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WO2018188847A1 - Système de service de correction, procédé de fonctionnement d'un système de service de correction, système de navigation assisté par satellite et procédé de fonctionnement d'un système de navigation assisté par satellite - Google Patents

Système de service de correction, procédé de fonctionnement d'un système de service de correction, système de navigation assisté par satellite et procédé de fonctionnement d'un système de navigation assisté par satellite Download PDF

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Publication number
WO2018188847A1
WO2018188847A1 PCT/EP2018/055124 EP2018055124W WO2018188847A1 WO 2018188847 A1 WO2018188847 A1 WO 2018188847A1 EP 2018055124 W EP2018055124 W EP 2018055124W WO 2018188847 A1 WO2018188847 A1 WO 2018188847A1
Authority
WO
WIPO (PCT)
Prior art keywords
correction
satellite
received
data processing
satellite signals
Prior art date
Application number
PCT/EP2018/055124
Other languages
German (de)
English (en)
Inventor
Markus Langer
Jens Strobel
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2018188847A1 publication Critical patent/WO2018188847A1/fr

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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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections

Definitions

  • a correction service system method for operating a correction service system, satellite-based navigation system and method for operating a satellite-based navigation system
  • the invention relates to a correction service system and a method for operating a correction service system.
  • the invention further relates to a
  • satellite-based navigation system and a method for operating a satellite-based navigation system.
  • GNSS Global navigation satellite systems
  • Navigation satellite system determined and derived therefrom routes between the respective satellite and the user device.
  • Transmission speed of the satellite signals is usually assumed the speed of light. If disturbances occur during the transmission, for example due to certain conditions in the ionosphere and / or the troposphere, there are, inter alia, runtime changes, which may result in errors in the position determination. to
  • correction services are known which can be used by means of an existing network of stationary reference stations in
  • the invention is based on the object, a correction service system, a
  • the object is achieved, in particular, by a correction service system for determining a position of a plurality of user devices in one
  • Coordinate system set up satellite-based navigation system which has at least one local reference station with known and fixed coordinates.
  • the at least one reference station is adapted to receive satellite signals from a plurality of satellites of the satellite-based navigation system.
  • the correction service system has a communication system.
  • the correction service system also has data processing which is set up to determine at least one correction value as a function of the satellite signals received by the at least one reference station and the known and fixed coordinates of the at least one reference station and the at least one
  • Correction value by means of the communication system to provide the multiple user devices of the satellite-based navigation system, so that the respective user device his own position in dependence on those of him itself received satellite signals and the at least one received correction value can determine.
  • the data processing is set up to receive the satellite signals received from the at least one reference station for deviations between the received signals
  • the correction service system also has a plurality of hardware and / or software-based respectively assigned to one of the multiple user devices
  • Correction devices are each arranged to receive the received
  • Satellite signals preferably unchanged, by means of the
  • the data processing is set up to determine the at least one correction value taking into account the information.
  • the data processing is set up to determine the at least one correction value taking into account the received satellite signals.
  • the correction service system has advantages over the prior art. By determining the at least one correction value taking into account the information respectively provided by the plurality of correction devices and / or the received satellite signals, it is possible, for example due to a too low density of a network of
  • Reference stations - so far not or only partially detected in particular ionospheric and / or tropospheric disturbances in the transmission of satellite signals are detected and correction values are given to take into account the disturbances in a position determination of the multiple user equipment. Compaction of the network of reference stations is thus no longer required, thereby avoiding corresponding costs. Ultimately, a more precise positioning and navigation of user equipment, in particular of navigation units in motor vehicles or other mobile devices. Furthermore, a determination of the space weather is improved, which, for example, brings benefits for aviation, science or power generation, for example in solar power plants.
  • the plurality of correction means are each associated with the respectively assigned user device of the plurality of user devices
  • User device is preferably configured as follows:
  • Correction device is provided in particular to provide input data of the type described above, namely in particular the information and / or the received satellite signals, as a function of which the at least one correction value is determined by means of the data processing.
  • the at least one correction value is then made available to the assigned and / or further user devices. By means of the user device it is
  • the user device or the associated correction device, or the user device and the associated correction device receive satellite signals.
  • the plurality of correction means are each adapted to receive the received satellite signals by means of the
  • An unexpected satellite signal and / or no generation of information regarding the unexpected satellite signal and / or no provision of the information is performed by means of the communication system to the data processing.
  • An unexpected satellite signal may be, for example, as be formed erroneous, inconsistent or at least partially missing satellite signal.
  • the data processing is set up so that at least one predetermined, in particular initial, correction value takes into account the
  • this predetermined correction value is determined as a function of the received satellite signals and known and fixed coordinates of the at least one reference station, in particular initially without data provided by the plurality of correction devices.
  • the communication system has a mobile radio network.
  • the plurality of correction devices and a plurality of user devices of the satellite-based navigation system described below are integrated into the mobile radio network by means of a suitable transmitting and receiving device.
  • Data processing center which has the data processing, and which is adapted to at least a plurality of
  • Reference stations to receive satellite signals and / or the information are Reference stations to receive satellite signals and / or the information. An efficient provision of the at least one correction value is realized by this data processing center.
  • the plurality of correction means are designed as a multi-frequency receiver.
  • the plurality of correction means are as
  • Two-frequency receiver formed, in particular satellite signals of a
  • Satellites are received on a first and a second frequency.
  • the plurality of correction devices are designed to receive more than two frequencies. It is special then
  • the correction service system has a plurality of correction devices, wherein in each case one of the plurality of correction devices of the type described above is assigned to the plurality of user devices.
  • the multiple user devices are each designed as a navigation unit in a motor vehicle, mobile phone, tablet computer, wearable, a mobile unit or in any other form. Consequently, a number of possible sources for the satellite signals and / or the information are advantageously increased, which leads in particular to a qualitative improvement of the correction values and thus to a more precise position determination.
  • the method according to the invention with the features of claim 7 also leads to the advantages mentioned above.
  • Communication system and data processing in particular according to one of the embodiments described above, provides that the at least one local reference station is operated to receive satellite signals of several satellites of a satellite-based navigation system. through the data processing is determined as a function of the satellite signals received by the at least one reference station and known and fixed coordinates of the at least one reference station at least one correction value. For example, by means of the data processing, the satellite signals received by the at least one reference station become
  • Deviations between determined by means of the received satellite signals coordinates and known and fixed coordinates of the at least one reference station checked and in response to a detected
  • the at least one correction value of several user devices of the satellite-based navigation system is provided, so that the respective user device can determine its own position in response to satellite signals received by itself and the at least one received correction value.
  • Correction service system on a plurality of correction means, which are each associated with one of the plurality of user equipment, and which, respectively
  • the plurality of correction means are each driven to monitor the received satellite signals for an unexpected satellite signal, to generate information regarding the unexpected satellite signal, and to transmit, by means of the communication system, the information of the
  • the plurality of correction means are each driven to provide the received satellite signals by means of the communication system of data processing available.
  • the at least one correction value is then determined in consideration of the information.
  • the at least one correction value is then determined in consideration of the information.
  • this predetermined correction value is dependent on the received satellite signals and known and fixed coordinates of the at least one reference station has been determined, in particular first without provided by the plurality of correction means data.
  • the plurality of correction devices are each driven to receive a satellite signal of a satellite of the plurality of satellites on a first and a second frequency.
  • a satellite signal which in particular has a time stamp, transmitted by a satellite in parallel on the first and the second frequency, wherein by comparing a determined by the respective correction means respective reception time of the satellite signal on the first and the second frequency, a deviation is determined ,
  • the received satellite signals are monitored for an unexpected satellite signal, wherein preferably information about the unexpected satellite signal is generated and this information is sent by the communication system to the data processing.
  • the data processing becomes
  • the at least one correction value is determined in consideration of this information. It is thus advantageously possible to carry out an examination of the satellite signal even for a single satellite.
  • the plurality of correction devices are each driven to receive satellite signals from at least a plurality of the plurality of satellites.
  • the received satellite signals are unexpected
  • Satellite signal monitored wherein information about the unexpected satellite signal is generated and wherein by means of the communication system, the information of the data processing is provided.
  • the at least one correction value is preferably determined in consideration of the information. Particularly in the case of a large number of satellites, reliable monitoring of the received satellite signals for an unexpected satellite signal is advantageously realized.
  • the plurality of correction devices are respectively controlled to receive the at least one correction value by means of the communication system from the data processing and / or from the respectively assigned user device, and at least one received correction value by means of the communication system to the
  • the at least one correction value is determined taking into account the at least one received feedback correction value.
  • the at least one correction value is determined by means of the data processing taking into account this at least one received feedback correction value. It is thus intended, in particular, to perform a plausibility check by means of the returned correction value. For example, it can be checked whether a correction value sent to the plurality of user devices and / or correction devices has been correctly received by them. In this way the safety of the method according to the invention is improved.
  • Correction devices received satellite signals for discrepancies checked. Alternatively or additionally, preferably by means of
  • Data processing checks the satellite signals received from the at least one reference station for inconsistencies.
  • the at least one correction value is then determined as a function of a result of this verification (s).
  • it is intended to disregard satellite signals in which a discrepancy, an error or the like has been found in the determination of the at least one correction value. In this way, the quality of the at least one correction value is improved.
  • the method according to the invention with the features of claim 12 also leads to the above-mentioned advantages.
  • the method is for operating a satellite-based navigation system with a plurality of user devices, a plurality of satellites and the correction service system according to the invention, wherein the correction service system has at least one local reference station, one data processing, one communication system and several
  • correction facilities has.
  • the at least one reference station and the a plurality of user equipments are operated to receive satellite signals from a plurality of satellites of the satellite-based navigation system.
  • By means of the data processing is dependent on the at least one
  • Reference station received satellite signals and known and fixed coordinates of the at least one reference station at least one correction value determined. For example, by means of the data processing, the satellite signals received by the at least one reference station become
  • Deviations between determined by means of the received satellite signals coordinates and known and fixed coordinates of the at least one reference station checked and in response to a detected
  • the at least one correction value is the plurality of by means of the communication system
  • the correction service system is operated by means of the method according to the invention for operating a correction service system.
  • the single figure shows a correction service system 1.
  • the correction system 1 is part of a satellite-based navigation system 14, which serves to determine a position of multiple user devices in a coordinate system.
  • the satellite-based navigation system 14 has a plurality of user devices 2.
  • the user devices 2 are here each exemplarily designed as a navigation system in a motor vehicle. It is also possible for the plurality of user devices 2 to be designed as a navigation unit in a mobile telephone, tablet computer, wearable or a mobile unit.
  • the Satellite-based navigation system 14 also has several - not shown here - satellites.
  • the correction service system 1 has at least one local reference station with known and fixed coordinates, which is not shown in the figure.
  • a global network of local reference stations is provided.
  • the local reference stations are stationary, with their coordinates in the coordinate system known with high accuracy.
  • User devices 2 are configured to receive satellite signals from the multiple satellites of the satellite-based navigation system 14.
  • the plurality of satellites each have a clock, the plurality of
  • Satellites are set up to provide the transmitted satellite signals with a time stamp.
  • the correction service system 1 has a data processing 3 and a communication system 5.
  • the data processing 3 is set up to determine at least one correction value 4 as a function of the satellite signals received by the at least one reference station and the known and fixed coordinates of the at least one reference station and to make the at least one correction value 4 available to the plurality of user devices 2 by means of the communication system 5 put.
  • the correction service system 1 has a plurality of hard- and / or software-based correction devices 15, which are each assigned to one of the plurality of user devices 2.
  • the plurality of correction devices 15 are each communicatively connected to the respectively assigned user device 2.
  • the communication system 5 has a back-end server 6, wherein the data processing 3 is set up to transmit the at least one correction value 4 to the back-end server 6 by means of the communication system 5.
  • the communication system 5 in the illustrated here Embodiment, a mobile network 7.
  • the plurality of user devices 2 and preferably also the correction devices 15 are each via a suitable transmitting and receiving device 8 in the mobile network. 7
  • the at least one correction value 4 is preferably sent via the back-end server 6 and the mobile network 7 to the plurality of user equipment 2 and preferably to the correction means 15.
  • the communication system 5 has at least one, here
  • the communication satellite 9 is preferably arranged geostationary. It is thus possible, as an alternative or in addition to a data transmission over the mobile radio network 7, to transfer the at least one correction value 4 from the data processing 3 via a transmission device 10 to the
  • Communications satellite 9 to send, which at least one
  • the respective user device 2 is preferably set up to determine its own position as a function of the satellite signals it receives itself, which in particular are transmitted by at least four satellites, and the at least one received correction value 4.
  • Correction service system 1 is characterized in that the plurality
  • Correction means 15 are each adapted to receive satellite signals 12 of the plurality of satellites.
  • the several components are each adapted to receive satellite signals 12 of the plurality of satellites.
  • Correction means 15 adapted to monitor the received satellite signals 12 for an unexpected satellite signal, to generate an information 11 relating to the unexpected satellite signal and to provide the information 11 of the data processing 3 by means of the communication system 5.
  • Correction means 15 adapted to provide the received satellite signals 12 by means of the communication system 5 of the data processing 3 available.
  • the information 11 and the received satellite signals 12 are sent from the plurality of correction devices 15 via the mobile network 7 to the back-end server 6, wherein the Backend server 6, the information 11 and the received satellite signals 12 to the data processing 3 transmitted.
  • the data processing 3 is adapted to the at least one
  • Correction value 4 taking into account the information 11 and / or the received satellite signals 12 to determine.
  • the data processing 3 is preferably set up by means of which of the at least one
  • Reference station and / or the plurality of correction means 15 received satellite signals 12 and / or the information 11 to determine a total electron content (TEC), which in particular reflects a state of the ionosphere.
  • the data processing 3 is preferably set up to determine the at least one correction value 4, taking into account the TEC in particular. It is preferably provided that states and disturbances in other parts of the atmosphere, for example in the troposphere, are also detected and taken into account when determining the at least one correction value 4.
  • the plurality of correction means 15 are provided. Preferably, the plurality of correction means 15
  • Two-frequency receiver are formed.
  • the correction service system 1 preferably has a data processing center 13 which has the data processing 3 and which is set up to receive satellite signals 12 and / or the information 11 from at least a plurality of the reference stations.
  • a method of the type described below is carried out by means of the correction service system 1.
  • the correction service system 1 has at least one - not shown here - local reference station with known and fixed coordinates, a communication system 5 and a data processing 3.
  • the method is characterized in that the at least one local reference station is operated to receive satellite signals 12 of several - not shown here - satellites of a satellite-based navigation system 14.
  • At least one correction value 4 is determined by means of the data processing 3 as a function of the satellite signals 12 received by the at least one reference station and known and fixed coordinates of the at least one reference station, the at least one correction value 4 being available to a plurality of user devices 2 of the satellite-based navigation system 14 by means of the communication system 5 is set, so that the respective user device 2 can determine its own position in dependence on the satellite signals received by itself 12 and the at least one received correction value 4.
  • the correction service system 1 has a plurality of correction devices 15, which are each assigned to one of the plurality of user devices 2 and which are actuated to receive satellite signals 12 of the plurality of satellites.
  • the multiple correction means 15 are each driven to the received satellite signals 12 to an unexpected
  • Monitor satellite signal to generate information 11 regarding the unexpected satellite signal and to provide the information 11 of the data processing 3 by means of the communication system 5.
  • the plurality of correction devices 15 are each driven to receive the received satellite signals 12 by means of the
  • the at least one correction value 4 is determined taking into account the information 11 and / or the received satellite signals 12.
  • the plurality of correction means 15 are each driven to, a
  • Receive satellite signal 12 of a satellite at a first and a second frequency are monitored for an unexpected satellite signal, preferably an information 11 of the type mentioned above with respect to the unexpected satellite signal is generated and provided by the communication system 5 of the data processing 3.
  • the data processing 3 is preferably the at least one
  • Correction means 15 each driven to receive satellite signals 12 at least from a plurality of the plurality of satellites.
  • the received satellite signals 12 are monitored for an unexpected satellite signal, whereby information 11 of the type already described with respect to the unexpected satellite signal is generated and made available to the data processing 3 by means of the communication system 5.
  • the at least one correction value 4 is preferably determined taking into account the information 11.
  • the plurality of correction devices 15 are each driven to the at least one correction value 4 by means of
  • the satellite signals 12 received by the plurality of correction devices 15 and / or the at least one reference station are checked for discrepancies, the at least one correction value 4 being determined as a function of a result of the check.
  • the satellite-based navigation system 14 comprises a plurality of user equipment 2, a plurality of satellites and a correction service system 1 of the type described above, wherein the correction service system 1 at least one local reference station, a data processing 3, a
  • the at least one local reference station and the plurality of user equipment are operated to receive satellite signals 12 from a plurality of satellites of the satellite-based navigation system 14.
  • At least one correction value 4 is determined by means of the data processing 3 as a function of the satellite signals 12 received by the at least one reference station and known and fixed coordinates of the at least one reference station, the at least one correction value 4 being made available to the plurality of user devices 2 by means of the communication system 5.
  • the respective user device 2 is driven to determine its own position as a function of the satellite signal 12 received by itself and the at least one received correction value 4.
  • the correction service system 1 is operated by means of a method for operating a correction service system 1 according to the type described above.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

L'invention concerne un système de service de correction (1) pour un système de navigation assisté par satellite (14) destiné à déterminer une position d'une pluralité d'appareils utilisateur (2) dans un système de coordonnées, comportant au moins une station de référence locale présentant des coordonnées connues et fixes, ladite au moins une station de référence étant conçue pour recevoir des signaux satellite (12) de plusieurs satellites du système de navigation assisté par satellite (14) ; un système de communication (5) ; et un dispositif de traitement de données (3) conçu pour déterminer au moins une valeur de correction (4) en fonction des signaux satellite (12) reçus par l'au moins une station de référence (12) et des coordonnées connues et fixes de l'au moins une station de référence, et pour fournir l'au moins une valeur de correction (4) au moyen du système de communication (5) aux appareils utilisateur du système de navigation assisté par satellite (14) de sorte que l'appareil utilisateur respectif (2) peut déterminer sa propre position en fonction de signaux satellite (12) reçus par lui-même et de l'au moins une valeur de correction (4) reçue. Selon l'invention, le système de service de correction (1) comporte plusieurs dispositifs de correction (15) basés sur du matériel et/ou des logiciels, associés respectivement à un des appareils utilisateur (2), les dispositifs de correction (15) étant respectivement conçus pour recevoir des signaux satellite (12) des satellites, les dispositifs de correction (15) étant respectivement conçus pour surveiller les signaux satellite (12) reçus au sujet d'un signal satellite inattendu, pour produire une information (11) concernant le signal satellite inattendu et pour fournir, au moyen du système de communication (5), l'information au dispositif de traitement de données (3) et/ou pour fournir les signaux satellite reçus (12), au moyen du système de communication (5), au dispositif de traitement de données (3) ; le dispositif de traitement de données (3) étant conçu pour déterminer l'au moins une valeur de correction (4) en tenant compte de l'information (11) et/ou des signaux satellite (12) reçus.
PCT/EP2018/055124 2017-04-12 2018-03-01 Système de service de correction, procédé de fonctionnement d'un système de service de correction, système de navigation assisté par satellite et procédé de fonctionnement d'un système de navigation assisté par satellite WO2018188847A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017206271.1A DE102017206271A1 (de) 2017-04-12 2017-04-12 Korrekturdienstsystem, Verfahren zum Betreiben eines Korrekturdienstsystems, satellitengestütztes Navigationssystem und Verfahren zum Betreiben eines satellitengestützten Navigationssystems
DE102017206271.1 2017-04-12

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WO2018188847A1 true WO2018188847A1 (fr) 2018-10-18

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1843166A1 (fr) * 2006-04-03 2007-10-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Détermination d'erreurs de propagation
EP2317339A1 (fr) * 2009-10-30 2011-05-04 TeleConsult Austria GmbH Procédé et dispositif destinés à la transmission de données de navigation par satellite
EP3073288A1 (fr) * 2015-03-27 2016-09-28 Honeywell International Inc. Systèmes et procédés utilisant des mesures satellites multifréquencse pour atténuer les erreurs provoquées par décorrélation spatiale des retards ionosphériques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1843166A1 (fr) * 2006-04-03 2007-10-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Détermination d'erreurs de propagation
EP2317339A1 (fr) * 2009-10-30 2011-05-04 TeleConsult Austria GmbH Procédé et dispositif destinés à la transmission de données de navigation par satellite
EP3073288A1 (fr) * 2015-03-27 2016-09-28 Honeywell International Inc. Systèmes et procédés utilisant des mesures satellites multifréquencse pour atténuer les erreurs provoquées par décorrélation spatiale des retards ionosphériques

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