EP0753223A1 - Method of tuning a mobile radio receiver to radio broadcasting programmes carrying traffic information - Google Patents

Method of tuning a mobile radio receiver to radio broadcasting programmes carrying traffic information

Info

Publication number
EP0753223A1
EP0753223A1 EP95935832A EP95935832A EP0753223A1 EP 0753223 A1 EP0753223 A1 EP 0753223A1 EP 95935832 A EP95935832 A EP 95935832A EP 95935832 A EP95935832 A EP 95935832A EP 0753223 A1 EP0753223 A1 EP 0753223A1
Authority
EP
European Patent Office
Prior art keywords
radio receiver
determined
transmitter
program identification
received
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.)
Ceased
Application number
EP95935832A
Other languages
German (de)
French (fr)
Inventor
Dietmar Kell
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.)
Robert Bosch GmbH
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 EP0753223A1 publication Critical patent/EP0753223A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H04H20/55—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for traffic information
    • 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
    • H04H60/37—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 segments of broadcast information, e.g. scenes or extracting programme ID
    • 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
    • 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]

Definitions

  • the invention relates to a method for setting a mobile radio receiver to transmitters with information relevant to the respective position of the radio receiver, preferably traffic information, and to a radio receiver with automatic adjustment to transmitters with information relevant to the respective position of the radio receiver.
  • Each transmitter digitally transmits a transmitter identifier that allows the transmitter to be clearly identified.
  • RDS radio data information
  • PI code program identification code
  • the PI code contains information about the country in which the station is located and an individual number for each program that the station broadcasts.
  • the object of the present invention is to provide a method and a radio receiver in which the traffic information relevant to the respective position and possibly other information are provided without special manipulations by the user.
  • This object is achieved in the method according to the invention in that the respective position of the radio receiver is determined, that input variables dependent on the determined position are used to read out from a stored list as output variables (program identification codes) which transmitters have information relevant to the determined position mark, and that the radio receiver on a transmitter with one of the read transmitter IDs (program identification codes) is set.
  • the method according to the invention has the advantage that only the transmitters relevant to the area in which the radio receiver is located are received. If these are several transmitters, the user can make a selection.
  • the position of the radio receiver can be determined in various ways in the method according to the invention. In addition to a determination of the position by a suitable device, for example a GPS receiver, the position can also be entered manually.
  • the set frequency and the transmitter identifier received in the process are compared with frequencies and transmitter identifiers stored in a memory, which are arranged according to regions, and that the region in which the received transmitter is located is determined Transmitter is located and this is assumed as a position that if several areas are determined, the category of the received transmitter is evaluated and these areas are assumed as a position if the highest category received is assigned to this transmitter, otherwise the radio receiver to another Frequency is switched through which the number of certain areas is reduced, that with the help of the received Transmitter identification determines the area in which the set transmitter is located and that the process is repeated until a clear area is determined or the finest resolution, characterized by frequencies with the highest category, has been evaluated.
  • Another further development of the method according to the invention consists in the fact that the input variables depend on further data that can be input via operating elements. In this way, the user can reduce the amount of stations received or intended for reception. For example, in the border area from one federal state to another, the selection of the transmitters can be limited to the transmitters of the federal state into which the user is driving.
  • Program identification codes are compared with the read program identification codes and that if one of the read program identification codes is the same
  • a forward-looking setting is possible in the method according to the invention in that when the input variables are formed, a movement of the radio receiver measured by comparing several positions determined at different times is taken into account in such a way that transmitters are set with information which is relevant for an area lying in the direction of movement .
  • a receiving part with an output which is connected to a radio data signal decoder
  • a computer for controlling the receiving part including a station search, for evaluating the decoded radio data signal, for forming the input variables from the positions obtained by the device for determining the position and for querying the program identification codes as a function of the input variables formed.
  • Various known devices up to GPS receivers can be used as a device for determining the position of the radio receiver.
  • a suitable method and a suitable device for determining the location of a radio receiver is in the earlier patent application P 44 25 194 of the applicant described.
  • a further development of the radio receiver according to the invention with which the selection of the transmitters can be influenced manually, consists in operating elements via which further data can be entered, on which the input variables depend.
  • radio receiver Another development of the radio receiver according to the invention consists in the fact that instead of the input variables dependent on the position of the radio receiver, data can be entered which identify a geographic area which is independent of the respective position. In this way, the user can, for example, enter a geographical area in which he may only be in hours and whose traffic situation he is already interested in.
  • the need to store program identification codes of all the countries in question is provided for the list to be stored on an exchangeable data carrier, in particular a chip card.
  • Fig. 1 is a block diagram with the modules required to explain the invention of a radio receiver according to the invention, in which the respective position is determined by a separate device, and Fig. 2 shows a receiver according to the invention, in which the respective position is determined from the respectively received transmitters.
  • the signal received by the antenna 1 is fed to an input part 2, at the output 3 of which a stereo multiplex signal MPX can be removed.
  • the stereo multiplex signal is fed to a stereo decoder 4, from the outputs of which the audio signals L and R can be removed and are passed through loudspeakers 7, 8 to amplifiers 5, 6.
  • An ARI / RDS decoder 9 is also connected to the output 3 of the receiving part 2, the output signal RDS of which is fed to a microcomputer 10, with the aid of which essential functions of the radio receiver according to the invention can be controlled.
  • the receiving part 2 is controlled by the microcomputer 10 with respect to the transmitter setting.
  • the microcomputer 10 is connected to a display device 11 (display) and an input unit 12.
  • a device 13 for determining the position and a memory 14 with a list are also connected to the microcomputer 10, in which the program identification codes Pl of those transmitters are stored which transmit traffic information which for each area G of Are interested. Furthermore, the list contains the boundaries of the individual areas, for example in the form of maximum and minimum values of the coordinates - designated as xm and ym in FIG. 1.
  • the device 13 continuously generates coordinates x, y, which change according to the movement of the vehicle or the radio receiver.
  • the microcomputer 10 compares the coordinates with the minimum and maximum coordinates stored in the list 14 for the individual areas G, so that the area G in which the respective coordinates x, y fall is determined.
  • the direction of movement can also be taken into account by forming the difference between successively determined coordinates x, y. This leads, for example, to the fact that when the radio receiver moves in the direction of a boundary of an area G, the area closest in this direction is already taken into account in the transmitter setting.
  • program identification codes for this area are read from the list 14.
  • program identification codes 1, 2 or 3 transmit relevant information for an area G1.
  • area G2 it is the transmitters with program identification code 2, 4 or 5, in area G3 the transmitters with program identification code 4, 5 or 6.
  • the microcomputer 10 controls the receiving part 2 into the station search, where only stations which transmit traffic information are possibly taken into account.
  • the program identification code received with this transmitter is compared with that read from list 14. If they do not match, the search is started again; if they match, the set station is received until further notice. 2, the position of the radio receiver is determined by trial-and-error reception of one or more transmitters. For this purpose, the receivable transmitters with their frequency, their are in a list 15 for each of the areas in question
  • Program identification code filed with a category and with a class.
  • the category represents a division of the stations depending on the extent to which the respective station covers the area concerned.
  • the class denotes the transmission power and thus essentially the range of the transmitter.
  • one of the areas G is determined using the table 15. The procedure is gradual so that as few transmitters as possible can be received for trial purposes. If, for example, after receiving a transmitter, it is certain that this transmitter can only be received in one of the areas, the position or the area G is determined. If the reception of a station permits the conclusion of several areas, further stations are checked taking into account their category and their class until one of the areas is clearly identified. Broadcasters are considered regardless of whether or not they send relevant information for the respective area.
  • one or more PI codes are read from the list 14 and used to set the transmitter - as already described in connection with FIG. 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

In a process for tuning a mobile radio receiver to transmitters broadcasting information, preferably traffic information, relevant to the particular position of the receiver, the position of the radio receiver at the time is determined. Input values dependent on the position determined are used to readout output values (programme identification codes) from a stored list which are characteristic of those transmitters which have information relevant to the position determined. The radio receiver is tuned to a transmitter with one of those transmitter identifications (programme identification codes).

Description

VERFAHREN ZUR EINSTELLUNG EINES MOBILEN RUNDFUNKEMPFÄNGERS AUF RUNDFUNKPROGRAMME MIT VERKEHRSINFORMATION METHOD FOR SETTING A MOBILE BROADCAST RECEIVER ON BROADCASTING PROGRAMS WITH TRAFFIC INFORMATION
Die Erfindung betrifft ein Verfahren zur Einstellung eines mobilen Rundfunkempfängers auf Sender mit für die jeweilige Position des Rundfunkempfängers relevanten Informationen, vorzugsweise VerkehrsInformationen, und einen Rundfunkempfänger mit automatischer Einstellung auf Sender mit für die jeweilige Position des Rundfunkempfängers relevanten Informationen.The invention relates to a method for setting a mobile radio receiver to transmitters with information relevant to the respective position of the radio receiver, preferably traffic information, and to a radio receiver with automatic adjustment to transmitters with information relevant to the respective position of the radio receiver.
Bei der Fülle der in einem Land, wie der Bundesrepublik Deutschland, gesendeten Verkehrsinformationen ist es für einen Autofahrer wichtig, möglichst nur die ihn betreffenden Informationen zu empfangen. Bei längeren Fahrten, gegebenenfalls durch mehrere Bundesländer, ist daher eine Umstellung des Autoradios auf andere Sender erforderlich. Bei den bekannten Autoradios erfolgt diese Umstellung per Hand, gegebenenfalls nach am Rande der Autobahn angebrachten Tafeln, die auf die Frequenzen derjenigen Sender hinweisen, welche Verkehrsinformationen für das jeweilige Gebiet senden. Eine Hilfe bei dieser Einstellung stellt das weit verbreitete Verkehrsfunksystem dar, bei welchem Sender, die Verkehrsinformationen senden, Kennsignale ausstrahlen. Beim Suchen von Sendern wird bei Autoradios mit geeignetem Decoder dann nur bei Verkehrsfunksendern angehalten. Außerdem wird noch ein Bereichskennsignal übertragen. Dieses bewirkt, daß der Suchlauf nur angehalten wird, wenn ein Sender empfangen wird, der Verkehrsinformationen für ein zuvor am Autoradio eingestelltes Gebiet ausstrahlt. Diese bekannten Einrichtungen erleichtern zwar das Einstellen der Sender, benötigen jedoch ein Mindestmaß an Aufmerksamkeit, was der Verkehrssicherheit abträglich ist.Given the abundance of traffic information sent in a country such as the Federal Republic of Germany, it is important for a driver to only receive the information that concerns him. For longer journeys, possibly through several federal states, it is therefore necessary to switch the car radio to other stations. In the known car radios, this changeover is carried out by hand, if necessary according to signs attached to the edge of the motorway, which indicate the frequencies of the transmitters which transmit traffic information for the respective area. An aid to this setting is the widely used traffic radio system, for which station that Send traffic information, broadcast identification signals. When searching for stations, car radios with a suitable decoder are only stopped at traffic information stations. An area identification signal is also transmitted. This means that the search is only stopped when a station is being received that broadcasts traffic information for a region previously set on the car radio. Although these known devices facilitate the tuning of the transmitters, they require a minimum of attention, which is detrimental to traffic safety.
Jeder Sender überträgt digital eine Senderkennung, die eine eindeutige Identifizierung des Senders zuläßt. In Europa übertragen nahezu alle Sender sogenannte Radio-Daten-Informationen (RDS), unter denen auch ein sogenannter Programmidentifikations-Code (Pl-Code) ist, der eine eindeutige Senderidentifikation ermöglicht. Der Pl-Code enthält Informationen über das Land, in dem der Sender steht, und eine individuelle Nummer für jedes Programm, das der Sender ausstrahlt. Der Radio-Daten-Service umfaßt ferner einen Verkehrsfunkkanal (TMC = Traffic Message Channel), über welchen aktuelle Verkehrsmeldungen verbreitet werden.Each transmitter digitally transmits a transmitter identifier that allows the transmitter to be clearly identified. In Europe, almost all transmitters transmit so-called radio data information (RDS), which also includes a so-called program identification code (PI code), which enables unique station identification. The PI code contains information about the country in which the station is located and an individual number for each program that the station broadcasts. The radio data service also includes a traffic radio channel (TMC = Traffic Message Channel), via which current traffic reports are broadcast.
Aufgabe der vorliegenden Erfindung ist es, ein Verfahren und einen Rundfunkempfänger anzugeben, bei welchem die für die jeweilige Position relevanten Verkehrsinformationen und gegebenenfalls andere Informationen ohne besondere Manipulationen des Benutzers bereitgestellt werden. Diese Aufgabe wird bei dem erfindungsgemäßen Verfahren dadurch gelöst, daß die jeweilige Position des Rundfunkempfängers ermittelt wird, daß mit von der ermittelten Position abhängigen Eingangsgrößen aus einer gespeicherten Liste als Ausgangsgrößen (Programmidentifikations-Codes) ausgelesen werden, welche Sender mit für die ermittelte Position relevanten Informationen kennzeichnen, und daß der Rundfunkempfänger auf einen Sender mit einer der ausgelesenen Senderkennungen (Programmidentifikations-Codes) eingestellt wird.The object of the present invention is to provide a method and a radio receiver in which the traffic information relevant to the respective position and possibly other information are provided without special manipulations by the user. This object is achieved in the method according to the invention in that the respective position of the radio receiver is determined, that input variables dependent on the determined position are used to read out from a stored list as output variables (program identification codes) which transmitters have information relevant to the determined position mark, and that the radio receiver on a transmitter with one of the read transmitter IDs (program identification codes) is set.
Das erfindungsgemäße Verfahren hat den Vorteil, daß nur die für das Gebiet, in welchem sich der Rundfunkempfänger befindet, relevante Sender empfangen werden. Sind dieses mehrere Sender, so kann eine Auswahl vom Benutzer getroffen werden.The method according to the invention has the advantage that only the transmitters relevant to the area in which the radio receiver is located are received. If these are several transmitters, the user can make a selection.
Die Ermittlung der Position des Rundfunkempfängers kann bei dem erfindungsgemäßen Verfahren auf verschiedene Weise erfolgen. Außer einer Ermittlung der Position durch eine geeignete Einrichtung, beispielsweise einen GPS-Empfänger, ist an sich auch eine manuelle Eingabe der Position möglich.The position of the radio receiver can be determined in various ways in the method according to the invention. In addition to a determination of the position by a suitable device, for example a GPS receiver, the position can also be entered manually.
Eine automatische Ermittlung der Position ohne zusätzliche Geräte, Sensoren und dergleichen ist gemäß einer Weiterbildung der Erfindung dadurch möglich, daß aus den jeweils empfangbaren Sendern auf die Position bzw. ein Gebiet, in dem sich der Rundfunkempfänger befindet, geschlossen werden kann.An automatic determination of the position without additional devices, sensors and the like is possible according to a further development of the invention in that the position or an area in which the radio receiver is located can be inferred from the respective receivable transmitters.
Dazu ist bei einer vorteilhaften Weiterbildung des erfindungsgemäßen Verfahrens vorgesehen, daß die eingestellte Frequenz und die dabei empfangene Senderkennung mit in einem Speicher abgelegten Frequenzen und Senderkennungen, die nach Gebiete geordnet sind, verglichen werden, und daß dasjenige Gebiet bestimmt wird, in dem sich der empfangene Sender befindet und dieses als Position angenommen wird, daß dann, wenn mehrere Gebiete ermittelt werden, die Kategorie des empfangenen Senders ausgewertet wird und diese Gebiete als Position angenommen werden, wenn die höchste empfangene Kategorie diesem Sender zugeordnet wird, daß ansonsten der Rundfunkempfänger auf eine weitere Frequenz geschaltet wird, durch die die Zahl der bestimmten Gebiete reduziert wird, daß mit Hilfe der empfangenen Senderkennung das Gebiet bestimmt wird, in dem sich der eingestellte Sender befindet, und daß der Vorgang wiederholt wird, bis ein eindeutiges Gebiet bestimmt ist oder die feinste Auflösung, gekennzeichnet durch Frequenzen mit der höchsten Kategorie, ausgewertet wurde.For this purpose, in an advantageous further development of the method according to the invention, it is provided that the set frequency and the transmitter identifier received in the process are compared with frequencies and transmitter identifiers stored in a memory, which are arranged according to regions, and that the region in which the received transmitter is located is determined Transmitter is located and this is assumed as a position that if several areas are determined, the category of the received transmitter is evaluated and these areas are assumed as a position if the highest category received is assigned to this transmitter, otherwise the radio receiver to another Frequency is switched through which the number of certain areas is reduced, that with the help of the received Transmitter identification determines the area in which the set transmitter is located and that the process is repeated until a clear area is determined or the finest resolution, characterized by frequencies with the highest category, has been evaluated.
Eine andere Weiterbildung des erfindungsgemäßen Verfahrens besteht darin, daß die Eingangsgrößen von weiteren Daten abhängen, die über Bedienelemente eingebbar sind. Hierdurch kann vom Benutzer die Menge der empfangenen bzw. zum Empfang vorgesehenen Sender verringert werden. So kann beispielsweise im Grenzbereich von einem Bundesland zu einem anderen die Auswahl der Sender auf die Sender desjenigen Bundeslandes beschränkt werden, in das der Benutzer hineinfährt.Another further development of the method according to the invention consists in the fact that the input variables depend on further data that can be input via operating elements. In this way, the user can reduce the amount of stations received or intended for reception. For example, in the border area from one federal state to another, the selection of the transmitters can be limited to the transmitters of the federal state into which the user is driving.
Bei einer vorteilhaften Ausführungsform des erfindungsgemäßen Verfahrens ist vorgesehen, daß zur Einstellung von Sendern mit einem der ausgelesenen Programmidentifikations-Codes ein Sendersuchlauf gestartet wird, daß die dabei empfangenenIn an advantageous embodiment of the method according to the invention it is provided that in order to tune in stations with one of the program identification codes read out, a station search is started so that those received
Programmidentifikations-Codes mit den ausgelesenen Programmidentifikations-Codes verglichen werden und daß bei Gleichheit eines der ausgelesenen Programmidentifikations-Codes mit demProgram identification codes are compared with the read program identification codes and that if one of the read program identification codes is the same
Programmidentifikations-Code des jeweils empfangenen Senders der Sendersuchlauf angehalten wird.Program identification code of the station received in each case the station search is stopped.
Hierdurch wird die weitere Auswahl von mehreren automatisch ausgewählten Sendern durch den Benutzer besonders vereinfacht - indem er nämlich lediglich bei Nichtinteresse an einem Sender einen Knopf zu drücken braucht.This particularly simplifies the further selection of several automatically selected transmitters by the user - in that he only has to press a button when there is no interest in a transmitter.
Eine andere Weiterbildung des erfindungsgemäßen Verfahrens besteht darin, daß zur Berechnung der Eingangsgrößen aus den ermittelten Positionen Positionsbereiche zu jeweils einer Eingangsgröße zusammengefaßt werden. Hierdurch wird neben einer Verkleinerung der Tabelle erreicht, daß die Auswahl der Sender nicht unnötig oft geändert wird.Another development of the method according to the invention consists in that position ranges for one each are used to calculate the input variables from the determined positions Input variable can be summarized. In addition to reducing the size of the table, this means that the selection of the channels is not changed unnecessarily often.
Eine vorausschauende Einstellung ist bei dem erfindungsgemäßen Verfahren dadurch möglich, daß bei der Bildung der Eingangsgrößen eine durch Vergleich mehrerer zu verschiedenen Zeitpunkten ermittelten Positionen gemessene Bewegung des Rundfunkempfängers derart berücksichtigt wird, daß Sender mit Informationen eingestellt werden, die für ein in Bewegungsrichtung liegendes Gebiet relevant sind.A forward-looking setting is possible in the method according to the invention in that when the input variables are formed, a movement of the radio receiver measured by comparing several positions determined at different times is taken into account in such a way that transmitters are set with information which is relevant for an area lying in the direction of movement .
Ein erfindungsgemäßer Rundfunkempfänger ist gekennzeichnet durchA radio receiver according to the invention is characterized by
- eine Einrichtung zur Ermittlung der Position des Empfängers,a device for determining the position of the recipient,
- eine gespeicherte Liste, welche die Zuordnung von Programmidentifikations-Codes zu von den möglichen Positionen des Rundfunkempfängers abhängigen Eingangsgrößen enthält,a stored list which contains the assignment of program identification codes to input variables dependent on the possible positions of the radio receiver,
- einen Empfangsteil mit einem Ausgang, der mit einem Radio-Daten-Signal-Decoder verbunden ist, und- A receiving part with an output, which is connected to a radio data signal decoder, and
- einen Computer zur Steuerung des Empfangsteils einschließlich eines Sendersuchlaufs, zur Auswertung des decodierten Radio-Daten-Signals, zur Bildung der Eingangsgrößen aus den von der Einrichtung zur Positionsbestimmung erhaltenen Positionen und zur Abfrage der Programmidentifikations-Codes in Abhängigkeit von den gebildeten Eingangsgrößen.- A computer for controlling the receiving part including a station search, for evaluating the decoded radio data signal, for forming the input variables from the positions obtained by the device for determining the position and for querying the program identification codes as a function of the input variables formed.
Als Einrichtung zur Ermittlung der Position des Rundfunkempfängers können verschiedene bekannte Einrichtungen bishin zu GPS-Empfängern verwendet werden. Ein geeignetes Verfahren und eine geeignete Vorrichtung zur Bestimmung des Standortes eines Rundfunkempfängers ist in der älteren Patentanmeldung P 44 25 194 der Anmelderin beschrieben.Various known devices up to GPS receivers can be used as a device for determining the position of the radio receiver. A suitable method and a suitable device for determining the location of a radio receiver is in the earlier patent application P 44 25 194 of the applicant described.
Eine Weiterbildung des erfindungsgemäßen Rundfunkempfängers, mit welcher die Auswahl der Sender manuell beeinflußbar ist, besteht in Bedienelementen, über welche weitere Daten eingebbar sind, von denen die Eingangsgrößen abhängen.A further development of the radio receiver according to the invention, with which the selection of the transmitters can be influenced manually, consists in operating elements via which further data can be entered, on which the input variables depend.
Eine andere Weiterbildung des erfindungsgemäßen Rundfunkempfängers besteht darin, daß anstelle der von der Position des Rundfunkempfängers abhängigen Eingangsgrößen Daten eingebbar sind, die ein von der jeweiligen Position unabhängiges geografisches Gebiet kennzeichnen. Hierdurch kann der Benutzer beispielsweise ein geografisches Gebiet eingeben, in den er vielleicht erst in Stunden gerät und für dessen Verkehrssituation er sich bereits jetzt interessiert.Another development of the radio receiver according to the invention consists in the fact that instead of the input variables dependent on the position of the radio receiver, data can be entered which identify a geographic area which is independent of the respective position. In this way, the user can, for example, enter a geographical area in which he may only be in hours and whose traffic situation he is already interested in.
Um einen erfindungsgemäßen Rundfunkempfänger in mehreren Ländern benutzbar zu machen, ohne dieIn order to make a radio receiver according to the invention usable in several countries without the
Programmidentifikations-Codes aller in Frage kommender Länder abspeichern zu müssen, ist bei einer vorteilhaften Ausführungsform vorgesehen, daß die Liste auf einem austauschbaren Datenträger, insbesondere einer Chipcard, gespeichert ist.In an advantageous embodiment, the need to store program identification codes of all the countries in question is provided for the list to be stored on an exchangeable data carrier, in particular a chip card.
Ausführungsbeispiele der Erfindung sind in der Zeichnung anhand mehrerer Figuren dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigt:Exemplary embodiments of the invention are shown in the drawing using several figures and are explained in more detail in the following description. It shows:
Fig. 1 ein Blockschaltbild mit den zur Erläuterung der Erfindung erforderlichen Baugruppen eines erfindungsgemäßen Rundfunkempfängers, bei welchem die jeweilige Position von einer separaten Einrichtung ermittelt wird, und Fig. 2 einen erfindungsgemäßen Empfänger, bei welchem die jeweilige Position aus den jeweils empfangenen Sendern ermittelt wird.Fig. 1 is a block diagram with the modules required to explain the invention of a radio receiver according to the invention, in which the respective position is determined by a separate device, and Fig. 2 shows a receiver according to the invention, in which the respective position is determined from the respectively received transmitters.
Gleiche Teile sind in den Figuren mit gleichen Bezugszeichen versehen.Identical parts are provided with the same reference symbols in the figures.
Bei den in den Figuren 1 und 2 dargestellten Rundfunkempfängern wird das von der Antenne 1 empfangene Signal einem Eingangsteil 2 zugeführt, an dessen Ausgang 3 ein Stereo-Multiplexsignal MPX abnehmbar ist. In an sich bekannter Weise wird das Stereo-Multiplexsignal einem Stereo-Decoder 4 zugeführt, von dessen Ausgängen die Audiosignale L und R abnehmbar sind und über Verstärker 5, 6 Lautsprechern 7, 8 zugeleitet werden.In the radio receivers shown in FIGS. 1 and 2, the signal received by the antenna 1 is fed to an input part 2, at the output 3 of which a stereo multiplex signal MPX can be removed. In a manner known per se, the stereo multiplex signal is fed to a stereo decoder 4, from the outputs of which the audio signals L and R can be removed and are passed through loudspeakers 7, 8 to amplifiers 5, 6.
An den Ausgang 3 des Empfangsteils 2 ist ferner ein ARI/RDS-Decoder 9 angeschlossen, dessen Ausgangssignal RDS einem Mikrocomputer 10 zugeleitet wird, mit dessen Hilfe wesentliche Funktionen des erfindungsgemäßen Rundfunkempfängers steuerbar sind. Unter anderem wird vom Mikrocomputer 10 auch das Empfangsteil 2 bezüglich der Sendereinstellung gesteuert. Der Mikrocomputer 10 ist mit einer Anzeigevorrichtung 11 (Display) und einer Eingabeeinheit 12 verbunden.An ARI / RDS decoder 9 is also connected to the output 3 of the receiving part 2, the output signal RDS of which is fed to a microcomputer 10, with the aid of which essential functions of the radio receiver according to the invention can be controlled. Among other things, the receiving part 2 is controlled by the microcomputer 10 with respect to the transmitter setting. The microcomputer 10 is connected to a display device 11 (display) and an input unit 12.
Bei dem Rundfunkempfänger nach Fig. 1 sind an den Mikrocomputer 10 ferner eine Einrichtung 13 zur Positionsbestimmung und ein Speicher 14 mit einer Liste angeschlossen, in welche die Programmidentifikations-Codes Pl derjenigen Sender abgelegt sind, welche Verkehrsinformationen senden, die für jeweils ein Gebiet G von Interesse sind. Ferner enthält die Liste die Grenzen der einzelnen Gebiete, beispielsweise in Form von Maximal- und Minimalwerten der Koordinaten - in Fig. 1 als xm und ym bezeichnet. Die Einrichtung 13 erzeugt laufend Koordinaten x, y, die sich entsprechend der Bewegung des Fahrzeugs bzw. des Rundfunkempfängers ändern. Der Mikrocomputer 10 vergleicht die Koordinaten mit in der Liste 14 zu den einzelnen Gebieten G gespeicherten Minimal- und Maximalkoordinaten, so daß das Gebiet G ermittelt wird, in welches die jeweiligen Koordinaten x, y fallen. Dabei kann auch die Bewegungsrichtung durch Differenzbildung zwischen aufeinanderfolgend ermittelten Koordinaten x, y berücksichtigt werden. Dieses führt beispielsweise dazu, daß bei einer Bewegung des Rundfunkempfängers in Richtung auf eine Grenze eines Gebietes G bereits das in dieser Richtung nächstliegende Gebiet bei der Sendereinstellung berücksichtigt wird.In the radio receiver according to FIG. 1, a device 13 for determining the position and a memory 14 with a list are also connected to the microcomputer 10, in which the program identification codes Pl of those transmitters are stored which transmit traffic information which for each area G of Are interested. Furthermore, the list contains the boundaries of the individual areas, for example in the form of maximum and minimum values of the coordinates - designated as xm and ym in FIG. 1. The device 13 continuously generates coordinates x, y, which change according to the movement of the vehicle or the radio receiver. The microcomputer 10 compares the coordinates with the minimum and maximum coordinates stored in the list 14 for the individual areas G, so that the area G in which the respective coordinates x, y fall is determined. The direction of movement can also be taken into account by forming the difference between successively determined coordinates x, y. This leads, for example, to the fact that when the radio receiver moves in the direction of a boundary of an area G, the area closest in this direction is already taken into account in the transmitter setting.
Nachdem das Gebiet G wie beschrieben ermittelt wurde, werden für dieses Gebiet Programmidentifikations-Codes aus der Liste 14 ausgelesen. Bei dem in Fig. 1 beispielhaft dargestellten Ausschnitt einer Liste wird angenommen, daß für ein Gebiet G1 diejenigen Sender relevante Informationen senden, welche den Programmidentifikations-Code 1 , 2 oder 3 aufweisen. Bei dem Gebiet G2 sind es die Sender mit dem Programmidentifikations-Code 2, 4 oder 5, bei dem Gebiet G3 die Sender mit dem Programmidentifikations-Code 4, 5 oder 6.After the area G has been determined as described, program identification codes for this area are read from the list 14. In the excerpt from a list shown by way of example in FIG. 1, it is assumed that those transmitters which have the program identification code 1, 2 or 3 transmit relevant information for an area G1. In area G2 it is the transmitters with program identification code 2, 4 or 5, in area G3 the transmitters with program identification code 4, 5 or 6.
Der Mikrocomputer 10 steuert dann das Empfangsteil 2 in den Sendersuchlauf, wobei gegebenenfalls nur Sender berücksichtigt werden, welche Verkehrsinformationen übertragen. Sobald der Suchlauf bei einem Sender angehalten hat, wird der mit diesem Sender empfangene Programmidentifikations-Code mit den aus der Liste 14 ausgelesenen verglichen. Bei Nichtübereinstimmung wird der Suchlauf wieder gestartet, bei Übereinstimmung wird der eingestellte Sender bis auf weiteres empfangen. Bei dem Ausführungsbeispiel nach Fig. 2 wird die Position des Rundfunkempfängers durch einen probehalber Empfang eines oder mehrerer Sender ermittelt. Dazu sind in einer Liste 15 für jedes der in Frage kommenden Gebiete die empfangbaren Sender mit ihrer Frequenz, ihremThe microcomputer 10 then controls the receiving part 2 into the station search, where only stations which transmit traffic information are possibly taken into account. As soon as the search has stopped at a transmitter, the program identification code received with this transmitter is compared with that read from list 14. If they do not match, the search is started again; if they match, the set station is received until further notice. 2, the position of the radio receiver is determined by trial-and-error reception of one or more transmitters. For this purpose, the receivable transmitters with their frequency, their are in a list 15 for each of the areas in question
Programmidentifikations-Code, mit einer Kategorie und mit einer Klasse abgelegt. Die Kategorie stellt eine Einteilung der Sender in Abhängigkeit davon dar, in wieweit der jeweilige Sender das betroffene Gebiet abdeckt. Die Klasse bezeichnet die Sendeleistung und damit im wesentlichen die Senderreichweite.Program identification code, filed with a category and with a class. The category represents a division of the stations depending on the extent to which the respective station covers the area concerned. The class denotes the transmission power and thus essentially the range of the transmitter.
Durch einen probehalber Empfang verschiedener Sender wird anhand der Tabelle 15 eines der Gebiete G ermittelt. Dabei wird schrittweise vorgegangen, so daß möglichst wenige Sender probehalber zu empfangen sind. Steht beispielsweise nach dem Empfang eines Senders fest, daß dieser Sender nur in einem der Gebiete empfangbar ist, gilt die Position bzw. das Gebiet G als ermittelt. Läßt der Empfang eines Senders den Schluß auf mehrere Gebiete zu, werden weitere Sender unter Berücksichtigung ihrer Kategorie und ihrer Klasse überprüft, bis eines der Gebiete eindeutig bestimmt ist. Dabei werden Sender unabhängig davon berücksichtigt, ob sie für das jeweilige Gebiet relevante Informationen senden oder nicht.By trial-and-error reception of various transmitters, one of the areas G is determined using the table 15. The procedure is gradual so that as few transmitters as possible can be received for trial purposes. If, for example, after receiving a transmitter, it is certain that this transmitter can only be received in one of the areas, the position or the area G is determined. If the reception of a station permits the conclusion of several areas, further stations are checked taking into account their category and their class until one of the areas is clearly identified. Broadcasters are considered regardless of whether or not they send relevant information for the respective area.
Nach der Ermittlung des Gebietes G werden aus der Liste 14 ein oder mehrere Pl-Codes ausgelesen und zur Einstellung des Senders benutzt - wie bereits im Zusammenhang mit Fig. 1 beschrieben. After the determination of the area G, one or more PI codes are read from the list 14 and used to set the transmitter - as already described in connection with FIG. 1.

Claims

Ansprüche Expectations
1. Verfahren zur Einstellung eines mobilen1. Procedure for hiring a mobile
Rundfunkempfängers auf Sender mit für die jeweilige Position des Rundfunkempfängers relevanten Informationen, vorzugsweise Verkehrsinformationen, dadurch gekennzeichnet, daß die jeweilige Position des Rundfunkempfängers ermittelt wird, daß mit von der ermittelten Position abhängigen Eingangsgrößen aus einer gespeicherten Liste als Ausgangsgrößen (Programmidentifikations-Codes) ausgelesen werden, welche Sender mit für die ermittelte Position relevanten Informationen kennzeichnen, und daß der Rundfunkempfänger auf einen Sender mit einer der ausgelesenen Senderkennungen (Programmidentifikations-Codes) eingestellt wird.Broadcast receiver on transmitter with information relevant to the respective position of the radio receiver, preferably traffic information, characterized in that the respective position of the radio receiver is determined, that input variables dependent on the determined position are read from a stored list as output variables (program identification codes), which transmitters identify information relevant to the determined position, and that the radio receiver is set to a transmitter with one of the read transmitter identifiers (program identification codes).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die jeweilige Position dadurch ermittelt wird, daß die eingestellte Frequenz und die dabei empfangene Senderkennung mit in einem Speicher abgelegten Frequenzen und Senderkennungen, die nach Gebiete geordnet sind, verglichen werden, und daß dasjenige Gebiet bestimmt wird, in dem sich der empfangene Sender befindet und dieses als Position angenommen wird, daß dann, wenn mehrere Gebiete ermittelt werden, die Kategorie des empfangenen Senders ausgewertet wird und diese Gebiete als Position angenommen werden, wenn die höchste empfangene Kategorie diesem Sender zugeordnet wird, daß ansonsten der Rundfunkempfänger auf eine weitere Frequenz geschaltet wird, durch die die Zahl der bestimmten Gebiete reduziert wird, daß mit Hilfe der empfangenen Senderkennung das Gebiet bestimmt wird, in dem sich der eingestellte Sender befindet, und daß der Vorgang wiederholt wird, bis ein eindeutiges Gebiet bestimmt ist oder die feinste Auflösung, gekennzeichnet durch Frequenzen mit der höchsten Kategorie, ausgewertet wurde.2. The method according to claim 1, characterized in that the respective position is determined in that the set frequency and the received transmitter identifier received with frequencies stored in a memory and transmitter identifiers, which are sorted by area, are compared, and that that area is determined is, in which the received transmitter is located and this is assumed as a position that, if several areas are determined, the category of the received transmitter is evaluated will and these areas are taken as a position if the highest received category is assigned to this transmitter, otherwise the radio receiver is switched to a further frequency, by which the number of certain areas is reduced, that the area is determined with the aid of the received transmitter identifier , in which the tuned station is, and that the process is repeated until a clear area is determined or the finest resolution, characterized by frequencies with the highest category, has been evaluated.
3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Eingangsgrößen von weiteren Daten abhängen, die über Bedienelemente eingebbar sind.3. The method according to any one of claims 1 or 2, characterized in that the input variables depend on further data that can be entered via control elements.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zur Einstellung von Sendern mit einem der ausgelesenen Programmidentifikations-Codes ein Sendersuchlauf gestartet wird, daß die dabei empfangenen Programmidentifikations-Codes mit den ausgelesenen Programmidentifikations-Codes verglichen werden und daß bei Gleichheit eines der ausgelesenen Programmidentifikations-Codes mit dem4. The method according to any one of claims 1 to 3, characterized in that a station search is started to tune transmitters with one of the read program identification codes, that the program identification codes received are compared with the read program identification codes and that in the case of equality one of the read program identification codes with the
Programmidentifikations-Code des jeweils empfangenen Senders der Sendersuchlauf angehalten wird.Program identification code of the station received in each case the station search is stopped.
5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zur Berechnung der Eingangsgrößen aus den ermittelten Positionen Positionsbereiche zu jeweils einer Eingangsgröße zusammengefaßt werden.5. The method according to any one of the preceding claims, characterized in that for the calculation of the input variables from the positions determined, position ranges are combined to form an input variable.
6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß bei der Bildung der Eingangsgrößen eine durch Vergleich mehrerer zu verschiedenen Zeitpunkten ermittelten Positionen gemessene Bewegung des Rundfunkempfängers derart berücksichtigt wird, daß Sender mit Informationen eingestellt werden, die für ein in Bewegungsrichtung liegendes Gebiet relevant sind.6. The method according to any one of the preceding claims, characterized in that in the formation of the input variables a measured by comparing several positions at different times Movement of the radio receiver is taken into account in such a way that transmitters are set with information which is relevant for an area lying in the direction of movement.
7. Rundfunkempfänger mit automatischer Einstellung auf Sender mit für die jeweilige Position des Rundfunkempfängers relevanten Informationen, vorzugsweise Verkehrsinformationen, gekennzeichnet durch7. Radio receiver with automatic setting to transmitters with information relevant to the respective position of the radio receiver, preferably traffic information, characterized by
- eine Einrichtung (13; 10) zur Ermittlung der Position des Empfängers,- A device (13; 10) for determining the position of the recipient,
- eine gespeicherte Liste (14), welche die Zuordnung von Programmidentifikations-Codes zu von den möglichen Positionen des Rundfunkempfängers abhängigen Eingangsgrößen enthält,a stored list (14) which contains the assignment of program identification codes to input variables dependent on the possible positions of the radio receiver,
- einen Empfangsteil (2) mit einem Ausgang (3), der mit einem Radio-Daten-Signal-Decoder (9) verbunden ist, und- A receiving part (2) with an output (3) which is connected to a radio data signal decoder (9), and
- einen Computer (10) zur Steuerung des Empfangsteils (2) einschließlich eines Sendersuchlaufs, zur Auswertung des decodierten Radio-Daten-Signals, zur Bildung der Eingangsgrößen aus den von der Einrichtung (13; 10) zur Positionsbestimmung erhaltenen Positionen und zur Abfrage der Programmidentifikations-Codes in Abhängigkeit von den gebildeten Eingangsgrößen.- A computer (10) for controlling the receiving part (2) including a station search, for evaluating the decoded radio data signal, for forming the input variables from the positions received by the device (13; 10) for determining the position and for querying the program identification -Codes depending on the input variables formed.
8. Rundfunkempfänger nach Anspruch 7, gekennzeichnet durch Bedienelemente (12), über welche weitere Daten eingebbar sind, von denen die Eingangsgrößen abhängen.8. Radio receiver according to claim 7, characterized by control elements (12), via which further data can be entered, on which the input variables depend.
9. Rundfunkempfänger nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, daß anstelle der von der Position des Rundfunkempfängers abhängigen Eingangsgrößen Daten eingebbar sind, die ein von der jeweiligen Position unabhängiges geografisches Gebiet kennzeichnen. 9. Radio receiver according to one of claims 7 or 8, characterized in that instead of the input variables dependent on the position of the radio receiver, data can be entered which identify a geographical area which is independent of the respective position.
10. Rundfunkempfänger nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß die Liste auf einem austauschbaren Datenträger, insbesondere einer Chipcard, gespeichert ist. 10. Radio receiver according to one of claims 7 to 9, characterized in that the list is stored on an exchangeable data carrier, in particular a chip card.
EP95935832A 1994-11-29 1995-11-03 Method of tuning a mobile radio receiver to radio broadcasting programmes carrying traffic information Ceased EP0753223A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4442413A DE4442413A1 (en) 1994-11-29 1994-11-29 Procedure for setting up a mobile radio receiver and radio receiver
DE4442413 1994-11-29
PCT/DE1995/001515 WO1996017450A1 (en) 1994-11-29 1995-11-03 Method of tuning a mobile radio receiver to radio broadcasting programmes carrying traffic information

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EP0753223A1 true EP0753223A1 (en) 1997-01-15

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JP (1) JP3683275B2 (en)
KR (1) KR100417320B1 (en)
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KR100417320B1 (en) 2004-04-29
JP3683275B2 (en) 2005-08-17
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KR970700965A (en) 1997-02-12
DE4442413A1 (en) 1996-05-30

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