described EMRM, and each ownership place includes that at least two disappears Breath transponder and at least two gateway device, the number of described message forwarder is identical with the number of described gateway device；Described EMRM includes sending module, judge module, determines module；
Described sending module, for described determining that module determines that described EMRM returns with first in described at least two ownership place The MSC in possession, the first message forwarder of described first ownership place are successfully established connection, and described EMRM is at described communication disaster tolerance When succeeding in registration on the first gateway device in system, send link detecting request to described first gateway device；
Described judge module, for judging that the response whether receiving described first gateway device transmission in preset duration disappears Breath；
Described determine module, for judging to be not received by described first gateway device in preset duration when described judge module During the response message sent, confirm current communications link disconnection.
EMRM the most according to claim 8, it is characterised in that described EMRM also includes the first wireless communication module and second Wireless communication module, the corresponding first main dial request of described first wireless communication module, described second wireless communication module is corresponding Second main dial request；Wherein, described first main dial request is corresponding with described first message forwarder；Described second main dialing Ask corresponding with described second message forwarder；
Described first wireless communication module, for by described first main dial request and the MSC of described first ownership place, described First message forwarder of the first ownership place sets up the first connection, and described first connection establishment success；
Described second wireless communication module, for described determine that module determines current communications link disconnection after, by described Second main dial request and the MSC of described first ownership place, the second message forwarder of described first ownership place set up second even Connect.
EMRM the most according to claim 9, it is characterised in that described first wireless communication module also corresponding first is standby to be dialled Number request, and described first for the 3rd message forwarder of the second ownership place in dial request and described at least two ownership place Corresponding；
Described first wireless communication module, be additionally operable to described first wireless communication module by described first main dial request with When the MSC of described first ownership place, the first message forwarder of described first ownership place set up the first connection failure, by described First sets up the 3rd for dial request be connected with the MSC of described second ownership place, the 3rd message forwarder of the second ownership place,
Described determine module, be additionally operable to determine that the described 3rd connects and whether be successfully established；
Described sending module, be additionally operable to described determine that module determines described 3rd connection establishment success time, to described communication hold Arbitrary gateway device in calamity system initiates registration request, so that the second gateway that described EMRM is in described communication disaster tolerance system Successful registration on equipment；
Described second wireless communication module, be additionally operable to described determine that module determines described 3rd connection establishment failure time, pass through Described second main dial request and the MSC of described first ownership place, the second message forwarder of described first ownership place set up the Two connect.
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