EP1279581A1 - Dispositif de mesure externe de la longueur d'un train - Google Patents

Dispositif de mesure externe de la longueur d'un train Download PDF

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Publication number
EP1279581A1
EP1279581A1 EP02090255A EP02090255A EP1279581A1 EP 1279581 A1 EP1279581 A1 EP 1279581A1 EP 02090255 A EP02090255 A EP 02090255A EP 02090255 A EP02090255 A EP 02090255A EP 1279581 A1 EP1279581 A1 EP 1279581A1
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EP
European Patent Office
Prior art keywords
speed
train
sensors
length
distance
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.)
Withdrawn
Application number
EP02090255A
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German (de)
English (en)
Inventor
Michael Kobus
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 AG
Original Assignee
Siemens AG
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
Priority claimed from DE10140052A external-priority patent/DE10140052C1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1279581A1 publication Critical patent/EP1279581A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/161—Devices for counting axles; Devices for counting vehicles characterised by the counting methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/14—Devices for indicating the passing of the end of the vehicle or train

Definitions

  • the invention relates to a device for external train length measurement according to the preamble of claim 1.
  • the train length measurement during the journey is required in particular for safety reasons. It must be ensured that a train network consisting of several carriages completely passes the respective track section. The uncoupling or demolition of one or more carriages must be recognized to avoid collisions with other trains.
  • the train length measurement may also be necessary for logistical and control purposes.
  • a method for train length measurement is known in which the partial lengths between the axles are determined and these partial lengths are added taking into account end overhangs at the ends.
  • a calibration measurement is carried out in order to determine the time period required to run through the distance determined by the two sensors. In this way, changes in speed during the measuring time are taken into account with a certain degree of accuracy. The remaining residual error causes a longer train length to be determined during acceleration, while a shorter length is determined when decelerating. This deviation from the real train length can lead to security problems depending on the task.
  • the track section concerned may be vacated prematurely.
  • the train length is too long in the event of a delay, this can lead to problems, for example, with the exact position specification of the train in train stations or with freight trains at loading and unloading ramps.
  • the invention is based, to largely avoid these disadvantages, d. H. to improve a method of the generic type with regard to the accuracy of the train length measurement at a non-constant speed during the measurement time.
  • the object is achieved with the features of claim 1.
  • the principle approach is based on taking into account only those axes that are absolutely necessary for the complete detection of the train movement. It must be ensured that there is always at least one axis within the measuring section, ie between the sensors.
  • a second, third or fourth axis for example, is therefore only relevant for measurement if it has passed the front sensor before the first axis passes the rear sensor, ie leaves the measuring section. Only the rear axle that is the last to enter the measurement section before leaving the measurement section is taken into account in the measurement. As in the exemplary embodiment shown in more detail below, this can be, for example, the fourth axis. This fourth axis begins with entering the measuring section to the new front axis etc.
  • the distance between the axes to be taken into account is equated with the measuring section.
  • the resulting overlap error between the measurement section and the center distances is the distance covered during the overlap time and is subtracted from the measurement section.
  • the speed will increase during the overlap time based on the axis to be measured.
  • the known method mentioned above works according to the radiation set, only time measurements being evaluated in relation to the known length of the measuring section. In contrast to the solution according to the invention, an explicit consideration of the speed is not provided. As a result, the calibration measurements necessary for the radiation set method are omitted in the solution according to the invention. Instead, the speed of a specific axis for the subtraction of the overlap distance from the measuring section is determined for each axis distance calculation.
  • a prerequisite for the application of the method is that the length of the measuring section, ie the distance between the sensors, corresponds at least to the maximum center distance of two adjacent axes of the train. This ensures that there is always at least one axis on the measuring path throughout the train's travel time.
  • This sensor spacing condition is basically given, for example, for the switch-off contacts of level crossings. Such contacts are usually at a distance of at least 30 m.
  • Axle counters, which limit track vacancy sections, can also be suitable as sensors.
  • the overhangs in front of the first axis and / or behind the last axis can, if necessary, be taken into account by additional devices attached to the Switzerlandspitze and at the end of the train, which address the sensors like real axes. However, it is also conceivable to take these overhang amounts from a list depending on the type of train, the wheelbase pattern or other criteria.
  • the remaining measurement error is much smaller than that of the known radiation set method.
  • an integrative one would have to be used for each partial length determination Speed value can be used.
  • the lower speed of the two axes to be taken into account must be used to calculate the overlap distance. If, depending on the task, it does not matter in which direction a residual error occurs, but this residual error should be as small as possible, an average speed of the relevant axes can be used to calculate the overlap distance.
  • a function can be integrated in the rail vehicle that prevents unnecessary accelerations or braking maneuvers during the determination of the train length or generates a signal for the driver in this regard.
  • Figure 1 shows a train Z, consisting of two carriages with a total of six wheel axles R1 to R6. These pass successively a first track-side sensor A at the start of a measurement section s and a second track-side sensor E at the end of the measurement section s. The sensors A and E register the travel times t1a to t6a or t1e to t6e through the corresponding wheel axles R1 to R6.
  • the last wheel axis entering the measuring section s is the fourth wheel axis R4 before leaving the measuring section s by the first wheel axis R1.
  • the associated times t1e and t4a are relatively close together. It follows from this that the distance between the wheel axles R1 and R4, ie a first partial length s1k, is only slightly smaller than the known length of the measuring section s.
  • either the speed v1 of the first ash R1 or the speed v4 of the fourth axis R4 is used as the speed value. If the condition that the determined train length should be greater than or equal to the real train length must be met, the lower of the two speeds v1 and v4 is used. This state of affairs is illustrated in somewhat different representation in FIG. 2, the determined train length le here being the sum of the partial lengths s2k + s3k + s4k.
  • the determined train length 1e results as a summation of the partial lengths s1k + s4k + s5k.
  • the partial lengths s4k and s5k are determined in an analogous manner to the pitch length s1k, with either the speed of the fourth wheel axis R4 or the fifth wheel axis R5 for determining the partial length s4k and either the speed of the fifth wheel axis R5 or the for determining the partial length s5k sixth wheel axle R6 can be used.
  • Figure 1 also illustrates the known procedure according to the ray set.
  • the partial lengths 11 to 15 are added between all adjacent wheel axles R1 to R6.
  • the underlying center distances essentially correspond to the conditions of the train assembly shown in FIG. 1.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
EP02090255A 2001-07-16 2002-07-15 Dispositif de mesure externe de la longueur d'un train Withdrawn EP1279581A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10136607 2001-07-16
DE10136607 2001-07-16
DE10140052 2001-08-16
DE10140052A DE10140052C1 (de) 2001-07-16 2001-08-16 Vorrichtung zur externen Zuglängenmessung

Publications (1)

Publication Number Publication Date
EP1279581A1 true EP1279581A1 (fr) 2003-01-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02090255A Withdrawn EP1279581A1 (fr) 2001-07-16 2002-07-15 Dispositif de mesure externe de la longueur d'un train

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EP (1) EP1279581A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE36268E (en) * 1988-03-15 1999-08-17 Boehringer Mannheim Corporation Method and apparatus for amperometric diagnostic analysis
CN102939233A (zh) * 2010-04-07 2013-02-20 西门子公司 用于确定多个联接的牵引机车车辆的列车长度的方法和设备
WO2020010962A1 (fr) * 2018-07-11 2020-01-16 同方威视技术股份有限公司 Procédé et système de détection d'empattement de train
ES2779951A1 (es) * 2019-02-18 2020-08-20 Univ Sevilla Sistema de medicion de composiciones ferroviarias y metodo asociado
GB2582936A (en) * 2019-04-09 2020-10-14 Siemens Mobility Ltd Sensor based trackside train measuring system
EP4186775A1 (fr) * 2021-11-26 2023-05-31 Siemens Mobility GmbH Procédé et dispositif de détection des propriétés d'un véhicule

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300429A1 (de) * 1983-01-07 1984-07-12 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur zuglaengenmessung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300429A1 (de) * 1983-01-07 1984-07-12 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur zuglaengenmessung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE36268E (en) * 1988-03-15 1999-08-17 Boehringer Mannheim Corporation Method and apparatus for amperometric diagnostic analysis
CN102939233A (zh) * 2010-04-07 2013-02-20 西门子公司 用于确定多个联接的牵引机车车辆的列车长度的方法和设备
CN102939233B (zh) * 2010-04-07 2015-06-24 西门子公司 用于确定多个联接的牵引机车车辆的列车长度的方法和设备
US9254854B2 (en) 2010-04-07 2016-02-09 Siemens Aktiengesellschaft Method and device for determining the train length of a plurality of coupled railway traction vehicles
WO2020010962A1 (fr) * 2018-07-11 2020-01-16 同方威视技术股份有限公司 Procédé et système de détection d'empattement de train
ES2779951A1 (es) * 2019-02-18 2020-08-20 Univ Sevilla Sistema de medicion de composiciones ferroviarias y metodo asociado
WO2020169861A1 (fr) * 2019-02-18 2020-08-27 Universidad De Sevilla Système de mesure de compositions ferroviaires et procédé associé
GB2582936A (en) * 2019-04-09 2020-10-14 Siemens Mobility Ltd Sensor based trackside train measuring system
EP4186775A1 (fr) * 2021-11-26 2023-05-31 Siemens Mobility GmbH Procédé et dispositif de détection des propriétés d'un véhicule
US11958515B2 (en) 2021-11-26 2024-04-16 Siemens Mobility GmbH Method and apparatus for identifying properties of a vehicle, computer program product and computer-readable medium for storing and/or providing the computer program product

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