WO2024156945A1 - Management of a night vision assistance functionality provided by a driving assistance system of a motor vehicle - Google Patents

Management of a night vision assistance functionality provided by a driving assistance system of a motor vehicle Download PDF

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Publication number
WO2024156945A1
WO2024156945A1 PCT/FR2023/052031 FR2023052031W WO2024156945A1 WO 2024156945 A1 WO2024156945 A1 WO 2024156945A1 FR 2023052031 W FR2023052031 W FR 2023052031W WO 2024156945 A1 WO2024156945 A1 WO 2024156945A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
pictogram
display
functionality
screen
Prior art date
Application number
PCT/FR2023/052031
Other languages
French (fr)
Inventor
Aref Antoine TAHHAN
Thomas Poitevin
Chloe ALLEAU
Stephane Feron
Pierre Quinio
Original Assignee
Stellantis Auto Sas
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Application filed by Stellantis Auto Sas filed Critical Stellantis Auto Sas
Publication of WO2024156945A1 publication Critical patent/WO2024156945A1/en

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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
    • B60R1/22—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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/61—Control of cameras or camera modules based on recognised objects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/62—Control of parameters via user interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H04N23/631—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H04N23/633—Control of cameras or camera modules by using electronic viewfinders for displaying additional information relating to control or operation of the camera
    • H04N23/634—Warning indications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/71—Circuitry for evaluating the brightness variation
    • 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
    • B60R2300/40—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the details of the power supply or the coupling to vehicle components
    • 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

  • TITLE Management of a night vision assistance functionality provided by a motor vehicle driving assistance system
  • the present invention relates to the field of human-machine interfaces of motor vehicles.
  • the invention relates in particular to a method for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle.
  • the invention also relates to a device implementing such a method.
  • the invention applies to motor vehicles such as land motor vehicles, in particular cars.
  • the driver assistance system uses an infrared camera which takes images of the driving environment in front of the vehicle and interacts with a human-machine interface of the vehicle to display these images. on a screen arranged in the passenger compartment of the vehicle, for example integrated into the dashboard.
  • a human-machine interface of the vehicle to display these images.
  • a screen arranged in the passenger compartment of the vehicle, for example integrated into the dashboard.
  • such a feature can further assist the driver by automatically producing an alert when a person or animal is near the vehicle, for example in a visual form by means of a warning light on the dashboard. edge.
  • a driver has few ways to interact with such functionality.
  • controlling such a functionality generally requires having to navigate through the configuration menus which make it possible to modify the operating parameters of the driving assistance system, an impractical operation which proves all the more restrictive to realize when we also consider that such a functionality is likely to be used relatively frequently by most drivers.
  • the invention seeks to remedy this drawback. Its aim in particular is to provide a solution for improving the ergonomics of controlling a night vision assistance functionality provided by a driving assistance system of a motor vehicle. Furthermore, the invention aims to enable such night vision assistance functionality to be provided and controlled by means of a single touch screen of a man-machine interface of a motor vehicle. By this means, the invention aims to minimize the cost and complexity of vehicles while contributing favorably to the comfort of drivers and the safety of night driving.
  • the invention relates, according to a first aspect, to a method of managing, by a computer device on board a motor vehicle, a night vision assistance functionality provided by a vehicle driving assistance system, the method comprising the steps of: i) causing the display of an evolving pictogram on a touch screen of a man-machine interface of the vehicle, a display parameter of the pictogram being selected according to an operating state of the functionality; ii) cause the display on the screen of a shot taken by means of an infrared camera of the driving assistance system once it is established that the pictogram is pressed during a duration less than a pre-established threshold value and that the light conditions in the vehicle's driving environment allow the camera to operate; iii) cause a shot taken using the camera to be displayed on the screen once it is established that data characterizing the presence of a person or animal in front of the vehicle is generated; iv) cause the deactivation of an alert produced by the functionality in the event of the presence of a
  • step ii) may comprise a step consisting of interrupting the display of the shot as soon as it is established that a press is carried out at a portion of the screen which excludes the pictogram.
  • step iv) may include a step consisting of causing a modification of the display parameter of the pictogram.
  • the invention relates to a device for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle, the device comprising at least one information processing unit, comprising at least one processor, and a data storage medium configured to implement a method as described above.
  • the invention relates to a computer program comprising program code instructions for executing the steps of a method as described above when said program is executed by at least one processor .
  • the invention relates to a medium usable in a computer on which a program as described above is recorded.
  • the invention relates to a motor vehicle comprising a device as described above.
  • FIG-1 is a diagram illustrating a motor vehicle according to the invention.
  • FIG. 2 is a functional diagram of a device according to the invention.
  • FIG. 3 is a flowchart of the steps of a process according to the invention.
  • FIG. 1 a motor vehicle 1 according to the invention is schematically illustrated.
  • a driving assistance system 2 which conventionally provides night vision assistance functionality by using an infrared camera and interacting with a human-machine interface 3 of the vehicle to display shots taken with the camera on a touch screen 4 of the man-machine interface 3 which is arranged in the passenger compartment of the vehicle 1, for example at the level of the central console.
  • the vehicle 1 according to the invention also embeds a device 100 for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle within the meaning of the present invention, as described below, which implements a method for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle within the meaning of the present invention, as described below.
  • an evolving pictogram 5 displayed in a graphical interface broadcast on the screen 4 provides information on the operating state of the night vision assistance functionality, preferably using a color particular depending on whether the functionality is active, inactive, on standby, faulty, etc.
  • the driver can control the functionality, i.e. modify its operating state, with a simple press of the finger carried out at the level of the pictogram 5. It can, in particular, cause the display on the screen of a shot 6 taken using the camera by pressing short at the level of pictogram 5.
  • the The driver can advantageously deactivate an alert produced automatically by the night vision functionality in the event of the presence of a person or animal in front of the vehicle. This allows for more ergonomic interaction and more intuitive control of a night vision assistance functionality provided by a driving assistance system of a motor vehicle.
  • the device 100 for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle is illustrated in Figure 2. It is fundamentally of a computing device, which comprises at least one information processing unit 101, comprising one or more processors, a data storage medium 102, on which is in particular recorded a program which comprises program code instructions for the execution of the steps of the method according to the invention described below, and an input and output interface 103 allowing the reception and transmission of data.
  • a computing device which comprises at least one information processing unit 101, comprising one or more processors, a data storage medium 102, on which is in particular recorded a program which comprises program code instructions for the execution of the steps of the method according to the invention described below, and an input and output interface 103 allowing the reception and transmission of data.
  • the device 100 according to the invention is hosted on an independent computer and it interacts via its input and output interface 103 and by means of a wired vehicle communication network (eg CAN, Ethernet ) - shown in Figure 1 by the two-way arrows - with the driving assistance system 2 and with the man-machine interface 3.
  • a wired vehicle communication network eg CAN, Ethernet
  • the device 100 according to the invention is an integral part of a computer of the driving assistance system 2 or the man-machine interface 3.
  • the device 100 can, in particular, cause the display of a pictogram and/or visual content on the screen 4 of the man-machine interface 3, it can establish whether a finger is pressed at the level of the pictogram 5, it can cause the display on the screen 4 of a shot 6 taken by means of the infrared camera of the system driving assistance 2 and it can cause the deactivation of an alert produced by the night vision assistance functionality in the event of the presence of a person or animal in front of the vehicle.
  • the device 100 causes the display of an evolving pictogram 5 on the screen 4 of the man-machine interface 3 of the vehicle 1, in selecting a display parameter of the pictogram, preferably a display color, depending on an operating state of the functionality.
  • the device 100 according to the invention proceeds by first interacting with the driving assistance system 2 to obtain data characterizing an operating state of the night vision assistance functionality (e.g. active, inactive, standby, faulty, etc.). It then interacts with the man-machine interface 3 to cause the display of the pictogram 5 according to the operating state defined by the data previously obtained.
  • an operating state of the night vision assistance functionality e.g. active, inactive, standby, faulty, etc.
  • the device 100 causes the display on the screen 4 of a shot taken by means of the infrared camera of the assistance system there driving 2 as soon as it is established that a press at the level of pictogram 5 is carried out for a duration less than a pre-established threshold value (eg 10ms) and that the light conditions in the driving environment of the vehicle allow the operation of the camera.
  • a pre-established threshold value eg 10ms
  • the device 100 interacts with the driving assistance system 2 to determine data characterizing the light conditions in the driving environment of the vehicle (ie day or night), which the system the driving aid 2 determines by means, for example, of a light detector integrated into the camera, and it interacts with the man-machine interface 3 to determine whether a press at the level of the pictogram 5 is carried out for a duration lower than the threshold value.
  • the driving assistance system 2 determines data characterizing the light conditions in the driving environment of the vehicle (ie day or night), which the system the driving aid 2 determines by means, for example, of a light detector integrated into the camera, and it interacts with the man-machine interface 3 to determine whether a press at the level of the pictogram 5 is carried out for a duration lower than the threshold value.
  • the device 100 then interacts with the man-machine interface 3 to cause the display on the screen 4 of a shot taken using the camera, as illustrated in Figure 1 on the right side of the screen.
  • the driver can advantageously interact with the functionality and control according to his will and in real time the display of a shot taken by means of the camera with a simple short press of the finger carried out at the level of pictogram 5.
  • a shot taken using the camera is displayed only if the light conditions in the vehicle's driving environment allow the camera to operate, i.e. when the vehicle is traveling at night.
  • the device 100 according to the invention then proceeds by carrying out a subsidiary step during which it interrupts the display of the shot as soon as it establishes that a press is carried out at the level of 'a portion of the screen which excludes pictogram 5. Thanks to this subsidiary step, the driver can therefore advantageously interrupt just as easily the display of a shot which is no longer useful to it with a simple short press of the finger carried out on the entire portion of the screen which excludes the pictogram 5.
  • the device 100 according to the invention causes the display on the screen 4 of a shot taken by means of the camera as soon as it establishes that data characterizing the presence of a person or an animal in front of the vehicle are generated.
  • the device 100 according to the invention interacts with the driving assistance system 2, which, according to the invention, is configured to provide night vision assistance functionality which, in a conventional manner, allows to detect the presence of people or animals in front of the vehicle.
  • the driving assistance system 2 comprises, for example, a detection module based on artificial intelligence trained to detect people or animals in shots taken using an infrared camera. .
  • the driving assistance system 2 of the vehicle 1 is at least configured to generate from time to time data characterizing the presence of a person or an animal in front of the vehicle. And when it establishes that such data are generated by the driving assistance system 2, which implies that a person or an animal is present in front of the vehicle, the device 100 according to the invention advantageously proceeds by causing the display on screen 4 of a shot taken using the camera. It thus offers the driver an extremely ergonomic means to help them deal with some of the most dangerous situations of night driving. In particular, it is not easy to imagine the benefit that this real-time display on the screen 4 of the man-machine interface 3 can allow, for example, to reduce the number of accidents involving wild animals.
  • the device 100 according to the invention causes the deactivation of an alert produced by the functionality in the event of the presence of a person or an animal in front of the vehicle as soon as it establishes that support at the level of pictogram 5 is carried out for a duration greater than the threshold value.
  • the device 100 according to the invention interacts in turn with the man-machine interface 3 in order to determine whether a long press is carried out at the level of the pictogram 5 and with the driving assistance system 2 to control deactivation of an alert produced by the night vision assistance functionality in the event of the presence of a person or animal in front of the vehicle, in accordance with what has been explained above.
  • the device 100 according to the invention therefore offers a very practical way to allow the driver to deactivate an alert produced by the night vision assistance functionality provided by the assistance system to driving 2 of the vehicle 1 according to the invention which simply consists of carrying out a long press of the finger at the level of the pictogram 5.
  • the device 100 according to the invention then proceeds by carrying out a subsidiary step during which it causes a modification of the display parameter of pictogram 5 to intuitively reflect an inactive state of the alert for the presence of people or animals.
  • the device 100 causes the display on the screen 4 of visual content explaining unavailability since it establishes that pressing the level of pictogram 5 is carried out for a duration less than the threshold value and the light conditions in the vehicle's driving environment do not allow the camera to operate.
  • the device 100 if it establishes that a short press is carried out at the level of pictogram 5 and that the light conditions in the driving environment of the vehicle do not allow the camera to operate, in other words it is daylight, the device 100 according to the invention then interacts with the man-machine interface 3 to cause the display on the screen 4 of visual content explaining an unavailability of the functionality, for example in the form of text. We can thus easily inform a driver of the unavailability during the day of the night vision assistance functionality provided by the driving assistance system 2 of the vehicle 1 according to the invention.
  • the device 100 causes the display on the screen 4 of visual content explaining a malfunction of the functionality since it establishes that icon 5 is pressed while the functionality or camera malfunctions.
  • a driver of a malfunction of the night vision assistance functionality for example if the camera feed is interrupted, or of the camera, for example when it is blocked by dirt.
  • a solution is provided to significantly improve the ergonomics of a night vision assistance functionality provided by a night vision assistance system.
  • driving a motor vehicle in particular by allowing a driver to control such functionality by performing simple presses on a touch screen.
  • Such night vision assistance functionality can thus be provided and controlled by means of a single touch screen of a man-machine interface of a motor vehicle.
  • the invention contributes to minimizing the cost and complexity of vehicles while providing more comfort for drivers and more safety for night driving.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Mechanical Engineering (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Traffic Control Systems (AREA)

Abstract

The invention relates to a method for controlling a night vision assistance functionality provided by a driving assistance system (2) of a motor vehicle (1). The invention also relates to a device (100) implementing such a method and to a motor vehicle comprising such a device.

Description

DESCRIPTION DESCRIPTION
TITRE : Gestion d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide la conduite d’un véhicule automobile TITLE: Management of a night vision assistance functionality provided by a motor vehicle driving assistance system
La présente invention revendique la priorité de la demande française 2300714 déposée le 26.01 .2023 dont le contenu (texte, dessins et revendications) est ici incorporé par référence. The present invention claims priority from French application 2300714 filed on January 26, 2023, the content of which (text, drawings and claims) is herein incorporated by reference.
Domaine technique de l’invention Technical field of the invention
[0001] La présente invention concerne le domaine des interfaces homme-machine des véhicules automobiles. L’invention porte en particulier sur un procédé de gestion d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite d’un véhicule automobile. L’invention concerne également un dispositif mettant en œuvre un tel procédé. L’invention s’applique aux véhicules automobiles tels que les véhicules terrestres à moteur, notamment les voitures. [0001] The present invention relates to the field of human-machine interfaces of motor vehicles. The invention relates in particular to a method for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle. The invention also relates to a device implementing such a method. The invention applies to motor vehicles such as land motor vehicles, in particular cars.
Etat de la technique antérieure State of the prior art
[0002] On sait que certains véhicules automobiles modernes sont équipés de systèmes d’aide à la conduite qui fournissent une fonctionnalité d’assistance à la vision nocturne pour aider le conducteur à appréhender plus aisément la conduite de nuit. Pour fournir une telle fonctionnalité, le système d’aide à la conduite utilise une caméra infrarouge qui réalise des prises de vues de l’environnement de conduite devant le véhicule et il interagit avec une interface homme-machine du véhicule pour afficher ces prises de vues sur un écran agencé dans l’habitacle du véhicule, par exemple intégré au tableau de bord. Parfois, une telle fonctionnalité peut d’autant mieux aider le conducteur en produisant de manière automatisée une alerte lorsqu’une personne ou un animal se trouve à proximité du véhicule, par exemple sous une forme visuelle au moyen d’un témoin sur le tableau de bord. Cependant, jusqu’à présent, un conducteur ne dispose que de peu de moyens pour interagir avec une telle de fonctionnalité. En particulier, la commande d’une telle fonctionnalité requiert généralement de devoir naviguer parmi les menus de configuration qui permettent de modifier les paramètres de fonctionnement du système d’aide à la conduite, opération peu pratique qui s’avère d’autant plus contraignante à réaliser lorsque l’on considère en plus qu’une telle fonctionnalité est susceptible d’être utilisée de manière relativement fréquente par la plupart des conducteurs. [0002] We know that certain modern motor vehicles are equipped with driving assistance systems which provide night vision assistance functionality to help the driver understand night driving more easily. To provide such functionality, the driver assistance system uses an infrared camera which takes images of the driving environment in front of the vehicle and interacts with a human-machine interface of the vehicle to display these images. on a screen arranged in the passenger compartment of the vehicle, for example integrated into the dashboard. Sometimes, such a feature can further assist the driver by automatically producing an alert when a person or animal is near the vehicle, for example in a visual form by means of a warning light on the dashboard. edge. However, Until now, a driver has few ways to interact with such functionality. In particular, controlling such a functionality generally requires having to navigate through the configuration menus which make it possible to modify the operating parameters of the driving assistance system, an impractical operation which proves all the more restrictive to realize when we also consider that such a functionality is likely to be used relatively frequently by most drivers.
Résumé de l’invention Summary of the invention
[0003] L’invention cherche à remédier à cet inconvénient. Elle a en particulier pour but de fournir une solution pour améliorer l’ergonomie de la commande d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite d’un véhicule automobile. En outre, l’invention a pour objectif de permettre qu’une telle fonctionnalité d’assistance à la vision nocturne puisse être fournie et commandée au moyen d’un unique écran tactile d’une interface homme-machine d’un véhicule automobile. Par ce biais, l’invention souhaite minimiser le cout et la complexité des véhicules tout en contribuant favorablement au confort des conducteurs et à la sécurité de la conduite de nuit. [0003] The invention seeks to remedy this drawback. Its aim in particular is to provide a solution for improving the ergonomics of controlling a night vision assistance functionality provided by a driving assistance system of a motor vehicle. Furthermore, the invention aims to enable such night vision assistance functionality to be provided and controlled by means of a single touch screen of a man-machine interface of a motor vehicle. By this means, the invention aims to minimize the cost and complexity of vehicles while contributing favorably to the comfort of drivers and the safety of night driving.
[0004] Afin d’atteindre ces buts, l’invention concerne, selon un premier aspect, un procédé de gestion, par un dispositif informatique embarqué à bord d’un véhicule automobile, d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite du véhicule, le procédé comprenant les étapes de : i) provoquer l’affichage d’un pictogramme évolutif sur un écran tactile d’une interface homme-machine du véhicule, un paramètre d’affichage du pictogramme étant sélectionné en fonction d’un état de fonctionnement de la fonctionnalité ; ii) provoquer l’affichage sur l’écran d’une prise de vue réalisée au moyen d’une caméra infrarouge du système d’aide à la conduite dès lors qu’il est établi qu’un appui au niveau du pictogramme est effectué pendant une durée inférieure à une valeur seuil préétablie et que les conditions lumineuses dans l’environnement de conduite du véhicule permettent le fonctionnement de la caméra ; iii) provoquer l’affichage sur l’écran d’une prise de vue réalisée au moyen de la caméra dès lors qu’il est établi que des données caractérisant la présence d’une personne ou d’un animal devant le véhicule sont générées ; iv) provoquer la désactivation d’une alerte produite par la fonctionnalité en cas de présence d’une personne ou d’un animal devant le véhicule dès lors qu’il est établi qu’un appui au niveau du pictogramme est effectué pendant une durée supérieure à la valeur seuil ; v) provoquer l’affichage sur l’écran d’un contenu visuel explicitant une indisponibilité dès lors qu’il est établi qu’un appui au niveau du pictogramme est effectué pendant une durée inférieure à la valeur seuil et que les conditions de luminosité dans l’environnement de conduite du véhicule ne permettent pas le fonctionnement de la caméra ; et vi) provoquer l’affichage sur l’écran d’un contenu visuel explicitant un dysfonctionnement de la fonctionnalité dès lors qu’il est établi qu’un appui au niveau du pictogramme est effectué et que la fonctionnalité ou la caméra subit un dysfonctionnement. [0004] In order to achieve these goals, the invention relates, according to a first aspect, to a method of managing, by a computer device on board a motor vehicle, a night vision assistance functionality provided by a vehicle driving assistance system, the method comprising the steps of: i) causing the display of an evolving pictogram on a touch screen of a man-machine interface of the vehicle, a display parameter of the pictogram being selected according to an operating state of the functionality; ii) cause the display on the screen of a shot taken by means of an infrared camera of the driving assistance system once it is established that the pictogram is pressed during a duration less than a pre-established threshold value and that the light conditions in the vehicle's driving environment allow the camera to operate; iii) cause a shot taken using the camera to be displayed on the screen once it is established that data characterizing the presence of a person or animal in front of the vehicle is generated; iv) cause the deactivation of an alert produced by the functionality in the event of the presence of a person or animal in front of the vehicle once it is established that the pictogram is pressed for a longer duration at the threshold value; v) cause visual content to be displayed on the screen explaining unavailability once it is established that the pictogram is pressed for a duration less than the threshold value and that the brightness conditions in the vehicle's driving environment does not allow the camera to operate; and vi) cause the display on the screen of visual content explaining a malfunction of the functionality once it is established that the pictogram is pressed and that the functionality or the camera is experiencing a malfunction.
[0005] Selon une variante, l’étape ii) peut comprendre une étape consistant à interrompre l’affichage de la prise de vue dès lors qu’il est établi qu’un appui est effectué au niveau d’une portion de l’écran qui exclut le pictogramme. [0006] Selon une autre variante, l’étape iv) peut comprendre une étape consistant à provoquer une modification du paramètre d’affichage du pictogramme. [0005] According to a variant, step ii) may comprise a step consisting of interrupting the display of the shot as soon as it is established that a press is carried out at a portion of the screen which excludes the pictogram. [0006] According to another variant, step iv) may include a step consisting of causing a modification of the display parameter of the pictogram.
[0007] Selon un deuxième aspect, l’invention concerne un dispositif de de gestion d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite d’un véhicule automobile, le dispositif comprenant au moins une unité de traitement d’informations, comprenant au moins un processeur, et un support de stockage de données configurés pour mettre en œuvre un procédé tel que décrit ci-dessus. [0007] According to a second aspect, the invention relates to a device for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle, the device comprising at least one information processing unit, comprising at least one processor, and a data storage medium configured to implement a method as described above.
[0008] Selon un troisième aspect, l’invention concerne un programme d’ordinateur comprenant des instructions de code de programme pour l’exécution des étapes d’un procédé tel que décrit ci- dessus lorsque ledit programme est exécuté par au moins un processeur. [0008] According to a third aspect, the invention relates to a computer program comprising program code instructions for executing the steps of a method as described above when said program is executed by at least one processor .
[0009] Selon un quatrième aspect, l’invention concerne un support utilisable dans un ordinateur sur lequel un programme tel que décrit ci- dessus est enregistré. [0009] According to a fourth aspect, the invention relates to a medium usable in a computer on which a program as described above is recorded.
[0010] Selon un cinquième aspect, l’invention concerne un véhicule automobile comprenant un dispositif tel que décrit ci-dessus. [0010] According to a fifth aspect, the invention relates to a motor vehicle comprising a device as described above.
Brève description des figures Brief description of the figures
[0011] 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 characteristics and advantages of the invention will appear on examination of the detailed description below, and the appended drawings, in which:
[0012] [Fig- 1] est un schéma illustrant un véhicule automobile selon l’invention ; [0012] [Fig-1] is a diagram illustrating a motor vehicle according to the invention;
[0013] [Fig. 2] est un diagramme fonctionnel d’un dispositif selon l’invention ; et [0014] [Fig. 3] est un organigramme des étapes d’un procédé selon l’invention. [0013] [Fig. 2] is a functional diagram of a device according to the invention; And [0014] [Fig. 3] is a flowchart of the steps of a process according to the invention.
Description détaillée de l’invention Detailed description of the invention
[0015] Sur la figure 1 est illustré schématiquement un véhicule automobile 1 selon l’invention. Celui-ci est équipé d’un système d’aide à la conduite 2, qui fournit de manière conventionnelle une fonctionnalité d’assistance à la vision nocturne en utilisant une caméra infrarouge et en interagissant avec une interface homme-machine 3 du véhicule pour afficher des prises de vues réalisées avec la caméra sur un écran tactile 4 de l’interface homme-machine 3 qui est agencé dans l’habitacle du véhicule 1, par exemple au niveau de la console centrale. De manière avantageuse, le véhicule 1 selon l’invention embarque en plus un dispositif 100 de gestion d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite d’un véhicule automobile au sens de la présente invention, tel que décrit ci- dessous, qui met en œuvre un procédé de gestion d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite d’un véhicule automobile au sens de la présente invention, tel que décrit plus bas. [0015] In Figure 1 a motor vehicle 1 according to the invention is schematically illustrated. This is equipped with a driving assistance system 2, which conventionally provides night vision assistance functionality by using an infrared camera and interacting with a human-machine interface 3 of the vehicle to display shots taken with the camera on a touch screen 4 of the man-machine interface 3 which is arranged in the passenger compartment of the vehicle 1, for example at the level of the central console. Advantageously, the vehicle 1 according to the invention also embeds a device 100 for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle within the meaning of the present invention, as described below, which implements a method for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle within the meaning of the present invention, as described below.
[0016] Lors de la mise en œuvre du procédé, un pictogramme 5 évolutif affiché dans une interface graphique diffusée sur l’écran 4 renseigne sur l’état de fonctionnement de la fonctionnalité d’assistance à la vision nocturne, préférentiellement en utilisant une couleur particulière selon que la fonctionnalité est active, inactive, en veille, en défaut, etc. De manière avantageuse, le conducteur peut commander la fonctionnalité, càd. modifier son état de fonctionnement, d’un simple appui du doigt effectué au niveau du pictogramme 5. Il peut, notamment, provoquer l’affichage sur l’écran d’une prise de vue 6 réalisée au moyen de la caméra en effectuant un appui court au niveau du pictogramme 5. De même, en effectuant un appui long, le conducteur peut avantageusement désactiver une alerte produite de manière automatique par la fonctionnalité de vision nocturne en cas de présence d’une personne ou d’un animal devant le véhicule. On permet ainsi une interaction plus ergonomique et une commande plus intuitive d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite d’un véhicule automobile. [0016] During the implementation of the method, an evolving pictogram 5 displayed in a graphical interface broadcast on the screen 4 provides information on the operating state of the night vision assistance functionality, preferably using a color particular depending on whether the functionality is active, inactive, on standby, faulty, etc. Advantageously, the driver can control the functionality, i.e. modify its operating state, with a simple press of the finger carried out at the level of the pictogram 5. It can, in particular, cause the display on the screen of a shot 6 taken using the camera by pressing short at the level of pictogram 5. Likewise, by carrying out a long press, the The driver can advantageously deactivate an alert produced automatically by the night vision functionality in the event of the presence of a person or animal in front of the vehicle. This allows for more ergonomic interaction and more intuitive control of a night vision assistance functionality provided by a driving assistance system of a motor vehicle.
[0017] Le dispositif 100 de gestion d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite d’un véhicule automobile selon l’invention est illustré sur la figure 2. Il s’agit fondamentalement d’un appareil informatique, qui comprend au moins une unité de traitement d’informations 101, comportant un ou plusieurs processeurs, un support de stockage de données 102, sur lequel est notamment enregistré un programme qui comprend des instructions de code de programme pour l’exécution des étapes du procédé selon l’invention décrit ci-après, et une interface d’entrée et sortie 103 permettant la réception et l’émission de données. [0017] The device 100 for managing a night vision assistance functionality provided by a driving assistance system of a motor vehicle according to the invention is illustrated in Figure 2. It is fundamentally of a computing device, which comprises at least one information processing unit 101, comprising one or more processors, a data storage medium 102, on which is in particular recorded a program which comprises program code instructions for the execution of the steps of the method according to the invention described below, and an input and output interface 103 allowing the reception and transmission of data.
[0018] Préférentiellement, le dispositif 100 selon l’invention est hébergé sur un calculateur indépendant et il interagit par le biais de son interface d’entrée et sortie 103 et au moyen d’un réseau de communication filaire du véhicule (e.g. CAN, Ethernet) - matérialisé sur la figure 1 par les flèches à double sens - avec le système d’aide à la conduite 2 et avec l’interface homme- machine 3. Alternativement, le dispositif 100 selon l’invention fait partie intégrante d’un calculateur du système d’aide à la conduite 2 ou de l’interface homme-machine 3. Ainsi, le dispositif 100 selon l’invention peut, notamment, provoquer l’affichage d’un pictogramme et/ou d’un contenu visuel sur l’écran 4 de l’interface homme-machine 3, il peut établir si un appui du doigt est effectué au niveau du pictogramme 5, il peut provoquer l’affichage sur l’écran 4 d’une prise de vue 6 réalisée au moyen de la caméra infrarouge du système d’aide à la conduite 2 et il peut provoquer la désactivation d’une alerte produite par la fonctionnalité d’assistance à la vision nocturne en cas de présence d’une personne ou d’un animal devant le véhicule. [0018] Preferably, the device 100 according to the invention is hosted on an independent computer and it interacts via its input and output interface 103 and by means of a wired vehicle communication network (eg CAN, Ethernet ) - shown in Figure 1 by the two-way arrows - with the driving assistance system 2 and with the man-machine interface 3. Alternatively, the device 100 according to the invention is an integral part of a computer of the driving assistance system 2 or the man-machine interface 3. Thus, the device 100 according to the invention can, in particular, cause the display of a pictogram and/or visual content on the screen 4 of the man-machine interface 3, it can establish whether a finger is pressed at the level of the pictogram 5, it can cause the display on the screen 4 of a shot 6 taken by means of the infrared camera of the system driving assistance 2 and it can cause the deactivation of an alert produced by the night vision assistance functionality in the event of the presence of a person or animal in front of the vehicle.
[0019] Selon l’invention, tous les éléments décrits ci-dessus contribuent pour permettre la mise en œuvre d’un procédé de gestion d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite d’un véhicule automobile, tel que décrit ci-dessous en lien avec les figures 1 et 3. [0019] According to the invention, all the elements described above contribute to enabling the implementation of a method for managing a night vision assistance functionality provided by a driving assistance system. a motor vehicle, as described below in connection with Figures 1 and 3.
[0020] Selon une première étape 201 du procédé selon l’invention, le dispositif 100 selon l’invention provoque l’affichage d’un pictogramme 5 évolutif sur l’écran 4 de l’interface homme-machine 3 du véhicule 1, en sélectionnant un paramètre d’affichage du pictogramme, préférentiellement une couleur d’affichage, en fonction d’un état de fonctionnement de la fonctionnalité. Pour ce faire, le dispositif 100 selon l’invention procède en interagissant d’abord avec le système d’aide à la conduite 2 pour obtenir des données caractérisant un état de fonctionnement de la fonctionnalité d’assistance à la vision nocturne (e.g. active, inactive, en veille, en défaut, etc.). Il interagit ensuite avec l’interface homme-machine 3 pour provoquer l’affichage du pictogramme 5 en fonction de l’état de fonctionnement défini par les données préalablement obtenues. Ainsi, grâce à cette première étape du procédé selon l’invention, on peut avantageusement renseigner de manière ergonomique et intuitive le conducteur au sujet de l'état de fonctionnement de la fonctionnalité d’assistance à la vision nocturne fournie par le système d’aide à la conduite 2 du véhicule 1 selon l’invention directement via l’écran 4 de l’interface homme-machine 3 du véhicule 1. [0020] According to a first step 201 of the method according to the invention, the device 100 according to the invention causes the display of an evolving pictogram 5 on the screen 4 of the man-machine interface 3 of the vehicle 1, in selecting a display parameter of the pictogram, preferably a display color, depending on an operating state of the functionality. To do this, the device 100 according to the invention proceeds by first interacting with the driving assistance system 2 to obtain data characterizing an operating state of the night vision assistance functionality (e.g. active, inactive, standby, faulty, etc.). It then interacts with the man-machine interface 3 to cause the display of the pictogram 5 according to the operating state defined by the data previously obtained. Thus, thanks to this first step of the method according to the invention, it is advantageously possible to inform the driver in an ergonomic and intuitive manner about the operating state of the night vision assistance functionality provided by the assistance system. to driving 2 of the vehicle 1 according to the invention directly via the screen 4 of the man-machine interface 3 of the vehicle 1.
[0021] Selon une deuxième étape 202 du procédé selon l’invention, le dispositif 100 selon l’invention provoque l’affichage sur l’écran 4 d’une prise de vue réalisée au moyen de la caméra infrarouge du système d’aide à la conduite 2 dès lors qu’il est établi qu’un appui au niveau du pictogramme 5 est effectué pendant une durée inférieure à une valeur seuil préétablie (e.g. 10ms) et que les conditions lumineuses dans l’environnement de conduite du véhicule permettent le fonctionnement de la caméra. Pour ce faire, le dispositif 100 selon l’invention interagit avec le système d’aide à la conduite 2 pour déterminer des données caractérisant les conditions de luminosité dans l’environnement de conduite du véhicule (i.e. jour ou nuit), que le système d’aide à la conduite 2 détermine au moyen, par exemple, d’un détecteur de lumière intégré à la caméra, et il interagit avec l’interface homme-machine 3 pour déterminer si un appui au niveau du pictogramme 5 est effectué pendant une durée inférieure à la valeur seuil. Ensuite, s’il établit qu’un appui court est effectué au niveau du pictogramme 5 et que les conditions lumineuses dans l’environnement de conduite du véhicule permettent le fonctionnement de la caméra, autrement dit qu’il fait nuit (ou sombre — e.g. tunnel), le dispositif 100 selon l’invention interagit alors avec l’interface homme-machine 3 pour provoquer l’affichage sur l’écran 4 d’une prise de vue réalisée au moyen de la caméra, comme illustré sur la figure 1 sur la partie à droite de l’écran. Ainsi, grâce à cette deuxième étape du procédé, le conducteur peut avantageusement interagir avec la fonctionnalité et commander selon sa volonté et en temps réel l’affichage d’une prise de vue réalisée au moyen de la caméra d’un simple appui court du doigt effectué au niveau du pictogramme 5. De manière avantageuse, une prise de vue réalisée au moyen de la caméra est affichée seulement si les conditions de luminosité dans l’environnement de conduite du véhicule permettent le fonctionnement de la caméra, càd. dès lors que le véhicule circule de nuit. En outre, selon une variante, le dispositif 100 selon l’invention procède ensuite en réalisant une étape subsidiaire au cours de laquelle il interrompt l’affichage de la prise de vue dès lors qu’il établit qu’un appui est effectué au niveau d’une portion de l’écran qui exclut le pictogramme 5. Grâce à cette étape subsidiaire, le conducteur peut donc avantageusement interrompre tout aussi aisément l’affichage d’une prise de vue qui ne lui est plus utile d’un simple appui court du doigt effectué sur toute la portion de l’écran qui exclut le pictogramme 5. [0022] Selon une troisième étape 203 du procédé selon l’invention, le dispositif 100 selon l’invention provoque l’affichage sur l’écran 4 d’une prise de vue réalisée au moyen de la caméra dès lors qu’il établit que des données caractérisant la présence d’une personne ou d’un animal devant le véhicule sont générées. Pour ce faire, le dispositif 100 selon l’invention interagit avec le système d’aide à la conduite 2, qui, selon l’invention, est configuré pour fournir une fonctionnalité d’assistance à la vision nocturne qui, de manière conventionnelle, permet de détecter la présence de personnes ou d’animaux se trouvant devant le véhicule. Afin de permettre cela, le système d’aide à la conduite 2 comprend, par exemple, un module de détection basé sur une intelligence artificielle entraînée pour détecter des personnes ou des animaux au sein de prises de vues réalisée au moyen d’une caméra infrarouge. Ainsi, le système d’aide à la conduite 2 du véhicule 1 selon l’invention est à minima configuré pour générer de temps à autre des données caractérisant la présence d’une personne ou d’un animal devant le véhicule. Et lorsqu’il établit que de telles données sont générées par le système d’aide à la conduite 2, ce qui implique qu’une personne ou un animal est présent devant le véhicule, le dispositif 100 selon l’invention procède avantageusement en provoquant l’affichage sur l’écran 4 d’une prise de vue réalisée au moyen de la caméra. Il offre ainsi au conducteur un moyen on ne peut plus ergonomique pour l’aider à appréhender certaines des situations les plus dangereuses de la conduite de nuit. En particulier, on n’imagine aisément le bénéfice que cet affichage en temps réel sur l’écran 4 de l’interface homme-machine 3 peut permettre, par exemple, pour diminuer le nombre d’accidents impliquant des animaux sauvages. [0021] According to a second step 202 of the method according to the invention, the device 100 according to the invention causes the display on the screen 4 of a shot taken by means of the infrared camera of the assistance system there driving 2 as soon as it is established that a press at the level of pictogram 5 is carried out for a duration less than a pre-established threshold value (eg 10ms) and that the light conditions in the driving environment of the vehicle allow the operation of the camera. To do this, the device 100 according to the invention interacts with the driving assistance system 2 to determine data characterizing the light conditions in the driving environment of the vehicle (ie day or night), which the system the driving aid 2 determines by means, for example, of a light detector integrated into the camera, and it interacts with the man-machine interface 3 to determine whether a press at the level of the pictogram 5 is carried out for a duration lower than the threshold value. Then, if it establishes that a short press is made at the level of pictogram 5 and that the light conditions in the vehicle's driving environment allow the camera to operate, in other words that it is night (or dark — eg tunnel), the device 100 according to the invention then interacts with the man-machine interface 3 to cause the display on the screen 4 of a shot taken using the camera, as illustrated in Figure 1 on the right side of the screen. Thus, thanks to this second step of the method, the driver can advantageously interact with the functionality and control according to his will and in real time the display of a shot taken by means of the camera with a simple short press of the finger carried out at the level of pictogram 5. Advantageously, a shot taken using the camera is displayed only if the light conditions in the vehicle's driving environment allow the camera to operate, i.e. when the vehicle is traveling at night. Furthermore, according to a variant, the device 100 according to the invention then proceeds by carrying out a subsidiary step during which it interrupts the display of the shot as soon as it establishes that a press is carried out at the level of 'a portion of the screen which excludes pictogram 5. Thanks to this subsidiary step, the driver can therefore advantageously interrupt just as easily the display of a shot which is no longer useful to it with a simple short press of the finger carried out on the entire portion of the screen which excludes the pictogram 5. [0022] According to a third step 203 of the method according to invention, the device 100 according to the invention causes the display on the screen 4 of a shot taken by means of the camera as soon as it establishes that data characterizing the presence of a person or an animal in front of the vehicle are generated. To do this, the device 100 according to the invention interacts with the driving assistance system 2, which, according to the invention, is configured to provide night vision assistance functionality which, in a conventional manner, allows to detect the presence of people or animals in front of the vehicle. To enable this, the driving assistance system 2 comprises, for example, a detection module based on artificial intelligence trained to detect people or animals in shots taken using an infrared camera. . Thus, the driving assistance system 2 of the vehicle 1 according to the invention is at least configured to generate from time to time data characterizing the presence of a person or an animal in front of the vehicle. And when it establishes that such data are generated by the driving assistance system 2, which implies that a person or an animal is present in front of the vehicle, the device 100 according to the invention advantageously proceeds by causing the display on screen 4 of a shot taken using the camera. It thus offers the driver an extremely ergonomic means to help them deal with some of the most dangerous situations of night driving. In particular, it is not easy to imagine the benefit that this real-time display on the screen 4 of the man-machine interface 3 can allow, for example, to reduce the number of accidents involving wild animals.
[0023] Selon une quatrième étape 204 du procédé selon l’invention, le dispositif 100 selon l’invention provoque la désactivation d’une alerte produite par la fonctionnalité en cas de présence d’une personne ou d’un animal devant le véhicule dès lors qu’il établit qu’un appui au niveau du pictogramme 5 est effectué pendant une durée supérieure à la valeur seuil. Pour ce faire, le dispositif 100 selon l’invention interagit tour à tour avec l’interface homme-machine 3 afin de déterminer si un appui long est effectué au niveau du pictogramme 5 et avec le système d’aide à la conduite 2 pour commander la désactivation d’une alerte produite par la fonctionnalité d’assistance à la vision nocturne en cas de présence d’une personne ou d’un animal devant le véhicule, conformément à ce qui a été expliqué ci-dessus. Grâce à cette quatrième étape du procédé, le dispositif 100 selon l’invention offre donc une manière on ne peut plus pratique pour permettre au conducteur de désactiver une alerte produite par la fonctionnalité d’assistance à la vision nocturne fournie par le système d’aide à la conduite 2 du véhicule 1 selon l’invention qui consiste simplement à effectuer appui long du doigt au niveau du pictogramme 5. En outre, selon une variante, le dispositif 100 selon l’invention procède ensuite en réalisant une étape subsidiaire au cours de laquelle il provoque une modification du paramètre d’affichage du pictogramme 5 pour refléter de manière intuitive un état inactif de l’alerte de présence de personnes ou d’animaux. [0023] According to a fourth step 204 of the method according to the invention, the device 100 according to the invention causes the deactivation of an alert produced by the functionality in the event of the presence of a person or an animal in front of the vehicle as soon as it establishes that support at the level of pictogram 5 is carried out for a duration greater than the threshold value. To do this, the device 100 according to the invention interacts in turn with the man-machine interface 3 in order to determine whether a long press is carried out at the level of the pictogram 5 and with the driving assistance system 2 to control deactivation of an alert produced by the night vision assistance functionality in the event of the presence of a person or animal in front of the vehicle, in accordance with what has been explained above. Thanks to this fourth step of the method, the device 100 according to the invention therefore offers a very practical way to allow the driver to deactivate an alert produced by the night vision assistance functionality provided by the assistance system to driving 2 of the vehicle 1 according to the invention which simply consists of carrying out a long press of the finger at the level of the pictogram 5. In addition, according to a variant, the device 100 according to the invention then proceeds by carrying out a subsidiary step during which it causes a modification of the display parameter of pictogram 5 to intuitively reflect an inactive state of the alert for the presence of people or animals.
[0024] Selon une cinquième étape 205 du procédé selon l’invention, le dispositif 100 selon l’invention provoque l’affichage sur l’écran 4 d’un contenu visuel explicitant une indisponibilité dès lors qu’il établit qu’un appui au niveau du pictogramme 5 est effectué pendant une durée inférieure à la valeur seuil et que les conditions de luminosité dans l’environnement de conduite du véhicule ne permettent pas le fonctionnement de la caméra. En d’autres termes, à l’inverse de la deuxième étape 202 du procédé décrite plus haut, s’il établit qu’un appui court est effectué au niveau du pictogramme 5 et que les conditions lumineuses dans l’environnement de conduite du véhicule ne permettent pas le fonctionnement de la caméra, autrement dit qu’il fait jour, le dispositif 100 selon l’invention interagit alors avec l’interface homme-machine 3 pour provoquer l’affichage sur l’écran 4 d’un contenu visuel explicitant une indisponibilité de la fonctionnalité, par exemple sous forme de texte. On peut ainsi aisément informer un conducteur de l’indisponibilité de jour de la fonctionnalité d’assistance à la vision nocturne fournie par le système d’aide à la conduite 2 du véhicule 1 selon l’invention. [0024] According to a fifth step 205 of the method according to the invention, the device 100 according to the invention causes the display on the screen 4 of visual content explaining unavailability since it establishes that pressing the level of pictogram 5 is carried out for a duration less than the threshold value and the light conditions in the vehicle's driving environment do not allow the camera to operate. In other words, unlike the second step 202 of the method described above, if it establishes that a short press is carried out at the level of pictogram 5 and that the light conditions in the driving environment of the vehicle do not allow the camera to operate, in other words it is daylight, the device 100 according to the invention then interacts with the man-machine interface 3 to cause the display on the screen 4 of visual content explaining an unavailability of the functionality, for example in the form of text. We can thus easily inform a driver of the unavailability during the day of the night vision assistance functionality provided by the driving assistance system 2 of the vehicle 1 according to the invention.
[0025] Selon une sixième étape 206 du procédé selon l’invention, le dispositif 100 selon l’invention provoque l’affichage sur l’écran 4 d’un contenu visuel explicitant un dysfonctionnement de la fonctionnalité dès lors qu’il établit qu’un appui au niveau du pictogramme 5 est effectué tandis que la fonctionnalité ou la caméra subit un dysfonctionnement. Comme lors de l’étape précédente, on peut ainsi tout aussi aisément informer un conducteur d’un défaut de fonctionnement de la fonctionnalité d’assistance à la vision nocturne, par exemple si le flux de la caméra est interrompu, ou de la caméra, par exemple lorsque celle-ci est obstruée par des salissures. [0025] According to a sixth step 206 of the method according to the invention, the device 100 according to the invention causes the display on the screen 4 of visual content explaining a malfunction of the functionality since it establishes that icon 5 is pressed while the functionality or camera malfunctions. As in the previous step, it is thus just as easy to inform a driver of a malfunction of the night vision assistance functionality, for example if the camera feed is interrupted, or of the camera, for example when it is blocked by dirt.
[0026] Ainsi, grâce au procédé et au dispositif selon l’invention décrits ci- dessus, une solution est fournie pour améliorer significativement l’ergonomie d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite d’un véhicule automobile, notamment en permettant à un conducteur de commander une telle fonctionnalité en effectuant de simples appuis sur un écran tactile. Une telle fonctionnalité d’assistance à la vision nocturne peut ainsi être fournie et commandée au moyen d’un unique écran tactile d’une interface homme-machine d’un véhicule automobile. Par ces aspects, l’invention contribue à minimiser le cout et la complexité des véhicules tout en apportant plus de confort pour les conducteurs et plus de sécurité pour la conduite de nuit. [0026] Thus, thanks to the method and the device according to the invention described above, a solution is provided to significantly improve the ergonomics of a night vision assistance functionality provided by a night vision assistance system. driving a motor vehicle, in particular by allowing a driver to control such functionality by performing simple presses on a touch screen. Such night vision assistance functionality can thus be provided and controlled by means of a single touch screen of a man-machine interface of a motor vehicle. Through these aspects, the invention contributes to minimizing the cost and complexity of vehicles while providing more comfort for drivers and more safety for night driving.

Claims

REVENDICATIONS : CLAIMS:
1. Procédé de gestion, par un dispositif informatique (100) embarqué à bord d’un véhicule automobile (1), d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite (2) du véhicule, caractérisé en ce que le procédé comprend les étapes de : i) provoquer l’affichage d’un pictogramme (5) évolutif sur un écran (4) tactile d’une interface homme-machine (3) du véhicule, un paramètre d’affichage du pictogramme étant sélectionné en fonction d’un état de fonctionnement de la fonctionnalité ; ii) provoquer l’affichage sur l’écran d’une prise de vue (6) réalisée au moyen d’une caméra infrarouge du système d’aide à la conduite (2) dès lors qu’il est établi qu’un appui au niveau du pictogramme (5) est effectué pendant une durée inférieure à une valeur seuil préétablie et que les conditions lumineuses dans l’environnement de conduite du véhicule permettent le fonctionnement de la caméra ; iii) provoquer l’affichage sur l’écran (4) d’une prise de vue (6) réalisée au moyen de la caméra dès lors qu’il est établi que des données caractérisant la présence d’une personne ou d’un animal devant le véhicule sont générées ; iv) provoquer la désactivation d’une alerte produite par la fonctionnalité en cas de présence d’une personne ou d’un animal devant le véhicule dès lors qu’il est établi qu’un appui au niveau du pictogramme (5) est effectué pendant une durée supérieure à la valeur seuil ; v) provoquer l’affichage sur l’écran (4) d’un contenu visuel explicitant une indisponibilité dès lors qu’il est établi qu’un appui au niveau du pictogramme (5) est effectué pendant une durée inférieure à la valeur seuil et que les conditions de luminosité dans l’environnement de conduite du véhicule ne permettent pas le fonctionnement de la caméra ; et vi) provoquer l’affichage sur l’écran (4) d’un contenu visuel explicitant un dysfonctionnement de la fonctionnalité dès lors qu’il est établi qu’un appui au niveau du pictogramme est effectué et que la fonctionnalité ou la caméra subit un dysfonctionnement. 1. Method for managing, by a computer device (100) on board a motor vehicle (1), a night vision assistance functionality provided by a driving assistance system (2) of the vehicle, characterized in that the method comprises the steps of: i) causing the display of an evolving pictogram (5) on a touch screen (4) of a man-machine interface (3) of the vehicle, a parameter d the display of the pictogram being selected according to an operating state of the functionality; ii) cause the display on the screen of a shot (6) taken by means of an infrared camera of the driving assistance system (2) as soon as it is established that pressing the level of the pictogram (5) is carried out for a duration less than a pre-established threshold value and that the light conditions in the driving environment of the vehicle allow the operation of the camera; iii) cause the display on the screen (4) of a shot (6) taken by means of the camera as soon as it is established that data characterizing the presence of a person or an animal in front of the vehicle are generated; iv) cause the deactivation of an alert produced by the functionality in the event of the presence of a person or an animal in front of the vehicle once it is established that the pictogram (5) is pressed during a duration greater than the threshold value; v) cause the display on the screen (4) of visual content explaining unavailability once it is established that the pictogram (5) is pressed for a duration less than the threshold value and that the light conditions in the vehicle's driving environment do not allow the camera to operate; And vi) cause the display on the screen (4) of visual content explaining a malfunction of the functionality once it is established that a press at the level of the pictogram is carried out and that the functionality or the camera undergoes a dysfunction.
2. Procédé selon la revendication 1, caractérisé en ce que l’étape ii) comprend une étape consistant à interrompre l’affichage de la prise de vue dès lors qu’il est établi qu’un appui est effectué au niveau d’une portion de l’écran (4) qui exclut le pictogramme. 2. Method according to claim 1, characterized in that step ii) comprises a step consisting of interrupting the display of the shot as soon as it is established that a support is carried out at a portion of the screen (4) which excludes the pictogram.
3. Procédé selon l’une des revendications précédentes, caractérisé en ce que l’étape iv) comprend une étape consistant à provoquer une modification du paramètre d’affichage du pictogramme. 3. Method according to one of the preceding claims, characterized in that step iv) comprises a step consisting of causing a modification of the display parameter of the pictogram.
4. Dispositif (100) de gestion d’une fonctionnalité d’assistance à la vision nocturne fournie par un système d’aide à la conduite (2) d’un véhicule automobile (1), caractérisé en ce que le dispositif comprend au moins une unité de traitement d’informations (101), comprenant au moins un processeur, et un support de stockage de données (102), sur lequel est enregistré un programme qui comprend des instructions de code de programme configurées pour mettre en œuvre un procédé selon l’une quelconque des revendications précédentes. 4. Device (100) for managing a night vision assistance functionality provided by a driving assistance system (2) of a motor vehicle (1), characterized in that the device comprises at least an information processing unit (101), comprising at least one processor, and a data storage medium (102), on which a program is recorded which comprises program code instructions configured to implement a method according to any of the preceding claims.
5. Programme d’ordinateur comprenant des instructions de code de programme pour l’exécution des étapes d’un procédé selon l’une quelconque des revendications 1 à 3 lorsque ledit programme est exécuté sur un dispositif de gestion d’une fonctionnalité d’assistance à la vision nocturne fournir par un système d’aide à la conduite selon la revendication 4 par au moins un processeur. 5. Computer program comprising program code instructions for executing the steps of a method according to any one of claims 1 to 3 when said program is executed on a device for managing an assistance functionality night vision provided by a driving assistance system according to claim 4 by at least one processor.
6. Support utilisable dans un ordinateur, caractérisé en ce qu’un programme selon la revendication 5 y est enregistré. 6. Support usable in a computer, characterized in that a program according to claim 5 is recorded there.
7. Véhicule automobile (1), caractérisé en ce qu’il comprend un dispositif (100) selon la revendication 4. 7. Motor vehicle (1), characterized in that it comprises a device (100) according to claim 4.
PCT/FR2023/052031 2023-01-26 2023-12-18 Management of a night vision assistance functionality provided by a driving assistance system of a motor vehicle WO2024156945A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300714A1 (en) 1975-02-17 1976-09-10 Rouyres Maurice Multiple plastic carrier bag package - has weld lines joining bags and forming compartments in bags
US9350926B2 (en) * 2012-12-11 2016-05-24 Guangzhou Sat Infrared Technology Co. Ltd. Infrared night driving assistant system for a motor vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300714A1 (en) 1975-02-17 1976-09-10 Rouyres Maurice Multiple plastic carrier bag package - has weld lines joining bags and forming compartments in bags
US9350926B2 (en) * 2012-12-11 2016-05-24 Guangzhou Sat Infrared Technology Co. Ltd. Infrared night driving assistant system for a motor vehicle

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