CN104875773A - Train control system based on satellite communication and public cellular communication - Google Patents
Train control system based on satellite communication and public cellular communication Download PDFInfo
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Abstract
The invention relates to the technical field of train safety operation control, and discloses a train control system based on satellite communication and public cellular communication. The train control system comprises train-mounted equipment and ground equipment. The train-mounted equipment comprises a wireless communication unit. The ground equipment comprises a communication interface server. The wireless communication unit is used for conducting information transmission between satellite communication and public cellular communication networks and the communication interface server. The communication interface server is used for receiving position reports transmitted by the wireless communication unit and transmitting traveling permits and temporary speed limitation information generated by the ground equipment to the wireless communication unit. By the adoption of the train control system based on satellite communication and public cellular communication, stable, reliable and continuous mutual communication between the train-mounted equipment and the ground equipment is achieved through the combination of satellite communication and public cellular communication, the construction cost of train and ground wireless communication networks is greatly reduced, and automatic control over train operation is achieved.
Description
Technical field
The invention belongs to safe train operation control technology field, particularly a kind of safe train operation control system utilizing satellite communication to communicate with public cellular to carry out car ground information transmission.
Background technology
Train control system adopts the correlation technique such as location, communication to control current of traffic, operation interval and running velocity, makes train can safe and highly efficient operation.The inaccessible control convenience of train control system and station interlocking equipment mainly realize access way control and tracking interval controls, and generate driving license, driving license is sent to train again by car-ground radio transmission path, after mobile unit receives driving license, generate train speed controlling curve, supervision and control train safe Effec-tive Function.
The CTCS-3 grade train controlling system be applied at present on speed per hour 300km/h ~ 350km/h railway line for passenger traffic mainly adopts track circuit to carry out train occupation detection, obtain train position, carry out continuous, two-way car ground information transmission by GSM-R private radio communication network, simultaneously by responser to mobile unit transmitting line information.Such mode of operation needs radio communication completely to cover.But, at underdeveloped and meagrely-populated west area and factories and miness special line railway, the building cost too expensive of cordless communication network.
The information spinner that train control system car ground transmits will comprise the position report that train sends earthward, and the information such as driving license, temporary speed limitation that ground sends to train, the data volume of these information is all smaller.Therefore the performance requriements that transmits with can meeting train control system car of public cellular communication or satellite communication.Domestic at present have three big bus cellular operator, and most area all possesses good covering and good communication quality guarantee along the railway.In the region of minority without public cellular communication overlay, satellite communication can be adopted as a supplement.To communicate with public cellular in conjunction with satellite communication and can be used for train control system car ground information transmission.
Summary of the invention
The object of the invention is to provide a kind of Train control method communicated with public cellular based on satellite communication, adopt the information transmission between public cellular communication and satellite communication guarantee car ground, overcome the defect that in prior art, wireless information transfer network cost is high, and then reach the object controlling train safe and travel.
The invention provides a kind of train control system communicated with public cellular based on satellite communication, comprise mobile unit and wayside equipment; Described mobile unit comprises wireless communication unit; Described wayside equipment comprises communication interface server; Described wireless communication unit, for carrying out information transmission by satellite communication with between public cellular communication network and described communication interface server; Described communication interface server, for receiving the position report that wireless communication unit is sent, and the driving license generated by wayside equipment and temporary speed limitation information send to wireless communication unit.
Further, described mobile unit also comprises on-vehicle safety computing machine, positioning unit, integrity of train monitor unit, train interface unit, transponder unit, track circuit reading unit, judicial logger, human-computer interaction device; Described on-vehicle safety computing machine, for receiving the original locating data of train and generating train position report, sends to described wayside equipment by wireless communication unit; Also receive the information such as driving license, line parameter circuit value, temporary speed limitation that described wayside equipment sends to go forward side by side row relax simultaneously, generate dynamic speed curve according to target range continuous velocity master mode, monitoring train operation; Described positioning unit, for obtaining the information such as position, speed, mileage of current train, and sends to described on-vehicle safety computing machine; Described integrity of train monitor unit, for monitoring integraty in train operation way; Described train interface unit, for train braking interface, control train running speed; Described transponder unit, for reading the responser information on track, and sends to on-vehicle safety computing machine; Described track circuit reading unit, for reading the track circuit information on track, and sends to on-vehicle safety computing machine; Described judicial logger, for recording the every terms of information in train operation, and generates train driving daily record; Described human-computer interaction device, for carrying out man-machine interaction with trainman, for trainman provides the reference information of driving procedure; Described on-vehicle safety computing machine is connected with positioning unit, integrity of train monitor unit, train interface unit, transponder unit, track circuit reading unit, judicial logger, human-computer interaction device, wireless communication unit respectively.
Further, described positioning unit adopts global position system, comprises GPS, the Big Dipper, Glonass, Galileo.
Further, described wayside equipment also comprises radio block center, station interlocking, difference base station; Described radio block center, for obtaining the information such as interlock access, temporary speed limitation, and in conjunction with the train position report generation driving license that described mobile unit sends, and gives described mobile unit by information transmission such as driving license, line parameter circuit value, temporary speed limitations; Described station interlocking, for controlling the route in station; Described difference base station, for providing differential reference information for described mobile unit; Described radio block center, difference base station, station interlocking mutually between adopt wire transmission network to be connected to communication interface server; Described communication interface server is connected with radio block center, and described radio block center is connected with station interlocking, difference base station respectively.
Further, described radio block center comprises temporary speed limitation receiver module, station interlocking information receiving module, train position report receiver module and driving license generation module; Wherein, described temporary speed limitation receiver module, for receiving the temporary speed limitation information that ground maneuvers center sends; Described station interlocking information receiving module, for receiving the route information that station interlocking sends; Described train position report receiver module, for receiving the train position report that described mobile unit sends; Described driving license generation module, for the information received according to described temporary speed limitation receiver module, station interlocking information receiving module, train position report receiver module, generate driving License Info, and send to described mobile unit by communication interface server.
Further, described wireless communication unit comprises satellite communication module and some public cellular communication modules and communication management module; Described satellite communication module, for satellite communication; Described public cellular communication module, for public cellular communication; Described communication management module is connected with satellite communication module and some public cellular communication modules respectively, is used to specify a certain or good communication module of certain several signal strength and sets up communication port.
Further, described wireless communication unit also comprises radio communication private network module, for wireless private network communication; Described communication management module is connected with radio communication private network module, satellite communication module and some public cellular communication modules respectively, is used to specify a certain or good communication module of certain several signal strength and sets up communication port.
Further, described communication interface server also comprises communication controller, for the position report sent according to wireless communication unit, parse the communication port of train number number and current use, and specify this communication port that driving license is sent to wireless communication unit.
Therefore, the mode that the present invention utilizes satellite communication and public cellular communication to combine achieves the reliable and stable continual mutual communication between mobile unit and wayside equipment, greatly reduce vehicle-ground wireless communication network construction cost, realize Automatic Control Systems for train operation.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part, does not form inappropriate limitation of the present invention, in the accompanying drawings:
Fig. 1 is the train control system overall structure schematic diagram communicated with public cellular based on satellite communication provided by the invention;
The train control system structural representation communicated with public cellular based on satellite communication that Fig. 2 provides for the embodiment of the present invention 5;
The wireless communication unit structural representation that Fig. 3 provides for the embodiment of the present invention 6.
Detailed description of the invention
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1:
Fig. 1 is the train control system overall structure schematic diagram that the present embodiment communicates with public cellular based on satellite communication.
As shown in Figure 1, the present invention is based on the train control system that satellite communication communicates with public cellular, comprise mobile unit 1 and wayside equipment 2; Described mobile unit 1, comprises wireless communication unit 3, for carrying out information transmission by satellite communication with between public cellular communication network and wayside equipment 2; Described wayside equipment 2, comprises communication interface server 4, and for receiving the position report that wireless communication unit 3 is sent, and the driving license generated by wayside equipment 2 and temporary speed limitation information send to mobile unit 1; The wireless communication unit 3 of described mobile unit 1 coordinates the transmission over radio achieved between mobile unit 1 and wayside equipment 2 together with the communication interface server 4 of wayside equipment 2.
Embodiment 2:
As shown in Figure 1, as a kind of preferred version of embodiment 1, mobile unit 1 also comprises on-vehicle safety computing machine 11, positioning unit 12, integrity of train monitor unit 13, train interface unit 14, transponder unit 15, track circuit reading unit 16, judicial logger 17, human-computer interaction device 18.Wherein,
On-vehicle safety computing machine 11, generates train position report and sends to described wayside equipment 2 by wireless communication unit 3; Also receive the information such as driving license, line parameter circuit value, temporary speed limitation that described wayside equipment 2 sends to go forward side by side row relax simultaneously, generate dynamic speed curve according to target range continuous velocity master mode, monitoring train operation;
Described positioning unit 12, for obtaining the information such as position, speed, mileage of current train, and sends to described on-vehicle safety computing machine;
Described integrity of train monitor unit 13, for monitoring integraty in train operation way;
Described train interface unit 14, for train braking interface, control train running speed;
Described transponder unit 15, for reading the responser information on track, and sends to on-vehicle safety computing machine 11;
Described track circuit reading unit 16, for reading the track circuit information on track, and sends to on-vehicle safety computing machine 11;
Described judicial logger 17, for recording the every terms of information in train operation, and generates train driving daily record; Particularly, judicial logger JRU is used in record train operation, the control information that the raw information that mobile unit 1 gathers, mobile unit 1 export and correlation log;
Described human-computer interaction device 18, for carrying out man-machine interaction with trainman, for trainman provides the reference information of driving procedure; Particularly, the position that human-computer interaction device DMI is arranged on trainman's operation and observes, for trainman provides the reference information of driving procedure, the content of display mainly comprises information warning, velocity information, status information of equipment, range information and alarm message;
Described on-vehicle safety computing machine 11 is connected with positioning unit 12, integrity of train monitor unit 13, train interface unit 14, transponder unit 15, track circuit reading unit 16, judicial logger 17, human-computer interaction device 18, wireless communication unit 3 respectively.
Embodiment 3:
As a kind of preferred version of embodiment 2, positioning unit 12 adopts global position system, comprises one or more in the system such as GPS, the Big Dipper, Glonass, Galileo, and in conjunction with vehicle-wheel speed sensor or inertial sensor, and orbital electron map, obtain train position, speed.
Embodiment 4:
As shown in Figure 1, as a kind of preferred version of above-described embodiment, wayside equipment 2 also comprises radio block center 21, station interlocking 23, difference base station 22;
Described radio block center 21, for obtaining the information such as interlock access, temporary speed limitation, and in conjunction with the train position report generation driving license that described mobile unit 1 sends, and give described mobile unit 1 by information transmission such as driving license, line parameter circuit value, temporary speed limitations;
Described station interlocking 23, for controlling the route in station;
Described difference base station 22, for providing differential reference information for mobile unit 1.Now, the positioning unit 12 of mobile unit also comprises GNSS receiver, and difference base station 22 is used for sending Differential corrections to the GNSS receiver of mobile unit 1, solves more accurate coordinate with round-off error.
Described radio block center 21, difference base station 22, station interlocking 22 mutually between adopt wire transmission network to be connected to communication interface server 4;
Described communication interface server 4, for receiving the position report that mobile unit 1 is sent, and the driving license generated radio block center 21 and temporary speed limitation are transmitted to mobile unit 1.
Embodiment 5:
As shown in Figure 2, as a kind of preferred version of embodiment 4, described radio block center 21 comprises temporary speed limitation receiver module 211, station interlocking information receiving module 212, train position report receiver module 213 and driving license generation module 214; Wherein,
Described temporary speed limitation receiver module 211, for receiving the temporary speed limitation information that ground maneuvers center sends;
Described station interlocking information receiving module 212, for receiving the route information that station interlocking 22 sends;
Described train position report receiver module 213, for receiving the train position report that described mobile unit 1 is sent by wireless communication unit 3;
Described driving license generation module 214, for the information received according to described temporary speed limitation receiver module 211, station interlocking information receiving module 212, train position report receiver module 213, generate driving License Info, and send to mobile unit 1 by communication interface server 4.
Particularly, the information such as train status, temporary speed limitation order, interlock access state that radio block center 21 is provided by wireless communication unit 3 and ground other system (control center, station interlocking) according to mobile unit 1, produce the driving license for controlled train and the control information such as line description, temporary speed limitation, be transferred to mobile unit 1 by wireless communication unit 3; Meanwhile, radio block center 21 also receives the message of mobile unit 1 by wireless communication unit 3, responds the solicited message that mobile unit 1 sends, and reception train data, position report, confirmation are as the foundation of logical process.
Embodiment 6:
Fig. 3 is the wireless communication unit structural representation that the present embodiment communicates with public cellular based on satellite communication.
As shown in Figure 3, as a kind of preferred version of above-described embodiment, wireless communication unit 3 comprises satellite communication module 31 and some public cellular communication modules 32 and communication management module 33;
Satellite communication module 31, for satellite communication;
Public cellular communication module 32, for public cellular communication;
Communication management module 33 is connected with satellite communication module 31 and some public cellular communication modules 32 respectively, is used to specify a certain or good communication module of certain several signal strength and sets up communication port.
It should be noted that, communication management module 33 can need to carry out the switching between each communication module according to system, be specially: the area preference covered there being public cellular network selects the highest public cellular communication module of signal strength to carry out information transmission, such as move in certain section of region, UNICOM and telecommunications all has covering, and the signal of telecommunications is the strongest, the car ground information so in this section of region uses the communication module transmission of telecommunications; And in the region covered without cellular network, use satellite communication module to carry out train-ground communication.
Embodiment 7:
As shown in Figure 3, as a kind of preferred version of embodiment 6, wireless communication unit 3 also comprises radio communication private network module 34, for wireless private network communication, and such as GSM-R interface.Radio communication private network module 34 is connected with communication management module 33.
Especially, it should be noted that, mobile unit 1 can be independently realized separately by satellite communication and public cellular network with communicating of wayside equipment 2, and the communication between wayside equipment 2 and the communication between wayside equipment and ground other system also can be realized by wired network.In addition, also can the business of realization be jointly used to share on these two kinds of networks and radio communication private network, namely the information that different Internet Transmissions is different, be specially: the information (such as difference information) larger to data volume, mobile unit is sent to by satellite communication or cellular communication, and the information (such as train position report) less to data volume, transmit with private network, so both alleviate the load of private network, again reduce the communication delay of whole link, to train control system, there is positive effect.
Embodiment 8:
As a kind of preferred version of embodiment 6,7, wayside equipment 2 also comprises communication controller, be used for the position report sent according to the mobile unit 1 that receives, parse the communication port of train number number and current use, then specify this channel will drive a vehicle allowed transport to mobile unit 1.
Therefore, the mode that the present invention utilizes satellite communication and public cellular communication to combine achieves the reliable and stable continual mutual communication between mobile unit and wayside equipment, greatly reduce vehicle-ground wireless communication network construction cost, realize Automatic Control Systems for train operation.
Benly be, device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed on multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying performing creative labour, are namely appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that each embodiment can add required general hardware platform by software and realize, and can certainly pass through hardware.Based on such understanding, technique scheme can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can store in a computer-readable storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be Personal Computer, server, or the network equipment etc.) perform the method described in some part of each embodiment or embodiment.
Above-described embodiment, does not form the restriction to this technical scheme protection domain.The amendment done within any spirit at above-mentioned embodiment and principle, equivalently to replace and improvement etc., within the protection domain that all should be included in this technical scheme.
Claims (8)
1. based on the train control system that satellite communication communicates with public cellular, comprise mobile unit and wayside equipment, it is characterized in that, described mobile unit comprises wireless communication unit; Described wayside equipment comprises communication interface server; Described wireless communication unit, for carrying out information transmission by satellite communication with between public cellular communication network and described communication interface server; Described communication interface server, for receiving the position report that wireless communication unit is sent, and the driving license generated by wayside equipment and temporary speed limitation information send to wireless communication unit.
2. the train control system communicated with public cellular based on satellite communication according to claim 1, it is characterized in that, described mobile unit also comprises on-vehicle safety computing machine, positioning unit, integrity of train monitor unit, train interface unit, transponder unit, track circuit reading unit, judicial logger, human-computer interaction device;
Described on-vehicle safety computing machine, for receiving the original locating data of train and generating train position report, sends to described wayside equipment by wireless communication unit; Also receive the information such as driving license, line parameter circuit value, temporary speed limitation that described wayside equipment sends to go forward side by side row relax simultaneously, generate dynamic speed curve according to target range continuous velocity master mode, monitoring train operation;
Described positioning unit, for obtaining the information such as position, speed, mileage of current train, and sends to described on-vehicle safety computing machine;
Described integrity of train monitor unit, for monitoring integraty in train operation way;
Described train interface unit, for train braking interface, control train running speed;
Described transponder unit, for reading the responser information on track, and sends to on-vehicle safety computing machine;
Described track circuit reading unit, for reading the track circuit information on track, and sends to on-vehicle safety computing machine;
Described judicial logger, for recording the every terms of information in train operation, and generates train driving daily record;
Described human-computer interaction device, for carrying out man-machine interaction with trainman, for trainman provides the reference information of driving procedure;
Described on-vehicle safety computing machine is connected with positioning unit, integrity of train monitor unit, train interface unit, transponder unit, track circuit reading unit, judicial logger, human-computer interaction device, wireless communication unit respectively.
3. the train control system communicated with public cellular based on satellite communication according to claim 1, is characterized in that, described positioning unit adopts global position system, comprises GPS, the Big Dipper, Glonass, Galileo.
4. the train control system communicated with public cellular based on satellite communication according to claim 1, is characterized in that, described wayside equipment also comprises radio block center, station interlocking, difference base station;
Described radio block center, for obtaining the information such as interlock access, temporary speed limitation, and in conjunction with the train position report generation driving license that described mobile unit sends, and gives described mobile unit by information transmission such as driving license, line parameter circuit value, temporary speed limitations;
Described station interlocking, for controlling the route in station;
Described difference base station, for providing differential reference information for described mobile unit;
Described radio block center, difference base station, station interlocking mutually between adopt wire transmission network to be connected to communication interface server;
Described communication interface server is connected with radio block center, and described radio block center is connected with station interlocking, difference base station respectively.
5. the train control system communicated with public cellular based on satellite communication according to claim 4, it is characterized in that, described radio block center comprises temporary speed limitation receiver module, station interlocking information receiving module, train position report receiver module and driving license generation module; Wherein,
Described temporary speed limitation receiver module, for receiving the temporary speed limitation information that ground maneuvers center sends;
Described station interlocking information receiving module, for receiving the route information that station interlocking sends;
Described train position report receiver module, for receiving the train position report that described mobile unit sends;
Described driving license generation module, for the information received according to described temporary speed limitation receiver module, station interlocking information receiving module, train position report receiver module, generate driving License Info, and send to described mobile unit by communication interface server.
6. the train control system communicated with public cellular based on satellite communication according to claim 1, is characterized in that, described wireless communication unit comprises satellite communication module and some public cellular communication modules and communication management module;
Described satellite communication module, for satellite communication;
Described public cellular communication module, for public cellular communication;
Described communication management module is connected with satellite communication module and some public cellular communication modules respectively, is used to specify a certain or good communication module of certain several signal strength and sets up communication port.
7. the train control system communicated with public cellular based on satellite communication according to claim 6, is characterized in that, described wireless communication unit also comprises radio communication private network module, for wireless private network communication; Described communication management module is connected with radio communication private network module, satellite communication module and some public cellular communication modules respectively, is used to specify a certain or good communication module of certain several signal strength and sets up communication port.
8. the train control system communicated with public cellular based on satellite communication according to claim 6 or 7, it is characterized in that, described communication interface server also comprises communication controller, for the position report sent according to wireless communication unit, parse the communication port of train number number and current use, and specify this communication port that driving license is sent to wireless communication unit.
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