EP2903188A1 - Système et procédé de reconnaissance de régions géographiques pour récepteur mobile et procédé - Google Patents

Système et procédé de reconnaissance de régions géographiques pour récepteur mobile et procédé Download PDF

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Publication number
EP2903188A1
EP2903188A1 EP15152432.9A EP15152432A EP2903188A1 EP 2903188 A1 EP2903188 A1 EP 2903188A1 EP 15152432 A EP15152432 A EP 15152432A EP 2903188 A1 EP2903188 A1 EP 2903188A1
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EP
European Patent Office
Prior art keywords
rds
country
code
region
database
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Withdrawn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
EP15152432.9A
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German (de)
English (en)
Inventor
Gerhard Dochow
Christof Menzenbach
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.)
Continental Automotive GmbH
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Continental Automotive GmbH
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Publication date
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/49—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations
    • H04H60/51—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of receiving stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/57—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for mobile receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/13—Aspects of broadcast communication characterised by the type of broadcast system radio data system/radio broadcast data system [RDS/RBDS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas

Definitions

  • the invention relates to a system for the detection of geographical regions for mobile receivers according to the preamble of patent claim 1.
  • EP 2 281 177 B1 describes a portable navigation device comprising a processing resource operatively coupled to a radio data system communication unit and a position determination unit, the processing resource supporting a country code selector; a data store capable of storing radio data system country code data, the data store operably coupled to the processing resource; wherein the processing resource is arranged to determine a first country associated with generated position data in use by the position determining unit; the country code selector is arranged to identify a first country code from the country code data that does not correspond to the first country associated with the location data and a second country adjacent to the first country; and the processing resource is adapted to use the first country code to generate a program identification code.
  • EP 0 429 000 A2 discloses an RDS radio receiver or RDS car radio with electronic tuning and storage elements, with a device for judging the reception quality and with a central control unit, the nonvolatile memory containing the operating program and its country-specific variants, the RDS decoder of the central control unit Control signals according to the RDS data signal supplied information and the non-volatile memory for calling the country-specific variant of the operating program is addressed by the central control unit according to the country code contained in the PI code of the RDS signal.
  • EP 0 866 576 A2 describes an RDS receiver for the evaluation of traffic notifications based on TMC messages, with at least one tuner and at least one RDS decoder and a control unit with a memory, wherein a device for determining position, which of the tuner and the RDS decoder is formed of the RDS receiver, the control unit and the memory is provided, which determines the location of the RDS receiver, which is stored by the control unit in memory and only received by the RDS receiver TMC messages from the control unit via an optical and / or audible output unit are output for which is determined in a review of location information contained in the TMC messages with the stored memory location by the control unit, a relationship between location information and location, the tuner over the entire receiving frequency band is tuned and all receivable Transmitter with RDS information from the RDS decoder are identified and compared by the control unit with a table stored in the memory, the table containing information on the transmission areas of the transmitter with RDS information, whereby the location of the RDS receiver is determined by
  • EP 0 499 608 B1 describes a radio receiver, in particular vehicle receiver, with a decoder for decoding digitally coded received traffic messages, in particular those which are transmitted to the RDS system, a memory device for route-specific features and regional identifiers, an optical and / or acoustic output device for the traffic news as off information read out from the memory device, wherein path-specific features of limited geographic regions are associated with such regions, with a station search for the radio receiver and with a memory for storing the frequencies of the received stations, wherein a further memory is provided which contains a list of the regions and the ones receivable therein Transmitting frequencies includes that in a comparator, the stored received frequencies are compared with the frequencies stored in the further memory and the region is switched through, in which the Ver equal means between the received and the stored frequencies at least partially determines a match and that only those traffic messages are issued whose regional identifier corresponds to the through-connected region.
  • DE 44 25 194 A1 discloses a radio receiver or a vehicle receiver with a decoder for decoding digitally transmitted transmitter identifiers, in particular the PI code according to the RDS system, characterized in that the receiver has a memory of broadcasters receivable transmitters with respect to their frequency and their transmitter identification that the radio receiver based on the set frequency and the transmitter identification from the large spaces stored in the memory determines the metropolitan area in which the received transmitter is and accepts this as the recipient site that then, if several large spaces are determined, the receiver switches to another frequency, by the number of specific large rooms can be reduced and with the help of the then received station identification determines the metropolitan area, in which the tuned station is located and that the receiver repeats the process until a clear metropolitan area is determined.
  • EP 0 412 286 A2 describes a vehicle receiver having a decoder for decoding digitally encoded received traffic messages, preferably according to the RDS specifications, a comparator for route-specific features containing the route, contained in the traffic information, with a receiving device and a transit time measuring device for at least three in their modulation synchronized transmitter, by means of which the characteristics of the route can be determined as the respective vehicle location, as well as an optical and / or acoustic output device for route-selective reproduction of the traffic news, wherein in a runtime value memory of the receiver, a coordinate network with time values of the receivable in a respective area synchronized transmitter is stored and that in one Runtime comparators by comparison of the measured transit time values with stored transit time values, the coordinates of the closest running time values in the coordinate network can be selected as a vehicle location.
  • DE 39 42 339 C2 discloses an RDS car radio with electronic transmitter tuning, with electronic memories for storing frequency and program identification data, with a device for judging the reception quality and with a central control unit which triggers an automatic station search as soon as the currently received program and its associated alternative frequencies are no longer receivable, wherein the receive field strength is evaluated and assigned to the respective frequency for the receive frequencies determined during the station scan, the central control unit finding all RDS transmit frequencies found during the scan over the entire receive frequency range in the form of a Stores the code sorted list in the search memory, the frequency with the highest field strength transfers into the main memory, provided that the country code contained in the PI code matches the country code received before the start of the search, the search results in the stored frequency list for the transmission frequency with the same country code the field strongest transmission frequency with different countries Code is copied to the main memory and fixed with different country code reception frequency accepted as a reference for a later change to alternative frequencies or for a new automatic station search.
  • the object of the present invention is to specify a system and a method with which a transmitter can be clearly assigned nationally and provided with a specific display.
  • the inventive step is to combine the special assignment of the RDS country codes into regions having the characteristics of a moving receiver in the vehicle, which exploits the regional sequence of country codes during a regional assignment, without the need for additional geographical information in addition to an initial region.
  • z. B the task of assigning a station clearly assigned nationally and provided with a specific display to be solved.
  • WZ applications / processing
  • the solution can be used in particular in systems without additional geographic positioning, so that this leads to significant savings (eg by omission of the GPS receiver).
  • the RDS standard includes an additional Extended Country Code (ECC), which is not always broadcast or is incorrectly set by broadcasters in practice.
  • ECC Extended Country Code
  • Another solution to the problem is with additional geographic information, e.g. B. from a GPS receiver (Global Positioning System), possible.
  • the system for detecting geographical regions for mobile recipients is characterized in that the system maintains a geographical database (DB) in which to each country and / or region (Rj) in the RDS reception room, its national identifier (Nj) in the PI code and the country codes (Nk) of the adjacent neighboring country (Rk) are assigned and a controller (STEU) continuously specifies new reception frequencies (Fi) to an RDS data tuner (TUN) to search the RDS Receive Band (FM) and store for each detected RDS station the receiving frequency (Fi), the RDS PI code and the national identifier of the transmitter (Ni) in a dynamic database (LST) and an entry in the dynamic database (LST) to delete if the associated station is no longer receivable.
  • DB geographical database
  • Nj national identifier
  • Nk country codes
  • Nk country codes
  • system according to the invention is characterized in that a control STEU to the country R and to each received country code Ni queries the geographic database DB and as a result to the country code matching region Ni (Ri) is supplied.
  • a further advantageous embodiment of the system according to the invention is characterized in that due to the geographical allocation rules of the RDS PI codes to the various countries, the query of the geographical database DB for a combination of receivable stations leads to a clear result for the current region to be determined.
  • system according to the invention is integrated in a vehicle receiver.
  • the advantageous and inventive method for detecting geographical regions for mobile recipients is characterized in that associated with each country and / or region Rj in the RDS receiving space, its national identifier Nj in the PI code and the country codes Nk of the neighboring neighboring countries Rk and a Control STEU an RDS data tuner TUN continuously new reception frequencies Fi predetermine to search the RDS reception band FM and for each detected RDS station, the reception frequency Fi, the RDS PI code and the national identifier of the transmitter Ni in a dynamic database LST store and delete an entry in the dynamic database LST if the associated sender is no longer receivable.
  • the received field strengths for the received transmitters be stored in the database LST and used by the controller for the determination of the most probable, current region R, in addition the field strength as measure M for the most probable Region is included.
  • the sum over all field strengths of the transmitters with the same country code is determined for the measure M.
  • a geographic database DB in which, for each country / region Rj in the RDS reception area (eg Europe, Middle East, North Africa), its national identifier (s) Nj in the PI code (ie the 4 most significant bits of the PI code, also called country code) and the country codes Nk are associated with its neighboring neighboring Rk.
  • a controller STEU an RDS data tuner continuously tuned to new receive frequencies Fi pretends, so as to search the RDS reception band (FM) and store for each detected RDS station, the reception frequency Fi, the RDS PI code and thus the national identifier of the transmitter Ni in a dynamic database LST or an entry in the delete the dymic database if the corresponding transmitter is no longer receivable.
  • the controller STEU queries the country R and each country code Ni received the geographical database DB and as a result of the Country Code matching region Ri delivered. If the receiver now moves from country R to another country Ri, the number of stations in that country will predominate and the current region R will be set to Ri. This ensures that the currently determined region R successively follows the change in the transmitter landscape.
  • the query of the geographical database DB is always unique, except z. B. in certain receiving situations with overreach (Wetterinversionslage).
  • the uniqueness for the current region R is preserved by considering only the two country codes with the most stations.
  • the proposed system automatically tracks the country assignment of the received transmitters Ri and can output these for further processing WZ or the station display ANZ.
  • the display ANZ can now make the correct region-dependent representation of the sender or other region-dependent information. It can also be the region R with the most receivable stations as the most likely region in which the receiver is located. This can be used in the further processing WZ for the correct regional setting of region-dependent variables, eg. As the local time, are used.
  • the controller should signal the display ANZ in that no region is to be determined and a region-independent representation is to be used.
  • the user may be given an indication in the ANZ opportunity to reenter the R0 region.
  • the receiver should store the contents of the dynamic database LST in a non-volatile memory MEM, so that the last stored database MEM can be compared after startup with the newly received database LST from the controller STEU.
  • the saving should not take place if no transmitter is present, but only if there is a minimum number of MIN of (last received) RDS stations in the database. This ensures that special parking situations in a non-receiving environment (eg in the parking garage) are stored as a reference for the transmitter landscape of the environment.
  • the controller STEU should search the tape using the tuner TUN and build a new dynamic database LST and with the stored database Compare contents in terms of content as soon as there are a minimum number of MIN of senders in the dynamic database LST.
  • the STEU control determines that the receive frequency and PI code match for at least one entry in LST and MEM (except for the region code, ie the 2nd hex digit in the PI code), then the last determined region R is retained. Otherwise, the region R is discarded and no valid region information is signaled to the display ANZ or further processing WZ and proceeded according to case 1 on.
  • certain geographically unique reception situations can also be used for national region determination. So z. B. Portugal (with country code "D”) to Romania (with national code "E”), which is the case for no other countries with the two country codes "D" and "E”.
  • the control STEU should in each case query the country code Ni with the most entries in the dynamic database LST for the associated possible countries R1, R2... Rn from the geographical database DB. If stations with other country codes Nj are received and entered into the list LST, the controller STEU in each case queries the geographical database DB for the possible countries R1, R2... Rn as to whether a neighboring country is entered for the country code Nj. If this is not the case, this country can be excluded for the current region R of the recipient and will not be considered further. This process continues until only one candidate for the current country R remains. The leftover country is then set as the current Region R, and the region tracking continues as previously described. Thus, from a unique sequence of country codes in the dynamic database LST, the current region R can be determined without user input.
  • the geographic size of a national area can be stored in database DB in order to exclude very small countries (eg Liechtenstein or Andorra) or small island countries (eg Monaco, Italian) from the current region R and thus confuse them to reduce.
  • very small countries eg Liechtenstein or Andorra
  • small island countries eg Monaco, Italian
  • a country is separated from another country by a non-passable obstacle (eg a large body of water) and can only be reached by ferry or DB Autozug.
  • the controller STEU considers this country as a neighbor for a possible reception, but it is excluded as the current region R, in which the receiver can move during a journey.
  • the controller STEU allows such a transition (once), since typically the vehicle is off when it is being moved by a ferry or the car.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
EP15152432.9A 2014-01-29 2015-01-26 Système et procédé de reconnaissance de régions géographiques pour récepteur mobile et procédé Withdrawn EP2903188A1 (fr)

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Application Number Priority Date Filing Date Title
DE102014201602.9A DE102014201602A1 (de) 2014-01-29 2014-01-29 System und Verfahren zur Erkennung geographischer Regionen für mobile Empfänger und Verfahren

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EP2903188A1 true EP2903188A1 (fr) 2015-08-05

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412286A2 (fr) 1989-08-08 1991-02-13 Robert Bosch Gmbh Méthode de reproduction sélective suivant l'itinéraire de messages numériques routiers transmis d'un émetteur vers un récepteur pour véhicule ainsi que récepteur pour véhicule
EP0429000A2 (fr) 1989-11-20 1991-05-29 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig GmbH & Co. KG Récepteur radio avec RDS pourvu d'un dispositif d'interprétation des données de RDS selon les spécifications nationales
DE3942339C2 (fr) 1989-12-21 1993-09-23 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Hollaend. Stiftung & Co Kg, 90762 Fuerth, De
EP0499608B1 (fr) 1989-11-03 1996-01-03 Robert Bosch Gmbh Recepteur radio, en particulier autoradio
DE4425194A1 (de) 1994-07-16 1996-01-18 Bosch Gmbh Robert Verfahren und Vorrichtung zur Bestimmung des Standortes eines Rundfunkempfängers
EP0762679A1 (fr) * 1995-09-08 1997-03-12 Robert Bosch Gmbh Méthode et dispositif pour la détermination de la position géographique d'un récepteur de radiodiffusion
EP0866576A2 (fr) 1997-03-20 1998-09-23 GRUNDIG Aktiengesellschaft Récepteur RDS pour l'évaluation de messages d'information routière
US20100197255A1 (en) * 2009-02-05 2010-08-05 Panasonic Automotive Systems Company Of America, Division Of Panasonic Corporation Of North America Method and apparatus for dynamic station preset configuration in a radio
EP2281177B1 (fr) 2008-05-29 2011-12-21 TomTom International B.V. Dispositif de navigation portatif, appareil de communication électronique, et procédé de production d'information de système de données correspondant

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412286A2 (fr) 1989-08-08 1991-02-13 Robert Bosch Gmbh Méthode de reproduction sélective suivant l'itinéraire de messages numériques routiers transmis d'un émetteur vers un récepteur pour véhicule ainsi que récepteur pour véhicule
EP0499608B1 (fr) 1989-11-03 1996-01-03 Robert Bosch Gmbh Recepteur radio, en particulier autoradio
EP0429000A2 (fr) 1989-11-20 1991-05-29 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig GmbH & Co. KG Récepteur radio avec RDS pourvu d'un dispositif d'interprétation des données de RDS selon les spécifications nationales
DE3942339C2 (fr) 1989-12-21 1993-09-23 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Hollaend. Stiftung & Co Kg, 90762 Fuerth, De
DE4425194A1 (de) 1994-07-16 1996-01-18 Bosch Gmbh Robert Verfahren und Vorrichtung zur Bestimmung des Standortes eines Rundfunkempfängers
EP0762679A1 (fr) * 1995-09-08 1997-03-12 Robert Bosch Gmbh Méthode et dispositif pour la détermination de la position géographique d'un récepteur de radiodiffusion
EP0866576A2 (fr) 1997-03-20 1998-09-23 GRUNDIG Aktiengesellschaft Récepteur RDS pour l'évaluation de messages d'information routière
EP2281177B1 (fr) 2008-05-29 2011-12-21 TomTom International B.V. Dispositif de navigation portatif, appareil de communication électronique, et procédé de production d'information de système de données correspondant
US20100197255A1 (en) * 2009-02-05 2010-08-05 Panasonic Automotive Systems Company Of America, Division Of Panasonic Corporation Of North America Method and apparatus for dynamic station preset configuration in a radio

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