EP0443438B1 - Method and device for warning persons in the track area via a high frequency communications channel - Google Patents
Method and device for warning persons in the track area via a high frequency communications channel Download PDFInfo
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- 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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- 238000004891 communication Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
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- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 17
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- 238000012545 processing Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 6
- 239000000872 buffer Substances 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
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- 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.
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Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Einrichtung zur Warnung von Personen im Gleisbereich mit den im Oberbegriff der Patentansprüche 1 bzw. 9 angegebenen Merkmalen.The invention relates to a method and a device for warning people in the track area with the features specified in the preamble of
Bekannt sind Einrichtungen zur Warnung von Personen im Gleisbereich vor herannahenden Zügen durch eine hochfrequente, zyklisch zeitmultiplexe Nachrichtenübermittlung je eines Warnsenders an durch Adressierung zugeordnete Warnempfänger, die von allen im Gefahrenbereich tätigen Arbeitskräften getragen werden (LENGEMANN, STEIN, "Die Individualwarnanlage IWA" in Eisenbahningenieur, 1987, H.2, S.51-56 bzw. LENGEMANN, DOHRS, FRANK, "Automatische Rottenwarnsysteme - von der kollektiven zur individuellen Warnanlage" in Signal + Draht, 1987, H.1/2, S.31-38). Zur Koordinierung des Multiplexverfahrens wertet der Warnsender die Sendeimpulse möglicher anderer Warnsender aus, soweit sich die Sendeimpulse aufgrund ihrer Feldstärke auswerten lassen, sodaß sich der topographische Raum der Koordinierung durch die Feldstärkeverhältnisse ergibt; es wird aber kein Feldstärkemesser eingesetzt und keine Feldstärkemessung durchgeführt. Die Warnsender und Warnempfänger enthalten Prozessoren, die Warnempfänger einen HF-Empfangsteil mit Demodulator und Antenne, die Warnsender darüberhinaus einen HF-Sendeteil mit Modulator; sie sind nicht angenähert baugleich.Devices are known for warning people in the track area of approaching trains by means of a high-frequency, cyclically time-multiplexed message transmission of one warning transmitter each to addressees assigned by addressing, which are carried by all workers working in the danger area (LENGEMANN, STEIN, "The individual warning system IWA" in railway engineers, 1987, H.2, p.51-56 or LENGEMANN, DOHRS, FRANK, "Automatic Rottenwarnsysteme - from the collective to the individual warning system" in Signal + Draht, 1987, H.1 / 2, p.31-38). To coordinate the multiplex method, 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.
Bekannt sind auch Einrichtungen zur Warnung von Personen im Gleisbereich über einen hochfrequenten Nachrichtenkanal durch die Veröffentlichungen ANGRABEIT, "Automatisierung der Rottenwarnung" in Signal + Draht, 1981, H.1/2, S.51-63 und LENGEMANN, "Von der Erkennung bis zur Alarmgebung" in Elektrische Bahnen, 1983, H.6, S.204-209. Zum Betrieb mehrerer solcher Einrichtungen in der Nähe zueinander sind jedoch mehrere hochfrequente Nachrichtenkanäle notwendig, um gegenseitiges Zustopfen der Stationen zu vermeiden. In Anbetracht des hohen Bedarfs an Warnanlagen und der geringen Anzahl zur Verfügung stehender Hochfrequenzkanäle sind ohne weitere Maßnahmen die beschriebenen Einrichtungen praktisch nicht anwendbar und wurden bis auf einzelne Versuche auch noch nicht eingesetzt. Asynchrone Hochfrequenzmultiplexverfahren sind wegen der zu lange dauernden Kollisionsauflösung bei Überdeckungen der Sendezeiten nicht anwendbar.Also known are devices for warning people in the track area via a high-frequency news channel through the publications ANGRABEIT, "Automation of the Rottenwarnung" in Signal + Draht, 1981, H.1 / 2, p.51-63 and LENGEMANN, "From detection to for alarming "in electric railways, 1983, H.6, p.204-209. In order to operate several such devices in the vicinity of one another, however, several high-frequency message channels are necessary in order to avoid mutual plugging of the stations. In view of the high demand for warning systems and the small number of available high-frequency channels, the described devices are practically not applicable without further measures and have not yet been used except for individual tests. Asynchronous high-frequency multiplexing methods cannot be used due to the collision resolution, which takes too long, if the transmission times overlap.
Weiterhin sind Zeitmultiplexverfahren für die Nachrichtenübermittlung über einen hochfrequenten Kanal bekannt (DE-AS 2818916 und DE-PS 3603907), die jedoch nur das Zustopfen einzelner Stationen verhindern, die ihre Nachrichten zu ihnen unmittelbar zugeordnete Empfänger absetzen. Ein Verhindern von Zustopfen bei der Nachrichtenübermittlung zwischen den Stationen ist mit diesen Verfahren nicht möglich, insbesondere nicht bei verketteten, nachrichtenübermittelnden Stationen und deren eventuell benachbarten Warnanlagen, wie dies typisch ist für Anlagen zur Warnung von Personen im Gleisbereich.Furthermore, 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.
Aufgabe der Erfindung ist es daher, ein Verfahren und eine Einrichtung anzugeben, bei welchen es möglich wird, Personen im Gleisbereich vor herannahenden Zügen durch am Gleis aufgestellte, Züge detektierende Meldestationen, die den Zug signalisierende Statusinformationen an eine im Arbeitsbereich der Personen befindliche, zur Alarmgebung fähige Warnstation über einen hochfrequenten Nachrichtenkanal im Zeitmultiplexbetrieb mit gleicher Sendeperiode leiten, zu warnen, wobei ein Zustopfen der Stationen verhindert wird, auch dann, wenn Anlagen dieser Art benachbart sind.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.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 bzw. 9 gelöst.This object is achieved according to the invention by the characterizing features of
Das Verfahren bzw. die Einrichtung gemäß der Erfindung hat den besonderen Vorteil, daß erstmals der Betrieb mehrerer Anlagen zur Warnung von Personen im Gleisbereich vor herannahenden Zügen auf einem einzigen hochfrequenten Kanal möglich wird. Neben einer nicht weiter verbesserbaren Frequenz-Ökonomie wird eine Einsatzplanung von unterschiedlichen Hochfrequenzkanälen überflüssig und eine baugleiche Ausbildung von Warn- und Meldestationen möglich, die eine wirtschaftliche Herstellung als auch eine ökonomische Vorhaltung beim Betreiber ermöglicht.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.
Nachfolgend sind vorteilhafte Weiterbildungen der Erfindung erwähnt.Advantageous developments of the invention are mentioned below.
Die Merkmale des Anspruchs 2 bzw. 10 ermöglichen die Reduzierung der Anzahl der Zeitschlitze pro Sendeperiode durch Vermeidung der Belegungserfassung rückgemeldeter eigener Sendezeitschlitze der Stationen.The features of
Einer sicherheitstechnischen Ansprüchen genügenden Einschaltprozedur dienen die Merkmale des Anspruchs 3 bzw. 11. Damit sind auch während des Betriebs defekte Stationen abschaltbar und neue Stationen zuschaltbar, um die Verfügbarkeit zu erhöhen.The features of
Bei dem Einsatz von Warnanlagen bei wandernden Baustellen ergeben die Merkmale des Anspruchs 4 bzw. 12 eine Aktualisierung der Zeitschlitze, sodaß auch die Sendeverhältnisse der übrigen Stationen am vorher belegten Zeitschlitz erfaßt werden können. Ermöglicht wird dies durch die Besonderheit des Verfahrens einer freien Wahl eines Zeitschlitzes aus allen als nicht belegt erfaßten und gemeldeten Zeitschlitzen.When warning systems are used on moving construction sites, the features of
Die Merkmale des Anspruchs 5 bzw. 13 ermöglichen eine zweckmäßige Aufstellungsart bei Baugleichheit aller Meldestationen und eine eventuelle Einsparung an belegten Zeitschlitzen bei Leitungsanschluß der Warnstation mit ihren Nachbarn.The features of
Die Merkmale des Anspruchs 6 bzw. 14 haben eine wesentliche Bedeutung. Sie lösen unter Wahrung der Baugleichheit der Stationen Reichweitenprobleme bei schwierigen Geländeverhältnissen, ohne daß dadurch die sicherheitstechnische Abgrenzung einer maximalen Verzugszeit der Nachrichten gefährdet wird.The features of
Ebenso kommt den Ansprüchen 7 und 8 bzw. 15 und 16 eine wesentliche Bedeutung zu. Der Auswahl der zweckmäßigsten Meldestationen bei deren Umsetzen oder vorheriger Aufstellung in Wanderrichtung der Baustelle dienen die Merkmale des Anspruchs 7 bzw. 15. Eine diesbezüglich automatische Auswahl der Meldestationen bei sicherheitstechnischer Überwachung dienen die Merkmale des Anspruchs 8 bzw. 16.
Die Merkmale des Anspruchs 17 ermöglichen durch an sich bekannte Maßnahmen (Elektrotechnik und Informationstechnik, 1988, H.11, S.491) in einer wirtschaftlichen und gut prüfbaren Weise die sicherheitstechnisch notwendige Offenbarung eines Fehlers in der Einrichtung.The features of claim 17 enable known per se Measures (electrical engineering and information technology, 1988, H.11, p.491) in an economical and easily verifiable manner the safety-related disclosure of an error in the facility.
Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnungen näher erläutert. Es zeigt
- FIG. 1 eine Anordnung der Stationen,
- FIG. 2 eine weitere Anordnung der Stationen,
- FIG. 3 die Sende-/Empfangsverhältnisse der Stationen
- FIG. 4 ein Blockschaltbild einer Station
- FIG. 5 ein weiteres Blockschaltbild einer Station
- FIG . 1 an arrangement of the stations,
- FIG . 2 a further arrangement of the stations,
- FIG . 3 the transmission / reception conditions of the stations
- FIG . 4 is a block diagram of a station
- FIG . 5 shows a further block diagram of a station
In FIG. 4 ist ein Beispiel einer Station (1 bis 9, 31) dargestellt, deren Schaltungsaufbau eine gleiche Bauart der Stationen ermöglicht. Ein mit einem Taktgenerator 57 verbundener Prozessor 55 empfängt und gibt Informationen über einen Sende-/Empfangsteil 51 und dessen Antenne 53 ab. Die Nachrichtenverbindung zu den anderen Stationen ist ein hochfrequenter Kanal im Zeitmultiplexbetrieb mit gleicher Sendeperiode der Stationen. Der Prozessor 55 ist mit einem im wesentlichen das Programm enthaltenen Festwertspeicher 59 und einem Speicher 61 verbunden. Er führt Arbeitsschritte durch, die direkt den Ansprüchen entnommen werden können. Er kann Warnmittel 63 in einer Warnstation (5) anreizen und Züge und deren Richtung durch einen Sensor 65 in Meldestationen (1, 3, 7, 9) detektieren. Eine einstellbare Adresse 67 zur Adressierung der Stationen (1 bis 9, 31) wird dem Prozessor ebenfalls zugeführt. Falls sich Meldestationen (3, 7) in unmittelbarer Nähe der Warnstation (5) befinden, können diese ihre Informationen über sie verbindende Leitungen 69 anstatt über den Hochfrequenzkanal austauschen zur Reduzierung sonst erforderlicher Sendezeitschlitze.In 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
Durch Verdopplung der Schaltungsblöcke 75, 77 (Fig.4) gemäß FIG. 5 können sicherheitstechnische Erfordernisse zur Aufdeckung eines Fehlers erfüllt werden, indem die Prozessoren 55 über eine Verbindungsleitung Quittungssignale zur Koordinierung ihres angenäherten Gleichlaufs austauschen. Bei zu großen Abweichungen des Gleichlaufs lösen die Prozessoren 55 Alarm aus.By doubling the
In FIG. 3 sind die Sende- und Empfangsverhältnisse in den Zeitschlitzen (Z) 1 bis 6 einer Sendeperiode bei den Stationen 1 bis 9 und 31 für das Beispiel nach Fig. 1 dargestellt. Für jede Station ist von unten nach oben zeilenförmig der eigene Sendezeitschlitz (S), die direkt aufgrund der Feldstärkeverhältnisse empfangenen anderen Stationen (E) und die indirekt empfangenen, von diesen Stationen (M) als belegt gemeldeten Zeitschlitze eingetragen. Es ist zunächst angenommen, daß nur die Station 31 der benachbarten Anlage im Zeitschlitz 2 sendet. Sie wird nur von der Station 1 direkt empfangen. Es wird weiter angenommen, daß die Stationen 1 bis 9 nun im Abstand einiger Perioden in dieser Reihenfolge in Betrieb gehen. Zunächst erkennt die Station 1 die Zeitschlitze 1 sowie 3 bis 6 als frei und wählt beispielsweise den Zeitschlitz 1 als künftigen eigenen Sendezeitschlitz aus. Im Zeitschlitz 1 sendet die Station 1 auch eine Information über den als belegt erkannten Zeitschlitz 2 als relative Lage zum eigenen Zeitschlitz 1, z.B. als Zeitschlitzinkrement +1, da der zu meldende Zeitschlitz 2 ein Zeitschlitzinkrement später folgt. Eine gleichzeitige Meldung der Adresse der so empfangenen Station 31 ist vorteilhaft für eine Rückmeldung zu dieser zur Identifikation der Meldung des eigenen Zeitschlitzes. Die Nachricht erreicht entsprechend den Feldstärkeverhältnissen 23 die Stationen 3 bis 7 im Zeitschlitz 1, die daraufhin den Zeitschlitz 1 wegen des direkten Empfangs (E) und durch Addition der Meldung +1 den Zeitschlitz 2 indirekt als belegt (M) für mehrere Perioden überschreibend speichern, letzteres, um einerseits Einflüssen von Feldstärkeschwankungen zu begegnen und diese Nachricht auf mehrere Perioden verteilen zu können und um andererseits eine Aktualisierung nicht zu verhindern. Die letzte in Betrieb gehende Station 9 speichert wegen der Feldstärkeverhältnisse 25 die Zeitschlitze 3 bis 5 direkt (E) und den Zeitschlitz 1 indirekt (M) durch Belegtmeldung der Stationen 3 bis 7 als besetzt. Die Station 9 kann den freien Zeitschlitz 6, aber auch den bereits durch die Station 31 benutzten Zeitschlitz 2 als eigenen Sendezeitschlitz auswählen. Hier wird der Vorteil der freien Auswahl der Zeitschlitze bei Erfassung der wirklichen, feldstärkeabhängigen Verkettungen der Station deutlich: unnötige Sendezeitschlitze werden vermieden, sodaß praktisch alle Warnanlagen auf einem hochfrequenten Kanal betrieben werden können, auch wenn sie mit Nachbaranlagen zusammenstoßen. Ein sporadischer Zeitschlitzwechsel, angereizt z.B durch einen Zufallallgorithmus im Prozessor 55, ermöglicht problemloses Umsetzen der Stationen bei wandernden Baustellen, da dann auch der vorher selbst belegte Zeitschlitz der Station geprüft wird.In FIG . 3 shows the transmission and reception ratios in time slots (Z) 1 to 6 of a transmission period at
Der Prozessor 55 der Meldestation 5 kann durch entsprechende Informationen über den hochfrequenten Kanal die Prozessoren 55 der Meldestationen (1, 3, 7, 9) dazu anreizen, den Betrieb aufzunehmen oder einzustellen oder die Betriebsart zu wechseln, auch in Abhängigkeit einer Feldstärkemessung im Sende-/Empfangsteil 51, wobei dem Betrieb als Relaisstation bei schlechten Funkausbreitungen besondere Bedeutung zukommt. Eine solche Situation ist in FIG. 2 dargestellt. Eine Meldestation (11) übermittelt ihre Informationen über eine Relaisstation 9 an die Warnstation 5, indem der Prozessor 55 der Relaisstation 9 die empfangene Information im Speicher 61 zwischenspeichert und im nächsten eigenen Sendezeitschlitz zuzüglich einer die Zeit zwischen dem Empfangszeitschlitz und dem eigenen Sendezeitschlitz kennzeichnenden Information über den Verzug in der Relaisstation an die Warnstation 5 sendet, deren Prozessor 55 diese Verzugszeit von einer gespeicherten (59) maximal zulässigen Verzugszeit abzieht und zwischenspeichert (61) als die Zeit, bei deren Überschreitung infolge erfolglosem Empfang ab diesem Zeitpunkt Alarm (63) ausgelöst wird. Das Umsetzen der Stationen (1 bis 11) wird sicherheitstechnisch problemlos, wenn durch einstellbare Ortsadressen (67) der Prozessor 55 in der Warnstation 5 durch Vergleich mit den als Information empfangenen Ortsadressen anderer Stationen deren Entfernung und Richtung ermitteln kann und so mit im Speicher 59 vorgegebenen Mindestabstand zu ankündigenden Meldestationen (1, 11) prüfen kann. Der Prozessor 55 der Warnstation 5 kann in äquivalenter Weise bei umgesetzten Stationen deren neue Entfernung prüfen und die Betriebsarten entsprechend automatisch wählen. So kann z.B. bei Umsetzen der Warnstation 5 in die Position 5a die Relaisstation 9 in eine abmeldende Station aufgrund der neuen Verhältnisse durch die Warnstation 5 umgeschaltet werden.The
Claims (17)
- Procedure for warning persons in the vicinity of the track of approaching trains, whereby addressable, train-detecting reporting stations (1, 3, 7, 9, 31) installed at the track transmit status information signaling the presence of a train to an addressable warning station (5, 5a) capable of issuing alarm signals located in the working area of the persons by means of a high-frequency communication channel in time-division multiplex mode with same transmission period,
with the distinguishing feature
that the stations (1 to 9, 31) directly detect time slots of other stations in their reception range (21 to 25) occupied within the transmission period,
that the stations (1 to 9, 31) report the data concerning the position of other stations relative to their own transmission slot by means of the high-frequency communication channel, and
that the stations (1 to 9, 31) store information on directly detected other users' time slots and received other users' time slots reported relative to same according to their relative position in the period by overwriting during several consecutive periods and that every station determines future own time slots from the information on coincidental unoccupied time slots. - Procedure according to Claim 1 with the distinguishing feature
that the stations (1 to 9, 31) report the addresses of the received stations by means of the high-frequency communication channel, preferably in succession in consecutive transmission periods, and
that the own time slot is not stored as occupied if a message containing the own address is received. - Procedure according to one of the preceding Claims with the distinguishing feature that the reporting stations (1, 3, 7, 9) commence operation according to selective or group enable information via the associated warning station (5) or cease operation on the basis of disable information.
- Procedure according to one of the preceding Claims with the distinguishing feature that the reporting stations (1 to 9, 31) sporadically change the transmission time slot.
- Procedure according to one of the preceding Claims with the distinguishing feature
that the outside reporting stations (1, 9) announce approaching trains,
that the reporting stations (3, 7) adjacent to the warning station (5) announce departing trains,
that the warning station (5) triggers an alarm if approaching trains are announced or in the event of a communication link failure and cancels the alarm when the departure of trains is announced, and
that the reporting stations (3, 7) adjacent to the warning station (5) can transmit their data to the warning station by cables (69) as an alternative to high-frequency transmission. - Procedure according to one of the preceding Claims with the distinguishing feature
that, to bridge insufficient range capabilities, data from source stations (11) are transmitted via reporting stations (9) acting as relay stations to destination stations (5) by the relay stations (9) temporarily storing and subsequently sending the received message,
that a time data with the value 0 is optionally transmitted as well by the source station (11), that the time data is incremented by the duration of the delay in message transfer in the relay stations (9), preferably by the duration of the time increments corresponding to the time slots, and that the target station (5) decrements the maximum permissible delay of the next message to be received by this value according to the received time data. - Procedure according to one of the preceding Claims with the distinguishing feature
that the warning station (5) switches the reporting stations (1, 3, 7, 9, 11) to the train approach announcement, train departure announcement or relay mode as required, preferably on the basis of the field strength conditions, by way of control signals contained in the transmitted data, and that the period of grace for a communication link failure can be optionally longer for the train departure announcement than than for the train approach announcement. - Procedure according to one of the preceding Claims with the distinguishing feature
that the stations (1 to 11) have an adjustable local address identifying the installation site of each station, preferably a track distance marker in 0.1 km increments, which is appended to the transmitted data,
that the warning station (5) only accepts and enables those reporting stations (1, 9, 11) to announce approaching trains which are at a sufficient minimum distant from it to give a warning in good time, calculated on the basis of the difference between the local address of the reporting station and its own local address, and does not accept and disables from announcing trains those which are at an insufficient distance, and
that the warning station (5) accepts and enables reporting stations (3, 7) to announce departing trains which it has identified as adjacent stations on the basis of evaluating the local addresses. - Device for warning persons in the vicinity of the track of approaching trains, whereby addressable, train-detecting reporting stations (1, 3, 7, 9, 31) installed at the track transmit status information signaling the presence of a train to an addressable warning station (5, 5a) located in the working area of the persons by means of a high-frequency communication channel in time-division multiplex mode with same transmission period, whereby at least one station contains a processor (55) with computer peripherals (59, 61), a transmitter/receiver unit (51), modem and an antenna (53) by means of which the messages are transmitted at a high frequency,
with the distinguishing feature
that all stations (1 to 9, 31) have a processor, transmitter/receiver unit including modem (51) and an antenna (53),
that the processor (55) contained in the stations (1 to 9, 31) issues data to be transmitted to the transmitter/receiver unit (51) and obtains received data from said unit,
that additional peripherals, optionally comprising warning devices (63) that warn persons via the processor (55) or sensors (65) that detect trains and emit signals for further processing by the processor (55), are connected to the processor (55),
that an additional peripheral device, an address input (67), is provided for entering individual addresses and group and/or local addresses in the processor (55), and
that the processor (55) executes the following tasks in conjunction with all its peripherals (59 to 67):
direct detection of time slots of other stations (1 to 9, 31) in the reception range (21 to 25) of the own station occupied within the transmission period,
reporting of the data concerning the position of other stations relative to the own transmission slot by means of the high-frequency communication channel,
storage of information - overwriting during several consecutive periods - on directly detected other users' time slots and received other users' time slots reported relative to same according to their relative position in the period,
determination of future own time slots from the information on coincidental unoccupied time slots. - Device according to Claim 9 with the distinguishing feature that the processor (55), in conjunction with all its peripherals (59 to 67), in the reporting stations (1 to 9, 31), reports the addresses of the received stations by means of the high-frequency communication channel, preferably in succession in consecutive transmission periods, and does not store the own time slot as occupied if a message containing the own address is received.
- Device according to one of the Claims 9 or 10 with the distinguishing feature that the processor (55), in conjunction with all its peripherals (59 to 67), in the reporting stations (1, 3, 7, 9), commences operation of the station according to selective or group enable information via the associated warning station (5) or ceases operation on the basis of disable information.
- Device according to one of the Claims 9 to 11 with the distinguishing feature that the processor (55), in conjunction with all its peripherals (59 to 67), in the reporting stations (1 to 9, 31), sporadically changes the transmission time slot.
- Device according to one of the Claims 9 to 12 with the distinguishing feature that the processor (55), in conjunction with all its peripherals (59 to 67), in the outside reporting stations (1, 9), announces approaching trains
that the processor (55), in conjunction with all its peripherals (59 to 67), in the reporting stations (3, 7) adjacent to the warning station (5), announces departing trains,
that the processor (55), in conjunction with all its peripherals (59 to 67), in the warning station (5), triggers an alarm if approaching trains are announced or in the event of a communication link failure, and cancels the alarm when the departure of trains is announced, and
that the processor (55), in conjunction with all its peripherals (59 to 67), in the reporting stations (3, 7) adjacent to the warning station (5), can transmit data to the warning station (5) by cables (69) as an alternative to high-frequency transmission. - Device according to one of the Claims 9 to 13 with the distinguishing feature that the processor (55), in conjunction with all its peripherals (59 to 67), in reporting stations (9) acting as relay stations, transmits data from source stations (11) to destination stations (5) to bridge insufficient range capabilities by way of the computer temporarily storing and subsequently sending the received message, optionally transmits a time data with the value 0 from the source station (11) as well and increments the time data by the duration of the delay in message transfer in the relay stations (9), preferably by the duration of the time increments corresponding to the time slots,
and that the processor (55), in conjunction with all its peripherals (59 to 67), in the target station (5), decrements the maximum permissible delay of the next message to be received by this value according to the received time data. - Device according to one of the Claims 9 to 14 with the distinguishing feature that the stations (1 to 9, 13) have a field strength meter in the transmitter/receiver unit (51), and
that the processor (55), in conjunction with all its peripherals (59 to 67), in the warning station (5), switches the reporting stations (1, 3, 7, 9, 11) to the train approach announcement, train departure announcement or relay mode as required, preferably on the basis of the field strength conditions, by way of control signals contained in the transmitted data, and determines a period of grace for a communication link failure that is optionally longer for the train departure announcement than for the train approach announcement. - Device according to one of the Claims 9 to 15 with the distinguishing feature that the processor (55), in conjunction with all its peripherals (59 to 67), in the stations (1 to 11), can read in an adjustable local address identifying the installation site of each station, preferably a track distance marker in 0.1 km increments, which the processor appends to the transmitted data,
that the processor (55), in conjunction with all its peripherals (59 to 67), in the warning station (5), only accepts and enables those reporting stations (1, 9, 11) to announce approaching trains which are at a sufficient minimum distant from the warning station to give a warning in good time, calculated on the basis of the difference between the local address of the reporting station and its own local address, and does not accept and disables those from announcing trains which are at an insufficient distance, and
that the processor (55), in conjunction with all its peripherals (59 to 67), in the warning station (5), accepts and enables reporting stations (3, 7) to announce departing trains which it has identified as adjacent stations on the basis of evaluating the local addresses. - Device according to one of the Claims 9 to 16 with the distinguishing feature that the stations (1 to 11, 13) contain two circuit blocks (75, 77) each with the internal devices (55 to 69), that the circuit blocks (75, 77) are connected to the transmitter/receiver unit (51) by way of a cable, and that they coordinate an approximate synchronism of their processors (55) by means of acknowledgment signals via cables (71) that link the blocks and, in the event of excessive losses of synchronism, trigger an alarm by way of the high-frequency stage (51) and the warning devices (63).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4005354 | 1990-02-21 | ||
DE4005354A DE4005354A1 (en) | 1990-02-21 | 1990-02-21 | METHOD AND DEVICE FOR WARNING PERSONS IN THE TRACK AREA OVER A HIGH-FREQUENCY MESSAGE CHANNEL |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0443438A2 EP0443438A2 (en) | 1991-08-28 |
EP0443438A3 EP0443438A3 (en) | 1992-06-10 |
EP0443438B1 true EP0443438B1 (en) | 1995-01-04 |
Family
ID=6400597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91102081A Expired - Lifetime EP0443438B1 (en) | 1990-02-21 | 1991-02-14 | Method and device for warning persons in the track area via a high frequency communications channel |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0443438B1 (en) |
AT (1) | ATE116611T1 (en) |
DE (1) | DE4005354A1 (en) |
ES (1) | ES2067778T3 (en) |
Families Citing this family (7)
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 (en) * | 1994-07-22 | 1996-02-08 | Stein Gmbh | Method and device for warning people in the track area |
DE4425969C1 (en) * | 1994-07-22 | 1995-07-06 | Stein Gmbh | Warning system for persons in path of approaching train |
DE4428822C1 (en) | 1994-08-16 | 1996-04-25 | Stein Gmbh | Method and device for warning people in the track area |
DE19627681C1 (en) * | 1996-07-10 | 1997-07-24 | Stein Gmbh | Method of warning people in railway platforms |
ES2189584B1 (en) * | 2000-03-08 | 2004-11-16 | Lineas Y Cables, S.A. | RAILWAY CIRCULATION ARRIVAL NOTICE SYSTEM. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2211313C3 (en) * | 1972-03-09 | 1974-08-29 | Robert Bosch Elektronik Gmbh, 1000 Berlin Und 7000 Stuttgart | Method for wireless control of moving objects |
DE2818916C2 (en) * | 1978-04-28 | 1986-08-21 | Steuerungstechnik GmbH, 8000 München | Device for synchronizing several transmitting stations transmitting autonomously in time division multiplex mode |
BE894853A (en) * | 1982-04-28 | 1983-02-14 | Theimeg Elektronikgerate G M B | Synchronisation method of TDM autonomous transmitting stations - in which cycle time is dependent only on number of transmitters within range as determined by stored information |
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 |
-
1990
- 1990-02-21 DE DE4005354A patent/DE4005354A1/en active Granted
-
1991
- 1991-02-14 ES ES91102081T patent/ES2067778T3/en not_active Expired - Lifetime
- 1991-02-14 AT AT91102081T patent/ATE116611T1/en not_active IP Right Cessation
- 1991-02-14 EP EP91102081A patent/EP0443438B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0443438A2 (en) | 1991-08-28 |
EP0443438A3 (en) | 1992-06-10 |
DE4005354C2 (en) | 1992-01-09 |
ES2067778T3 (en) | 1995-04-01 |
DE4005354A1 (en) | 1991-08-22 |
ATE116611T1 (en) | 1995-01-15 |
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