FR2391604A1 - RADIO INSTALLATION FOR TUNNELS - Google Patents

RADIO INSTALLATION FOR TUNNELS

Info

Publication number
FR2391604A1
FR2391604A1 FR7815366A FR7815366A FR2391604A1 FR 2391604 A1 FR2391604 A1 FR 2391604A1 FR 7815366 A FR7815366 A FR 7815366A FR 7815366 A FR7815366 A FR 7815366A FR 2391604 A1 FR2391604 A1 FR 2391604A1
Authority
FR
France
Prior art keywords
cables
tunnel
repeaters
transmitting
receiving units
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.)
Granted
Application number
FR7815366A
Other languages
French (fr)
Other versions
FR2391604B1 (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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding 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 Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Publication of FR2391604A1 publication Critical patent/FR2391604A1/en
Application granted granted Critical
Publication of FR2391604B1 publication Critical patent/FR2391604B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H04B5/28—

Abstract

To set up radio links in tunnels, such as those required by the police, the maintenance and emergency services, as well as by individual travellers equipped with radio units, radiating cables (Ka) with repeaters (V) to compensate for signal attenuation are disposed along the tunnel. Separate radiating cables are provided for transmitters (S1, S2) and receivers (E1, E2) in order to decouple adjacent transmission channels. Transmitting and receiving units can be provided at one end of the tunnel only and the repeaters in each of the two cables can operate in opposite directions or the transmitting and receiving units can be disposed at different ends of the tunnel and the repeaters in both cables can operate in the same direction. Maintenance of the radio links in the event of interruption of a link can be ensured by monitoring both cables by means of a pilot signal supplied by a pilot generator (PG) which is received by a pilot evaluator (PA1, PA2). Transmitting and receiving units are required at both ends of the tunnel for this purpose.
FR7815366A 1977-05-20 1978-05-18 RADIO INSTALLATION FOR TUNNELS Granted FR2391604A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH628077A CH615545A5 (en) 1977-05-20 1977-05-20 Tunnel radio system

Publications (2)

Publication Number Publication Date
FR2391604A1 true FR2391604A1 (en) 1978-12-15
FR2391604B1 FR2391604B1 (en) 1982-09-17

Family

ID=4307063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7815366A Granted FR2391604A1 (en) 1977-05-20 1978-05-18 RADIO INSTALLATION FOR TUNNELS

Country Status (6)

Country Link
AT (1) AT377400B (en)
CH (1) CH615545A5 (en)
DE (1) DE2728765C2 (en)
FR (1) FR2391604A1 (en)
IT (1) IT1095625B (en)
YU (1) YU55778A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992010883A1 (en) * 1990-12-14 1992-06-25 Ainsworth Automation Inc. Communication system
EP0913956A1 (en) * 1997-10-30 1999-05-06 TELEDIFFUSION DE FRANCE, société anonyme Leaky feeder radiocommunication system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT372661B (en) * 1980-12-01 1983-11-10 Voest Alpine Ag PLANT FOR INDUCTIVE TRANSMISSION OF SIGNAL TELEGRAMS BETWEEN A FIXED TRANSMITTER AND RECEIVING STATION AND INDIVIDUAL FUNDING MEANS
AT376341B (en) * 1981-11-06 1984-11-12 Siemens Ag Oesterreich BROADBAND TUNNEL RADIO
DE19950882C2 (en) * 1999-10-22 2001-10-18 Motorola Inc Communication system for an area with limited reception possibilities
CN103595458B (en) * 2012-08-14 2017-12-15 西门子公司 A kind of communication equipment based on cable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979674A (en) * 1974-08-07 1976-09-07 Coal Industry (Patents) Limited Radiating telecommunication systems
FR2303428A1 (en) * 1975-03-07 1976-10-01 Coal Industry Patents Ltd TELECOMMUNICATIONS DEVICE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1389554A (en) * 1972-05-26 1975-04-03 Coal Industry Patents Ltd Radiating line transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979674A (en) * 1974-08-07 1976-09-07 Coal Industry (Patents) Limited Radiating telecommunication systems
FR2303428A1 (en) * 1975-03-07 1976-10-01 Coal Industry Patents Ltd TELECOMMUNICATIONS DEVICE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/77 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992010883A1 (en) * 1990-12-14 1992-06-25 Ainsworth Automation Inc. Communication system
US5432838A (en) * 1990-12-14 1995-07-11 Ainsworth Technologies Inc. Communication system
EP0913956A1 (en) * 1997-10-30 1999-05-06 TELEDIFFUSION DE FRANCE, société anonyme Leaky feeder radiocommunication system
FR2770709A1 (en) * 1997-10-30 1999-05-07 Telediffusion Fse RADIOCOMMUNICATION SYSTEM WITH RADIANT CABLE

Also Published As

Publication number Publication date
YU55778A (en) 1982-08-31
CH615545A5 (en) 1980-01-31
AT377400B (en) 1985-03-11
DE2728765A1 (en) 1978-11-30
IT7823563A0 (en) 1978-05-18
FR2391604B1 (en) 1982-09-17
DE2728765C2 (en) 1986-02-13
ATA364378A (en) 1983-09-15
IT1095625B (en) 1985-08-10

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Legal Events

Date Code Title Description
ST Notification of lapse