CN101975578A - Navigation method and device - Google Patents
Navigation method and device Download PDFInfo
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- CN101975578A CN101975578A CN2010102887327A CN201010288732A CN101975578A CN 101975578 A CN101975578 A CN 101975578A CN 2010102887327 A CN2010102887327 A CN 2010102887327A CN 201010288732 A CN201010288732 A CN 201010288732A CN 101975578 A CN101975578 A CN 101975578A
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Abstract
The invention provides a navigation method, comprising the following steps of: acquiring latitude and longitude coordinates and elevation information of a geographical object; carrying out three-dimensional calculation according to the latitude and longitude coordinates and the elevation information of the geographical object to obtain a three-dimensional map; obtaining latitude and longitude coordinates and elevation information of an object terminal by using a GPS (Global Positioning System); carrying out three-dimensional calculation according to the latitude and longitude coordinates and the elevation information of the object terminal; and displaying the object terminal on the three-dimensional map. The invention also provides a navigation device. With the navigation method and device, when the object terminal is positioned in a three-dimensional road network, the invention can accurately know all levels of roads in the three-dimensional road network and the level position where the road is positioned and can improve the navigation accuracy.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of air navigation aid and device.
Background technology
Along with popularizing and the construction of road of automobile, intercity remote traffic is frequent day by day, because people are unfamiliar with for remote route usually, has therefore produced a large amount of road guide demands.And along with the development of mobile communication technology, GPS (Global Positioning System is called for short GPS) airmanship is arisen at the historic moment.
The ultimate principle of GPS is: the satellite of measuring known location is to the distance between the target receiver, and the measurement result of comprehensive multi-satellite is calculated then, obtains the particular location of this target.In existing GPS navigation technology, in guider, set in advance two-dimensional map, guider utilizes GPS to obtain the latitude and longitude coordinates of self and is labeled on the map, to realize navigation.
Existing guider adopts the two dimensional navigation method, the position that can only in plane map, show self, when using existing guider in the complicated crossings on different level road network in mountain road or city, guider is with the demonstration that overlaps of the road of the differing heights of same planimetric position, the user can't be known road and the height and position of self, therefore can't select correct route from multi-level three-dimensional road network, the accuracy of navigation is low.
Summary of the invention
The invention provides a kind of air navigation aid,, improve the accuracy of navigation in order to solve defective of the prior art.
The present invention also provides a kind of guider, in order to solve defective of the prior art, improves the accuracy of navigation.
The invention provides a kind of air navigation aid, comprising:
Gather the latitude and longitude coordinates and the elevation information of one or more geographic object;
Latitude and longitude coordinates and elevation information according to described one or more geographic object carry out three-dimensional computing, obtain three-dimensional map;
Adopt global position system GPS to obtain the latitude and longitude coordinates and the elevation information of target terminal;
Latitude and longitude coordinates and elevation information according to described target terminal carry out three-dimensional computing, show described target terminal on described three-dimensional map.
Aforesaid air navigation aid, wherein, the latitude and longitude coordinates and the elevation information of the one or more geographic object of described collection comprise:
Carry out the GPS location in the position of described one or more geographic object respectively, obtain the latitude and longitude coordinates and the elevation information of described one or more geographic object.
Aforesaid air navigation aid, wherein, the latitude and longitude coordinates and the elevation information of the one or more geographic object of described collection comprise:
Carry out the GPS location in primary importance, obtain the latitude and longitude coordinates and the elevation information of described primary importance;
Measure the plan range and the height distance of described primary importance and described one or more geographic object;
Calculate according to the latitude and longitude coordinates of described primary importance and the plan range and the height distance of elevation information and described primary importance and described one or more geographic object, obtain the latitude and longitude coordinates and the elevation information of described one or more geographic object.
Aforesaid air navigation aid, wherein, described latitude and longitude coordinates and elevation information according to described one or more geographic object carries out three-dimensional computing, obtains three-dimensional map and comprises:
Latitude and longitude coordinates and elevation information according to described one or more geographic object obtain one or more three-dimensional coordinate points;
According to described one or more three-dimensional coordinate points, obtain and the polygonal shape that shows spheres intersect;
The two-dimensional coordinate system of the spot projection of described polygonal shape to the display screen correspondence will be formed.
Aforesaid air navigation aid wherein, describedly also comprises show described target terminal on described three-dimensional map after:
Latitude and longitude coordinates and elevation information according to described target terminal and described geographic object obtain the geographic object that is less than or equal to setpoint distance with the distance of target terminal, and are presented on the described three-dimensional map.
The present invention also provides a kind of guider, comprising:
Information acquisition unit is used to gather the latitude and longitude coordinates and the elevation information of geographic object, and adopts global position system GPS to obtain the latitude and longitude coordinates and the elevation information of target terminal;
Computing drawing unit, be used for carrying out three-dimensional computing according to the latitude and longitude coordinates and the elevation information of described geographic object, obtain three-dimensional map, and carry out three-dimensional computing, on described three-dimensional map, show described target terminal according to the latitude and longitude coordinates and the elevation information of described target terminal.
Aforesaid guider, wherein, described information acquisition unit specifically is used for carrying out the GPS location in the position of described geographic object, obtains the latitude and longitude coordinates and the elevation information of described geographic object.
Aforesaid guider, wherein, described information acquisition unit specifically is used for carrying out the GPS location in primary importance, obtain the latitude and longitude coordinates and the elevation information of described primary importance, receive the described primary importance of measurement acquisition and the plan range and the height distance of described geographic object, calculate according to the latitude and longitude coordinates of described primary importance and the plan range and the height distance of elevation information and described primary importance and described geographic object, obtain the latitude and longitude coordinates and the elevation information of described collection geographic object.
Aforesaid guider, wherein, described computing drawing unit specifically is used for latitude and longitude coordinates and the elevation information according to described one or more geographic object, obtains one or more three-dimensional coordinate points; According to described one or more three-dimensional coordinate points, obtain and the polygonal shape that shows spheres intersect; The two-dimensional coordinate system of the spot projection of described polygonal shape to the display screen correspondence will be formed.
Aforesaid guider wherein, also comprises:
Search unit is used for latitude and longitude coordinates and elevation information according to described target terminal and described geographic object, obtains the geographic object that is less than or equal to setpoint distance with the distance of described target terminal;
The geographic object that described computing drawing unit also is used for the distance with described target terminal is less than or equal to setpoint distance is presented at three-dimensional map emphatically.
As shown from the above technical solution, latitude and longitude coordinates and the elevation information of air navigation aid of the present invention by obtaining geographic object and target terminal, and obtain three-dimensional map and target terminal is presented in this three-dimensional map by three-dimensional computing, when target terminal is arranged in three-dimensional road network, can accurately know each layer road in the three-dimensional road network and the level that self is arranged in three-dimensional road network, thereby road is made correct selection, improved the accuracy of navigation.
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 air navigation aid of the embodiment of the invention one;
Fig. 2 is the structural representation of the guider of the embodiment of the invention two.
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.
Fig. 1 is the process flow diagram of the air navigation aid of the embodiment of the invention one.As shown in Figure 1, this method may further comprise the steps.
Step 101: latitude and longitude coordinates and the elevation information of gathering one or more geographic object.
In this step, geographic object is the things that need draw or mark in map, when drawing this things, a plurality of monumented points can be set on this things, monumented point is measured, therefore geographic object can be this monumented point also, include but not limited to the relevant things of physical environments such as object that urban transportations such as road, bridge, building are relevant and mountain peak, Plain, river, lake with and monumented point.Can adopt several different methods to gather the latitude and longitude coordinates and the elevation information of geographic object in this step.For example, can adopt instrument of surveying and mapping to measure, also can carry out the GPS location, obtain the latitude and longitude coordinates and the elevation information of this geographic object in the position at geographic object place in the position at geographic object place.In the GPS position fixing process, satellite comprises multiple information in the signal that target terminal returns, and the present invention selects latitude and longitude coordinates and elevation information from multiple information, uses in the process of navigation.Gathering the latitude and longitude coordinates of geographic object and a kind of preferred implementation of elevation information is: at first, carry out the GPS location in primary importance, obtain the latitude and longitude coordinates and the elevation information of primary importance, then, measure the plan range and the height distance of primary importance and geographic object, at last, calculate according to the latitude and longitude coordinates of primary importance and the plan range and the height distance of elevation information and primary importance and described geographic object, obtain to gather the latitude and longitude coordinates and the elevation information of geographic object.Wherein, for making the user easy to use in actual applications, the plan range of above-mentioned measurement primary importance and geographic object and height distance can be finished by user's range estimation, for example, certain mountain-climbing fan is along the lake of finding can be used as water head site in the hill path mountain-climbing process, then can be with the position, hill path as primary importance, carry out the GPS location in this position, obtain the latitude and longitude coordinates and the elevation information of position, hill path, range estimation obtains the position in this lake and plan range and the height distance between this position, hill path then, obtains the latitude and longitude coordinates and the elevation information in this lake according to above distance calculation.Particularly, this mountain-climbing fan carries the guider of the air navigation aid that adopts the embodiment of the invention, adopt the latitude and longitude coordinates and the elevation information of the position, hill path at acquisition self place, GPS location, then, this mountain-climbing fan obtains the position in this lake and the plan range and the height distance of position, hill path by range estimation, demonstration according to the display screen of guider, according to the position, hill path, the plan range of the position in displaying ratio chi and this lake and position, hill path, on the display screen of guider, draw from the position, hill path according to the counterparty to extending a line segment, the length of this line segment is to should plan range, and the input height distance, import this position, lake with this.In this guider, calculate latitude and longitude coordinates and the elevation information that obtains this lake according to this straight line and height distance, specifically comprise following process.At first, obtain the known end points and the unknown end points of this line segment, wherein, known end points is the position, hill path, and unknown end points is the position, lake.Then, obtain the latitude and longitude coordinates and the elevation information of known end points.Next, according to latitude and longitude coordinates, line segment length and the displaying ratio chi of the known end points that obtains, obtain the latitude and longitude coordinates of unknown end points.At last, according to the elevation information of the known end points that obtains and the height distance of input, obtain the elevation information of unknown end points.So far, having finished the collection geographic object is the latitude and longitude coordinates and the elevation information in lake.
Step 102: latitude and longitude coordinates and elevation information according to one or more geographic object carry out three-dimensional computing, obtain three-dimensional map.
At first, latitude and longitude coordinates and elevation information according to above-mentioned one or more geographic object obtain one or more three-dimensional coordinate points.Then,, obtain and the polygonal shape that shows spheres intersect, promptly obtained three-dimensional map, geographic object is presented on the three-dimensional map according to above-mentioned one or more three-dimensional coordinate points.At last, the two-dimensional coordinate system of the spot projection of above-mentioned polygonal shape to the display screen correspondence will be formed, so that three-dimensional map is presented on the display screen of two dimension.
Still find that with certain mountain-climbing fan the lake is an example, carry out three-dimensional computing, then this lake can be presented on the three-dimensional map according to the latitude and longitude coordinates and the elevation information in this lake that collects in the step 101.
Step 103: adopt GPS to obtain the latitude and longitude coordinates and the elevation information of target terminal.
In this step, can set in advance timing cycle, regularly adopt the latitude and longitude coordinates and the elevation information of GPS acquisition target terminal according to this cycle.Also can be set to a second level or littler by above-mentioned timing cycle, adopt GPS to obtain the latitude and longitude coordinates and the elevation information of target terminal in real time.For example, in the process of driving, timing cycle is set to 5 minutes in advance, then per latitude and longitude coordinates and elevation information that obtained once this vehicle current time in 5 minutes, perhaps, timing cycle is set to 1 second in advance, and then per second obtains once the latitude and longitude coordinates and the elevation information of this vehicle current time, can realize obtaining in real time.
Before step 103, can also comprise that target terminal sends the step of location information request; Then in step 103,, adopt GPS to obtain the latitude and longitude coordinates and the elevation information of target terminal according to the target terminal position information request.
Step 104: latitude and longitude coordinates and elevation information according to target terminal carry out three-dimensional computing, display-object terminal on three-dimensional map.
In this step, the method of carrying out three-dimensional computing according to the latitude and longitude coordinates and the elevation information of geographic object in the concrete grammar that carries out three-dimensional computing according to the latitude and longitude coordinates of target terminal and elevation information and the step 102 is identical, only the latitude and longitude coordinates and the elevation information that the latitude and longitude coordinates and the elevation information of geographic object need be replaced with target terminal gets final product, and do not repeat them here.
Still find that with certain mountain-climbing fan the lake is an example,, this lake is presented on the three-dimensional map through step 102.Afterwards, near this mountain-climbing fan or other people are positioned at the lake during position, in step 103, obtain its latitude and longitude coordinates and elevation information, in step 104, on this three-dimensional map, then this mountain-climbing fan or other people can observe the position in self and lake on this three-dimensional map with the position display at this mountain-climbing fan or other people place.
And, after step 104, this air navigation aid can also may further comprise the steps: latitude and longitude coordinates and elevation information according to target terminal and geographic object, obtain the geographic object that is less than or equal to setpoint distance with the distance of target terminal, and it is presented on the three-dimensional map emphatically.In above-mentioned instantiation, pre-determine setpoint distance, this setpoint distance can be determined according to the actual requirements, with this mountain-climbing fan or other people latitude and longitude coordinates and elevation information, compare with the latitude and longitude coordinates and the elevation information of all geographic object, can get access to this lake and be less than or equal to setpoint distance apart from this mountain-climbing fan or other people distance, therefore, show this lake on three-dimensional map emphatically, this mountain-climbing fan or other people can observe the position in this lake from the three-dimensional map apparently.
Fig. 2 is the structural representation of the guider of the embodiment of the invention two.Embodiment one described air navigation aid can adopt embodiment two described guiders to finish.As shown in Figure 2, this guider comprises at least: information acquisition unit 21 and computing drawing unit 22.
Wherein, information acquisition unit 21 is gathered the latitude and longitude coordinates and the elevation information of one or more geographic object, and adopt GPS to obtain the latitude and longitude coordinates and the elevation information of target terminal, the latitude and longitude coordinates and the elevation information of geographic object and target terminal offered computing drawing unit 22.Particularly, information acquisition unit 21 is carried out the GPS location in the position of geographic object, obtains the latitude and longitude coordinates and the elevation information of geographic object.Perhaps, information acquisition unit 21 is carried out the GPS location in primary importance, obtain the latitude and longitude coordinates and the elevation information of primary importance, receive the primary importance of measurement acquisition and the plan range and the height distance of geographic object, calculate according to the latitude and longitude coordinates of primary importance and the plan range and the height distance of elevation information and primary importance and geographic object, obtain to gather the latitude and longitude coordinates and the elevation information of geographic object.
Further, this guider can also comprise search unit 23.Search unit 23 obtains the geographic object that is less than or equal to setpoint distance with the distance of target terminal according to from the target terminal of information acquisition unit 21 and the latitude and longitude coordinates and the elevation information of geographic object, and with this geographic object notice computing drawing unit 22.The geographic object that computing drawing unit 22 will be less than or equal to setpoint distance with the distance of target terminal is presented on the three-dimensional map emphatically.
Further, this guider can also comprise Database Unit 24.Database Unit 24 storages are from the geographic object of information acquisition unit 21 and/or the latitude and longitude coordinates and the elevation information of target terminal, computing drawing unit 22 reads the latitude and longitude coordinates and the elevation information of geographic object and/or target terminal by visit data library unit 24.Search unit 23 obtains the latitude and longitude coordinates and the elevation information of target terminal and geographic object by visit data library unit 24.
By above embodiment as seen, by latitude and longitude coordinates and the elevation information that obtains geographic object and target terminal, and obtain three-dimensional map and target terminal is presented in this three-dimensional map by three-dimensional computing, therefore, when target terminal is arranged in three-dimensional road network, can accurately know each layer road in the three-dimensional road network and the level that self is arranged in three-dimensional road network, thereby road is made correct selection, improve the accuracy of navigation.
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 (10)
1. an air navigation aid is characterized in that, comprising:
Gather the latitude and longitude coordinates and the elevation information of one or more geographic object;
Latitude and longitude coordinates and elevation information according to described one or more geographic object carry out three-dimensional computing, obtain three-dimensional map;
Adopt global position system GPS to obtain the latitude and longitude coordinates and the elevation information of target terminal;
Latitude and longitude coordinates and elevation information according to described target terminal carry out three-dimensional computing, show described target terminal on described three-dimensional map.
2. air navigation aid according to claim 1 is characterized in that, the latitude and longitude coordinates and the elevation information of the one or more geographic object of described collection comprise:
Carry out the GPS location in the position of described one or more geographic object respectively, obtain the latitude and longitude coordinates and the elevation information of described one or more geographic object.
3. air navigation aid according to claim 1 is characterized in that, the latitude and longitude coordinates and the elevation information of the one or more geographic object of described collection comprise:
Carry out the GPS location in primary importance, obtain the latitude and longitude coordinates and the elevation information of described primary importance;
Measure the plan range and the height distance of described primary importance and described one or more geographic object;
Calculate according to the latitude and longitude coordinates of described primary importance and the plan range and the height distance of elevation information and described primary importance and described one or more geographic object, obtain the latitude and longitude coordinates and the elevation information of described one or more geographic object.
4. air navigation aid according to claim 1 is characterized in that,
Described latitude and longitude coordinates and elevation information according to described one or more geographic object carries out three-dimensional computing, obtains three-dimensional map and comprises:
Latitude and longitude coordinates and elevation information according to described one or more geographic object obtain one or more three-dimensional coordinate points;
According to described one or more three-dimensional coordinate points, obtain and the polygonal shape that shows spheres intersect;
The two-dimensional coordinate system of the spot projection of described polygonal shape to the display screen correspondence will be formed.
5. air navigation aid according to claim 1 is characterized in that, describedly also comprises show described target terminal on described three-dimensional map after:
Latitude and longitude coordinates and elevation information according to described target terminal and described geographic object obtain the geographic object that is less than or equal to setpoint distance with the distance of target terminal, and are presented on the described three-dimensional map.
6. a guider is characterized in that, comprising:
Information acquisition unit is used to gather the latitude and longitude coordinates and the elevation information of one or more geographic object, and adopts global position system GPS to obtain the latitude and longitude coordinates and the elevation information of target terminal;
Computing drawing unit, be used for carrying out three-dimensional computing according to the latitude and longitude coordinates and the elevation information of described one or more geographic object, obtain three-dimensional map, and latitude and longitude coordinates and elevation information according to described target terminal carry out three-dimensional computing, show described target terminal on described three-dimensional map.
7. guider according to claim 6 is characterized in that,
Described information acquisition unit specifically is used for carrying out the GPS location in the position of described geographic object, obtains the latitude and longitude coordinates and the elevation information of described geographic object.
8. guider according to claim 6 is characterized in that,
Described information acquisition unit specifically is used for carrying out the GPS location in primary importance, obtain the latitude and longitude coordinates and the elevation information of described primary importance, receive the described primary importance of measurement acquisition and the plan range and the height distance of described geographic object, calculate according to the latitude and longitude coordinates of described primary importance and the plan range and the height distance of elevation information and described primary importance and described geographic object, obtain the latitude and longitude coordinates and the elevation information of described collection geographic object.
9. guider according to claim 6 is characterized in that,
Described computing drawing unit specifically is used for latitude and longitude coordinates and the elevation information according to described one or more geographic object, obtains one or more three-dimensional coordinate points; According to described one or more three-dimensional coordinate points, obtain and the polygonal shape that shows spheres intersect; The two-dimensional coordinate system of the spot projection of described polygonal shape to the display screen correspondence will be formed.
10. guider according to claim 6 is characterized in that, also comprises:
Search unit is used for latitude and longitude coordinates and elevation information according to described target terminal and described one or more geographic object, obtains the geographic object that is less than or equal to setpoint distance with the distance of described target terminal;
The geographic object that described computing drawing unit also is used for the distance with described target terminal is less than or equal to setpoint distance is presented at three-dimensional map emphatically.
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| CN201010288732A CN101975578B (en) | 2010-09-20 | 2010-09-20 | Navigation method and device |
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| CN201010288732A CN101975578B (en) | 2010-09-20 | 2010-09-20 | Navigation method and device |
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