ES482064A1 - Perfeccionamientos en sistemas de transmision de datos por circuito de via. - Google Patents

Perfeccionamientos en sistemas de transmision de datos por circuito de via.

Info

Publication number
ES482064A1
ES482064A1 ES482064A ES482064A ES482064A1 ES 482064 A1 ES482064 A1 ES 482064A1 ES 482064 A ES482064 A ES 482064A ES 482064 A ES482064 A ES 482064A ES 482064 A1 ES482064 A1 ES 482064A1
Authority
ES
Spain
Prior art keywords
data transmission
transmission system
track circuit
safety
railway
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
ES482064A
Other languages
English (en)
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.)
Alstom SA
Original Assignee
Alsthom Atlantique 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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Publication of ES482064A1 publication Critical patent/ES482064A1/es
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/16—Continuous control along the route
    • B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
    • B61L3/24—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation employing different frequencies or coded pulse groups, e.g. in combination with track circuits
    • B61L3/246—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation employing different frequencies or coded pulse groups, e.g. in combination with track circuits using coded current

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

Perfeccionamientos en sistemas de transmisión de datos por circuito de vía, que comprenden un emisor dispuesto cerca de la via férrea y un receptor a bordo del vehículo ferroviario que recibe las señales eléctricas por mediación de la vía férrea cortocircuitada por los ejes del vehículo ferroviario, realizándose la modulación de los mensajes telegráficos entre el emisor y el receptor por desviación de frecuencia, de dos frecuencias F1 y F2 sinusoidales, caracterizados porque en la recepción a bordo del vehículo, las frecuencias F1 y F2 son transformadas en impulsos D que corresponden a los ceros ascendentes de las sinusoides disparando un primer monoestable cuya duración t1 es inferior al periodo de F1 y cuyo frente descendente gobierna los impulsos F de un segundo monoestable de duración igual al doble de la diferencia entre t1 y el periodo de F1, recibiendo una puerta Y, a la vez, los impulsos D y los impulsos F y permitiendo además proporcionan impulsos a la frecuencia F1, disparando losimpulsos D un tercer monoestable cuya duración t3 es inferior al periodo F2 y cuyo frente descendente gobierna impulsos K de un cuarto monoestable de duración igual al doble de la diferencia entre t3 y el periodo de F2, recibiendo una puerta Y, a la vez, impulsos D e impulsos K y permitiendo además proporcionar impulsos a la frecuencia F2, sirviendo los impulsos F1 y F2 para gobernar los estados lógicos 1 y C.
ES482064A 1978-06-30 1979-06-29 Perfeccionamientos en sistemas de transmision de datos por circuito de via. Expired ES482064A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7819609A FR2429696A1 (fr) 1978-06-30 1978-06-30 Systeme de transmission de donnees par circuit de voie

Publications (1)

Publication Number Publication Date
ES482064A1 true ES482064A1 (es) 1980-04-01

Family

ID=9210189

Family Applications (1)

Application Number Title Priority Date Filing Date
ES482064A Expired ES482064A1 (es) 1978-06-30 1979-06-29 Perfeccionamientos en sistemas de transmision de datos por circuito de via.

Country Status (3)

Country Link
EP (1) EP0006591A3 (es)
ES (1) ES482064A1 (es)
FR (1) FR2429696A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147132B (en) * 1983-03-14 1987-06-10 Walter Jaeger Method for increasing the number of signals which may be transmitted from a ground station to a rail vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE624826A (es) * 1961-11-24
FR1505604A (fr) * 1966-11-05 1967-12-15 Cit Alcatel Dispositif de télécommande pour transmission de données
US3551889A (en) * 1967-05-11 1970-12-29 Westinghouse Electric Corp Remote signaling of control signals

Also Published As

Publication number Publication date
EP0006591A2 (fr) 1980-01-09
FR2429696A1 (fr) 1980-01-25
EP0006591A3 (fr) 1980-01-23
FR2429696B1 (es) 1981-07-17

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