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DE2518841B2 - Device for data exchange between a clock-controlled computer center and an interlocking in a railway traffic system - Google Patents

Device for data exchange between a clock-controlled computer center and an interlocking in a railway traffic system

Info

Publication number
DE2518841B2
DE2518841B2 DE19752518841 DE2518841A DE2518841B2 DE 2518841 B2 DE2518841 B2 DE 2518841B2 DE 19752518841 DE19752518841 DE 19752518841 DE 2518841 A DE2518841 A DE 2518841A DE 2518841 B2 DE2518841 B2 DE 2518841B2
Authority
DE
Germany
Prior art keywords
data
computer center
interlocking
clock
feedback
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.)
Ceased
Application number
DE19752518841
Other languages
German (de)
Other versions
DE2518841A1 (en
Inventor
Helmut Dipl.-Ing. 7000 Stuttgart Uebel
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.)
Alcatel Lucent Deutschland AG
Original Assignee
Standard Elektrik Lorenz 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 Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Priority to DE19752518841 priority Critical patent/DE2518841B2/en
Priority to CA250,780A priority patent/CA1059602A/en
Priority to CH523876A priority patent/CH598046A5/xx
Publication of DE2518841A1 publication Critical patent/DE2518841A1/en
Publication of DE2518841B2 publication Critical patent/DE2518841B2/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
    • B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
    • B61L7/08—Circuitry
    • B61L7/088—Common line wire control using series of coded pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Communication Control (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Description

Der Taktgeber des Datensenders DS arbeitet mit der gleichen Frequenz /wie der Taktgeber der Rechnerzentrale RZ, und gibt mit diesem Takt seine Rückmeldedaten ab. Die Erfindung benutzt nun den aus den Befehlsdaten gewonnenen Synchronisationsimpuls ρ zur Steuerung der Abgabe der Rückmeldedaten durch den Datensender DS, und zwar so, daß ein abgesendeter Datenblock im genau gleichen Zeitpunkt beginnt, in Bern ein Datenblock ankommt. Damit muß bei einwandfreier Funktion der ÜbertragungseinrichtungenThe clock of the data transmitter DS works with the same frequency / as the clock of the computer center RZ, and gives its feedback data with this clock. The invention now uses the synchronization pulse ρ obtained from the command data to control the delivery of the feedback data by the data transmitter DS in such a way that a transmitted data block begins at exactly the same point in time as a data block arrives in Bern. This means that the transmission equipment must function properly

/nach Absenden eines Befehlsdatenwortes genau nach der 2fachen Übertragungsdauer ein Rückmeldedatenwort in der Rechenzentrale RZ eintreffen, womit der gewünschte zeitliche Bezug hergestellt ist. Dieses Verfahren erlaubt auch eine Überwachung der Übertragungseinrichtungen, da z.B. bei Ausfall der Leitung ^. kein Synchronisationsimpuls ρ gewonnen wird, was siclj im umregelmäßigen Eintreffen von Rfickmeldedaten in der Rechnerzentrale ÄZauswirkt, was diese bemerkt/ after a command data word has been sent, a feedback data word arrives in the computer center RZ exactly after twice the transmission time, which establishes the desired time reference. This method also allows the transmission facilities to be monitored, since, for example, if the line fails, ^. no synchronization pulse ρ is obtained, which siclj in the irregular arrival of Rfickmeldedaten in the computer center ÄZ, which notices it

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: Einrichtung zum Datenaustausch zwischen einer taktgesteuerten Rechnerzentrale und einem Stellwerk in einem Eisenbahnverkehrssystem, wobei das Stellwerk über einen Datensender mit eigenem Taktgeber und einen Datenempfänger verfügt und wobei der Datenaustausch in der Übermittlung von Befehlsdatenworten der Rechnerzentrale an das Stellwerk und in der Rückmeldung von Stellungen von Fahrwegelementen mittels Rückmeldedatenworten durch das Stellwerk an die Rechnerzentrale besteht, dadurch gekennzeichnet, daß der Datenempiänger (DE) so ausgebildet ist, daß aus Synchronisierungsbits zu Beginn eines ankommenden Befehlsdatenwortes ein Synchronisationsimpuls (p) abgeleitet wird und daß der Datensender (DS) dazu eingerichtet ist, abhängig von dem ihm zugeführten Synchronisationsimpuls (p) die Absendung eines Rückmeldedatenwortes zu steuern.Device for data exchange between a clock-controlled computer center and an interlocking in a railway traffic system, the interlocking having a data transmitter with its own clock and a data receiver and the data exchange in the transmission of command data words from the computer center to the interlocking and in the feedback of positions of track elements by means of There is feedback data words through the interlocking to the computer center, characterized in that the data receiver (DE) is designed so that a synchronization pulse (p) is derived from synchronization bits at the beginning of an incoming command data word and that the data transmitter (DS) is set up, depending on to control the sending of a feedback data word to the synchronization pulse (p) supplied to it. Die Erfindung bezieht sich auf eine Einrichtung ι gemäß dem Oberbegriff des Patentanspruches.
.' - Die Rechnerzentrale arbeitet mit einem bestimmten Takt; daraus ergibt sich die Forderung, daß. die Rückmeldungen des Stellwerks synchron zu diesem ). Takt in der Rechnerzentrale eintreffen müssen, oder ^.zumindest einen festen zeitlichen Bezug zu diesem haben müssen.The invention relates to a device according to the preamble of claim.
. ' - The computer center works with a certain cycle; this results in the requirement that. the feedback from the interlocking synchronous to it ) . Clock must arrive in the computer center, or ^. At least must have a fixed time reference to this. Die Lösung dieses Problems stellt sich die Erfindung -'.'zur Aufgabe. Sie geht dabei davon aus, daß die . Dateneinrichtungen des Stellwerks einen Datensender <; und einen Datenempfänger beinhalten, wobei der ' Datensender über einen eignen Taktgeber verfügt, der " auf den Takt der Rechnerzentrale eingestellt ist.
; Von diesen Voraussetzungen ausgehend, löst die Erfindung die gestellte Aufgabe dadurch, daß der Datenempfänger so ausgebildet ist, daß aus .Synchronisierungsbits zu Beginn eines ankommenden Befehlsdatenwortes ein Synchronisationsimpuls abgeleitet wird und daß der Datensender dazu eingerichtet ist, abhängig von dem ihm zugeführten Synchronisationsimpuls die Absendung eines RUckmeldedatenwortes zu steuern.
Infolge der damit erreichten festen zeitlichen Zuordnung ist es der Rechnerzentrale möglich, die Datenübertragungseinrichtungen auf einwandfreie Funktion zu überwachen.The solution to this problem is set by the invention - '.' As its task. It assumes that the. Data equipment of the interlocking a data transmitter <; and contain a data receiver, the data transmitter having its own clock which is set to the clock of the computer center.
; Based on these requirements, the invention solves the problem in that the data receiver is designed so that a synchronization pulse is derived from .Synchronisierungsbits at the beginning of an incoming command data word and that the data transmitter is set up to send a depending on the synchronization pulse supplied to it To control feedback data word.
As a result of the fixed time allocation achieved in this way, it is possible for the computer center to monitor the data transmission devices for proper function. Die Erfindung wird nun anhand der Zeichnung erläutert, Die Zeichnung zeigt ein Blockschaltbild einer Anlage, von der die Erfindung ausgeht.The invention will now be explained with reference to the drawing. The drawing shows a block diagram of a Plant from which the invention is based. Die Rechnerzentrale ÄZgibt ihre Befehle über eine Leitung 1 an den Empfänger DE des Stellwerks STW. Die Rückmeldungen werden vom Datensender Z?5über ίο eine Leitung 2 zur Rechnerzentrale zurückgegeben.The computer center ÄZ gives its commands via a line 1 to the receiver DE of the interlocking STW. The feedback is returned from the data transmitter Z? 5 via ίο a line 2 to the computer center. Im einzelnen bestimmt der Takt der Rechnerzentrale die Abgabe von Befehlsdaten, die z. B. als Datenworte mit je 13 Bits realisiert sind. Diese werden seriell übertragen, was eine Serien-Parallelvvandlung im Stellwerk STW erforderlich macht. Der Datenempfänger DE muß daher den Anfang eines Datenwortes und der Bits erkennen können, ersteres wird durch Synchronisationsbits und Codesicherungsbits erreicht, letzteres durch Auswertung des 0-1 Sprungs zwischen zwei verschiedenen Bitwerten. Durch die Information .»Datenwortanfang« erhält der Datenempfänger eine ^Information über den Takt der Rechnerzentrale. Die Information »Datenwortanfang« wird daher als Synchronisationsimpuls P dem Datensender DS zugeleitet. 25"ÖZwischen der Zeit Γ des Auftretens des Taktimpulses t der Rechnerzentrale und der des Synchrcnisationsimpulses ρ besteht dann die feste Beziehung:In detail, the clock of the computer center determines the delivery of command data that z. B. are implemented as data words with 13 bits each. These are transmitted in series, which makes a series parallel conversion necessary in the STW interlocking. The data receiver DE must therefore be able to recognize the beginning of a data word and the bits, the former is achieved by synchronization bits and code security bits, the latter by evaluating the 0-1 jump between two different bit values. With the information "beginning of data word" the data receiver receives ^ information about the clock rate of the computer center. The information "data word start" is therefore sent as a synchronization pulse P to the data transmitter DS . 25 "Öbetween the time Γ of the occurrence of the clock pulse t of the computer center and that of the synchronization pulse ρ there is then the fixed relationship: T(p)= T(t)+ Übertragungsdauer. T (p) = T (t) + transmission time.
DE19752518841 1975-04-28 1975-04-28 Device for data exchange between a clock-controlled computer center and an interlocking in a railway traffic system Ceased DE2518841B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19752518841 DE2518841B2 (en) 1975-04-28 1975-04-28 Device for data exchange between a clock-controlled computer center and an interlocking in a railway traffic system
CA250,780A CA1059602A (en) 1975-04-28 1976-04-22 Method for data exchange between a clock-controlled computer centre and an interlocking station in a railway system
CH523876A CH598046A5 (en) 1975-04-28 1976-04-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752518841 DE2518841B2 (en) 1975-04-28 1975-04-28 Device for data exchange between a clock-controlled computer center and an interlocking in a railway traffic system

Publications (2)

Publication Number Publication Date
DE2518841A1 DE2518841A1 (en) 1976-11-11
DE2518841B2 true DE2518841B2 (en) 1980-02-28

Family

ID=5945196

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752518841 Ceased DE2518841B2 (en) 1975-04-28 1975-04-28 Device for data exchange between a clock-controlled computer center and an interlocking in a railway traffic system

Country Status (3)

Country Link
CA (1) CA1059602A (en)
CH (1) CH598046A5 (en)
DE (1) DE2518841B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2726889C2 (en) * 1977-06-15 1987-03-26 Standard Elektrik Lorenz Ag, 7000 Stuttgart Device for receiving data in automatically controlled vehicles with non-redundant data receiver
DE3241161C2 (en) * 1981-11-09 1994-11-17 Canon Kk Data transmission system

Also Published As

Publication number Publication date
DE2518841A1 (en) 1976-11-11
CH598046A5 (en) 1978-04-28
CA1059602A (en) 1979-07-31

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Legal Events

Date Code Title Description
8235 Patent refused