CN101619987A - Positioning method, positioning device, navigation path computing method and navigation path computing device - Google Patents
Positioning method, positioning device, navigation path computing method and navigation path computing device Download PDFInfo
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Abstract
The invention provides a positioning method, a positioning device, a navigation path computing method and a navigation path computing device, belonging to the technical field of navigation positioning and aiming at overcoming the shortage that the definite position of a user can not be accurately displayed by the prior navigation path computing method when the user drives a car on special road sections, i.e. a viaduct, and the like. The positioning method comprises the following steps: searching roads passing a current located region; sorting the searched roads according to road types, generating and outputting a road type list; receiving a road type selection order, and outputting a road name list; receiving the road type selection order, and outputting position coordinates of road sections of selected roads positioned in the current located region. The invention also provides the positioning device, the navigation path computing method and the navigation path computing device. The technical scheme can provide the road types and the road names of all the roads around a current position and precisely determine the current located position according to the selection of the user.
Description
Technical field
The present invention relates to the navigator fix technology, more particularly, relate to a kind of localization method and device and guidance path computing method and device.
Background technology
The Vehicular navigation technology is GPS (Global Positioning System, GPS) important branch of technology.Principle of work based on the onboard navigation system of this technology is, vehicle mounted guidance terminal receives the position coordinates that at least 3 satellites transmitted in earth-circling 24 gps satellites, the position coordinates of putting down in writing in the electronic chart that itself and terminal self are stored mates, and determines the accurate position of navigation object in electronic chart of this terminal of lift-launch with this.
As a critical function of Vehicular navigation terminal, the guidance path computing function can be calculated guidance path fast according to the origin and the destination information of user's input, and guidance path guiding user leaves for the destination from the origin according to this.
Yet in real life, because there is error in gps signal, so the user will be difficult to the definite position of correct explicit user when driving on special road sections such as overpass.Especially, when the user calculates guidance path with this position as the origin, usually cause the guidance path miscount, cause the user to be misled, use very inconvenience.
Therefore, need a kind of guidance path numerical procedure, can effectively solve the above-mentioned defective that exists among the existing guidance path computing method.
Summary of the invention
The technical problem to be solved in the present invention is, at existing guidance path computing method correct defective of explicit user accurate location when the user drives on special road sections such as overpass, provide a kind of localization method and device and guidance path computing method and device.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of localization method comprises:
S1, search road, the road that finds is classified, generate road-type list and output according to road type by way of current region;
S2, the order of reception road type selecting, the tabulation of output road name wherein comprises the road name that belongs to each road of selected road type in the road that finds;
S3, reception road select command are exported the position coordinates that selected road is positioned at the highway section of current region.
In localization method provided by the invention, before described step S1, described method also comprises:
S0, reception satellite navigation signals are determined current region in view of the above.
In localization method provided by the invention, described step S0 further comprises:
A, reception satellite navigation signals are determined current position coordinates in view of the above;
The signal accuracy and the current position coordinates of B, the described satellite navigation signals of foundation are determined current region.
In localization method provided by the invention, described road type comprises at least a among the following type:
Common road;
Highway;
Overpass.
The present invention also provides a kind of guidance path computing method, comprises according to origin position coordinates and destination locations coordinate Calculation guidance path, determines described origin position coordinates as follows:
S1, search road, the road that finds is classified, generate road-type list and output according to road type by way of current region;
S2, the order of reception road type selecting, the tabulation of output road name wherein comprises the road name that belongs to each road of selected road type in the road that finds;
S3, receive the road select command, export selected road and be positioned at the position coordinates in highway section of current region as the origin position coordinates.
The present invention also provides a kind of locating device, comprising:
Load module;
Output module;
Search module, be used for:
Search road, the road that finds is classified, generate road-type list and export by output module according to road type by way of current region;
Receive the order of road type selecting by load module,, wherein comprise the road name that belongs to each road of selected road type in the road that finds by the tabulation of output module output road name;
Receive the road select command by load module, export the position coordinates that selected road is positioned at the highway section of current region by output module.
In locating device provided by the invention, also comprise:
Locating module is used to receive satellite navigation signals, determines current region in view of the above.
In locating device provided by the invention,
Described locating module is further used for:
Receive satellite navigation signals, determine current position coordinates in view of the above;
Signal accuracy and current position coordinates according to described satellite navigation signals are determined current region.
In locating device provided by the invention, described road type comprises at least a among the following type:
Common road;
Highway;
Overpass.
The present invention also provides a kind of guidance path calculation element, is used for comprising according to origin position coordinates and destination locations coordinate Calculation guidance path:
Locating device comprises:
Load module;
Output module;
Search module, be used for:
Search road, the road that finds is classified, generate road-type list and export by output module according to road type by way of current region;
Receive the order of road type selecting by load module,, wherein comprise the road name that belongs to each road of selected road type in the road that finds by the tabulation of output module output road name;
Receive the road select command by load module, export the position coordinates that selected road is positioned at the highway section of current region by output module.
Implement technical scheme of the present invention, has following beneficial effect: when the user drives on special road sections such as overpass, technical scheme provided by the invention can provide the current location road type and the road name of all roads on every side, and accurately determines current position by user's selection.Therefore, instant user is in complicated highway section, and technical scheme provided by the invention also can accurately be determined the current position of user.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the process flow diagram according to the localization method of a preferred embodiment of the present invention;
Fig. 2 is the logical organization synoptic diagram according to the locating device of a preferred embodiment 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.
The invention provides a kind of localization method and device and guidance path computing method and device, when the user drives on special road sections such as overpass, technical scheme provided by the invention can provide the current location road type and the road name of all roads on every side, and accurately determines current position by user's selection.Therefore, instant user is in complicated highway section, and technical scheme provided by the invention also can accurately be determined the current position of user.Below just come technical scheme provided by the invention is described in detail with specific embodiment in conjunction with the accompanying drawings.
Fig. 1 is the process flow diagram according to the localization method 100 of a preferred embodiment of the present invention.As shown in Figure 1, localization method 100 starts from step 102.
Subsequently,, receive satellite navigation signals, determine current position in view of the above, and determine current region with this at next step 104.As indicated above, because there is error in satellite navigation signals, therefore technical scheme provided by the invention is at first determined current position roughly according to satellite navigation signals, and is the center, is that radius delimited current region with the distance that sets in advance with current position.
In the specific implementation process, the distance that sets in advance mentioned above can be set flexibly according to the precision of satellite navigation signals, can determine current region according to the precision and the current position of satellite navigation signals.
Subsequently,, search road, the road that finds is classified, generate road-type list and output according to road type by way of current region at next step 106.In the specific implementation process, the mode of the common factor between the coordinate set that can be by calculating every road and the coordinate set of current region judges that whether this road is by way of current region.Occur simultaneously if exist, this road then is described,, illustrate that then this road is not by way of this zone if there is not common factor by way of this zone.
Finding after the road of current region, localization method provided by the invention also will be classified to all roads that find according to road type, and generate road-type list and output.For example, if the road that finds belongs to three types of common highway section, fastlink and overpass respectively, then will comprise common highway section, fastlink and three kinds of road types of overpass in Shu Chu the road-type list.
Subsequently, at next step 108, receive the order of road type selecting, the tabulation of output road name wherein comprises the road name that belongs to each road of selected road type in the road that finds.In the specific implementation process, after showing road-type list, during road type among the user clicks road-type list, the road type select command is sent in triggering.
Subsequently, will in all roads that step 106 finds, search the road that belongs to this road type, the title of these roads will be added among the road name tabulation according to the road type of this road type select command appointment, and the tabulation of output road name.
Subsequently,, receive the road select command, export the position coordinates that selected road is positioned at the highway section of current region at next step 110, with this as current position coordinate.In the specific implementation process, after showing the road name tabulation, during road name among the user clicks the road name tabulation, the road select command is sent in triggering.
Subsequently, the position coordinates and the output in the highway section of road within current region of this road select command appointment will be calculated.In the specific implementation process, the mode of the common factor between the coordinate set that can be by calculating selected road and the coordinate set of current region is determined the position coordinates in the highway section of selected road within current region.In the specific implementation process, longer if selected road is in the distance in the highway section within the current region, then can select the position coordinates of the center in this highway section as this highway section.
At last, method 100 ends at step 112.
In another embodiment of the present invention, a kind of guidance path computing method also are provided, these guidance path computing method comprise according to origin position coordinates and destination locations coordinate Calculation guidance path.Wherein, as the origin position coordinates, then can determine according to above-described localization method 100 by current position coordinate with current position coordinate for these guidance path computing method.
The present invention also provides a kind of locating device, below just be described in greater detail in conjunction with Fig. 2.
Fig. 2 is the logical organization synoptic diagram according to the locating device 200 of a preferred embodiment of the present invention.As shown in Figure 2, locating device 200 provided by the invention comprises load module 202, output module 204, locating module 206 and searches module 208.
Locating module 206 is used to receive satellite navigation signals, determines current region in view of the above.As indicated above, because there is error in satellite navigation signals, so locating module 206 at first determines current position roughly according to satellite navigation signals, and is the center, is that radius delimited current region with the distance that sets in advance with current position.
In the specific implementation process, the distance that sets in advance mentioned above can be set flexibly according to the precision of satellite navigation signals, can determine current region according to the precision and the current position of satellite navigation signals.
Finding after the road of current region, searching module 208 and also will classify to all roads that find, and generating road-type list according to road type.For example, if the road that finds belongs to three types of common highway section, fastlink and overpass respectively, then will comprise common highway section, fastlink and three kinds of road types of overpass in the road-type list of output module 204 outputs.
In the specific implementation process, after showing road-type list, during road type among the user clicks road-type list, the road type select command is sent in triggering.
Subsequently, search module 208 and will in all roads that step 106 finds, search the road that belongs to this road type according to the road type of this road type select command appointment, the title of these roads is added among the road name tabulation, and by output module 204 output road names tabulations.
Subsequently, search the position coordinates that module 208 will be calculated the highway section of road within current region of this road select command appointment.In the specific implementation process, the mode of the common factor between the coordinate set that can be by calculating selected road and the coordinate set of current region is determined the position coordinates in the highway section of selected road within current region.In the specific implementation process, longer if selected road is in the distance in the highway section within the current region, then can select the position coordinates of the center in this highway section as this highway section.
In another embodiment of the present invention, a kind of guidance path calculation element also is provided, this guidance path calculation element is used for according to origin position coordinates and destination locations coordinate Calculation guidance path.Wherein, as the origin position coordinates, then can determine according to above-described locating device 200 by current position coordinate with current position coordinate for this guidance path calculation element.
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 (10)
1, a kind of localization method is characterized in that, comprising:
S1, search road, the road that finds is classified, generate road-type list and output according to road type by way of current region;
S2, the order of reception road type selecting, the tabulation of output road name wherein comprises the road name that belongs to each road of selected road type in the road that finds;
S3, reception road select command are exported the position coordinates that selected road is positioned at the highway section of current region.
2, localization method according to claim 1 is characterized in that, before described step S1, described method also comprises:
S0, reception satellite navigation signals are determined current region in view of the above.
3, localization method according to claim 2 is characterized in that, described step S0 further comprises:
A, reception satellite navigation signals are determined current position coordinates in view of the above;
The signal accuracy and the current position coordinates of B, the described satellite navigation signals of foundation are determined current region.
According to each described localization method in the claim 1 to 3, it is characterized in that 4, described road type comprises at least a among the following type:
Common road;
Highway;
Overpass.
5, a kind of guidance path computing method comprise according to origin position coordinates and destination locations coordinate Calculation guidance path, it is characterized in that, determine described origin position coordinates as follows:
S1, search road, the road that finds is classified, generate road-type list and output according to road type by way of current region;
S2, the order of reception road type selecting, the tabulation of output road name wherein comprises the road name that belongs to each road of selected road type in the road that finds;
S3, receive the road select command, export selected road and be positioned at the position coordinates in highway section of current region as the origin position coordinates.
6, a kind of locating device is characterized in that, comprising:
Load module;
Output module;
Search module, be used for:
Search road, the road that finds is classified, generate road-type list and export by output module according to road type by way of current region;
Receive the order of road type selecting by load module,, wherein comprise the road name that belongs to each road of selected road type in the road that finds by the tabulation of output module output road name;
Receive the road select command by load module, export the position coordinates that selected road is positioned at the highway section of current region by output module.
7, locating device according to claim 6 is characterized in that, also comprises:
Locating module is used to receive satellite navigation signals, determines current region in view of the above.
8, locating device according to claim 7 is characterized in that,
Described locating module is further used for:
Receive satellite navigation signals, determine current position coordinates in view of the above;
Signal accuracy and current position coordinates according to described satellite navigation signals are determined current region.
According to each described localization method in the claim 6 to 8, it is characterized in that 9, described road type comprises at least a among the following type:
Common road;
Highway;
Overpass.
10, a kind of guidance path calculation element is used for it is characterized in that according to origin position coordinates and destination locations coordinate Calculation guidance path, comprising:
Locating device comprises:
Load module;
Output module;
Search module, be used for:
Search road, the road that finds is classified, generate road-type list and export by output module according to road type by way of current region;
Receive the order of road type selecting by load module,, wherein comprise the road name that belongs to each road of selected road type in the road that finds by the tabulation of output module output road name;
Receive the road select command by load module, export the position coordinates that selected road is positioned at the highway section of current region by output module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910109196A CN101619987A (en) | 2009-07-31 | 2009-07-31 | Positioning method, positioning device, navigation path computing method and navigation path computing device |
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| CN200910109196A CN101619987A (en) | 2009-07-31 | 2009-07-31 | Positioning method, positioning device, navigation path computing method and navigation path computing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246650A (en) * | 2012-02-01 | 2013-08-14 | 北京四维图新科技股份有限公司 | Road logic model and manufacture method thereof |
| CN103528589A (en) * | 2012-07-06 | 2014-01-22 | 昆达电脑科技(昆山)有限公司 | Navigation road locking method and navigation system |
-
2009
- 2009-07-31 CN CN200910109196A patent/CN101619987A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246650A (en) * | 2012-02-01 | 2013-08-14 | 北京四维图新科技股份有限公司 | Road logic model and manufacture method thereof |
| CN103528589A (en) * | 2012-07-06 | 2014-01-22 | 昆达电脑科技(昆山)有限公司 | Navigation road locking method and navigation system |
| CN103528589B (en) * | 2012-07-06 | 2016-02-03 | 昆达电脑科技(昆山)有限公司 | Navigation lock path method and navigational system thereof |
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Application publication date: 20100106 |