EP4402666A1 - Procédé de prédiction d'une condition météo de surface d'un segment routier - Google Patents
Procédé de prédiction d'une condition météo de surface d'un segment routierInfo
- Publication number
- EP4402666A1 EP4402666A1 EP22769592.1A EP22769592A EP4402666A1 EP 4402666 A1 EP4402666 A1 EP 4402666A1 EP 22769592 A EP22769592 A EP 22769592A EP 4402666 A1 EP4402666 A1 EP 4402666A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- segment
- road segment
- models
- weather
- prediction
- 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.)
- Pending
Links
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
- 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
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3691—Retrieval, searching and output of information related to real-time traffic, weather, or environmental conditions
-
- 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
- G08G1/09—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
- G08G1/09—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
- G08G1/096758—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where no selection takes place on the transmitted or the received 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
- G08G1/0962—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
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/048—Detecting movement of traffic to be counted or controlled with provision for compensation of environmental or other condition, e.g. snow, vehicle stopped at detector
Definitions
- the invention belongs to the field of intelligent transport, and relates more particularly to a method and a device for predicting a weather condition on the surface of a road segment.
- Surface conditions on a particular segment of a road network can be estimated to some extent by a server from local weather forecasts and observations. Such forecasts are generally available for periods of 15 minutes with a granularity of the order of kilometers from weather forecast providers.
- each road segment should be taken into account to reliably estimate a surface condition.
- RWIS Road Weather Information System in English
- data may be available to establish correlations between a weather forecast or observation for a particular location and the observed surface conditions.
- maintaining an exhaustive mapping of the condition of the pavement on the whole of a road network would require a very large number of fixed stations or contributor vehicles equipped with suitable sensors and the continuous processing of a gigantic amount of information.
- a method for predicting a surface weather condition of a particular road segment of a geographical area comprising the following steps:
- the geographical area is partitioned into a plurality of weather cells
- the geographical area is subdivided into regions composed of weather cells sharing similar climatic characteristics
- At least one prediction model is trained using variables from weather observations associated with surface conditions observed in the region considered,
- Each road segment of the network is associated with at least two particular prediction models, at least one of the models being chosen from among the trained models, and
- At least the at least two particular models associated with the segment considered are selected.
- the selected models are inferred from meteorological data obtained for the geographic location of the road segment to obtain a plurality of predictions for the segment, and
- the plurality of predictions obtained are combined to obtain a consolidated surface condition for the segment.
- the association of at least two distinct prediction models with a particular road segment makes it possible to take into account the local specificities of the road segment.
- the predictions made on this segment are further improved.
- the method thus makes it possible to obtain a reliable estimate of the surface weather conditions at any point of a road network without it being necessary to have exhaustive field observations.
- the prediction of a surface condition for a particular road segment is triggered by the reception, originating from a vehicle, of a message comprising at least one geographical location making it possible to identify the road segment , the method further comprising a step of transmitting the consolidated surface condition to the vehicle.
- the method allows a vehicle traveling on a road network to obtain "on demand" a surface condition for a determined road segment, for example for a segment on which it is traveling or on which it is likely to travel in near future.
- a surface condition for a determined road segment for example for a segment on which it is traveling or on which it is likely to travel in near future.
- the prediction of a surface condition for a particular road segment is triggered by obtaining at least one new weather datum for the segment, the method further comprising a step of storing the prediction consolidated in association with said road segment.
- a predicted consolidated surface condition for a road segment is always immediately available for a plurality of vehicles.
- Such an arrangement is particularly advantageous for road segments with heavy traffic on which many vehicles are likely to demand a surface condition.
- the predictions made by the models associated with the road segment are combined according to a conservative approach according to which a level of risk is associated with a surface condition capable of being predicted, the consolidated prediction being defined by the prediction associated with the highest risk.
- the prediction retained is the one that ensures maximum safety. For example, if three models associated with a road segment respectively predict “dry”, “dry” and “ice” conditions, the prediction retained will be “ice”; this surface condition presents the highest risk.
- the configuration of the vehicle can then be adapted in such a way as to prevent the highest risk.
- the predictions made by the models associated with the road segment are combined according to a majority approach according to which the consolidated prediction is defined by the class mainly predicted by the models associated with the road segment.
- the consolidated prediction is defined by an average of the probabilities predicted by the models associated with the road segment.
- the at least two models selected for a road segment are selected according to at least one climatic similarity criterion.
- a segment comprised in a homogeneous climatic region as determined during the subdivision step is associated with at least two models trained from observations made on this region.
- the at least two models selected for a road segment are selected so as to minimize the difference between a consolidated surface condition and an observed surface condition.
- a combination of models is thus obtained which is particularly suited to the road segment considered, or to the type of segment (country road, motorway, etc.).
- a device for predicting a surface weather condition of a particular road segment of a geographical area comprising a processor and a memory in which are recorded program instructions adapted to put implements the following steps, when executed by the processor:
- the geographical area is partitioned into a plurality of weather cells
- the geographical area is subdivided into regions composed of weather cells sharing similar climatic characteristics
- At least one prediction model is trained from variables resulting from weather observations associated with surface conditions observed in the region considered,
- Each road segment of the network is associated with at least two particular prediction models, at least one of the models being chosen from among the trained models, and
- At least the at least two particular models associated with the segment considered are selected,
- the selected models are inferred from meteorological data obtained for the geographic location of the road segment to obtain a plurality of predictions for the segment, and
- the plurality of predictions obtained are combined to obtain a consolidated surface condition for the segment.
- the invention also relates to a server comprising a prediction device as described previously.
- the invention also relates to an information medium comprising computer program instructions configured to implement the steps of a prediction method as described previously, when the instructions are executed by a processor.
- the information medium can be a non-transitory information medium such as a hard disk, a flash memory, or an optical disk for example.
- the information carrier can be any entity or device capable of storing instructions.
- the medium may comprise a storage means, such as a ROM, RAM, PROM, EPROM, a CD ROM or even a magnetic recording means, for example a hard disk.
- the information medium can be a transmissible medium such as an electrical or optical signal, which can be conveyed via an electrical or optical cable, by radio or by other means.
- the information carrier may be an integrated circuit in which the program is incorporated, the circuit being adapted to execute or to be used in the execution of the method in question.
- FIG. 1 represents an environment suitable for implementing the prediction method according to a particular embodiment.
- FIG. 2 is a flowchart on which are represented the main steps of a method of prediction according to a particular embodiment.
- Figure 3a represents a map of Germany partitioned into a plurality of weather cells.
- FIG. 3b represents a map of Germany on which symbols have represented the climatic characteristics of each weather cell represented in FIG. 3a.
- FIG. 1 shows a server 100 of a telecommunications network 101.
- the server 100 comprises a processor, a memory and a communication interface allowing it to exchange messages with a vehicle 102 via a network of cellular access 103 interconnected with the communication network 101 and with a server 104 of a weather data provider.
- the memory of the server 100 includes computer program instructions suitable for implementing the steps of a prediction method according to a particular embodiment. On initialization, the computer program instructions are for example loaded into a RAM memory (Random Access Memory in English) before being executed by the processor of the server 100.
- the processor of the server 100 implements the steps of the prediction method according to the instructions of the computer program loaded in the memory.
- the server 104 is suitable for transmitting to the server 101 weather forecasts and observations relating to a particular geographical area.
- the server 104 periodically transmits weather data to the server 100, for example every 15 minutes, with a geographical granularity of approximately 1° of longitude and latitude.
- a geographical granularity of approximately 1° of longitude and latitude.
- different geographical or temporal granularities can be envisaged without modifying the invention.
- the server 104 can transmit weather data with a granularity of the order of 100 km2, 25 km2, or even lkm2.
- the vehicle 102 includes a wireless communication interface allowing it to connect to the cellular access network 103 to exchange messages with “Cloud” type online services.
- the communication interface of the vehicle 102 allows him to consult the server 100 in order to obtain in particular a surface weather condition of the road segment on which he is traveling and/or on which he will be traveling in the near future, for example a degree of humidity and/or height of a film of water on the roadway, whether or not there is ice or snow.
- the communication interface is for example a 2G, 3G, 4G, 5G interface, or else a WiFi or Wimax interface.
- the communication interface of the server 100 also allows it to exchange messages with ground stations 105 distributed over the territory considered and adapted to transmit observations on the state of the roadway at various locations of a road network.
- FIG. 2 is a flowchart on which are represented the main steps of the method according to a particular embodiment.
- the server 100 partitions a territory considered into a plurality of cells for which weather forecasts and/or observations are available from the server 104.
- FIG. Germany which has been partitioned into cells whose granularity corresponds to the granularity offered by the weather forecast server 104, that is to say in this example into cells of approximately 25 km on each side.
- the server 100 obtains a history of observations and/or weather forecasts for each of the cells defined in step 200. These histories have for example a frequency of one day over the last 5 years. .
- the server 100 selects for each of the cells, characteristic data, such as for example, in a non-exhaustive manner, minimum, maximum and average temperatures, a daily average of the wind speed measured at 10 meters above sea level. altitude, atmospheric pressure, amount of precipitation, or potential evapotranspiration. These data are normalized and used to carry out an unsupervised classification in order to determine climatically homogeneous geographical regions, for example mountainous regions, coastal regions of the central plains, etc.
- the server 100 can implement an algorithm unsupervised classification such as K-means or DBScan.
- FIG. 3b There is represented in FIG. 3b a map of Germany on which has been indicated by circles comprising distinct patterns different climatic characteristics identified for each of the cells defined in step 200.
- the unsupervised classification step reveals 8 distinct regions, such that within a particular region relatively homogeneous climatic conditions are observed.
- the server 100 obtains observations relating to surface conditions of at least one road segment for each of the geographical regions determined at step 201. These observations are for example obtained from ground stations such as station 105 of FIG. 1. Such stations are suitable for observing the state of the roadway, such as surface temperature, the presence of ice or snow, the dryness or humidity of the surface, and/or the height of a film of water on the surface of the road. Such stations can use different types of sensors to provide these observations, such as optical or thermal cameras, temperature probes, or anemometers, and transmit the data thus captured to a server such as the server 100. The data transmitted comprises in in addition to the type of surface or road segment and the location and/or an identifier of the station. These stations being expensive and unevenly distributed on the road network, the fact of having defined regions whose climatic conditions are homogeneous makes it possible to transpose with a certain confidence observations made by a ground station at other locations in the same region.
- the server 100 causes at least one prediction model from observations collected from a ground station such as station 105 and weather forecasts and/or observations for the weather cell in which the station is located. More precisely, the server associates in a characteristic vector on the one hand variables resulting from weather forecasts and/or observations, such as atmospheric pressure, frequency, type and quantity of precipitation, temperature, a UV index, a rate sunshine or cloud cover thickness, and on the other hand target variables from observations made on the ground by a station in the same weather cell.
- Such training makes it possible to establish correlations between weather observations or forecasts in a particular weather cell and the surface conditions of a road segment in this weather cell. It is thus possible to train a plurality of prediction models from any ground truth observed on a road segment of a particular climatic region and weather forecasts and/or observations for the weather cell in which the road segment is located.
- a global prediction model is trained for at least one climatic region identified in step 201 from meteorological data obtained and ground observations obtained for the entire climatic region considered.
- a generic model is thus obtained which can be applied at any point in a particular climatic region.
- the server 100 associates a particular road segment with at least two prediction models selected from the models trained at step 202.
- the association is for example stored in a database 106 of the server 100.
- the models selected are models trained from observations on the ground obtained on road segments comparable to the road segment in question, that is to say segments which share at least one characteristic with the segment considered. These characteristics include, for example, the type of track, the type and state of wear of the coating, the immediate environment (forest, city, etc.), the topology and/or the climatic region as determined at step 201.
- the server can also select one or more generic models, applicable at any point of a territory regardless of a particular climatic zone.
- Such a model is for example trained from meteorological data and ground observations obtained without consideration of a particular climatic region.
- the server could in this way associate a seaside highway for which it does not have ground observations with a model trained on a highway in the same climatic region, a generic model and a model trained on a small seaside road.
- the models associated with said segment are selected so as to minimize the difference between an observed surface condition and a surface condition determined by a combination of the predictions made by the selected models.
- Step 203 of associating at least two models trained in step 202 with a road segment is repeated for all the road segments of a road network.
- the server 100 receives a request from the vehicle 102 traveling on the road network.
- the request includes at least one identifier of the road segment on which the vehicle is traveling, or geographic positioning data allowing the server to determine during a step 205, thanks to a digital map of the road network, the road segment on which the vehicle, for example a longitude and a latitude of the vehicle or of another location for which the vehicle wishes to know a surface weather condition.
- the request is for example a message conforming to a V2I (Vehicle To Infrastructure) communication protocol and transmitted to the server 100 via the cellular access network 103 and the communication network 101.
- V2I Vehicle To Infrastructure
- step 206 the server 100 makes a request to the database 106 to obtain the models associated in step 203 with the segment identified in step 205.
- the server interrogates the server 104 to obtain weather forecasts and/or observations concerning the weather cell in which the identified segment is located and applies this weather data to the prediction models associated with the segment. For this, the server extracts from the weather data the variables used to train the models, for example, atmospheric pressure, frequency, type and amount of precipitation, temperature, UV index, sunshine rate or cloud cover thickness.
- the server 100 thus obtains a plurality of surface weather conditions predicted from the models associated with the segment.
- step 208 the predictions thus obtained are combined to obtain a consolidated prediction of the surface weather conditions of the road segment.
- the predictions made by the models associated with the road segment are combined according to a conservative approach according to which a level of risk is associated with a surface condition capable of being predicted, the consolidated prediction being defined by the prediction associated with the highest risk.
- the prediction model is a classification model in which each class corresponds to a particular surface condition, for example "dry", icy", "snow" or "rain”.
- the consolidated prediction will correspond to the prediction associated with the highest risk for the vehicle, i.e. i.e. "icing".
- the predictions made by the models associated with the road segment are combined according to a majority approach according to which the consolidated prediction is defined by the class mainly predicted by the models associated with the road segment.
- the prediction model is a classification model in which each class corresponds to a particular surface condition, for example “dry”, “ice”, “snow” or “rain”.
- the consolidated prediction will correspond to the class mostly predicted by the selection of models associated with the segment, i.e. i.e. "dry”.
- the consolidated prediction is the prediction corresponding to the greatest risk.
- the consolidated prediction is defined by an average of the probabilities predicted by the models associated with the road segment.
- the prediction models are adapted to predict a probability of occurrence for different classes. The server 100 then calculates an average probability from the probabilities of occurrences predicted by the selected models.
- the server transmits to the vehicle 102 the surface condition consolidated during a step 209 in response to the request received during step 204.
- the models selected for a particular segment are inferred as soon as the inference is made possible by obtaining new weather data and the consolidated prediction is stored in association with the corresponding segment in the database 106.
- the server always has, for a particular segment, the latest surface conditions that can be predicted for the segment.
- Such an arrangement is advantageous when a large number of vehicles are circulating on the segment because it avoids inferring the models several times with identical data, and allows a vehicle to obtain a prediction with improved responsiveness.
- the models associated with a particular segment "on demand" that is to say upon receipt of a request from a vehicle, the calculation time is optimized for the segments uncrowded.
Landscapes
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Atmospheric Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Environmental Sciences (AREA)
- Automation & Control Theory (AREA)
- Environmental & Geological Engineering (AREA)
- Ecology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2109571A FR3127065B1 (fr) | 2021-09-13 | 2021-09-13 | Procédé de prédiction d’une condition météo de surface d’un segment routier |
| PCT/EP2022/073656 WO2023036621A1 (fr) | 2021-09-13 | 2022-08-25 | Procédé de prédiction d'une condition météo de surface d'un segment routier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4402666A1 true EP4402666A1 (fr) | 2024-07-24 |
Family
ID=78049441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22769592.1A Pending EP4402666A1 (fr) | 2021-09-13 | 2022-08-25 | Procédé de prédiction d'une condition météo de surface d'un segment routier |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250137804A1 (fr) |
| EP (1) | EP4402666A1 (fr) |
| FR (1) | FR3127065B1 (fr) |
| WO (1) | WO2023036621A1 (fr) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE0802098A1 (sv) * | 2008-10-06 | 2010-04-07 | Semcon Caran Ab | Osymmetriska strukturer, metod för att behandla insamlad data för att extrahera vägstatusinformation |
| SI2757539T1 (sl) * | 2013-01-22 | 2020-10-30 | Klimator Ab | Postopek in ureditev za zbiranje in obdelavo podatkov v zvezi s stanjem na cestah |
| US20140222321A1 (en) * | 2013-02-06 | 2014-08-07 | Iteris, Inc. | Traffic state estimation with integration of traffic, weather, incident, pavement condition, and roadway operations data |
| EP3206411B1 (fr) * | 2016-02-11 | 2020-10-07 | Volvo Car Corporation | Agencement et procédé permettant de prédire le frottement d'une route dans un réseau routier |
| US10837793B2 (en) * | 2018-06-12 | 2020-11-17 | Volvo Car Corporation | System and method for utilizing aggregated weather data for road surface condition and road friction estimates |
| FR3106112B1 (fr) * | 2020-01-13 | 2021-12-03 | Continental Automotive | Procédé et dispositif de prédiction adaptatif d’une caractéristique météo de surface d’un segment routier |
-
2021
- 2021-09-13 FR FR2109571A patent/FR3127065B1/fr active Active
-
2022
- 2022-08-25 EP EP22769592.1A patent/EP4402666A1/fr active Pending
- 2022-08-25 US US18/690,962 patent/US20250137804A1/en active Pending
- 2022-08-25 WO PCT/EP2022/073656 patent/WO2023036621A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3127065B1 (fr) | 2023-08-04 |
| US20250137804A1 (en) | 2025-05-01 |
| WO2023036621A1 (fr) | 2023-03-16 |
| FR3127065A1 (fr) | 2023-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR3113328A1 (fr) | Procédé et dispositif de prédiction d’une condition météorologie sur un réseau routier | |
| WO2021144158A1 (fr) | Procédé et dispositif de prédiction adaptatif d'une caractéristique météo de surface d'un segment routier | |
| US20080242315A1 (en) | Traffic data collection utilizing a cellular communication network and probe units | |
| EP3957104A1 (fr) | Procédé de prédiction d'une modification des conditions d'attachement d'un terminal à un réseau cellulaire | |
| EP3957028B1 (fr) | Procédé de prédiction d'une qualité de signal et/ou de service et dispositif associé | |
| WO2020016150A1 (fr) | Procédé de localisation d'un véhicule | |
| EP4402666A1 (fr) | Procédé de prédiction d'une condition météo de surface d'un segment routier | |
| WO2020201243A1 (fr) | Procédé de mise à jour d'une carte routière à partir d'un réseau de contributeurs | |
| EP1664833B1 (fr) | Procede pour detecter la presence ou l'absence d'un terminal mobile sur un chemin | |
| FR3115122A1 (fr) | Procédé et dispositif de pré-conditionnement de véhicules avec prédiction améliorée du risque de givrage | |
| FR3103305A1 (fr) | Procédé et dispositif de prédiction d’au moins une caractéristique dynamique d’un véhicule en un point d’un segment routier. | |
| FR3106686A1 (fr) | Procédé et dispositif de préchargement de données cartographiques | |
| WO2023066710A1 (fr) | Procédé de prédiction d'une condition de surface d'un segment routier | |
| WO2022078729A1 (fr) | Procede de selection d'informations a transmettre a un systeme embarque d'un vehicule et dispositif associe | |
| FR3130431A1 (fr) | Procédé de prédiction d’une condition de surface d’un segment routier | |
| US20250347522A1 (en) | Navigable custom routes | |
| FR3140507A1 (fr) | Détermination d’un itinéraire en fonction de la qualité de service d’un réseau de communication | |
| FR3155294A1 (fr) | Procédé et dispositif de détermination d’un itinéraire pour un véhicule électrique équipé de cellules photovoltaïques | |
| FR3157320A1 (fr) | Procédé et dispositif de contrôle d’un système de détermination d’une position d’un véhicule sur une route | |
| FR3158288A1 (fr) | Procédé et dispositif de contrôle d’accélération d’un véhicule électrique | |
| FR3150336A1 (fr) | Procédé de supervision des capacités de conduite autonome d’un ensemble de véhicules automobiles. | |
| FR3039342A1 (fr) | Procede et dispositif pour localiser des mobiles se deplacant en suivant une trajectoire predetermine | |
| FR3164292A1 (fr) | Procédé et dispositif de traitement pour le positionnement d’un objet sur une carte numérique cible embarquée dans un véhicule | |
| FR2910957A1 (fr) | Procede de navigation pour terminaux mobiles avec serveur centralise | |
| FR3110751A1 (fr) | Procédé d’estimation du trafic automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20240415 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: AUMOVIO GERMANY GMBH |