EP2208024A1 - Procédé d'utilisation d'un système de navigation - Google Patents

Procédé d'utilisation d'un système de navigation

Info

Publication number
EP2208024A1
EP2208024A1 EP08847125A EP08847125A EP2208024A1 EP 2208024 A1 EP2208024 A1 EP 2208024A1 EP 08847125 A EP08847125 A EP 08847125A EP 08847125 A EP08847125 A EP 08847125A EP 2208024 A1 EP2208024 A1 EP 2208024A1
Authority
EP
European Patent Office
Prior art keywords
route
output
configuration file
stored
interpretation module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08847125A
Other languages
German (de)
English (en)
Inventor
Thorsten W. Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Garmin Wurzburg GmbH
Original Assignee
Navigon AG
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 Navigon AG filed Critical Navigon AG
Publication of EP2208024A1 publication Critical patent/EP2208024A1/fr
Withdrawn legal-status Critical Current

Links

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
    • G01C21/3626—Details of the output of route guidance instructions
    • G01C21/3641—Personalized guidance, e.g. limited guidance on previously travelled routes

Definitions

  • the invention relates to a method for operating a navigation system according to the preamble of claim 1.
  • Known navigation systems which are used, for example, as mobile navigation devices for motor vehicles, serve at their core according to the calculation of movement routes from a starting point to a destination point. Based on the calculated route, the known navigation systems then include a route guidance component in which maneuvering instructions are calculated for the user.
  • the maneuvering instructions serve to give the user instructions to follow from the current position of the route. After calculation of the maneuvering instruction, this is issued optically and / or acoustically.
  • the maneuvering instruction can thus be displayed, for example, on a display or output with a loudspeaker for the user in a specific language.
  • Known navigation systems are usually present as machine-readable software source code and are executed on suitable devices, for example microcomputers with a central processor unit. All presettings and configurations, which are necessary in particular for the calculation and output of the maneuvering instructions, are integrated into the machine-readable source code. This integration of the default data for the calculation or output of the maneuvering instructions into the machine-readable source code leads to considerable disadvantages.
  • the source code in each case depends on the software platform used in each case, so that when changing the software platform used in each case the entire source code must be reprogrammed.
  • the source code differs fundamentally, if it has been developed for example for Windows, Java or the Symbian platform. If errors in the software module for calculating and outputting the maneuvering instruction are detected or further developments are implemented, therefore, due to the integration into the software source code, different source codes for versions for the different software platforms must be revised and updated.
  • maneuver instruction routines integrated with the software source code can take a significant amount of programming.
  • the source code for the definition of the calculation or output of the maneuvering instructions can comprise several tens of thousands of lines, which must be completely exchanged during an update. If the update is carried out by data transfer, for example via the Internet, correspondingly large amounts of data, for example several hundred kilobytes or a few megabytes, must be transmitted.
  • Furthermore disadvantageous in the integration of the boundary conditions for the calculation or output of the maneuvering Instructions are that custom changes are hardly possible.
  • the method according to the invention is based on the fact that a configuration file is stored in the navigation system, which preferably contains all the configuration presetting data which are required for the calculation and / or output of the maneuvering instruction. Before and / or during the calculation or output of a maneuvering instruction, these default settings must be loaded and interpreted.
  • an interpretation module is present in the navigation system, which reads out and interprets the stored preset data from the configuration file. So no machine-readable source code must be generated, as it can be processed directly by a microprocessor, for example. As a result, this means that the presetting data required for the calculation and / or output of the maneuvering is no longer integrated into the machine-readable source code of the navigation system, but is stored as data in a separate configuration file. Only before or during the calculation or output of the maneuvering instruction are these presetting data read out and interpreted by the interpretation module.
  • the preset data stored in the configuration file can be analyzed much easier, so that the troubleshooting and further development of the software is simplified.
  • the storage of the default data in the inventive The configuration file must be independent of the software platform used. This means that when using the software on another software platform, only the interpretation module needs to be replaced, whereas the default data can remain unchanged.
  • Another advantage is that the default data can be compressed much more by the separate storage in the configuration file. This significantly reduces the required data transfer when updating the preset data.
  • the interpretation module When the interpretation module reads out the default data from the configuration file, it stores it in a memory in a memory-optimized format and, during the calculation and / or output of the maneuver instruction, for the preset data stored in the memory, with particular regard to rapid processing of time-critical processes accesses and interprets them.
  • the interpretation of the preset data stored in the memory thus always takes place on demand, which saves computing power.
  • the form in which the configuring default data for the calculation and / or output of the maneuvering instruction are stored in the configuration file is fundamentally arbitrary. Particularly advantageous is the storage in alphanumeric text form, as this text form can be read and interpreted by people directly. This is particularly advantageous when troubleshooting and developing navigation software.
  • one configuration file is sufficient for the simple execution of the navigation system when calculating or outputting the maneuvering instruction.
  • a plurality of configuration files are stored in the navigation system, each containing different preset data.
  • the navigation system can then either automatically or user-defined select one of the configuration files and have it read out and interpreted by the interpretation module. As a result, it is thus possible to influence the behavior of the navigation system in the calculation or output of the maneuvering instructions in a simple manner by changing the configuration file used in each case.
  • Another possibility for using parallel stored configuration files is that the different configuration files are each assigned to different usage areas. As a result, it can be achieved that the maneuvering instructions in different areas of use, for example in different states, are each different and thus adapted to the country-specific conditions.
  • configuration files for different usage times can also be stored in the navigation system. For example, it is conceivable that the behavior in the calculation or output of the Maneuvering instructions to adapt to the requirement profile of day and night. Depending on the respective usage time, the navigation system can then automatically load the respectively assigned preset data from the different configuration files and have it interpreted in the interpretation module.
  • the configuration file is read at least once during startup of the navigation system, and the preset data stored therein are read out and interpreted by the interpretation module.
  • the default settings generated by interpretation are then stored.
  • the configuration file is read out again during the runtime of the navigation system and henceforth used in the interpretation module as a new sequence control.
  • the default data newly generated by interpretation then replace the previously used default data, for example by overwriting the corresponding memory areas.
  • an update of the navigation software containing changes in the behavior of the maneuvering instructions can thus be performed without restarting the entire navigation system.
  • the reloading of different alternatives of configuration files for example for different user groups or different user profiles or different usage areas or different usage times, can thus be performed in each case without restarting the navigation system.
  • the stored default data can be quite substantial. In order to simplify the handling and maintenance of this data, it is therefore advantageous if the default data is distributed over several configuration files.
  • the distribution of the default data to several configuration part files also has advantages in the Look for software updates, as changes can only relate to individual configuration sub-files, so that only the respective configuration sub-files must be replaced.
  • Which type of preset data is stored in the configuration files is basically arbitrary. According to a preferred variant of the method, it is provided that the entire decision logic for determining the time sequence of the output of a maneuver instruction sequence is controlled by the preset data. As a result, the entire behavior of the navigation system in the calculation or output of the maneuver instruction is controlled by the default data from the configuration file.
  • the decision logic for processing the calculation or output of the maneuver instruction sequence can be done by tabular flowcharts. These flowcharts preferably contain tabular text information that maps a flowchart in a deterministic manner. These flowcharts stored in tabular form can also be easily interpreted and graphically displayed by suitable software modules for error analysis.
  • To determine a maneuvering instruction basically three steps can be performed. The first step is a flowchart for
  • a rough classification of an intersection or a road course evaluated contains the rules and decisions to be taken and the attributes to compare.
  • a decision table is then evaluated which indicates which language-dependent announcements are to be output acoustically under which conditions. Of course, this decision table is language-dependent, so that a separate decision table has to be created for each existing language.
  • a distance table is evaluated, which depends on the rough classification and the vehicle type or on the currently permitted speed or depending on the vehicle speed. of the current speed indicates the distance to which the announcement is spoken.
  • the configuration file should comprise, in addition to a tabularly stored flowchart, a decision-making scheme stored in tabular form and / or a distance-saving scheme stored in tabular form.
  • Fig. 1 is a graph showing a flow chart for rough classification of a road course
  • Fig. 2 is a tabular flowchart corresponding to the flowchart of Fig. 1;
  • FIG. 3 shows a table-like storable decision scheme for selecting maneuver instruction sequences
  • Fig. 4 is a table storable distance scheme.
  • Fig. 1 shows a flowcharts diagram 01 ("FlowChart") as required to compute a maneuvering instruction
  • FlowChart a flowcharts diagram 01
  • the rough classification gives the result "IgnoreJunction”.
  • no maneuver instruction is generated for the road segment being analyzed. It is e.g. common in a transition from one road element to a subsequent road element along the route, when there is no way to drive on another road, not to issue a maneuver instruction.
  • the checks according to the flow diagram 02 correspond to analysis modules in the route guidance unit, which take into account the currently examined route segments and potentially other surrounding other segments and deliver a defined result which corresponds to a specific truth value. Depending on the respective truth value, the flowchart can be continued. Thus, for each check in the flowchart, a postcondition is defined, which check is to be performed if the check is successful (yes) or not successful (no). In addition, it is also possible that only one Nachbedingung is specified. For example, if this postcondition is "Destination," the route guidance is at the end, and there is no successor.
  • a coarse classification "destination” can be achieved by running in the FlowChart over the nodes K1, K2, K3, K4, K7, K8, K9 and K1, according to the graphical representation of the flowchart 01 (FIG. FIG. 1), the decision logic is stored in tabular form in flowchart 02.
  • decision tables 03 may be provided for different language versions. It is also conceivable that the decisions about the type of announcement are held separately from the text to be issued in the respective language.
  • the announcement which by the decision table 03 can also contain parts to be replaced (tags). These are, for example, the current street name, the street name, which is reached after the announcement, the route number, such as "on the A l", signpost information, for example, "towards the city center”, distance information, such as the distance to the announcement, and directions, such as the direction that must be taken in the announcement.
  • the decision table 03 shown in FIG. 3 reflects only by way of example the possible content of a decision table.
  • the tags which are in brackets, are still to be completed.
  • the rough classification PriorityManoeuver shows in which distance the priority road is left. If the vehicle is more than a pre-configurable distance, e.g. 700 meters from the action point, the announcement will be used under "far” and will be spoken when reaching the 700 meters mark. The "distance” tag will be filled with the determined distance and the "direction” tag will be filled in, for example with “turn right”. This would result in the announcement "turn right at 700 meters and leave the main road”.
  • a distance table 04 is shown by way of example.
  • the distance in which an announcement is to be spoken is defined for all rough classifications.
  • Each rough classification has different distances. For example, there may be distances "very far”, “far”, “near” and “very close”. If the rough classification indicates that you are on a fast road, so the distances for this are correspondingly greater selectable than in a rough classification of a local street.
  • the decision table 04 is analyzed and the maneuver output is made when the positioning unit of the navigation device indicates that the distance configured in the distance table exists from the current position to the identified maneuver.
  • the method according to the invention allows the extension of known navigation systems by the following options:
  • Selectable route guidance strategy When configuring his navigation system, the user can be offered the selection according to which motives maneuvering instructions are to be created. So the number of messages per maneuver can be reduced.
  • the implementation of this option is very simple by using the method according to the invention by holding a separate configuration file for each of the given options, which must be used accordingly by the route guidance unit. It is also conceivable to change the strategy during a current route guidance by analyzing the part of the route that has not yet traveled through the newly configured route guidance unit. 2. Updating ability: Also, by the method according to the invention updating or patching the present routing strategy can be easily performed. For this purpose, only the configuration files must be replaced, which is conceivable, for example, by a download via the navigation device. Prerequisite is the connection to a server, eg over the Internet or wirelessly via WLAN or UMTS.
  • the inventive method facilitates the use of different languages. The addition of additional languages is easily possible with the inventive method and requires no replacement of the complete navigation software. Only a list of the currently available language of the navigation software must be known so that a new language can be offered accordingly.

Landscapes

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

Abstract

L'invention concerne un procédé d'utilisation d'un système de navigation comportant les étapes suivantes: a) calcul d'un itinéraire d'un point de départ à une destination, l'itinéraire étant composé d'une suite de tronçons et de noeuds situés entre les tronçons, sélectionnée au moyen d'un procédé de calcul d'itinéraire à partir d'une base de données dans laquelle une zone géographique est décrite par un réseau de noeuds et de tronçons; b) calcul d'au moins une instruction de manoeuvre contenant des instructions pour l'utilisateur afin de suivre l'itinéraire à partir de la position courante; et c) émission optique et/ou acoustique de l'instruction de manoeuvre sur un dispositif d'émission. Avant et/ou pendant le calcul et/ou l'émission de l'instruction de manoeuvre, un fichier de configuration est lu et interprété par un module d'interprétation, des données de préréglage de configuration étant contenues dans le fichier de configuration pour le calcul et/ou l'émission de l'instruction de manoeuvre.
EP08847125A 2007-11-06 2008-10-09 Procédé d'utilisation d'un système de navigation Withdrawn EP2208024A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007053213A DE102007053213A1 (de) 2007-11-06 2007-11-06 Verfahren zum Betrieb eines Navigationssystems
PCT/DE2008/001626 WO2009059575A1 (fr) 2007-11-06 2008-10-09 Procédé d'utilisation d'un système de navigation

Publications (1)

Publication Number Publication Date
EP2208024A1 true EP2208024A1 (fr) 2010-07-21

Family

ID=40386508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08847125A Withdrawn EP2208024A1 (fr) 2007-11-06 2008-10-09 Procédé d'utilisation d'un système de navigation

Country Status (4)

Country Link
US (1) US8457884B2 (fr)
EP (1) EP2208024A1 (fr)
DE (1) DE102007053213A1 (fr)
WO (1) WO2009059575A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177685A (en) * 1990-08-09 1993-01-05 Massachusetts Institute Of Technology Automobile navigation system using real time spoken driving instructions
US6199013B1 (en) 1997-07-15 2001-03-06 Navigation Technologies Corp. Maneuver generation program and method
US6249720B1 (en) * 1997-07-22 2001-06-19 Kabushikikaisha Equos Research Device mounted in vehicle
US6212474B1 (en) 1998-11-19 2001-04-03 Navigation Technologies Corporation System and method for providing route guidance with a navigation application program
US6385542B1 (en) * 2000-10-18 2002-05-07 Magellan Dis, Inc. Multiple configurations for a vehicle navigation system
DE10311336A1 (de) * 2003-03-14 2004-09-23 Siemens Ag Elektronisches System, insbesondere ein elektronisches Informations- und/oder Kommunikationssystem eines Kraftfahrzeuges
DE102007036627A1 (de) * 2007-08-02 2009-02-05 Navigon Ag Verfahren zum Betrieb eines Navigationssystems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009059575A1 *

Also Published As

Publication number Publication date
US20110015855A1 (en) 2011-01-20
WO2009059575A1 (fr) 2009-05-14
DE102007053213A1 (de) 2009-05-07
US8457884B2 (en) 2013-06-04

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