CN101936740A - Navigation method of three-dimensional electronic map and device thereof - Google Patents
Navigation method of three-dimensional electronic map and device thereof Download PDFInfo
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- CN101936740A CN101936740A CN 201010262542 CN201010262542A CN101936740A CN 101936740 A CN101936740 A CN 101936740A CN 201010262542 CN201010262542 CN 201010262542 CN 201010262542 A CN201010262542 A CN 201010262542A CN 101936740 A CN101936740 A CN 101936740A
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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
- G01C21/3635—Guidance using 3D or perspective road maps
- G01C21/3638—Guidance using 3D or perspective road maps including 3D objects and buildings
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Abstract
The invention relates to a navigation method of a three-dimensional (3D) electronic map, belonging to the navigation technical field. The navigation method comprises the following steps: A. receiving a GPS satellite signal and determining the current position of a user; B. if the navigation electronic map is determined as a 3D display mode, calculating the distance between the current position of the user and a 3D landmark at the front of a path according to the planned path of the user; if the distance is more than a set value, proceeding to step C, and if the distance is less than or equal to the set value, proceeding to step D; C. continuously displaying the navigation electronic map with the current display mode; and D. displaying the 3D landmark on the navigation electronic map with a semitransparent mode. The invention further provides a 3D electronic map navigation device. The navigation method and the navigation device of the invention effectively avoid the problem that the 3D landmark affects the vision field of the user and even blocks the path at the front of the user during the navigation process using the 3D electronic map, which causes great inconvenience for the user, thus being more favorable for accurate navigation services of the navigation device.
Description
Technical field
The present invention relates to field of navigation technology, relate in particular to a kind of electronic three-dimensional map air navigation aid and device.
Background technology
At present, (Global Positioning System GPS) has been widely used in routine work and the life vehicle-bone global positioning system.But the user of steering vehicle operated navigation systems before setting out be provided with departure place, destination, must be through ground, avoid ground etc.The gps antenna of automobile-used GPS navigation system receives from 3 data messages that transmitted in earth-circling 24 gps satellites at least, in conjunction with the electronic chart that is stored in the Vehicular navigation terminal, position coordinates and the electronic chart determined by gps satellite signal are complementary, determine the position of navigation object in electronic chart, and in conjunction with the suitable path of planning is set and shows of user, the user travels under the guide in this path.
In order to make the user in navigation procedure, more intuitive visual effect can be arranged, existing now various electronic three-dimensional maps, and in electronic three-dimensional map, be written into a plurality of landmarks, so that the user can more directly determine own residing position by electronic chart.
The inventor finds that navigate if use existing electronic three-dimensional map, there are the following problems at least in realizing process of the present invention:
In the prior art, the landmark in the electronic three-dimensional map generally is the model of drawing out according to the landmark material object, or the photo in kind of the landmark after handling.No matter be model or photo in kind, when appearing at the place ahead of navigation way, all can influence user's field range, even block the route in user the place ahead, cause great inconvenience to the user.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of electronic three-dimensional map air navigation aid and device.
The objective of the invention is to be achieved through the following technical solutions:
The technical scheme that the present invention takes comprises: a kind of electronic three-dimensional map air navigation aid is provided, comprises the steps:
Steps A: receive gps satellite signal, determine user's current location;
Step B: if determine that map of navigation electronic is the 3-D display mode, calculate distance between user's current location and the three-dimensional terrestrial reference in the place ahead, path according to user's path planning, as if described distance greater than setting value, execution in step C then, if smaller or equal to described setting value, execution in step D then;
Step C: continue to show described map of navigation electronic with current display mode;
Step D: on described map of navigation electronic, show described three-dimensional terrestrial reference in translucent mode.
Alternatively, described step B also comprises:
If determine that map of navigation electronic is two-dimentional display mode, judge then whether guider starts the 3-D display mode;
If do not start the 3-D display mode, then continue to show described map of navigation electronic with two-dimentional display mode;
If start the 3-D display mode, judge that then whether current engineer's scale is less than the built-in natural scale of guider, if less than described natural scale, then the engineer's scale of current map of navigation electronic is switched to natural scale or greater than natural scale, enter the 3-D display mode afterwards, if more than or equal to described natural scale, then directly enter the 3-D display mode.
Alternatively, described startup 3-D display mode comprises:
Guider is accepted the order that the user starts the 3-D display mode; Or
Guider is provided with the 3-D display mode that starts voluntarily according to inside.
Alternatively, also comprise behind the step D:
Step e: judge whether the user crosses described three-dimensional terrestrial reference position; If, execution in step B then, otherwise continue to show described three-dimensional terrestrial reference in translucent mode, and repeat step e.
A kind of electronic three-dimensional map guider also is provided, comprises:
Position determination unit is used for determining user's current location by receiving gps satellite signal;
Map of navigation electronic display unit: be used for two dimension or three dimensional constitution show navigator electronic chart;
Detecting unit, being used to detect described map of navigation electronic display unit is with two dimension or three dimensional constitution show navigator electronic chart;
Computing unit is used for when described detecting unit detects described map of navigation electronic and is the 3-D display mode, calculates distance between user's current location and the place ahead, the path three-dimensional terrestrial reference according to user's path planning;
Whether first judging unit is used to judge described distance that described computing unit calculates greater than setting value, and sends judged result;
Control module, be used to receive the judged result of described first judging unit, control the display mode of described map of navigation electronic display unit according to described judged result, comprise: continue to show described map of navigation electronic with current display mode if described distance, is then controlled described map of navigation electronic display unit greater than setting value; If smaller or equal to described setting value, then control described map of navigation electronic display unit and show described three-dimensional terrestrial reference in translucent mode.
Can choose, also comprise:
Second judging unit is used to judge whether the user crosses described three-dimensional terrestrial reference position, and sends judged result;
Wherein, described control module, also be used to receive the judged result of described second judging unit, do not cross under the situation of described three-dimensional terrestrial reference position the described second judgment unit judges user, control map of navigation electronic display unit continues to show described three-dimensional terrestrial reference in translucent mode;
Described computing unit, also be used to receive the judged result of described second judging unit, cross under the situation of described three-dimensional terrestrial reference position the described second judgment unit judges user, when continuation is the 3-D display mode at described map of navigation electronic, according to the distance between the three-dimensional terrestrial reference of user's path planning calculating user's current location and the place ahead, path.
Alternatively, also comprise:
The 3rd judging unit is used for when described map of navigation electronic is two-dimentional display mode, judges whether guider starts the 3-D display mode, and sends judged result;
The 4th judging unit is used to receive the judged result of described the 3rd judging unit, when described the 3rd judgment unit judges starts the 3-D display mode, judges that whether current engineer's scale is less than the built-in natural scale of guider;
The engineer's scale switch unit is used at the current engineer's scale of described the 4th judgment unit judges during less than described natural scale, the engineer's scale of current map of navigation electronic is switched to natural scale or greater than natural scale;
Wherein, described control module, also be used to receive the judged result of described the 3rd judging unit, when described the 3rd judgment unit judges did not start the 3-D display mode, control map of navigation electronic display unit continued to show described map of navigation electronic with two-dimentional display mode.
Technical scheme of the present invention is when the distance of user and three-dimensional terrestrial reference during smaller or equal to setting value, by showing be marked with translucent mode three-dimensionally, effectively avoid the applying three-dimensional electronic chart to carry out that three-dimensional terrestrial reference influences user's field range in the navigation procedure, even block the route in user the place ahead, cause the problem of great inconvenience to the user, more help guider and carry out navigation Service accurately.
Description of drawings
Fig. 1 is a kind of electronic three-dimensional map air navigation aid of the present invention process flow diagram.
Fig. 2 is an one embodiment of the invention electronic three-dimensional map air navigation aid process flow diagram;
Fig. 3 is an one embodiment of the invention electronic three-dimensional map guider structural representation;
Fig. 4 is an another embodiment of the present invention electronic three-dimensional map guider structural representation;
Fig. 5 is another embodiment electronic three-dimensional map guider structural representation of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Core concept of the present invention is, when the applying three-dimensional electronic chart navigates, in the distance of user and three-dimensional terrestrial reference during smaller or equal to setting value, show be marked with translucent mode three-dimensionally, avoid three-dimensional terrestrial reference to influence user's field range, even block the route in user the place ahead, cause great inconvenience to the user.
With reference to Fig. 1, be a kind of electronic three-dimensional map air navigation aid of embodiment of the invention process flow diagram, this method specifically comprises the steps:
Step 10: receive gps satellite signal, determine user's current location;
Wherein, the method for determining user's current location according to the gps satellite signal that receives is with reference to prior art, and the embodiment of the invention is not done detailed description to this.
Step 11: if determine that map of navigation electronic is the 3-D display mode, according to the distance between the three-dimensional terrestrial reference of user's path planning calculating user's current location and the place ahead, path;
If described distance is greater than setting value, then execution in step 12; If smaller or equal to described setting value, then execution in step 13;
Wherein, if determine that map of navigation electronic is two-dimentional display mode, promptly non-3-D display mode then alternatively, judges whether guider starts the 3-D display mode;
If do not start the 3-D display mode, then continue to show described map of navigation electronic with two-dimentional display mode;
If start the 3-D display mode, judge that then whether current engineer's scale is less than the built-in natural scale of guider, if less than described natural scale, then the engineer's scale with current map of navigation electronic switches to natural scale, enter the 3-D display mode afterwards, if more than or equal to described natural scale, then directly enter the 3-D display mode.Described natural scale is an engineer's scale that is provided with in the guider, and this natural scale can guarantee that the demonstration of electronic three-dimensional map is convenient to that the user checks, reference.Therefore less at current engineer's scale, as less than this natural scale the time, the effect that electronic three-dimensional map shows is not easy to user's reference, so current engineer's scale switched to natural scale or greater than natural scale.Wherein, guider startup 3-D display mode comprises: guider is accepted the order that the user starts the 3-D display mode; Or guider is provided with the 3-D display mode that starts voluntarily according to inside, is set to start automatically in the zone that stores the electronic three-dimensional map data 3-D display mode of map of navigation electronic as guider.
Step 12: continue to show described map of navigation electronic, and return step 11 with current display mode;
Just continue to show described map of navigation electronic, and the display mode that does not change three-dimensional terrestrial reference is translucent display mode in the 3-D display mode.
Step 13: on described map of navigation electronic, show described three-dimensional terrestrial reference, avoid three-dimensional terrestrial reference to influence user's field range, even block the route in user the place ahead in translucent mode.
Step 14: judge whether the user crosses described three-dimensional terrestrial reference position;
If cross described three-dimensional terrestrial reference position, then execution in step 11, otherwise continue to show described three-dimensional terrestrial reference in translucent mode, and the duplicate step 14 of laying equal stress on crosses described three-dimensional coordinate up to the user, and arrive the destination.
The embodiment of the invention is outstanding inventive point, only introduced with electronic three-dimensional map of the present invention and shown some relevant navigation operation steps, omitted other certain operations in the navigation procedure, for example, for judging whether the user arrives process of destination or the like, the embodiment of the invention is not done concrete qualification for some processes of abridged.
Technical scheme of the present invention is when the distance of user and three-dimensional terrestrial reference during smaller or equal to setting value, by showing be marked with translucent mode three-dimensionally, effectively avoided the applying three-dimensional electronic chart to carry out that three-dimensional terrestrial reference influences user's field range in the navigation procedure, even block the route in user the place ahead, cause the problem of great inconvenience to the user, more help guider and carry out navigation Service accurately.
For ease of further understanding the present invention, with a complete embodiment electronic three-dimensional map air navigation aid of the present invention is described in detail below, shown in Fig. 2, the concrete navigation procedure in navigation beginning back comprises the steps:
Step 20: determine user's current location by receiving gps satellite signal.
Whether step 21: detecting current electronic chart display mode is the 3-D display mode;
Be the 3-D display mode, then execution in step 27, otherwise execution in step 22.
Step 22: judge whether guider starts the electronic three-dimensional map display mode;
If not, then execution in step 23, if then execution in step 24.
In this step, the startup of electronic three-dimensional map display mode can be to receive the user to start by the operation guider, also can be guider voluntarily according to the startup that is provided with of inside, be set to start the electronic three-dimensional map display mode automatically as guider in the zone that is storing the electronic three-dimensional map data.
Step 23: continue with current display mode, as current be two-dimentional display mode, then continue with two-dimentional display mode show navigator electronic chart, and jump to step 22.
Step 24: judge that whether current engineer's scale is less than the natural scale that is provided with in the guider.
The engineer's scale that shows in current electronic map is during more than or equal to natural scale, directly execution in step 26; The engineer's scale that shows at current map of navigation electronic is during less than natural scale, and then execution in step 25.
Step 25: the engineer's scale that current map of navigation electronic is shown switches to natural scale, and execution in step 26 again.
Step 26: with point of interest and the three-dimensional terrestrial reference in 3-D display mode show navigator electronic chart, the current location setting range.
Step 27: according to the distance between the three-dimensional terrestrial reference in path planning calculating user present located position and the place ahead, path.
Step 28: judge that whether distance between current location and the three-dimensional terrestrial reference is greater than setting value;
If then execution in step 29, if not, then execution in step 210.
Step 29: continue with current display mode show navigator electronic chart, the display mode that does not just change three-dimensional terrestrial reference is translucent display mode, and jumps to step 28.
Step 210: in map of navigation electronic, the three-dimensional terrestrial reference in the place ahead, described path is converted to translucent mode and shows.
Step 211: judge whether the user has crossed described three-dimensional terrestrial reference position;
If, then jump to step 27, if not, then execution in step 212.
Step 212: continue to show described three-dimensional terrestrial reference, and jump to step 211, finish up to navigation in translucent mode.
By the introduction of the foregoing description as can be seen, technical scheme of the present invention has effectively avoided the applying three-dimensional electronic chart to carry out that three-dimensional terrestrial reference influences user's field range in the navigation procedure, even block the route in user the place ahead, cause the problem of great inconvenience to the user, more help guider and carry out navigation Service accurately.
The embodiment of the invention also provides a kind of electronic three-dimensional map guider, and with reference to Fig. 3, described guider comprises:
Map of navigation electronic display unit 31 is used for two dimension or three dimensional constitution show navigator electronic chart;
Detecting unit 32, being used to detect described map of navigation electronic display unit 31 is with two dimension or three dimensional constitution show navigator electronic chart;
Whether first judging unit 34 is used to judge described distance that described computing unit 33 calculates greater than setting value, and sends judged result;
As shown in Figure 4, described guider can also comprise:
Second judging unit 36 is used to judge whether the user crosses described three-dimensional terrestrial reference position, and sends judged result;
Described control module 35, also be used to receive the judged result of described second judging unit 36, judge that at described second judging unit 36 user does not cross under the situation of described three-dimensional terrestrial reference position, control map of navigation electronic display unit 31 continues to show described three-dimensional terrestrial reference in translucent mode;
Described computing unit 33, also be used to receive the judged result of described second judging unit 36, judge that at described second judging unit 36 user crosses under the situation of described three-dimensional terrestrial reference position, when continuation is the 3-D display mode at described map of navigation electronic, according to the distance between the three-dimensional terrestrial reference of user's path planning calculating user's current location and the place ahead, path.
As shown in Figure 5, described guider can also comprise:
The 3rd judging unit 37 is used for when described map of navigation electronic is two-dimentional display mode, judges whether guider starts the 3-D display mode, and sends judged result;
The 4th judging unit 38 is used to receive the judged result of described the 3rd judging unit 37, judges at described the 3rd judging unit 37 and judges that whether current engineer's scale is less than the built-in natural scale of guider when starting the 3-D display modes;
Engineer's scale switch unit 39 is used for when described the 4th judging unit 38 is judged current engineer's scale less than described natural scale, the engineer's scale of current map of navigation electronic is switched to natural scale or greater than natural scale;
Described control module 35, also be used to receive the judged result of described the 3rd judging unit 37, when 37 judgements of described the 3rd judging unit did not start the 3-D display mode, control map of navigation electronic display unit continued to show described map of navigation electronic with two-dimentional display mode.
Guider of the present invention has effectively avoided the applying three-dimensional electronic chart to carry out that three-dimensional terrestrial reference influences user's field range in the navigation procedure, even block the route in user the place ahead, cause the problem of great inconvenience to the user, more help guider and carry out navigation Service accurately.
In sum, technical scheme of the present invention is when the distance of user and three-dimensional terrestrial reference during smaller or equal to setting value, by showing be marked with translucent mode three-dimensionally, effectively avoided the applying three-dimensional electronic chart to carry out that three-dimensional terrestrial reference influences user's field range in the navigation procedure, even block the route in user the place ahead, cause the problem of great inconvenience to the user, more help guider and carry out navigation Service accurately.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an electronic three-dimensional map air navigation aid is characterized in that, comprises the steps:
Steps A: receive gps satellite signal, determine user's current location;
Step B: if determine that map of navigation electronic is the 3-D display mode, calculate distance between user's current location and the three-dimensional terrestrial reference in the place ahead, path according to user's path planning, as if described distance greater than setting value, execution in step C then, if smaller or equal to described setting value, execution in step D then;
Step C: continue to show described map of navigation electronic with current display mode;
Step D: on described map of navigation electronic, show described three-dimensional terrestrial reference in translucent mode.
2. the method for claim 1 is characterized in that, described step B also comprises:
If determine that map of navigation electronic is two-dimentional display mode, judge then whether guider starts the 3-D display mode;
If do not start the 3-D display mode, then continue to show described map of navigation electronic with two-dimensional model;
If start the 3-D display mode, judge that then whether current engineer's scale is less than the built-in natural scale of guider, if less than described natural scale, then the engineer's scale of current map of navigation electronic is switched to natural scale or greater than natural scale, enter the 3-D display mode afterwards, if more than or equal to described natural scale, then directly enter the 3-D display mode.
3. method as claimed in claim 2 is characterized in that, described startup 3-D display mode comprises:
Guider is accepted the order that the user starts the 3-D display mode; Or
Guider is provided with the 3-D display mode that starts voluntarily according to inside.
4. the method for claim 1 is characterized in that, also comprises behind the step D:
Step e: judge whether the user crosses described three-dimensional terrestrial reference position; If, execution in step B then, otherwise continue to show described three-dimensional terrestrial reference in translucent mode, and repeat step e.
5. an electronic three-dimensional map guider is characterized in that, comprising:
Position determination unit is used for determining user's current location by receiving gps satellite signal;
Map of navigation electronic display unit: be used for two dimension or three dimensional constitution show navigator electronic chart;
Detecting unit, being used to detect described map of navigation electronic display unit is with two dimension or three dimensional constitution show navigator electronic chart;
Computing unit is used for when described detecting unit detects described map of navigation electronic and is the 3-D display mode, calculates distance between user's current location and the place ahead, the path three-dimensional terrestrial reference according to user's path planning;
Whether first judging unit is used to judge described distance that described computing unit calculates greater than setting value, and sends judged result;
Control module, be used to receive the judged result of described first judging unit, control the display mode of described map of navigation electronic display unit according to described judged result, comprise: continue to show described map of navigation electronic with current display mode if described distance, is then controlled described map of navigation electronic display unit greater than setting value; If smaller or equal to described setting value, then control described map of navigation electronic display unit and show described three-dimensional terrestrial reference in translucent mode.
6. device as claimed in claim 5 is characterized in that, also comprises:
Second judging unit is used to judge whether the user crosses described three-dimensional terrestrial reference position, and sends judged result;
Described control module, also be used to receive the judged result of described second judging unit, do not cross under the situation of described three-dimensional terrestrial reference position the described second judgment unit judges user, control map of navigation electronic display unit continues to show described three-dimensional terrestrial reference in translucent mode;
Described computing unit, also be used to receive the judged result of described second judging unit, cross under the situation of described three-dimensional terrestrial reference position the described second judgment unit judges user, when continuation is the 3-D display mode at described map of navigation electronic, according to the distance between the three-dimensional terrestrial reference of user's path planning calculating user's current location and the place ahead, path.
7. as claim 5 or 6 described devices, it is characterized in that, also comprise:
The 3rd judging unit is used for when described map of navigation electronic is two-dimentional display mode, judges whether guider starts the 3-D display mode, and sends judged result;
The 4th judging unit is used to receive the judged result of described the 3rd judging unit, when described the 3rd judgment unit judges starts the 3-D display mode, judges that whether current engineer's scale is less than the built-in natural scale of guider;
The engineer's scale switch unit is used at the current engineer's scale of described the 4th judgment unit judges during less than described natural scale, the engineer's scale of current map of navigation electronic is switched to natural scale or greater than natural scale;
Described control module also is used to receive the judged result of described the 3rd judging unit, and when described the 3rd judgment unit judges did not start the 3-D display mode, control map of navigation electronic display unit continued to show described map of navigation electronic with two-dimentional display mode.
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