EP3580728A1 - Device for assisting night-time road navigation - Google Patents

Device for assisting night-time road navigation

Info

Publication number
EP3580728A1
EP3580728A1 EP18705708.8A EP18705708A EP3580728A1 EP 3580728 A1 EP3580728 A1 EP 3580728A1 EP 18705708 A EP18705708 A EP 18705708A EP 3580728 A1 EP3580728 A1 EP 3580728A1
Authority
EP
European Patent Office
Prior art keywords
display
night
vision system
zone
images
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.)
Withdrawn
Application number
EP18705708.8A
Other languages
German (de)
French (fr)
Inventor
Loic Bayard
Benjamin MENNESSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
PSA Automobiles SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3580728A1 publication Critical patent/EP3580728A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/20—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/30—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles providing vision in the non-visible spectrum, e.g. night or infrared vision
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/60—Editing figures and text; Combining figures or text
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Arrangement of adaptations of instruments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/20—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/22—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle
    • B60R1/23—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle with a predetermined field of view
    • B60R1/24—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle with a predetermined field of view in front of the vehicle
    • 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
    • G01C21/3626—Details of the output of route guidance instructions
    • G01C21/3647—Guidance involving output of stored or live camera images or video streams
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/50—Context or environment of the image
    • G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
    • B60K2360/166—
    • B60K2360/176—
    • B60K35/28—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
    • B60R2300/106—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used using night vision cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
    • B60R2300/307—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing virtually distinguishing relevant parts of a scene from the background of the scene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
    • B60R2300/8053—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for bad weather conditions or night vision

Definitions

  • the invention relates to a device for assisting navigation and more particularly the aid to night road navigation for a vehicle, in particular a motor vehicle.
  • So-called "night vision” systems which use a camera more sensitive than the human eye to film a scene at the front of the vehicle, and which restore this image to the driver on a screen.
  • the objective of these systems is to be able to drive at night, or in conditions of reduced visibility (rain, snow, fog, ...) with a visibility higher than that offered by the headlights, while avoiding glare.
  • These systems provide the driver with information on the road scene that he does not perceive or perceive less well by looking at the road, but that he has the opportunity to see if he is looking at the screen, such as, for example, the presence of a pedestrian on the side of the road or a road profile in the distance.
  • the French patent application FR2902381 discloses a night vision system that: detects the location of the area of the road scene seen by an image forming device, and the production of a corresponding synthetic image at said area of the localized road scene, and merging the image picked up by the image forming device and said synthesis image, the result of said merging being displayed on the vehicle screen.
  • the invention therefore aims to provide a night vision device for not only distract a driver, and secondly to alert accurately and effectively when a danger is detected.
  • a device for assisting the night driving of a vehicle comprising at least one display (23) and a night vision system (20) adapted to capture images in dark condition and to transmit them to said display (23), said display (23) being able to display a graphic page (31) comprising a first area (31. 1) and second zone (31 .2) arranged next to said first zone (31 .1), the display (23) comprising a first display mode in which said first zone (31. operation of said vehicle characterized in that the display (23) is adapted, in response to receiving an alert signal from a night vision system (20), to be displayed in the second zone (31). .2) images from the night vision system (20).
  • the invention makes it possible to display punctually when an alert is emitted by the night vision system to display images from said system. Thus, when no alert is issued, these images do not disturb the driver. These images are displayed in a predetermined area (the second area) so that the vehicle operating information (displayed in the first area) remains visible. Maintaining the display of this information makes it possible not to disturb unnecessarily the driver who keeps a visual cue on these displays.
  • the display of the images allows the driver to see very precisely the nature of the alert signaled by the night vision system.
  • the night vision system being able to emit a first and a second level of alert, the first level of alert indicating a risk higher than the second level of alert
  • said display is configured to display, in the first display mode, images from the night vision system in the second zone, only in response to the receipt of an alert signal corresponds to a first level of alert.
  • Images from the night vision system are only displayed when a first level alert is issued.
  • said display is configured to display, in the first display mode, the images coming from the night vision system, in an ad hoc manner, only the time that the reception of said alert signal lasts.
  • the display comprises means for resizing and / or reframing the images coming from the night vision system, the displayed image, in the first display mode, in the second zone being cropped or resized.
  • This feature makes it possible to display an image from the night vision system over a small area of the screen while maintaining a high level of information focused on the danger associated with the alert.
  • the display comprises a second display mode in which the display permanently displays in said first zone images from the night vision system.
  • the second display mode allows the driver to have images from the vision system when he wants.
  • the display is able to switch from the first display mode to the second display mode, and vice versa, in response to the receipt of a command from a user.
  • the display is able to display, in the first display mode, an indicator indicating whether the night vision system is active.
  • the indicator makes it possible to signal to the driver whether the night vision system is activated because, in the absence of a permanently displayed image, the driver has no other way of knowing if the system is active when no alert is in progress.
  • the first zone comprises vehicle operating data or guidance data.
  • the first zone is displayed on a central part of the display.
  • the graphic page further comprises a third zone, the second and third zones being located on either side of the first zone.
  • the invention also relates to a vehicle characterized in that it comprises a night driving assistance device according to the invention.
  • FIG. 1 illustrates a motor vehicle dashboard according to the invention
  • FIG. 2 illustrates a block diagram of the system according to the invention
  • FIG. 3a illustrates a first display mode according to the invention
  • FIG. 3b illustrates the first display mode when an alert of the night vision system is emitted
  • FIG. 4 illustrates a second display mode according to the invention.
  • a motor vehicle dashboard equipped with two screens and a night navigation system is shown.
  • a first screen 1 is a screen of a conventional road navigation system, GPS type (acronym for "Global Positioning System”), displaying, in a manner known per se, a map and plots, perspectives, colors and informations.
  • a second screen 2 is a screen of a system called "night vision”. On screen 2, the result is similar to a very detailed video image in white and black, of the road scene referenced Z.
  • the architecture of the night vision system according to the invention is illustrated by the block diagram of FIG.
  • the system 20 comprises an image acquisition device 21, a computer 22 communicates with at least one display 23.
  • the image acquisition device 21 is constituted by at least one night vision camera, installed on the front of the vehicle.
  • the camera discreetly integrated into the front of the vehicle, receives infrared reflector images reflected by the road.
  • a camera captures radiation thermal elements of the scene.
  • LVDS connection (acronym for "Low Voltage Differential Signaling") makes it possible to connect two pieces of equipment and to carry, on the one hand, video data and, on the other hand, non-video data.
  • the computer 22 comprises a module (electronic module) for image processing from the acquisition device 21.
  • the processed images are transmitted to the display 23 via a second video link 25, for example of the LVDS type.
  • the computer 22 comprises a pedestrian detection module.
  • the detection module also transmits an alert signal on a CAN bus 26 of the vehicle and / or on the second video link 25, for example of the LVDS type, to the display 23, during a detection of a cyclist or animal.
  • the calculator 22 is able to emit a first and a second alert level, the first alert level indicating a higher risk than the second alert level.
  • the first level of alert corresponds for example to the detection of a pedestrian or an animal on the road.
  • the second level of alert corresponds for example to the detection of a pedestrian or an animal on the roadside.
  • pedestrians or animals, detected on the road or on the aisles can then be highlighted, for example by flashing in a color (eg red or yellow) and / or displaying a pictogram .
  • a color eg red or yellow
  • the display 23 may be the second screen 2 in the drawing of Figure 1, or another image projection system according to another embodiment.
  • the display 23 may be a conventional LCD type screen (acronym for "Liquid Crystal Display” for LCD), for example, or a HUD type image projection system (acronym for "Head Up”). Display “for" head-up display "), for example.
  • the display 23 comprises at least two different display modes. Each of the two display modes comprises a first display area 31 .1 situated in the central part of the screen. A second display area 31.2 and a third display area 31.3 are disposed on either side of the first display area 31 1 respectively on the right and on the left.
  • the display 23 comprises for example at least one of the modes described below.
  • Fig. 3a shows a first display mode 31 where the first display area 31 .1 includes vehicle operating data. In the example, it is an indication of the speed of the vehicle whose value is 90km / h.
  • the second display area 31.2 includes a guidance instruction.
  • the third display area 31.2 also includes an indication of the vehicle speed but in the form of a counter.
  • the display area 31 .1 is intended for displaying information permanently.
  • the second 31.2 and third 31.3 zones are able to display one-off information (for example navigation instructions or alerts).
  • Figure 3b shows the first display mode 31 when the display 23 receives an alert from the night vision system.
  • the first and third zones are identical to FIG. 3a.
  • By against the second zone displays an image from the camera 21 and a pictogram.
  • the second zone 31 .2 includes an indication of a level whose value is of the order of 3.5.
  • the third zone 31 .3 includes an indication of the speed of the vehicle whose value is 90km / h.
  • the image from the camera 21 has an indication (in the form of a colored polygon) that an animal is detected.

Abstract

The invention relates to a device for assisting night-time driving of a vehicle, comprising at least one display and a night vision system capable of capturing images under conditions of darkness and transmitting them to said display, said display being capable of displaying a graphics page (31) comprising a first area (31.1) and second area (31.2) arranged next to said first area (31.1), the display (23) having a first display mode in which said first area (31.1) comprises operating information of the vehicle, characterised in that the display is capable, in response to receiving an alarm signal coming from a night vision system, of displaying, in the second area (31.2), images coming from the night vision system.

Description

DISPOSITIF D'AIDE A LA NAVIGATION ROUTIERE DE NUIT.  DEVICE FOR AIDING NIGHT ROAD NAVIGATION.
L'invention concerne un dispositif d'aide à la navigation et plus particulièrement l'aide à la navigation routière de nuit pour un véhicule, en particulier un véhicule automobile. The invention relates to a device for assisting navigation and more particularly the aid to night road navigation for a vehicle, in particular a motor vehicle.
On connaît des systèmes dits de " vision de nuit ", qui utilisent une caméra plus sensible que l'œil humain pour filmer une scène à l'avant du véhicule, et qui restituent cette image au conducteur sur un écran. L'objectif de ces systèmes est de pouvoir conduire la nuit, ou par conditions de visibilité réduite (pluie, neige, brouillard, ...) avec une visibilité plus élevée que celle offerte par les phares, tout en évitant l'éblouissement. Ces systèmes rendent accessibles au conducteur des informations sur la scène routière qu'il ne perçoit pas ou perçoit moins bien en regardant la route, mais qu'il a la possibilité de voir s'il regarde l'écran, comme, par exemple, la présence d'un piéton sur les bas- côtés de la route ou bien un profil de route au loin.  So-called "night vision" systems are known, which use a camera more sensitive than the human eye to film a scene at the front of the vehicle, and which restore this image to the driver on a screen. The objective of these systems is to be able to drive at night, or in conditions of reduced visibility (rain, snow, fog, ...) with a visibility higher than that offered by the headlights, while avoiding glare. These systems provide the driver with information on the road scene that he does not perceive or perceive less well by looking at the road, but that he has the opportunity to see if he is looking at the screen, such as, for example, the presence of a pedestrian on the side of the road or a road profile in the distance.
Un des inconvénients d'un tel système est, qu'une fois activé, celui-ci affiche en permanence des images. Ces images peuvent s'avérer distrayante ou gênante pour le conducteur. Le seul moyen de supprimer cet affichage est la désactivation du système. Mais dans ce cas le conducteur ne bénéficie plus des alertes du système.  One of the disadvantages of such a system is that once activated, it constantly displays images. These images can be distracting or embarrassing for the driver. The only way to remove this view is to disable the system. But in this case the driver no longer benefits from system alerts.
On connaît par exemple par la demande de brevet française FR2902381 un système de vision de nuit réalisant : la détection de la localisation de la zone de la scène routière vue par un dispositif de formation d'images, la réalisation d'une image de synthèse correspondant à ladite zone de la scène routière localisée, et la fusion de l'image captée par le dispositif de formation d'images et de ladite image de synthèse, le résultat de ladite fusion étant affiché sur l'écran du véhicule. For example, the French patent application FR2902381 discloses a night vision system that: detects the location of the area of the road scene seen by an image forming device, and the production of a corresponding synthetic image at said area of the localized road scene, and merging the image picked up by the image forming device and said synthesis image, the result of said merging being displayed on the vehicle screen.
L'invention a donc pour but de proposer un dispositif de vision de nuit permettant d'une part de ne pas distraire un conducteur, et d'autre part de l'alerter de façon précise et efficace lorsqu'un danger est détecté.  The invention therefore aims to provide a night vision device for not only distract a driver, and secondly to alert accurately and effectively when a danger is detected.
Elle propose plus précisément à cet effet un dispositif d'assistance à la conduite de nuit d'un véhicule, comportant au moins un afficheur (23) et un système de vision de nuit (20) apte à capter des images en condition d'obscurité et à les transmettre audit afficheur (23), ledit afficheur (23) étant apte à afficher une page graphique (31 ) comprenant une première zone (31 .1 ) et deuxième zone (31 .2) disposée à côté de ladite première zone (31 .1 ), l'afficheur (23) comportant un premier mode d'affichage dans lequel ladite première zone (31 .1 ) comporte des informations de fonctionnement dudit véhicule caractérisé en ce que, l'afficheur (23) est apte, en réponse à la réception d'un signal d'alerte provenant d'un système de vision de nuit (20), à afficher dans la deuxième zone (31 .2) des images provenant du système de vision de nuit (20). It proposes more specifically for this purpose a device for assisting the night driving of a vehicle, comprising at least one display (23) and a night vision system (20) adapted to capture images in dark condition and to transmit them to said display (23), said display (23) being able to display a graphic page (31) comprising a first area (31. 1) and second zone (31 .2) arranged next to said first zone (31 .1), the display (23) comprising a first display mode in which said first zone (31. operation of said vehicle characterized in that the display (23) is adapted, in response to receiving an alert signal from a night vision system (20), to be displayed in the second zone (31). .2) images from the night vision system (20).
L'invention permet d'afficher de façon ponctuelle lorsqu'une alerte est émise par le système de vision de nuit d'afficher des images provenant dudit système. Ainsi, lorsqu'aucune alerte n'est émise, ces images ne perturbent pas le conducteur. Ces images sont affichées dans une zone prédéterminée (la deuxième zone) de sorte que les informations de fonctionnement du véhicule (affichées dans la première zone) restent visibles. Le maintien de l'affichage de ces informations permet de ne pas perturber inutilement le conducteur qui conserve un repère visuel sur ces affichages.  The invention makes it possible to display punctually when an alert is emitted by the night vision system to display images from said system. Thus, when no alert is issued, these images do not disturb the driver. These images are displayed in a predetermined area (the second area) so that the vehicle operating information (displayed in the first area) remains visible. Maintaining the display of this information makes it possible not to disturb unnecessarily the driver who keeps a visual cue on these displays.
Enfin l'affichage des images permet au conducteur de visualiser très précisément la nature de l'alerte signalée par le système de vision de nuit.  Finally, the display of the images allows the driver to see very precisely the nature of the alert signaled by the night vision system.
Avantageusement, le système de vision de nuit étant apte à émettre un premier et un deuxième niveau d'alerte, le premier niveau d'alerte indiquant un risque plus élevé que le deuxième niveau d'alerte, ledit afficheur est configuré pour afficher, dans le premier mode d'affichage, des images provenant du système de vision de nuit dans la deuxième zone, uniquement en réponse à la réception d'un signal d'alerte correspond à un premier niveau d'alerte.  Advantageously, the night vision system being able to emit a first and a second level of alert, the first level of alert indicating a risk higher than the second level of alert, said display is configured to display, in the first display mode, images from the night vision system in the second zone, only in response to the receipt of an alert signal corresponds to a first level of alert.
De la sorte, le conducteur n'est pas perturbé par des alertes de moindre importance. Les images provenant du système de vision de nuit ne s'affichent que lorsqu'une alerte du premier niveau est émise.  In this way, the driver is not disturbed by alerts of lesser importance. Images from the night vision system are only displayed when a first level alert is issued.
Avantageusement, ledit afficheur est configuré pour afficher, dans le premier mode d'affichage, les images provenant du système de vision de nuit, de façon ponctuelle, uniquement le temps que dure la réception dudit signal d'alerte. Advantageously, said display is configured to display, in the first display mode, the images coming from the night vision system, in an ad hoc manner, only the time that the reception of said alert signal lasts.
De la sorte, le conducteur n'est pas perturbé par les images provenant du système de vision de nuit lorsque le danger associé à l'alerte a disparu. In this way, the driver is not disturbed by the images coming from the night vision system when the danger associated with the alert has disappeared.
Avantageusement, l'afficheur comporte des moyens de redimensionnement et/ ou de recadrage des images provenant du système de vision de nuit, l'image affichée, dans le premier mode d'affichage, dans la deuxième zone étant recadrée ou redimensionnée. Advantageously, the display comprises means for resizing and / or reframing the images coming from the night vision system, the displayed image, in the first display mode, in the second zone being cropped or resized.
Cette caractéristique permet d'afficher une image provenant du système de vision de nuit sur une zone réduite de l'écran tout en maintenant un niveau d'informations élevé focalisé sur le danger associé à l'alerte. This feature makes it possible to display an image from the night vision system over a small area of the screen while maintaining a high level of information focused on the danger associated with the alert.
Avantageusement, l'afficheur comporte un deuxième mode d'affichage dans lequel l'afficheur affiche en permanence dans ladite première zone des images provenant du système de vision de nuit. Advantageously, the display comprises a second display mode in which the display permanently displays in said first zone images from the night vision system.
Le deuxième mode d'affichage permet au conducteur de disposer des images provenant du système de vision lorsqu'il le souhaite. The second display mode allows the driver to have images from the vision system when he wants.
Avantageusement, l'afficheur est apte à passer du premier mode d'affichage au deuxième mode d'affichage, et inversement, en réponse à la réception d'une commande d'un utilisateur. Advantageously, the display is able to switch from the first display mode to the second display mode, and vice versa, in response to the receipt of a command from a user.
Avantageusement, l'afficheur est apte à afficher, dans le premier mode d'affichage, un indicateur indiquant si le système de vision de nuit est actif. Advantageously, the display is able to display, in the first display mode, an indicator indicating whether the night vision system is active.
L'indicateur permet de signaler au conducteur si le système de vision de nuit est activé car en l'absence d'image affichée en permanence, le conducteur n'a pas d'autre moyen de savoir si le système est actif lorsqu'aucune n'alerte n'est en cours. The indicator makes it possible to signal to the driver whether the night vision system is activated because, in the absence of a permanently displayed image, the driver has no other way of knowing if the system is active when no alert is in progress.
Avantageusement, dans le premier mode d'affichage la première zone comporte des données de fonctionnement du véhicule ou des données de guidage. Advantageously, in the first display mode, the first zone comprises vehicle operating data or guidance data.
Avantageusement, la première zone est affichée sur une partie centrale de l'afficheur. Advantageously, the first zone is displayed on a central part of the display.
Avantageusement, la page graphique comprend en outre une troisième zone, la deuxième et la troisième zone étant situées de part et d'autre de la première zone. L'invention concerne aussi un véhicule caractérisé en ce qu'il comporte un dispositif d'assistance à la conduite de nuit selon l'invention. Advantageously, the graphic page further comprises a third zone, the second and third zones being located on either side of the first zone. The invention also relates to a vehicle characterized in that it comprises a night driving assistance device according to the invention.
D'autres caractéristiques et avantages de l'invention apparaîtront à l'examen de la description détaillée ci-après, et des dessins annexés, sur lesquels :  Other features and advantages of the invention will appear on examining the detailed description below, and the attached drawings, in which:
- la figure 1 illustre un tableau de bord de véhicule automobile selon l'invention ; FIG. 1 illustrates a motor vehicle dashboard according to the invention;
- la figure 2 illustre un schéma fonctionnel du système selon l'invention ; FIG. 2 illustrates a block diagram of the system according to the invention;
- la figure 3a illustre un premier mode d'affichage selon l'invention ;  FIG. 3a illustrates a first display mode according to the invention;
- la figure 3b illustre le premier mode d'affichage lorsqu'une alerte du système de vision nuit est émise ;  FIG. 3b illustrates the first display mode when an alert of the night vision system is emitted;
- la figure 4 illustre un deuxième mode d'affichage selon l'invention.  FIG. 4 illustrates a second display mode according to the invention.
Les dessins annexés pourront non seulement servir à compléter l'invention, mais aussi contribuer à sa définition, le cas échéant.  The attached drawings may not only serve to complete the invention, but also contribute to its definition, if any.
Sur le dessin de la figure 1 , on a représenté un tableau de bord de véhicule automobile équipé de deux écrans et d'un système de navigation routière de nuit, selon la présente invention. Un premier écran 1 , est un écran d'un système de navigation routière classique, de type GPS (sigle pour " Global Positioning System "), affichant, de manière connue en soi, une cartographie et des tracés, des perspectives, des couleurs et des informations. Un second écran 2 est un écran d'un système dit de " vision de nuit ". Sur l'écran 2, le résultat est semblable à une image vidéo très détaillée en blanc et noir, de la scène routière référencée Z. In the drawing of Figure 1, there is shown a motor vehicle dashboard equipped with two screens and a night navigation system, according to the present invention. A first screen 1, is a screen of a conventional road navigation system, GPS type (acronym for "Global Positioning System"), displaying, in a manner known per se, a map and plots, perspectives, colors and informations. A second screen 2 is a screen of a system called "night vision". On screen 2, the result is similar to a very detailed video image in white and black, of the road scene referenced Z.
L'architecture du système de vision de nuit selon l'invention est illustrée par le schéma fonctionnel de la figure 2. The architecture of the night vision system according to the invention is illustrated by the block diagram of FIG.
Le système 20 comporte un dispositif d'acquisition d'images 21 , un calculateur 22 communique avec au moins un afficheur 23. The system 20 comprises an image acquisition device 21, a computer 22 communicates with at least one display 23.
Le dispositif d'acquisition d'images 21 est constitué par au moins une caméra de vision de nuit, installée sur l'avant du véhicule.  The image acquisition device 21 is constituted by at least one night vision camera, installed on the front of the vehicle.
Selon une première technologie, la caméra, discrètement intégrée à l'avant du véhicule, reçoit les images de projecteurs infra rouges réfléchies par la route. Selon une deuxième technologie, une caméra capte le rayonnement thermique des éléments de la scène. According to a first technology, the camera, discreetly integrated into the front of the vehicle, receives infrared reflector images reflected by the road. According to a second technology, a camera captures radiation thermal elements of the scene.
Ces images sont transmises au calculateur 22, pour subir un traitement, par l'intermédiaire d'une première liaison vidéo 24, par exemple de type LVDS. On rappelle qu'une liaison LVDS (acronyme de "Low Voltage Differential Signaling") permet de connecter deux équipements et de transporter, d'une part, des données vidéo et, d'autre part, des données non vidéo. These images are transmitted to the computer 22, for processing, via a first video link 24, for example of the LVDS type. It is recalled that an LVDS connection (acronym for "Low Voltage Differential Signaling") makes it possible to connect two pieces of equipment and to carry, on the one hand, video data and, on the other hand, non-video data.
Le calculateur 22, selon la présente invention, comporte, un module (module électronique) de traitement d'images provenant du dispositif d'acquisition 21 . The computer 22, according to the present invention, comprises a module (electronic module) for image processing from the acquisition device 21.
Les images traitées sont transmises à l'afficheur 23 par l'intermédiaire d'une deuxième liaison vidéo 25, par exemple de type LVDS. The processed images are transmitted to the display 23 via a second video link 25, for example of the LVDS type.
De façon connue, le calculateur 22 comporte un module de détection de piéton. Le module de détection émet en outre un signal d'alerte sur un bus CAN 26 du véhicule et/ou sur la deuxième liaison vidéo 25, par exemple de type LVDS, à destination de l'afficheur 23, lors d'une détection d'un cycliste ou d'un animal. In known manner, the computer 22 comprises a pedestrian detection module. The detection module also transmits an alert signal on a CAN bus 26 of the vehicle and / or on the second video link 25, for example of the LVDS type, to the display 23, during a detection of a cyclist or animal.
Le calculateur 22 est apte à émettre un premier et un deuxième niveau d'alerte, le premier niveau d'alerte indiquant un risque plus élevé que le deuxième niveau d'alerte. Le premier niveau d'alerte correspond par exemple à la détection d'un piéton ou d'un animal sur la route. Le deuxième niveau d'alerte correspond par exemple à la détection d'un piéton ou d'un animal sur le bas-côté. The calculator 22 is able to emit a first and a second alert level, the first alert level indicating a higher risk than the second alert level. The first level of alert corresponds for example to the detection of a pedestrian or an animal on the road. The second level of alert corresponds for example to the detection of a pedestrian or an animal on the roadside.
De façon avantageuse, des piétons ou des animaux, détectés sur la route ou sur les bas-côtés peuvent alors être mis en évidence, par exemple en les faisant clignoter dans une couleur (par exemple rouge ou jaune) et /ou en affichant un pictogramme. Advantageously, pedestrians or animals, detected on the road or on the aisles can then be highlighted, for example by flashing in a color (eg red or yellow) and / or displaying a pictogram .
L'afficheur 23 peut être le second écran 2 sur le dessin de la figure 1 , ou un autre système de projection d'images selon un autre mode de réalisation. Ainsi, l'afficheur 23 peut être un écran classique de type LCD (acronyme de " Liquid Cristal Display " pour écran à cristaux liquides), par exemple, ou bien un système de projection d'images de type HUD (acronyme de " Head Up Display " pour " affichage tête-haute "), par exemple. L'afficheur 23 comprend au moins deux modes d'affichages différents. Chacun des deux modes d'affichage comporte une première zone d'affichage 31 .1 situé en partie centrale de l'écran. Une deuxième zone d'affichage 31 .2 et une troisième zone d'affichage 31 .3 sont disposées de part et d'autre de la première zone d'affichage 31 .1 respectivement à droite et à gauche. L'afficheur 23 comprend par exemple au moins l'un des modes décrit ci-dessous. The display 23 may be the second screen 2 in the drawing of Figure 1, or another image projection system according to another embodiment. Thus, the display 23 may be a conventional LCD type screen (acronym for "Liquid Crystal Display" for LCD), for example, or a HUD type image projection system (acronym for "Head Up"). Display "for" head-up display "), for example. The display 23 comprises at least two different display modes. Each of the two display modes comprises a first display area 31 .1 situated in the central part of the screen. A second display area 31.2 and a third display area 31.3 are disposed on either side of the first display area 31 1 respectively on the right and on the left. The display 23 comprises for example at least one of the modes described below.
La figure 3a montre un premier mode d'affichage 31 où la première zone d'affichage 31 .1 comporte des données de fonctionnement du véhicule. Dans l'exemple, il s'agit d'une indication de la vitesse du véhicule dont la valeur est 90km/h. Fig. 3a shows a first display mode 31 where the first display area 31 .1 includes vehicle operating data. In the example, it is an indication of the speed of the vehicle whose value is 90km / h.
La deuxième zone d'affichage 31 .2 comporte une instruction de guidage. The second display area 31.2 includes a guidance instruction.
La troisième zone d'affichage 31 .2 comporte aussi une indication de la vitesse du véhicule mais sous la forme d'un compteur. The third display area 31.2 also includes an indication of the vehicle speed but in the form of a counter.
La zone d'affichage 31 .1 est destinée à l'affichage d'information de façon permanente. The display area 31 .1 is intended for displaying information permanently.
Les deuxièmes 31 .2 et troisièmes 31 .3 zones sont aptes à afficher des informations ponctuelles (par exemple des instructions de navigation ou des alertes). The second 31.2 and third 31.3 zones are able to display one-off information (for example navigation instructions or alerts).
La figure 3b montre le premier mode d'affichage 31 lorsque l'afficheur 23 reçoit une alerte provenant du système de vision de nuit. Figure 3b shows the first display mode 31 when the display 23 receives an alert from the night vision system.
Les première et troisième zones sont identiques à la figure 3a. Par contre la deuxième zone affiche une image issue de la caméra 21 ainsi qu'un pictogramme. The first and third zones are identical to FIG. 3a. By against the second zone displays an image from the camera 21 and a pictogram.
Un deuxième mode d'affichage 31 , illustrée figure 3a, où la première zone d'affichage 31 .1 comporte une image issue de la caméra 21 et où la deuxième zone d'affichage 31 .2 et une troisième zone d'affichage 31 .3 comprennent des données de fonctionnement du véhicule. Dans l'exemple, la deuxième zone 31 .2 comporte une indication d'un niveau dont la valeur est de l'ordre de 3.5. La troisième zone 31 .3 comporte une indication de la vitesse du véhicule dont la valeur est 90km/h. A second display mode 31, illustrated in FIG. 3a, where the first display area 31 .1 comprises an image coming from the camera 21 and where the second display area 31 .2 and a third display area 31. 3 include vehicle operating data. In the example, the second zone 31 .2 includes an indication of a level whose value is of the order of 3.5. The third zone 31 .3 includes an indication of the speed of the vehicle whose value is 90km / h.
Dans la première zone d'affichage 31 .1 , l'image issue de la caméra 21 comporte une indication (sous la forme d'un polygone coloré) qu'un animal est détecté. In the first display area 31 .1, the image from the camera 21 has an indication (in the form of a colored polygon) that an animal is detected.

Claims

REVENDICATIONS
1 . Dispositif d'assistance à la conduite de nuit d'un véhicule, comportant au moins un afficheur (23) et un système de vision de nuit (20) apte à capter des images en condition d'obscurité et à les transmettre audit afficheur (23), ledit afficheur (23) étant apte à afficher une page graphique (31 ) comprenant une première zone (31 .1 ) et une deuxième zone (31 .2) disposée à côté de ladite première zone (31 .1 ), l'afficheur (23) comportant un premier mode d'affichage dans lequel ladite première zone (31 .1 ) comporte des informations de fonctionnement dudit véhicule caractérisé en ce que, l'afficheur (23) est apte, en réponse à la réception d'un signal d'alerte provenant d'un système de vision de nuit (20), à afficher dans la deuxième zone (31 .2) des images provenant du système de vision de nuit (20). 1. A device for assisting the night driving of a vehicle, comprising at least one display (23) and a night vision system (20) capable of capturing images in a dark condition and transmitting them to said display (23). ), said display (23) being able to display a graphic page (31) comprising a first area (31 .1) and a second area (31 .2) disposed next to said first area (31 .1), display (23) comprising a first display mode in which said first zone (31 .1) comprises operating information of said vehicle, characterized in that the display (23) is capable, in response to the reception of a warning signal from a night vision system (20), to display in the second zone (31 .2) images from the night vision system (20).
2. Dispositif d'assistance à la conduite de nuit selon la revendication 1 , caractérisé en ce que, le système de vision de nuit (20) étant apte à émettre un premier et un deuxième niveau d'alerte, le premier niveau d'alerte indiquant un risque plus élevé que le deuxième niveau d'alerte, ledit afficheur (23) est configuré pour afficher, dans le premier mode d'affichage, des images provenant du système de vision de nuit (20) dans la deuxième zone (31 .2), uniquement en réponse à la réception d'un signal d'alerte correspondant à un premier niveau d'alerte. Night-time assistance device according to claim 1, characterized in that, the night vision system (20) being able to emit a first and a second alert level, the first alert level. indicating a risk higher than the second alert level, said display (23) is configured to display, in the first display mode, images from the night vision system (20) in the second zone (31. 2), only in response to receiving an alert signal corresponding to a first alert level.
3. Dispositif d'assistance à la conduite de nuit selon l'une des revendications 1 ou 2, caractérisé en ce que ledit afficheur (23) est configuré pour afficher, dans le premier mode d'affichage, les images provenant du système de vision de nuit (20), de façon ponctuelle, uniquement le temps que dure la réception dudit signal d'alerte. 3. Night driving assistance device according to one of claims 1 or 2, characterized in that said display (23) is configured to display, in the first display mode, the images from the vision system. at night (20), only for a period of time the reception of said warning signal.
4. Dispositif d'assistance à la conduite de nuit selon l'une des revendications précédentes, caractérisé en ce que l'afficheur (23) comporte des moyens de redimensionnement et/ ou de recadrage des images provenant du système de vision de nuit (20), l'image affichée, dans le premier mode d'affichage, dans la deuxième zone (31 .2) étant recadrée ou redimensionnée. 4. Night driving assistance device according to one of the preceding claims, characterized in that the display (23) comprises means for resizing and / or reframing the images from the control system. night vision (20), the image displayed in the first display mode in the second area (31 .2) being cropped or resized.
5. Dispositif d'assistance à la conduite de nuit selon l'une des revendications précédentes, caractérisé en ce que l'afficheur comporte un deuxième mode d'affichage dans lequel l'afficheur (23) affiche en permanence dans ladite première zone (31 .1 ) des images provenant du système de vision de nuit (20). Night-driving assistance device according to one of the preceding claims, characterized in that the display comprises a second display mode in which the display (23) permanently displays in said first zone (31). .1) images from the night vision system (20).
6. Dispositif d'assistance à la conduite de nuit selon la revendication précédente, caractérisé en ce que l'afficheur (23) est apte à passer du premier mode d'affichage au deuxième mode d'affichage, et inversement, en réponse à la réception d'une commande d'un utilisateur. 6. Night driving assistance device according to the preceding claim, characterized in that the display (23) is adapted to switch from the first display mode to the second display mode, and vice versa, in response to the receiving a command from a user.
7. Dispositif d'assistance à la conduite de nuit selon l'une des revendications précédentes, caractérisé en ce que la première zone (31 .1 ) est affichée sur une partie centrale de l'afficheur (23). 7. A night driving assistance device according to one of the preceding claims, characterized in that the first zone (31 .1) is displayed on a central portion of the display (23).
8. Dispositif d'assistance à la conduite de nuit selon la revendication précédente, caractérisé en ce que la page graphique (31 ) comprend en outre une troisième zone (31 .3), la deuxième et la troisième zones étant situées de part et d'autre de la première zone (31 .1 ). 8. A night driving assistance device according to the preceding claim, characterized in that the graphic page (31) further comprises a third zone (31 .3), the second and third zones being located on the left and right sides. other of the first zone (31 .1).
9. Véhicule caractérisé en ce qu'il comporte un dispositif d'assistance à la conduite de nuit selon l'une des revendications précédentes. 9. Vehicle characterized in that it comprises a night driving assistance device according to one of the preceding claims.
EP18705708.8A 2017-02-07 2018-02-02 Device for assisting night-time road navigation Withdrawn EP3580728A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1751019A FR3062742B1 (en) 2017-02-07 2017-02-07 AID DEVICE FOR NIGHT ROAD NAVIGATION
PCT/FR2018/050261 WO2018146401A1 (en) 2017-02-07 2018-02-02 Device for assisting night-time road navigation

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EP (1) EP3580728A1 (en)
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EP4050893A1 (en) * 2021-02-24 2022-08-31 Ningbo Geely Automobile Research & Development Co. Ltd. A view support system at a vehicle for supporting a vehicle occupant to see the surroundings of the vehicle

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US20020067413A1 (en) * 2000-12-04 2002-06-06 Mcnamara Dennis Patrick Vehicle night vision system
DE102006011481A1 (en) * 2006-03-13 2007-09-20 Robert Bosch Gmbh A method and apparatus for assisting in guiding a vehicle
FR2902381B1 (en) * 2006-06-20 2008-11-28 Peugeot Citroen Automobiles Sa MERGING IMAGES BETWEEN A NAVIGATION SYSTEM AND A NIGHT VISION SYSTEM
JP5142042B2 (en) * 2008-06-26 2013-02-13 日本精機株式会社 Vehicle display device
JP4952765B2 (en) * 2009-10-21 2012-06-13 トヨタ自動車株式会社 Vehicle night vision support device
JP5742937B2 (en) * 2011-06-02 2015-07-01 トヨタ自動車株式会社 Visibility support device for vehicle
KR20150090446A (en) * 2014-01-29 2015-08-06 쌍용자동차 주식회사 Apparatus for pedestrian sensing and indicating with night-vision and method thereof

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CN110300992B (en) 2023-09-26
FR3062742B1 (en) 2020-05-08
US20190381936A1 (en) 2019-12-19
WO2018146401A1 (en) 2018-08-16
FR3062742A1 (en) 2018-08-10

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