CN103162709A - Navigation unit design method for prompting thumbnail of crossing next to crossing shown in enlarged drawing - Google Patents
Navigation unit design method for prompting thumbnail of crossing next to crossing shown in enlarged drawing Download PDFInfo
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- CN103162709A CN103162709A CN2013100789450A CN201310078945A CN103162709A CN 103162709 A CN103162709 A CN 103162709A CN 2013100789450 A CN2013100789450 A CN 2013100789450A CN 201310078945 A CN201310078945 A CN 201310078945A CN 103162709 A CN103162709 A CN 103162709A
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Abstract
The invention discloses a navigation unit design method for prompting a thumbnail of a crossing next to a crossing shown in an enlarged drawing. Through the navigation unit design method, a thumbnail of a crossing next to a crossing shown in an enlarged drawing can be provided. The navigation unit design method comprises the following steps of judging a distance between a vehicle and a next crossing by a crossing identification judgment module, providing a distance between the next crossing and a crossing next to the next crossing by the crossing identification judgment module, judging if the distance between the two adjacent crossings satisfies the thumbnail display moment requirement by a crossing enlarged drawing display moment control module, drawing an enlarged drawing of the crossing closest to the vehicle by a crossing enlarged drawing display module, judging a distance between the vehicle and the next crossing by the crossing identification judgment module, judging if the vehicle passes through the crossing closest to the vehicle by the crossing enlarged drawing display moment control module, and controlling the crossing enlarged drawing display module to disappear the enlarged drawing of the crossing closest to the vehicle by the crossing enlarged drawing display moment control module. The navigation unit design method realizes display, switching and disappearing of a thumbnail of a crossing next to a crossing shown in an enlarged drawing, can provide a visual prompt and does not disturb a driver.
Description
Technical field
The present invention relates to the auto-navigation system field, particularly the method for designing of enlarged drawing junction ahead prompting thumbnail in a kind of guider.
Background technology
Along with the rise of Automobile Electronic Industry, auto-navigation system begins to enter into people's sight line.Auto-navigation system is on the basis of embedded hardware, global GPS location, geographic information data, the synthesis that provides electronic chart, vehicle location, real-time voice guiding, real-time pictures guiding etc. to serve for the driver.
The crossing enlarged drawing is one of main forms of real-time pictures guide service.When the driver drives near the crossing, can on the screen of embedded hardware, demonstrate detail map and the direction information of junction ahead.In general, its displaying contents comprises following several:
● the detail map centered by the crossing
● the route that the driver should traveling
● the real time position of vehicle in map
● the real-time distance between vehicle and crossing
● the title of vehicle place road
● the title of next that is about to sail into a road
Traditional crossing enlarged drawing can provide the direction information of junction ahead more clearly for the driver.When road turning crossing was comparatively sparse forwardly, traditional crossing enlarged drawing can solve for the driver problem of " when turn, to which direction turn ".
When in succession two or more need to turn the crossing close together time, if still only use simple expanded view, because expanded view is that intersection information is done detailed amplification, must cause indication range limited, continuous crossing several to be turned can't be presented in an expanded view, be easy to cause turning over and ignore back to back next turning crossing behind first crossing; Perhaps turning over does not have timely lane change behind first crossing and can't be in problems such as next crossing turn to smoothly.Situation as shown in Figure 1, between continuous two crossings, distance only has 120 meters, and owing to being the overpass entrance herein, two crossings seem that concerning the driver situation is similar, but needs are walked the right side road, and another side that need to keep left is kept straight on.If due to crossing distance too near can not know in advance the concrete condition at these two crossings, be easy to through going to the wrong way at place, second crossing behind first crossing.
And in driving procedure, often remove to stare at the crossing enlarged drawing to see, will inevitably disperse driver's notice, in other words, when running into this situation, the driver need to divert one's attention to judge, should be how to get to, these reactions have reduced the level of security in driver's driving process undoubtedly.
If can have a kind of mode to remind the situation at two crossings, driver the place ahead this moment, not needing again the driver to stare at all the time navigation sees, the probability of taking a wrong way so will reduce greatly, improves simultaneously the safety in the driving process, also can make the driver more approve navigation software.
Summary of the invention
The objective of the invention is in order to improve the level of security in the driving process, on the basis of common enlarged drawing, enlarged drawing junction ahead prompting thumbnail is provided especially, special enlarged drawing during the crossing close together that can show clearly that continuous two needs turn, the spy provides the method for designing of enlarged drawing junction ahead prompting thumbnail in a kind of guider.
The invention provides the method for designing of enlarged drawing junction ahead prompting thumbnail in a kind of guider, it is characterized in that: the method for designing of enlarged drawing junction ahead prompting thumbnail in described guider, on the basis of common enlarged drawing, provide especially enlarged drawing junction ahead prompting thumbnail, the special enlarged drawing during the crossing close together that shows clearly that continuous two needs turn;
Enlarged drawing junction ahead prompting thumbnail, crossing identification judge module is judged the close together that there are two crossings to be turned in the place ahead, enlarged drawing control module on opportunity in crossing judges when these two crossings are not enough to be presented in same enlarged drawing, on the basis of the enlarged drawing at first crossing simultaneously on the enlarged drawing of form Overlapping display at first crossing of enlarged drawing with thumbnail with second crossing;
Allow the observer see simultaneously two width enlarged drawings, wherein take distance from the enlarged drawing at car nearest crossing as main, normal size shows; Second enlarged drawing keeps the interior content of figure constant, and size is dwindled, and background is semi-transparent, is superimposed upon the upper left corner of first expanded view; When passing through first after turning the crossing from car, first crossing enlarged drawing cancellation immediately; The thumbnail in the upper left corner amplifies gradually, until be of a size of common expanded view, and accurately shows from the car position in new expanded view and apart from the distance at turning crossing, the place ahead; If still have continuous two crossing to be turned close together this moment, can continue thumbnail to occur with same form;
Idiographic flow is as follows:
Crossing identification judge module is judged the relative distance between car and next crossing, whether satisfies expanded view by the relative distance of crossing enlarged drawing control module on opportunity judgement between car and next crossing and shows opportunity, if so, carries out next step; Otherwise continue judgement;
Identification judge module in crossing provides next crossing and the relative distance between next crossing again, by crossing enlarged drawing control module on opportunity judge next crossing and again the relative distance between next crossing whether satisfy the opportunity that thumbnail shows, if so, carry out next step; Otherwise show basic expanded view;
By crossing enlarged drawing display module, describe distance from the enlarged drawing at the nearest crossing of car, form is basic crossing enlarged drawing, its content comprises the road, travel route of vehicle location, next crossing periphery, from car from the distance between crossing to be turned;
By crossing identification judge module, judge the relative distance between vehicle and next crossing, by crossing enlarged drawing control module on opportunity, judge that vehicle whether by the crossing, if pass through, carries out next step; Otherwise continue to upgrade from car the relative position in expanded view;
By crossing enlarged drawing control module on opportunity, control crossing enlarged drawing display module, the enlarged drawing at blanking nearest crossing; Simultaneously the thumbnail dimensions at next crossing is amplified, until be amplified to basic enlarged drawing consistent size till; On this enlarged drawing content still comprise the road, travel route of vehicle location, next crossing periphery, from the distance between spacing crossing to be turned;
The module of controlling enlarged drawing is numerous, must accomplish between each module that Each performs its own functions, concerted effort coordinates guarantee to demonstrate correct enlarged drawing and junction ahead thumbnail on appropriate opportunity; And can normally switch, disappear.
This form of junction ahead thumbnail is unprecedented, and it should depend on crossing enlarged drawing function, plays again the effect of prompting directly perceived, and can not affect the information that original enlarged drawing is showed.
The demonstration of junction ahead thumbnail, switching, disappearance opportunity and method should be accomplished prompting directly perceived, can not disturb to some extent the driver again.
The hardware module that realizes enlarged drawing junction ahead prompting thumbnail in guider is as follows:
The geography information read module:
The geography information read module is the basic module of navigational system, and it is responsible for the geographic information data with vehicle-surroundings and travel route periphery, reads internal memory from external memory (as SD card, DVD CD).This module has played vital effect for the real-time that guarantees navigational system and junction ahead thumbnail function.
The GPS locating module
The GPS locating module is also the basic module of whole navigation, this module on the basis of geography information read module, the vehicle location that receiving world locational system (GPS) transmits, and with vehicle location to road.
Crossing identification judge module
Crossing identification judge module, on the basis of geography information read module and GPS module, the road at real-time judge vehicle place and the information of junction ahead.Specifically, this module can judge and provide following information:
The title of vehicle place road, road grade etc.
When the route that vehicle is set according to navigational system advances, the title of next that enters after a turning road, road grade etc.
The longitude and latitude position of junction ahead, and junction ahead and the distance between car.
The travel route of " how vehicle should advance, turn to " is provided.
Distance between continuous two crossings to be turned, the place ahead, this information is the basis of junction ahead thumbnail prompt facility.
Whether vehicle has passed through the crossing.
Crossing enlarged drawing control module on opportunity
On the basis of cartographic information read module, crossing identification judge module and crossing identification judge module, complete following functions:
According to the rank of road, and the distance between vehicle and junction ahead, determine when should show the crossing enlarged drawing on screen.
After showing the crossing enlarged drawing on screen, according to the position of vehicle, control in real time the display position of vehicle icon on screen.
When vehicle when the crossing, with the blanking from the screen of crossing enlarged drawing.
According to road grade, the situations such as the speed of a motor vehicle determine whether to need to show the junction ahead thumbnail.
When judgement switches between enlarged drawing and thumbnail according to the vehicle real time position.
Crossing enlarged drawing display module
On the basis of geography information read module, crossing enlarged drawing control module on opportunity, complete the demonstration of crossing enlarged drawing on screen.Specifically, following steps are arranged:
On the basis of geography information read module, show the detailed electronic chart of junction ahead periphery on screen.
On the basis of crossing identification judge module, show the travel route of " how vehicle should advance, turn to " on screen.
If identifying the place ahead, crossing identification judge module have two continuous crossing distances to satisfy the display condition of enlarged drawing thumbnail, crossing enlarged drawing display module can be depicted as thumbnail with the details of second crossing periphery, is superimposed upon the upper left corner of original enlarged drawing.
In order to demonstrate the enlarged drawing at two crossings to be turned, the place ahead in limited zone, and mainly show from the enlarged drawing from the nearest crossing of car, the enlarged drawing at second crossing helps out.The scheme that provides be still in statu quo draw and show the enlarged drawing at first crossing, its content comprise the road, travel route of vehicle location, next crossing periphery, from car from the distance between crossing to be turned, size remains unchanged; The enlarged drawing at second crossing is also drawn according to its original content, and size is dwindled, and is superimposed upon the upper left corner of the first width expanded view.For the least possible enlarged drawing that blocks first crossing, the enlarged drawing background that second crossing dwindled is shown as translucent, and so neither the enlarged drawing at first crossing is watched in impact, also can see road in thumbnail and the details of route clearly.
When from first crossing of car process, the enlarged drawing at first crossing can disappear immediately.The thumbnail at second crossing in the upper left corner can keep in figure that displaying contents is constant and size increases gradually, increase to when consistent with common expanded view Deng the size of thumbnail, its background becomes the opaque background of common expanded view, and route also can be along with the position from car is upgraded and cancellation successively.So far thumbnail switches to common enlarged drawing fully, and handoff procedure can not given the lofty sensation of driver, can not make the driver produce unnecessary illusion yet, promotes driving safety.
As Fig. 3, at a distance of 120M is only arranged, first crossing needs a mouthful right side enter the right front road from front side continuous two crossings to be turned, and second crossing side that need to keep left is kept straight on.From car near first when turning the crossing, show the enlarged drawing at next crossing in the expanded view of demonstration in the mode of thumbnail, show: two crossing close together, remind the driver to note.Clearly provide the turning situation at second crossing, make the driver very clear.Avoid in a rush.
When passing through first crossing from car, the enlarged drawing at first crossing disappears, and thumbnail switches to common enlarged drawing in the animation mode, continues guiding and moves ahead from car.
Advantage of the present invention:
In guider of the present invention, the method for designing of enlarged drawing junction ahead prompting thumbnail, guarantee to demonstrate on appropriate opportunity correct enlarged drawing and junction ahead thumbnail; And can normally switch, disappear.This form of junction ahead thumbnail is unprecedented, and it should depend on crossing enlarged drawing function, plays again the effect of prompting directly perceived, and can not affect the information that original enlarged drawing is showed.The demonstration of junction ahead thumbnail, switching, disappearance opportunity and method have been accomplished prompting directly perceived, the driver are not disturbed to some extent again.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and the embodiments:
Fig. 1 is the surface chart that does not have thumbnail to show;
Fig. 2 is the internal module structural drawing;
Fig. 3 is the surface chart that shows with thumbnail.
Embodiment
Embodiment 1
The present embodiment provides the method for designing of enlarged drawing junction ahead prompting thumbnail in a kind of guider, it is characterized in that: the method for designing of enlarged drawing junction ahead prompting thumbnail in described guider, on the basis of common enlarged drawing, provide especially enlarged drawing junction ahead prompting thumbnail, the special enlarged drawing during the crossing close together that shows clearly that continuous two needs turn;
Enlarged drawing junction ahead prompting thumbnail, crossing identification judge module is judged the close together that there are two crossings to be turned in the place ahead, enlarged drawing control module on opportunity in crossing judges when these two crossings are not enough to be presented in same enlarged drawing, on the basis of the enlarged drawing at first crossing simultaneously on the enlarged drawing of form Overlapping display at first crossing of enlarged drawing with thumbnail with second crossing;
Allow the observer see simultaneously two width enlarged drawings, wherein take distance from the enlarged drawing at car nearest crossing as main, normal size shows; Second enlarged drawing keeps the interior content of figure constant, and size is dwindled, and background is semi-transparent, is superimposed upon the upper left corner of first expanded view; When passing through first after turning the crossing from car, first crossing enlarged drawing cancellation immediately; The thumbnail in the upper left corner amplifies gradually, until be of a size of common expanded view, and accurately shows from the car position in new expanded view and apart from the distance at turning crossing, the place ahead; If still have continuous two crossing to be turned close together this moment, can continue thumbnail to occur with same form;
Idiographic flow is as follows:
Crossing identification judge module is judged the relative distance between car and next crossing, whether satisfies expanded view by the relative distance of crossing enlarged drawing control module on opportunity judgement between car and next crossing and shows opportunity, if so, carries out next step; Otherwise continue judgement;
Identification judge module in crossing provides next crossing and the relative distance between next crossing again, by crossing enlarged drawing control module on opportunity judge next crossing and again the relative distance between next crossing whether satisfy the opportunity that thumbnail shows, if so, carry out next step; Otherwise show basic expanded view;
By crossing enlarged drawing display module, describe distance from the enlarged drawing at the nearest crossing of car, form is basic crossing enlarged drawing, its content comprises the road, travel route of vehicle location, next crossing periphery, from car from the distance between crossing to be turned;
By crossing identification judge module, judge the relative distance between vehicle and next crossing, by crossing enlarged drawing control module on opportunity, judge that vehicle whether by the crossing, if pass through, carries out next step; Otherwise continue to upgrade from car the relative position in expanded view;
By crossing enlarged drawing control module on opportunity, control crossing enlarged drawing display module, the enlarged drawing at blanking nearest crossing; Simultaneously the thumbnail dimensions at next crossing is amplified, until be amplified to basic enlarged drawing consistent size till; On this enlarged drawing content still comprise the road, travel route of vehicle location, next crossing periphery, from the distance between spacing crossing to be turned;
The module of controlling enlarged drawing is numerous, must accomplish between each module that Each performs its own functions, concerted effort coordinates guarantee to demonstrate correct enlarged drawing and junction ahead thumbnail on appropriate opportunity; And can normally switch, disappear.
This form of junction ahead thumbnail is unprecedented, and it should depend on crossing enlarged drawing function, plays again the effect of prompting directly perceived, and can not affect the information that original enlarged drawing is showed.
The demonstration of junction ahead thumbnail, switching, disappearance opportunity and method should be accomplished prompting directly perceived, can not disturb to some extent the driver again.
The hardware module that realizes enlarged drawing junction ahead prompting thumbnail in guider is as follows:
The geography information read module:
The geography information read module is the basic module of navigational system, and it is responsible for the geographic information data with vehicle-surroundings and travel route periphery, reads internal memory from external memory (as SD card, DVD CD).This module has played vital effect for the real-time that guarantees navigational system and junction ahead thumbnail function.
The GPS locating module
The GPS locating module is also the basic module of whole navigation, this module on the basis of geography information read module, the vehicle location that receiving world locational system (GPS) transmits, and with vehicle location to road.
Crossing identification judge module
Crossing identification judge module, on the basis of geography information read module and GPS module, the road at real-time judge vehicle place and the information of junction ahead.Specifically, this module can judge and provide following information:
The title of vehicle place road, road grade etc.
When the route that vehicle is set according to navigational system advances, the title of next that enters after a turning road, road grade etc.
The longitude and latitude position of junction ahead, and junction ahead and the distance between car.
The travel route of " how vehicle should advance, turn to " is provided.
Distance between continuous two crossings to be turned, the place ahead, this information is the basis of junction ahead thumbnail prompt facility.
Whether vehicle has passed through the crossing.
Crossing enlarged drawing control module on opportunity
On the basis of cartographic information read module, crossing identification judge module and crossing identification judge module, complete following functions:
According to the rank of road, and the distance between vehicle and junction ahead, determine when should show the crossing enlarged drawing on screen.
After showing the crossing enlarged drawing on screen, according to the position of vehicle, control in real time the display position of vehicle icon on screen.
When vehicle when the crossing, with the blanking from the screen of crossing enlarged drawing.
According to road grade, the situations such as the speed of a motor vehicle determine whether to need to show the junction ahead thumbnail.
When judgement switches between enlarged drawing and thumbnail according to the vehicle real time position.
Crossing enlarged drawing display module
On the basis of geography information read module, crossing enlarged drawing control module on opportunity, complete the demonstration of crossing enlarged drawing on screen.Specifically, following steps are arranged:
On the basis of geography information read module, show the detailed electronic chart of junction ahead periphery on screen.
On the basis of crossing identification judge module, show the travel route of " how vehicle should advance, turn to " on screen.
If identifying the place ahead, crossing identification judge module have two continuous crossing distances to satisfy the display condition of enlarged drawing thumbnail, crossing enlarged drawing display module can be depicted as thumbnail with the details of second crossing periphery, is superimposed upon the upper left corner of original enlarged drawing.
In order to demonstrate the enlarged drawing at two crossings to be turned, the place ahead in limited zone, and mainly show from the enlarged drawing from the nearest crossing of car, the enlarged drawing at second crossing helps out.The scheme that provides be still in statu quo draw and show the enlarged drawing at first crossing, its content comprise the road, travel route of vehicle location, next crossing periphery, from car from the distance between crossing to be turned, size remains unchanged; The enlarged drawing at second crossing is also drawn according to its original content, and size is dwindled, and is superimposed upon the upper left corner of the first width expanded view.For the least possible enlarged drawing that blocks first crossing, the enlarged drawing background that second crossing dwindled is shown as translucent, and so neither the enlarged drawing at first crossing is watched in impact, also can see road in thumbnail and the details of route clearly.
When from first crossing of car process, the enlarged drawing at first crossing can disappear immediately.The thumbnail at second crossing in the upper left corner can keep in figure that displaying contents is constant and size increases gradually, increase to when consistent with common expanded view Deng the size of thumbnail, its background becomes the opaque background of common expanded view, and route also can be along with the position from car is upgraded and cancellation successively.So far thumbnail switches to common enlarged drawing fully, and handoff procedure can not given the lofty sensation of driver, can not make the driver produce unnecessary illusion yet, promotes driving safety.
As Fig. 3, at a distance of 120M is only arranged, first crossing needs a mouthful right side enter the right front road from front side continuous two crossings to be turned, and second crossing side that need to keep left is kept straight on.From car near first when turning the crossing, show the enlarged drawing at next crossing in the expanded view of demonstration in the mode of thumbnail, show: two crossing close together, remind the driver to note.Clearly provide the turning situation at second crossing, make the driver very clear.Avoid in a rush.
When passing through first crossing from car, the enlarged drawing at first crossing disappears, and thumbnail switches to common enlarged drawing in the animation mode, continues guiding and moves ahead from car.
Claims (2)
1. the method for designing of enlarged drawing junction ahead prompting thumbnail in a guider, it is characterized in that: the method for designing of enlarged drawing junction ahead prompting thumbnail in described guider, on the basis of common enlarged drawing, provide especially enlarged drawing junction ahead prompting thumbnail, the special enlarged drawing during the crossing close together that shows clearly that continuous two needs turn;
Enlarged drawing junction ahead prompting thumbnail, crossing identification judge module is judged the close together that there are two crossings to be turned in the place ahead, enlarged drawing control module on opportunity in crossing judges when these two crossings are not enough to be presented in same enlarged drawing, on the basis of the enlarged drawing at first crossing simultaneously on the enlarged drawing of form Overlapping display at first crossing of enlarged drawing with thumbnail with second crossing;
Allow the observer see simultaneously two width enlarged drawings, wherein take distance from the enlarged drawing at car nearest crossing as main, normal size shows; Second enlarged drawing keeps the interior content of figure constant, and size is dwindled, and background is semi-transparent, is superimposed upon the upper left corner of first expanded view; When passing through first after turning the crossing from car, first crossing enlarged drawing cancellation immediately; The thumbnail in the upper left corner amplifies gradually, until be of a size of common expanded view, and accurately shows from the car position in new expanded view and apart from the distance at turning crossing, the place ahead; If still have continuous two crossing to be turned close together this moment, can continue thumbnail to occur with same form;
Idiographic flow is as follows:
Crossing identification judge module is judged the relative distance between car and next crossing, whether satisfies expanded view by the relative distance of crossing enlarged drawing control module on opportunity judgement between car and next crossing and shows opportunity, if so, carries out next step; Otherwise continue judgement;
Identification judge module in crossing provides next crossing and the relative distance between next crossing again, by crossing enlarged drawing control module on opportunity judge next crossing and again the relative distance between next crossing whether satisfy the opportunity that thumbnail shows, if so, carry out next step; Otherwise show basic expanded view;
By crossing enlarged drawing display module, describe distance from the enlarged drawing at the nearest crossing of car, form is basic crossing enlarged drawing, its content comprises the road, travel route of vehicle location, next crossing periphery, from car from the distance between crossing to be turned;
By crossing identification judge module, judge the relative distance between vehicle and next crossing, by crossing enlarged drawing control module on opportunity, judge that vehicle whether by the crossing, if pass through, carries out next step; Otherwise continue to upgrade from car the relative position in expanded view;
By crossing enlarged drawing control module on opportunity, control crossing enlarged drawing display module, the enlarged drawing at blanking nearest crossing; Simultaneously the thumbnail dimensions at next crossing is amplified, until be amplified to basic enlarged drawing consistent size till; On this enlarged drawing content still comprise the road, travel route of vehicle location, next crossing periphery, from the distance between spacing crossing to be turned.
2. according to the method for designing of enlarged drawing junction ahead prompting thumbnail in guider claimed in claim 1, it is characterized in that: describedly realize that hardware module and the function of enlarged drawing junction ahead prompting thumbnail in guider are as follows:
The geography information read module:
The geography information read module is the basic module of navigational system, and it is responsible for the geographic information data with vehicle-surroundings and travel route periphery, from external memory, as SD card or DVD disc reading in internal memory; This module has played vital effect for the real-time that guarantees navigational system and junction ahead thumbnail function;
The GPS locating module
The GPS locating module is also the basic module of whole navigation, this module on the basis of geography information read module, the vehicle location that receiving world locational system transmits, and with vehicle location to road;
Crossing identification judge module
Crossing identification judge module, on the basis of geography information read module and GPS module, the road at real-time judge vehicle place and the information of junction ahead; Specifically, this module can judge and provide following information:
The title of vehicle place road, road grade etc.;
When the route that vehicle is set according to navigational system advances, the title of next that enters after a turning road, road grade etc.;
The longitude and latitude position of junction ahead, and junction ahead and the distance between car;
The travel route of " how vehicle should advance, turn to " is provided;
Distance between continuous two crossings to be turned, the place ahead, this information is the basis of junction ahead thumbnail prompt facility;
Whether vehicle has passed through the crossing;
Crossing enlarged drawing control module on opportunity
On the basis of cartographic information read module, crossing identification judge module and crossing identification judge module, complete following functions:
According to the rank of road, and the distance between vehicle and junction ahead, determine when should show the crossing enlarged drawing on screen;
After showing the crossing enlarged drawing on screen, according to the position of vehicle, control in real time the display position of vehicle icon on screen;
When vehicle when the crossing, with the blanking from the screen of crossing enlarged drawing;
According to road grade, the situations such as the speed of a motor vehicle determine whether to need to show the junction ahead thumbnail;
When judgement switches between enlarged drawing and thumbnail according to the vehicle real time position;
Crossing enlarged drawing display module
On the basis of geography information read module, crossing enlarged drawing control module on opportunity, complete the demonstration of crossing enlarged drawing on screen; Specifically, following steps are arranged:
On the basis of geography information read module, show the detailed electronic chart of junction ahead periphery on screen;
On the basis of crossing identification judge module, show the travel route of " how vehicle should advance, turn to " on screen;
If identifying the place ahead, crossing identification judge module have two continuous crossing distances to satisfy the display condition of enlarged drawing thumbnail, crossing enlarged drawing display module can be depicted as thumbnail with the details of second crossing periphery, is superimposed upon the upper left corner of original enlarged drawing;
In order to demonstrate the enlarged drawing at two crossings to be turned, the place ahead in limited zone, and mainly show from the enlarged drawing from the nearest crossing of car, the enlarged drawing at second crossing helps out; The scheme that provides be still in statu quo draw and show the enlarged drawing at first crossing, its content comprise the road, travel route of vehicle location, next crossing periphery, from car from the distance between crossing to be turned, size remains unchanged; The enlarged drawing at second crossing is also drawn according to its original content, and size is dwindled, and is superimposed upon the upper left corner of the first width expanded view; For the least possible enlarged drawing that blocks first crossing, the enlarged drawing background that second crossing dwindled is shown as translucent, and so neither the enlarged drawing at first crossing is watched in impact, also can see road in thumbnail and the details of route clearly;
When from first crossing of car process, the enlarged drawing at first crossing can disappear immediately; The thumbnail at second crossing in the upper left corner can keep in figure that displaying contents is constant and size increases gradually, increase to when consistent with common expanded view Deng the size of thumbnail, its background becomes the opaque background of common expanded view, and route also can be along with the position from car is upgraded and cancellation successively; So far thumbnail switches to common enlarged drawing fully, and handoff procedure can not given the lofty sensation of driver, can not make the driver produce unnecessary illusion yet, promotes driving safety.
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| CN103471609A (en) * | 2013-09-24 | 2013-12-25 | 沈阳美行科技有限公司 | Guide designing method for information under non-path planning |
| CN105387869A (en) * | 2015-12-08 | 2016-03-09 | 腾讯科技（深圳）有限公司 | Navigation information display method and device of navigation equipment |
| CN108088459A (en) * | 2018-01-30 | 2018-05-29 | 上海思愚智能科技有限公司 | A kind of air navigation aid, device, server and computer readable storage medium |
| CN110081901A (en) * | 2019-04-08 | 2019-08-02 | 百度在线网络技术（北京）有限公司 | Crossing display methods, device, equipment and computer readable storage medium |
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| CN111197992A (en) * | 2018-11-20 | 2020-05-26 | 北京嘀嘀无限科技发展有限公司 | Enlarged intersection drawing method and system and computer-readable storage medium |
| CN112815958A (en) * | 2021-01-07 | 2021-05-18 | 腾讯科技（深圳）有限公司 | Navigation object display method, device, equipment and storage medium |
| CN113029165A (en) * | 2021-02-24 | 2021-06-25 | 腾讯科技（深圳）有限公司 | Navigation data processing method and device, electronic equipment and storage medium |
| CN114440906A (en) * | 2020-10-30 | 2022-05-06 | 阿里巴巴集团控股有限公司 | Navigation prompting method, device, related equipment and storage medium |
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