EP0657337A1 - Méthode de fixation de la zone de balayage de dispositifs de mesure active par véhicule et dispositif de positionnement et de réglage de dispositifs de mesure pour voies ferrées rélatif à des détecteurs de roues - Google Patents

Méthode de fixation de la zone de balayage de dispositifs de mesure active par véhicule et dispositif de positionnement et de réglage de dispositifs de mesure pour voies ferrées rélatif à des détecteurs de roues Download PDF

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Publication number
EP0657337A1
EP0657337A1 EP94890203A EP94890203A EP0657337A1 EP 0657337 A1 EP0657337 A1 EP 0657337A1 EP 94890203 A EP94890203 A EP 94890203A EP 94890203 A EP94890203 A EP 94890203A EP 0657337 A1 EP0657337 A1 EP 0657337A1
Authority
EP
European Patent Office
Prior art keywords
signal
measuring devices
wheel
signals
voltage
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.)
Granted
Application number
EP94890203A
Other languages
German (de)
English (en)
Other versions
EP0657337B1 (fr
Inventor
Dipl. Ing. Wolfgang Nayer
Ing. Josef Frauscher
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.)
Voestalpine Railway Systems GmbH
Original Assignee
Voestalpine VAE 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 Voestalpine VAE GmbH filed Critical Voestalpine VAE GmbH
Publication of EP0657337A1 publication Critical patent/EP0657337A1/fr
Application granted granted Critical
Publication of EP0657337B1 publication Critical patent/EP0657337B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B61L1/02—Electric devices associated with track, e.g. rail contacts
    • B61L1/08—Electric devices associated with track, e.g. rail contacts magnetically actuated; electrostatically actuated
    • 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
    • B61L1/02—Electric devices associated with track, e.g. rail contacts
    • B61L1/10—Electric devices associated with track, e.g. rail contacts actuated by electromagnetic radiation; actuated by particle radiation
    • 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
    • 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

Definitions

  • the invention relates to a method for determining the scanning range of vehicle-operated measuring devices, such as of hot runner location devices, in which a wheel sensor has a transmitter and two receivers arranged on both sides of the transmitter, the signals of both receivers being compared with one another and a measurement being carried out as a function of the result of the signal comparison, and a device for setting and adjusting measuring devices on track paths relative to wheel sensors with a base plate, on which wheel sensors and measuring devices can be fixed at a geometrically defined distance from one another, the wheel sensors each having a transmitter coil and two assigned receiver coils.
  • vehicle-operated measuring devices such as of hot runner location devices
  • wheel sensors have already become known, which are characterized in that they can only be arranged on one side of the rail head of a rail.
  • the wheel sensors that can be removed from this EP-A 340 660 consist from a coil system that can be mounted, for example, on the inside of a rail of the track, with an AC-powered transmitter coil and two assigned receiver coils.
  • the transmitter coils induce an induction voltage in the receiver coils. If a receiver coil is arranged in front of and behind the transmitter coil as seen in the longitudinal direction of the rail, it can be concluded, for example, that if the receiver coils are identical and are arranged at the same distance from the transmitter coil and an identical voltage is induced in both receiver coils a wheel is running in the middle above the sensor.
  • the invention now aims to provide a method of the type mentioned at the outset, with which, given a given geometrical arrangement of the individual components for vehicle-operated measuring devices, such as hot runner locating devices in particular, even after the completion of all mechanical adjustment work, fine adjustment is still possible without this Increasing the structural outlay of the devices for fixing the parts of such a vehicle-operated measuring device results.
  • a simple mechanical fixing of the parts should make it possible to achieve the desired length and still make it possible to adjust them later.
  • the method according to the invention essentially consists in that an adjustable, constant signal is electrically added or subtracted to or from at least one of the signals of the receivers of a wheel sensor, and that the measurement is dependent on the evaluation of the comparison of the signals thus obtained the wheel sensor receiver is made. Because at least one of the signals from the receivers of a wheel sensor is electrically added or subtracted from an adjustable constant signal, the procedure outlined in EP-A 340 660 for determining a signal intersection can be changed so that this intersection can be shifted.
  • the shifting of the point of intersection by the electrical addition or subtraction of a DC component has the consequence that, for example, a gate opening or gate closing time can be shifted accordingly.
  • a gate opening or gate closing time can be shifted accordingly.
  • the device according to the invention for setting and adjusting measuring devices on track paths relative to wheel sensors with a base plate, on which wheel sensors and measuring devices can be fixed at a geometrically defined distance from one another, the wheel sensors each having a transmitter coil and two assigned receiver coils is essentially characterized in that at least a voltage signal is fed to a receiver coil of a computing circuit, and that the output signal of the computing circuit and the voltage signal of the second receiver coil are fed to a comparator, the output signal of which is connected to the measuring device.
  • a modified signal of a receiver coil is formed by the arithmetic circuit, and when the comparison is made with the induced voltage in the second receiver coil, the shift in the parameter relevant for the evaluation, such as the intersection of the two signal curves with a given correlation or identity of the two signals, is achieved .
  • a simple arithmetic circuit is sufficient for the device according to the invention, the design being such that the arithmetic circuit is designed as an addition circuit and adds or subtracts an adjustable voltage value to the input signal and / or is designed as a multiplication or quotient circuit, and with a adjustable factor multiplied or divided by this.
  • An adjustable voltage signal can be achieved in a simple manner by conventional circuits.
  • Such a voltage signal can usually be generated by a voltage drop across a defined resistor, the adjustability being possible, for example, using simple potentiometers.
  • the fact that the desired voltage can be varied in a simple and conventional manner and the respectively selected voltage can subsequently be kept constant enables a particularly simple subsequent adjustment, which has no objection to the construction effort involved in determining the equipment of the measuring device.
  • the device can be designed such that the computing circuit contains an operational amplifier, to the inputs of which the signal of a receiver coil and a voltage source with an adjustable voltage are connected.
  • FIG. 1 shows a schematic representation of the arrangement of the vehicle-operated measuring device seen in the longitudinal direction of the rail, the rail being shown in section
  • FIG. 2 shows a plan view of the measuring device according to FIG. 1
  • FIG. 3 shows a detailed view of the wheel sensors from the inside of the track seen here
  • Fig. 4 shows the signal curve as it can be obtained with the wheel sensors according to Fig. 3 without modification of the signals
  • Fig. 5 shows the signal curve after electrical fine adjustment or. Modification of the signals as originally obtained and shown in Fig. 4.
  • Fig. 1 denotes a rail, the rail base of which is connected to a mounting plate 2.
  • a wheel sensor 3 is arranged on the inside of the track. The construction of the wheel sensor is selected such that it is arranged on one side of the web of the rail 1, so that a hot runner locating device 4 can be arranged on the other side of the web.
  • a wheel 5 that rolls over the wheel sensor 3 can be seen schematically, the axle journal 6 of which reaches the scanning area 7 of the hot runner locating system 4.
  • the bearing temperature of the bearing 8 can also be scanned over a further scanning range.
  • a combination of two wheel sensors 3 is arranged on one side of the rail head 9, whereas the hot runner locating system 4 is fixed on the outside in a spatially exactly adjusted manner on the same mounting plate as the wheel sensors 3 on the outside in a plan view are.
  • the available space is limited by neighboring thresholds 10.
  • a wheel sensor comprises a central transmitter coil 11, receiver coils 12 and 13 being arranged on both sides in the longitudinal direction of the rail.
  • the coil axes are directed towards the rail foot, which is therefore located as a damping metal surface in the effective area under the receiver coils 12 and 13. With the correct arrangement, the axes run past the rail head and are directed against the possible passage area of the wheel rim of this wheel 5. As long as there is no wheel 5 in the effective range, the greatest possible output signals occur in both receiver coils 12 and 13.
  • a fine adjustment of this precisely defined spatial reference point, as is given by the intersection 14 of the waveform curves of the induction voltages in the coils 12 and 13, can now be achieved by modifying the signal of one of the two receiver coils.
  • a predetermined, adjustable voltage value can simply be added to the signal of one of the two receiver coils.
  • Such a DC component is added to the signal of the receiver coil 13 in the illustration according to FIG. 5, as a result of which the signal increases overall by the amount ⁇ u after the constant DC component has been added.
  • This voltage difference can vary from one simple potentiometer can be removed and can be given, for example, to an input of an operational amplifier, the second input of which provides the original signal of the coil 13.
  • This time shift ⁇ t which is achieved by adding a constant signal to the signal of one of the receiver coils, allows a new switching threshold to be set exactly and ⁇ t depending on ⁇ u, i.e. Adjust and adjust within wide limits depending on the added voltage.
  • a constant component .DELTA.u By adding such a constant component .DELTA.u to signals from receiver coils of a wheel sensor, either the gate opening time in the event of a shift in the signals of the receiver coil 12 or the gate closing time in the case of addition of a signal to the signal curve of the receiver coil 13 can be shifted accordingly. If both times in a first wheel sensor (3a) and a second wheel sensor (3b) are shifted at the same time, the entire door width can be regulated and an exact temporal and spatial adjustment for optimizing the measuring time can be achieved only by changing electrical variables.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Traffic Control Systems (AREA)
EP94890203A 1993-12-10 1994-12-06 Méthode de fixation de la zone de balayage de dispositifs de mesure activés par véhicule et dispositif de positionnement et de réglage de dispositifs de mesure pour voies ferrées relatif à des détecteurs de roues Expired - Lifetime EP0657337B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2499/93 1993-12-10
AT0249993A AT400429B (de) 1993-12-10 1993-12-10 Verfahren zum festlegen des abtastbereiches von fahrzeugbetätigten messeinrichtungen sowie einrichtung zum einstellen und justieren von messeinrichtungen an gleiswegen relativ zu radsensoren

Publications (2)

Publication Number Publication Date
EP0657337A1 true EP0657337A1 (fr) 1995-06-14
EP0657337B1 EP0657337B1 (fr) 1998-03-25

Family

ID=3535374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94890203A Expired - Lifetime EP0657337B1 (fr) 1993-12-10 1994-12-06 Méthode de fixation de la zone de balayage de dispositifs de mesure activés par véhicule et dispositif de positionnement et de réglage de dispositifs de mesure pour voies ferrées relatif à des détecteurs de roues

Country Status (8)

Country Link
US (1) US5483816A (fr)
EP (1) EP0657337B1 (fr)
AT (1) AT400429B (fr)
CA (1) CA2137583A1 (fr)
DE (1) DE59405523D1 (fr)
DK (1) DK0657337T3 (fr)
ES (1) ES2115197T3 (fr)
FI (1) FI945794A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745436A1 (de) * 1997-10-15 1999-04-22 Cit Alcatel Schienenkontakt für eine Achszähleinrichtung
WO2009141251A1 (fr) * 2008-05-23 2009-11-26 Siemens Aktiengesellschaft Dispositif de détection de l’état occupé ou libre d’une section de voie

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6663053B1 (en) * 2002-08-30 2003-12-16 Introl Design, Inc. Sensor for railcar wheels
CN100410660C (zh) * 2003-12-20 2008-08-13 孙劲楼 双排梳齿形电极开合线圈轮对磁粉探伤机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203816B (de) * 1960-07-22 1965-10-28 Deutsche Bundesbahn Magnetisch gesteuerte Schienenkontakt-einrichtung
US3697745A (en) * 1970-05-18 1972-10-10 Gen Signal Corp Flux nulled wheel detector
DE3236275A1 (de) * 1981-10-05 1983-04-21 Servo Corporation of America, 11802 Hicksville, N.Y. Eisenbahn-heisslaeufer-erkennungssystem
EP0340660A2 (fr) * 1988-05-03 1989-11-08 ING. JOSEF FRAUSCHER Hydraulik und Sensortechnik Dispositif sur voies ferrées pour engendrer des critères de présence pour roues roulant sur rails

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973430A (en) * 1957-03-25 1961-02-28 Servo Corp Of America Railroad-car wheel locator
US3016457A (en) * 1957-09-30 1962-01-09 Gen Railway Signal Co Detection means for improperly lubricated journals
US3721821A (en) * 1970-12-14 1973-03-20 Abex Corp Railway wheel sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203816B (de) * 1960-07-22 1965-10-28 Deutsche Bundesbahn Magnetisch gesteuerte Schienenkontakt-einrichtung
US3697745A (en) * 1970-05-18 1972-10-10 Gen Signal Corp Flux nulled wheel detector
DE3236275A1 (de) * 1981-10-05 1983-04-21 Servo Corporation of America, 11802 Hicksville, N.Y. Eisenbahn-heisslaeufer-erkennungssystem
EP0340660A2 (fr) * 1988-05-03 1989-11-08 ING. JOSEF FRAUSCHER Hydraulik und Sensortechnik Dispositif sur voies ferrées pour engendrer des critères de présence pour roues roulant sur rails

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745436A1 (de) * 1997-10-15 1999-04-22 Cit Alcatel Schienenkontakt für eine Achszähleinrichtung
WO2009141251A1 (fr) * 2008-05-23 2009-11-26 Siemens Aktiengesellschaft Dispositif de détection de l’état occupé ou libre d’une section de voie
US8469318B2 (en) 2008-05-23 2013-06-25 Siemens Aktiengesellschaft Device for the detection of the occupied or free state of a track section

Also Published As

Publication number Publication date
DK0657337T3 (da) 1999-01-04
ATA249993A (de) 1995-05-15
FI945794A0 (fi) 1994-12-09
DE59405523D1 (de) 1998-04-30
US5483816A (en) 1996-01-16
FI945794A (fi) 1995-06-11
AT400429B (de) 1995-12-27
CA2137583A1 (fr) 1995-06-11
ES2115197T3 (es) 1998-06-16
EP0657337B1 (fr) 1998-03-25

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