ATE104909T1 - CIRCUIT ARRANGEMENT FOR TRACK VACANCY REPORT. - Google Patents

CIRCUIT ARRANGEMENT FOR TRACK VACANCY REPORT.

Info

Publication number
ATE104909T1
ATE104909T1 AT8888111310T AT88111310T ATE104909T1 AT E104909 T1 ATE104909 T1 AT E104909T1 AT 8888111310 T AT8888111310 T AT 8888111310T AT 88111310 T AT88111310 T AT 88111310T AT E104909 T1 ATE104909 T1 AT E104909T1
Authority
AT
Austria
Prior art keywords
frequency
circuit arrangement
threshold value
phase
suppress interference
Prior art date
Application number
AT8888111310T
Other languages
German (de)
Inventor
Hanns-Ludwig Schulmeyer
Original Assignee
Sel Alcatel 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
Application filed by Sel Alcatel Ag filed Critical Sel Alcatel Ag
Application granted granted Critical
Publication of ATE104909T1 publication Critical patent/ATE104909T1/en

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Traffic Control Systems (AREA)
  • Ceramic Products (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Noodles (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Electrotherapy Devices (AREA)
  • Electronic Switches (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)

Abstract

A circuit arrangement is disclosed which makes it possible to suppress interference voltages of identical frequency in a track circuit fed with AC current and equipped with a phase-sensitive threshold value switch (RG). The operating voltage (US) for the track circuit, from which the reference voltage for the phase-sensitive threshold value switch is also derived, is taken for this purpose from a controllable inverse rectifier (W) which is driven in such a way that its frequency is subject to constant slow change in a predetermined narrow range. In order to also suppress interference voltages which are present over a long time and whose frequency corresponds exactly to the centre frequency of the predetermined frequency range, the frequency range is shifted at specific time intervals. <IMAGE>
AT8888111310T 1987-07-18 1988-07-14 CIRCUIT ARRANGEMENT FOR TRACK VACANCY REPORT. ATE104909T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873723877 DE3723877A1 (en) 1987-07-18 1987-07-18 CIRCUIT ARRANGEMENT FOR TRACK CLEARANCE
EP88111310A EP0300363B1 (en) 1987-07-18 1988-07-14 Circuit arrangement for free track signalization

Publications (1)

Publication Number Publication Date
ATE104909T1 true ATE104909T1 (en) 1994-05-15

Family

ID=6331905

Family Applications (1)

Application Number Title Priority Date Filing Date
AT8888111310T ATE104909T1 (en) 1987-07-18 1988-07-14 CIRCUIT ARRANGEMENT FOR TRACK VACANCY REPORT.

Country Status (6)

Country Link
EP (1) EP0300363B1 (en)
AT (1) ATE104909T1 (en)
DE (2) DE3723877A1 (en)
ES (1) ES2055721T3 (en)
TR (1) TR23533A (en)
YU (1) YU135388A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634696A1 (en) * 1986-10-11 1988-04-14 Standard Elektrik Lorenz Ag Device for monitoring a section of track
DE19958965C5 (en) * 1999-12-07 2007-02-08 Siemens Ag Method and circuit arrangement for avoiding undesired response of track circuits
CN107967850B (en) * 2017-12-12 2023-08-25 柳州铁道职业技术学院 Real standard platform of railway phase-sensitive track circuit
CN114088433B (en) * 2021-12-24 2024-04-30 卡斯柯信号有限公司 Track circuit simulation load device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098982B (en) * 1959-06-08 1961-02-09 Siemens Ag Arrangement for evaluating alternating voltages, in particular voltages in track circuits for automatic track vacancy detection systems for railway safety systems, against a reference voltage
US4352475A (en) * 1980-05-23 1982-10-05 General Signal Corp. Audio frequency track circuit for rapid transit applications with signal modulation security
DE3403946A1 (en) * 1984-02-04 1985-08-08 Standard Elektrik Lorenz Ag, 7000 Stuttgart Presence-of-trains indicating device with track current coding

Also Published As

Publication number Publication date
DE3723877A1 (en) 1989-01-26
TR23533A (en) 1990-03-12
EP0300363A3 (en) 1989-11-23
YU135388A (en) 1990-12-31
ES2055721T3 (en) 1994-09-01
EP0300363B1 (en) 1994-04-27
DE3889258D1 (en) 1994-06-01
EP0300363A2 (en) 1989-01-25

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Legal Events

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