CN106302018B - Train-ground communication method and enhanced mobile wireless module EMRM - Google Patents

Train-ground communication method and enhanced mobile wireless module EMRM Download PDF

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CN106302018B
CN106302018B CN201610685053.0A CN201610685053A CN106302018B CN 106302018 B CN106302018 B CN 106302018B CN 201610685053 A CN201610685053 A CN 201610685053A CN 106302018 B CN106302018 B CN 106302018B
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emrm
ownership place
mentioned
msc
message
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CN106302018A (en
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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 train for signalling purposes
    • B61L15/0018—Communication with or on the vehicle or 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Computing Systems (AREA)
  • Medical Informatics (AREA)
  • Mechanical Engineering (AREA)
  • Cardiology (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides a kind of train-ground communication method and enhanced mobile wireless module EMRM.Train-ground communication method provided by the invention, suitable for communicating disaster tolerance system, communication disaster tolerance system includes the MSC of EMRM and at least two ownership place, and each ownership place includes at least two message forwarders and at least two gateways, and the number of message forwarder and the number of gateway are identical；The above method includes: to connect when EMRM is successfully established with the first message transponder of the MSC of the first ownership place at least two ownership place, the first ownership place, and EMRM, when succeeding in registration on communicating the first gateway in disaster tolerance system, EMRM is detected to the first gateway transmission link and is requested；EMRM judges the response message that the transmission of the first gateway whether is received in preset duration；If it is not, then EMRM determines current communications link disconnection.Train-ground communication method provided by the invention and EMRM, can judge accurately and in time current communications link whether disconnection.

Description

Train-ground communication method and enhanced mobile wireless module EMRM
Technical field
The present invention relates to the communication technology more particularly to a kind of train-ground communication method and EMRM.
Background technique
Currently, 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, is made with cab signal Train operation is controlled for the main running signal of train operation.ITCS system is changed when happening to department by monitoring train operation Machine provides alarm, and implements to brake when required by train, to guarantee traffic safety.
In ITCS system, train-installed computer OBC (On Board Computer) and station radio block center 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 connection is there are two message forwarder, and MSC The service number configured for all message forwarders is DIAL-X.In this way, when OBC and RBC establish wireless link, OBC Vehicle-mounted mobile wireless module MRM (Mobile Radio Module) one fixed number (DIAL-X) of device call is controlled, when After MSC receives MRM to the dial request of DIAL-X, dial request is assigned to disappearing for being closer of connecting with the MSC by MSC Transponder is ceased, and message forwarder is connected with RBC by communication network.In this way, when OBC and message forwarder establish Radio Link Afterwards, mutually continuous vehicle-ground wireless communication between OBC and RBC can be realized.
When carrying out train-ground communication using the land mobile communication system, when the Radio Link call drop between OBC and message forwarder Afterwards, OBC can control MRM and re-start dialing link setup, if detecting that the coupled message being closer turns by MSC at this time Device failure is sent out, dial request can be assigned to another message forwarder connected to it by MSC；When MSC detects that the message turns For hair device also after failure, dial request can be transferred to strange land MSC by MSC, be handled by strange land MSC.But under actual conditions, MSC there are problems that being unable to judge accurately to the link failure of message forwarder, this will cause after Radio Link chain rupture cannot and Shi Huifu influences 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 The link failure of transponder there are problems that being unable to judge accurately.
First aspect present invention provides a kind of train-ground communication method, is suitable for communication disaster tolerance system, above-mentioned communication disaster tolerance system System includes the MSC of EMRM and at least two ownership place connecting with above-mentioned EMRM, and each ownership place turns including at least two message It sends out device and at least two gateways, the number of above-mentioned message forwarder is identical as the number of above-mentioned gateway；The present invention mentions 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, above-mentioned first ownership place the One message forwarder is successfully established connection, and above-mentioned EMRM is registered in the first gateway in above-mentioned communication disaster tolerance system When function, above-mentioned EMRM is detected to above-mentioned first gateway transmission link and is requested；
Above-mentioned EMRM judges the response message that above-mentioned first gateway is sent whether is received in preset duration；
If it is not, then above-mentioned EMRM determines current communications link disconnection.
Further, above-mentioned EMRM includes the first wireless communication module and the second wireless communication module, and above-mentioned first is wireless Communication module corresponds to the first main dial request, 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, above-mentioned first ownership place first message transponder be successfully established Connection, specifically includes:
Above-mentioned EMRM passes through the MSC of the above-mentioned first main dial request and above-mentioned first ownership place, above-mentioned first ownership place First message transponder establishes the first connection, and above-mentioned first connection is successfully established；Above-mentioned first main dial request and above-mentioned the One message forwarder is corresponding；
After then above-mentioned EMRM determines current communications link disconnection, the above method further include:
Above-mentioned EMRM passes through the MSC of the above-mentioned second main dial request and above-mentioned first ownership place, above-mentioned first ownership place Second message transponder establishes the second connection；Wherein, the above-mentioned second main dial request is corresponding with above-mentioned second message transponder.
Further, above-mentioned first wireless communication module also corresponding first is for dial request, and the above-mentioned first standby dialing is asked Ask corresponding with the third message forwarder of the second ownership place in above-mentioned at least two ownership place；
If above-mentioned EMRM passes through MSC, above-mentioned first ownership place of the above-mentioned first main dial request and above-mentioned first ownership place First message transponder when establishing the first connection failure, the above method further include:
Above-mentioned EMRM is forwarded by above-mentioned first for the MSC of dial request and above-mentioned second ownership place, above-mentioned third message Device establishes third connection, and determines whether above-mentioned third connection is successfully established；
If so, any gateway of the above-mentioned EMRM into above-mentioned communication disaster tolerance system initiates registration request, so that on State EMRM successful registration in the second gateway in above-mentioned communication disaster tolerance system.
If it is not, above-mentioned EMRM passes through the MSC of the above-mentioned second main dial request and above-mentioned first ownership place, above-mentioned first ownership The second message transponder on ground establishes the second connection.
Further, above-mentioned EMRM is by above-mentioned first for the MSC of dial request and above-mentioned second ownership place, above-mentioned third Message forwarder is established before third connection, the above method further include:
Above-mentioned EMRM continues through the MSC of the above-mentioned first main dial request and above-mentioned first ownership place, above-mentioned first ownership The first message transponder on ground re-establishes the first connection, and records current first and redial number；
Above-mentioned EMRM judges that above-mentioned first redials whether number is greater than the first preset threshold；
If so, above-mentioned EMRM is by above-mentioned first for the MSC of dial request and above-mentioned second ownership place, above-mentioned third message Transponder establishes third connection.
Further, if failure is established in the connection of above-mentioned third, the above method further include:
Above-mentioned EMRM continues through above-mentioned first for the MSC of dial request and above-mentioned second ownership place, above-mentioned third message Transponder re-establishes third connection, and records current second and redial number；
Above-mentioned EMRM judges that above-mentioned second redials whether number is greater than the second preset threshold；
If so, above-mentioned EMRM is returned by the MSC of the above-mentioned second main dial request and above-mentioned first ownership place, above-mentioned first The second message transponder in possession establishes the second connection.
Further, above-mentioned second wireless communication module also corresponding second is for dial request, and above-mentioned second for dial request It is corresponding with the 4th message forwarder of the second ownership place in above-mentioned at least two ownership place；
If above-mentioned EMRM passes through MSC, above-mentioned first ownership place of the above-mentioned second main dial request and above-mentioned first ownership place Second message transponder when establishing the second connection failure, the above method further include:
Above-mentioned EMRM is forwarded by above-mentioned second for the MSC of dial request and above-mentioned second ownership place, above-mentioned 4th message Device establishes the 4th connection, and determines whether above-mentioned 4th connection is successfully established；
If so, any gateway of the above-mentioned EMRM into above-mentioned communication disaster tolerance system initiates registration request, so that on EMRM is stated to succeed in registration in the third gateway in above-mentioned communication disaster tolerance system.
Further, above-mentioned EMRM is by above-mentioned second for the MSC of dial request and above-mentioned second ownership place, the above-mentioned 4th Message forwarder is established before the 4th connection, the above method further include:
Above-mentioned EMRM continues through the MSC of the above-mentioned second main dial request and above-mentioned first ownership place, above-mentioned first ownership The second message transponder on ground re-establishes the second connection, and records current third and redial number；
Above-mentioned EMRM judges that above-mentioned third redials whether number is greater than third predetermined threshold value；
If so, above-mentioned EMRM by above-mentioned second for dial request and above-mentioned second ownership place MSC, the above-mentioned 4th disappear Breath transponder establishes the 4th connection.
Second aspect of the present invention provides a kind of EMRM, is suitable for communication disaster tolerance system, above-mentioned communication disaster tolerance system includes upper The MSC of EMRM and at least two ownership place connecting with above-mentioned EMRM are stated, each ownership place includes at least two message forwarders With at least two gateways, the number of above-mentioned message forwarder is identical as the number of above-mentioned gateway；Above-mentioned EMRM includes Sending module, judgment module, determining module；
Above-mentioned sending module, for determining the in above-mentioned EMRM and above-mentioned at least two ownership place when above-mentioned determining module The MSC of one ownership place, above-mentioned first ownership place first message transponder be successfully established connection, and above-mentioned EMRM is in above-mentioned communication When succeeding in registration in the first gateway in disaster tolerance system, the detection request of Xiang Shangshu the first gateway transmission link；
Above-mentioned judgment module, the response for judging whether to receive above-mentioned first gateway transmission in preset duration Message；
Above-mentioned determining module, for judging to be not received by above-mentioned first gateway in preset duration when above-mentioned judgment module When the response message that equipment is sent, current communications link disconnection is confirmed.
Further, above-mentioned EMRM further includes the first wireless communication module and the second wireless communication module, above-mentioned first nothing Line communication module corresponds to the first main dial request, 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 transponder；Above-mentioned second main dial request and above-mentioned second message transponder It is corresponding；
Above-mentioned first wireless communication module, for by the above-mentioned first main dial request and above-mentioned first ownership place MSC, The first message transponder of above-mentioned first ownership place establishes the first connection, and above-mentioned first connection is successfully established；
Above-mentioned second wireless communication module, for passing through after above-mentioned determining module determines current communications link disconnection The MSC of above-mentioned second main dial request and above-mentioned first ownership place, the second message transponder of above-mentioned first ownership place establish the Two connections.
Further, above-mentioned first wireless communication module also corresponding first is for dial request, and the above-mentioned first standby dialing is asked Ask corresponding with the third message forwarder of the second ownership place in above-mentioned at least two ownership place；
Above-mentioned first wireless communication module is also used to ask in above-mentioned first wireless communication module by the above-mentioned first main dialing It asks when establishing the first connection failure with the first message transponder of the MSC of above-mentioned first ownership place, above-mentioned first ownership place, passes through Above-mentioned first establishes third company for the third message forwarder of the MSC of dial request and above-mentioned second ownership place, the second ownership place It connects,
Above-mentioned determining module, is also used to determine whether above-mentioned third connection is successfully established；
Above-mentioned sending module is also used to lead to when above-mentioned determining module determines that above-mentioned third connection is successfully established to above-mentioned Believe disaster tolerance system in any gateway initiate registration request so that above-mentioned EMRM in above-mentioned communication disaster tolerance system second Successful registration in gateway；
Above-mentioned second wireless communication module is also used to when above-mentioned determining module determines that failure is established in above-mentioned third connection, It is built by the above-mentioned second main dial request and the MSC of above-mentioned first ownership place, the second message transponder of above-mentioned first ownership place Vertical second connection.
Further, above-mentioned first wireless communication module, be also used to by above-mentioned first for dial request and above-mentioned the The MSC of two ownership place, above-mentioned third message forwarder establish third connection before, continue through the above-mentioned first main dial request with The MSC of above-mentioned first ownership place, above-mentioned first ownership place first message transponder re-establish the first connection, and record current First redial number；
Above-mentioned judgment module is also used to judge that above-mentioned first redials whether number is greater than the first preset threshold；
Above-mentioned first wireless communication module is also used to judge that above-mentioned first redials number greater than first in above-mentioned judgment module When preset threshold, established by above-mentioned first for the MSC of dial request and above-mentioned second ownership place, above-mentioned third message forwarder Third connection.
Further, above-mentioned first wireless communication module is also used to determine that above-mentioned third connection is built in above-mentioned determining module When vertical failure, above-mentioned first is continued through for MSC, the above-mentioned third message forwarder weight of dial request and above-mentioned second ownership place Third connection is newly established, and records current second and redials number；
Above-mentioned judgment module is also used to judge that above-mentioned second redials whether number is greater than the second preset threshold；
Above-mentioned second wireless communication module is also used to judge that above-mentioned second redials number greater than second in above-mentioned judgment module When preset threshold, disappeared by the above-mentioned second main dial request and the MSC of above-mentioned first ownership place, the second of above-mentioned first ownership place Breath transponder establishes the second connection.
Further, above-mentioned second wireless communication module also corresponding second is for dial request, and above-mentioned second for dial request It is 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 is also used to ask in above-mentioned second wireless communication module by the above-mentioned second main dialing It asks when establishing the second connection failure with the second message transponder of the MSC of above-mentioned first ownership place, above-mentioned first ownership place, passes through Above-mentioned second establishes the 4th and connect for dial request with the MSC of above-mentioned second ownership place, above-mentioned 4th message forwarder；
Above-mentioned determining module, is also used to determine whether above-mentioned 4th connection is successfully established；
Above-mentioned sending module is also used to lead to when above-mentioned determining module determines that above-mentioned 4th connection is successfully established to above-mentioned Believe that any gateway in disaster tolerance system initiates registration request, so that third of the above-mentioned EMRM in above-mentioned communication disaster tolerance system It succeeds in registration in gateway.
Further, above-mentioned second wireless communication module is also used to passing through above-mentioned second for dial request and above-mentioned second The MSC of ownership place, above-mentioned 4th message forwarder establish the 4th connection before, continue through the above-mentioned second main dial request with it is upper The second message transponder of the MSC, above-mentioned first ownership place that state the first ownership place re-establish the second connection, and record currently Third redials number；
Above-mentioned judgment module is also used to judge that above-mentioned third redials whether number is greater than third predetermined threshold value；
Above-mentioned second wireless communication module is also used to judge that above-mentioned third redials number greater than third in above-mentioned judgment module When preset threshold, established by above-mentioned second for the MSC of dial request and above-mentioned second ownership place, above-mentioned 4th message forwarder 4th connection.
Train-ground communication method provided by the invention and EMRM, when the first ownership place in EMRM and at least two ownership place MSC, above-mentioned first ownership place first message transponder be successfully established connection, and above-mentioned EMRM in communication disaster tolerance system the When succeeding in registration in one gateway, above-mentioned EMRM is detected to above-mentioned first gateway transmission link and is requested；And judge pre- If whether receiving the response message that above-mentioned first gateway is sent in duration；If it is not, then above-mentioned EMRM determines present communications Link disconnection.In this way, since above-mentioned preset duration is short enough, train-ground communication method provided by the invention and EMRM can be quasi- Really, judge in time current communications link whether failure, and then can be re-established in time logical after current communications link failure Believe link, it is ensured that the safe operation of train.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.
Fig. 1 is the schematic diagram of present invention communication 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 schematic diagram of EMRM embodiment one of the present invention；
Figure 10 is the structural schematic diagram of EMRM embodiment two of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Train-ground communication method provided by the invention and EMRM, to solve in existing train-ground communication method, MSC turns message The link failure of hair device there are problems that being unable to judge accurately.
Train-ground communication method provided by the invention, can be applied to the communication between train and station.Optionally, the present invention mentions The train-ground communication method of confession can be adapted for communicating in disaster tolerance system, which includes enhanced mobile wireless module EMRM The mobile switching centre of (Enhanced Mobile Radio Module) and at least two ownership place being connect with above-mentioned EMRM MSC (Mobile Switch Center), each ownership place include at least two message forwarders and at least two gateways, The number of message forwarder is identical as the number of above-mentioned gateway.
Specifically, Fig. 1 is the schematic diagram of present invention communication disaster tolerance system embodiment one.As shown in Figure 1, the present embodiment provides Communication disaster tolerance system, the MSC including EMRM and two ownership place connecting with above-mentioned EMRM, above-mentioned two MSC belong to respectively In Xining and Lhasa, the present embodiment, the MSC for belonging to Xining is expressed as Xining MSC, the MSC for belonging to Lhasa is indicated For Lhasa MSC, wherein be provided with two message forwarders Router-A and Router- connecting with Xining MSC within the border in Xining B and two gateway GN-A and GN-B；It is provided with two message forwarders connecting with Lhasa MSC within the border in Lhasa Router-C and Router-D and two gateway GN-C and GN-D.
Technical solution of the present invention is described in detail with specific embodiment below.These specific implementations below Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
It should be noted that term " first ", " second " in description and claims of this specification and attached drawing, " third ", " 4th " etc. are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage Solution, such use can be interchanged in appropriate circumstances.
Fig. 2 is the flow chart of train-ground communication embodiment of the method one of the present invention.Referring to figure 2., vehicle provided in this embodiment Communication means, comprising:
S101, disappear when the EMRM and MSC of the first ownership place at least two ownership place, the first of above-mentioned first ownership place Breath transponder is successfully established connection, and above-mentioned EMRM succeeds in registration in the first gateway in above-mentioned communication disaster tolerance system When, EMRM is detected to the first gateway transmission link and is requested.
In this step, for example, it may be the message forwarder Router-A of the EMRM and MSC in Xining, Xining are successfully established Connection, and EMRM succeeds in registration on the gateway GN-B in Xining, at this point, setting up transmission between EMRM and gateway GN-B Tunnel, EMRM are detected to the gateway GN-B transmission link in Xining and are requested, i.e., the first ownership place at this time is Xining, and first The MSC of ownership place is Xining MSC, and the first gateway is the gateway GN-B in Xining.Certainly, in this step, The message forwarder Router-C of the MSC, Lhasa that can be EMRM and Lhasa are successfully established connection, and above-mentioned EMRM is in Xining It succeeds in registration on gateway GN-A, at this point, EMRM and gateway GN-A set up transmission tunnel, gateway of the EMRM to Xining The detection request of equipment GN-A transmission link, i.e., the first ownership place at this time is Lhasa, and the MSC of the first ownership place is Lhasa MSC, the first gateway are the gateway GN-A in Xining.
That is, the first ownership place can refer to Xining in this step, it can also refer to Lhasa.Correspondingly, when the first ownership When ground is Xining, the second ownership place is just Lhasa.That is, all ownership place that connection can be successfully established with EMRM, i.e., It can be described as the first ownership place.Turn in addition, the first message transponder of the first ownership place can be two message in the ownership place Send out any one in device.And it communicates the first gateway in disaster tolerance system and then can be any of communication disaster tolerance system The gateway that EMRM can succeed in registration；According to above-mentioned lifted example, which can be the gateway in Xining Equipment GN-A, GN-B, Lhasa gateway GN-C, GN-D in any one.
S102, above-mentioned EMRM judge the response message that the transmission of the first gateway whether is received in preset duration.If It is no, then execute S103.
Specifically, the present embodiment is not defined the occurrence of preset duration.
It should be noted that when EMRM is requested to the regular transmission link detection of the first gateway, if current communications link Normally, then the first gateway can send response message, also, EMRM to EMRM immediately when receiving link detecting request The response message of the first gateway transmission can be received in preset duration.And when current communications link exception or disconnection, When EMRM is detected to the first gateway transmission link to be requested, due to current communications link exception or disconnection, the first gateway is set It is standby not receive above-mentioned link detecting request, either, even if the first gateway receives above-mentioned link detecting and asks It asks, and has sent response message to EMRM immediately, but due to current communications link exception or chain rupture, EMRM 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 to be not received by the transmission of the first gateway in preset duration Response message, then in this step, EMRM determines current communications link disconnection.
The train-ground communication method of the prior art carries out breakdown judge by link of the MSC to message forwarder.But it is real In the case of border, MSC there are problems that judging accurately, in time to the link failure of message forwarder.
Train-ground communication method provided in this embodiment, when the first ownership place in EMRM and at least two ownership place MSC, The first message transponder of above-mentioned first ownership place is successfully established connection, and first net of the above-mentioned EMRM in communication disaster tolerance system When succeeding in registration in the equipment of pass, above-mentioned EMRM is periodically detected to above-mentioned first gateway transmission link and is requested；And judge pre- If whether receiving the response message that above-mentioned first gateway is sent in duration；If it is not, then above-mentioned EMRM determines present communications Link disconnection.In this way, since above-mentioned preset duration is short enough, train-ground communication method provided in this embodiment, can it is accurate, Judge in time current communications link whether failure, and then communication can be re-established in time after current communications link failure Link, it is ensured that the safe operation of train.
Train-ground communication method provided in this embodiment, can judge accurately and in time current communications link whether failure, in turn Communication link can be re-established in time after current communications link failure, it is ensured that the safe operation of train.
Fig. 3 is the flow chart of train-ground communication embodiment of the method two of the present invention.On the basis of the above embodiments, the present embodiment What is involved is after current communications link disconnection, the process of communication link is re-established.
Firstly, we first simply introduce the present embodiment before introducing train-ground communication method provided in this embodiment The communication disaster tolerance system of offer.First, referring to fig. 1, specifically, and in the communication disaster tolerance system, EMRM is to pass through Sending dialled number Request establishes connection with message forwarder, wherein the message forwarder of Xining and Lhasa all has specified dialed number, example Such as, the dialed number of the Router-A in Xining is DIAL-A, and the dialed number of Router-B is DIAL-B；The Router-C of Lhasa Dialed number be DIAL-C, the dialed number of Router-D is DIAL-D.It should be noted that working as EMRM calling dial number When DIAL-A, either Xining MSC receives above-mentioned call request or Lhasa MSC receives above-mentioned call request, finally all Above-mentioned call request can be transmitted to the Router-A in Xining by Xining MSC, so that the EMRM and Router-A in Xining is established Connection.Similarly, as EMRM calling dial number DIAL-B, either Xining MSC receives above-mentioned call request, or draws Sa MSC receives above-mentioned call request, and above-mentioned call request finally can be all transmitted to the Router- in Xining by Xining MSC B, so that EMRM and the Router-B in Xining establish connection.Similarly, EMRM can pass through the Rotuer- of calling DIAL-C and Lhasa C establishes connection；Connection is established by the Router-D of calling DIAL-D and Lhasa.
Secondly, EMRM includes the first wireless communication module and the second wireless communication module, above-mentioned first nothing in the present embodiment Line communication module corresponds to the first main dial request, the corresponding second main dial request of above-mentioned second wireless communication module.
It should be noted that the wireless module in EMRM can pass through main dialing after user is that EMRM has configured ownership place Request establishes connection with above-mentioned user for the message forwarder in the configured ownership place of EMRM.For example, when user matches for EMRM Set ownership place be Xining when, correspondingly, for the first wireless communication module configure the first main dialed number DIAL-A；It is wireless for second Communication module configures the second main dialed number DIAL-B.In this way, the first wireless communication module can pass through the main dialing number of calling first Code DIAL-A sends the first main dial request, due to the dialed number for the Router-A that the first main number of dialling the number is Xining, at this point, The MSC that the MSC in either Xining receives the above-mentioned first main dial request or Lhasa, which receives the above-mentioned first main dialing, to be asked It asks, last above-mentioned first main dial request can be transmitted to the Router-A in Xining by the MSC in Xining, in this way, the first channel radio Letter module will establish connection with the Router-A in Xining.I.e. when being Xining for EMRM configuration ownership place, EMRM can pass through master Dial request and the message forwarder in Xining establish connection.Correspondingly, the second wireless communication module can be dialled by the way that calling second is main Number number DIAL-B sends the second main dial request, establishes connection with the Router-B in Xining.I.e. when for EMRM configure ownership place When for Xining, EMRM can establish connection by the message forwarder of main dial request and Xining.Again for example: when user matches for EMRM When to set ownership place be Lhasa, at this point, being second wireless for the first main dialed number DIAL-C of the first wireless communication module configuration Communication module configures the second main dialed number DIAL-D；In this way, the first wireless communication module can pass through the main dialing number of calling first Code DIAL-C sends the first main dial request, due to the dialed number for the Router-C that the first main dialed number is Lhasa, at this point, First wireless communication module will establish connection by the Router-C of calling DIAL-C and Lhasa, i.e., belong to when for EMRM configuration When ground is Lhasa, EMRM can establish connection by the message forwarder of main dial request and Lhasa.In this way, by wireless for first Communication module configures the first main dialed number, keeps the first wireless communication module corresponding with the first main dial request, by being second Wireless communication module configures the second main dialed number, keeps the second wireless communication module corresponding with the second main dial request, also, by In the dialed number that the first main dialed number is first message transponder, in this way, just making the first main dial request and first message Transponder is corresponding；It is the dialed number of second message transponder accordingly, due to the second main dialed number, in this way, just making second Main dialed number is corresponding with second message transponder.
It should be noted that following each embodiment is to illustrate this for EMRM configuration ownership place is Xining by user The technical solution of invention.
After describing communication disaster tolerance system provided by the invention, below we come with introducing vehicle provided in this embodiment Communication means.Referring to figure 3., specifically, train-ground communication method provided in this embodiment, comprising:
S201, EMRM are forwarded by the first message of the MSC of the first main dial request and the first ownership place, the first ownership place Device establishes the first connection, and above-mentioned first connection is successfully established；Above-mentioned first main dial request and above-mentioned first message transponder It is corresponding；And above-mentioned EMRM, when succeeding in registration on communicating the first gateway in disaster tolerance system, above-mentioned EMRM is periodically to above-mentioned The detection request of first gateway transmission link.
It specifically, is Lhasa by Xining, the second ownership place of the first ownership place, and with the Router-A in the first ownership place For the specific implementation process for illustrating this step for first message transponder.
In this step, EMRM calls DAIL-A by the first wireless communication module and sends the first main dial request and Xining Router-A establishes connection.Specifically, EMRM calls DAIL-A by the first wireless communication module, at this point, when Xining MSC is received To the above-mentioned first main dial request, the 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, which 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 are received When stating the first main dial request, at this point, the above-mentioned first main dialing is asked by the relatively early MSC for receiving the above-mentioned first main dial request Seek the Router-A for being transmitted to Xining；And when Xining MSC and Lhasa MSC receive above-mentioned first main dial request simultaneously, then Above-mentioned first main dial request is transmitted to the Router-A in Xining by Xining MSC.In this way, EMRM is sent by calling DIAL-A First main dial request, and pass through the first message transponder Router-A of the above-mentioned first main dial request and Xining MSC, Xining Establish the first connection.
S202, EMRM judge the response message that the transmission of the first gateway whether is received in preset duration.If it is not, then Execute S203.
The specific implementation of the step is such as step S102 in embodiment one, and details are not described herein again.
S203, above-mentioned EMRM determine current communications link disconnection；
In this step, if EMRM judges the response message for being not received by the transmission of the first gateway in preset duration, Then determine the first connection disconnection.
S204, above-mentioned EMRM pass through the MSC of the above-mentioned second main dial request and above-mentioned first ownership place, above-mentioned first ownership The second message transponder on ground establishes the second connection；Wherein, the above-mentioned second main dial request and above-mentioned second message transponder pair It answers.
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 the second message transponder Router-B in Xining establishes the second connection.Tool Body, EMRM calls DAIL-B by the second wireless communication module, at this point, asking when Xining MSC receives the above-mentioned second main dialing When asking, the 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 When two main dial requests, which can be transmitted to Xining MSC by Lhasa MSC, and then by Xining MSC by above-mentioned Two main dial requests are transmitted to the Router-B in Xining.At this point, EMRM sends the second main dial request by calling DIAL-B, and The second connection is established by the second message transponder Router-B of the above-mentioned second main dial request and Xining MSC, Xining.
In the prior art, when current communications link disconnection, OBC control MRM re-starts dialing and builds company, at this point, working as MSC When receiving above-mentioned dial request, above-mentioned dial request can be transmitted to first disappearing for being closer of being connected with above-mentioned MSC by MSC Transponder is ceased, if above-mentioned message forwarder failure, above-mentioned dial request can be transmitted to another coupled message by MSC Transponder, and after MSC detects the message forwarder also failure, dial request can be transferred to strange land MSC by MSC, by strange land MSC is handled.But in the prior art, dial request is being transmitted to it after detecting message forwarder failure by MSC There is forwarding during message forwarder not in time in him.But in the present embodiment, when EMRM determines that current ink is disconnected Lian Hou, EMRM can be turned by the second message of the MSC of the second main dial request and above-mentioned first ownership place, above-mentioned first ownership place Hair device establishes the second connection, in this way, EMRM can establish reserve link immediately after current ink disconnection, can avoid because current logical After believing link failure, the unsafe problem of driving caused by new communication link can not be established in time.
Train-ground communication method provided in this embodiment, when EMRM by the MSC of the first main dial request and the first ownership place, After the first message transponder of first ownership place establishes the first connection, and above-mentioned first connection is successfully established, and above-mentioned EMRM exists When succeeding in registration in the first gateway in communication disaster tolerance system, above-mentioned EMRM is periodically to above-mentioned first gateway send chain Road detection request；After EMRM determines current communications link disconnection, EMRM can be returned by the second main dial request with above-mentioned first The MSC in possession, above-mentioned first ownership place second message transponder establish the second connection；Wherein, the above-mentioned second main dial request It is corresponding with above-mentioned second message transponder.In this way, EMRM can establish reserve link immediately after current communications link disconnection, it can It avoids because after current communications link failure, the unsafe problem of driving caused by new communication link can not be established 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 the above embodiments, the present embodiment What is involved is when EMRM by the MSC of the above-mentioned first main dial request and above-mentioned first ownership place, above-mentioned first ownership place the When one message forwarder establishes the first connection failure, EMRM by first for dial request and the second ownership place MSC, second return The third message forwarder in possession establishes the detailed process of third connection.
We still first introduce communication disaster tolerance system provided in this embodiment below.Specifically, in this implementation, when with Family is EMRM configuration ownership place when being Xining, other than for the first main dialed number DIAL-A of the first wireless communication module configuration, It is also the configuration first of the first wireless communication module for dialed number DIAL-C.In this way, when the first wireless communication module passes through calling First main dialed number DAIL-A sends the first main dial request and the message forwarder Router-A in Xining establishes the first connection When failure, the first wireless communication module can send first for dialed number DIAL-C by calling first for dial request, due to The first standby number of dialling the number DIAL-C is the dialed number of the third message forwarder Router-C of Lhasa, in this way, the first channel radio Letter module can establish connection by first for the third message forwarder Router-C of dial request and Lhasa.
It should be noted that after user is that EMRM has configured ownership place, EMRM can be with user by standby dial request Message forwarder in the different ownership place of the configured ownership place of EMRM establishes connection.For example, when user is that EMRM configuration is returned When possession is Xining, EMRM can establish connection by the message forwarder of standby dial request and Lhasa.
After describing communication disaster tolerance system provided by the invention, below we come with introducing vehicle provided in this embodiment Communication means, on the basis of example 2, if EMRM passes through the above-mentioned first main dial request and above-mentioned first ownership place First message transponder when establishing the first connection failure of MSC, above-mentioned first ownership place, train-ground communication side provided in this embodiment Method, further includes:
S301, EMRM are forwarded by first for the third message of the MSC of dial request and the second ownership place, the second ownership place Device establishes third connection, and determines whether above-mentioned third connection is successfully established, if so, S302 is thened follow the steps, if it is not, then executing Step S303.
Specifically, in the step, if EMRM by the first wireless communication module call the first main dialed number DIAL-A with Xining MSC, Xining first message transponder Router-A when establishing the first connection failure, EMRM can pass through the first wireless communication Calls first are established third for the third message forwarder Router-C of dialed number DIAL-C and Lhasa MSC, Lhasa and are connected It connects, and determines whether above-mentioned third connection is successfully established.
Any gateway of S302, above-mentioned EMRM into above-mentioned communication disaster tolerance system initiates registration request, so that above-mentioned EMRM successful registration in the second gateway in above-mentioned communication disaster tolerance system.
In this step, after the connection of above-mentioned third is successfully established, EMRM first passes through above-mentioned third and connects to Lhasa Gateway GN-C is registered, if EMRM is registered to GN-C, registration failure, at this moment, EMRM will continue to set to gateway Standby GN-C is registered, and records the number of continuous registration failure, when time of the EMRM to the continuous registration failure of gateway GN-C When number is greater than the first setting value, EMRM can be connected by above-mentioned third and be registered to the gateway GN-D of Lhasa；If EMRM When being registered to GN-D, registration failure at this point, EMRM will continue to be registered to gateway GN-D, and records continuous note The number of volume failure, when EMRM is greater than the second setting value to the number of the continuous registration failure of gateway GN-D, EMRM then can It connects again by above-mentioned third to gateway GN-C and is registered.In this process, if EMRM is infused to GN-C and GN-D When volume, equal registration failure, and the number of when EMRM is registered to GN-C continuous registration failure and EMRM are registered to GN-D When the sum of number of Shi Lianxu failure is greater than third setting value, EMRM can be connected by above-mentioned third the gateway to Xining after It is continuous to be registered, until succeeding in registration.In this way, by the way that multiple gateways are arranged, when one of gateway device failure, EMRM can complete to register by other gateways, and then by asking to the gateway transmission link detection succeeded in registration Ask, with determine current communications link whether failure.
It should be noted that if EMRM is initiated according to all gateways of the above-mentioned order into above-mentioned communication disaster tolerance system When registration request, equal registration failure, at this point, EMRM can determine the equal failure of all gateways in above-mentioned communication disaster tolerance system, At this time, it may be necessary to be repaired to the gateway in above-mentioned communication disaster tolerance system.
S303, above-mentioned EMRM pass through the MSC of the above-mentioned second main dial request and above-mentioned first ownership place, above-mentioned first ownership The second message transponder on ground establishes the second connection.
In this step, when above-mentioned third, which connects, establishes failure, EMRM can call DIAL- by the second wireless communication module B sends the second main dial request and the second message transponder Router-B of Xining MSC, Xining establish the second connection.
Train-ground communication method provided in this embodiment is asked when EMRM sends the first main dialing by the first wireless communication module It asks when establishing the first connection failure with first message transponder, EMRM can also be sent first by the first wireless communication module and standby be dialled Number request is established third with third message forwarder and is connect, and when EMRM establishes connection failure with third message forwarder, EMRM can also send the MSC of the second main dialed number and the first ownership place, the first ownership place by the second wireless communication module Second message transponder establishes the second connection.In this way, in the first wireless communication module failure or first message transponder or third When message forwarder failure, EMRM can run through the second wireless communication module and second message transponder establishes the second connection, It can avoid influencing 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 the above embodiments, the present embodiment What is involved is when EMRM by the MSC of the above-mentioned first main dial request and above-mentioned first ownership place, above-mentioned first ownership place the When one message forwarder establishes the first connection failure, before EMRM establishes corresponding connection by first for dial request, EMRM after It is continuous to pass through the MSC of the above-mentioned first main dial request and above-mentioned first ownership place, the first message transponder of above-mentioned first ownership place The first connection is established, and records current first and redials number, and redial number by first and judge whether by above-mentioned first Standby dial request establishes the detailed process that third is connect with the MSC of above-mentioned second ownership place, above-mentioned third message forwarder.In reality On the basis of applying example three, train-ground communication method provided in this embodiment, further includes:
S401, above-mentioned EMRM continue through the MSC of the above-mentioned first main dial request and above-mentioned first ownership place, above-mentioned first The first message transponder of ownership place re-establishes the first connection, and records current first and redial number.
Specifically, when EMRM sends first main group by the main dialed number DAIL-A of the first wireless communication module calling first Number request, when establishing the first connection failure with the first message transponder Router-A in Xining MSC, Xining, in this step, EMRM Continue through the first main dialed number DAIL-A of the first wireless communication module calling and send the first main dial request, with Xining MSC, The first message transponder Router-A in Xining re-establishes the first connection, and records current first and redial number.
S402, above-mentioned EMRM judge that above-mentioned first redials whether number is greater than the first preset threshold, if so, thening follow the steps S403；
Specifically, in this step, the occurrence of the first preset threshold is not defined.
S403, above-mentioned EMRM are by above-mentioned first for the MSC of dial request and above-mentioned second ownership place, above-mentioned third message Transponder establishes third connection.
Specifically, if in step S402, EMRM judges first when redialing number greater than the first preset threshold, in the step In, EMRM is by the first wireless communication module calling first for the third message forwarder of dialed number DAIL-C and Lhasa Router-C establishes third connection, and the correlated process for establishing third connection may refer to the description of above-mentioned S301 to S303, herein It repeats no more.
Train-ground communication method provided in this embodiment is asked when EMRM sends the first main dialing by the first wireless communication module It asks when establishing the first connection failure with first message transponder, EMRM, which continues through the first wireless communication module and sends first, main to be dialled Number request establishes the first connection with first message transponder, and records current first and redial number, and to redial number big when first When the first preset threshold, EMRM sends first by the first wireless communication module and builds for dial request and third message forwarder Vertical third connection.In this way, when first message transponder failure, EMRM and first message transponder establish the first connection failure, EMRM can run through the first wireless communication module calling first and establish third with third message forwarder for dial request and connect, It can avoid that communication link is made to be in disconnected state for a long time because of first message transponder failure, and then can avoid because of communication link The safety of driving is influenced in disconnected state for a long time.
Fig. 6 is the flow chart of train-ground communication embodiment of the method five of the present invention.What the present embodiment was related to establishes when third connects When failure, EMRM continues through above-mentioned first for MSC, the above-mentioned third message forwarder of dial request and above-mentioned second ownership place Third connection is re-established, and records current second and redials number, and redial number by second and judge whether by above-mentioned Second main dial request establishes the second company with the MSC of above-mentioned first ownership place, the second message transponder of above-mentioned first ownership place The detailed process connect.On the basis of example IV, train-ground communication method provided in this embodiment, further includes:
S501, above-mentioned EMRM continue through above-mentioned first for the MSC of dial request and above-mentioned second ownership place, above-mentioned third Message forwarder re-establishes third connection, and records current second and redial number；
In this step, EMRM continues through the first wireless communication module calling first and sends first for dialed number DAIL-C Standby dial request and the third message forwarder Router-C of Lhasa establish third connection.
S502, above-mentioned EMRM judge that above-mentioned second redials whether number is greater than the second preset threshold, if so, thening follow the steps S503。
In this step, the occurrence of the second preset threshold is not defined.
S503, above-mentioned EMRM pass through the MSC of the above-mentioned second main dial request and above-mentioned first ownership place, above-mentioned first ownership The second message transponder on ground establishes the second connection.
In this step, if EMRM judges above-mentioned second when redialing number greater than the second preset threshold, EMRM passes through the second nothing Line communication module calls the second main dialed number DAIL-B and Xining MSC, the second message transponder Router-B in Xining is established Second connection.
Train-ground communication method provided in this embodiment is asked when EMRM sends the first standby dialing by the first wireless communication module It asks when establishing third connection failure with third message forwarder, EMRM, which continues through the first wireless communication module and sends first, standby to be dialled Number request is established third with third message forwarder and connect, and record currently second redial number, to redial number big when second When the second preset threshold, EMRM sends the second main dial request by the second wireless communication module and builds with second message transponder Vertical second connection.In this way, when third message forwarder failure, EMRM and third message forwarder establish third connection failure, EMRM can run through the second wireless communication module the second main dial request of calling and second message transponder establishes the second connection, It can avoid that communication link is made to be in disconnected state for a long time because of third message forwarder failure, and then can avoid because of communication link The safety of driving is influenced in disconnected state for a long time.
Fig. 7 is the flow chart of train-ground communication embodiment of the method six of the present invention.What is involved is current communications links for the present embodiment Chain rupture, and when the second message transponder of EMRM and the first ownership place establishes the second connection and also fails, EMRM is wireless by second Communication module calling second establishes for the 4th message forwarder of the MSC of dialed number and the second ownership place, the second ownership place The detailed process of four connections.
Communication disaster tolerance system provided in this embodiment is first introduced below.Specifically, within the system, user is also the second nothing Line communication module is configured with second for dialed number, and on the basis of the above embodiments, in this implementation, user is the second channel radio Letter module is configured with second for dialed number DAIL-D.In this way, when EMRM is dialled by the way that the second wireless communication module calling second is main Number number DIAL-B and Xining MSC, Xining message forwarder Router-B when establishing the second connection failure, EMRM can also pass through Second wireless communication module calls the 4th message forwarder of the second backup dialup number DAIL-D and Lhasa MSC, Lhasa Router-D establishes connection.
Introduce train-ground communication method provided in this embodiment below.Fig. 7 is please referred to, on the basis of example 2, when After EMRM determines current communications link disconnection, and EMRM passes through the above-mentioned second main dial request and above-mentioned first ownership place Second message transponder when establishing the second connection failure of MSC, above-mentioned first ownership place, train-ground communication side provided in this embodiment Method, further includes:
S601, above-mentioned EMRM are by above-mentioned second for the MSC of dial request and above-mentioned second ownership place, above-mentioned 4th message Transponder establishes the 4th connection, and determines whether above-mentioned 4th connection is successfully established, if so, thening follow the steps S602.
Specifically, in the present embodiment, after EMRM determines current communications link disconnection, and EMRM passes through the second channel radio Believe the main dialed number DAIL-B of calls second and Xining MSC, the second message transponder Router-B in Xining establishes second When connection failure, in this step, EMRM can also by the second wireless communication module call second for dialed number DAIL-D with Lhasa MSC, Lhasa the 4th message forwarder Router-D establish the 4th connection.
Any gateway of S602, above-mentioned EMRM into above-mentioned communication disaster tolerance system initiates registration request, so that above-mentioned EMRM succeeds in registration in the third gateway in above-mentioned communication disaster tolerance system.
Specifically, in this step, if EMRM by the second wireless communication module calling second for dialed number DAIL-D with Lhasa MSC, Lhasa the 4th message forwarder Router-D be successfully established the 4th connection.At this point, EMRM can be first by above-mentioned 4th connects and is registered to the gateway GN-D of Lhasa, if EMRM is registered to GN-D, after registration failure, and EMRM meeting Continue to be registered to gateway GN-D, and record the number of continuous registration failure, when MRM is continuously infused to gateway GN-D When the number of volume failure is greater than the first setting value, EMRM can then be connected to the gateway GN-C of Lhasa by the above-mentioned 4th and be carried out Registration, if EMRM is registered to GN-C, after registration failure, EMRM will continue to be registered to gateway GN-C, and remember The number for recording continuous registration failure, when EMRM will continue to be greater than the second setting to the number of the continuous registration failure of gateway GN-C When value, EMRM is then connected to the gateway GN-D of Lhasa again by above-mentioned third and is registered.In this process, if When EMRM is registered to GN-D and GN-C, equal registration failure, and the number and EMRM that when EMRM is registered to GN-D continuously fails When the sum of number continuously to fail when being registered to GN-C is greater than third setting value, EMRM can be by above-mentioned 4th connection westwards Peaceful gateway is registered, until succeeding in registration.
In this way, when one of gateway device failure, EMRM can pass through other nets by the way that multiple gateways are arranged It closes equipment and completes registration, and then by being requested to the gateway transmission link detection succeeded in registration, to determine present communications chain Road whether failure.
It should be noted that if EMRM is initiated according to all gateways of the above-mentioned order into above-mentioned communication disaster tolerance system When registration request, if equal registration failure, at this point, EMRM can determine the event of all gateways in above-mentioned communication disaster tolerance system Barrier, at this time, it may be necessary to be repaired to the gateway in above-mentioned communication disaster tolerance system.
Train-ground communication method provided in this embodiment, when current communications link disconnection, and EMRM passes through the second wireless communication MSC, above-mentioned first ownership place of the main dialed number of calls second transmission the second main dial request and above-mentioned first ownership place Second message transponder when establishing the second connection failure, EMRM is again by the standby dialing of the second wireless communication module calling second Number sends second and establishes the 4th company for the 4th message forwarder of the MSC of dial request and the second ownership place, the second ownership place It connects.In this way, EMRM can be by second for the MSC of dial request and the second ownership place, second in second message transponder failure 4th message forwarder of ownership place establishes the 4th connection, can avoid making communication link can not because of second message transponder failure It establishes in time, and then can avoid influencing the safety of driving because communication link is in disconnected state for a long time.
Fig. 8 is the flow chart of train-ground communication embodiment of the method seven of the present invention.On the basis of the above embodiments, the present embodiment What is involved is after current communications link disconnection, and the second message transponder of EMRM and the first ownership place is established the second connection and is also lost When losing, EMRM continues through the MSC of the second main dial request and the first ownership place, the second message forwarding of the first ownership place is thought highly of Newly establish the second connection, and record current third and redial number, and by third redial number judge whether it is standby by second Dial request establishes the 4th detailed process connecting with the 4th message forwarder of the MSC of the second ownership place, the second ownership place.? On the basis of embodiment six, train-ground communication method provided in this embodiment, further includes:
S701, above-mentioned EMRM continue through the MSC of the above-mentioned second main dial request and above-mentioned first ownership place, above-mentioned first The second message transponder of ownership place re-establishes the second connection, and records current third and redial number.
In this step, EMRM continues through the second wireless communication module and calls the second main dialed number DIAL-B and Xining MSC, Xining second message transponder Router-B re-establish the second connection.
S702, above-mentioned EMRM judge that above-mentioned third redials whether number is greater than third predetermined threshold value, if so, thening follow the steps S703。
In this step, the occurrence of third predetermined threshold value is not defined.
S703, above-mentioned EMRM are by above-mentioned second for the MSC of dial request and above-mentioned second ownership place, above-mentioned 4th message Transponder establishes the 4th connection.
In this step, EMRM is by the second wireless communication module calling second for dialed number DIAL-D and Lhasa MSC, drawing 4th message forwarder Router-D of Sa establishes the 4th connection.
Train-ground communication method provided in this embodiment, when EMRM passes through the main dialing number of the second wireless communication module calling second Code sends the MSC of the second main dial request and above-mentioned first ownership place, the second message transponder of above-mentioned first ownership place is established When the second connection failure；EMRM continues through the second wireless communication module and sends the second main dial request and second message transponder The second connection is established, and records current third and redials number, when third redials number greater than the second preset threshold, EMRM passes through Second wireless communication module transmission second is established the 4th with the 4th message forwarder for dial request and is connect.In this way, disappearing second When breath transponder failure, EMRM and second message transponder establish the second connection failure, EMRM can run through the second channel radio Letter module sends second and establishes the 4th with the 4th message forwarder for dial request and connect, it is avoidable because of second message transponder therefore Hinder and communication link is made to be in disconnected state for a long time, and then can avoid influencing due to communication link is in disconnected state for a long time The safety of driving.
Fig. 9 is the structural schematic diagram of EMRM embodiment one of the present invention.EMRM provided in this embodiment is suitable for such as Fig. 1 institute The communication disaster tolerance system shown, above-mentioned communication disaster tolerance system include EMRM provided in this embodiment and connect at least with above-mentioned EMRM The MSC of two ownership place, each ownership place include at least two message forwarders and at least two gateways, and above-mentioned message turns The number for sending out device is identical as the number of above-mentioned gateway.
Fig. 9 is please referred to, EMRM provided in this embodiment includes sending module 100, judgment module 200, determining module 300；
Sending module 100, for determining first in above-mentioned EMRM and above-mentioned at least two ownership place when determining module 300 The MSC of ownership place, above-mentioned first ownership place first message transponder be successfully established connection, and above-mentioned EMRM holds in above-mentioned communication When succeeding in registration in the first gateway in calamity system, the detection request of Xiang Shangshu the first gateway transmission link；
Judgment module 200, the response for judging whether to receive above-mentioned first gateway transmission in preset duration Message；
Determining module 300, for judging that being not received by above-mentioned first gateway in preset duration sets when judgment module 200 When the response message that preparation is sent, current communications link disconnection is confirmed.
EMRM provided in this embodiment can execute the technical solution of embodiment of the method shown in Fig. 2, realization principle and skill Art effect is similar, and details are not described herein again.
Figure 10 is the structural schematic diagram of EMRM embodiment two of the present invention.On the basis of the above embodiments, in the present embodiment, EMRM further includes the first wireless communication module 400 and the second 500 modules of wireless communication, the first wireless communication module 400 corresponding the One main dial request, the corresponding second main dial request of the second wireless communication module 500；Wherein, the above-mentioned first main dial request with Above-mentioned first message transponder is corresponding；Above-mentioned second main dial request is corresponding with above-mentioned second message transponder；
First wireless communication module 400, for by the above-mentioned first main dial request and above-mentioned first ownership place MSC, The first message transponder of above-mentioned first ownership place establishes the first connection, and above-mentioned first connection is successfully established；
Second wireless communication module 500 is used for after determining module 300 determines current communications link disconnection, by upper The second message transponder of the MSC, above-mentioned first ownership place that state the second main dial request and above-mentioned first ownership place establish second Connection.
EMRM provided in this embodiment can execute the technical solution of embodiment of the method shown in Fig. 3, realization principle and skill Art effect is similar, and details are not described herein again.
Further, the first wireless communication module 400 also corresponding first is for dial request, and above-mentioned first for dial request It is corresponding with the third message forwarder of the second ownership place in above-mentioned at least two ownership place；
First wireless communication module 400 is also used to pass through the above-mentioned first main dial request in the first wireless communication module 400 When establishing the first connection failure with the MSC of above-mentioned first ownership place, the first message transponder of above-mentioned first ownership place, by upper It states first and establishes third with the third message forwarder of the MSC of above-mentioned second ownership place, the second ownership place for dial request and connect,
Determining module 300, is also used to determine whether above-mentioned third connection is successfully established；
Sending module 100 is also used to when determining module 300 determines that above-mentioned third connection is successfully established, to above-mentioned communication Any gateway in disaster tolerance system initiates registration request, so that second net of the above-mentioned EMRM in above-mentioned communication disaster tolerance system Close successful registration in equipment；
Second wireless communication module 500 is also used to lead to when determining module 300 determines that failure is established in above-mentioned third connection The second message transponder of the MSC, above-mentioned first ownership place that cross the above-mentioned second main dial request and above-mentioned first ownership place are established Second connection.
Specifically, EMRM provided in this embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 4, The realization principle and technical effect are similar, and details are not described herein again.
Further, the first wireless communication module 400 is also used to passing through above-mentioned first for dial request and above-mentioned second The MSC of ownership place, above-mentioned third message forwarder establish third connection before, continue through the above-mentioned first main dial request with it is upper The first message transponder of the MSC, above-mentioned first ownership place that state the first ownership place re-establish the first connection, and record currently First redials number；
Judgment module 200 is also used to judge that above-mentioned first redials whether number is greater than the first preset threshold；
First wireless communication module 400 is also used to judge that above-mentioned first redials number in advance greater than first in judgment module 200 If when threshold value, establishing the by above-mentioned first for MSC, the above-mentioned third message forwarder of dial request and above-mentioned second ownership place Three connections.
Specifically, EMRM provided in this embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 5, The realization principle and technical effect are similar, and details are not described herein again.
Further, the first wireless communication module 400 is also used to determine that above-mentioned third connection is established in determining module 300 When failure, above-mentioned first is continued through for the MSC of dial request and above-mentioned second ownership place, above-mentioned third message forwarder again Third connection is established, and records current second and redials number；
Judgment module 200 is also used to judge that above-mentioned second redials whether number is greater than the second preset threshold；
Second wireless communication module 500 is also used to judge that above-mentioned second redials number in advance greater than second in judgment module 200 If when threshold value, passing through the second message of the MSC of the above-mentioned second main dial request and above-mentioned first ownership place, above-mentioned first ownership place Transponder establishes the second connection.
Specifically, land mobile communication system provided in this embodiment can be used for executing the technology of embodiment of the method shown in Fig. 6 Scheme, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Further, the second wireless communication module 500 also corresponding second is 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 also used to pass through the above-mentioned second main dial request in the second wireless communication module 500 When establishing the second connection failure with the MSC of above-mentioned first ownership place, the second message transponder of above-mentioned first ownership place, by upper Second is stated to establish the 4th with the MSC of above-mentioned second ownership place, above-mentioned 4th message forwarder for dial request and connect；
Determining module 300, is also used to determine whether above-mentioned 4th connection is successfully established；
Sending module 100 is also used to when determining module 300 determines that above-mentioned 4th connection is successfully established, to above-mentioned communication Any gateway in disaster tolerance system initiates registration request, so that third net of the above-mentioned EMRM in above-mentioned communication disaster tolerance system It closes and succeeds in registration in equipment.
Specifically, EMRM provided in this embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 7, The realization principle and technical effect are similar, and details are not described herein again.
Further, the second wireless communication module 500 is also used to passing through above-mentioned second for dial request and above-mentioned second The MSC of ownership place, above-mentioned 4th message forwarder establish the 4th connection before, continue through the above-mentioned second main dial request with it is upper The second message transponder of the MSC, above-mentioned first ownership place that state the first ownership place re-establish the second connection, and record currently Third redials number；
Judgment module 200 is also used to judge that above-mentioned third redials whether number is greater than third predetermined threshold value；
Second wireless communication module 500 is also used to judge that above-mentioned third redials number in judgment module 200 pre- greater than third If when threshold value, establishing the by above-mentioned second for MSC, above-mentioned 4th message forwarder of dial request and above-mentioned second ownership place Four connections.
Specifically, EMRM provided in this embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 8, The realization principle and technical effect are similar, and details are not described herein again.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of train-ground communication method, which is characterized in that the method is suitable for communication disaster tolerance system, the communication disaster tolerance system Moving exchanging center MSC including enhanced mobile wireless module EMRM and at least two ownership place being connect with the EMRM, Each ownership place include at least two message forwarders and at least two gateways, the number of the message forwarder with it is described The number of gateway is identical；The described method includes:
When the EMRM and MSC of the first ownership place at least two ownership place, the first of first ownership place disappear Breath transponder is successfully established connection, and the EMRM succeeds in registration in the first gateway in the communication disaster tolerance system When, the EMRM is detected to the first gateway transmission link and is requested；
The EMRM judges the response message that first gateway is sent whether is received in preset duration；
If it is not, then the EMRM determines current communications link disconnection.
2. the method according to claim 1, wherein the EMRM includes the first wireless communication module and the second nothing Line communication module, the corresponding first main dial request of first wireless communication module, second wireless communication module corresponding the Two main dial requests, the MSC of the first ownership place in the EMRM and at least two ownership place, first ownership place First message transponder is successfully established connection, specifically includes:
The EMRM by the MSC of the described first main dial request and first ownership place, first ownership place first Message forwarder establishes the first connection, and first connection is successfully established；The first main dial request disappears with described first It is corresponding to cease transponder；
After then the EMRM determines current communications link disconnection, the method also includes:
The EMRM by the MSC of the described second main dial request and first ownership place, first ownership place second Message forwarder establishes the second connection；Wherein, the described second main dial request is corresponding with the second message transponder.
3. according to the method described in claim 2, it is characterized in that, the also corresponding first standby dialing of first wireless communication module Request, and described first for the second ownership place in dial request and at least two ownership place third message forwarder pair It answers；
If the EMRM by the MSC of the described first main dial request and first ownership place, first ownership place the When one message forwarder establishes the first connection failure, the method also includes:
The EMRM is by described first for dial request and the MSC of second ownership place, the third message of the second ownership place Transponder establishes third connection, and determines whether the third connection is successfully established；
If so, any gateway of the EMRM into the communication disaster tolerance system initiates registration request, so that described EMRM successful registration in the second gateway in the communication disaster tolerance system；
If it is not, the EMRM passes through the MSC of the described second main dial request and first ownership place, first ownership place Second message transponder establishes the second connection.
4. according to the method described in claim 3, it is characterized in that, the EMRM by described first for dial request with it is described The MSC of second ownership place, the third message forwarder are established before third connection, the method also includes:
The EMRM continues through the MSC of the described first main dial request and first ownership place, first ownership place First message transponder re-establishes the first connection, and records current first and redial number；
The EMRM judges that described first redials whether number is greater than the first preset threshold；
If so, the EMRM is forwarded by described first for the MSC of dial request and second ownership place, the third message Device establishes third connection.
5. according to the method described in claim 4, it is characterized in that, if the method is also when failure is established in third connection Include:
The EMRM continues through described first and forwards for the MSC of dial request and second ownership place, the third message Device re-establishes third connection, and records current second and redial number；
The EMRM judges that described second redials whether number is greater than the second preset threshold；
If so, the EMRM passes through MSC, first ownership place of the described second main dial request and first ownership place Second message transponder establish the second connection.
6. according to the method described in claim 2, it is characterized in that, the also corresponding second standby dialing of second wireless communication module Request, described second for the second ownership place in dial request and at least two ownership place the 4th message forwarder pair It answers；
If the EMRM by the MSC of the described second main dial request and first ownership place, first ownership place the When two message forwarders establish the second connection failure, the method also includes:
The EMRM is built by described second for MSC, the 4th message forwarder of dial request and second ownership place Vertical 4th connection, and determine whether the 4th connection is successfully established；
If so, any gateway of the EMRM into the communication disaster tolerance system initiates registration request, so that described EMRM succeeds in registration in the third gateway in the communication disaster tolerance system.
7. according to the method described in claim 6, it is characterized in that, the EMRM by described second for dial request with it is described The MSC of second ownership place, the 4th message forwarder are established before the 4th connection, the method also includes:
The EMRM continues through the MSC of the described second main dial request and first ownership place, first ownership place Second message transponder re-establishes the second connection, and records current third and redial number；
The EMRM judges that the third redials whether number is greater than third predetermined threshold value；
If so, the EMRM turns by described second for the MSC of dial request and second ownership place, the 4th message Hair device establishes the 4th connection.
8. a kind of enhanced mobile wireless module EMRM, which is characterized in that be suitable for communication disaster tolerance system, the communication disaster tolerance system System includes the MSC of the EMRM and at least two ownership place connecting with the EMRM, and each ownership place disappears including at least two It ceases transponder and at least two gateways, the number of the message forwarder is identical as the number of the gateway；It is described EMRM includes sending module, judgment module, determining module；
The sending module, for determining that the EMRM returns with first at least two ownership place when the determining module The MSC in possession, first ownership place first message transponder be successfully established connection, and the EMRM is in the communication disaster tolerance When succeeding in registration in the first gateway in system, the detection request of Xiang Suoshu the first gateway transmission link；
The judgment module, for judging that whether receiving the response that first gateway is sent in preset duration disappears Breath；
The determining module, for judging to be not received by first gateway in preset duration when the judgment module When the response message of transmission, current communications link disconnection is confirmed.
9. EMRM according to claim 8, which is characterized in that the EMRM further includes the first wireless communication module and second Wireless communication module, the corresponding first main dial request of first wireless communication module, second wireless communication module are corresponding Second main dial request；Wherein, the described first main dial request is corresponding with the first message transponder；The second main dialing It requests corresponding with second message transponder；
First wireless communication module, for the MSC, described by the described first main dial request and first ownership place The first message transponder of first ownership place establishes the first connection, and first connection is successfully established；
Second wireless communication module, for after the determining module determines current communications link disconnection, by described Second main dial request establishes the second company with the MSC of first ownership place, the second message transponder of first ownership place It connects.
10. EMRM according to claim 9, which is characterized in that first wireless communication module also corresponding first is standby to be dialled Number request, and described first for the second ownership place in dial request and at least two ownership place third message forwarder It is corresponding；
First wireless communication module, be also used to first wireless communication module by the described first main dial request with First message transponder when establishing the first connection failure of the MSC of first ownership place, first ownership place, by described First, which establishes third with the third message forwarder of the MSC of second ownership place, the second ownership place for dial request, connect,
The determining module, is also used to determine whether the third connection is successfully established；
The sending module is also used to hold when the determining module determines that the third connection is successfully established to the communication Any gateway in calamity system initiates registration request, so that second gateway of the EMRM in the communication disaster tolerance system Successful registration in equipment；
Second wireless communication module is also used to pass through when the determining module determines that failure is established in the third connection The MSC of the second main dial request and first ownership place, the second message transponder of first ownership place establish the Two connections.
CN201610685053.0A 2016-08-18 2016-08-18 Train-ground communication method and enhanced mobile wireless module EMRM Active CN106302018B (en)

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