EP3992056A1 - Procédé mis en oeuvre par ordinateur pour produire une carte d'une ligne de chemin de fer et programme informatique associé - Google Patents

Procédé mis en oeuvre par ordinateur pour produire une carte d'une ligne de chemin de fer et programme informatique associé Download PDF

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Publication number
EP3992056A1
EP3992056A1 EP21204920.9A EP21204920A EP3992056A1 EP 3992056 A1 EP3992056 A1 EP 3992056A1 EP 21204920 A EP21204920 A EP 21204920A EP 3992056 A1 EP3992056 A1 EP 3992056A1
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EP
European Patent Office
Prior art keywords
record
infrastructure
signaling
signaling device
registered
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.)
Pending
Application number
EP21204920.9A
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German (de)
English (en)
Inventor
Simone DURAZZANI
Daniele POGGI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TeSiFer Srl
Te Si Fer Srl
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TeSiFer Srl
Te Si Fer Srl
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Application filed by TeSiFer Srl, Te Si Fer Srl filed Critical TeSiFer Srl
Publication of EP3992056A1 publication Critical patent/EP3992056A1/fr
Pending legal-status Critical Current

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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
    • B61L15/009—On-board display devices
    • 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
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/026—Relative localisation, e.g. using odometer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/06—Indicating or recording the setting of track apparatus, e.g. of points, of signals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/06—Indicating or recording the setting of track apparatus, e.g. of points, of signals
    • B61L25/08—Diagrammatic displays
    • 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 disclosure relates in general to computer implemented methods and more particularly to a method to produce an output file representing a map of a railway route which connects a departure device to an arrival device.
  • SCMT Train Speed Control System
  • SCMT Train Speed Control System
  • transponders Balises placed along the tracks, which allow the railway's technology premises to transmit to the train the details of what is ahead along the line, enabling the on-board computer to process these data and define the safety thresholds for traffic.
  • ERTMS European Rail Traffic Management System
  • a fundamental phase in the execution of any project is that of surveying the devices present along the railway lines of a railway network. These devices can ideally be divided into:
  • the set of signaling devices encloses all the information and logical functions linked to the signaling systems, which are fundamental for the safety functions of rail traffic. At least the following devices belong to this set:
  • the set of infrastructure elements gathers all the elements relating to the railway infrastructure and some main elements of the stations, useful for the analysis of the passenger flow. At least the following devices belong to this set:
  • the survey is a fundamental phase in the railway engineering process, in fact it allows to have all the input information about the existing infrastructure.
  • the most direct one for having a measurement plan among the devices that make up the infrastructure is the metric wheel, i.e. an instrument that, operated by an operator, allows, by walking, to easily measure the distance between two objects, being a method rather subject to systematic errors, it is good practice to perform several samplings in order to reduce the error.
  • This method is quite straightforward, as there is no need for post-processings, but it does not allow the accuracies that may be needed by the requirements of some signaling systems to be achieved.
  • GPS-based instrumentation i.e. an instrument that, when placed on an object, can define its position in a known reference system through triangulation between satellites and known fixed points within the territory.
  • This system is very accurate but requires further processing on the beaten points and has the major disadvantage that it cannot be used indoors (buildings, tunnels, etc.).
  • the total station i.e. an instrument which, unlike traditional theodolites, is able to calculate, in a computerised manner, the distances between the points taken and the points beaten, including differences in elevation measurements (an element on which the survey by GPS is not very precise).
  • the next step includes processing and analysing the latter in order to have an input format that is as essential and useful as possible for the actual design.
  • the design process can begin.
  • the engineering team will carry out the modifications requested by the client based on the signaling rules and regulations; therefore, for the current railway network to be updated, new devices will be inserted along the line at regulated distances, for which purpose measurement tables will be used to understand at which precise geographical point these new devices will be placed.
  • the survey data are processed to generate a CAD planimetry in order to have a complete visual picture of the line on which the works are to be carried out.
  • the choice to use a CAD format means that it is possible to conveniently take advantage of the integrated tools to perform calculations and measurements on the distances.
  • each record comprises:
  • such a database may be realised by processing at least one CAD, or Excel or text file, containing at least position and elevation information of the signaling devices and infrastructure devices of the railway network, to identify at least one signaling device or at least one infrastructure device described therein and the respective position and elevation information, then filling in at least one respective record of a database for each registered signaling device or infrastructure device, the record containing at least a name field containing a name of the registered device, a position field containing respective GPS position information, and an elevation field containing respective elevation information.
  • the methods of the present disclosure may be implemented via software executed by computer.
  • Each output file representing a map of a railway line may be printed in graphic or text form on a sheet of paper or other printable medium in order to produce a paper map of the desired railway line.
  • the output file may be displayed on a screen in graphical or text form, e.g. on a PC display or on a tablet, in order to produce a map of the railway line in paperless mode.
  • a database is created containing all the survey data, keeping them updated and allowing a quick and targeted use for design purpose.
  • the workflow is modified by inserting an automatic transcoding phase of the data that will be made viewable in the platform, thus disconnecting the process from any use of CAD software, as schematically shown in figure 1 .
  • transcoding in figure 1 is substantially a computer implemented method to create a record database, each containing position and elevation information of signaling devices and infrastructure devices of a railway network.
  • FIG. 2 A more detailed flow chart explaining how the database is created is shown in figure 2 .
  • a respective record is filled in for each identified signaling device or infrastructure device, wherein the record contains at least a name field containing a name of the identified device, a position field containing respective GPS position information of the identified device, and optionally an elevation field containing the respective elevation information of the identified device.
  • the identifier datum is a progressive number that identifies a position of the database record in the ordered succession between the departure record and the arrival record.
  • a first pointer is added to the respective record of the first signaling device or infrastructure device, and a second pointer is added to the respective record of the second signaling device or infrastructure device.
  • the database to be created and which will be saved on a storage medium so that it can be consulted and updated, will contain records that will identify the registered signaling or infrastructure devices with all the properties that characterise them, and it will also identify the records of the nearest device which precedes or follows along the direction of travel of a railway line passing through them.
  • bridges, traveler buildings, platforms and tunnels are devices that are detected through several measurements, precisely defining the start and end on the length of the track, while all the other devices listed are detected through a punctual measurement. This is because the view from the train side is even more important than designing from a "global" view of the system/track, i.e. having a distinct succession order of devices that the train will encounter as it proceeds along its itinerary.
  • a database of a railway network structured as follows is therefore available, in which each record of the database comprises at least, as shown in figure 4 :
  • each record in the database has at least one given identifier of a first record, relating to a first signaling device or infrastructure device which follows the registered signaling device or infrastructure device along the direction of travel of a railway line, and of a second record relating to a second signaling device or infrastructure device which precedes the registered signaling device or infrastructure device along the direction of travel of the railway line.
  • each record in the database comprises:
  • the dedicated software will be organised in four functional sections interfaced with each other as shown in figure 3 .
  • the entire platform revolves around the database, which is populated first of all by the transcoding operation of the survey data, and which is then managed and displayed through the appropriate user interfaces.
  • the database is processed to identify:
  • a first intermediate record of the ordered succession of intermediate records is pointed to by the given identifier of the departure record, wherein the last intermediate record of the ordered succession of intermediate records is pointed to by the given identifier of the arrival record, and wherein every other intermediate record is pointed to by the given identifier of the intermediate record which precedes in the succession and by the given identifier of the intermediate record which follows in the succession.
  • a first intermediate record of the ordered succession of intermediate records is pointed to by a first pointer of the departure record, wherein a last intermediate record of the ordered succession of intermediate records is pointed to by a second pointer of the arrival record, and wherein every other intermediate record is pointed to by a first pointer of the intermediate record which precedes in the succession and is pointed to by the second pointer of the intermediate record which follows in the succession.
  • each signaling device or infrastructure device of the graph is represented together with its symbol, name and respective elevation information.
  • a graph is produced that can be displayed on the screen or printed in graphic or text form of the elevation values contained in the records of the output file which represents said map of the railway line.
  • each company in fact produces an output format according to its own technologies and needs, for example output in text, tabular, or CAD format. Consequently, the approach to be used changes depending on the format in which the data to be used were represented. In fact, each format is unrelated to the other one and does not provide for the possibility of updates following new survey campaigns.
  • database records are generated starting from at least one CAD, or Excel or text file containing position and elevation information of the signaling and infrastructure devices of a railway network.
  • the above-mentioned files are processed to identify the signaling or infrastructure devices described therein and the respective geographic position and elevation information; then the respective records of a database for each signaling device or infrastructure device identified are filled in in the manner indicated above.
  • the procedure used for reading input data from CAD, Excel or text documents is based on the identification of the coordinate fields, expressed in a standard format.
  • the points represented will then be reconnected where possible automatically, otherwise a wizard will allow an operator to establish the joining rules.
  • the software will allow the automatic conversion between a standard and another format so that the operator is completely relieved of this burden for the delivery of the final paper.
  • a relational database was chosen that would allow devices with common attributes to be linked together, by using a SQL (Structured Query Language) type language to interface with the database structure allowing the operations of data creation, insertion and query to be carried out accurately and quickly.
  • SQL Structured Query Language
  • the database is an integral part of the dedicated software, it can be exploited by the software to generate specific outputs in order to be interoperable with other proprietary applications.
  • both the topographical features i.e. geolocation, elevation and actual position within the survey
  • the schematic features, typology of the various devices, physical connections and of the railway line, belonging track are processed and stored.
  • the sequence of gradient changes (variations in thousandths of the elevation profile) is very important for the configuration of the system settings.
  • the input datum from a survey has a structure dependent on who produced it, so unless tools were provided to assist the designer, the approach and use method had to be completely manual, the operator had to find the points of interest within the data structure and manually reconnect the line of the devices in order to obtain the measurement concerned. This procedure obviously introduced a human error factor that should not have been considered within the accuracies required by the design.
  • the dedicated software that implements the method of this disclosure provides for the management of any type of input data, by extrapolating the useful detail of the information and preparing the data for archiving in the database. As it is an automated procedure, it frees the user from the recognition of useful content for design purposes, allowing not only a saving in time factor, but also the reduction of error induced by the human control.
  • the display of the data as a whole was limited to the manual creation of a planimetry in CAD format, which, although it was easy to consult and allowed the representation of large parts of the railway line, both its generation and possible revisions as a result of new surveys had to be processed manually a user.
  • the operator started from the beaten points of the tracks, the operator had to use a vast library of blocks (graphic representation of the devices) and insert them at the respective points surveyed, in order to show the arrangement of the devices along the line at a glance, without having to go through a 1-to-1 search between the nomenclature on the planimetry and the table of the devices surveyed.
  • the database data are automatically interpreted and converted into a weighted undirected graph, i.e. a configuration formed by a set of nodes (the devices we have chosen as input) and a set of arcs connecting them (relationships between the devices chosen based on the type of functionality chosen).
  • the display software makes it possible to reconstruct, using only the data present in the database, the complete geographical survey, complete with devices and connections, displayed in a graph, allowing an easy navigation and query of the information.
  • the data are organised and connected according to precise criteria, so that, once two nodes have been chosen, all the connections within them can be extrapolated, the software will construct the train lines within the graph and will obtain the list of the devices crossed, the distances between them, and, since the whole system is georeferenced, also the variations in measurement of the profile. All devices are displayed with their symbol, allowing to distinguish the type of device and, through the list of the various types of devices, to filter the graph, by displaying only what one is interested in.
  • the node list reflects the sequence of the devices that will be encountered by the train while crossing the line, each of which is accompanied by the type and distance from the previous device in metres.
  • the display software also allows the export of data stored in the database both in the XLS and in the XML format, compatible with both the project and European specifications.
  • the dedicated software according to this disclosure also offers the possibility to modify and manage the data in the database, in fact it is sometimes required to modify the planimetry by the engineering following developments and analyses while designing. This intervention is not always linked to a further survey of the railway trail but it must be punctual in adding, removing or modifying the coding and position of some devices. In fact, through an interface that accepts user inputs, the planimetry is made manageable as if it were a normal design table.
  • Each progressive line number of the XML code is a datum that identifies the position of the identified device in an ordered succession of devices identified along a given railway line, therefore it allows to locate both the immediately preceding device and the immediately following device along the railway line.
  • Each device is represented as an XML element with all its typical characteristics of that device.
  • the code of the previous and next track circuit (railway device used to verify track occupation) is stored, in a manner consistent with the direction of travel of the joint i.e. XI -> 55, in addition to the distance from the previous device.
  • switches it is stored in which way they are crossed, i.e. in straight or diverging track.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Instructional Devices (AREA)
EP21204920.9A 2020-10-30 2021-10-27 Procédé mis en oeuvre par ordinateur pour produire une carte d'une ligne de chemin de fer et programme informatique associé Pending EP3992056A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102020000025936A IT202000025936A1 (it) 2020-10-30 2020-10-30 Metodo implementato tramite computer per produrre una mappa di un percorso ferroviario e relativo programma per elaboratore

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EP3992056A1 true EP3992056A1 (fr) 2022-05-04

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EP21204920.9A Pending EP3992056A1 (fr) 2020-10-30 2021-10-27 Procédé mis en oeuvre par ordinateur pour produire une carte d'une ligne de chemin de fer et programme informatique associé

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EP (1) EP3992056A1 (fr)
IT (1) IT202000025936A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009006085A1 (de) * 2009-01-26 2010-07-29 Voith Patent Gmbh Verfahren zur Erfassung von Streckendaten
US20190197923A1 (en) * 2017-12-21 2019-06-27 Laird Technologies, Inc. Computerized railroad track mapping methods and systems
CN111382483A (zh) * 2018-12-29 2020-07-07 比亚迪股份有限公司 站场图工程化方法、装置和设备
CN111824216A (zh) * 2020-06-19 2020-10-27 北京交通大学 一种列车开行方案评估方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009006085A1 (de) * 2009-01-26 2010-07-29 Voith Patent Gmbh Verfahren zur Erfassung von Streckendaten
US20190197923A1 (en) * 2017-12-21 2019-06-27 Laird Technologies, Inc. Computerized railroad track mapping methods and systems
CN111382483A (zh) * 2018-12-29 2020-07-07 比亚迪股份有限公司 站场图工程化方法、装置和设备
CN111824216A (zh) * 2020-06-19 2020-10-27 北京交通大学 一种列车开行方案评估方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BITTERBERG U: "WISSENBASIERTE FAHRZEUGSTEUERUNGEN - DATENBASIS UND POTENZIELLE ANWENDUNGEN//KNOWLEDGE-BASED TRAIN CONTROL SYSTEMS - DATA BASIS AND POTENTIAL APPLICATIONS", ZEVRAIL - GLASERS ANNALEN, GEORG SIEMENS VERLAG, BERLIN, DE, vol. 128, no. 6/07, 1 June 2004 (2004-06-01), pages 240 - 246, 248, XP001196510, ISSN: 1618-8330 *
VOSS G ET AL: "FAHRZEUGORTUNG MIT DEM GLOBAL POSITIONING SYSTEM FUER DEN ELEKTRONISCHEN BUCHFAHRPLAN UND LA//GPS-BASED VEHICLE LOCATION FOR EBULA (ELECTRONIC TIMETABLE BOOK AND LIST OF SECTIONS WITH TEMPORARY SPEED RESTRICTIONS)//LOCALISATION DES VEHICULES PAR L'INTERM", ZE VRAIL - GLASERS ANNALEN: ZEITSCHRIFT FUER DAS GESAMTE SYSTEM BAHN, GEORG SIEMENS VERLAG GMBH & CO. KG, DE, vol. 125, no. 11, 1 November 2001 (2001-11-01), pages 502 - 506, XP001107803, ISSN: 0941-0589 *

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