CN101738191B - Navigation device and one-side multi-junction enlarged image display method - Google Patents
Navigation device and one-side multi-junction enlarged image display method Download PDFInfo
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- CN101738191B CN101738191B CN2009102486653A CN200910248665A CN101738191B CN 101738191 B CN101738191 B CN 101738191B CN 2009102486653 A CN2009102486653 A CN 2009102486653A CN 200910248665 A CN200910248665 A CN 200910248665A CN 101738191 B CN101738191 B CN 101738191B
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Abstract
The invention relates to a one-side multi-junction enlarged image display method of a navigation device, comprising a navigation device. The one-side multi-junction enlarged image display method is realized in such a process: the junction identifying and judging module is used for judging a relative distance between a vehicle and a next junction; the junction enlarged image timing control module is used for judging a relative between a vehicle and a next juction; the junction identifying and judging module is used for calculating the absolute positions of the one-side junctions; a junction enlarged image display module is used for describing usual enlarged images, for numbering the one-side junctions and drawing numbers of the one-side junctions on the basis of a general junction enlarged image. The junction identifying and judging module is used for judging a relative distance between a vehicle and a next junction, and the junction enlarged image timing control module is used for judging if a vehicle has passed. The invention has the advantage of displaying the numbers of the junctions on a screen for the steering junctions of vehicles in an emphasis mode.
Description
Technical field
The present invention relates to the auto-navigation system field, a kind of guider and one-side multi-junction enlarged image display method are provided especially.
Background technology
Along with the rise of Automobile Electronic Industry, auto-navigation system begins to enter into people's sight.Auto-navigation system is on the basis of embedded hardware, global GPS location, geographic information data, and the synthesis of services such as electronic chart, vehicle location, real-time voice guiding, real-time pictures guiding is provided 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 the detail map and the direction information of junction ahead.In general, its displaying contents comprises following several:
● with the crossing is the detail map at center
● 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 the bar road that is about to sail into
" one-side multi mouth " is on crossing enlarged drawing service basis, the innovative function that provides.Hereinafter is put up with the implication, beneficial effect, technical scheme of " one-side multi mouth " etc., does detailed elaboration.
Traditional crossing enlarged drawing can provide the direction information of junction ahead more clearly for the driver.When road was comparatively sparse forwardly, traditional crossing enlarged drawing can solve the problem of " when turn, to which direction turn " for the driver.
And comparatively intensive when the road distribution, a plurality of crossings, the place ahead can be when same direction be turned round, and traditional crossing enlarged drawing will seem unable to do what one wants very much to do.
For instance, like Fig. 1, the place ahead has 4 crossings and can turn right, and the driver should turn right at the 3rd crossing.In this case, the driver need stare at the crossing enlarged drawing every now and then and see, fears can turn in advance or miss the crossing.And in driving procedure, remove to stare at the crossing enlarged drawing often to see, will inevitably disperse driver's notice; In other words, when running into this situation, the driver need divert one's attention to judge; Should be how to get to, these reactions have reduced driver's driving process safe rank undoubtedly.
Summary of the invention
The objective of the invention is in order to improve driving process safe rank, the spy provides a kind of guider and one-side multi-junction enlarged image display method, can clearly show the crossing figure of amplification.
The invention provides a kind of guider, it is characterized in that: described guider comprises external storage controller 1, GPS locating module 2, user input device 3; CPU4, ROM5, RAM6, cartographic information read module 8; External memory storage 9, guiding route computing module 10, crossing identification judge module 11, crossing enlarged drawing control module on opportunity 12; User interface display module 13, crossing enlarged drawing display module 14, electronic chart display module 15; Image synthesis unit 16, display controller 17, display device 18;
Wherein: external memory storage 9 is connected with external storage controller 1 through data line; External storage controller 1, GPS locating module 2,, user input device 3, CPU4, ROM5, RAM6, cartographic information read module 8, guiding route computing module 10, crossing identification judge module 11, crossing enlarged drawing control module on opportunity 12, user interface display module 13, crossing enlarged drawing display module 14, electronic chart display module 15, display controller 17, display device 18 be connected with bus through data line respectively;
Described guider also comprises voice controller 7, and voice controller 7 is connected with bus through data line.
Crossing identification judge module 11 in the described guider has the standalone module of the longitude and latitude position of what forks in the road that turn to equally, each fork in the road for can judge between vehicle and the junction ahead.
Described crossing enlarged drawing control module on opportunity 12 is can be according to the rank of road, and the distance between vehicle and the junction ahead, and when decision should show the standalone module of crossing enlarged drawing on screen.
A kind of one-side multi-junction enlarged image display method of guider is characterized in that: the implementation procedure of described one-side multi-junction enlarged image display method does,
1) judges the relative distance between vehicle and next crossing by crossing identification judge module 11; By crossing enlarged drawing control module on opportunity 12, judge the relative distance between vehicle and next crossing, whether less than a predetermined value (as 300 meters), if then carry out next step; Otherwise continue to judge;
2), calculate there are what homonymy crossings between vehicle and next crossing, and the absolute position at these homonymy crossings is calculated by crossing identification judge module 12;
3), describe common crossing enlarged drawing by crossing enlarged drawing display module 14; Common crossing enlarged drawing, its content comprise road, the travel route of vehicle location, next crossing periphery, but do not comprise homonymy crossing numbering;
4) by crossing enlarged drawing display module 14, identification judge module 12 is obtained the number at homonymy crossing from the crossing, if having one and above homonymy crossing, then carries out next step, otherwise skips to for the 6th step;
5), these homonymy crossings are numbered, and on common enlarged drawing basis, crossing, describe these homonymy crossing numberings by crossing enlarged drawing display module 14;
6) by crossing identification judge module 11, judge the relative distance between vehicle and next crossing,, judge that vehicle whether through the crossing, if pass through, then carries out next step by crossing enlarged drawing control module on opportunity 12; Otherwise skipped to for the 3rd step;
7) by crossing enlarged drawing control module on opportunity 12, control crossing enlarged drawing display module 14, blanking crossing enlarged drawing.
Described one-side multi-junction enlarged image display method is that the crossing identification judge module 11 in the guider therefrom reads cartographic information; Guiding route computing module 10 is with passing under the route calculation result in the crossing identification judge module 11; Crossing enlarged drawing display module 14 reads information from crossing enlarged drawing control module on opportunity 12, crossing identification judge module 11 and guiding route computing module 10, finally export to image synthesis unit 16.
Title, the road grade of described crossing identification judge module 11 identification vehicle place roads; When the route that vehicle is set according to navigational system advances, title, the road grade of next bar road that the back of turning gets into; The longitude and latitude position of junction ahead, and the detailed distance between junction ahead and the vehicle; The travel route of " how vehicle should advance, turn to " is provided; Judge between vehicle and the junction ahead that what forks in the road that turn to equally, the longitude and latitude position of each fork in the road are arranged; Whether vehicle has passed through the crossing.
Described crossing enlarged drawing control module on opportunity 12 therefrom reads cartographic information, according to the rank of road, and the distance between vehicle and the junction ahead, when decision should show the crossing enlarged drawing on screen; After showing the crossing enlarged drawing on the screen,, control the display position of vehicle icon on screen in real time according to the position of vehicle; When vehicle when the crossing, with the blanking from the screen of crossing enlarged drawing.
Described crossing enlarged drawing display module 14 shows the detailed electronic chart of junction ahead periphery through information is provided on screen; Through crossing identification judge module 11 information is provided, on screen, shows the travel route of " how vehicle should advance, turn to ";
Through crossing identification judge module 11 information is provided, the same fork in the road that turns to, the place ahead is numbered, and on screen, show the numbering of each fork in the road; Wherein, the crossing to vehicle should be turned can be presented at the crossing numbering on the screen with the form of " highlighting "; How this step has determined " one-side multi mouth enlarged and displayed " function is represented to the driver intuitively, and driver's " a glance just can be seen clearly " should be turned at which crossing.
The one-side multi mouth is the practical problems that influences driving safety in order to have solved, the innovative function of proposition.In the top example, the most effectively solution is: avoid letting the driver stare at screen and go to which crossing of number to turn, but will tell him " should turn at the 3rd crossing " intuitively, like Fig. 2.
Crossing identification judge module 11, the implementation method at judgement homonymy crossing
Accompanying drawing 6 is to describe a next secondary exemplary electronic map by electronic chart display module 15, and hereinafter will be with the implementation procedure of accompanying drawing 6 as supplementary means explanation judgement homonymy crossing.
Crossing identification judge module 11, judge that the process at homonymy crossing is divided into following 2 steps:
1. from vehicle location 21 beginnings, derive forward, judge the junction ahead position;
Detailed derivation, as shown in the table:
| Number of times | The intersection | Possible forward method | How travel route is through this | Derivation result | |
| 1 | |
Keep straight on and turn right | Keep straight on | It or not next |
|
| 2 | |
Keep straight on and turn left to turn right | Keep straight on | It or not next crossing | |
| 3 | Intersection 33 | Keep straight on | Keep straight on | It or not next crossing | |
| 4 | |
Keep straight on and turn left to turn right | Keep straight on | This intersection is next crossing, and derivation finishes. |
2. from next crossing 23 beginning, derive backward, judge the position at a plurality of homonymies crossing along travel route 24.Identification module 11 is judged at the crossing, from next crossing 23 beginning, derives backward along travel route 24.In the derivation,, just judge whether this intersection exists the forward method similar with next crossing 23 whenever to an intersection.If exist, think that then this intersection is the homonymy crossing at next crossing 23; Otherwise continue to derive backward.
Similar forward method is defined as: turning right, turn to the right front, turning to the right back is similar forward method; Left-hand rotation, port the place ahead, port rear are similar forward method.
The condition that stops to derive is to meet following two kinds and one of judge:
1. in the derivation, the intersection that runs into is at the rear of vehicle location 21 (promptly this intersection is passed through).
2. total distance of deriving has been greater than or equal to a predetermined value (as 300 meters).
Detailed derivation, as shown in the table:
| Number of times | The intersection | Possible forward method | The steering direction at |
|
| 1 | Intersection 33 | Keep straight on | Turn right | Can not turn right in this crossing, be not the homonymy crossing |
| 2 | |
Keep straight on and turn left to turn right | Turn right | Can turn right in this crossing, be the homonymy crossing |
| 3 | |
Keep straight on and turn right | Turn right | Can turn right in this crossing, be the homonymy crossing |
| 4 | |
Keep straight on and turn left to turn right | Turn right | This intersection is at rear view of vehicle, and derivation finishes. |
Crossing enlarged drawing control module on opportunity 12; The implementation method of the demonstration/blanking of control crossing enlarged drawing; Crossing enlarged drawing control module on opportunity 12; The vehicle location 21 and the current distance between next crossing 23 that ceaselessly provide according to crossing identification judge module 11 judge whether to need to show perhaps blanking crossing enlarged drawing.
If the current distance between vehicle location 21 and next crossing 23 greater than a predetermined value (as 300 meters), is then controlled with lower module and is carried out following action:
● control electronic chart display module 15 shows electronic chart with full frame mode.
● control user interface display module 13, display of user interfaces superposes on the basis of electronic chart.
Final display effect on display device 18 is seen accompanying drawing 7.
If the current distance between vehicle location 21 and next crossing 23 is less than or equal to a predetermined value (as 300 meters), then controls with lower module and carry out following action:
● control electronic chart display module 15 shows electronic chart on the half of screen in a left side.
● control crossing enlarged drawing display module 14 shows the crossing enlarged drawing on the half of screen in the right side.
● control is used for interface display module 13, on the basis of electronic chart and crossing enlarged drawing, and the stack display of user interfaces.
Final display effect on display device 18 is seen accompanying drawing 8.
If the current distance between vehicle location 21 and next crossing 23 is equal to or less than 0 meter, has promptly arrived or, then controlled with lower module and carry out following action through next crossing:
● control electronic chart display module 15 shows electronic chart with full frame mode.
● control crossing enlarged drawing display module 14, blanking crossing enlarged drawing.
● control user interface display module 13, display of user interfaces superposes on the basis of electronic chart.
Final display effect on display device 18 is seen accompanying drawing 7.
Crossing enlarged drawing display module 14 shows the implementation method that number at the homonymy crossing:
Crossing enlarged drawing display module 14 can be discerned the information that obtains next crossing and a plurality of homonymies crossing the judge module 11 from the crossing.With Fig. 7 is example, and it is as shown in the table to obtain information:
| Sequence number | The intersection | The attribute of |
| 1 | |
This intersection promptly is next crossing 23 |
| 2 | |
This intersection is the homonymy crossing at |
| 3 | |
This intersection is the homonymy crossing at |
Crossing enlarged drawing display module 14 is further processed above a plurality of homonymy intersection informations, to guarantee the only homonymy crossing in the screen display scope, just can be numbered.Job operation does, from beginning apart from homonymy crossing farthest, next crossing 23, judges that successively this homonymy crossing is whether in the screen display scope.If in the screen display scope, then this homonymy crossing is numbered; Otherwise do not number.
The result of processing is as shown in the table:
| Former sequence number | The intersection | Result after the |
| 3 | |
This intersection is numbered 1 in the |
| 2 | |
This intersection is numbered 2 in the |
| 1 | |
This intersection is numbered 3 in the screen scope |
More than the processing result in the table be the basis, the homonymy crossing depicted numbering effect, and the homonymy crossing in seeing in the accompanying drawing 8 numbers 25.
Advantage of the present invention:
The crossing that should turn to vehicle; With the form of " highlighting ", the crossing numbering is presented on the screen, and the crossing that should turn uses special color to indicate; Can reach clear, expression effect intuitively; The driver can make judgement exactly according to specific prompting, that is to say to reach the effect that driver's " a glance just can be seen clearly " should be turned at which crossing.Moreover, such invention can also improve driver's security, and the driver is in the process of driving; Need concentrate basic enlarged drawing prompt facility, meeting dispersion driver's to a certain degree notice; And one-side multi-junction enlarged image display method; Because can be clear, intuitively the crossing situation is reacted to the driver, thereby reduce this probability, and reach and reserve more time and make the driver can concentrate one's energy to pay close attention to the situation of real road.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation:
Fig. 1 is traditional crossing enlarged drawing;
Fig. 2 is the crossing enlarged drawing that has one-side multi mouth function;
Fig. 3 is the guider structural drawing;
Fig. 4 is a functional block diagram;
Fig. 5 is the one-side multi-junction enlarged image workflow diagram;
Fig. 6 is the typical electronic map;
Fig. 7 is electronic chart+user interface;
Fig. 8 is electronic chart+crossing enlarged drawing+user interface;
Among the figure, 20: user interface 21: vehicle location 22: road 23: next crossing 24: travel route 25: homonymy crossing numbering 30 ~ 34: intersection.
Embodiment
Present embodiment provides a kind of guider, it is characterized in that: described guider comprises external storage controller 1, GPS locating module 2, user input device 3; CPU4, ROM5, RAM6, cartographic information read module 8; External memory storage 9, guiding route computing module 10, crossing identification judge module 11, crossing enlarged drawing control module on opportunity 12; User interface display module 13, crossing enlarged drawing display module 14, electronic chart display module 15; Image synthesis unit 16, display controller 17, display device 18;
Wherein: external memory storage 9 is connected with external storage controller 1 through data line; External storage controller 1, GPS locating module 2,, user input device 3, CPU4, ROM5, RAM6, cartographic information read module 8, guiding route computing module 10, crossing identification judge module 11, crossing enlarged drawing control module on opportunity 12, user interface display module 13, crossing enlarged drawing display module 14, electronic chart display module 15, display controller 17, display device 18 be connected with bus through data line respectively;
Described guider also comprises voice controller 7, and voice controller 7 is connected with bus through data line.
Crossing identification judge module 11 in the described guider has the standalone module of the longitude and latitude position of what forks in the road that turn to equally, each fork in the road for can judge between vehicle and the junction ahead.
Described crossing enlarged drawing control module on opportunity 12 is can be according to the rank of road, and the distance between vehicle and the junction ahead, and when decision should show the standalone module of crossing enlarged drawing on screen.
A kind of one-side multi-junction enlarged image display method of guider is characterized in that: the implementation procedure of described one-side multi-junction enlarged image display method does,
1) judges the relative distance between vehicle and next crossing by crossing identification judge module 11; By crossing enlarged drawing control module on opportunity 12, judge the relative distance between vehicle and next crossing, whether less than a predetermined value (as 300 meters), if then carry out next step; Otherwise continue to judge;
2), calculate there are what homonymy crossings between vehicle and next crossing, and the absolute position at these homonymy crossings is calculated by crossing identification judge module 12;
3), describe common crossing enlarged drawing by crossing enlarged drawing display module 14; Common crossing enlarged drawing, its content comprise road, the travel route of vehicle location, next crossing periphery, but do not comprise homonymy crossing numbering;
4) by crossing enlarged drawing display module 14, identification judge module 12 is obtained the number at homonymy crossing from the crossing, if having one and above homonymy crossing, then carries out next step, otherwise skips to for the 6th step;
5), these homonymy crossings are numbered, and on common enlarged drawing basis, crossing, describe these homonymy crossing numberings by crossing enlarged drawing display module 14;
6) by crossing identification judge module 11, judge the relative distance between vehicle and next crossing,, judge that vehicle whether through the crossing, if pass through, then carries out next step by crossing enlarged drawing control module on opportunity 12; Otherwise skipped to for the 3rd step;
7) by crossing enlarged drawing control module on opportunity 12, control crossing enlarged drawing display module 14, blanking crossing enlarged drawing.
Described one-side multi-junction enlarged image display method is that the crossing identification judge module 11 in the guider therefrom reads cartographic information; Guiding route computing module 10 is with passing under the route calculation result in the crossing identification judge module 11; Crossing enlarged drawing display module 14 reads information from crossing enlarged drawing control module on opportunity 12, crossing identification judge module 11 and guiding route computing module 10, finally export to image synthesis unit 16.
Title, the road grade of described crossing identification judge module 11 identification vehicle place roads; When the route that vehicle is set according to navigational system advances, title, the road grade of next bar road that the back of turning gets into; The longitude and latitude position of junction ahead, and the detailed distance between junction ahead and the vehicle; The travel route of " how vehicle should advance, turn to " is provided; Judge between vehicle and the junction ahead that what forks in the road that turn to equally, the longitude and latitude position of each fork in the road are arranged; Whether vehicle has passed through the crossing.
Described crossing enlarged drawing control module on opportunity 12 therefrom reads cartographic information, according to the rank of road, and the distance between vehicle and the junction ahead, when decision should show the crossing enlarged drawing on screen; After showing the crossing enlarged drawing on the screen,, control the display position of vehicle icon on screen in real time according to the position of vehicle; When vehicle when the crossing, with the blanking from the screen of crossing enlarged drawing.
Described crossing enlarged drawing display module 14 shows the detailed electronic chart of junction ahead periphery through information is provided on screen; Through crossing identification judge module 11 information is provided, on screen, shows the travel route of " how vehicle should advance, turn to ";
Through crossing identification judge module 11 information is provided, the same fork in the road that turns to, the place ahead is numbered, and on screen, show the numbering of each fork in the road; Wherein, the crossing to vehicle should be turned can be presented at the crossing numbering on the screen with the form of " highlighting "; How this step has determined " one-side multi mouth enlarged and displayed " function is represented to the driver intuitively, and driver's " a glance just can be seen clearly " should be turned at which crossing.
The one-side multi mouth has solved the practical problems that influence is driven, the innovative function of proposition.In the top example, the most effectively solution is: avoid letting the driver stare at screen and go to which crossing of number to turn, but will tell him " should turn at the 3rd crossing " intuitively, like Fig. 2.
Crossing identification judge module 11, the implementation method at judgement homonymy crossing:
Accompanying drawing 6 is to describe a next secondary exemplary electronic map by electronic chart display module 15, and hereinafter will be with the implementation procedure of accompanying drawing 6 as supplementary means explanation judgement homonymy crossing.
Crossing identification judge module 11, judge that the process at homonymy crossing is divided into following 2 steps:
1. from vehicle location 21 beginnings, derive forward, judge the junction ahead position.
Detailed derivation, as shown in the table:
| Number of times | The intersection | Possible forward method | How travel route is through this | Derivation result | |
| 1 | |
Keep straight on and turn right | Keep straight on | It or not |
|
| 2 | |
Keep straight on and turn left to turn right | Keep straight on | It or not |
|
| 3 | Intersection 33 | Keep straight on | Keep straight on | It or not next crossing | |
| 4 | |
Keep straight on and turn left to turn right | Keep straight on | This intersection is next crossing, and derivation finishes. |
2. from next crossing 23 beginning, derive backward, judge the position at a plurality of homonymies crossing along travel route 24.Identification module 11 is judged at the crossing, from next crossing 23 beginning, derives backward along travel route 24.In the derivation,, just judge whether this intersection exists the forward method similar with next crossing 23 whenever to an intersection.If exist, think that then this intersection is the homonymy crossing at next crossing 23; Otherwise continue to derive backward.
Similar forward method is defined as: turning right, turn to the right front, turning to the right back is similar forward method; Left-hand rotation, port the place ahead, port rear are similar forward method.
The condition that stops to derive is to meet following two kinds and one of judge:
In the derivation, the intersection that runs into is at the rear of vehicle location 21 (promptly this intersection is passed through).
Total distance of deriving has been greater than or equal to a predetermined value (as 300 meters).
Detailed derivation, as shown in the table:
| Number of times | The intersection | Possible forward method | The steering direction at |
|
| 1 | Intersection 33 | Keep straight on | Turn right | Can not turn right in this crossing, be not the homonymy crossing |
| 2 | |
Keep straight on and turn left to turn right | Turn right | Can turn right in this crossing, be the homonymy crossing |
| 3 | |
Keep straight on and turn right | Turn right | Can turn right in this crossing, be the homonymy crossing |
| 4 | |
Keep straight on and turn left to turn right | Turn right | This intersection is at rear view of vehicle, and derivation finishes. |
Crossing enlarged drawing control module on opportunity 12; The implementation method of the demonstration/blanking of control crossing enlarged drawing; Crossing enlarged drawing control module on opportunity 12; The vehicle location 21 and the current distance between next crossing 23 that ceaselessly provide according to crossing identification judge module 11 judge whether to need to show perhaps blanking crossing enlarged drawing.
If the current distance between vehicle location 21 and next crossing 23 greater than a predetermined value (as 300 meters), is then controlled with lower module and is carried out following action:
● control electronic chart display module 15 shows electronic chart with full frame mode.
● control user interface display module 13, display of user interfaces superposes on the basis of electronic chart.
Final display effect on display device 18 is seen accompanying drawing 7.
If the current distance between vehicle location 21 and next crossing 23 is less than or equal to a predetermined value (as 300 meters), then controls with lower module and carry out following action:
● control electronic chart display module 15 shows electronic chart on the half of screen in a left side.
● control crossing enlarged drawing display module 14 shows the crossing enlarged drawing on the half of screen in the right side.
● control is used for interface display module 13, on the basis of electronic chart and crossing enlarged drawing, and the stack display of user interfaces.
Final display effect on display device 18 is seen accompanying drawing 8.
If the current distance between vehicle location 21 and next crossing 23 is equal to or less than 0 meter, has promptly arrived or, then controlled with lower module and carry out following action through next crossing:
● control electronic chart display module 15 shows electronic chart with full frame mode.
● control crossing enlarged drawing display module 14, blanking crossing enlarged drawing.
● control user interface display module 13, display of user interfaces superposes on the basis of electronic chart.
Final display effect on display device 18 is seen accompanying drawing 7.
Crossing enlarged drawing display module 14 shows the implementation method that number at the homonymy crossing:
Crossing enlarged drawing display module 14 can be discerned the information that obtains next crossing and a plurality of homonymies crossing the judge module 11 from the crossing.
With Fig. 7 is example, and it is as shown in the table to obtain information:
| Sequence number | The intersection | The attribute of |
| 1 | |
This intersection promptly is next crossing 23 |
| 2 | |
This intersection is the homonymy crossing at |
| 3 | |
This intersection is the homonymy crossing at |
Crossing enlarged drawing display module 14 is further processed above a plurality of homonymy intersection informations, to guarantee the only homonymy crossing in the screen display scope, just can be numbered.Job operation does, from beginning apart from homonymy crossing farthest, next crossing 23, judges that successively this homonymy crossing is whether in the screen display scope.If in the screen display scope, then this homonymy crossing is numbered; Otherwise do not number.
With Fig. 8 is example, and the result of processing is as shown in the table:
| Former sequence number | The intersection | Result after the |
| 3 | |
This intersection is numbered 1 in the |
| 2 | |
This intersection is numbered 2 in the |
| 1 | |
This intersection is numbered 3 in the screen scope |
[0140]More than the processing result in the table be the basis, the homonymy crossing depicted numbering effect, and the homonymy crossing in seeing in the accompanying drawing 8 numbers 25.
The difference of described guider of present embodiment and embodiment 1 is not have voice controller 7, and all the other hardware and software implementation method are identical with embodiment 1.
Claims (4)
1. the one-side multi-junction enlarged image display method of a guider is characterized in that: the device that described one-side multi-junction enlarged image display method adopts is: a kind of guider comprises external storage controller (1), GPS locating module (2); User input device (3), CPU (4), ROM (5), RAM (6); Cartographic information read module (8), external memory storage (9), guiding route computing module (10), crossing identification judge module (11); Crossing enlarged drawing control module on opportunity (12), user interface display module (13), crossing enlarged drawing display module (14), electronic chart display module (15); Image synthesis unit (16), display controller (17), display device (18);
Wherein: external memory storage (9) is connected with external storage controller (1) through data line, and external storage controller (1), GPS locating module (2), user input device (3), CPU (4), ROM (5), RAM (6), cartographic information read module (8), guiding route computing module (10), crossing identification judge module (11), crossing enlarged drawing control module on opportunity (12), user interface display module (13), crossing enlarged drawing display module (14), electronic chart display module (15), display controller (17), display device (18) are connected with bus through data line respectively;
Image synthesis unit (16) is connected with user interface display module (13), crossing enlarged drawing display module (14), electronic chart display module (15) and display controller (17) through data line respectively; Display controller (17) is connected through data line with display device (18);
Described guider also comprises voice controller (7), and voice controller (7) is connected with bus through data line;
Crossing identification judge module (11) in the described guider has the standalone module of the longitude and latitude position of what forks in the road that turn to equally, each fork in the road for can judge between vehicle and the junction ahead;
Described crossing enlarged drawing control module on opportunity (12) is can be according to the rank of road, and the distance between vehicle and the junction ahead, and when decision should show the standalone module of crossing enlarged drawing on screen;
Described one-side multi-junction enlarged image display method implementation procedure does,
1) by crossing identification judge module (11), judges the relative distance between vehicle and next crossing; By crossing enlarged drawing control module on opportunity (12), judge the relative distance between vehicle and next crossing, whether less than a predetermined value, if then carry out next step; Otherwise continue to judge;
2), calculate there are what homonymy crossings between vehicle and next crossing, and the absolute position at these homonymy crossings is calculated by crossing identification judge module (11);
3), describe common crossing enlarged drawing by crossing enlarged drawing display module (14); Common crossing enlarged drawing, its content comprise road, the travel route of vehicle location, next crossing periphery, but do not comprise homonymy crossing numbering;
4) by crossing enlarged drawing display module (14), obtain the number at homonymy crossing from crossing identification judge module (11), if having one and above homonymy crossing, then carry out next step, otherwise skipped to for the 6th step;
5), these homonymy crossings are numbered, and on common enlarged drawing basis, crossing, describe these homonymy crossing numberings by crossing enlarged drawing display module (14);
6) by crossing identification judge module (11), judge the relative distance between vehicle and next crossing,, judge that vehicle whether through the crossing, if pass through, then carries out next step by crossing enlarged drawing control module on opportunity (12); Otherwise skipped to for (3) step;
7) by crossing enlarged drawing control module on opportunity (12), control crossing enlarged drawing display module (14), blanking crossing enlarged drawing.
2. according to the one-side multi-junction enlarged image display method of the described guider of claim 1; It is characterized in that: described one-side multi-junction enlarged image display method is that the crossing identification judge module (11) in the guider therefrom reads cartographic information; Guiding route computing module (10) is with passing under the route calculation result in the crossing identification judge module (11); Crossing enlarged drawing display module (14) reads information from crossing enlarged drawing control module on opportunity (12), crossing identification judge module (11) and guiding route computing module (10), finally export to image synthesis unit (16).
3. according to the one-side multi-junction enlarged image display method of the described guider of claim 2, it is characterized in that: title, the road grade of described crossing identification judge module (11) identification vehicle place road; When the route that vehicle is set according to navigational system advances, title, the road grade of next bar road that the back of turning gets into; The longitude and latitude position of junction ahead, and the detailed distance between junction ahead and the vehicle; The travel route of " how vehicle should advance, turn to " is provided; Judge between vehicle and the junction ahead that what forks in the road that turn to equally, the longitude and latitude position of each fork in the road are arranged; Whether vehicle has passed through the crossing.
4. according to the one-side multi-junction enlarged image display method of the described guider of claim 2; It is characterized in that: described crossing enlarged drawing control module on opportunity (12) therefrom reads cartographic information; Rank according to road; And the distance between vehicle and the junction ahead, when decision should show the crossing enlarged drawing on screen; After showing the crossing enlarged drawing on the screen,, control the display position of vehicle icon on screen in real time according to the position of vehicle; When vehicle when the crossing, with the blanking from the screen of crossing enlarged drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102486653A CN101738191B (en) | 2009-12-23 | 2009-12-23 | Navigation device and one-side multi-junction enlarged image display method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102486653A CN101738191B (en) | 2009-12-23 | 2009-12-23 | Navigation device and one-side multi-junction enlarged image display method |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102566869A (en) * | 2010-12-27 | 2012-07-11 | 上海博泰悦臻电子设备制造有限公司 | Method and system for automatically scaling display scale of navigation map |
| CN103134510A (en) * | 2012-12-25 | 2013-06-05 | 上海博泰悦臻电子设备制造有限公司 | Navigation prompting method and navigation device |
| CN103353308B (en) * | 2013-04-18 | 2015-08-19 | 沈阳美行科技有限公司 | A kind of real-time aspect billboard guide design method of guider |
| CN103489325B (en) * | 2013-06-17 | 2015-10-28 | 沈阳美行科技有限公司 | A kind of car-mounted terminal and method improving prompt accuracy of electronic eye |
| CN104613969B (en) * | 2013-12-13 | 2017-09-29 | 腾讯科技（深圳）有限公司 | Route methods of exhibiting and device |
| CN104316074A (en) * | 2014-11-12 | 2015-01-28 | 沈阳美行科技有限公司 | Method for designing real-time electronic eye expanded image guidance in non-guided state |
| CN105571608B (en) * | 2015-12-22 | 2019-03-19 | 苏州佳世达光电有限公司 | Navigation system, vehicle and navigation map transmission method |
| CN108955712A (en) * | 2017-05-18 | 2018-12-07 | 佛山市顺德区顺达电脑厂有限公司 | The method of preview shooting image and more camera lens vehicle-running recording systems |
| CN107907139A (en) * | 2017-11-06 | 2018-04-13 | 广东欧珀移动通信有限公司 | Air navigation aid, device, storage medium and mobile terminal |
| CN108489506B (en) * | 2018-03-02 | 2020-12-18 | 百度在线网络技术（北京）有限公司 | Method, device, terminal and medium for displaying enlarged intersection image |
| CN109115242B (en) * | 2018-08-28 | 2020-11-06 | 百度在线网络技术（北京）有限公司 | Navigation evaluation method, device, terminal, server and storage medium |
| CN111197992B (en) * | 2018-11-20 | 2021-12-07 | 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 |
| CN111078088B (en) * | 2019-11-29 | 2021-08-24 | 维沃移动通信有限公司 | Interface control method, electronic device, and computer-readable 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 |
| CN113178093A (en) * | 2021-03-26 | 2021-07-27 | 深圳市博西尼电子有限公司 | Indoor parking lot navigation method, system, terminal and storage medium |
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