EP1746009A2 - Circuit pour surveiller l'occupation d'un aiguillage ou d'une section de voie - Google Patents

Circuit pour surveiller l'occupation d'un aiguillage ou d'une section de voie Download PDF

Info

Publication number: EP1746009A2
Authority: EP; European Patent Office
Prior art keywords: controller; korr; signal; track circuit; synchronous rectifier
Prior art date: 2005-07-20
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

EP06117123A

Other languages

German (de)

English (en)

Other versions

EP1746009B1 (fr

EP1746009A3 (fr

Inventor

Marcus Else

Wolfgang Eue

Frank Gertler

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

Siemens Corp

Original Assignee

Siemens AG

Siemens Corp

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.)

2005-07-20

Filing date

2006-07-13

Publication date

2007-01-24

2006-07-13 Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG

2007-01-24 Publication of EP1746009A2 publication Critical patent/EP1746009A2/fr

2007-09-19 Publication of EP1746009A3 publication Critical patent/EP1746009A3/fr

2009-06-03 Application granted granted Critical

2009-06-03 Publication of EP1746009B1 publication Critical patent/EP1746009B1/fr

Status Not-in-force legal-status Critical Current

2026-07-13 Anticipated expiration legal-status Critical

Links

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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
- B61L1/18—Railway track circuits
- B61L1/181—Details
- B61L1/187—Use of alternating current

Definitions

the invention relates to a circuit arrangement for monitoring the occupancy state of a switch or a track area by means of a track circle, wherein during the driving of the track circuit by a rail vehicle, a resulting damping and resonance frequency change is detectable coupled with a synchronous rectifier for correlation in the track circuit coupled out of the track circuit Signals, which is connected via a low-pass filter with a controller for the evaluation of the correlation signal.
This effective range is a 6 to 12 m long track section, which is formed by means of a capacitive connection between the rails and the inductances of the rails as a resonant circuit.
the controller detects damping and resonant frequency changes during a rail vehicle encounter, caused by axle shorting and damping by the iron masses of the car body. Since a Achskurz gleich when driving through a road vehicle, such as a railroad crossing, can not be done, resulting in a distinctness of road and rail vehicles.
the invention has for its object to overcome these disadvantages and to provide a circuit arrangement of the generic type, in the component scattering and component failure can be detected in a simple manner.
the controller drives a frequency generator whose output signal is coupled via an output stage in the track circuit, that the frequency generator generates a first control signal, via a first cyclically controlled by the controller with Invert istssignale exclusive / OR gate to a first control input of the synchronous rectifier is guided, in that a signal input of the synchronous rectifier is connected to the signal coupled out of the track circuit and that the controller has means for evaluating and comparing the magnitude values of the inverted and non-inverted correlation signals.
the synchronous rectifier, the low-pass filter and the A / D converter in the controller are operated with cyclically altered signals in such a way that results in a high dynamics and value variety, the actual task, namely the target-actual test can be met without interruptions.
the Exclusive / OR gate acts as a controlled inverter. When the inversion signal is inactive, the original signals are output from the frequency generator to the synchronous rectifier. When the inversion signal is active, the signals are inverted. As a result of the inverted drive, the synchronous rectifier still outputs the same magnitude value of rectified voltage. Only the sign of the rectified voltage changes with respect to that with non-inverted control. DC errors, non-linearities, and other errors cause the magnitude value to change sign-dependent. This "two-quadrant check" results in a simple error detection.
a further synchronous rectifier is provided, which is also controlled inverting and non-inverting.
the controller sequentially outputs all four bit combinations, which can be represented by the two inversion signals for the two synchronous rectifiers.
the output stage according to claim 5 can be realized with a gain which can be switched down by the controller in one or more stages.
This drive can also be referred to as amplitude modulation or resampling. If changes to the stresses occur as a result of a change in amplification, extensive freedom from defects can be assumed. For testing purposes, the gain can be switched down at regular intervals for a short time.
the described sign changes and the amplitude modulation require a certain amount of time to be measurable over all filter effects for the controller.
at least one of the two test methods namely change of sign and amplitude modulation, can be temporarily suspended according to claim 6. If the sign change is suspended, the last state can remain until further notice. If the amplitude modulation is suspended, the gain should preferably be set to maximum. As soon as the vehicle has left the track section, it is again possible to proceed with the sign-variable two-quadrant test or four-quadrant test and possibly the amplitude modulation.
a PLL (Phase Locked Loop) element for frequency stabilization can be provided instead of the frequency generator.
Figure 1 illustrates a track circuit 1, which forms a resonant circuit of inductance forming rail portions 2a and 2b and a capacitor 3.
a low-frequency signal with a frequency of 20 to 30 Hz is coupled.
a controller 4 which is connected via a frequency generator 5 and an output stage 6 for amplifying the frequency signal to the track circuit 1.
the frequency generator 5 which can be set by the controller 4 generates two output signals f osz and f osz + 90 ° , which are identical in magnitude, but offset by 90 °.
the two output signals f osz and f osz + 90 ° can be fed back to the controller 4 for the purpose of checking.
the output signals f osz and f osz + 90 ° of the frequency generator 5 are respectively connected via exclusive / OR gates 7 and 7.1 with control inputs of two synchronous rectifiers 8 and 8.1, whose output signals are each passed through low-pass filters 9 and 9.1 to the controller 4.
the exclusive OR gates 7 and 7.1 are clocked by the controller 4 with inverted and non-inverted signals INV_REAL and INV_IMAG driven, so that the synchronous rectifiers 8 and 8.1 are applied alternately with positive and negative control signals.
the signal to be coupled into the track circuit 1 is fed to the controller 4 via a peak value rectifier 10 as a setpoint value U oszSoll .
the decoupled from the track circuit 1 signal forms the signal input of both the synchronous rectifier 8 and the synchronous rectifier 8.1.
the synchronous rectifiers 8 and 8.1 the two signals representing the input and the output of the track circuit 1 are virtually superimposed, so that correlation signals U Korr and U Korr + 90 ° to be evaluated and compared by the controller 4 are generated via the downstream low-pass filters 9 and 9.1.
the controller 4 carries out with the Pythagorean theorem an absolute value calculation of the correlation voltages U Korr and U Korr + 90 ° .
Error states can thus be quickly and reliably detected and corrected.
a controller By taking advantage of the usual skills A controller, the addition of less affordable components and correspondingly adapted processes can be avoided, much more expensive circuit alternatives.
the controller 4 generates from the inverted and non-inverted correlation voltages U Korr and U Korr + 90 ° by magnitude value determination an output signal which activates a free or busy message 11 of the considered track section.
the controller 4 may be connected to a diagnostic module 12, which polls certain parameters and / or a diagnostic device 13, which evaluates controller states.
the invention is not limited to the embodiment given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.

Landscapes

Engineering & Computer Science (AREA)
Automation & Control Theory (AREA)
Mechanical Engineering (AREA)
Train Traffic Observation, Control, And Security (AREA)
Electric Propulsion And Braking For Vehicles (AREA)
Near-Field Transmission Systems (AREA)
Alarm Systems (AREA)

EP06117123A 2005-07-20 2006-07-13 Circuit pour surveiller l'occupation d'un aiguillage ou d'une section de voie Not-in-force EP1746009B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102005034641A DE102005034641B3 (de)	2005-07-20	2005-07-20	Schaltungsanordnung zur Überwachung des Belegungszustandes einer Weiche oder eines Gleisbereichs

Publications (3)

Publication Number	Publication Date
EP1746009A2 true EP1746009A2 (fr)	2007-01-24
EP1746009A3 EP1746009A3 (fr)	2007-09-19
EP1746009B1 EP1746009B1 (fr)	2009-06-03

Family

ID=36928786

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06117123A Not-in-force EP1746009B1 (fr)	2005-07-20	2006-07-13	Circuit pour surveiller l'occupation d'un aiguillage ou d'une section de voie

Country Status (3)

Country	Link
EP (1)	EP1746009B1 (fr)
AT (1)	ATE432860T1 (fr)
DE (2)	DE102005034641B3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2012085560A1 (fr)	2010-12-23	2012-06-28	Control And Display Systems Limited	Dispositif de surveillance de circuit de voie ferrée
CN108349514A (zh) *	2015-09-14	2018-07-31	塔莱斯管理与服务德国有限责任公司	用于求得有轨车辆的速度的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102007023476B4 (de) *	2007-05-15	2009-07-09	Siemens Ag	Radsensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10320680A1 (de)	2003-04-30	2004-12-02	Siemens Ag	Schaltungsanordnung zur Überwachung des Belegungszustandes einer Weiche oder eines Gleisbereichs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2623967C3 (de) *	1976-05-28	1979-09-20	Standard Elektrik Lorenz Ag, 7000 Stuttgart	Phasensynchron gesteuerter Gleisstromkreisempfänger
DE3333298C2 (de) *	1983-09-15	1985-11-28	Standard Elektrik Lorenz Ag, 7000 Stuttgart	Gleisstromkreisempfänger mit Phasennachregelung
DE4025194A1 (de) *	1990-08-09	1992-02-13	Standard Elektrik Lorenz Ag	Gleisstromkreis mit kreuzkorrelation
US7254467B2 (en) *	2003-02-13	2007-08-07	General Electric Company	Digital train system for automatically detecting trains approaching a crossing

2005
- 2005-07-20 DE DE102005034641A patent/DE102005034641B3/de not_active Expired - Fee Related
2006
- 2006-07-13 AT AT06117123T patent/ATE432860T1/de active
- 2006-07-13 DE DE502006003864T patent/DE502006003864D1/de active Active
- 2006-07-13 EP EP06117123A patent/EP1746009B1/fr not_active Not-in-force

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10320680A1 (de)	2003-04-30	2004-12-02	Siemens Ag	Schaltungsanordnung zur Überwachung des Belegungszustandes einer Weiche oder eines Gleisbereichs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2012085560A1 (fr)	2010-12-23	2012-06-28	Control And Display Systems Limited	Dispositif de surveillance de circuit de voie ferrée
CN108349514A (zh) *	2015-09-14	2018-07-31	塔莱斯管理与服务德国有限责任公司	用于求得有轨车辆的速度的方法
US10858021B2 (en)	2015-09-14	2020-12-08	Thales Management & Services Deutschland Gmbh	Method for determining the speed of a rail-bound vehicle
CN108349514B (zh) *	2015-09-14	2021-01-05	塔莱斯管理与服务德国有限责任公司	用于求得有轨车辆的速度的方法

Also Published As

Publication number	Publication date
EP1746009B1 (fr)	2009-06-03
DE502006003864D1 (de)	2009-07-16
ATE432860T1 (de)	2009-06-15
EP1746009A3 (fr)	2007-09-19
DE102005034641B3 (de)	2007-03-08

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