CN105893577B - Road net data processing method and processing device - Google Patents
Road net data processing method and processing device Download PDFInfo
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- CN105893577B CN105893577B CN201610203373.8A CN201610203373A CN105893577B CN 105893577 B CN105893577 B CN 105893577B CN 201610203373 A CN201610203373 A CN 201610203373A CN 105893577 B CN105893577 B CN 105893577B
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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Abstract
The present invention discloses a kind of road net data processing method and processing device, and method includes: to determine target road corresponding with the road network facility of update in the road of road network according to the data of the road network facility updated in road net data and road network；The first route of corresponding target road is generated according to the characteristic information of target road, the second route of road network facility and the first route that connection updates is generated according to the first route and the road network facility of update, the first route includes the data that target road is corresponded in road net data；The road network facility, the first route and the second route of update are carried out mixing operation with target road in road net data to obtain merging road net data., can be in the case where not changing original road network using the present invention, the newly-increased road network facility of realization is merged with road net data, reduces workload.
Description
Technical field
The present invention relates to map datum processing technique more particularly to a kind of road net data processing method and processing devices.
Background technique
Electronic map, also referred to as numerical map, refer to using computer technology, the map for storing and consulting in a digital manner；
The method that electronic map stores information generally uses vector mode image storage, and map scale is enlarging or reducing or rotation is without shadow
Display effect, the storage of early application bit map type are rung, map scale cannot zoom in or out, the existing general base of electronic map software
Map datum is stored and transmitted in internet, user is allowed to inquire electronic map whenever and wherever possible, meet based on electronically
The demands such as positioning, the navigation of figure.
The road net data of Map Service quotient is from special metadata provider, but provided by metadata provider
Data often lack the important road network facility data such as parking lot, overpass, underpass or metadata provider to road network
The update frequency of data is too low, is unable to satisfy the business demand of Map Service quotient；In consideration of it, Map Service quotient is often
Understand a large amount of road network facility data of oneself active collection, adds in original road net data provided by metadata provider；In general,
Road network facility (such as parking lot, overpass, underpass) has corresponding navigation spots and route for navigation, still
The source of the road network facility data of Map Service quotient's active collection may be it is various, in order to support navigation need point
The route of those road network facilities collected is not articulated to together with above-mentioned original road net data, the operation of the mounting is needed to original
The sequence of maneuvers such as beginning road net data interrupts, correction of the flank shape, movement, deletion.
However, due to being attached to a large amount of communication navigation data (for example, lane information, traffic lights etc.) in road net data,
The prior art may all bring relevant communication navigation data failure or mistake to any operation of road net data, this will cause
Navigation failure, if above-mentioned relevant communication navigation data are maintained into effective or accurate state again, then needs to expend
A large amount of manpower/material resources, required workload is huge.
Summary of the invention
In view of this, can not change an embodiment of the present invention is intended to provide a kind of road net data processing method and processing device
In the case where original road, the newly-increased road network facility of realization is merged with road net data.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
In a first aspect, the embodiment of the present invention provides a kind of road net data processing method, which comprises
According to the data of the road network facility updated in road net data and road network, determine in the road of the road network with it is described
The corresponding target road of road network facility of update；
The first route that the corresponding target road is generated according to the characteristic information of the target road, according to described first
Route and the road network facility of the update generate the second route of the road network facility and first route that connect the update, institute
Stating the first route includes the data that the target road is corresponded in the road net data；
By the road network facility of the update, first route and second route in the road net data with it is described
Target road carries out mixing operation and obtains fusion road net data；Wherein, first route in the fusion road net data, institute
Stating the second route becomes line used in determining navigation routine for replacing the target road when operational order is navigated in response
Road.
It is optionally, described that corresponding first route of the target road is generated according to the characteristic information of the target road,
Include:
The characteristic information for analyzing the target road obtains geographical location and the shape of the target road；
Geographical location and shape based on the target road generate the first route；
The ownership geographical location for determining the data that the target road is corresponded in the road net data, by the data correlation
To position corresponding with the ownership geographical location in first route.
Optionally, described that the road network for connecting the update is generated according to first route and the road network facility of the update
Second route of facility and first route, comprising:
Obtain the navigation information between the navigation spots of the road network facility of the update and first route；
The navigation information of the acquisition is analyzed, determines the navigation information for meeting preset condition；
To correspond to the first end that the tie point of the navigation information of the determination is second route on first route,
Take the navigation spots of the road network facility of the update as the second end of second route, generates second route；
Second route is associated with to first route.
Optionally, first route in the fusion road net data, second route have stealthy attribute；It is described
Method further include:
In response to loading the instruction of the target area of the fusion road network in graphical interfaces, whether the target area is detected
Road network facility including the update；
When determining that the target area includes the road network facility of the update, read described in being corresponded in the fusion road network
The road net data of target area, and shield first route and second route for reading and there is stealthy attribute；
The map of the target area is drawn based on read road net data.
Optionally, the method also includes:
In response to the navigation operational order received, determined in the fusion road net data from the fusion road net data
Road net data corresponding with the navigation area of the navigation operational order instruction；
Detect the navigation area whether include the update road network facility；
When determining that the navigation area includes the road network facility of the update, the corresponding road network number of the navigation area is read
According to, and shield and read the target road that the navigation area includes；
It is first route of road network facility based on the correspondence update for including in read road net data, described
Second route calculation navigation routine.
Optionally, the method also includes:
The road net data updated is obtained, the road net data of the update is parsed；
When the road net data for determining the update includes the more new data of the target road, according to the target road
More new data update the target road, and first route is updated according to the characteristic information of updated target road；
According to the road network facility of the update and updated first route, second route is updated.
Second aspect, the embodiment of the present invention provide a kind of road net data processing unit, and described device includes:
Determining module determines the road network for the data according to the road network facility updated in road net data and road network
Road in target road corresponding with the road network facility of the update；
Generation module, for generating the first via of the corresponding target road according to the characteristic information of the target road
Line generates the road network facility for connecting the update and the first via according to first route and the road network facility of the update
Second route of line, first route include the data that the target road is corresponded in the road net data；
Fusion Module, for by the road network facility of the update, first route and second route on the road
Mixing operation is carried out with the target road in network data to obtain merging road net data；Wherein, in the fusion road net data
First route, second route, which are used to replace the target road when operational order is navigated in response to become, determines navigation
Route used in route.
Optionally, the generation module is also used to:
The characteristic information for analyzing the target road obtains geographical location and the shape of the target road；Based on described
The geographical location of target road and shape generate the first route；Determine the number that the target road is corresponded in the road net data
According to ownership geographical location, by the data correlation into first route position corresponding with the ownership geographical location.
Optionally, the generation module is also used to:
Obtain the navigation information between the navigation spots of the road network facility of the update and first route；It is obtained described in analysis
The navigation information taken determines the navigation information for meeting preset condition；To correspond to the navigation letter of the determination on first route
The tie point of breath is the first end of second route, is second route with the navigation spots of the road network facility of the update
Second end generates second route；Second route is associated with to first route.
Optionally, first route in the fusion road net data, second route have stealthy attribute；It is described
Device further include:
Drafting module detects institute for the instruction of the target area in response to loading the fusion road network in graphical interfaces
State target area whether include the update road network facility；Determine that the target area includes the road network facility of the update
When, it reads in the fusion road network and corresponds to the road net data of the target area, and shield the institute for reading and there is stealthy attribute
State the first route and second route；The map of the target area is drawn based on read road net data.
Optionally, described device further include:
Operation module of navigating is determined from the fusion road net data for the navigation operational order in response to receiving
Road net data corresponding with the navigation area of the navigation operational order instruction in the fusion road net data；Detect the navigation
Region whether include the update road network facility；When determining that the navigation area includes the road network facility of the update, read
The corresponding road net data of the navigation area, and shield and read the target road that the navigation area includes；Based on institute
First route of the road network facility of the correspondence for including in the road net data of the reading update, second route calculation are led
Air route line.
Optionally, described device further include:
Update module parses the road net data of the update for obtaining the road net data updated；When determining
When the road net data for stating update includes the more new data of the target road, institute is updated according to the more new data of the target road
Target road is stated, and first route is updated according to the characteristic information of updated target road；According to the road of the update
Net facility and updated first route update second route.
In the embodiment of the present invention, according to mesh corresponding with the characteristic information generation of the corresponding target road of road network facility of update
Mark road include road net data in correspond to target road data the first route, and generate connection update road network facility and
Second route of the first route, by the road network facility, the first route and the second route of update in road net data with target road
It carries out mixing operation and obtains fusion road net data, navigated based on the fusion road net data for including the first route, the second route
It calculates, the road network facility based on update both may be implemented and carried out navigation calculating, while increased first in original road net data
Route, the second route are the legacy datas that can be different from original road net data, this is not just to target road (i.e. original road
Road) operation such as interrupted, modified, being moved, being deleted in the case where, the road network facility of update can be realized, and (i.e. newly-increased road network is set
Apply) it is merged with original road net data, it avoids the prior art road network facility of update is articulated to needed for original road net data
A large amount of manpower/the material resources spent reduce the workload of road net data operation and maintenance management work.
Detailed description of the invention
Fig. 1 is the road network facility form schematic diagram of overpass；
Fig. 2 is the schematic diagram that overpass is articulated to road network in the prior art；
Fig. 3 is the flow diagram one of road net data processing method in the embodiment of the present invention；
Fig. 4 is the flow diagram two of road net data processing method in the embodiment of the present invention；
Fig. 5 is the flow diagram three of road net data processing method in the embodiment of the present invention；
Fig. 6 is the flow diagram four of road net data processing method in the embodiment of the present invention；
Fig. 7 is the flow diagram five of road net data processing method in the embodiment of the present invention；
Fig. 8 a is the schematic diagram one of stealthy mounting route in the embodiment of the present invention；
Fig. 8 b is the schematic diagram two of stealthy mounting route in the embodiment of the present invention；
Fig. 9 is in the embodiment of the present invention with the schematic diagram of the stealthy route of main road similar shape；
Figure 10 is that the base map of overpass in the embodiment of the present invention draws schematic diagram；
Figure 11 is the schematic diagram of the stealthy route in parking lot in the embodiment of the present invention；
Figure 12 is the structural schematic diagram one of road net data processing unit in the embodiment of the present invention；
Figure 13 is the structural schematic diagram two of road net data processing unit in the embodiment of the present invention.
Specific embodiment
Road network facility (such as parking lot, overpass, underpass, hospital, gas station, scenic spot, residential quarters, hotel)
There are the corresponding navigation spots for navigation, is illustrated by taking overpass as an example, referring to the road network of overpass shown in fig. 1
Facility form schematic diagram, line segment AC, BC, DE and DF in Fig. 1 are overpass stair, and line segment CD is overpass, line segment HI,
JK is two turnpike roads；In order to support positioning/navigation needs based on electronic map, the prior art is operated by mounting by road
Net facility is articulated to together with original road network, and mounting operation needs to interrupt original road network, correction of the flank shape, movement, deletion etc.
Sequence of maneuvers is needed to spend a large amount of manpower/material resources, is still illustrated by taking overpass as an example, the prior art shown referring to fig. 2
Middle overpass is articulated to the schematic diagram of road network, determines mounting point M, N, X, Y first in Fig. 2, respectively plays HI line at M, N
It is disconnected, JK line is interrupted respectively at X, Y, makes route AM, BN, EX, FY of mounting, the whole attached communication navigation numbers of amendment
According to, it is seen then that road network facility is articulated to original road by the prior art will spend a large amount of manpower/material resources, and road network number has been significantly greatly increased
The workload to work according to operation and maintenance management.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
The embodiment of the present invention records a kind of road net data processing method, can be applied to road net data maintenance, management and
In positioning/navigation scenarios based on electronic map, maintenance, the management of road net data, such as Map Service quotient (such as Tencent,
Baidu etc.) it will be the road network facility (such as parking lot, overpass, station, underpass or hospital) of newly-increased separate sources
Data are merged with original road net data, to provide the service such as positioning, navigation based on electronic map, are determined based on electronic map
Position, navigation scenarios, such as the users such as Tencent's map, wechat H5 navigation, car networking map, open platform map apply positioning,
Navigation scenarios.
The embodiment of the present invention also records a kind of road net data processing unit, can be used for executing the road network of the embodiment of the present invention
Data processing method, road net data processing unit can be to implement the embodiment of the present invention and the equipment that is specially arranged, can also be with
It is built in inside user equipment, user equipment may include smart phone, tablet computer, wearable device (such as intelligent glasses, intelligence
Energy wrist-watch etc.) or vehicle mobile terminals etc., road net data processing unit can also be the background server of user's application, for example,
When it is Tencent's map that user, which applies, corresponding road net data processing unit can be the background server of Tencent's map.
Road net data processing unit based on above-mentioned record, referring to Fig. 3, in a step 101, according to road net data and road
The data of the road network facility updated in net determine target road corresponding with the road network facility of update in the road of road network；In step
In rapid 102, the first route of corresponding target road is generated according to the characteristic information of target road, according to the first route and update
Road network facility generates the second route of the road network facility that connection updates and the first route, and the first route includes corresponding in road net data
The data of target road；In step 103, by the road network facility of update, the first route and the second route in road net data with
Target road carries out mixing operation and obtains fusion road net data；Wherein, the first route in road net data is merged, the second route is used
Become route used in determining navigation routine in replacing target road when operational order is navigated in response.
It should be noted that the road net data in above scheme refer to the road network facility that above-mentioned update is added before it is original
The quantity of road net data, target road can be one or more, and the quantity of target road can be by the road network facility updated
The number of navigation spots determines, for example, if when the road network facility updated is overpass, it is assumed that the number of the navigation spots of the overpass
Mesh is four, then target road corresponding with the overpass can be two；One determining target road can be original
A complete road in road network is also possible to the part way of a complete road in original road network, target road
Substantially the geographical location of the road network facility based on update, the geographical location of each road and road are practical current in original road network
Condition, a complete road (such as pavement corresponding with update road network facility that is being chosen from each road of original road network
Road) all or part of section；The characteristic information of target road may include: the title of road, geographical location, grade, shape,
Connection relationship, the information such as end-point data of road；First route can be the set of route corresponding with target road, the first via
The quantity of line can be the collection of the route of road network facility and the first route that connection updates for one or more, the second route
It closes, the quantity of the second route can be one or more, and in practice, the quantity of the first route, the quantity of the second route can be with
It is determined by the number of the navigation spots of the road network facility updated；First route and the second route have the original being different from road net data
There is the attribute of data, optionally, which is stealthy attribute；The data that target road is corresponded in road net data can wrap
It includes: the data such as lane information, traffic restricted information, traffic lights.
In above scheme, road net data processing unit is believed according to the feature of target road corresponding with the road network facility of update
What breath generated corresponding target road includes the first route of the data of target road being corresponded in road net data, and generate connection and update
Road network facility and the first route the second route, by the road network facility, the first route and the second route of update in road net data
In with target road carry out mixing operation obtain merge road net data, based on including the first route, the second route fusion road network
Data carry out navigation calculating, and the road network facility based on update both may be implemented and carried out navigation calculating, while in original road net data
In increased first route, the second route be the legacy data that can be different from original road net data, this is not just to target
In the case that road (i.e. original road) such as is interrupted, modified, moved, deleted at the sequence of maneuvers, the road network of update can be realized
Facility (i.e. newly-increased road network facility) is merged with original road net data, so that original road net data and newly-increased road network facility are (i.e.
The road network facility of update) data exist simultaneously, avoid the prior art for the road network facility of update and be articulated to original road network number
According to a large amount of manpower/material resources of required cost, the workload of road net data operation and maintenance management work is reduced.
Road net data processing unit and road net data processing method based on above-mentioned record, propose following specific implementation
Example.
Embodiment one
The present embodiment proposes the technical solution solved for the problems in following scene: it is desirable that not to target road (i.e.
Original road) sequence of maneuvers such as interrupted, modified, being moved, being deleted in the case where, realize that the road network facility of update is (i.e. newly-increased
Road network facility) it is merged with original road net data, and it is avoided that the road network facility of update is articulated to original road network by the prior art
A large amount of manpower/the material resources spent needed for data.
The road net data processing method shown referring to fig. 4, comprising the following steps:
Step 201, according to the data of the road network facility updated in road net data and road network, determine in the road of road network with
The corresponding target road of road network facility of update.
Target road can be whole sections of a complete road corresponding with the road network facility updated, target road
It is also possible to close in a complete road (section) corresponding with the road network facility updated with the position of the road network facility of update
System meets the part road of predetermined condition, for example, in the geographical location of the road network facility based on update, road network each road geography
Position and the practical traffic status of road are chosen real apart from nearest and road with the road network facility of update from each road of road network
All or part of section of one road (such as Route for pedestrians) of the current conditions permit in border is as target road；It is with overpass
Example is illustrated, and refers to Fig. 8 a, and line segment AC, BC, DE and DF shown in Fig. 8 a are overpass stair, and line segment CD is street crossing day
Bridge, A, B, E, F are four navigation spots of overpass respectively, and section HI, JK are and determining corresponding with the overpass two
Target road, also, the target road HI in Fig. 8 a is a complete road in original road network, target road JK is former
There is a complete road in road network；Fig. 8 b is referred to, line segment AC, BC, DE and DF shown in Fig. 8 b are overpass stair,
Line segment CD is overpass, and section HI, JK are and determining two target roads corresponding with the overpass, also, Fig. 8 b
In target road HI be a complete road RS in original road network part way, target road JK is in original road network
A complete road PQ part way.
Step 202, the characteristic information for analyzing target road, obtain geographical location and the shape of target road.
The characteristic information of target road may include: title, geographical location, grade, shape, the connection relationship, road of road
The information such as the end-point data on road.
Step 203, the geographical location based on target road and shape generate the first route.
The geographical location and shape of the geographical location of first route and shape and target road are completely the same；With overpass
For be illustrated, refer to Fig. 9, Fig. 9 shows the corresponding first route HMNI of target road HI and JK pairs of target road
The first the route JXYK, Fig. 9 answered is in order to illustrate deliberately to be deviated the shape of the first route HMNI and the first route JXYK
Processing, in practice, the first route HMNI and the geographical location of target road HI and shape are completely the same, the first route JXYK and mesh
Geographical location and the shape for marking road JK are completely the same.
Step 204, the ownership geographical location for determining the data that target road is corresponded in road net data, by data correlation to
Position corresponding with ownership geographical location in one route.
The data that target road is corresponded in road net data refer to data associated with target road, example in road net data
Such as, the information such as the lane information in target road, traffic restricted information, traffic lights correspond to the number of target road in road net data
According to may include one or more, determining the ownership geographical location for the total data for corresponding to target road in road net data, being based on
The equity in geographical location will be each according to the ownership geographical location for the total data for corresponding to target road in determining road net data
Position corresponding with ownership geographical location is respectively associated into the first route in data, so that the first route includes in road net data
The total data of corresponding target road, the first route includes all characteristic informations of target road.
Navigation information between the navigation spots and the first route of the road network facility that step 205, acquisition update.
Navigation information between the navigation spots and the first route of the road network facility of update may include navigation spots and the first via
Meet the information of the road of current condition between line, navigation information may include meeting current item between navigation spots and the first route
Information, the navigation informations such as the traffic lights quantity that the actual range of the road of part, the distance for needing walking, needs pass through may include
It is one or more.
The navigation information that step 206, analysis obtain, judges whether navigation information meets preset condition, if so, executing step
Rapid 207；Otherwise, the operation of the navigation information is terminated.
Preset condition may include: that actual range is nearest, need the traffic lights quantity that the distance of walking is minimum, needs to pass through
Minimum etc., road net data processing unit analyzes each navigation information of acquisition, determines the navigation information for meeting preset condition
Step 207 is executed afterwards.
Step 207, be with the tie point of navigation information corresponding determining on the first route the second route first end, with more
The navigation spots of new road network facility are the second end of the second route, generate the second route.
Navigation information between the navigation spots and the first route of the road network facility of update includes navigation spots and the first route
Between meet current condition road information, there are at least one to connect with the first route for the road of the current condition of the satisfaction
Point, after obtaining meeting the navigation information of preset condition, to correspond to the tie point of navigation information on the first route as the second route
First end, with the navigation spots of the road network facility of update be the second route second end, generate the second route；It is with overpass
Example is illustrated, and refers to Fig. 8 a, and Fig. 8 a respectively illustrates the second tunnel of the navigation spots A and the first route HI of connection overpass
Line AM, connect overpass navigation spots B and the first route HI the second route B N, connect the navigation spots E and the of overpass
The second route EX of one route JK and the second route FY, the M point for connecting the navigation spots F and the first route JK of overpass are the
It is the first via that the tie point of one route HI and the second route AM, N point, which are the tie point of the first route HI and the second route B N, X point,
The tie point of line JK and the second route EX, Y point are the tie point of the first route JK and the second route FY.
Second route is associated with to the first route by step 208.
Increase the information that the second route is connected to the first route by tie point in the characteristic information of the second route,
The letter that the second route is connected to the first route by tie point can also be increased in the characteristic information of the first route simultaneously
Breath.
Step 209 carries out the road network facility, the first route and the second route of update in road net data with target road
Mixing operation obtains fusion road net data.
Mixing operation, which refers to, increases to the road network facility, the first route and the second route of update in road net data, merges road
The first route, the second route in network data, which are used to replace target road when operational order is navigated in response to become, determines navigation road
Route used in line, the technical solution of the present embodiment are based on fusion road net data, so that original road net data and newly-increased road
The data of net facility (the road network facility updated) exist simultaneously.
For the present embodiment scene set forth above, road net data processing unit is according to corresponding with the road network facility of update
What the characteristic information of target road generated corresponding target road includes the first via that the data of target road are corresponded in road net data
Line, and the second route of road network facility and the first route that connection updates is generated, by the road network facility of update, the first route and the
Two routes carry out mixing operation with target road in road net data and obtain merging road net data, (i.e. former not to target road
Have road) sequence of maneuvers such as interrupted, modified, being moved, being deleted in the case where, the road network facility that update can be realized is (i.e. new
Increase road network facility) it is merged with original road net data, the prior art is avoided by the road network facility of update is articulated to original road network
A large amount of manpower/the material resources spent needed for data reduce the workload of road net data operation and maintenance management work.
Embodiment two
The present embodiment is based on embodiment one, draws for how to be based on fusion road net data when receiving map load instruction
The scene of map processed proposes the technical solution solved.
The first route, the second route in the present embodiment in fusion road net data have stealthy attribute, and stealthy attribute is used for
Indicate that shielding is drawn using the first route and the second route when drawing includes the region of the first route and the second route；It is former
There is the legacy data in road net data that there is visual attribute, it is seen that attribute is used to indicate when drawing includes the region of legacy data
It is carried out using legacy data.
Referring to the road net data processing method shown in Fig. 5, comprising the following steps:
Step 301, according to the data of the road network facility updated in road net data and road network, determine in the road of road network with
The corresponding target road of road network facility of update.
Step 302, the characteristic information for analyzing target road, obtain geographical location and the shape of target road.
Step 303, the geographical location based on target road and shape generate the first route.
Step 304, the ownership geographical location for determining the data that target road is corresponded in road net data, by data correlation to
Position corresponding with ownership geographical location in one route.
Navigation information between the navigation spots and the first route of the road network facility that step 305, acquisition update.
The navigation information that step 306, analysis obtain, judges whether navigation information meets preset condition, if so, executing step
Rapid 307；Otherwise, the operation of the navigation information is terminated.
Step 307, be with the tie point of navigation information corresponding determining on the first route the second route first end, with more
The navigation spots of new road network facility are the second end of the second route, generate the second route.
Second route is associated with to the first route by step 308.
Step 309 carries out the road network facility, the first route and the second route of update in road net data with target road
Mixing operation obtains fusion road net data.
Step 310 receives and merges the instruction of the target area of road network in graphical interfaces load.
Graphical interfaces refers to the graphic user interface of user equipment, and user can be by under the graphic user interface of user equipment
Send out load instruction.
Step 311, the instruction that the target area of road network is merged in response to loading in graphical interfaces, whether detection target area
Road network facility including update, if detecting, target area includes the road network facility updated, thens follow the steps 312, otherwise, jumps
To step 313.
The road net data of target area is corresponded in step 312, reading fusion road network, and shield reading there is stealthy attribute
The first route and the second route, jump to step 314.
Step 313 reads the road net data that target area is corresponded in fusion road network.
In this step, due to not detecting the road network facility of update in target area, corresponding target area
It does not include the first route and the second route with stealthy attribute in road net data.
Step 314, the map that target area is drawn based on read road net data.
The map for drawing obtained target area is presented to the user by step 315 by the graphical interfaces of user equipment.
It is illustrated by taking overpass as an example, refers to Fig. 9 and Figure 10, Figure 10 shows overpass in the map of drafting
On form, when base map is drawn, shielding using there is stealthy attribute the first route HI, the first route JK, the second route AM,
Second route B N, the second route EX, the second route FY, use the legacy data in original road net data with visual attribute
HI, JK etc. are drawn.
For the present embodiment scene set forth above, road net data processing unit passes through will merge in road net data first
Route, the second route are set as having new attribute: stealthy attribute, and original road net data and do not have this stealthy attribute, connect
It receives when graphical interfaces loads the instruction of the target area of fusion road network, if detecting, target area includes the road network of update
Facility then reads in fusion road network and corresponds to the road net data of target area, and shields the first via for reading and having stealthy attribute
Line and the second route draw the map of target area based on read road net data；Include if target area is not detected
The road network facility of update is then read the road net data for corresponding to target area in fusion road network, is drawn based on read road net data
The map of target area processed；When the present embodiment is based on fusion road net data progress base map drafting, drawing has stealthy attribute
The first route, the second route.
Embodiment three
The present embodiment be based on embodiment one, for receive navigation operational order when how by fusion road net data based on
The scene for calculating route road proposes the technical solution solved.
Referring to the road net data processing method shown in Fig. 6, comprising the following steps:
Step 401, according to the data of the road network facility updated in road net data and road network, determine in the road of road network with
The corresponding target road of road network facility of update.
Step 402, the characteristic information for analyzing target road, obtain geographical location and the shape of target road.
Step 403, the geographical location based on target road and shape generate the first route.
Step 404, the ownership geographical location for determining the data that target road is corresponded in road net data, by data correlation to
Position corresponding with ownership geographical location in one route.
Navigation information between the navigation spots and the first route of the road network facility that step 405, acquisition update.
The navigation information that step 406, analysis obtain, judges whether navigation information meets preset condition, if so, executing step
Rapid 407；Otherwise, the operation of the navigation information is terminated.
Step 407, be with the tie point of navigation information corresponding determining on the first route the second route first end, with more
The navigation spots of new road network facility are the second end of the second route, generate the second route.
Second route is associated with to the first route by step 408.
Step 409 carries out the road network facility, the first route and the second route of update in road net data with target road
Mixing operation obtains fusion road net data.
Step 410 receives navigation operational order.
Navigation operational order may come from user equipment, such as smart phone, tablet computer, wearable device (such as intelligence
Energy glasses, smartwatch etc.) or vehicle mobile terminals etc., user can issue navigation by the graphic user interface of user equipment
Operational order.
Step 411, the navigation operational order in response to receiving determine in fusion road net data from fusion road net data
Road net data corresponding with the navigation area of navigation operational order instruction.
Whether step 412, detection navigation area include the road network facility updated, if detecting, navigation area includes updating
Road network facility thens follow the steps 413, otherwise, jumps to step 415.
Step 413 reads the corresponding road net data of navigation area, and shields reading target road.
In the step, navigation area includes the road network facility updated, correspondingly, the corresponding road net data of navigation area
It include the first route, the second route and the target road of the corresponding road network facility updated, in turn, the road network read in this step
It include the first route, the second route of the corresponding road network facility updated in data；Determining that navigation area includes the road updated
When net facility, the corresponding road net data of navigation area is read, and shielding reading is led in the corresponding road net data of navigation area
The target road that navigating area domain includes；It is illustrated by taking overpass as an example, refers to Fig. 9, when calculating guidance path, use tool
There are the first route HI, the first route JK, the second route AM, the second route B N, the second route EX, the second route FY of stealthy attribute
The calculating of guidance path is participated in, while being shielded using legacy data (such as target in original road net data with visual attribute
Road HI, JK) etc. drawn, that is, use first via line HI, the first route JK, the second route AM, the second route B N, the second tunnel
Line EX, the second route FY, which replace target road HI, JK, becomes route used in determining navigation routine.
Step 414, the first route based on the corresponding road network facility updated for including in read road net data, second
Route calculation navigation routine；Jump to step 417.
Step 415 reads the corresponding road net data of navigation area.
Step 416 calculates navigation routine based on read road net data.
The navigation routine being calculated is returned to user equipment by step 417.
For example for, above-mentioned navigation operational order will then be calculated from the graphic user interface of user equipment
To navigation routine be presented to the user by the graphical interfaces of user equipment.
For the present embodiment scene set forth above, road net data processing unit is when receiving navigation operational order, inspection
Survey whether navigation area includes the road network facility updated, navigation area includes the road network facility updated if detecting, reading is led
The corresponding road net data in navigating area domain, and reading target road is shielded, more based on the correspondence for including in read road net data
First route of new road network facility, the second route calculation navigation routine；If it includes the road network updated that navigation area, which is not detected,
Facility then reads the corresponding road net data of navigation area, calculates navigation routine based on read road net data；It will finally calculate
Obtained navigation routine is presented to the user by the graphical interfaces of user equipment.
Example IV
Road net data is typically from special data supplier, and Map Service quotient does original road net data
The road net data that operation can not be safeguarded with data supplier synchronizes, and road net data is updated provided by data supplier
It is to have carried out the operation such as increasing, modify data on the basis of original road net data, this will cause provided by data supplier
Road net data is updated, is largely conflicted with the road net data generation of Map Service quotient oneself maintenance, and in order to solve these punchings
It is prominent to need to expend a large amount of workload again.
The present embodiment is based on embodiment one, and the technical solution solved is proposed for the problems in following scene: supplying in data
When quotient being answered to be updated original road net data, it is desirable to avoid more new data and Map Service provided by data supplier
The road net data of quotient (such as Tencent) oneself maintenance generates a large amount of conflicts, reduces the workload that road net data updates operation.
Referring to the road net data processing method shown in Fig. 7, comprising the following steps:
Step 501, according to the data of the road network facility updated in road net data and road network, determine in the road of road network with
The corresponding target road of road network facility of update.
Step 502, the characteristic information for analyzing target road, obtain geographical location and the shape of target road.
Step 503, the geographical location based on target road and shape generate the first route.
Step 504, the ownership geographical location for determining the data that target road is corresponded in road net data, by data correlation to
Position corresponding with ownership geographical location in one route.
Navigation information between the navigation spots and the first route of the road network facility that step 505, acquisition update.
The navigation information that step 506, analysis obtain, judges whether navigation information meets preset condition, if so, executing step
Rapid 507；Otherwise, the operation of the navigation information is terminated.
Step 507, be with the tie point of navigation information corresponding determining on the first route the second route first end, with more
The navigation spots of new road network facility are the second end of the second route, generate the second route.
Second route is associated with to the first route by step 508.
Step 509 carries out the road network facility, the first route and the second route of update in road net data with target road
Mixing operation obtains fusion road net data.
Step 510 obtains the road net data updated.
Step 511 parses the road net data of update, judges whether the road net data updated includes target road
More new data, if so, thening follow the steps 512, otherwise, operation terminates.
Step 512 updates target road, and the spy according to updated target road according to the more new data of target road
Levy the first route of information update.
Step 513, road network facility and updated first route according to update update the second route.
Fig. 9 is referred to, when being updated to original road net data, if being related to target road HI and/or JK more
Newly, then only need respectively to target road HI and/or JK, the first route HI, the first route JK, the second route AM, the second route B N,
Second route EX, the second route FY are updated.
For the present embodiment scene set forth above, the technical solution of the present embodiment is based on fusion road net data, so that former
There are road net data and the data of newly-increased road network facility (the road network facility updated) to exist simultaneously, in data supplier to original
When road net data is updated, if the road net data updated includes the more new data of target road, Map Service quotient is only
It needs respectively to be updated target road, the first route and the second route, avoids more new data provided by data supplier
Largely conflict with the road net data generation of Map Service quotient oneself maintenance, reduces the work that road net data updates operation
Amount.
Embodiment five
The present embodiment is based on embodiment one to example IV, and the technical side solved is proposed for the problems in following scene
Case: it is desirable that in the case where the sequence of maneuvers such as not interrupted, modifying, move, delete to target road (i.e. original road), it is real
The navigational facility (i.e. above-mentioned road network facility) now updated is merged with original road net data, and is avoided that the prior art will update
Navigational facility be articulated to a large amount of manpower/material resources spent needed for original road net data；And how to realize based on fusion road network
The base map of data is drawn, navigation calculates and data update.
The road net data processing method that the present embodiment is recorded, comprising the following steps:
The first step, stealthy mounting leading line (the second i.e. above-mentioned route) of production:
Define stealthy leading line: so-called stealth line has visible shape in the production process, is only set as its attribute
The invisible attribute appointed does not draw all lines for being set as stealthy line when base map is drawn, the still conduct in navigation
Common navigation line computation navigation；Referring to the schematic diagram of the stealthy mounting route shown in Fig. 8 a and 8b, make stealthy leading line AM,
BN, EX, FY do not interrupt line HI and JK in mounting point M, N, X, Y location, one end of stealthy leading line are only ridden over road HI
On JK.
Second step, production with main road similar shape stealthy leading line (the first i.e. above-mentioned route):
Referring to the schematic diagram of the stealthy leading line with main road similar shape shown in Fig. 9, make stealth leading line HMNI by HM,
MN, NI link, production stealth leading line JXYK link JX, XY, YK, and stealthy leading line HMNI and HI shape wants completely the same,
Stealthy leading line JXYK and JK shape wants completely the same (in order to illustrate in Fig. 9, deliberately by the shape of stealthy leading line HMNI and JXYK
Shape offset)；The present embodiment is not due to making any modification to main road net, so it is not necessary to modify any attached navigation data, work
Work amount is extremely low；The advantages of the present embodiment is to pass through implicit Link (the i.e. first navigation in the case where not changing original road network
Line, the second leading line), realize the rapid fusion of newly-increased navigational facility and original road network, the labor workload needed is extremely low,
It can be with rapid fusion into new road network, almost without labor workload when version data reach under data supplier.
Third step, base map are drawn:
When base map is drawn, only draws and increase normal navigation line, stealthy leading line is not drawn, referring to the street crossing day shown in Figure 10
Schematic diagram of the bridge on the map of drafting.
Newly-increased navigational facility is used in 4th step, navigation:
In navigation, different navigation algorithms is handled inconsistent；Most of navigation algorithm can be fully according to original navigation
Logic calculation, the modification without in addition making on algorithm can normally calculate navigation；Some navigation algorithms need to be navigated according to itself
Logic feature does some case analyses, and modifying a small amount of code can normal use.
The production that 5th step, main body road network need when updating:
Main body road network updates, if not being related to the change of HI, JK, it is not necessary to modify can directly be used；If be related to
To the change of HI, JK, such as the shape of HI, JK are had modified, then needs to safeguard that HMNI consistent with HI, JXYK and JK are consistent simultaneously.
The work of this part can write an automated procedures to run, so that it may be not necessarily to labor workload.
It should be noted that other navigational facilities, such as parking lot, gas station, market, underpass, station etc. all may be used
To make stealthy leading line with similar approach, referring to the schematic diagram of the stealthy leading line in the parking lot shown in Figure 11.
For the present embodiment scene set forth above, the technical solution of the present embodiment can be real in a kind of cleverly method
Navigational facility is now integrated into road network, greatly reduces labor workload.
Embodiment six
Corresponding with the record of previous embodiment, the present embodiment also records a kind of road net data processing unit, road net data
Processing unit can be used for executing the road net data processing method of the embodiment of the present invention, and road net data processing unit can be as reality
The equipment applying the embodiment of the present invention and being specially arranged can also be built in inside user equipment, and user equipment may include intelligence
Mobile phone, tablet computer, wearable device (such as smart glasses, smart watches) or vehicle mobile terminals, road net data processing dress
The background server that can also be user's application is set, referring to Figure 12, road net data processing unit includes:
Determining module 601 determines road network for the data according to the road network facility updated in road net data and road network
Target road corresponding with the road network facility of update in road；
Generation module 602, for generating the first route of corresponding target road according to the characteristic information of target road, according to
First route and the road network facility of update generate the second route of road network facility and the first route that connection updates, the first route packet
Include the data that target road is corresponded in road net data；
Fusion Module 603, road network facility, the first route and the second route for that will update in road net data with target
Road carries out mixing operation and obtains fusion road net data；Wherein, the first route in road net data is merged, the second route is used for
Replacement target road, which becomes, when response navigation operational order determines route used in navigation routine.
In above scheme, road net data processing unit is believed according to the feature of target road corresponding with the road network facility of update
What breath generated corresponding target road includes the first route of the data of target road being corresponded in road net data, and generate connection and update
Road network facility and the first route the second route, by the road network facility, the first route and the second route of update in road net data
In with target road carry out mixing operation obtain merging road net data, target road (i.e. original road) is not interrupted,
Modification, it is mobile, the sequence of maneuvers such as delete in the case where, can be realized the road network facility (i.e. newly-increased road network facility) of update with it is original
The fusion of road net data, based on fusion road net data, so that original road net data and the newly-increased road network facility (road network updated
Facility) data exist simultaneously, avoid cost needed for the road network facility of update is articulated to original road net data by the prior art
A large amount of manpower/material resources, reduce road net data operation and maintenance management work workload.
On the basis of the above embodiments, generation module 602 is also used to:
The characteristic information for analyzing target road, obtains geographical location and the shape of target road；Ground based on target road
Position and shape are managed, the first route is generated；The ownership geographical location for determining the data that target road is corresponded in road net data, will count
According to association into the first route with the corresponding position in ownership geographical location.
On the basis of the above embodiments, generation module 602 is also used to:
Obtain the navigation information between the navigation spots and the first route of the road network facility updated；The navigation letter that analysis obtains
Breath determines the navigation information for meeting preset condition；With the tie point of determining navigation information corresponding on the first route for the second tunnel
The first end of line take the navigation spots of the road network facility of update as the second end of the second route, generates the second route；By the second route
It is associated with to the first route.
Embodiment seven
The present embodiment is based on embodiment six, in the present embodiment, merges the first route, the second route tool in road net data
There is stealthy attribute；Referring to Figure 13, the road net data processing unit that the present embodiment is recorded also include determining module 601 in Figure 12,
Generation module 602 and Fusion Module 603, and those functional modules also have respective action documented by embodiment six, herein
On the basis of, the road net data processing unit of the present embodiment record further include:
Drafting module 604 detects target for the instruction of the target area in response to loading fusion road network in graphical interfaces
Whether region includes the road network facility updated；When determining that target area includes the road network facility of update, read in fusion road network
The road net data of corresponding target area, and shield the first route and the second route for reading and there is stealthy attribute；Based on being read
The road net data taken draws the map of target area.
On the basis of the above embodiments, device further include:
Operation module 605 of navigating is melted for the navigation operational order in response to receiving from determination in road net data is merged
It is combined road net data corresponding with the navigation area of navigation operational order instruction in network data；Detect whether navigation area includes more
New road network facility；When determining that navigation area includes the road network facility updated, the corresponding road net data of navigation area is read, and
The target road that navigation area includes is read in shielding；Based on the corresponding road network facility updated for including in read road net data
The first route, the second route calculation navigation routine.
On the basis of the above embodiments, device further include:
Update module 606 parses the road net data of update for obtaining the road net data updated；When determine more
When new road net data includes the more new data of target road, target road and root are updated according to the more new data of target road
The first route is updated according to the characteristic information of updated target road；According to the road network facility of update and the updated first via
Line updates the second route.
In practical applications, determining module 601, generation module 602, Fusion Module 603, drafting module 604, navigation operation
Module 605 and update module 606, can be by central processing unit (CPU), the microprocessor positioned at road net data processing unit
(MPU), specific integrated circuit (ASIC) or field programmable gate array (FPGA) etc. are realized.
Embodiment eight
The present embodiment records a kind of computer-readable medium, can for ROM (for example, read-only memory, FLASH memory,
Transfer device etc.), magnetic storage medium (for example, tape, disc driver etc.), optical storage medium is (for example, CD-ROM, DVD-
ROM, paper card, paper tape etc.) and other well-known types program storage；Computer is stored in computer-readable medium to be held
Row instruction (such as binary system executable instruction of the projections such as Tencent's video application), when executing an instruction, causes at road net data
Managing at least one processor of device and executing includes operation below:
According to the data of the road network facility updated in road net data and road network, the road in the road of road network with update is determined
The corresponding target road of net facility；
The first route that corresponding target road is generated according to the characteristic information of target road, according to the first route and update
Road network facility generates the second route of the road network facility that connection updates and the first route, and the first route includes corresponding in road net data
The data of target road；
The road network facility, the first route and the second route of update are subjected to mixing operation with target road in road net data
Obtain fusion road net data；Wherein, the first route in road net data is merged, the second route is used in response navigation operational order
When replacement target road become determine navigation routine used in route.
In conclusion characteristic information of the road net data processing unit according to target road corresponding with the road network facility of update
Generate corresponding target road includes the first route of the data of target road being corresponded in road net data, and generate what connection updated
Second route of road network facility and the first route, by the road network facility, the first route and the second route of update in road net data
Mixing operation is carried out with target road to obtain merging road net data, original road is not being interrupted, is being modified, moved, deleted
In the case where equal sequence of maneuvers, the road network facility (i.e. newly-increased road network facility) of update and melting for original road net data can be realized
It closes, based on fusion road net data, so that the data of original road net data and newly-increased road network facility (the road network facility updated)
Exist simultaneously, avoid a large amount of manpowers of cost needed for the road network facility of update is articulated to original road net data by the prior art/
Material resources reduce the workload of road net data operation and maintenance management work.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention
Formula.Moreover, the present invention, which can be used, can use storage in the computer that one or more wherein includes computer usable program code
The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (12)
1. a kind of road net data processing method, which is characterized in that the described method includes:
According to the data of the road network facility updated in road net data and road network, determine in the road of the road network with the update
The corresponding target road of road network facility；
The first route that the corresponding target road is generated according to the characteristic information of the target road, according to first route
And the road network facility of the update generates the second route of the road network facility and first route that connect the update, described the
One route includes the data that the target road is corresponded in the road net data；
By the road network facility of the update, first route and second route in the road net data with the target
Road carries out mixing operation and obtains fusion road net data；Wherein, first route in the fusion road net data, described the
Two routes, which are used to replace the target road when operational order is navigated in response to become, determines route used in navigation routine.
2. the method according to claim 1, wherein described generate institute according to the characteristic information of the target road
State corresponding first route of target road, comprising:
The characteristic information for analyzing the target road obtains geographical location and the shape of the target road；
Geographical location and shape based on the target road generate the first route；
The ownership geographical location for determining the data that the target road is corresponded in the road net data, by the data correlation to institute
State position corresponding with the ownership geographical location in the first route.
3. the method according to claim 1, wherein described according to first route and the road network of the update
Facility generates the second route of the road network facility and first route that connect the update, comprising:
Obtain the navigation information between the navigation spots of the road network facility of the update and first route；
The navigation information of the acquisition is analyzed, determines the navigation information for meeting preset condition；
To correspond to the first end that the tie point of the navigation information of the determination is second route on first route, with institute
The navigation spots for stating the road network facility of update are the second end of second route, generate second route；
Second route is associated with to first route.
4. the method according to claim 1, wherein first route, institute in the fusion road net data
Stating the second route has stealthy attribute；The method also includes:
In response to graphical interfaces load it is described fusion road network target area instruction, detect the target area whether include
The road network facility of the update；
When determining that the target area includes the road network facility of the update, reads in the fusion road network and correspond to the target
The road net data in region, and shield first route and second route for reading and there is stealthy attribute；
The map of the target area is drawn based on read road net data.
5. the method according to claim 1, wherein the method also includes:
In response to the navigation operational order received, from determined in the fusion road net data in the fusion road net data with institute
State the corresponding road net data of navigation area of navigation operational order instruction；
Detect the navigation area whether include the update road network facility；
When determining that the navigation area includes the road network facility of the update, the corresponding road net data of the navigation area is read,
And it shields and reads the target road that the navigation area includes；
First route of road network facility based on the correspondence update for including in read road net data, described second
Route calculation navigation routine.
6. the method according to claim 1, wherein the method also includes:
The road net data updated is obtained, the road net data of the update is parsed；
When the road net data for determining the update includes the more new data of the target road, more according to the target road
New data updates the target road, and updates first route according to the characteristic information of updated target road；
According to the road network facility of the update and updated first route, second route is updated.
7. a kind of road net data processing unit, which is characterized in that described device includes:
Determining module determines the road of the road network for the data according to the road network facility updated in road net data and road network
The corresponding target road of road network facility of update described in Lu Zhongyu；
Generation module, for generating the first route of the corresponding target road, root according to the characteristic information of the target road
The road network facility and first route for connecting the update are generated according to first route and the road network facility of the update
Second route, first route include the data that the target road is corresponded in the road net data；
Fusion Module, for by the road network facility of the update, first route and second route in the road network number
Mixing operation is carried out with the target road in obtain merging road net data；Wherein, described in the fusion road net data
First route, second route, which are used to replace the target road when operational order is navigated in response to become, determines navigation routine
Used route.
8. device according to claim 7, which is characterized in that the generation module is also used to:
The characteristic information for analyzing the target road obtains geographical location and the shape of the target road；Based on the target
The geographical location of road and shape generate the first route；Determine the data that the target road is corresponded in the road net data
Belong to geographical location, by the data correlation into first route position corresponding with the ownership geographical location.
9. device according to claim 7, which is characterized in that the generation module is also used to:
Obtain the navigation information between the navigation spots of the road network facility of the update and first route；Analyze the acquisition
Navigation information determines the navigation information for meeting preset condition；To correspond to the navigation information of the determination on first route
Tie point is the first end of second route, is the second of second route with the navigation spots of the road network facility of the update
End generates second route；Second route is associated with to first route.
10. device according to claim 7, which is characterized in that first route, institute in the fusion road net data
Stating the second route has stealthy attribute；Described device further include:
Drafting module detects the mesh for the instruction of the target area in response to loading the fusion road network in graphical interfaces
Mark region whether include the update road network facility；When determining that the target area includes the road network facility of the update,
It reads in the fusion road network and corresponds to the road net data of the target area, and shield and read described the with stealthy attribute
One route and second route；The map of the target area is drawn based on read road net data.
11. device according to claim 7, which is characterized in that described device further include:
Navigation operation module, for the navigation operational order in response to receiving, from the fusion road net data described in determination
Merge road net data corresponding with the navigation area of the navigation operational order instruction in road net data；Detect the navigation area
Whether include the update road network facility；When determining that the navigation area includes the road network facility of the update, described in reading
The corresponding road net data of navigation area, and shield and read the target road that the navigation area includes；Based on being read
Road net data in include the correspondence update road network facility first route, second route calculation navigation road
Line.
12. device according to claim 7, which is characterized in that described device further include:
Update module parses the road net data of the update for obtaining the road net data updated；When determination is described more
When new road net data includes the more new data of the target road, the mesh is updated according to the more new data of the target road
Road is marked, and first route is updated according to the characteristic information of updated target road；It is set according to the road network of the update
It applies and updated first route, updates second route.
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| CN107192392A (en) * | 2017-05-26 | 2017-09-22 | 山东浪潮云服务信息科技有限公司 | The update method and device of a kind of road net data |
| CN110110019B (en) * | 2018-01-31 | 2021-10-29 | 北京四维图新科技股份有限公司 | Road network topology data updating method and device |
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