EP0443438B1 - Verfahren und Einrichtung zur Warnung von Personen im Gleisbereich über einen hochfrequenten Nachrichtenkanal - Google Patents

Verfahren und Einrichtung zur Warnung von Personen im Gleisbereich über einen hochfrequenten Nachrichtenkanal Download PDF

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Publication number
EP0443438B1
EP0443438B1 EP91102081A EP91102081A EP0443438B1 EP 0443438 B1 EP0443438 B1 EP 0443438B1 EP 91102081 A EP91102081 A EP 91102081A EP 91102081 A EP91102081 A EP 91102081A EP 0443438 B1 EP0443438 B1 EP 0443438B1
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EP
European Patent Office
Prior art keywords
stations
station
warning
processor
reporting
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 - Lifetime
Application number
EP91102081A
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German (de)
English (en)
French (fr)
Other versions
EP0443438A3 (en
EP0443438A2 (de
Inventor
Hermann Stein
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.)
Stein GmbH
Original Assignee
Stein GmbH
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Filing date
Publication date
Application filed by Stein GmbH filed Critical Stein GmbH
Publication of EP0443438A2 publication Critical patent/EP0443438A2/de
Publication of EP0443438A3 publication Critical patent/EP0443438A3/de
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Publication of EP0443438B1 publication Critical patent/EP0443438B1/de
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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
    • B61L23/06—Control, warning or like safety means along the route or between vehicles or trains for warning men working on the route

Definitions

  • the invention relates to a method and a device for warning people in the track area with the features specified in the preamble of claims 1 and 9, respectively.
  • the warning transmitter evaluates the transmission impulses of possible other warning transmitters, insofar as the transmission impulses can be evaluated on the basis of their field strength, so that the topographical area of coordination results from the field strength relationships; however, no field strength meter is used and no field strength measurement is carried out.
  • the warning transmitters and warning receivers contain processors, the warning receivers an HF receiving part with a demodulator and antenna, and the warning transmitters furthermore an HF transmitting part with a modulator; they are not nearly identical.
  • time-division multiplexing methods for the transmission of messages via a high-frequency channel are known (DE-AS 2818916 and DE-PS 3603907), which, however, only prevent the plugging of individual stations which send their messages to directly assigned recipients. Preventing blockages in the transmission of messages between the stations is not possible with these methods, in particular not in the case of chained, message-transmitting stations and their possibly adjacent warning systems, as is typical for systems for warning people in the track area.
  • the object of the invention is therefore to provide a method and a device in which it is possible to alert people in the track area in front of approaching trains by train stations set up on the track, which detect trains and signal the status information to a person located in the work area to warn capable warning station over a high-frequency message channel in time-division multiplex operation with the same transmission period, preventing clogging of the stations, even if systems of this type are adjacent.
  • the method and the device according to the invention has the particular advantage that for the first time the operation of several systems for warning people in the track area against approaching trains on one single high-frequency channel is possible. In addition to a frequency economy that cannot be further improved, there is no need to plan the use of different high-frequency channels, and identical construction of warning and signaling stations is possible, which enables economical production as well as economical provision by the operator.
  • claims 2 and 10 enable the number of time slots per transmission period to be reduced by avoiding the occupancy detection of confirmed own transmission time slots of the stations.
  • claims 3 and 11 serve a safety procedure that meets the requirements in terms of safety. Defective stations can thus be switched off and new stations can also be switched on during operation in order to increase the availability.
  • claims 5 and 13 enable an expedient type of installation with identical construction of all reporting stations and possible savings in occupied time slots when the warning station is connected to its neighbors.
  • claims 6 and 14 have an essential meaning. While maintaining the identical construction of the stations, they solve range problems in difficult terrain conditions, without thereby jeopardizing the security delimitation of a maximum delay time of the messages.
  • Claims 7 and 8 and 15 and 16 are also of significant importance.
  • the features of claims 7 and 15 serve for the selection of the most appropriate reporting stations for their implementation or prior installation in the traveling direction of the construction site.
  • the features of claims 8 and 16 serve for an automatic selection of the reporting stations for security monitoring.
  • FIG . 4 shows an example of a station (1 to 9, 31), the circuit structure of which enables the stations to be of the same type.
  • a processor 55 connected to a clock generator 57 receives and outputs information about a transceiver 51 and its antenna 53.
  • the communication link to the other stations is a high-frequency channel in time division multiplex operation with the same transmission period of the stations.
  • the processor 55 is connected to a read-only memory 59 which essentially contains the program and a memory 61. He carries out work steps that can be taken directly from the claims. He can stimulate warning means 63 in a warning station (5) and detect trains and their direction by a sensor 65 in reporting stations (1, 3, 7, 9). An adjustable address 67 the processor is also fed to address the stations (1 to 9, 31). If signaling stations (3, 7) are located in the immediate vicinity of the warning station (5), they can exchange their information via lines 69 connecting them instead of via the high-frequency channel in order to reduce the otherwise required transmission time slots.
  • FIG . 3 shows the transmission and reception ratios in time slots (Z) 1 to 6 of a transmission period at stations 1 to 9 and 31 for the example according to FIG. 1.
  • S the own transmission time slot
  • E the other stations
  • M the indirectly received time slots reported as occupied by these stations
  • the station 1 also sends information about the time slot 2 recognized as occupied as a position relative to its own time slot 1, for example as a time slot increment +1, since the time slot 2 to be reported follows a time slot increment later.
  • a simultaneous notification of the address of the station 31 received in this way is advantageous for a response to this in order to identify the report of the own time slot.
  • the message reaches stations 3 to 7 in time slot 1, which then save time slot 1 indirectly as occupied (M) for several periods due to direct reception (E) and addition of message +1 as time slot 2, the latter, in order on the one hand to counter influences of field strength fluctuations and to be able to distribute this message over several periods and on the other hand not to prevent an update.
  • the last operating station 9 stores the time slots because of the field strength ratios 25 3 to 5 direct (E) and time slot 1 indirect (M) as busy signaling of stations 3 to 7 as occupied.
  • the station 9 can select the free time slot 6, but also the time slot 2 already used by the station 31, as its own transmission time slot.
  • unnecessary transmission time slots are avoided, so that practically all warning systems can be operated on a high-frequency channel, even if they collide with neighboring systems.
  • a sporadic time slot change stimulated, for example, by a random algorithm in the processor 55, enables problem-free implementation of the stations on moving construction sites, since the station's previously occupied time slot is also checked.
  • the processor 55 of the signaling station 5 can stimulate the processors 55 of the signaling stations (1, 3, 7, 9) to start or stop operation or to change the operating mode, depending on a field strength measurement in the transmission, by corresponding information about the high-frequency channel. / Receiving part 51, the operation as a relay station being of particular importance in the case of poor radio propagation. Such a situation is shown in FIG . 2 shown.
  • a reporting station (11) transmits its information to the warning station 5 via a relay station 9, in that the processor 55 of the relay station 9 buffers the received information in the memory 61 and in the next own transmission time slot plus information identifying the time between the reception time slot and the own transmission time slot sends the delay in the relay station to the warning station 5, the processor 55 of which subtracts this delay time from a stored (59) maximum permissible delay time and buffers (61) the time when it is exceeded as a result of which unsuccessful reception triggers the alarm (63) from this point in time .
  • the implementation of the stations (1 to 11) becomes problem-free in terms of security if the processor 55 in the warning station 5 can determine its distance and direction by means of adjustable location addresses (67) by comparison with the location addresses received as information, and thus predefined in the memory 59 Minimum distance to announcing reporting stations (1, 11) can check.
  • the processor 55 of the warning station 5 can, in an equivalent manner, check the new distance of the converted stations and automatically select the operating modes accordingly. For example, when the warning station 5 is moved to position 5a, the relay station 9 can be moved to a deregistering station can be switched due to the new conditions by warning station 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Near-Field Transmission Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
EP91102081A 1990-02-21 1991-02-14 Verfahren und Einrichtung zur Warnung von Personen im Gleisbereich über einen hochfrequenten Nachrichtenkanal Expired - Lifetime EP0443438B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005354 1990-02-21
DE4005354A DE4005354A1 (de) 1990-02-21 1990-02-21 Verfahren und einrichtung zur warnung von personen im gleisbereich ueber einen hochfrequenten nachrichtenkanal

Publications (3)

Publication Number Publication Date
EP0443438A2 EP0443438A2 (de) 1991-08-28
EP0443438A3 EP0443438A3 (en) 1992-06-10
EP0443438B1 true EP0443438B1 (de) 1995-01-04

Family

ID=6400597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102081A Expired - Lifetime EP0443438B1 (de) 1990-02-21 1991-02-14 Verfahren und Einrichtung zur Warnung von Personen im Gleisbereich über einen hochfrequenten Nachrichtenkanal

Country Status (4)

Country Link
EP (1) EP0443438B1 (enrdf_load_stackoverflow)
AT (1) ATE116611T1 (enrdf_load_stackoverflow)
DE (1) DE4005354A1 (enrdf_load_stackoverflow)
ES (1) ES2067778T3 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6113037A (en) * 1991-02-04 2000-09-05 Eva Signal Corporation Railroad maintenance-of-way personnel warning system apparatus and method therefor
US5735492A (en) * 1991-02-04 1998-04-07 Pace; Joseph A. Railroad crossing traffic warning system apparatus and method therefore
DE4433177C1 (de) * 1994-07-22 1996-02-08 Stein Gmbh Verfahren und Einrichtung zur Warnung von Personen im Gleisbereich
DE4425969C1 (de) * 1994-07-22 1995-07-06 Stein Gmbh Verfahren und Einrichtung zur Warnung von Personen im Gleisbereich
DE4428822C1 (de) * 1994-08-16 1996-04-25 Stein Gmbh Verfahren und Einrichtung zur Warnung von Personen im Gleisbereich
DE19627681C1 (de) * 1996-07-10 1997-07-24 Stein Gmbh Verfahren und Einrichtung zur Warnung von Personen im Gleisbereich
ES2189584B1 (es) * 2000-03-08 2004-11-16 Lineas Y Cables, S.A. Sistema de aviso de llegada de circulacion ferroviaria.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2211313C3 (de) * 1972-03-09 1974-08-29 Robert Bosch Elektronik Gmbh, 1000 Berlin Und 7000 Stuttgart Verfahren zum drahtlosen Steuern von beweglichen Objekten
DE2818916C2 (de) * 1978-04-28 1986-08-21 Steuerungstechnik GmbH, 8000 München Einrichtung zum Synchronisieren mehrerer autonom im Zeitmultiplexbetrieb sendender Sendestationen
BE894853A (fr) * 1982-04-28 1983-02-14 Theimeg Elektronikgerate G M B Procede pour la synchronisation de postes transmetteurs autonomes, egalement autorises entre eux et fonctionnant sur une frequence d'emission en multiplexage par repartition dans le temps
DE3603907C1 (en) * 1986-02-07 1987-04-16 Stein Gmbh Method and device for time division multiplex operation of a changing number of stations operating autonomously on one communications channel

Also Published As

Publication number Publication date
EP0443438A3 (en) 1992-06-10
EP0443438A2 (de) 1991-08-28
ATE116611T1 (de) 1995-01-15
DE4005354A1 (de) 1991-08-22
ES2067778T3 (es) 1995-04-01
DE4005354C2 (enrdf_load_stackoverflow) 1992-01-09

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