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EP2038675A1 - System, particularly a local railway system, and method for the in-vehicle track detection for such a system - Google Patents

System, particularly a local railway system, and method for the in-vehicle track detection for such a system

Info

Publication number
EP2038675A1
EP2038675A1 EP07787236A EP07787236A EP2038675A1 EP 2038675 A1 EP2038675 A1 EP 2038675A1 EP 07787236 A EP07787236 A EP 07787236A EP 07787236 A EP07787236 A EP 07787236A EP 2038675 A1 EP2038675 A1 EP 2038675A1
Authority
EP
European Patent Office
Prior art keywords
location
vehicles
placemark
detection
signal
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Withdrawn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
EP07787236A
Other languages
German (de)
French (fr)
Inventor
Aleksandar Isailovski
Karsten Rahn
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP2038675A1 publication Critical patent/EP2038675A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/08—Systems for determining direction or position line
    • G01S1/14—Systems for determining direction or position line using amplitude comparison of signals transmitted simultaneously from antennas or antenna systems having differently oriented overlapping directivity-characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information

Definitions

  • the invention relates to a system, in particular transport ⁇ rail system and method for detecting vehicle-side infrastructure of such a system according to the preambles of claims 1 and 8.
  • FIG. 1 The invention relates to a system, in particular transport ⁇ rail system and method for detecting vehicle-side infrastructure of such a system according to the preambles of claims 1 and 8.
  • balises have a transmitting device, with the help of which the identification of the balise is transmitted to the passing vehicles.
  • the transmitting device is provided with an antenna having as each directional antenna-dependent ⁇ a radiation characteristic with a main lobe in the main beam direction.
  • the location of the balise as the location at which the voltage of the signal emitted by the balise exceeds a predetermined threshold value.
  • This procedural ⁇ ren has the disadvantage that the on-vehicle determination of the location of the beacon often has too large error.
  • the object of the invention is to reduce the error in the vehicle-side location determination and thus to increase the location accuracy of the self-location of the vehicle.
  • the object is based on the system and based on the method by the features of claims 1 and 8 solved; the dependent claims contain advantageous embodiments.
  • the solution of the problem provides that the location of the transmitting device and thus of the placemark is the middle location between the two locations at which the signal of the main lobe first passes over a predetermined threshold value as it passes which falls below.
  • the idea is to subsequently evaluate the beacon signal, ie to determine two locations for the main lobe of the radiation characteristic and to look as a place of the balise the place that lies in the middle between these two places, which is associated with a much higher accuracy is.
  • the location of the location marking is known to the vehicles, that the vehicles cover the respective distance traveled
  • the accuracy of the route detection can be increased if the vehicles determine their current location in each case starting from ei ⁇ ner passed placemark.
  • a technically simple embodiment provides that the placemark is designed as a balise. A sufficient accuracy is obtained when the detection of the route by means of position encoders on the wheel diameters.
  • the track can be contacted without contact by means of double radars .
  • the system is more disturbance-independent if the signal of the location marking is only evaluated between two predefined locations, ie within a plausible location window.
  • the balise Ia belongs to a suburban traffic system, not shown further, in which vehicles move along routes of a route network, whereby beacons Ia are fixedly arranged on the routes on the wayide.
  • Each balise la has a transmitting device which transmits its identification to the vehicles as it passes. For this purpose, a signal via the antenna of the transmitting device and thus the Balise Ia when passing the corresponding Balise Ia emitted to the vehicle.
  • the radiation characteristic 2 or the directional characteristic of the antenna of the transmitting device of the balise Ia represents the gain of the antenna. This is - as is customary - shown as a directional diagram in polar coordinates. With radiation characteristics 2, one also speaks of beam characteristics with a main lobe 3 in the main beam direction (arrow 4) and a plurality of side lobes 5, 6 or "secondary lobes", which show graphically the ratio of the relative transmission power as a function of the radiation angle. The greater the directional effect of the ⁇ Balise Ia antenna main lobe 3 is more narrow.
  • the radiation characteristic 2 of the balise Ia in the figure shows a main lobe 3 in the main beam direction (arrow 4) and on both sides of the main lobe 3 each a side lobe 5, 6, the mirror symmetry to the main beam direction (arrow 4) run fen.
  • the vehicle has a not shown, housed in the vehicle track detection, which averages the vehicle from ei ⁇ nem starting point of travel by Wegim ⁇ pulse generators based on the wheel diameter in a known manner he ⁇ mediates.
  • the vehicle track detection which averages the vehicle from ei ⁇ nem starting point of travel by Wegim ⁇ pulse generators based on the wheel diameter in a known manner he ⁇ mediates.
  • other methods of determining the route are possible, for example, the Fahrwegerfas ⁇ solution using Doppler radars.
  • the vehicle from the place Ol moves to the location 02 along the Fahrstre ⁇ blocks 7, it is determined at a predetermined threshold value 8 when passing the side lobe 6 at the location 9 an exceeding and at the location 10, a subsequent undershooting of the threshold ⁇ value.
  • a highly accurate (attention) signal ATN is generated at these locations 9, 10,..., 14, in this case ATN1, ATN2,..., ATN6 at the corresponding locations 9, 10,.
  • the signals ATN can be provided with a highly accurate time stamp, which makes it possible in a row to determine the Balisenort O based on the time stamp.) on the basis of the signals ATN can be identified 3 and this ent ⁇ speaking assign the signals ATN3 and ATN4 the main lobe , This is due to the different distances between the signals
  • ATN also possible if only one side lobe 5 or 6 is present or no side lobes 5 or 6 are present.
  • the location O of the balise is then the middle location between the two signals ATN3 and ATN4 or the locations 11, 12.
  • the route detection then internally sets the location, which was determined when passing the balise Ia, as location O of the balise Ia, which the track detection is known exactly.
  • the height of the threshold ultimately has no effect on the accuracy of the method, since this then works with rela ⁇ tive references to temporal events (determination of the time center).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

A system, particularly a local railway system, and a method for the in-vehicle track detection for such a system. The invention relates to a system, particularly a local railway system, and to a method for the in-vehicle track detection for such a system. The system comprises vehicles moving along a track system (7), on which at least one location identification (1) is firmly attached on the track side, the location identification having a transmitter device and transmitting its identification to the vehicles by emitting a signal containing the identification via the antenna of the transmitter device, the emitting characteristic (2) of which comprises a main lobe (3), wherein the vehicles detect the passage of the location identification (1). In order to reduce any errors in the in-vehicle location determination, it is proposed that the location (O) of the transmitter device, and therefore of the location identification (1), is the mean location between the two locations (11, 12) at which the signal of the main lobe (3) initially exceeds, and subsequently falls below, a predetermined threshold value while passing.

Description

Beschreibungdescription

System, insbesondere Nahverkehrsbahnsystem, und Verfahren zur fahrzeugseitigen Fahrwegerfassung für ein solches SystemSystem, in particular suburban railway system, and method for vehicle-side route detection for such a system

Die Erfindung betrifft ein System, insbesondere Nahverkehrs¬ bahnsystem, und ein Verfahren zur fahrzeugseitigen Fahrwegerfassung für ein solches System gemäß den Oberbegriffen der Ansprüche 1 und 8.The invention relates to a system, in particular transport ¬ rail system and method for detecting vehicle-side infrastructure of such a system according to the preambles of claims 1 and 8. FIG.

Nahverkehrsbahnsysteme, bei denen sich Fahrzeuge entlang von Fahrstrecken eines Streckennetzes bewegen, sind allgemein bekannt. Zur Ortung der Fahrzeuge sind wegseitige Ortsmarkie¬ rungen in Form von Balisen an den Fahrstrecken fest angeord- net . Die Balisen weisen eine Sendeeinrichtung auf, mit deren Hilfe die Identifizierung der Balise zu den passierenden Fahrzeugen übertragen wird. Zur Übertragung ist die Sendeeinrichtung mit einer Antenne versehen, die wie jede richtungs¬ abhängige Antenne eine Abstrahlcharakteristik mit einer Hauptkeule in Hauptstrahlrichtung aufweist. Beim Passieren der Balise wird deren Ort mit Hilfe der fahrzeugseitigen Fahrwegerfassung bestimmt und mit dem bekannten Ort dieser Balise verglichen und die fahrzeugseitige Fahrwegerfassung entsprechend neu kalibriert bzw. korrigiert.Suburban rail systems in which vehicles move along the routes of a route network are well known. To locate the vehicles wegseitige Ortsmarkie ¬ ments in the form of balises on the routes are fixed. The balises have a transmitting device, with the help of which the identification of the balise is transmitted to the passing vehicles. For transmission, the transmitting device is provided with an antenna having as each directional antenna-dependent ¬ a radiation characteristic with a main lobe in the main beam direction. When passing through the balise their location is determined by means of the vehicle-side track detection and compared with the known location of this balise and recalibrated or corrected the vehicle-mounted path detection accordingly.

Speziell ist bekannt, als Ort der Balise den Ort anzusehen, bei dem die Spannung des von der Balise ausgesendeten Signals einen vorgegebenen Schwellwert überschreitet. Dieses Verfah¬ ren hat den Nachteil, dass die fahrzeugseitige Bestimmung des Orts der Balise oft einen zu großen Fehler aufweist.Specifically, it is known to regard the location of the balise as the location at which the voltage of the signal emitted by the balise exceeds a predetermined threshold value. This procedural ¬ ren has the disadvantage that the on-vehicle determination of the location of the beacon often has too large error.

Die Aufgabe der Erfindung ist es, den Fehler bei der fahr- zeugseitigen Ortsbestimmung zu verringern und damit die Ortungsgenauigkeit der Selbstortung des Fahrzeugs zu erhöhen. Die Aufgabe wird bezogen auf das System und bezogen auf das Verfahren durch die Merkmale der Ansprüche 1 und 8 gelöst; die Unteransprüche beinhalten vorteilhafte Ausgestaltungen.The object of the invention is to reduce the error in the vehicle-side location determination and thus to increase the location accuracy of the self-location of the vehicle. The object is based on the system and based on the method by the features of claims 1 and 8 solved; the dependent claims contain advantageous embodiments.

Die Lösung der Aufgabe sieht bezogen auf das System und das Verfahren vor, dass der Ort der Sendeeinrichtung und damit der Ortsmarkierung der mittlere Ort zwischen den beiden Orten ist, an denen das Signal der Hauptkeule beim Passieren einen vorgegebenen Schwellwert zunächst über- und anschließend wie¬ der unterschreitet . Die Idee besteht also darin, das Balisen- signal nachträglich zu bewerten, d.h. für die Hauptkeule der Abstrahlcharakteristik zwei Orte zu bestimmen und als Ort der Balise den Ort anzusehen, der in der Mitte zwischen diesen beiden Orten liegt, was mit einer deutlich höheren Genauigkeit verbunden ist .With regard to the system and the method, the solution of the problem provides that the location of the transmitting device and thus of the placemark is the middle location between the two locations at which the signal of the main lobe first passes over a predetermined threshold value as it passes which falls below. The idea is to subsequently evaluate the beacon signal, ie to determine two locations for the main lobe of the radiation characteristic and to look as a place of the balise the place that lies in the middle between these two places, which is associated with a much higher accuracy is.

Zur Korrektur der fahrzeugseitigen Fahrwegerfassung wird vorgeschlagen, dass der Ort der Ortsmarkierung den Fahrzeugen bekannt ist, dass die Fahrzeuge den jeweils zurückgelegtenIn order to correct the vehicle-side route detection, it is proposed that the location of the location marking is known to the vehicles, that the vehicles cover the respective distance traveled

Fahrweg erfassen und anhand des Fahrwegs ihren momentanen Ort selbst bestimmen und dass die Fahrzeuge ihre fahrzeugseitige Fahrwegerfassung anhand des bekannten Orts der Ortsmarkierung nach Art einer Eichung der Fahrwegerfassung jeweils korrigie- ren.Detect the travel path and determine its current location on the basis of the travel path and that the vehicles respectively correct their vehicle-side travel path detection using the known location of the location marking in the manner of a calibration of the travel path detection.

Die Genauigkeit der Fahrwegerfassung lässt sich erhöhen, wenn die Fahrzeuge ihren momentanen Ort jeweils ausgehend von ei¬ ner passierten Ortsmarkierung bestimmen.The accuracy of the route detection can be increased if the vehicles determine their current location in each case starting from ei ¬ ner passed placemark.

Eine technisch einfache Ausführungsform sieht vor, dass die Ortsmarkierung als Balise ausgebildet ist. Eine ausreichende Genauigkeit erhält man, wenn die Erfassung des Fahrwegs mittels Wegimpulsgebern über den Raddurchmessern erfolgt .A technically simple embodiment provides that the placemark is designed as a balise. A sufficient accuracy is obtained when the detection of the route by means of position encoders on the wheel diameters.

Kontaktlos lässt sich der Fahrweg mittels Doppelradaren er¬ fassen .The track can be contacted without contact by means of double radars .

Störungsunabhängiger ist das System, wenn das Signal der Ortmarkierung jeweils nur zwischen zwei vorgegebenen Orten aus- gewertet wird, also innerhalb eines plausiblen Ortsfensters.The system is more disturbance-independent if the signal of the location marking is only evaluated between two predefined locations, ie within a plausible location window.

Die Erfindung wird nachfolgend anhand einer Zeichnung näher beschrieben, deren einzige Figur eine Ortsmarkierung 1 in Form einer Balise Ia mit einer Abstrahlcharakteristik 2 zeigt .The invention will be described in more detail below with reference to a drawing, the single figure shows a placemark 1 in the form of a Balise Ia with a radiation characteristic 2.

Die Balise Ia gehört zu einem nicht weiter gezeigten Nahverkehrsbahnsystem, bei dem sich Fahrzeuge entlang von Fahrstrecken eines Streckennetzes bewegen, wobei an den Fahrstrecken wegseitig Balisen Ia fest angeordnet sind.The balise Ia belongs to a suburban traffic system, not shown further, in which vehicles move along routes of a route network, whereby beacons Ia are fixedly arranged on the routes on the wayide.

Jede Balise Ia weist eine Sendeeinrichtung auf, die ihre I- dentifizierung an die Fahrzeuge beim Passieren überträgt. Dazu wird ein Signal über die Antenne der Sendeeinrichtung und damit der Balise Ia beim Passieren der entsprechenden Balise Ia zum Fahrzeug hin abgestrahlt.Each balise la has a transmitting device which transmits its identification to the vehicles as it passes. For this purpose, a signal via the antenna of the transmitting device and thus the Balise Ia when passing the corresponding Balise Ia emitted to the vehicle.

Die Abstrahlcharakteristik 2 oder auch Richtcharakteristik der Antenne der Sendeeinrichtung der Balise Ia stellt den Ge- winn der Antenne dar. Dieser ist - wie allgemein üblich - als Richtdiagramm in Polarkoordinaten dargestellt. Man spricht bei Abstrahlcharakteristiken 2 auch von Keulencharakteristiken mit einer Hauptkeule 3 in Hauptstrahlrichtung (Pfeil 4) und mehreren Nebenkeulen 5, 6 oder „Nebenzipfeln", welche an- schaulich das Verhältnis der relativen Sendeleistung in Abhängigkeit vom Abstrahlwinkel zeigen. Desto größer die Richt¬ wirkung der Antenne der Balise Ia desto schmaler wird die Hauptstrahlkeule 3.The radiation characteristic 2 or the directional characteristic of the antenna of the transmitting device of the balise Ia represents the gain of the antenna. This is - as is customary - shown as a directional diagram in polar coordinates. With radiation characteristics 2, one also speaks of beam characteristics with a main lobe 3 in the main beam direction (arrow 4) and a plurality of side lobes 5, 6 or "secondary lobes", which show graphically the ratio of the relative transmission power as a function of the radiation angle. The greater the directional effect of the ¬ Balise Ia antenna main lobe 3 is more narrow.

Die Abstrahlcharakteristik 2 der Balise Ia in der Figur zeigt eine Hauptkeule 3 in Hauptstrahlrichtung (Pfeil 4) und beid¬ seitig der Hauptkeule 3 jeweils eine Nebenkeule 5, 6, die spiegelsymmetrisch zur Hauptstrahlrichtung (Pfeil 4) verlau- fen.The radiation characteristic 2 of the balise Ia in the figure shows a main lobe 3 in the main beam direction (arrow 4) and on both sides of the main lobe 3 each a side lobe 5, 6, the mirror symmetry to the main beam direction (arrow 4) run fen.

In der Figur ist schematisch der Verlauf der Fahrstrecke 7 des passierenden Fahrzeugs eingezeichnet.In the figure, the course of the route 7 of the passing vehicle is shown schematically.

Das Fahrzeug verfügt über einen nicht gezeigte, im Fahrzeug untergebrachte Fahrwegerfassung, die den vom Fahrzeug von ei¬ nem Ausgangspunkt aus zurückgelegten Fahrweg mittels Wegim¬ pulsgebern anhand des Raddurchmessers in bekannter Weise er¬ mittelt. Selbstverständlich sind auch andere Verfahren der Fahrwegermittlung möglich, beispielsweise die Fahrwegerfas¬ sung mittels Dopplerradaren. Zweckmäßigerweise ist der Aus¬ gangspunkt für den zurückgelegten Weg jeweils die zuletzt passierte Balise Ia, deren Ort dem Fahrzeug und damit der Fahrwegerfassung jeweils bekannt ist.The vehicle has a not shown, housed in the vehicle track detection, which averages the vehicle from ei ¬ nem starting point of travel by Wegim ¬ pulse generators based on the wheel diameter in a known manner he ¬ mediates. Of course, other methods of determining the route are possible, for example, the Fahrwegerfas ¬ solution using Doppler radars. Conveniently, the out ¬ starting point for the distance traveled in each case the Balise Ia, whose location is the vehicle and the track recording each known last happened.

Bewegt sich das Fahrzeug vom Ort Ol zum Ort 02 (also inner¬ halb dieses Ortsfensters, das entsprechend groß, wenn auch nicht zu groß, und damit plausibel ist) entlang der Fahrstre¬ cke 7, so ermittelt es bei einem vorgegebenen Schwellwert 8 beim Passieren der Nebenkeule 6 am Ort 9 ein Überschreiten und am Ort 10 ein anschließendes Unterschreiten des Schwell¬ werts. Dasselbe ereignet sich in Bezug auf die Hauptkeule 3 an den Orten 11 und 12 und in Bezug auf die Nebenkeule 5 an den Orten 13, 14. Praktisch wird an diesen Orten 9, 10,..., 14 jeweils ein hochgenaues (Attention-) Signal ATN erzeugt, hier also ATNl, ATN2,..., ATN6 an den entsprechenden Orten 9, 10,..., 14. (Die Signale ATN können jeweils mit einem hochgenauen Zeitstempel versehen werden, was es in Folge ermöglicht, den Balisenort O anhand der Zeitstempel zu ermitteln.) Anhand der Signale ATN lässt sich die Hauptkeule 3 identifizieren und dieser ent¬ sprechend die Signale ATN3 und ATN4 zuordnen. Dies ist auf- grund der unterschiedlichen Abstände zwischen den SignalenThe vehicle from the place Ol (ie intra ¬ half this local window that is correspondingly large, if not too large, and thus plausible) moves to the location 02 along the Fahrstre ¬ blocks 7, it is determined at a predetermined threshold value 8 when passing the side lobe 6 at the location 9 an exceeding and at the location 10, a subsequent undershooting of the threshold ¬ value. The same occurs with respect to the main lobe 3 at the locations 11 and 12 and with respect to the side lobe 5 at the locations 13, 14. In practice, a highly accurate (attention) signal ATN is generated at these locations 9, 10,..., 14, in this case ATN1, ATN2,..., ATN6 at the corresponding locations 9, 10,. (the signals ATN can be provided with a highly accurate time stamp, which makes it possible in a row to determine the Balisenort O based on the time stamp.) on the basis of the signals ATN can be identified 3 and this ent ¬ speaking assign the signals ATN3 and ATN4 the main lobe , This is due to the different distances between the signals

ATN auch dann möglich, wenn nur eine Nebenkeule 5 oder 6 vorhanden ist oder aber keine Nebenkeulen 5 oder 6 vorhanden sind.ATN also possible if only one side lobe 5 or 6 is present or no side lobes 5 or 6 are present.

Der Ort O der Balise ist dann der mittlere Ort zwischen den beiden Signalen ATN3 und ATN4 bzw. den Orten 11, 12. Die Fahrwegerfassung setzt dann intern den Ort, der beim Passieren der Balise Ia ermittelt wurde, als Ort O der Balise Ia, welcher der Fahrwegerfassung genau bekannt ist.The location O of the balise is then the middle location between the two signals ATN3 and ATN4 or the locations 11, 12. The route detection then internally sets the location, which was determined when passing the balise Ia, as location O of the balise Ia, which the track detection is known exactly.

Die Höhe des Schwellwertes hat letzten Endes keinen Einfluss auf die Genauigkeit des Verfahrens, da dieses dann mit rela¬ tiven Bezügen zu zeitlichen Ereignissen arbeitet (Ermittlung der zeitlichen Mitte) . The height of the threshold ultimately has no effect on the accuracy of the method, since this then works with rela ¬ tive references to temporal events (determination of the time center).

Claims

Patentansprüche claims 1. System, insbesondere Nahverkehrsbahnsystem, mit sich entlang einer Fahrstrecke (7), insbesondere eines Streckennet- zes, bewegenden Fahrzeugen, an der zumindest eine wegseitige Ortsmarkierung (1) fest angeordnet ist, die eine Sendeeinrichtung aufweist und die ihre Identifizierung an die Fahrzeuge überträgt, indem sie ein Signal mit der Identifizierung über die Antenne der Sendeeinrichtung abstrahlt, deren Ab- Strahlcharakteristik (2) eine Hauptkeule (3) aufweist, wobei die Fahrzeuge das Passieren der Ortsmarkierung (1) erfassen, d a d u r c h g e k e n n z e i c h n e t , dass der Ort (O) der Sendeeinrichtung und damit der Ortsmar- kierung (1) der mittlere Ort zwischen den beiden Orten (11, 12) ist, an denen das Signal der Hauptkeule (3) beim Passie¬ ren einen vorgegebenen Schwellwert (8) zunächst über- und anschließend wieder unterschreitet .1. System, in particular suburban train system, along along a route (7), in particular a Streckenseet- zes, moving vehicles on which at least one path-side placemat (1) is fixed, which has a transmitting device and transmits their identification to the vehicles in that it radiates a signal with the identification via the antenna of the transmitting device whose emission characteristic (2) has a main lobe (3), the vehicles detecting the passage of the location marker (1), characterized in that the location (O) of the Transmission device and thus the Ortsmar- cation (1) is the middle location between the two places (11, 12) at which the signal of the main lobe (3) when Passie ¬ ren first exceeds a predetermined threshold (8) and then below again , 2. System nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass der Ort (O) der Ortsmarkierung (1) den Fahrzeugen bekannt ist, dass die Fahrzeuge den jeweils zurückgelegten Fahrweg erfassen und anhand des Fahrwegs ihren momentanen Ort selbst bestimmen und dass die Fahrzeuge ihre fahrzeugseitige Fahrwegerfassung an¬ hand des bekannten Orts (O) der Ortsmarkierung (1) nach Art einer Eichung der Fahrwegerfassung jeweils korrigieren.2. System according to claim 1, characterized in that the location (O) of the placemark (1) is known to the vehicles that capture the vehicles each covered track and determine based on the driveway their current location itself and that the vehicles their vehicle-mounted path detection ¬ Correct each hand of the known location (O) of the placemark (1) in the manner of a calibration of the track detection. 3. System nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , dass die Fahrzeuge ihren momentanen Ort jeweils ausgehend von einer passierten Ortsmarkierung (1) selbst bestimmen. 3. System according to claim 1 or 2, characterized in that the vehicles determine their current location in each case starting from a passing placemark (1) itself. 4. System nach einem der Ansprüche 1 - 3, d a d u r c h g e k e n n z e i c h n e t , dass die Ortsmarkierung (1) als Balise (Ia) ausgebildet ist.4. System according to one of claims 1-3, characterized in that the location mark (1) is designed as a balise (Ia). 5. System nach einem der Ansprüche 1 - 4, d a d u r c h g e k e n n z e i c h n e t , dass die Erfassung des Fahrwegs mittels Wegimpulsgebern über den Raddurchmesser erfolgt.5. System according to one of claims 1-4, characterized in that the detection of the travel path by means of position encoders on the wheel diameter. 6. System nach einem der Ansprüche 1 - 4, d a d u r c h g e k e n n z e i c h n e t , dass die Erfassung des Fahrwegs mittels Dopplerradaren erfolgt .6. System according to any one of claims 1 - 4, d a d u r c h e k e n e c i n e in that the detection of the travel path takes place by means of Doppler radars. 7. System nach einem der Ansprüche 1 - 6, d a d u r c h g e k e n n z e i c h n e t , dass das Signal der Ortsmarkierung (1) jeweils zwischen zwei vorgegebenen Orten (Ol, 02) ausgewertet wird.7. System according to one of claims 1-6, characterized in that the signal of the placemark (1) in each case between two predetermined locations (Ol, 02) is evaluated. 8. Verfahren zur fahrzeugseitigen Fahrwegerfassung für ein8. A method for vehicle-side route detection for a System, insbesondere ein Nahverkehrsbahnsystem, mit sich entlang einer Fahrstrecke (7), insbesondere eines Streckennet¬ zes, bewegenden Fahrzeugen, an der zumindest eine wegseitige Ortsmarkierung (1) fest angeordnet ist, die eine Sendeein- richtung aufweist und die ihre Identifizierung an die Fahrzeuge überträgt, indem sie ein Signal mit der Identifizierung über die Antenne der Sendeeinrichtung abstrahlt, deren Abstrahlcharakteristik (2) eine Hauptkeule (3) aufweist, wobei die Fahrzeuge das Passieren der Ortsmarkierung (1) er- fassen, d a d u r c h g e k e n n z e i c h n e t , dass das Signal der Hauptkeule (3) beim Passieren der Orts¬ markierung (1) erfasst wird und dass der Ort (O) der Sendeeinrichtung und damit der Ortsmar- kierung (1) der mittlere Ort zwischen den beiden Orten (11, 12) ist, an denen das Signal der Hauptkeule (3) beim Passie¬ ren einen vorgegebenen Schwellwert (8) zunächst über- und anschließend wieder unterschreitet .System, in particular a suburban train system, with along a route (7), in particular a Streckenheet ¬ zes, moving vehicles on which at least one path-side placemat (1) is fixed, which has a transmitting device and their identification to the vehicles transmits, by emitting a signal with the identification via the antenna of the transmitting device whose emission characteristic (2) comprises a main lobe (3), the vehicles detecting the passage of the placemark (1), characterized in that the signal of the main lobe ( 3) is detected when passing the local ¬ mark (1) and that the location (O) of the transmission device and thus the Ortsmar- kierung (1) the average location between the two locations (11, 12), at which the signal of the main lobe (3) when Passie ¬ ren a predetermined threshold value (8) firstly exceeds and then falls again. 9. Verfahren nach Anspruch 8, d a d u r c h g e k e n n z e i c h n e t , dass der Ort (O) der Ortsmarkierung (1) den Fahrzeugen bekannt ist, dass die Fahrzeuge den jeweils zurückgelegten Fahrweg erfassen und anhand des Fahrwegs ihren momentanen Ort selbst bestimmen und dass die Fahrzeuge ihre fahrzeugseitige Fahrwegerfassung je¬ weils anhand des bekannten Orts (O) der Ortsmarkierung (1) korrigieren . 9. The method according to claim 8, characterized in that the location (O) of the placemark (1) is known to the vehicles that detect the vehicles each covered track and determine based on the track their current location itself and that the vehicles their vehicle-side track detection ever ¬ because on the basis of the known location (O) of the placemark (1) correct.
EP07787236A 2006-07-12 2007-07-09 System, particularly a local railway system, and method for the in-vehicle track detection for such a system Withdrawn EP2038675A1 (en)

Applications Claiming Priority (2)

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DE102006033211A DE102006033211A1 (en) 2006-07-12 2006-07-12 System, in particular suburban train system, and method for vehicle-side route detection for such a system
PCT/EP2007/056960 WO2008006803A1 (en) 2006-07-12 2007-07-09 System, particularly a local railway system, and method for the in-vehicle track detection for such a system

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