WO1996014558A1 - Dispositif de navigation - Google Patents

Dispositif de navigation Download PDF

Info

Publication number
WO1996014558A1
WO1996014558A1 PCT/CA1995/000627 CA9500627W WO9614558A1 WO 1996014558 A1 WO1996014558 A1 WO 1996014558A1 CA 9500627 W CA9500627 W CA 9500627W WO 9614558 A1 WO9614558 A1 WO 9614558A1
Authority
WO
WIPO (PCT)
Prior art keywords
map
map data
display
data
user
Prior art date
Application number
PCT/CA1995/000627
Other languages
English (en)
Inventor
David C. Hill
Simon C. L. Treadwell
Original Assignee
Navitrak International Corporation
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 Navitrak International Corporation filed Critical Navitrak International Corporation
Priority to AU37396/95A priority Critical patent/AU3739695A/en
Publication of WO1996014558A1 publication Critical patent/WO1996014558A1/fr

Links

Classifications

    • 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
    • G09B29/106—Map spot or coordinate position indicators; Map reading aids using electronic means
    • 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

Definitions

  • This invention relates to navigation devices, and in particular to a compact unit which combines GPS data with map data, in a user-friendly interface.
  • Examples are units sold by Eagle Electronics, Sony, Socket Communications, Panasonic, Trimble, lcom, and Magellan.
  • the hand-held units do not have a map display, or if they do, it is not a full display of a "real" map. Instead, it is a collection of way points or vectors which are used to provide a "map-like" display of key features such as roads, landmarks, etc.. None of the hand-held devices known to the inventors appears to provide a display of an actual digitized map image, with all of the visual information which a good map typically provides. This impacts on user-friendliness and on the overall attractiveness of the units, and thus on effectiveness. Also, none of the above devices appears to provide compass information of the user's orientation on the display. DISCLOSURE OF INVENTION
  • the inventors have recognized a need for a compact, user-friendly device which would display a true map image and provide position information via a GPS unit, and display the user's orientation in relation to the map. It is an object of the invention to provide such a unit.
  • the map data is stored on PCMCIA (Personal Computer Memory Card International Association) flash memory cards or "flashcards", which are considerably more compact than compact discs, and which do not require a bulky CD-ROM unit.
  • PCMCIA Personal Computer Memory Card International Association
  • flashcards are similar in size and appearance to a common credit card, but incorporate a memory chip capable of holding up to about 80 MB of data at present, which is generally enough for the images of eight or nine conventional topographical maps, e.g. eight or nine of the USGS's 7.5 minute, 1 :24000 scale quadrangle series of maps.
  • the flashcards plug into a simple port in the device.
  • the user interface is designed to be easy to use, and easy to learn.
  • the unit can be hand held, does not require secondary paper maps or compasses, and can locate the users to within typically less than 20 meters (typical GPS Standard Positioning Service (SPS) accuracy ) of their true position.
  • Maps are displayed on a colour LCD screen, and positional information is displayed on top of the map, giving the user real-time navigation on a map of the terrain currently being traversed.
  • a reference point such as a destination or landmark
  • Icons can be assigned to these reference points, and keys may be provided bearing the specific icons.
  • the device also includes an electronic digital compass.
  • Information from the compass is displayed to provide orientation information for the user relative to the map display.
  • the cursor preferably is or includes an arrow which points north, so that the device can be rotated to correctly orient the displayed map to the ground.
  • Fig. 1 is a block diagram of the device
  • Fig. 2 is a block diagram of the logic board portion of the device;
  • Fig. 3 is a plan view of the device in the open position;
  • Fig. 4 is a perspective view of the device, in the open position;
  • Fig. 5 is a perspective view of the device in the closed position;
  • Fig. 6 is a top view of the device in the closed position;
  • Fig. 7 is a side view of the device in the closed position
  • Fig. 8 is a front view of the device in the closed position
  • Fig. 9 is a view of the display, showing a small portion of a topographical map
  • Fig. 1 0 is a view of an alternative configuration for the device
  • Fig. 1 1 is a view of a possible novice mode grid display
  • Fig. 1 2 is a view of a possible text display
  • Fig. 1 3 is a view of a possible expert mode course deviation display
  • Fig. 14 is a view of possible softkeys and pop-up menus
  • Fig. 1 5 is a view of a possible novice mode user interface
  • Fig. 1 6 is a view of a possible data management scheme for the expert mode.
  • LCD Screen 2 A high resolution color backlit screen is provided.
  • the viewing area of the screen preferably is in the range of 4 to 6 inches diagonally.
  • the map display enables display of actual position, identify destination position and waypoints. The user has the option to zoom in and out on desired locations with minimum data loss (resolution) and to scroll the map north, south, east, and west.
  • Keypad 4 A limited-use keypad is used for inputting data and scrolling through menu choices.
  • the keypad can be used to enter destinations, waypoints or other reference points, such as a car, a building, a base camp, a favorite fishing hole, or any other desired landmark. These are memorized positions saved to the flashcard.
  • GPS Unit 6 The GPS unit is an "off the shelf” component. Suitable units could be obtained from a number of vendors, including Rockwell, Panasonic, Trimble, and Novetel. These receivers typically provide accuracy to within less than 20 meters.
  • Logic board 8 The logic board, shown schematically in Fig. 2, provides the following functionality: reads and writes the flashcard data i. displays the map data on the LCD screen in color ii. interfaces with the GPS receiver, interprets the signal, displays the co-ordinates on the LCD screen (both numerically and represented by a cursor).
  • the cursor represents the GPS coordinates for the georeferenced map data being displayed.
  • iv. compares GPS-sensed position with data on flashcard and displays error message and longitude/latitude values if there is no match between the two, i.e. if the location is outside the areas covered by the flashcard
  • the logic card includes SRAM 81 , program ROM 82, a CPU 83, and FPGA based control and interface area 84, as well as a flashcard interface 85.
  • SRAM static random access memory
  • the program ROM contains the software to implement the above functions.
  • the CPU is a 32-bit RISC microprocessor, which minimizes power consumption and provides sufficient speed for the map display.
  • the control and interface logic area contains support circuitry for the microprocessor and memory, power conservation and battery monitoring circuitry, interface circuitry to other parts of the system, and a hardware "serial number" (not unique to each device) for use in decrypting map data. (The maps may or may not be encrypted to guard against unauthorized use or copying.)
  • Flashcard 10 The flashcard is an existing product, presently in use primarily in connection with computers and personal organizers.
  • Information stored on this flashcard is a rasterized color tiff file or encoded format.
  • a number of fixed points 1 1 geo-referenced to latitude/longitude values, are located on the map.
  • the map data can vary greatly in size, scale and area covered.
  • One example is a display 2500 pixels by 2500 pixels, with a map representing 20,000 ft. by 20,000 ft. (for U.S. scaled maps), such that each pixel has a dimension of 8 feet.
  • Each map image is geo-referenced using the Universal Transverse Mercator (UTM) coordinate system, which can be based for example on NAD 83 or NAD 27, in the units of either feet or meters, using for example the GRS 80 ellipsoid.
  • Each flash card containing map data preferably is keyed to prevent unauthorized copying of the data.
  • Flashcard Interface 12 connection port for the flashcard: The interface is defined by the PCMCIA standards for Type II flashcards.
  • Digital Compass 14 May be an existing product that can be purchased from Timex or Seiko or Casio, for example.
  • Rechargeable Battery 16 This may be an "off the shelf” component.
  • Housing 18 The housing is of rugged plastic construction, with shock-absorbing rubber mounts for internal components.
  • the housing preferably is in two halves 19 and 20, with a hinge 21 and a latch 22. Rubber seals around the periphery of the two halves create an essentially waterproof compartment.
  • the keypad and LCD screen are preferably mounted in a waterproof or water resistant manner as well, so that water cannot seep into the interior even with the housing in the open position.
  • the unit operation is as follows: 1 ) The unit is turned on via the "on" button 30. 2) The GPS unit locates the user, and the logic board interprets this information and displays the latitude and longitude on the LCD display. 3) Immediately after initialization, the flashcard is scanned by the logic board. If there is no flashcard installed or if the wrong flashcard is installed for the user's location, only longitude/latitude values and an error message are displayed. The user is prompted for the proper flashcard. This message will be followed by the novice mode grid view.
  • the device will proceed to the novice mode normal view. If the device is configured for expert mode, the initialization will be the same apart from the mode of operation.
  • the map image is displayed on the LCD screen.
  • the map is oriented such that the cursor (representing actual position) is in the center of the display.
  • the map is repositioned to return the cursor to the center, when the cursor moves near the edge of the display.
  • the device provides the user with menu driven options, selectable using buttons or keys. The user can easily toggle between the map display and the menu selection window or screen.
  • the default setting will be the novice mode. In this mode the user is able to see his or her current position, speed and direction, enter a desired destination, and know the distance and direction to the desired destination.
  • Novice Mode If the user presses Destination, they are provided softkeys that enable them to know the distance or direction to their desired destination as well as change their desired destination. If the user presses Change, they can select a new destination by manoeuvring a destination cursor whose co-ordinates are updated in real time at the bottom of the screen. Once the new destination is selected, the user simply presses Enter, and is returned to the previous destination menu. The user is returned back to the location menu after a short time or by pressing an escape key.
  • expert mode enables the user to: - store navigational points such as destinations and route markers plan routes, whether they are new routes or previous tracks that are modified; - plan routes, whether they are new routes or previous tracks that are modified;
  • arrow keys 36 to move a floating cursor over the screen to a preferred location or destination by indicating direction of intended travel.
  • the map scrolls to permit the cursor to keep moving relative to the map.
  • the unit using the digital compass, will indicate direction of travel; when displayed in conjunction with the map the user will be able to pick the best route.
  • a number of positions can be placed on the screen and labelled by a letter code or as a picture (house, car, camp), and can be stored to the flashcard for future reference. This is accomplished by using the arrow keys to move the cursor to the desired location, and then pressing one of the "icon" buttons 38.
  • the icons shown in Fig. 4 are examples only; fewer or more or different icons could be used, or for that matter there is no essential requirement to use icons; numbers or letters could be used, although icons offer obvious advantages in terms of user friendliness.
  • the user can select map only, or map plus GPS.
  • the map only selection is useful to permit the user to program the unit before setting out on the trip.
  • the user presses the "display map" button 40.
  • the user can elect to have the latitude and longitude displayed, by pressing the "Lat/long” button 42. This could be useful in situations where the users want to tell other people where they are, such as where a rescue or meeting is desired.
  • the unit will be equipped with a DC adapter or cigarette lighter adapter for optional power sources 14)
  • the device has mode settings options which enable the user to operate in a mode that provides latitude, longitude and a default altitude (sea level) upon receipt of three satellite signals, or a 3D mode, which includes an accurate altitude reading, given receipt of four satellite signals.
  • the device illustrates actual speed and heading information along with a displayed comparison of heading with respect to an established course. The device provides time estimates to destination or waypoint based on average velocity.
  • the unit will power down after a set interval, such as four minutes for example, to reduce power consumption and to thus prolong battery life.
  • the user may also turn the unit off, by pressing the "off" button 44.
  • the unit will issue a warning when battery power gets low.
  • full functionality may be disabled, such that only compass information or GPS information may be displayed, to reduce demands on the battery. 17)
  • a simple compass display can be selected, so that a visual display of a compass is presented.
  • Option 1 is a grid display which shows the navigational information in graphical representation. This display is conceptualized in Figs. 1 1 and 1 5.
  • the grid display With a digitized map inserted into the device, the grid display provides three views:
  • a grid view which provides a cursor that shows the location of the user and the map district in which the user is positioned
  • a zoomed out (1 :4) view which provides a cursor that shows the location of the user and four times more of the surrounding terrain than seen in the normal view
  • Option 2 is a text and grid display, which additionally presents the navigation information in a textual format as shown in Fig. 1 2. This display is accessible with or without a digital map card.
  • Option 1 has been selected as the preferred embodiment, since it offers two main advantages: it provides an incentive for users to purchase digitized map because map data is required to unleash the full potential of the device; and it follows the guiding philosophy that the device should be as graphical and as intuitive as possible.
  • the expert mode involves changes to the softkey menus. These differences are highlighted in Fig. 1 7.
  • the two types of displays that were considered for novice mode were considered again, as well as a third type of display, namely Option 3, a Course Deviation display which has a graphical indicator to show any course deviation. This indicator is illustrated in Fig. 1 3.
  • the preferred embodiment thus includes options 1 and 3.
  • Option 1 Softkeys and Pop-Up Menus
  • Option 2 Pop-Up Menus
  • Softkeys are physical keys that when pressed, activate the feature that has been associated with them.
  • the rationale for using softkeys is that they limit the number of keystrokes that the user must perform to invoke the desired feature.
  • Their main drawback is that without another user interface, it is difficult to present a logical functional hierarchy.
  • a pop-up menu interface is simpler than developing both a softkey and pop menu interface.
  • a pop-up menu interface has the benefit of not being tied to any physical keys, and hence is very modular by nature.
  • the main drawback of this alternative is the relatively high number of keystrokes that are required to access the most basic functions.
  • Set-up mode has a user interface that is similar to data management scheme discussed in the expert mode sub-section.
  • the invention provides a GPS-based navigation device which displays a digitized map image.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Business, Economics & Management (AREA)
  • Mathematical Physics (AREA)
  • Automation & Control Theory (AREA)
  • Navigation (AREA)
  • Instructional Devices (AREA)

Abstract

Le dispositif de navigation (1) affiche une image vraie d'une carte numérisée et fournit des informations de position par l'intermédiaire d'une unité GPS (6). Un compact électronique intégré (14) fournit des données afin d'orienter correctement l'affichage de la carte par rapport au sol. Le dispositif reçoit une image de carte provenant de carte à mémoire flash ou carte 'Flash Card' (10), laquelle se branche sur un simple branchement d'accès dans le dispositif. Un certain nombre de destinations, de points de cheminements ou autres points de référence peuvent être mémorisés.
PCT/CA1995/000627 1994-11-04 1995-11-02 Dispositif de navigation WO1996014558A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU37396/95A AU3739695A (en) 1994-11-04 1995-11-02 Navigation device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33611094A 1994-11-04 1994-11-04
US08/336,110 1994-11-04

Publications (1)

Publication Number Publication Date
WO1996014558A1 true WO1996014558A1 (fr) 1996-05-17

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PCT/CA1995/000627 WO1996014558A1 (fr) 1994-11-04 1995-11-02 Dispositif de navigation

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WO (1) WO1996014558A1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998057190A1 (fr) * 1997-06-10 1998-12-17 Raytheon Aircraft Company Procede et dispositif pour systeme de localisation cooperatif reposant sur le systeme mondial de localisation (gps)
WO1999006798A1 (fr) * 1997-07-28 1999-02-11 Laux Joseph J Appareil de navigation portable et procede de navigation pour sportif
EP0928720A2 (fr) * 1998-01-07 1999-07-14 CLARION Co., Ltd. Dispositif de reproduction de données enregistrées monté dans un véhicule
FR2774205A1 (fr) * 1998-01-27 1999-07-30 Philips Electronics Nv Appareil de guidage d'un vehicule faisant apparaitre ou disparaitre des elements de carte affiches
EP1014600A2 (fr) * 1998-12-18 2000-06-28 Siegmund Baur Système d' information et procédé de commande
WO2000065308A1 (fr) * 1999-04-27 2000-11-02 Fink Willi R Systeme de navigation mobile commande par satellite
DE19944080A1 (de) * 1999-09-15 2001-03-22 Audi Ag Navigationsvorrichtung
DE19944081A1 (de) * 1999-09-15 2001-03-22 Audi Ag Navigationsvorrichtung
DE19947481A1 (de) * 1999-10-01 2001-04-05 Borg Instr Gmbh Memory Card Navigation
GB2359888A (en) * 2000-03-01 2001-09-05 Hewlett Packard Co Displaying directional indications in handheld devices
WO2002042717A2 (fr) * 2000-11-21 2002-05-30 Qualcomm Incorporated Procede et systeme servant a orienter un affichage cartographique dans un dispositif mobile ou portable
GB2370460A (en) * 2000-12-21 2002-06-26 Nokia Mobile Phones Ltd Segmented route guidance
GB2376861A (en) * 2001-06-19 2002-12-24 Nec Technologies Automatically-orientating electronic map
WO2004088248A1 (fr) * 2003-04-02 2004-10-14 Wong, Lai Wan Affichage d'une carte numerique
EP1847806A2 (fr) * 2004-03-19 2007-10-24 Pioneer Corporation Processeur d'information portable
WO2008129437A1 (fr) * 2007-04-18 2008-10-30 Koninklijke Philips Electronics N.V. Système et procédé pour afficher une carte statique
DE102005027669B4 (de) * 2004-06-16 2017-01-19 Suunto Oy Wristop-Computer und ein Verfahren im Zusammenhang damit
US11029264B2 (en) 2013-11-08 2021-06-08 Schlumberger Technology Corporation Spectral analysis with spectrum deconvolution

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993005474A1 (fr) * 1991-08-28 1993-03-18 Motorola, Inc. Systeme de guidage
WO1993009401A1 (fr) * 1991-10-30 1993-05-13 Georges Bertrand Lecteur de cartes numerisees portable
DE4204164A1 (de) * 1992-02-13 1993-08-19 Deutsche Aerospace Positions- und missionsdatengeraet mit gps-gestuetztem display
DE9314826U1 (de) * 1993-02-25 1994-01-05 Ibp Pietzsch Gmbh, 76275 Ettlingen Tragbares elektronisches Gerät

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993005474A1 (fr) * 1991-08-28 1993-03-18 Motorola, Inc. Systeme de guidage
WO1993009401A1 (fr) * 1991-10-30 1993-05-13 Georges Bertrand Lecteur de cartes numerisees portable
DE4204164A1 (de) * 1992-02-13 1993-08-19 Deutsche Aerospace Positions- und missionsdatengeraet mit gps-gestuetztem display
DE9314826U1 (de) * 1993-02-25 1994-01-05 Ibp Pietzsch Gmbh, 76275 Ettlingen Tragbares elektronisches Gerät

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6043777A (en) * 1997-06-10 2000-03-28 Raytheon Aircraft Company Method and apparatus for global positioning system based cooperative location system
WO1998057190A1 (fr) * 1997-06-10 1998-12-17 Raytheon Aircraft Company Procede et dispositif pour systeme de localisation cooperatif reposant sur le systeme mondial de localisation (gps)
WO1999006798A1 (fr) * 1997-07-28 1999-02-11 Laux Joseph J Appareil de navigation portable et procede de navigation pour sportif
CH693117A5 (de) * 1997-07-28 2003-02-28 Joseph J Laux Tragbares Navigationsgerät und Navigationsverfahren für Sportler.
EP0928720A3 (fr) * 1998-01-07 2000-11-02 CLARION Co., Ltd. Dispositif de reproduction de données enregistrées monté dans un véhicule
EP0928720A2 (fr) * 1998-01-07 1999-07-14 CLARION Co., Ltd. Dispositif de reproduction de données enregistrées monté dans un véhicule
FR2774205A1 (fr) * 1998-01-27 1999-07-30 Philips Electronics Nv Appareil de guidage d'un vehicule faisant apparaitre ou disparaitre des elements de carte affiches
EP1014600A3 (fr) * 1998-12-18 2001-01-03 Siegmund Baur Système d' information et procédé de commande
EP1014600A2 (fr) * 1998-12-18 2000-06-28 Siegmund Baur Système d' information et procédé de commande
WO2000065308A1 (fr) * 1999-04-27 2000-11-02 Fink Willi R Systeme de navigation mobile commande par satellite
DE19944080A1 (de) * 1999-09-15 2001-03-22 Audi Ag Navigationsvorrichtung
DE19944081A1 (de) * 1999-09-15 2001-03-22 Audi Ag Navigationsvorrichtung
DE19947481A1 (de) * 1999-10-01 2001-04-05 Borg Instr Gmbh Memory Card Navigation
GB2359888A (en) * 2000-03-01 2001-09-05 Hewlett Packard Co Displaying directional indications in handheld devices
WO2002042717A3 (fr) * 2000-11-21 2003-02-27 Qualcomm Inc Procede et systeme servant a orienter un affichage cartographique dans un dispositif mobile ou portable
WO2002042717A2 (fr) * 2000-11-21 2002-05-30 Qualcomm Incorporated Procede et systeme servant a orienter un affichage cartographique dans un dispositif mobile ou portable
US7050905B2 (en) 2000-12-21 2006-05-23 Nokia Corporation Navigation system with updating segments
GB2370460A (en) * 2000-12-21 2002-06-26 Nokia Mobile Phones Ltd Segmented route guidance
GB2376861A (en) * 2001-06-19 2002-12-24 Nec Technologies Automatically-orientating electronic map
GB2376861B (en) * 2001-06-19 2005-08-24 Nec Technologies Apparatus and method for displaying an electronic map on a mobile electronic device
WO2004088248A1 (fr) * 2003-04-02 2004-10-14 Wong, Lai Wan Affichage d'une carte numerique
EP1847806A2 (fr) * 2004-03-19 2007-10-24 Pioneer Corporation Processeur d'information portable
EP1847806A3 (fr) * 2004-03-19 2009-01-21 Pioneer Corporation Processeur d'information portable
US7702657B2 (en) 2004-03-19 2010-04-20 Pioneer Corporation Portable information processor
DE102005027669B4 (de) * 2004-06-16 2017-01-19 Suunto Oy Wristop-Computer und ein Verfahren im Zusammenhang damit
WO2008129437A1 (fr) * 2007-04-18 2008-10-30 Koninklijke Philips Electronics N.V. Système et procédé pour afficher une carte statique
US11029264B2 (en) 2013-11-08 2021-06-08 Schlumberger Technology Corporation Spectral analysis with spectrum deconvolution

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