CN108009304A - The selection of complicated circuit and automatic processing method in a kind of marshaling yard - Google Patents
The selection of complicated circuit and automatic processing method in a kind of marshaling yard Download PDFInfo
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Abstract
The invention discloses the selection of complicated circuit and automatic processing method in a kind of marshaling yard, comprise the following steps：A, it is different according to the mutual spread pattern in the difference of car transferring system and departure yard, Receiving yaxd, switchyard, determine the architectural feature of marshalling yard's railway line；B, according to the exclusive spatial structure characteristic of marshalling yard, structure marshalling yard topological relation；C, on the basis of analysis marshalling yard's space layout and topological property, classify to marshalling yard's map space feature；D, according to the classification of marshalling yard's map space feature, the three big basic principles that marshalling yard's synthesis is chosen are established, realize the automated cartographic generalization of marshalling yard.The present invention is directed to architectural feature, topological characteristic and the architectural feature of marshalling yard, the three big basic principles that marshalling yard's synthesis is chosen are designed, are keeping accurately putting forward the automated cartographic generalization demand for meeting marshalling yard under arbitrary scale on the basis of the agent structure of marshalling yard is complete, topology connectivity is good.
Description
Technical field
The present invention relates to a kind of marshaling yard, the selection and automation of complicated circuit specifically in a kind of marshaling yard
Processing method.
Background technology
Marshaling yard is the core of railway terminal, is the collecting and distributing base compiled with train solution of wagon flow.According to statistics, lorry is once
In the full turnaround time, operation and residence time account for 70% AT STATION.Lorry will averagely carry out 5-6 times from entrucking to unloading
Shunting service, wherein accounting for more than 30% in marshalling yard operation residence time.During to improve operating efficiency and shorten Car Turnover
Between, the railway track design and construction complexity inside marshalling yard is high, this just gives marshalling yard's data of large scale Map Expression comprehensive
Conjunction reduces the staff to small scale and brings great difficulty.
Selection is the basis of automated map generalization.Marshalling yard's internal wiring belongs to the railway in traffic route, and early stage is selected
The grade and attribute for usually only considering road, i.e. standard single-rail railway, narrow gauge railway (multiple line) and narrow gauge railway (single line) are taken, it is special
Chosen when different according to condition-conclusion rule, Marc van Kreveld etc. are proposed on the basis that traffic route grade is accepted or rejected
On, whether the distance that calculating reservation road circuit node is surprisingly put is poor less than limiting, and otherwise accepts or rejects, and in the case where not producing new conflict situations
New road is added to avoid detour.The generally non-ascription of marshalling yard's internal wiring, it is clear that the various choice methods according to attribute
It is inapplicable.There are network meshes node strength value choosing method, road synthetic based on genetic algorithm etc. at present.But in marshalling yard
Portion's circuit not only has road network, also has the complicated map feature such as suspension line, tree-shaped segmental arc, and single algorithm is also difficult to obtain preferable
Accept or reject effect.
It is few to be limited to marshalling yard's quantity, less than hundred, researcher payes attention to inadequate and a large amount of in relation to traffic route and river in the whole nation
Flow water-based achievement in research and be not suitable for such key element again.And when carrying out automatic map generalization, this kind of key element can not return again
Keeping away to face, and this paper presents realize automated cartographic generalization of the marshalling yard under arbitrary scale for this.
The content of the invention
It is an object of the invention to provide the selection of complicated circuit and automatic processing method in a kind of marshaling yard, with
Solve the problems, such as proposed in the above background technology.
To achieve the above object, the present invention provides following technical solution：
The selection of complicated circuit and automatic processing method, comprise the following steps in a kind of marshaling yard：A, according to tune
Difference and departure yard, Receiving yaxd, the mutual spread pattern in switchyard of car system are different, determine the structure of marshalling yard's railway line
Feature；B, according to the exclusive spatial structure characteristic of marshalling yard, structure marshalling yard topological relation；C, in analysis marshalling yard space layout
On the basis of topological property, classify to marshalling yard's map space feature；D, according to point of marshalling yard's map space feature
Class, establishes the three big basic principles that marshalling yard's synthesis is chosen, and realizes the automated cartographic generalization of marshalling yard.
As the further scheme of the present invention：According to the difference of car transferring system and departure yard, Receiving yaxd, switchyard it is mutual
Phase spread pattern is different, and marshalling yard is three kinds of fundamental space structures：Lap siding, cross-arranging type and hybrid.
As further scheme of the invention：The selection of complicated circuit and automatic processing method be also in marshaling yard
Include the following steps：A. prepare marshalling yard's railway line data, in this step, prepare to need the large scale for carrying out integrated treatment
Marshalling yard's railway line data, data are all expressed in the form of line feature；B. marshalling yard's topological structure, topology preprocessing are built
Including the processing of segmental arc self intersection, node process of fitting treatment, remove T1 Repeated Line Tl, remove false node, delete redundant node, delete it is short outstanding
Line, structure topological Polygon.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is directed to architectural feature, the topological characteristic of marshalling yard
The three big basic principles chosen with architectural feature, design marshalling yard synthesis, keep the agent structure of marshalling yard is complete, topology even
The automated cartographic generalization demand for meeting marshalling yard under arbitrary scale is accurately put forward on the basis of the general character is good.
Brief description of the drawings
Fig. 1 a, Fig. 1 b, Fig. 1 c are three kinds of typical marshalling yard space structure schematic diagrames；
The railway line based on marshalling yard's space characteristics that Fig. 2 is the present invention chooses and process flow figure；
Fig. 3 is marshalling yard's internal wiring space characteristics schematic diagram；
Fig. 4 chooses and handles schematic diagram for marshalling yard's Road (broken end arc), wherein (a) is marshalling yard's railway before synthesis
Line schematic diagram, (b) are marshalling yard's railway line schematic diagram after automatically processing；
Fig. 5 chooses and handles schematic diagram for marshalling yard's Road (parallel arc), wherein (a) is marshalling yard's railway before synthesis
Line schematic diagram, (b) are marshalling yard's railway line schematic diagram after automatically processing；
Fig. 6 chooses and handles schematic diagram for marshalling yard's Road (with node arc), wherein (a) is marshalling yard's iron before synthesis
Route schematic diagram, (b) are marshalling yard's railway line schematic diagram after automatically processing；
Fig. 7 chooses and handles schematic diagram for marshalling yard's Road (similar arc), wherein (a) is marshalling yard's railway before synthesis
Line schematic diagram, (b) are marshalling yard's railway line schematic diagram after automatically processing；
Fig. 8 chooses and handles schematic diagram for marshalling yard's Road (mesh arc), wherein (a) is marshalling yard's railway before synthesis
Line schematic diagram, (b) are marshalling yard's railway line schematic diagram after automatically processing；(c) marshalling yard's railway line schematic diagram.
Fig. 9 is Syntheses choice results of the Fig. 3 from 1: 500 to 1: 10000；
Figure 10 is to contrast schematic diagram before and after certain city eastern station marshalling yard railway line data is extracted, wherein, (a) is to carry
Situation about withdrawing cash, (b) are the result extracted under synthesis to 1: 10000 engineer's scale.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
As shown in Figure 1, the clear and definite purposes of marshalling yard determines its space layout and structure.According to the difference of car transferring system with
And departure yard, Receiving yaxd, the mutual spread pattern in switchyard are different, marshalling yard can be divided into three kinds of fundamental space structures：Lap siding,
Cross-arranging type and hybrid, other structures may be regarded as the derivative of three of the above structure.
Lap siding marshalling yard, space structure are rendered as Receiving yaxd, switchyard, field sequence of setting out file arrangement, the type master
Want that route is parallel, circuit mesh intensity is big, as shown in Fig. 1 (a).Cross-arranging type marshalling yard, space structure are rendered as uplink and downlink to hair
Field row is in switchyard both sides or side, and the type main line ductility is strong, circuit mesh intensity is small, as shown in Fig. 1 (b).
Hybrid marshalling yard, space structure are Receiving yaxd and switchyard file, and uplink and downlink departure yard row is in switchyard both sides or one
Side, the type main line ductility is good, and circuit mesh intensity is big, as shown in Fig. 1 (c).
As shown in Fig. 2, railway line provided by the invention based on marshalling yard's space characteristics choose and processing method include with
Lower step：
Step 1：Prepare marshalling yard's railway line data.
In this step, prepare to need the large scale marshalling yard railway line data for carrying out integrated treatment, data are all with line
The form of key element is expressed.
Step 2：Build marshalling yard's topological structure.
In the collection and editing process of spatial data, some mistakes can inevitably occur.For example, same node
Or the same line has been digitized twice, it is adjacent face as occur crack or it is intersecting, do not close situations such as, these mistakes are past
Toward the Topology Errors such as false node, redundant node, suspension wire, T1 Repeated Line Tl can be produced, thus cause between the spatial data that collects
The topological relation of topological relation and actual atural object is not met, and influences quality and availability and the follow-up data processing of data.
Therefore, before topological relation is built, topology preprocessing, the topology preprocessing bag designed in the present invention need to be carried out to basic data
The processing of parantheses section self intersection, node process of fitting treatment, remove T1 Repeated Line Tl, remove false node, delete redundant node, delete short suspension wire,
Build topological Polygon etc..Topology preprocessing knowledge belongs to techniques known, and which is not described herein again.
Use the marshalling yard's data structure topological structure crossed by topology preprocessing.In general, marshalling yard's topological structure
Topological circuit can be divided into following three kinds：
1) arc is isolated, refers to that head and the tail node is unequal, and all only associates a segmental arc, that is, itself, such as L18, L19 in Fig. 3
Two segmental arcs；
2) arc is hung, refers to have in head and the tail node and only a node associates a segmental arc i.e. itself, in Fig. 3
The segmental arcs such as L1, L2, L3, L7, L17；
3) among arc, refer to head and the tail node have in addition to itself segmental arc other association segmental arcs, as the L4 in Fig. 3~
The segmental arcs such as L6, L9~L16.
Although the structure of topological structure belongs to techniques known, in order to make it easy to understand, hereafter still to marshalling yard
The structure of topological structure is simply introduced：
Include following 4 steps for the structure of marshalling yard's topological structure：
1. the loading and pretreatment of marshalling yard's data, including reject the data of attribute error, calculate the MBR of each segmental arc
(minimum outsourcing rectangle) etc..
2. the MBR sequences of radian, descending that all line targets are carried out according to maximum Y (axial coordinate) value of line target
Sequence.It is descending to be ranked up according to maximum X (axial coordinate) value when maximum y value is equal.
3. the foundation of node, segmental arc relation.Each segmental arc corresponds to two nodes, building topology relational tree and point, line topology
Message structure table is to express the topological correlation and topology connectivity between each node, segmental arc.
4. build polygon.With left-turn algorithm or right-hand rotation algorithm keeps track, generation polygon, the pass of structure polygon and segmental arc
System.So far, topological transitiveness basically forms.
Step 3：According to marshalling yard's architectural feature and topological relation, classify to marshalling yard's map feature.
On the basis of intensive analysis structure and topological characteristic, it is convenient follow-up automation select factors, essence can be concluded
Produce six kinds of marshalling yard's map features：Break end arc, with node arc, similar arc, mesh arc, parallel arc and trunk arc.
(1) break end arc.Refer to the segmental arc that initial and end node is not associated, i.e. orphan in topological characteristic in marshalling yard
Vertical arc, is mainly used for placing the equipment such as railway carriage of the long-term abandoned well as parts；The initial and end Connectivity of such arc is
" 1 ", not only without left polygon, but also without right polygon, such as segmental arc L18, L19 in Fig. 3.
(2) with node arc.Refer to the middle arc of the node all same of initial and end point connection in marshalling yard, and angle is smaller,
The cargo being mainly used for node arc between two cars transfers；The connectedness of such arc initial and end node is " 3 ", left polygon and
Right polygon, wherein side Bu Kong sides are sky, such as segmental arc L9, L10 in Fig. 3.
(3) similar arc.Refer to two suspension arcs in marshalling yard, by same Node connectedness, angle between the two and
Away from very little, the cargo that similar arc is mainly used between more cars transfers；Such arc first node connectedness is " 3 ", two tail nodes
Connectedness be " 1 ", left polygon, right polygon are sky, such as segmental arc L7, L8 in Fig. 3.
(4) mesh arc.Refer to the middle segmental arc for forming closed polygon, Receiving yaxd, switchyard, departure yard in marshalling yard
In segmental arc be generally mesh segmental arc；It is made of the same node arc of one or more adjoinings, such as polygon N1, N2, N3 in Fig. 3
Form segmental arc.
(5) parallel arc.In auxiliary facility in marshalling yard, there are many lines all less parallels, and between adjacent segmental arc
Gap be not much different, generally by it is a plurality of suspension segmental arc form, be mainly used for multiple goods stocks park and operation；Such arc
Multiple first node connectednesses are " 1 ", the connectedness of tail node is " 3 ", and left polygon, right polygon are sky, as L1 in Fig. 3~
The structure of L3 compositions.
(6) backbone.Refer to connect the segmental arc between Receiving yaxd, switchyard, departure yard in marshalling yard, generally by non-net
Eye arc middle arc composition, be mainly used for goods stock enter the station with it is outbound；Such arc first node is connective be more than or equal to " 2 ",
The connectedness of tail node is more than or equal to " 2 ", and left polygon, right polygon are sky, such as the segmental arc L5 and L11 in Fig. 3.
Step 4：The three big basic principles that marshaling yard synthesis is chosen are established, grouped data is handled.
When marshalling yard's map datum is reduced the staff to target scale 1: Scale2 from a certain original scale 1: Scale1 synthesis
(Scale2 ＞ Scale1), which circuit when take, which circuit when house, it is natural with original scale and target scale strong correlation,
It is related to the value of the architectural feature in whole marshalling yard of the circuit and the topological property of its own.In other words, Syntheses choice
Length and spacing threshold are certainly in original scale and target scale, when several segmental arcs meet choice condition at the same time, certainly in structure
The contribution of robustness and topological ductility and value.Therefore, comprehensive selection should observe or meet vision can discrimination, structure robustness
With some basic principles such as topological ductility with requiring.
1st, vision can discrimination principle
Marshaling yard is made of the part such as departure track, switchyard, Receiving yaxd, and Syntheses choice area to be treated
Domain, is researched and analysed according to a large amount of marshalling yard's data, and usual advance track, shunting line, reach the effective length of line according to marshalling
The size of vehicle capacity of standing about is distributed in 600-1000 meters, stand in remaining circuit (in addition to backbone) length be less than 600 meters more,
Therefore, the Syntheses choice of marshalling yard is usually directed to 1: 500~1: 25000 scales, can only retain in less than 1: 25000 small scalogram
Classification track body shape, internal wiring is without representing.In existing research, from original scale to target scale length and
It is empirical value away from threshold value, this is unfavorable for automatic business processing.With reference to domestic and international Map Expression specification, in the map of 1: 25000 scale
In, length is not less than 1 millimeter on the constraints graph of wire class length such as tunnel, bright cave, check dam, step, Di Lei circle, station track spacing
No less than 0.3 millimeter, otherwise human eye vision be difficult to recognize, it is complicated even if retain such key element from the angle of measure information
Degree increases severely but information content redundancy.Based on this, deduce 1: Scale (Scale ＞ 25000) length threshold determine model and
Model is determined away from threshold value.
(1) Syntheses choice length threshold determines model
Wherein, it is minimum discernable length on 1: 25000 scalogram, general value 1mm；1: Scale is certain atlas dimension；For
Minimum discernable length on 1: Scale scalogram.
Wherein, threshold value is accepted or rejected for length on 1: Scale1 scalogram,；1: Scale1 accepts or rejects original scale for Map Generalization
Ruler；1: Scale2 accepts or rejects target proportion ruler for Map Generalization；For minimum discernable length on 1: Scale2 scalogram.
(2) Syntheses choice spacing threshold determines model
Wherein, it is minimum discernable spacing on 1: 25000 scalogram, general value 0.3mm；1: Scale is certain atlas dimension；
For minimum discernable spacing on 1: Scale scalogram.
Wherein, threshold value is accepted or rejected for spacing on 1: Scale1 scalogram,；1: Scale1 accepts or rejects original scale for Map Generalization
Ruler；1: Scale2 accepts or rejects target proportion ruler for Map Generalization；For minimum discernable spacing on 1: Scale2 scalogram,.
(3) calculated examples
1: 500 engineer's scale of data original scale ruler in Fig. 2,1: 10000,1: 10000 minimum discernable of target proportion ruler length
Degree=2.5mm, Syntheses choice length threshold=50mm；Width threshold value=0.75mm on figure, Syntheses choice spacing threshold=15mm.
2nd, structure robustness principle
After length and spacing threshold determine, when mesh and similar segmental arc are respectively less than threshold value, how to accept or rejectMaximum likelihood
Keep original structure most important.When artificial implementation is chosen, by qualitative analysis directly perceived, select main, obvious, protrusion
Skeleton circuit is retained, and deletes secondary, scrappy circuit.When computer automation is handled, threshold value and can is relied primarily on
The architectural feature and topological characteristic of quantification.
(1) arc that breaks end is handled
It according to the geometrical length of broken end arc, will be put into less than the segmental arc of length threshold in container, treat that Chu Liwan is all and break
After head arc, the segmental arc in container is deleted from topological structure, and updates and obtains new topological relation.
Such as the geometrical length D18=130m/500 ＜ length threshold 500mm of the broken end arc L18 in Fig. 3, therefore L18 is deleted
Remove, and L19 is then retained, and scrappy road is deleted so as to reach, and keeps overall structure Syntheses choice effect.Fig. 4 breaks for marshalling yard
Head arc chooses and processing schematic diagram, wherein (a) is marshalling yard's railway line schematic diagram before synthesis, (b) is the volume after automatically processing
Group station railway line schematic diagram.
(2) parallel arc processing
The suspension arc in topological segmental arc is found, chooses the key element Arc for the groups of samples Cheng Xin that can express segmental arc essential characteristic,
And the rectangle buffering area of Arc is established using interval threshold as buffering radius, then intersected by Query of Topological with buffering area all
Segmental arc, obtains in buffering area positioned at two the segmental arcs Arc1 and Arc2 that Arc both sides are nearest, and two segmental arcs of Arc1, Arc2 it
Between spacing, if being less than interval threshold, delete current segmental arc, and the topological relation that upgrades in time.
Wherein, N1, N2 are the quantity of the sampled point obtained respectively on two arcs, and Di and Li are respectively adopting on an arc
Distance on sampling point to another arc.
After L2 segmental arcs in Fig. 3 establish buffering area according to spacing threshold, the segmental arc L1 and L3 in buffering area are obtained, is calculated
The distance values S=60m/500 arrived between the two is less than interval threshold 15mm, therefore can delete L2 segmental arcs, retains L1 and L3 so that
Agent structure remains unchanged.Fig. 5 is chosen for the parallel arc of marshalling yard and processing schematic diagram, wherein (a) is marshalling yard's iron before synthesis
Route schematic diagram, (b) are marshalling yard's railway line schematic diagram after automatically processing.
(3) handled with node arc and similar arc
The characteristics of this two classes map feature all has the angle very little between segmental arc, and shape is similar, therefore delete therein
One has no effect on agent structure, need to only retain a segmental arc in synthesis to express characters of ground object.It is calculated two
Spacing between person, if being smaller than spacing threshold, needs to be accepted or rejected according to the geometrical length of two segmental arcs.Retain length
Larger segmental arc, deletes the less segmental arc of length, and the topological relation that upgrades in time.
Same node arc L9 and L10 in Fig. 3, since the geometrical length of L9 is more than the length of L10, retains L9, delete
L10.Similarly, for the similar segmental arc L7 and L8 in Fig. 2, since the geometrical length of L7 is more than the length of L8, retains L7, delete
Except L8.Fig. 6 chooses and handles schematic diagram for marshalling yard with node arc, wherein (a) is marshalling yard's railway line schematic diagram before synthesis,
(b) it is marshalling yard's railway line schematic diagram after automatically processing.Fig. 7 is chosen for marshalling yard's similar arc and processing schematic diagram, wherein (a)
For marshalling yard's railway line schematic diagram before synthesis, (b) is marshalling yard's railway line schematic diagram after automatically processing.
3rd, topological ductility principle
It is comprehensive to choose the topological ductility that ensure marshalling yard's circuit entirety, although some segmental arc length, width are smaller,
For maintaining the circuit that overall connectedness plays an important roll in station to retain, abandon with All other routes Connected degree, associate
Spend small circuit, certainly for position relationship between circuit expression to accomplish it is clear, reasonable., can be right according to this principle
Main line and mesh arc carry out automatic business processing.
(1) processing of main line
" 2 " are more than or equal to by initial and end Connectivity, and left polygon, right polygon are empty topological property, can
It is by non-in topological characteristic since main line has the important function of connection Receiving yaxd, switchyard, departure yard to determine main line
The middle segmental arc of mesh arc is formed, so playing a key effect on topology connectivity is kept, these segmental arcs should give reservation.
(2) mesh arc is handled
Two adjacent meshes generally have the presence of shared arc, and have no effect on remaining node in mesh after deleting shared arc
Between connectedness, therefore the processing for mesh arc mainly delete shared arc therein., will be all according to the topological structure in face
Mesh (NetPolygon) be put into same container according to size and handled successively；For single mesh, if composition
Segmental arc number is equal to 2, then is handled according to the processing mode of same node arc；If forming segmental arc number is more than 2, according to segmental arc
Length scale is handled successively.
Fig. 8 (a), structure mesh segmental arc node topology relevance tree (see Fig. 8 (b)), from first node are formed after Fig. 3 partial enlargements
(such as point J) starts, and judges whether influence mesh topology connectivity after deleting present node association segmental arc successively, if not influencing,
This segmental arc is deleted, and the associated left and right polygon of this segmental arc is deleted from topological structure, by the polygon newly formed according to face
Suitable position in product size insertion container, until end-node terminates (such as point 0).In Fig. 8 (a), node J, K group is deleted successively
Into segmental arc L11, node K, L composition segmental arc L12, until node N, O combination segmental arc L17, find delete two nodes of L, M
Have no effect on the connectedness between other nodes afterwards, therefore segmental arc L14 can be deleted, and by left polygon N2 and right polygon N3 from
Deleted in topology, newly-generated polygon is put into container.
6 map feature segmental arcs of marshalling yard are handled according to the classification of above-mentioned principle, its order is first treated length
Less broken end arc, then handles mesh segmental arc and parallel segmental arc, finally handles above-mentioned two remaining same node arcs and similar
Arc.Fig. 9 automates Syntheses choice results for Fig. 3 from 1: 500 to 1: 10000.
Embodiment
Research case is organized as so that Chengdu eastern station is hybrid, about 30 square kilometres of regional extent, map datum is 2015
Gathered on year aviation image by manual type, its original scale ruler is 1: 500, shares 611 segmental arcs, original graph such as 10 (a)
It is shown.There are this marshalling yard's data key element, the six class map features such as departure yard, switchyard, Receiving yaxd to contain wherein.Experiment
The WJ-III map work stations for relying on China Surveying and Mapping Research Academy to develop, Syntheses choice side of embedded marshalling yard proposed in this paper
Method, by original 1: 500 marshalling yard topographic map Syntheses choice to 1: 10000 engineer's scale.Key parameter is shown in Table 1 before and after the processing, processing
Afterwards shown in result such as Figure 10 (b).
1 automatic Synthesis of table accepts or rejects key parameter
Comprehensive analysis above-mentioned parameter, and topographic map before and after contrast, are not difficult to find out：First, the whole automatic business processing time
0.256s, efficiency are higher；Second, the segmental arc of reservation is 99, is only the 16.2% of former segmental arc, chooses positive effect；3rd,
The agent structure of marshalling yard is retained, and important connectedness is not destroyed between standing, the section segmental arc larger to density into
Go abbreviation, and delete in small, broken bits, fragmentary segmental arc.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (3)
1. the selection of complicated circuit and automatic processing method in a kind of marshaling yard, it is characterised in that comprise the following steps：
A, it is different according to the mutual spread pattern in the difference of car transferring system and departure yard, Receiving yaxd, switchyard, determine marshalling yard's railway
The architectural feature of line；B, according to the exclusive spatial structure characteristic of marshalling yard, structure marshalling yard topological relation；C, in analysis marshalling yard
On the basis of space layout and topological property, classify to marshalling yard's map space feature；D, according to marshalling yard's map space
The classification of feature, establishes the three big basic principles that marshalling yard's synthesis is chosen, and realizes the automated cartographic generalization of marshalling yard.
2. the selection of complicated circuit and automatic processing method, its feature exist in marshaling yard according to claim 1
In different according to the mutual spread pattern in the difference of car transferring system and departure yard, Receiving yaxd, switchyard, marshalling yard is three kinds
Fundamental space structure：Lap siding, cross-arranging type and hybrid.
3. the selection of complicated circuit and automatic processing method, its feature exist in marshaling yard according to claim 1
In further including following steps：A. prepare marshalling yard's railway line data, in this step, prepare to need to carry out the big of integrated treatment
Engineer's scale marshalling yard railway line data, data are all expressed in the form of line feature；B. marshalling yard's topological structure, topology are built
Pretreatment includes the processing of segmental arc self intersection, node process of fitting treatment, removes T1 Repeated Line Tl, remove false node, delete redundant node, delete
Short suspension wire, structure topological Polygon.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629036A (en) * | 2018-05-10 | 2018-10-09 | 中国人民解放军战略支援部队信息工程大学 | A kind of road Generalization Method and device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629036A (en) * | 2018-05-10 | 2018-10-09 | 中国人民解放军战略支援部队信息工程大学 | A kind of road Generalization Method and device |
| CN109532959A (en) * | 2018-10-12 | 2019-03-29 | 中国铁道科学研究院集团有限公司通信信号研究所 | A kind of marshaling yard one's own job machine integrated control system |
| CN110426966A (en) * | 2019-07-31 | 2019-11-08 | 驭势（上海）汽车科技有限公司 | A kind of method, apparatus, storage medium and the electronic equipment of virtual vehicle pathfinding |
| CN110650437A (en) * | 2019-11-27 | 2020-01-03 | 苏宁云计算有限公司 | Fence point deleting method and device on electronic fence and computer equipment |
| CN110650437B (en) * | 2019-11-27 | 2020-02-18 | 苏宁云计算有限公司 | Fence point deleting method and device on electronic fence and computer equipment |
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