EP1079353B1 - Method for requesting and processing traffic messages - Google Patents
Method for requesting and processing traffic messages Download PDFInfo
- Publication number
- EP1079353B1 EP1079353B1 EP00115719A EP00115719A EP1079353B1 EP 1079353 B1 EP1079353 B1 EP 1079353B1 EP 00115719 A EP00115719 A EP 00115719A EP 00115719 A EP00115719 A EP 00115719A EP 1079353 B1 EP1079353 B1 EP 1079353B1
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- European Patent Office
- Prior art keywords
- traffic
- data
- radio
- transmitted
- information
- 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
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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
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
-
- 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
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
- G08G1/096741—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where the source of the transmitted information selects which information to transmit to each vehicle
-
- 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
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
- G08G1/096775—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a central station
-
- 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
- G08G1/096805—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route
- G08G1/096827—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route where the route is computed onboard
-
- 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
- G08G1/096855—Systems involving transmission of navigation instructions to the vehicle where the output is provided in a suitable form to the driver
- G08G1/096872—Systems involving transmission of navigation instructions to the vehicle where the output is provided in a suitable form to the driver where instructions are given per voice
Definitions
- the invention is based on a method for requesting and processing traffic reports according to the type of the main claim.
- WO 98/26396 a method and an arrangement for informing mobile subscribers have already become known.
- data are transmitted between a central unit or a mobile subscriber unit on request and / or automatically. These data are intended in particular to transmit traffic information to the mobile subscriber.
- the central station gives the mobile subscriber all the information about traffic management, so that the road user is completely dependent on the information from the central office.
- the other possibility is to be seen in the fact that the road user carries a navigation device on board his vehicle, by means of which it is possible to obtain traffic management from the given current position to a target position.
- control center is only used to transmit traffic information of this type from the control center that could lead to a hindrance to the journey, in particular traffic jams, road closures, diversions or weather-related disruptions.
- This information can either be transmitted in plain text or in a reduced form, only codes being transmitted, and these codes then being combined in the receiver to form complete messages.
- a radio To send and receive the information, a radio must be available for each participant, which enables both the transmission of messages and the reception of messages.
- Such a radio device can be, for example, a customary mobile radio device, as described in DE 196 51 143 A1, but it can also be transmitters that send information to a central station on a specific frequency and, for example, radio receivers operating in the Are able to receive customized messages.
- the control center can then broadcast the information via a radio transmitter and, on the basis of the individual identifier, ensure that the message can only be evaluated by the recipient who is appropriately individualized.
- the measure according to the invention has the advantage that the information transmitted to the control center ensures that the coded traffic messages must also be evaluated in the vehicle, since the version number transmitted ensures that the information transmitted back from the control center is also in the vehicle Vehicle can be evaluated with the data available there. Misinformation or incorrect information that relates to incorrect or missing versions of the saved data will be avoided.
- data group information the version and / or the manufacturer and / or the date of issue of the traffic request is transmitted separately for each data group, hereinafter referred to as data group information.
- the traffic report request is sent on request. This ensures that the user has in his hand how often and how often he wants to query traffic news. In particular, if he ascertains after a query that traffic obstructions are not to be expected, it is often sufficient that renewed queries are only necessary after a longer driving time. The user of the device is therefore able to send the queries according to his wishes.
- the traffic jams and disabilities that were transmitted due to the traffic request are taken into account when determining the route.
- the location code is transmitted together with the version from the base station when several data groups in the radio or navigation device are evaluated. This ensures that even with extensive geographical areas, eg. B. Germany and France, a clear assignment of the location is achieved so that French locations are assigned to the French data group and German locations to the German data group.
- FIG. 1 shows a mobile vehicle radio device and a central radio transceiver
- FIGS. 2 to 4 the structure of the data word that is sent from the mobile subscriber to the control center
- FIGS. 5 to 7 the structure of the data word that is sent from the control center to the mobile subscriber
- FIG. 8 shows a possible division of data groups.
- FIG. 1 shows a mobile radio device 4 installed in a vehicle, not shown, which is capable of transmitting and receiving radio transmissions via an antenna 5.
- a mobile device z. B. to understand radios that work according to the GSM or AMPS standard, but also individualized radio receivers, eg. B. DAB receivers that have a return channel, or where the transmission of the transmission signal takes place on another mobile radio channel.
- the mobile radio device 4 is connected to a navigation device 6, the navigation device 6 being able to determine a route based on the current location of a vehicle and an entered destination, which the vehicle has to drive.
- the navigation device 6 is connected to a mass storage device 7.
- the mass storage device 7 contains, in digital form, information about roads of a specific geographical area.
- the memory also contains in data groups information for evaluating traffic messages transmitted in coded form, these traffic messages being received in coded form in the radio receiver 4. Details of this are described in DE-OS 35 36 820. Furthermore, information about the location codes of the coded transmitted traffic messages and their linkage with the location codes of the digital map are stored in the memory 7 in the data groups.
- FIG. 1 also shows a base station 2, which is capable of receiving radio signals from the mobile radio device 4 and sending messages back to the mobile radio device 4 via an antenna 3.
- the base station can also be a Broadcasting stations, e.g. B.
- a DAB transmitter that can send out individualized messages, with a return channel receiver or a mobile radio receiver.
- the base station 2 is connected to a memory 1, information about traffic disturbances and traffic obstructions being read into the memory 1, coded and transmitted for transmission Will be provided.
- a connection to the base station 2 is established either manually, if the driver has set this, for example at the push of a button, or automatically by the user of the mobile device 4.
- a radio telegram according to FIG. 2 is now sent to the base station 2.
- the radio telegram according to FIG. 2 has a header 10, by means of which the base station can recognize which type of messages are requested by whom.
- the message according to FIG. 2 has a field for data type 11.
- the data type 11 indicates how the data part 12 and 13 of the radio telegram is structured from the mobile station to the base station.
- the base station is now able, on the one hand, to identify the station to be transmitted and, on the other hand, to recognize the request profile.
- the transmitted radio telegram is evaluated in accordance with data type 11 by the corresponding service provider in the base station.
- the data part 12 is shown in more detail in FIG. 3.
- the data part 12 comprises a field 15 which indicates how many data groups are stored in the memory 7.
- Field 16 indicates whether one or more data groups are allowed when the traffic reports are sent back for evaluation. Act it Only simple recipients who are unable to ensure the evaluation of traffic reports on the basis of several data groups are transmitted in data field 16 that only one data group may be used to generate the traffic messages. The fact that only one data group can be used also arises if only a single data group, for example the location codes, and the road connections from Germany are stored in the memory 7.
- Data field 17 and 18 contains data group information. If only one data group is stored in the memory 7 and only one data group is permitted due to the data field 15, only one data group information is transmitted in the data field 17.
- the data fields 17 and 18 can be supplemented by further data fields.
- the data field 15 must be consistent with the number of data group information in the data fields 17, 18 and following. If the traffic report can only be evaluated with one data group when transmitting mobile radio devices, this is indicated in field 16.
- the data word is supplemented by a further data field 13, through which further information is to be transmitted.
- the other information that can also be transmitted is e.g. B. to information about the intended use of toll roads, and / or the type of vehicle and information about the current location of the vehicle and the desired destination.
- the content of data fields 17 or 18 is shown in detail in FIG. At version 19, the version number of the data group, which is stored in memory 7, is transmitted. On Position 20 stores the issue date on which this data group was issued. The manufacturer of the data group is entered at position 21 in order to be able to distinguish different manufacturers with specific differences in one and the same data group. The manufacturer's version number is given at position 22. This information ensures that the devices in the vehicle are able to reliably decode the traffic reports on the part of the mobile radio device. While it can usually be assumed that a service provider knows the data groups in different versions and from different manufacturers, the vehicle devices will usually have different data groups depending on the age of the vehicle, the manufacturer of the navigation device or the vehicle manufacturer, with regard to their content and their age.
- FIG. 5 shows the data word which is broadcast by the service provider via the base station 2 after it has received and evaluated the data word according to FIG. 2.
- the data field 25 contains the header which, for example, contains the destination address as information, ie for which mobile radio station the message is intended.
- the number of transmitted messages is indicated in field 26, so that the mobile radio device can recognize when the message is complete.
- Field 27 indicates which data group in memory 7 the radio receiver 4 must access in order to be able to evaluate the following information. This information corresponds to the information sent by the mobile radio device 4 in field 19 to the base station. This field is particularly important if the radio receiver is only able to evaluate only one data group when transmitting a message or if only one data group is stored in the memory 7. Traffic messages are now transmitted in field 28, which further fields 29 can follow if more than one traffic message is to be transmitted.
- FIG. 6 shows in detail how the field 28 or further fields 29 are structured in detail.
- the location code of a traffic message is transmitted at location 30, for example at which location of a motorway a traffic jam is to be expected.
- the extent of the traffic disruption is indicated at point 31.
- Position 32 indicates the direction in which the traffic obstruction is located, whether it is, for example, a traffic obstruction in the south or west direction or a traffic obstruction in the north or east direction.
- the location code 30 is in turn divided into two pieces of information, first the data field 35 in which the version number of the field 19 is written, and the actual location code 36.
- This measure ensures that when the Receiver is able to evaluate location codes from different data groups in a data telegram, receives an indication of which data group a particular location code belongs to. For example, if you imagine that the data group for Germany for Saarmaschinen has the same location code as Nice for the data group France, it is very It is important that the data group is also specified for the location code. However, this has the consequence that the location code does not have to be transmitted with a very small bit width, for example with 8 or 16 bits, but with a larger bit width, for example with 32 bits.
- the field 27 is then an empty field in which, for. B. a zero is written.
- the location code of the data field 30 can be shortened to 8 or 16 bits, but it is not possible to pass on data group information. For this reason, for simple receivers, the output of traffic information is limited to a data group that is defined in field 27, in the example mentioned either to Germany or to France.
- FIG. 8 now shows the structure of data groups that is stored in the memory 7 assigned to the mobile radio device 4.
- Data group 38 is a table in which location codes, road connections and standard texts from Germany are stored, as is described in more detail, for example, in DE 35 36 820 or in standard ENV-278/7/3/006.
- the data group 39 relates to location information and road connections that can be found in France and the data group 40 relates to tables in which location codes and road connections of the city of Frankfurt a. M. are listed in more detail.
- the list of data groups can be designed as desired. Data groups with tourist sights, such as the Black Forest or the Allgäu, are also possible.
- the navigation system 6 On the basis of the transmitted traffic information, it is possible for the navigation system 6 to calculate a route from the instantaneous point to the destination point, taking into account the requested traffic reports, whereby traffic obstructions can be avoided as far as this is necessary. It is also useful if the current point and the destination are known to only transmit traffic reports that are in a corridor between the current point and the destination. This ensures that not all traffic reports from Germany or France have to be transmitted, but that traffic reports can be limited to a certain area in the direction of the route.
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Abstract
Description
Die Erfindung geht aus von einem Verfahren zur Anforderung und zur Verarbeitung von Verkehrsmeldungen nach der Gattung des Hauptanspruchs.The invention is based on a method for requesting and processing traffic reports according to the type of the main claim.
Aus der WO 98/26396 sind bereits ein Verfahren und eine Anordnung zur Information mobiler Teilnehmer bekannt geworden. Hierbei werden auf Anfrage und/oder automatisch Daten zwischen einer Zentraleinheit oder einer mobilen Teilnehmereinheit übertragen. Diese Daten sollen insbesondere dazu dienen, dem mobilen Teilnehmer Verkehrsinformation zu übertragen. Grundsätzlich sind hierbei zwei Wege möglich. Einerseits werden dem mobilen Teilnehmer von der Zentrale alle Hinweise zur Verkehrsleitung gegeben, so daß der Verkehrsteilnehmer vollständig auf die Information der Zentrale angewiesen ist. Die andere Möglichkeit ist darin zu sehen, daß der Verkehrsteilnehmer an Bord seines Fahrzeuges ein Navigationsgerät mit sich führt, mittels dem es möglich ist, von der gegebenen augenblicklichen Position zu einer Zielposition eine Verkehrsleitung zu erhalten. In diesem Fall wird die Zentrale lediglich dazu benutzt, um sich von der Zentrale solche Verkehrsinformationen übertragen zu lassen, die zu einer Behinderung der Fahrt führen könnten, insbesondere Staus, Straßensperrungen, Umleitungen oder wetterbedingte Störungen. Diese Informationen können dabei entweder im Klartext übertragen werden oder aber in einer reduzierten Form, wobei lediglich Codes übertragen werden, und diese Codes dann im Empfänger zu vollständigen Nachrichten zusammengesetzt werden. Eine solche Maßnahme ist beispielsweise in der DE-OS 35 36 820 beschrieben. Zum Aussenden und zum Empfangen der Information müssen für jeden Teilnehmer ein Funkgerät vorhanden sein, das sowohl die Aussendung von Nachrichten als auch den Empfang von Nachrichten ermöglicht. Bei einem solchen Funkgerät kann es sich beispielsweise um ein gebräuchliches Mobilfunkgerät handeln, wie dies in der DE 196 51 143 A1 beschrieben ist, es können jedoch auch Sender sein, die auf einer bestimmten Frequenz Informationen zu einer Zentrale aussenden und beispielsweise Rundfunkempfänger, die in der Lage sind, individualisierte Nachrichten zu empfangen. In diesem Fall kann die Zentrale dann nach Bearbeitung der Anfrage die Information über einen Rundfunksender ausstrahlen und aufgrund der individuellen Kennung dafür Sorge tragen, daß die Nachricht nur von dem Empfänger ausgewertet werden kann, der entsprechend individualisiert ist.From WO 98/26396 a method and an arrangement for informing mobile subscribers have already become known. In this case, data are transmitted between a central unit or a mobile subscriber unit on request and / or automatically. These data are intended in particular to transmit traffic information to the mobile subscriber. Basically, two ways are possible. On the one hand, the central station gives the mobile subscriber all the information about traffic management, so that the road user is completely dependent on the information from the central office. The other possibility is to be seen in the fact that the road user carries a navigation device on board his vehicle, by means of which it is possible to obtain traffic management from the given current position to a target position. In this case, the control center is only used to transmit traffic information of this type from the control center that could lead to a hindrance to the journey, in particular traffic jams, road closures, diversions or weather-related disruptions. This information can either be transmitted in plain text or in a reduced form, only codes being transmitted, and these codes then being combined in the receiver to form complete messages. Such a measure is described for example in DE-OS 35 36 820. To send and receive the information, a radio must be available for each participant, which enables both the transmission of messages and the reception of messages. Such a radio device can be, for example, a customary mobile radio device, as described in DE 196 51 143 A1, but it can also be transmitters that send information to a central station on a specific frequency and, for example, radio receivers operating in the Are able to receive customized messages. In this case, after processing the request, the control center can then broadcast the information via a radio transmitter and, on the basis of the individual identifier, ensure that the message can only be evaluated by the recipient who is appropriately individualized.
Die Erfindung ist definient in dem unabhängigen Anspruch 1.The invention is defined in independent claim 1.
Durch die erfindungsgemäße Maßnahme ergibt sich der Vorteil, daß aufgrund der an die Zentrale übertragenen Information gewährleistet ist, daß die codierten Verkehrsnachrichten auf jeden Fall im Fahrzeug auch auszuwerten sind, da aufgrund der übertragenen Versionskennzeichen gewährleistet ist, daß die von der Zentrale zurückübertragenen Informationen auch im Fahrzeug mit den dort vorhandenen Daten ausgewertet werden können. Fehlinformationen oder falsche Informationen, die sich auf falsche oder fehlende Versionen der gespeicherten Daten beziehen, werden dadurch sicher vermieden.The measure according to the invention has the advantage that the information transmitted to the control center ensures that the coded traffic messages must also be evaluated in the vehicle, since the version number transmitted ensures that the information transmitted back from the control center is also in the vehicle Vehicle can be evaluated with the data available there. Misinformation or incorrect information that relates to incorrect or missing versions of the saved data will be avoided.
Durch die Unteransprüche ergeben sich vorteilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch aufgezeigten Verfahrens. So ist es vorteilhaft, daß im Speicher mehrere Datengruppen für unterschiedliche geographische Regionen abgelegt sind. Durch diese Maßnahme wird erreicht, daß das Fahrzeug mit dem Gerät auch in einem größeren geographischen Gebiet, z. B. neben Deutschland auch in Frankreich, Großbritannien und in den Beneluxländern, in der Lage ist, codierte übertragene Verkehrsmeldungen auszuwerten und zu verarbeiten. Als weiterer Vorteil ist anzusehen, daß für eine geographische Region mehrere Datengruppen unterschiedliche Detaillierung im Speicher abgelegt sind. Durch diese Maßnahme wird erreicht, daß beispielsweise für bestimmte Regionen, beispielsweise touristisch interessante Regionen oder Großstädte, weitere und mehr ins Detail gehende Informationen zur Verfügung gestellt werden. Bei Anforderung von Verkehrsinformationen können diese detaillierter vorhandenen Informationen bei einer Antwort von der Basisstation berücksichtigt werden.Advantageous further developments and improvements of the method indicated in the main claim result from the subclaims. So it is advantageous that several data groups for different geographic regions are stored in the memory. This measure ensures that the vehicle with the device in a larger geographical area, eg. B. in addition to Germany in France, Great Britain and the Benelux countries, is able to evaluate and process coded traffic reports. Another advantage is that several data groups with different levels of detail are stored in the memory for a geographical region. This measure ensures that further and more detailed information is made available, for example for certain regions, for example tourist regions or large cities. If traffic information is requested, this more detailed information available can be taken into account in a response from the base station.
Günstig ist es auch, daß für jede Datengruppe getrennt die Version und/oder der Hersteller und/oder das Ausgabedatum der Verkehrsanfrage übertragen wird, im weiteren als Datengruppeninformation bezeichnet. Durch diese Maßnahmen wird erreicht, daß auch dann, wenn beispielsweise die gespeicherten Daten durch Zukauf beispielsweise regional erweitert werden, immer auswertbare Verkehrsinformationen zur Verfügung gestellt werden, unabhängig davon, wie alt die gespeicherten Daten bezüglich der unterschiedlichen Regionen sind.It is also favorable that the version and / or the manufacturer and / or the date of issue of the traffic request is transmitted separately for each data group, hereinafter referred to as data group information. These measures ensure that, even if, for example, the stored data is expanded, for example regionally, through purchase, traffic information that can be evaluated is always made available, regardless of how old the stored data are with respect to the different regions.
Weiterhin ist es vorteilhaft, mit der Verkehrsmeldungsanfrage eine Information zu übermitteln, ob der Funkempfänger mit dem Navigationsgerät in der Lage ist, mehrere Datengruppen gleichzeitig auszuwerten oder nicht. Insbesondere bei einfacheren Geräten besteht das Problem, daß jeweils immer nur Verkehrsmeldungen unter Benutzung einer Datengruppe ausgewertet werden können. Es ist daher nicht sinnvoll, wenn von der Basisstation bei einer Übertragung Verkehrsinformationen übermittelt werden, die mehrere Datengruppen zur Auswertung erfordern, da dann eine Auswertung in einer vorgegebenen Reaktionszeit nicht mehr möglich ist. Aus der Basisstation werden dann nur solche Informationen zurückgesandt, die mit einer Datengruppe auswertbar sind.Furthermore, it is advantageous to transmit information with the traffic message request as to whether or not the radio receiver with the navigation device is able to evaluate several data groups at the same time. In the case of simpler devices in particular, there is the problem that only traffic reports can be evaluated using one data group at a time. It is therefore not sensible if the base station transmits traffic information during a transmission that requires several data groups for evaluation, since evaluation in a given reaction time is then no longer possible. Only information that can be evaluated with a data group is then sent back from the base station.
Vorteilhaft ist es auch, daß die Verkehrsmeldungsanfrage auf Anforderung abgesandt wird. Dadurch wird erreicht, daß der Nutzer es in der Hand hat, wie oft und wie häufig er Verkehrsnachrichten abfragen möchte. Insbesondere dann, wenn er nach einer Abfrage feststellt, daß Verkehrsbehinderungen nicht zu erwarten sind, ist es oft hinreichend, daß neuerliche Abfragen erst nach längerer Fahrzeit überhaupt erforderlich sind. Der Nutzer des Gerätes ist daher in der Lage, die Abfragen gemäß seinen Wünschen auszusenden.It is also advantageous that the traffic report request is sent on request. This ensures that the user has in his hand how often and how often he wants to query traffic news. In particular, if he ascertains after a query that traffic obstructions are not to be expected, it is often sufficient that renewed queries are only necessary after a longer driving time. The user of the device is therefore able to send the queries according to his wishes.
Günstig ist es auch, die Verkehrsmeldungsanfrage in vorgegebenen Zeitabständen vorzunehmen. Durch diese Maßnahme wird der Fahrer eines Fahrzeuges entlastet. Er muß nicht immer daran denken, ob eine neue Verkehrsmeldung erforderlich ist. Vielmehr wird in Abhängigkeit von der befahrenen Strecke oder nach zeitlichen Vorgaben eine Abfrage nach Verkehrsbehinderungen vorgenommen, so daß der Fahrer, ohne daß er selbst darüber nachdenken muß, ständig über das aktuelle Verkehrsgeschehen, insbesondere über neue Behinderungen auf den Straßen, informiert ist.It is also favorable to make the traffic announcement request at predetermined time intervals. This measure relieves the driver of a vehicle. He does not always have to think about whether a new traffic announcement is required. Rather, depending on the route traveled or according to time requirements, a query for traffic obstructions is carried out so that the driver is constantly informed about the current traffic situation, in particular about new disabilities on the roads, without having to think about it himself.
Vorteilhaft ist es auch, aufgrund der eingegangenen Verkehrsmeldungen eine Route von einem augenblicklichen Punkt zu einem Zielpunkt zu berechnen. Hierbei werden die Staus und Behinderungen, die aufgrund der Verkehrsanfrage übertragen wurden, bei der Routenermittlung berücksichtigt. Weiter ist es vorteilhaft, nicht sämtliche Verkehrsmeldungen, die den Abfragekriterien entsprechen, zu übertragen, sondern nur solche Verkehrsmeldungen, die in einem vorgegebenen Korridor zwischen dem augenblicklichen Punkt und dem Zielpunkt liegen. Dadurch wird erreicht, daß die Zahl der Verkehrsmeldungen weiterhin eingeschränkt wird, wobei darauf zu achten ist, daß der Korridor so gewählt ist, daß auch mögliche und sinnvolle Umgehungsstraßen erfaßt werden.It is also advantageous to calculate a route from an instantaneous point to a destination based on the traffic reports received. The traffic jams and disabilities that were transmitted due to the traffic request are taken into account when determining the route. It is also advantageous not to transmit all traffic reports that correspond to the query criteria, but only those traffic reports that lie in a predefined corridor between the current point and the destination point. The result is that the number of traffic reports will continue to be restricted, whereby care must be taken that the corridor is chosen in such a way that possible and sensible bypasses are also recorded.
Günstig ist es auch, daß bei der Auswertemöglichkeit von mehreren Datengruppen im Funkgerät oder Navigationsgerät der Ortscode zusammen mit der Version von der Basisstation übertragen wird. Dadurch wird erreicht, daß auch bei ausgedehnten geographischen Gebieten, z. B. Deutschland und Frankreich, eine eindeutige Zuordnung des Ortes erreicht wird, so daß französischen Orten der französischen Datengruppe und deutsche Orte der deutschen Datengruppe zugeordnet sind.It is also favorable that the location code is transmitted together with the version from the base station when several data groups in the radio or navigation device are evaluated. This ensures that even with extensive geographical areas, eg. B. Germany and France, a clear assignment of the location is achieved so that French locations are assigned to the French data group and German locations to the German data group.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der folgenden Beschreibung näher erläutert. Es zeigen Figur 1 ein Fahrzeugmobilfunkgerät und eine zentrale Funksendeempfangsanlage, Figuren 2 bis 4 den Aufbau des Datenwortes, das vom mobilen Teilnehmer zur Zentrale gesandt wird, Figuren 5 bis 7 den Aufbau des Datenwortes, das von der Zentrale an den mobilen Teilnehmer zurückgesandt wird und Figur 8 eine mögliche Aufteilung von Datengruppen.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. FIG. 1 shows a mobile vehicle radio device and a central radio transceiver, FIGS. 2 to 4 the structure of the data word that is sent from the mobile subscriber to the control center, FIGS. 5 to 7 the structure of the data word that is sent from the control center to the mobile subscriber and FIG. 8 shows a possible division of data groups.
Figur 1 zeigt ein in einem nicht dargestellten Fahrzeug eingebautes Mobilfunkgerät 4, das in der Lage ist, über eine Antenne 5 Funksendungen auszustrahlen und solche zu empfangen. Unter einem Mobilfunkgerät sind z. B. Funkgeräte zu verstehen, die nach dem GSM- oder AMPS-Standard arbeiten, jedoch auch individualisierte Rundfunkempfänger, z. B. DAB-Empfänger, die einen Rückkanal aufweisen, oder wo die Ausstrahlung des Sendesignals auf einem anderen Mobilfunkkanal erfolgt. Das Mobilfunkgerät 4 ist mit einem Navigationsgerät 6 verbunden, wobei das Navigationsgerät 6 in der Lage ist, aufgrund des augenblicklichen Standorts eines Fahrzeuges und eines eingegebenen Zielorts eine Route zu bestimmen, die das Fahrzeug zu fahren hat. Hierzu ist das Navigationsgerät 6 mit einem Massenspeicher 7 verbunden. Der Massenspeicher 7 enthält in digitaler Form Informationen über Straßen eines bestimmten geographischen Gebietes. Weiterhin enthält der Speicher in Datengruppen Informationen zur Auswertung von in codierter Form übertragenen Verkehrsnachrichten, wobei diese Verkehrsnachrichten codiert im Funkempfänger 4 empfangen werden. Einzelheiten hierzu sind in der DE-OS 35 36 820 beschrieben. Weiterhin sind im Speicher 7 in den Datengruppen Informationen über die Ortscodes der codiert übertragenen Verkehrsnachrichten abgelegt sowie deren Verknüpfung mit den Ortscodes der digitalen Karte. Figur 1 zeigt weiterhin eine Basisstation 2, die über eine Antenne 3 in der Lage ist, Funksignale vom Mobilfunkgerät 4 zu empfangen und Nachrichten an das Mobilfunkgerät 4 zurückzusenden. Die Basisstation kann neben einer Mobilfunkbasisstation eines Mobilfunknetzes auch ein Rundfunksender, z. B. ein DAB-Sender sein, der individualisierte Nachrichten aussenden kann, mit einem Rückkanalempfänger oder einem Mobilfunkempfänger.Die Basisstation 2 ist mit einem Speicher 1 verbunden, wobei in dem Speicher 1 Informationen über Verkehrsstörungen und Verkehrsbehinderungen eingelesen werden, codiert werden und zur Ausstrahlung zur Verfügung gestellt werden.FIG. 1 shows a mobile radio device 4 installed in a vehicle, not shown, which is capable of transmitting and receiving radio transmissions via an antenna 5. Under a mobile device z. B. to understand radios that work according to the GSM or AMPS standard, but also individualized radio receivers, eg. B. DAB receivers that have a return channel, or where the transmission of the transmission signal takes place on another mobile radio channel. The mobile radio device 4 is connected to a navigation device 6, the navigation device 6 being able to determine a route based on the current location of a vehicle and an entered destination, which the vehicle has to drive. For this purpose, the navigation device 6 is connected to a mass storage device 7. The mass storage device 7 contains, in digital form, information about roads of a specific geographical area. The memory also contains in data groups information for evaluating traffic messages transmitted in coded form, these traffic messages being received in coded form in the radio receiver 4. Details of this are described in DE-OS 35 36 820. Furthermore, information about the location codes of the coded transmitted traffic messages and their linkage with the location codes of the digital map are stored in the memory 7 in the data groups. FIG. 1 also shows a base station 2, which is capable of receiving radio signals from the mobile radio device 4 and sending messages back to the mobile radio device 4 via an antenna 3. In addition to a mobile radio base station of a mobile radio network, the base station can also be a Broadcasting stations, e.g. B. A DAB transmitter that can send out individualized messages, with a return channel receiver or a mobile radio receiver. The base station 2 is connected to a memory 1, information about traffic disturbances and traffic obstructions being read into the memory 1, coded and transmitted for transmission Will be provided.
Tritt nun der Fahrer eines Fahrzeuges eine Fahrt an und hat in sein Navigationssystem einen Zielpunkt eingegeben, so wird entweder manuell, wenn dies der Fahrer so eingestellt hat, beispielsweise per Knopfdruck, oder automatisch vom Benutzer des Mobilgerätes 4 eine Verbindung mit der Basisstation 2 aufgebaut.If the driver of a vehicle starts a journey and has entered a destination in his navigation system, a connection to the base station 2 is established either manually, if the driver has set this, for example at the push of a button, or automatically by the user of the mobile device 4.
Zu der Basisstation 2 wird nunmehr ein Funktelegramm gemäß Figur 2 abgesetzt. Das Funktelegramm gemäß Figur 2 weist einen Header 10 auf, anhand dem die Basisstation erkennen kann, von wem welche Art von Nachrichten angefordert werden. Weiterhin weist die Nachricht gemäß Figur 2 ein Feld für den Datentyp 11 auf. Der Datentyp 11 gibt an, wie der Datenteil 12 und 13 des Funktelegramms von der mobilen Station zur Basisstation aufgebaut ist. Anhand dieser Information ist nunmehr die Basisstation in der Lage, einerseits die zu sendende Station zu identifizieren und andererseits das Anfrageprofil zu erkennen. Vom entsprechenden Dienstanbieter in der Basisstation wird das übertragene Funktelegramm entsprechend dem Datentyp 11 ausgewertet.A radio telegram according to FIG. 2 is now sent to the base station 2. The radio telegram according to FIG. 2 has a header 10, by means of which the base station can recognize which type of messages are requested by whom. Furthermore, the message according to FIG. 2 has a field for data type 11. The data type 11 indicates how the data part 12 and 13 of the radio telegram is structured from the mobile station to the base station. On the basis of this information, the base station is now able, on the one hand, to identify the station to be transmitted and, on the other hand, to recognize the request profile. The transmitted radio telegram is evaluated in accordance with data type 11 by the corresponding service provider in the base station.
Der Datenteil 12 ist in der Figur 3 detaillierter dargestellt. Im Ausführungsbeispiel umfaßt der Datenteil 12 ein Feld 15, in dem angegeben ist, wieviel Datengruppen im Speicher 7 abgelegt sind. Im Feld 16 ist angegeben, ob eine oder mehrere Datengruppen bei der Rücksendung der Verkehrsmeldungen zur Auswertung erlaubt sind. Handelt es sich lediglich um einfache Empfänger, die nicht in der Lage sind, die Auswertung von Verkehrsmeldungen auf der Basis mehrerer Datengruppen zu gewährleisten, wird im Datenfeld 16 übertragen, daß lediglich eine Datengruppe zur Erzeugung der Verkehrsnachrichten verwendet werden darf. Daß lediglich eine Datengruppe verwendet werden kann, ergibt sich auch dann, wenn im Speicher 7 nur eine einzige Datengruppe, beispielsweise die Ortscodes, sowie die Straßenverbindungen von Deutschland gespeichert sind. Das Datenfeld 17 und 18 enthält Datengruppeninformationen. Ist nur eine Datengruppe im Speicher 7 abgelegt und wird aufgrund des Datenfelds 15 nur eine Datengruppe zugelassen, wird auch nur eine Datengruppeninformation im Datenfeld 17 übertragen. Sind zwei Datengruppeninformationen zugelassen, werden zwei Datengruppeninformationen übertragen, sind mehrere Datengruppen zugelassen, so können die Datenfelder 17 und 18 durch weitere Datenfelder ergänzt werden. Das Datenfeld 15 muß konsistent sein mit der Zahl der Datengruppeninformationen in den Datenfeldern 17, 18 und folgende. Kann bei einer Übertragung von Mobilfunkgeräten die Auswertung der Verkehrsmeldung nur mit einer Datengruppe erfolgen, wird dies im Feld 16 angegeben.The data part 12 is shown in more detail in FIG. 3. In the exemplary embodiment, the data part 12 comprises a field 15 which indicates how many data groups are stored in the memory 7. Field 16 indicates whether one or more data groups are allowed when the traffic reports are sent back for evaluation. Act it Only simple recipients who are unable to ensure the evaluation of traffic reports on the basis of several data groups are transmitted in data field 16 that only one data group may be used to generate the traffic messages. The fact that only one data group can be used also arises if only a single data group, for example the location codes, and the road connections from Germany are stored in the memory 7. Data field 17 and 18 contains data group information. If only one data group is stored in the memory 7 and only one data group is permitted due to the data field 15, only one data group information is transmitted in the data field 17. If two data group information are permitted, two data group information are transmitted, and several data groups are permitted, the data fields 17 and 18 can be supplemented by further data fields. The data field 15 must be consistent with the number of data group information in the data fields 17, 18 and following. If the traffic report can only be evaluated with one data group when transmitting mobile radio devices, this is indicated in field 16.
In Figur 2 ist das Datenwort noch durch ein weiteres Datenfeld 13 ergänzt, durch das weitere Informationen zu übertragen sind. Bei den weiteren Informationen, die zusätzlich übertragen werden können, handelt es sich z. B. um Informationen über die beabsichtigte Nutzung von gebührenpflichtigen Straßen, und/oder der Fahrzeugart sowie Informationen über den augenblicklichen Standort des Fahrzeuges sowie das gewünschte Ziel.In FIG. 2, the data word is supplemented by a further data field 13, through which further information is to be transmitted. The other information that can also be transmitted is e.g. B. to information about the intended use of toll roads, and / or the type of vehicle and information about the current location of the vehicle and the desired destination.
In Figur 4 ist im Detail der Inhalt der Datenfelder 17 oder 18 dargestellt. An der Stelle 19 wird die Versionsnummer der Datengruppe übertragen, die im Speicher 7 abgelegt ist. An der Stelle 20 ist das Ausgabedatum eingespeichert, an dem diese Datengruppe herausgegeben worden ist. An der Stelle 21 ist der Hersteller der Datengruppe eingetragen, um unterschiedliche Hersteller mit spezifischen Unterschieden bei ein und derselben Datengruppe unterscheiden zu können. An der Stelle 22 ist die Versionsnummer des Herstellers angegeben. Durch diese Information wird sichergestellt, daß die im Fahrzeug befindlichen Einrichtungen in der Lage sind, die Verkehrsmeldungen auf Seiten des Mobilfunkgerätes sicher decodieren zu können. Während üblicherweise vorausgesetzt werden kann, daß ein Diensteanbieter die Datengruppen in unterschiedlichen Versionen und von unterschiedlichen Herstellern kennt, wird in den Fahrzeuggeräten üblicherweise in Abhängigkeit vom Alter des Fahrzeuges, vom Hersteller des Navigationsgerätes oder auch vom Fahrzeughersteller unterschiedliche Datengruppen vorhanden sein, die sich bezüglich ihres Inhalts und ihres Alters unterscheiden. Da Straßen ständig hinzukommen und andere Straßen entfallen, sowie auch Bezeichnungen der Ortsnamen häufig geändert werden, ist nämlich dann, wenn im Fahrzeug eine ältere Version einer Datengruppe gespeichert ist, eine Auswertung der Information vom Dienstanbieter dann nicht mehr möglich, wenn von der Basisstation Verkehrsinformationen aufgrund einer neueren Version der Tabellen der Datengruppen erstellt worden sind. Durch die Übertragung der Versionsnummern, des Herstellers der entsprechenden Version und der Erstellungsdaten wird es möglich, sicherzustellen, daß vom Diensteanbieter nur solche Daten übertragen werden, die vom Fahrzeuggerät ausgewertet werden können. Andererseits werden solche Daten nicht übertragen, für die entweder im Fahrzeuggerät keine Datengruppen vorhanden sind oder wo deren Auswertung behindert ist. Es ist nämlich nicht sinnvoll, falls sich ein Fahrzeug z. B. im Grenzgebiet zwischen Deutschland und Frankreich befindet, und der Fahrer beabsichtigt, nach Frankreich zu fahren, Informationen über französische Verkehrshindernisse zu übermitteln, wenn die Datentabellen im Fahrzeugempfänger nicht dazu geeignet sind, Verkehrsinformationen auf französischem Gebiet auszuwerten. Andererseits ist es auch nicht sinnvoll, dann Daten zu übermitteln, wenn der Fahrzeugempfänger aufgrund seiner einfachen Bauart nur in der Lage ist, im Rahmen eines Datentelegrammes Informationen einer einzigen Datengruppe auszuwerten. In diesem Fall ist es auch dann, wenn im Fahrzeugempfänger sowohl die französische als auch die deutsche Datentabelle enthalten ist, nicht zweckmäßig, deutsche und französische Verkehrsinformationen gemischt zu übertragen. Dies wird gegebenenfalls durch die Angaben im Datenfeld 16 verhindert.The content of data fields 17 or 18 is shown in detail in FIG. At version 19, the version number of the data group, which is stored in memory 7, is transmitted. On Position 20 stores the issue date on which this data group was issued. The manufacturer of the data group is entered at position 21 in order to be able to distinguish different manufacturers with specific differences in one and the same data group. The manufacturer's version number is given at position 22. This information ensures that the devices in the vehicle are able to reliably decode the traffic reports on the part of the mobile radio device. While it can usually be assumed that a service provider knows the data groups in different versions and from different manufacturers, the vehicle devices will usually have different data groups depending on the age of the vehicle, the manufacturer of the navigation device or the vehicle manufacturer, with regard to their content and their age. Since roads are constantly being added and other roads are no longer used, and the names of place names are frequently changed, if the vehicle has an older version of a data group stored, it is no longer possible to evaluate the information from the service provider if the base station has traffic information a newer version of the tables of the data groups have been created. By transmitting the version numbers, the manufacturer of the corresponding version and the creation data, it is possible to ensure that the service provider only transmits data that can be evaluated by the vehicle device. On the other hand, data are not transmitted for which there are either no data groups in the vehicle device or where their evaluation is hindered. It does not make sense if a vehicle z. B. is located in the border area between Germany and France, and the driver intends to drive to France, information about to transmit French traffic obstacles if the data tables in the vehicle receiver are not suitable for evaluating traffic information in French territory. On the other hand, it does not make sense to transmit data if, due to its simple design, the vehicle receiver is only able to evaluate information from a single data group as part of a data telegram. In this case, even if the vehicle receiver contains both the French and the German data table, it is not expedient to transmit mixed German and French traffic information. This may be prevented by the information in data field 16.
In Figur 5 ist das Datenwort dargestellt, das über die Basisstation 2 vom Serviceprovider abgestrahlt wird, nachdem er das Datenwort gemäß Figur 2 empfangen und ausgewertet hat. Im Datenfeld 25 ist der Header enthalten, der zum Beispiel als Information die Zieladresse enthält, d. h. für welche Mobilfunkstation die Nachricht bestimmt ist. Im Feld 26 ist die Zahl der übertragenen Nachrichten angegeben, so daß das Mobilfunkgerät erkennen kann, wann die Nachricht vollständig ist. Im Feld 27 ist angegeben, auf welche Datengruppe im Speicher 7 der Funkempfänger 4 zugreifen muß, um die nachfolgenden Informationen auswerten zu können. Diese Information entspricht der Information, die vom Mobilfunkgerät 4 im Feld 19 an die Basisstation gesandt wurde. Dieses Feld ist insbesondere dann wichtig, wenn der Funkempfänger lediglich in der Lage ist, bei der Übertragung einer Nachricht nur eine Datengruppe auszuwerten oder aber nur eine Datengruppe im Speicher 7 abgelegt ist. Im Feld 28 werden nun Verkehrsnachrichten übertragen, dem weitere Felder 29 folgen können, wenn mehr als eine Verkehrsnachricht zu übertragen ist.FIG. 5 shows the data word which is broadcast by the service provider via the base station 2 after it has received and evaluated the data word according to FIG. 2. The data field 25 contains the header which, for example, contains the destination address as information, ie for which mobile radio station the message is intended. The number of transmitted messages is indicated in field 26, so that the mobile radio device can recognize when the message is complete. Field 27 indicates which data group in memory 7 the radio receiver 4 must access in order to be able to evaluate the following information. This information corresponds to the information sent by the mobile radio device 4 in field 19 to the base station. This field is particularly important if the radio receiver is only able to evaluate only one data group when transmitting a message or if only one data group is stored in the memory 7. Traffic messages are now transmitted in field 28, which further fields 29 can follow if more than one traffic message is to be transmitted.
In Figur 6 ist im Detail gezeigt, wie das Feld 28 oder weitere Felder 29 im einzelnen aufgebaut sind. An der Stelle 30 wird der Ortscode einer Verkehrsnachricht übertragen, beispielsweise an welcher Stelle einer Autobahn mit einem Stau zu rechnen ist. An der Stelle 31 wird die Erstreckung der Verkehrsstörung angegeben. Hier ist beispielsweise vermerkt, ob sich ein eventuell vorhandener Stau oder die Sperrung einer Straße über eine oder mehrere Ausfahrten oder über eine bestimmte Anzahl von Kilometern erstreckt. An der Stelle 32 ist angegeben, in welcher Richtung sich die Verkehrsbehinderung befindet, ob es sich beispielsweise um eine Verkehrsbehinderung in Fahrtrichtung Süden oder Westen oder um eine Verkehrsbehinderung in Richtung Norden oder Osten handelt. Mit den so vorliegenden Informationen ist es nunmehr für ein Navigationssystem möglich, die Routenberechnung so vorzunehmen, daß der Zeitaufwand für den Fahrer eines Fahrzeuges sehr gering ist. Sind nämlich die Behinderungen als solche und die Länge der Behinderungen sowie deren Richtung bekannt, so kann das Navigationssystem aufgrund des Kartenmaterials, das es auch dem Speicher 7 entnehmen kann, überprüfen, ob eventuell eine andere Route, die länger ist als die zuvor berechnete Route, schneller zum Ziel führt oder nicht.FIG. 6 shows in detail how the field 28 or further fields 29 are structured in detail. The location code of a traffic message is transmitted at location 30, for example at which location of a motorway a traffic jam is to be expected. The extent of the traffic disruption is indicated at point 31. Here it is noted, for example, whether a possible traffic jam or the blocking of a road extends over one or more exits or over a certain number of kilometers. Position 32 indicates the direction in which the traffic obstruction is located, whether it is, for example, a traffic obstruction in the south or west direction or a traffic obstruction in the north or east direction. With the information available in this way, it is now possible for a navigation system to carry out the route calculation in such a way that the time required for the driver of a vehicle is very short. If the disabilities as such and the length of the disabilities and their direction are known, the navigation system can use the map material, which it can also get from the memory 7, to check whether another route that is longer than the previously calculated route may leads to the goal faster or not.
In Figur 7 wird ersichtlich, daß der Ortscode 30 wiederum in zwei Informationen aufgeteilt ist, einmal das Datenfeld 35, in dem die Versionsnummer des Feldes 19 eingeschrieben ist, sowie in den eigentlichen Ortscode 36. Durch diese Maßnahme wird erreicht, daß dann, wenn der Empfänger in der Lage ist, Ortscodes aus unterschiedlichen Datengruppen in einem Datentelegramm auszuwerten, einen Hinweis bekommt, zu welcher Datengruppe ein bestimmter Ortscode gehört. Stellt man sich beispielsweise vor, daß die Datengruppe für Deutschland für Saarbrücken den gleichen Ortscode hat, wie Nizza für die Datengruppe Frankreich, so ist es sehr wichtig, daß zum Ortscode auch die Datengruppe angegeben wird. Dies hat jedoch zur Folge, daß der Ortscode nicht mit einer sehr geringen Bitbreite, beispielsweise mit 8 oder 16 Bit, sondern mit einer höheren Bitbreite, beispielsweise mit 32 Bit übertragen werden muß. Das Feld 27 ist dann ein Leerfeld, in das z. B. eine Null eingeschrieben wird. Es ist nun aber möglich, daß nicht alle Empfänger in der Lage sind, diese komplexeren Ortscodes auszuwerten. Diese sind daher allein auf die Datengruppenangabe im Feld 27 angewiesen, wo die Datengruppe für sämtliche nachfolgenden Verkehrsinformationen festgelegt ist, wohingegen keine Festlegung erfolgt, wenn die Datengruppe später mit dem Ortscode verknüpft wird. Im ersten Fall kann zwar der Ortscode des Datenfelds 30 auf 8 oder 16 Bit verkürzt werden, es ist aber nicht möglich, Datengruppeninformationen weiterzugeben. Aus diesem Grunde ist daher bei einfachen Empfängern die Ausgabe von Verkehrsinformationen auf eine Datengruppe beschränkt, die im Feld 27 festgelegt ist, im erwähnten Beispiel entweder auf Deutschland oder auf Frankreich.In Figure 7 it can be seen that the location code 30 is in turn divided into two pieces of information, first the data field 35 in which the version number of the field 19 is written, and the actual location code 36. This measure ensures that when the Receiver is able to evaluate location codes from different data groups in a data telegram, receives an indication of which data group a particular location code belongs to. For example, if you imagine that the data group for Germany for Saarbrücken has the same location code as Nice for the data group France, it is very It is important that the data group is also specified for the location code. However, this has the consequence that the location code does not have to be transmitted with a very small bit width, for example with 8 or 16 bits, but with a larger bit width, for example with 32 bits. The field 27 is then an empty field in which, for. B. a zero is written. However, it is now possible that not all receivers are able to evaluate these more complex location codes. These are therefore solely dependent on the data group specification in field 27, where the data group is defined for all subsequent traffic information, whereas no specification is made if the data group is later linked to the location code. In the first case, the location code of the data field 30 can be shortened to 8 or 16 bits, but it is not possible to pass on data group information. For this reason, for simple receivers, the output of traffic information is limited to a data group that is defined in field 27, in the example mentioned either to Germany or to France.
Figur 8 zeigt nunmehr den Aufbau von Datengruppen, der in dem dem Mobilfunkgerät 4 zugeordneten Speicher 7 abgelegt ist. Bei der Datengruppe 38 handelt es sich um eine Tabelle, in der Ortscodes, Straßenverbindungen und Standardtexte von Deutschland abgelegt sind, so wie es beispielsweise in der DE 35 36 820 oder im Standard ENV-278/7/3/006 näher beschrieben ist. Die Datengruppe 39 betrifft Ortsangaben und Straßenverbindungen, die in Frankreich anzutreffen sind und die Datengruppe 40 betrifft Tabellen, in der Ortscodes und Straßenverbindungen der Stadt Frankfurt a. M. näher aufgeführt sind. Die Liste der Datengruppen läßt sich hierbei beliebig gestalten. So sind auch Datengruppen mit touristischen Sehenswürdigkeiten, beispielsweise des Schwarzwalds oder des Allgäus möglich.FIG. 8 now shows the structure of data groups that is stored in the memory 7 assigned to the mobile radio device 4. Data group 38 is a table in which location codes, road connections and standard texts from Germany are stored, as is described in more detail, for example, in DE 35 36 820 or in standard ENV-278/7/3/006. The data group 39 relates to location information and road connections that can be found in France and the data group 40 relates to tables in which location codes and road connections of the city of Frankfurt a. M. are listed in more detail. The list of data groups can be designed as desired. Data groups with tourist sights, such as the Black Forest or the Allgäu, are also possible.
Aufgrund der übertragenen Verkehrsinformation ist es für das Navigationssystem 6 möglich, unter Berücksichtigung der angeforderten Verkehrsmeldungen eine Route vom augenblicklichen Punkt zum Zielpunkt zu berechnen, wobei Verkehrsbehinderungen, so weit dies erforderlich ist, umgangen werden können. Weiterhin ist es sinnvoll, wenn der augenblickliche Punkt und der Zielpunkt bekannt sind, nur solche Verkehrsmeldungen zu übertragen, die sich in einem Korridor zwischen dem augenblicklichen Punkt und dem Zielpunkt befinden. Dadurch wird erreicht, daß nicht alle Verkehrsmeldungen von Deutschland oder Frankreich übertragen werden müssen, sondern sich die Verkehrsmeldungen auf einen bestimmten Bereich in Richtung Fahrtstrecke beschränken können.On the basis of the transmitted traffic information, it is possible for the navigation system 6 to calculate a route from the instantaneous point to the destination point, taking into account the requested traffic reports, whereby traffic obstructions can be avoided as far as this is necessary. It is also useful if the current point and the destination are known to only transmit traffic reports that are in a corridor between the current point and the destination. This ensures that not all traffic reports from Germany or France have to be transmitted, but that traffic reports can be limited to a certain area in the direction of the route.
Claims (12)
- Method for requesting and for processing traffic announcements which involves a traffic announcement enquiry being sent by a radio (4), and a service provider using a base station (2) to provide at least one traffic announcement which is transmitted to the radio (4), the traffic announcements being transmitted by radio in the form of a short message, preferably in the form of a TMC message, characterized in that the traffic announcement enquiry comprises information about the version of the stored data group or data groups in the memory (7) associated with the radio (4) and/or about the producer of the stored data and/or about the date of issue of the stored data, and in that the acknowledgements transmitted from the service provider to the radio (4) are just such traffic announcements as can be evaluated on the basis of the data or data groups stored in the memory (7) associated with the radio (4).
- Method according to Claim 1, characterized in that the memory (7) stores a plurality of data groups for different geographical data.
- Method according to Claim 1 or 2, characterized in that a geographical region has a plurality of data groups (38, 39, 40) with different details stored for it in the memory (7).
- Method according to one of the preceding claims, characterized in that for each data group the version and/or producer and/or date of issue are transmitted separately in the traffic announcement enquiry.
- Method according to one of the preceding claims, characterized in that the traffic announcement enquiry contains information (16) regarding whether the radio (4) uses a navigation appliance (6) to evaluate only traffic announcements on the basis of a data group (38, 39, 40), and in that this information (16) is taken as a basis for transmitting only traffic announcements which can be evaluated with a data group (38, 39, 40).
- Method according to one of the preceding claims, characterized in that the traffic announcement enquiry is sent on request.
- Method according to one of Claims 1 to 5, characterized in that the traffic announcement enquiry is sent automatically, preferably at prescribed intervals of time.
- Method according to one of the preceding claims, characterized in that the requested traffic announcements are taken into account to calculate a route from the current point of the radio (4) to a destination.
- Method according to one of the preceding claims, characterized in that the current point of the radio (4) and a destination are transmitted by the radio (4) with the traffic announcement enquiry, and in that only traffic announcements in a corridor between the current point and the destination are transmitted to the radio (4).
- Method according to one of the preceding claims, characterized in that if a plurality of data groups (38, 39, 40) in the radio (4) have the option of evaluation, a location code (36) is transmitted together with the information about the version (35).
- Method according to one of the preceding claims, characterized in that the version of the data group (27) is transmitted once by the base station (2) if the radio (4) has signalled that the evaluation of the traffic announcements is based on one data group (38, 39, 40).
- Method according to Claims 1 to 10, characterized in that the version of the data group (35) is transmitted with the location code (36) of the respective traffic announcement if the radio (4) has signalled that the evaluation of the traffic announcements can be based on a plurality of data groups (38, 39, 40).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE19937372A DE19937372A1 (en) | 1999-08-12 | 1999-08-12 | Procedure for requesting and processing traffic reports |
DE19937372 | 1999-08-12 |
Publications (3)
Publication Number | Publication Date |
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EP1079353A2 EP1079353A2 (en) | 2001-02-28 |
EP1079353A3 EP1079353A3 (en) | 2001-08-22 |
EP1079353B1 true EP1079353B1 (en) | 2004-04-28 |
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Application Number | Title | Priority Date | Filing Date |
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EP00115719A Expired - Lifetime EP1079353B1 (en) | 1999-08-12 | 2000-07-21 | Method for requesting and processing traffic messages |
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US (1) | US6434477B1 (en) |
EP (1) | EP1079353B1 (en) |
JP (1) | JP2001082967A (en) |
AT (1) | ATE265727T1 (en) |
AU (1) | AU775994B2 (en) |
DE (2) | DE19937372A1 (en) |
DK (1) | DK1079353T3 (en) |
ES (1) | ES2219229T3 (en) |
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1999
- 1999-08-12 DE DE19937372A patent/DE19937372A1/en not_active Withdrawn
-
2000
- 2000-05-11 US US09/568,839 patent/US6434477B1/en not_active Expired - Fee Related
- 2000-07-21 DK DK00115719T patent/DK1079353T3/en active
- 2000-07-21 DE DE50006225T patent/DE50006225D1/en not_active Expired - Lifetime
- 2000-07-21 EP EP00115719A patent/EP1079353B1/en not_active Expired - Lifetime
- 2000-07-21 AT AT00115719T patent/ATE265727T1/en not_active IP Right Cessation
- 2000-07-21 ES ES00115719T patent/ES2219229T3/en not_active Expired - Lifetime
- 2000-08-11 AU AU51965/00A patent/AU775994B2/en not_active Ceased
- 2000-08-14 JP JP2000246075A patent/JP2001082967A/en active Pending
Cited By (10)
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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 |
US7804860B2 (en) | 2005-10-05 | 2010-09-28 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
US7840868B2 (en) | 2005-10-05 | 2010-11-23 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
US8018976B2 (en) | 2005-10-05 | 2011-09-13 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
US8018978B2 (en) | 2005-10-05 | 2011-09-13 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
US8018977B2 (en) | 2005-10-05 | 2011-09-13 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
US8098694B2 (en) | 2005-10-05 | 2012-01-17 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
US8473807B2 (en) | 2005-10-05 | 2013-06-25 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
US8542709B2 (en) | 2005-10-05 | 2013-09-24 | Lg Electronics Inc. | Method of processing traffic information and digital broadcast system |
Also Published As
Publication number | Publication date |
---|---|
AU5196500A (en) | 2001-02-15 |
US6434477B1 (en) | 2002-08-13 |
ES2219229T3 (en) | 2004-12-01 |
ATE265727T1 (en) | 2004-05-15 |
DK1079353T3 (en) | 2004-07-26 |
JP2001082967A (en) | 2001-03-30 |
DE19937372A1 (en) | 2001-02-15 |
AU775994B2 (en) | 2004-08-19 |
EP1079353A2 (en) | 2001-02-28 |
EP1079353A3 (en) | 2001-08-22 |
DE50006225D1 (en) | 2004-06-03 |
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