• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The general field of the invention is that of avionic systems intended to be used on aircraft in flight over a terrain. The avionics system includes a display system and a navigation system. The display system comprises a head support equipped with a display device capable of generating superimposed images on said ground, and a posture detection system of said headset. The display system according to the invention comprises means for displaying a marking symbol (M) in the display device, said symbol determining a given direction. The navigation system comprises means for geolocation of said aircraft, a map database representative of said terrain and calculation means for determining the location of the terrain area disposed at the intersection of said given direction with said terrain, and means for recording and processing said location in the navigation system.
    公开号:FR3020691A1
    申请号:FR1401006
    申请日:2014-04-30
    公开日:2015-11-06
    发明作者:Cecile Andre；Xavier Servantie；Laurent Laluque
    申请人:Thales SA；
    IPC主号:
    专利说明:

    [0001] The field of the invention is that of aircraft avionics systems comprising a display system mounted on the head of the user. More specifically, the aircraft concerned are helicopters.
    [0002] Currently, on aircraft, there are no simple means to designate and mark a point of interest located on land overflown. The only way for the pilot is to correlate his vision of the external landscape with cartographic information based on environmental indicators such as the presence of roads, rivers or structures. This point of interest can have multiple uses. It can serve as a rallying point for the aircraft, a point of passage in a flight plan, ... In military applications, it is possible to use laser pointers to mark a point of interest but these present eye safety risks and, moreover, are not georeferenced. Helmet or head visualization systems have been used extensively for aeronautical applications for several decades. A helmet visualization system mainly comprises two subsets. The first subset is a helmet equipped with a viewing system projecting to the eye or the eyes of the user a collimated image superimposed on the outside. A headset is understood to mean a head protection structure, the said structure carrying a certain number of voice or visualization or detection devices. 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.
    [0003] The second subassembly is a helmet 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. The main function of the helmet visualization system is to be able to present, in superposition 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 objects represented in this image are superimposed exactly on the objects present in the field. The on-board navigation systems include cartographic databases representative of the terrain overflown. These are coupled to geolocation systems so that the aircraft knows perfectly its position above the terrain overflown. The object of the invention is to couple a helmet or head display system with a navigation system so as to be able to designate and locate a point of interest in a simple and accurate manner. More specifically, the subject of the invention is an avionic system intended to be used on an aircraft in flight over a terrain, said avionic system comprising a display system and a navigation system, said viewing system comprising at least a head support equipped with a display device capable of generating superimposed images on said terrain, and a posture detection system of said support in said aircraft; said navigation system comprising at least means of geolocation of said aircraft, and a map database representative of said terrain; characterized in that: the display system comprises means for displaying a marking symbol in the display device, said symbol determining a given direction; the navigation system comprises calculating means making it possible to determine the location of the area of the terrain 35 disposed at the intersection of said given direction with said terrain, and means for recording and processing said location in the navigation system; navigation. Advantageously, the processing means determine the position, altitude and distance information to the aircraft of the localized field area, said information being displayed in the display device at the level of the marking symbol. Advantageously, the display system comprises means for validating the marking, the graphic representation of the marking symbol being modified after validation, said marking symbol being associated, after validation, with said localized field area. Advantageously, when the localized area area is validated, the navigation system inserts it into a flight plan. Advantageously, when the localized field area is enabled, the navigation system calculates a homing path to said localized terrain area. Advantageously, when the localized field area is validated, the navigation system displays it in at least one cartographic representation of the terrain overflown by a second visualization device of the display system. The invention will be better understood and other advantages will become apparent on reading the following description given by way of non-limiting example and with reference to the appended figures, in which: FIG. 1 represents the general operation of the system according to the invention; Fig. 2 shows a first representation of the marking symbol in a helmet display device; Fig. 3 shows a second representation of the marking symbol in a helmet display device. The avionics system according to the invention comprises at least one visualization system and a navigation system.
    [0004] The display system comprises a helmet or a head support equipped with a display device capable of generating images superimposed on said terrain, and a posture detection system of said helmet or said support in said aircraft.
    [0005] A head display system mainly comprises: - a headset or a head support equipped with an optoelectronic display assembly. This set can be monocular or binocular. When the helmet or the support is worn by a user, this set gives a collimated image from a display and superimposed on the outdoor landscape by a combiner or optical mixer that may or may not be integrated into a visor; a helmet or support posture detection system making it possible to determine the position and the orientation of 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 landmark is itself known by means of different sensors such as the aircraft's inertial unit. The navigation system comprises at least means of geolocation of said aircraft of the "GPS" type, an acronym for "Global Positioning System", a cartographic database representative of the terrain and an electronic calculator. This electronic calculator provides several functions detailed below. The first function of the electronic computer is to ensure the generation of a conforming symbology superimposed on the external landscape by the optoelectronic display assembly. This symbology generally includes the basic information necessary for the piloting such as the indications of speed, altitude or attitude. 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. The second function of the computer and which is more particularly dedicated to the implementation of the invention is a terrain marking function. It has several aspects. The first aspect of this function is to generate, on command of the user, in the helmet display device a marking symbol, said symbol determining a given direction. This symbol may have different representations. As non-limiting examples, it may have a simple geometrical shape such as a circle, a square, a rhombus or a cross or a more sophisticated form such as a target comprising several concentric circles centered on a cross. One can also represent the symbol in highlight.
    [0006] When the marking symbol is in the visual field of the user, it can then superimpose on a particular area or object of the terrain overflown by a simple movement of head. The navigation system comprises calculation means making it possible to determine the location of the area of the terrain disposed at the intersection of said given direction with said terrain. The principle of calculation is represented in FIG. 1. The terrain is referenced in a perfectly known terrestrial reference frame RT. The aircraft A is referenced in a moving reference system RA. The posture of the helmet C is referenced in a mobile reference frame Rc. The field V of the helmet visual is represented by a cone in FIG. 1. At any moment, it is possible to calculate the posture of the helmet in the reference mark of the aircraft RA by means of the posture detection system, and then by means of of the geolocation system of the device, the posture of the helmet in the terrestrial reference system RT. Therefore, the direction D indicated by the marking symbol is perfectly known in the terrestrial reference. It is then easy, knowing the position of the aircraft in relation to the terrain overflown, to calculate the intersection of this direction with the terrain using the map database and to determine the location of the "marked" terrain area. by the marking symbol. In FIG. 1, this zone is symbolized by a cylindrical tower Z.
    [0007] The processing means then determine the position, altitude and distance information to the aircraft of the localized terrain area. This information can be displayed in a cartridge in the vicinity of the marking symbol. By way of example, FIG. 2 shows the marking symbology in the previous configuration seen by the pilot in his helmet display device. The marking symbol M is a target in this figure 2. The cartridge CM has the three indications "580 feet", "1.2 Nm" and "264 °" respectively corresponding to the altitude in feet, to the distance in nautical miles and at 10 degrees in degrees from the selected area. The user can then validate the marking by means of an appropriate command. It is interesting then to change the graphic representation of the marking symbol to indicate its change of state. By way of example, FIG. 3 illustrates this change of state. Once validated, the marking symbol M is a vertical line surmounted by a white diamond. After validation, the marking symbol is associated with the localized field area. The computer comprises means for recording and processing said location in the navigation system. As a first example, the navigation system can insert it into a flight plan. As a second example, the navigation system calculates a homing path to said localized terrain area. Finally, the navigation system may display it in at least one cartographic representation of the terrain overflown by a second viewing system display device. This second device may be one of the display devices of the dashboard. All these electronic functions do not pose particular difficulties for the skilled person. 30
    权利要求:
    Claims (3)
    [0001]
    REVENDICATIONS1. Avionic system intended to be used on aircraft in flight over a terrain, said avionic system comprising a display system and a navigation system, said viewing system comprising at least one head support or a helmet equipped with a viewing device capable of generating images superimposed on said terrain, and a posture detection system of said helmet or said support in said aircraft; said navigation system comprising at least means of geolocation of said aircraft, and a map database representative of said terrain; characterized in that: the display system comprises means for displaying a marking symbol (M) in the display device, said symbol determining a given direction; the navigation system comprises calculation means making it possible to determine the location of the area of the terrain disposed at the intersection of said given direction with said terrain, and means for recording and processing said location in the navigation system .
    [0002]
    2. The avionics system according to claim 1, characterized in that the processing means determine the position, altitude and distance information to the aircraft of the localized terrain area, said information (CM) being displayed in the device. display at the marking symbol.
    [0003]
    3. avionics system according to claim 1, characterized in that the display system comprises marking validation means, the graphical representation of the marking symbol being modified after validation, said marking symbol being associated, after validation, to said zone; localized field .. Avionic system according to claim 3, characterized in that, when the localized terrain area is validated, the navigation system inserts it into a flight plan. 5. avionics system according to claim 3, characterized in that, when the localized field area is validated, the navigation system calculates a homing path to said localized terrain area. 6. The avionics system as claimed in claim 3, characterized in that, when the localized terrain zone is validated, the navigation system displays it in at least one cartographic representation of the terrain overflown by a second visualization device of the navigation system. 15 visualization.
    类似技术:
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    同族专利:
    公开号 | 公开日
    US20170053453A1|2017-02-23|
    FR3020691B1|2017-08-25|
    EP3137936A1|2017-03-08|
    WO2015165838A1|2015-11-05|
    CN106255865A|2016-12-21|
    引用文献:
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    FR3075987B1|2017-12-21|2019-12-13|Thales|METHOD AND SYSTEM FOR DUAL HARMONIZATION OF A HEAD-UP DISPLAY SYSTEM WITH AN INERTIAL ATTITUDE DEVICE REMOVABLE IN THE COCKPIT|
    FR3075985B1|2017-12-21|2019-11-15|Thales|METHOD AND SYSTEM FOR DUAL HARMONIZATION OF A HIGH-DOOR HEAD DISPLAY SYSTEM TO REALIZE AIRCRAFT DRIVING INFORMATION DISPLAY WITH THE REAL WORLD OUTSIDE|
    FR3098900A1|2019-07-15|2021-01-22|Airbus Helicopters|Method and system for assisting the piloting of an aircraft by adaptive display on a screen|
    法律状态:
    2015-04-08| PLFP| Fee payment|Year of fee payment: 2 |
    2015-11-06| PLSC| Publication of the preliminary search report|Effective date: 20151106 |
    2016-03-23| PLFP| Fee payment|Year of fee payment: 3 |
    2017-03-27| PLFP| Fee payment|Year of fee payment: 4 |
    2018-03-27| PLFP| Fee payment|Year of fee payment: 5 |
    2020-03-26| PLFP| Fee payment|Year of fee payment: 7 |
    2021-03-25| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1401006A|FR3020691B1|2014-04-30|2014-04-30|AVIONIC SYSTEM COMPRISING MEANS OF DESIGNATION AND MARKING OF THE FIELD|FR1401006A| FR3020691B1|2014-04-30|2014-04-30|AVIONIC SYSTEM COMPRISING MEANS OF DESIGNATION AND MARKING OF THE FIELD|
    PCT/EP2015/059006| WO2015165838A1|2014-04-30|2015-04-27|Avionic system comprising means for designating and marking land|
    CN201580023699.6A| CN106255865A|2014-04-30|2015-04-27|Including the avionics system for specifying the device with labelling ground|
    EP15717514.2A| EP3137936A1|2014-04-30|2015-04-27|Avionic system comprising means for designating and marking land|
    US15/307,804| US20170053453A1|2014-04-30|2015-04-27|Avionic system comprising means for designating and marking land|
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