CN101979962A - Navigation display method and device - Google Patents
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Abstract
The invention provides a navigation display method, which comprises the following steps of: acquiring positioning data and route data; displaying a located position on a screen according to the positioning data and a preset display parameter; and displaying a route on the screen according to the route data, the positioning data and the preset display parameter. The invention also provides a navigation display device. Through the navigation display method and the navigation display device, the route and the located position are displayed without depending on map data, so that the route and the located position still can be correctly displayed when the map data cannot be acquired, and the accuracy of navigation display is improved.
Description
Technical field
The present invention relates to airmanship, relate in particular to a kind of navigation display method and device.
Background technology
Comprise off-line type navigation and online navigation in the airmanship.Wherein,, therefore be convenient to the real-time update geodata, have more advantage than the off-line type navigation because online navigation is obtained geodata by network.
Use online airmanship, the navigation display method that adopts is at present, obtain map datum and route data by network, by GPS (Global Positioning System, abbreviation GPS) satellite obtains locator data, the coordinate that comprises in the first data according to the map and corresponding relation displayed map on screen of geographic object mate coordinate in route data and the locator data and the coordinate in the map datum respectively again, show route and position location on map.
Because the map datum of online navigation and route data depend on network and obtain, therefore when using online navigation, the quality of network signal can directly influence navigation effect.Because the map datum that gets access to each time includes only near the geography information of the specified scope of current location, if guider is arranged in the automobile of fast running, in order to guarantee that normal navigation shows, need be along with moving of guider obtained new map datum in real time, therefore, when a certain moment network signal interrupts, can't obtain new map datum from network.Navigation display method according to present employing, when showing route and position location, the method that the coordinate in route data and the locator data and the coordinate in the map datum are mated in employing, then can't obtain from network under the situation of new map datum, can still show the map datum corresponding map that previous moment is obtained on the screen, and the route that shows on the screen can only comprise the route of route data in this body of a map or chart; The position location that shows on the screen can be moved along with moving on this map of navigator, if but the position of navigator moves to beyond the scope of this map correspondence in the reality, then just can't correctly demonstrate the position location of this position correspondence on the screen, also can't show the place ahead route required when being positioned at this position.After network signal recovers, gets access to new map datum again, could normally show.Therefore, adopt existing navigation display method, the accuracy that navigation shows is low.
Summary of the invention
The invention provides a kind of navigation display method,, improve the accuracy that navigation shows in order to solve defective of the prior art.
The present invention also provides a kind of Navigation Display Unit, in order to solve defective of the prior art, improves the accuracy that navigation shows.
The invention provides a kind of navigation display method, comprising:
Obtain locator data and route data;
According to described locator data and default display parameter, on screen, show the position location;
According to described route data, described locator data and described default display parameter, on screen, show route.
Aforesaid navigation display method wherein, also comprises: obtain map datum;
Judge whether that success obtains map datum, if, according to described map datum, described locator data and default display parameter, displayed map on screen; Otherwise, on screen, show default background picture.
Aforesaid navigation display method, wherein, described locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction;
Described route data comprises: the geographic coordinate of more than one point on the navigation way;
Described display parameter comprise: screen size, screen center's point and engineer's scale;
Described according to described route data, described locator data and default display parameter, show that on screen route comprises: determine the geographic coordinate that described screen center's point is corresponding according to described locator data, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of described screen center's point and described screen size and engineer's scale, mate according to the geographic coordinate that point is corresponding more than on the geographic coordinate of more than one point on the navigation way in the described route data and the described screen, on screen, show route.
Aforesaid navigation display method, wherein, described locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction;
Described map datum comprises: the geographic object information of the geographic coordinate of more than one point and this geographic coordinate correspondence;
Described display parameter comprise: screen size, screen center's point and engineer's scale;
Described according to described map datum, described locator data and described default display parameter, displayed map comprises on screen: determine the geographic coordinate that described screen center's point is corresponding according to described locator data, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of described screen center's point and described screen size and described engineer's scale, mate displayed map on screen according to the geographic coordinate that point is corresponding more than on the geographic object information of the geographic coordinate of more than one point in the described map datum and this geographic coordinate correspondence and the described screen.
The present invention also provides a kind of Navigation Display Unit, comprising:
The global position system GPS module is used to obtain locator data;
Mixed-media network modules mixed-media is used to obtain route data;
The locating and displaying module is used for showing the position location according to described locator data and default display parameter on screen;
The route display module is used for showing route according to described route data, described locator data and described default display parameter on screen;
Screen is used for the control display image according to locating and displaying module and/or route display module.
Aforesaid Navigation Display Unit, wherein, described mixed-media network modules mixed-media also is used to obtain map datum;
Described Navigation Display Unit also comprises:
Judge module is used to judge whether that success obtains map datum, if, start map display module, otherwise, the background display module started;
Map display module is used for according to described map datum, described locator data and default display parameter, displayed map on screen;
The background display module is used for showing default background picture on screen;
Described screen also is used for the control display image of display module according to the map and/or background display module.
Aforesaid Navigation Display Unit, wherein, described locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction;
Described route data comprises: the geographic coordinate of more than one point on the navigation way;
Described display parameter comprise: screen size, screen center's point and engineer's scale;
Described route display module specifically is used for determining the geographic coordinate that described screen center's point is corresponding according to described locator data, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of described screen center's point and described screen size and described engineer's scale, mate according to the geographic coordinate that point is corresponding more than on the geographic coordinate of more than one point on the navigation way in the described route data and the described screen, on screen, show route.
Aforesaid Navigation Display Unit, wherein, described locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction;
Described map datum comprises: the geographic object information of the geographic coordinate of more than one point and this geographic coordinate correspondence;
Described display parameter comprise: screen size, screen center's point and engineer's scale;
Described map display module specifically is used for determining the geographic coordinate that described screen center's point is corresponding according to described locator data, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of described screen center's point and described screen size and described engineer's scale, mate displayed map on screen according to the geographic coordinate that point is corresponding more than on the geographic object information of the geographic coordinate of more than one point in the described map datum and this geographic coordinate correspondence and the described screen.
As shown from the above technical solution, the present invention is by obtaining locator data and route data, show the position location according to locator data, show route according to route data, locator data and default display parameter, and needn't be as existing navigation display method according to the map data show position location and route.Therefore, adopt navigation display method of the present invention and device, needn't rely on map datum and show route and position location, thereby in the time can't obtaining map datum, still can correctly show route and position location, improved the accuracy that navigation shows.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of the embodiment of the invention one navigation display method;
Fig. 2 is the process flow diagram of the embodiment of the invention two navigation display methods;
Fig. 3 is the structural representation of the Navigation Display Unit of the embodiment of the invention three.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
According to conventional online formula airmanship, the geographic range that comprises in the route data is greater than the geographic range that comprises in the map datum, for example, first place and second place are at a distance of 100 kilometers, when adopting the guider inquiry to go to the route in second place in first place, comprise the geographic coordinate of the more than one point on the route from first place to second place in the accessed route data.And only be included near the geography information of the specified scope current location in the map datum, it is the center that this specified scope is generally with the current location, with the distance to a declared goal is the circle of radius, or be the rectangle of the length of side with the distance to a declared goal, generally speaking, in order to clearly illustrate the geographic object on the map, this distance to a declared goal generally only is hundreds of rice or one to two km.Be example still, only comprise near the interior geography information of an about kilometer range first place in the map datum that obtained this moment,, obtain new map datum according to the position after moving in real time along with moving of guider to adopt the guider inquiry in first place.Therefore, when a certain moment network interrupts, can't get access to current map datum, still, get access to the route data of first place this moment to second place.The embodiment of the invention proposes a kind of navigation display method according to above-mentioned technical characterictic, when interrupting causing obtaining map datum owing to network, can correctly show route and position location on screen, improves the accuracy that navigation shows.
Fig. 1 is the process flow diagram of the embodiment of the invention one navigation display method.As shown in Figure 1, this navigation display method comprises the steps.
Step 101: obtain locator data and route data.
In this step, obtain locator data from gps satellite by the GPS receiver; Obtain route data by the network receiving terminal from the webserver.Particularly, locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction; Route data comprises: the geographic coordinate of more than one point on the navigation way, the one group orderly point of above-mentioned more than one point for choosing successively on navigation way is linked to be curve by this point orderly more than one, with this curve representation navigation way.
Step 102:, on screen, show the position location according to locator data and default display parameter.
Particularly, in this step, the position location is presented at the intermediate point of screen.Default display parameter comprise: screen size, screen center's point and engineer's scale.
Step 103:, on screen, show route according to route data, locator data and default display parameter.
In this step, concrete grammar is: at first, determine the geographic coordinate that screen center's point is corresponding according to locator data, promptly with the geographic coordinate of current position location in the locator data geographic coordinate as screen center point correspondence.For example, locator data shows that the geographic coordinate of current position location is: north latitude 39.90912389 ", east longitude 116.479275 ", determine that then the geographic coordinate of screen center's shop correspondence is a north latitude 39.90912389 " and, east longitude 116.479275 ".Then, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of screen center's point and screen size and engineer's scale.For example, screen size is for long 20 centimetres, and is wide 10 centimetres, engineer's scale is 1: 1000, then can determine the particular geographic coordinates of each point on the screen, for example, the geographic coordinate on four summits of screen edge is respectively: (39.91355722,116.475275), (39.90469056,116.475275), (39.91355722,116.483275), (39.90469056,116.483275).At last, mate, on screen, show route according to the geographic coordinate that point is corresponding more than on the geographic coordinate of more than one point on the navigation way in the route data and the screen.For example, route is to due east direction straight-line travelling 2 kms from current position location, comprise in the route data that then this is from the current location geographic coordinate of the more than one point on the straight line of 2 kms eastwards, respectively according to the geographic coordinate of each point on the route, mate in the geographic coordinate that each point is corresponding on screen, mark the point on the screen identical, this route can be presented on the screen with each some geographic coordinate on the route.
In the embodiment of the invention one, only obtain locator data and route data, when showing the position location, show according to locator data and default display parameter, and needn't be as existing navigation display method, the geographic coordinate in the data shows the position location according to the map; And, when showing route, show according to route data, locator data and default display parameter, and needn't be as existing navigation display method, the geographic coordinate in the data shows route according to the map.Therefore, adopt the navigation display method of the embodiment of the invention one, needn't rely on map datum and show route and position location, thereby in the time can't obtaining map datum, still can correctly show route and position location, improved the accuracy that navigation shows.
Fig. 2 is the process flow diagram of the embodiment of the invention two navigation display methods.As shown in Figure 2, this method may further comprise the steps.
Step 201: obtain locator data and route data.
In this step, obtain locator data from gps satellite by the GPS receiver; Obtain route data by the network receiving terminal from the webserver.Particularly, this locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction; This route data comprises: the geographic coordinate of more than one point on the navigation way, the orderly point of this more than one point for choosing according to navigation way.
Step 202: obtain map datum.
In this step, obtain map datum from the webserver by the network receiving terminal.Particularly, this map datum comprises: the geographic object information of the geographic coordinate of more than one point and this geographic coordinate correspondence.
Step 203: judge whether that success obtains map datum, if, execution in step 204; Otherwise, execution in step 205.
Step 204: data, locator data and default display parameter according to the map, displayed map on screen.
In this step, default display parameter comprise: screen size, screen center's point and engineer's scale.The concrete grammar of this step is: at first, determine the geographic coordinate that screen center's point is corresponding according to locator data; Then, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of screen center's point and screen size and engineer's scale; At last, the geographic coordinate that point is corresponding more than on the geographic object information of the geographic coordinate of more than one point and this geographic coordinate correspondence and the screen in the data according to the map mates displayed map on screen.
Step 205: on screen, show default background picture.In this step, in Navigation Display Unit, set in advance background picture, this background picture can be the monochromatic picture of random color, also can be the picture that has cue mark, and this background picture is used for replacing in the time can't getting access to map datum map to show.
Step 206:, on screen, show the position location according to locator data and default display parameter.
Particularly, in this step, the position location is presented at the intermediate point of screen.Default display parameter comprise: screen size, screen center's point and engineer's scale.
Step 207:, on screen, show route according to route data, locator data and default display parameter.
In this step, concrete grammar is: at first, determine the geographic coordinate that screen center's point is corresponding according to locator data; Then, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of screen center's point and screen size and engineer's scale; At last, mate, on screen, show route according to the geographic coordinate that point is corresponding more than on the geographic coordinate of more than one point on the navigation way in the route data and the screen.
In the above-mentioned steps of the embodiment of the invention two, require step 206 and step 207 after step 201, to carry out, and require step 204 after step 203, to carry out, do not limit for other step execution sequence.
In the embodiment of the invention two, not only show route data and position location by locator data and the route data of obtaining, and obtain map datum, and judge whether successfully obtaining map datum, when successfully getting access to map datum, displayed map, the then comprehensive full detail of displayed map, route and current location on screen this moment; In the time can't successfully getting access to map datum, replace map to show with the background picture that sets in advance, further improved the accuracy that navigation shows.
Fig. 3 is the structural representation of the Navigation Display Unit of the embodiment of the invention three.As shown in Figure 3, this Navigation Display Unit comprises at least: GPS module 31, mixed-media network modules mixed-media 32, locating and displaying module 33, route display module 34 and screen 35.Further, this Navigation Display Unit can also comprise: judge module 36, map display module 37 and background display module 38.
Wherein, GPS module 31 is obtained locator data and is sent locating and displaying module 33 to.Particularly, GPS module 31 is obtained locator data by the GPS receiver from gps satellite, and this GPS receiver can be positioned at GPS module 31, also can independent setting beyond GPS module 31.
Mixed-media network modules mixed-media 32 obtains route data and sends route display module 34 to.Further, mixed-media network modules mixed-media 32 also obtains map datum and sends judge module 36 to and map display module 37.Particularly, mixed-media network modules mixed-media 32 obtains route data and/or map datum by the network receiving terminal from the webserver, and this network receiving terminal can be positioned at mixed-media network modules mixed-media 32, also can independent setting beyond mixed-media network modules mixed-media 32.
Locating and displaying module 33 receives locator data from GPS module 31, according to locator data and default display parameter, shows the position location on screen.Locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction.Default display parameter comprise: screen size, screen center's point and engineer's scale.
In the embodiment of the invention three, obtain locator data and route data by GPS module 31 and mixed-media network modules mixed-media 32 respectively, show the position location by locating and displaying module 33 according to locator data and default display parameter, pass course display module 34 shows route according to locator data, route data and default display parameter, therefore needn't rely on map datum shows route data and position location, thereby in the time can't obtaining map datum, still can correctly show route data and position location, improve the accuracy that navigation shows.Further, mixed-media network modules mixed-media 32 obtains map datum, whether successfully obtains map datum by 36 pairs of judge modules and judges, when successfully obtaining map datum, not only shows route and position location, and displayed map; In the time can't successfully obtaining map datum, replace map to show, thereby improved the accuracy that navigation shows more with default picture.
Need to prove: for aforesaid each method embodiment, for simple description, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the instructions all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, do not have the part that describes in detail among certain embodiment, can be referring to the associated description of other embodiment.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a navigation display method is characterized in that, comprising:
Obtain locator data and route data;
According to described locator data and default display parameter, on screen, show the position location;
According to described route data, described locator data and described default display parameter, on screen, show route.
2. navigation display method according to claim 1 is characterized in that, also comprises:
Obtain map datum;
Judge whether that success obtains map datum, if, according to described map datum, described locator data and default display parameter, displayed map on screen; Otherwise, on screen, show default background picture.
3. navigation display method according to claim 1 and 2 is characterized in that,
Described locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction;
Described route data comprises: the geographic coordinate of more than one point on the navigation way;
Described display parameter comprise: screen size, screen center's point and engineer's scale;
Described according to described route data, described locator data and default display parameter, show that on screen route comprises: determine the geographic coordinate that described screen center's point is corresponding according to described locator data, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of described screen center's point and described screen size and engineer's scale, mate according to the geographic coordinate that point is corresponding more than on the geographic coordinate of more than one point on the navigation way in the described route data and the described screen, on screen, show route.
4. navigation display method according to claim 2 is characterized in that,
Described locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction;
Described map datum comprises: the geographic object information of the geographic coordinate of more than one point and this geographic coordinate correspondence;
Described display parameter comprise: screen size, screen center's point and engineer's scale;
Described according to described map datum, described locator data and described default display parameter, displayed map comprises on screen: determine the geographic coordinate that described screen center's point is corresponding according to described locator data, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of described screen center's point and described screen size and described engineer's scale, mate displayed map on screen according to the geographic coordinate that point is corresponding more than on the geographic object information of the geographic coordinate of more than one point in the described map datum and this geographic coordinate correspondence and the described screen.
5. a Navigation Display Unit is characterized in that, comprising:
The global position system GPS module is used to obtain locator data;
Mixed-media network modules mixed-media is used to obtain route data;
The locating and displaying module is used for showing the position location according to described locator data and default display parameter on screen;
The route display module is used for showing route according to described route data, described locator data and described default display parameter on screen;
Screen is used for the control display image according to locating and displaying module and/or route display module.
6. Navigation Display Unit according to claim 5 is characterized in that,
Described mixed-media network modules mixed-media also is used to obtain map datum;
Described Navigation Display Unit also comprises:
Judge module is used to judge whether that success obtains map datum, if, start map display module, otherwise, the background display module started;
Map display module is used for according to described map datum, described locator data and default display parameter, displayed map on screen;
The background display module is used for showing default background picture on screen;
Described screen also is used for the control display image of display module according to the map and/or background display module.
7. according to claim 5 or 6 described Navigation Display Units, it is characterized in that,
Described locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction;
Described route data comprises: the geographic coordinate of more than one point on the navigation way;
Described display parameter comprise: screen size, screen center's point and engineer's scale;
Described route display module specifically is used for determining the geographic coordinate that described screen center's point is corresponding according to described locator data, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of described screen center's point and described screen size and described engineer's scale, mate according to the geographic coordinate that point is corresponding more than on the geographic coordinate of more than one point on the navigation way in the described route data and the described screen, on screen, show route.
8. Navigation Display Unit according to claim 6 is characterized in that,
Described locator data comprises: the geographic coordinate of the current position location of navigation terminal, the translational speed of navigation terminal and moving direction;
Described map datum comprises: the geographic object information of the geographic coordinate of more than one point and this geographic coordinate correspondence;
Described display parameter comprise: screen size, screen center's point and engineer's scale;
Described map display module specifically is used for determining the geographic coordinate that described screen center's point is corresponding according to described locator data, determine on the screen the corresponding geographic coordinate of point more than according to the corresponding geographic coordinate of described screen center's point and described screen size and described engineer's scale, mate displayed map on screen according to the geographic coordinate that point is corresponding more than on the geographic object information of the geographic coordinate of more than one point in the described map datum and this geographic coordinate correspondence and the described screen.
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