CN103942345A - Method for automatically generating IED network graph - Google Patents
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Abstract
The invention relates to a method for generating an IED network graph. The method comprises the following steps that first, a network topology is generated, wherein the network topology of an IED equipment layout object is generated according to sub-network entries corresponding to communication entries in model data; second, automatic layout is carried out, wherein IED equipment which is directly connected with a subnet is allocated first, and then grouping layout is conducted within a subnet range until the overall network layout is completed; third, grid wiring is carried out, wherein a grid reference line is set according to all graphics primitives which are completed in the second step in a layout mode, grid line cross points are traversed in all directions, and finally a connecting line path of the graphics primitives is achieved; fourth, layout examination is carried out, the layout is completed when no intersection exists, and secondary line connection is performed according to the connecting line crossed condition when intersection exists; fifth, an IED network is generated automatically, and the network graph is output. By the adoption of the method, the defect of a single algorithm is overcome, a more efficient algorithm with a reasonable logical layout can be developed according to a network graph model, the method can be adapted to different data model demands, network topology data modeling is facilitated, and the generated IED network graph is clear in line.
Description
Technical field
The present invention relates to a kind of method of automatic generation IED network chart, be applicable to the map generalization of electric substation automation system IED network.
Background technology
Traditional network communication is by substation configuration description language (Substation Configuration Language, SCL) be described, adopt SCL to realize information sharing, for Common Information Model in OO Systems Theory and construction field of power has been established theoretical foundation.IEC 61850 international standard SCL can adapt to diversity and the dirigibility of equipment in electric substation automation system, the data message of specification electric substation automation system, make it with unification, the electric system of standard processing efficiently resource, provide practical basis for network chart generates.
But be described the difficulty that has increased layman's understanding and checked network communication by SCL.Therefore on IEC 61850 international standard bases, set up can operationalization User Interface, realize alternately IED network chart model construction and IED network chart is important step indispensable in electric substation automation system automatically by friendly INTERFACE MODEL, be conducive to improve automation of transformation substations efficiency.
Logic between IED network topology major embodiment network connects, and does not need to consider the too many information such as geographic position that comprise, it is mainly logic placement.Pattern layout's algorithm of existing logic placement mainly contains tree type placement algorithm, hierarchical layout algorithm, orthogonal placement algorithm, ray placement algorithm, dynamic interaction layout and mixed layout algorithm etc.
Tree topology algorithm: using a certain node as root, travel through, spanning tree by the time, carries out layout according to the structure of tree, and all nodes are coupled together.
Orthogonal placement algorithm: for figure layout provides a kind of different style.In layout result, the line between node is all parallel with transverse and longitudinal coordinate axis, makes integral layout effect more regular, readable strong.
Hierarchical layout algorithm: hierarchical layout algorithm is conceived to the level characteristic of figure inside.It carries out layering according to certain standard by figure, first determines the Y-axis coordinate of each node; Next, to reduce the crossing number on limit as the arrangement of the X axle of objective optimization node.
Ray placement algorithm: the method is obtaining after map generalization tree, by its root node centering position, according to the hierarchical structure of tree, successively by its layout on the concentric circles taking root node as the center of circle.The essence of ray placement algorithm is the polar form of tree type layout, but with regard to layout effect, ray layout is more easily accepted.
Although comparative maturity of these placement algorithms, being applied to still can not be completely applicable in the network topology that shows electric power, can not connect the feature of IED network chart is embodied according to logic well in other words.For example: although tree topology algorithm is simple, efficient; But shown network topology and real network textural difference are very large, cannot try to achieve satisfied result.
Summary of the invention
The object of the present invention is to provide under a kind of prerequisite of describing in transformer station's configuration language SCL model data accurately as electric substation automation system presents line clear, point of crossing is few, layout is even and the method for visual automatic generation IED network chart by force.
The technical solution adopted in the present invention:
The present invention includes following step:
Method of the present invention comprises the steps:
Step 1: generating network topology:
Sub-network entry corresponding to entry of communicating by letter in traversal SCL model data;
The sub-network entry that traversal is not traversed, creates sub-network layout object, the all-network access point entry in traversal sub-network entry, if there is IED entry in Network Access Point entry, and generating network access point layout object and IED layout object;
The Network Access Point attribute that sub-network layout object is set is Network Access Point layout object, and the affiliated smart machine attribute that Network Access Point layout object is set is IED layout object;
Travel through all not sub-network entries of traversal, generated the network topology of layout object;
Step 2: autoplacement:
Number according to IED is divided into two rows IED, is distributed in the upper-lower position of subnet, completes the layout of the direct-connected IED layout of antithetical phrase network topology object object;
Using anyon network topology object as unit, in sub-network layout object range, search for, order according to search is carried out layout, Mei Liangge unit is a group, after complete group of cloth, this group is participated in to layout as the unit of layout, until complete the layout to whole network, generate the positional information of all layout objects;
Step 3: grid wiring:
A: gridding reference line,
Taking IED layout object pel length 1/4th as unit, the coordinate system after autoplacement is divided into checkerboard type reference line in length and breadth, the point of crossing of reference line is mesh lines point of crossing in length and breadth;
B: set up autoplacement's object pel,
Set up each self-corresponding pel for sub-network layout object after autoplacement in step 2 and IED layout object, i.e. sub-network layout object pel and IED layout object pel;
According to the positional information after autoplacement in step 2, the upper left corner of sub-network layout object pel and IED layout object pel is snapped to respectively on mesh lines point of crossing;
Set up Network Access Point layout object pel, the end points pel that connects on the primitive edge mesh lines point of crossing of IED layout object pel, end points pel connects on the primitive edge mesh lines point of crossing of sub-network layout object pel;
C: line, determine Network Access Point layout object primitive path and connection end point pel position
Line: the traversal direction of all connection end point pels on layout object pel is set, comprises upper and lower, left and right four direction; All connection end point pels on same layout object pel are made as to one group, select line not and have two groups of connection end point pels on two layout object pels of annexation, carry out line;
Using the connection end point pel on a layout object pel as initial starting point, add starting point sequence, travel through successively the upper of each starting point in starting point sequence, under, left, the mesh lines point of crossing of right four direction, mesh lines point of crossing of every traversal, just this mesh lines point of crossing is joined in starting point sequence, continue to travel through successively next mesh lines point of crossing, until the mesh lines point of crossing traversing overlaps with the connection end point pel on another layout object pel, this coincide point is just end point, the traverse path between initial starting point and end point is just final line path, it is Network Access Point layout object primitive path, and connection end point pel position is exactly starting point and end point initial in path,
Step 4: inspection layout:
If without intersection or overlapping without layout unit, complete layout after line;
If after line exist intersect or layout unit overlapping, carry out line again: to the intersection of all connecting lines after line from more to less successively sequence, and record line intersect add up to S, M is set
0for walking around at most the number of times of mesh lines point of crossing, the fixing weights M of the mesh lines point of crossing on all connecting lines path is set; Take out a connecting line, line again, if run into M in the process of line traversal mesh lines point of crossing time, walking around this point is that this point is not traversed, frequency n walked around in record, if n is greater than M
0shi Suoyou mesh lines point of crossing is no longer bypassed; Form this line, calculate the crossing number S ' of left and right after this line, if S ' be less than S this time line be used, otherwise continue to take off a connecting line line again that has intersection;
Step 5: IED network chart generates automatically, output network figure.
Further, the IED equipment that method of the present invention is connecting one or more subnets in step 2 is as a unit participation layout.
Beneficial effect of the present invention comprises:
(1) the present invention, taking IEC 61850 model datas (being SCL data) as basis, builds IED data model in conjunction with the actual needs in automation of transformation substations field, automatically generates and is adapted to electric substation automation system IED network chart.
(2) the present invention facilitates network topology data modeling, and the data of modeling process and pel interactive operation are simple, can set up fast and accurately the data relationship that different models need.
(3) the present invention adapts to different pieces of information model requirements, because extensive abstract this IED of the making network map generalization method that data model has been adopted to graph theory pel can be processed different pieces of information model.
(4) the IED network chart line clear that the present invention generates, point of crossing is few, and layout is even, respond well.Different layouts and cabling optimized algorithm are adopted for different model topology.
(5) the present invention is according to network chart model, and exploitation realizes the algorithm of more efficient and rational logic placement.The present invention integrates according to model feature and integrated logic placement algorithm, is the general automatic mapping implementation based on standard IEC 61850, obtains one and can avoid original paper overlapping, and line intersects and the both artistic and practical network chart realization method of layout.The present invention realizes taking the logic connecting relation of existing equipment as basis, does not need in other manually-operated situation, and shape automatically draws a network.
(6) the present invention has avoided the defect of single algorithm, by reading and analyzing network model, to network carry out trunk processing, branch road is peeled off, pay the utmost attention to the first placement algorithm of local rear entirety, and adopt arrangement nodes effect weights proportion to calculate, analyze initial layout's effect, if do not reach layout effect, connect the too many layout unit of intersection overlapping, carry out quadratic assignment's figure and can carry out again quadratic assignment, the final network chart automatic mapping that reaches idealized effect of realizing.
Brief description of the drawings
Fig. 1 is the process flow diagram of the inventive method;
Fig. 2 is the network topology of the IED device layout object of the embodiment of the present invention 1 step 1 generation;
Fig. 3 is the final network chart automatically generating of the embodiment of the present invention 1;
Fig. 4 is the final network chart automatically generating of the embodiment of the present invention 2.
Embodiment
Specific embodiments of the invention are the further descriptions to the object of the invention, technical scheme and beneficial effect; so specific embodiments of the invention are not limited to the present invention; all within the scope of claim of the present invention, any amendment of making, be equal to replacement etc. and all should be included in protection scope of the present invention.
Operation steps of the present invention may be summarized to be:
Step 1: generating network topology: according to sub-network entry corresponding to the entry of communicating by letter in model data, generate the network topology of IED device layout object;
Step 2: autoplacement: first the direct-connected IED equipment of subnet is carried out to layout; Then the layout of dividing into groups in subnet scoping, until complete the layout to whole network.
Step 3: grid wiring: all pels that complete for layout in step 2, set grid reference line, according to upper and lower, left and right direction traversal mesh lines point of crossing, the line path that finally completes pel;
Step 4: inspection layout, complete layout without intersecting, there is intersection to carry out secondary line according to line intersection situation;
Step 5: IED automatic mesh generation, output network figure.
Embodiment 1
The network topology of carrying out only comprising the model of a communication subnet.
As shown in Figure 1, the method that the present invention generates IED network chart automatically comprises the steps:
Step 1: generating network topology:
Traversal sub-network entry corresponding to entry of communicating by letter in model data;
All-ones subnet network entry is all traversed, and builds IED device layout object, and automatically generates the network topology of IED device layout object as shown in Figure 2.
Step 2: autoplacement:
Number according to IED is divided into two rows IED, is distributed in the upper-lower position of subnet, completes the layout to the direct-connected IED equipment of subnet;
Using any subnet as unit, in subnet scoping, search for, carry out layout according to the order of search, Mei Liangge unit is a group, after complete group of cloth, this group is participated in to layout as the unit of layout, until complete the layout to whole network.
Step 3: grid wiring:
A: gridding reference line,
Taking IED layout object pel length 1/4th as unit, the coordinate system after autoplacement is divided into checkerboard type reference line in length and breadth, the point of crossing of reference line is mesh lines cited below point of crossing in length and breadth;
B: set up autoplacement's object pel
Set up each self-corresponding pel for sub-network layout object after autoplacement in step 2 and IED layout object, i.e. sub-network layout object pel and IED layout object pel.According to the positional information after autoplacement in step 2, the upper left corner of sub-network layout object pel and IED layout object pel is snapped to respectively on mesh lines point of crossing.
Set up Network Access Point layout object pel, the end points pel that connects on the primitive edge mesh lines point of crossing of IED layout object pel, end points pel connects on the primitive edge mesh lines point of crossing of sub-network layout object pel.
C: line, determine Network Access Point layout object primitive path and connection end point pel position
Line: the traversal direction that all connection end point pels on layout object pel are set, comprise upper and lower, left and right four direction, all connection end point pels on same layout object pel are made as to one group, select line not and have two groups of connection end point pels on two layout object pels of annexation, carry out line;
Using the connection end point pel on a layout object pel as initial starting point, add starting point sequence, travel through successively the upper of each starting point in starting point sequence, under, left, the mesh lines point of crossing of right four direction, mesh lines point of crossing of every traversal, just this mesh lines point of crossing is joined in starting point sequence, continue to travel through successively next mesh lines point of crossing, until the mesh lines point of crossing traversing overlaps with the connection end point pel on another layout object pel, this coincide point is just end point, the traverse path between initial starting point and end point is just final line path, it is Network Access Point layout object primitive path, and connection end point pel position is exactly starting point and end point initial in path.
Step 4: inspection layout:
After line, without intersection or overlapping without layout unit, complete layout.
Step 5: IED network chart generates automatically, output network chart as shown in Figure 3.
Embodiment 2
The network topology that the model that comprises three communication subnets is carried out.
As shown in Figure 1, the method that the present invention generates IED network chart automatically comprises the steps:
Step 1: generating network topology:
Traversal sub-network entry corresponding to entry of communicating by letter in model data;
Owing to there being the sub-network entry not being traversed, according to sub-network entry WO1 (8-MMS), WO12(8-MMS) and WO13(8-MMS) search net with attributes access point, generate IED device layout object, and automatically generate the network topology of IED device layout object.
Step 2: autoplacement:
Number according to IED is divided into two rows IED, is distributed in the upper-lower position of subnet, completes the layout to the direct-connected IED equipment of subnet.
The IED equipment that is connecting one or more subnets participates in layout as a unit.
Using any subnet as unit, in subnet scoping, search for, carry out layout according to the order of search, Mei Liangge unit is a group, after complete group of cloth, this group is participated in to layout as the unit of layout, until complete the layout to whole network.
Step 3: grid wiring:
A: gridding reference line,
Taking IED layout object pel length 1/4th as unit, the coordinate system after autoplacement is divided into checkerboard type reference line in length and breadth, the point of crossing of reference line is mesh lines cited below point of crossing in length and breadth;
B: set up autoplacement's object pel
Set up each self-corresponding pel for sub-network layout object after autoplacement in step 2 and IED layout object, i.e. sub-network layout object pel and IED layout object pel.According to the positional information after autoplacement in step 2, the upper left corner of sub-network layout object pel and IED layout object pel is snapped to respectively on mesh lines point of crossing.
Set up Network Access Point layout object pel, the end points pel that connects on the primitive edge mesh lines point of crossing of IED layout object pel, end points pel connects on the primitive edge mesh lines point of crossing of sub-network layout object pel.
C: line, determine Network Access Point layout object primitive path and connection end point pel position
Line: the traversal direction that all connection end point pels on layout object pel are set, comprise upper and lower, left and right four direction, all connection end point pels on same layout object pel are made as to one group, select line not and have two groups of connection end point pels on two layout object pels of annexation, carry out line;
Using the connection end point pel on a layout object pel as initial starting point, add starting point sequence, travel through successively the upper of each starting point in starting point sequence, under, left, the mesh lines point of crossing of right four direction, mesh lines point of crossing of every traversal, just this mesh lines point of crossing is joined in starting point sequence, continue to travel through successively next mesh lines point of crossing, until the mesh lines point of crossing traversing overlaps with the connection end point pel on another layout object pel, this coincide point is just end point, the traverse path between initial starting point and end point is just final line path, it is Network Access Point layout object primitive path, and connection end point pel position is exactly starting point and end point initial in path.
Step 4: inspection layout:
Due to after line exist intersect or layout unit overlapping, carry out line again: to the intersection of all connecting lines after line from more to less successively sequence, and record line intersect add up to S, M is set
0for walking around at most the number of times of mesh lines point of crossing, the fixing weights M of the mesh lines point of crossing on all connecting lines path is set; Take out a connecting line, line again, if run into M in the process of line traversal mesh lines point of crossing time, walking around this point is that this point is not traversed, frequency n walked around in record, if n is greater than M
0shi Suoyou mesh lines point of crossing is no longer bypassed; Form this line, calculate the crossing number S ' of left and right after this line, if S ' be less than S this time line be used, otherwise continue to take off a connecting line line again that has intersection;
Step 5: IED network chart generates automatically, output network chart as shown in Figure 4.
Claims (2)
1. a method that automatically generates IED network chart, is characterized in that it comprises the steps:
Step 1: generating network topology:
Sub-network entry corresponding to entry of communicating by letter in traversal SCL model data;
The sub-network entry that traversal is not traversed, creates sub-network layout object, the all-network access point entry in traversal sub-network entry, if there is IED entry in Network Access Point entry, and generating network access point layout object and IED layout object;
The Network Access Point attribute that sub-network layout object is set is Network Access Point layout object, and the affiliated smart machine attribute that Network Access Point layout object is set is IED layout object;
Travel through all not sub-network entries of traversal, generated the network topology of layout object;
Step 2: autoplacement:
Number according to IED is divided into two rows IED, is distributed in the upper-lower position of subnet, completes the layout of the direct-connected IED layout of antithetical phrase network topology object object;
Using anyon network topology object as unit, in sub-network layout object range, search for, order according to search is carried out layout, Mei Liangge unit is a group, after complete group of cloth, this group is participated in to layout as the unit of layout, until complete the layout to whole network, generate the positional information of all layout objects;
Step 3: grid wiring:
A: gridding reference line,
Taking IED layout object pel length 1/4th as unit, the coordinate system after autoplacement is divided into checkerboard type reference line in length and breadth, the point of crossing of reference line is mesh lines point of crossing in length and breadth;
B: set up autoplacement's object pel,
Set up each self-corresponding pel for sub-network layout object after autoplacement in step 2 and IED layout object, i.e. sub-network layout object pel and IED layout object pel;
According to the positional information after autoplacement in step 2, the upper left corner of sub-network layout object pel and IED layout object pel is snapped to respectively on mesh lines point of crossing;
Set up Network Access Point layout object pel, the end points pel that connects on the primitive edge mesh lines point of crossing of IED layout object pel, end points pel connects on the primitive edge mesh lines point of crossing of sub-network layout object pel;
C: line, determine Network Access Point layout object primitive path and connection end point pel position
Line: the traversal direction of all connection end point pels on layout object pel is set, comprises upper and lower, left and right four direction; All connection end point pels on same layout object pel are made as to one group, select line not and have two groups of connection end point pels on two layout object pels of annexation, carry out line;
Using the connection end point pel on a layout object pel as initial starting point, add starting point sequence, travel through successively the upper of each starting point in starting point sequence, under, left, the mesh lines point of crossing of right four direction, mesh lines point of crossing of every traversal, just this mesh lines point of crossing is joined in starting point sequence, continue to travel through successively next mesh lines point of crossing, until the mesh lines point of crossing traversing overlaps with the connection end point pel on another layout object pel, this coincide point is just end point, the traverse path between initial starting point and end point is just final line path, it is Network Access Point layout object primitive path, and connection end point pel position is exactly starting point and end point initial in path,
Step 4: inspection layout:
If without intersection or overlapping without layout unit, complete layout after line;
If after line exist intersect or layout unit overlapping, carry out line again: to the intersection of all connecting lines after line from more to less successively sequence, and record line intersect add up to S, M is set
0for walking around at most the number of times of mesh lines point of crossing, the fixing weights M of the mesh lines point of crossing on all connecting lines path is set; Take out a connecting line, line again, if run into M in the process of line traversal mesh lines point of crossing time, walking around this point is that this point is not traversed, frequency n walked around in record, if n is greater than M
0shi Suoyou mesh lines point of crossing is no longer bypassed; Form this line, calculate the crossing number S ' of left and right after this line, if S ' be less than S this time line be used, otherwise continue to take off a connecting line line again that has intersection;
Step 5: IED network chart generates automatically, output network figure.
2. the method for automatic generation IED network chart according to claim 1, is characterized in that the IED equipment that is connecting one or more subnets in step 2 participates in layout as a unit.
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