WO2013072987A1 - Système et procédé de transmission de données - Google Patents

Système et procédé de transmission de données Download PDF

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Publication number
WO2013072987A1
WO2013072987A1 PCT/JP2011/076197 JP2011076197W WO2013072987A1 WO 2013072987 A1 WO2013072987 A1 WO 2013072987A1 JP 2011076197 W JP2011076197 W JP 2011076197W WO 2013072987 A1 WO2013072987 A1 WO 2013072987A1
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WO
WIPO (PCT)
Prior art keywords
data
vehicle
individual
transmission
distribution device
Prior art date
Application number
PCT/JP2011/076197
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English (en)
Japanese (ja)
Inventor
鶴本　伸一
健一 石栗
Original Assignee
三菱電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2011/076197 priority Critical patent/WO2013072987A1/fr
Publication of WO2013072987A1 publication Critical patent/WO2013072987A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0018—Communication with or on the vehicle or train
    • B61L15/0036—Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0072—On-board train data handling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/40—Handling position reports or trackside vehicle data

Definitions

  • the present invention relates to a data transmission system for transmitting data between a train side and a ground side.
  • Patent Document 1 when there are a plurality of contents as data to be distributed from the ground side, a technique is disclosed in which priority is given to the contents and distribution is performed from the highest priority. As a result, high-priority content can be efficiently distributed to the train.
  • the present invention has been made in view of the above, and an object thereof is to obtain a data transmission system capable of efficiently transmitting data transmitted from both the ground side and the train side.
  • the present invention is a data transmission system that transmits data between the ground side and the vehicle side, and is installed on the ground side and transmits to the vehicle side.
  • An individual distribution device holding device table information representing target data, and vehicle table information representing data to be transmitted to the individual distribution device when entering the communication area of the individual distribution device to the individual distribution device.
  • the individual delivery device is based on the device table information and the vehicle table information, and the individual delivery device is arranged between the vehicle and itself in descending order of priority given to each data to be transmitted.
  • the transmission order in which data is transmitted is determined, and the vehicle and the individual distribution device transmit data according to the transmission order.
  • the data transmission system according to the present invention has an effect that data transmitted from both the ground side and the train side can be efficiently transmitted.
  • FIG. 1 is a diagram illustrating a configuration example of a data transmission system.
  • FIG. 2 is a diagram illustrating that data transmission opportunities between the individual distribution device and the vehicle are limited.
  • FIG. 3 is a flowchart showing the data transmission process.
  • FIG. 4 is a diagram illustrating a process of transmitting only the difference content between the ground side and the train side.
  • FIG. 1 is a diagram illustrating a configuration example of a data transmission system according to the present embodiment.
  • the data transmission system includes an editing device 10, a content database (DB) 20, a distribution server 30, individual distribution devices 41 to 45, and vehicles 51 to 55.
  • Devices other than the vehicles 51 to 55 are devices installed on the ground side.
  • the editing device 10 edits data of distribution contents transmitted from the ground side to the vehicle upper side (vehicles 51 to 55).
  • the content data to be transmitted specifically to the vehicles 51 to 55 the on-board software for improving the software malfunction of the devices and the like mounted on the trains 51 to 55
  • the trains 51 to 55 are on the route.
  • On-board destination content which is display information such as destination information when traveling and information on a station where the vehicle stops, on-vehicle news content and a vehicle for display on a display device for passengers installed in each train 51-55 Assume top advertising content.
  • the editing device 10 stores the distribution content data in a prescribed location of the content DB 20.
  • the content DB 20 is a storage unit that stores distribution content data distributed to the vehicles 51 to 55. Further, on-vehicle information data to be described later, which is data from the vehicles 51 to 55 to the ground side, is also stored.
  • the distribution server 30 confirms the data of the distribution content stored in the content DB 20 according to the specified regular schedule, specifically the creation date and time of each content and the like, and the data such as the content updated since the previous confirmation In some cases, the updated data is read from the content DB 20 and distributed to the individual distribution devices 41 to 45 designated as distribution destinations. In addition, when the distribution server 30 acquires on-board information data from each of the individual distribution devices 41 to 45, the distribution server 30 stores the on-board information data in a specified location of the content DB 20.
  • the individual distribution devices 41 to 45 distribute the distribution content data distributed from the distribution server 30 to vehicles (train formation) corresponding to each one-to-one. Specifically, for the individual distribution devices 41 to 45, when the train operating company is operating a plurality of routes, one individual distribution device is prepared for each route. And the corresponding individual delivery apparatus delivers the data of delivery content with respect to the train organization (a plurality may be sufficient) which drive
  • the present invention is not limited to this, and the number of individual distribution devices may be one as long as the number of operating routes is one.
  • a plurality of devices corresponding to the individual distribution device 41 may be provided in one route. It can be distributed at a plurality of locations within the same route.
  • the individual distribution devices 41 to 45 receive the on-board information data from the vehicles 51 to 55 respectively corresponding to the one-to-one correspondence, the individual distribution devices 41 to 45 transmit the received on-board information data to the distribution server 30.
  • Vehicles 51-55 are train formations to which distribution content data is distributed from corresponding individual distribution devices 41-45.
  • Each of the vehicles 51 to 55 has a display device capable of reproducing each content.
  • one vehicle is associated with each individual distribution device, but as described above, each vehicle shows a train organization that travels on different routes. Therefore, in practice, the corresponding individual distribution device distributes the data of the distribution content to all train formations traveling on each route.
  • Each of the vehicles 51 to 55 collects on-vehicle failure information indicating its own failure state and on-vehicle display result data indicating the display results of each content, and the individual distribution devices corresponding to these data as on-vehicle information data Send to 41-45.
  • the editing device 10 stores the distribution content data in the content DB 20.
  • the distribution server 30 periodically checks the content DB 20, and when there is data of the distribution content updated since the previous confirmation, reads it from the content DB 20 and distributes it to the individual distribution devices 41 to 45.
  • the individual distribution devices 41 to 45 transmit the distribution content data to the target vehicles 51 to 55.
  • the vehicles 51 to 55 transmit the vehicle information data to the target individual distribution devices 41 to 45, and the individual distribution devices 41 to 45 transmit the received vehicle information data to the distribution server 30.
  • the distribution server 30 stores the received on-vehicle information data in the content DB 20.
  • the editing device 10 periodically checks the content DB 20 and reads the vehicle information data.
  • the distribution server 30 stores the on-vehicle information data in the content DB 20 and also notifies the editing device 10 that there is on-vehicle failure information. Is possible.
  • the editing device 10 can read out vehicle failure information that requires real-time performance in accordance with a notification from the distribution server 30.
  • the distribution server 30 is not limited to the on-vehicle failure information, and can notify the editing device 10 of other information that requires real-time performance. Similarly, the editing device 10 can read other information that requires real-time performance in accordance with the notification.
  • data transmission between the individual distribution devices 41 to 45 and the vehicles 51 to 55 is not always possible, and is limited by the positions of the vehicles 51 to 55 and the like.
  • FIG. 2 is a diagram showing that data transmission opportunities between the individual distribution device and the vehicle are limited.
  • FIG. 1 shows a case where data is transmitted between the distribution server 30, the individual distribution device 41, and the vehicle 51. The same applies to the case where the other individual distribution devices 42 to 45 and the corresponding vehicles 52 to 55 are used.
  • the distribution server 30 and the individual distribution device 41 are installed on the ground side, and the individual distribution device 41 and the distribution server 30 installed at the station base are connected by a ground network system such as a wide area network.
  • the train (vehicle 51) that is actually running can transmit data to and from the individual distribution device 41 only within the transmission / reception range from the antenna 61 connected to the individual distribution device 41.
  • Examples of a method in which the individual distribution device 41 and the vehicle 51 communicate with each other via the antenna 61 include a wireless LAN and a millimeter wave, but other methods may be used.
  • the period during which data can be transmitted between the individual distribution device 41 and the vehicle 51 is limited when the vehicle 51 approaches the station base or is stopped.
  • the priority of each data is set in the descending order of (1) on-vehicle failure information, (2) on-vehicle software, (3) on-vehicle destination content, (4) on-vehicle news content, ( 5) On-vehicle advertisement content, (6) On-vehicle display performance data, and priority is given to each data for all data included in the distribution content and on-vehicle information. For example, when it is necessary to transmit on-vehicle failure information from the vehicle 51 to the individual delivery device 41, this is transmitted with the highest priority. Then, on the next transmission opportunity, data is transmitted from the individual distribution device 41 to the vehicle 51 in the order of on-board software, on-board destination content,. Here, the individual distribution device 41 determines the order of transmitting data according to the priority.
  • FIG. 3 is a flowchart showing data transmission processing in the data transmission system.
  • the vehicle 51 enters the communication area of the antenna 61 connected to the individual distribution device 41, the vehicle 51 has presence or absence of vehicle information to be transmitted to the individual distribution device 41, specifically, vehicle failure information to be transmitted.
  • the table information vehicle table information which shows the presence or absence of display data on a vehicle is transmitted to the separate delivery apparatus 41 (step S1).
  • a table indicating presence / absence of distribution content to be transmitted to the vehicle 51 specifically, presence / absence of on-board software, on-vehicle destination content, on-vehicle news content, and on-vehicle advertisement content to be transmitted.
  • the information (device table information) is held, and based on the vehicle table information acquired from the vehicle 51 and its own device table information, the data transmission order is determined in descending order of priority given to each data (Ste S2). For example, when there is on-vehicle failure information to be transmitted from the vehicle 51 to the individual distribution device 41, the individual distribution device 41 first determines to transmit the on-vehicle failure information from the vehicle 51 to the individual distribution device 41. The individual distribution device 41 notifies the vehicle 51 of the determined transmission order.
  • the individual distribution device 41 and the vehicle 51 perform data transmission in accordance with the determined transmission order (step S3).
  • the data transmitted from the individual distribution device 41 and the vehicle 51 can be transmitted in order from the one having higher priority data, so that the data can be transmitted efficiently.
  • each data shown in the distribution content and the on-board information is an example, and other data can be added or deleted.
  • the above-mentioned priority is an example, and the priority can be freely changed by setting it separately in the individual distribution device 41. Thereby, the optimal transmission order can be set according to the customer's request, system configuration, and the like.
  • each table information indicates the presence or absence of data, but is not limited to this.
  • the information indicated by each table information may be information indicating the update / acquisition time of each data, and data having a date and time newer than the previous transmission opportunity may be handled as a transmission target.
  • the individual distribution device 41 that has received the on-board table information specifies data to be transmitted from the vehicle 51.
  • the individual distribution device 41 and the vehicle 51 have been described as an example, but the present invention can also be applied to data transmission between the other individual distribution devices 42 to 45 and the corresponding vehicles 52 to 55. is there.
  • data transmitted from the individual distribution device on the ground side to the vehicle, and data transmitted from the vehicle to the individual distribution device on the ground side are set for each of all the data.
  • a priority is given to the data, and the data with the corresponding priority is transmitted in order from the one having the higher priority data.
  • Embodiment 2 when data transmission is performed between the individual distribution device and the vehicle, priority is given to all data transmitted from both, and the transmission order is determined based on this priority. In the present embodiment, the transmission order of data transmission between the distribution server and the individual distribution device will be described. A different part from Embodiment 1 is demonstrated.
  • the data transmission between the distribution server 30 and the individual distribution device 41 is different from the data transmission between the individual distribution device 41 and the vehicle 51 and can be always connected via the ground network system. is there.
  • the timing at which the distribution server 30 confirms the content DB 20 and transmits the data of the distribution content and the timing at which the individual transmission device 41 transmits the on-vehicle information data received from the vehicle 51 to the distribution server 30 are not necessarily the same. It is not a thing.
  • on-vehicle advertisement content which is data constituting the distribution content, is considered to have a large capacity for each content, and depending on the system configuration, there is a case where the bandwidth of the terrestrial network is not sufficiently secured.
  • the individual distribution device 41 when the individual distribution device 41 receives the vehicle information data from the vehicle 51, the individual distribution device 41 transmits the reception vehicle table information based on the vehicle information data to the distribution server 30.
  • the on-vehicle table information indicates the presence / absence of on-vehicle information to be transmitted to the distribution server 30, specifically, data received from the vehicle 51 (on-vehicle failure information, on-vehicle display performance data).
  • the distribution server 30 holds table information (server table information) indicating the presence / absence of distribution content to be distributed to the individual distribution device 41, and receives the on-vehicle table information acquired from the individual distribution device 41 and its own server. Based on the table information, the data transmission order is determined in descending order of priority given to each data. The priorities are as described above, and the transmission order here is the same as the transmission order between the individual distribution device 41 and the vehicle 51, (1) on-vehicle failure information, (2) on-vehicle software,. It becomes the order of. The distribution server 30 notifies the individual distribution device 41 of the determined transmission order.
  • the distribution server 30 and the individual distribution device 41 transmit data according to the determined transmission order. As described above, the data transmitted from the distribution server 30 and the individual distribution device 41 can also be transmitted in order from the one having higher priority data, and efficient transmission can be performed.
  • the priority of each data can be freely changed by setting separately in the individual delivery apparatus 41 or the delivery server 30.
  • an optimal transmission order can be set according to the customer's request, system configuration, and the like.
  • the on-vehicle table information indicates the presence / absence of data, it is not limited to this. As in the first embodiment, it is possible to use information indicating the update / acquisition time of each data, and handle data having a date and time newer than the previous transmission opportunity as a transmission target. In this case, for example, the distribution server 30 that has received the on-vehicle table information specifies data to be transmitted from the individual distribution device 41.
  • both the data transmission between the distribution server and the individual distribution device are the same as the data transmission between the individual distribution device and the vehicle described in the first embodiment. Priority is given to each data for all data, and data with the corresponding priority is transmitted in order from the one with higher priority data. Thereby, it is possible to efficiently perform data transmission between the distribution server and the individual distribution device in order of higher priority without being biased toward data transmission from one side.
  • Embodiment 3 In the first embodiment, when the distribution content data is transmitted from the individual distribution devices 41 to 45 to the corresponding vehicles 51 to 55, the content data already owned by the vehicles 51 to 55 is not transmitted. By transmitting only the content data that is not owned by .about.55, the amount of data to be transmitted can be reduced to the minimum.
  • FIG. 4 is a diagram illustrating a process of transmitting only the difference content between the ground side and the train side.
  • the individual distribution device 41 requests the owned content list from the vehicle 51.
  • the vehicle 51 transmits a list of contents owned by the vehicle 51 to the individual distribution device 41.
  • the individual distribution device 41 searches for content that is insufficient among content to be distributed to the vehicle 51. For example, as shown in FIG. 4, in the individual distribution device 41, among the ten contents A to J to be distributed to the vehicle 51, the vehicle 51 actually uses the contents A to D, F, Recognize that I have 7 items from I to J. Therefore, the individual distribution device 41 calculates that the insufficient content is the contents E, G, and H, and transmits only the calculated three contents to the vehicle 51 as difference contents.
  • the individual distribution device 41 transmits in order of priority according to the priority of each content.
  • priority is given to each content (3) on-vehicle destination content, (4) on-vehicle news content, and (5) on-vehicle advertisement content, for example, content E.
  • the individual distribution device 41 When the priority is higher in the order of G and H, the individual distribution device 41 first transmits only the content E and transmits the content G and H at the next transmission opportunity.
  • the present invention can also be applied between the other individual distribution devices 42 to 45 and the corresponding vehicles 52 to 55. Further, although the first embodiment has been described, the present invention can also be applied to the second embodiment.
  • the content data held by the vehicle is confirmed, and only the content data not owned is transmitted. It was decided to. Thereby, the amount of data transmitted from the individual distribution device to the vehicle can be reduced, and data transmission can be performed efficiently.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un système de transmission de données caractérisé en ce que la transmission de données est effectuée entre une extrémité terrestre et une extrémité de véhicule, comportant : des dispositifs individuels (41 à 45) de câblage disposés à l'extrémité terrestre qui renferment des informations de table de dispositifs exprimant des données sur des objets de transmission à transmettre à des véhicules (51 à 55) ; et des véhicules (51 à 55) qui, suite à l'entrée desdits dispositifs individuels (41 à 45) de câblage dans une zone de communication, transmettent à ces dispositifs individuels (41 à 45) de câblage des informations de table de véhicules exprimant les données sur les objets de transmission à transmettre auxdits dispositifs individuels (41 à 45) de câblage. Sur la base desdites informations de table de dispositifs et desdites informations de table de véhicules, les dispositifs individuels (41 à 45) de câblage déterminent la séquence de transmission de données entre eux-mêmes et lesdits véhicules (51 à 55) par ordre de priorité conférée aux éléments de données qui font l'objet de la transmission. Lesdits véhicules (51 à 55) et lesdits dispositifs individuels (41 à 45) de câblage effectuent la transmission de données selon ladite séquence de transmission.
PCT/JP2011/076197 2011-11-14 2011-11-14 Système et procédé de transmission de données WO2013072987A1 (fr)

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PCT/JP2011/076197 WO2013072987A1 (fr) 2011-11-14 2011-11-14 Système et procédé de transmission de données

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PCT/JP2011/076197 WO2013072987A1 (fr) 2011-11-14 2011-11-14 Système et procédé de transmission de données

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2840010A1 (fr) * 2013-08-21 2015-02-25 Siemens S.A.S. Méthode et système de transfert de données haut débit bi-directionnel pour un mobile en déplacement le long d'une voie
CN104386098A (zh) * 2014-11-10 2015-03-04 北京交控科技有限公司 一种轨道交通线路地理信息的描述方法
JP2015196422A (ja) * 2014-03-31 2015-11-09 公益財団法人鉄道総合技術研究所 無線による車上装置のデータベースのデータ更新方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001077774A (ja) * 1999-08-31 2001-03-23 Nippon Signal Co Ltd:The データ配信システム及び列車内情報提供システム
JP2010013072A (ja) * 2008-07-07 2010-01-21 Mitsubishi Electric Corp 旅客情報案内装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001077774A (ja) * 1999-08-31 2001-03-23 Nippon Signal Co Ltd:The データ配信システム及び列車内情報提供システム
JP2010013072A (ja) * 2008-07-07 2010-01-21 Mitsubishi Electric Corp 旅客情報案内装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2840010A1 (fr) * 2013-08-21 2015-02-25 Siemens S.A.S. Méthode et système de transfert de données haut débit bi-directionnel pour un mobile en déplacement le long d'une voie
WO2015024709A1 (fr) * 2013-08-21 2015-02-26 Siemens S.A.S. Méthode et système de transfert de données haut débit bidirectionnel pour un mobile en déplacement le long d'une voie
JP2015196422A (ja) * 2014-03-31 2015-11-09 公益財団法人鉄道総合技術研究所 無線による車上装置のデータベースのデータ更新方法
CN104386098A (zh) * 2014-11-10 2015-03-04 北京交控科技有限公司 一种轨道交通线路地理信息的描述方法

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