CA2241520C - Detecteur de proximite d'un train - Google Patents
Detecteur de proximite d'un train Download PDFInfo
- Publication number
- CA2241520C CA2241520C CA002241520A CA2241520A CA2241520C CA 2241520 C CA2241520 C CA 2241520C CA 002241520 A CA002241520 A CA 002241520A CA 2241520 A CA2241520 A CA 2241520A CA 2241520 C CA2241520 C CA 2241520C
- Authority
- CA
- Canada
- Prior art keywords
- train
- carrier
- proximity
- carrier frequency
- signals
- 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 - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 230000004913 activation Effects 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 14
- 230000004044 response Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims 1
- 230000001953 sensory effect Effects 0.000 claims 1
- 238000012795 verification Methods 0.000 claims 1
- 238000012986 modification Methods 0.000 abstract description 10
- 230000004048 modification Effects 0.000 abstract description 10
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 8
- 230000003137 locomotive effect Effects 0.000 description 5
- 230000000994 depressogenic effect Effects 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
- B61L29/246—Signals or brake- or lighting devices mounted on the road vehicle and controlled from the vehicle or train
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0965—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
L'invention concerne un détecteur de proximité d'un train (Fig. 1), destiné à détecter une porteuse RF émise par un train, pendant une durée prédéfinie. Par ailleurs, les données codées de modulation par déplacement de fréquence (FSK) sont décodées pour déterminer une éventuelle correspondance avec une identification de données prédéfinie. En cas de correspondance, des indications visuelles (44) et audio (40) sont fournies à l'opérateur, signalant ainsi la proximité immédiate d'un train. Il est possible de modifier les équipements du train pour déclencher l'émission de la porteuse et des données FSK lors de l'activation du sifflement (160) du train, lequel s'effectue à une distance d'environ 1500 pieds de chaque passage à niveau.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US944195P | 1995-12-29 | 1995-12-29 | |
US60/009,441 | 1995-12-29 | ||
US08/600,351 US5739768A (en) | 1995-08-22 | 1996-02-12 | Train proximity detector |
US08/600,351 | 1996-02-12 | ||
PCT/US1996/020602 WO1997024704A1 (fr) | 1995-12-29 | 1996-12-24 | Detecteur de proximite d'un train |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2241520A1 CA2241520A1 (fr) | 1997-07-10 |
CA2241520C true CA2241520C (fr) | 2005-03-22 |
Family
ID=26679485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002241520A Expired - Fee Related CA2241520C (fr) | 1995-12-29 | 1996-12-24 | Detecteur de proximite d'un train |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0870289B1 (fr) |
AU (1) | AU715330B2 (fr) |
CA (1) | CA2241520C (fr) |
DE (1) | DE69633191D1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113377032B (zh) * | 2021-06-09 | 2022-09-27 | 王海涛 | 悬挂式轨道交通系统的控制系统及运行控制方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3854119A (en) * | 1972-08-11 | 1974-12-10 | Solitron Devices | Vehicle proximity alerting means |
US4296496A (en) * | 1974-07-03 | 1981-10-20 | Sadler William S | Emergency radio frequency warning device |
US4942395A (en) * | 1987-08-24 | 1990-07-17 | Ferrari John S | Railroad grade crossing motorist warning system |
US5497145A (en) * | 1994-07-05 | 1996-03-05 | Motorola, Inc. | Selective call receiver with battery saving features and method therefor |
US5554982A (en) * | 1994-08-01 | 1996-09-10 | Hughes Aircraft Co. | Wireless train proximity alert system |
-
1996
- 1996-12-24 EP EP96945646A patent/EP0870289B1/fr not_active Expired - Lifetime
- 1996-12-24 CA CA002241520A patent/CA2241520C/fr not_active Expired - Fee Related
- 1996-12-24 DE DE69633191T patent/DE69633191D1/de not_active Expired - Lifetime
- 1996-12-24 AU AU16874/97A patent/AU715330B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU1687497A (en) | 1997-07-28 |
DE69633191D1 (de) | 2004-09-23 |
AU715330B2 (en) | 2000-01-20 |
EP0870289B1 (fr) | 2004-08-18 |
EP0870289A1 (fr) | 1998-10-14 |
EP0870289A4 (fr) | 1999-03-10 |
CA2241520A1 (fr) | 1997-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20131224 |