CN107992704A - A kind of switchgear secondary connection method extended out based on contour line - Google Patents

A kind of switchgear secondary connection method extended out based on contour line Download PDF

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CN107992704A
CN107992704A CN201711405899.5A CN201711405899A CN107992704A CN 107992704 A CN107992704 A CN 107992704A CN 201711405899 A CN201711405899 A CN 201711405899A CN 107992704 A CN107992704 A CN 107992704A
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secondary connection
main path
component
path
value
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CN107992704B (en
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雍俊海
张慧
吴子健
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Tsinghua University
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Abstract

The invention discloses a kind of switchgear secondary connection method extended out based on contour line, belong to field of computer aided design.The present invention comprises the following steps：(1) cam profile is generated according to component and cabinet body structure, and these contour lines is extended, interception, generate secondary connection main path；(2) based on the secondary connection main path, construction connects the local cabling network of the secondary connection main path, so as to form the complete wiring grid of secondary connection；(3) according to secondary connection heuristic evaluation rule, most short secondary connection path is searched in the complete wiring grid generated.The present invention is based on the component of secondary connection, the available path of Fast Construction wiring is extended out by profile, while considers cabinet body structure, on the premise of most short circuit thread path is asked for, reduce to the greatest extent wiring bending and circuit it is crowded, so as to ensure the service life of switchgear.

Description

A kind of switchgear secondary connection method extended out based on contour line
Technical field
The invention belongs to field of computer aided design, and in particular to a kind of switchgear for being extended out based on contour line is secondary to be connect Line method.
Background technology
Secondary connection is an important job in switchgear manufacture.Common secondary component has control to open in switchgear Pass, fuse and relay etc..Secondary connection can be briefly described to connect each component using cable.Specifically, it is secondary The action of wiring mainly has：First, according to the component and wiring information provided in electrical schematic diagram, first device is being installed The amount of progress line on the cabinet in kind of part.Secondly, the manufacture for counting and inputting electric wire automatic processing device into row conductor is cut.With Afterwards, the conducting wire manufactured is completed into wiring work on cabinet in kind.Finally, checked by inspection repeatedly, to ensure wiring As a result the requirement of electrical schematic diagram and wiring technique is met.From above step as can be seen that after electrical design is completed, also to wait Housing manufacture assembling, component purchase are installed all in place, the process that could carry out secondary connection.Such Chain step, restricts The raising of production efficiency and reliability.
With the maturation of Computer-aided Design Technology, there is provided the automatic mode of switch-oriented cabinet secondary connection becomes can Energy.Using aided design techniques, on digitized cabinet model, secondary connection is simulated as a result, and then counting in product The information data of each wire, is processed manufacture.So that secondary connection is changed into only needing directly according to virtual wiring result to be existed The work of distribution debugging is completed in material object, with this degree of parallelism that greatly lifting switch cabinet is designed, produced, effectively lifting production Efficiency.
Chinese patent 201310538018.2 discloses a kind of mathematical model structure being used in three-dimensional electric wiring software Method, it is characterised in that comprise the following steps：1. step, inputs the maximum appearance and size of the product model to be established, generation production Product maximum appearance and size frame diagram；2., according to the actual state of product form, input is provided with electrical equipment or is equipped with step Each panel length and width dimensions of wire fixing device, determine three dimensional space coordinate of each panel in product space；Step 3., successively Each panel type parameter is selected, each space plane, each space are automatically generated on product maximum appearance and size frame diagram The simplification data model related with electric elements, conducting wire installation, becomes structural frame model in plane composition product；Step 4., The electrical equipment for needing to install in the product is modeled, modeling parameters include shape, installation dimension, the sky of electrical wiring point Between position；5. step, is required according to product design, electric elements model is loaded structural frame model, forms assembling model；Step Suddenly 6., by wiring information parameter typing to the assembling model in electrical schematic diagram, the three dimensional wiring of electric product is completed；Step 7. export electric wiring result.But the three dimensional wiring method can only to switchgear overall space as can wiring space examine Consider, it is impossible to make full use of secondary connection correlation components' placement to carry out intelligent wiring, while its wiring rule with cabinet body structure Also only consider that wiring is most short, do not account for the bending times and the dense degree of wiring of wiring, it is impossible to which effectively processing is actual secondary Wiring issue.
The content of the invention
It is an object of the present invention to provide a kind of switchgear secondary connection computer-implemented method, this method makes full use of out Related components' placement and switch cabinet body structure in cabinet are closed, and considers the bending number of wiring and the dense degree of wiring.
Specifically, the technical solution adopted by the present invention comprises the following steps：
1) cam profile is generated according to component and cabinet body structure, and these contour lines is extended, interception, generation is secondary to be connect Line main path, the secondary connection main path include component secondary connection main path and cabinet secondary connection main path, including Following steps：
Generation component secondary connection main path 1-1) is extended out using component contour line, including：
1-1-1) calculate edge main path；
Initial internal main path 1-1-2) is iterated to calculate, including：
1-1-2-1) each edge of each component bounding box is extended out and checks following two conditions：
Condition A-1, if new initial internal main path can be generated；
Condition A-2, if exist and extend out the possibility mutually crossed over next time；
It is no that inspection result is any, performs this step again；Inspection result is to be, performs next step；
This side of the component bounding box 1-1-2-2) is marked no longer to be extended out；
1-1-2-3) check following three conditions：
Condition B-1, if close or across edge main path；
Condition B-2, if produce interference with edge main path；
Condition B-3, if overlapped with existing initial internal main path；
Any inspection result is yes, execution step 1-1-3)；Inspection result is no, performs step 1-1-2-1)；
1-1-3) extend and intercept initial internal main path；
1-2) it is using cabinet body structure generation cabinet secondary connection main path, step：
1-2-1) check for horizontal baffle；Inspection result is yes, then performs step 1-2-2)；Inspection result is It is no, then perform step 1-2-4)；
1-2-2) edge main path is calculated to project on side cover plate；
It is Coordinate generation main path 1-2-3) to take maximum x value and maximum y values and maximum x value and minimum y values in all projections, The maximum x value of projection represents main path on side cover plate near the projection value that switch cabinet is external, maximum y values and minimum y values Main path highest, minimum projection value on side cover plate are represented respectively；
1-2-4) check for vertical partition plate；Inspection result is yes, then performs step 1-2-5)；Inspection result is It is no, then perform step 2)；
1-2-5) calculate the projection of door-plate and vertical clapboard top edge path on side cover plate；
It is Coordinate generation main path 1-2-6) to take maximum x value and maximum y values and maximum x value and minimum y values in all projections, The maximum x value of projection represents main path on side cover plate near the projection value that switch cabinet is external, maximum y values and minimum y values Main path highest, minimum projection value on side cover plate are represented respectively；
2) based on the secondary connection main path, by calculating Smallest connection distance between secondary connection main path and will It is as local cabling network, and construction connects the local cabling network of the secondary connection main path, so as to form secondary connection Complete wiring grid, including：
2-1) calculate most short connection of the component line endpoint to corresponding component secondary connection main path；
It is secondary to cabinet 2-2) to calculate every component secondary connection main path in component secondary connection main path set The most short connection of wiring main path；It is described most short to be connected as by component secondary connection main path set middle conductor and rectangular end The most short connection of point；
2-3) calculate the most short connection between every cabinet secondary connection main path；
3) according to secondary connection heuristic evaluation rule, most short secondary connection is searched in the complete wiring grid generated Path；The secondary connection heuristic evaluation rule is A* heuristic rules, wherein, distance function is superimposed letter for Euclidean distance Number, is mahalanobis distance function apart from evaluation function, and heuristic rule is calculated with bending number and overlapping trees number.
Furthermore, the expression formula F (v) of the A* heuristic rules is：
F (v)=G (v)+H (v)
Wherein, G (v) be point v to the evaluation function apart from starting point, it is specific as follows：
Wherein, li=Euclidean distance (vi,vi-1), point v is represented to the wire length apart from starting point, viProsthomere is worked as in representative Point, vi-1Represent the upper node being connected in searching route with present node；
H (v) is heuristic rules of the point v to terminal, specific as follows：
H (v)=lvt+C1bv+C2sv+C3shv
Wherein, lvt=mahalanobis distance (v, target), represents point v and estimates wire length to terminal target；bvIt is Reduce the heuristic rule of bending to the greatest extent, its value has been equal to the quantity of the secondary connection path bending of point-to-point v, C1It is bvPower Value；svIt is overlapping trees heuristic rule, it has calculated point-to-point v and has had determined that the accumulated value of secondary connection path number subtracts The maximum threshold value that can share wiring quantity is gone, value is 0, C if less than 02It is svWeights, shvIt is same component share wires Heuristic rule, value is 0 if the node has the wiring path from identical component, and otherwise value is 1, C3It is shvPower Value, it is desirable to C1+C2+C3=1.
Furthermore, the C1It is worth for 0.4, C2It is worth for 0.4, C3It is worth for 0.2.
Furthermore, it is further comprising the steps of after step 3)：
According to secondary line method for searching path, all connection procedures in switchgear are arranged from high to low with component value Sequence scans for；Search result is formed with connecting segment number, line style, wiring type and four part of line length, and the line length is by secondary Line route searching method determines that connection segment number, line style and wiring type are determined by specifically connecting component type.
Beneficial effects of the present invention are as follows：The switchgear secondary connection auxiliary design method that the contour line of the present invention extends out, Using Computer-aided Design Technology, on digitized cabinet model, based on the component of secondary connection, pass through profile Extend out the available path of Fast Construction wiring, while consider cabinet body structure, directly with low-tension switch cabinet secondary connection mission requirements Match.The search function of construction takes into full account secondary connection cost, the index of correlation of quality, can effectively optimize secondary connection knot Fruit；Simulate secondary connection as a result, and then count the information data of each wire in product, be processed manufacture.So that two Secondary wiring is changed into only needing the work for directly completing distribution debugging in material object according to virtual wiring result, is greatly lifted with this Switchgear designs, the degree of parallelism of production, effectively improving production efficiency.
Brief description of the drawings
Fig. 1 is overview flow chart in the embodiment of the present invention 1.
Fig. 2 is the component secondary connection main path schematic diagram of the embodiment of the present invention 1.
Fig. 3 be the embodiment of the present invention 1 based on profile extend out method generation component secondary connection main path flow chart.
Fig. 4 is iterative calculation initial internal main path flow chart in Fig. 3.
Fig. 5 is the switch cabinet body structure diagram of the embodiment of the present invention 1.
Fig. 6 is the embodiment of the present invention 1 based on cabinet body structure generation cabinet secondary connection main path flow chart.
Label in figure：1 --- fixed plate, 2 --- all component bounding boxs, 3 --- component interferes bounding box, 4 --- component bounding box, 5 --- internal main path, 6 --- edge main path, 7 --- side cover plate, 8 --- horizontal baffle, 9 --- fixed panel, 10 --- side cover framework, 11 --- main path projects.
Embodiment
With reference to embodiment and the present invention is described in further detail referring to the drawings.
Embodiment 1：
One embodiment of the present of invention, is a kind of switchgear secondary connection method extended out based on contour line.Reference Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the switchgear secondary connection method, including following three steps：
1) cam profile is generated according to component and cabinet body structure, and these contour lines is extended, interception, generation is secondary to be connect The main path of line；
The purpose of switchgear secondary connection is according to known component connection relation, for every a pair of of component connection relation Generate a corresponding wiring path.Its wiring path is mainly determined according to component locations and cabinet body structure, therefore, by first device The path definition of part and cabinet body structure generation be secondary connection main path, can be extended out respectively by contour line in the method and Cabinet body structure generates secondary connection main path, specific as follows：
A. generation component secondary connection main path is extended out according to component contour line
It is specific to calculate thinking to be extended out successively to component profile in fixed plate with reference to Fig. 2, Fig. 3 and Fig. 4, meet Terminated after physical condition, to generate 5 and 6 main path represented in figure.Step is：
1-1-1) according to the fixation face plate profiles (shown in Fig. 2 1) of component and the minimum area-encasing rectangle of all components (in Fig. 2 shown in 3) cuts calculate initial edge main path successively；
1-1-2) for the bounding box iterative calculation initial internal main path of each component, its process by taking turns iteration group more Into often taking turns iteration includes：
1-1-2-1) each edge of each component bounding box is extended out, and checks following two stop conditions：
Condition A-1, if new initial internal main path can be generated；
Condition A-2, if exist and extend out the possibility mutually crossed over next time；
It is no that inspection result is any, performs this step 1-1-2-1 again)；Inspection result is to be, performs next step 1- 1-2-2)；
This side of the component bounding box 1-1-2-2) is marked no longer to be extended out；
1-1-2-3) during every wheel extends out, check whether epicycle iteration stops, stop condition is as follows：
Condition B-1, if close or across edge main path；
Condition B-2, if produce interference with edge main path；
Condition B-3, if overlapped with existing initial internal main path；
Any inspection result is yes, execution step 1-1-3)；Inspection result is no, performs step 1-1-2-1)；
1-1-3) profile to generation is extended, intercepts acquisition initial internal main path.
B. cabinet secondary connection main path is generated according to cabinet body structure
It is switch cabinet body Model, each cube is component bounding box with reference to shown in (a) in Fig. 5；(b) is pair in Fig. 5 In Fig. 5 in (a) cabinet model mark, different filling lines correspond to different switchgear templates；(c) is according to cabinet knot in Fig. 5 The coordinates measurement of structure, 11 be projection of the main path on side cover plate in figure.The projection of two main paths is shared in Fig. 5, for this The projection of two main paths, it is Coordinate generation master to take maximum x value and maximum y values and maximum x value and minimum y values in two projections Path, wherein the maximum x value projected represents main path on side cover plate near the projection value that switch cabinet is external, maximum y values Main path highest, minimum projection value on side cover plate are represented respectively with minimum y values.Thus, a new main path can be constructed, The x values of its two-end-point are the maximum x value of two main path projections, and the y values of two-end-point are respectively the maximum y of two main path projections Value and minimum y values.
With reference to Fig. 6, according to cabinet body structure, edge main path is calculated if there are horizontal baffle and is projected on side cover plate, and Projection on each side cover plate is denoted as a main path.If there is no horizontal baffle, then calculated according to vertical clapboard related Project and be denoted as main path, including：
1-2-5) calculate the projection of door-plate and vertical clapboard top edge path on side cover plate；
It is Coordinate generation main path 1-2-6) to take maximum x value and maximum y values and maximum x value and minimum y values in all projections, The maximum x value of projection represents main path on side cover plate near the projection value that switch cabinet is external, maximum y values and minimum y values Main path highest, minimum projection value on side cover plate are represented respectively.
Since the main purpose of the main path calculated according to cabinet body structure is for connecting the first device calculated according to step a Part profile main path, therefore, according to secondary connection rule, in the case of there are horizontal baffle, it is only necessary to which consideration is prolonged side cover plate and walked Line；In the case of horizontal baffle, vertical clapboard cabling is prolonged in consideration；If horizontal baffle and vertical clapboard are all not present, The component profile main path for illustrating that step a can be calculated is directly connected to.
2) secondary connection main path generation secondary connection grid is connected
By step 1) generation secondary connection main path for line segment, rectangle set, this step 2) in by these line segments, Rectangle, which is connected to each other, generates secondary connection grid.Concretely comprise the following steps, first, calculate component line endpoint to corresponding component two The most short connection of secondary wiring main path；Then, every component secondary connection in component secondary connection main path set is calculated Most short connection of the main path to cabinet secondary connection main path；Finally, it is most short between every cabinet secondary connection main path of calculating Connection.Due to orthogonal between secondary connection main path, then there are more solutions in most short connection, therefore secondary connection main road is passed through in selection Gather the most short connection of middle conductor and rectangle endpoint in footpath.
3) secondary connection route searching
After generating secondary connection grid, calculate secondary connection path and be converted into the search shortest path problem in grid, because This, selects A* algorithms to scan for, as follows using the expression formula F (v) of heuristic rule：
F (v)=G (v)+H (v)
Wherein, G (v) be point v to the evaluation function apart from starting point, H (v) be heuristic rules of the point v to terminal, specifically such as Under：
Wherein, li=Euclidean distance (vi,vi-1), point v is represented to the wire length apart from starting point, viProsthomere is worked as in representative Point, vi-1Represent the upper node being connected in searching route with present node.
H (v)=lvt+C1bv+C2sv+C3shv
Wherein, lvt=mahalanobis distance (v, target), represents point v and estimates wire length to terminal target；bvIt is Reduce the heuristic rule of bending to the greatest extent, its value has been equal to the quantity of the secondary connection path bending of point-to-point v, C1It is its power Value；svIt is overlapping trees heuristic rule, it has calculated point-to-point v and has had determined that the accumulated value of secondary connection path number subtracts The maximum threshold value that can share wiring quantity is gone, value is 0, C if less than 02It is its weights.shvIt is that same component share wires open Hairdo rule, value is 0 if the node has the wiring path from identical component, and otherwise value is 1, it is not equivalent to Path candidate comprising existing component wiring path has been superimposed distance punishment, to ensure that it is more that the wiring of same component has Co-route, facilitate secondary connection personnel carry out wiring, C3It is shvWeights.C1、C2、C3Value is according to the class of specific product Type is set, it is desirable to C1+C2+C3=1, in the present embodiment, C1It is worth for 0.4, C2It is worth for 0.4, C3It is worth for 0.2.This heuristic rule Sets target be to ask for most short circuit thread path on the premise of, reduce to the greatest extent wiring bending and circuit it is crowded, protected with this Demonstrate,prove the service life of switchgear.The cable from identical component is set to draw close as far as possible at the same time, personnel are connect beneficial to secondary connection Line.
4) secondary connection statistical information is generated
According to secondary line method for searching path, all connection procedures in switchgear are scanned for, are worth with component Search is completed in sequence from high to low.Search result is to connect segment number, and line style, wiring type, four part of line length forms.Line length by Secondary line method for searching path determines that other three parts are determined by specifically connecting component type.Can by above- mentioned information into Row collects and is preserved, and such as saves as text.Information after so preserving can import automation secondary line production equipment Produced.
Although the present invention is disclosed as above with preferred embodiment, embodiment is not for limiting the present invention's.Not In the spirit and scope for departing from the present invention, any equivalence changes done or retouching, also belong to the protection domain of the present invention.Cause This protection scope of the present invention should be using the content that claims hereof is defined as standard.

Claims (4)

  1. A kind of 1. switchgear secondary connection method extended out based on contour line, it is characterised in that comprise the following steps：
    1) cam profile is generated according to component and cabinet body structure, and these contour lines is extended, interception, generate secondary connection master Path, the secondary connection main path include component secondary connection main path and cabinet secondary connection main path, including following Step：
    Generation component secondary connection main path 1-1) is extended out using component contour line, including：
    1-1-1) calculate edge main path；
    Initial internal main path 1-1-2) is iterated to calculate, including：
    1-1-2-1) each edge of each component bounding box is extended out and checks following two conditions：
    Condition A-1, if new initial internal main path can be generated；
    Condition A-2, if exist and extend out the possibility mutually crossed over next time；
    It is no that inspection result is any, performs this step again；Inspection result is to be, performs next step；
    This side of the component bounding box 1-1-2-2) is marked no longer to be extended out；
    1-1-2-3) check following three conditions：
    Condition B-1, if close or across edge main path；
    Condition B-2, if produce interference with edge main path；
    Condition B-3, if overlapped with existing initial internal main path；
    Any inspection result is yes, execution step 1-1-3)；Inspection result is no, performs step 1-1-2-1)；
    1-1-3) extend and intercept initial internal main path；
    1-2) it is using cabinet body structure generation cabinet secondary connection main path, step：
    1-2-1) check for horizontal baffle；Inspection result is yes, then performs step 1-2-2)；Inspection result be it is no, then Perform step 1-2-4)；
    1-2-2) edge main path is calculated to project on side cover plate；
    It is Coordinate generation main path 1-2-3) to take maximum x value and maximum y values and maximum x value and minimum y values in all projections, projection Maximum x value represent main path on side cover plate near the projection value that switch cabinet is external, maximum y values and minimum y values difference Represent main path highest, minimum projection value on side cover plate；
    1-2-4) check for vertical partition plate；Inspection result is yes, then performs step 1-2-5)；Inspection result be it is no, then Perform step 2)；
    1-2-5) calculate the projection of door-plate and vertical clapboard top edge path on side cover plate；
    It is Coordinate generation main path 1-2-6) to take maximum x value and maximum y values and maximum x value and minimum y values in all projections, projection Maximum x value represent main path on side cover plate near the projection value that switch cabinet is external, maximum y values and minimum y values difference Represent main path highest, minimum projection value on side cover plate；
    2) based on the secondary connection main path, by calculating Smallest connection distance between secondary connection main path and being made For local cabling network, construction connects the local cabling network of the secondary connection main path, so as to form the complete of secondary connection Whole wiring grid, including：
    2-1) calculate most short connection of the component line endpoint to corresponding component secondary connection main path；
    Every component secondary connection main path 2-2) is calculated in component secondary connection main path set to cabinet secondary connection The most short connection of main path；It is described most short to be connected as by component secondary connection main path set middle conductor and rectangle endpoint Most short connection；
    2-3) calculate the most short connection between every cabinet secondary connection main path；
    3) according to secondary connection heuristic evaluation rule, most short secondary connection road is searched in the complete wiring grid generated Footpath；The secondary connection heuristic evaluation rule is A* heuristic rules, wherein, distance function is Euclidean distance superpositing function, It is mahalanobis distance function apart from evaluation function, heuristic rule is calculated with bending number and overlapping trees number.
  2. 2. the switchgear secondary connection computer-implemented method according to claim 1 extended out based on contour line, its It is characterized in that, the expression formula F (v) of the A* heuristic rules is：
    F (v)=G (v)+H (v)
    Wherein, G (v) be point v to the evaluation function apart from starting point, it is specific as follows：
    <mrow> <mi>G</mi> <mrow> <mo>(</mo> <mi>v</mi> <mo>)</mo> </mrow> <mo>=</mo> <msubsup> <mi>&amp;Sigma;</mi> <mrow> <mi>i</mi> <mo>=</mo> <mn>0</mn> </mrow> <mi>v</mi> </msubsup> <msub> <mi>l</mi> <mi>i</mi> </msub> </mrow>
    Wherein, li=Euclidean distance (vi,vi-1), point v is represented to the wire length apart from starting point, viRepresent present node, vi-1 Represent the upper node being connected in searching route with present node；
    H (v) is heuristic rules of the point v to terminal, specific as follows：
    H (v)=lvt+C1bv+C2sv+C3shv
    Wherein, lvt=mahalanobis distance (v, target), represents point v and estimates wire length to terminal target；bvIt is to try to The heuristic rule of bending is reduced, its value has been equal to the quantity of the secondary connection path bending of point-to-point v, C1It is bvWeights；sv It is overlapping trees heuristic rule, it has calculated point-to-point v and has had determined that the accumulated value of secondary connection path number subtracts most The threshold value of wiring quantity can be shared greatly, and value is 0, C if less than 02It is svWeights, shvIt is that same component share wires inspire Formula rule, value is 0 if the node has the wiring path from identical component, and otherwise value is 1, C3It is shvWeights, It is required that C1+C2+C3=1.
  3. 3. the switchgear secondary connection computer-implemented method according to claim 2 extended out based on contour line, its It is characterized in that, the C1It is worth for 0.4, C2It is worth for 0.4, C3It is worth for 0.2.
  4. 4. according to any switchgear secondary connection CAD extended out based on contour line of claims 1 to 3 Method, it is characterised in that further comprising the steps of after step 3)：
    According to secondary line method for searching path, to all connection procedures in switchgear with component value sort from high to low into Row search；Search result is formed with connecting segment number, line style, wiring type and four part of line length, and the line length is by secondary line Method for searching path determines that connection segment number, line style and wiring type are determined by specifically connecting component type.
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CN108846174A (en) * 2018-05-29 2018-11-20 珠海格力电器股份有限公司 Wiring method, device, computer equipment and storage medium

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