EP1413999B1 - Méthode de génération d'informations implicites à partir de données de véhicules flottants - Google Patents

Méthode de génération d'informations implicites à partir de données de véhicules flottants Download PDF

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Publication number
EP1413999B1
EP1413999B1 EP03090359A EP03090359A EP1413999B1 EP 1413999 B1 EP1413999 B1 EP 1413999B1 EP 03090359 A EP03090359 A EP 03090359A EP 03090359 A EP03090359 A EP 03090359A EP 1413999 B1 EP1413999 B1 EP 1413999B1
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EP
European Patent Office
Prior art keywords
information
time
traffic
turn
trip
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
EP03090359A
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German (de)
English (en)
Other versions
EP1413999A1 (fr
Inventor
Claudius SCHNÖRR
Björn Reichel
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.)
DDG Gesellschaft fuer Verkehrsdaten mbH
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DDG Gesellschaft fuer Verkehrsdaten mbH
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Publication of EP1413999A1 publication Critical patent/EP1413999A1/fr
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Publication of EP1413999B1 publication Critical patent/EP1413999B1/fr
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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions

Definitions

  • the invention relates to a method for generating implicit information from FC data for Determination of travel times and detection for accident clearance.
  • Traffic conditions can be very due to different influences change quickly.
  • Resulting traffic disturbances e.g. Traffic jams pose a threat to this following road users.
  • About current traffic reports or on Route-based travel time-based route recommendations become road users Such disturbances, also for safety reasons to avoid accidents, Brought knowledge.
  • FCD Floating Car Data
  • the transmitted measured value history covers only a small part of the closer Past.
  • the information contained implicitly therein not evaluated over free routes and free intersections and used, because the vehicle preferably reports when entering congestion events.
  • These Information is however for the interpretation of the traffic situation and for good routes or even Diversion recommendations, especially in metropolitan areas, are as important as knowledge about Jam events.
  • the transmission therefore usually takes place asynchronously in time depending on the fulfilled criterion.
  • the latter criterion is used for the detection of congestion events in the the vehicle has entered.
  • a road consists of a sequence of sections, also called “road elements (RE) "Can the individual road elements along the tripel beyond doubt be located, the result is a complete sequence of road elements passed through. If there are doubts about the way through in the case of several alternative routes then so this list may also have gaps. From this list of localized road elements Then the route taken by the vehicle is reconstructed.
  • RE road elements
  • the invention is therefore based on the object, the information contained implicitly win, evaluate and suitably interpret or exploit.
  • the invention solves the task of extraction, evaluation, interpretation and Utilization of implicit information according to the characteristics of the Claim 1.
  • Advantageous embodiments are specified in the subclaims.
  • the method of the invention provides a robust solution to this problem. It is open all types of roads, both inside and outside, to determine clearances and Junction crossings based on FCD can be used. It is therefore also for the creation of Travel times and traffic reports as well as for direct vehicle control and traffic control and for many other services.
  • the generated traffic information is called traffic information or as Route recommendations communicated to road users.
  • FIG. 1 shows the location of road elements 2 along a series of measuring points x a direction of travel 1, which transmits the floating car (FC) 4 to a central station. Result is a consequence of traversed road elements 2. From this is the travel of the vehicle in the form of reconstructed route 3.
  • FC floating car
  • FIG. 2 shows the reconstruction of the travel path along a direction of travel 1 between two FC messages of the same vehicle 4 by using the between by road elements. 2 reconstructed localized routes 3 obtained implicitly localized route 5.
  • FIG. 3 shows the reconstruction of the turning behavior at an intersection. For example, send a vehicle 4, because it was stuck in a traffic jam in front of an intersection, and it later announces itself somewhere else, so is on a turning process according to the direction of travel 1 closed.
  • the FC transmits only a small part of its measured value history and this is mainly triggered by congestion events, it only provides information for the parts of the route that are explicitly "marked” by triples with measured value information. There is no explicit information for the routes between the message positions.
  • the transmitted information may also be represented in other form than triples, eg as a sequence of route information (x1, x2, t1, t2, v), where x1 and x2 denote the beginning and the end of a route, t1 and t2 designate the times, where the vehicle reached x1 or x2, and v stands for the mean speed on the track.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • General Factory Administration (AREA)
  • Navigation (AREA)

Claims (7)

  1. Procédé de génération d'informations implicites à partir de données FC pour la détermination de durées de trajets et de durées de franchissement de croisements et pour la détection de perturbations dans un réseau routier,
    caractérisé en ce que,
    lors de la réception d'un télégramme FC, le dernier télégramme FC de la même course est identifié;
    à partir des informations géographiques et temporelles des deux télégrammes, le trajet parcouru entre les deux télégrammes, qui n'est pas décrit explicitement par ces informations, est reconstitué par une recherche entre diverses alternatives;
    une vitesse moyenne ou une durée est déterminée pour le trajet parcouru entre les deux télégrammes et/ou des fréquences de bifurcation et temps d'attente de bifurcation sont déterminés pour l'ensemble des croisements situés sur le trajet ;
    à partir des durées ou des vitesses correspondant à ce trajet et /ou des fréquences et temps d'attente de bifurcation aux croisements, des informations sont générées par des systèmes d'information de trafic et communiquées directement ou indirectement aux usagers de la route par des services d'information.
  2. Procédé selon la revendication 1,
    caractérisé en ce que,
    à partir de la durée du trajet ou de la vitesse, un état du trafic est déterminé pour ce trajet reconstitué.
  3. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que,
    à partir de la durée du trajet ou de la vitesse, une durée de franchissement ou un temps d'attente à la bifurcation est déterminé(e) pour un croisement.
  4. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    des fréquences de bifurcation sont déterminées pour les croisements pour chaque direction du parcours, en moyenne de la journée.
  5. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que,
    à partir de la durée du trajet ou de la vitesse ou à partir de l'état du trafic qui en est déduit, un flash d'information routière d'actualité est corrigé ou annulé.
  6. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que,
    au cas où il existe plusieurs alternatives de trajet, des probabilités sont attribuées aux différentes alternatives pour traitement pondéré ultérieur.
  7. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    les informations de trafic sont communiquées sous forme de flash d'information routière ou par le biais de recommandations d'itinéraires basées sur des durées de trajet ou les vitesses.
EP03090359A 2002-10-21 2003-10-21 Méthode de génération d'informations implicites à partir de données de véhicules flottants Expired - Lifetime EP1413999B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10249618 2002-10-21
DE10249618A DE10249618A1 (de) 2002-10-21 2002-10-21 Verfahren zur Generierung impliziter Informationen aus FC-Daten

Publications (2)

Publication Number Publication Date
EP1413999A1 EP1413999A1 (fr) 2004-04-28
EP1413999B1 true EP1413999B1 (fr) 2005-08-17

Family

ID=32049593

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EP03090359A Expired - Lifetime EP1413999B1 (fr) 2002-10-21 2003-10-21 Méthode de génération d'informations implicites à partir de données de véhicules flottants

Country Status (6)

Country Link
EP (1) EP1413999B1 (fr)
AT (1) ATE302453T1 (fr)
DE (2) DE10249618A1 (fr)
DK (1) DK1413999T3 (fr)
ES (1) ES2247484T3 (fr)
PT (1) PT1413999E (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100517411C (zh) * 2007-09-18 2009-07-22 中国科学院软件研究所 一种基于网络受限移动对象数据库的交通流数据采集与分析方法
CN100542330C (zh) * 2007-09-18 2009-09-16 中国科学院软件研究所 基于交通网络和gps的移动对象位置更新方法
JP5234691B2 (ja) 2009-01-28 2013-07-10 アイシン・エィ・ダブリュ株式会社 ナビゲーション装置、プローブ情報送信方法、プログラム及び交通情報作成装置
CN102110363B (zh) * 2011-03-30 2013-07-10 北京世纪高通科技有限公司 一种浮动车数据处理的方法及装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19513640C2 (de) * 1994-11-28 1997-08-07 Mannesmann Ag Verfahren zur Reduzierung einer aus den Fahrzeugen einer Fahrzeugflotte zu übertragenden Datenmenge
DE19755875A1 (de) * 1996-12-09 1998-06-10 Mannesmann Ag Verfahren zur Übertragung von Ortsdaten und Meßdaten von einem Endgerät, insbesondere Telematikendgerät an eine Verkehrszentrale
EP1012809B1 (fr) * 1997-11-05 2001-03-28 Swisscom AG Procede, systeme et dispositifs de collecte de donnees de trafic
DE19833614B4 (de) * 1998-07-25 2009-12-10 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Verkehrsqualitätserkennung und Fahrzeug als Mittel dazu
DE10018562C1 (de) * 2000-04-14 2002-02-07 Daimler Chrysler Ag Verfahren zur Gewinnung von Verkehrsdaten für ein Verkehrsnetz mit verkehrsgeregelten Netzknoten durch Meldefahrzeuge
DE10022812A1 (de) * 2000-05-10 2001-11-22 Daimler Chrysler Ag Verfahren zur Verkehrslagebestimmung auf Basis von Meldefahrzeugdaten für ein Verkehrsnetz mit verkehrsgeregelten Netzknoten
DE10036789A1 (de) * 2000-07-28 2002-02-07 Daimler Chrysler Ag Verfahren zur Bestimmung des Verkehrszustands in einem Verkehrsnetz mit effektiven Engstellen
DE10114016A1 (de) * 2001-03-22 2002-10-10 Vodafone Ag Verfahren zum Erzeugen von Verkehrsinformationen

Also Published As

Publication number Publication date
DE10249618A1 (de) 2004-05-13
DE50300990D1 (de) 2005-09-22
ES2247484T3 (es) 2006-03-01
PT1413999E (pt) 2005-11-30
ATE302453T1 (de) 2005-09-15
EP1413999A1 (fr) 2004-04-28
DK1413999T3 (da) 2005-11-28

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