EP1966780A1 - Procede de codage de messages, procede de decodage de messages et recepteur pour recevoir et interpreter des messages - Google Patents

Procede de codage de messages, procede de decodage de messages et recepteur pour recevoir et interpreter des messages

Info

Publication number
EP1966780A1
EP1966780A1 EP06819661A EP06819661A EP1966780A1 EP 1966780 A1 EP1966780 A1 EP 1966780A1 EP 06819661 A EP06819661 A EP 06819661A EP 06819661 A EP06819661 A EP 06819661A EP 1966780 A1 EP1966780 A1 EP 1966780A1
Authority
EP
European Patent Office
Prior art keywords
message
messages
supplementary
event
traffic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06819661A
Other languages
German (de)
English (en)
Other versions
EP1966780B1 (fr
Inventor
Matthias Hessling
Michael Laedke
Jens Zombetzki
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 EP1966780A1 publication Critical patent/EP1966780A1/fr
Application granted granted Critical
Publication of EP1966780B1 publication Critical patent/EP1966780B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0968—Systems involving transmission of navigation instructions to the vehicle

Definitions

  • the present invention relates to a method for coding messages, a method for decoding messages and a receiver for receiving and evaluating messages according to the category of independent patent claims.
  • TMC Traffic Message Channel
  • ISO 14819 further discloses so-called multi-sequence messages in which traffic information is transmitted in a plurality of groups of the RDS signal, wherein, however, the plurality of groups comprising traffic information must be transmitted directly one after the other.
  • DE 199 05 893 A1 proposes an extension of conventional traffic announcements according to the TMC standard. For this purpose, it is provided there to add to the standardized messages, which regularly contain a location code and thus an indication of a location of a traffic-relevant event, a supplementary location description which precedes the actual message header is announced.
  • a location description is no longer limited to coded in the TMC location database Autobahnan gleich kind, Autobahnnche- and triangles un the like or the intermediate track sections, but allows a further description of an event location.
  • a more precise localization of an event location is also the subject of DE 100 15 935 A1.
  • a section affected by a traffic disturbance which can be defined by an adjacent location coded in the TMC location database, to transmit a distance share or comparable linear parameter which enables a more precise localization of an event location on the encoded route section ,
  • the traffic situations to be communicated by means of a traffic report may be simple or complex, for example "10km of arrivals" is a simple description of the situation and "10km of traffic, construction site,
  • Lane Narrows, Average Speed 20km / h
  • TMC Traffic Message Channel as specified in ISO 14819
  • multi-sequence messages i.e. several indexed consecutive single messages.
  • Lane narrowing, average speed 20km / h.
  • "The single events” stalling traffic "," construction site “,” road constriction “and” Vd 20km / h "must refer to the same location, in this case the same section of road between junctions If the events overlap or relate to each other neighboring, different places must be transmitted several separate messages. A combination of the messages in order to enable a compact representation is very complex on the terminal side.
  • Another disadvantage is that no relation between messages is possible that come from different sources. In the future it can be expected that different descriptions of the situation will be provided by different sources. For example, traffic congestion, such as traffic jams or accidents are detected by the police through the regional registration offices, longer-term status information such as construction sites or blockages are provided by third parties - possibly as well
  • the desire of the driver is to obtain a compact representation of the traffic situation, which makes it easier for him to identify the overall situation and better assess the situation on the ground. For example, a traffic jam with a subsequent construction site must be summarized in such a way that the driver is initially only made aware of the most important event for him, rather than on two separate individual events.
  • the terminal can use this method to determine exactly which associated messages must be received before a complete description of the
  • Traffic situation to further processing components can be released. This avoids unnecessary route calculations or changing map or text messages.
  • the invention enables the prioritization of individual events in the processing, display or announcement by the terminal.
  • the invention further enables compact textual display and map display of interleaved events by the terminal.
  • Information to the user, in particular a driver can be constructed so that first the most important, in particular that of several events, which has the most serious impact, for example on the traffic flow on a road section or displayed and displayed details only on further request. This avoids irritation or information overload for the user.
  • a message has at least one reference to a supplementary supplementary message to be transmitted separately, which supplementary message contains supplementary message contents.
  • Supplementary message / s do not necessarily have to be sent directly consecutively in the data stream and one (within limits) can have any time interval to each other.
  • FIG. 1 is a schematic representation of interleaved traffic events
  • FIG. 2 shows the basic structure of messages coded according to the invention, in particular traffic reports,
  • FIGS. 3A and 3B show the structure of a traffic report for describing the traffic events according to FIG. 1,
  • Figure 4 is a block diagram of a terminal for the processing of inventively connected messages
  • FIG. 5 shows a flowchart for processing the messages coded according to the invention in a terminal according to FIG. 4.
  • the method according to the invention for the coding of messages is described using the example of traffic reports, that is to say messages about traffic incidents or other traffic-relevant messages which are transmitted for example via broadcasting, such as VHF broadcasting or digital broadcasting from a broadcasting station to a plurality of radio receivers.
  • traffic reports that is to say messages about traffic incidents or other traffic-relevant messages which are transmitted for example via broadcasting, such as VHF broadcasting or digital broadcasting from a broadcasting station to a plurality of radio receivers.
  • FIG. 1 shows a route section 10, in the present case, for example, a motorway section 10, between a first connection point A (reference number 12) in the direction of travel and a second connection point B (reference number 14).
  • This has a total length of 21km.
  • This section of the route now contains several traffic-related events that are related to each other.
  • On the section 10 is located 3 km from the first junction A (12) away a construction site with a length of 15km (reference 22).
  • a construction site with a length of 15km (reference 22).
  • a congestion over 10km in length has formed in their area (reference numeral 21).
  • a message according to the invention initially comprises a main message 31 (message 1) which has a message identifier (ID) 311, here 123.
  • This main message 31 comprises as message content the most important event (main event) 312 for the driver and / or his route, e.g. a traffic jam.
  • the message optionally contains further, so-called implicit, events (SubEvent 1, reference numeral 313, SubEvent_2, reference numeral 314, ... SubEvent n, reference numeral 315), e.g. Construction site, road constriction, etc., if they have the same local reference as the main event 312.
  • the main message may contain so-called "external" sub-events 314, 315, with 314 for each of these external sub-events , 315 is referred to a special message 32, 33 containing further information
  • the external sub-events 314, 315 may contain so-called "external" sub-events 314, 315, with 314 for each of these external sub-events , 315 is referred to a special message 32, 33 containing further information
  • a source element (reference numeral 316) may be provided that identifies the provider of the message.
  • a type designation (reference numeral 316)
  • the message in particular in the case of a traffic report, preferably also has a location description 320 which indicates to which location the transmitted traffic report relates.
  • the further messages 32 to 33 can optionally contain information on the cause (refer-
  • the further messages can also include additional location descriptions 323 and 333 and in each case an indication of the message provider (source) 324 and 334.
  • the location descriptions of the supplementary messages may include places of the supplementary messages
  • This described message structure has the particular advantage that the main message 31 already roughly contains the entire complexity of the situation to be described.
  • the receiving terminal thus knows how many messages still have to be received in order to fully represent the facts.
  • FIGS. 3A and 3B show the concrete structure of the traffic information according to the invention for describing the traffic situation according to FIG. 1.
  • the congestion 21 is that event that is suitable for a driver Route calculation in one
  • the main message comprises an identification or description of the main event, namely congestion of length 10 km (reference numeral 312), the reference to the information provider, here the provider X (reference numeral 314) and the location of the event (reference numeral 320),
  • the main event namely congestion of length 10 km (reference numeral 312), the reference to the information provider, here the provider X (reference numeral 314) and the location of the event (reference numeral 320)
  • the supplementary message then includes the further information on the secondary event, ie the construction site 22. These are a description of the secondary event or the
  • the coding according to FIG. 3B essentially differs from that of FIG. 3A in that here the information on secondary event 1, that is to say of the lane narrowing 23, is provided by a different provider than the information about the main event, that is to say the congestion 21. Accordingly, the information about the lane constriction is not transmitted here in contrast to FIG. 3A within the main message 31, but instead in the further supplementary message 33, which is referred to in the main message (314, 318).
  • the further supplementary message 33 then includes, like the first supplementary message 32, the further information on the further secondary event, ie the roadway narrowing 23.
  • the further information on the further secondary event ie the roadway narrowing 23.
  • a device for processing received messages coded according to the invention is shown by way of example in FIG. 4 on the basis of a block diagram of a radio receiver, e.g. for DAB, DVB, DRM, FM FM radio or
  • Satellite radio shown The invention is not limited to radio receivers, but also with other radio receivers, such as receivers for beacon communication, as in the case of toll, the Japanese VICS (Vehicle Information & Communication System) and the like can be implemented.
  • other radio receivers such as receivers for beacon communication, as in the case of toll, the Japanese VICS (Vehicle Information & Communication System) and the like can be implemented.
  • FIG. 1 shows the actual radio receiver or the receiving part.
  • FIG. 2 designates a preprocessing unit connected to the receiving part 1 for coherent traffic reports.
  • the corresponding method for the composition of the individual partial messages 31, 32 and possibly further to a resulting overall message and the passing to block 3 implemented.
  • 3 contains one
  • Unit that further processes the composition of messages or resulting messages, e.g. a display or navigation system with route calculation component.
  • the idea according to the invention relates to the identification and preprocessing of coherent messages of complex traffic situations and their compact representation in the terminal.
  • the representation can be made graphically or textually compact.
  • the display of the message generated from the evaluated, received, inventively coded messages could then look like this.
  • the received messages coded according to the invention must first be decoded and combined to form a resulting message.
  • the procedure required for this is illustrated by means of a flowchart in FIG.
  • step 100 The process starts in step 100 with the tuning of the receiving part 1 to a
  • Broadcasting station that transmits messages coded according to the invention, in particular traffic reports.
  • this is, for example, an FM broadcasting station, which transmits digitally coded information in addition to the radio program via the Radio Data Signal (RDS) according to DIN EN 50 067.
  • RDS Radio Data Signal
  • step 110 it is checked whether the received messages 31 contain references 317, 318 to supplementary messages 32, 33. If this is not the case, i. If no supplementary messages are broadcast for a received message, the content of the received message 30 can be immediately decoded and fed to a further processing unit 120 (block 3), that is to say, for example, displayed on a display or in one
  • Route calculation in a navigation system 3 are included.
  • step 130 If the received message 31 contains one or more references 317, 318 to supplementary messages 32, 33, these are read in in step 130.
  • step 140 it is checked whether all referenced supplementary messages have been read. These Checking can be done, for example, by matching the referenced message IDs 321, 331 of the supplementary messages with the references 317, 318 of the main message. If not all referenced supplementary messages have been read in, the sequence continues with the further reading of the supplementary messages in step 130.
  • a resulting message is generated in a compact representation from the message contents of the main and supplementary messages in step 150.
  • the main event with the associated location description becomes the main message
  • brackets can be maintained for output in a third concretization level or output with the first detailing.
  • An advantage of the invention is also that, for example, the location information for certain major or minor events can be linked in the present or similar cases based on the location information in the main and supplementary messages to the resulting location information.
  • the recipient may receive a resulting message in about the form
  • resulting information such as here 2km after construction site start, can be calculated or otherwise synthesized from the individual information of the individual messages, giving the user an orientation facilitate.
  • This textual information can likewise be displayed on a display or acoustically output by a voice output, in particular using a speech synthesis device.
  • the further reading of referenced supplementary messages can be aborted when a predetermined time limit is exceeded for reading the supplementary messages. This ensures that messages are always output promptly after receiving the relevant messages.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Traffic Control Systems (AREA)
  • Navigation (AREA)
  • Communication Control (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

Procédé de codage de messages à transmettre, procédé de décodage de messages et récepteur pour recevoir et pour interpréter des messages, notamment des messages de trafic, les messages comprenant des contenus de message et un message présentant au moins un renvoi à un message complémentaire à transmettre séparément, lequel message complémentaire contient des contenus de message complémentaires.
EP06819661A 2005-12-22 2006-11-22 Procede de codage de messages, procede de decodage de messages et recepteur pour recevoir et interpreter des messages Active EP1966780B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005062019A DE102005062019A1 (de) 2005-12-22 2005-12-22 Verfahren zur Codierung von Meldungen, Verfahren zur Decodierung von Meldungen und Empfänger zum Empfang und zur Auswertung von Meldungen
PCT/EP2006/068746 WO2007073996A1 (fr) 2005-12-22 2006-11-22 Procede de codage de messages, procede de decodage de messages et recepteur pour recevoir et interpreter des messages

Publications (2)

Publication Number Publication Date
EP1966780A1 true EP1966780A1 (fr) 2008-09-10
EP1966780B1 EP1966780B1 (fr) 2010-08-11

Family

ID=37682692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06819661A Active EP1966780B1 (fr) 2005-12-22 2006-11-22 Procede de codage de messages, procede de decodage de messages et recepteur pour recevoir et interpreter des messages

Country Status (6)

Country Link
US (1) US8140249B2 (fr)
EP (1) EP1966780B1 (fr)
KR (1) KR101054633B1 (fr)
AT (1) ATE477566T1 (fr)
DE (2) DE102005062019A1 (fr)
WO (1) WO2007073996A1 (fr)

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Also Published As

Publication number Publication date
DE502006007665D1 (de) 2010-09-23
KR101054633B1 (ko) 2011-08-04
ATE477566T1 (de) 2010-08-15
US20090265087A1 (en) 2009-10-22
KR20080085849A (ko) 2008-09-24
DE102005062019A1 (de) 2007-06-28
US8140249B2 (en) 2012-03-20
WO2007073996A1 (fr) 2007-07-05
EP1966780B1 (fr) 2010-08-11

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