Method and device for controlling a display system with a view to providing warning that a low-water crossing is to be negotiated, for a vehicle

Abstract

The present invention relates to a method and device for controlling a display system of a vehicle. The presence of a zone containing a low-water crossing is detected as the vehicle is approaching and at a determined distance from the start or end of such a zone. Display of graphical content (40) in an augmented-reality format is induced in order to display this graphical content (40) on a display device (13), the graphical content (40) comprising an image (41) of a real scene located in front of the vehicle and a virtual graphical object (42) superposed on the image (41), a graphical representation of the virtual graphical object (42) being dependent on data relating to a calendar of the tides associated with the zone containing the low-water crossing.

Description

DESCRIPTION Title: Method and device for controlling a display system for warning a vehicle of submersible road crossing Technical field

[0001] The present invention claims priority from French application 2401477 filed on 15.02.2024, the content of which (text, drawings and claims) is incorporated herein by reference. The present invention relates to methods and devices for controlling an on-board display system in a vehicle, in particular but not exclusively a motor vehicle. The present invention also relates to a method and a display system or device for signaling a submersible roadway in a vehicle approaching such a submersible roadway. Technological background

[0002] To assist the driver of a vehicle, it is known to display information relating to the road environment in which the vehicle is traveling, for example on a display device of the vehicle or on a display screen of a mobile communication device such as a smartphone embedded in the vehicle. The display of such information is done for example via a human-machine interface (HMI) of a navigation system. Such a navigation system uses map data such as digital road maps indicating the roads of the road environment in which the vehicle is traveling, this map data being associated with or including additional data relating to the road environment such as the presence of places of interest such as parking lots or information on current traffic conditions.

[0003] Some information, particularly useful to the driver to ensure his safety as well as that of the passengers in the vehicle, is difficult to present to the driver. For example, information relating to road sections submersibles that the vehicle is required to travel through during a journey are difficult to represent on a map, for example.

[0004] To ensure the safety of the vehicle and its passengers, it is important to provide the driver with the information necessary to control the vehicle according to the situations encountered during a journey. Summary of the present invention

[0005] An object of the present invention is to solve at least one of the problems of the technological background described above.

[0006] Another object of the present invention is to better alert a driver of a vehicle of a risk associated with a submersible roadway.

[0007] Another object of the present invention is to improve the user experience with respect to information associated with a submersible roadway to which the vehicle is approaching.

[0008] According to a first aspect, the present invention relates to a method for controlling an on-board display system in a vehicle, the display system comprising a display device, the method comprising the following steps: - obtaining initial data representative of the presence of a submersible roadway on a section of road on which the vehicle is traveling; - receiving second data representative of a calendar of high tide and low tide times associated with a maritime zone including the submersible causeway, the calendar including information representative of tidal coefficients associated with high tides and low tides; - control of display of graphic content in augmented reality on the display device, the graphic content comprising an image of a real scene located in front of the vehicle acquired by a camera on board the vehicle and a virtual graphic object superimposed on the image, the virtual graphic object comprising a set of graphic objects representative of the submersible roadway, a graphic representation of the virtual graphic object being a function of the second data and of temporal information representative of a current instant.

[0009] Such a method makes it possible to visually alert a driver of a vehicle when the latter is approaching a submersible causeway, the alert being further adapted to the tide times and the tidal coefficients associated with these tides at the level of the maritime zone including the submersible causeway to which the vehicle is approaching. The use of augmented reality makes it possible to embed virtual objects on an image of the scene providing the driver with clear information on the presence of a risk zone, i.e. the submersible causeway, and on the reality of this risk by taking into account the tide coefficient and the time of the tide. This makes it possible to adjust the control of the vehicle to the particular situation encountered, with anticipation of the associated risks.

[0010] According to a variant, the virtual graphic object represents a gantry supporting at least a first graphic object representative of a road sign indicating a submersible roadway area, at least a second graphic object representative of a light signal and a third graphic object representative of a text display area.

[0011] According to yet another variant, the graphic representation of the virtual graphic object corresponds to: - a first graphic representation when the current instant belongs to a first time interval of determined duration centered on a low tide schedule and when a coefficient of a high tide temporally following the low tide is less than a threshold coefficient, the gantry being displayed with a first color according to the first graphic representation; - a second graphic representation when the current time belongs to the first time interval and when the high tide coefficient is greater than the threshold coefficient, the gantry being displayed with a second color different from the first color according to the second graphic representation; - a third graphical representation when the current instant belongs to a second time interval of determined duration centered on a high tide schedule, the gantry being displayed with a third color according to the third graphical representation, the third color being different from the first color and the second color; and - a fourth graphical representation when the current time belongs to a third time interval between the first interval and the second time interval, the portico being displayed with the second color according to the fourth graphical representation.

[0012] According to another variant, the at least one second graphic object is representative of a fixed light signal according to the first graphic representation and according to the second graphic representation, and the at least one second graphic object is representative of a flashing light signal according to the third graphic representation and according to the fourth graphic representation.

[0013] According to an additional variant, the text display area comprises a first piece of information representative of the current time, a second piece of information representative of a schedule of the upcoming high tide and a third piece of information representative of a high tide coefficient.

[0014] According to an additional variant, the at least one first graphic object is representative of a road sign indicating the start of a submersible roadway when the vehicle is approaching the start of the submersible roadway and the at least one first graphic object is representative of a road sign indicating the end of a submersible roadway when the vehicle is approaching the end of the submersible roadway.

[0015] According to another variant, the first data are determined from third data representative of geographical positions of the vehicle, fourth data representative of a map of a road environment in which the vehicle is traveling and fifth data representative of the location of submersible roads included in the road environment.

[0016] According to another variant, the method further comprises a step of receiving sixth data representative of activation or deactivation of a submersible road presence alert service from a human-machine interface on board the vehicle, the control of display of the graphic content being a function of the sixth data.

[0017] According to a second aspect, the present invention relates to a device for controlling an on-board display system in a vehicle, the device comprising a memory associated with a processor configured for implementing the steps of the method according to the first aspect of the present invention.

[0018] According to a third aspect, the present invention relates to a vehicle, for example of the automobile type, comprising a device as described above according to the second aspect of the present invention.

[0019] According to a fourth aspect, the present invention relates to a computer program which comprises instructions adapted for executing the steps of the method according to the first aspect of the present invention, in particular when the computer program is executed by at least one processor.

[0020] Such a computer program may use any programming language, and may be in the form of source code, object code, or intermediate code between source code and object code, such as in a partially compiled form, or in any other desirable form.

[0021] According to a fifth aspect, the present invention relates to a computer-readable recording medium on which is recorded a computer program comprising instructions for carrying out the steps of the method according to the first aspect of the present invention.

[0022] On the one hand, the recording medium can be any entity or device capable of storing the program. For example, the medium may include a storage medium, such as a ROM memory, a CD-ROM or a microelectronic circuit type ROM memory, or a magnetic recording medium or a hard disk.

[0023] Furthermore, this recording medium may also be a transmissible medium such as an electrical or optical signal, such a signal being able to be conveyed via an electrical or optical cable, by conventional or hertzian radio or by self-directed laser beam or by other means. The computer program according to the present invention may in particular be downloaded from a network such as the Internet.

[0024] Alternatively, the recording medium may be an integrated circuit in which the computer program is incorporated, the integrated circuit being adapted to perform or to be used in performing the method in question. Brief description of the figures

[0025] Other characteristics and advantages of the present invention will emerge from the description of the particular and non-limiting exemplary embodiments of the present invention below, with reference to the appended figures 1 to 7, in which:

[0026] [Fig. 1] schematically illustrates an environment of a vehicle, according to a particular and non-limiting exemplary embodiment of the present invention;

[0027] [Fig. 2] schematically illustrates a passenger compartment of the vehicle of FIG. 1, according to a particular and non-limiting exemplary embodiment of the present invention;

[0028] [Fig. 3] schematically illustrates a chronogram of the tides associated with the environment of Figure 1, according to a particular and non-limiting exemplary embodiment of the present invention;

[0029] [Fig. 4] schematically illustrates a display screen on board the vehicle of FIG. 1, according to a first particular and non-limiting exemplary embodiment of the present invention;

[0030] [Fig. 5] schematically illustrates a display screen on board the vehicle of FIG. 1, according to a second particular and non-limiting exemplary embodiment of the present invention;

[0031] [Fig. 6] schematically illustrates a device configured for controlling an on-board display system in the vehicle of FIG. 1, according to a particular and non-limiting exemplary embodiment of the present invention;

[0032] [Fig. 7] illustrates a flowchart of the different steps of a method for controlling an on-board display system in the vehicle of FIG. 1, according to a particular and non-limiting exemplary embodiment of the present invention. Description of examples of implementation

[0033] A method and a device for controlling an on-board display system in a vehicle will now be described in the following with joint reference to Figures 1 to 7. The same elements are identified with the same reference signs throughout the description which follows.

[0034] The terms "first(s)", "second(s)" (or "first(s)", "second(s)"), etc. are used in this document by arbitrary convention to identify and distinguish different elements (such as operations, means, etc.) implemented in the embodiments described below. Such elements may be distinct or correspond to a single element, depending on the embodiment.

[0035] According to a particular and non-limiting example of embodiment of the present invention, the control of a display system on board a vehicle is for example implemented by one or more computers of the vehicle, for example via one or more processors, or by one or more processors of a mobile communication device on board the vehicle, in particular when the display system is integrated into the mobile communication device.

[0036] For this purpose, first data representative of the presence of a submersible roadway on a portion of road on which the vehicle is traveling are obtained. The first data are for example obtained by analyzing one or more images acquired by a camera on board the vehicle and the detection in this or these images of objects representative of the presence of such an area (danger sign indicating a submersible roadway). According to another example, the first data are determined from third data representative of geographical positions of the vehicle, fourth data representative of a map of a road environment in which the vehicle is traveling and fifth data representative of the location of a set of submersible roadways included in the road environment.

[0037] Second data representative of a schedule of high tide and low tide times associated with a maritime area comprising the submersible causeway are received in a wireless communication mode, for example from a remote device such as a cloud server, for example a weather server. This second data also includes information representative of tidal coefficients associated with high and low tides.

[0038] The display of graphic content in augmented reality is controlled in such a way that this graphic content is displayed on a display device of the vehicle display system. The graphic content comprises an image of a real scene located in front of the vehicle, which image is acquired by a camera on board the vehicle (for example a camera of the vehicle or a camera of the mobile communication device) and a virtual graphic object displayed superimposed on the image. The virtual graphic object comprises a set of graphic objects representing the submersible roadway (or the risks associated with this submersible roadway) to which the vehicle is approaching. The virtual graphic object is represented according to a determined graphic representation which is a function of the second data, that is to say the time of high or low tides and the current time (or instant).

[0039] The first data includes data or information indicating, for example, the start and end of a submersible causeway.

[0040] In a maritime area subject to tides, a submersible causeway corresponds to a causeway or a portion of road which is passable at low tide, for a determined period around low tide, that is to say which can be used by vehicles at low tide because it is uncovered, and which is impassable at high tide, for a determined period around high tide, that is to say which cannot be used by vehicles at high tide because it is covered in whole or in part by water.

[0041] Such submersible causeways represent a risk for vehicles and their passengers, particularly when the tide is rising (phase of rising water after low tide until high tide): a vehicle using the submersible causeway when the causeway is not yet covered by water risks being blocked by the water without having reached the end of the submersible causeway, with no possibility of moving forward or backward, the causeway becoming submerged. as the water rises, until it reaches a maximum water height corresponding to high tide.

[0042] The water heights at low tide (minimum height) and high tide (maximum height) vary according to the tidal coefficients associated with these low and high tides, the difference in water height between high tide and low tide being called tidal range. The tidal coefficients are between 20 and 120.

[0043] Figure 1 schematically illustrates a vehicle 10 in an environment 1, according to a particular and non-limiting exemplary embodiment of the present invention.

[0044] Figure 1 illustrates a vehicle 10, for example a motor vehicle, in an environment 1, the environment 1 corresponding to a road environment in which the vehicle 10 moves and circulates.

[0045] The vehicle 10 corresponds, for example, to a vehicle with a thermal engine, with an electric motor(s) or even a hybrid vehicle with a thermal engine and one or more electric motors. The vehicle 10 thus corresponds, for example, to a land vehicle, for example a car, a truck, a bus.

[0046] According to the example of Figure 1, the vehicle 10 is traveling on a road or portion of road 110 comprising one or more traffic lanes and belonging to an area comprising a submersible roadway or road, the portion of road 110 opening onto an area 112 whose roadway is submersible, that is to say an area that can be covered by water for a determined duration around the time of high tide. The vehicle 10 is thus approaching a portion of submersible roadway 112, that is to say the submersible roadway 112 is downstream of the vehicle 10 (or in front of the vehicle 10) according to the direction of travel of the vehicle 10.

[0047] According to the example of Figure 1, the start of the submersible roadway 112 is materialized or indicated by a road sign 111 indicating a danger of submersion by water. Such a sign 111 corresponds to a danger sign with for example an exclamation mark and a text under the sign specifying the type danger (submersible road or pavement) or a danger type sign with a pictogram representing a vehicle submerged in water.

[0048] According to a particular exemplary embodiment, the vehicle 10 carries a communication system configured to communicate with one or more remote devices or servers 103 via a wireless communication network infrastructure.

[0049] The remote server(s) 103 each correspond, for example, to a server of the “cloud” 100 (or “cloud” in French). The wireless communication infrastructure comprises, for example, a set of communication devices of the LTE (Long Term Evolution) cellular network antenna type 102 4G or 5G. According to an alternative embodiment, the communication devices belonging to the wireless communication infrastructure correspond to UBR (Roadside Unit).

[0050] The communication system of the vehicle 10 comprises, for example, one or more communication antennas connected to a telematic control unit, called TCU (Telematic Control Unit), itself connected to one or more computers of the on-board system of the vehicle 10. The antenna(s), the TCU unit and the computer(s) form, for example, a multiplexed architecture for the provision of various services useful for the proper functioning of the vehicle and for assisting the driver and / or passengers of the vehicle in controlling the vehicle 10.The computer(s) and the TCU communicate and exchange data with each other via one or more computer buses, for example a communication bus of the data bus type CAN (from the English "Controller Area Network" or in French "Réseau de contrôles"), CAN FD (from the English "Controller Area Network Flexible Data-Rate" or in French "Réseau de contrôles à débit de données flexible"), FlexRay (according to the ISO 17458 standard) or Ethernet (according to the ISO / IEC 802-3 standard).

[0051] According to a particular embodiment, the vehicle 10 has a navigation and geolocation system, also called a GNSS system (Geolocation and Navigation by a Satellite System), for example a GPS type system (of English: "Global Positioning System" or in French "Geopositioning System by Satellites") or Galileo. According to this embodiment, the vehicle 10 carries a geolocation system receiver allowing the vehicle 10 to obtain third data representative of its geographical position at any time, for example in the form of GPS coordinates (latitude and longitude), via a satellite link with a set of satellites 101.

[0052] The navigation system of the vehicle 10 is for example connected via an OTA (Over The Air) type link to receive mapping data and data, called first data, relating to the presence of one or more submersible roads or pavements, for example as the vehicle 10 moves, via the communication system of the vehicle 10. According to a variant, such data is recorded in a memory of the vehicle 10 associated with the navigation system, the recorded data being for example updated via the OTA link (for example periodically or when the mapping data and / or the level crossing and barrier data have been updated on the remote device 103).

[0053] According to an alternative embodiment, the vehicle 10, for example the navigation system, further receives data, called second data, relating to a tidal calendar associated with the maritime zone comprising the submersible causeway 112. Such a calendar indicates the times of successive low and high tides with the tidal coefficients associated with each high tide and each low tide over a determined time period (for example over the next month, the next 3 or 6 months or over the current year). These second data are for example stored in a memory of the vehicle 10 and updated regularly (for example every month, every 3 or 6 months or even every year).According to a variant, the second data only indicate the time of the current tide and the time of the next upcoming tide (considering the current instant, indicating whether it is a high or low tide, the associated time and the associated tidal coefficient) for only the submersible causeway 112 which the vehicle 10 is approaching, knowing the current time and the current geographical position of the. vehicle 10. The second data is received from a remote device of the “cloud” server type such as the remote device 103.

[0054] According to another particular embodiment, the vehicle 10 carries a mobile communication device, such as a smartphone or a tablet, such a wireless communication device being for example arranged on a support fixed to an element of the passenger compartment of the vehicle 10 so that the display screen of the mobile communication device is visible to the driver when the latter is driving the vehicle 10. According to such an embodiment, the mobile communication device carries a navigation and geolocation system, also called a GNSS (Geolocation and Navigation by a Satellite System) system, for example a GPS (Global Positioning System) type system, for example installed on the communication device in the form of a mobile application.Such an embodiment allows the driver of the vehicle 10 to use the navigation system and the display system of the mobile communication device, for example when the vehicle 10 does not include a navigation system or when the driver prefers to use the navigation system of the mobile communication device instead of the navigation system of the vehicle 10. The mobile communication device is advantageously connected in wireless communication with the remote device(s) 103 via the wireless network infrastructure, for example to receive mapping data as well as data relating to submersible roadways, or updates of such data recorded in the memory of the mobile communication device. The mobile communication device is for example connected in wireless communication to the vehicle 10, for example via a wireless link of the Bluetooth® or Wifi® type.

[0055] The remote server 103 is for example configured to send data relating to the road infrastructure such as: - fourth mapping data, for example fourth data representative of road maps, and / or - fifth data representative of one or more submersible causeways, for example data representative of the coordinates of the start of each submersible causeway and end of the submersible causeway (or the length of the submersible causeway, for example indicated in meters) or location data of this or these submersible causeways on roads with the start and end of the submersible causeway.

[0056] According to a particular embodiment illustrated in Figure 2, the vehicle 10 has a display system comprising a display device or screen 13 and a computer configured to control the display of content(s) of a graphical MMI on the touch screen 13. The computer corresponds for example to the computer of the infotainment system, called the IVI computer (from the English “In-Vehicle Infotainment” or in French “Infodivertissement embargo”) of the vehicle 10.

[0057] According to an alternative embodiment, the display system of the vehicle 10 comprises one or more other screens, for example a screen of a device or system called a head-up display corresponding for example to a transparent or semi-transparent blade arranged in such a way that a driver seated in the seat 16 sees the content displayed or projected on the transparent blade when the driver drives the vehicle 10, or a display screen 15 called a handset or dashboard generally arranged in an area behind the steering wheel 14 in the dashboard 11.

[0058] The screen 13 is for example associated with a touch interface and corresponds for example to a screen of the LCD type (from the English “Liquid Crystal Display” or in French “Display à cristals liquide”), for example of the TFT type (from the English “Thin-Film Transistor” or in French “Transistor en film mince”), or OLED type (from the English “Organic Light-Emitting Diode” or in French “Diode électroluminescente biologique”).

[0059] The screen 13 is configured to display content intended for the driver and passengers of the vehicle. The screen 13 is also configured to allow the driver and / or passengers of the vehicle 10 to interact with one or more systems embedded in the vehicle 10 via a human machine interface (HMI) displayed on the screen 13. For example, the screen 13 is configured to interact with the IVI system and / or a navigation system of the vehicle 10.

[0060] According to a particular embodiment, the screen 13 is not integrated into the passenger compartment of the vehicle but corresponds to a screen of a mobile communication device (smartphone, tablet), connected in communication, for example wirelessly, with the on-board system of the vehicle 10.

[0061] The vehicle 10 also carries, for example, one or more cameras, for example a camera 12 corresponding to a front camera (also called a windshield camera). Such a camera 12 is arranged in the passenger compartment of the vehicle 10 under the windshield and at the top and in the middle of this windshield. Such a front camera 12 has a field of vision corresponding to the space located in front of the vehicle 10 in the direction of travel of the vehicle 10. Such a camera 12 is thus configured for the acquisition of image data representative of the real scene located in front of the vehicle 10, in the direction of travel of the vehicle 10.

[0062] The camera 12 comprises, for example, the following elements: - a photosensitive sensor corresponding for example to a matrix of photoreceptors associated for example with a Bayer filter; - an optical assembly arranged in front of the sensor with respect to the scene to be acquired by the sensor, the optical assembly comprising for example an arrangement of one or more lenses; and - optionally one or more calculators associated with memory and configured for processing images acquired by the sensor.

[0063] According to an alternative embodiment, the camera corresponds to a camera of the mobile communication device on board the vehicle 10, if applicable. The camera of the mobile communication device is also configured for the acquisition of image data representative of the actual scene located in front of the vehicle 10, depending on where the mobile communication device is arranged in the passenger compartment of the vehicle 10.

[0064] A process for controlling an on-board display system in the vehicle 10 is advantageously implemented by one or more processors of the display system, for example by a computer of an on-board system of the vehicle 10 such as than the IVI system or the navigation system or by a processor of the mobile communication device. The on-board display system thus corresponds to a display device integrated into the vehicle 10 or to a display system of a mobile communication device itself embedded in the vehicle 10.

[0065] In a first operation of the process, first data representative of the presence of a submersible roadway 112 onto which a portion of road 110 on which the vehicle 10 is traveling opens are obtained, for example received from another device (for example another computer of the vehicle 10) or determined from other data.

[0066] According to a first exemplary embodiment, the presence of the submersible roadway 112 is detected or determined by crossing third data representative of geographical positions of the vehicle 10, fourth data representative of a map of the road environment 1 in which the vehicle 10 is traveling and fifth data representative of the location of a set of submersible roadways included in the road environment 1.

[0067] According to an alternative embodiment, the fifth data received are only representative of the submersible roadway 112 which the vehicle 10 is approaching, these fifth data being received knowing the current position of the vehicle 10 (via the third data) and the mapping (via the fourth data).

[0068] According to another variant, the fifth data form part of the fourth data, that is to say that the mapping data includes the position or location of the submersible causeway(s).

[0069] The third data are for example received from a receiver of a geolocation system 101. The fourth and fifth data are for example received from a memory and / or from a remote device such as a server 103 configured to make such data available to navigation systems of so-called connected vehicles and / or mobile navigation applications of mobile communication devices.

[0070] The fourth and fifth data received correspond for example to data relating to the road environment in which the vehicle 10 is traveling at each instant, these fourth and fifth data varying as the vehicle 10 moves in its environment 1. For example, the fourth and fifth data relate to an area surrounding the vehicle 10, for example over a radius equal to a few kilometers or a few hundred meters.

[0071] According to a second exemplary embodiment, the presence of the submersible roadway 112 is detected or determined by analyzing image data of the scene located in front of the vehicle 10 acquired by the camera 12 or by a camera of a traffic sign recognition system of the vehicle 10, as the vehicle 10 moves on the road 110.

[0072] The analysis of image data comprises the detection and recognition of determined objects, such as a road sign 111 indicating the presence of a submersible roadway. When such an object is detected in one or more acquired images, the presence of a submersible roadway 112 is detected and the first data is generated, then transmitted to the computer implementing the process by the computer controlling the image analysis system.

[0073] The detection of the submersible roadway 112 is for example obtained when the vehicle 10 arrives at a determined distance from the start of such a submersible roadway 112, for example when the vehicle 10 is located 50, 100, 200 or 500 m from the start of the submersible roadway 112 (the start of the zone being for example materialized by the presence of the sign 111 or indicated in the fifth data). The detection distance corresponds for example to a fixed parameter of the system or to a parameter adjustable by a user of the system, for example by the driver of the vehicle 10.

[0074] In a second operation of the process, second data representative of a schedule of high tide and low tide times associated with a maritime area comprising the submersible causeway are received in a wireless communication mode, for example in a communication mode of Y1 type 12V (from the English “Infrastructure-to-Vehicle” or in French “Infrastructure to vehicle”) and / or via a wireless connection using a 4G or 5G cellular network.

[0075] Such a calendar includes the time of each high tide and low tide in a sequence of high and low tides occurring alternately, for example, for each day of a time period of fixed duration (e.g., 3, 6, or 12 months). The calendar further includes the tidal coefficient associated with each high tide and each low tide.

[0076] The second data is received from a remote server such as the server 103 configured to store and transmit the data relating to the tides for a given maritime zone or geographical zone (for example France, Europe or the Atlantic coast of France, the Channel, the Mediterranean, etc.) or for a plurality of maritime or geographical zones, and in particular the data relating to the maritime zone comprising the submersible causeway 112 which the vehicle 10 is approaching.

[0077] The second data are received automatically by the vehicle 10, for example at regular intervals, for example every 3, 6 or 12 months depending on the duration of the time period of the received calendar, the second data then being stored in the memory of the vehicle 10 (or of the mobile communication device depending on the implementation mode). According to another example, the second data are received automatically and they only include the tidal information relating to the submersible causeway 112 which the vehicle 10 is approaching for a time period around the current instant corresponding to the time and day at which the vehicle 10 is approaching the submersible causeway 112.According to this other example, the vehicle 10 transmits for example its geographical location at regular intervals and the server 103, detecting the presence of the vehicle 10 approaching the submersible causeway 112, automatically transmits the second data relating to the tides in this zone, in particular around the time instant (called current instant) at which the vehicle 10 is approaching the submersible causeway 112. According to yet another example, the second data are transmitted by the server 103. remote to the vehicle 10 following the transmission from the vehicle 10 to the remote server of a request to receive the second data, the request comprising for example the geographic position data of the vehicle 10 at the time of transmission of the request so that the remote server transmits in return the second data for the area comprising the position of the vehicle 10.

[0078] In a third operation of the process, the display of graphic content in augmented reality is controlled so that this graphic content is displayed on a display device, for example the screen 13.

[0079] The display control is triggered by the detection of the presence of the submersible roadway 112 materialized by obtaining the first data at the first operation of the process.

[0080] The graphic content advantageously includes: - an image of the actual scene located in front of the vehicle 10 acquired by a camera on board the vehicle 10 such as the camera 12; and - a virtual graphic object displayed superimposed on the image, the virtual graphic object comprising a set of graphic objects representative of the submersible causeway and the associated risks, a graphic representation of the virtual graphic object being a function of the second data and of temporal information representative of the current instant (corresponding for example to the instant (day and time) of detection of the presence of the submersible causeway 112), that is to say of the time of the current tide at the current instant (low tide or high tide), of the time of the next tide temporally following the current tide (high tide if the current tide is a low tide and low tide if the current tide is a high tide) and / or the tidal coefficients associated with the current tide and the next tide.

[0081] Display control includes rendering of the graphical content, such rendering corresponding to a set of operations performed by one or more processors on the pixels of the image to compose the graphical content. For example, rendering consists of associating pixel data (for example, color data expressed in a space of type RGB (from the English “Red, Green, Blue” or in French “rouge, vert, bleu”)) associated with the virtual graphic object.

[0082] The virtual graphic object (and the graphic objects that this virtual graphic object comprises) corresponds to a graphic object obtained by image synthesis, the virtual graphic object being superimposed on the image at a determined location, for example at a determined distance from the point of view associated with the image, that is to say at a location situated at a determined distance from the point of view of the camera 12 for example. Thus, the pixels of the first image at the location of the incrustation of the virtual graphic object in the image are replaced by the pixels defining the virtual graphic object.

[0083] Figures 4 and 5 each illustrate an example of the result of such a rendering of the virtual graphic object, i.e. the display of a graphic content 40, 50 on the screen 13 with the virtual graphic object 42, 52 according to different graphic representations.

[0084] Each virtual graphic object 42 or 52 represents a gantry supporting at least a first graphic object 421, 521 representative of a road sign indicating a submersible roadway area, at least a second graphic object 422, 522 representative of a light signal and a third graphic object 423, 523 representative of a text display area.

[0085] In Figure 4, the graphic content 40 thus displayed results from the overlay of a virtual graphic object 42, for example a 3-dimensional (3D) graphic object, on an image 41 whose content represents the real scene that the driver sees (at least partially) through the windshield of the vehicle 10 at the time of acquisition of the image 41 (or with a slight time shift necessary for the composition of the graphic content 40, of the order of a few hundred milliseconds for example).

[0086] The rendering result thus corresponds to so-called augmented reality content (noted RA, or AR in English for “Augmented Reality”) in that this content mixes content representing a real environment (acquired by a camera) with digital virtual content obtained by computer.

[0087] The graphic content 40 varies depending on the movement of the vehicle 10 on the roadway of the portion of road 110, as the vehicle 10 moves on the roadway, via: - the displayed image 41 which varies as the image data received from the camera 12 changes depending on the point of view of the camera 12 which evolves and varies depending on the movement of the vehicle 10, the images being for example refreshed / displayed at a frequency of 24, 48 or 50 images per second; and - an adjustment of the representation of the virtual graphic object 42 as the vehicle 10 moves, the virtual graphic object 42 being for example embedded in the image at a constant distance from the point of view of the camera 12 or the representation of the virtual graphic object 42 being modified as the vehicle moves to provide the driver with the illusion that the vehicle 10 is approaching the virtual graphic object 42, the adjustment of the graphic representation making it possible to adapt the perspective according to the evolution of the point of view of the graphic content 40 which varies with the movement of the vehicle 10, until the vehicle 10 virtually passes under the virtual graphic object 42 which then disappears from the graphic content 40.

[0088] According to the example of Figure 4, the virtual graphic object 42 is representative of a gantry supporting one or more first graphic objects or pictograms 421 (two first graphic objects 421 according to the particular example of Figure 4) each representing a sign indicating a zone with a submersible roadway, or the start of such a submersible roadway, one or more second graphic objects or pictograms 422 (two second graphic objects 422 according to the particular example of Figure 4) each representing a light signal (fixed or flashing according to different cases, as explained below) and a third graphic object 423 representing a text display area for displaying textual information relating in particular to the current tide.

[0089] According to the particular example of Figure 4, the third graphic object 423 is displayed in the middle of the upper upright of the gantry, the third graphic object 423 is surrounded on the left and right by a second graphic object 322 arranged on the upper upright of the gantry and arranged in the middle of the first two objects graphics 321, the second graphic objects 422 being themselves surrounded by the first graphic objects 421 arranged on the upper upright of the gantry.

[0090] Of course, the virtual graphic object 42 is not limited to such a representation but extends to any virtual graphic representation, for example to a gallows or a lateral post supporting the first, second and third graphic objects 421, 422, 423, or to a line drawn on the ground with the first, second and third graphic objects superimposed. According to another example, the virtual graphic object only comprises the first and third graphic objects 421, 423.

[0091] The graphic representation of the virtual graphic object 42 being a function of the second data, this graphic representation corresponds for example to one of the following graphic representations: - a first graphic representation when the current instant belongs to a first time interval 301 of determined duration centered on a low tide time 31 and when a coefficient of the high tide 32 temporally following the low tide 31 is lower than a threshold coefficient, the gantry being displayed with a first color (for example the color green) according to the first graphic representation: the first graphic representation indicates that crossing the submersible causeway is possible and authorized because the tide is low and that the high tide which will follow the current low tide will have a coefficient lower than the threshold coefficient; - a second graphic representation when the current instant belongs to the first time interval and when the high tide coefficient 32 is greater than the threshold coefficient, the gantry being displayed with a second color (for example the orange color) different from the first color according to the second graphic representation: the second graphic representation indicates that crossing the submersible roadway is possible and authorized because the tide is low, the second color making it possible to alert the driver of the vehicle 10 to a possible danger or risk associated with the risk of the next high tide with a high coefficient (i.e. greater than the threshold coefficient); - a third graphic representation when the current moment belongs to a second time interval of determined duration centered on a tide schedule high 32 temporally following the low tide 31, the gantry being displayed with a third color (for example the color red) according to the third graphic representation, the third color being different from the first color and the second color: the third graphic representation indicates that crossing the submersible causeway is impossible and prohibited because the tide is high;and - a fourth graphic representation when the current time belongs to a third time interval between the first interval and the second time interval, the gantry being displayed with the second color according to the fourth graphic representation: the fourth graphic representation indicates that crossing the submersible causeway is possible but dangerous because the tide is rising and there is a risk that the vehicle 10 will be blocked by the water while crossing the submersible causeway 112, regardless of the tidal coefficient.;

[0092] The threshold coefficient is for example equal to 70, the tidal coefficients lower than the threshold coefficient corresponding to the neap tide coefficients and the tidal coefficients higher than the threshold coefficient corresponding to the spring tide coefficients. In another example, the threshold coefficient is equal to 80.

[0093] According to an optional embodiment, the virtual graphic object 42 further comprises a fourth graphic object 424 representing for example a colored cross corresponding to the third color, this fourth graphic object being displayed inside the gantry to explicitly indicate that the gantry must not be crossed, the submersible causeway 112 being impassable at high tide (that is to say during the second time interval 302 associated with this high tide).

[0094] The text display area 423 comprises a first piece of information representative of the current instant (for example a text of the type: “It is HH h MM” with 'HH' the hour and 'MM' the minutes), a second piece of information representative of a time of the high tide, in progress or to come after the current low tide (for example a text of the type “high tide: HH h MM” with 'HH' the hour and 'MM' the minutes) and a third piece of information representative of a tidal coefficient of the high tide, current or future (for example a text of the type “coefficient: CC” with 'CC' the value of the tidal coefficient).

[0095] The color of the text is for example identical regardless of the graphic representation of the virtual graphic object 42. According to a variant, the color of the text corresponds to the color of the portico according to the graphic representation of the virtual graphic object 42.

[0096] Figure 3 illustrates a time diagram of a sequence of low and high tides following each other in time, according to a particular exemplary embodiment.

[0097] Figure 3 illustrates in particular the first 301, second 302 and third 303 time intervals described previously.

[0098] Figure 3 thus illustrates a time sequence comprising a low tide 31 followed in time by a high tide 32, which high tide 32 is followed by a low tide 33, which low tide 33 is also followed by another high tide not illustrated, and so on.

[0099] Each tide (high or low) is separated from the tide (low or high, respectively) which precedes or follows it by a time interval whose duration varies according to the day and which is, for example, equal to a duration between 4 and 7 hours.

[0100] The first time interval 301 is associated with the low tide 31, the first time interval 301 being for example of a determined duration and temporally centered on the time of the low tide 31 (that is to say the time at which the water height is the lowest, this minimum water height depending on the tidal coefficient associated with this low tide 31). The first time interval 301 is between a lower limit 311 (at a time distance <5t from the time of the low tide 31 being for example 1h30 or 2h) and an upper limit 312 (at the time distance <5t from the time of the low tide 31 being for example 1h30 or 2h, respectively). Thus, if tsi corresponds to the time of low tide 31, then the time of the lower bound 311 is tsn = tsi - ôt, with <5t equal to 1 h 30, 2 h or 2 h 30 for example. Similarly, the time of the upper bound 312 is tsi2 = tsi + <5t and the duration of the first time interval 301 is 2*5t. The value of 5t of the first time interval 301 is for example a function of the tidal coefficient of low tide 31.

[0101] The second time interval 302 is associated with the high tide 32 temporally following the low tide 31 (the high tide 32 also being called the next high tide in relation to the low tide 31), the second time interval 302 being for example of a determined duration and temporally centered on the time of the low tide 32 (that is to say the time at which the water height is the highest, this maximum water height depending on the tidal coefficient associated with this high tide 32). The second time interval 302 is between a lower limit 321 (at a time distance 5t from the high tide time 32 being for example 1 h 30 or 2 h, this value of 5t being equal to or different from the value of 5t associated with the first time interval 301) and an upper limit 322 (at the time distance 5t from the high tide time 32 being for example 1 h 30 or 2 h, respectively).Thus, if t32 corresponds to the time of high tide 32, then the time of the lower bound 321 is t32i = t32 - ôt, with 5t equal to 1 h 30, 2 h or 2 h 30 for example. Similarly, the time of the upper bound 322 is t322 = t32 + ôt and the duration of the second time interval 302 is 2 * 5t. The value of 5t of the second time interval 302 is for example a function of the tidal coefficient of high tide 32.

[0102] The third time interval 303 corresponds to the time interval between the upper limit 312 of the first time interval 301 and the lower limit 321 of the second time interval 302. The duration of this third time interval 303 is a function of the duration between tsi and t32, of the value of 5t of the first time interval 301 and of the value of 5t of the second time interval 302. The third time interval 303 is associated with a period of the tide called rising tide connecting the low tide period (defined by the first time interval 301) and the high tide period (defined by the second time interval 302), the water height increasing during the rising tide.

[0103] Similarly, a fifth time interval 305 is associated with low tide 33 temporally following high tide 33. The fifth time interval 305 is defined in the same way as the first time interval 301. associated with low tide 31, with a lower bound 331 and an upper bound 332 at a time distance <5t from the time tss of low tide 33. A fourth time interval 304 is defined as corresponding to the time interval between the upper bound 322 of the second time interval 302 and the lower bound 331 of the fifth time interval 305. The duration of this fourth time interval 304 is a function of the duration between t32 and tss, of the value of <5t of the second time interval 302 and of the value of <5t of the fifth time interval 305. The fourth time interval 304 is associated with a period of the tide called falling tide connecting the high tide period (defined by the second time interval 302) and the following low tide period (defined by the fifth time interval 305), the water height decreasing during the tide descending.

[0104] Other colors can of course be used, such as blue for the first color or yellow for the second color.

[0105] According to an alternative embodiment, the light signal is fixed or flashing according to the graphic representation of the virtual graphic object 42. According to this alternative, each second graphic object 422 is representative of a fixed light signal according to the first graphic representation and according to the second graphic representation, and each second graphic object 422 is representative of a flashing light signal according to the third graphic representation and according to the fourth graphic representation.

[0106] The flashing light signal is used to draw the driver's attention to a situation requiring increased vigilance, for example when: - the tide is high and the submersible causeway 112 is covered with water, corresponding to the second time interval 302, and - when the sea rises, with a risk that roadway 112 becomes submerged while vehicle 10 has entered it, corresponding to the third time interval 303.

[0107] Figure 5 illustrates an example of the result of a rendering of the virtual graphic object 52, that is to say the display of a graphic content 50 on the screen 13 with the virtual graphic object 52 embedded in superposition of an image 51 of the real scene.

[0108] Thus, according to the example of figure 5, the graphic representation of the virtual graphic object 52 is similar to that of the virtual graphic object 42 described with reference to figure 4.

[0109] The graphic content 50 is displayed on the screen 13 when the vehicle 10 is approaching the end of the submersible roadway 112, when the vehicle 10 is at a determined distance from the end of the submersible roadway 112, for example 50, 100, 200 or 500 m from the end of the submersible roadway 112.

[0110] The virtual graphic object 52 is representative of a gantry supporting one or more first graphic objects or pictograms 521 (two first graphic objects 521 according to the particular example of FIG. 5) each representing a traffic sign indicating a zone with a submersible roadway, or the end of such a submersible roadway (the pictogram 521 corresponding to the pictogram 421 with a bar across this pictogram 421 to indicate the end of the zone concerned by the danger indicated by the sign), one or more second graphic objects or pictograms 422 (two second graphic objects 422 according to the particular example of FIG. 5, identical to those of FIG. 4) each representing a light signal (fixed or flashing according to different cases, as explained previously) and a third graphic object 423 representing a text display area for displaying textual information relating in particular to the current tide,the third graphic object 423 being identical to that of figure 4.,

[0111] The graphical representation of the virtual graphical object 52 varies according to the second data, the graphical representations taken by the virtual graphical object 52 being identical to those taken by the virtual graphical object 42 described previously with regard to FIG. 4 and according to the same conditions, that is to say the first, second, third and fourth graphical representations.

[0112] The end of the display of the virtual graphic object 42 or 52 is controlled so that the display of this virtual graphic object 42 or 52 on the screen ceases as soon as the vehicle crosses the start or the end, respectively, of the submersible roadway 112 (the crossing being detected for example from the geographical coordinates of the vehicle 10 and the first data).

[0113] According to another particular embodiment, the display control of the graphic content is a function of sixth data representative of activation or deactivation of a submersible roadway zone alert service.

[0114] According to this other particular embodiment, the sixth data are for example received from a human-machine interface (HMI) on board the vehicle 10. The sixth data are for example generated following an action by a user activating or deactivating the submersible roadway zone alert service, for example via the touch interface associated with the screen 13.

[0115] The submersible roadway zone alert service, when activated, causes the generation or rendering of graphic contents 40, 50 when the vehicle 10 is approaching the start or end of a submersible roadway zone and then the display of these graphic contents 40, 50 on the screen 13.

[0116] Conversely, when the submersible roadway area alert service is disabled, the rendering and display of graphic contents 40, 50 are disabled and inoperative.

[0117] According to yet another variant, other virtual graphic objects are for example added to the graphic content 40, 50, for example when the navigation system is used in a guidance mode (following a route calculated by the navigation system), these other virtual graphic objects representing for example guidance instructions (for example arrows embedded on the road to materialize the route to follow) to indicate to the driver the route to follow.

[0118] The display of the graphic contents 40, 50 is controlled and implemented whether the navigation system is used in a guidance mode or not.

[0119] Such a process allows to maintain a visualization and a user experience of the navigation module in augmented reality format, without needing to add a pop-up window type message which pollutes the scene of the navigation module in augmented reality. The display of such a pop-up window requires an action from a user (for example the driver) to close this same window and return to the mode of augmented reality navigation, which represents a safety risk for the vehicle 10.

[0120] Figure 6 schematically illustrates a device 6 configured for controlling a display system on board a vehicle, for example the vehicle 10, according to a particular and non-limiting exemplary embodiment of the present invention. The device 6 corresponds for example to a device on board the vehicle 10, for example a computer, or to a device or unit of a mobile communication device.

[0121] The device 6 is for example configured for the implementation of the operations described with regard to figures 1 to 5 and / or the steps of the method described with regard to figure 7. Examples of such a device 6 include, but are not limited to, on-board electronic equipment such as an on-board computer of a vehicle, an electronic calculator such as an ECU (“Electronic Control Unit”), a smartphone, a tablet, a laptop. The elements of the device 6, individually or in combination, can be integrated in a single integrated circuit, in several integrated circuits, and / or in discrete components. The device 6 can be produced in the form of electronic circuits or software (or computer) modules or even a combination of electronic circuits and software modules.

[0122] The device 6 comprises one (or more) processor(s) 60 configured to execute instructions for carrying out the steps of the method and / or for executing the instructions of the software(s) embedded in the device 6. The processor 60 may include integrated memory, an input / output interface, and various circuits known to those skilled in the art. The device 6 further comprises at least one memory 61 corresponding for example to a volatile and / or non-volatile memory and / or comprises a memory storage device which may comprise volatile and / or non-volatile memory, such as EEPROM, ROM, PROM, RAM, DRAM, SRAM, flash, magnetic or optical disk.

[0123] The computer code of the embedded software(s) comprising the instructions to be loaded and executed by the processor is for example stored in the memory 61.

[0124] According to various particular and non-limiting embodiments, the device 6 is coupled in communication with other similar devices or systems and / or with communication devices, for example a TCU (from the English “Telematic Control Unit” or in French “Telematic Control Unit”), for example via a communication bus or through dedicated input / output ports.

[0125] According to a particular and non-limiting exemplary embodiment, the device 6 comprises a block 62 of interface elements for communicating with external devices. The interface elements of the block 62 comprise one or more of the following interfaces: - RF radio frequency interface, for example Wi-Fi® type (according to IEEE 802.11), for example in the 2.4 or 5 GHz frequency bands, or Bluetooth® type (according to IEEE 802.15.1), in the 2.4 GHz frequency band, or Sigfox type using UBN (Ultra Narrow Band) radio technology, or LoRa in the 868 MHz frequency band, LTE (Long-Term Evolution), LTE-Advanced; - USB interface (from the English “Universal Serial Bus” or “Universal Serial Bus” in French); - HDMI interface (from the English “High Definition Multimedia Interface” or “High Definition Multimedia Interface” in French); - LIN interface (from the English “Local Interconnect Network”).

[0126] According to another particular and non-limiting exemplary embodiment, the device 6 comprises a communication interface 63 which makes it possible to establish communication with other devices (such as other computers of the on-board system) via a communication channel 630. The communication interface 63 corresponds for example to a transmitter configured to transmit and receive information and / or data via the communication channel 630. The communication interface 63 corresponds for example to a wired network of the CAN type (from the English “Controller Area Network” or in French “Network of controllers”), CAN FD (from the English “Controller Area Network Flexible Data-Rate” or in French “Flexible Data Rate Controller Network”), FlexRay (standardized by the ISO 17458 standard) or Ethernet (standardized by the ISO / IEC 802-3 standard).

[0127] According to a particular and non-limiting exemplary embodiment, the device 6 can provide output signals to one or more external devices, such as a display screen 640, touch-sensitive or not, one or more speakers 650 and / or other peripherals 660 (projection system) via output interfaces 64, 65 and 66 respectively. According to a variant, one or other of the external devices is integrated into the device 6.

[0128] Figure 7 illustrates a flowchart of the different steps of a method for controlling a display system on board a vehicle, for example the vehicle 10, according to a particular and non-limiting exemplary embodiment of the present invention. The method is for example implemented by a device on board the vehicle 10, by a mobile communication device or by the device 6 of Figure 6.

[0129] In a first step 71, first data representative of the presence of a submersible roadway on a portion of road on which the vehicle is traveling are obtained.

[0130] In a second step 72, second data representative of a calendar of high tide and low tide times associated with a maritime zone comprising the submersible causeway are received, the calendar comprising information representative of tidal coefficients associated with the high tides and low tides.

[0131] In a third step 73, the display of graphic content in augmented reality is controlled so that this graphic content is displayed on a display device of the vehicle, the graphic content comprising an image of a real scene located in front of the vehicle acquired by a camera on board the vehicle and a virtual graphic object superimposed on the image, the virtual graphic object comprising a set of graphic objects representative of the submersible roadway, a graphic representation of the virtual graphic object being a function of the second data.

[0132] According to a variant, the variants and examples of the operations described in relation to one of figures 1 to 5 apply to the steps of the method of figure 7.

[0133] Of course, the present invention is not limited to the exemplary embodiments described above but extends to a method for displaying graphic content in augmented reality which would include secondary steps without thereby departing from the scope of the present invention. The same would apply to a device configured for the implementation of such a method.

[0134] The present invention also relates to a vehicle, for example an automobile or more generally an autonomous land-based motor vehicle, comprising the device 6 of Figure 6 or a display system comprising the device 6 of Figure 6 communicatively connected to a screen 13.

Claims

CLAIMS 1. Method for controlling an on-board display system in a vehicle (10), said display system comprising a display device (13), said method comprising the following steps: - obtaining (71) first data representative of the presence of a submersible roadway (112) on a portion of road (110) on which said vehicle (10) is traveling; - receiving (72) second data representative of a calendar of high tide and low tide times associated with a maritime zone comprising said submersible causeway (112), said calendar comprising information representative of tidal coefficients associated with said high tides and low tides; - display control (73) of graphic content (40; 50) in augmented reality on said display device (13), said graphic content (40; 50) comprising an image (41; 51) of a real scene located in front of said vehicle (10) acquired by a camera (12) on board said vehicle (10) and a virtual graphic object (42; 52) superimposed on said image (41; 51), said virtual graphic object (42; 52) comprising a set of graphic objects representative of said submersible roadway, a graphic representation of said virtual graphic object (42; 52) being a function of said second data and of temporal information representative of a current instant.

2. Method according to claim 1, for which said virtual graphic object (42) represents a gantry supporting at least a first graphic object (421, 521) representative of a road sign indicating a submersible roadway area, at least a second graphic object (422) representative of a light signal and a third graphic object (423) representative of a text display area.

3. Method according to claim 2, for which the graphic representation of said virtual graphic object (42) corresponds to: - a first graphic representation when said current instant belongs to a first time interval (301) of determined duration centered on a low tide time (31) and when a coefficient of a high tide (32) temporally following said low tide (31) is lower than a threshold coefficient, said portico being displayed with a first color according to said first graphic representation; - a second graphic representation when said current instant belongs to said first time interval (301) and when the coefficient of said high tide (32) is greater than said threshold coefficient, said gantry being displayed with a second color different from said first color according to said second graphic representation; - a third graphic representation when said current instant belongs to a second time interval (302) of determined duration centered on a time of said high tide (32) temporally following said low tide (31), said gantry being displayed with a third color according to said third graphic representation, said third color being different from said first color and said second color; and - a fourth graphic representation when said current instant belongs to a third time interval (303) between said first interval (301) and said second time interval (302), said portal being displayed with said second color according to said fourth graphic representation.

4. Method according to claim 3, for which said at least one second graphic object (422) is representative of a fixed light signal according to said first graphic representation and according to said second graphic representation, and said at least one second graphic object (422) is representative of a flashing light signal according to said third graphic representation and according to said fourth graphic representation.

5. Method according to one of claims 2 to 4, for which said text display area (423) comprises a first piece of information representative of said current instant, a second piece of information representative of a high tide schedule and a third piece of information representative of a coefficient of said high tide.

6. Method according to one of claims 1 to 5, for which said at least one first graphic object (421) is representative of a road sign. signaling a start of a submersible roadway when said vehicle (10) is approaching a start of said submersible roadway (112) and said at least one first graphic object (521) is representative of a road sign signaling an end of a submersible roadway when said vehicle (10) is approaching an end of said submersible roadway (112).

7. Method according to one of claims 1 to 6, for which said first data are determined from third data representative of geographical positions of the vehicle (10), fourth data representative of a map of a road environment (1) in which said vehicle (10) circulates and fifth data representative of the location of submersible roads included in said road environment (1).

8. Method according to one of claims 1 to 7, further comprising a step of receiving sixth data representative of activation or deactivation of a submersible road presence alert service from a human-machine interface on board said vehicle, said display control (73) of the graphic content being a function of said sixth data.

9. Device (6) for controlling an on-board display system in a vehicle, said device (6) comprising a memory (61) associated with at least one processor (60) configured for implementing the steps of the method according to any one of claims 1 to 8.

10. Vehicle (10) comprising the device (6) according to claim 9.

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