ES8204678A1 - Un aparato de proteccion automatico para trenes - Google Patents
Un aparato de proteccion automatico para trenesInfo
- Publication number
- ES8204678A1 ES8204678A1 ES502419A ES502419A ES8204678A1 ES 8204678 A1 ES8204678 A1 ES 8204678A1 ES 502419 A ES502419 A ES 502419A ES 502419 A ES502419 A ES 502419A ES 8204678 A1 ES8204678 A1 ES 8204678A1
- Authority
- ES
- Spain
- Prior art keywords
- track
- frequency
- track circuit
- circuit
- rapid transit
- 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
Links
- 238000001514 detection method Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
- B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
- B61L23/16—Track circuits specially adapted for section blocking
- B61L23/168—Track circuits specially adapted for section blocking using coded current
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
APARATO DE PROTECCION AUTOMATICO PARA TRENES QUE RECORREN UNA PLURALIDAD DE SECCIONES DE VIA SIN AISLAR A LO LARGO DE CARRILES DE VIA. EL UMBRAL DE RUIDO DEL CIRCUITO DE VIA SE AUMENTA DISPONIENDO DE RECEPTOR PARA QUE RESPONDA A SOLAMENTE UN REGIMEN DE MODULACION FIJO PARA LA PORTADORA DE FRECUENCIA DE LA VIA. DEBIDO A QUE LA APLICACION TIPICA PARA CIRCUITOS DE VIAS ES CON CARRILES SIN AISLAR, MIENTRAS QUE EL REGIMEN DE MODULACION PARA LA PORTADORA DE FRECUENCIA DE VIA EN CUALQUIER CIRCUITO DE VIA ES FIJO, ESE REGIMEN DE MODULACION ES DIFERENTE PARA CIRCUITOS DE VIA ADYACENTES, Y EN LA PRACTICA EL REGIMEN DE MODULACION CAMBIA DE UN CIRCUITO DE VIA A OTRO, USANDO CADA CIRCUITO DE VIA UNO DE ENTRE DOS REGIME
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/152,467 US4352475A (en) | 1980-05-23 | 1980-05-23 | Audio frequency track circuit for rapid transit applications with signal modulation security |
Publications (2)
Publication Number | Publication Date |
---|---|
ES502419A0 ES502419A0 (es) | 1982-05-16 |
ES8204678A1 true ES8204678A1 (es) | 1982-05-16 |
Family
ID=22543049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES502419A Expired ES8204678A1 (es) | 1980-05-23 | 1981-05-22 | Un aparato de proteccion automatico para trenes |
Country Status (8)
Country | Link |
---|---|
US (1) | US4352475A (es) |
KR (1) | KR830006047A (es) |
BR (1) | BR8103194A (es) |
CA (1) | CA1162631A (es) |
ES (1) | ES8204678A1 (es) |
IT (1) | IT1138363B (es) |
MX (1) | MX6055E (es) |
ZA (1) | ZA812275B (es) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN158693B (es) * | 1981-12-22 | 1987-01-03 | Westinghouse Brake & Signal | |
GB8413324D0 (en) * | 1984-05-24 | 1984-06-27 | Westinghouse Brake & Signal | Vehicle protection system |
DE3527828A1 (de) * | 1985-08-02 | 1987-03-26 | Standard Elektrik Lorenz Ag | Einrichtung zur ueberwachung des betriebs einer signallampe |
NL8800199A (nl) * | 1987-02-09 | 1988-09-01 | Gen Signal Corp | Digitale vitale snelheidsdecodeur. |
DE3723877A1 (de) * | 1987-07-18 | 1989-01-26 | Standard Elektrik Lorenz Ag | Schaltungsanordnung zur gleisfreimeldung |
US4932618A (en) * | 1989-04-11 | 1990-06-12 | Rockwell International Corporation | Sonic track condition determination system |
US5181679A (en) * | 1991-08-22 | 1993-01-26 | General Railway Signal Corporation | Railway train speed restriction apparatus |
KR100356511B1 (ko) * | 1997-08-29 | 2002-12-18 | 엘지산전 주식회사 | 오디오주파수궤도회로 |
JP4128914B2 (ja) * | 2003-07-03 | 2008-07-30 | 株式会社日立製作所 | 自動列車停止システム |
US7027897B2 (en) * | 2004-01-27 | 2006-04-11 | Bombardier Transportation Gmbh | Apparatus and method for suppressing mechanical resonance in a mass transit vehicle |
ATE393075T1 (de) * | 2005-02-18 | 2008-05-15 | Siemens Schweiz Ag | Antennenanordnung zur datenübertragung zwischen fahrzeug und gleisbereich |
MX2022004535A (es) * | 2019-10-14 | 2022-09-19 | Athena Industrial Tech Inc | Detector de rieles rotos. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3361905A (en) * | 1966-01-18 | 1968-01-02 | Westinghouse Air Brake Co | Movable block vehicle speed control system |
US3450875A (en) * | 1967-02-20 | 1969-06-17 | Gen Electric | Rail vehicle control system |
US3794833A (en) * | 1972-05-25 | 1974-02-26 | Westinghouse Air Brake Co | Train speed control system |
US3868075A (en) * | 1972-07-28 | 1975-02-25 | Westinghouse Air Brake Co | Jointless coded track circuits for railroad signal systems |
US3946972A (en) * | 1975-05-08 | 1976-03-30 | Westinghouse Air Brake Company | Simplified cab signal receiver circuit |
US4074879A (en) * | 1976-11-29 | 1978-02-21 | General Signal Corporation | Track signalling system |
US4065081A (en) * | 1976-12-09 | 1977-12-27 | General Signal Corporation | Alternating current track circuits |
-
1980
- 1980-05-23 US US06/152,467 patent/US4352475A/en not_active Expired - Lifetime
-
1981
- 1981-04-03 ZA ZA00812275A patent/ZA812275B/xx unknown
- 1981-04-03 CA CA000374568A patent/CA1162631A/en not_active Expired
- 1981-05-08 MX MX819441U patent/MX6055E/es unknown
- 1981-05-19 IT IT21830/81A patent/IT1138363B/it active
- 1981-05-22 KR KR1019810001781A patent/KR830006047A/ko unknown
- 1981-05-22 ES ES502419A patent/ES8204678A1/es not_active Expired
- 1981-05-22 BR BR8103194A patent/BR8103194A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
ES502419A0 (es) | 1982-05-16 |
US4352475A (en) | 1982-10-05 |
MX6055E (es) | 1984-10-16 |
IT8121830A0 (it) | 1981-05-19 |
IT1138363B (it) | 1986-09-17 |
BR8103194A (pt) | 1982-02-09 |
KR830006047A (ko) | 1983-09-17 |
ZA812275B (en) | 1982-04-28 |
CA1162631A (en) | 1984-02-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3492577A (en) | Audience rating system | |
ES8204678A1 (es) | Un aparato de proteccion automatico para trenes | |
ATE79495T1 (de) | Ukw-empfaenger mit rauschunterdrueckung beim empfang von signalen mit ''raleigh''¨berblendung. | |
ES512551A0 (es) | Perfeccionamientos en un receptor de onda ultra corta para un sistema de radiodifusion. | |
GB1079928A (en) | A data transmission system | |
US3018475A (en) | Responder device | |
GB1309570A (en) | Degradation detection in a pcm system | |
GB1036316A (en) | Improvements in or relating to data transmission systems | |
US3829682A (en) | Pulse coded railway signal system | |
FR2568432B1 (fr) | Procede et dispositif de transmission d'informations codees par voie hertzienne en superposition a une emission traditionnelle en modulation de frequence | |
KR930023895A (ko) | 수동 응답기가 장착된 차량통과 검출시스템 | |
GB980721A (en) | Improvements in interrogator-responder signalling systems | |
ES470945A1 (es) | Un equipo para senales en un paso a nivel de ferrocarril y carretera | |
US3740550A (en) | Pulse coded railway signal system | |
DE2967693D1 (en) | High performance amplitude modulation transmission system and television transmitter and retransmitter comprising such a system | |
GB1326926A (en) | Manlfunction monitoring equipment in a time division multi plexed transmission system | |
ES2006769A6 (es) | Instalacion para la transmision puntual de datos entre una via y un vehiculo que circula sobre ella | |
ES467246A1 (es) | Un sistema de radiodifusion perfeccionado. | |
ES419765A1 (es) | Sistema de senalizacion de ferrocarril. | |
GB1276948A (en) | A method of transmitting information along railway tracks and apparatus for use therein | |
US3670161A (en) | Combined high and low frequencies for track circuit | |
US3101394A (en) | Highway informer keying system | |
GB1349651A (en) | Electrical signalling for railways | |
JPS5728443A (en) | Amplitude and angle modulation broadcasting signal receiver and modulating circuit | |
GB840011A (en) | A railway automatic block signalling system employing track circuits |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20011110 |