CN101782399A - Method and device for topologically partitioning road network in navigation electronic map - Google Patents
Method and device for topologically partitioning road network in navigation electronic map Download PDFInfo
- Publication number
- CN101782399A CN101782399A CN200910076794A CN200910076794A CN101782399A CN 101782399 A CN101782399 A CN 101782399A CN 200910076794 A CN200910076794 A CN 200910076794A CN 200910076794 A CN200910076794 A CN 200910076794A CN 101782399 A CN101782399 A CN 101782399A
- Authority
- CN
- China
- Prior art keywords
- road
- graticule mesh
- topological
- data
- grade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Navigation (AREA)
Abstract
The invention provides a method and a device for topologically partitioning a road network in a navigation electronic map, belonging to the technical field of navigation. The method comprises the following steps of: acquiring the original road network data of the road network in the navigation electronic map and partitioning the acquired original road network data into a plurality of grids; respectively setting the topological grades of roads in the grids according to the preset grade partitioning strategy; carrying out path extension from the roads with the low-topological grade on the boundaries of the core grids by using each grid as the core grid; obtaining topological extended partitions through other grids carrying out traversing path extension; and storing the road data in the core grids and recording the grid lists of the topological extended partitions in the extension data of the topological partitions through index data until all processes of acquiring the topological extended partitions by using the grids as the core grids are disposed. The invention can effectively reduce redundant data generated in the process of storing the road data in the navigation electronic map.
Description
Technical field
The invention belongs to field of navigation technology, relate in particular to the method and the device of topologically partitioning road network in a kind of map of navigation electronic.
Background technology
Along with the fast development that satellite navigation is used, map of navigation electronic is as the core ingredient in the whole navigation application system, more and more receives publicity and payes attention to.Good data form and data structuring model directly affect the level of application of map of navigation electronic.
The data volume of road network is often very huge in the existing map of navigation electronic, and the hardware environment of navigation application is limited, it is unpractical that the data of road network are all read in internal memory, therefore in Geographic Information System, but the applied topology partition method is divided into a plurality of districts with a bigger geographic area by the density of geographic position or road network, each district also can draw and be called a plurality of graticule mesh, wherein any one topological subregion is a core with several graticule mesh all, but also can carry out suitable expansion.Defined a kind of topological partition method in Kiwi (Japanese auto navigation physics compiled format) specification, the Kiwi specification is the auto navigation data standard that Japanese Kiwi alliance formulates.Kiwi comes organizing map by hierarchy, and logical organization and its physical store of this layer also interrelate, it can be done fast data and quote between different layers, be in the topological subregion of core promptly at any one net, in this subregion scope, can switch to last layer by tie point attribute with the upper strata road, owing to have a plurality of tie points, so this subregion is the polygonal region of a scope much larger than the core graticule mesh.Therefore in this partition model, the topological subregion of road network is not conventional rectangle, but polygon, thereby can cause the actual road net data of different topological section post storages to exist redundant.
In realizing process of the present invention, find that there are the following problems at least in the prior art: data redudancy is big in the existing data storage method, being in the prior art of representative with Kiwi, is the polygonal region of a scope much larger than the core graticule mesh with topological partition definition.And, the topology subregion need be stored the road data of expansion and the road data of core graticule mesh part simultaneously, because the road data meeting repeated storage of storage expansion, therefore just usually said data redundancy has increased the workload of maintainer in the maintenance process of map of navigation electronic.
Summary of the invention
In order to address the above problem, the purpose of this invention is to provide the method and the device of topologically partitioning road network in a kind of map of navigation electronic, can effectively reduce the redundant data that in map of navigation electronic, is produced in the road data storing process.
In order to achieve the above object, the invention provides the method for topologically partitioning road network in a kind of map of navigation electronic, described method comprises:
Steps A, obtain the original road net data of road network in the described map of navigation electronic, and the described original road net data that will obtain is divided into a plurality of graticule mesh;
Step B, according to predetermined grade classification strategy, set the topological grade of road in described a plurality of graticule mesh respectively;
Step C, be the core graticule mesh, carry out the path expansion from the road of the low topological grade on the border of described core graticule mesh with each graticule mesh;
Step D, by traverse path expansion other graticule mesh of process obtain topological extended partition, described topological extended partition guarantees that the topology of route searching data partition interlayer is connective;
Road data in step e, the described core graticule mesh of storage, and the graticule mesh tabulation of in topological partition management data, writing down described topological extended partition by index data;
The treatment scheme of repeating step C～step e, the process of obtaining topological extended partition as the core graticule mesh up to described a plurality of graticule mesh all disposes.
Preferably, when needs were used road data in the described road network, described method also comprised:
Index data according to the described graticule mesh tabulation that provides in the described topological partition management data reads the road data in the described topological extended partition.
Preferably, the step of storing the road data in the described core net is specially:
According to the topological grade of road in the described graticule mesh, the road data piecemeal in the described graticule mesh is stored.
Preferably, the step with the storage of the road piecemeal in the described graticule mesh comprises:
By the information of road data in the described topological grade reorganization graticule mesh, the information of described road data comprises: the nodal information of road, segmental arc information or composite node information;
The road data of identical topological grade is kept in the same data block.
Preferably, the step that the described original road net data of obtaining is divided into a plurality of graticule mesh is:
Meridian at a predetermined angle and latitude line are divided into a plurality of graticule mesh as the border with described original road net data; Perhaps
With the thing axle of reference point and the parallel lines of north and south axle is that the border is divided into a plurality of graticule mesh with described original road net data.
Preferably; described original road net data is pressed the physical storage format PSF specification of map of navigation electronic; stratification-district collection-district-graticule mesh quaternary structure is set to be managed; wherein the road data of each floor manages by district's collection; described district collection is divided into a plurality of different districts, the actual graticule mesh that has road data of described district's protection.
Preferably, described method also comprises:
The road data of described each layer is carried out dividing processing or merge handling, and described graticule mesh is for cutting apart graticule mesh or integration graticule mesh after handling.
Preferably, according to predetermined grade classification strategy, the step of setting the topological grade of road in the described graticule mesh is:
Based on the Performance Level of road, set the topological grade of road in the described graticule mesh, the Performance Level of described road comprises: intercity road and urban road, wherein said intercity road comprises: highway, national highway, provincial highway, county road and township road; Described urban road comprises: city expressway, major trunk roads, subsidiary road and branch road.
Preferably, described method also comprises:
According to connectedness, closure and the optimality of road in the described graticule mesh, adjust the topological grade of described road.
Preferably, the optimality of described road be with any a pair of road as departure place and destination, in be not less than the network that described a pair of road forms by topological grade, plan optimal path.
The present invention also provides a kind of device of map of navigation electronic topologically partitioning road network, and described device comprises:
Divide module, be used for obtaining the original road net data of described road network, the described original road net data of obtaining is divided into a plurality of graticule mesh;
Topology grade classification module is used for setting the topological grade of road in described a plurality of graticule mesh respectively according to predetermined grade classification strategy;
The path expansion module, being used for each graticule mesh is the core graticule mesh, carries out the path expansion from the road of the low topological grade on the border of described core graticule mesh;
Spider module, be used for by traverse path expansion other graticule mesh of process obtain topological extended partition, described topological extended partition guarantees that the topology of route searching data partition interlayer is connective;
Memory module is used for storing the road data of described core graticule mesh, and writes down the graticule mesh tabulation of described topological extended partition in topological partition management data by index data.
Preferably, described device also comprises:
The index data of the described graticule mesh tabulation that provides according to described topological partition management data is provided read module, reads the road data in the described topological extended partition.
Preferably, described predetermined grade classification strategy is the Performance Level based on road, set the topological grade of road in the described graticule mesh, the Performance Level of described road comprises: intercity road and urban road, and wherein said intercity road comprises: highway, national highway, provincial highway, county road and township road; Described urban road comprises: city expressway, major trunk roads, subsidiary road and branch road.
Preferably, described topological grade classification module comprises topological grade adjustment unit, according to connectedness, closure and the optimality of road in the described graticule mesh, adjusts the topological grade of described road.
At least one technical scheme in the technique scheme has following beneficial effect: by only storing the road data in the core graticule mesh, and to the road data of expansion repeated storage not, and the road data of expansion is adopted the method for data indirect index, mode by a series of graticule mesh tabulations is recorded in the partition management data, the index that only needs during application to provide according to the partition management data reads this road data, and do not need road data in these zones of duplicate record, thereby can effectively reduce the shared capacity of road data actual storage in the map of navigation electronic, and can provide the tracking and the navigation Service of road in the subregion, and can be applicable to download as required the realization with the incremental update application model.
Description of drawings
Fig. 1 is a network topology partitioned method process flow diagram in the embodiments of the invention;
Fig. 2 is the floor map of individual layer district collection, district and graticule mesh in the embodiments of the invention;
Fig. 3 is the pretreated process flow diagram of original road net data in the embodiments of the invention;
Fig. 4 a, 4b are that the optimal path from the core graticule mesh is expanded synoptic diagram in the embodiments of the invention;
Fig. 5 is the synoptic diagram of topological extended partition in the embodiments of the invention;
Fig. 6 is for finishing the process flow diagram of topological extended partition in the embodiments of the invention;
Fig. 7 is the device block diagram of network topology subregion in the embodiments of the invention.
Embodiment
In an embodiment of the present invention, by only storing the road data in the core graticule mesh, and to the road data of topological extended partition part repeated storage not, and the road data of topological extended partition part is adopted the method for data indirect index, mode by a series of graticule mesh tabulations is recorded in the partition management data, when using, needs can read this road data according to the index that the partition management data provide, and do not need road data in these zones of duplicate record, thereby can effectively reduce the shared capacity of road data actual storage in the map of navigation electronic.
Below, at first term involved in the present invention is introduced.
(1) graticule mesh (Parcel): be meant the elementary cell of original road net data being carried out subregion.The dividing mode of this graticule mesh can adopt the scope definition that warp surrounded by the east of the warp of southernmost parallel and parallel northernmost and westernmost end, and this dividing mode also is not limited to this certainly.Can reach the purpose of map datum in the quick indexing designated geographic area by this graticule mesh.
(2) topological extended partition (Topological Overlap Area): be meant the topological coverage of road network, be used for representing the topological controlled range of road network.
(3) route searching (Route Planning): be meant and utilize map that the navigation map data storehouse provided to help driver's process of path planning in travelling preceding or travelling.
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is done explanation in further detail below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present invention and explanation are used to explain the present invention, but not as a limitation of the invention.
As shown in Figure 1, be the method flow diagram of topologically partitioning road network in the embodiments of the invention, concrete steps are as follows:
In the present embodiment, can obtain original road net data from the road road net data file of SHP form and DBF form, the source mode of above-mentioned original road net data also is not limited to this.In this step, original road net data can be by predefined PSF (Physical Storage Format, physical storage format) specification, being arranged to " floor---district collection---district---graticule mesh " quaternary structure manages, wherein the road data in " floor " manages by " district's collection ", " district's collection " can further be divided into different " district ", and comprised the actual graticule mesh that has map datum in " district ", referring to Fig. 2, be the floor map of individual layer district collection, district and graticule mesh in the embodiments of the invention.
The mode of above-mentioned division graticule mesh can be in the following way: meridian and latitude line by at a predetermined angle should original road net data be divided into a plurality of graticule mesh as the border; Perhaps, be that the border is divided into a plurality of graticule mesh with original road net data with the thing axle of reference point and the parallel lines of north and south axle, wherein the big I of the graticule mesh of each layer is set to identical size, and promptly the normal grid with each layer is that unit comes deal with data.In addition, when the road data amount in the road road network is too much or very few, also can or merge handle the average dividing processing of this graticule mesh, form this moment cuts apart graticule mesh (referring to Fig. 2) after graticule mesh or integration graticule mesh can be described as processing.
In this step, original road net data in this road network generally provides according to administrative division, this administrative division can be by province, autonomous region or municipality directly under the Central Government, original road net data pre-service in the step 101 at this moment can comprise following concrete steps, referring to Fig. 3, be the pretreated process flow diagram of original road net data in the embodiments of the invention.
Configuration file in this step comprises: original road net data path, road net data scope, road species and road form and predetermined grade classification strategy etc.;
Just refer to original road net data scope, by the structure organization of graticule mesh tabulation under the administrative division, need be to a plurality of graticule mesh circular treatment.
By the execution of step 301～step 306, the original road net data in all administrative divisions can be carried out pre-service
In the present embodiment, can set the topological grade of road in the graticule mesh based on the Performance Level of road, the Performance Level of this road comprises: intercity road and urban road, and wherein this intercity road comprises: highway, national highway, provincial highway, county road and township road; This urban road comprises: city expressway, major trunk roads, subsidiary road and branch road.This moment should the topology grade division can be referring to table 1:
Table 1
Secondly, according to the form of road the topological grade of setting road in the graticule mesh is adjusted, the form of this road comprises: main road, bypass, turnout, ring road and roundabout.
After execution of step 102, if need to adjust topological grade, then also can adjust this topology grade, for example based on path connected requirement adjust, based on road in the point of crossing adjust, based on the adjustment of rotary island road, based on the road adjustment of ferry drawing lines, require to carry out the adjustment of topological grade based on road closed with based on the optimality of road, wherein
(1) topological grade is adjusted in requirement based on path connected, and this moment, the road of each topological grade all should constitute a road network that is communicated with the road network that all grades are formed than its higher road.Be that each bar road has at least an end must have ad eundem or high-grade road to be communicated with it, can just when the initial topological grade of this segmental arc is set to 1 grade, topological grade can be adjusted into 2 grades to not being communicated with the segmental arc processing of demoting in this step.Exception is: super expressway, national highway, provincial highway and free way a certain end may occur and not connect (dead end highway); Road and other area road do not have when the wheel branch-cut bridge is connected and are not communicated with in the island;
(2) adjust topological grade based on road in the point of crossing.In the compound point of crossing at segmental arc initial point place, search all passed through records this moment, obtain to enter and export the highest topological grade of segmental arc, adjust the topological grade of road in the point of crossing then according to the topological grade that obtains through segmental arc in this point of crossing;
(3) adjust topological grade based on the rotary island road.Adjust the rotary island segmental arc this moment, guarantees that the topological grade of rotary island segmental arc equals the highest topological grade of its connection segmental arc;
(4) adjust topological grade based on ferry drawing lines road.Upgrade to the wheel branch-cut bridge this moment, guarantees to be communicated with high-rise road network;
(5) topological grade is adjusted in requirement according to road closed.Closure is meant under the prerequisite of considering traffic regulation (the traffic regulation two parts that comprise segmental arc and node), each bar road head and the tail all must have ad eundem or high-grade road to be communicated with it, in other words, on formed road junction, from each bar road to other each bar ad eundem or advanced road all must be transitable.This step is demoted to not sealing segmental arc;
(6) optimality according to road requires to carry out the adjustment of topological grade, optimality is meant with any a pair of road as departure place and destination, can plan optimal path in the network that the road that is not less than them by topological grade is formed, the result is identical with planning in original road network.This step relevant road of will upgrading.The meaning of optimality is to guarantee in the search procedure the stepped distribution of search road topology grade from origin to destination, and promptly lower grade of two ends is and central higher.For example in utilizing existing two-way dijkstra's algorithm, in the search tree of any one direction, when a temporary path when searching the higher segmental arc of grade, can ignore the low segmental arc of grade and proceed search, this disposal route has reduced the search volume greatly, and the optimum optimality in path still can be guaranteed.
After execution of step 103, can the road data piecemeal in this graticule mesh be stored according to the topological grade of road in the graticule mesh.Be specially the information that reorganizes road in the graticule mesh by the topological grade of road, this information comprises: the nodes records information of road, segmental arc recorded information or composite node recorded information, road with phase homeomorphism grade is kept in the same data block then, the data that are same levels are kept in the same piecemeal, thereby can effectively improve data read efficient.
The actual physical storage data of subregion have only the core graticule mesh in the present embodiment, and to topological extended partition part repeated storage not, therefore at first will obtain the core graticule mesh, obtain the topological extended partition of response then according to this core graticule mesh.Above-mentioned core mesh region is not overlapping, and their union can constitute whole road network, and the principle that the core graticule mesh is set can be to keep data volume equilibrium in each partitioned core zone.Each graticule mesh should be chosen in this step, and only selectedly is set to the core graticule mesh once.
Finish the core graticule mesh is set after, carrying out corresponding topological extended partition optimal path again explores, in the present embodiment can be from the low topological grade road on this core graticule mesh border, for example from 4 grades and 3 grades of roads on core graticule mesh border, carry out forward and the expansion of reverse optimal path with multiple priority condition then, this multiple priority condition is meant time priority, distance priority or charge priority scheduling.The institute overlay area is the scope bigger polygonal region of graticule mesh through extending to form in the optimal path expansion.According to the topological grade that in topological extended partition, can arrive node, can divide into the topological extended partition of 2 grades and 1 grade two kinds of grades; And be the departure place or the differentiation of destination according to the core graticule mesh, can divide into forward and reverse two types again.Fig. 4 a is the forward optimal path expansion from the partitioned core graticule mesh; Fig. 4 b is the reverse optimal path expansion from the partitioned core graticule mesh.
In this step, the graticule mesh by traversal optimal path expansion process can obtain 2 grades and 1 grade of two kinds of topological extended partition, the graticule mesh tabulation of 2 grades and 1 grade virtual topology subregions of record in topological partition management record.The topology extended partition can guarantee the connectivity between route searching data partition level, in partition boundaries, can switch to last layer by the same node connection attribute of upper strata road, and route searching can be undertaken by the level segmentation.Fig. 5 explores the result by optimal path to obtain topological extended partition signal, begin to recall the whole piece route from the optimal path terminal point among the figure, the graticule mesh at 2 grades of road L4, L3 place is 1 grade of extended partition in the route, the graticule mesh at 3 grades or 4 grades of road L2 and L1 place is 2 grades of extended partitions, and this moment, topological subregion was by core graticule mesh, 2 grades of topological extended partitions, three ingredients of 1 grade of topological extended partition.
Referring to Fig. 6, for finishing the method flow diagram of topological extended partition in the embodiments of the invention, this method comprises following concrete steps:
The workspace is explored in step 601, initialization;
In the present embodiment, because 2 grades of extended partitions are to carry out circuit by 3 grades of core graticule mesh border and 4 grades of nodes to explore, reach 2 grades and above node stop and expand.To 2 grades and above node, need not to expand by above-mentioned requirements, but so flow process of method ends.
Any non-boundary node in the core graticule mesh will inevitably pass through boundary node in the route expansion process, so the zone of their expansion processes is included in the zone of boundary node expansion process, so can ignore the expansion of this category node.
1 grade of extended partition in this step is to carry out route searching by the borderline 2 grades of nodes of 2 grades of extended partitions of core graticule mesh, arrives 1 grade of node stop expansion.
Road data in step 105, the storage core net, and the graticule mesh tabulation of in topological partition management data, writing down topological extended partition by index data.
Then, the treatment scheme of repeating step 103～step 105, the process of obtaining topological extended partition as the core graticule mesh up to a plurality of graticule mesh all disposes.
Road net data model used in the present invention be each grid pre-defined multistage topological extended partition.Can guarantee to arrive the inferior topological hierarchy node of last layer at topological extended partition, therefore can guarantee that route searching is undertaken by the level segmentation.The subregion that uses topological extended partition technology to generate among the present invention can independently provide tracking and navigation Service in the subregion, and can be applicable to download as required the realization with the incremental update application model.
In order to realize above-mentioned method embodiment, other embodiment of the present invention also provide the device of topologically partitioning road network in a kind of map of navigation electronic.What need at first explanation in addition is; because following embodiment is for realizing aforesaid method embodiment; so this device all is to establish for each step that realizes preceding method; but the present invention is not limited to following embodiment, and any device of said method of realizing all should be contained in protection scope of the present invention.And in the following description, the content identical with preceding method omitted at this, to save length.
As shown in Figure 7, be the device block diagram of network topology subregion in the embodiments of the invention, this device 70 comprises:
Topology grade classification module 72 is used for setting the topological grade of road in described a plurality of graticule mesh respectively according to predetermined grade classification strategy;
Above-mentioned predetermined grade classification strategy is the Performance Level based on road, set the topological grade of road in the described graticule mesh, the Performance Level of described road comprises: intercity road and urban road, and wherein said intercity road comprises: highway, national highway, provincial highway, county road and township road; Described urban road comprises: city expressway, major trunk roads, subsidiary road and branch road.And
And the topological grade of road also can carry out the adjustment of topological grade according to the form of road, and this moment, the form of this road comprised: main road, bypass, turnout, ring road and roundabout.
In another embodiment of the present invention, this device 70 also comprises:
The index data of the described graticule mesh tabulation that provides according to described topological partition management data is provided read module, reads the road data in the described topological extended partition.
In another embodiment of the present invention, topological grade classification module 72 comprises: topological grade adjustment unit, according to connectedness, closure and the optimality of road in the described graticule mesh, adjust the topological grade of described road.
The optimality of above-mentioned road is meant with any a pair of road as departure place and destination, plans optimal path in be not less than the network that described a pair of road forms by topological grade.
As shown from the above technical solution, by only storing the road data in the core graticule mesh, and to the road data of expansion repeated storage not, and the road data of expansion is adopted the method for data indirect index, mode by a series of graticule mesh tabulations is recorded in the partition management data, the index that only needs during application to provide according to the partition management data reads this road data, and do not need road data in these zones of duplicate record, thereby can effectively reduce the shared capacity of road data actual storage in the map of navigation electronic, and can provide the tracking and the navigation Service of road in the subregion, and can be applicable to download as required the realization with the incremental update application model.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. the method for topologically partitioning road network in the map of navigation electronic is characterized in that described method comprises:
Steps A, obtain the original road net data of road network in the described map of navigation electronic, and the described original road net data that will obtain is divided into a plurality of graticule mesh;
Step B, according to predetermined grade classification strategy, set the topological grade of road in described a plurality of graticule mesh respectively;
Step C, be the core graticule mesh, carry out the path expansion from the road of the low topological grade on the border of described core graticule mesh with each graticule mesh;
Step D, by traverse path expansion other graticule mesh of process obtain topological extended partition, described topological extended partition guarantees that the topology of route searching data partition interlayer is connective;
Road data in step e, the described core graticule mesh of storage, and the graticule mesh tabulation of in topological partition management data, writing down described topological extended partition by index data;
The treatment scheme of repeating step C～step e, the process of obtaining topological extended partition as the core graticule mesh up to described a plurality of graticule mesh all disposes.
2. method according to claim 1 is characterized in that, when needs were used road data in the described road network, described method also comprised:
Index data according to the described graticule mesh tabulation that provides in the described topological partition management data reads the road data in the described topological extended partition.
3. method according to claim 1 is characterized in that, the step of storing the road data in the described core net is specially:
According to the topological grade of road in the described graticule mesh, the road data piecemeal in the described graticule mesh is stored.
4. method according to claim 3 is characterized in that, the step that the road piecemeal in the described graticule mesh is stored comprises:
By the information of road data in the described topological grade reorganization graticule mesh, the information of described road data comprises: the nodal information of road, segmental arc information or composite node information;
The road data of identical topological grade is kept in the same data block.
5. method according to claim 1 is characterized in that, the step that the described original road net data of obtaining is divided into a plurality of graticule mesh is:
Meridian at a predetermined angle and latitude line are divided into a plurality of graticule mesh as the border with described original road net data; Perhaps
With the thing axle of reference point and the parallel lines of north and south axle is that the border is divided into a plurality of graticule mesh with described original road net data.
6. method according to claim 5; it is characterized in that; described original road net data is pressed the physical storage format PSF specification of map of navigation electronic; stratification-district collection-district-graticule mesh quaternary structure is set to be managed; wherein the road data of each floor manages by district's collection; described district collection is divided into a plurality of different districts, the actual graticule mesh that has road data of described district's protection.
7. method according to claim 6 is characterized in that, described method also comprises:
The road data of described each layer is carried out dividing processing or merge handling, and described graticule mesh is for cutting apart graticule mesh or integration graticule mesh after handling.
8. method according to claim 1 is characterized in that, according to predetermined grade classification strategy, the step of setting the topological grade of road in the described graticule mesh is:
Based on the Performance Level of road, set the topological grade of road in the described graticule mesh, the Performance Level of described road comprises: intercity road and urban road, wherein said intercity road comprises: highway, national highway, provincial highway, county road and township road; Described urban road comprises: city expressway, major trunk roads, subsidiary road and branch road.
9. method according to claim 8 is characterized in that, described method also comprises:
According to connectedness, closure and the optimality of road in the described graticule mesh, adjust the topological grade of described road.
10. method according to claim 9 is characterized in that, the optimality of described road be with any a pair of road as departure place and destination, in be not less than the network that described a pair of road forms by topological grade, plan optimal path.
11. the device of a map of navigation electronic topologically partitioning road network is characterized in that, described device comprises:
Divide module, be used for obtaining the original road net data of described road network, the described original road net data of obtaining is divided into a plurality of graticule mesh;
Topology grade classification module is used for setting the topological grade of road in described a plurality of graticule mesh respectively according to predetermined grade classification strategy;
The path expansion module, being used for each graticule mesh is the core graticule mesh, carries out the path expansion from the road of the low topological grade on the border of described core graticule mesh;
Spider module, be used for by traverse path expansion other graticule mesh of process obtain topological extended partition, described topological extended partition guarantees that the topology of route searching data partition interlayer is connective;
Memory module is used for storing the road data of described core graticule mesh, and writes down the graticule mesh tabulation of described topological extended partition in topological partition management data by index data.
12. device according to claim 11 is characterized in that, described device also comprises:
The index data of the described graticule mesh tabulation that provides according to described topological partition management data is provided read module, reads the road data in the described topological extended partition.
13. device according to claim 11, it is characterized in that, described predetermined grade classification strategy is the Performance Level based on road, set the topological grade of road in the described graticule mesh, the Performance Level of described road comprises: intercity road and urban road, and wherein said intercity road comprises: highway, national highway, provincial highway, county road and township road; Described urban road comprises: city expressway, major trunk roads, subsidiary road and branch road.
14. device according to claim 13 is characterized in that, described topological grade classification module comprises topological grade adjustment unit, according to connectedness, closure and the optimality of road in the described graticule mesh, adjusts the topological grade of described road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100767949A CN101782399B (en) | 2009-01-21 | 2009-01-21 | Method and device for topologically partitioning road network in navigation electronic map |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100767949A CN101782399B (en) | 2009-01-21 | 2009-01-21 | Method and device for topologically partitioning road network in navigation electronic map |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101782399A true CN101782399A (en) | 2010-07-21 |
| CN101782399B CN101782399B (en) | 2012-07-04 |
Family
ID=42522489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100767949A Active CN101782399B (en) | 2009-01-21 | 2009-01-21 | Method and device for topologically partitioning road network in navigation electronic map |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101782399B (en) |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012232A (en) * | 2010-11-11 | 2011-04-13 | 清华大学 | Method for updating map data of vehicle-mounted navigation system |
| CN102214409A (en) * | 2011-06-16 | 2011-10-12 | 杭州星软科技有限公司 | Judging method based on vehicles on route |
| CN102364545A (en) * | 2011-10-12 | 2012-02-29 | 北京世纪高通科技有限公司 | Method, device and system for inquiring road conditions |
| CN102538801A (en) * | 2010-12-16 | 2012-07-04 | 上海博泰悦臻电子设备制造有限公司 | Method and device for processing road network data in navigation map |
| CN103021257A (en) * | 2012-12-04 | 2013-04-03 | 北京世纪高通科技有限公司 | Method and apparatus for generating electronic map |
| CN103258043A (en) * | 2013-05-23 | 2013-08-21 | 南京师范大学 | POI simplifying parallel computing method based on road mesh hierarchical structure division |
| CN103684942A (en) * | 2013-12-03 | 2014-03-26 | 天津市普迅电力信息技术有限公司 | Two-stage partitioning method of topological network |
| CN104422460A (en) * | 2013-09-06 | 2015-03-18 | 上海博泰悦臻电子设备制造有限公司 | Navigation method and navigation device |
| CN104573140A (en) * | 2013-10-09 | 2015-04-29 | 北京军区军事训练模拟仿真研发服务中心 | Layered dynamic path planning method applied to virtual simulation |
| CN104596527A (en) * | 2013-10-31 | 2015-05-06 | 北京四维图新科技股份有限公司 | A method of dividing guiding roads at different levels and detailed streets |
| CN105222793A (en) * | 2015-10-23 | 2016-01-06 | 华中科技大学 | A kind of city stratification region partitioning method based on map vector data model |
| WO2016107439A1 (en) * | 2014-12-30 | 2016-07-07 | 高德软件有限公司 | Road data storage method and device |
| CN105758407A (en) * | 2014-12-17 | 2016-07-13 | 高德软件有限公司 | Data generation method and data generation device |
| CN104156357B (en) * | 2013-05-13 | 2017-04-12 | 北京四维图新科技股份有限公司 | Testing method and device for electronic map data |
| CN104048668B (en) * | 2014-06-06 | 2017-05-24 | 桂林电子科技大学 | Map mapping method of floating vehicle |
| CN108120443A (en) * | 2016-11-28 | 2018-06-05 | 武汉四维图新科技有限公司 | A kind of method, apparatus and equipment for updating map datum |
| CN108204813A (en) * | 2016-12-19 | 2018-06-26 | 北京四维图新科技股份有限公司 | The method, apparatus and navigation system of a kind of path computing |
| CN108319895A (en) * | 2017-12-29 | 2018-07-24 | 百度在线网络技术（北京）有限公司 | The method and apparatus at the crossing in electronic map for identification |
| CN108592926A (en) * | 2012-03-30 | 2018-09-28 | 株式会社电装 | Information processing system |
| CN108650163A (en) * | 2018-04-23 | 2018-10-12 | 首都师范大学 | It is classified the tunnel connection method and device of non-full-mesh virtual topology |
| CN108961266A (en) * | 2018-05-25 | 2018-12-07 | 深圳市中电数通智慧安全科技股份有限公司 | A kind of region partitioning method and device |
| CN109506669A (en) * | 2018-12-28 | 2019-03-22 | 斑马网络技术有限公司 | Dynamic path planning method, device, system and storage medium |
| CN110110019A (en) * | 2018-01-31 | 2019-08-09 | 北京四维图新科技股份有限公司 | A kind of method and device that road network topological data updates |
| CN111896017A (en) * | 2020-07-28 | 2020-11-06 | 北京奇虎技术服务有限公司 | Route determining method, device, equipment and storage medium |
| CN113159433A (en) * | 2021-04-28 | 2021-07-23 | 中国科学院沈阳应用生态研究所 | Dynamic navigation path searching method for integrated indoor mixed three-dimensional road network |
| US20220083704A1 (en) * | 2017-11-10 | 2022-03-17 | Autodesk, Inc. | Techniques for automatically generating designs having characteristic topologies for urban design projects |
| CN115661852A (en) * | 2022-11-03 | 2023-01-31 | 北京大学重庆大数据研究院 | Map segmentation method, map segmentation device, computer-readable storage medium and processor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100523735C (en) * | 2006-08-17 | 2009-08-05 | 北京航空航天大学 | Fast map matching method based on small lattice road network organization and structure |
| CN101149268A (en) * | 2007-10-30 | 2008-03-26 | 上海上大鼎正软件有限公司 | Road topology data model for navigation and calculation method |
-
2009
- 2009-01-21 CN CN2009100767949A patent/CN101782399B/en active Active
Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012232A (en) * | 2010-11-11 | 2011-04-13 | 清华大学 | Method for updating map data of vehicle-mounted navigation system |
| CN102538801B (en) * | 2010-12-16 | 2016-03-30 | 上海博泰悦臻电子设备制造有限公司 | A kind of disposal route of road network data in navigation map and device |
| CN102538801A (en) * | 2010-12-16 | 2012-07-04 | 上海博泰悦臻电子设备制造有限公司 | Method and device for processing road network data in navigation map |
| CN102214409A (en) * | 2011-06-16 | 2011-10-12 | 杭州星软科技有限公司 | Judging method based on vehicles on route |
| CN102364545A (en) * | 2011-10-12 | 2012-02-29 | 北京世纪高通科技有限公司 | Method, device and system for inquiring road conditions |
| CN108592926A (en) * | 2012-03-30 | 2018-09-28 | 株式会社电装 | Information processing system |
| CN103021257A (en) * | 2012-12-04 | 2013-04-03 | 北京世纪高通科技有限公司 | Method and apparatus for generating electronic map |
| CN103021257B (en) * | 2012-12-04 | 2015-06-10 | 北京世纪高通科技有限公司 | Method and apparatus for generating electronic map |
| CN104156357B (en) * | 2013-05-13 | 2017-04-12 | 北京四维图新科技股份有限公司 | Testing method and device for electronic map data |
| CN103258043A (en) * | 2013-05-23 | 2013-08-21 | 南京师范大学 | POI simplifying parallel computing method based on road mesh hierarchical structure division |
| CN103258043B (en) * | 2013-05-23 | 2016-03-30 | 南京师范大学 | Based on the POI simplification parallel calculating method that network meshes hierarchical structure divides |
| CN104422460B (en) * | 2013-09-06 | 2017-08-01 | 上海博泰悦臻电子设备制造有限公司 | A kind of air navigation aid and guider |
| CN104422460A (en) * | 2013-09-06 | 2015-03-18 | 上海博泰悦臻电子设备制造有限公司 | Navigation method and navigation device |
| CN104573140A (en) * | 2013-10-09 | 2015-04-29 | 北京军区军事训练模拟仿真研发服务中心 | Layered dynamic path planning method applied to virtual simulation |
| CN104596527B (en) * | 2013-10-31 | 2017-08-11 | 北京四维图新科技股份有限公司 | A kind of method for dividing guiding roads at different levels and Xi Jie roads |
| CN104596527A (en) * | 2013-10-31 | 2015-05-06 | 北京四维图新科技股份有限公司 | A method of dividing guiding roads at different levels and detailed streets |
| CN103684942B (en) * | 2013-12-03 | 2016-09-21 | 天津市普迅电力信息技术有限公司 | A kind of two-stage method of partition of topological network |
| CN103684942A (en) * | 2013-12-03 | 2014-03-26 | 天津市普迅电力信息技术有限公司 | Two-stage partitioning method of topological network |
| CN104048668B (en) * | 2014-06-06 | 2017-05-24 | 桂林电子科技大学 | Map mapping method of floating vehicle |
| CN105758407A (en) * | 2014-12-17 | 2016-07-13 | 高德软件有限公司 | Data generation method and data generation device |
| CN105758407B (en) * | 2014-12-17 | 2018-12-11 | 高德软件有限公司 | A kind of method and device that data generate |
| CN105806348A (en) * | 2014-12-30 | 2016-07-27 | 高德软件有限公司 | Road data storage method and device |
| WO2016107439A1 (en) * | 2014-12-30 | 2016-07-07 | 高德软件有限公司 | Road data storage method and device |
| CN105806348B (en) * | 2014-12-30 | 2018-12-11 | 高德软件有限公司 | A kind of road data storage method and equipment |
| CN105222793A (en) * | 2015-10-23 | 2016-01-06 | 华中科技大学 | A kind of city stratification region partitioning method based on map vector data model |
| CN105222793B (en) * | 2015-10-23 | 2019-01-04 | 华中科技大学 | A kind of city stratification region partitioning method based on map vector data model |
| CN108120443A (en) * | 2016-11-28 | 2018-06-05 | 武汉四维图新科技有限公司 | A kind of method, apparatus and equipment for updating map datum |
| CN108204813A (en) * | 2016-12-19 | 2018-06-26 | 北京四维图新科技股份有限公司 | The method, apparatus and navigation system of a kind of path computing |
| US11922099B2 (en) | 2017-11-10 | 2024-03-05 | Autodesk, Inc. | Techniques for automatically generating designs having characteristic topologies for urban design projects |
| US20220083704A1 (en) * | 2017-11-10 | 2022-03-17 | Autodesk, Inc. | Techniques for automatically generating designs having characteristic topologies for urban design projects |
| CN108319895A (en) * | 2017-12-29 | 2018-07-24 | 百度在线网络技术（北京）有限公司 | The method and apparatus at the crossing in electronic map for identification |
| CN108319895B (en) * | 2017-12-29 | 2021-09-17 | 百度在线网络技术（北京）有限公司 | Method and device for identifying intersection in electronic map |
| CN110110019A (en) * | 2018-01-31 | 2019-08-09 | 北京四维图新科技股份有限公司 | A kind of method and device that road network topological data updates |
| CN108650163A (en) * | 2018-04-23 | 2018-10-12 | 首都师范大学 | It is classified the tunnel connection method and device of non-full-mesh virtual topology |
| CN108650163B (en) * | 2018-04-23 | 2020-09-08 | 首都师范大学 | Tunnel communication method and device of hierarchical non-fully-communicated virtual topology |
| CN108961266A (en) * | 2018-05-25 | 2018-12-07 | 深圳市中电数通智慧安全科技股份有限公司 | A kind of region partitioning method and device |
| CN109506669A (en) * | 2018-12-28 | 2019-03-22 | 斑马网络技术有限公司 | Dynamic path planning method, device, system and storage medium |
| CN111896017A (en) * | 2020-07-28 | 2020-11-06 | 北京奇虎技术服务有限公司 | Route determining method, device, equipment and storage medium |
| CN111896017B (en) * | 2020-07-28 | 2023-08-15 | 三六零科技集团有限公司 | Route determination method, device, equipment and storage medium |
| CN113159433A (en) * | 2021-04-28 | 2021-07-23 | 中国科学院沈阳应用生态研究所 | Dynamic navigation path searching method for integrated indoor mixed three-dimensional road network |
| CN115661852A (en) * | 2022-11-03 | 2023-01-31 | 北京大学重庆大数据研究院 | Map segmentation method, map segmentation device, computer-readable storage medium and processor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101782399B (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101782399B (en) | Method and device for topologically partitioning road network in navigation electronic map | |
| CN101650191B (en) | Road network topology aggregation method and device | |
| CN100523735C (en) | Fast map matching method based on small lattice road network organization and structure | |
| CN109506669B (en) | Dynamic path planning method, device, system and storage medium | |
| Lang et al. | The new metropolis: Rethinking megalopolis | |
| DE69725677T2 (en) | Device and method for storing geographic data on a physical storage medium | |
| CN101149268A (en) | Road topology data model for navigation and calculation method | |
| CN102435200A (en) | Rapid path planning method | |
| CN107036572A (en) | A kind of agricultural machinery working area acquisition methods and device | |
| CN104252489A (en) | Method for fast obtaining position character description information according to latitude and longitude data | |
| CN101162150A (en) | Calculating method for searching multi-city multi-province route using framing data in networking vehicle mounted guidance apparatus | |
| CN103871234A (en) | Grid mapping growth-based traffic network division method and configuration server | |
| JP2004177959A (en) | Arranging method of map data | |
| CN102012232B (en) | Method for updating map data of vehicle-mounted navigation system | |
| WO2020238667A1 (en) | Map generation method, traffic analysis method, device, and storage medium | |
| CN102376160A (en) | Method and system for updating real-time traffic information | |
| CN102855322A (en) | Map data storage method based on space exploration technology | |
| CN103295464A (en) | Method and device for data management of electronic map and method and device for generation of electronic map | |
| CN103389101B (en) | A kind of path connected inspection method based on hierarchical structure | |
| CN104200127A (en) | Optimal path analyzing method based on road corner weight | |
| CN102663028A (en) | Method suitable for fast spatially-indexing global digital elevation model and remote sensing image data | |
| Delling et al. | Engineering time-expanded graphs for faster timetable information | |
| CN110046213A (en) | A kind of electric power selection method for taking path distortion correction and scissors crossing correction into account | |
| CN102162734A (en) | Method for generating data in navigation electronic map | |
| US20020016670A1 (en) | Data formats and usage for massive point-to-point route calculation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |