EP1966780B1 - Method for coding messages, method for decoding messages and receiver for receiving and evaluating messages - Google Patents
Method for coding messages, method for decoding messages and receiver for receiving and evaluating messages Download PDFInfo
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- EP1966780B1 EP1966780B1 EP06819661A EP06819661A EP1966780B1 EP 1966780 B1 EP1966780 B1 EP 1966780B1 EP 06819661 A EP06819661 A EP 06819661A EP 06819661 A EP06819661 A EP 06819661A EP 1966780 B1 EP1966780 B1 EP 1966780B1
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000000694 effects Effects 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims 6
- 230000001364 causal effect Effects 0.000 claims 1
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 26
- 230000001427 coherent effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
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- 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.
- a more precise localization of an event location is also the subject of DE 100 15 935 A1 .
- 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 ,
- traffic announcements comprise at least a description of events and a description of a location of the event, in which method such a traffic message receives a reference to a supplementary, to be transmitted separately supplementary message which supplementary message supplementary message content
- This supplementary message content is aimed at giving more precise information on the event encoded in the main traffic message.
- Such complex situation descriptions can be determined by means of TMC (Traffic Message Channel as specified in ISO 14819) by so-called "multi-sequence messages", i. several indexed consecutive single messages are described.
- 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 present invention with the features of the independent claims advantageously allows complex traffic situations whose individual events are spatially overlapping or interleaved, or Traffic situations directly adjacent to one another, or Traffic situations that are emitted by different providers or traffic situations that are spatially separate and have a different relationship to one another, for example due to the direct effects of a traffic incident on a following, be marked so that they can be recognized by the received terminal as belonging together and compact.
- the terminal can determine exactly which associated messages must be received before a complete description of the traffic situation can be released to further processing components, such as, for example, display, language and / or route calculation of a driver information system. 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 contains supplementary message contents.
- 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 highway section 10, between a first connection point A in the direction of travel (reference numeral 12) and a second connection point B (reference numeral 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). Furthermore, within the construction site there is a roadway narrowing from, for example, 3 to 2
- Lanes with a length of 10km (reference 23). As a result of the construction site and / or road constriction in the area of a congestion has formed over 10km in length (reference numeral 21).
- a message according to the invention initially comprises a main message 31 (message 1), which has a message identification (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.
- a source element (reference numeral 316) may be provided that identifies the provider of the message.
- 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 location descriptions of the supplementary messages can describe locations of the events contained in the supplementary messages and thus replace and / or supplement the location descriptions of the main message.
- 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 the description of the traffic situation according to FIG. 1 ,
- the congestion 21 is that event that is suitable for a driver Route calculation in a vehicle navigation system most seriously.
- 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), Here, for example, the removal of the beginning of the congestion from the junction A and / or the two connection points themselves.
- the supplementary message then includes the further information on the secondary event, ie the construction site 22.
- These are a description of the incident or the traffic incident, "construction site, 15km” (325), the place of the event, here 3km after junction A (323) , the indication of the information provider 324) and, in addition, the message ID 124 (321).
- the coding according to FIG. 3B differs essentially from that of FIG. 3A in that in this case the information on secondary event 1, that is to say of the lane narrowing 23, is provided by a different provider than the information relating to the main event, that is to say the congestion 21.
- 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.
- FIG. 4 A device for processing received messages encoded according to the invention is exemplified in FIG FIG. 4 illustrated by a block diagram of a radio receiver eg for DAB, DVB, DRM, FM FM radio or satellite radio.
- 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.
- 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 a unit which further processes the content of the composed 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. After the terminal-side summary, the representation can be made graphically or textually compact.
- the received messages coded according to the invention must first be decoded and combined to form a resulting message.
- the required procedure is based on a schedule in FIG. 5 shown.
- the process begins in step 100 with the tuning of the receiving part 1 to a radio transmitter which transmits encoded messages according to the invention, in particular traffic reports.
- a radio transmitter which transmits encoded messages 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 supplementary messages are not broadcast for a received message, the content of the received message 30 can be decoded immediately and sent to a further processing 120 (block 3), ie displayed on a display or included in a route calculation in a navigation system 3, for example.
- 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 "Between junction A and junction B 10km congestion" summarized.
- the minor events become an explanation of a supplemental message "because of 15km construction site (, 3km to junction A,) and 10km road narrowing (, 5km to junction A,)" or "because of 15km construction site (, 3km to junction A) and 10km road narrowing (, 2km after construction site start)" summarized, which can be retrieved, for example, on special request of the user by an appropriate user input.
- the additions in 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 in the present or similar cases based on the location information in the main and supplementary messages can be linked to the resulting location information.
- 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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Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Codierung von Meldungen, ein Verfahren zur Decodierung von Meldungen und einen Empfänger zum Empfang und zur Auswertung von Meldungen nach der Gattung der unabhängigen Patentanspüche.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.
Aus
Aus ISO 14819 sind weiter sogenannte Mehrsequenzmeldungen bekannt, bei denen eine Verkehrsinformation in mehreren Gruppen des RDS-Signals übertragen wird, wobei allerdings die mehreren, eine Verkehrsinformation umfassenden Gruppen unmittelbar aufeinander folgend übertragen werden müssen.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.
In
Eine exaktere Lokalisierung eines Ereignisorts ist auch Gegenstand der
Aus der
Die mittels einer Verkehrsmeldung zu übermittelnden verkehrlichen Situationen können einfach oder komplex sein, so ist beispielsweise "10km Stockender Verkehr" eine einfache Situationsbeschreibung und "10km Stockender Verkehr, Baustelle, Fahrbahnverengung, Durchschnittsgeschwindigkeit=20km/h" eine komplexe Situationsbeschreibung. Solche komplexen Situationsbeschreibungen können mittels TMC (Traffic Message Channel, wie in ISO 14819 spezifiziert) durch sogenannte "Mehrsequenzmeldungen", d.h. mehrere indizierte aufeinanderfolgende Einzelmeldungen beschrieben werden.The traffic situations to be conveyed by means of a traffic report may be simple or complex, for example "10km stagnant traffic" is a simple situation description and "10km stagnant traffic, construction site, lane narrowing, average speed = 20km / h" is a complex situation description. Such complex situation descriptions can be determined by means of TMC (Traffic Message Channel as specified in ISO 14819) by so-called "multi-sequence messages", i. several indexed consecutive single messages are described.
Nachteilig hierbei ist, dass sich alle einzelnen Ereignisse einer komplexen Situationsbeschreibung immer auf den gleichen Ort, d.h. auf den gleichen Straßenabschnitt, beziehen müssen, damit die Nachricht als komplexe Situationsbeschreibung im Endgerät angezeigt werden kann. Ferner müssen alle Ereignisse einer Situation zum gleichen Zeitpunkt verschickt werden. Es sind zwar Aktualisierungen möglich, jedoch müssen immer alle Meldungen mit allen enthaltenen Ereignissen aktualisert werden. Ein Anhängen von zusätzlichen Ereignissen an eine bereits versandte Meldung ist nicht möglich. Erweitertes komplexes Beispiel: "Zwischen AS Laatzen und AS Hildesheim 10km Stockender Verkehr, Baustelle, Fahrbahnverengung, Durchschnittsgeschwindigkeit=20km/h". Die Einzelereignisse "Stockender Verkehr", "Baustelle", "Fahrbahnverengung" und "Vd=20km/h" müssen sich auf den gleichen Ort, in diesem Fall auf den gleichen Straßenabschnitt zwischen den Anschlussstellen, beziehen. Überlappen sich die Ereignisse oder beziehen sich auf benachbarte, unterschiedliche Orte müssen mehrere getrennte Meldungen übertragen werden. Eine Zusammenführung der Meldungen, um eine kompakte Darstellung zu ermöglichen, ist endgeräteseitig sehr aufwändig.The disadvantage here is that all individual events of a complex situation description always have to refer to the same location, ie the same road section, so that the message as complex Situation description can be displayed in the terminal. Furthermore, all events of a situation must be sent at the same time. Although updates are possible, all messages must always be updated with all included events. Attaching additional events to an already sent message is not possible. Extended complex example: "Between AS Laatzen and AS Hildesheim 10km of traffic, construction site, road constriction, 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 the 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.
Weiterhin ist nachteilig, dass keine Relation zwischen Meldungen möglich ist, die aus unterschiedlichen Quellen stammen. Zukünftig ist zu erwarten, dass inhaltlich unterschiedliche Situationsbeschreibungen von verschiedenen Quellen bereitgestellt werden. Beispielsweise werden Verkehrsstörungen, wie Stau oder Unfall von der Polizei über die Landesmeldestellen erfasst, längerfristige Statusinformationen wie Baustellen oder Sperrungen werden von dritten Anbieter bereitgestellt - möglicherweise auch als Bezahldienst. Beispiel: Reale Situation: "10km Stau und 5km Baustelle" Angenommen, die Baustelle besteht länger und wird regelmäßig durch Anbieter X, etwa eine Rundfunkanstalt, ausgestrahlt. Der Stau tritt nun spontan auf und wird für relativ kurze Zeit von einer Landesmeldestelle gemeldet. Bei den derzeit über Rundfunk ausgestrahlten, digtial codierten TMC-Verkehrsmeldungen gibt es keine Möglichkeit beide Einzelmeldungen zu einer komplexen Meldung zu verbinden.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 party providers - possibly also as a payment service. Example: Real situation: "10km congestion and 5km construction site" Assuming that the construction site is longer and regularly broadcast by provider X, for example a broadcaster. The traffic jam occurs spontaneously and is reported for a relatively short time by a national registration office. There is no possibility of combining both single messages into a complex message in the case of TMC traffic reports currently broadcast via broadcasting.
Der Wunsch des Fahrers ist es, eine kompakte Darstellung der verkehrlichen Situation zu erhalten, wodurch er den Gesamtsachverhalt leichter erkennen und die Situation vor Ort besser einschätzen kann. So ist zum Beispiel ein Stau mit nachfolgender Baustelle so zusammenzufassen, dass der Fahrer zunächst nur auf das für ihn wichtigste Ereignis aufmerksam gemacht wird, statt auf zwei voneinander unabhängige Einzelereignisse.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.
Die vorliegende Erfindung mit den Merkmalen der unabhängigen Patentansprüche ermöglicht in vorteilhafter Weise,
komplexe Verkehrssituationen, deren einzelne Ereignisse sich örtlich überlappen oder verschachtelt sind oder
Verkehrssituationen, die unmittelbar aneinander angrenzen, oder
Verkehrssituationen, die von unterschiedlichen Providern ausgesendet werden oder Verkehrssituationen, die örtlich getrennt sind und einen anderen Zusammenhang zueinander aufweisen, z.B. durch direkte Auswirkungen einer Verkehrsstörung auf eine folgende, so zu kennzeichnen, dass sie vom empfangenen Endgerät als zusammengehörend erkannt und kompakt dargestellt werden können.The present invention with the features of the independent claims advantageously allows
complex traffic situations whose individual events are spatially overlapping or interleaved, or
Traffic situations directly adjacent to one another, or
Traffic situations that are emitted by different providers or traffic situations that are spatially separate and have a different relationship to one another, for example due to the direct effects of a traffic incident on a following, be marked so that they can be recognized by the received terminal as belonging together and compact.
Das Endgerät kann bei diesem Verfahren genau bestimmen, welche zugehörigen Meldungen empfangen werden müssen, bevor eine vollständige Beschreibung der Verkehrssituation an weiterverarbeitende Komponenten, wie besipielsweise Anzeige, Sprache und/oder Routenberechnung eines Fahrerinformationssystems, freigeben werden kann. Dadurch lassen sich unnötige Routenberechnungen oder wechselnde Karten- bzw. Textanzeigen der Meldungen vermeiden.In this method, the terminal can determine exactly which associated messages must be received before a complete description of the traffic situation can be released to further processing components, such as, for example, display, language and / or route calculation of a driver information system. This avoids unnecessary route calculations or changing map or text messages.
Weiter ermöglicht die Erfindung die Priorisierung von einzelnen Ereignissen bei der Verarbeitung, Anzeige oder Ansage durch das Endgerät. Die Erfindung ermöglicht weiter eine kompakte textuelle Anzeige und Kartenanzeige von verschachtelten Ereignissen durch das Endgerät. Informationen an den Benutzer, insbesondere einen Fahrzeugführer können so aufgebaut werden, dass zunächst das wichtigste, insbesondere dasjenige von mehreren Ereignissen, welches die gravierendste Auswirkung beispielsweise auf den Verkehrsfluss auf einem Straßenabschnitt hat oder beschreibt, angezeigt und Details nur auf weitere Anforderung angezeigt werden. Damit wird eine Reiz- oder Informationsüberflutung für den Benutzer vermieden.Further, 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.
Bei dem erfindungsgemäßen Verfahren zur Codierung von zu übertragenden Meldungen, insbesondere Verkehrsmeldungen, wobei die Meldungen Meldungsinhalte umfassen, ist dazu vorgesehen, dass eine Meldung mindestens einen Verweis auf eine ergänzende, separat zu übertragende Ergänzungsmeldung aufweist, welche Ergänzungsmeldung ergänzende Meldungsinhalte enthält. Separat meint dabei, dass Meldung und Ergänzungsmeldung/en nicht notwendig im Datenstrom unmittelbar aufeinanderfolgend gesendet werden müssen und einen (in Grenzen) beliebigen zeitlichen Abstand zueinander aufweisen können.In the method according to the invention for coding messages to be transmitted, in particular traffic reports, wherein the messages comprise message contents, it is provided that a message has at least one reference to a supplementary supplementary message to be transmitted separately, which supplementary message contains supplementary message contents. Separately means that message and supplementary message / s do not necessarily have to be sent directly consecutively in the data stream and that they can have an arbitrary temporal distance (within limits).
Ausführungsbeispiele der Erfindung sind in den Figuren dargestellt und werden nachfolgend näher erläutert.Embodiments of the invention are illustrated in the figures and are explained in more detail below.
-
Figur 1 eine schematische Darstellung miteinander verschachtelter Verkehrsereignisse,FIG. 1 a schematic representation of interleaved traffic events, -
Figur 2 den grundsätzlichen Aufbau von erfindungsgemäß codierten Meldungen, insbesondere Verkehrsmeldungen,FIG. 2 the basic structure of messages coded according to the invention, in particular traffic reports, -
Figuren 3A und 3B den Aufbau einer Verkehrsmeldung zur Beschreibung der Verkehrsereignisse gemäßFigur 1 ,FIGS. 3A and 3B the structure of a traffic message to describe the traffic events according toFIG. 1 . -
Figur 4 ein Blockschaltbild eines Endgeräts für die Verarbeitung von erfindungsgemäß verbundenen MeldungenFIG. 4 a block diagram of a terminal for the processing of inventively connected messages -
Figur 5 einen Ablaufplan zur Verarbeitung der erfindungsgemäß kodierten Meldungen in einem Endgerät gemäßFigur 4 .FIG. 5 a flowchart for processing the encoded according to the invention messages in a terminal according toFIG. 4 ,
Das erfindungsgemäße Verfahren zur Codierung von Meldungen wird am Beispiel von Verkehrsmeldungen, also Meldungen über Verkehrsstörungen oder sonstige verkehrsrelevanten Meldungen, die beispielsweise über Rundfunk, etwa UKW-Rundfunk oder digitalen Rundfunk von einem Rundfunksender an eine Vielzahl von Rundfunkempfängern übertragen werden, beschrieben.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.
Fahrspuren mit einer Länge von 10km (Bezugszeichen 23). Infolge der Baustelle und/oder Fahrbahnverengung hat sich in deren Bereich ein Stau über 10km Länge gebildet (Bezugszeichen 21).Lanes with a length of 10km (reference 23). As a result of the construction site and / or road constriction in the area of a congestion has formed over 10km in length (reference numeral 21).
Zur Beschreibung solcher miteinander verknüpfter Verkehrsereignisse werden diese erfindungsgemäß in einem Meldungsformat gemäß
Eine erfindungsgemäße Meldung, hier Verkehrsmeldung, umfasst zunächst eine Hauptmeldung 31 (Meldung 1), die eine Meldungs-Identifikation (ID) 311, hier 123 aufweist. Diese Hauptmeldung 31 umfasst als Meldungsinhalt das für den Fahrer und/oder seine Route bedeutendste Ereignis (Main-Event) 312, z.B. einen Stau. Daneben enthält die Meldung gegebenenfalls weitere, sogenannte implizite, Ereignisse (SubEvent_1, Bezugszeichen 313, SubEvent_2, Bezugszeichen 314, ... SubEvent_n, Bezugszeichen 315 ), z.B. Baustelle, Fahrbahnverengung usw., falls diese den gleichen örtlichen Bezug wie das Haupt-Ereignis 312 haben. Ist der örtliche Bezug der weiteren, impliziten Ereignisse 313, 314, 315 nicht gleich oder liegen detaillierte Informationen von einem anderen Anbieter als dem der Hauptmeldung vor, kann die Haupmeldung sogenannte "externe" SubEvents 314, 315 enthalten, wobei für jedes dieser externen SubEvents 314, 315 auf eine spezielle Meldung 32, 33 verwiesen wird, die weitere Informationen enthält. Der Verweis auf zugehörige weitere Meldungen, die externe SubEvents 314, 315 enthalten, erfolgt beispielsweise durch Angabe deren Meldungs-IDs (Link-ID=124, Bezugszeichen 317, Link-ID=125, Bezugszeichen 318).A message according to the invention, here traffic message, initially comprises a main message 31 (message 1), which has a message identification (ID) 311, here 123. This
Darüber hinaus kann ein Element "Source" (Bezugszeichen 316) vorgesehen sein, das den Anbieter der Meldung kennzeichnet. Weiterhin kann eine Typbezeichnung (Bezugszeichen 319), vorzugsweise zu jedem Event bzw. SubEvent vorgesehen sein, welche angibt, ob es sich dabei um ein in der Hauptmeldung 31 übertragenes Ereignis handelt (Typ=intern) oder ob es sich über ein externes Event, also ein in einer weiteren Ergänzungsmeldung 32 oder 33 übertragenes Ereignis (Typ=extern) handelt.In addition, a source element (reference numeral 316) may be provided that identifies the provider of the message. Furthermore, a type designation (reference numeral 319) may be provided, preferably for each event or sub-event, which indicates whether this is an event transmitted in the main message 31 (type = internal) or whether it is an external event, ie is an event transmitted in another
Schließlich weist die Meldung, insbesondere im Falle einer Verkehrsmeldung, vorzugsweise noch eine Ortsbeschreibung 320 auf, welche angibt, auf welchen Ort sich die übertragene Verkehrsmeldung bezieht.Finally, the message, in particular in the case of a traffic report, preferably also has a
Die weiteren, also Ergänzungsmeldungen 32 und 33, auf die mittels der Link-IDs 317 und 318 verwiesen wird, umfassen ebenfalls eine Meldungs-Kennung (ID=124, Bezugszeichen 321; ID=12n, Bezugszeichen 331).The further, ie
Die weiteren Meldungen 32 bis 33 können optional Angaben zur Ursache haben (Refer-Typ=cause, Bezugszeichen 322 und 332) und dabei den komplexen Sachverhalt der Verkehrssituation komplettieren. Weiter können die weiteren Meldungen auch zusätzliche Ortsbeschreibungen 323 und 333 sowie jeweils eine Angabe des Meldungslieferanten (Source) 324 und 334 umfassen. Die Ortsbeschreibungen der Ergänzungsmeldungen können Orte der in den Ergänzungsmeldungen enthaltenen Ereignisse beschreiben und somit die Ortsbeschreibungen der Hauptmeldung ersetzen und/oder ergänzen.The
Diese beschriebene Meldungsstruktur hat den besonderen Vorteil, dass die Hauptmeldung 31 die ganze Komplexität des zu beschreibenden Sachverhaltes bereits grob enthält. Das empfangende Endgerät weiß somit, wie viele Meldung noch empfangen werden müssen, um den Sachverhalt vollständig darzustellen.This described message structure has the particular advantage that the
Die
Es wird dabei davon ausgegangen, dass von den angegebenen verkehrsrelevanten Ereignissen, nämlich 15km Baustelle (Bezugszeichen 22), 10km Fahrbahnverengung (Bezugszeichen 23) und 10 Kilometer Stau (Bezugszeichen 21) der Stau 21 dasjenige Ereignis ist, das sich für einen Fahrzeugführer bzw. eine Routenberechnung in einem Fahrzeug-Navigationssystem am gravierendsten auswirkt.It is assumed that of the specified traffic-related events, namely 15km construction site (reference 22), 10km road constriction (reference numeral 23) and 10 kilometers of congestion (reference numeral 21) the
Da der Stau 21 und die Fahrbahnverengung 23 den gleichen örtlichen Bezug aufweisen, nämlich der Stauanfang und der Beginn der Fahrbahnverengung innerhalb der Baustelle 22 am gleichen Ort 11 zusammenfallen, werden diese beiden Ereignisse als Hauptereignis (Main Event) 312 und Nebenereignis 1 (SubEvent_1) 313 in der Hauptmeldung 31 mit der Meldungsnummer (ID = 123) 311 übertragen (
Die Hauptmeldung umfasst dabei eine Kennzeichnung bzw. Beschreibung des Hauptereignisses, nämlich hier Stau der Länge 10km (Bezugszeichen 312), den Hinweis auf den Informationsanbieter, hier den Anbieter (Provider) X (Bezugszeichen 314) und den Ort des Ereignisses (Bezugszeichen 320), hier also beispielsweise die Entfernung des Stauanfangs von der Anschlussstelle A und/oder die beiden Anschlussstellen selbst. Weiter umfasst die Hauptmeldung 31 Informationen zu dem internen Nebenereignis, nämlich der Fahrbahnverengung 23, nämlich deren Beschreibung 313 und die Information darüber, dass es sich um ein "internes" Nebenereignis handelt (Eintrag "Typ=intern").The main message comprises an identification or description of the main event, namely congestion of
Demgegenüber werden Informationen zu dem weiteren Nebenereignis, nämlich der Baustelle 22, als weiteres Nebenereignis (SubEvent_2) in der weiteren Meldung 32 übertragen, da diese einen anderen Ortsbezug, nämlich nicht den Beginn der Fahrbahnverengung, sondern einen in Fahrtrichtung davor liegenden Punkt auf dem Streckenabschnitt 10 aufweist. In der Hauptmeldung 31 wird dazu unter der Angabe über die Exisitenz dieses weiteren Nebenereignisses SubEvent_2 (Bezugszeichen 314) durch Angabe der Meldungsnummer (Link-ID = 124, Bezugszeichen 317) auf die weitere Meldung 32 verwiesen, in der Informationen zu dem weiteren Nebenereignis, nämlich der Baustelle 22, übertragen werden. Ferner ist dem Eintrag 314 ein Hinweis zugeordnet, dass es sich bei dem weiteren Nebenereignis um ein so genanntes "externes" Nebenereignis handelt, zu dem also Informationen in einer Ergänzungsmeldung übertragen werden.In contrast, information about the additional incident, namely the
Die Ergänzungsmeldung umfasst dann die weiteren Informationen zu dem Nebenereignis, also der Baustelle 22. Dies sind eine Beschreibung des Nebenereignisses bzw. der Verkehrsstörung, "Baustelle, 15km" (325), der Ort des Ereignisses, hier also 3km nach Anschlussstelle A (323), die Angabe des Informationsanbieters 324) und daneben die Meldungs-ID 124 (321).The supplementary message then includes the further information on the secondary event, ie the
Die Codierung gemäß
Demzufolge werden hier gegenüber
Die weitere Ergänzungsmeldung 33 umfasst dann wie die erste Ergänzungsmeldung 32 die weiteren Informationen zu dem weiteren Nebenereignis, also der Fahrbahnverengung 23. Dies sind eine Beschreibung des Nebenereignisses bzw. der Verkehrsstörung, "Fahrbahnverengung 10km" (335), der Ort des Ereignisses, hier also der Beginn der Fahrbahnverengung (333), die Angabe des Informationsanbieters, hier "Y" (334) und daneben die Meldungs-ID 125 (331).The further
Eine Einrichtung zur Verarbeitung von erfindungsgemäß codierten, empfangenen Meldungen ist beispielhaft in
1 stellt den eigentlichen Funkempfänger bzw. das Empfangsteil dar. 2 bezeichnet eine mit dem Empfangsteil 1 verbundene Vorverarbeitungseinheit für zusammenhängende Verkehrsmeldungen. In dieser ist das entsprechende Verfahren für die Zusammensetzung der einzelnen Teilmeldungen 31, 32 und gegebenenfalls weiterer zu einer resultierenden Gesamt-Nachricht und die Weitergabe an Block 3 implemententiert. 3 enthält eine Einheit, die die zusammengesetzen Meldungen bzw. resultierenden Meldungen inhaltlich weiter verarbeitet, z.B. eine Anzeige oder ein Navigationssystem mit Routenberechnungskomponente.1 shows the actual radio receiver or the receiving part. FIG. 2 designates a preprocessing unit connected to the receiving
Die erfindungsgemäße Idee betrifft die Kennzeichnung und die Vorverarbeitung von zusammenhängenden Meldungen von komplexen Verkehrssituationen und deren kompakte Darstellung im Endgerät. Nach der endgeräteseitigen Zusammenfassung kann die Darstellung grafisch oder auch textuell kompakt erfolgen.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. After the terminal-side summary, the representation can be made graphically or textually compact.
Im Endgerät könnte die Anzeige der aus den ausgewerteten, empfangenen, erfindungsgemäß codierten Meldungen generierten Nachricht dann wie folgt aussehen.
- 1.) In einer ersten Ansicht würde beispielsweise eine Nachricht angezeigt mit dem Inhalt "Zwischen Anschlussstelle A und Anschlussstelle B 10km Stau"
- 2.) In einer zweiten, detaillierteren und durch den Benutzer durch eine entsprechende Bedieneingabe aufrufbaren Ansicht könnte die ergänzende Nachricht
"wiegen 15km Baustelle und 10km Fahrbahnverengung"
angezeigt werden, die die Ursache für das Verkehrsereignis darstellt.
- 1.) In a first view, for example, a message would be displayed with the content "Between junction A and junction B 10km congestion"
- 2.) In a second, more detailed and callable by the user through an appropriate operator input view, the supplementary message
" weigh 15km construction site and 10km road constriction "
which is the cause of the traffic event.
Zur Darstellung im Endgerät müssen zunächst die empfangenen, erfindungsgemäß codierten Meldungen dekodiert und zu einer resultierenden Nachricht zusammengefasst werden. Der dazu erforderliche Ablauf ist anhand eines Ablaufplans in
Der Ablauf beginnt in Schritt 100 mit der Abstimmung des Empfangsteils 1 auf einen Rundfunksender, der erfindungsgemäß codierte Meldungen, insbesondere Verkehrsmeldungen, überträgt. Im vorliegenden Beispiel ist dies beispielsweise ein UKW-Rundkfunksender, der über das Radio Daten Signal (RDS) gemäß DIN EN 50 067 neben dem Hörfunkprogramm digital codierte Informationen überträgt.The process begins in
In Schritt 110 wird geprüft, ob die empfangenen Meldungen 31 Verweise 317, 318 auf Ergänzungsmeldungen 32, 33 enthalten. Ist dies nicht der Fall, d.h. werden zu einer emfpangenen Meldungen keine Ergänzungsmeldungen ausgestrahlt, kann der Inhalt der empfangenen Meldung 30 sofort dekodiert und einer weiteren Verarbeitung 120 (Block 3) zugeführt werden, also beispielsweise auf einem Display angezeigt oder in eine Routenberechnung bei einem Navigationssystem 3 einbezogen werden.In
Enthält die empfangene Meldung 31 einen oder mehrere Verweise 317, 318 auf Ergänzungsmeldungen 32, 33, werden diese in Schritt 130 eingelesen. In Schritt 140 wird geprüft, ob alle verwiesenen Ergänzungsmeldungen eingelesen worden sind. Diese Prüfung kann beispielsweise durch Abgleich der verwiesenen Meldungs-IDs 321, 331 der Ergänzungsmeldungen mit den Verweisen 317, 318 der Hauptmeldung erfolgen. Sind nicht alle verwiesenen Ergänzungsmeldungen eingelesen worden, fährt der Ablauf mit dem weiteren Einlesen der Ergänzungsmeldungen in Schritt 130 fort.If the received
Sind alle verwiesenen Ergänzungsmeldungen 32, 33 zu der Hauptmeldung 31 eingelesen worden, wird in Schritt 150 aus den Meldungsinhalten der Haupt- und den Ergänzungsmeldungen eine resultierende Nachricht in kompakter Darstellung erzeugt. Im Falle des Beispiels der
"Zwischen Anschlussstelle A und Anschlussstelle B 10km Stau"
zusammen gefasst. Die Nebenereignisse werden als Erläuterung zu einer Ergänzungsnachricht
"wegen 15km Baustelle (, 3km nach Anschlussstelle A,) und 10km Fahrbahnverengung (, 5km nach Anschlusstelle A,)"
oder
"wegen 15km Baustelle (,3km nach Anschlussstelle A) und 10km Fahrbahnverengung (,2km nach Baustellenbeginn )"
zusammengefasst, die beispielsweise auf besonderen Wunsch des Benutzers durch eine entsprechende Bedieneingabe abgerufen werden kann. Die Ergänzungen in Klammern können für eine Ausgabe in einer dritten Konkretisierungsebene vorgehalten werden oder schon mit der ersten Detaillierung ausgegeben werden.If all referenced
"Between junction A and junction B 10km congestion"
summarized. The minor events become an explanation of a supplemental message
"because of 15km construction site (, 3km to junction A,) and 10km road narrowing (, 5km to junction A,)"
or
"because of 15km construction site (, 3km to junction A) and 10km road narrowing (, 2km after construction site start)"
summarized, which can be retrieved, for example, on special request of the user by an appropriate user input. The additions in brackets can be maintained for output in a third concretization level or output with the first detailing.
Ein Vorteil der Erfindung besteht auch darin, dass beispielsweise die Ortsangaben für bestimmte Haupt- oder Nebenereignisse im vorliegenden oder vergleichbaren Fällen auf Grundlage der Ortsangaben in der Haupt- und den Ergänzungsmeldungen zu resultierenden Ortsangaben verknüpft werden können.An advantage of the invention is also that, for example, the location information for certain major or minor events in the present or similar cases based on the location information in the main and supplementary messages can be linked to the resulting location information.
Beispiel:
- Es wird angenommen, dass in
der Hauptmeldung 31 als Ortsangabe für den Stau die Ortsinformation - 5km nach Anschlussstelle A
- übertragen wird. Es wird ferner angenommen, dass für die Baustelle in der ersten Ergänzungsmeldung 32 die Ortsangabe
- 3km nach Anschlussstelle A '
- übertragen wird. Schließlich wird angenommen, dass für die Fahrbahnverengung in der zweiten Ergänzungsmeldung 33 die Ortsangabe
- 5km nach Anschlussstelle A
- übertragen wird.
- Aus diesen Meldungsinhalten kann der Empfänger eine resultierende Nachricht etwa in der Form
- "Zwischen Anschlussstelle A und Anschlussstelle B 10km Stau"
- mit der Ergänzung
- "wegen 15km Baustelle, Baustellenbeginn 3km nach Anschlussstelle A"
- und
- "Staubeginn 2km nach Baustellenbeginn"
- zusammen gefasst werden. Das heißt, aus den Einzelinformationen der einzelnen Meldungen können resultierende Informationen, wie hier 2km nach Baustellenbeginn, errechnete oder anderweit synthetisiert werden, die dem Benutzer eine Orientierung erleichtern. Diese textuellen Informationen sind gleichermaßen auf einem Display anzeigbar oder durch eine Sprachausgabe, insbesondere unter Verwendung einer Sprachsyntheseeinrichtung, akustisch ausgebbar.
- It is assumed that in the
main message 31 as a location for the congestion, the location information - 5km to junction A
- is transmitted. It is further assumed that for the construction site in the first
supplementary message 32, the location - 3km to junction A '
- is transmitted. Finally, it is assumed that for the road constriction in the second
supplementary message 33, the location - 5km to junction A
- is transmitted.
- From this message content, the recipient may receive a resulting message in about the form
- "Between junction A and junction B 10km congestion"
- with the supplement
- "because of 15km construction site, construction site start 3km after junction A"
- and
- "Start of dust 2km after start of construction"
- be summarized. This means that 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 equally be displayed on a display or acoustically output by a voice output, in particular using a speech synthesis device.
Gemäß einer Weiterbildung der Erfindung kann das weitere Einlesen von verwiesenen Ergänzungsmeldungen abgebrochen werden, wenn eine vorgegebene Zeitschranke zum Einlesen der Ergänzungsmeldungen überschritten ist. Hiermit wird sicher gestellt, dass Nachrichten nach Empfang der entsprechenden Meldungen in jedem Falle zeitnah ausgegeben werden.According to one embodiment of the invention, 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.
Claims (6)
- Method for encoding announcements which are to be transmitted, particularly traffic announcements, wherein the announcements comprise announcement contents, which announcement contents comprise at least one description of an event and at least one description for a location of the event,
wherein an announcement has at least one reference to a complemental complementary announcement which is to be transmitted separately, which complementary announcement contains complemental announcement contents,
characterized
in that the complemental announcement contents comprise at least one description of a further event which has a causal or local link to the event. - Method for decoding announcements encoded in accordance with the method according to Claim 1, characterized
in that a transmitted announcement and the at least one complementary announcement, to which reference is made in the announcement, are evaluated and
in that a resulting message is produced from the announcement contents of the announcement and the complemental announcement contents of the at least one complementary announcement. - Method according to Claim 2, characterized in that the resulting message preferably refers to that event among the events which has the most significant effect, particularly on the traffic flow in a traffic route network.
- Method according to Claim 3, characterized in that the resulting message subordinately refers to at least one further event among the at least two events which has a less significant effect.
- Method according to one of Claims 2 to 4, characterized in that the effect of the event is derived from the nature of the event or from the nature of the event in conjunction with a physical extent of the effect thereof.
- Receiver for receiving announcements which have been encoded in accordance with a method according to Claim 1, comprising a device for processing the received announcements, characterized by means for evaluating the received announcements such that first of all the announcement and those complementary announcements to which reference is made in the announcement are evaluated and a resulting message is produced from the announcement contents of the announcement and the complemental announcement contents of the at least one complementary announcement.
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DE102005062019A DE102005062019A1 (en) | 2005-12-22 | 2005-12-22 | Messages e.g. traffic messages, coding method for describing e.g. traffic congestion in road network, involves including supplementary messages in contents of messages, where supplementary messages contain supplementing message contents |
PCT/EP2006/068746 WO2007073996A1 (en) | 2005-12-22 | 2006-11-22 | Method for coding messages, method for decoding messages and receiver for receiving and evaluating messages |
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EP1966780A1 EP1966780A1 (en) | 2008-09-10 |
EP1966780B1 true EP1966780B1 (en) | 2010-08-11 |
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EP06819661A Active EP1966780B1 (en) | 2005-12-22 | 2006-11-22 | Method for coding messages, method for decoding messages and receiver for receiving and evaluating messages |
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EP (1) | EP1966780B1 (en) |
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AT (1) | ATE477566T1 (en) |
DE (2) | DE102005062019A1 (en) |
WO (1) | WO2007073996A1 (en) |
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