WO2024041940A1 - Transmission de blocs de données utilisant un processus de stockage intermédiaire - Google Patents

Transmission de blocs de données utilisant un processus de stockage intermédiaire Download PDF

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Publication number
WO2024041940A1
WO2024041940A1 PCT/EP2023/072525 EP2023072525W WO2024041940A1 WO 2024041940 A1 WO2024041940 A1 WO 2024041940A1 EP 2023072525 W EP2023072525 W EP 2023072525W WO 2024041940 A1 WO2024041940 A1 WO 2024041940A1
Authority
WO
WIPO (PCT)
Prior art keywords
file
data blocks
storage devices
mobile communication
data
Prior art date
Application number
PCT/EP2023/072525
Other languages
German (de)
English (en)
Inventor
Roland Porsch
Original Assignee
Siemens Mobility GmbH
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 Siemens Mobility GmbH filed Critical Siemens Mobility GmbH
Publication of WO2024041940A1 publication Critical patent/WO2024041940A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching

Definitions

  • the invention relates to a method for transmitting a file between a mobile communication subscriber and a stationary communication subscriber, as well as a communication system for carrying out the method. Furthermore, the invention relates to a computer program and a computer-readable medium.
  • the amount of data to be transmitted is essentially limited by the available data transmission speed.
  • a maximum possible amount of data to be transmitted is specified. If this amount of data is exceeded, large costs usually arise.
  • the aforementioned restrictions become particularly relevant in the case of communication between a land-based system and a vehicle fleet consisting of a large number of vehicles. This often involves transferring the same file from the land-based system to the individual vehicles.
  • various types of data must be continuously transmitted from the individual vehicles to the land-based system. However, depending on the location or distance traveled by the individual vehicles, data transmission speeds can sometimes vary greatly.
  • the object of the invention is to enable improved transmission of files between a mobile and a stationary communication subscriber.
  • This task is solved by a method according to the features of independent claim 1.
  • this task is solved by a communication system with the features of the secondary system requirement.
  • a further object of the invention is to provide a computer program and a computer-readable medium.
  • the method according to the invention for transmitting a file between a mobile communication subscriber and a stationary communication subscriber provides for the file to be transmitted to be divided into several data blocks. These multiple data blocks are distributed to various decentralized storage devices in accordance with at least one parameter relating to the mobile communication subscriber.
  • the several data blocks belonging to this file are transmitted between the mobile communication subscriber and predetermined storage devices.
  • the several data blocks belonging to this file are transferred between the stationary communication subscriber and predetermined storage devices.
  • the storage device mentioned is a data storage in the sense of information technology.
  • the data memory is set up so that digital data can be written to it or digital data can be read from it.
  • the storage device is a solid-state memory or a flash memory.
  • the storage device mentioned is part of a data processing device.
  • This data processing device is preferably set up to store, read, write, transmit and/or manage data.
  • the data processing device can be, for example, a computer, a microcontroller or a comparable programmable hardware component with the storage device mentioned.
  • the parameter mentioned can, for example, relate to stopping points along a predetermined route, a property such as membership in a vehicle fleet, or an operating status of the mobile communication subscriber.
  • the transmission of data blocks between the stationary communication subscriber and the storage devices can be realized using a low data transmission speed.
  • a transmission between the mobile communication subscriber and a storage device and between the storage device and the stationary communication subscriber can be decoupled from one another in time.
  • an appropriate choice of the parameter makes it possible to further improve the efficiency of the file transfer.
  • an easily customizable process can be provided.
  • the file attribute mentioned can be, for example, a type of content, a number of data records, a number of data records per data record type, a creator of the file, an origin of the file, a size of the file, a predetermined group of recipients, a priority or a predetermined file type.
  • the type of content of a file mentioned can be, for example, advertising data, media data, process data, service data, maintenance data, communication data, timetable data, vehicle data or log data. In this way, a process for file transfer that can be adapted in a variety of ways and with little effort can be provided.
  • By selectively distributing the files based on their properties an ef fi cient use of available storage space can be achieved. In particular, there is no need for a blanket distribution of all files to be transferred to all storage devices.
  • an advantageous development provides that the multiple data blocks are distributed to predetermined storage devices mentioned in accordance with location information relating to the mobile communication subscriber.
  • the location information mentioned can be a GPS signal or information determined based on sensors or IP addresses.
  • reliable and ef fi cient data transmission can be achieved.
  • This makes it possible to always select the nearest storage location and thus a high transmission quality for the purpose of file transfer.
  • a transfer of the file from the storage devices mentioned to the mobile communication subscriber can be achieved largely independently of an external mobile radio network using local communication connections. A locally varying connection quality of the external mobile network is therefore of minor importance.
  • this makes it possible to transmit the data blocks at a very high data transmission speed. In addition, roaming fees due to data transmission across national borders can be avoided.
  • an advantageous development provides that the multiple data blocks are distributed to predetermined ones of the storage devices mentioned in accordance with an event plan relating to the mobile communication subscriber.
  • the event plan mentioned is understood to be a plan in which tasks, operating states or other events affecting the mobile communication subscriber are described depending on a schedule.
  • Such an event plan can be, for example, a timetable, a maintenance plan or an inspection plan.
  • a simple and reliable division of the data blocks can be planned at low cost. In particular, this makes it possible to easily use advantageous locations and longer downtimes for the purpose of transmitting data blocks. A transmission of data blocks during a movement of the mobile communication subscriber can thus advantageously be avoided.
  • an advantageous development provides that for the purpose of transferring the file from the stationary communication subscriber to the mobile communication subscriber, at least one data block of the plurality of data blocks is transmitted to various of the storage devices mentioned. In this way, a high level of operational reliability can be provided. For example, if a storage device fails or cannot be reached, the data block to be transferred can still be requested and downloaded from another storage device.
  • assignment information regarding the storage locations of the data blocks is transmitted.
  • the assignment information contains a list by means of which a storage location is linked to a data block stored at this storage location.
  • An advantageous embodiment variant provides that the data blocks of the file to be transmitted, downloaded by the mobile communication subscriber or the stationary communication subscriber from the various storage devices, are put together on the basis of the assignment information.
  • a complex, usually error-prone search for data blocks that belong together in a file or a compilation of the data blocks based on identification parameters can simply be dispensed with.
  • a further advantageous embodiment variant provides that a complete transmission of all data blocks belonging to a file is verified on the basis of the assignment information. In this way, operational reliability can be further increased. In particular, a largely error-free file transfer can be provided in this way. Furthermore, a checksum can be easily determined using the assignment information or one can already be transmitted. In this way, a cost-effective completeness check can be implemented.
  • a further advantageous development provides that receipt of all data blocks belonging to a file is confirmed by transmitting an acknowledgment of receipt. This makes it possible to make efficient use of limited storage space. For example, upon confirmation of receipt, taking into account further specifications, cached data blocks can be deleted and thus an occupied storage space can be released.
  • the method according to the invention can be carried out using the communication system according to the invention.
  • the communication system according to the invention has a mobile communication subscriber and a stationary communication subscriber. Furthermore, the communication system according to the invention has a data processing system with several decentrally arranged storage devices.
  • the storage devices mentioned are in particular storage devices of the type already described previously in connection with the method according to the invention.
  • the storage devices mentioned are further connected to the stationary communication subscriber by means of a network connection. Furthermore, data blocks of a file can be transferred from the stationary communication subscriber to the mobile communication subscriber by means of the various storage devices.
  • This communication system makes it possible to achieve reliable and rapid file transfer.
  • the network connection mentioned can be relieved.
  • a load of data to be transferred can be distributed evenly over a specified period of time.
  • data transmission can take place using the network connection mentioned using a low data transmission speed.
  • the mobile communication subscriber is designed as a vehicle.
  • the vehicle is designed as a rail-bound vehicle.
  • Common problems with mobile data transmission, such as connection interruptions or weak data transfer rates in mobile networks, can be overcome easily and inexpensively.
  • a reliable and cost-effective transfer of files can be made possible.
  • an advantageous development of the communication system provides that the storage devices are arranged along a predetermined route of the mobile communication subscriber. For example, storage devices are arranged at stops, maintenance depots and/or a marshalling yard. This makes it possible to provide and utilize high transmission quality at the intended locations of the mobile communication subscriber. In particular, data loss or inefficient use of an available data volume, for example due to connection interruptions, can be avoided. Furthermore, it is conceivable that storage devices are arranged at predetermined distances along the said path.
  • the storage devices are each part of a data processing device arranged at the location of the respective storage device.
  • a data processing device for example, a separate local communication network can be provided.
  • a direct connection of the storage device to a data processing device enables rapid transmission of data blocks. Furthermore, this makes it possible to provide high reliability and high operational security when transmitting data blocks.
  • a computer program which comprises commands which, when the computer program is executed by a data processing device, cause the communication system according to the invention to carry out the method according to the invention.
  • the data processing device mentioned is in particular the data processing device already described above.
  • the invention further provides a computer-readable medium.
  • This has instructions which, when executed by a data processing device, implement the invention Cause the communication system to carry out the method according to the invention.
  • the data processing device mentioned is in particular the data processing device already described above.
  • the computer-readable medium can be, for example, a CD-ROM, a DVD, a USB or flash memory or a non-physical medium such as a data stream and/or a data carrier signal.
  • FIG. 1 shows a schematic illustration of a first variant of an example of a method for transmitting data blocks of a file from a landside to a vehicle
  • FIG. 2 shows a schematic illustration of a second variant of the example of the method for transmitting data blocks of a file from the vehicle to the landside;
  • FIG. 3 shows an exemplary embodiment of a communication system, by means of which the in FIGS. 1 and 2 illustrated tered variants of the example of the method can be carried out.
  • FIG. 1 shows a first variant of an example of a method 100 for transmitting a file D between a landside 12 and a vehicle 14 in the form of a schematic flowchart.
  • the example of the method 100 can be carried out using the communication system 10 shown in FIG. 3.
  • the variant of the example of the method 100 described in connection with FIG. 1 relates to the transmission of a file D starting from the landside 12 to the vehicle 14.
  • the file D to be transferred is divided 102 into several data blocks B. It is conceivable that an event plan of the vehicle 14 is taken into account in the division 102. For example, the size of a data block B can be adjusted based on a predicted length of stay at a predetermined location.
  • the data blocks B mentioned are then distributed 104 to various decentrally arranged storage devices 18 in accordance with a parameter relating to the vehicle 14.
  • stopping points of the vehicle 14 along a route 22 intended for this vehicle 14 are initially used as parameters in the present case.
  • the data blocks B to be transmitted are distributed 104 to those storage devices 18 which spatially coincide with stopping points of the vehicle 14.
  • properties of the vehicle 14, such as membership in a vehicle fleet or a customer group, or an operating state, which relates, for example, to a break, ferry service or maintenance can be used as parameters for the distribution 104 mentioned. If data blocks B of several files D to be transferred are to be distributed 104, the data blocks B are distributed according to an attribute of a respective file D distributed 104 to the storage devices 18 selected according to the aforementioned parameter.
  • the attribute used is a relevance of the file D to be transferred.
  • data blocks B of a file D which is assigned a high relevance
  • data blocks B of a file D which is assigned a low relevance
  • the data blocks B to be transmitted are distributed 104 to the storage devices 18 mentioned on the basis of a timetable relating to the vehicle 14. In this way, a holding period and thus a possible transmission time between a storage device 18 and the vehicle 14 can be taken into account.
  • a larger number of data blocks B or a larger amount of data intended for the vehicle 14 can be stored on this storage device 18. If, on the other hand, only a short stay at a predetermined stop 24 is provided, then a number of stored data blocks B or a certain amount of data for this vehicle 14 can be kept low. Alternatively or additionally, a maintenance plan can be used for the purpose of distributing 104 the data blocks B to the storage devices 18 mentioned.
  • a stay of the vehicle 14 in a maintenance depot 26 is of a longer duration, whereby a large number of data blocks B and/or a large amount of data can be transferred 106 from a storage device 18 arranged in the maintenance depot 26 to the vehicle 14.
  • the present example of the method 100 further provides that individual data blocks B are transferred 108 from the landside 12 to several of the different storage devices 18. In this way, it can be prevented that an opportunity to transmit 106 a data block B from a storage device 18 to the vehicle 14 is missed. If, for example, a communication connection between a storage device 18 and the vehicle 14 is terminated or aborted before a successful transmission 106 of the data block B, the vehicle 14 has the option of downloading 106 this data block B from another storage device 18.
  • assignment information Z is created by the land side 12, by means of which the distribution 104 of the data blocks B to the various storage devices 18 is documented and which is transmitted 116 to the vehicle 14.
  • This assignment information Z contains information regarding the storage locations of the data blocks B.
  • the vehicle 14 it is possible for the vehicle 14 to assign the 106 data blocks B, which are initially randomly read from various storage devices 18 by the vehicle 14, to a file D to be transmitted in a cost-effective manner.
  • the file D to be transmitted is assembled 110 in the vehicle 14.
  • a checksum is transmitted 116 with the assignment information Z.
  • FIG. 2 shows a second variant of the example of the method 100, in which a file D is transferred from the vehicle 14 to the Land side 12 is transmitted.
  • a file D is transferred from the vehicle 14 to the Land side 12 is transmitted.
  • the transmission of a file D takes place in the opposite direction.
  • the file D to be transferred is first divided 102 into several data blocks B.
  • the multiple data blocks B of the file D to be transferred are distributed 104 to the storage devices 18 in accordance with a location of the vehicle 14.
  • the aforementioned distribution 104 takes place by changing the location of the vehicle 14.
  • this is transferred 106 from the vehicle 14 to the storage device 18 for the purpose of transmitting at least one data block B.
  • an event plan of the vehicle 14 is taken into account in the distribution 104, so that in addition to a spatial proximity between the vehicle 14 and the storage device 18, an intended length of stay in the distribution 104 can be taken into account.
  • the distribution 104 takes place in the case of several files D to be transmitted from the vehicle 14 to the landside 12 according to a relevance of the respective file D.
  • further attributes of a file such as a file type or a type of content of the file, can be taken into account in the distribution 104.
  • an event plan of the vehicle 14 can be taken into account when dividing 102 the data blocks B.
  • a timetable and a maintenance plan of the vehicle 14 can be used for the purpose of dividing the file D into data blocks B as required.
  • data blocks B can be transferred 106 to this storage device 18 depending on the intended length of stay of the vehicle 14 at a storage device 18.
  • the vehicle 14 After a data block B has been successfully transferred 106 from the vehicle 14 to a storage device 18, the vehicle 14 documents a storage location of the data block B and associates it with the storage device 18. In this way, the vehicle 14 creates assignment information Z. As soon as all data blocks B of a file D to be transferred have been transferred 106 to storage devices 18, the vehicle 14 transmits this assignment information Z to the landside 12. Based on the assignment information Z, the required data blocks B are then transferred 108 between the corresponding storage devices 18 and the land side 12. As already described in connection with FIG. 1, a checksum is transmitted 116 together with the assignment information Z for the purpose of verifying 112 a complete transmission of the file D to be transmitted.
  • all data blocks B belonging to a file D are put together 110 based on the assignment information Z. In the present example, whether all data blocks B are present is verified 112 using the transmitted checksum. After a successful verification 112 is present, a confirmation of receipt 114 is transmitted to the vehicle 14 by the landside 12. After receiving this confirmation of receipt 114, the vehicle 14 can delete the file D to be transmitted. This makes it possible to make efficient use of limited storage space.
  • FIG. 3 shows a schematic representation of an exemplary embodiment of a communication system 10.
  • This communication system 10 has the aforementioned vehicle 14 as an example. This is designed, for example, as a rail-bound passenger transport vehicle. Furthermore, FIG. 3 shows the previously mentioned land page 12, which has a stationary server. Furthermore, the communication system 10 has a data processing system 16. This data processing system 16 has the previously mentioned decentralized storage devices 18. Each storage device 18 is, for example, part of a data processing system (not shown) that is arranged at the same location. processing device. Furthermore, each of the decentralized storage devices 18 mentioned is connected to the landside 12 by means of a network connection 20 for the purpose of transmitting data blocks B of a file D. In addition, the several decentrally arranged storage devices 18 are set up to transmit 106, 108 the file D to be transmitted in the form of data blocks B between the landside 12 and the vehicle 14.
  • FIG. 3 shows, by way of example, that the storage devices 18 mentioned are arranged along an intended route 22 of the vehicle 14.
  • the storage devices 18 are placed, for example, at stops 24 and in a maintenance depot 26.
  • further storage devices 18 are arranged distributed along the route 22 at predetermined intervals in a manner not shown.

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

Abstract

L'invention concerne un procédé (100) de transmission de fichiers (D) entre un participant de communication fixe (12) et un participant de communication mobile (14). Dans le processus, le fichier (D) est divisé (102) en de multiples blocs de données (B) qui sont distribués (104) à différents dispositifs de stockage (18) agencés de manière décentralisée en fonction d'au moins un paramètre relatif au participant de communication mobile (14). Afin de transmettre le fichier (D), la pluralité de blocs de données (B) appartenant au fichier (D) est transmise (106) entre le participant de communication mobile (14) et des dispositifs de stockage spécifiés (18). En variante ou en plus, les blocs de données (B) sont transmis (108) entre le participant de communication fixe (12) et des dispositifs de stockage spécifiés (18).
PCT/EP2023/072525 2022-08-24 2023-08-16 Transmission de blocs de données utilisant un processus de stockage intermédiaire WO2024041940A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022208768.2A DE102022208768A1 (de) 2022-08-24 2022-08-24 Übertragung von Datenblöcken mittels Zwischenspeichern
DE102022208768.2 2022-08-24

Publications (1)

Publication Number Publication Date
WO2024041940A1 true WO2024041940A1 (fr) 2024-02-29

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PCT/EP2023/072525 WO2024041940A1 (fr) 2022-08-24 2023-08-16 Transmission de blocs de données utilisant un processus de stockage intermédiaire

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WO (1) WO2024041940A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200348923A1 (en) * 2019-04-30 2020-11-05 Ford Global Technologies, Llc Vehicle update data sharing
EP3964419A1 (fr) * 2020-09-02 2022-03-09 Siemens Mobility GmbH Transmission des données entre un véhicule guidé sur rails et un dispositif terrestre

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
EP1376940B1 (fr) 2002-06-20 2004-09-29 Siemens Aktiengesellschaft Procédé pour la transmission de données
DE10351431A1 (de) 2003-10-28 2005-06-16 Mario Lehmann Kommunikationssystem
DE102017203040A1 (de) 2017-02-24 2018-08-30 Siemens Aktiengesellschaft Ad-hoc-Kommunikationsnetzwerk
EP3383094B1 (fr) 2017-03-31 2019-10-23 Deutsche Telekom AG Système et procédé de transfert de contenus ayant un grand volume de données dans un laps de temps court
EP4298005A1 (fr) 2021-04-14 2024-01-03 Siemens Mobility GmbH Commande d'une transmission de données entre un véhicule guidé sur rails et un dispositif terrestre au moyen du dispositif terrestre

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200348923A1 (en) * 2019-04-30 2020-11-05 Ford Global Technologies, Llc Vehicle update data sharing
EP3964419A1 (fr) * 2020-09-02 2022-03-09 Siemens Mobility GmbH Transmission des données entre un véhicule guidé sur rails et un dispositif terrestre

Non-Patent Citations (1)

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Title
MAHMOOD A ET AL: "Mobility-aware edge caching for connected cars", 2016 12TH ANNUAL CONFERENCE ON WIRELESS ON-DEMAND NETWORK SYSTEMS AND SERVICES (WONS), IFIP, 20 January 2016 (2016-01-20), pages 1 - 8, XP032878386 *

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