EP1460599A2 - Base de données pour codage et décodage des messages de trafic et procédé pour transmettre des messages de trafic codés - Google Patents

Base de données pour codage et décodage des messages de trafic et procédé pour transmettre des messages de trafic codés Download PDF

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Publication number
EP1460599A2
EP1460599A2 EP03104281A EP03104281A EP1460599A2 EP 1460599 A2 EP1460599 A2 EP 1460599A2 EP 03104281 A EP03104281 A EP 03104281A EP 03104281 A EP03104281 A EP 03104281A EP 1460599 A2 EP1460599 A2 EP 1460599A2
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EP
European Patent Office
Prior art keywords
location
traffic
assigned
codes
location code
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03104281A
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German (de)
English (en)
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EP1460599B1 (fr
EP1460599A3 (fr
Inventor
Ralf Duckeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of EP1460599A3 publication Critical patent/EP1460599A3/fr
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Publication of EP1460599B1 publication Critical patent/EP1460599B1/fr
Anticipated expiration legal-status Critical
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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
    • G08G1/092—Coding or decoding of the information
    • 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
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
    • 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 is based on a database and a method for transmitting traffic reports according to the type of the independent claims.
  • radio data system digitally coded information is transmitted via VHF (ultra-short wave) FM radio, which on the one hand enables automatic tuning of radio receivers designed to receive and evaluate RDS information, and on the other hand the information serve the user (DIN / EN 50067).
  • VHF ultra-short wave
  • FM radio radio-short wave
  • the latter include digitally coded traffic reports transmitted according to the so-called TMC (Traffic Message Channel) standard (ISO 14819-1, -2, -3), which can also be taken into account when calculating a route in the case of current radio receiver / navigation system combinations.
  • TMC Traffic Message Channel
  • TMC traffic reports contain at least event or "event” codes associated with traffic events, as well as location or “location” codes, which are assigned to locations within a traffic route network and / or geographical locations.
  • a database containing such an assignment is required for the transmitter-side coding of an event location, that is to say for converting an event location into a location code.
  • a database is used for decoding the transmitted location code on the receiver side, that is to say for assigning a location, and in addition if the message is output to the user, a location name required, which in turn enables the same assignment of places and possibly place names to place codes.
  • Such a database is the "location code list" used, for example, by the broadcasters to generate TMC traffic reports, and also by the receivers to decode received TMC traffic reports.
  • the current location code list mainly encodes locations on motorways and federal highways, and to a very limited extent on other, traffic-relevant roads. Coding on highways is relatively simple, as only simple locations such as B. exits, motorway junctions, rest areas, tunnels, bridges and the like must be coded. Federal roads are usually very roughly coded, e.g. B. only between places or centers. Other roads are usually only coded as a whole element, i.e. without any subdivision. Coded locations are usually not present within closed towns or only very roughly coded, i. H. For example, groups of intersection areas are combined as so-called "poles".
  • a database according to the invention with the features of independent patent claim 1 and a method according to the invention for transmitting digitally coded traffic reports with the features of independent method claim advantageously enable detection of inner-city locations using location codes or "locations" in the location code list within the existing one RDS-TMC system.
  • the invention consequently enables coding of exact locations within an inner-city or inner-city road network without changes to the existing system, in particular the address space available for addressing the referenced locations, or costly new developments being necessary.
  • location codes are or are assigned, which represent intersections or junctions, to which at least three thoroughfare sections or road sections with a passage character connect.
  • a location to be coded which according to the above is located on at least two thoroughfares, is assigned its own location code for at least part of the thoroughfares adjoining the location.
  • the location codes are assigned references to the location code preceding and following in the course of the road, provided that such location codes are available.
  • each location within an inner-city road network that is to be coded is assigned as many location codes as through streets or streets with a passage character connect to this junction or intersection. This advantageously enables the localization of a traffic disruption in the known manner solely on the basis of a location code and a direction of travel.
  • the at least two location codes describing a single location are assigned references to the other location code (s) that describe the same location. This enables the location database to be used for simple route calculation in a vehicle navigation system.
  • the receiver 200 shown in FIG. 1 for receiving digitally coded traffic reports comprises a radio receiver 210 known per se.
  • the radio receiver 210 is for receiving VHF (ultra short wave) FM radio broadcasting trained.
  • VHF-FM broadcasting in the context of the RDS system, in addition to the actual radio program, digital information is transmitted, which contains, among other things, digitally coded traffic reports.
  • TMC digitally encoded traffic announcements contained in the received broadcast signal are fed to a traffic announcement decoder 220.
  • An output device 230 is connected to the output of the traffic report decoder, via which the traffic reports decoded from the received traffic report signals are output for the information of the user.
  • the output device advantageously includes means for the optical and / or acoustic output of the traffic reports in a format that is easy for the user to understand, preferably as a spoken or written message.
  • the decoder uses a database 240 in which at least all location codes, but preferably also event codes, that are potentially contained in the traffic announcement codes are stored.
  • the database is preferably structured such that these are stored as addresses in at least one table, while at least locations are stored in the memory fields of the at least one table assigned to the addresses.
  • the associated memory field can be addressed within the database 240 and its content, that is to say the location assigned to the location code, can be read out.
  • Further information such as place names and / or further information describing the places, such as, in particular, place coordinates, are preferably stored in the database 240 associated with the places.
  • the location name obtained by the decoding described from the received location code is either in the form of a font on a display of the device or in spoken form using one contained in the output device 230 Speech output device that converts the place name into speech information can be output.
  • the database comprises at least one further assignment table, which is analogously designed to the location table, in which all possible event codes contained in a digitally coded traffic report include events, in particular traffic events, such as "traffic jam", “slow-moving traffic” etc., as mentioned in the introduction ISO standards are provided, are assigned.
  • the place name or information representing the place name obtained by decoding 220 from the received traffic announcement codes in particular position coordinates describing the position of the place, can be forwarded to a vehicle navigation system 250.
  • a vehicle navigation system 250 can be forwarded to the events derived from the event codes or information representing them.
  • the navigation system 250 takes into account the decoded traffic report signals when calculating a route from a start to a destination in the form of increased resistances for the sections of the route affected by traffic disruptions.
  • an increased passage resistance can be assigned to a freeway section blocked by a traffic jam, so that the optimization algorithm on which the route calculation is based, for example according to Ford-Moore, calculates a route bypassing the affected freeway section, provided that the route including the bypass has a lower total resistance , as a route including the blocked section of the motorway.
  • FIG. 3 An extract of a decoding table contained in the database 250 is shown in FIG. 3.
  • the entries in column S1 represent the actual "location codes” or location codes.
  • these are assigned specific locations within the traffic route network, here the road network.
  • the location code of the preceding and the following encoded location on the same street is assigned to each location code or to each location coded by means of the location code, provided that such predecessor or successor locations exist at all.
  • the receiver after receiving a location code and a direction code in the form of a direction bit, can locate an event on a section of a road that lies between the location represented by the location code and a coded location adjacent in the specified direction of travel ,
  • the location code 12048 in conjunction with a positive direction of travel would mark the motorway section of the "A620" motorway between the motorway junctions 12048, ie "Waller skillet” and 12049, as "Saarlouis-Mitte".
  • the location codes are each assigned street numbers which indicate which street the location code is to be assigned to.
  • the location codes 12048 and 12049 mentioned in the example above are, for example, assigned to junctions on the "A620" motorway.
  • different location codes can also be assigned to the same location. This is the case, for example, in the case of the "Saarlouis motorway triangle” to which the location code 12047 for the "A620" motorway and the other location code 12485 for the "A8" motorway are assigned.
  • the purpose of this multiple assignment results from the requirement that a route section should be uniquely identifiable by a location code and the direction of travel bit. If, for example, the "Autobahn triangle Saarlouis" only had a single location code, the location code and the direction of travel would not allow the event to be clearly assigned to a street, namely either "A8" or "A620", and thus it would not be possible to clearly assign a route section.
  • each location code or each coded location in columns S2 and S3 is assigned an identifier for the type and subtype of the coded location, such as a motorway junction, motorway service area, tunnel, etc.
  • each location code is also assigned a geographical area in which the coded location is located. For example, for location code 12048, that is, the motorway junction "Waller skillet”, reference is made to the district "Saarlouis" corresponding to location code 640, which in turn is assigned to location code 265, that is, the federal state "Saarland”.
  • punctiform coded locations such as in particular motorway junctions, but also rest areas, petrol stations, etc.
  • locations are assigned a road segment which encompasses these coded locations or route segments.
  • location codes 12047 corresponding to "Autobahn triangle” Saarlouis "to 12072 corresponding to” Autobahn triangle Saarmaschinen "
  • this is the road segment with location code 7172, ie the section" Saarlouis - Saarmaschinen "of the Autobahn” A620 ".
  • a column is assigned to the location codes in column S10, which indicates whether the location represented by the location code is a location within a town or city.
  • column S11 there is a reference to a crossing road in each case to the location codes, provided that such a road exists at all and this is also detected by location codes.
  • location 12047 for "A620 - Autobahn triangle Saarlouis” reference is made, for example, to location 12485 for "A8 - Autobahn triangle Saarlouis”.
  • this database ie the existing location code list, is expanded to include locations within closed towns or cities. Due to the maximum number of possible location codes limited by the specifications of the ISO standards mentioned at the outset, a meaningful selection of locations to be coded must be made. According to the invention, this selection is based on a selection scheme which provides that within a traffic network within locations only location codes are or are assigned, which represent intersections or junctions to which at least three thoroughfare sections connect. In other words, at least one confluence must be a thoroughfare onto another through thoroughfare.
  • the road network 100 connects to the points 10 mentioned in connection with FIG. 3, corresponding to "Waller among motorway junction” and 11 corresponding to “Saarlouis-Mitte motorway junction” and comprises further traffic junctions, i.e. junctions 12, 13, 14, 17, 18 and 19 and intersections 15 and 16. Intersections are to be understood as nodes that are connected to at least four road sections.
  • a cross reference to the location code of the same node on at least one other adjacent thoroughfare is preferably assigned to all the location codes assigned.
  • the new location code 216 is assigned a cross reference to location code 316, this a cross reference to location code 516 and this in turn a cross reference to location code 216.
  • a cross reference to a new location code added according to the invention is also assigned to existing location codes.
  • the existing location 12048 (Saarlouis Waller Chemetic) assigned a cross reference to the new location 510 and vice versa.
  • a radio transmitter or a service provider supplying a radio transmitter also requires a database corresponding to the database 240 described above, in which the relevant location codes and further references and assignments are assigned to potential event locations.
  • a database described thus enables a method for the transmission of digitally coded traffic reports, the traffic reports comprising at least one traffic event and a location of the event, the event location being transmitted in coded form as a location code, which in a receiver is a location in a traffic route network and / or can be assigned to a geographical location, which is characterized in that within a traffic network 100 within locations only location codes 111 etc. are assigned to locations, which represent intersections or junctions, to which at least three thoroughfare sections, for example sections of streets "1", Connect "3", "A620".
  • Event on street "1" (since 111 is assigned to street 1 and the location code list in column S4 refers to street number "1" and in column S7 to street segment of street 1) between location 111 and the next location in the ascending direction (since positive Direction of travel), i.e. 113 or 114 according to the first or second embodiment.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Navigation (AREA)
  • Mobile Radio Communication Systems (AREA)
EP03104281A 2003-03-18 2003-11-19 Base de données pour codage et décodage des messages de trafic et procédé pour transmettre des messages de trafic codés Expired - Lifetime EP1460599B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10312024 2003-03-18
DE10312024A DE10312024A1 (de) 2003-03-18 2003-03-18 Datenbasis zur Codierung oder Decodierung von Verkehrsmeldungen und Verfahren zur Übertragung codierter Verkehrsmeldungen

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EP1460599A2 true EP1460599A2 (fr) 2004-09-22
EP1460599A3 EP1460599A3 (fr) 2004-10-27
EP1460599B1 EP1460599B1 (fr) 2006-01-11

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007045611A2 (fr) * 2005-10-21 2007-04-26 Robert Bosch Gmbh Procede de codage de perturbations du trafic routier et de calcul d'un itineraire
WO2007073996A1 (fr) * 2005-12-22 2007-07-05 Robert Bosch Gmbh Procede de codage de messages, procede de decodage de messages et recepteur pour recevoir et interpreter des messages
EP1886295A1 (fr) * 2005-05-18 2008-02-13 Lg Electronics Inc. Fourniture d'informations routieres comprenant des donnees de noeuds destinees a une liaison et utilisation de celle-ci
US7729335B2 (en) 2005-05-18 2010-06-01 Lg Electronics Inc. Providing traffic information relating to a prediction of congestion status and using the same
US7907590B2 (en) 2005-05-18 2011-03-15 Lg Electronics Inc. Providing information relating to traffic congestion tendency and using the same
US7940742B2 (en) 2005-05-18 2011-05-10 Lg Electronics Inc. Method and device for providing traffic information including a prediction of travel time to traverse a link and using the same
US7940741B2 (en) 2005-05-18 2011-05-10 Lg Electronics Inc. Providing traffic information relating to a prediction of speed on a link and using the same
USRE47239E1 (en) 2005-05-18 2019-02-12 Lg Electronics Inc. Method and apparatus for providing transportation status information and using it

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101061460B1 (ko) 2005-05-18 2011-09-02 엘지전자 주식회사 소통상태에 대한 예측정보를 제공하고 이를 이용하는 방법및 장치
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
KR101254219B1 (ko) 2006-01-19 2013-04-23 엘지전자 주식회사 링크 식별 방법 및 링크 식별 장치
CN108122185B (zh) * 2017-12-19 2021-10-08 杭州电子科技大学 考虑布控区域边界点的移动污染源排放遥测站点选址方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0930736A2 (fr) * 1998-01-14 1999-07-21 Robert Bosch Gmbh Dispositif pour la réception de messages numériques codés et liste de localités pour le décodage de messages numériques codés
WO2001018769A1 (fr) * 1999-09-07 2001-03-15 Robert Bosch Gmbh Procede de codage et de decodage d'objets dans un reseau de voies de circulation
EP1150265A2 (fr) * 2000-03-30 2001-10-31 Robert Bosch Gmbh Procédé pour transmettre la position des informations routières, en particulier des difficultées routières

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0930736A2 (fr) * 1998-01-14 1999-07-21 Robert Bosch Gmbh Dispositif pour la réception de messages numériques codés et liste de localités pour le décodage de messages numériques codés
WO2001018769A1 (fr) * 1999-09-07 2001-03-15 Robert Bosch Gmbh Procede de codage et de decodage d'objets dans un reseau de voies de circulation
EP1150265A2 (fr) * 2000-03-30 2001-10-31 Robert Bosch Gmbh Procédé pour transmettre la position des informations routières, en particulier des difficultées routières

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7907590B2 (en) 2005-05-18 2011-03-15 Lg Electronics Inc. Providing information relating to traffic congestion tendency and using the same
EP1886295A1 (fr) * 2005-05-18 2008-02-13 Lg Electronics Inc. Fourniture d'informations routieres comprenant des donnees de noeuds destinees a une liaison et utilisation de celle-ci
EP1886295A4 (fr) * 2005-05-18 2008-07-30 Lg Electronics Inc Fourniture d'informations routieres comprenant des donnees de noeuds destinees a une liaison et utilisation de celle-ci
US7729335B2 (en) 2005-05-18 2010-06-01 Lg Electronics Inc. Providing traffic information relating to a prediction of congestion status and using the same
US7940742B2 (en) 2005-05-18 2011-05-10 Lg Electronics Inc. Method and device for providing traffic information including a prediction of travel time to traverse a link and using the same
US7940741B2 (en) 2005-05-18 2011-05-10 Lg Electronics Inc. Providing traffic information relating to a prediction of speed on a link and using the same
US8086393B2 (en) 2005-05-18 2011-12-27 Lg Electronics Inc. Providing road information including vertex data for a link and using the same
USRE47239E1 (en) 2005-05-18 2019-02-12 Lg Electronics Inc. Method and apparatus for providing transportation status information and using it
WO2007045611A3 (fr) * 2005-10-21 2007-06-28 Bosch Gmbh Robert Procede de codage de perturbations du trafic routier et de calcul d'un itineraire
WO2007045611A2 (fr) * 2005-10-21 2007-04-26 Robert Bosch Gmbh Procede de codage de perturbations du trafic routier et de calcul d'un itineraire
WO2007073996A1 (fr) * 2005-12-22 2007-07-05 Robert Bosch Gmbh Procede de codage de messages, procede de decodage de messages et recepteur pour recevoir et interpreter des messages
KR101054633B1 (ko) * 2005-12-22 2011-08-04 로베르트 보쉬 게엠베하 메시지 코드화 방법, 메시지 디코드화 방법, 및 메시지를수신 및 평가하기 위한 수신기
US8140249B2 (en) 2005-12-22 2012-03-20 Robert Bosch Gmbh Method for encoding messages, method for decoding messages, and receiver for receiving and evaluating messages

Also Published As

Publication number Publication date
EP1460599B1 (fr) 2006-01-11
DE10312024A1 (de) 2004-09-30
EP1460599A3 (fr) 2004-10-27
DE50302180D1 (de) 2006-04-06

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