EP1376512B1 - Méthode de transmission d'informations et récepteur d'informations - Google Patents

Méthode de transmission d'informations et récepteur d'informations Download PDF

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Publication number
EP1376512B1
EP1376512B1 EP03400038A EP03400038A EP1376512B1 EP 1376512 B1 EP1376512 B1 EP 1376512B1 EP 03400038 A EP03400038 A EP 03400038A EP 03400038 A EP03400038 A EP 03400038A EP 1376512 B1 EP1376512 B1 EP 1376512B1
Authority
EP
European Patent Office
Prior art keywords
information
transmitted
tmc
supplementary
data group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03400038A
Other languages
German (de)
English (en)
Other versions
EP1376512A3 (fr
EP1376512A2 (fr
Inventor
Arne Friedrichs
Gerd Draeger
Gerold Bertram
Volker Skwarek
Ralf Duckeck
Moez Selem
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 EP1376512A2 publication Critical patent/EP1376512A2/fr
Publication of EP1376512A3 publication Critical patent/EP1376512A3/fr
Application granted granted Critical
Publication of EP1376512B1 publication Critical patent/EP1376512B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/092—Coding or decoding of the information
    • 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
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
    • 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
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/20—Aspects of broadcast communication characterised by the type of broadcast system digital audio broadcasting [DAB]

Definitions

  • Methods are known for generating uniform traffic reports. These include, for example, the ALERT C protocol, after which the messages of the Traffic Message Channel (TMC) are generated. This protocol is optimized to minimize the message size for transmission over high bandwidth limited FM broadcast channels.
  • TMC Traffic Message Channel
  • RTM Road Traffic Message
  • the inventive method extends the existing TMC messages according to the ALERT C protocol without changing the message format so that any additional information can be assigned.
  • a traffic message is divided into a base message and an optional supplementary message.
  • the basic message corresponds completely to the ALERT-C specifications, while the supplementary message may initially include unspecified contents.
  • previously existing but unoccupied groups are used in the associated TMC base message. These are marked in the ALERT C protocol by so-called LABEL.
  • Such a message may include 12 16-bit payload data when using the label 12.
  • When using the label 15 is not yet determined how many bits may include the user data. These user data are reduced by further 4 bits according to the inventive method, whereby a so-called sub-label with another 16 states is introduced. This sub-label allows the labeling of sub-services to label 12.
  • the remaining 12 bits are used as true user data and allow, for example, a unique assignment of an optional additional message to a mandatory base message.
  • GROUPS of the Radio Data Service (RDS) protocol.
  • RDS Radio Data Service
  • application numbers or application IDs are assigned in group 3A. If such a application number is assigned to the new service, it is also possible to use the user data available there.
  • the advantage of the entire method according to the invention is that it is set up on a proven data-optimized protocol for traffic information transmission. This protocol is not modified but only extended so that there is still full backward compatibility. Only the extended message share can not be evaluated by old terminals.
  • this method can be applied to any channel on which the ALERT C protocol can be used.
  • the method according to the invention first assumes that traffic reports are generated according to the ALERT C protocol, which consist of a base message and a supplementary message.
  • the basic message corresponds to the known TMC format and is broadcast, for example, via FM-RDS services or DAB-FIC parallel to the broadcast program. These messages can thus be received in addition to the audio-radio operation.
  • the TMC messages are a highly optimized data format in which messages can be accommodated in less than 100 bits.
  • the low spatial resolution of the traffic messages which are bound to so-called place tables, proves disadvantageous. If all traffic-related road departures are to be included in such place tables, this results in an administrative burden and
  • additional information can be integrated by the method according to the invention via supplementary messages, which adds, for example via suitable georeferencing methods, a better spatial resolution to the basic message.
  • the receiving terminal which can process the enhanced traffic information service, now switches to a known supplemental TMC message extension and awaits a message corresponding to that message ID.
  • the additional channel in the same ensemble can also be decoded in parallel. This offers the advantage of faster decoding.
  • this information can be transmitted via further channels specified in the corresponding transmission medium.
  • An example of this is the 3A group of the RDS protocol, in which an application ID (AID) can be specified. If the extended TMC service is assigned its own AID, a corresponding receiver can evaluate a 3A message of the RDS protocol in the context of the extended TMC message. This message then contains the necessary additional information necessary to uniquely describe the channel on which the additional message is expected ( Figure 3). In the case of DAB, a service component is referenced in this case.
  • DAB can combine the TMC basic service and the extended TMC functionality into one DAB service.
  • the particular advantage here lies in the simple assignment of TMC basic messages and additional messages, since no 3A groups were evaluated to find the channel for the additional messages ( Figure 4).
  • the DAB TMC basic service and the DAB TMC supplementary service are implicitly linked by the DAB signaling as being in a service.
  • the shoe street in Hildesheim is to be closed on 28.11.2001 because of an event from 12: 00-16: 00 clock.
  • the following TMC message is generated for this purpose, which is referred to below as the base message:
  • a vehicle driver receives the TMC basic message with a terminal according to the invention and can decrypt the following message:
  • the device recognizes from the label 12 and the sub-label (0001 dual) in 4 bits of the 16-bit payload that there is an extended TMC message. In the remaining user data, the device further recognizes that it must be a message with the identifier 647. On a further, known channel, the terminal now calls the required additional information. The terminal now switches to another channel, which is known for the reception of TMC additional messages. There, the device waits for a message describing an event on November 28, 2001 from 12: 00-16: 00 with the ID 647 in more detail. For DAB, parallel decoding may be required. Alternatively, the wait state of the device may also be terminated by other events, such as the expiration of a timer.
  • the channel of the additional data need not be set beforehand. Instead, the RDS AID 34 has been defined in the group 3A for the extended TMC service. Following the present message, the AID 34 is now expected in the RDS group 3A, in whose user data the channel is described on which the additional information will be available. For DAB this is the Ensemble Identifier (Eld), Service Identifier (Sld) and Service Component Identifier within the Service (SCIDs) or Service Component Identifier (SCld).
  • a receiver of the invention evaluates the TMC base messages from that DAB service in combination with the TMC supplemental messages from that service.
  • the DAB service consists, for example, of a primary audio component, basic TMC component and additional TMC component.

Landscapes

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

Claims (13)

  1. Procédé de transmission d'informations,
    caractérisé en ce qu'
    on transmet les informations par groupes de données, les informations comprennent au moins une description d'événement codée transmise dans un premier groupe de données, et on transmet des informations complémentaires dans au moins un groupe de données complémentaire, le groupe de données complémentaire étant annoncé dans le premier groupe de données.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    les informations complémentaires sont transmises par un canal de transmission alternatif, et au moins un premier groupe de données, dans lequel les informations sont transmises, contient un renvoi au canal de transmission alternatif.
  3. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les informations sont transmises selon le standard TMC, de préférence par émetteur radio à ondes ultracourtes à l'intérieur du signal RDS (système de données radio), ou par émetteur radio numérique tel que DAB, DSR ou similaires, ou par radio mobile, de préférence selon le standard GSM, GPRS ou UMTS.
  4. Procédé selon la revendication 3,
    caractérisé en ce que
    les informations complémentaires sont transmises dans au moins un groupe de données RDS supplémentaire.
  5. Procédé selon la revendication 4,
    caractérisé en ce que
    les informations complémentaires sont identifiées comme informations complémentaires par une identification d'informations complémentaires appelée «label» à l'intérieur d'au moins un groupe de données supplémentaire.
  6. Procédé selon la revendication 5,
    caractérisé en ce que
    l'identification d'informations complémentaires correspond au label selon la spécification TMC ISO 14819-1 utilisé pour des messages multi-groupes.
  7. Procédé selon la revendication 4,
    caractérisé en ce que
    les informations complémentaires sont identifiées par une identification d'informations complémentaires élargie, comprenant une identification d'informations complémentaires appelée « label » et par une sous-identification d'informations complémentaires appelée « sous-label » à l'intérieur d'au moins un groupe de données supplémentaire.
  8. Procédé selon la revendication 7,
    caractérisé en ce que
    l'identification d'informations complémentaires correspond au label selon la spécification TMC ISO 14819-1 utilisé pour des messages multi-groupes, et pour le sous-label on utilise dans le label d'autres bits suivants de données du champ de données, selon la spécification TMC ISO 14819-1.
  9. Procédé selon la revendication 3,
    caractérisé en ce qu'
    un renvoi à un canal de transmission alternatif ou à au moins un groupe de données complémentaire est transmis en tant que partie d'une identification d'application (application ID) qui sert à identifier des informations TMC à l'intérieur du signal de données radio, et qui est transmise dans un autre groupe de données que les informations.
  10. Procédé selon la revendication 3,
    caractérisé en ce qu'
    un renvoi à une transmission alternative suivante d'informations élargies, comprenant les informations et les informations complémentaires, est transmis au lieu d'informations conventionnelles, en particulier des informations TMC, par une identification d'application (application ID) adaptée à cet effet qui sert à identifier des informations TMC à l'intérieur du signal de données radio et est transmise dans un autre groupe de données que les informations.
  11. Récepteur pour recevoir des informations codées, en particulier des messages relatifs à la circulation ou des informations importantes concernant la circulation, les informations étant transmises par groupes de données, une information comprenant au moins une description d'événement codée, en particulier une description d'événement ou de lieu codée, et dont des informations transmises servent de préférence à préciser la description d'événement ou de lieu codée, le récepteur présentant des moyens pour identifier les informations et les informations supplémentaires.
  12. Récepteur selon la revendication 11,
    caractérisé par
    - des moyens de réception des informations,
    - des moyens d'identification d'un renvoi à un canal de transmission alternatif,
    - des moyens d'identification et de réception des informations complémentaires transmises par le canal de transmission alternatif.
  13. Récepteur selon la revendication 11 ou 12, pour recevoir des informations TMC ou des informations TMC élargies, comprenant des moyens de détection d'identification annonçant la transmission d'informations élargies, en particulier d'une identification d'application adaptée à cet effet.
EP03400038A 2002-06-28 2003-06-24 Méthode de transmission d'informations et récepteur d'informations Expired - Lifetime EP1376512B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10229195 2002-06-28
DE2002129195 DE10229195A1 (de) 2002-06-28 2002-06-28 Verfahren zur Informationsübertragung und Informationsempfänger

Publications (3)

Publication Number Publication Date
EP1376512A2 EP1376512A2 (fr) 2004-01-02
EP1376512A3 EP1376512A3 (fr) 2005-09-28
EP1376512B1 true EP1376512B1 (fr) 2007-09-05

Family

ID=29716718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03400038A Expired - Lifetime EP1376512B1 (fr) 2002-06-28 2003-06-24 Méthode de transmission d'informations et récepteur d'informations

Country Status (3)

Country Link
EP (1) EP1376512B1 (fr)
DE (2) DE10229195A1 (fr)
ES (1) ES2289251T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8332131B2 (en) 2005-05-18 2012-12-11 Lg Electronics Inc. Method and apparatus for providing transportation status information and using it
US8711850B2 (en) 2005-07-08 2014-04-29 Lg Electronics Inc. Format for providing traffic information and a method and apparatus for using the format

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304546A1 (de) * 2003-02-04 2004-08-05 Robert Bosch Gmbh Verfahren zur Übertragung verkehrsrelevanter Informationen sowie Gerät zur Auswertung
KR101061460B1 (ko) 2005-05-18 2011-09-02 엘지전자 주식회사 소통상태에 대한 예측정보를 제공하고 이를 이용하는 방법및 장치
US7729335B2 (en) 2005-05-18 2010-06-01 Lg Electronics Inc. Providing traffic information relating to a prediction of congestion status and using the same
KR20060119739A (ko) 2005-05-18 2006-11-24 엘지전자 주식회사 구간 통과시간에 대한 예측정보를 제공하고 이를 이용하는방법 및 장치
KR20060119743A (ko) 2005-05-18 2006-11-24 엘지전자 주식회사 구간 속도에 대한 예측정보를 제공하고 이를 이용하는 방법및 장치
KR20060119741A (ko) 2005-05-18 2006-11-24 엘지전자 주식회사 소통상태의 추이정보를 제공하고 이를 이용하는 방법 및장치
KR20060119742A (ko) * 2005-05-18 2006-11-24 엘지전자 주식회사 도로 정보를 제공하고 이를 이용하는 방법 및 장치
KR101254219B1 (ko) 2006-01-19 2013-04-23 엘지전자 주식회사 링크 식별 방법 및 링크 식별 장치
DE102005062019A1 (de) * 2005-12-22 2007-06-28 Robert Bosch Gmbh Verfahren zur Codierung von Meldungen, Verfahren zur Decodierung von Meldungen und Empfänger zum Empfang und zur Auswertung von Meldungen
KR100750632B1 (ko) * 2005-12-30 2007-08-20 삼성전자주식회사 양방향 교통정보 제공 방법 및 그 장치
DE102007002941A1 (de) * 2007-01-19 2008-08-21 Siemens Ag Verfahren und Vorrichtung zum Übermitteln von Daten einer Nachricht und Verfahren und Vorrichtung zum Empfangen und Speichern von Daten der Nachricht

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905893A1 (de) * 1999-02-11 2000-08-17 Bosch Gmbh Robert Verfahren zur Übertragung von digital codierten Verkehrsnachrichten und Funkempfänger dazu
DE10038765A1 (de) * 2000-08-09 2002-02-21 Bosch Gmbh Robert Verfahren zur Übertragung von digital codierten Verkehrsnachrichten
DE10105468A1 (de) * 2001-02-07 2002-12-19 Becker Gmbh Verfahren zur Übertragung von codierten TMC-Meldungen in einem Nachrichtenübertragungssystem und Vorrichtung zum Empfang solcher Meldungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8332131B2 (en) 2005-05-18 2012-12-11 Lg Electronics Inc. Method and apparatus for providing transportation status information and using it
US8711850B2 (en) 2005-07-08 2014-04-29 Lg Electronics Inc. Format for providing traffic information and a method and apparatus for using the format

Also Published As

Publication number Publication date
EP1376512A3 (fr) 2005-09-28
EP1376512A2 (fr) 2004-01-02
DE50308097D1 (de) 2007-10-18
DE10229195A1 (de) 2004-01-15
ES2289251T3 (es) 2008-02-01

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