FR2404233A1 - PROCESS FOR THE TRANSMISSION OF DATA BETWEEN A CENTRAL AND SEVERAL SUBSTATIONS - Google Patents
PROCESS FOR THE TRANSMISSION OF DATA BETWEEN A CENTRAL AND SEVERAL SUBSTATIONSInfo
- Publication number
- FR2404233A1 FR2404233A1 FR7826487A FR7826487A FR2404233A1 FR 2404233 A1 FR2404233 A1 FR 2404233A1 FR 7826487 A FR7826487 A FR 7826487A FR 7826487 A FR7826487 A FR 7826487A FR 2404233 A1 FR2404233 A1 FR 2404233A1
- Authority
- FR
- France
- Prior art keywords
- central
- transmission
- data
- several substations
- moment
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
- G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
a. Procédé pour la transmission de données entre une centrale et plusieurs sous-stations. b. Procédé caractérisé en ce qu'à la fin de chaque appel une unité de calcul et de mesure du temps est mise en route, cette unité, sur la base de temps connu de réaction et de transit, fixe dans la sous-station et sur le trajet de transmission l'instant le plus rapproché possible où doit commencer la réponse qui doit arriver et libère pour cet instant l'enregistrement à la réception. c. L'invention s'applique notamment à la localisation de véhicules sur le terrain.at. Method for data transmission between a central and several substations. b. Method characterized in that at the end of each call a time calculation and measurement unit is started, this unit, on the basis of known reaction and transit time, fixed in the substation and on the transmission path the earliest possible moment at which the response to arrive must begin and for that moment releases the recording on reception. vs. The invention applies in particular to the location of vehicles in the field.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772742497 DE2742497A1 (en) | 1977-09-21 | 1977-09-21 | PROCEDURE FOR DATA TRANSFER BETWEEN A CONTROL UNIT AND A NUMBER OF SUBSTATIONS |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2404233A1 true FR2404233A1 (en) | 1979-04-20 |
Family
ID=6019533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7826487A Withdrawn FR2404233A1 (en) | 1977-09-21 | 1978-09-14 | PROCESS FOR THE TRANSMISSION OF DATA BETWEEN A CENTRAL AND SEVERAL SUBSTATIONS |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE870658A (en) |
DE (1) | DE2742497A1 (en) |
DK (1) | DK416078A (en) |
FR (1) | FR2404233A1 (en) |
GB (1) | GB2008897B (en) |
IT (1) | IT1098473B (en) |
LU (1) | LU80256A1 (en) |
NL (1) | NL7809483A (en) |
SE (1) | SE7809784L (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB422468A (en) * | 1933-06-09 | 1935-01-09 | Labouchere Hillyer Bainbridge | Improvements in and relating to wireless signalling |
GB552482A (en) * | 1940-12-27 | 1943-04-09 | Marconi Wireless Telegraph Co | Improvements in electric signal-communication systems |
GB590711A (en) * | 1944-02-19 | 1947-07-25 | Hazeltine Corp | Wave-signal transmitting and receiving system of the radar type |
GB862485A (en) * | 1958-05-12 | 1961-03-08 | Bendix Corp | Distance measuring system utilising radiant energy |
US3341845A (en) * | 1964-11-13 | 1967-09-12 | Thomson Houston Comp Francaise | System for automatic radio transfer of digital information and for distance computation |
GB1310679A (en) * | 1969-07-31 | 1973-03-21 | Marconi Co Ltd | Monitoring arrangements |
DE2549635B1 (en) * | 1975-11-05 | 1976-12-09 | Siemens Ag | Data transmission system using two frequency modulation - has simplified modems by using same clock for modulation and demodulation |
-
1977
- 1977-09-21 DE DE19772742497 patent/DE2742497A1/en not_active Withdrawn
-
1978
- 1978-09-14 FR FR7826487A patent/FR2404233A1/en not_active Withdrawn
- 1978-09-18 SE SE7809784A patent/SE7809784L/en unknown
- 1978-09-18 NL NL7809483A patent/NL7809483A/en not_active Application Discontinuation
- 1978-09-19 IT IT27821/78A patent/IT1098473B/en active
- 1978-09-19 LU LU80256A patent/LU80256A1/en unknown
- 1978-09-19 GB GB7837392A patent/GB2008897B/en not_active Expired
- 1978-09-20 DK DK416078A patent/DK416078A/en unknown
- 1978-09-21 BE BE190625A patent/BE870658A/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB422468A (en) * | 1933-06-09 | 1935-01-09 | Labouchere Hillyer Bainbridge | Improvements in and relating to wireless signalling |
GB552482A (en) * | 1940-12-27 | 1943-04-09 | Marconi Wireless Telegraph Co | Improvements in electric signal-communication systems |
GB590711A (en) * | 1944-02-19 | 1947-07-25 | Hazeltine Corp | Wave-signal transmitting and receiving system of the radar type |
GB862485A (en) * | 1958-05-12 | 1961-03-08 | Bendix Corp | Distance measuring system utilising radiant energy |
US3341845A (en) * | 1964-11-13 | 1967-09-12 | Thomson Houston Comp Francaise | System for automatic radio transfer of digital information and for distance computation |
GB1310679A (en) * | 1969-07-31 | 1973-03-21 | Marconi Co Ltd | Monitoring arrangements |
DE2549635B1 (en) * | 1975-11-05 | 1976-12-09 | Siemens Ag | Data transmission system using two frequency modulation - has simplified modems by using same clock for modulation and demodulation |
Non-Patent Citations (2)
Title |
---|
EXBK/71 * |
EXBK/72 * |
Also Published As
Publication number | Publication date |
---|---|
NL7809483A (en) | 1979-03-23 |
SE7809784L (en) | 1979-03-22 |
DK416078A (en) | 1979-03-22 |
BE870658A (en) | 1979-03-21 |
GB2008897B (en) | 1982-01-20 |
GB2008897A (en) | 1979-06-06 |
IT7827821A0 (en) | 1978-09-19 |
IT1098473B (en) | 1985-09-07 |
LU80256A1 (en) | 1979-06-01 |
DE2742497A1 (en) | 1979-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |