EP3137937A1 - Head-mounted display system comprising heading selection means and associated selection method - Google Patents

Head-mounted display system comprising heading selection means and associated selection method

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Publication number
EP3137937A1
EP3137937A1 EP15718233.8A EP15718233A EP3137937A1 EP 3137937 A1 EP3137937 A1 EP 3137937A1 EP 15718233 A EP15718233 A EP 15718233A EP 3137937 A1 EP3137937 A1 EP 3137937A1
Authority
EP
European Patent Office
Prior art keywords
heading
head support
display
head
aircraft
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Withdrawn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
EP15718233.8A
Other languages
German (de)
French (fr)
Inventor
Cécile Andre
Xavier Servantie
Laurent Laluque
François Michel
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.)
Thales SA
Original Assignee
Thales 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 Thales SA filed Critical Thales SA
Publication of EP3137937A1 publication Critical patent/EP3137937A1/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G06F3/012—Head tracking input arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C23/00—Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
    • G01C23/005—Flight directors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/22—Aiming or laying means for vehicle-borne armament, e.g. on aircraft
    • F41G3/225—Helmet sighting systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0141—Head-up displays characterised by optical features characterised by the informative content of the display
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0187—Display position adjusting means not related to the information to be displayed slaved to motion of at least a part of the body of the user, e.g. head, eye
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • G06F3/04817—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance using icons
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/04842—Selection of displayed objects or displayed text elements

Definitions

  • Head display system having course selection means and method of selecting same
  • the field of the invention is that of display systems mounted on the head of the crew members of an aircraft. More specifically, the invention relates to the display and heading selection by this type of display system.
  • Helmet or head visualization systems have been used extensively for aeronautical applications for several decades.
  • a head display system mainly comprises two subsets.
  • the first subset is a headset or a headband equipped with a viewing system projecting to the eye or the eyes of the user a collimated image superimposed on the outside.
  • Headset means a head protection structure, said structure carrying a number of speech devices or visualization or detection.
  • the English equivalent is "helmet”.
  • the term “headband” refers to a structure carrying a certain number of voice or visualization or detection devices and which does not necessarily provide a head protection function.
  • the English equivalent is "headset”.
  • the system according to the invention is indifferently a helmet or a head support.
  • the second subassembly is a head posture detection system for locating in space, with respect to a known reference, generally related to an aircraft, the position and orientation of the helmet or the headband.
  • the main function of the visualization system is to be able to present, superimposed on the external landscape, so-called "conformal" information, that is to say, displayed virtually in the exact direction that they would occupy in the external landscape.
  • the system displays a video image from a sensor and having a certain number of objects, the represented objects of this image are superimposed exactly on the objects present in the field.
  • synthetic representations of objects such as tracks, targets or directions.
  • the object of the invention is to simplify this operation by using the own resources of the helmet or head display systems and in particular to display compliant information.
  • the subject of the invention is an aircraft head-display system comprising a head support, a display device, a posture detection of said head support, means for detecting the current heading of an aircraft and graphic generating means of said current heading, characterized in that the system comprises control means, display and caps selection, said means arranged so as:
  • the display of the heading value is carried out in a conformal position, that is to say in the exact direction corresponding to the heading direction.
  • the display of the heading value is made at the edge of the field of the display device with an icon representative of the direction in which the heading is located.
  • the invention also relates to a method for displaying, managing and selecting the heading in an aircraft head-up display system, said display system comprising a head support, a display device, a posture detection of said head support. head, means for detecting the current heading of an aircraft and means for graphically generating said current heading, characterized in that the method comprises at least:
  • the method comprises:
  • Figures 1 to 4 show the various possible displays of heading in an aircraft head display system according to the invention.
  • the head display system according to the invention comprises:
  • a head support or an equipped helmet comprising an optoelectronic display assembly.
  • This display assembly can be monocular or binocular.
  • this set gives a collimated image from a display superimposed on the outside landscape by a combiner or optical mixer;
  • a posture detection system of the head support or the helmet making it possible to determine the position of the support or the helmet in the reference mark of the aircraft.
  • detection systems There are different detection systems that are well known to those skilled in the art. Magnetic detection systems in which a receiver measures the components of a known electromagnetic field and optical detection systems comprising a transmitter and a receiver capable of determining the position and the orientation of this transmitter by shape recognition.
  • the position of the aircraft in a terrestrial reference is itself known by means of various sensors such as the aircraft's inertial unit;
  • This symbology generally includes the basic information necessary for piloting (indications of speed, altitude, attitude, horizon, etc.). To ensure this function, the various sensors of the aircraft provide the computer with the necessary information.
  • the helmet orientation detection system gives it position and orientation information for displaying the symbology in a compliant manner, ie in a landmark independent of aircraft movements and movements. helmet;
  • Control means generally one or more control stations for selecting, modifying or validating the information and data displayed by the display device. These control means may also be arranged on the control stick or be activated by a voice command.
  • the calculator also provides the specific functions of the invention related to the heading display. By way of nonlimiting examples, they are shown in FIGS. 1 to 4. These figures schematically represent the display of the heading in a helmet display device. In these figures, the rectangular periphery represents the limits of the field of the display device. The landscape P is represented symbolically by ridge lines in these figures. For the sake of clarity, all the symbology unrelated to the display of the caps has been removed from the figures.
  • the system only displays in the center and at the top of the field of view the current heading C1, that is to say the actual one followed by the aircraft at a time t.
  • the displayed value of the cap C1 is "266". All displayed values are in degrees.
  • the pilot has validated the heading display function according to the invention.
  • the system displays the setpoint C2.
  • the displayed value of heading C2 is "260".
  • It also displays a third cap C3 called “cap support” corresponding to the direction of the head support in a landmark.
  • the value of heading C3 is given by the information derived from the posture detection of said head support and the current heading detection means.
  • the displayed value of heading C3 is "271".
  • the system also displays a first vertical bar ⁇ 1 ⁇ 2 whose bearing intersects the exact direction of the setpoint heading C2 and a second vertical bar B C 3 whose bearing intersects the exact direction of the cap C3. This second bar is, by nature, disposed in the center of the field of the display device and remains fixed.
  • Figure 3 shows the evolution of the symbology of the caps when the pilot turns his head to designate another direction.
  • the value of C2 setpoint does not change. It remains at the value of "260".
  • this heading leaves the field of view, its value remains indicated in the field of the visualization device, but its representation bar B C 2 which was in conformal position disappears. It is replaced by an icon that indicates that the setpoint is out of the field of view. In Figure 3, for example, this icon is a chevron whose tip is turned towards the direction of the setpoint.
  • the value of heading C3 that depends on the posture of the helmet changes. It goes to the value "302", the pilot having turned his head, in this example, by 31 degrees.
  • the second vertical bar B C 3 remains fixed in the reference of the helmet visual.
  • the pilot can, at any moment, validate the direction of the support heading which then becomes the new setpoint heading.
  • the pilot validated the support heading C3 of FIG. 3, the value of which was "302”.
  • the new setpoint value C2 is now "302".
  • the two vertical bars B C 2 and B C 3, indicating caps C2 and C3 are combined as shown in FIG. 4.
  • the value of the current heading C1 remained unchanged, indicating that the aircraft did not change direction while the pilot turned his head.
  • the heading associated with the direction of the head at the time of validation is the new course taken into account by the navigation system of the aircraft. If the autopilot is engaged, the new heading is the one followed by the aircraft, if the autopilot is not engaged, the pilot manually follows the new course indicated in the display device.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Theoretical Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Human Computer Interaction (AREA)
  • Navigation (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The invention relates to the general field of head-mounted display systems for aircraft, comprising a head support, a display device, means for detecting the posture of the head support, means for detecting the current heading (C1) of an aircraft, and means for the graphical generation of said heading. The system of the invention comprises means for controlling, displaying and selecting headings, arranged such that: in response to a first command, said means display a second heading (C2), known as the heading set value and a third heading (C3), known as the support heading corresponding to the direction of the head support in a terrestrial reference frame, said direction given by information resulting from the detection of the posture of the head support and means for detecting the current heading; and, in response to a second command, said means replace the second heading with the third heading, said third heading thereby becoming the new heading set value.

Description

Système de visualisation de tête comportant des moyens de sélection de cap et procédé de sélection associé  Head display system having course selection means and method of selecting same
Le domaine de l'invention est celui des systèmes de visualisation montés sur la tête des membres d'équipage d'un aéronef. Plus précisément, l'invention concerne l'affichage et la sélection du cap par ce type de système de visualisation. The field of the invention is that of display systems mounted on the head of the crew members of an aircraft. More specifically, the invention relates to the display and heading selection by this type of display system.
Les systèmes de visualisation de casque ou de tête sont couramment utilisés pour des applications aéronautiques depuis plusieurs décennies. Un système de visualisation de tête comporte principalement deux sous-ensembles. Helmet or head visualization systems have been used extensively for aeronautical applications for several decades. A head display system mainly comprises two subsets.
Le premier sous-ensemble est un casque ou un serre-tête équipé d'un système de visualisation projetant vers l'œil ou les yeux de l'utilisateur une image collimatée en superposition sur l'extérieur. On entend par casque une structure de protection de la tête, la dite structure portant un certain nombre de dispositifs de phonie ou de visualisation ou de détection. L'équivalent anglais est « helmet ». On entend par serre-tête une structure portant un certain nombre de dispositifs de phonie ou de visualisation ou de détection et n'assurant pas nécessairement une fonction de protection de la tête. L'équivalent anglais est « headset ». Le système selon l'invention est indifféremment un casque ou un support de tête.  The first subset is a headset or a headband equipped with a viewing system projecting to the eye or the eyes of the user a collimated image superimposed on the outside. Headset means a head protection structure, said structure carrying a number of speech devices or visualization or detection. The English equivalent is "helmet". The term "headband" refers to a structure carrying a certain number of voice or visualization or detection devices and which does not necessarily provide a head protection function. The English equivalent is "headset". The system according to the invention is indifferently a helmet or a head support.
Le second sous-ensemble est un système de détection de posture de tête permettant de repérer dans l'espace, par rapport à un repère connu, généralement lié à un aéronef, la position et l'orientation du casque ou du serre-tête. La principale fonction du système de visualisation est de pouvoir présenter, en superposition sur le paysage extérieur, des informations dites « conformes », c'est-à-dire affichées virtuellement dans la direction exacte qu'elles occuperaient dans le paysage extérieur. Ainsi, si le système affiche une image vidéo issue d'un capteur et comportant un certain nombre d'objets, les objets représentés de cette image se superposent exactement aux objets présents sur le terrain. Il en va de même pour des représentations synthétiques d'objets tels des pistes, des cibles ou des indications de direction. Actuellement, lorsque l'équipage souhaite suivre un cap lié à un élément de la scène extérieure, il doit d'abord déterminer le cap associé à l'élément extérieur puis le saisir dans le système avionique, en général à l'aide d'un rotacteur monté sur un poste de commande. L'objet de l'invention est de simplifier cette opération en utilisant les ressources propres des systèmes de visualisation de casque ou de tête et en particulier à afficher des informations conformes. The second subassembly is a head posture detection system for locating in space, with respect to a known reference, generally related to an aircraft, the position and orientation of the helmet or the headband. The main function of the visualization system is to be able to present, superimposed on the external landscape, so-called "conformal" information, that is to say, displayed virtually in the exact direction that they would occupy in the external landscape. Thus, if the system displays a video image from a sensor and having a certain number of objects, the represented objects of this image are superimposed exactly on the objects present in the field. The same goes for synthetic representations of objects such as tracks, targets or directions. Currently, when the crew wishes to follow a heading related to an element of the outdoor scene, it must first determine the heading associated with the external element and then enter it in the avionics system, usually using a rotator mounted on a control station. The object of the invention is to simplify this operation by using the own resources of the helmet or head display systems and in particular to display compliant information.
Plus précisément, l'invention a pour objet un système de visualisation de tête pour aéronef comportant un support de tête, un dispositif de visualisation, une détection de posture dudit support de tête, des moyens de détection du cap courant d'un aéronef et des moyens de génération graphique dudit cap courant, caractérisé en ce le système comporte des moyens de commande, d'affichage et de sélection de caps, lesdits moyens agencés de façon :  More specifically, the subject of the invention is an aircraft head-display system comprising a head support, a display device, a posture detection of said head support, means for detecting the current heading of an aircraft and graphic generating means of said current heading, characterized in that the system comprises control means, display and caps selection, said means arranged so as:
- à afficher, dans le dispositif de visualisation, en réponse à une première commande, un second cap dit de consigne et un troisième cap dit « cap support » correspondant à la direction du support de tête dans un repère terrestre, ladite direction donnée par les informations issues de la détection de posture dudit support de tête et des moyens de détection du cap courant ;  to display, in the display device, in response to a first command, a second setpoint heading and a third heading called "support heading" corresponding to the direction of the head support in a terrestrial reference, said direction given by the information derived from the posture detection of said head support and the current heading detection means;
- à remplacer, en réponse à une seconde commande, ledit second cap par le dit troisième cap, ledit troisième cap devenant ainsi la nouvelle consigne de cap.  to replace, in response to a second command, said second heading by said third heading, said third heading thus becoming the new heading setpoint.
Avantageusement, lorsque les caps sont situés dans le champ de visualisation du dispositif de visualisation, l'affichage de la valeur du cap est réalisé en position conforme, c'est-à-dire dans la direction exacte qui correspond à la direction du cap.  Advantageously, when the caps are located in the viewing field of the display device, the display of the heading value is carried out in a conformal position, that is to say in the exact direction corresponding to the heading direction.
Avantageusement, lorsque les caps sont situés hors du champ de visualisation du dispositif de visualisation, l'affichage de la valeur du cap est réalisé en bord du champ du dispositif de visualisation avec une icône représentative de la direction dans laquelle se situe le cap.  Advantageously, when the caps are located outside the field of view of the display device, the display of the heading value is made at the edge of the field of the display device with an icon representative of the direction in which the heading is located.
Avantageusement, la direction exacte du cap est indiquée par une barre verticale, chaque cap comportant une barre d'un graphisme différent de celui des autres barres de cap. L'invention concerne également un procédé d'affichage, de gestion et de sélection du cap dans un système de visualisation de tête pour aéronef, ledit système de visualisation comportant un support de tête, un dispositif de visualisation, une détection de posture dudit support de tête, des moyens de détection du cap courant d'un aéronef et des moyens de génération graphique dudit cap courant, caractérisé en ce le procédé comporte au moins : Advantageously, the exact direction of the course is indicated by a vertical bar, each course having a bar of a different graphic design than the other course bars. The invention also relates to a method for displaying, managing and selecting the heading in an aircraft head-up display system, said display system comprising a head support, a display device, a posture detection of said head support. head, means for detecting the current heading of an aircraft and means for graphically generating said current heading, characterized in that the method comprises at least:
- une étape d'affichage, en réponse à une première commande, d'un second cap dit de consigne et un troisième cap dit « cap support » correspondant à la direction du support de tête dans un repère terrestre, ladite direction donnée par les informations issues de la détection de posture dudit support de tête et des moyens de détection du cap courant.  a step of displaying, in response to a first command, a second setpoint heading and a third heading called "support heading" corresponding to the direction of the head support in a terrestrial reference, said direction given by the information derived from the posture detection of said head support and the current heading detection means.
Avantageusement, le procédé comporte:  Advantageously, the method comprises:
- une étape de substitution, en réponse à une seconde commande, du second cap par le troisième cap, ledit troisième cap devenant ainsi la nouvelle consigne de cap.  a substitution step, in response to a second command, of the second heading by the third heading, said third heading thus becoming the new heading setpoint.
L'invention sera mieux comprise et d'autres avantages apparaîtront à la lecture de la description qui va suivre donnée à titre non limitatif et grâce aux figures annexées parmi lesquelles : The invention will be better understood and other advantages will become apparent on reading the description which follows given by way of non-limiting example and by virtue of the appended figures among which:
Les figures 1 à 4 représentent les différents affichages possibles du cap dans un système de visualisation de tête pour aéronef selon l'invention.  Figures 1 to 4 show the various possible displays of heading in an aircraft head display system according to the invention.
Le système de visualisation de tête selon l'invention comporte :The head display system according to the invention comprises:
- un support de tête ou un casque équipé comprenant un ensemble optoélectronique d'affichage. Cet ensemble de visualisation peut être monoculaire ou binoculaire. Lorsque le support de tête ou le casque est porté par un utilisateur, cet ensemble donne une image collimatée issue d'un afficheur superposée au paysage extérieur par un combineur ou mélangeur optique ; a head support or an equipped helmet comprising an optoelectronic display assembly. This display assembly can be monocular or binocular. When the head support or the helmet is worn by a user, this set gives a collimated image from a display superimposed on the outside landscape by a combiner or optical mixer;
- un système de détection de posture du support de tête ou du casque permettant de déterminer la position du support ou du casque dans le repère de l'aéronef. Il existe différents systèmes de détection qui sont bien connus de l'homme du métier. On citera les systèmes à détection magnétique dans lesquels un récepteur mesure les composantes d'un champ électromagnétique connu et les systèmes à détection optique comportant un émetteur et un récepteur apte à déterminer la position et l'orientation de cet émetteur par reconnaissance de forme. La position de l'aéronef dans un repère terrestre est elle-même connue au moyen de différents capteurs comme la centrale inertielle de l'aéronef ; a posture detection system of the head support or the helmet making it possible to determine the position of the support or the helmet in the reference mark of the aircraft. There are different detection systems that are well known to those skilled in the art. Magnetic detection systems in which a receiver measures the components of a known electromagnetic field and optical detection systems comprising a transmitter and a receiver capable of determining the position and the orientation of this transmitter by shape recognition. The position of the aircraft in a terrestrial reference is itself known by means of various sensors such as the aircraft's inertial unit;
- un ensemble ou un calculateur électronique assurant la génération d'une symbologie conforme superposée sur le paysage extérieur par l'ensemble optoélectronique d'affichage. Cette symbologie comporte généralement les informations de base nécessaires au pilotage (indications de la vitesse, de l'altitude, de l'assiette, de l'horizon,...). Pour assurer cette fonction, les différents capteurs de l'aéronef fournissent au calculateur les informations nécessaires. Le système de détection d'orientation du casque lui donne les informations de position et d'orientation permettant d'afficher la symbologie de façon conforme, c'est-à-dire dans un repère terrestre indépendant des mouvements de l'aéronef et des mouvements du casque ;  a set or an electronic calculator ensuring the generation of a conforming symbology superimposed on the outside landscape by the optoelectronic display assembly. This symbology generally includes the basic information necessary for piloting (indications of speed, altitude, attitude, horizon, etc.). To ensure this function, the various sensors of the aircraft provide the computer with the necessary information. The helmet orientation detection system gives it position and orientation information for displaying the symbology in a compliant manner, ie in a landmark independent of aircraft movements and movements. helmet;
- des moyens de commande, généralement un ou des postes de commande permettant de sélectionner, modifier ou valider les informations et les données affichées par le dispositif de visualisation. Ces moyens de commande peuvent également être disposés sur le manche de commande ou être activés par une commande vocale.  - Control means, generally one or more control stations for selecting, modifying or validating the information and data displayed by the display device. These control means may also be arranged on the control stick or be activated by a voice command.
Le calculateur assure également les fonctions spécifiques de l'invention liées à l'affichage du cap. A titre d'exemples non limitatifs, elles sont représentées sur les figures 1 à 4. Ces figures représentent de façon schématique l'affichage du cap dans un dispositif de visualisation de casque. Sur ces figures, le pourtour rectangulaire représente les limites du champ du dispositif de visualisation. Le paysage P est représenté symboliquement par des lignes de crête sur ces figures. Pour des raisons de clarté, toute la symbologie n'ayant pas de rapport avec l'affichage des caps a été supprimée des figures. The calculator also provides the specific functions of the invention related to the heading display. By way of nonlimiting examples, they are shown in FIGS. 1 to 4. These figures schematically represent the display of the heading in a helmet display device. In these figures, the rectangular periphery represents the limits of the field of the display device. The landscape P is represented symbolically by ridge lines in these figures. For the sake of clarity, all the symbology unrelated to the display of the caps has been removed from the figures.
Sur la figure 1 , le système affiche uniquement au centre et en haut du champ de visualisation le cap courant C1 , c'est-à-dire celui effectivement suivi par l'aéronef à un instant t. Sur cette figure 1 , la valeur affichée du cap C1 est de « 266 ». Toutes les valeurs affichées sont en degrés. In FIG. 1, the system only displays in the center and at the top of the field of view the current heading C1, that is to say the actual one followed by the aircraft at a time t. In this figure 1, the displayed value of the cap C1 is "266". All displayed values are in degrees.
Sur la figure 2, le pilote a validé la fonction d'affichage du cap selon l'invention. Le système affiche alors le cap de consigne C2. Sur cette figure 1 , la valeur affichée du cap C2 est de « 260 ». Il affiche également un troisième cap C3 dit « cap support » correspondant à la direction du support de tête dans un repère terrestre. La valeur du cap C3 est donnée par les informations issues de la détection de posture dudit support de tête et des moyens de détection du cap courant. La valeur affichée du cap C3 est de « 271 ». Le système affiche également une première barre verticale Ε½ dont le gisement coupe la direction exacte du cap de consigne C2 et une seconde barre verticale BC3 dont le gisement coupe la direction exacte du cap C3. Cette seconde barre est, par nature, disposée au centre du champ du dispositif de visualisation et reste fixe. Ces barres sont donc placées en position conforme. Elles ont des représentations graphiques différentes de façon à les différentier. Sur les figures, la première barre est représentée par un trait continu et la seconde barre par un trait en pointillés. Bien entendu, il est possible de jouer sur d'autres paramètres comme la longueur, l'épaisseur ou la couleur des barres. In FIG. 2, the pilot has validated the heading display function according to the invention. The system then displays the setpoint C2. In this FIG. 1, the displayed value of heading C2 is "260". It also displays a third cap C3 called "cap support" corresponding to the direction of the head support in a landmark. The value of heading C3 is given by the information derived from the posture detection of said head support and the current heading detection means. The displayed value of heading C3 is "271". The system also displays a first vertical bar Ε½ whose bearing intersects the exact direction of the setpoint heading C2 and a second vertical bar B C 3 whose bearing intersects the exact direction of the cap C3. This second bar is, by nature, disposed in the center of the field of the display device and remains fixed. These bars are placed in the correct position. They have different graphic representations in order to differentiate them. In the figures, the first bar is represented by a continuous line and the second bar by a dashed line. Of course, it is possible to play on other parameters like the length, the thickness or the color of the bars.
La figure 3 représente l'évolution de la symbologie des caps lorsque le pilote tourne la tête pour désigner une autre direction. La valeur du cap de consigne C2 ne change pas. Elle reste à la valeur de « 260 ». Par contre, si ce cap sort du champ visuel, sa valeur reste indiquée dans le champ du dispositif de visualisation, mais sa barre de représentation BC2 qui était en position conforme disparaît. Elle est remplacée par une icône qui indique que le cap de consigne est sorti du champ visuel. Sur la figure 3, à titre d'exemple, cette icône est un chevron dont la pointe est tournée vers la direction du cap de consigne. La valeur du cap C3 qui dépend de la posture du casque change. Elle passe à la valeur « 302 », le pilote ayant tourné la tête, dans cet exemple, de 31 degrés. Bien entendu, la seconde barre verticale BC3 reste fixe dans le repère du visuel de casque. Le pilote peut, à chaque instant, valider la direction du cap support qui devient alors le nouveau cap de consigne. Ainsi, sur la figure 4, le pilote a validé le cap support C3 de la figure 3 dont la valeur était de « 302 ». La nouvelle valeur de consigne C2 vaut donc maintenant « 302 ». Au moment de la validation, les deux barres verticales BC2 et BC3, indicatrices des caps C2 et C3 sont confondues comme on le voit sur la figure 4. Figure 3 shows the evolution of the symbology of the caps when the pilot turns his head to designate another direction. The value of C2 setpoint does not change. It remains at the value of "260". On the other hand, if this heading leaves the field of view, its value remains indicated in the field of the visualization device, but its representation bar B C 2 which was in conformal position disappears. It is replaced by an icon that indicates that the setpoint is out of the field of view. In Figure 3, for example, this icon is a chevron whose tip is turned towards the direction of the setpoint. The value of heading C3 that depends on the posture of the helmet changes. It goes to the value "302", the pilot having turned his head, in this example, by 31 degrees. Of course, the second vertical bar B C 3 remains fixed in the reference of the helmet visual. The pilot can, at any moment, validate the direction of the support heading which then becomes the new setpoint heading. Thus, in FIG. 4, the pilot validated the support heading C3 of FIG. 3, the value of which was "302". The new setpoint value C2 is now "302". At the time of validation, the two vertical bars B C 2 and B C 3, indicating caps C2 and C3 are combined as shown in FIG. 4.
Sur les différentes figures, la valeur du cap courant C1 est restée inchangée, indiquant que l'aéronef n'a pas changé de direction pendant que le pilote tournait la tête. Lorsque l'utilisateur valide le nouveau cap de consigne, le cap associé à la direction de la tête au moment de la validation est le nouveau cap pris en compte par le système de navigation de l'aéronef. Si le pilote automatique est enclenché, le nouveau cap est celui suivi par l'aéronef, si le pilotage automatique n'est pas enclenché, le pilote suit manuellement le nouveau cap indiqué dans le dispositif de visualisation.  In the various figures, the value of the current heading C1 remained unchanged, indicating that the aircraft did not change direction while the pilot turned his head. When the user validates the new setpoint, the heading associated with the direction of the head at the time of validation is the new course taken into account by the navigation system of the aircraft. If the autopilot is engaged, the new heading is the one followed by the aircraft, if the autopilot is not engaged, the pilot manually follows the new course indicated in the display device.

Claims

REVENDICATIONS
1. Système de visualisation de tête pour aéronef comportant un support de tête, un dispositif de visualisation, une détection de posture dudit support de tête, des moyens de détection du cap courant d'un aéronef et des moyens de génération graphique dudit cap courant (C1 ), caractérisé en ce le système comporte des moyens de commande, d'affichage et de sélection de caps, lesdits moyens agencés de façon : 1. Aircraft head display system comprising a head support, a display device, a posture detection of said head support, means for detecting the current heading of an aircraft and means for graphically generating said current heading ( C1), characterized in that the system comprises means for controlling, displaying and selecting caps, said means arranged so as:
- à afficher dans le dispositif de visualisation, en réponse à une première commande, un second cap (C2) dit de consigne et un troisième cap (C3) dit « cap support» correspondant à la direction du support de tête dans un repère terrestre, ladite direction donnée par les informations issues de la détection de posture dudit support de tête et des moyens de détection du cap courant ;  to display in the display device, in response to a first command, a second heading (C2) called setpoint and a third heading (C3) said "cap support" corresponding to the direction of the head support in a terrestrial reference, said direction given by the information from the posture detection of said head support and the current heading detection means;
- à remplacer, en réponse à une seconde commande, ledit second cap par le dit troisième cap, ledit troisième cap devenant ainsi la nouvelle consigne de cap.  to replace, in response to a second command, said second heading by said third heading, said third heading thus becoming the new heading setpoint.
2. Système de visualisation de casque selon la revendication 1 , caractérisé en ce que, lorsque les caps sont situés dans le champ de visualisation du dispositif de visualisation, l'affichage de la valeur du cap est réalisé en position conforme, c'est-à-dire dans la direction exacte qui correspond à la direction du cap. 2. Helmet display system according to claim 1, characterized in that, when the caps are located in the viewing field of the display device, the display of the heading value is made in a conforming position, that is, to say in the exact direction that corresponds to the heading direction.
3. Système de visualisation de casque selon la revendication 2, caractérisé en ce que, lorsque les caps sont situés hors du champ de visualisation du dispositif de visualisation, l'affichage de la valeur du cap est réalisé en bord du champ du dispositif de visualisation avec une icône représentative de la direction dans laquelle se situe le cap. 3. helmet display system according to claim 2, characterized in that, when the caps are located outside the viewing field of the display device, the display of the heading value is made on the edge of the field of the display device with an icon representative of the direction in which the course is.
4. Système de visualisation de casque selon l'une des revendications précédentes, caractérisé en ce que la direction exacte du cap est indiquée par une barre verticale, chaque cap comportant une barre d'un graphisme différent de celui des autres barres de cap. 4. helmet viewing system according to one of the preceding claims, characterized in that the exact direction of the course is indicated by a vertical bar, each course having a bar of a different graphics than the other course bars.
5. Procédé d'affichage, de gestion et de sélection du cap dans un système de visualisation de casque pour aéronef, ledit système de visualisation comportant un support de tête, un dispositif de visualisation, une détection de posture dudit support de tête, des moyens de détection du cap courant (C1 ) d'un aéronef et des moyens de génération graphique dudit cap courant, caractérisé en ce le procédé comporte au moins : 5. A method for displaying, managing and selecting the heading in an aircraft helmet display system, said display system comprising a head support, a display device, a posture detection of said head support, means of detecting the current heading (C1) of an aircraft and means for graphically generating said current heading, characterized in that the method comprises at least:
- une étape d'affichage, en réponse à une première commande, d'un second cap (C2) dit de consigne et un troisième cap (C3) dit « cap support » correspondant à la direction du support de tête dans un repère terrestre, ladite direction donnée par les informations issues de la détection de posture dudit support de tête et des moyens de détection du cap courant.  a step of displaying, in response to a first command, a second heading (C2) said setpoint and a third heading (C3) said "cap support" corresponding to the direction of the head support in a landmark, said direction given by the information from the posture detection of said head support and current heading detection means.
6. Procédé d'affichage, de gestion et de sélection du cap selon la revendication 5, caractérisé en ce que le procédé comporte: 6. Method for displaying, managing and selecting the heading according to claim 5, characterized in that the method comprises:
- une étape de substitution, en réponse à une seconde commande, du second cap par le troisième cap, ledit troisième cap devenant ainsi la nouvelle consigne de cap.  a substitution step, in response to a second command, of the second heading by the third heading, said third heading thus becoming the new heading setpoint.
EP15718233.8A 2014-04-30 2015-04-27 Head-mounted display system comprising heading selection means and associated selection method Withdrawn EP3137937A1 (en)

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FR1401005A FR3020688B1 (en) 2014-04-30 2014-04-30 HEAD VISUALIZATION SYSTEM COMPRISING CAP SELECTING MEANS AND ASSOCIATED SELECTION METHOD
PCT/EP2015/059005 WO2015165837A1 (en) 2014-04-30 2015-04-27 Head-mounted display system comprising heading selection means and associated selection method

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FR3020688A1 (en) 2015-11-06
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WO2015165837A1 (en) 2015-11-05
KR20160146769A (en) 2016-12-21

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