EP0881136A3 - Method to form the safe confidence range of a position fixing solution - Google Patents

Method to form the safe confidence range of a position fixing solution Download PDF

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Publication number
EP0881136A3
EP0881136A3 EP98105117A EP98105117A EP0881136A3 EP 0881136 A3 EP0881136 A3 EP 0881136A3 EP 98105117 A EP98105117 A EP 98105117A EP 98105117 A EP98105117 A EP 98105117A EP 0881136 A3 EP0881136 A3 EP 0881136A3
Authority
EP
European Patent Office
Prior art keywords
location
trust
confidence
interval
individual
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.)
Granted
Application number
EP98105117A
Other languages
German (de)
French (fr)
Other versions
EP0881136A2 (en
EP0881136B1 (en
Inventor
Karl-A. Klinge
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
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0881136A2 publication Critical patent/EP0881136A2/en
Publication of EP0881136A3 publication Critical patent/EP0881136A3/en
Application granted granted Critical
Publication of EP0881136B1 publication Critical patent/EP0881136B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0092—Memory means reproducing during the running of the vehicle or vehicle train, e.g. smart cards
    • 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
    • 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
    • B61L25/026—Relative localisation, e.g. using odometer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2205/00—Communication or navigation systems for railway traffic
    • B61L2205/04—Satellite based navigation systems, e.g. global positioning system [GPS]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Navigation (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • Traffic Control Systems (AREA)
  • Alarm Systems (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)

Abstract

Durch die Verwendung beliebiger Kaufelektronik zur Positionserfassung von Fahrzeugen muß mit der Möglichkeit von Ortungsfehlern gerechnet werden. Um zu einem Ortungsergebnis mit sicherheitsrelevantem Vertrauensintervall (SVIPo) zu gelangen, werden daher mehrere Einzelortungen vorgenommen, wobei die Vertrauensintervalle (VIP1, VIP2, VIPn) dieser Einzelortungsergebnisse durch Anwendung des fahrortabhängigen Vertrauensintervalls der Wegmessung fortgeschrieben werden, d. h. die Vertrauensintervalle der Einzelortungslösungen werden über die Zeit gesehen immer größer. Wenn genügend Ortungslösungen und damit Vertrauensintervalle vorliegen, werden diese daraufhin geprüft, ob sie in sich konsistent sind. Das nach Maßgabe des Vertrauensintervalls der relativen Wegmessung fortgeschriebene Vertrauensintervall des letzten als sicherheitsrelevant anerkannten Ortungsergebnisses wird dabei auf die oberen und unteren Grenzen der fortgeschriebenen Einzelvertrauensbereiche zurückgesetzt. Unter Berücksichtigung dieser zurückgesetzten Vertrauensintervallgrenzen ermittelt sich das Fahrzeug seinen tatsächlichen Fahrort jeweils durch wegabhängiges Fortschreiben dieser Werte unter zusätzlicher Berücksichtigung des Vertrauensintervalls der relativen Wegmessung.

Figure 00000001
Through the use of any purchase electronics for position detection of vehicles, the possibility of location errors must be expected. In order to arrive at a location result with a safety-relevant trust interval (SVIPo), several individual localizations are carried out, whereby the trust intervals (VIP1, VIP2, VIPn) of these individual location results are updated by using the location-dependent trust interval of the distance measurement, i.e. the confidence intervals of the individual location solutions become over time seen bigger and bigger. If there are enough location solutions and thus trust intervals, they are checked to see whether they are consistent in themselves. The confidence interval of the last location result recognized as safety-relevant and updated according to the confidence interval of the relative distance measurement is reset to the upper and lower limits of the updated individual confidence ranges. Taking into account these reset confidence interval limits, the vehicle determines its actual driving location by updating these values as a function of the route, while also taking into account the confidence interval of the relative distance measurement.
Figure 00000001
EP98105117A 1997-05-29 1998-03-20 Method to form the safe confidence range of a position fixing solution Expired - Lifetime EP0881136B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722899A DE19722899A1 (en) 1997-05-29 1997-05-29 Method for forming the security-relevant trust interval of a location solution
DE19722899 1997-05-29

Publications (3)

Publication Number Publication Date
EP0881136A2 EP0881136A2 (en) 1998-12-02
EP0881136A3 true EP0881136A3 (en) 2000-09-27
EP0881136B1 EP0881136B1 (en) 2003-01-02

Family

ID=7831072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98105117A Expired - Lifetime EP0881136B1 (en) 1997-05-29 1998-03-20 Method to form the safe confidence range of a position fixing solution

Country Status (4)

Country Link
EP (1) EP0881136B1 (en)
AT (1) ATE230360T1 (en)
DE (2) DE19722899A1 (en)
ES (1) ES2189999T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10355860A1 (en) * 2003-11-25 2005-06-30 Deutsche Telekom Ag Mobile telephone communication system has a facility for time and location determination
ES2322076T3 (en) * 2004-03-05 2009-06-16 Alstom Belgium S.A. METHOD AND DEVICE FOR DETERMINING SAFELY THE POSITION OF AN OBJECT.
EP1642800A1 (en) * 2004-09-29 2006-04-05 Alstom Belgium S.A. Method and system for determining the position of an object moving along a course
SI1788461T1 (en) 2005-11-22 2009-12-31 Multitel Asbl A device for and a method of designing a sensor arrangement for a safe automated system, an automated system, a program element and a computer-readable medium
FR3019676B1 (en) * 2014-04-02 2017-09-01 Alstom Transp Tech METHOD FOR CALCULATING A POSITIONS INTERVAL OF A RAILWAY VEHICLE ON A RAILWAY AND ASSOCIATED DEVICE
FR3029674A1 (en) * 2014-12-03 2016-06-10 Alstom Transp Tech METHOD OF DISCRIMINATION OF THE PRESENCE OF A RAILWAY VEHICLE ON A CANTON, METHOD OF CALCULATING A SAFETY INTERVAL AND ASSOCIATED DEVICE
DE102017205456A1 (en) * 2017-03-30 2018-10-04 Siemens Aktiengesellschaft Device for determining at least one measured value related to a location and / or at least one movement variable of a track-bound vehicle and method for operating such a device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155688A (en) * 1989-10-24 1992-10-13 Mitsubishi Denki Kabushiki Kaisha Vehicle navigation system
EP0522862A1 (en) * 1991-07-10 1993-01-13 Pioneer Electronic Corporation GPS Navigation system with selective position offset correction
EP0537499A1 (en) * 1991-09-19 1993-04-21 Matsushita Electric Industrial Co., Ltd. On-vehicle position computing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155688A (en) * 1989-10-24 1992-10-13 Mitsubishi Denki Kabushiki Kaisha Vehicle navigation system
EP0522862A1 (en) * 1991-07-10 1993-01-13 Pioneer Electronic Corporation GPS Navigation system with selective position offset correction
EP0537499A1 (en) * 1991-09-19 1993-04-21 Matsushita Electric Industrial Co., Ltd. On-vehicle position computing apparatus

Also Published As

Publication number Publication date
DE59806784D1 (en) 2003-02-06
ATE230360T1 (en) 2003-01-15
EP0881136A2 (en) 1998-12-02
DE19722899A1 (en) 1998-12-03
EP0881136B1 (en) 2003-01-02
ES2189999T3 (en) 2003-07-16

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