EP0535764A2 - System for transferring date represented in a balanced code to a telegram memory module - Google Patents

System for transferring date represented in a balanced code to a telegram memory module Download PDF

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Publication number
EP0535764A2
EP0535764A2 EP92250212A EP92250212A EP0535764A2 EP 0535764 A2 EP0535764 A2 EP 0535764A2 EP 92250212 A EP92250212 A EP 92250212A EP 92250212 A EP92250212 A EP 92250212A EP 0535764 A2 EP0535764 A2 EP 0535764A2
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EP
European Patent Office
Prior art keywords
telegram
code
memory module
date
telegrams
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Withdrawn
Application number
EP92250212A
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German (de)
French (fr)
Other versions
EP0535764A3 (en
Inventor
Reinhard Niewerth
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Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0535764A2 publication Critical patent/EP0535764A2/en
Publication of EP0535764A3 publication Critical patent/EP0535764A3/en
Withdrawn legal-status Critical Current

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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
    • B61L7/067—Supply for electric safety arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L21/00—Station blocking between signal boxes in one yard
    • B61L21/08—Order transmission and reception arrangements for giving or withholding permission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/121—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using magnetic induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/126—Constructional details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/121—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using magnetic induction
    • B61L2003/123—French standard for inductive train protection, called "Contrôle de vitesse par balises" [KVB]

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • a device is known from DE 30 46 201 C2. It reports on a device for point-by-point information transmission from the route to railway vehicles, with the help of which information such as signal states, target and limit speeds, slipping paths, route inclinations, etc. in the form of telegrams can be transmitted to stationary vehicles on passing vehicles.
  • there are generally signals or e.g. So-called track coupling coils are arranged in front of slow travel points, which receive inductive energy from the train coupling coils of passing vehicles and then also inductively send a serial data stream to the train coupling coil.
  • the information of this serial data stream is taken from two telegram memory modules; the selection of the information to be transmitted is made by a selection control in accordance with e.g. a signal term connected to a light signal.
  • Each telegram memory module contains a telegram memory module; the corresponding telegrams in the two telegram memory modules differ only in a single bit, so that it can be seen on the vehicle that telegram data have been received from both the one and from the other telegram memory module, ie two channels were transmitted. Up to 64 different telegrams, each with a maximum length of 512 telegram steps, can be stored in each telegram memory module.
  • the telegram memory modules are housed in the connection area of the associated track coupling coil together with a transmitter control module, which supplies the memory modules with read cycles and releases them alternately for the duration of a telegram.
  • the serial telegram data emitted by the memory modules are converted into a frequency-modulated data stream by the transmitter control module, amplified in a transmitter module and fed into the transmitter antenna of the track coupling coil.
  • Each telegram memory module has a certain number of so-called telegram select inputs for the selection of the telegram to be transmitted, which are controlled by the selection control with an equal code, for example a 2 out of 5 or a 2 out of 6 code .
  • an equal code for example a 2 out of 5 or a 2 out of 6 code.
  • the selection control is e.g. in the transmission of telegrams determined by light signal terms, represented by a signal module at the foot of the respective signal mast, which converts the respective signal term into the equilibrium code used to control the telegram memory modules.
  • a central component of every telegram memory module is a sequential control system and an EPROM as telegram memory.
  • the sequential control system receives a clock and an enable signal from a transmitter module: with the start of an active enable signal, the sequential control system ensures that the telegram select signals currently present, for example from a signal module, are temporarily stored in two registers connected in parallel on the input side.
  • the output signals of these buffers control a telegram memory module, for example via six address inputs each, and thus select an address block under which the telegram to be output is stored in the telegram memory.
  • the sequence control generates the while the telegram is being output required EPROM control signals and increments the EPROM address after each output of a telegram step.
  • the telegram select signals transferred to the register remain unchanged for the duration of the subsequent telegram output. Since the output signals of a signal module change completely asynchronously to the enable signal of the transmitter control module of a track device, transition states between two outputs of the signal module can also be temporarily stored in the two registers. This means that in a transition phase a mixture of bits that have not been changed and bits that have already been changed can be stored, which may represent a valid, but unwanted, equilibrium code and can therefore lead to the selection of undesired incorrect messages from the message memories.
  • the object of the invention is to design the device designed according to the preamble of claim 1 in such a way that such undesirable mixtures between old and new control instructions are avoided.
  • the invention solves this task in the aforementioned device by applying the characterizing features of claim 1.
  • Advantageous refinements of the device according to the invention are specified in the subclaims.
  • FIG. 1 schematically shows a light signal LS with a signal module SBG housed in a switch box on the signal mast or in the vicinity thereof, which can be controlled via control lines L from an interlocking, not shown, for connecting different signal terms.
  • an identifier is removed from the signal concept that is switched on and fed to an adjacent track coupling coil GKS.
  • This track coupling coil is used in a known manner to transmit information in the form of time-multiplexed or frequency-multiplexed coded telegrams to vehicles passing on a rail S and, if necessary, to record telegrams transmitted from there and in a manner not shown to an evaluation point, e.g. the signal box to pass on.
  • the energy required for the transmission of telegrams to passing vehicles is taken by the track coupling coil GKS from the coupling coil of passing vehicles on the vehicle side or else it receives this energy from the signal module of the light signal or from another local or distant voltage source.
  • the switching means required for the operation of the track coupling coil are accommodated in a connection space A articulated on the track coupling coil. Their interaction results from the diagram in FIG. 2.
  • Two intermediate memories ZSp1, ZSp2, which are connected in parallel on the input side, are shown there and can be set in accordance with the telegram to be transmitted in each case by the signal module of the associated light signal via telegram select lines Si 0 to Si 5.
  • the respective date to be transferred is offered to the buffer stores in the form of an equal code, in the present case in the form of a 2 out of 6 code.
  • the adopted date designates the address of an address block within the downstream of the two buffers Telegram memory block in which the telegram currently to be output is stored.
  • the transfer of the date present via the telegram selective inputs to the respective buffer is carried out under the control of clock and enable signals, which are fed to the buffer concerned by a transmission controller SSt.
  • Downstream of the buffers are the two telegram memories TSp 1 and TSp 2 of the associated telegram memory module.
  • the output signals of the buffer memory control six address inputs in the EPROMs of the two telegram memory modules.
  • the transmitter S Via the transmission control SSt, the transmitter S is activated to alternately output the telegram taken from one and the other telegram memory.
  • the telegram is transmitted via the antenna of the associated track coupling coil.
  • the current status of the telegram select signals is buffered in the buffer memory each time a release signal begins and is kept unchanged for the duration of the subsequent telegram output. Since the output signals of the signal module change independently of the release signal of the transmitter control module, transition states between two outputs of the signal module can also be stored in the buffer each time the telegram changes. At least when the intermediate state corresponds to a valid select code, this leads to the retrieval of telegrams from the telegram memory modules that do not correspond to the actual conditions on the light signal. This relationship is illustrated in more detail in FIG. 3. The diagram shown there shows the signal state on the telegram select lines Si 0 to Si 5 (FIG. 2) leading to an intermediate memory, in each case at successive times.
  • the first four telegram select lines are at high level, while lines five and six are at low level.
  • the second and third telegram select lines are set to low level and the remaining telegram select lines to high level.
  • the new code is transferred to the buffer in the period T1 / 2.
  • the sixth telegram select line should first be set to high level, then the third select line to low level.
  • the second select line then changes to low level and the fifth select line to H level.
  • the buffer is offered code combinations that temporarily do not meet the conditions of the agreed equilibrium code, but rather meet the conditions of a 1 or a 3 out of 6 codes. These tax constellations can be disabled by a code check. In the meantime, however, he is also offered a valid 2 out of 6 code.
  • this date which is formed from two different combinations of select control signals and meets the agreed code conditions, can be stored in the buffer and thus faulty telegrams can be output.
  • the device avoids this by temporarily outputting an intermediate code each time a telegram is changed, which modifies the date previously output so that it becomes a date which does not meet the agreed conditions of the equilibrium code, care being taken to ensure that possible intermediate states are also provided between this new date and the original date also does not meet the agreed code requirements.
  • the selection controller outputs an intermediate code for a predetermined period of time, which has at least one further active bit in addition to the previously active bits or in which at least one of the active bits has changed its value.
  • This intermediate code turns out to be special simple if it is formed by an n from n code or a 0 from n code; n denotes the number of bits of the balanced code.
  • the intermediate code must be present as long as the selection control needs to provide a new date at its outputs and in particular as long as the intermediate memories need to prepare for the adoption of a date. If there are other times influencing the adoption of a date, e.g. Given data transmission times, their duration must also be offset by the duration of the intermediate code.
  • the intermediate code can also be designed as an n out of n code instead of a 0 out of n code. In this case as well, by mixing any date with the intermediate code, it is not possible to form a date that is not recognizable as incorrect, which is to call up an incorrect message from the message memories could lead.
  • intermediate codes there are any number of other intermediate codes, each of which can be formed by modifying the date effective before a telegram change.
  • Such an intermediate code can e.g. in addition to the two active bits of a code of equal weight contain an additional third active bit or are formed by changing the value of at least one of the active bits. It is also possible to mix the old with the new date, in which case e.g. a 2 out of 6 code temporarily becomes a 4 out of 6 code. Even in the transition phases between old code, intermediate code and new code, there is no date that meets the agreed conditions of the equilibrium 2 out of 6 codes.
  • the active bits of the balanced code can be both low-active and high-active.
  • the device according to the invention is not limited to use with light signals for controlling track coupling coils, but can advantageously be used wherever track coupling coils are required to transmit different information to passing vehicles. It is also not limited to use in train control systems; wherever the mixing of old and new control instructions can temporarily generate control information that is incorrect, but not necessarily recognizable as incorrect, the invention creates a possibility of masking out these incorrect control instructions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

Each time a telegram change occurs a telegram selection control temporarily outputs for example a 0 from n-code. By means of this measure, it is ensured that, in the most unfavourable case, as a result of a first piece of data being combined with any second piece of data which selects telegrams, data which do not satisfy the specified code conditions are transferred into a buffer which calls up the telegrams from a telegram memory. For this reason, it is also impossible for incorrect telegrams to be called up from the telegram memory in this phase, which would otherwise be perfectly possible as a result of mixing of the first and of the second data items. The device is provided for the control of intermittent train control devices for railways. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Einrichtung nach dem Oberbegriff des Anspruches 1. Eine derartige Einrichtung ist aus der DE 30 46 201 C2 bekannt. Dort wird über eine Einrichtung zur punktweisen Informationsübertragung von der Strecke auf Eisenbahnfahrzeuge berichtet, mit deren Hilfe Informationen wie Signalzustände, Ziel- und Grenzgeschwindigkeiten, Durchrutschwege, Streckenneigungen usw. in Form von Telegrammen an ortsfesten Übertragungseinrichtungen auf vorüberfahrende Fahrzeuge übertragen werden können. Dazu sind an der Strecke im allgemeinen in der Nähe von Signalen oder z.B. vor Langsamfahrstellen sogenannte Gleiskoppelspulen angeordnet, die von den Zugkoppelspulen vorüberfahrender Fahrzeuge induktiv Energie übertragen bekommen und dann ebenfalls induktiv einen seriellen Datenstrom zur Zugkoppelspule senden. Die Information dieses seriellen Datenstromes wird zwei Telegramm-Speicher-Bausteinen entnommen; die Auswahl der jeweils zu übermittelnden Information trifft eine Auswahlsteuerung nach Maßgabe z.B. eines an einem Lichtsignal angeschalteten Signalbegriffes.The invention relates to a device according to the preamble of claim 1. Such a device is known from DE 30 46 201 C2. It reports on a device for point-by-point information transmission from the route to railway vehicles, with the help of which information such as signal states, target and limit speeds, slipping paths, route inclinations, etc. in the form of telegrams can be transmitted to stationary vehicles on passing vehicles. For this purpose, there are generally signals or e.g. So-called track coupling coils are arranged in front of slow travel points, which receive inductive energy from the train coupling coils of passing vehicles and then also inductively send a serial data stream to the train coupling coil. The information of this serial data stream is taken from two telegram memory modules; the selection of the information to be transmitted is made by a selection control in accordance with e.g. a signal term connected to a light signal.

Jeder Telegramm-Speicher-Baustein beinhaltet eine Telegramm-Speicher-Baugruppe; die einander entsprechenden Telegramme in den beiden Telegramm-Speicher-Baugruppen unterscheiden sich lediglich in einem einzigen Bit, damit auf dem Fahrzeug erkannt werden kann, daß Telegrammdaten sowohl aus der einen als auch aus der anderen Telegramm-Speicher-Baugruppe empfangen worden sind, d.h. zweikanalig übermittelt wurden. In jeder Telegramm-Speicher-Baugruppe können z.B. bis zu 64 verschiedene Telegramme mit je einer maximalen Länge von 512 Telegrammschritten hinterlegt sein.Each telegram memory module contains a telegram memory module; the corresponding telegrams in the two telegram memory modules differ only in a single bit, so that it can be seen on the vehicle that telegram data have been received from both the one and from the other telegram memory module, ie two channels were transmitted. Up to 64 different telegrams, each with a maximum length of 512 telegram steps, can be stored in each telegram memory module.

Die Telegramm-Speicher-Bausteine sind im Anschlußraum der zugehörigen Gleiskoppelspule zusammen mit einem Sender-Steuer-Baustein untergebracht, der die Speicher-Baugruppen mit Auslesetakten versorgt und sie wechselweise jeweils für die Dauer eines Telegrammes freigibt. Die von den Speicher-Baugruppen abgegebenen seriellen Telegrammdaten werden vom Sender-Steuer-Baustein in einen frequenzmodulierten Datenstrom umgeformt, in einer Sende-Baugruppe verstärkt und in die Sendeantenne der Gleiskoppelspule einspeist.The telegram memory modules are housed in the connection area of the associated track coupling coil together with a transmitter control module, which supplies the memory modules with read cycles and releases them alternately for the duration of a telegram. The serial telegram data emitted by the memory modules are converted into a frequency-modulated data stream by the transmitter control module, amplified in a transmitter module and fed into the transmitter antenna of the track coupling coil.

Jede Telegramm-Speicher-Baugruppe weist zur Auswahl des jeweils zu übertragenden Telegrammes eine bestimmte Anzahl von sogenannten Telegramm-Selekt-Eingängen auf, die von der Auswahlsteuerung mit einem gleichgewichtigen Code, beispielsweise einem 2 aus 5- oder einem 2 aus 6-Code angesteuert werden. Bei Verwendung eines 2 aus 6-Codes können bis zu 15 unterschiedliche Informationen übertragen werden. Die Auswahlsteuerung wird z.B. bei der Übertragung von durch Lichtsignalbegriffe bestimmten Telegrammen durch eine Signalbaugruppe am Fuß des jeweiligen Signalmastes repräsentiert, die den jeweiligen Signalbegriff umformt in den zur Steuerung der Telegramm-Speicher-Baugruppen verwendeten gleichgewichtigen Code.Each telegram memory module has a certain number of so-called telegram select inputs for the selection of the telegram to be transmitted, which are controlled by the selection control with an equal code, for example a 2 out of 5 or a 2 out of 6 code . When using a 2 out of 6 code, up to 15 different pieces of information can be transmitted. The selection control is e.g. in the transmission of telegrams determined by light signal terms, represented by a signal module at the foot of the respective signal mast, which converts the respective signal term into the equilibrium code used to control the telegram memory modules.

Zentraler Bestandteil jeder Telegramm-Speicher-Baugruppe sind eine Ablaufsteuerung und ein EPROM als Telegramm-Speicher. Die Ablaufsteuerung erhält als wichtigste Eingangssignale ein Takt- und ein Freigabesignal von einem Sender-Baustein: mit dem Beginn eines aktiven Freigabesignals sorgt die Ablaufsteuerung dafür, daß die momentan z.B. von einer Signalbaugruppe anliegenden Telegramm-Selekt-Signale in zwei eingangsseitig parallelgeschalteten Registern zwischengespeichert werden. Die Ausgangssignale dieser Zwischenspeicher steuern über z.B. je sechs Adresseingänge eine Telegramm-Speicher-Baugruppe an und wählen damit einen Adreßblock aus, unter dem das jeweils auszugebende Telegramm im Telegramm-Speicher hinterlegt ist. Während der Telegrammausgabe erzeugt die Ablaufsteuerung die erforderlichen EPROM-Steuersignale und inkrementiert nach jeder Ausgabe eines Telegrammschrittes die EPROM-Adresse. Die in das Register übernommenen Telegramm-Selektsignale bleiben für die Dauer der folgenden Telegrammausgabe unverändert. Da sich die Ausgangssignale einer Signalbaugruppe völlig asynchron zum Freigabesignal des Sender-Steuer-Bausteins eines Gleisgerätes ändern, können in den beiden Registern vorübergehend auch Übergangszustände zwischen zwei Ausgaben der Signalbaugruppe eingespeichert werden. Damit besteht die Möglichkeit, daß in einer Übergangsphase eine Mischung aus noch unveränderten und bereits gewechselten Bits eingespeichert werden, die gegebenenfalls einen gültigen, aber ungewollten gleichgewichtigen Code darstellen können und damit zur Auswahl nicht erwünschter falscher Telegramme aus den Telegrammspeichern führen können.A central component of every telegram memory module is a sequential control system and an EPROM as telegram memory. As the most important input signals, the sequential control system receives a clock and an enable signal from a transmitter module: with the start of an active enable signal, the sequential control system ensures that the telegram select signals currently present, for example from a signal module, are temporarily stored in two registers connected in parallel on the input side. The output signals of these buffers control a telegram memory module, for example via six address inputs each, and thus select an address block under which the telegram to be output is stored in the telegram memory. The sequence control generates the while the telegram is being output required EPROM control signals and increments the EPROM address after each output of a telegram step. The telegram select signals transferred to the register remain unchanged for the duration of the subsequent telegram output. Since the output signals of a signal module change completely asynchronously to the enable signal of the transmitter control module of a track device, transition states between two outputs of the signal module can also be temporarily stored in the two registers. This means that in a transition phase a mixture of bits that have not been changed and bits that have already been changed can be stored, which may represent a valid, but unwanted, equilibrium code and can therefore lead to the selection of undesired incorrect messages from the message memories.

Aufgabe der Erfindung ist es, die nach dem Oberbegriff des Anspruches 1 ausgebildete Einrichtung so auszugestalten, daß derartige unerwünschte Mischungen zwischen alten und neuen Steueranweisungen vermieden werden.The object of the invention is to design the device designed according to the preamble of claim 1 in such a way that such undesirable mixtures between old and new control instructions are avoided.

Die Erfindung löst diese Aufabe bei der vorgenannten Einrichtung durch die Anwendung der kennzeichnenden Merkmale des Anspruches 1. Vorteilhafte Ausgestaltungen der erfindungsgemäßen Einrichtung sind in den Unteransprüchen angegeben.The invention solves this task in the aforementioned device by applying the characterizing features of claim 1. Advantageous refinements of the device according to the invention are specified in the subclaims.

Die Erfindung ist nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert. Die Zeichnung zeigt

in Figur 1
schematisch eine Einrichtung zur Informationsübertragung von der Strecke auf ein vorüberlaufendes Fahrzeug,
in Figur 2
ein Blockschaltbild, anhand dessen die Auswahlprozedur und die Ausgabe eines Telegrammes an den Sender einer Gleiskoppelspule erläutert ist und
in den Figuren 3 und 4
zwei Darstellungen von nacheinander an den Selekteingängen eines Zwischenspeichers anliegenden Selektsignalen.
The invention is explained below with reference to an embodiment shown in the drawing. The drawing shows
in Figure 1
schematically a device for information transfer from the route to a passing vehicle,
in Figure 2
a block diagram on the basis of which the selection procedure and the output of a telegram to the transmitter of a track coupling coil is explained and
in Figures 3 and 4
two representations of one after the other Select signals present at the selective inputs of a buffer.

Figur 1 zeigt schematisch ein Lichtsignal LS mit einer in einem Schaltkasten am Signalmast oder in dessen Nähe untergebrachten Signalbaugruppe SBG, die über Steuerleitungen L von einem nicht dargestellten Stellwerk aus zur Anschaltung unterschiedlicher Signalbegriffe ansteuerbar ist. An dieser Signalbaugruppe wird ein Kennzeichen über den jeweils angeschalteten Signalbegriff entnommen und einer benachbarten Gleiskoppelspule GKS zugeführt. Diese Gleiskoppelspule dient in bekannter Weise dazu, Informationen in Form von zeitmultiplex oder frequenzmultiplex codierten Telegrammen an auf einer Fahrschiene S vorbeifahrende Fahrzeuge zu übermitteln und gegebenenfalls von dort übermittelte Telegramme aufzunehmen und auf nicht dargestellte Weise an eine Auswertestelle, z.B. das Stellwerk, weiterzugeben. Die für die Übertragung von Telegrammen an vorüberlaufende Fahrzeuge erforderliche Energie entnimmt die Gleiskoppelspule GKS der fahrzeugseitigen Koppelspule vorüberlaufender Fahrzeuge oder aber sie erhält diese Energie aus der Signalbaugruppe des Lichtsignals oder aus einer anderen örtlichen oder entfernten Spannungsquelle. Die für den Betrieb der Gleiskoppelspule erforderlichen Schaltmittel sind in einem an die Gleiskoppelspule angelenkten Anschlußraum A untergebracht. Ihr Zusammenwirken ergibt sich aus dem Schaubild der Figur 2.FIG. 1 schematically shows a light signal LS with a signal module SBG housed in a switch box on the signal mast or in the vicinity thereof, which can be controlled via control lines L from an interlocking, not shown, for connecting different signal terms. On this signal module, an identifier is removed from the signal concept that is switched on and fed to an adjacent track coupling coil GKS. This track coupling coil is used in a known manner to transmit information in the form of time-multiplexed or frequency-multiplexed coded telegrams to vehicles passing on a rail S and, if necessary, to record telegrams transmitted from there and in a manner not shown to an evaluation point, e.g. the signal box to pass on. The energy required for the transmission of telegrams to passing vehicles is taken by the track coupling coil GKS from the coupling coil of passing vehicles on the vehicle side or else it receives this energy from the signal module of the light signal or from another local or distant voltage source. The switching means required for the operation of the track coupling coil are accommodated in a connection space A articulated on the track coupling coil. Their interaction results from the diagram in FIG. 2.

Dort sind zwei eingangsseitig parallelgeschaltete Zwischenspeicher ZSp1, ZSp2 dargestellt, die entsprechend dem jeweils zu übermittelnden Telegramm von der Signalbaugruppe des zugehörigen Lichtsignals über Telegramm-Selektleitungen Si 0 bis Si 5 einstellbar sind. Das jeweils zu übernehmende Datum wird den Zwischenspeichern in Form eines gleichgewichtigen Codes angeboten, im vorliegenden Fall in Form eines 2 aus 6-Codes. Das übernommene Datum bezeichnet die Adresse eines Adreßblocks innerhalb des den beiden Zwischenspeichern jeweils nachgeschalteten Telegramm-Speicher-Bausteins, in dem das momentan auszugegebende Telegramm hinterlegt ist. Die Übernahme des über die Telegramm-Selekteingänge anliegenden Datums in den jeweiligen Zwischenspeicher geschieht unter Steuerung von Takt- und Freigabesignalen, die dem betreffenden Zwischenspeicher von einer Sendesteuerung SSt zugeführt werden. Den Zwischenspeichern nachgeschaltet sind die beiden Telegrammspeicher TSp 1 und TSp 2 des jeweils zugehörigen Telegramm-Speicher-Bausteins. Die Ausgangssignale der Zwischenspeicher steuern sechs Adresseingänge in den EPROMs der beiden Telegrammspeicherbaugruppen an. Über die Sendesteuerung SSt wird der Sender S zur wechselweisen Ausgabe des aus dem einen und dem anderen Telegramm-Speicher entnommenen Telegrammes wirksam geschaltet. Die Telegrammübertragung erfolgt über die Antenne der zugehörigen Gleiskoppelspule.Two intermediate memories ZSp1, ZSp2, which are connected in parallel on the input side, are shown there and can be set in accordance with the telegram to be transmitted in each case by the signal module of the associated light signal via telegram select lines Si 0 to Si 5. The respective date to be transferred is offered to the buffer stores in the form of an equal code, in the present case in the form of a 2 out of 6 code. The adopted date designates the address of an address block within the downstream of the two buffers Telegram memory block in which the telegram currently to be output is stored. The transfer of the date present via the telegram selective inputs to the respective buffer is carried out under the control of clock and enable signals, which are fed to the buffer concerned by a transmission controller SSt. Downstream of the buffers are the two telegram memories TSp 1 and TSp 2 of the associated telegram memory module. The output signals of the buffer memory control six address inputs in the EPROMs of the two telegram memory modules. Via the transmission control SSt, the transmitter S is activated to alternately output the telegram taken from one and the other telegram memory. The telegram is transmitted via the antenna of the associated track coupling coil.

Der momentan anliegende Zustand der Telegramm-Selektsignale wird mit jedem Beginn eines Freigabesignals in den Zwischenspeichern zwischengespeichert und für die Dauer der folgenden Telegrammausgabe unverändert gehalten. Da sich die Ausgangssignale der Signalbaugruppe unabhängig vom Freigabesignal des Sendersteuerbausteins ändern, können bei jedem Telegrammwechsel in die Zwischenspeicher auch Übergangszustände zwischen zwei Ausgaben der Signalbaugruppe eingespeichert werden. Dies führt mindestens dann, wenn der Zwischenzustand einem gültigen Selektcode entspricht, zum Abruf von Telegrammen aus den Telegrammspeicherbausteinen, die nicht den tatsächlichen Gegebenheiten am Lichtsignal entsprechen. Dieser Zusammenhang ist anhand der Figur 3 näher verdeutlicht. Das dort dargestellte Schaubild zeigt den Signalzustand auf den zu einem Zwischenspeicher führenden Telegramm-Selektleitungen Si 0 bis Si 5 (Figur 2) jeweils zu aufeinanderfolgende Zeiten. Während eines ersten Zeitabschnittes T1 liegen die ersten vier Telegramm-Selektleitungen auf High-Pegel, während die Leitungen fünf und sechs auf Low-Pegel liegen. Infolge eines durch die Änderung eines Signalbegriffes erforderlichen Telegrammwechsels sollen nun die zweite und dritte Telegramm-Selektleitung auf Low-Pegel und die übrigen Telegramm-Selektleitungen auf High-Pegel gelegt werden. Die Übergabe des neuen Codes an den Zwischenspeicher erfolgt im Zeitraum T1/2. Dabei soll infolge unterschiedlicher Zeitkonstanten auf den Ausgängen der Auswahlsteuerung und den Eingängen des betrachteten Zwischenspeichers zunächst die sechste Telegramm-Selektleitung auf High-Pegel, dann die dritte Selektleitung auf Low-Pegel gelegt werden. Anschließend wechseln die zweite Selektleitung auf Low-Pegel und die fünfte Selektleitung auf H-Pegel. Dem Zwischenspeicher werden in dieser Phase Codekombinationen angeboten, die vorübergehend nicht den Bedingungen des verabredeten gleichgewichtigen Codes entsprechen, sondern den Bedingungen eines 1 oder eines 3 aus 6 Codes genügen. Diese Steuerkonstellationen können über eine Codeprüfung unwirksam gemacht werden. Es wird ihm zwischenzeitlich jedoch auch ein gültiger 2 aus 6-Code angeboten. Je nachdem, wann das Freigabesignal dem Zwischenspeicher zugeführt wird, kann es zum Einspeichern dieses aus zwei verschiedenen Selektsteuersignalkombinationen gebildeten, den verabredeten Codebedingungen genügenden Datums in den Zwischenspeicher und damit zum Ausgeben fehlerhafter Telgramme kommen.The current status of the telegram select signals is buffered in the buffer memory each time a release signal begins and is kept unchanged for the duration of the subsequent telegram output. Since the output signals of the signal module change independently of the release signal of the transmitter control module, transition states between two outputs of the signal module can also be stored in the buffer each time the telegram changes. At least when the intermediate state corresponds to a valid select code, this leads to the retrieval of telegrams from the telegram memory modules that do not correspond to the actual conditions on the light signal. This relationship is illustrated in more detail in FIG. 3. The diagram shown there shows the signal state on the telegram select lines Si 0 to Si 5 (FIG. 2) leading to an intermediate memory, in each case at successive times. During a first time period T1, the first four telegram select lines are at high level, while lines five and six are at low level. As a result of a telegram change required by changing a signal term now the second and third telegram select lines are set to low level and the remaining telegram select lines to high level. The new code is transferred to the buffer in the period T1 / 2. As a result of different time constants at the outputs of the selection control and the inputs of the buffer in question, the sixth telegram select line should first be set to high level, then the third select line to low level. The second select line then changes to low level and the fifth select line to H level. In this phase, the buffer is offered code combinations that temporarily do not meet the conditions of the agreed equilibrium code, but rather meet the conditions of a 1 or a 3 out of 6 codes. These tax constellations can be disabled by a code check. In the meantime, however, he is also offered a valid 2 out of 6 code. Depending on when the release signal is supplied to the buffer, this date, which is formed from two different combinations of select control signals and meets the agreed code conditions, can be stored in the buffer and thus faulty telegrams can be output.

Dies vermeidet die erfindungsgemäße Einrichtung dadurch, daß bei jedem Telegrammwechsel vorübergehend ein Zwischencode ausgegeben wird, der das bislang ausgegebene Datum so modifiziert, daß aus ihm ein nicht den verabredeten Bedingungen des gleichgewichtigen Codes genügendes Datum wird, wobei dafür Sorge getragen ist, daß auch mögliche Zwischenzustände zwischen diesem neuen Datum und dem ursprünglichen Datum ebenfalls nicht den verabredeten Code-Bedingungen genügen. Erreicht wird dies dadurch, daß z.B. die Auswahlsteuerung für eine vorgegebene Zeitspanne einen Zwischencode ausgibt, der neben den bislang aktiven Bits mindestens ein weiteres aktives Bit aufweist oder bei dem mindestens eines der aktiven Bits seine Wertigkeit gewechselt hat. Dieser Zwischencode gestaltet sich als besonders einfach, wenn er druch einen n aus n-Code oder einen 0 aus n-Code gebildet wird; n bezeichnet dabei die Anzahl der Bits des gleichgewichtigen Codes.The device according to the invention avoids this by temporarily outputting an intermediate code each time a telegram is changed, which modifies the date previously output so that it becomes a date which does not meet the agreed conditions of the equilibrium code, care being taken to ensure that possible intermediate states are also provided between this new date and the original date also does not meet the agreed code requirements. This is achieved in that, for example, the selection controller outputs an intermediate code for a predetermined period of time, which has at least one further active bit in addition to the previously active bits or in which at least one of the active bits has changed its value. This intermediate code turns out to be special simple if it is formed by an n from n code or a 0 from n code; n denotes the number of bits of the balanced code.

In Fig. 4 ist zunächst ein in einem Zeitraum T1 zur Übernahme in den Zwischenspeicher anliegendes Datum durch die Bezeichnung der Wertigkeit seiner Elemente dargestellt. Dieses Datum soll in einem Zwischenabschnitt vor der Bereitstellung eines neuen Datums durch einen Zwischencode ersetzt werden, der den Bedingungen des gleichgewichtigen Codes nicht genügt, sondern beispielsweise ein 0 aus n-Code ist. Dieser 0 aus n-Code modifiziert das bislang am Zwischenspeicher anliegende Datum, wobei es ungünstigstenfalls in einem Zeitraum T 1/2 zum Angebot eines 1 aus 6-Codes kommen kann. Ein so dargestelltes Datum wird von der Code-Prüfung als fehlerhaft erkannt und verworfen. Anschließend liegt das im 0 aus 6-Code dargestellte Datum an den Eingängen des Zwischenspeichers an; auch dieses Datum wird von der Code-Prüfung nicht akzeptiert. Ganz entsprechend verhält es sich beim Wechsel vom Zwischencode zum neuen Datum. Auch hier kann in einer Übergangsphase nur ein von der Codeprüfung als falsch erkennbares Datum gebildet werden, das sich eliminieren läßt.4 shows a date in a time period T1 for transfer to the buffer by the designation of the value of its elements. This date is to be replaced in an intermediate section before the provision of a new date by an intermediate code which does not meet the conditions of the balanced code, but is, for example, a 0 out of n code. This 0 out of n code modifies the date that was previously present in the buffer, whereby in the worst case a 1 out of 6 code can be offered in a period T 1/2. A date displayed in this way is recognized by the code check as faulty and rejected. The date shown in the 0 out of 6 code is then applied to the inputs of the buffer; this date is also not accepted by the code review. The same applies when changing from the intermediate code to the new date. Here too, only a date that can be identified as incorrect by the code check can be formed in a transition phase and can be eliminated.

Der Zwischencode muß so lange vorhanden sein, wie die Auswahlsteuerung benötigt, um an ihren Ausgängen ein neues Datum bereitzustellen und insbesondere so lange wie die Zwischenspeicher zur Vorbereitung der Übernahme eines Datums benötigen. Sollte es weitere die Übernahme eines Datums beeinflussende Zeiten wie z.B. Datenübertragungsszeiten geben, so muß deren Dauer auch von der Dauer des Zwischencodes aufgefangen werden.The intermediate code must be present as long as the selection control needs to provide a new date at its outputs and in particular as long as the intermediate memories need to prepare for the adoption of a date. If there are other times influencing the adoption of a date, e.g. Given data transmission times, their duration must also be offset by the duration of the intermediate code.

Der Zwischencode kann anstelle eines 0 aus n-Codes auch als n aus n-Code ausgebildet sein. Auch in diesem Fall können durch Mischen eines beliebigen Datums mit dem Zwischencode kein nicht als falsch erkennbares Datum gebildet werden, das zum Abrufen eines falschen Telegramms aus den Telegramm-Speichern führen könnte.The intermediate code can also be designed as an n out of n code instead of a 0 out of n code. In this case as well, by mixing any date with the intermediate code, it is not possible to form a date that is not recognizable as incorrect, which is to call up an incorrect message from the message memories could lead.

Neben diesen beiden Zwischencodes gibt es beliebig viele andere Zwischencodes, die jeweils durch Modifizierung des vor einem Telgrammwechsel wirksamen Datums gebildet werden können. Ein solcher Zwischencode kann z.B. neben den beiden aktiven Bits eines gleichgewichtigen Codes ein zusätzliches drittes aktives Bit beinhalten oder aber dadurch gebildet werden, daß mindestens eines der aktiven Bits in seiner Wertigkeit geändert wird. Auch ein Mischen des alten mit dem neuen Datum ist möglich, wobei dann z.B. aus einem 2 aus 6-Code vorübergehend ein 4 aus 6-Code wird. Auch in den Übergangsphasen zwischen altem Code, Zwischencode und neuem Code gibt es kein den verabredeten Bedingungen des gleichgewichtigen 2 aus 6-Codes genügendes Datum. Die aktiven Bits des gleichgewichtigen Codes können sowohl Low-aktiv als auch High-aktiv sein.In addition to these two intermediate codes, there are any number of other intermediate codes, each of which can be formed by modifying the date effective before a telegram change. Such an intermediate code can e.g. in addition to the two active bits of a code of equal weight contain an additional third active bit or are formed by changing the value of at least one of the active bits. It is also possible to mix the old with the new date, in which case e.g. a 2 out of 6 code temporarily becomes a 4 out of 6 code. Even in the transition phases between old code, intermediate code and new code, there is no date that meets the agreed conditions of the equilibrium 2 out of 6 codes. The active bits of the balanced code can be both low-active and high-active.

Die erfindungsgemäße Einrichtung ist nicht beschränkt auf die Anwendung bei Lichtsignalen zum Steuern von Gleiskoppelspulen, sondern läßt sich vorteilhaft überall dort anwenden, wo Gleiskoppelspulen bedarfsweise unterschiedliche Informationen an vorüberlaufende Fahrzeuge übermitteln sollen. Sie ist auch nicht beschränkt auf die Verwendung in Anlagen zur Zugbeeinflussung; überall dort, wo durch das Mischen alter und neuer Steueranweisungen vorübergehend Steuerinformationen gebildet werden können, die zwar falsch, aber nicht unbedingt als falsch erkennbar sind, schafft die Erfindung eine Möglichkeit zur Ausblendung dieser fehlerhaften Steueranweisungen.The device according to the invention is not limited to use with light signals for controlling track coupling coils, but can advantageously be used wherever track coupling coils are required to transmit different information to passing vehicles. It is also not limited to use in train control systems; wherever the mixing of old and new control instructions can temporarily generate control information that is incorrect, but not necessarily recognizable as incorrect, the invention creates a possibility of masking out these incorrect control instructions.

Claims (5)

Einrichtung zur Übergabe von in einem gleichgewichtigen Code (m aus n) dargestellten Daten an einen Telegramm-Speicher-Baustein (TSp1, TSp2) zur Bereitstellung von Telegrammen unterschiedlichen Inhalts unter Mitwirkung einer das jeweils zu übergebende Datum selektierenden, mit der Übernahme der Telegramme in den Telegramm-Speicher-Baustein nicht synchronisierten Auswahlsteuerung,
dadurch gekennzeichnet, daß
bei jedem Telegrammwechsel vor der Angabe des jeweils neuen Telegramms für eine vorgegebene Mindestzeitspanne ein Zwischen-Code generiert wird, der neben den bislang aktiven (m) Bits mindestens ein weiteres aktives Bit aufweist oder bei dem mindestens eines der aktiven Bits seine Wertigkeit gewechselt hat.Device for transferring data shown in a code of equal weight (m out of n) to a telegram memory module (TSp1, TSp2) for the provision of telegrams of different contents, with the participation of a date to be transferred, with the transfer of the telegrams to the Telegram memory module unsynchronized selection control,
characterized in that
Each time a telegram changes before the new telegram is specified, an intermediate code is generated for a predetermined minimum period of time, which has at least one further active bit in addition to the previously active (m) bits or in which at least one of the active bits has changed its value. Einrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der Zwischencode ein n aus n-Code ist, wobei n die Anzahl der Bits des gleichgewichtigen Codes ist.Device according to claim 1,
characterized,
that the intermediate code is an n out of n code, where n is the number of bits of the equilibrium code. Einrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der Zwischencode ein 0 aus n-Code ist, wobei n die Anzahl der Bits des gleichgewichtigen Codes ist.Device according to claim 1,
characterized,
that the intermediate code is a 0 out of n code, where n is the number of bits of the balanced code. Einrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß jeder Telegramm-Speicher-Baustein (TSp1, TSp2) einen Zwischenspeicher (ZSp1, ZSp2) beinhaltet zur Aufnahme mindestens einer von der Auswahlsteuerung (SBG) bereitgestellten Adresse für die Auswahl eines Adreßblockes, unter dem ein aus dem Telegramm-Speicher-Baustein jeweils abrufbares Telegramm in diesem hinterlegt ist.Device according to one of claims 1 to 3,
characterized,
that each telegram memory module (TSp1, TSp2) contains a buffer (ZSp1, ZSp2) for receiving at least one address provided by the selection controller (SBG) for the selection of an address block, under which one can be called up from the telegram memory module Telegram is stored in this. Einrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß die vorgegebene Mindestzeitspanne mindestens gleich der Zeitspanne ist, die die Auswahlsteuerung (SBG) benötigt, um an ihren Ausgängen ein neues Datum bereitzustellen und die benötigt wird zur Datenübertragung und zur Vorbereitung des Telegramm-Speicher-Bausteins auf die Übernahme dieses Datums.Device according to one of claims 1 to 4,
characterized,
that the specified minimum time period is at least equal to the time period that the selection control (SBG) needs to provide a new date at its outputs and that is required for data transmission and for preparing the telegram memory module for the adoption of this date.
EP92250212A 1991-09-30 1992-08-11 System for transferring date represented in a balanced code to a telegram memory module Withdrawn EP0535764A3 (en)

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DE9112418U DE9112418U1 (en) 1991-09-30 1991-09-30
DE9112418U 1991-09-30

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EP0535764A3 EP0535764A3 (en) 1995-04-12

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FI (1) FI924140A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037362A1 (en) * 1980-03-26 1981-10-07 Licentia Patent-Verwaltungs-GmbH Arrangement for protected data output

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037362A1 (en) * 1980-03-26 1981-10-07 Licentia Patent-Verwaltungs-GmbH Arrangement for protected data output

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FI924140A0 (en) 1992-09-16
FI924140A (en) 1993-03-31
EP0535764A3 (en) 1995-04-12
DE9112418U1 (en) 1991-12-05

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