WO2001094882A2 - Mapping method - Google Patents

Mapping method Download PDF

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Publication number
WO2001094882A2
WO2001094882A2 PCT/FR2001/001697 FR0101697W WO0194882A2 WO 2001094882 A2 WO2001094882 A2 WO 2001094882A2 FR 0101697 W FR0101697 W FR 0101697W WO 0194882 A2 WO0194882 A2 WO 0194882A2
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WO
WIPO (PCT)
Prior art keywords
procedure
mobile transmitter
coordinates
transmitter
geographic
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Application number
PCT/FR2001/001697
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French (fr)
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WO2001094882A3 (en
WO2001094882B1 (en
Inventor
Wilhelm Lopau
Original Assignee
Wilhelm Lopau
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 Wilhelm Lopau filed Critical Wilhelm Lopau
Priority to AU74174/01A priority Critical patent/AU7417401A/en
Publication of WO2001094882A2 publication Critical patent/WO2001094882A2/en
Publication of WO2001094882A3 publication Critical patent/WO2001094882A3/en
Publication of WO2001094882B1 publication Critical patent/WO2001094882B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/20—Instruments for performing navigational calculations
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
    • G09B29/10—Map spot or coordinate position indicators; Map reading aids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S2205/001—Transmission of position information to remote stations
    • G01S2205/008—Transmission of position information to remote stations using a mobile telephone network

Definitions

  • the present invention relates to a cartographic process, of the type of those which resort to a remote location of a navigating mobile.
  • the invention relates to a cartographic method comprising at least: a call procedure, consisting at least of transmitting, from a mobile transmitter equipped with a graphic screen and belonging to a communications network, a request for 'navigation aid for computer equipment connected ' to this communications network; a location procedure, consisting at least of determining estimated geographic coordinates, at least linked to the actual geographic coordinates in which the mobile transmitter is located during the call procedure; a search procedure, triggered by the appeal procedure and consisting at least of searching, in a memory of the computer equipment, a geographical map; a response procedure, consisting at least of transmitting, via the communications network, the geographic map to the mobile transmitter; and a procedure for the display 1, consisting at least to display the map on mobile transmitter graphic display.
  • the method of the invention is essentially characterized in that the displayed geographic map covers, without any specific request sent by the mobile transmitter, an area including a point identified by the estimated geographic coordinates.
  • geographic map is meant here a conventional geometric representation, generally planar, in relative positions, of concrete or abstract phenomena, localizable in space, but also a document carrying this representation or part of this representation in the form of a handwritten figure , printed or produced by any other means.
  • the method comprises a relaying procedure consisting at least of relaying, by means of at least one first fixed transmitter of the communications network, the request for aid to navigation sent by the mobile transmitter intended for computer equipment.
  • the location procedure may include an estimation procedure consisting at least of developing the geographic coordinates estimated as a function of at least the coordinates of the first fixed transmitter.
  • the relaying procedure can consist of at least relaying the navigation aid request by means of at least first, second and third fixed transmitters of the communications network.
  • the estimation procedure consists at least, for example, in developing the geographic coordinates estimated as a function of at least the geographic coordinates of the first, second, and third fixed transmitters of the network and according to reception parameters of the navigation aid request by these first, second, and third fixed transmitters.
  • the response procedure can advantageously include a tracking procedure, consisting at least of transmitting the estimated geographic coordinates to the mobile transmitter.
  • the display procedure may in turn include a focusing operation consisting of displaying on the screen of the mobile transmitter, in a differentiated manner, the point on the geographical map which is identified by the estimated coordinates, as well as, possibly, a adjustment operation consisting in modifying the scale of the displayed geographic map in response to a request for change of scale made from the mobile transmitter.
  • a focusing operation consisting of displaying on the screen of the mobile transmitter, in a differentiated manner, the point on the geographical map which is identified by the estimated coordinates, as well as, possibly, a adjustment operation consisting in modifying the scale of the displayed geographic map in response to a request for change of scale made from the mobile transmitter.
  • the cartographic method can also include an orientation procedure, consisting at least of determining, with respect to a fixed direction, the orientation of the mobile transmitter at least during the display procedure.
  • the display procedure includes a follow-up operation consisting in modifying the orientation of the card displayed in response to a change in orientation of the mobile transmitter.
  • the invention relates to a cartographic process, but more precisely to a process making it possible to navigate, that is to say to move on sea or on land while locating, by means a mobile transmitter 1 equipped with a graphic screen 10 and belonging to a communications network.
  • the method of the invention essentially comprises a call procedure, a location procedure, a search procedure, a response procedure, and a display procedure.
  • the appeal procedure notably consists in transmitting, from the mobile transmitter 1, a navigation aid request intended for computer equipment 2 which is connected to this communications network.
  • the mobile transmitter 1 is a mobile telephone using the international communication protocol "WAP" (thus named from the English expression “Wireless Application Protocol”, that is to say “Application protocol for communication without wire "), this calling procedure is for example implemented by connecting this transmitter to the global communications network Internet.
  • WAP the international communication protocol
  • the localization procedure consists at least of determining estimated geographic coordinates X0 and Y0 which approximate, at best to the technology used, the actual geographic coordinates XI and Yl, at which the mobile transmitter 1 is located during the call procedure.
  • the search procedure which is triggered by the call procedure, consists at least of searching, in the memory of the computer equipment 2 to which the transmitter 1 has connected directly or indirectly, a geographical map K chosen to cover a land and / or sea area which includes point P materializing the estimated geographic coordinates X0 and Y0.
  • the response procedure consists in transmitting, through the communications network, the geographic map K to the mobile transmitter 1, the display procedure essentially consisting in displaying the map K on the graphic screen 10 of the mobile transmitter 1.
  • the cartographic method also comprises a relaying procedure, which notably consists in relaying, by means of one or more fixed transmitters of the communications network, for example by means of transmitters 11, 12, and 13, the request for navigation aid issued by the mobile transmitter 1 intended for the computer equipment 2,
  • a relaying procedure which notably consists in relaying, by means of one or more fixed transmitters of the communications network, for example by means of transmitters 11, 12, and 13, the request for navigation aid issued by the mobile transmitter 1 intended for the computer equipment 2,
  • the location procedure advantageously comprises an estimation procedure which notably consists in developing the estimated geographic coordinates X0 and Y0 of the mobile 1 as a function of the geographic coordinates of one or more fixed transmitters, for example as a function of the coordinates X11 and Y11 of the transmitter 11, and / or as a function of the coordinates X12 and Y12 of the transmitter 12, and / or as a function of the coordinates X13 and Y13 of the transmitter 13.
  • the estimation procedure can consist in developing the estimated geographic coordinates X0 and Y0 of the mobile not only as a function of the geographic coordinates, such as Xll and Yll, X12 and Y12, X13 and Y13 of the fixed transmitters 11, 12 and 13 of the network, but also according to parameters reception, noted Qll, Q12 and Q13, which characterize for example the power, the quality, the phase or the instant of reception, by the respective fixed transmitters 11, 12, and 13, of the request for assistance with the navigation from the mobile transmitter 1.
  • the response procedure may include a procedure for locating the mobile by itself, and notably consisting in transmitting to the mobile transmitter 1 the estimated geographical coordinates X0 and Y0.
  • the display procedure can include a focusing operation, which consists of displaying on the screen 10 of the mobile transmitter 1, in a differentiated manner, the point P of the geographic map K which is identified by the estimated coordinates X0 and Y0, the point P can for example be displayed with a color contrasting with the surrounding points, or with a blinking.
  • a focusing operation which consists of displaying on the screen 10 of the mobile transmitter 1, in a differentiated manner, the point P of the geographic map K which is identified by the estimated coordinates X0 and Y0, the point P can for example be displayed with a color contrasting with the surrounding points, or with a blinking.
  • the display procedure can also include an adjustment operation, which consists in modifying the scale of the displayed geographic map K, in response to a request for change of scale formulated from the mobile transmitter 1.
  • the cartographic method of the invention can also include an orientation procedure which notably consists in determining, with respect to a fixed direction D, for example magnetic north, the orientation of the mobile transmitter 1 during the display procedure, this mobile transmitter 1 being for example equipped with an integrated compass.
  • an orientation procedure which notably consists in determining, with respect to a fixed direction D, for example magnetic north, the orientation of the mobile transmitter 1 during the display procedure, this mobile transmitter 1 being for example equipped with an integrated compass.
  • the display procedure can include a tracking operation which consists in modifying the orientation of the displayed card K as a function of any possible change of orientation of the mobile transmitter 1 .

Abstract

The invention concerns a mapping method, of the type using remote locating of a navigating moving object (1). Said method, wherein said navigating mobile object is a mobile transmitter (1) equipped with a graphic display screen (10), essentially comprises steps which consists in: transmitting, from the mobile transmitter (1), a request for navigation aid addressed to a computer equipment (2); locating the mobile transmitter (1); searching in the storage unit of the computer equipment (2), for a geographical map (K) covering the zone wherein is located the mobile transmitter (1); transmitting the map (K) to the mobile transmitter; and displaying said map (K) on the graphic display screen (10) of said mobile transmitter (1).

Description

PROCEDE CARTOGRAPHIQUE La présente invention concerne un procédé cartographique, du type de ceux qui ont recours à une localisation à distance d'un mobile navigant. The present invention relates to a cartographic process, of the type of those which resort to a remote location of a navigating mobile.
Plus précisément, l'invention concerne un procédé cartographique comprenant au moins : une procédure d'appel, consistant au moins à émettre, à partir d'un transmetteur mobile équipé d'un écran graphique et appartenant à un réseau de communications, une requête d'aide à la navigation à destination d'un équipement informatique relié' à ce réseau de communications; une procédure de localisation, consistant au moins à déterminer des coordonnées géographiques estimées , au moins liées aux coordonnées géographiques réelles auxquelles se situe le transmetteur mobile pendant la procédure d'appel; une procédure de recherche, déclenchée par la procédure d'appel et consistant au moins à rechercher, dans une mémoire de l'équipement informatique , une carte géographique ; une procédure de réponse, consistant au moins à transmettre, à travers le réseau de communications, la carte géographique au transmetteur mobile ; et une procédure d1 affichage, consistant au moins à afficher la carte géographique sur l'écran graphique du transmetteur mobile .More specifically, the invention relates to a cartographic method comprising at least: a call procedure, consisting at least of transmitting, from a mobile transmitter equipped with a graphic screen and belonging to a communications network, a request for 'navigation aid for computer equipment connected ' to this communications network; a location procedure, consisting at least of determining estimated geographic coordinates, at least linked to the actual geographic coordinates in which the mobile transmitter is located during the call procedure; a search procedure, triggered by the appeal procedure and consisting at least of searching, in a memory of the computer equipment, a geographical map; a response procedure, consisting at least of transmitting, via the communications network, the geographic map to the mobile transmitter; and a procedure for the display 1, consisting at least to display the map on mobile transmitter graphic display.
Un tel procédé est décrit dans le brevet EP 0995973.Such a process is described in patent EP 0995973.
Ce procédé permet à une personne itinérante désirant se rendre en un point cible d'obtenir sur un écran une carte géographique couvrant ce point cible. Un tel procédé n'est donc applicable que sous réserve d'identification d'un point cible déterminé. Un procédé voisin, mais plus succinct encore, est décrit dans le brevet US 5722083. Ces procédés connus, s'ils permettent le guidage, ne permettent pas en revanche un repérage . Dans ce contexte, l'invention a pour but, de proposer un procédé, permettant de répondre à ce besoin.This process allows an itinerant person wishing to go to a target point to obtain on a screen a geographic map covering this target point. Such a method is therefore only applicable subject to the identification of a determined target point. A similar process, but even more succinct, is described in US Pat. No. 5,720,2083. These known processes, while allowing guidance, do not, however, allow identification. In this context, the object of the invention is to propose a method making it possible to meet this need.
A cette fin, le procédé de l'invention, par ailleurs conforme à la définition générique qu'en donne le préambule ci-dessous, est essentiellement caractérisé en ce que la carte géographique affichée couvre, sans aucune requête spécifique émise par le transmetteur mobile, une zone incluant un point repéré par les coordonnées géographiques estimées.To this end, the method of the invention, moreover in accordance with the generic definition given in the preamble below, is essentially characterized in that the displayed geographic map covers, without any specific request sent by the mobile transmitter, an area including a point identified by the estimated geographic coordinates.
Par carte géographique on entend ici une représentation géométrique conventionnelle, généralement plane, en positions relatives , de phénomènes concrets ou abstraits, localisables dans l'espace, mais aussi un document portant cette représentation ou une partie de cette représentation sous forme d'une figure manuscrite, imprimée ou réalisée par tout autre moyen.By geographic map is meant here a conventional geometric representation, generally planar, in relative positions, of concrete or abstract phenomena, localizable in space, but also a document carrying this representation or part of this representation in the form of a handwritten figure , printed or produced by any other means.
Selon un mode de réalisation préféré de l'invention, le procédé comprend une procédure de relayage consistant au moins à relayer, au moyen d'au moins un premier transmetteur fixe du réseau de communications, la requête d'aide à la navigation émise par le transmetteur mobile à destination de l'équipement informatique .According to a preferred embodiment of the invention, the method comprises a relaying procedure consisting at least of relaying, by means of at least one first fixed transmitter of the communications network, the request for aid to navigation sent by the mobile transmitter intended for computer equipment.
Dans ce cas, la procédure de localisation peut comprendre une procédure d'estimation consistant au moins à élaborer les coordonnées géographiques estimées en fonction au moins des coordonnées du premier transmetteur fixe.In this case, the location procedure may include an estimation procedure consisting at least of developing the geographic coordinates estimated as a function of at least the coordinates of the first fixed transmitter.
Dans un mode de réalisation plus élaboré, la procédure de relayage peut consister au moins à relayer la requête d'aide à la navigation au moyen au moins de premier, second et troisième transmetteurs fixes du réseau de communications. Dans ce dernier cas, la procédure d'estimation consiste au moins, par exemple, à élaborer les coordonnées géographiques estimées en fonction au moins des coordonnées géographiques des premier, second, et troisième transmetteurs fixes du réseau et en fonction de paramètres de réception de la requête d'aide à la navigation par ces premier, second, et troisième transmetteurs fixes.In a more elaborate embodiment, the relaying procedure can consist of at least relaying the navigation aid request by means of at least first, second and third fixed transmitters of the communications network. In the latter case, the estimation procedure consists at least, for example, in developing the geographic coordinates estimated as a function of at least the geographic coordinates of the first, second, and third fixed transmitters of the network and according to reception parameters of the navigation aid request by these first, second, and third fixed transmitters.
Quel que soit le mode de réalisation choisi, la procédure de réponse peut avantageusement inclure une procédure de repérage, consistant au moins à transmettre au transmetteur mobile les coordonnées géographiques estimées.Whatever the embodiment chosen, the response procedure can advantageously include a tracking procedure, consisting at least of transmitting the estimated geographic coordinates to the mobile transmitter.
La procédure d'affichage peut quant à elle inclure une opération de focalisation consistant à afficher sur l'écran du transmetteur mobile, de façon différenciée, le point de la carte géographique qui est repéré par les coordonnées estimées, ainsi, éventuellement, qu'une opération d'ajustement consistant à modifier l'échelle de la carte géographique affichée en réponse à une demande de changement d'échelle formulée à partir du transmetteur mobile.The display procedure may in turn include a focusing operation consisting of displaying on the screen of the mobile transmitter, in a differentiated manner, the point on the geographical map which is identified by the estimated coordinates, as well as, possibly, a adjustment operation consisting in modifying the scale of the displayed geographic map in response to a request for change of scale made from the mobile transmitter.
Le procédé cartographique peut aussi comprendre une procédure d'orientation, consistant au moins à déterminer, par rapport à une direction fixe, l'orientation du transmetteur mobile au moins pendant la procédure d'affichage.The cartographic method can also include an orientation procedure, consisting at least of determining, with respect to a fixed direction, the orientation of the mobile transmitter at least during the display procedure.
Dans ce dernier cas, il peut être opportun de prévoir que la procédure d'affichage inclue une opération de suivi consistant à modifier l'orientation de la carte affichée en réponse à un changement d'orientation du transmetteur mobile.In the latter case, it may be appropriate to provide that the display procedure includes a follow-up operation consisting in modifying the orientation of the card displayed in response to a change in orientation of the mobile transmitter.
D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci- après, à titre indicatif et nullement limitatif, en référence au dessin annexé, dont l'unique figure représente sché atiquement les éléments mis en oeuvre dans une forme d'exécution élaborée du procédé de l'invention.Other characteristics and advantages of the invention will emerge clearly from the description given therein. after, by way of indication and in no way limitative, with reference to the appended drawing, the single figure of which represents the elements used in an elaborate embodiment of the method of the invention.
Comme l'indique déjà le préambule ci-dessus, l'invention concerne un procédé cartographique, mais plus précisément un procédé permettant de naviguer, c'est-à-dire de se déplacer sur mer ou sur terre tout en se repérant, au moyen d'un transmetteur mobile 1 équipé d'un écran graphique 10 et appartenant à un réseau de communications.As already indicated in the preamble above, the invention relates to a cartographic process, but more precisely to a process making it possible to navigate, that is to say to move on sea or on land while locating, by means a mobile transmitter 1 equipped with a graphic screen 10 and belonging to a communications network.
Le procédé de l'invention comprend essentiellement une procédure d'appel, une procédure de localisation, une procédure de recherche, une procédure de réponse, et une procédure d'affichage.The method of the invention essentially comprises a call procedure, a location procedure, a search procedure, a response procedure, and a display procedure.
La procédure d'appel consiste notamment à émettre, à partir du transmetteur mobile 1, une requête d'aide à la navigation à destination d'un équipement informatique 2 qui est relié à ce réseau de communications.The appeal procedure notably consists in transmitting, from the mobile transmitter 1, a navigation aid request intended for computer equipment 2 which is connected to this communications network.
Si le transmetteur mobile 1 est un téléphone mobile utilisant le protocole international de communication "WAP" (ainsi nommé de l'expression anglo-saxonne "Wireless Application Protocole", c'est-à-dire "Protocole d'application à la communication sans fil"), cette procédure d'appel est par exemple mise en oeuvre par connexion de ce transmetteur au réseau de communications mondial Internet.If the mobile transmitter 1 is a mobile telephone using the international communication protocol "WAP" (thus named from the English expression "Wireless Application Protocol", that is to say "Application protocol for communication without wire "), this calling procedure is for example implemented by connecting this transmitter to the global communications network Internet.
La procédure de localisation consiste au moins à déterminer des coordonnées géographiques estimées X0 et Y0 se rapprochant, au mieux de la technologie utilisée, des coordonnées géographiques réelles XI et Yl, auxquelles se situe le transmetteur mobile 1 pendant la procédure d'appel.The localization procedure consists at least of determining estimated geographic coordinates X0 and Y0 which approximate, at best to the technology used, the actual geographic coordinates XI and Yl, at which the mobile transmitter 1 is located during the call procedure.
La procédure de recherche, qui est déclenchée par la procédure d'appel, consiste au moins à rechercher, dans la mémoire de l'équipement informatique 2 auquel le transmetteur 1 s'est connecté directement ou indirectement, une carte géographique K choisie pour couvrir une zone terrestre et / ou maritime qui inclue le point P matérialisant les coordonnées géographiques estimées X0 et Y0.The search procedure, which is triggered by the call procedure, consists at least of searching, in the memory of the computer equipment 2 to which the transmitter 1 has connected directly or indirectly, a geographical map K chosen to cover a land and / or sea area which includes point P materializing the estimated geographic coordinates X0 and Y0.
La procédure de réponse consiste à transmettre, à travers le réseau de communications, la carte géographique K au transmetteur mobile 1, la procédure d'affichage consistant essentiellement, quant à elle, à afficher la carte K sur l'écran graphique 10 du transmetteur mobile 1.The response procedure consists in transmitting, through the communications network, the geographic map K to the mobile transmitter 1, the display procedure essentially consisting in displaying the map K on the graphic screen 10 of the mobile transmitter 1.
De préférence, le procédé cartographique comprend aussi une procédure de relayage, qui consiste notamment à relayer, au moyen d'un ou plusieurs transmetteurs fixes du réseau de communications, par exemple au moyen des transmetteurs 11, 12, et 13, la requête d'aide à la navigation émise par le transmetteur mobile 1 à destination de l'équipement informatique 2,Preferably, the cartographic method also comprises a relaying procedure, which notably consists in relaying, by means of one or more fixed transmitters of the communications network, for example by means of transmitters 11, 12, and 13, the request for navigation aid issued by the mobile transmitter 1 intended for the computer equipment 2,
Dans ce cas, la procédure de localisation comprend avantageusement une procédure d'estimation qui consiste notamment à élaborer les coordonnées géographiques estimées X0 et Y0 du mobile 1 en fonction des coordonnées géographiques d'un ou plusieurs transmetteurs fixes, par exemple en fonction des coordonnées Xll et Yll du transmetteur 11, et / ou en fonction des coordonnées X12 et Y12 du transmetteur 12, et / ou en fonction des coordonnées X13 et Y13 du transmetteur 13. Pour affiner la localisation, c'est-à-dire élaborer les coordonnées géographiques estimées X0 et Y0 du mobile 1 d'une telle qualité qu'elles se superposent pratiquement aux coordonnées réelles XI et Yl de ce mobile, la procédure d'estimation peut consister à élaborer les coordonnées géographiques estimées X0 et Y0 du mobile non seulement en fonction des coordonnées géographiques, telles que Xll et Yll, X12 et Y12, X13 et Y13 des transmetteurs fixes 11, 12 et 13 du réseau, mais également en fonction de paramètres de réception, notés Qll, Q12 et Q13, qui caractérisent par exemple la puissance, la qualité, la phase ou l'instant de la réception, par les transmetteurs fixes respectifs 11, 12, et 13, de la requête d'aide à la navigation émise par le transmetteur mobile 1.In this case, the location procedure advantageously comprises an estimation procedure which notably consists in developing the estimated geographic coordinates X0 and Y0 of the mobile 1 as a function of the geographic coordinates of one or more fixed transmitters, for example as a function of the coordinates X11 and Y11 of the transmitter 11, and / or as a function of the coordinates X12 and Y12 of the transmitter 12, and / or as a function of the coordinates X13 and Y13 of the transmitter 13. To refine the location, that is to say to develop the estimated geographic coordinates X0 and Y0 of the mobile 1 of such quality that they practically overlap the real coordinates XI and Yl of this mobile, the estimation procedure can consist in developing the estimated geographic coordinates X0 and Y0 of the mobile not only as a function of the geographic coordinates, such as Xll and Yll, X12 and Y12, X13 and Y13 of the fixed transmitters 11, 12 and 13 of the network, but also according to parameters reception, noted Qll, Q12 and Q13, which characterize for example the power, the quality, the phase or the instant of reception, by the respective fixed transmitters 11, 12, and 13, of the request for assistance with the navigation from the mobile transmitter 1.
Dès lors que la position du transmetteur mobile 1 a pu être déterminée, la procédure de réponse peut inclure une procédure de repérage du mobile par lui-même, et consistant notamment à transmettre au transmetteur mobile 1 les coordonnées géographiques estimées X0 et Y0.Once the position of the mobile transmitter 1 has been determined, the response procedure may include a procedure for locating the mobile by itself, and notably consisting in transmitting to the mobile transmitter 1 the estimated geographical coordinates X0 and Y0.
Pour augmenter encore le confort de la navigation à partir du transmetteur mobile 1, la procédure d'affichage peut inclure une opération' de focalisation, qui consiste à afficher sur l'écran 10 du transmetteur mobile 1, de façon différenciée, le point P de la carte géographique K qui est repéré par les coordonnées estimées X0 et Y0, le point P pouvant par exemple être affiché avec une couleur contrastant avec les points environnants, ou avec un clignotement.To further increase the comfort of navigation from the mobile transmitter 1, the display procedure can include a focusing operation, which consists of displaying on the screen 10 of the mobile transmitter 1, in a differentiated manner, the point P of the geographic map K which is identified by the estimated coordinates X0 and Y0, the point P can for example be displayed with a color contrasting with the surrounding points, or with a blinking.
La procédure d'affichage peut en outre inclure une opération d'ajustement, qui consiste à modifier l'échelle de la carte géographique K affichée, en réponse à une demande de changement d'échelle formulée à partir du transmetteur mobile 1.The display procedure can also include an adjustment operation, which consists in modifying the scale of the displayed geographic map K, in response to a request for change of scale formulated from the mobile transmitter 1.
Pour ce faire, il est possible soit de prévoir, sur le transmetteur mobile 1 lui-même, des moyens permettant d'effectuer un zoom avant ou un zoom arrière sur la carte géographique K reçue de l'équipement informatique 2, soit d'adresser, à partir du transmetteur mobile 1 et à travers le réseau de communications, une requête de changement d'échelle à laquelle l'équipement informatique 2 répond par l'émission, à destination du transmetteur mobile 1, une nouvelle carte géographique K', semblable à la carte K mais d'échelle différente .To do this, it is possible either to provide, on the mobile transmitter 1 itself, means making it possible to zoom in or zoom out on the geographic map K received from the computer equipment 2, or to address , from the mobile transmitter 1 and through the communications network, a request for a change of scale to which the computer equipment 2 responds by sending, to the mobile transmitter 1, a new geographic map K ', similar à la carte K but of a different scale.
Le procédé cartographique de l'invention peut encore comprendre une procédure d'orientation qui consiste notamment à déterminer, par rapport à une direction fixe D, par exemple le nord magnétique, l'orientation du transmetteur mobile 1 pendant la procédure d'affichage, ce transmetteur mobile 1 étant par exemple équipé d'une boussole intégrée.The cartographic method of the invention can also include an orientation procedure which notably consists in determining, with respect to a fixed direction D, for example magnetic north, the orientation of the mobile transmitter 1 during the display procedure, this mobile transmitter 1 being for example equipped with an integrated compass.
Enfin, pour parfaire le confort d'utilisation du transmetteur mobile 1, la procédure d'affichage peut inclure une opération de suivi qui consiste à modifier l'orientation de la carte affichée K en fonction de tout éventuel changement d'orientation du transmetteur mobile 1. Finally, to improve the comfort of use of the mobile transmitter 1, the display procedure can include a tracking operation which consists in modifying the orientation of the displayed card K as a function of any possible change of orientation of the mobile transmitter 1 .

Claims

REVENDICATIONS. Procédé cartographique comprenant au moins : une procédure d'appel, consistant au moins à émettre, à partir d'un transmetteur mobile (1) équipé d'un écran graphique (10) et appartenant à un réseau de communications, une requête d'aide 5" à la navigation à destination d'un équipement informatique (2) relié à ce réseau de communications; une procédure de localisation, consistant au moins à déterminer des coordonnées géographiques estimées (X0, Y0), au moins liées aux coordonnées géographiques réelles (XI, Yl) auxquelles se ήθ situe le transmetteur mobile (1) pendant la procédure d'appel; une procédure de recherche, déclenchée par la procédure d'appel et consistant au moins à rechercher, dans une mémoire de l'équipement informatique (2), une carte géographique (K) ; 5 une procédure de réponse, consistant au moins à transmettre, à travers le réseau de communications, la carte géographique (K) au transmetteur mobile (1); et une procédure d'affichage, consistant au moins à afficher la carte géographique (K) sur l'écran graphique (10) du transmetteur mobile (1), 0 caractérisé en ce que la carte géographique (K) couvre une zone incluant un point (P) repéré par les coordonnées géographiques estimées (X0, Y0) .CLAIMS. Cartographic method comprising at least: a call procedure, consisting at least of transmitting, from a mobile transmitter (1) equipped with a graphic screen (10) and belonging to a communications network, a request for help 5 " to navigation intended for computer equipment (2) connected to this communications network; a localization procedure, consisting at least of determining estimated geographical coordinates (X0, Y0), at least linked to actual geographical coordinates ( XI, Yl) which the mobile transmitter (1) is located during the call procedure; a search procedure, triggered by the call procedure and consisting at least of searching, in a memory of the computer equipment (2 ), a geographic map (K); 5 a response procedure, consisting at least of transmitting, through the communications network, the geographic map (K) to the mobile transmitter (1); and a procedure for affi chage, consisting at least of displaying the geographic map (K) on the graphic screen (10) of the mobile transmitter (1), 0 characterized in that the geographic map (K) covers an area including a point (P) identified by the estimated geographic coordinates (X0, Y0).
2. Procédé cartographique suivant la revendication 1, 5 caractérisé en ce qu'il comprend une procédure de relayage consistant au moins à relayer, au moyen d'au moins un premier transmetteur fixe (11) du réseau de communications, la requête d'aide à la navigation émise par le transmetteur mobile (1) à destination de l'équipement informatique (2). 02. Cartographic method according to claim 1, 5 characterized in that it comprises a relaying procedure consisting at least of relaying, by means of at least one first fixed transmitter (11) of the communications network, the request for assistance navigation issued by the mobile transmitter (1) to the computer equipment (2). 0
3. Procédé cartographique suivant la revendication 2, caractérisé en ce que la procédure de localisation comprend une procédure d'estimation consistant au moins à élaborer les coordonnées géographiques estimées (X0, Y0) en fonction au moins des coordonnées (Xll, Yll) du premier transmetteur fixe (11) •3. Cartographic method according to claim 2, characterized in that the localization procedure comprises an estimation procedure consisting at least of developing the estimated geographic coordinates (X0, Y0) as a function at least of the coordinates (Xll, Yll) of the first fixed transmitter (11) •
4. Procédé cartographique suivant la revendication 2 ou 3, caractérisé en ce que la procédure de relayage consiste au moins à relayer la requête d'aide à la navigation au moyen au moins de premier, second et troisième transmetteurs fixes (11, 12, 13) du réseau de communications.4. Cartographic method according to claim 2 or 3, characterized in that the relaying procedure consists of at least relaying the navigation aid request by means of at least first, second and third fixed transmitters (11, 12, 13 ) of the communications network.
5. Procédé cartographique suivant la revendication 4, caractérisé en ce que la procédure d'estimation consiste au moins à élaborer les coordonnées géographiques estimées (X0, Y0) en fonction au moins des coordonnées géographiques (Xll, Yll; X12, Y12; X13, Y13) des premier, second, et troisième transmetteurs fixes (11, 12, 13) du réseau et en fonction de paramètres de réception (Qll, Q12, Q13) de la requête d'aide à la navigation par ces premier, second, et troisième transmetteurs fixes.5. Cartographic method according to claim 4, characterized in that the estimation procedure consists at least of developing the estimated geographic coordinates (X0, Y0) as a function of at least the geographic coordinates (Xll, Yll; X12, Y12; X13, Y13) of the first, second, and third fixed transmitters (11, 12, 13) of the network and according to reception parameters (Qll, Q12, Q13) of the navigation aid request by these first, second, and third fixed transmitters.
6. Procédé cartographique suivant l'une quelconque des revendications précédentes, caractérisé en ce que la procédure de réponse inclut une procédure de repérage, consistant au moins à transmettre au transmetteur mobile (1) les coordonnées géographiques estimées (X0, YO) .6. Cartographic method according to any one of the preceding claims, characterized in that the response procedure includes a locating procedure, consisting at least of transmitting to the mobile transmitter (1) the estimated geographic coordinates (X0, YO).
7. Procédé cartographique suivant l'une quelconque des revendications précédentes, caractérisé en ce que la procédure d'affichage inclut une opération de focalisation consistant à afficher sur l'écran (10) du transmetteur mobile (1), de façon différenciée, le point (P) de la carte géographique (K) qui est rer>éré par les coordonnées estimées (X0, Y0) . 7. Cartographic method according to any one of the preceding claims, characterized in that the display procedure includes a focusing operation consisting in displaying on the screen (10) of the mobile transmitter (1), in a differentiated manner, the point (P) of the geographic map (K) which is rer> erated by the estimated coordinates (X0, Y0).
8. Procédé cartographique suivant l'une quelconque des revendications précédentes, caractérisé en ce que la procédure d'affichage inclut une opération d'ajustement consistant à modifier l'échelle de la carte géographique (K) affichée, en réponse à une demande de changement d'échelle formulée à partir du transmetteur mobile (1).8. Cartographic method according to any one of the preceding claims, characterized in that the display procedure includes an adjustment operation consisting in modifying the scale of the displayed geographic map (K), in response to a change request scale formulated from the mobile transmitter (1).
9. Procédé cartographique suivant l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une procédure d'orientation, consistant au moins à déterminer, par rapport à une direction fixe (D) , l'orientation du transmetteur mobile (1) au moins pendant la procédure d'affichage.9. Cartographic method according to any one of the preceding claims, characterized in that it comprises an orientation procedure, consisting at least of determining, with respect to a fixed direction (D), the orientation of the mobile transmitter (1 ) at least during the display procedure.
10. Procédé cartographique suivant la revendication 9, caractérisé en ce que la procédure d'affichage inclut une opération de suivi consistant à modifier l'orientation de la carte affichée (K) en réponse à un changement d'orientation du transmetteur mobile (1). 10. Cartographic method according to claim 9, characterized in that the display procedure includes a tracking operation consisting in modifying the orientation of the displayed map (K) in response to a change in orientation of the mobile transmitter (1) .
PCT/FR2001/001697 2000-06-05 2001-05-31 Mapping method WO2001094882A2 (en)

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FR0007131A FR2809824B1 (en) 2000-06-05 2000-06-05 NAVIGATION METHOD

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FR2809824A1 (en) 2001-12-07
AU7417401A (en) 2001-12-17
WO2001094882A3 (en) 2002-05-23
WO2001094882B1 (en) 2002-09-06
FR2809824B1 (en) 2005-06-03

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