ES396737A1 - Rail track section occupancy detector - uses axle detector differential counter to deliver release code on return to initial condition - Google Patents

Rail track section occupancy detector - uses axle detector differential counter to deliver release code on return to initial condition

Info

Publication number
ES396737A1
ES396737A1 ES396737A ES396737A ES396737A1 ES 396737 A1 ES396737 A1 ES 396737A1 ES 396737 A ES396737 A ES 396737A ES 396737 A ES396737 A ES 396737A ES 396737 A1 ES396737 A1 ES 396737A1
Authority
ES
Spain
Prior art keywords
detector
initial condition
differential counter
track section
return
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.)
Expired
Application number
ES396737A
Other languages
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES396737A1 publication Critical patent/ES396737A1/en
Expired legal-status Critical Current

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
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/161—Devices for counting axles; Devices for counting vehicles characterised by the counting methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

Track occupancy detector safety equipment for railways is based on axle counters at each end of an isolated track section. Rail contacts at two counting locations generate axle impulses dependent on the direction of travel. The impulses are also fed to further counters connected in parallel to determine the absolute axle count at the respective counting location. - The output from the differential counter is coupled to a comparator which compares the impulse count from adjacent counting locations and delivers a section-free signal to a central evaluator only when the differential counter has returned to its initial condition.
ES396737A 1970-11-06 1971-11-06 Rail track section occupancy detector - uses axle detector differential counter to deliver release code on return to initial condition Expired ES396737A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2054748A DE2054748C3 (en) 1970-11-06 1970-11-06 Device for evaluating direction-dependent axle counting pulses in railway safety systems

Publications (1)

Publication Number Publication Date
ES396737A1 true ES396737A1 (en) 1974-06-01

Family

ID=5787397

Family Applications (1)

Application Number Title Priority Date Filing Date
ES396737A Expired ES396737A1 (en) 1970-11-06 1971-11-06 Rail track section occupancy detector - uses axle detector differential counter to deliver release code on return to initial condition

Country Status (4)

Country Link
CH (1) CH535672A (en)
DE (1) DE2054748C3 (en)
ES (1) ES396737A1 (en)
ZA (1) ZA717481B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214304C2 (en) * 1982-04-19 1986-01-16 Siemens AG, 1000 Berlin und 8000 München Route monitoring device
DE3431171C2 (en) * 1984-08-24 1986-11-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Track vacancy detection device with axle counting
DE3445115A1 (en) * 1984-12-11 1986-06-12 Verkehrsbetriebe Peine-Salzgitter Gmbh, 3320 Salzgitter Arrangement for simplifying and improving safety of running trains
DE4421327C2 (en) * 1993-07-21 2002-11-14 Tiefenbach Gmbh warning system
DE19836421A1 (en) * 1998-08-12 2000-02-17 Alcatel Sa Method for transmitting a meter reading determined from a metering point to a central evaluation device
DE19901568A1 (en) * 1999-01-16 2000-07-27 Alcatel Sa Process for the evaluation of rail contact signals

Also Published As

Publication number Publication date
DE2054748B2 (en) 1978-09-14
DE2054748C3 (en) 1979-05-10
DE2054748A1 (en) 1972-07-06
ZA717481B (en) 1972-07-26
CH535672A (en) 1973-04-15

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