EP2371665B1 - Surveillance d'état - Google Patents

Surveillance d'état Download PDF

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Publication number
EP2371665B1
EP2371665B1 EP11158565.9A EP11158565A EP2371665B1 EP 2371665 B1 EP2371665 B1 EP 2371665B1 EP 11158565 A EP11158565 A EP 11158565A EP 2371665 B1 EP2371665 B1 EP 2371665B1
Authority
EP
European Patent Office
Prior art keywords
condition monitoring
condition
parameter
data
waveform
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.)
Active
Application number
EP11158565.9A
Other languages
German (de)
English (en)
Other versions
EP2371665A2 (fr
EP2371665A3 (fr
Inventor
Simon Chadwick
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.)
Siemens Mobility Ltd
Original Assignee
Siemens Rail Automation Holdings Ltd
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 Rail Automation Holdings Ltd filed Critical Siemens Rail Automation Holdings Ltd
Priority to PL11158565T priority Critical patent/PL2371665T3/pl
Publication of EP2371665A2 publication Critical patent/EP2371665A2/fr
Publication of EP2371665A3 publication Critical patent/EP2371665A3/fr
Application granted granted Critical
Publication of EP2371665B1 publication Critical patent/EP2371665B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
    • B61L23/042—Track changes detection
    • B61L23/044—Broken rails
    • 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
    • B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
    • B61L27/53—Trackside diagnosis or maintenance, e.g. software upgrades for trackside elements or systems, e.g. trackside supervision of trackside control system conditions

Definitions

  • This invention relates to a condition monitoring system for a railway network, a railway network comprising such a condition monitoring system, and a method of condition monitoring of railway equipment.
  • this invention relates to arranging for local compression or consolidation in condition monitoring systems, in order to reduce the communications bandwidth required to transmit condition monitoring or measuring data to a central system.
  • condition management data There is an increasing desire to gather condition management data from across the various different systems deployed within railway systems, in order to construct condition management systems, with the ultimate aim of improving reliability and availability of the railway.
  • blocks 1, 1' are field locations, for example trackside locations
  • block 2 is an "office" location, i.e. a centralised location, which may be remote from each field location 1, 1', and which houses complex or expensive equipment, and which may oversee operations at a number of different field locations.
  • office location i.e. a centralised location
  • two field locations 1 and 1' are shown in Fig. 1 , such systems may include any practical number of such field locations.
  • remote equipment 3 such as a points machine, track circuit equipment, signal lamp equipment is controlled by a remote equipment controller 4, which in turn is coupled with an interlocking 5 at the office location 2.
  • condition monitoring unit 6 for example a points machine current monitoring unit, coupled with the remote equipment 3 and which sends data to a condition management facility 7 at the office location 2.
  • condition management facility 7 is operable to collate and process the condition monitoring data received from the condition monitoring unit 6, to assess functioning of the equipment 3 and to determine if there are any errors occurring or maintenance issues to be addressed.
  • the system 7 may instigate maintenance activities on the equipment, in order to pre-empt failures.
  • a problem with this system is the need for a relatively large communications bandwidth, to transmit the condition monitoring data, which as noted above may be large, from the remote field location 1 to the office location 2.
  • the ideal solution consolidates the data just enough so that it can be carried by the available bandwidth. As long as relatively minor consolidation is performed, then adequate monitoring may still be achieved.
  • condition monitoring system in accordance with a first aspect of the present invention there is provided a condition monitoring system according to claim 1.
  • the present invention is suitable for both for retrofitting to existing installations, or for implementation in new installations.
  • FIG. 2 schematically shows a condition monitoring system in accordance with an embodiment of the present invention. As far as possible, similar components to those of Fig. 1 are denoted with similar reference numerals.
  • blocks 1, 1' are field locations, for example trackside locations
  • block 2 is an "office" location, i.e. a centralised location, which may be remote from each field location 1, 1', and which houses complex or expensive equipment, and which may oversee operations at a number of different field locations.
  • remote equipment 3 such as a points machine, track circuit or signal lamp
  • a remote equipment controller 4 which in turn is coupled with an interlocking 5 at the office location 2.
  • condition monitoring unit 6 for example a points machine current monitoring unit, coupled with the remote equipment 3.
  • a data consolidation unit 8 for consolidating said data, the functioning of which will be described in more detail below.
  • Data consolidation unit 8 sends consolidated condition monitoring data to a condition management facility 7 at the office location 2.
  • Each additional field location 1' may have similar equipment and connectivity to office location 2.
  • field locations are shown as having separate, individual connections to office location 2, however it is alternatively possible to use bus communication instead, such that each field location communicates with office location 2 via a common communications bus.
  • condition management algorithms at the office location 2 are adapted to process the consolidated data, and raise any necessary alarms and warnings.
  • data consolidation unit 8 performs consolidation of the condition monitoring data received from condition monitoring unit 6, to produce a number of discrete values representative of the waveform, such that the original waveform could be at least partially reconstructed from those discrete values.
  • Fig. 3 schematically shows a waveform representing the variation of a parameter ("A") over time (“t") during a discrete event.
  • parameters may comprise the current drawn by points motors during movement of the points, or the current / voltage measured within a particular track circuit during passage by a train.
  • the waveform shown is exemplary only, and generally the waveform will be dependent upon the parameter in question.
  • the waveform can, for example, be characterised by the following values:
  • processing means which may be located within condition monitoring unit 6, is set to identify the start and conclusion of the event by analysing the sensor data directly, e.g. by detecting a statistically significant change in the sensed value of the parameter, and correlating this to either the start or conclusion of an event.
  • the event may be detected by other means, for example point movement may be correlated with sensors mounted on the points to directly determine movement, or by synchronising the event duration with the application of current to the points motors.
  • condition monitoring unit 6 which analyses the incoming data, and consolidates it to produce as many representative values as required, such as those values set out above.
  • the consolidated data are then transmitted to the condition management facility 7 at the office location 2. This requires less bandwidth than transmission of original, unconsolidated data. Since the data is consolidated rather than compressed, no additional equipment / functionality is required at office location 2, although the algorithms employed by office location 2 must be adapted to process the consolidated data.
  • the consolidated data does not contain all the information of the original data obtained from the sensors provided at remote equipment 3, by suitable selection of the consolidation technique employed, sufficient information may be received by condition management facility 7 to enable adequate monitoring, fault detection / diagnosis and control of the remote equipment 3. Furthermore, in the case where the inventive methodology is retrofitted to an existing installation, the transmission may still be enabled over the existing communications system.
  • FIG. 2 shows data consolidation unit 8 being a separate component to condition monitoring unit 6.
  • consolidation means e.g. circuitry
  • each data consolidation means may be retro-fitted to existing condition monitoring units 6 / 6'.
  • the controlling software for condition monitoring unit 6 may be adapted to include data consolidation capabilities.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Selective Calling Equipment (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Claims (11)

  1. Système de surveillance d'état adapté à un réseau ferroviaire comprenant :
    un capteur (6) servant à produire des données de surveillance d'état relatives au fonctionnement d'un équipement ferroviaire, étant entendu que les données décrivent une forme d'onde d'un paramètre ;
    un moyen d'agrégation (8) servant à traiter les données produites par le capteur en vue de produire un jeu de données agrégées qui consiste en une pluralité de valeurs discrètes représentatives de la forme d'onde du paramètre, et
    un moyen de sortie servant à sortir le jeu de données agrégées, étant entendu que le capteur (6), le moyen d'agrégation (8) et le moyen de sortie sont situés sur un emplacement en bord de voie (1),
    caractérisé en ce qu'il comprend par ailleurs un moyen de traitement réglé en vue d'identifier le début et la conclusion de la forme d'onde en analysant les données de surveillance d'état.
  2. Système de surveillance d'état selon la revendication 1, comprenant par ailleurs une installation de gestion d'état (7) servant à traiter le jeu de données agrégées, et un moyen de transmission servant à transmettre à l'installation de gestion d'état (7) le jeu de données agrégées sorti.
  3. Système de surveillance d'état selon la revendication 2, dans lequel l'installation de gestion d'état (7) est située sur un emplacement distant de l'emplacement en bord de voie (1).
  4. Système de surveillance d'état selon l'une quelconque des revendications précédentes, dans lequel les valeurs discrètes sont sélectionnées dans le groupe comprenant : la valeur moyenne du paramètre sur la durée d'un événement discret, la durée dudit événement discret, la valeur maximale du paramètre pendant ledit événement discret, la valeur du paramètre après un intervalle de temps spécifique à partir du début dudit événement discret et la valeur moyenne du paramètre pendant un laps de temps spécifique.
  5. Système de surveillance d'état selon l'une quelconque des revendications précédentes, servant à surveiller l'état des aiguilles de voies ferrées.
  6. Système de surveillance d'état selon l'une quelconque des revendications 1 à 5, servant à surveiller des circuits de voies ferrées.
  7. Réseau ferroviaire comprenant le système de surveillance d'état selon l'une quelconque des revendications précédentes.
  8. Procédé de surveillance de l'état d'un équipement ferroviaire, comprenant les étapes consistant :
    a) à faire produire, par un capteur (6), des données de surveillance d'état relatives au fonctionnement de l'équipement, étant entendu que les données décrivent une forme d'onde d'un paramètre ;
    b) à faire traiter, par un moyen d'agrégation (8), les données produites sur la surveillance d'état en vue de produire un jeu de données agrégées qui comprend une pluralité de valeurs discrètes représentatives de la forme d'onde du paramètre, et
    c) à faire sortir, par le moyen de sortie, le jeu de données agrégées,
    étant entendu que le capteur (6), le moyen d'agrégation (8) et le moyen de sortie sont situés sur un emplacement en bord de voie (1),
    le procédé étant caractérisé en ce qu'il identifie par ailleurs le début et la conclusion de la forme d'onde en analysant les données de surveillance d'état avec le moyen de traitement.
  9. Procédé selon la revendication 8, dans lequel les valeurs discrètes sont sélectionnées dans le groupe comprenant : la valeur moyenne du paramètre sur la durée d'un événement discret, la durée dudit événement discret, la valeur maximale du paramètre pendant ledit événement discret, la valeur du paramètre après un intervalle de temps spécifique à partir du début dudit événement discret et la valeur moyenne du paramètre pendant un laps de temps spécifique.
  10. Procédé selon l'une quelconque des revendications 8 à 9, servant à surveiller l'état des aiguilles de voies ferrées.
  11. Procédé selon l'une quelconque des revendications 8 à 9, servant à surveiller des circuits de voies ferrées.
EP11158565.9A 2010-03-17 2011-03-16 Surveillance d'état Active EP2371665B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11158565T PL2371665T3 (pl) 2010-03-17 2011-03-16 Monitorowanie stanu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1004421.2A GB201004421D0 (en) 2010-03-17 2010-03-17 Condition monitoring

Publications (3)

Publication Number Publication Date
EP2371665A2 EP2371665A2 (fr) 2011-10-05
EP2371665A3 EP2371665A3 (fr) 2012-08-22
EP2371665B1 true EP2371665B1 (fr) 2017-12-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11158565.9A Active EP2371665B1 (fr) 2010-03-17 2011-03-16 Surveillance d'état

Country Status (4)

Country Link
EP (1) EP2371665B1 (fr)
ES (1) ES2662061T3 (fr)
GB (1) GB201004421D0 (fr)
PL (1) PL2371665T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2559614B (en) * 2017-02-13 2019-06-12 Hitachi Rail Europe Ltd Communication of train on-board condition monitoring data
GB2581390B (en) * 2019-02-15 2021-03-03 Thales Holdings Uk Plc Diagnostic system and a method of diagnosing faults

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5743495A (en) * 1997-02-12 1998-04-28 General Electric Company System for detecting broken rails and flat wheels in the presence of trains
US7502670B2 (en) * 2004-07-26 2009-03-10 Salient Systems, Inc. System and method for determining rail safety limits
US7823841B2 (en) * 2007-06-01 2010-11-02 General Electric Company System and method for broken rail and train detection

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HOUGHTON MIFFLIN COMPANY: "consolidated", 31 December 2009 (2009-12-31), Retrieved from the Internet <URL:http://www.thefreedictionary.com/p/consolidated> [retrieved on 20130912] *

Also Published As

Publication number Publication date
EP2371665A2 (fr) 2011-10-05
EP2371665A3 (fr) 2012-08-22
GB201004421D0 (en) 2010-05-05
ES2662061T3 (es) 2018-04-05
PL2371665T3 (pl) 2018-05-30

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