EP0917515B1 - Einrichtung zur eigenortung eines spurgeführten fahrzeugs - Google Patents
Einrichtung zur eigenortung eines spurgeführten fahrzeugs Download PDFInfo
- Publication number
- EP0917515B1 EP0917515B1 EP97933620A EP97933620A EP0917515B1 EP 0917515 B1 EP0917515 B1 EP 0917515B1 EP 97933620 A EP97933620 A EP 97933620A EP 97933620 A EP97933620 A EP 97933620A EP 0917515 B1 EP0917515 B1 EP 0917515B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- receiving
- line conductor
- phase
- oscillator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 36
- 238000011143 downstream manufacturing Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000000717 retained effect Effects 0.000 abstract 3
- 230000000052 comparative effect Effects 0.000 abstract 2
- 230000001052 transient effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B61L3/16—Continuous control along the route
- B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
- B61L3/225—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation using separate conductors along the route
Definitions
- the invention relates to a device according to the Preamble of claim 1.
- a device is known for example from DE-PS 11 76 698.
- This locomotive is inductively connected to one in the track with coupling coils Line conductor coupled via which it is from a distant Control center with data relevant for vehicle control is supplied.
- the coupling coils are in one another Angle of 90 ° and to the line loop under one Angle of 45 ° arranged. Because of this coil arrangement it is possible, also frequency-modulated when passing through intersections Receive messages from a central office or to send there. Furthermore, this coil arrangement easily determine when exactly the vehicle with its antennas a line crossing point passes Has.
- the object of the invention is the device according to the preamble of claim 1 so that also for vehicles with single antennas or side by side, coupled to the forward and return conductor of a line conductor Receiving antennas a clear detection of line crossing points by evaluating the phase position of the Receiving voltage is possible. With such a facility caused level drops caused by line crossing points clearly differentiate from level drops that due to transmission interference, loose contacts and the like are conditional.
- the invention solves this problem by the characterizing Features of claim 1. Characterized in that the vehicle device at the time of a level reduction, the existing one Phase position for a certain period of time, it is possible when the received voltage rises again the current one Phase position of the received voltage with the held Compare phase comparison, so as to make a decision about whether the level reduction by the Passing a line crossing point was conditional or by a disturbance.
- the drawing shows a schematic section in FIG Representation one between those not shown Rails of a track laid line conductor L, which in A signal current flows through the direction of the arrow.
- This Signal current builds up magnetic fields around the line conductor of crossed receiving antennas A1, A2 of one traveling on the track Vehicle.
- the vehicle should be able to detect when the vehicle is being driven over, the geometric arrangement of the forward and return conductors changes of the line conductor in the track.
- the receiving voltage UA1 of one of the vehicle-side receiving antennas over the distance S can be seen, the reception voltage drops when the vehicle antenna approaches the intersection to then rise again to the same value.
- phase position of the received voltage changes thereby by 180 ° because the ones arranged below the antenna Line conductor pieces in the adjacent sections flowed through by the signal current in different directions become. Because of the different orientation of the two Receiving antennas on the line conductor receive these at Passing a line crossing point temporarily opposite phase signals. These out of phase signals lead to the fact that receivers E1, E2 antiphase received voltages are available. This Receiving voltages for crossing point detection are in a phase comparison device ⁇ evaluated. A discriminator D evaluates the amplitudes of the two at the same time Receive voltages.
- a discriminator D1 causes the activation a phase comparison device ⁇ 1, the phase position the current received voltage UA2 with the held Phase position of the previously determined reference voltage is compared. If the two voltages are in phase opposition, this is the case the evidence that the voltage drop occurred caused by passing a line crossing point has been.
- the two threshold values at which the comparison phase is held or the comparison process can be carried out be the same size; the threshold is advantageously SW2, however, above the threshold SW1; with that ensures that the comparison process is actually only takes place when the reception voltage has risen again is.
- the Discriminator D1 both falling below the predetermined first threshold value SW1 and exceeding the predetermined second threshold value SW2. With falling short of the predetermined lower threshold value SW1 causes the Discriminator D1 the recording of those measured at the receiver E4 Phase position in a memory SP1 and with the detection of upper threshold value SW2 the comparison of that in the memory SP1 stored phase value with the phase position of the receiver E3 tapped receive voltage in a phase evaluation device ⁇ 1. This causes the current received voltage and the stored reference voltage provided that the current receive voltage exceeds the predetermined upper threshold value SW2, the output of an intersection mark K * and them simultaneously causes the SP1 to be reset stored phase value. The facility is now ready on the next drop in the received voltages in the same Way to react as described above.
- the memory SP1 has the phase position of the one it detects Reference voltage for a certain minimum period of time Supply phase comparison device ⁇ 1 in a suitable form. However, since there is no reference phase, this does not happen by a numerical quantity, but by the fact that in memory or signals are generated in front of it, from which the phase relationship for the later phase comparison of the signals to be compared is recognizable.
- the memory SP1 z. B. by a flywheel oscillator shown, when entering the vehicle in the line conductor area (rise of the receiving voltage above a given minimum level) on the frequency and by temporal evaluation of the amplitude maxima and minima in connection with the zero crossings of the receiving voltage on the current phase position of the line conductor current synchronized becomes.
- This continuously synchronized flywheel oscillator continues to drop below the Threshold value SW1 at least for a predetermined period of time signals are available at its output that are representative for the phase position of the previously determined received voltage.
- Such oscillators are called phase-locked-loops oscillators known.
- the specification of the comparison phase position by a flywheel oscillator or a similar structure for the comparison process is only allowed for a certain period of time, because otherwise there is a risk that the phase position of the comparison signal versus the signal that it's presenting should, so far emigrates that despite possible in-phase the received voltages to be compared from the phase comparison device on phase opposition is recognized.
- the Disabling the memory SP1 or its output signal after a maximum permitted time for passing a line crossing point for example be caused by a timer that when setting the Memory is activated from discriminator D1.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Description
- Figur 1
- das Prinzip der Linienleiterkreuzungsstellenerfassung nach dem Stand der Technik und in
- Figur 2
- das Prinzip der Kreuzungsstellenerfassung nach der vorliegenden Erfindung.
Claims (8)
- Einrichtung zur Eigenortung eines spurgeführten, mit einem Fahrzeuggerät (A,E3,D1,SP1,ϕ1) versehenen Fahrzeugs auf durch gekreuzte, fremdgespeiste, einen Linienleiterstrom mit vorgegebener Frequenz führende Linienleiterschleifen (L) in Abschnitte unterteilten Strecken, unter Verwendung mindestens einer mit dem Hin- und/oder Rückleiter der Linienleiterschleife induktiv gekoppelten Empfangsantenne (A3, A4), deren Empfangsspannung (UA2) zum Erkennen überfahrener Linienleiterkreuzungsstellen (K) mindestens mittelbar hinsichtlich Amplitude und Phasenlage bewertbar ist,
dadurch gekennzeichnet,daß das Fahrzeuggerät (A,E3,D1,SP1,ϕ1) mindestens einen auf die Frequenz des Linienleiterstromes oder ein Vielfaches davon abstimmbaren Oszillator (SP1) aufweist, den es beim Einfahren in die Linienleiterschleife mindestens hinsichtlich der Phase auf die Empfangsspannung (UA2) synchronisiert und laufend nachführt,daß das Fahrzeuggerät (A,E3,D1,SP1,ϕ1) beim Absinken der Empfangsspannung (UA2) unter einen gegebenen ersten Pegel (SW1) die zu diesem Zeitpunkt festgestellte, von der Oszillatorausgangsspannung repräsentierte Phasenlage der Empfangsspannung (UA2) festhält und zu einem späteren Zeitpunkt, wenn die Empfangsspannung (UA3) einen vorgegebenen zweiten Pegel (SW2) überschreitet, die festgehaltene Phasenlage zum Erkennen einer überfahrenen Linienleiterkreuzungsstelle (K) mit der Phasenlage der dann aktuellen Empfangsspannung (UA2) vergleicht, wobei eine nachgeordnete Verarbeitungseinrichtung (ϕ1) des Fahrzenggeräts bei erkannter Gegenphasigkeit ein Signal (K*) als Kreuzungsstellensignal auslöst. - Einrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der zweite Pegel (SW2) um einen vorgegebenen Betrag oder Anteil über dem ersten Pegel (SW1) liegt. - Einrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß eine beim Erkennen einer Kreuzungsstelle (K) bedarfsweise rückstellbare Zeitbemessung vorgesehen ist zum Festhalten der Phasenlage der Vergleichsspannung über eine zum Passieren der Kreuzungsstelle zulässige Maximalzeit. - Einrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß das Fahrzeuggerät die Phasenlage der vom Oszillator bereitzustellenden Vergleichsspannung durch zeitliche Bewertung der Spitzenwerte und der Nulldurchgänge der Empfangsspannung (UA2) und der Vergleichsspannung bestimmt. - Einrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß das Fahrzeuggerät eine oder mehrere Antennenanordnungen mit jeweils nur einer einzigen Empfangsantenne oder mehreren, quer zur Spur nebeneinanderliegende, jeweils an den Hin- und Rückleiter des Linienleiters angekoppelte Empfangsantennen (A3, A4) aufweist. - Einrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß das Fahrzeuggerät den Oszillator bereits vor dem Absinken des Empfangspegels unter den ersten Pegel (SW1) der Empfangsspannung auf eine durch die Frequenz des Linienleiterstromes bestimmte Grundfrequnez einstellt und hierzu die Frequenz des Linienleiterstromes bestimmt, wenn und solange der Empfangspegel der Empfangsspannung einen vorgegebenen Mindestwert (SW1, SW2) übersteigt. - Einrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der Oszillator als Schwungradoszillator ausgebildet ist. - Einrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der Oszillator als phase-locked-loop-Oszillator ausgebildet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19627343A DE19627343A1 (de) | 1996-07-01 | 1996-07-01 | Einrichtung zur Eigenortung eines spurgeführten Fahrzeugs |
DE19627343 | 1996-07-01 | ||
PCT/DE1997/001411 WO1998000328A2 (de) | 1996-07-01 | 1997-07-01 | Einrichtung zur eigenortung eines spurgeführten fahrzeugs |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0917515A2 EP0917515A2 (de) | 1999-05-26 |
EP0917515B1 true EP0917515B1 (de) | 2001-10-10 |
Family
ID=7799157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97933620A Expired - Lifetime EP0917515B1 (de) | 1996-07-01 | 1997-07-01 | Einrichtung zur eigenortung eines spurgeführten fahrzeugs |
Country Status (6)
Country | Link |
---|---|
US (1) | US6168119B1 (de) |
EP (1) | EP0917515B1 (de) |
CN (1) | CN1136114C (de) |
AT (1) | ATE206676T1 (de) |
DE (2) | DE19627343A1 (de) |
WO (1) | WO1998000328A2 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19822114C1 (de) | 1998-05-08 | 1999-12-30 | Siemens Ag | Anordnung zum Übertragen eines Sendesignals von einem Sender zu einem Schienenfahrzeug zur Ortung und Informationsübermittlung |
US6439513B1 (en) | 2001-09-18 | 2002-08-27 | Union Switch & Signal, Inc. | Passive detection system for levitated vehicle or levitated vehicle system |
CN100567061C (zh) * | 2008-06-20 | 2009-12-09 | 北京交通大学 | 温度不敏感的光纤光栅应力传感列车定位和实时追踪系统 |
CN102069824B (zh) * | 2010-12-30 | 2013-03-13 | 北京交通大学 | 轨道交通车辆的定位装置和方法 |
US8576114B2 (en) * | 2011-06-24 | 2013-11-05 | Thales Canada Inc. | Location of a transponder center point |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1176698B (de) | 1962-03-30 | 1964-08-27 | Siemens Ag | Zugsicherungssystem mit linienfoermiger Signal-uebertragung zwischen Zug und Strecke |
CA853332A (en) | 1968-02-21 | 1970-10-06 | Jauquet Christian | Device for transmitting information between a fixed location and a railway vehicle |
JPS5315247B2 (de) * | 1973-02-07 | 1978-05-23 | ||
US3906436A (en) * | 1973-02-08 | 1975-09-16 | Sumitomo Electric Industries | Detection system for the location of moving objects |
US3958783A (en) * | 1973-06-15 | 1976-05-15 | Westinghouse Electric Corporation | Vehicle zero speed detection system |
US3974992A (en) * | 1975-03-13 | 1976-08-17 | Westinghouse Electric Corporation | Vehicle velocity limit control method and apparatus |
DE3205314C2 (de) * | 1982-02-15 | 1984-05-17 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur Eigenortung eines spurgeführten Objektes |
US4491967A (en) * | 1982-07-16 | 1985-01-01 | Sumitomo Electric Industries, Ltd. | Systems for locating mobile objects by inductive radio |
DE3277529D1 (en) * | 1982-07-16 | 1987-12-03 | Sumitomo Electric Industries | Systems for locating mobile objects by using inductive radio frequency lines |
FR2562018B1 (fr) * | 1984-03-28 | 1989-01-27 | Interelec | Installation de controle automatique de la marche de trains et de leurs conditions de securite |
US5364047A (en) * | 1993-04-02 | 1994-11-15 | General Railway Signal Corporation | Automatic vehicle control and location system |
FR2712863B1 (fr) * | 1993-11-23 | 1996-01-05 | Gec Alsthom Transport Sa | Balise d'initialisation d'un véhicule à l'arrêt. |
-
1996
- 1996-07-01 DE DE19627343A patent/DE19627343A1/de not_active Withdrawn
-
1997
- 1997-07-01 US US09/214,197 patent/US6168119B1/en not_active Expired - Fee Related
- 1997-07-01 WO PCT/DE1997/001411 patent/WO1998000328A2/de active IP Right Grant
- 1997-07-01 AT AT97933620T patent/ATE206676T1/de not_active IP Right Cessation
- 1997-07-01 CN CNB971973539A patent/CN1136114C/zh not_active Expired - Fee Related
- 1997-07-01 EP EP97933620A patent/EP0917515B1/de not_active Expired - Lifetime
- 1997-07-01 DE DE59704885T patent/DE59704885D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE206676T1 (de) | 2001-10-15 |
CN1228060A (zh) | 1999-09-08 |
DE59704885D1 (de) | 2001-11-15 |
CN1136114C (zh) | 2004-01-28 |
WO1998000328A3 (de) | 1998-03-12 |
EP0917515A2 (de) | 1999-05-26 |
DE19627343A1 (de) | 1998-01-08 |
US6168119B1 (en) | 2001-01-02 |
WO1998000328A2 (de) | 1998-01-08 |
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