CN110196063A - A kind of natural-sounding bootstrap technique and navigation terminal - Google Patents
A kind of natural-sounding bootstrap technique and navigation terminal Download PDFInfo
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- CN110196063A CN110196063A CN201810161419.3A CN201810161419A CN110196063A CN 110196063 A CN110196063 A CN 110196063A CN 201810161419 A CN201810161419 A CN 201810161419A CN 110196063 A CN110196063 A CN 110196063A
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- 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
- G01C21/3629—Guidance using speech or audio output, e.g. text-to-speech
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- 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
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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)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The present invention provides a kind of natural-sounding bootstrap technique and navigation terminal.Wherein method includes: the POI retrieved in map datum in the preset range at each crossing；Road and the connected relation for being driven out to road are driven into according to the crossing, significant POI is filtered out from the POI；And it is stored in the significant POI is associated with the connected relation in the map datum.The present invention can more brightly point out crossing of specifically transferring, to improve the accuracy and comprehensibility of navigation.
Description
Technical field
The present invention relates to vehicle mounted guidance technical field more particularly to a kind of natural-sounding bootstrap techniques and navigation terminal.
Background technique
Existing vehicle mounted guidance software usually using natural-sounding guidance (Natural Sound Guide, NVG) function come to
User broadcasts navigation information, such as is usually all during the navigation process " left-hand rotation of 100 meters of front " to the casting content at crossing, " preceding
200 meters of side right-hand rotation " etc..However, many users, often without concrete concept, are difficult to distinguish 100 meters, 200 for distance in reality
Specifically how far rice, therefore easily miss the crossing of turning.
Summary of the invention
The present invention provides a kind of natural-sounding bootstrap technique and navigation terminal, to improve to route pilot point voice broadcast
Accuracy, to allow users to more accurately to judge the opportunity turned at crossing.
One embodiment of the invention provides a kind of map datum Compilation Method, including:
Retrieve the POI in map datum in the preset range at each crossing；
The preset range is divided into multiple regions POI；
Road and the connected relation for being driven out to road are driven into according to the crossing, significant POI is filtered out from the POI；With
And
It is stored in the significant POI is associated with the connected relation in the map datum.
Another embodiment of the present invention provides a kind of natural-sounding bootstrap technique, including:
Road and the connected relation for being driven out to road are driven into each crossing of the navigation terminal identification on programme path；
Corresponding mark is searched from the map datum obtained by above-mentioned map datum Compilation Method according to the connected relation
Will POI；
Language guidance is carried out according to the significant POI.
Further embodiment of this invention provides a kind of map datum compiler server, including:
Retrieval module, for retrieving the POI in map datum in the preset range at each crossing；
Screening module, for driving into road and the connected relation for being driven out to road according to the crossing, from high priority
Significant POI is filtered out in the POI in the region POI；And
Relating module, for being stored in the significant POI is associated with the connected relation in the map datum.
Yet another embodiment of the invention provides a kind of navigation terminal, including:
Identification module, be located at each crossing on programme path for identification drives into road and the connected relation for being driven out to road；
Searching module, for according to the connected relation from the map datum compiler server as described in claim 6 or 7
Corresponding significant POI is searched in obtained map datum；And
Guiding module, for carrying out language guidance according to the significant POI.
The present invention is by being that each crossing increases significant POI when compiling map datum, and according to significant POI shape
Navigation guide is carried out to user at natural-sounding, therefore can more brightly point out crossing of specifically transferring, to improve navigation
Accuracy and comprehensibility.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart of map datum Compilation Method embodiment of the present invention；
Fig. 2 is the structural schematic diagram of map datum compiler server embodiment of the present invention；
Fig. 3 is the flow chart of natural-sounding bootstrap technique embodiment of the present invention；
Fig. 4 is the structural schematic diagram of navigation terminal embodiment of the present invention；
Fig. 5 is the thread figure of natural-sounding bootstrap technique embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the flow chart of map datum Compilation Method embodiment of the present invention, as shown, including the following steps:
Step 110, the POI in map datum in the preset range at each crossing is retrieved.
Wherein, the crossing refers to the place that a plurality of road merges；The road of driving into refers to that the user's vehicle being navigated exists
Drive into the road passed through before crossing；The terminal position for driving into road refers to that this drives into the position of one end that road connects with crossing
It sets.POI refers to point of interest (Point of Interest), comprising: the attribute informations such as title, classification, longitude and latitude, neighbouring place,
Such as: the specified places such as gas station, McDonald, bank；The preset range can according to the size at crossing and user demand into
Mobile state adjustment.In practical applications, whole POI can both be retrieved, can also the only specified POI of retrieving portion, such as: according to
The POI beneficial to recognition effect such as type, height is retrieved.
Specifically, the longitude and latitude of each terminal position for driving into road at each crossing in the map datum can first be obtained
Value drives into road in the crossing central point at the crossing as this.In practicing, the road data in map is usually by road
Line segment composition, traverses the road line segment in road data, is to drive into road with road line segment, to drive into road and be driven out to the end that road crosses
Point longitude and latitude is above-mentioned crossing central point；Then the POI in the pericentral preset range in the crossing is retrieved.
Hereafter, road and the connected relation for being driven out to road can be driven into according to the crossing, mark is filtered out from the POI
Property POI.Specifically, it can be screened according to attribute, the height etc. of POI；Or region can also be passed through using following steps
The mode of division is screened.
Step 120, the preset range is divided into multiple regions POI.
For example, using crossing central point as reference, after being divided into left front region, left back region, right front region and the right side
Square region.Each region POI can be equilateral triangle, square etc., and side length can according to need adjustment.
Step 130, road and the connected relation for being driven out to road are driven into according to the crossing, it is specified to each region POI
Priority.
Wherein, above-mentioned priority can be needed according to user and use habit is set.For example, for from driving into road direction
It is driven out to connected relation when road is turned right, the priority orders in each region POI are as follows: after right front region is the first priority, is right
Square region is the second priority, left front region is third priority, the 4th priority of being of left back region.
Step 140, according to the sequence of the priority, mark is filtered out from the POI in the region POI with high priority
Property POI.
For example, first POI is searched in the right front region of the first priority in upper example, if only having one in the region
A POI then regard unique POI screening as significant POI；It, can be from these POI if there is multiple POI in this region
In filter out the POI nearest apart from the crossing central point as the significant POI.
In addition, being blocked if it is considered that avoiding building, then can be filtered out from these POI apart from the crossing central point
The POI not blocked recently and by building is as the significant POI.About whether that can be blocked by building, it can pass through ground
The background data and altitude information for the building for including in diagram data compare to be judged.
Similarly, if there is no POI in the right front region of the first priority, continue behind the right side of the second priority
Continue to screen in the same manner described above in square region, and so on, it is significant until being filtered out in some region POI
POI then stops the screening process, without screening to the lower region POI of hereafter priority, therefore is favorably further reduced
Computational burden, to further increase the compilation speed of map datum.
Step 150, it is stored in the significant POI is associated with the connected relation in the map datum.
For example, specifying a significant POI in the region POI of right front for the connected relation turned right；It is being directed to
The connected relation of left-hand rotation specifies a significant POI in the region POI of left front.The rest may be inferred, makes each of the crossing
A significant POI is all corresponding with to driving into road and being driven out to the connected relation on road, and will indicate the association letter of the corresponding relationship
Breath is stored in map datum, to complete the compiling of map datum.
Herein it should be noted that if all regions POI at some crossing all do not filter out satisfactory mark
Property POI, then can be without associated storage.In addition, only drive into road correspond to it is a plurality of be driven out to road when, just carry out mark POI compile
It translates, is driven out to road if driving into road and only corresponding to one, need not also be screened.
Correspondingly, Fig. 2 is the structural schematic diagram of map datum compiler server embodiment of the present invention, the map datum
Compiler server can be realized above-mentioned map datum Compilation Method, and related content can be found in as described above.As shown, the map
Data compilation server 10 can specifically include:
The POI that retrieval module 12 retrieves in map datum in the preset range at each crossing specifically can be first by obtaining
The latitude and longitude value that module 11 obtains each terminal position for driving into road at each crossing in map datum drives into road in institute as this
The crossing central point at crossing is stated, then retrieves the POI in the preset range around the crossing central point by retrieval module 12 again.
Hereafter, tunnel and the connected relation for being driven out to road are driven into according to the crossing by screening module 14, is sieved from the POI
Select significant POI.Specifically, it can be screened according to attribute, the height etc. of POI；Or first by division module 13 by institute
It states preset range and is divided into multiple regions POI, tunnel and the company for being driven out to road are then driven into according to the crossing by sorting module 16
Clearance system is to each region POI assigned priority, later again by screening module 14 according to the sequence of the priority, from tool
Significant POI is filtered out in the POI for having the region POI of high priority.It, will be described significant by relating module 15 after completing screening
POI is associated with the connected relation to be stored in the map datum.
The present embodiment the method or server increase significant POI when compiling map datum for each crossing, with
The abstracted informations such as arrival crossing distance used in the prior art are compared, more intuitive readily discernible, to allow users to more
Accurately judge the opportunity turned at crossing.Moreover, being conducive to mitigate by compiling map datum in advance before starting navigation
The work load of terminal avoids the speed of service for tying down navigation software.
Fig. 3 is the flow chart of natural-sounding bootstrap technique embodiment of the present invention, as shown, including the following steps:
Step 210, after navigation terminal starting navigation, programme path is calculated.
Wherein, the navigation terminal can be vehicle mounted guidance terminal, be also possible to intelligent terminal.It specifically, can basis
Target location position pass course planning algorithm that the current position location for the user's vehicle being navigated is inputted with user calculates
Programme path.Optionally, which can directly calculate the programme path；Or after can also being calculated by navigation Service
It is sent to the navigation terminal.
Step 220, identify each crossing on programme path drives into road and the connected relation for being driven out to road.
Wherein, the connected relation refers to that user's vehicle enters crossing and formed from being driven out to when crossing is left on road from driving into road
Left-hand rotation, right-hand rotation, straight trip etc. relationship.Since after generating programme path, driving direction of user's vehicle at crossing is true
Fixed, therefore, the connected relation mentioned in this step refers to that the road of driving into of the recommendation on programme path is driven out to road with what is recommended
Between connected relation, all possible connected relation for driving into road and being driven out to road without referring to the crossing.
Step 230, it is searched from the map datum obtained by above-mentioned map datum Compilation Method according to the connected relation
Corresponding significant POI.
Specifically, in above method embodiment for high priority the region POI filtered out significant POI and with even
Clearance system is associated to be stored in map datum, therefore, can find corresponding mark by connected relation in this step
Will POI.
Step 240, language guidance is carried out according to the significant POI.
Specifically, for the crossing being located on programme path, pilot point first can be made according to the significant POI；So
It is afterwards that the pilot point generates guidance sound, such as the type institute to significant POI according to the attribute information of the significant POI
Corresponding sound string is spliced, to form the guidance sound；When meeting the casting opportunity of the pilot point, institute is played
Guidance sound is stated, for example, the guidance sound played is " turning right after passing through gas station in front ", " front crossing at McDonald is left
Turn " etc., to guide user at upcoming crossing, how this is driven.
Fig. 4 is the structural schematic diagram of navigation terminal embodiment of the present invention, to realize above-mentioned natural-sounding guidance side
Method, particular content can be found in as described above.As shown, the navigation terminal 20 includes:
After navigation terminal 20, which starts, to navigate, computing module 21 calculates programme path；The identification of identification module 23 is located at planning
Road and the connected relation for being driven out to road are driven into each crossing on route；Searching module 24 is according to the connected relation from by above-mentioned
Corresponding significant POI is searched in the map datum that map datum compiler server obtains；Guiding module 22 is according to the mark
Property POI carry out language guidance.It should be noted that if programme path is sent out after being generated by navigation server (not shown)
Navigation terminal 20 is given, then can be removed above-mentioned computing module 21 from navigation terminal 20.
Specifically, the production unit 22B in guiding module 22 makes pilot point according to the significant POI；Generation unit
22A is that the pilot point generates guidance sound according to the attribute information of the significant POI；When the casting for meeting the pilot point
When opportunity, the guidance sound is played by broadcast unit 22C.
The method or navigation terminal through this embodiment, by forming nature language according to the significant POI of corresponding intersection
Sound carries out navigation guide to user, can more brightly point out crossing of specifically transferring, thus improve the accuracy of navigation with can
It is illustrative.
In addition, in practical applications, natural-sounding bootstrap technique described in the present embodiment is also segmented into different threads simultaneously
Row executes, as shown in figure 5, specific each step content has marked in the figure, details are not described herein again.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of map datum Compilation Method characterized by comprising
Retrieve the POI in map datum in the preset range at each crossing；
Road and the connected relation for being driven out to road are driven into according to the crossing, significant POI is filtered out from the POI；And
It is stored in the significant POI is associated with the connected relation in the map datum.
2. the method according to claim 1, wherein the POI retrieved in the preset range includes:
The latitude and longitude value for obtaining each terminal position for driving into road at each crossing in the map datum drives into road as this and exists
The crossing central point at the crossing；
Retrieve the POI in the pericentral preset range in the crossing.
3. according to the method described in claim 2, it is characterized in that, filtering out the significant POI and including:
The preset range is divided into multiple regions POI；
Road and the connected relation for being driven out to road are driven into according to the crossing, to each region POI assigned priority；And
Filtered out from multiple POI in the region POI with high priority apart from the crossing central point recently and not by
The POI that building blocks is as the significant POI.
4. a kind of natural-sounding bootstrap technique characterized by comprising
Road and the connected relation for being driven out to road are driven into each crossing of the navigation terminal identification on programme path；
The map obtained according to connected relation map datum Compilation Method described according to claim 1~any one of 3
Corresponding significant POI is searched in data；
Language guidance is carried out according to the significant POI.
5. according to the method described in claim 4, it is characterized in that, including: according to the significant POI progress language guidance
Pilot point is made according to the significant POI；
It is that the pilot point generates guidance sound according to the attribute information of the significant POI；And
When meeting the casting opportunity of the pilot point, the guidance sound is played.
6. a kind of map datum compiler server characterized by comprising
Retrieval module, for retrieving the POI in map datum in the preset range at each crossing；
Screening module filters out mark for driving into road and the connected relation for being driven out to road according to the crossing from the POI
Property POI；And
Relating module, for being stored in the significant POI is associated with the connected relation in the map datum.
7. server according to claim 6, which is characterized in that further include:
Division module, for the preset range to be divided into multiple regions POI；
Sorting module, it is specified to each region POI for driving into road and the position relation for being driven out to road according to the crossing
Priority；And
Module is obtained, the latitude and longitude value for obtaining each terminal position for driving into road at each crossing in the map datum is made
Road is driven into the crossing central point at the crossing for this；
The screening module from multiple POI in the region POI with high priority for filtering out apart from the crossing
Central point is recently and the POI that is not blocked by building is as the significant POI.
8. a kind of navigation terminal characterized by comprising
Identification module, be located at each crossing on programme path for identification drives into road and the connected relation for being driven out to road；
Searching module, for being obtained according to the connected relation from the map datum compiler server as described in claim 6 or 7
Map datum in search corresponding significant POI；And
Guiding module, for carrying out language guidance according to the significant POI.
9. navigation terminal according to claim 8, which is characterized in that the guiding module includes:
Production unit, for making pilot point according to the significant POI；
Generation unit, for being that the pilot point generates guidance sound according to the attribute information of the significant POI；And
Broadcast unit, for playing the guidance sound when meeting the casting opportunity of the pilot point.
10. navigation terminal according to claim 8 or claim 9, which is characterized in that further include: computing module, for being led when starting
After boat, the programme path is calculated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810161419.3A CN110196063A (en) | 2018-02-27 | 2018-02-27 | A kind of natural-sounding bootstrap technique and navigation terminal |
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| CN201810161419.3A CN110196063A (en) | 2018-02-27 | 2018-02-27 | A kind of natural-sounding bootstrap technique and navigation terminal |
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