EP3555570A2 - Procédé permettant de fournir une description textuelle d'au moins un itinéraire pour un trajet d'un véhicule automobile et dispositif de commande et véhicule automobile - Google Patents

Procédé permettant de fournir une description textuelle d'au moins un itinéraire pour un trajet d'un véhicule automobile et dispositif de commande et véhicule automobile

Info

Publication number
EP3555570A2
EP3555570A2 EP17803892.3A EP17803892A EP3555570A2 EP 3555570 A2 EP3555570 A2 EP 3555570A2 EP 17803892 A EP17803892 A EP 17803892A EP 3555570 A2 EP3555570 A2 EP 3555570A2
Authority
EP
European Patent Office
Prior art keywords
route
text
routes
output
motor vehicle
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Withdrawn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
EP17803892.3A
Other languages
German (de)
English (en)
Inventor
Niels LOHMANN
Volker REMUSS
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP3555570A2 publication Critical patent/EP3555570A2/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Withdrawn legal-status Critical Current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
    • 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
    • G01C21/3644—Landmark guidance, e.g. using POIs or conspicuous other objects

Definitions

  • the invention relates to a method for providing a text-based description of at least one route for a drive of a motor vehicle. Such a description may be a written, natural-language text or a voice prompt.
  • the invention also includes a control device for carrying out the method.
  • the invention also includes a motor vehicle with such a control device.
  • a driver wishes to make a route planning while driving with a motor vehicle, then it can be provided that he inputs the desired destination by voice input into a speech dialogue system or by means of a keyboard. If a route to the destination has then been calculated by the navigation system, the driver can then be given navigation instructions by voice output. However, there is a gap between the input of navigation destinations (by keyboard or voice) and the subsequent linguistic route guidance announcements.
  • the planned route or a selection of several possible routes is only displayed graphically in a map view, but not described or announced summarized as text.
  • differences between different alternative routes such as the type of route (fastest route or shortest route or most economical route), are only plotted on a map. Route differences that arise through explicit (for example, by introducing an intermediate destination) or implicit rescheduling (for example, to avoid a traffic jam) are not communicated at all. It is only announced that there has been a change in the route guidance.
  • map services on the Internet for example Google Maps ®, which provide a text-based description of a route determined for a journey, but which is usually limited to the length and duration of the route and is only available as a simple list of the roads to be driven.
  • a navigation system for a vehicle which can automatically calculate a route to a route to thereby lead a vehicle to a point of interest.
  • the object of the invention is to provide a natural-language, text-based description for a navigation assistant for at least one route for a journey of a motor vehicle.
  • the invention provides a method for providing a text-based description or representation of at least one route for a drive of a motor vehicle.
  • the method may be performed by a control device. It will be to each route in a respective, the route comprehensive predetermined Ambient area Route characteristics of the route determined. Such a surrounding area may be defined, for example, as a corrector of predetermined width defined or provided on either side of the route. Based on a predetermined selection criterion, at least some of the determined route features are then selected for the description. Thus, the entirety of the route features available in the surrounding area is first determined and then a selection is made therefrom, wherein it can be determined by the selection criterion which of the route characteristics are to be used for the description.
  • a route feature may be, for example, a road, another route feature, for example, a place (city or village) that is next to the road. It then makes no sense to specify in the description: "1. Road, 2nd place ".
  • the output hierarchy then specifies that the place must be named together with the street.
  • the output list then serves as the basis for generating the text-based description.
  • a speech text is generated as the description of the at least one route based on predetermined speech generation rules from the output list.
  • This speech text is then output to a user.
  • the voice text is then structured to describe each route based on the selection of route features that have been brought into an output order and output hierarchy.
  • the speech generation rules it is ensured that each route feature is described according to its properties, that is, a road is indicated for roads, and a journey is described past the landmark for landmarks (for example, places).
  • the speech generation rules can be designed in such a way that results in a natural-language speech text, so a text with complete, grammatically correct sentences.
  • a natural-language language text is thus a text, just as a person would speak in an oral description.
  • the advantage of the invention is that the at least one route can be output to the user in the form of a natural-language speech text, ie in one Form as another person would describe the route to the user.
  • the invention also includes refinements, resulting in additional benefits.
  • a route feature one of the following can be determined in each case: a road on which the route leads along, and / or a landmark located on the road.
  • a landmark is a place where the route passes (eg, a town or village or a building or landmark), or a user-specified POI known to the user; a maneuver point of the route, at which a road change and / or a road junction must be considered.
  • a road thus represents a route feature along which several further route features, namely landmarks, can be arranged. This is important for the output hierarchy. It can therefore be called a street and subordinated in the output hierarchy then be called along the road at least one landmark.
  • the selection criterion is configured in a parameterizable manner and a degree of detail and / or a feature type for the selection is determined as a function of a user input of the user.
  • the level of detail determines the total resulting number of selected route features, which number may be relative to the length of the route.
  • a feature type indicates which route characteristics are selected. For example, a feature type "Road" may specify that a road may be selected as a route feature, that is, the respective road is named in the language text.
  • “Locations” may specify that the user is to be given passages in the language text where they will pass .
  • a "personally known landmarks” feature type may specify that based on an individual user profile of the user, those landmarks that are personally known to the user are determined or selected Such a personal landmark may be, for example, a destination used in the past and / or Address from an address collection and / or a POI (for example, restaurant or museum) mentioned and / or evaluated by the user in a social network at least one route a personal reference for the user. It may be provided to specify more than one feature type for the selection.
  • the selection of the route features in particular to determine a distance to the destination and / or an estimated time of arrival at the destination to the route features is and the selection criterion provides that the selected route features are arranged locally and / or temporally evenly along the respective route.
  • uniformly is meant that the local and / or temporal distance between the route features is within a predetermined tolerance interval, for example, it may be provided to call route characteristics every 5 to 15 minutes along the route ) can be set depending on a total length of the route.
  • the sort criterion determines with respect to the output order that a time sequence of the encounter, as will result from the travel along the respective route, corresponds to the output order.
  • said output hierarchy may hierarchically subordinate landmarks (eg, a city or a village or a POI) to a street closest to the landmark of the route, thus forcing a common denomination. This avoids that the landmark is called before or after a road, but instead is noted or mentioned in the description that the landmark is passed while driving on the nearest road.
  • the text generation device can generate a written speech text for display on a display device or a spoken speech text for a voice announcement.
  • the voice announcement has the advantage that a complete linguistic operation of a navigation assistance system is made possible by the development of the method, since now in a voice dialogue, the driver can call the destination, then the determined route and possibly a determined alternative route gets described by voice announcement and then the user can select or confirm a route by voice. Then navigation instructions for this selected route can continue to be output by voice announcement.
  • the operation of a navigation assistance system is completely possible by voice and thus no turning away from the traffic is necessary. The aforementioned "gap" is thus closed.
  • a development provides that the text generation device processes the route characteristics entered in the output list one after the other and thereby provide the speech generation rules with prefabricated text fragments with predetermined text gaps and the current route feature from the output list is inserted into the respective text gap of the current text fragment ,
  • a text fragment may be provided as follows: "Drive along XXX", where XXX may be a text gap for the name of the road, which can then be taken from the output list in the form of the current route feature.
  • a text fragment for a ride past a landmark may be: "Drive past YYY.”
  • YYY is a text hole for the landmark name, such as a toponym, depending on the output hierarchy and / or
  • a text fragment for an output hierarchy may summarize two route characteristics, namely, a road and a landmark passed along the road: "Go to XXX YYY over! "
  • a graph is a mathematical construct in which edges of the graph are connected by nodes of the graph. Each edge represents a new section of the route, each node a connection of two sections.
  • Such route sections which are common to both routes, are each represented in the graph as a common sequence (ie as a common edge or edge sequence) of the graph.
  • the result is a pair of route sections, one route section per route.
  • pairs of route sections each of which belongs to only one of the two routes, are inserted or arranged between a splitting node and a merging node of the graph.
  • a route can therefore have at least one common sequence, which can then be split at a splitting node into two different courses of edges (pairs of route sections) and can merge again at a merger node to form a common sequence.
  • the two routes can be described together by only a single language text for common Sequences is generated and only the differences are described separately.
  • a route with a common sequence is not mandatory: in the absence of a sequence, the cleavage node corresponds to the start point and the union node corresponds to the destination point of the route.
  • a common speech text section of the speech text for both routes is thus generated for generating the speech text for a sequence of the graph and provided for a cleavage node a difference note and then provided for split route sections a respective individual speech text section in the speech text.
  • a difference hint may say: "Route A provides for driving on XXX, while Route B here is for turning.”
  • Such a comparison of routes is particularly advantageous before the start of a journey or navigation assistance, namely for a selection of one of the routes for the subsequent navigation assistance.
  • the example described at the outset can be used, in which a driver indicates a navigation destination by voice input and then the calculated routes (e.g., fastest route, shortest route, most economical route) are presented or output as speech text.
  • routes e.g., fastest route, shortest route, most economical route
  • Another important field of application for this development of the method results after a calculation of a new route due to a rescheduling during a journey or during a navigation assistance. For example, due to congestion, the route can now be rescheduled so that an alternative route results as a new route.
  • the driver can then be described while driving through the speech text, where the difference between the previously planned route and the neuro route. This can be recognized by the resulting split node.
  • a control device for a motor vehicle has a processor device which is set up to carry out an embodiment of the method according to the invention.
  • the processor device can for this purpose have a microcontroller or a microprocessor.
  • the method steps may be configured as a program code of the processor device which, when executed by the processor device, carries out the embodiment of the method according to the invention.
  • the program code may be stored in a data memory of the processor device.
  • the invention also includes a motor vehicle which has an embodiment of the control device according to the invention.
  • the motor vehicle according to the invention can be designed as a motor vehicle, in particular as a passenger car or truck.
  • Fig. 1 is a schematic representation of an embodiment of the invention
  • Fig. 2 is a Flußschaudiagramm an embodiment of the invention
  • Fig. 3 is a sketch illustrating a graph for comparing two
  • Fig. 4 is a sketch illustrating a Graphredulement
  • Fig. 5 is a Flußschaudiagramm another embodiment of the method according to the invention.
  • the exemplary embodiment explained below is a preferred embodiment of the invention.
  • the described components of the embodiment each represent individual features of the invention that are to be considered independently of one another, which also each independently further develop the invention and thus also individually or in a different combination than the one shown as part of the invention.
  • the described embodiment can also be supplemented by further features of the invention already described.
  • Fig. 1 shows a motor vehicle 10, which may be a motor vehicle, especially a passenger car or truck.
  • a navigation device 1 1 can generate route data 12 which is suitable for a journey of the Motor vehicle 10 can describe a planned route A or more planned routes.
  • the route A is described for example by vector data or by a mathematical graph 13 with nodes and edges.
  • a control device 14 can generate from this abstract or graph-based description of the route A a text-based description 15 with a speech text 15 'which can be output to a user of the motor vehicle 10 as natural-language text.
  • the control device 14, for example, by means of an audio output device 16, for example, an audio system of the motor vehicle 10, a speech output 17 of the description 15 generate.
  • a written representation 18 can also be output on a display device 19 of the motor vehicle 10, for example a screen or a head-up display. Via a communication device 20, the written representation 18 can also be output on a mobile terminal 21, for example a smartphone of the user.
  • the communication device 20 can for example comprise a WLAN radio module (WLAN - Wireless Local Area Network) or a mobile radio module.
  • the written presentation may be output as a message of an SMS (Short Message Service).
  • the navigation device 1 1 and the control device 14 may for example be part of an infotainment system 22 of the motor vehicle 10 (infotainment system - information / entertainment system).
  • FIG. 2 illustrates how the text-based description 15 with the speech text 15 'can be generated by the control device 14 for a route A.
  • the steps described below may be e.g. be performed by a program code or a program module for a processor device of the control device 14.
  • the surroundings region 23 around the route A can be determined which route features 24 are located along the route A.
  • a route feature 24 may be a road 25 of route A or a landmark 26 that may be located adjacent to a road 25.
  • the surrounding area 23 may be defined as a corrector 27 defined by a respective strip 28 having a predetermined width 29 on the right and left of the route A, respectively.
  • From the total available route features 24 is in a step of a data selection S1 1 by means of a selection criterion 30 from the available, determined Route features 24 made a selection, so that selected route features 31 result.
  • an output list 32 is generated in a step of the sorting S12 by means of a sorting criterion 30 'from the selected route features 31, in which the route characteristics in an output order 33 and an output hierarchy are indicated 34, so that the time sequence of the entry of the selected route features 31 and the combined name, for example, a road 25 are arranged with a landmark 26 located thereon.
  • the text-based description 15 with the speech text 15 ' can be generated in a step of the speech generation S13 from the selection list 32 or on the basis of the selection list 32 by means of a text generation device 35.
  • the text generator 35 may include a natural language generation (NLG) algorithm, as is well known in the art.
  • language generation rules 36 can be provided in the text generation device 35, which provide prefabricated text fragments 37, in which text gaps 38 can be contained, which can each be filled in or replaced with the name of a route feature 24 currently to be described.
  • Fig. 3 illustrates how 2 routes A, B can be grouped together to allow a common description highlighting differences between the routes A, B.
  • a difference 41 between the course of the route A and the route B results at a splitting node 42, at which a common course of the routes A, B is completed or interrupted and different route sections 43 result for the two routes.
  • a union node 44 results.
  • the sequences 47 can be described once and a difference node 48 can be output in the description 15 at a splitting node 42, so that the reader or listener of the description 15 is signaled that now two separate or two different route sections 43 follow.
  • the reduced graph 13 ' provides for automated generation of a compact text-based description 15 with speech text 15' for two or more than two routes.
  • the selection criteria 30 may provide at least one of the following:
  • Ad 1 Selection based on minimum coverage of route distance, in order to favor roads where much time and distance are bridged, over short and supposedly unimportant road sections; Selection by road type (e.g., preferred by freeways and highways). Furthermore, the selection of roads may be aborted when an aggregate maximum coverage (e.g., 2/3 of the route distance) is reached.
  • To 2 Selection based on the size / relevance of the places; Selection by the distance to the route to distinguish passing by near-by and direct crossings.
  • Re 5 Support for the other selections to cover important maneuver points, e.g. by selecting places where a highway is changed.
  • the concrete parameters of the selection can be supported by personalization, movement history, personal preferences and search histories.
  • the selected information is now sorted by the time sequence along the route. Furthermore, places, points of interest and maneuver points (2.-5.) Can be assigned to selected streets (1.), If e.g. a place on the route (2.) is passed through a selected street (1.).
  • the result of this step is an output list of information between which there may be an output hierarchy (e.g., city-street). Therefore, it is also useful to limit the amount of information so that the description does not run the risk of becoming too detailed and too detailed for longer routes.
  • An example would be a restriction to a maximum of three mentioned roads (1) or at most two places along the route (2).
  • Natural Language Generation (NLG) - step S13 Of course, linguistic text can now be generated from the generated output list of information by putting together suitable texts for each type of information, the hierarchies and the temporal sequences. Examples of such texts are:
  • the route comparison starts from two routes with the same start and end point (see Fig. 4).
  • the segments of a route may be interpreted as a directed path between the starting and destination nodes. If both route paths are combined, a graph 13 'is created with common start and destination nodes and edges that can each be assigned to a route.
  • edge pairs as shown in Fig. 4 [u, v, 1] and [u, v, 2] (ie edges that differ only in the affiliation of the route, but not in the nodes) by a single edge [u , v, 12] replaced:
  • the reduced graph 13 now has the following properties:
  • Sequences are treated as routes and text is generated according to the route description method described above.
  • Route sections differ in splits, and sections of different routes reassemble on joins. Accordingly, texts can be inserted; for a split, for example. “Then Route 1 leads over ..., while Route 2 over " or for a join, for example "Then both routes lead via ".
  • a route description beyond one or two street names gives the user the necessary "vocabulary” for further interaction, such as “Do we also drive on the A10?", “When are we in Wolfsburg?" Furthermore, a natural language route description simplifies the dialogue, since the route description can be announced on the phone, for example.
  • a natural language route description allows a better understanding of other sources (e.g., traffic announcements on the radio, street signs, route guidance announcements) since these can be "recognized" by the previous route description.
  • sources e.g., traffic announcements on the radio, street signs, route guidance announcements
  • route difference can also be used for optimization by, for example, only searching for points of interest on the changed, newly traveled route section, instead of repeating it on the entire route.
  • (1) describes the difference of the routes in distance and duration, (2) and (4) common route sections and (3) those route sections which differ between the routes.
  • Learned knowledge about the driver can be used.
  • a user can input a destination input 49, for example by text or speech, in the navigation device 11 Description 15 can be made as a route output 50. This is then followed by the navigation assistant 51, which can generate navigation instructions by voice or text.

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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)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un procédé destiné à fournir une description textuelle (15) d'au moins un itinéraire (A) pour un trajet d'un véhicule automobile (10). Des caractéristiques d'itinéraire (24) sont déterminées par un dispositif de commande (14) dans une région environnante prédéterminée respective (23) comportant la itinéraire (A). Au moins certaines des caractéristiques d'itinéraire déterminées (24) sont sélectionnées pour la description (15) sur la base d'un critère de sélection prédéterminé (30). Les caractéristiques d'itinéraire sélectionnées (31) sont disposées dans une séquence de sortie (33) et selon une hiérarchie de sortie (34) et sont entrées dans une liste de sortie (32) sur la base d'un critère de tri prédéterminé (30') et, à l'aide d'un moyen de génération de texte (35), un texte vocal (15') est généré à partir de la liste de sortie (32) en tant que description (15) d'au moins un itinéraire (A) et est délivré à un utilisateur sur la base de règles de génération vocale prédéterminées (36).
EP17803892.3A 2016-12-16 2017-11-20 Procédé permettant de fournir une description textuelle d'au moins un itinéraire pour un trajet d'un véhicule automobile et dispositif de commande et véhicule automobile Withdrawn EP3555570A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016225241 2016-12-16
DE102017207545.7A DE102017207545A1 (de) 2016-12-16 2017-05-04 Verfahren zum Bereitstellen einer textbasierten Beschreibung zumindest einer Route für eine Fahrt eines Kraftfahrzeugs sowie Steuervorrichtung und Kraftfahrzeug
PCT/EP2017/079821 WO2018108462A2 (fr) 2016-12-16 2017-11-20 Procédé permettant de fournir une description textuelle d'au moins un itinéraire pour un trajet d'un véhicule automobile et dispositif de commande et véhicule automobile

Publications (1)

Publication Number Publication Date
EP3555570A2 true EP3555570A2 (fr) 2019-10-23

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EP17803892.3A Withdrawn EP3555570A2 (fr) 2016-12-16 2017-11-20 Procédé permettant de fournir une description textuelle d'au moins un itinéraire pour un trajet d'un véhicule automobile et dispositif de commande et véhicule automobile

Country Status (4)

Country Link
US (1) US20190301885A1 (fr)
EP (1) EP3555570A2 (fr)
DE (1) DE102017207545A1 (fr)
WO (1) WO2018108462A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11735045B2 (en) * 2019-12-04 2023-08-22 Uatc, Llc Systems and methods for computational resource allocation for autonomous vehicles
DE102021100939A1 (de) 2021-01-18 2022-07-21 Bayerische Motoren Werke Aktiengesellschaft Vergleichen von Routen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8126641B2 (en) * 2006-06-30 2012-02-28 Microsoft Corporation Route planning with contingencies
DE102010006702A1 (de) 2009-02-26 2010-09-02 Navigon Ag Verfahren und Vorrichtung zur Berechnung alternativer Routen in einem Navigationssystem
DE102009036676A1 (de) 2009-08-07 2010-05-06 Daimler Ag Navigationssystem für ein Fahrzeug und Verfahren zur Navigationsunterstützung
EP2681514B8 (fr) * 2011-03-04 2015-03-04 Mobile Devices Ingenierie Système et procédé de navigation combiné embarqué et non embarqué
US9618354B2 (en) * 2011-12-23 2017-04-11 Volkswagen Ag Navigation methods and devices using user-specific landmark types
KR102222250B1 (ko) * 2014-08-12 2021-03-04 삼성전자주식회사 참조 지점을 이용한 경로 안내 제공 방법 및 그 장치

Also Published As

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WO2018108462A2 (fr) 2018-06-21
DE102017207545A1 (de) 2018-06-21
US20190301885A1 (en) 2019-10-03
WO2018108462A3 (fr) 2018-10-18

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