EP0921510B1 - Gerät zur Verarbeitung einer Verkehrsmeldung - Google Patents

Gerät zur Verarbeitung einer Verkehrsmeldung Download PDF

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Publication number
EP0921510B1
EP0921510B1 EP19980122052 EP98122052A EP0921510B1 EP 0921510 B1 EP0921510 B1 EP 0921510B1 EP 19980122052 EP19980122052 EP 19980122052 EP 98122052 A EP98122052 A EP 98122052A EP 0921510 B1 EP0921510 B1 EP 0921510B1
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EP
European Patent Office
Prior art keywords
area
traffic message
areas
user
traffic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19980122052
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English (en)
French (fr)
Other versions
EP0921510A3 (de
EP0921510A2 (de
Inventor
Joris Hubert Joseph VDO Car Com. Ned. B.V. Geurts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP19980122052 priority Critical patent/EP0921510B1/de
Publication of EP0921510A2 publication Critical patent/EP0921510A2/de
Publication of EP0921510A3 publication Critical patent/EP0921510A3/de
Application granted granted Critical
Publication of EP0921510B1 publication Critical patent/EP0921510B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/093—Data selection, e.g. prioritizing information, managing message queues, selecting the information to be output

Definitions

  • the invention relates to an apparatus for handling a broadcast traffic message, the apparatus comprising:
  • the invention further relates to an RDS TMC broadcast receiver comprising such apparatus.
  • the invention further relates to a navigation system comprising such an apparatus.
  • the invention further relates to a method of handling a traffic message comprising:
  • the known apparatus is employed for traffic messages in the Radio data System Traffic Message Channel RDS TMC.
  • traffic messages are digitally coded and broadcast in parallel with the audio program. Thereby, audio broadcast will not be interrupted by a traffic message.
  • the traffic message comprises standardized coded indications of a particular relevant event and of the associated location. Examples of such events are traffic jams and fog situations.
  • a message is decoded and presented to a user through audio or visible representation. Location codes may indicate a single position, a line connecting two positions, or an area enclosed by three or more positions.
  • RDS TMC a geographic region of interest is divided into predefined areas.
  • the known apparatus filters messages associated to one or more such areas indicated by a user.
  • indicating an area leads to passing of all messages with a location related to that area. If a user desires presentation of messages outside such area(s), one or more further such areas must be indicated.
  • the increased number of traffic messages then passed may comprise a substantial part that is not of interest to the user. This problem will be aggravated for the case of larger-sized areas.
  • This object is achieved according to the invention in that the apparatus is characterized by expansion means for expanding said first area to comprise a fraction of a second area among said set of areas that is less than all of said second area that was not otherwise in said first area, by an expansion factor in at least one geographical direction relative to the size of said first area in said at least one geographical direction.
  • the apparatus of the invention allows the definition of a new area of interest that is more according to the needs of the user. While in the known apparatus only complete pre-defined areas can be added to the first area, the new area according to the invention may be the first srea to which a relatively small extension has been added. This is for instance advantageous where the user travels along the border of the first area and is interested in traffic messages from just across that border in the adjacent area, but does not want to be presented all traffic messages from the adjacent area. Such traffic messages from just across the border can be of interest for various reasons:
  • the expansion of the first area into the second area results in the situation of partially overlapping areas. It is to be noted that this is different from the situation described in Figure 5 of the patent document DE 42 30 294 A 1, where the pre-defined areas overlap, simply because they have been defined that way.
  • the area as defined beforehand is taken as input and expanded by the apparatus to fulfil the specific needs of the user.
  • the apparatus of the invention may advantageously be used to expand such an area to an area that is more suitable to the user.
  • An embodiment of the apparatus according to the invention is defined in Claim 2. Expanding the first area in all directions is a simple task that comes down to enlarging an area with given co-ordinates by a certain factor.
  • An embodiment of the apparatus according to the invention is defined in Claim 3.
  • the user may specify the amount by which the first area is to be expanded. This gives the user the possibility to precisely define the second area, from which the traffic messages are to be presented.
  • An RDS TMC receiver is advantageously equipped with an apparatus according to the invention. The user of such a receiver is then able to precisely define the area from which traffic messages are to be presented.
  • a navigation system according to the invention is advantageously equipped with an apparatus according to the invention.
  • the navigation system guides a driver along a route from an origin to a destination, based on information from a local road database.
  • the received traffic message comprises information concerning the traffic conditions on the road that is more actual than the information in the local database.
  • the navigation system uses the information from the traffic message to inform the driver of events in realtion to the route and/or may investigate whether an alternative route is better than the current one in view of the received actual information.
  • This object is achieved by a method of the kind set forth hereabove, which according to the invention is being characterised by comprising the step of:
  • Figure 1 shows a geographical region divided into areas and comprising a number of roads.
  • the region 100 comprises a number of roads, for instance roads 102, 104 and 106, and a city 108.
  • the region has been partitioned into a number of areas, like areas 110, 112, 114, 116, 118, 120, 122 and 124.
  • each area is given a location code and a area is later referred to by and identified through its location code.
  • the data carrier of the apparatus according to the invention like the IC Card used in the RDS TMC receiver to decode the traffic message, may comprise the location codes of the defined areas and the geographical co-ordinates spanning the area.
  • a traffic message comprises an event and a location indicating the position where the event takes place.
  • the location is specified in the traffic message as a code and the data carrier contains the definition of this code.
  • the traffic message can be decoded and presented to the user in a directly interpretable format.
  • Based on the geographical co-ordinates of the location in the traffic message it can be determined to which area the particular message relates. This makes it possible to filter traffic messages based on area of interest to the driver. Then only traffic messages that relate to one or more indicated areas are passed on for processing and the other traffic messages are discarded. This reduces the number of traffic messages that are to be processed, e.g. to be presented to the driver of the car.
  • a traffic message has a location that corresponds to a single geographical position, it can easily be determined whether that traffic message relates to the area of interest by checking whether that position is inside that area.
  • a traffic message may relate to a location which is not a single position but which covers a certain part of the region. This can for instance be a weather report or bad travel conditions for such a part.
  • the test whether the traffic message relates to the area of interest is not a check whether a single position is inside that area but a check whether there is some overlap between the positions covered by the traffic message and the area of interest.
  • the apparatus according to the invention allows indicating an area of interest, which does not coincide with areas that have been defined in advance.
  • an area of interest 126 has been defined on the basis of previously defined area 120 with an extension 128 added to it.
  • the area 126 is created by expanding area 120 into the geographical direction 130, which may be North as defined by the map of region 100.
  • traffic messages that are just outside area 120 in direction 130 are still processed.
  • Figure 2 shows an example of an expansion of an area into all geographical directions.
  • the area of interest 202 is created by expanding area 120 into all 4 geographical directions, i.e. in directions 204, 206, 208 and 210. It is easy to enter into the apparatus according to the invention that such an expansion is desired. This may be indicated via a simple toggle switch.
  • the amount by which a pre-defined area is to be expanded can be a default value in the apparatus.
  • the value may also be manually entered or modified, enabling the driver to more precisely specify the area of interest. This may be implement as a selection from a list of possible values, whereby a next value is chosen by repeatedly pressing a button. However, it may also be implemented as entering a value through a numerical keypad.
  • FIG. 3 schematically shows the apparatus according to the invention.
  • the apparatus 300 comprises a receiver 302 for the reception of a traffic message.
  • the traffic message is passed on to a unit 304 for evaluation.
  • the unit 304 may be implemented according to the known computer architecture.
  • the unit 304 comprises a working memory 306 for storing software modules for carrying specific tasks.
  • Processor 308 is arranged to execute the instructions of the software modules loaded in the working memory 306.
  • the unit further comprises an interface 310 for communication with various peripheral devices and a bus 312 for the exchange of instructions and data between the various components.
  • the apparatus can access a storage device 314 comprising the definition of the codes for the events and locations in the traffic messages and for the pre-defined areas.
  • the storage device may be implemented as magnetic disk, optical disk, tape, IC Card or other suitable device.
  • the apparatus may optionally be arranged to access a display 316 to support the entering of commands or data by the user.
  • the apparatus further comprises a key arrangement 318 of keys for operating the apparatus. This includes an indication key 319 for indicating an area as being the area of interest, a key 320 for activating the expansion means and an input key 322 for entering the value of the expansion factor. Keys 320 and 322 may be integrated into a single key with multiple functions.
  • the key arrangement further comprises a pre-set key 324 for activating the filter operation of the apparatus with an earlier indicated area of interest that has been stored under the pre-set key.
  • an up-key 326 and a down-key 328 for scrolling through a list of choices displayed on display 316.
  • Figure 4 shows the indication of the area of interest from a list.
  • the selectable areas are displayed to the user as a list of entries.
  • the list 400 comprises 4 entries each corresponding to a respective area that can be indicated as area of interest.
  • Entry 402 corresponds to an area named "a1”
  • entry 404 corresponds to an area named "a2”
  • entry 406 corresponds to an area named "a3”
  • entry 408 corresponds to an area named "a4".
  • the user can move a marker 404 up and down the list by pressing the up-key 326 and the down-key 328 respectively.
  • the marker may be implemented in one of various ways. Examples are a transparent box around the relevant entry, an arrow point towards the entry and a highlight of the entry. A particular entry is selected by pressing key 319 when the marker is on that entry. The area that corresponds to the particular entry is then indicated as area of interest. In the example of Figure 4, pressing key 319 would make area "a2" the area of interest.
  • Figure 5 shows the indication of the area of interest when multiple databases are present.
  • a database comprises a certain geographical region for which the roads and locations are uniquely defined.
  • a data carrier may contain a plurality of databases, which are mutually independent and each covering a certain geographical region.
  • a number of areas can be defined which are selectable as area of interest for the purpose of filtering traffic messages.
  • the user In case of a data carrier comprising more than one database, the user must first indicate which database is to be used and subsequently may indicate an area of interest from that database.
  • the data carrier of the example comprises database "db1" with 3 selectable areas, database “db2" with 1 selectable area and database "db3" with 4 selectable areas.
  • a list with 3 database entries is displayed and the user can move a marker 502 along this list.
  • the database on which the marker currently resides is selected.
  • the selectable areas are displayed as a list of entries and an area of interest can be indicated in the way as described above for the example of Figure 4. If the user selects a database that has only one selectable area, in the example database "db2" with area "a21”, then the step of presenting a list of selectable areas is skipped and the one area is indicated as being the area of interest. If the datacarrier comprises only one database, then the step of presenting the selectable databases is skipped and the one database is directly selected. This eases the operation of the apparatus by the user, who then has a step less to perform.
  • FIG. 6 schematically shows an RDS TMC receiver according to the invention.
  • the RDS TMC receiver 600 comprises an apparatus 300 as described above.
  • the storage device 314 is an IC Card comprising the events and locations standardised according to RDS TMC.
  • a received traffic message is handled by apparatus 300.
  • a store 602. From here the message is presented to the user at a convenient time by a presentation unit 604.
  • the presentation may involve a visible message on display 316 and/or an acoustical message produced via speaker 606.
  • the store 602 and the presentation unit 604 may be integrated in the apparatus 300.
  • the store 602 can be implemented as a storage space in the working memory 306 and the presentation unit 604 can be implemented as a software module loaded into the working memory 306 for execution.
  • FIG. 7 schematically shows a navigation system according to the invention.
  • the navigation system 700 uses a map database stored on a data carrier 314.
  • the data carrier is a CD-ROM in order to be able to store the large amount of information and is accessed via a reader 702.
  • the navigation system has a planning module 704 for planning a route between an origin and a destination.
  • the route is planned in such a way that a certain criterion, for instance minimal travel time, is optimal.
  • the planning module plans on the basis of information in database.
  • the navigation system further comprises a guidance module 706 for giving guidance information to follow the planned route.
  • the guidance information may be given to the user as visual directions via a display 708 and as audible directions via speaker 710.
  • the display 708 is larger and of higher quality than the display 316 used in an RDS TMC, since display 708 must be able to display a map with roads and places including their names. However, the functionality of display 316 may be taken over by display 708.
  • the display 708 and the speaker 710 are accessed via interface 712.
  • the navigation further comprises apparatus 300 as described above.
  • the information concerning the codes of events and location is stored on the CD-ROM 314 which is accessed via reader 702.
  • a received traffic message has been handled by apparatus 300 and is to be processed, it is stored in store 714.
  • the navigation system uses the actual, dynamic information from the traffic message to complement the static information in the map database. It may be that the newly received information makes it necessary to use another route to the destination.
  • the pre-set key 324 of the apparatus 300 is used to store and activate respective filters for the traffic messages that are to be processed.
  • the user specifies the respective filters, e.g. by indicating the area of interest, and assigns this specification with a certain identification to the pre-set key.
  • the identification may be a number or a name under which the filter will be known to the user. In this way, a number of filters may be stored in the apparatus.
  • the user chooses one of the stored filters, e.g. by repeatedly pressing the pre-set key until the desired filter appears on the display 316 and then acknowledges that the chosen filter is to be activated, e.g. by pressing the indication key 319.
  • the filter may be defined as a single pre-defined area or as number of these pre-defined areas, e.g. for a corridor through which the user will drive. Since multiple database are allowed in the apparatus, the definition of the filter will comprise an identification of the database from which the indicated area had been selected. Furthermore, the filter may be based on one or more areas that are expanded according to the invention.
  • the traffic message originates from a so-called service provider.
  • the service-provider collects data about the traffic in a certain geographical region, e.g. a country, in one of various ways. Examples are: surveillance cameras along the roads, police reporting traffic queues, service cars and aeroplanes for watching traffic congestion.
  • the broadcast traffic message comprises an identification that indicates the service provider who is responsible for the contents of the message.
  • the apparatus 300 may be arranged to filter on the basis of the identity of the service provider. Then only traffic messages that originate from the indicated service provider will be passed on for processing, e.g. presented to the user.
  • This type of filtering may be executed in combination with the filtering based on an area or number of areas.
  • this type of filtering may be used for the pre-set filter stored and activated through the pre-set key. Such pre-set filter may also be based on the identity of the service provider in combination with an area of interest.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Navigation (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Traffic Control Systems (AREA)

Claims (10)

  1. Vorrichtung zur Behandlung einer rundgesendeten Verkehrsnachricht, umfassend:
    Angabemittel zum Angeben eines ersten Gebiets aus einer Menge von Gebieten,
    einen Empfänger zum Empfangen der Verkehrsnachricht, die ein Ereignis und einen Ort, den die Verkehrsnachricht betrifft, umfaßt,
    ein Filter zur Bestimmung, ob der Ort in dem ersten Gebiet liegt, und das bei einem Ja-Ergebnis die Verkehrsnachricht zur Verarbeitung für die anschließende Präsentation auf einer Benutzerschnittstelleneinrichtung weiterleitet,
    wobei die Vorrichtung durch folgendes gekennzeichnet ist: Erweiterungsmittel zum Erweitern des ersten Gebiets, so daß es einen Teil eines zweiten Gebiets aus der Menge von Gebieten umfaßt, der kleiner als der gesamte Teil des zweiten Gebiets ist, der sich ansonsten nicht in dem ersten Gebiet befand, um einen Erweiterungsfaktor in mindestens einer geographischen Richtung in bezug auf die Größe des ersten Gebiets in der mindestens einen geographischen Richtung.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Erweiterungsmittel so angeordnet sind, daß sie das erste Gebiet in alle geographischen Richtungen in die verschiedenen zweiten Gebiete erweitern.
  3. Vorrichtung nach Anspruch 1, gekennzeichnet durch Eingabemittel zur Benutzereingabe des Erweiterungsfaktors.
  4. Vorrichtung nach Anspruch 1, gekennzeichnet durch eine voreingestellte Taste, die in einem ersten Modus einem Benutzer ermöglicht, das erste Gebiet der voreingestellten Taste zuzuweisen, und in einem zweiten Modus, das Filter für das so zugewiesene erste Gebiet zu aktivieren.
  5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Verkehrsnachricht von einem Dienstanbieter erzeugt wurde und eine Identifikation des Dienstanbieters umfaßt, und wobei das Filter weiterhin so angeordnet ist, daß es die Dienstanbieteridentifikation mit einer vom Benutzer definierten Anbieteridentifikation vergleicht, und
    wobei das Weiterleiten von einem positiven Ergebnis des Vergleichs abhängig ist.
  6. Vorrichtung nach Anspruch 1, gekennzeichnet durch eine Liste von Einträgen entsprechend jeweiligen vordefinierten Gebieten, und wobei die Angabemittel Rollmittel zum Rollen durch die Liste von Einträgen und zum Auswählen eines aktuellen Eintrags aus diesen entsprechend dem gewünschten ersten Gebiet umfassen.
  7. Vorrichtung nach Anspruch 1, gekennzeichnet durch mehrere Datenbanken jeweils mit einer Anzahl von Einträgen für jeweilige erste Gebiete, wobei die Vorrichtung für eine Benutzerauswahl unter den Datenbanken ausgelegt ist, und weiterhin, wenn die gewählte Datenbank mehrere Einträge umfaßt, für eine sekundäre Benutzerauswahl eines bestimmten Eintrags, um das gewünschte erste Gebiet anzugeben, und wenn die gewählte Datenbank nur einen einzigen Eintrag umfaßt, zum Angeben des einzigen Eintrags als dem gewünschten ersten Gebiet entsprechend.
  8. RDS-TMC-Empfänger mit einer Vorrichtung nach einem der Ansprüche 1 bis 7.
  9. Navigationssystem mit einer Vorrichtung nach einem der Ansprüche 1 bis 7.
  10. Verfahren zum Behandeln einer Verkehrsnachricht, umfassend:
    einen Angabeschritt zum Angeben eines ersten Gebiets aus einer Menge von Gebieten,
    einen Empfangsschritt zum Empfangen der Verkehrsnachricht, die ein Ereignis und einen Ort, den die Verkehrsnachricht betrifft, umfaßt,
    einen Filterschritt zum Bestimmen, ob sich der Ort in dem ersten Gebiet befindet, und im Ja-Fall zum Weiterleiten der Verkehrsnachricht zum Verarbeiten zur nachfolgenden Präsentation auf einer Benutzerschnittstelleneinrichtung,
    wobei das Verfahren durch den folgenden Schritt gekennzeichnet ist: Erweitern des ersten Gebiets, so daß es einen Teil eines zweiten Gebiets aus der Menge von Gebieten umfaßt, der kleiner als der gesamte Teil des zweiten Gebiets ist, der sich ansonsten nicht in dem ersten Gebiet befand, um einen Erweiterungsfaktor in mindestens einer geographischen Richtung in bezug auf die Größe des ersten Gebiets in der mindestens einen geographischen Richtung.
EP19980122052 1997-12-02 1998-11-20 Gerät zur Verarbeitung einer Verkehrsmeldung Expired - Lifetime EP0921510B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19980122052 EP0921510B1 (de) 1997-12-02 1998-11-20 Gerät zur Verarbeitung einer Verkehrsmeldung

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97203773 1997-12-02
EP97203773 1997-12-02
EP19980122052 EP0921510B1 (de) 1997-12-02 1998-11-20 Gerät zur Verarbeitung einer Verkehrsmeldung

Publications (3)

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EP0921510A2 EP0921510A2 (de) 1999-06-09
EP0921510A3 EP0921510A3 (de) 2000-07-19
EP0921510B1 true EP0921510B1 (de) 2003-08-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7583186B2 (en) 2004-04-29 2009-09-01 Bayerische Motoren Werke Aktiengesellschaft Utilization-dependent data representation in a motor vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101147771B1 (ko) * 2006-09-25 2012-05-25 엘지전자 주식회사 교통정보를 수신하는 방법 및 단말기 그리고 제공하는 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554618A1 (fr) * 1983-11-04 1985-05-10 Thomson Brandt Procede et systeme pour la communication d'informations relatives a la circulation routiere
US5911773A (en) * 1995-07-24 1999-06-15 Aisin Aw Co., Ltd. Navigation system for vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7583186B2 (en) 2004-04-29 2009-09-01 Bayerische Motoren Werke Aktiengesellschaft Utilization-dependent data representation in a motor vehicle

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Publication number Publication date
EP0921510A3 (de) 2000-07-19
EP0921510A2 (de) 1999-06-09

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