CN103457655A - Information transmission system and method - Google Patents
Information transmission system and method Download PDFInfo
- Publication number
- CN103457655A CN103457655A CN2012101693963A CN201210169396A CN103457655A CN 103457655 A CN103457655 A CN 103457655A CN 2012101693963 A CN2012101693963 A CN 2012101693963A CN 201210169396 A CN201210169396 A CN 201210169396A CN 103457655 A CN103457655 A CN 103457655A
- Authority
- CN
- China
- Prior art keywords
- information transmission
- transmission subsystem
- message
- station
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/005—Moving wireless 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses an information transmission system. The information transmission system comprises a first information transmission subsystem installed only at a station and a second information transmission subsystem installed on a train. The first information transmission subsystem and the second information transmission subsystem are characterized in that at least one wireless connection is established when the train parks at the station; the first information transmission subsystem transmits data information to the second information transmission subsystem through the wireless connections, and the wireless connections are off when the train leaves the station. The invention further discloses an information transmission method. The information transmission system and method has the advantages that throughput between the train and trackside facilities can be increased greatly and high-speed data transmission services can be achieved.
Description
Technical field
The present invention relates to wireless communication technology, particularly a kind of information transmission system and method.
Background technology
With cable communicating technology, compare, it is low that WLAN (wireless local area network) (WLAN) technology has an element cost, the advantage such as easy for installation, therefore be widely used in subway system, in order to realize in train control system and train and passenger information system the communication between facility by train and train rail.In current subway system, usually on the train of operation, wireless client is set, and at the other access point (AP that arranges of the track of train operation, Access Point), when train is advanced in orbit, wireless client on train can be set up wireless connections with the access point arranged in orbit, carries out information interaction, realizes Train Control and the application that realizes passenger information system.
Known in train control system, complete the required mutual amount of information of the control of train little, therefore, requirement to the message transmission rate between access point and wireless client is not high, but, in order to realize the application of passenger information system, particularly video traffic, need between access point and wireless client to have higher transmission rate.For example, train in advancing is during to passenger's displaying video programs, access point needs to transmit a large amount of video datas to wireless client at short notice, especially, if the video frequency program of playing is the high sharpness video program, at least need the transmission bandwidth of 12Mbps (MBPS) just can meet the demands.This just requires to need to adopt between access point and wireless client the Radio Transmission Technology of high-throughput.Yet, existing Radio Transmission Technology is difficult to meet the requirement of above-mentioned high traffic rate, for example, while adopting the 802.11g technology of WLAN, even enough be subject to by force and not under the perfect condition of any interference in signal strength signal intensity, a throughput limit that is wirelessly connected on application layer just can reach 24Mbps, and under real applied environment, due to the interference from other wireless communication systems be inevitably and also signal strength signal intensity do not reach enough by force yet, so the throughput between access point and wireless client does not reach the limit of above-mentioned throughput far away.Even access point and wireless client all maintain static, the throughput between access point and wireless client also can only reach about 10Mbps at most, and this throughput can not be supported the transmission of high-resolution video program.And, when train in the situation that fast moving, because wireless client need to, through the switching continually between access point of being everlasting, can cause the further reduction of throughput between access point and wireless client.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of information transmission system and a kind of information transferring method, can provide data transmission service at a high speed for station and train.
The described information transmission system of one embodiment of the invention, comprise a plurality of first information transmission subsystems and at least one installation the second message transmission subsystem ON TRAINS, wherein these a plurality of first information transmission subsystems only are arranged on respectively place, station and each station that the described trains of at least two confessions stop and are provided with at least one this first information transmission subsystem, this first information transmission subsystem and this second message transmission subsystem are configured to set up at least one wireless connections when described train rests in described station, and this first information transmission subsystem by described wireless connections to this second message transmission subsystem transmitting data information, and this first information transmission subsystem and this second message transmission subsystem also are configured to disconnect described at least one wireless connections when described train leaves described station.
Further, in a preferred implementation, this information transmission system further comprises control centre, is configured to determine the described data message that the described first information transmission subsystem be arranged on each place, described station need to be transmitted and is sent to corresponding described first information transmission subsystem.Regulate according to the feedback information of this first information transmission subsystem at one of them place that is arranged on described at least two stations the data message that the first information transmission subsystem at other places, stations will be transmitted.
Further, described first information transmission subsystem comprises the first control appliance and at least one access point, and described the second message transmission subsystem comprises the second control appliance and at least one wireless client.Wherein, described at least one access point and described at least one client are configured to a described access point and a described client when described train rests in described station and set up described wireless connections, and described at least one access point also is configured to disconnect described wireless connections when described train leaves described station with at least one corresponding wireless client.
Further, described first information transmission subsystem comprises at least two described access points, and described the first control appliance is configured to described data message is divided into to message part with this access point respective amount to be sent to corresponding described wireless client by described access point respectively, wherein, the second message transmission subsystem comprises at least two wireless clients, and this message part that the second control appliance is received each described client is merged into the described data message by described first information transmission subsystem transmission.
Another aspect of the present invention, a kind of method of communication is provided, for transmission information between the station of train and its stop, wherein said train is stopped at least two described stations, the method comprises: when described train is stopped described station, in a plurality of first information transmission subsystems and be arranged between the second message transmission subsystem on described train and set up at least one wireless connections, wherein said a plurality of first information transmission subsystem only is arranged on respectively place, described at least two stations and each station is provided with at least one this first information transmission subsystem, by described wireless connections from described first information transmission subsystem to described the second message transmission subsystem transfer data information, and described at least one wireless connections of disconnection when described train leaves described station.
Further, in one embodiment, describedly by described wireless connections, from transfer data information between described first information transmission subsystem and described the second message transmission subsystem, comprise: determine that the described data message that the described first information transmission subsystem that is arranged on each described station need to be transmitted also is sent to corresponding described first information transmission subsystem.Further, regulate according to the feedback information of this first information transmission subsystem that is arranged on one of them place, described station the data message that this first information transmission subsystem at other places, stations will be transmitted.
Further, described in a plurality of first information transmission subsystems and be arranged on and set up at least one wireless connections between the second message transmission subsystem on described train and comprise: as set up described at least one wireless connections between at least one wireless client of at least one access point of described first information transmission subsystem and described the second message transmission subsystem, and described at least one wireless connections of wherein said disconnection to comprise and disconnect the described wireless connections of setting up between described at least one access point and corresponding wireless client.
Further, described first information transmission subsystem and described the second message transmission subsystem are set up corresponding two or more described wireless connections by two or more access points and wireless client, wherein saidly by described, be wirelessly connected on transfer data information between described first information transmission subsystem and described the second message transmission subsystem and comprise: described data message is divided into to message part with described wireless connections respective amount to be sent to corresponding described wireless client by described access point respectively; And the described message part that each described client is received is merged into the described data message by this described first information transmission subsystem transmission.
Another aspect of the present invention, provide a kind of machine-readable storage medium, stores the instruction of the method for carrying out above-mentioned communication.
Another aspect of the invention, provide a kind of computer program, carries out the method for above-mentioned communication when described computer program runs in a machine.
The present invention, by setting up at least one wireless connections when the train inlet parking between first information transmission subsystem and the second message transmission subsystem, can obtain higher transmission rate, thereby provides the high speed data transfer business for station and train.
The accompanying drawing explanation
The internal structure schematic diagram that Fig. 1 is the described information transmission system of the embodiment of the present invention;
The structural representation that Fig. 2 is the described first information transmission subsystem of the embodiment of the present invention;
The structural representation that Fig. 3 is described the second message transmission subsystem of the embodiment of the present invention;
The flow chart that Fig. 4 is the described information transferring method of the embodiment of the present invention;
Embodiment
Fig. 1 illustrates one embodiment of the invention, and a kind of information transmission system 100, to realize the high speed data transfer business between train and station.
This information transmission system 100 comprises: a plurality of first information transmission subsystem 200 and installation the second message transmission subsystems 300 ON TRAINS that only are arranged on place, station that train is stopped, wherein, when train is stopped station, first information transmission subsystem 200 and the second message transmission subsystem 300 are set up at least one wireless connections 400, first information transmission subsystem 200 is passed through at least one set up wireless connections 400 need to send to the data message of this second message transmission subsystem to the second message transmission subsystem transmission, for example video program data or high sharpness video program data etc.Known in those skilled in the artly be, although in the present invention, purpose is to send data by first information transmission subsystem to the second message transmission subsystem, yet the needs according to transfer of data, the second message transmission subsystem also sends related data to first information transmission subsystem, for example, include but not limited to response message etc.Further, when train leaves station, first information transmission subsystem 200 and the second message transmission subsystem 300 disconnect at least one wireless connections 400 of setting up, and stop the transmission of data message.
These a plurality of first information transmission subsystems can be arranged on two or more places, station, and at least one first information transmission subsystem can be installed in each station.Like this, the above-mentioned information transmission system 100 also will comprise the control centre 500 for controlling a plurality of the first transmission subsystems 200, for determining the data message of first information transmission subsystem 200 transmission that need in each station, and will need the data message of first information transmission subsystem 200 transmission in each station to be distributed to the first information transmission subsystem 200 in each station.In an example, each station is equipped with the first information transmission subsystem of equal number.In another example, the first information transmission subsystem of varying number is installed at each station.Preferably, for installing and consideration easy to use, a first information transmission subsystem is installed at each station.
In one embodiment, this control centre 500 can send to by data message separately the first information transmission subsystem 200 that is arranged on each place, station in advance.When train rests in each station, the first information transmission subsystem 200 on this station will be by corresponding data information transfer to this second message transmission subsystem 300.The deployed position of control centre 500 can be determined according to concrete application, as long as can carry out data communication with each first information transmission subsystem.
And the feedback information of this first information transmission subsystem that this control centre 500 also can locate according to one of them station is adjusted the data message of the first information transmission subsystem transmission at other places, stations.For example, when train stops at current station, if first information transmission subsystem 200 does not send to the second message transmission subsystem 300 by whole data messages waiting for transmission, can send feedback information notice control centre 500, control centre 500 will regulate data message, thereby the part that this is not transmitted is transferred to the second message transmission subsystem 300 when train stops at this station by the first transmission subsystem 200 of the next stop.
In order to realize wireless transmission function, this first information transmission subsystem 200 comprises first control appliance and at least one access point, and wherein this system 200 can be respectively equipped with a buffer memory device by corresponding each access point.200 1 examples of above-mentioned first information transmission subsystem as shown in Figure 2, comprise the first control appliance 201, a plurality of buffer memory device 202 and a plurality of access point 203, and wherein, the plurality of buffer memory device 202 connects one to one with the plurality of access point 203 respectively.Perhaps, in the another one example, buffer memory device 202 can be integrated with access point 203.
Correspondingly, this second message transmission subsystem 300 comprises second control appliance and at least one wireless client, and wherein this system 300 can be respectively equipped with a buffer memory device by corresponding each wireless client.An example of above-mentioned the second message transmission subsystem 300 as shown in Figure 3, comprise a plurality of wireless clients 301, corresponding a plurality of buffer memory devices 302 and the second control appliance 303, wherein, the plurality of wireless client 301 connects one to one with the plurality of buffer memory device 302 respectively.Perhaps, in a further embodiment, buffer memory device 302 can be integrated with wireless client 301.
When train rests in station, each access point 203 of first information transmission subsystem 200 is set up wireless connections 400 with the corresponding wireless client 301 of the second message transmission subsystem 300 respectively, then, the data message in the buffer memory device of each access point 203 correspondences is sent in the buffer memory device of respective wireless client 301 correspondences by wireless connections.And, when train leaves described station, access point 203 disconnects the wireless connections 400 of setting up with corresponding wireless client 301 respectively, thus the transmission of Stop message.
Particularly, the data message that above-mentioned the first control appliance 201 need to send this first information transmission subsystem 200 is divided into the message part with the access point respective amount, and these message parts are buffered in respectively in the buffer memory device 202 that corresponding access point is corresponding.These access points 203 can be installed near the stop position of train, for example are arranged in respectively the track side in station.After wireless connections, access point sends to corresponding wireless client 301 by message part separately.
Accordingly, this wireless client 301 is arranged on train, for example, can distribute along train length.As mentioned above, when train is stopped station, wireless client 301 is set up respectively wireless connections with corresponding access point 203.Wireless client 301 receives the message part of these correspondence access point 203 transmission, and by received message part buffer memory to each self-corresponding buffer memory device 302.The message part that above-mentioned the second control appliance 303 receives each wireless client 301 is merged into the data message that first information transmission subsystem 200 transmits.Subsequently, this data message is transferred to the passenger information system on train by the communicator in train.
By the above-mentioned information transmission system, a large amount of data (for example one section longer video program data) can be divided into a plurality of parts, and when train is stopped each station, one or more parts are sent in the communicator of train, again the data of obtaining are sent to the passenger information system on train, for example to the passenger on train, play the video frequency program of buffer memory.Like this, do not need real-time transmission data, thereby can use data transfer bandwidth commonly used at present.
Fig. 4 illustrates another embodiment of the present invention, a kind of information transferring method 500, and it utilizes the above-mentioned information transmission system 100 transmission information between train and station, comprising:
In said method, step 510 further comprises that first information transmission subsystem 200 sets up at least one wireless connections 400 with at least one wireless client 301 of this second message transmission subsystem 300 respectively by its at least one access point 203.In one embodiment, utilize a plurality of access points and a plurality of wireless clients to set up corresponding a plurality of wireless connections.
Above-mentioned steps 520 further comprises: when in this first information transmission subsystem of at least two station setting, the data message that definite first information transmission subsystem that is arranged on each station need to be transmitted also sends to corresponding first information transmission subsystem.Further, be arranged on one of them place, described station this first information transmission subsystem feedback information and regulate the data message that this first information transmission subsystem at other places, stations will be transmitted.
It should be noted that, in order to reduce the interference between a plurality of wireless connections, can distribute different frequency ranges for each wireless connections, by rationalization, distribute the shared frequency of a plurality of wireless connections to reduce bandwidth; Perhaps adopt gain directional antenna to reduce the interference between a plurality of wireless connections.In addition, above-mentioned a plurality of wireless connections can adopt identical Radio Transmission Technology also can adopt different Radio Transmission Technologys.Described buffer memory device can adopt existing any suitable device, and each buffer memory device can be identical or different.
From the described data transmission system of the present embodiment method of unifying, can find out, due in the present embodiment, wireless connections only just start to set up and disconnect in the launch train operation in Train Stopping, be also, in the process that is established to disconnection of wireless connections, access point and wireless client are all fixed, and the wireless connections of therefore setting up are more stable, can obtain higher transmission rate.
In addition, in the present embodiment, when setting up at least one (particularly two or more) wireless connections between first information transmission subsystem 200 and the second message transmission subsystem 300, obtainable total throughput will be the several times of single wireless connections throughput, therefore be easy to meet the requirement to transmission bandwidth of video program data or hdtv video data.And the transmission system that the present embodiment provides and method are highly susceptible to expansion, can meet very easily the requirement of miscellaneous service to transmission rate.
Moreover, in the present embodiment, first information transmission subsystem is arranged on the place, station, rather than be arranged on the track of whole train, therefore, the expense of the cost of the infrastructure of the whole information transmission system (such as the access point that will install and the cable that will lay etc.) and installation, operation and maintenance is also limited.Perhaps, embodiments of the invention also can be combined with the existing equipment for the train data transmission, and wherein as previously mentioned, this existing equipment is arranged along train rail.Like this, can utilize existing equipment to supplement as system of the present invention.For example, can utilize system of the present invention when train rests in station, transmit a large amount of, non real-time information, in train travelling process, utilize existing system to transmit a small amount of, real time data simultaneously.
Finally, be buffered in respectively in a plurality of buffer memory devices 202 because first information transmission subsystem 200 will need a large amount of information to the second message transmission subsystem to be sent of access point 203 transmissions to be divided into a plurality of message parts, and be sent to the second message transmission subsystem 300 by a plurality of wireless connections 400; And in the second message transmission subsystem 300, a plurality of message parts that received by wireless client 301 also are buffered in respectively in a plurality of buffer memory devices 302, the mode of this parallel storage also can reduce the requirement to read or write speed and the memory capacity of single buffer memory device greatly, therefore, use cheap solid storage medium, for example flash memory, also be fine.Therefore, the system and method for application the present embodiment can meet the cost that greatly reduces system under the condition of business need.
It should be noted that in addition, although above-described embodiment be take subway system and described as example, the described information transmission system of the present embodiment and method also can be applied in other and the similar system of subway system, and are not limited to subway system.In this case, the second information subsystem is arranged on mobile entity, and first information transmission subsystem is arranged on to fixing position, when mobile entity rests on the position at first information transmission subsystem place, first information transmission subsystem and the second message transmission subsystem are set up at least one wireless connections and are started transfer of data; And, when mobile entity leaves the position at first information transmission subsystem place, first information transmission subsystem and the second message transmission subsystem disconnect at least one wireless connections of setting up, stop transfer of data.
The present invention also provides a kind of machine-readable storage medium, and storage is for making a machine carry out the instruction of information transferring method as described herein.Particularly, system or the device of being furnished with storage medium can be provided, storing the software program code of the function of arbitrary embodiment in realizing above-described embodiment on this storage medium, and making the computer (or CPU or MPU) of this system or device read and carry out the program code be stored in storage medium.
In this case, itself can realize the function of any one embodiment above-described embodiment the program code read from storage medium, so program code and program code stored storage medium have formed a part of the present invention.
For providing the storage medium embodiment of program code to comprise floppy disk, hard disk, magneto optical disk, CD (as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), tape, Nonvolatile memory card and ROM.Selectively, can be by communication network download program code from server computer.
In addition, be noted that, the program code that not only can read by object computer, and the operating system that can make by the instruction based on program code to calculate hands-operation etc. completes practical operation partly or completely, thereby realize the function of any one embodiment in above-described embodiment.
In addition, be understandable that, the program code that to be read by storage medium is write in memory set in the expansion board of inserting in computer or is write in the memory arranged in the expanding element be connected with computer, instruction based on program code subsequently makes to be arranged on the CPU on expansion board or expanding element etc. and comes operating part and all practical operations, thereby realizes the function of arbitrary embodiment in above-described embodiment.
Claims (12)
1. the information transmission system, it is characterized in that, this information transmission system comprises a plurality of first information transmission subsystems and at least one installation the second message transmission subsystem ON TRAINS, wherein these a plurality of first information transmission subsystems only are arranged on respectively the place, station that at least two described trains of confession are stopped, each station is provided with at least one this first information transmission subsystem
This first information transmission subsystem and this second message transmission subsystem are configured to set up at least one wireless connections when described train rests in each described station, and this first information transmission subsystem by described wireless connections to this second message transmission subsystem transmitting data information, and
This first information transmission subsystem and this second message transmission subsystem also are configured to disconnect described at least one wireless connections when described train leaves each described station.
2. the information transmission system according to claim 1, it is characterized in that, this information transmission system further comprises control centre, is configured to determine the described data message that the described first information transmission subsystem be arranged on each place, described station need to be transmitted and is sent to corresponding described first information transmission subsystem.
3. the information transmission system according to claim 1 and 2, it is characterized in that, described first information transmission subsystem comprises the first control appliance and at least one access point, described the second message transmission subsystem comprises the second control appliance and at least one wireless client, wherein, described at least one access point and described at least one client are configured to a described access point and a described client when described train rests in described station and set up described wireless connections, and described at least one access point also is configured to disconnect described wireless connections when described train leaves described station with at least one corresponding wireless client.
4. the information transmission system according to claim 3, it is characterized in that, described first information transmission subsystem comprises at least two described access points, and described the first control appliance is configured to described data message is divided into message part that should number of access point to be sent to corresponding described wireless client by described access point respectively
Wherein, the second message transmission subsystem comprises at least two wireless clients, and this message part that the second control appliance is received each described client is merged into the described data message by described first information transmission subsystem transmission.
5. the information transmission system according to claim 2, it is characterized in that, this control centre further is configured to regulate according to the feedback information of this first information transmission subsystem at one of them place that is arranged on described at least two stations the data message that the first information transmission subsystem at other places, stations will be transmitted.
6. the method for a communication, for transmission information between the station in train and its stop, wherein said train is stopped at least two described stations, it is characterized in that, and the method comprises:
When described train is stopped each described station, in a plurality of first information transmission subsystems and be arranged between the second message transmission subsystem on described train and set up at least one wireless connections, wherein said a plurality of first information transmission subsystems only are arranged on respectively place, described at least two stations and each station is provided with at least one this first information transmission subsystem;
By described wireless connections from described first information transmission subsystem to described the second message transmission subsystem transmitting data information; And
When leaving described station, described train disconnects described at least one wireless connections.
7. method according to claim 6, it is characterized in that, describedly transmit described data message from described first information transmission subsystem to described the second message transmission subsystem by described wireless connections and further comprise: determine that the described data message that the described first information transmission subsystem that is arranged on each described station need to be transmitted also is sent to corresponding described first information transmission subsystem.
8. according to the described method of claim 6 or 7, it is characterized in that, described in a plurality of first information transmission subsystems and be arranged on and set up at least one wireless connections between the second message transmission subsystem on described train and comprise: at least one access point of described first information transmission subsystem respectively and set up described at least one wireless connections between at least one wireless client of described the second message transmission subsystem, and described at least one wireless connections of wherein said disconnection comprise and disconnect the described wireless connections of setting up between described at least one access point and corresponding wireless client.
9. method according to claim 8, it is characterized in that, described first information transmission subsystem and described the second message transmission subsystem are set up corresponding two or more described wireless connections by two or more access points and wireless client, wherein saidly by described, be wirelessly connected on transfer data information between described first information transmission subsystem and described the second message transmission subsystem and comprise:
Described data message is divided into to message part with described wireless connections respective amount to be sent to corresponding described wireless client by described access point respectively; And
The described message part that each described client is received is merged into the described data message by this described first information transmission subsystem transmission.
10. method according to claim 7, is characterized in that, according to the feedback information of this first information transmission subsystem that is arranged on one of them place, described station, regulates the data message that this first information transmission subsystem at other places, stations will be transmitted.
11. a machine-readable storage medium, storage is for carrying out the instruction as method as described in claim 6 to 10 any one.
12. a computer program is carried out as method as described in any one in claim 6 to 10 when described computer program runs in a machine.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210169396.3A CN103457655B (en) | 2012-05-28 | 2012-05-28 | The information transmission system and method |
| PCT/EP2013/059453 WO2013178440A1 (en) | 2012-05-28 | 2013-05-07 | Information transmission system and method installed on a train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210169396.3A CN103457655B (en) | 2012-05-28 | 2012-05-28 | The information transmission system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103457655A true CN103457655A (en) | 2013-12-18 |
| CN103457655B CN103457655B (en) | 2017-06-09 |
Family
ID=48520906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210169396.3A Expired - Fee Related CN103457655B (en) | 2012-05-28 | 2012-05-28 | The information transmission system and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103457655B (en) |
| WO (1) | WO2013178440A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667848A (en) * | 2018-05-21 | 2018-10-16 | 南京大学 | A kind of system and its working method carrying out video cache, transcoding and transmission using vehicle-mounted AP |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2519561A (en) * | 2013-10-24 | 2015-04-29 | Vodafone Ip Licensing Ltd | Increasing cellular communication data throughput |
| EP3104636B8 (en) * | 2015-06-12 | 2021-12-29 | ALSTOM Transport Technologies | Improved wifi communication system for the exchange of data between a railway vehicle and a ground terminal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050276348A1 (en) * | 1999-04-19 | 2005-12-15 | Patrick Vandenameele | Method and apparatus for multi-user transmission |
| CN1744616A (en) * | 2004-09-02 | 2006-03-08 | 先锋株式会社 | Communication terminal apparatus, method of changing function and/or setting of communication terminal apparatus, and program |
| CN1842036A (en) * | 2005-03-28 | 2006-10-04 | 神州亿品科技有限公司 | Distributed multimedia information dissemination system |
| CN101791989A (en) * | 2010-03-31 | 2010-08-04 | 上海磁浮交通发展有限公司 | Traffic information network architecture system of self-controlling dispersion track |
| US20110194541A1 (en) * | 2008-01-16 | 2011-08-11 | Alstom Transjport Sa | Ip communication architecture between the ground and a vehicle |
| US20110230197A1 (en) * | 2010-03-22 | 2011-09-22 | Shiquan Wu | System and apparatus for high speed train communication |
| CN102404364A (en) * | 2010-09-14 | 2012-04-04 | 深圳市思科泰技术有限公司 | Cab signal wireless transmission system and method |
| CN102457285A (en) * | 2010-10-27 | 2012-05-16 | 国际商业机器公司 | Calibration of multiple parallel data communications lines for high skew conditions |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2129079A1 (en) * | 2008-05-29 | 2009-12-02 | Vodtec BVBA | An on-board module and associated method for delivery of content |
-
2012
- 2012-05-28 CN CN201210169396.3A patent/CN103457655B/en not_active Expired - Fee Related
-
2013
- 2013-05-07 WO PCT/EP2013/059453 patent/WO2013178440A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050276348A1 (en) * | 1999-04-19 | 2005-12-15 | Patrick Vandenameele | Method and apparatus for multi-user transmission |
| CN1744616A (en) * | 2004-09-02 | 2006-03-08 | 先锋株式会社 | Communication terminal apparatus, method of changing function and/or setting of communication terminal apparatus, and program |
| CN1842036A (en) * | 2005-03-28 | 2006-10-04 | 神州亿品科技有限公司 | Distributed multimedia information dissemination system |
| US20110194541A1 (en) * | 2008-01-16 | 2011-08-11 | Alstom Transjport Sa | Ip communication architecture between the ground and a vehicle |
| US20110230197A1 (en) * | 2010-03-22 | 2011-09-22 | Shiquan Wu | System and apparatus for high speed train communication |
| CN101791989A (en) * | 2010-03-31 | 2010-08-04 | 上海磁浮交通发展有限公司 | Traffic information network architecture system of self-controlling dispersion track |
| CN102404364A (en) * | 2010-09-14 | 2012-04-04 | 深圳市思科泰技术有限公司 | Cab signal wireless transmission system and method |
| CN102457285A (en) * | 2010-10-27 | 2012-05-16 | 国际商业机器公司 | Calibration of multiple parallel data communications lines for high skew conditions |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667848A (en) * | 2018-05-21 | 2018-10-16 | 南京大学 | A kind of system and its working method carrying out video cache, transcoding and transmission using vehicle-mounted AP |
| CN108667848B (en) * | 2018-05-21 | 2020-03-31 | 南京大学 | System for caching, transcoding and transmitting video by using vehicle-mounted AP (access point) and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013178440A1 (en) | 2013-12-05 |
| CN103457655B (en) | 2017-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100394738C (en) | Distributed multimedia information dissemination system | |
| WO2019137154A1 (en) | Train-ground wireless integrated bearing system and method employing lte-u | |
| CN102869062B (en) | A kind of WLAN rail communication system method of switching fast that realizes | |
| CN101998686B (en) | A kind of vehicle-mounted wireless communication method and system | |
| US20130344802A1 (en) | System and method for multi-tier automatic transit system updating | |
| CN101766039B (en) | Method for transmitting data in a wireless radio network | |
| KR20080070724A (en) | Method, system and arrangements for setting up and maintaining a wlan connection within predictably moving vehicles | |
| US20140045479A1 (en) | Communication control apparatus and communication control method | |
| CN102833874A (en) | Transportation means and roadside device communication method and communication system | |
| CN101577057A (en) | Method, system and mobile terminal for realizing public bus inquiry service | |
| JP2010141625A (en) | Radio transmitting system, radio base station apparatus, and communication channel selecting method | |
| CN109572753B (en) | Cross-line train VOBC configuration file processing method suitable for interconnection and interworking | |
| US20230388561A1 (en) | Content distribution and mobile wireless mesh networks | |
| TW201238373A (en) | Method for providing a vehicle with communication service and micro base station applied to the vehicle | |
| CN103457655A (en) | Information transmission system and method | |
| JP2019522924A (en) | Backhaul link with reference signal for distributed antenna system | |
| CN201550133U (en) | Train integrated management intelligent system | |
| CN102630096B (en) | High speed train communication management method, apparatus thereof and system thereof | |
| JP2009005240A (en) | Radio network system and radio network communication method | |
| CN108777875B (en) | Service processing method and device | |
| CN103857036A (en) | Method for paging terminal under mobile relay and device thereof | |
| CN102739797A (en) | New medium cloud system | |
| JP2010035182A (en) | Communication apparatus, method of communication, and recording medium | |
| CN109204384B (en) | Data transmission system and method for passenger information system PIS | |
| JP4818210B2 (en) | Wireless data communication simulation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190107 Address after: Munich, Germany Patentee after: Siemens Mobile Co., Ltd. Address before: Munich, Germany Patentee before: Siemens AG |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Munich, Germany Patentee after: Siemens Transport Co., Ltd. Address before: Munich, Germany Patentee before: Siemens Mobile Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20200528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |