EP0918009A2 - Contact placé sur la voie pour compteur d'essieux - Google Patents

Contact placé sur la voie pour compteur d'essieux Download PDF

Info

Publication number: EP0918009A2
Authority: EP; European Patent Office
Prior art keywords: rail contact; rail; voltage; field geometry; transmitter
Prior art date: 1997-10-15
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

EP98440184A

Other languages

German (de)

English (en)

Other versions

EP0918009B1 (fr

EP0918009A3 (fr

Inventor

Marc Kipping

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.)

Alcatel Lucent SAS

Nokia Inc

Original Assignee

Alcatel SA

Nokia Inc

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.)

1997-10-15

Filing date

1998-08-28

Publication date

1999-05-26

1998-08-28 Application filed by Alcatel SA, Nokia Inc filed Critical Alcatel SA

1999-05-26 Publication of EP0918009A2 publication Critical patent/EP0918009A2/fr

2001-09-26 Publication of EP0918009A3 publication Critical patent/EP0918009A3/fr

2004-07-14 Application granted granted Critical

2004-07-14 Publication of EP0918009B1 publication Critical patent/EP0918009B1/fr

2018-08-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- 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
- B61L1/163—Detection devices
- B61L1/165—Electrical
- 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
- B61L1/167—Circuit details
- 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
- B61L1/169—Diagnosis

Definitions

the invention relates to a rail contact for an axle counting device the preamble of claim 1.
Axle counting devices are mainly related to rail transport with track vacancy detection equipment, at level crossing protection and used for checking the integrity of trains.
An axle counter usually comprises several metering points and one usually in a signal box housed axle counter evaluation device, which from the metering points transmitted counting pulses are evaluated.
Each point of delivery in turn consists of one or two rail contacts and one in a separate housing housed evaluation circuit.
Each rail contact has a transmitting and a receiving coil, which is usually are arranged on both sides of a railroad track.
the transmitter coil generates an alternating electromagnetic field, which is generated by the receiving coil Will be received. If a wheel of a railway vehicle enters the Area of the alternating field occurs, this leads to a weakening of the Alternating field, whereby the signal received by the receiver coil falls off. If the signal amplitude is an appropriately set threshold falls below, this is evaluated by the evaluation circuit as a wheel passage.
Shape and level of the signal received by the receiving coil are subject diverse time-dependent influences. These include approximately the size of the in the rail current, the temperature of the transmission and Reception coil, mechanical misalignments and signs of wear on the railroad track. In the worst case, these influences can do so cause the metering point to detect a wheel passage, although one has not taken place. The reverse case is also possible, i. H. a Wheel passage is not recognized by the point of delivery.
the common rail contacts have in common that (partial) destruction of the rail contact not or not reliably recognized by the metering point becomes. Such destruction can occur, for example come that a train passing over it or a construction vehicle the The transmitter coil tears off the rail. It can then happen that the Point of delivery does not record a passing train without the error for the axle counting evaluation device would be recognizable in the signal box. This can be too cause serious danger to rail traffic, for example because a track occupancy message is omitted.
Fig. 1 shows a schematic representation of a rail contact SK according to the invention .
the rail contact SK comprises a reception coil ES on one side of a rail SCH and two transmission coils SS1 and SS2 on the side of the rail SCH opposite the reception coil ES.
the two transmission coils SS1 and SS2 can also be located on the same side of the rail SCH as the reception coil ES and also do not necessarily have to be arranged with respect to one another as shown in FIG. 1. It is only necessary to ensure that the two alternating fields emitted by the transmission coils SS1 and SS2 overlap at least in the area of the reception coil ES.
1 also shows schematically the field geometry FG1 of the sum field, which results from the superimposition of the two alternating fields emitted by the transmitter coils SS1 and SS2. The exact shape of the field geometry is not important for the invention.
FIG. 1 also shows an AC voltage source WSQ and an adjustable one Voltage divider ST.
the voltage divider ST two transmitter coils SS1 and SS2 with different AC voltages be charged.
the field geometry can thus be influence the sum field resulting from the overlay.
Fig. 1 is a changed field geometry by a broken line FG2 indicated.
the Circuit must at least ensure that at least one of the two Transmitter applied AC voltage within a certain Range is variable in its amplitude. It is conceivable, for example, that there is an unchangeable AC voltage at a transmitter coil and the other transmitter coil with an electronically controllable AC voltage source connected is. Which of the many options you ultimately choose decides, is mainly from those associated with the respective solution Costs depend.
a typical time course of the received voltage rectified in phase U shows FIG. 2.
the threshold value is also shown SW, falling below it triggers a counting pulse. Take it with you Wheel passage at the reception coil ES tapped receiving voltage after some time due to changing external conditions, for example the signal curve drawn in dashed lines, so according to the invention the AC voltages present at the transmitter coils SS1 and SS2 changed long until the receiving voltage returns to the original signal curve assumes. It is therefore not necessary to change the threshold value.
the AC voltages are preferably tracked at regular intervals time intervals.
Fig. 3 shows a schematic diagram for a circuit with the help of which such Tracking can be carried out.
the receiving coil ES is with this Circuit not only with an evaluation circuit generating the counting pulses, but also connected to a KOMP comparator.
KOMP also compares the signal curve of the received voltage a reference signal curve stored in the memory MEM.
MEM can be a non-rewritable memory, so that the reference signal curve already when the rail contact is put into operation is present.
the reference signal curve only when the rail contact is started up on site, for example using a standard wheel.
the reference waveform ensures in any case that the evaluation circuit wheel passages reliably registered with a sufficiently large signal-to-noise ratio.
the comparator determines that the received from the stored waveform If this deviates beyond a predeterminable level, he provides this information to a programmable processing unit CPU, which has two controllable, AC voltage sources connected to the transmitter coils SS1 and SS2 Controls WSQ1 and WSQ2.
the control takes place in such a way that when the next wheel passage the received signal curve closer to the stored one Reference signal curve lies. In this way, the field geometry can be iteratively so adapt to changed external conditions until the course the received voltage approximately matches the reference signal curve.
Another advantage of the rail contact according to the invention is that that the additional transmitter coil allows self-tests to be carried out.
a continuous change in the AC voltages applied to the transmitter coils can also be used in the absence of a railway wheel Reception coil ES produce a reception signal which is a wheel passage has the corresponding course.
Fig. 4 shows a schematic diagram for a circuit, with the help of such a Self test can be realized.
the circuit based on that shown in Fig. 3 Circuit based, has a self-test control unit STSE that is performing coordinated the self-test.
a command from the self-test control unit STSE are made from a preferably overwritable memory MEM2 data read out to the CPU.
the CPU controls the AC voltage sources WSQ1 and WSQ2 so that at the receiving coil ES a the reference signal curve corresponding receive voltage can be tapped.
the evaluation circuit AS outputs a count pulse.
the evaluation circuit AS transmits the self-test control unit STSE that a wheel passage has been registered. Receives the self-test control unit STSE no such feedback from the evaluation circuit AS, so notifies the self-test control unit STSE to the axle counting device that there is an error. Appropriate operational can then from the signal box Measures are taken.
command to perform a self-test too can be transmitted from the interlocking from the point of delivery.
command to perform a self-test too can be transmitted from the interlocking from the point of delivery.
adaptation of the field geometry to changed ones external conditions in this way, the need is eliminated immediately to make settings on the track contact on the track, which results in results in a significant cost reduction.

Landscapes

Engineering & Computer Science (AREA)
Automation & Control Theory (AREA)
Mechanical Engineering (AREA)
Health & Medical Sciences (AREA)
Biomedical Technology (AREA)
General Health & Medical Sciences (AREA)
Train Traffic Observation, Control, And Security (AREA)
Valve Device For Special Equipments (AREA)
Seats For Vehicles (AREA)
Escalators And Moving Walkways (AREA)
Arrangements For Transmission Of Measured Signals (AREA)
Platform Screen Doors And Railroad Systems (AREA)

EP98440184A 1997-10-15 1998-08-28 Contact placé sur la voie pour compteur d'essieux Expired - Lifetime EP0918009B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19745436A DE19745436A1 (de)	1997-10-15	1997-10-15	Schienenkontakt für eine Achszähleinrichtung
DE19745436		1997-10-15

Publications (3)

Publication Number	Publication Date
EP0918009A2 true EP0918009A2 (fr)	1999-05-26
EP0918009A3 EP0918009A3 (fr)	2001-09-26
EP0918009B1 EP0918009B1 (fr)	2004-07-14

Family

ID=7845549

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP98440184A Expired - Lifetime EP0918009B1 (fr)	1997-10-15	1998-08-28	Contact placé sur la voie pour compteur d'essieux

Country Status (4)

Country	Link
EP (1)	EP0918009B1 (fr)
AT (1)	ATE270988T1 (fr)
DE (2)	DE19745436A1 (fr)
ES (1)	ES2221139T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2160202C1 (ru) *	2000-02-29	2000-12-10	Государственное унитарное предприятие Забайкальская железная дорога	Устройство фиксации прохождения колесной пары и путевой датчик фиксации колесной пары
RU2323120C1 (ru) *	2006-08-11	2008-04-27	Закрытое акционерное общество "Научно-производственный центр "Промэлектроника" (ЗАО "НПЦ "Промэлектроника")	Способ фиксации проследования колеса подвижного состава по участку пути и устройство для его осуществления
TW200918381A (en) *	2007-09-03	2009-05-01	Siemens Ag	Method for counting axles in rail vehicles
TW200918382A (en) *	2007-09-03	2009-05-01	Siemens Ag	Method for counting axles in rail vehicles
DE102012202194A1 (de)	2012-02-14	2013-08-14	Siemens Aktiengesellschaft	Sensoreinrichtung zum Detektieren eines sich entlang einer Fahrschiene bewegenden Rades
DE102016201896A1 (de) *	2016-02-09	2017-08-10	Siemens Aktiengesellschaft	Sensoreinrichtung zum Erfassen einer Magnetfeldänderung sowie Verfahren zum Abgleichen einer solchen Sensoreinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3225166A1 (de) *	1982-07-06	1984-01-12	Gebhard Balluff Fabrik feinmechanischer Erzeugnisse GmbH & Co, 7303 Neuhausen	Metalldetektor
DE3302883A1 (de) *	1983-01-28	1984-08-02	Siemens AG, 1000 Berlin und 8000 München	Schaltungsanordnung zum erzeugen von achszaehlimpulsen fuer achszaehlanlagen
DD246089A1 (de) *	1986-02-19	1987-05-27	Werk F Signal Und Sicherungste	Schaltungsanordnung zur ueberwachung von achszaehleinrichtungen
AT400429B (de) *	1993-12-10	1995-12-27	Vae Ag	Verfahren zum festlegen des abtastbereiches von fahrzeugbetätigten messeinrichtungen sowie einrichtung zum einstellen und justieren von messeinrichtungen an gleiswegen relativ zu radsensoren
DE4405039A1 (de) *	1994-02-17	1995-08-24	Sel Alcatel Ag	Achszähler mit änderbarer Schwellwerteinstellung

1997
- 1997-10-15 DE DE19745436A patent/DE19745436A1/de not_active Withdrawn
1998
- 1998-08-28 AT AT98440184T patent/ATE270988T1/de active
- 1998-08-28 DE DE59811668T patent/DE59811668D1/de not_active Expired - Lifetime
- 1998-08-28 EP EP98440184A patent/EP0918009B1/fr not_active Expired - Lifetime
- 1998-08-28 ES ES98440184T patent/ES2221139T3/es not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0918009B1 (fr)	2004-07-14
EP0918009A3 (fr)	2001-09-26
DE19745436A1 (de)	1999-04-22
DE59811668D1 (de)	2004-08-19
ATE270988T1 (de)	2004-07-15
ES2221139T3 (es)	2004-12-16

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