CN102355496A - Train-ground data communication method - Google Patents
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Abstract
The invention discloses a train-ground data communication method, relating to the technical field of computer network communication. The method comprises the following steps that: S1, network connection is sent by a train-mounted client end to a ground system, wherein the network connection comprises the identity of the train-mounted client end; and S2, the received network connection is registered into a network connection management queue through the ground system, and a time stamp is added; data to be transmitted back corresponding to the network connection of higher priority is obtained from a backward transmission queue according to the priority of the network connection in the network connection management queue and the state of a communication channel between the grounding system and the corresponding train-mounted client end, the data is transmitted back to the train-mounted client end corresponding to the network connection of higher priority, and the time stamp of the data to be transmitted back is added into the backward transmission queue. By adopting the method, a high-load and high-concurrency network system can be realized, and the purposes of low complexity, high data security, good timeliness and high accuracy can be achieved. Moreover, the method is stable and reliable.
Description
Technical field
The present invention relates to the computer network communication technology field, relate in particular to data communications method between a kind of train ground.
Background technology
Current China Express Railway construction has got into fast-developing period, and it is many that motor train unit is started quantity, big with ground data center amount of communications, and network system is often in the face of the big concurrent problem of high capacity.Motor train unit is under high-speed moving state, and network service faces serious doppler shift effect, can have a strong impact on the stability and the reliability of data communication, causes a large amount of packet losses, network to connect problems such as abort, message transmission rate fluctuation be violent.Train needs ground system can supervise and control the various faults of the speed of train, the diagnosis of grasp vehicle netbios in real time, continuously, monitor each critical piece operational factor, guarantee operational efficiency and travel safety when high-speed cruising.At present; The TCP/IP technology is as the basic technology means of network service; In data communication, adopt in a large number; But the TCP/IP technology can't guarantee stability of data transmission and availability between car ground; Be embodied in: train-ground communication interrupts causing the two-way communication of car ground to accomplish smoothly at any time; On the one hand can't be initiatively to train transmission information; Can't accomplish twice of TCP smoothly shakes hands; On the other hand; The communication meeting of interrupting causes a large amount of invalid connections in service end; Increased the difficulty of system service, therefore, needed through adopting fault-toleranr technique; The high capacity technology; Data processing techniques etc. guarantee that reliability of data transmission improves data-handling efficiency.
Load balancing is the important technology of the big concurrent problem of solution high capacity used always, and mainly comprises following two kinds:
1, hardware four layer-switching technologies
Hardware four layer-switching technologies are a kind of technology of traffic data being separated based on hardware.The header information of both layer 3 and layer 4 information bag is used in the 4th layer of exchange, according to identification services stream between application area, the traffic flow assignment of whole segment is handled to the suitable applications server.The 4th layer of function of exchange similarly is empty IP, points to physical server.The agreement that the business of its transmission is obeyed is varied, and HTTP, FTP, NFS, Telnet or other agreements are arranged.These business need complicated carrying capacity balanced algorithm on the physical server basis.In the IP world, type of service is decided by terminal TCP or udp port address, is then determined jointly by source end and IP address of terminal, TCP and udp port between the application area in the 4th layer of exchange.This technical performance is higher, but fund input and later maintenance cost are higher, and has the inflexible drawback of implementation in actual use.
2, software four layer-switching technologies
Be based on software four layer-switching technologies that osi model is realized with hardware four layer switch are corresponding.This technology is meant with acting server accepts the connection request on the internet; Then request is transmitted to the server on the internal network; And will return the client that request connects from the result that server obtains, this moment, acting server externally just showed as a server.Software four layer-switching technologies are will handling with the multiple servers that the mode of reverse proxy dynamically is transmitted on the internal network from the connection request on the internet, thereby reach the needs of bearing high capacity.Software four layer-switching technologies are consistent with hardware four layer switch principles, and required cost is low, and software realization mode is flexible, but performance is poor slightly.
Summary of the invention
(1) technical problem that will solve
The technical problem that the present invention will solve is: provide a kind of and can realize the high concurrent network system of high capacity, implementation complexity is low, Information Security, promptness, accuracy are high, and stable, data communications method between train ground reliably.
(2) technical scheme
For addressing the above problem, the invention provides data communications method between a kind of train ground, the method comprising the steps of:
S1. vehicle-mounted client terrestrial system is sent network and is connected, and comprises the identify label of said vehicle-mounted client during said network connects;
S2. ground system is registered to the network connection management formation with the network connection that receives, and adds timestamp; Simultaneously; The state of the interface channel between priority that connects according to network in the said network connection management formation and ground system and the corresponding vehicle-mounted client; From the passback formation, obtain the high network of priority and connect corresponding data to be returned; Send it to the high network of said priority and connect corresponding vehicle-mounted client, and in said passback formation, add the timestamp of passback data.
Preferably; In step S2; If connecting, said network comprises network connecting request; The type of service of the packet that then said ground system connects according to said network earlier; Set up the interface channel that connects corresponding vehicle-mounted client with said network; Again the network connection that receives is registered to the network connection management formation, and adds timestamp.
Preferably, among the step S2, register said network connection and comprise step:
S2.11 resolves said network data in connection bag, according to the type of service of data that said packet comprises, will return to the data of the vehicle-mounted client of correspondence and add said passback formation according to the identify label of said vehicle-mounted client;
S2.12 is according to said identify label, obtain lastly in the said passback formation to return the timestamp of the data of business of the same race to said vehicle-mounted client, if with time difference of current time greater than first setting-up time, then heartbeat data packets is added the passback formation.
Preferably, said ground system periodically detects the validity with the interface channel of vehicle-mounted client.
Preferably; Said ground system is according to the identify label of vehicle-mounted client; Obtaining all-network corresponding with said vehicle-mounted client in the said network connection management formation connects; If the time difference of the timestamp that the current time is connected with network is greater than second setting-up time; Then remove said network and connect, close corresponding interface channel.
Preferably, in step S2, send said passback data and further comprise step:
S2.21 then selects the network connection of a time priority to continue to carry out this step if interface channel is closed, otherwise, execution in step S2.22;
Identify label during S2.22 connects according to said network is obtained said network and is connected corresponding passback data from said passback formation;
S2.23 compresses said passback data, and according to the protocol groups bag of making an appointment, obtains returning packet;
S2.24 is sent to said network with said passback packet and connects corresponding vehicle-mounted client via connecting corresponding interface channel with said network.
Preferably, said first setting-up time is one minute.
Preferably, said second setting-up time is ten minutes.
Preferably, said identify label is the car group number of motor train unit.
(3) beneficial effect
Method of the present invention realizes the high concurrent network system of high capacity based on the asynchronous communication exchanged form; Adopt the strategy of passive process information, obstruction and the delay of effectively having avoided train when communication is not smooth, ground system to be caused have effectively improved data transmission efficiency and ground system laod network concatenation ability; Come supervising the network to connect and information to be sent based on HASH table technology and the queue technology that has a timestamp; Effectively improved the response speed of transfer of data; Reduced the complexity of system development, guaranteed that ground system gets fail safe, reliability, and can effectively improve system availability.
Description of drawings
Fig. 1 is according to data communications method flow chart between the train ground of one embodiment of the present invention.
Embodiment
Data communications method between the train ground that the present invention proposes describes in detail as follows in conjunction with accompanying drawing and embodiment.
This execution mode is an example with the data communication between motor train unit and the Ministry of Railways's central server.The two adopts method of the present invention to be transmission channel through Ministry of Railways's public safety platform, based on the asynchronous communication exchanged form, realizes the high concurrent network of high capacity.As shown in Figure 1, comprise step according to data communications method between the train ground of one embodiment of the present invention:
S1. vehicle-mounted client terrestrial system is sent network and is connected, and comprises the identify label of vehicle-mounted client during this network connects, and is the car group number of motor train unit in this execution mode;
S2. the main thread of ground system receives the network connection in real time, the network that receives is connected be registered to the network connection management formation, and adds timestamp, receives the time that this network connects with the record ground system; When main thread continues to receive the network connection; (this priority defined by the time priority that is connected according to network in the network connection management formation by another thread; For a plurality of connections of same car group; Time is high more from nearlyer priority of current time) and ground system and corresponding vehicle-mounted client between the state of interface channel; From the passback formation, obtain the high network of priority and connect corresponding data to be returned; Send it to the high network of this priority and connect corresponding vehicle-mounted client, and in the passback formation, add the timestamp of passback data.
Need to prove; If this motor train unit first with the communicating by letter of ground system; Then this network connects and comprises the connect network connecting request of passage of request; Therefore; In step S2, ground system elder generation sets up the interface channel that connects corresponding vehicle-mounted client with network according to the type of service of the packet of this network connection; Again the network connection that receives is registered to the network connection management formation, and adds timestamp.
Between vehicle-mounted client and the ground system, a corresponding network connects promptly has an interface channel.
In the method for this execution mode, the registered network connection procedure of step S2 specifically comprises step:
S2.11 resolves network data in connection bag, and according to the type of service of data that packet comprises, the data that will return to the vehicle-mounted client of correspondence add the passback formation according to the car group number;
S2.12 is according to the car group number; Obtain the last timestamp that returns the data of business of the same race to this vehicle-mounted client in the passback formation; If with time difference of current time greater than one minute, then heartbeat data packets is added the passback formation, wait for the passback data together being sent to this vehicle-mounted client.
Meanwhile, ground system is the validity of the interface channel of poll and vehicle-mounted client periodically all the time, and the network that exceeds the time limit with removing connects, the interface channel that positive closing is corresponding.Detailed process is: according to the car group number; Obtaining all-network corresponding with vehicle-mounted client in the network connection management formation connects; Connect if the time difference of the timestamp that the current time is connected with network, is then removed this network greater than ten minutes, close corresponding interface channel.
In step S2, send said passback data and further comprise step:
S2.21 then selects the network connection of a time priority to continue to carry out this step if interface channel is closed, otherwise, execution in step S2.22;
Car group number during S2.22 connects according to network is obtained this network and is connected corresponding passback data from the passback formation;
S2.23 will return data and compress, and according to the protocol groups bag of making an appointment, obtain returning packet;
S2.24 is sent to corresponding vehicle-mounted client via connecting corresponding interface channel with this network with the passback packet.
In the method for this execution mode, ground system adopts asynchronous system, will be connected the format management with Priority Queues with a large amount of networks that motor train unit signal post needs, and network is connected and the data processing cutting, thereby effectively reduce the management difficulty that network connects.Simultaneously, each network is connected the establishing time stamp record last call duration time, these networks of automatic regular polling connect, and the connection of will exceeding the time limit is removed, and the corresponding interface channel of positive closing, thereby effectively raise the load capacity of ground system service end.In addition; Ground system adopts passive mode to communicate by letter with motor train unit; Be that ground system sends to needs the stored in form (promptly return the data structure of formation) of the information of train with the HASH chained list; With the car group number is index; When ground system receives that the network of any train transmission connects; Priority according to network connects is given corresponding motor train unit with returning data to be sent from the HASH chained list, thereby has avoided initiatively initiating to connect to train, has improved the success rate that data are sent greatly.Because software development cycle is effectively shortened in the reduction of software complexity; The software time degree of coupling lowers, and compares the train-ground communication scheme of synchronous communication, has significantly improved the load capacity of data transmission stability and ground system.
Above execution mode only is used to illustrate the present invention, and is not limitation of the present invention.Although the present invention is described in detail with reference to embodiment; Those of ordinary skill in the art is to be understood that; Technical scheme of the present invention is carried out various combinations, revises or is equal to replacement; The spirit and scope that do not break away from technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. data communications method between a train ground is characterized in that the method comprising the steps of:
S1. vehicle-mounted client terrestrial system is sent network and is connected, and comprises the identify label of said vehicle-mounted client during said network connects;
S2. ground system is registered to the network connection management formation with the network connection that receives, and adds timestamp; Simultaneously; The state of the interface channel between priority that connects according to network in the said network connection management formation and ground system and the corresponding vehicle-mounted client; From the passback formation, obtain the high network of priority and connect corresponding data to be returned; Send it to the high network of said priority and connect corresponding vehicle-mounted client, and in said passback formation, add the timestamp of passback data.
2. data communications method between train as claimed in claim 1 ground; It is characterized in that; In step S2; If connecting, said network comprises network connecting request; The type of service of the packet that then said ground system connects according to said network earlier; Set up the interface channel that connects corresponding vehicle-mounted client with said network, again the network connection that receives is registered to the network connection management formation, and adds timestamp.
3. data communications method between train as claimed in claim 1 ground is characterized in that, among the step S2, registers said network connection and comprises step:
S2.11 resolves said network data in connection bag, according to the type of service of data that said packet comprises, will return to the data of the vehicle-mounted client of correspondence and add said passback formation according to the identify label of said vehicle-mounted client;
S2.12 is according to said identify label, obtain lastly in the said passback formation to return the timestamp of the data of business of the same race to said vehicle-mounted client, if with time difference of current time greater than first setting-up time, then heartbeat data packets is added the passback formation.
4. data communications method between train as claimed in claim 3 ground is characterized in that, said ground system periodically detects the validity with the interface channel of vehicle-mounted client.
5. data communications method between train as claimed in claim 3 ground; It is characterized in that; Said ground system is according to the identify label of vehicle-mounted client; Obtaining all-network corresponding with said vehicle-mounted client in the said network connection management formation connects; If the time difference of the timestamp that the current time is connected with network is greater than second setting-up time; Then remove said network and connect, and close corresponding interface channel.
6. data communications method between train as claimed in claim 5 ground is characterized in that, in step S2, sends said passback data and further comprises step:
S2.21 then selects the network connection of a time priority to continue to carry out this step if corresponding interface channel is closed, otherwise, execution in step S2.22;
Identify label during S2.22 connects according to said network is obtained said network and is connected corresponding passback data from said passback formation;
S2.23 compresses said passback data, and according to the protocol groups bag of making an appointment, obtains returning packet;
S2.24 is sent to said network with said passback packet and connects corresponding vehicle-mounted client via connecting corresponding interface channel with said network.
7. data communications method between train as claimed in claim 6 ground is characterized in that, said first setting-up time is one minute.
8. data communications method between train as claimed in claim 6 ground is characterized in that, said second setting-up time is ten minutes.
9. like data communications method between each described train ground of claim 1-8, it is characterized in that said identify label is the car group number of motor train unit.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428287A (en) * | 2013-08-09 | 2013-12-04 | 华为技术有限公司 | Method and device for establishing connection |
| CN105933464A (en) * | 2016-04-13 | 2016-09-07 | 北京思特奇信息技术股份有限公司 | Network communication method and system based on network connection pooling |
| CN107390549A (en) * | 2017-09-04 | 2017-11-24 | 中车青岛四方车辆研究所有限公司 | CRH5 types car control logic analogue system and method |
| CN107864457A (en) * | 2017-10-18 | 2018-03-30 | 上海复旦通讯股份有限公司 | A kind of method that more call managers are carried out in railway communication network |
| CN109068293A (en) * | 2018-07-05 | 2018-12-21 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Data automated communications method between a kind of wlan network EMU car ground |
| CN109922459A (en) * | 2019-01-18 | 2019-06-21 | 卡斯柯信号有限公司 | A kind of control method synchronizing cycle that can improve more vehicle communication efficiencies |
| CN109936601A (en) * | 2017-12-18 | 2019-06-25 | 厦门本能管家科技有限公司 | A kind of block chain duplex communication network based on WebSocket connection |
| CN110532088A (en) * | 2019-07-15 | 2019-12-03 | 金蝶汽车网络科技有限公司 | Connection processing method, device, computer equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247404C (en) * | 2003-10-13 | 2006-03-29 | 北京交通大学 | Wireless locomotive signal system preset polling optimized control method |
| CN101574975A (en) * | 2009-06-03 | 2009-11-11 | 北京六捷科技有限公司 | Vehicle monitoring system based on CTCS-3 level train control system and terminal thereof |
| CN102104547A (en) * | 2011-02-24 | 2011-06-22 | 上海华为技术有限公司 | Method, device and system for transmitting data messages in train control system |
-
2011
- 2011-09-27 CN CN201110298222.2A patent/CN102355496B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247404C (en) * | 2003-10-13 | 2006-03-29 | 北京交通大学 | Wireless locomotive signal system preset polling optimized control method |
| CN101574975A (en) * | 2009-06-03 | 2009-11-11 | 北京六捷科技有限公司 | Vehicle monitoring system based on CTCS-3 level train control system and terminal thereof |
| CN102104547A (en) * | 2011-02-24 | 2011-06-22 | 上海华为技术有限公司 | Method, device and system for transmitting data messages in train control system |
Non-Patent Citations (2)
| Title |
|---|
| 林海香等: "无线CBTC系统车地通信方案研究", 《兰州交通大学学报》 * |
| 穆潇，王化深，冯建周: "基于无线通信的机车信号系统", 《广东通信技术》 * |
Cited By (14)
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|---|---|---|---|---|
| US9462053B2 (en) | 2013-08-09 | 2016-10-04 | Huawei Technologies Co., Ltd. | Method and apparatus for connection establishment |
| CN103428287B (en) * | 2013-08-09 | 2017-04-12 | 华为技术有限公司 | Method and device for establishing connection |
| CN103428287A (en) * | 2013-08-09 | 2013-12-04 | 华为技术有限公司 | Method and device for establishing connection |
| CN105933464B (en) * | 2016-04-13 | 2019-05-31 | 北京思特奇信息技术股份有限公司 | A kind of network communication method and system based on network connection pond |
| CN105933464A (en) * | 2016-04-13 | 2016-09-07 | 北京思特奇信息技术股份有限公司 | Network communication method and system based on network connection pooling |
| CN107390549A (en) * | 2017-09-04 | 2017-11-24 | 中车青岛四方车辆研究所有限公司 | CRH5 types car control logic analogue system and method |
| CN107864457A (en) * | 2017-10-18 | 2018-03-30 | 上海复旦通讯股份有限公司 | A kind of method that more call managers are carried out in railway communication network |
| CN109936601A (en) * | 2017-12-18 | 2019-06-25 | 厦门本能管家科技有限公司 | A kind of block chain duplex communication network based on WebSocket connection |
| CN109936601B (en) * | 2017-12-18 | 2022-10-25 | 本无链科技(深圳)有限公司 | Block chain duplex communication method based on WebSocket connection |
| CN109068293A (en) * | 2018-07-05 | 2018-12-21 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Data automated communications method between a kind of wlan network EMU car ground |
| CN109068293B (en) * | 2018-07-05 | 2021-03-02 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Automatic communication method for data between train and ground of WLAN (Wireless local area network) network motor train unit |
| CN109922459A (en) * | 2019-01-18 | 2019-06-21 | 卡斯柯信号有限公司 | A kind of control method synchronizing cycle that can improve more vehicle communication efficiencies |
| CN110532088A (en) * | 2019-07-15 | 2019-12-03 | 金蝶汽车网络科技有限公司 | Connection processing method, device, computer equipment and storage medium |
| CN110532088B (en) * | 2019-07-15 | 2022-09-23 | 金蝶汽车网络科技有限公司 | Connection processing method and device, computer equipment and storage medium |
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