CN103852083A - Method for increasing correlated multi-intersection attributes in data of navigation electronic map - Google Patents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/28—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network with correlation of data from several navigational instruments
- G01C21/30—Map- or contour-matching
- G01C21/32—Structuring or formatting of map data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3667—Display of a road map
- G01C21/367—Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker
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Abstract
The invention provides a method for increasing correlated multi-intersection attributes in data of a navigation electronic map. The method comprises the following steps: analyzing a partial road network of a turning direction containing a plurality of multi-intersection attributes; a plurality of paths and newly-added correlated turning directions are additionally defined on a partial road; and revising a many-to-one relation among the multi-intersection attributes and the turning direction into a one-to-one relation so that road path induction information of a plurality of intersections which are very close is simple and accurate. The method is used for dispersedly correlating a plurality of intersection amplifying maps and direction road sign attributes correlated with the previous turning direction A on the different turning directions through the means of road copying and the like, so that the turning direction can not be modified and the properties of only one intersection are included, and furthermore, a function of adding the correlated multi-intersection attributes is easily added on the premise that a navigation path algorithm is not modified, and the plurality of intersections which are very close are very simple and accurate in a broadcasting process.
Description
Technical field
The present invention relates to data in navigation electronic map field, particularly relate to a kind of method that increases associated Multiple Intersections attribute in data in navigation electronic map.
Background technology
It is reported, by the first quarter in 2012, China's Private Car owning amount reached 8,650 ten thousand.Whole nation passenger car sales volume increases year after year.Along with the development of automobile industry, auto navigation industry is also rapidly developed, as map of navigation electronic accounting 20% left and right in whole auto navigation industrial chain of auto navigation core.
In map of navigation electronic development process, will produce and manyly new can promote ground plot quality, strengthen the figure layer information that hommization is considered.Map of navigation electronic physical format is the map of navigation electronic form using in navigational system.In the figure layer information increasing in map of navigation electronic, when inevitably there will be some as crossing enlarged drawing, direction road signs association the attributed graph layer at crossing in multiple actual road networks.But in the crossing data of current domestic Duo Jia map datum manufacturer, only comprise an actual road network crossing.And turn to data in our map of navigation electronic physical format data, also just comprise a crossing.If comprise multiple crossings in turning to, need to revise map of navigation electronic physical format, thereby also can have influence on the path planning algorithm of navigation engine.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of method that increases associated Multiple Intersections attribute in data in navigation electronic map, thereby accomplish under the prerequisite without modification guidance path algorithm, easily add the function of associated Multiple Intersections attribute, make the very near some crossings of distance more accurately succinct in the time reporting.
A method that increases associated Multiple Intersections attribute in data in navigation electronic map, comprises the following steps:
Step 1, be defined as follows keyword:
Road arc: above the roadside, road that provides of figure business, the topology element taking out according to traffic flow direction, show this roadside, road submit through-flow to the situation in this roadside, road of coming in and going out;
Turn to: formed by two end to end road arcs in logic that join end to end and comprise, comprise direction information and path induction information; Multiple Intersections attribute: referring to have many crossing enlarged drawing, the direction road signs objects that stop road, is a kind of path induction information;
Turn to corresponding sub-road network: refer in particular to through a certain and turn to, its degree of depth is corresponding to turning to corresponding Multiple Intersections attribute to stop valid trace roadside number in road sequence, the tree type road network intercepting out from whole road networks;
Fork path: turn in corresponding sub-road network, the paths from the termination road that turns to a certain end road of this sub-road network, is made up of many roads that join end to end;
A type fork path: on this fork path, only have the termination road sequence process of a Multiple Intersections attribute;
Type B fork path: on this fork path, have the termination road sequence process that is greater than 1 Multiple Intersections attribute;
Node arc: form the road arc in fork path, except the information of road arc itself, also comprised by number of times and the number of copy times of the termination road sequence process of Multiple Intersections attribute;
In crossing, connect: proposed by figure business, for connecting roadside, Dian road, inner crossing, crossing;
Step 2, from correspondence the existing turnaround sequence of multiple Multiple Intersections attributes, filter out need to process all and turn to, be put into set T in, concrete steps are as follows:
Step 21, all Multiple Intersections attributes that figure business is provided, be designated as valid trace road by initial current attribute road with stopping the non-interior link road segment mark in crossing in road sequence, and the road of mentioning in later step means effective road;
Step 22, according to each Multiple Intersections attribute rise stop road, corresponded to and there is turning to of identical termination road, now may occur that turns to a corresponding multiple Multiple Intersections attribute, this is turned to and puts into chained list L1, in L1, all nodes are all elements of set T;
Step 23, for this attribute that may relate to remote direction content of direction road signs, judge whether the content of direction shown in it meets merging condition, described merging condition is that the length accumulative total that stops road sequence exceedes preset threshold value;
Step 24, direction road signs to all satisfied merging conditions in step 23, all merge this direction road signs title, and corresponded to corresponding first crossing and turn to;
Step 25, direction road signs to the Multiple Intersections association that can not merge, and other Multiple Intersections relating attribute is all associated with first crossing and turns to, and this crossing turned to and be put in the chained list L1 that need to carry out Multiple Intersections association process simultaneously;
Step 3, according to corresponding Multiple Intersections attribute feature, the means that copy, turn to increase, revise by road network analysis, road, processing that set is all in T turns to related road network, is unique reaching thereby make the road of each associated Multiple Intersections attribute, and concrete steps are as follows:
Step 31, will put into set Rt from the t that turns to of set T, if turn to rising of t to stop road, in set T, another had been replicated while turning to t' processing, and had had and the t that turns to that turns to the identical actual geographic of t position
new, by all t that turn to
newjoin in set Rt;
Step 32, for set in Rt, turn to t, check each Multiple Intersections attribute of its correspondence, if through turning to t, can not stop road sequence along this Multiple Intersections attribute and arrive sequence the last item road, remove the corresponding relation that turns to t and this Multiple Intersections attribute;
Step 33, basis turn to the Multiple Intersections attribute that t is corresponding stop road sequence situation and turn to the follow-up actual road network situation of t, build and turn to the sub-road network that t is corresponding;
Step 34, by copying road, the method that copies road arc decomposes and turns to the sub-road network that t is corresponding;
Step 35, turn to and delete by increase the method turning to, recover the sub-road network connectivity after decomposing, guarantee to turn to all Multiple Intersections attributes that t is corresponding to be finally split into and to turn to t or turn to t
newcorresponding one by one, and be no longer the Multiple Intersections attribute that turns to t corresponding all.
By step 33, further refinement is as follows:
Step 331, create A type fork path according to the road sequence that only has a kind of Multiple Intersections attribute process, this fork path added and turns to the corresponding sub-road network of t, add up simultaneously every node arc on this fork path by through number of times;
Step 332, create Type B fork path according to the road sequence that has multiple Multiple Intersections attribute process, this fork path added and turns to the corresponding sub-road network of t, add up simultaneously every node arc on this fork path by through number of times;
Step 333, according to node arc on fork path by the number of times of process, calculate and turn to the number of times that in the corresponding sub-road network of t, on every fork path, each node arc need to be replicated.
By step 34, further refinement is as follows:
Step 341, according to the number of copy times of each node arc on every fork path, create roadside, the road arc object He Xin road object making new advances;
Step 342, corresponding to node arc and node arc road side attribute is copied in the object of roadside, corresponding newly-built road Hu He road;
Step 343, revise the part attribute of roadside, newly-built road Hu He road object according to sub-road network actual conditions after decomposing.
By step 35, further refinement is as follows:
Step 351, judgement turn to the type of the corresponding sub-road network of t, are all A type fork path if form its all forks path, and this sub-road network that turns to t is A type road network, otherwise is Type B road network;
Step 352, basis turn to its road network connectivity of type recovery of the corresponding sub-road network of t, to A type road network, leave corresponding one of them the Multiple Intersections attribute of original road sequence, node arc on other A type fork path replaces with new duplicated road, Type B road network is left to Type B fork path corresponding to original road, and the node arc on all A type fork paths replaces with the road that newly copies out.
The present invention is by decomposing the place segment path network that turns to that contains multiple Multiple Intersections attributes, on segment path, define separately some roads and newly-increased relevant turning to, many-to-one relationship by Multiple Intersections attribute and between turning to is modified to man-to-man relation, thereby makes at some path induction informations from the crossing place close to very more succinct accurately.The present invention is by means such as road copy, A upper associated multiple crossings enlarged drawing, direction road signs attribute will be turned to originally, (these turn to disperse to be associated with different turning to, identical at actual road network), can revise like this and turn to the characteristic that only comprises a crossing, thereby accomplish that without revising under the prerequisite of guidance path algorithm the function of easily adding associated Multiple Intersections attribute makes the very near some crossings of distance more accurately succinct in the time reporting.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention;
Fig. 2 is the idiographic flow schematic diagram of step 2 in the present invention;
Fig. 3 is the idiographic flow schematic diagram of step 3 in the present invention;
Fig. 4 is the idiographic flow schematic diagram of step 33 in the present invention;
Fig. 5 is the idiographic flow schematic diagram of step 34 in the present invention;
Fig. 6 is the idiographic flow schematic diagram of step 35 in the present invention.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment
As shown in Figure 1, a kind of method that increases associated Multiple Intersections attribute in data in navigation electronic map of the present invention, comprises the following steps:
Step 1, be defined as follows keyword:
Road arc: above the roadside, road that provides of figure business, the topology element taking out according to traffic flow direction, show this roadside, road submit through-flow to the situation in this roadside, road of coming in and going out;
Turn to: formed by two end to end road arcs in logic that join end to end and comprise, comprise direction information and path induction information; Multiple Intersections attribute: referring to have many crossing enlarged drawing and the direction road signs objects that stop road, is a kind of path induction information;
Turn to corresponding sub-road network: refer in particular to through a certain and turn to, its degree of depth is corresponding to turning to corresponding Multiple Intersections attribute to stop valid trace roadside number in road sequence, the tree type road network intercepting out from whole road networks;
Fork path: turn in corresponding sub-road network, the paths from the termination road that turns to a certain end road of this sub-road network, is made up of many roads that join end to end;
A type fork path: on this fork path, only have the termination road sequence process of a Multiple Intersections attribute;
Type B fork path: on this fork path, have the termination road sequence process that is greater than 1 Multiple Intersections attribute;
Node arc: form the road arc in fork path, except the information of road arc itself, also comprised by number of times and the number of copy times of the termination road sequence process of Multiple Intersections attribute;
In crossing, connect: proposed by figure business, for connecting roadside, Dian road, inner crossing, crossing;
Step 2, from correspondence the existing turnaround sequence of multiple Multiple Intersections attributes, filter out need to process all and turn to and be put in set T, concrete steps as shown in Figure 2:
Step 21, all Multiple Intersections attributes that figure business is provided, get rid of Multiple Intersections attribute and stop invalid road in road sequence, initial current attribute road is designated as to valid trace road with stopping the non-interior link road segment mark in crossing in road sequence, and the road of mentioning below all refers to effective road;
Step 22, stop road according to effectively rising of each Multiple Intersections attribute, corresponded to and there is turning to of identical termination road, now may occur that turns to a corresponding multiple Multiple Intersections attribute, this is turned to and puts into chained list L1, and this need to carry out all nodes in the chained list L1 of Multiple Intersections association process is all elements of set T;
Step 23, will judge for this attribute that may relate to remote direction content of direction road signs whether the content of direction shown in it meets merging condition, described merging condition is that the length accumulative total that stops road sequence exceedes preset threshold value;
Step 24, direction road signs to all satisfied merging conditions in step 23, all merge this direction road signs title, and corresponded to corresponding first crossing and turn to;
Step 25, direction road signs to the Multiple Intersections association that can not merge, and other Multiple Intersections relating attribute is all associated with first crossing and turns to, and this crossing turned to and be put in the chained list L1 that need to carry out Multiple Intersections association process simultaneously;
Step 3, according to corresponding Multiple Intersections attribute feature, the means that copy, turn to increase, revise by road network analysis, road, processing that set is all in T turns to related road network, is unique reaching thereby make the road of each associated Multiple Intersections attribute, concrete steps as shown in Figure 3:
Step 31, search it and work turning to of stopping that road obtains after copying according to be analyzed turning to, the t that turns to from set T is put into set Rt, be replicated when another turns to t' in processing set T if turn to rising of t to stop road, had and the t that turns to that turns to the identical actual geographic of t position
new, by all t that turn to
newjoin in set Rt;
Step 32, for set in Rt, turn to t, check each Multiple Intersections attribute of its correspondence, if through turning to t, can not stop road sequence along this Multiple Intersections attribute and arrive sequence the last item road, remove the corresponding relation that turns to t and this Multiple Intersections attribute;
Step 33, basis turn to the Multiple Intersections attribute that t is corresponding stop road sequence situation and turn to the follow-up actual road network situation of t, build and turn to the sub-road network that t is corresponding;
Step 34, by copying road, the method that copies road arc decomposes and turns to the sub-road network that t is corresponding;
Step 35, turn to and delete by increase the method turning to, recover the sub-road network connectivity after decomposing, guarantee to turn to all Multiple Intersections attributes that t is corresponding to be finally split into and to turn to t or turn to t
newcorresponding one by one, and be no longer the Multiple Intersections attribute that turns to t corresponding all.
As shown in Figure 4, by step 33, further refinement is as follows:
Step 331, create A type fork path according to the road sequence that only has a kind of Multiple Intersections attribute process, this fork path added and turns to the corresponding sub-road network of t, add up simultaneously every node arc on this fork path by through number of times;
Step 332, create Type B fork path according to the road sequence that has multiple Multiple Intersections attribute process, this fork path added and turns to the corresponding sub-road network of t, add up simultaneously every node arc on this fork path by through number of times;
Step 333, according to node arc on fork path by the number of times of process, calculate and turn to the number of times that in the corresponding sub-road network of t, on every fork path, each node arc need to be replicated.
As shown in Figure 5, by step 34, further refinement is as follows:
Step 341, according to the number of copy times of each node arc on every fork path, create roadside, the road arc object He Xin road object making new advances;
Step 342, corresponding to node arc and node arc road side attribute is copied in the object of roadside, corresponding newly-built road Hu He road;
Step 343, revise the part attribute of roadside, newly-built road Hu He road object according to sub-road network actual conditions after decomposing.
As shown in Figure 6, by step 35, further refinement is as follows:
Step 351, judgement turn to the type of the corresponding sub-road network of t, are all A type fork path if form its all forks path, and this sub-road network that turns to t is A type road network, otherwise is Type B road network;
Step 352, basis turn to its road network connectivity of type recovery of the corresponding sub-road network of t, to A type road network, leave corresponding one of them the Multiple Intersections attribute of original road sequence, node arc on other A type fork path replaces with new duplicated road, Type B road network is left to Type B fork path corresponding to original road, and the node arc on all A type fork paths replaces with the road that newly copies out.
The present invention is by means such as road copy, A upper associated multiple crossings enlarged drawing, direction road signs attribute etc. will be turned to originally, (these turn to disperse to be associated with different turning to, identical at actual road network), can revise like this and turn to the characteristic that only comprises a crossing, thereby accomplish without revising under the prerequisite of guidance path algorithm the function of easily adding associated Multiple Intersections attribute.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, therefore any trickle modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment all still belong in the scope of technical solution of the present invention.
Claims (4)
1. a method that increases associated Multiple Intersections attribute in data in navigation electronic map, is characterized in that comprising the following steps:
Step 1, be defined as follows keyword:
Road arc: above the roadside, road that provides of figure business, the topology element taking out according to traffic flow direction, show this roadside, road submit through-flow to the situation in this roadside, road of coming in and going out;
Turn to: formed by two end to end road arcs in logic that join end to end and comprise, comprise direction information and path induction information;
Multiple Intersections attribute: referring to have many crossing enlarged drawing and the direction road signs objects that stop road, is a kind of path induction information;
Turn to corresponding sub-road network: refer in particular to through a certain and turn to, its degree of depth is corresponding to turning to corresponding Multiple Intersections attribute to stop valid trace roadside number in road sequence, the tree type road network intercepting out from whole road networks;
Fork path: turn in corresponding sub-road network, the paths from the termination road that turns to a certain end road of this sub-road network, is made up of many roads that join end to end;
A type fork path: on this fork path, only have the termination road sequence process of a Multiple Intersections attribute;
Type B fork path: on this fork path, have the termination road sequence process that is greater than 1 Multiple Intersections attribute;
Node arc: form the road arc in fork path, except the information of road arc itself, also comprised by number of times and the number of copy times of the termination road sequence process of Multiple Intersections attribute;
In crossing, connect: proposed by figure business, for connecting roadside, Dian road, inner crossing, crossing;
Step 2, from correspondence the existing turnaround sequence of multiple Multiple Intersections attributes, filter out need to process all and turn to, be put into set T in, concrete steps are as follows:
Step 21, all Multiple Intersections attributes that figure business is provided, be designated as valid trace road by initial current attribute road with stopping the non-interior link road segment mark in crossing in road sequence, and the road of mentioning below all refers to effective road;
Step 22, stop road according to effectively rising of each Multiple Intersections attribute, corresponded to and there is turning to of identical termination road, now may occur that turns to a corresponding multiple Multiple Intersections attribute, this is turned to and puts into chained list L1, and this need to carry out all nodes in the chained list L1 of Multiple Intersections association process is all elements of set T;
Step 23, for this attribute that may relate to remote direction content of direction road signs, judge whether the content of direction shown in it meets merging condition, described merging condition is that the length accumulative total that stops road sequence exceedes preset threshold value;
Step 24, direction road signs to all satisfied merging conditions in step 23, all merge this direction road signs title, and corresponded to corresponding first crossing and turn to;
Step 25, direction road signs to the Multiple Intersections association that can not merge, and other Multiple Intersections relating attribute is all associated with first crossing and turns to, and this crossing turned to and be put in the chained list L1 that need to carry out Multiple Intersections association process simultaneously;
Step 3, according to corresponding Multiple Intersections attribute feature, the means that copy, turn to increase, revise by road network analysis, road, processing that set is all in T turns to related road network, is unique reaching thereby make the road of each associated Multiple Intersections attribute, and concrete steps are as follows:
Step 31, will put into set Rt from the t that turns to of set T, if turn to rising of t to stop road, in set T, another had been replicated while turning to t' processing, and had had and the t that turns to that turns to the identical actual geographic of t position
new, by all t that turn to
newjoin in set Rt;
Step 32, for set in Rt, turn to t, check each Multiple Intersections attribute of its correspondence, if through turning to t, can not stop road sequence along this Multiple Intersections attribute and arrive sequence the last item road, remove the corresponding relation that turns to t and this Multiple Intersections attribute;
Step 33, basis turn to the Multiple Intersections attribute that t is corresponding stop road sequence situation and turn to the follow-up actual road network situation of t, build and turn to the sub-road network that t is corresponding;
Step 34, by copying road, the method that copies road arc decomposes and turns to the sub-road network that t is corresponding;
Step 35, turn to and delete by increase the method turning to, recover the sub-road network connectivity after decomposing, guarantee to turn to all Multiple Intersections attributes that t is corresponding to be finally split into and to turn to t or turn to t
newcorresponding one by one, and be no longer the Multiple Intersections attribute that turns to t corresponding all.
2. a kind of method that increases associated Multiple Intersections attribute in data in navigation electronic map according to claim 1, is characterized in that further refinement is as follows by step 33:
Step 331, create A type fork path according to the road sequence that only has a kind of Multiple Intersections attribute process, this fork path added and turns to the corresponding sub-road network of t, add up simultaneously every node arc on this fork path by through number of times;
Step 332, create Type B fork path according to the road sequence that has multiple Multiple Intersections attribute process, this fork path added and turns to the corresponding sub-road network of t, add up simultaneously every node arc on this fork path by through number of times;
Step 333, according to node arc on fork path by the number of times of process, calculate and turn to the number of times that in the corresponding sub-road network of t, on every fork path, each node arc need to be replicated.
3. a kind of method that increases associated Multiple Intersections attribute in data in navigation electronic map according to claim 1, is characterized in that further refinement is as follows by step 34:
Step 341, according to the number of copy times of each node arc on every fork path, create roadside, the road arc object He Xin road object making new advances;
Step 342, corresponding to node arc and node arc road side attribute is copied in the object of roadside, corresponding newly-built road Hu He road;
Step 343, revise the part attribute of roadside, newly-built road Hu He road object according to sub-road network actual conditions after decomposing.
4. a kind of method that increases associated Multiple Intersections attribute in data in navigation electronic map according to claim 1, is characterized in that further refinement is as follows by step 35:
Step 351, judgement turn to the type of the corresponding sub-road network of t, are all A type fork path if form its all forks path, and this sub-road network that turns to t is A type road network, otherwise is Type B road network;
Step 352, basis turn to its road network connectivity of type recovery of the corresponding sub-road network of t, to A type road network, leave corresponding one of them the Multiple Intersections attribute of original road sequence, node arc on other A type fork path replaces with new duplicated road, Type B road network is left to Type B fork path corresponding to original road, and the node arc on all A type fork paths replaces with the road that newly copies out.
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| CN109073394A (en) * | 2016-03-31 | 2018-12-21 | 赫尔环球有限公司 | Definition to one or more gateways that the navigation data set for the map for indicating least partially overlapped geographic area is linked |
| WO2018086545A1 (en) * | 2016-11-09 | 2018-05-17 | 腾讯科技（深圳）有限公司 | Information identification method in navigation, terminal and computer storage medium |
| US11231293B2 (en) | 2016-11-09 | 2022-01-25 | Tencent Technology (Shenzhen) Company Limited | Method, terminal, and computer storage medium for identifying information during navigation |
| CN108709561A (en) * | 2018-04-15 | 2018-10-26 | 武汉中海庭数据技术有限公司 | A kind of matching algorithm of the different scale data based on global road network feature |
| US11486714B2 (en) | 2018-04-15 | 2022-11-01 | Wuhhan Kotel Big Date Corporation | Matching algorithm for data with different scales based on global road network features |
| CN110188152A (en) * | 2019-05-30 | 2019-08-30 | 北京百度网讯科技有限公司 | Electronic map road information processing method and device, electronic equipment, readable medium |
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