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WO2011063860A1 - Dispositif et procédé de navigation - Google Patents

Dispositif et procédé de navigation Download PDF

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Publication number
WO2011063860A1
WO2011063860A1 PCT/EP2009/068052 EP2009068052W WO2011063860A1 WO 2011063860 A1 WO2011063860 A1 WO 2011063860A1 EP 2009068052 W EP2009068052 W EP 2009068052W WO 2011063860 A1 WO2011063860 A1 WO 2011063860A1
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WO
WIPO (PCT)
Prior art keywords
data
lighting condition
image
input
texture
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.)
Ceased
Application number
PCT/EP2009/068052
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English (en)
Inventor
Silvan Stock
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TomTom Belgium NV
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TomTom Belgium NV
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Filing date
Publication date
Application filed by TomTom Belgium NV filed Critical TomTom Belgium NV
Publication of WO2011063860A1 publication Critical patent/WO2011063860A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers
    • G01C21/3679—Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities

Definitions

  • This invention relates to devices, such as navigation devices, for displaying a representation of a landmark and to methods for those devices.
  • the invention also concerns 3 -dimensional graphic model data and methods for generating such data.
  • Illustrative embodiments of the invention relate to portable navigation devices (so- called PNDs), in particular PNDs that include Global Navigation Satellite System (GNSS) signal reception and processing functionality.
  • PNDs portable navigation devices
  • GNSS Global Navigation Satellite System
  • Other embodiments relate, more generally, to any type of processing device that is configured display 3- dimensional representations of landmarks.
  • Portable navigation devices that include GNSS signal reception and processing functionality are well known and are widely employed as in-car or other vehicle navigation systems.
  • a modern PNDs comprises a processor, memory (at least one of volatile and non-volatile, and commonly both), and map data stored within said memory.
  • the processor and memory cooperate to provide an execution environment in which a software operating system may be established, and additionally it is commonplace for one or more additional software programs to be provided to enable the functionality of the PND to be controlled, and to provide various other functions.
  • these devices further comprise one or more input interfaces that allow a user to interact with and control the device, and one or more output interfaces by means of which information may be relayed to the user.
  • output interfaces include a visual display and a speaker for audible output.
  • input interfaces include one or more physical buttons to control on/off operation or other features of the device (which buttons need not necessarily be on the device itself but could be on a steering wheel if the device is built into a vehicle), and a microphone for detecting user speech.
  • the output interface display may be configured as a touch sensitive display (by means of a touch sensitive overlay or otherwise) to additionally provide an input interface by means of which a user can operate the device by touch.
  • Devices of this type will also often include one or more physical connector interfaces by means of which power and optionally data signals can be transmitted to and received from the device, and optionally one or more wireless transmitters/receivers to allow communication over cellular telecommunications and other signal and data networks, for example Wi-Fi, Wi-Max GSM, CDMA and the like.
  • PND devices of this type also include a GNSS antenna by means of which satellite- broadcast signals, including location positioning data, can be received and subsequently processed to determine a current position of the device.
  • the PND device may also include electronic gyroscopes and accelerometers which produce signals that can be processed to determine the current angular and linear acceleration, and in turn, and in conjunction with position information derived from the GNSS signal, velocity and relative displacement of the device and thus the vehicle in which it is mounted.
  • electronic gyroscopes and accelerometers which produce signals that can be processed to determine the current angular and linear acceleration, and in turn, and in conjunction with position information derived from the GNSS signal, velocity and relative displacement of the device and thus the vehicle in which it is mounted.
  • PNDs The utility of such PNDs is manifested primarily in their ability to determine a route between a first location (typically a start or current location) and a second location (typically a destination). These locations can be input by a user of the device, by any of a wide variety of different methods, for example by postcode, street name and house number, previously stored "well known” destinations (such as famous locations, municipal locations (such as sports grounds or swimming baths) or other points of interest), and favourite or recently visited destinations.
  • the PND is enabled by software for computing a "best” or "optimum” route between the start and destination address locations from the map data. A “best" or “optimum” route is determined on the basis of predetermined criteria and need not necessarily be the fastest or shortest route.
  • the selection of the route along which to guide the driver can be very sophisticated, and the selected route may take into account existing, predicted and dynamically and/or wirelessly received traffic and road information, historical information about road speeds, and the driver's own preferences for the factors determining road choice (for example the driver may specify that the route should not include motorways or toll roads).
  • the device may continually monitor road and traffic conditions, and offer to or choose to change the route over which the remainder of the journey is to be made due to changed conditions.
  • Real time traffic monitoring systems based on various technologies (e.g. mobile phone data exchanges, fixed cameras, GPS fleet tracking) are being used to identify traffic delays and to feed the information into notification systems.
  • PNDs of this type may typically be mounted on the dashboard or windscreen of a vehicle, but may also be formed as part of an on-board computer of the vehicle radio or indeed as part of the control system of the vehicle itself.
  • the navigation device may also be part of a hand-held system, such as a PDA (Portable Digital Assistant) a media player, a mobile phone or the like, and in these cases, the normal functionality of the hand-held system is extended by means of the installation of software on the device to perform both route calculation and navigation along a calculated route.
  • PDA Portable Digital Assistant
  • Route planning and navigation functionality may also be provided by a desktop or mobile computing resource running appropriate software.
  • the Royal Automobile Club provides an on-line route planning and navigation facility at http://www.rac.co.uk, which facility allows a user to enter a start point and a destination whereupon the server to which the user's PC is connected calculates a route (aspects of which may be user specified), generates a map, and generates a set of exhaustive navigation instructions for guiding the user from the selected start point to the selected destination.
  • the facility also provides for pseudo three- dimensional rendering of a calculated route, and route preview functionality which simulates a user travelling along the route and thereby provides the user with a preview of the calculated route.
  • the user interacts with the navigation device to select the desired calculated route, optionally from a list of proposed routes.
  • the user may intervene in, or guide the route selection process, for example by specifying that certain routes, roads, locations or criteria are to be avoided or are mandatory for a particular journey.
  • the route calculation aspect of the PND forms one primary function, and navigation along such a route is another primary function.
  • PNDs During navigation along a calculated route, it is usual for such PNDs to provide visual and/or audible instructions to guide the user along a chosen route to the end of that route, i.e. the desired destination. It is also usual for PNDs to display map information on-screen during the navigation, such information regularly being updated on-screen so that the map information displayed is representative of the current location of the device, and thus of the user or user's vehicle if the device is being used for in- vehicle navigation.
  • An icon displayed on-screen typically denotes the current device location, and is centred with the map information of current and surrounding roads in the vicinity of the current device location and other map features also being displayed, determined by the PND using a GNSS receiver. Additionally, navigation information may be displayed, optionally in a status bar above, below or to one side of the displayed map information, examples of navigation information include a distance to the next deviation from the current road required to be taken by the user, the nature of that deviation possibly being represented by a further icon suggestive of the particular type of deviation, for example a left or right turn. The navigation function also determines the content, duration and timing of audible instructions by means of which the user can be guided along the route.
  • a simple instruction such as "turn left in 100 m" requires significant processing and analysis.
  • user interaction with the device may be by a touch screen, or additionally or alternately by steering column mounted remote control, by voice activation or by any other suitable method.
  • a further important function provided by the device is automatic route recalculation in the event that: a user deviates from the previously calculated route during navigation (either by accident or intentionally); real-time traffic conditions dictate that an alternative route would be more expedient and the device is suitably enabled to recognize such conditions automatically, or if a user actively causes the device to perform route re-calculation for any reason.
  • a route to be calculated with user defined criteria; for example, the user may prefer a scenic route to be calculated by the device, or may wish to avoid any roads on which traffic congestion is likely, expected or currently prevailing.
  • the device software would then calculate various routes and weigh more favourably those that include along their route the highest number of points of interest (known as POIs) tagged as being for example of scenic beauty, or, using stored information indicative of prevailing traffic conditions on particular roads, order the calculated routes in terms of a level of likely congestion or delay on account thereof.
  • POIs points of interest
  • Other POI-based and traffic information-based route calculation and navigation criteria are also possible.
  • the navigation device may be arranged to display a picture of a landmark that should be visible from a user's location.
  • buildings may appear differently to a viewer, for example because of the presence of lights on the building. Accordingly, a viewer may not be able to identify a landmark from the visual representation depending on the lighting conditions.
  • Figure 1 shows the famous landmark, the Moulin Rouge, in the day time and Figure 2 shows the Moulin Rouge at night time.
  • Figure 1 shows the famous landmark, the Moulin Rouge, in the day time
  • Figure 2 shows the Moulin Rouge at night time.
  • many features are prominent such as the multi-storey building next to the mill.
  • the multi-storey building becomes obscured, the eyes being more attracted to the Moulin Rouge signs and the vanes of the mill.
  • Changes in the colour mapping fail to produce a change in the representation that reflect the changes discussed with reference to Figures 1 and 2 Summary of Invention
  • a device such as a navigation device, for displaying a representation of a landmark
  • the device comprising a display, a processor and memory having stored therein a first image of a landmark under a first lighting condition, for example day time, and a second image of the landmark under a second lighting condition, for example light present at night time (such as artificial light or moon light), wherein the processor is arranged to receive an input from which an indication of a current lighting condition can be obtained, determine from the input the current lighting condition and cause the display to display one of the first image and the second image based upon the determined current lighting condition.
  • a method for displaying a representation of a landmark comprising receiving an input from which an indication of a current lighting condition can be obtained, determining from the input the current lighting condition and retrieving from memory one of a first image and a second image based upon the determined current lighting condition and causing the display to display the retrieved image, wherein the first image is of a landmark under a first lighting condition, for example day time, and the second image is of the landmark under second lighting conditions, for example light present at night time (such as artificial light or moon light).
  • a data carrier having instructions stored thereon wherein the instructions when executed by a processor cause the processor to carry out the method of the second aspect of the invention.
  • the navigation device displays may display an image that more accurately represents the landmark under the current lighting conditions than that which would be achieved through changes in colour mapping.
  • the first image and the second image may be 3-dimensional graphic models of the landmark.
  • the first and second images may be stored in memory as a 3- dimensional graphic model data comprising boundary representation data defining surfaces of objects of the model and texture map data, the texture map data comprising, for at least one of the surfaces, first and second texture maps for applying to the at least one surface arranged such that application of the first and second texture maps to the surface is mutually-exclusive.
  • first texture map to the surface may generate the first image of the landmark and the application of the second texture map to the surface may generate the second image of the landmark.
  • Storing the images in this data structure may require less data storage compared to storing entirely separate 3-dimisional graphic model data for the first and second images. This may be particularly beneficial in a portable and/or handheld device, such as a navigation device or mobile telephone, where space is at a premium and resources, such as memory, are limited. For navigation devices in particular, it is required that map data is stored in memory and this map data may comprise numerous landmarks.
  • the invention may involve more than two images of the landmark.
  • the memory may comprise three, four, five or more images of the landmark under different lighting conditions and the processor may cause the display of an appropriate on of these images based on the determined current lighting condition.
  • the input to the processor from which the processor determines the current lighting condition may comprise time data, for example from a clock, that may be part of the device, or from time data contained in a received signal, for example from a GPS satellite.
  • the processor may determine the current lighting condition from the time data and a date.
  • the memory may have a look-up table associating the time and date with daylight hours and the processor may use the look-up table to determine the current lighting conditions.
  • the input to the processor from which the processor determines the current lighting condition may comprise location data.
  • the device may comprise a GPS sensor, the processor using the location data determined by the GPS sensor together with the time data to determine the current lighting conditions. This may allow the device to take account of changes in the amount of daylight hours as one moves around the world.
  • the input to the processor from which the processor determines the current lighting condition may comprise an input indicative of whether a vehicle's headlamps are switched on/off.
  • the device may be connected to the engine management system of the vehicle.
  • the processor may determine that the lighting conditions are dark if the headlamps are switched on and light if the headlamps are switched off.
  • the device may have a connection for connecting to an electronic output of the vehicle.
  • Such an embodiment may be beneficial as the image of the landmark in dark lighting conditions may be used when there is unexpected dark lighting conditions, for example because of fog, overcast conditions and/or heavy rain.
  • a data carrier having stored thereon 3-dimisional graphic model data, the 3 -dimensional graphic model data comprising boundary representation data defining surfaces of objects of the model and texture map data, the texture map data comprising, for at least one of the surfaces, first and second texture maps for applying to the at least one surface arranged such that application of the first and second texture maps to the surface is mutually- exclusive . It will be understood that application of the first and second texture maps to the surface is mutually-exclusive in so far as only one of the first and second texture maps are applied to a surface at any one time.
  • the first and second texture maps may represent the object under different lighting conditions, for example day time and light present at night time (such as artificial light or moon light). Accordingly, it will be understood that the first and second texture maps may comprise different lighting characteristics such as texture mapping for different light sources, such as the Sun in the day and artificial lights at night, a different brightness for the light sources and a different colour for the light sources. Alternatively, the first and second texture maps may comprise photographs taken under different lighting conditions.
  • the 3-dimisional graphic model data may include an indication of when the first and second texture maps are to be used. The indication may be under what lighting conditions the texture maps should be used.
  • the data can be used to display objects of the model under different lighting conditions, as required, whilst the amount of storage space required for storing the data is reduced compared to storing entirely separate 3-dimisional graphic model data for the different lighting conditions.
  • This can be achieved when a geometry of the surfaces of the objects remains the same under the different lighting conditions with one of the texture maps being replaced with another as the lighting conditions change.
  • a method of generating 3-dimisional graphic model data comprising storing on a data carrier boundary representation data defining surfaces of objects of a model and texture map data, the texture map data comprising, for at least one of the surfaces, first and second texture maps for applying to the at least one surface arranged such that application of the first and second texture maps to the surface is mutually- exclusive.
  • Such 3 -dimensional graphic model data may require less storage space compared storing many separate 3-dimisional graphic model data sets having the conventional one-to-one relationship between the surfaces of the boundary representation data and the texture maps to be applied to those surfaces.
  • Figure 1 is a view of the Moulin Rouge during daylight
  • Figure 2 is a view of the Moulin Rouge during night-time
  • FIG 3 is a schematic illustration of a navigation device communicating with a Global Navigation Satellite System (GNSS);
  • Figure 4 is a schematic illustration of electronic components arranged to provide a navigation device in accordance with an embodiment of the invention;
  • GNSS Global Navigation Satellite System
  • Figure 5 is a schematic illustration of the manner in which a navigation device may receive information from a server over a wireless
  • Figures 6A and 6B are illustrative perspective views of a navigation device
  • Figure 7 is a schematic of a data structure according to an embodiment of the invention.
  • Figure 8 is an illustration of a 3 -dimensional image generated by the invention.
  • a navigation device is intended to include (without limitation) navigation devices, irrespective of whether that device is embodied as a PND, a navigation device built into a vehicle, or indeed a computing resource (such as a desktop or portable personal computer (PC), mobile telephone or portable digital assistant (PDA)) executing route planning and navigation software.
  • a computing resource such as a desktop or portable personal computer (PC), mobile telephone or portable digital assistant (PDA)
  • Fig. 3 illustrates an example view of Global Navigation Satellite System (GNSS) 100, usable by navigation devices 140.
  • GNSS Global Navigation Satellite System
  • a GNSS comprise a plurality of satellites 120 in orbit about the earth 124. The orbit of each satellite 120 is not necessarily synchronous with the orbits of other satellites 120 and, in fact, is likely asynchronous.
  • the GNSS satellites relay their location to receiving units 140 via signals 160.
  • the GNSS receiver 140 receives the spread spectrum GNSS satellite signals 160 and determines its position from the position information relayed by the satellites.
  • the navigation device of the invention may use GPS, formerly known as NAVSTAR, Galileo, GLOSNASS, or any other suitable GNSS .
  • the GNSS incorporates a plurality of satellites 120 which orbit the earth in extremely precise orbits.
  • the spread spectrum signals 160 continuously transmitted from each satellite 120, utilize a highly accurate frequency standard accomplished with an extremely accurate atomic clock.
  • Each satellite 120 as part of its data signal transmission 160, transmits a data stream indicative of that particular satellite 120.
  • the GNSS receiver device 140 generally acquires spread spectrum GNSS satellite signals 160 from at least three satellites 120 for the GNSS receiver device 140 to calculate its two-dimensional position by triangulation. Acquisition of an additional signal, resulting in signals 160 from a total of four satellites 120, permits the GNSS receiver device 140 to calculate its three-dimensional position in a known manner.
  • the GNSS system is implemented when a device, specially equipped to receive GNSS data, begins scanning radio frequencies for GNSS satellite signals.
  • the device Upon receiving a radio signal from a GNSS satellite, the device determines the precise location of that satellite via one of a plurality of different conventional methods. The device will continue scanning, in most instances, for signals until it has acquired at least three different satellite signals (noting that position is not normally, but can be determined, with only two signals using other triangulation techniques). Implementing geometric triangulation, the receiver utilizes the three known positions to determine its own two-dimensional position relative to the satellites. This can be done in a known manner. Additionally, acquiring a fourth satellite signal will allow the receiving device to calculate its three dimensional position by the same geometrical calculation in a known manner. The position and velocity data can be updated in real time on a continuous basis by an unlimited number of users.
  • FIG 4 is an illustrative representation of electronic components of a navigation device 200 according to a preferred embodiment of the present invention, in block component format. It should be noted that the block diagram of the navigation device 200 is not inclusive of all components of the navigation device, but is only representative of many example components.
  • the electronic components of the navigation device 200 are located within a housing such as that shown in Figures 6 A and 6B.
  • the navigation device includes a processing device 210 connected to an input device 220 and a display screen, in this embodiment an LCD 240, comprising a backlight driver 241 connected with the processing device 210 .
  • the input device 220 can include a keyboard device, voice input device, touch panel and/or any other known input device utilised to input information; and the display screen 240 can include any type of display screen such as an LCD display, for example.
  • the input device 220 and display screen 240 are integrated into an integrated input and display device, including a touchpad or touch screen input so that a user need only touch a portion of the display screen 240 to select one of a plurality of display choices or to activate one of a plurality of virtual buttons.
  • the navigation device may include an output device 260 to 262, for example a loudspeaker 261 , an audio amplifier 262 and audio codec 260.
  • the audio device 260 to 262 can produce audio commands for directing the user in accordance with a determined navigable path.
  • processing device 210 is operatively connected to and set to receive input information from input device 220 via a connection 225, and operatively connected to at least one of display screen 240 and output device 260, via output connections 245 and 246, to output information, including a current location, thereto. Further, the processing device 210 is operably coupled to a memory resource 230 via connection 235.
  • the memory resource 230 comprises, for example, a volatile memory, such as a Random Access Memory (RAM) and a non- volatile memory, for example a digital memory, such as a flash memory.
  • the memory resource has stored therein map data which comprises a map of navigable paths in an area, for example, a map of navigable paths in a country. In this embodiment, each path of the map data is segmented with each segment having data associated therewith that defined attributes of that segment, for example speed limits, traffic profiles, other road regulations, etc.
  • the map data has associated therewith 3-dimensional graphic model data of buildings and other landmarks that can be displayed to the user on display 240.
  • the 3-dimensional graphic model data may be displayed as a 3-D map with an indication of the calculated route, which is updated as the user travels with the navigation device or 3-D images of specified landmarks that may be displayed to the user as the user passes those landmarks.
  • landmarks may buildings, geographic feature or other object in the landscape that may be of interest to the user or may be used by the user as a navigational aid.
  • each landmark of the 3-D graphic model data there is a first image of a landmark under a first lighting condition, for example day time such as the Moulin Rouge shown in Figure 1 and a second image of the landmark under a second lighting condition, for example light present at night time such as the Moulin Rouge shown in Figure 2.
  • a first lighting condition for example day time such as the Moulin Rouge shown in Figure 1
  • a second image of the landmark under a second lighting condition for example light present at night time such as the Moulin Rouge shown in Figure 2.
  • the 3-D graphic model data has the structure as shown.
  • the first and second images are stored in memory 230 as a 3- dimensional graphic model data 400 comprising boundary representation data 402 defining surfaces of objects of the model, for example as a series of polygons, and texture map data 404 and 406.
  • the texture map data comprising for each surface of the polygons defined by the boundary representation data 402, first and second texture maps 404, 406 for applying to the surface.
  • the texture maps 404, 406 are arranged such that application of the first and second texture maps to the surface is mutually-exclusive, i.e. only one of the first and second texture maps 404, 406 are applied to a surface at any one time.
  • texture maps 404, 406 for the different lighting conditions are not simple transformations of an underlying texture map (as in multitexturing). For example, the position, brightness and colour of light sources may be changed.
  • the 3-dimisional graphic model data 400 further includes a data item 408a, 408b for each texture map 404,406 providing an indication of when the texture map 404, 406 is to be used.
  • the indication 408a, 408b may be a flag indicating whether the image should be displayed when there is daylight or when it is nighttime.
  • Application of the first texture map 404 to the surface may generate the first image of the landmark and the application of the second texture map 406 to the surface may generate the second image of the landmark.
  • An example of the resultant image is shown in Figure 8. In Figure 8, a daytime texture has been applied to the surfaces defined by the boundary representation data 402.
  • Figure 4 further illustrates an operative connection between the processing device 210 and a GNSS antenna 250 and receiver 251 via connection 255.
  • the antenna may be a GNSS patch antenna or helical antenna for example.
  • the navigation device 200 further comprises a connection (a further, second receiver) 270 for detachably connecting to a cellular modem 280, such as a mobile telephone, for receiving broadcast signals, such as BCCH, from base stations of cellular networks.
  • the connection 270 may be used to establish a data connection between the navigation device 200 and the Internet or any other network for example, and/or to establish a connection to a server via the Internet or some other network for example.
  • device 280 may be a portable television receiver or a radio receiver that can receive TMS/RDS information.
  • the electronic components shown in Figure 4 are powered by power source 290, in this case a power management integrated circuit 290, in a conventional manner.
  • the navigation device 200 comprises a receiver 295, in this embodiment a connector for connecting to position sensors, in this embodiment a gyroscope 296 and accelerometer 297, such that the CPU 210 can receive signals from the gyroscope 296 and accelerometer 297.
  • a receiver 295 in this embodiment a connector for connecting to position sensors, in this embodiment a gyroscope 296 and accelerometer 297, such that the CPU 210 can receive signals from the gyroscope 296 and accelerometer 297.
  • the components shown in Figure 4 may be in communication with one another via wired and/or wireless connections and the like.
  • the scope of the navigation device 200 of the present application includes a portable or handheld navigation device 200.
  • the portable or handheld navigation device 200 of Figure 4 can be connected or "docked" in a known manner to a vehicle such as a bicycle, a motorbike, a car or a boat for example by using the mounting device 292/294 shown in Figures 6a and 6b. Such a navigation device 200 is then removable from the docked location for portable or handheld navigation use.
  • the navigation device 200 may establish a "mobile” or telecommunications network connection with a server 302 via the cellular modem 280 establishing a digital connection (such as a digital connection via known Bluetooth technology for example). Thereafter, through its network service provider, the cellular device can establish a network connection (through the Internet for example) with a server 302. As such, a "mobile" network connection is established between the navigation device 200 (which can be, and often times is mobile as it travels alone and/or in a vehicle) and the server 302 to provide a "realtime" or at least very “up to date” gateway for information.
  • a "mobile” network connection is established between the navigation device 200 (which can be, and often times is mobile as it travels alone and/or in a vehicle) and the server 302 to provide a "realtime" or at least very “up to date” gateway for information.
  • the establishing of the network connection between the mobile device (via a service provider) and another device such as the server 302, using the Internet (such as the World Wide Web) for example, can be done in a known manner. This can include use of TCP/IP layered protocol for example.
  • the mobile device can utilize any number of communication standards such as DVB-H, DVB-T, CDMA, GSM, Wi-Max, TMC/RDS, etc.
  • an Internet connection may be utilised which is achieved via data connection, via a mobile phone or mobile phone technology within the navigation device 200 for example.
  • an Internet connection between the server 302 and the navigation device 200 is established. This can be done, for example, through a mobile phone or other mobile device and a GPRS (General Packet Radio Service)-connection (GPRS connection is a high-speed data connection for mobile devices provided by telecom operators; GPRS is a method to connect to the Internet).
  • GPRS General Packet Radio Service
  • the navigation device 200 can further complete a data connection with the mobile device, and eventually with the Internet and server 302, via existing Bluetooth technology for example, in a known manner, wherein the data protocol can utilize any number of standards, such as the GSRM, the Data Protocol Standard for the GSM standard, for example.
  • the data protocol can utilize any number of standards, such as the GSRM, the Data Protocol Standard for the GSM standard, for example.
  • a Bluetooth enabled navigation device may be used to correctly work with the ever changing spectrum of mobile phone models, manufacturers, etc., model/manufacturer specific settings may be stored on the navigation device 200 for example.
  • the data stored for this information can be updated.
  • the navigation device 200 is depicted as being in communication with the server 302 via a generic communications channel 318 that can be implemented by any of a number of different arrangements.
  • the server 302 and a navigation device 200 can communicate when a connection via communications channel 318 is established between the server 302 and the navigation device 200 (noting that such a connection can be a data connection via mobile device, a direct connection via personal computer via the internet, etc.).
  • the server 302 includes, in addition to other components which may not be illustrated, a processing device 304 operatively connected to a memory 306 and further operatively connected, via a wired or wireless connection 314, to a mass data storage device 3 12.
  • the processing device 304 is further operatively connected to transmitter 308 and receiver 310, to transmit and send information to and from navigation device 200 via communications channel 318.
  • the signals sent and received may include data, communication, and/or other propagated signals.
  • the transmitter 308 and receiver 310 may be selected or designed according to the communications requirement and communication technology used in the communication design for the navigation system 200. Further, it should be noted that the functions of transmitter 308 and receiver 310 may be combined into a signal transceiver.
  • Server 302 is further connected to (or includes) a mass storage device 312, noting that the mass storage device 3 12 may be coupled to the server 302 via communication link 3 14.
  • the mass storage device 3 12 contains a store of navigation data and map information, and can again be a separate device from the server 302 or can be incorporated into the server 302.
  • the navigation device 200 is adapted to communicate with the server 302 through communications channel 318, and includes processing device, memory, etc. as previously described with regard to Figures 4 and 5, as well as transmitter 320 and receiver 322 to send and receive signals and/or data through the communications channel 318, noting that these devices can further be used to communicate with devices other than server 302. Further, the transmitter 320 and receiver 322 are selected or designed according to communication requirements and communication technology used in the communication design for the navigation device 200 and the functions of the transmitter 320 and receiver 322 may be combined into a single transceiver.
  • Software stored in server memory 306 provides instructions for the processing device 304 and allows the server 302 to provide services to the navigation device 200.
  • One service provided by the server 302 involves processing requests from the navigation device 200 and transmitting navigation data from the mass data storage 312 to the navigation device 200.
  • Another service provided by the server 302 includes processing the navigation data using various algorithms for a desired application and sending the results of these calculations to the navigation device 200.
  • the communication channel 318 generically represents the propagating medium or path that connects the navigation device 200 and the server 302.
  • Both the server 302 and navigation device 200 include a transmitter for transmitting data through the communication channel and a receiver for receiving data that has been transmitted through the communication channel.
  • the communication channel 318 is not limited to a particular communication technology. Additionally, the communication channel 318 is not limited to a single communication technology; that is, the channel 3 1 8 may include several communication links that use a variety of technology. For example, the communication channel 318 can be adapted to provide a path for electrical, optical, and/or electromagnetic communications, etc. As such, the communication channel 318 includes, but is not limited to, one or a combination of the following: electric circuits, electrical conductors such as wires and coaxial cables, fibre optic cables, converters, radio-frequency (RF) waves, the atmosphere, empty space, etc. Furthermore, the communication channel 318 can include intermediate devices such as routers, repeaters, buffers, transmitters, and receivers, for example.
  • RF radio-frequency
  • the communication channel 318 includes telephone and computer networks. Furthermore, the communication channel 318 may be capable of accommodating wireless communication such as radio frequency, microwave frequency, infrared communication, etc. Additionally, the communication channel 318 can accommodate satellite communication.
  • the communication signals transmitted through the communication channel 318 include, but are not limited to, signals as may be required or desired for given communication technology.
  • the signals may be adapted to be used in cellular communication technology such as Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Code Division Multiple Access (CDMA), Global System for Mobile Communications (GSM), etc. Both digital and analogue signals can be transmitted through the communication channel 318. These signals may be modulated, encrypted and/or compressed signals as may be desirable for the communication technology.
  • the navigation device 200 may be provided with information from the server 302 via information downloads which may be periodically updated automatically or upon a user connecting navigation device 200 to the server 302 and/or may be more dynamic upon a more constant or frequent connection being made between the server 302 and navigation device 200 via a wireless mobile connection device and TCP/IP connection for example.
  • the processing device 304 in the server 302 may be used to handle the bulk of the processing needs; however, processing device 210 of navigation device 200 can also handle much processing and calculation, oftentimes independent of a connection to a server 302.
  • Figs 6 A and 6B are perspective views of a navigation device 200.
  • the navigation device 200 may be a unit that includes an integrated input and display device 290 (a touch panel screen for example) and the other components of Figures 4 and 5 (including but not limited to internal GPS receiver
  • the navigation device 200 may sit on an arm 292, which itself may be secured to a vehicle dashboard/window/etc. using a suction cup 294.
  • This arm 292 is one example of a docking station to which the navigation device 200 can be docked.
  • the navigation device 200 can be docked or otherwise connected to an arm 292 of the docking station by snap connecting the navigation device 292 to the arm 292 for example.
  • the navigation device 200 may then be rotatable on the arm 292, as shown by the arrow of Figure 6B.
  • a button on the navigation device 200 may be pressed, for example.
  • Other equally suitable arrangements for coupling and decoupling the navigation device to a docking station are well known to persons of ordinary skill in the art.
  • the device acquires a GNSS fix and calculates (in a known manner) the current position of the PND.
  • the navigation device 200 displays images of landmarks on display 240 at appropriate moments, such as when the navigation device 200 is in the vicinity of the landmark as determined from location data obtained via GPS receiver 251.
  • the processor 210 receives an input which provides an indication of a current lighting condition, in this embodiment a time and date from an internal clock (not shown) and location data from GPS receiver
  • the processor 210 determines from the input the current lighting condition, in this embodiment by reference to a look-up table stored in memory 230 specifying for what time, date and location one would expect daylight or night-time.
  • the processor 210 causes the display 240 to display one of the first image and the second image. For example, the processor 210 determines from the look-up table that it is daytime, the processor 210 selects the image having a corresponding indication 408a, 408b that the image should be used during daytime. This selected image is then sent to the display 240.
  • the input to the processor 210 from which the processor determines the current lighting condition may comprise an input indicative of whether a vehicle's headlamps are switched on/off This may be received via an appropriate connection (not shown).
  • the device may be connected to the engine management system of the vehicle. In such an embodiment, the processor 210 may determine that the lighting conditions are dark if the headlamps are switched on and light if the headlamps are switched off.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Navigation (AREA)

Abstract

L'invention concerne un dispositif, tel qu'un dispositif de navigation, qui permet d'afficher la représentation d'un point de repère, et qui comporte un affichage, un processeur et une mémoire. La mémoire a mémorisé une première image d'un point de repère dans une première condition d'éclairage, par exemple de jour, et une seconde image du point de repère dans une seconde condition d'éclairage, par exemple à la lumière présente durant la nuit (telle qu'une lumière artificielle ou la lumière de la lune). Le processeur est conçu pour recevoir une entrée à partir de laquelle une indication de la condition d'éclairage actuelle peut être obtenue, pour déterminer à partir de l'entrée la condition d'éclairage actuelle et pour amener l'affichage à afficher une des première et seconde images sur la base de la condition d'éclairage actuelle déterminée. Des données tridimensionnelles de modèles graphiques peuvent être utilisées pour les images. Les données tridimensionnelles de modèles graphiques comportent des données de représentation de limite définissant les surfaces des objets du modèle et des données de carte de texture, les données de carte de texture comportant, pour au moins une des surfaces, des première et seconde cartes de texture destinées à être appliquées sur la ou les surfaces conçues de telle sorte que l'application des première et seconde cartes de texture sur la surface est mutuellement exclusive.
PCT/EP2009/068052 2009-11-30 2009-12-31 Dispositif et procédé de navigation Ceased WO2011063860A1 (fr)

Applications Claiming Priority (2)

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US26485609P 2009-11-30 2009-11-30
US61/264,856 2009-11-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011121762A1 (de) * 2011-12-21 2013-06-27 Volkswagen Aktiengesellschaft Verfahren zum Betreiben eines Navigationssystems und dazugehöriges Navigationssystem
CN113753265A (zh) * 2021-09-17 2021-12-07 北京控制工程研究所 一种低照度环境下的地外星体定点着陆方法

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EP1391833A1 (fr) * 2001-05-18 2004-02-25 Sony Computer Entertainment Inc. Dispositif d'affichage permettant d'acceder a un site web desire
DE102006010615A1 (de) * 2006-03-08 2007-09-13 Bayerische Motoren Werke Ag Verfahren zur Anzeige von Karteninformationen auf der Anzeigeeinrichtung eines Navigationssystems in einem Fahrzeug und Navigationssystem
DE102006028010A1 (de) * 2006-06-19 2007-12-20 Robert Bosch Gmbh Verfahren zur Visualisierung von geografischen Daten
DE102007030226A1 (de) * 2007-06-29 2009-01-08 Robert Bosch Gmbh Kameragestütztes Navigationssystem und Verfahren zu seinem Betrieb
WO2009106030A1 (fr) * 2008-02-29 2009-09-03 Navigon Ag Procédé d'utilisation d'un dispositif de navigation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391833A1 (fr) * 2001-05-18 2004-02-25 Sony Computer Entertainment Inc. Dispositif d'affichage permettant d'acceder a un site web desire
DE102006010615A1 (de) * 2006-03-08 2007-09-13 Bayerische Motoren Werke Ag Verfahren zur Anzeige von Karteninformationen auf der Anzeigeeinrichtung eines Navigationssystems in einem Fahrzeug und Navigationssystem
DE102006028010A1 (de) * 2006-06-19 2007-12-20 Robert Bosch Gmbh Verfahren zur Visualisierung von geografischen Daten
DE102007030226A1 (de) * 2007-06-29 2009-01-08 Robert Bosch Gmbh Kameragestütztes Navigationssystem und Verfahren zu seinem Betrieb
WO2009106030A1 (fr) * 2008-02-29 2009-09-03 Navigon Ag Procédé d'utilisation d'un dispositif de navigation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011121762A1 (de) * 2011-12-21 2013-06-27 Volkswagen Aktiengesellschaft Verfahren zum Betreiben eines Navigationssystems und dazugehöriges Navigationssystem
CN113753265A (zh) * 2021-09-17 2021-12-07 北京控制工程研究所 一种低照度环境下的地外星体定点着陆方法

Also Published As

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