EP0900432B1 - Verfahren und empfänger zur geographischen selektion von digital codierten meldungen - Google Patents
Verfahren und empfänger zur geographischen selektion von digital codierten meldungen Download PDFInfo
- Publication number
- EP0900432B1 EP0900432B1 EP98912263A EP98912263A EP0900432B1 EP 0900432 B1 EP0900432 B1 EP 0900432B1 EP 98912263 A EP98912263 A EP 98912263A EP 98912263 A EP98912263 A EP 98912263A EP 0900432 B1 EP0900432 B1 EP 0900432B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- selection information
- information
- selection
- messages
- receiver
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/49—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations
- H04H60/51—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of receiving stations
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/091—Traffic information broadcasting
- G08G1/092—Coding or decoding of the information
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/091—Traffic information broadcasting
- G08G1/093—Data selection, e.g. prioritizing information, managing message queues, selecting the information to be output
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/55—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for traffic information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
- H04H2201/13—Aspects of broadcast communication characterised by the type of broadcast system radio data system/radio broadcast data system [RDS/RBDS]
Definitions
- the invention relates to a method for geographic Selection of digitally coded messages by several Stations are broadcast and contain location information, which in receivers with the respective position of the Comparison of recipient-dependent selection information be, and a receiver with a facility for Selection of digitally coded messages.
- RDS radio data system
- Specifications of the radio data system for FM radio are among others in the publication Tech. 3244-E, March 1984 of the European Runfunk Union (EBU).
- Radio receivers with suitable RDS decoders can transmitted data in addition to audio reception with the Record and decode the same receiver.
- TMC Transmission Control Protocol
- a position-based selection is advantageous however requires knowledge of the position of the recipient, so the vehicle.
- the position can be set manually via area and Route codes can be entered directly, which is longer Journeys but is too inflexible and cumbersome.
- a Coupling of the RDS / TMC receiver with a navigation system - for example GPS - requires additional technical Effort and therefore more costs.
- the object of the present invention is a position-based selection without additional operating effort and with as little technical effort as possible enable.
- this task solved in that the transmitter also their respective Selection information characterizing the send area broadcast in the receiver with in the messages contained location information can be compared.
- the inventive method uses only that for Decoding of the messages already present in the receiver Data. The accuracy achieved is less than that with a navigation system, for the selection of Messages, however, quite high enough. A change of Frequency or one or the program information codes several transmitters is for the inventive method irrelevant as long as those emitted by the transmitter Selection information is retained.
- the method is particularly advantageous with such Applicable, which automatically search for stations and according to reception conditions on the strongest station the desired program. It can inventive method also in so-called A tuner devices can be applied since none Perform field strength measurements on other frequencies are.
- the result is as further advantage that when receiving several TMC transmitters a selection of the service based on the Selection information, especially the area codes, can be carried out.
- a selection of the service based on the Selection information especially the area codes.
- the procedure is also not up certain RDS details depend on and may be on others Transmission media, e.g. DAB, AMDS.
- the method provides that the selection information Location codes from for coding and decoding the Messages are defined areas that are at least partially fall within the coverage area. These location codes - in also called area codes - can be sent by the recipient can be used directly as a selection criterion, since all for the coding and decoding of the messages Locations are referenced to such area codes. That is: only those messages pass the filter, their primary or secondary location itself within the by the Area code defined area is located.
- a second embodiment of the method according to the invention is that the selection information coordinates and radii of the transmission ranges.
- the radius is here simplifying the range of the respective transmitter.
- this selection information is to be used in the recipient the location coordinates for each location code in the location list save. As this is also a requirement for a graphic Representing the traffic situation, such data is often already included in the list of locations and can for The inventive method can also be used.
- the selection information and Reference information for the selection information in System messages one of the digitally coded messages contained data stream are transmitted.
- TMC signal according to ALERTC contains four system messages, which are determined by the first two bits of block C be distinguished.
- the first of these variants with the Code 00 can be used for this training for transmission the selection information is used.
- a Identification that selection information is transferred be the number one for decoding the messages in the Required location list and information about recipients the type of selection information.
- the transfer of coordinates and radii is also possible be in an advantageous embodiment of this Training provided that in the first data block further information about the type of selection information is transmitted by a bit that indicates whether the Selection information from location codes of areas or Coordinates and radii exist.
- in the first Data block is also transmitted how many location codes from Areas to follow. This can be done in at least one other Data block a location code of an area are transmitted.
- Selection information can be the further training of the inventive method be designed such that in first data block the radius and in another Data block the coordinates are transmitted.
- the object of the invention is achieved that the receiver also has a device for receiving Selection information that is broadcast by stations and mark the transmission range of the respective transmitter, and a facility for comparing the Selection information with the information contained in the messages Has location information.
- the receiver according to the invention can reduce the size of the selection area be that when receiving multiple channels with it overlapping selection information the intersection the selection information received for selection is used.
- the receiver shown in Fig. 1 has in itself known manner an antenna 1, a receiving part 2, a Stereo decoder 4, a NF amplifier 5 as well Power amplifiers 6, 7 and speakers 8, 9. That from the stereo multiplex signal delivered to the receiving part 2 in addition to the stereo decoder 4 fed to an RDS decoder 3, the output of which is connected to a microcomputer 13.
- the Microcomputer 13 is used in addition to the control of the receiver for decoding, management, preparation for playback and selection of the TMC messages.
- a keyboard 14 and a display device (display) 15 connected to the microcomputer 13 a keyboard 14 and a display device (display) 15 connected.
- the output of the selected TMC messages can either be via the display 15 or as a voice output take place, for which the microcomputer 13 via a Speech synthesizer 16 with an input 10 of the LF amplifier 5 is connected.
- Figures 2a and 2b each show system messages two blocks C and D according to the TMC specifications, at which have the first two bits set to 00, which is the case with the embodiment should mean that this System messages for the transmission of the Selection information can be used. To do this, first of all available in block C 30 bits. The 6th after 00 Bits represent a location table number LTN (Location list number), since according to TMC specifications different place lists are possible and that The method according to the invention takes this into account.
- LTN Location table number
- Fig. 3 shows schematically the travel of a vehicle from a point A to a point B.
- the vehicle comes within range of the transmitters x, y, z and drives through the areas G1 to G7. That comes after the start of the journey Vehicle first in the range of transmitter x.
- Whose The transmission range is defined by the area codes G1 to G6 covered so that all messages from this area be selected.
- the receiver switches on the now more receivable transmitter y. This gives the Areas G2, G3, G5 and G6 as transmission areas.
- the vehicle leaves the area of the transmitter y, but now finds the transmitter z. Although this is weaker to receive than the transmitter x, chooses Receiver this transmitter because the destination point E in area 7 lies and only the transmitter z references this area. The After that, selection only takes into account the messages the areas G3 and G4, which is the intersection of those of the Transmitters x and z corresponds to the specified areas. From point D additional messages from the target area are selected, since the transmitter x is no longer receivable and therefore the Intersection is not necessary.
- FIG. 4 shows a flow chart for evaluating received selection information, also in the following Selection codes are called.
- an 8A group from the Communication unit picked up and decoded. Done at 23 a branch depending on whether it is a Group selection codes SC. Isn't that the If there is a normal TMC message, it will decoded at 24 and at 25 after the current one in Selection table in memory selected. This Selection table is based on previously received selection codes emerged.
- program part 22 picked up an 8A group from the communication unit and decoded and then checked again at 23 whether it is is a group of selection codes SC. If so, it is checked at 28 whether the bit CID (FIG. 2) is 0 or 1 is set. If the bit CID is 0, they contain Selection codes location codes with which the 29 Selection table is updated. Become 1 at CID in the same 8A group coordinates as selection codes received so that at 31 the selection table with the received coordinates is updated.
- the program becomes dependent on 32 branches off whether the reporting stock M is 0. is if this is not the case, there are still messages in the memory at 25, the selection is updated with the updated one Selection table carried out. Is no longer a message branch 26 follows.
- FIG. 5 shows a flow chart for the selection of messages based on received selection codes.
- an error corrected and verified 8A group called at 42.
- the program at 43 depending on whether a selection is active is, that is, whether a user set a selection Has. If this is not the case, the message - like any other others too - marked as selected at 44. After that the program ends at 45. However, is with the If branch 43 has the selection active, it is checked at 46 whether the selection table contains coordinates. Isn't this the case, it is then checked at 47 whether the Selection table contains area codes AC. Is this the Case, it is checked at 48 whether the in each case processed message contained location code LC on area codes AC is referenced. If this is the case, the will be at 44 Message marked as selected. Isn't that the Case, the message is not selected at 49 characterized.
- the selection table Contains coordinates, at 50 those for each Coordinates of location LC belonging to COORD determined. Then at 51 the program becomes dependent on it branches whether the location L is outside the area A, the by the coordinates contained in the selection table is defined. If the place is not outside of this area, the program continues at 47. However, the place is outside the area, at 49 the message is considered not selected marked.
Abstract
Description
- Fig. 1
- ein Blockschaltbild eines erfindungsgemäßen Empfängers,
- Fig. 2
- schematische Darstellung von Datenblöcken, welche Selektionsinformationen enthalten,
- Fig. 3
- die schematische Darstellung der Fahrt eines Fahrzeugs durch mehrere Sendegebiete und TMC-Gebiete,
- Fig. 4
- ein Ablaufdiagramm zur Auswertung von empfangenen Selektionsinformationen und
- Fig. 5
- ein Ablaufdiagramm zur Selektion von Meldungen basierend auf empfangenen Selektionsinformationen.
Claims (12)
- Verfahren zur geografischen Selektion von digital codierten Meldungen, die von mehreren Sendern ausgestrahlt werden und Ortsinformationen enthalten, die in Empfängern mit von der jeweiligen Position der Empfänger abhängigen Selektionsinformationen verglichen werden, dadurch gekennzeichnet, daß die Sender ferner ihren jeweiligen Sendebereich kennzeichnende Selektionsinformationen ausstrahlen, die im Empfänger mit in den Meldungen enthaltenen Ortsinformationen verglichen werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Selektionsinformationen Ortscodes von für die Codierung und Decodierung der Meldungen festgelegten Gebieten sind, die mindestens teilweise in den Sendebereich fallen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Selektionsinformationen Koordinaten und Radien der Sendebereiche sind.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jeweils von einer Gruppe von Sendern gleiche Selektionsinformationen ausgestrahlt werden.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Selektionsinformationen und Referenzinformationen zu den Selektionsinformationen in Systemmeldungen eines die digital codierten Meldungen enthaltenen Datenstroms übertragen werden.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß in einem ersten Datenblock folgende Informationen übertragen werden: eine Kennzeichnung, daß Selektionsinformationen übertragen werden, die Nummer einer zur Decodierung der Meldungen im Empfänger erforderlichen Ortsliste und Informationen über die Art der Selektionsinformationen.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß im ersten Datenblock ferner die Information über die Art der Selektionsinformationen durch ein Bit übertragen wird, das besagt, ob die Selektionsinformationen aus Ortscodes von Gebieten oder Koordinaten und Radien bestehen.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß in dem ersten Datenblock ferner übertragen wird, wie viele Ortscodes von Gebieten folgen.
- Verfahren nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß in mindestens einem weiteren Datenblock ein Ortscode eines Gebiets übertragen wird.
- Verfahren nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß im ersten Datenblock der Radius und in einem weiteren Datenblock die Koordinaten übertragen werden.
- Empfänger mit einer Einrichtung zur Selektion von digital codierten Meldungen, die von mehreren Sendern ausgestrahlt werden, Ortsinformationen enthalten und im Empfänger nach von der jeweiligen Position des Empfängers abhängigen Selektionsinformationen selektiert werden, dadurch gekennzeichnet, daß der Empfänger ferner eine Einrichtung zum Empfang von Selektionsinformationen, die von Sendern ausgestrahlt werden und den Sendebereich des jeweiligen Senders kennzeichnen, und eine Einrichtung zum Vergleich der Selektionsinformationen mit den in den Meldungen enthaltenen Ortsinformationen aufweist.
- Empfänger nach Anspruch 11, dadurch gekennzeichnet, daß beim Empfang von mehreren Sendern mit sich überschneidenden Selektionsinformationen die Schnittmenge der empfangenen Selektionsinformationen zur Selektion verwendet wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19710863A DE19710863A1 (de) | 1997-03-15 | 1997-03-15 | Verfahren und Empfänger zur geographischen Selektion von digital codierten Meldungen |
DE19710863 | 1997-03-15 | ||
PCT/DE1998/000473 WO1998041959A1 (de) | 1997-03-15 | 1998-02-18 | Verfahren und empfänger zur geographischen selektion von digital codierten meldungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0900432A1 EP0900432A1 (de) | 1999-03-10 |
EP0900432B1 true EP0900432B1 (de) | 2003-09-03 |
Family
ID=7823538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98912263A Expired - Lifetime EP0900432B1 (de) | 1997-03-15 | 1998-02-18 | Verfahren und empfänger zur geographischen selektion von digital codierten meldungen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0900432B1 (de) |
JP (1) | JP2000510987A (de) |
DE (2) | DE19710863A1 (de) |
WO (1) | WO1998041959A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19930780A1 (de) * | 1999-07-03 | 2001-01-18 | Bosch Gmbh Robert | Verfahren zum Empfang von digitalen Signalen über ein Funknetz und Empfangsvorrichtung für über Funkkanäle übertragene digitale Signale |
DE10015935A1 (de) * | 2000-03-30 | 2001-10-04 | Bosch Gmbh Robert | Verfahren zur Übertragung einer Position einer Verkehrsinformation, insbesondere einer Verkehrsstörung |
DE10015765A1 (de) * | 2000-03-30 | 2001-10-04 | Mannesmann Vdo Ag | Verfahren zur Auswahl eines Rundfunksenders für dynamische Fahrzeugnavigation |
KR20060119746A (ko) | 2005-05-18 | 2006-11-24 | 엘지전자 주식회사 | 교통상태에 대한 정보를 제공하고 이를 이용하는 방법 및장치 |
KR20060119742A (ko) * | 2005-05-18 | 2006-11-24 | 엘지전자 주식회사 | 도로 정보를 제공하고 이를 이용하는 방법 및 장치 |
KR101061460B1 (ko) | 2005-05-18 | 2011-09-02 | 엘지전자 주식회사 | 소통상태에 대한 예측정보를 제공하고 이를 이용하는 방법및 장치 |
JP5230652B2 (ja) | 2007-01-10 | 2013-07-10 | トムトム インターナショナル ベスローテン フエンノートシャップ | 交通遅滞を示す方法、コンピュータプログラムおよびナビゲーションシステム |
AU2007343392A1 (en) * | 2007-01-10 | 2008-07-17 | Tomtom International B.V. | Improved search function for portable navigation device |
DE102007013561A1 (de) * | 2007-03-21 | 2008-09-25 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Betreiben eines Navigationssystems |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3926180A1 (de) * | 1989-08-08 | 1991-02-14 | Bosch Gmbh Robert | Verfahren zur fahrtroutenselektiven wiedergabe digital codierter, von einem sender zu einem fahrzeugempfaenger uebertragener verkehrsnachrichten sowie fahrzeugempfaenger |
NL9000533A (nl) * | 1990-03-07 | 1991-10-01 | Philips Nv | Werkwijze voor de overdracht van radio-data-systeemsignalen met verkeersprogramma-identificatie en ontvanger voor dergelijke radio-data-systeemsignalen. |
FR2689667B1 (fr) * | 1992-04-01 | 1995-10-20 | Sagem | Recepteur de bord d'aide a la navigation d'un vehicule automobile. |
DE4230294A1 (de) * | 1992-09-10 | 1994-03-17 | Bosch Gmbh Robert | Verfahren zur Auswahl routenrelevante Meldungen bei RDS Radios |
DE4445582C2 (de) * | 1994-12-20 | 2002-05-29 | Deutsche Automobilgesellsch | Verfahren und Einrichtung zur Ausgabe von Verkehrsstörungsmeldungen in einem Fahrzeug |
-
1997
- 1997-03-15 DE DE19710863A patent/DE19710863A1/de not_active Ceased
-
1998
- 1998-02-18 DE DE59809470T patent/DE59809470D1/de not_active Expired - Lifetime
- 1998-02-18 EP EP98912263A patent/EP0900432B1/de not_active Expired - Lifetime
- 1998-02-18 WO PCT/DE1998/000473 patent/WO1998041959A1/de active IP Right Grant
- 1998-02-18 JP JP10540003A patent/JP2000510987A/ja not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
DE59809470D1 (de) | 2003-10-09 |
DE19710863A1 (de) | 1998-09-17 |
EP0900432A1 (de) | 1999-03-10 |
WO1998041959A1 (de) | 1998-09-24 |
JP2000510987A (ja) | 2000-08-22 |
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