EP2267680B1 - Procédé et système de transmission de données de trafic de route dynamique vers un terminal d'utilisateur - Google Patents

Procédé et système de transmission de données de trafic de route dynamique vers un terminal d'utilisateur Download PDF

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Publication number
EP2267680B1
EP2267680B1 EP09305589.5A EP09305589A EP2267680B1 EP 2267680 B1 EP2267680 B1 EP 2267680B1 EP 09305589 A EP09305589 A EP 09305589A EP 2267680 B1 EP2267680 B1 EP 2267680B1
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EP
European Patent Office
Prior art keywords
road traffic
road
user terminal
enabled user
checkpoints
Prior art date
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Application number
EP09305589.5A
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German (de)
English (en)
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EP2267680A1 (fr
Inventor
Tomas Brezmes Llecha
Juan Luis Gorricho
Josep Cotrina Navau
Marc Rersa
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Orange SA
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Orange SA
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Priority to EP09305589.5A priority Critical patent/EP2267680B1/fr
Publication of EP2267680A1 publication Critical patent/EP2267680A1/fr
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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
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
    • G08G1/0112—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from the vehicle, e.g. floating car data [FCD]
    • 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
    • G08G1/0125—Traffic data processing
    • G08G1/0129—Traffic data processing for creating historical data or processing based on historical data
    • 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
    • G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
    • G08G1/0141—Measuring and analyzing of parameters relative to traffic conditions for specific applications for traffic information dissemination
    • 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
    • G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
    • G08G1/09675—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where a selection from the received information takes place in the 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
    • G08G1/096811—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route where the route is computed offboard

Definitions

  • the present invention generally relates to embedded applications aiming at providing road traffic information to drivers concerning the road traffic in their surroundings, both in real time and with sufficient accuracy to be relevant and useful for avoiding road traffic congestion.
  • road traffic data are generally produced by external entities aiming at supervising road traffic in predefined and specific road sections, using means such as camera videos located at these specific road sections to evaluated instantaneous road traffic conditions before pushing information relative to these evaluated road traffic condition to traffic- information services.
  • the following method/system will allow guaranteeing the user/ driver to get in real time and in a very simple and visual way, road traffic data concerning the road traffic that occurs in their surroundings.
  • the present method and system will also allow guaranteeing the user/ driver to get road traffic data, not only regarding specific locations for major highways, roads or towns, but for all specific locations or smaller roads.
  • the present method and system propose an innovative way to obtain and display road traffic data for a user/ driver using embedded GPS ('Global Positioning System') application running on personal navigation devices or mobile terminals (for instance a mobile phone) having a GPS function or device, so as to use information which is feedback from GPS terminals embedded in vehicle drivers.
  • GPS Global Positioning System'
  • the present invention relates to a method for delivering road traffic data to at least a first position enabled user terminal of a plurality of position enabled user terminals accoding to claim 1.
  • the road traffic information server will estimate road traffic conditions for a set of predefined checkpoints of a mesh of checkpoints defining short distance (from 200 meters to 1000 meters, for instance) road sections on a roadmap.
  • the road traffic condition in the surroundings of a particular checkpoint is estimated based on the position and speed sent to the road traffic management server by user terminals identified as located in the surroundings of the particular checkpoint.
  • an estimated traffic map is produced by associating road traffic estimation data to each checkpoint of the mesh of checkpoints, before being transmitted to each mobile user terminal for display in simple and visual way that will instantaneously and dynamically inform the vehicle driver about the road traffic-conditions around their geographical and instantaneous position on a dynamic digital roadmap which is displayed on the terminal screen.
  • road traffic data not only regarding specific locations for major highways, roads or towns, but for all specific locations or smaller roads
  • road traffic data are directly fed back from terminals having localization means (for instance GPS device and/or function) and that have been embedded in the driver vehicle.
  • localization means for instance GPS device and/or function
  • the position and speed data are directly feedback from user terminal embedded in their respective vehicle, there is a high level accuracy of the source information that will benefit first the road traffic estimation calculation and, second, the quality of the road traffic estimations provided to drivers.
  • the method according to the invention provides a good level of accuracy regarding the delivered road traffic data displayed on user terminals, nearly in real-time.
  • the said road traffic management server is further arranged to determine the portion of the road traffic estimated map by selecting checkpoints located within a given range of the latest position received from the first position enabled user terminal.
  • the road traffic management server previous to transmitting of the at least one portion of road traffic estimated map to the user terminal that selects the checkpoints to be displayed on the user terminal, thus limiting the volume of road traffic data to transmit to the first user terminal.
  • the said first position enabled user terminal is further arranged to determine the portion of the road traffic estimated map by selecting checkpoints in the said at least one portion of the road traffic estimated map transmitted by the said road traffic management server.
  • a driver will also benefit from an ergonomic overview display of road traffic conditions that occur on all roads located in the surroundings of their geographical position represented for instance in the centre of the screen view displayed on their mobile terminal.
  • All the checkpoints of the mesh of checkpoints defining road sections located in the displayed surroundings of the driver's geographical position (represented with a cross on figure 1 ) have been displayed above the digital roadmap presented on the terminal screen to the user, as a mask, with respective visual indications corresponding to road traffic conditions estimated at each checkpoint.
  • the act of estimating road traffic data at a particular checkpoint of the said mesh of checkpoints comprises the acts of:
  • the said at least one instantaneous road traffic data is determined by calculating an average speed value using the said grouped speed data.
  • a road section being defined in between two checkpoints the said method also comprises an act of calculating the said instantaneous road traffic data comprises complementary acts of:
  • the said method comprises an act of coloring each checkpoints belonging to the at least one portion of the road traffic estimated map displayed on a screen of the first position enabled user terminal, with a predefined color depending on the average speed obtained from previous measures classified as “acceptable” and labeling this average value like “congested”, “dense traffic” or “fluid” according to the "average speed” repository to the said road traffic data associated to the said each checkpoints, respectively.
  • the said method comprises a complementary act of transmitting to the first position enabled user terminal an alternative route for reaching a destination point previously requested by the user, when the said road traffic data associated to a particular checkpoint in the surroundings of which the first position enabled user terminal is located in, is classified as "congested".
  • the method comprises a preliminary act for dynamically building the said mesh of checkpoints comprising the following steps of:
  • New creation of a checkpoint in the mesh of checkpoints could be done dynamically by the road traffic management server, but also manually by a user.
  • the invention also relates to a road traffic management server for delivering road traffic data to at least a first position enabled user terminal of a plurality of position enabled user terminals according to claim 9.
  • the said server is arranged to determine the portion of the road traffic estimated map by selecting checkpoints located within a given range of the latest position received from the first position enabled user terminal.
  • the invention also relates to a position enabled user terminal for displaying road traffic data, said user terminal being connected through a telecommunication network to a road traffic management server according to claim 9 and embarked on board a vehicle moving within a road infrastructure of a plurality of position enabled user terminals, said position enabled user terminal being configured to:
  • the invention also relates to a computer readable carrier according to claim 12 including computer program instructions that cause a computer to implement a method according to claims 1-8.
  • This invention proposes an innovative way to obtain and display dynamically traffic information for a user with a GPS-embedded-mobile, under the assumption that the user is using a mobile phone (or device) with GPS enabled capacities.
  • the innovation resides mainly in:
  • a car driver who is driving his car 100 activates their GPS enabled mobile terminal 101 through a connection (for instance a GSM, GPRS or UMTS connection) to a telecommunication operator platform 103
  • the mobile GPS terminal sends F1 to a traffic management server 104 connected to the operator platform 103, at regular time intervals - for instance each 40 seconds, its instantaneous geographical position and speed the mobile GPS terminal 101 has received F2 from a constellation 106 of satellites.
  • a traffic estimation program running on the traffic information server 104 will take into consideration of the speed and positioning data it has received F1 in relation with a mesh of predetermined checkpoints (105 1 , 105 2 , 105 3 , ..., 105 m ) stored in a memory zone of the traffic information server 104 and that have been reported on the digital road map the user 100 sees on the screen of their GPS enabled mobile terminal 101 (for instance a mobile phone with GPS capacities).
  • Each of the checkpoints of the mesh of checkpoints is located on roads (without any size distinction).
  • Each pair of adjacent checkpoints belonging to the mesh of checkpoints defines road sections being around one hundred meters long, so as to obtain close and representative traffic information to be delivered in a colored and visual way to the driver 100 on the screen of their GPS enabled mobile terminal 101.
  • the traffic estimation application running on the traffic information server 104 will identify for all checkpoints of the mesh of checkpoints, the users who are geographically located in its 50 meters surroundings using the received positioning data, respectively. For each of these drivers, it will consider and calculate with their respective speed previously transmitted to the server 104, an estimated average speed for crossing the road section the drivers are located on.
  • the traffic data will be classified as "discarded - too fast" on the said road section starting from the checkpoint around which drivers are located at a specific time interval.
  • the traffic data will be classified as "discarded - too slow" on the said road section starting from the checkpoint around which drivers are located at a specific time interval.
  • the traffic data will be classified as "acceptable" on the said road section starting from the checkpoint around which drivers are located at a specific time interval.
  • the traffic estimation application running on the server 104 will execute an act of displaying at least one visual information representing instantaneous traffic data.
  • Such an act consists in associating a specific color to each checkpoints of the said mesh of checkpoint starting a road section and that is located in the surroundings of the user terminal localization displayed on the screen, depending on the label given to the said traffic data associated with each of the said checkpoints (105 1 , 105 2 , 105 3 , ..., 105 m ), respectively.
  • a green colored checkpoint 105 1 will be representative of "fluid" road traffic on the road section close to the driver's position 107 driving on its route.
  • An orange colored checkpoint 105 3 displayed will be representative of a "dense traffic" road traffic on the road section 108 the driver's position 107 driving on its route is located on.
  • a red colored checkpoint 105 5 or 105 6 on figure 1 will be representative of a "congested" road traffic on the road section 108 the driver's position 107 driving on its route is located on, with potential traffic jam occurring close to this checkpoints 105 5 or 105 6 .
  • the driver is able to see real-time traffic information on their digital roadmap displayed on the screen of their mobile GPS terminal (or other terminal with localization capacities) and, at the same time deliver at regular time intervals to a remote road traffic management server 104 and through an operator localization platform 103, their geographical position and speed so as to enhance the traffic information service while guaranteeing each driver's privacy.
  • the road traffic management server 104 sends back (arrow F3 on figure 1 ) for display on drivers' terminals and through the operator localization platform 103 and the telecommunication network 109 the requested road traffic data. These data are visually superimposed with a specific color to the road map displayed on the screen of a driver's terminal, so as to deliver quick and visual information to him relative to the current state of the traffic conditions around each checkpoint of the mesh of checkpoints.
  • FIG 2 that presents data flow (arrows F20 and F21 ) involving the client application running on the mobile user terminal 201, there is a continuous user GPS tracking F20 between the GPS application or device embedded on the mobile phone 201 and at least one satellite 200. Based on this user GPS tracking, the user terminal 201 sends at a regular time interval of, for example ten to forty seconds, to a traffic management server 202 at least both information concerning the instantaneous positioning and speed of the user terminal 201 which is embedded in the car of the user.
  • a traffic management server 202 at least both information concerning the instantaneous positioning and speed of the user terminal 201 which is embedded in the car of the user.
  • the traffic management server 302 receives F31 at each regular time interval a plurality of pairs of speed and positioning data from a plurality 300 of mobile terminals (300 1 , 300 2 , 300 3 , ... 300 n ) respectively, registered by the real-time traffic information service according to the present invention.
  • Each mobile terminal (300 1 , 300 2 , 300 3 , ... 300 n ) embeds a GPS device/ application aiming at tracking F30 data relative to its instantaneous geographical position and speed from requests to a constellation of satellites 301.
  • the traffic information server 302 uses all the speed and positioning data received from the plurality 300 of user terminals (300 1 , 300 2 , 300 3 , ... 300 n ), the traffic information server 302 runs a specific algorithm to estimate the traffic conditions in the surroundings of each user terminal instantaneous position and relatively to checkpoints of a mesh of checkpoints which is stored in a memory zone of the traffic management server 302. For each terminal (300 1 , 300 2 , 300 3 , ... 300 n ) of the plurality 300 of terminals, the traffic information server 302 will compose 303 dynamically the traffic information map with all the traffic data generated using an average of all the speed and positioning data relative to specific geographical respectively defined in a close surrounding of each checkpoint of the mesh of checkpoints.
  • the traffic management server makes a push of each traffic information map for visualization on the screen of each corresponding user terminal (300 1 , 300 2 , 300 3 , ... 300 n ), respectively.
  • the road traffic state estimation algorithm processes data as described below:
  • This application can be used wherever road traffic data is needed but also from an ecological point of view allowing people to reduce greenhouse gas emissions.
  • Figure 4 describes the different steps of the method according to the invention.
  • Such a method is aiming at delivering road traffic data to at least a first position enabled user terminal of a plurality of position enabled user terminals, each of said position enabled user terminal being embarked on board a vehicle moving within a road infrastructure, said user terminal being connected through a telecommunication network to a road traffic management server, said method comprising the acts of:
  • the said road traffic management server is further arranged to determine the portion of the road traffic estimated map by selecting checkpoints located within a given range of the latest position received from the first position enabled user terminal.
  • the said first position enabled user terminal could also be further arranged to determine the portion of the road traffic estimated map by selecting checkpoints in the said at least one portion of the road traffic estimated map transmitted by the said road traffic management server.
  • the said act of estimating 401 road traffic data at a particular checkpoint of the said mesh of checkpoints comprises the acts of:
  • the said at least one instantaneous road traffic data is determined by calculating 401' an average speed value using the said grouped speed data.
  • the said act of calculating 403 the said instantaneous road traffic data comprises complementary acts of:
  • the method also comprises an act of coloring 406 each checkpoints belonging to the at least one portion of the road traffic estimated map displayed on a screen of the first position enabled user terminal, with a predefined color depending on the average speed obtained from previous measures classified as “acceptable” and labeling this average value like “congested”, “dense traffic” or “fluid” according to the "average speed” repository to the said road traffic data associated to the said each checkpoints, respectively.
  • the method also comprises a complementary act of transmitting 407 to the first position enabled user terminal an alternative route for reaching a destination point previously requested by the user, when the said road traffic data associated to a particular checkpoint in the surroundings of which the first position enabled user terminal is located in, is classified as "congested".
  • the method also comprises a preliminary act for dynamically building 'INIT' the said mesh of checkpoints comprising the following steps of:

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Claims (12)

  1. Procédé pour fournir des données de circulation routière à au moins un premier terminal utilisateur activé en position d'une pluralité de terminaux utilisateur activés en position, chacun dudit terminal utilisateur activé en position étant embarqué à bord d'un véhicule se déplaçant dans une infrastructure routière, ledit terminal utilisateur étant connecté par l'intermédiaire d'un réseau de télécommunication à un serveur de gestion de circulation routière, ledit procédé comprenant les actions de :
    ▪ la réception (400), dans le serveur de gestion de circulation routière, de positions et de données de vitesse à partir de la pluralité de terminaux utilisateur activés en position,
    ▪ l'estimation (401) de données de circulation routière à une pluralité de points de contrôle prédéfinis appartenant à une maille de points de contrôle prédéfinis assortis à l'infrastructure routière en utilisant les positions et données de vitesse reçues ;
    ▪ la production (404) d'une carte de circulation routière estimée en associant chaque point de contrôle prédéfini à ses données de circulation routière estimées ;
    ▪ la transmission (405) d'au moins une partie de la carte de circulation routière estimée au premier terminal utilisateur activé en position pour l'affichage subséquent de ladite partie ; et
    dans lequel ledit acte de l'estimation (401) de données de circulation routière à un point de contrôle particulier de ladite maille de points de contrôle comprend les actions de :
    ▪ le groupement (402) de toutes les données de vitesse correspondant à des positions de données qui ont été envoyées par lesdits terminaux utilisateur activés et qui sont situées à une distance inférieure à une distance de seuil prédéfinie par rapport audit point de contrôle particulier ;
    ▪ le calcul (403), en utilisant toutes lesdites données de vitesse qui ont été groupées, d'au moins une donnée de circulation routière instantanée spécifique audit point de contrôle particulier, pour une association subséquente audit point de contrôle particulier ;
    dans lequel il comprend un acte préliminaire pour construire dynamiquement (INIT) ladite maille de points de contrôle comprenant les étapes suivantes de :
    ▪ s'il n'y a aucun point de contrôle dans une distance prédéfinie minimum autour d'un terminal utilisateur activé en position instantanée d'une pluralité de terminaux utilisateur activés, un nouveau point de contrôle est créé pour compléter ladite maille de points de contrôle avec des coordonnées géographiques correspondant à ladite position dudit terminal utilisateur activé ;
    ▪ l'assortiment du point de contrôle créé à l'infrastructure routière.
  2. Procédé selon la revendication 1, dans lequel ledit serveur de gestion de circulation routière est en outre agencé pour déterminer la partie de la carte de circulation routière estimée en sélectionnant des points de contrôle situés au sein d'une étendue donnée de la toute dernière position reçue du premier terminal utilisateur activé en position.
  3. Procédé selon la revendication 1, dans lequel ledit premier terminal utilisateur activé en position est en outre agencé pour déterminer la partie de la carte de circulation routière estimée en sélectionnant des points de contrôle dans ladite au moins une partie de la carte de circulation routière estimée transmise par ledit serveur de gestion de circulation routière.
  4. Procédé selon la revendication 3, dans lequel ladite au moins une donnée de circulation routière instantanée est déterminée par le calcul (401') d'une valeur de vitesse moyenne en utilisant lesdites données de vitesse groupées.
  5. Procédé selon la revendication 4, dans lequel une section routière étant défini dans entre deux points de contrôle, ledit acte du calcul (403) de ladite donnée de circulation routière instantanée comprend des actes complémentaires de :
    l'identification (4031) de toutes les sections routières de ladite carte routière ayant ledit point de contrôle particulier pour extrémité ;
    le calcul (4032) d'un temps de traversée estimé pour chaque section routière identifiée, respectivement, en utilisant ladite valeur de vitesse moyenne calculée et en interpolant une vitesse desdites données de vitesse groupées.
  6. Procédé selon la revendication 5, dans lequel :
    ▪ si le temps de traversée estimé calculé pour une section routière particulière est inférieur à un pourcentage minimum prédéfini d'un temps de traversée moyen référentiel auparavant calculé pour cette section routière particulière, alors les données de circulation routière seront classifiées comme étant « rejetées - trop lentes » sur ladite section routière commençant à partir dudit point de contrôle particulier ;
    ▪ si le temps de traversée estimé calculé pour une section routière particulière est supérieur à un pourcentage maximum prédéfini d'un temps de traversée moyen référentiel auparavant calculé pour cette section routière particulière, alors les données de circulation routière seront classifiées comme étant « rejetées - trop rapides » sur ladite section routière commençant à partir dudit point de contrôle particulier ;
    ▪ si le temps de traversée estimé calculé pour une section routière particulière est entre lesdits pourcentages minimum et maximum prédéfinis d'un temps de traversée moyen référentiel auparavant calculé pour cette section routière particulière, alors les données de circulation routière seront classifiées comme étant « acceptables » sur ladite section routière commençant à partir dudit point de contrôle particulier.
  7. Procédé selon la revendication 6, dans lequel il comprend un acte de la coloration (406) de chaque point de contrôle appartenant à l'au moins une partie de la carte de circulation routière estimée affichée sur un écran du premier terminal utilisateur activé en position, une couleur prédéfinie dépendant de la vitesse moyenne obtenue à partir de mesures précédentes étant classifiée comme étant « acceptable » et de la qualification de cette valeur moyenne de : « embouteillé », « circulation dense » ou « fluide » selon le référentiel « vitesse moyenne » par rapport auxdites données de circulation routière associées à chaque dit point de contrôle, respectivement.
  8. Procédé selon la revendication 7, dans lequel il comprend un acte complémentaire de la transmission (407), au premier terminal utilisateur activé en position, d'un autre itinéraire pour atteindre un point de destination auparavant demandé par l'utilisateur, lorsque lesdites données de circulation routière associées à un point de contrôle particulier dans les environs duquel le premier terminal utilisateur activateur en position est situé, sont classifiées comme étant « embouteillé ».
  9. Serveur de gestion de circulation routière pour fournir des données de circulation routière à au moins un premier terminal utilisateur activé en position d'une pluralité de terminaux utilisateur activés en position, chacun dudit terminal utilisateur étant embarqué à bord d'un véhicule se déplaçant dans une infrastructure routière, ledit terminal utilisateur étant connecté par l'intermédiaire d'un réseau de télécommunication audit serveur de gestion de circulation routière, ledit serveur de gestion de circulation routière étant configuré pour :
    ▪ recevoir, dans le serveur de gestion de circulation routière, des positions et données de vitesse à partir de la pluralité de terminaux utilisateur activés en position,
    ▪ estimer des données de circulation routière à une pluralité de points de contrôle prédéfinis appartenant à une maille de points de contrôle prédéfinis assortis à l'infrastructure routière en utilisant les positions et données de vitesse reçues ;
    ▪ produire une carte de circulation routière estimée en associant chaque point de contrôle prédéfini à ses données de circulation routière estimées ;
    ▪ transmettre une partie de la carte de circulation routière estimée au premier terminal utilisateur activé en position pour l'affichage subséquent de ladite partie ; et
    dans lequel ledit acte de l'estimation (401) de données de circulation routière à un point de contrôle particulier de ladite maille de points de contrôle comprend les actions de :
    ▪ le groupement (402) de toutes les données de vitesse correspondant à des positions de données qui ont été envoyées par lesdits terminaux utilisateur activés et qui sont situées à une distance inférieure à une distance de seuil prédéfinie par rapport audit point de contrôle particulier ;
    ▪ le calcul (403) en utilisant toutes lesdites données de vitesse qui ont été groupées, d'au moins une donnée de circulation routière instantanée spécifique audit point de contrôle particulier, pour une association subséquente audit point de contrôle particulier ; et
    dans lequel il comprend un acte préliminaire pour construire dynamiquement (INIT) ladite maille de points de contrôle comprenant les étapes suivantes de :
    ▪ s'il n'y a aucun point de contrôle dans une distance prédéfinie minimum autour d'un terminal utilisateur activé en position instantanée d'une pluralité de terminaux utilisateur activés, un nouveau point de contrôle est créé pour compléter ladite maille de points de contrôle avec des coordonnées géographiques correspondant à ladite position dudit terminal utilisateur activé ;
    ▪ l'assortiment du point de contrôle créé à l'infrastructure routière.
  10. Serveur selon la revendication précédente 9, en outre agencé pour déterminer la partie de la carte de circulation routière estimée en sélectionnant des points de contrôle situés au sein d'une étendue donnée de la toute dernière position reçue du premier terminal utilisateur activé en position.
  11. Terminal utilisateur activé en position pour afficher des données de circulation routière, ledit terminal utilisateur étant connecté par l'intermédiaire d'un réseau de télécommunication à un serveur de gestion de circulation routière selon la revendication 9 et embarqué à bord d'un véhicule se déplaçant dans une infrastructure routière d'une pluralité de terminaux utilisateur activés en position, ledit terminal utilisateur activé en position étant configuré pour :
    ▪ transmettre, au serveur de gestion de circulation routière, des positions et des données de vitesse à partir du terminal utilisateur activé en position,
    ▪ recevoir la carte de circulation routière estimée à partir du serveur de gestion de circulation routière, ladite carte de circulation routière estimée comprenant une pluralité de points de contrôle mappant l'infrastructure routière, et étant associée à une estimation de données de circulation routière au moins sur la base de positions et de données de vitesse transmises,
    ▪ afficher une partie de la carte de circulation estimée reçue en affichant des données de circulation routière connexes à des points de contrôle à l'intérieur d'un voisinage prédéfini de la position actuelle du terminal utilisateur activé en position.
  12. Support lisible par ordinateur incluant des instructions de programme d'ordinateur qui font en sorte qu'un ordinateur mette en œuvre un procédé selon les revendications 1 à 8, pour fournir des données de circulation routière à au moins un premier terminal utilisateur activé en position d'une pluralité de terminaux utilisateur activés en position, chacun dudit terminal utilisateur activé en position étant embarqué à bord d'un véhicule se déplaçant dans une infrastructure routière, ledit terminal utilisateur étant connecté par l'intermédiaire d'un réseau de télécommunication à un serveur de gestion de circulation routière, ledit procédé comprenant les actions de :
    ▪ la réception, dans le serveur de gestion de circulation routière, de positions et de données de vitesse à partir de la pluralité de terminaux utilisateur activés en position,
    ▪ l'estimation de données de circulation routière à une pluralité de points de contrôle prédéfinis appartenant à une maille de points de contrôle prédéfinis assortis à l'infrastructure routière en utilisant les positions et données de vitesse reçues ;
    ▪ la production d'une carte de circulation routière estimée en associant chaque point de contrôle prédéfini à ses données de circulation routière estimées ;
    ▪ la transmission d'au moins une partie de la carte de circulation routière estimée au premier terminal utilisateur activé en position pour l'affichage subséquent de ladite partie ; et
    dans lequel ledit acte de l'estimation (401) de données de circulation routière à un point de contrôle particulier de ladite maille de points de contrôle comprend les actions de :
    ▪ le groupement (402) de toutes les données de vitesse correspondant à des positions de données qui ont été envoyées par lesdits terminaux utilisateur activés et qui sont situées à une distance inférieure à une distance de seuil prédéfinie par rapport audit point de contrôle particulier ;
    ▪ le calcul (403), en utilisant toutes lesdites données de vitesse qui ont été groupées, d'au moins une donnée de circulation routière instantanée spécifique audit point de contrôle particulier, pour une association subséquente audit point de contrôle particulier ; et
    dans lequel il comprend un acte préliminaire pour construire dynamiquement (INIT) ladite maille de points de contrôle comprenant les étapes suivantes de :
    ▪ s'il n'y a aucun point de contrôle dans une distance prédéfinie minimum autour d'un terminal utilisateur activé en position instantanée d'une pluralité de terminaux utilisateur activés, un nouveau point de contrôle est créé pour compléter ladite maille de points de contrôle avec des coordonnées géographiques correspondant à ladite position dudit terminal utilisateur activé ;
    ▪ l'assortiment du point de contrôle créé à l'infrastructure routière.
EP09305589.5A 2009-06-23 2009-06-23 Procédé et système de transmission de données de trafic de route dynamique vers un terminal d'utilisateur Active EP2267680B1 (fr)

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FR2979459A1 (fr) * 2011-08-30 2013-03-01 Meed Group Dispositif pour la mobilite routiere et urbaine et pour la resolution du probleme d'embouteillage
DE102011119544B3 (de) * 2011-11-26 2013-05-16 Volkswagen Aktiengesellschaft Verfahren zum Warnen eines Fahrers vor einer Gefahrenstelle
DE102012222931A1 (de) * 2012-12-12 2014-06-12 Robert Bosch Gmbh Verfahren und Vorrichtung zur Ermittlung einer Position und/oder Art einer Straßeninfrastruktureinrichtung
CN109064750B (zh) * 2018-09-28 2021-09-24 深圳大学 城市路网交通估计方法及系统

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