CN111091477B - Automatic layout method and system for temporary construction of transformer substation engineering - Google Patents
Automatic layout method and system for temporary construction of transformer substation engineering Download PDFInfo
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Abstract
A method and a system for automatic layout of the temporary construction of a transformer substation project generate a three-dimensional model of the transformer substation through three-dimensional modeling software; loading three-dimensional model coordinates of a transformer substation, and creating a target area where a temporary building is located based on a starting point of the model coordinates; adding temporary building components by taking the target area as a reference surface; performing three-dimensional digital automatic layout of temporary building components; combining a target area containing a temporary building component with the three-dimensional model of the transformer substation; performing rationality check on the three-dimensional model of the transformer substation; and displaying a three-dimensional digital scene of the temporary construction arrangement of the transformer substation engineering. The three-dimensional simulation technology is used for the whole-process temporary construction planning design of the transformer substation construction project, the accurate temporary construction arrangement measures are provided, the area matching detection and the position adjustment optimization are carried out, the field arrangement design from bidding to construction is provided, the defects of slow drawing, non-intuitionistic and much adjustment of the traditional design method are overcome, and the environmental protection, fire protection and potential safety hazards after construction are avoided.
Description
Technical Field
The invention relates to the field of transformer substation design, in particular to a method and a system for automatic temporary construction layout of transformer substation engineering.
Background
The construction industry in China has huge scale, and extensive construction modes lead to various management constraints to each participating unit in the construction process. Taking the general planar arrangement of construction as an example, at present, a traditional CAD two-dimensional drawing is generally adopted, if the situation of complex surrounding of a construction site is met, the complete construction site is difficult to express on the CAD two-dimensional drawing, and the arrangement of a temporary construction facility and a temporary construction pipe network in the construction site is independently carried out by means of the two-dimensional drawing and experience of constructors, so that the construction difficulty is high, the general planar arrangement of partial project construction is unreasonable, the follow-up construction is difficult, and unnecessary loss is caused.
In the power transmission and transformation engineering industry, the current domestic power transmission and transformation engineering construction simulation application is less, especially in the aspect of temporary construction, and the simulation application is almost a shortage part in the aspect of transformer substation construction design. Based on the three-dimensional visual simulation technology, before the construction of the transformer substation, the construction unit designs temporary buildings, and can superpose the construction design three-dimensional temporary buildings on the basis of the original three-dimensional design results. However, domestic research application for arranging three-dimensional digital scenes for displaying the temporary construction optimization of the transformer substation engineering is still blank.
In order to thoroughly change the passive situation and better serve the construction of the smart grid, a technology capable of completely realizing the three-dimensional digital scene of the temporary construction arrangement of the substation engineering is needed.
Disclosure of Invention
Aiming at the defects or shortcomings in the prior art, the invention provides an automatic layout method for the temporary construction of a transformer substation project, which is characterized in that:
Step 1: generating a three-dimensional model of the transformer substation through three-dimensional modeling software;
step 2: loading three-dimensional model coordinates of a transformer substation, and creating a target area where a temporary building is located based on a starting point of the model coordinates;
step 3: adding temporary building components by taking the target area as a reference surface, wherein the temporary building components comprise one or more than one;
Step 4: performing three-dimensional digital automatic layout of temporary building components;
step 5: combining a target area containing a temporary building component with the three-dimensional model of the transformer substation;
Step 6: performing rationality check on the three-dimensional model of the transformer substation;
Step 7: and displaying a three-dimensional digital scene of the temporary construction arrangement of the transformer substation engineering.
The system for displaying the three-dimensional digital scene of the temporary construction layout of the transformer substation engineering is further provided, and is characterized in that:
A generation unit: generating a three-dimensional model of the transformer substation through three-dimensional modeling software;
A creation unit: loading three-dimensional model coordinates of the transformer substation, and creating a target area where a temporary building is located based on a starting point of the model coordinates;
An adding unit: adding temporary building components by taking the target area as a reference surface, wherein the temporary building components comprise one or more than one;
layout unit: performing three-dimensional digital automatic layout of temporary building components;
and a combination unit: combining a target area containing a temporary building component with the three-dimensional model of the transformer substation;
Inspection unit: performing rationality check on the three-dimensional model of the transformer substation;
display unit: and displaying a three-dimensional digital scene of the temporary construction arrangement of the transformer substation engineering.
The invention has the beneficial effects that the three-dimensional simulation technology is truly used for the whole-process temporary construction planning design of the transformer substation construction project, and the accurate temporary construction layout measures are provided, so that the area matching detection and the position adjustment optimization are carried out, the field layout design from the bidding stage to the construction stage is provided for construction technicians, the defects of slow drawing, non-intuitionism and great adjustment of the traditional design method are overcome, and the environmental protection, fire protection and potential safety hazard after construction are avoided.
Drawings
Fig. 1 shows a flow frame of the method according to the present invention.
Detailed Description
For a better understanding of the invention, the method of the invention is further described below with reference to the description of embodiments in conjunction with the accompanying drawings.
Numerous specific details are set forth in the following detailed description in order to provide a thorough understanding of the invention. It will be appreciated, however, by one skilled in the art that the invention may be practiced without such specific details. In embodiments, well-known methods, procedures, and components have not been described in detail so as not to unnecessarily obscure embodiments.
Referring to fig. 1, the automatic layout method for the temporary construction of the transformer substation engineering is characterized in that:
Step 1: generating a three-dimensional model of the transformer substation through three-dimensional modeling software;
step 2: loading three-dimensional model coordinates of a transformer substation, and creating a target area where a temporary building is located based on a starting point of the model coordinates;
step 3: adding temporary building components by taking the target area as a reference surface, wherein the temporary building components comprise one or more than one;
Step 4: performing three-dimensional digital automatic layout of temporary building components;
step 5: combining a target area containing a temporary building component with the three-dimensional model of the transformer substation;
Step 6: performing rationality check on the three-dimensional model of the transformer substation;
Step 7: and displaying a three-dimensional digital scene of the temporary construction arrangement of the transformer substation engineering.
Preferably, the temporary construction comprises a temporary building such as a management part, a parking lot, an in-out road, a dormitory area, a pipe network and the like.
Preferably, the method further comprises: and (5) rendering an effect graph by using software, generating a substation engineering temporary construction layout graph, and providing a basis for construction layout.
Preferably, wherein the step 4: the three-dimensional digital automatic layout of the temporary building components is carried out, and the method specifically comprises the following steps:
step 4-1: performing area matching detection on the target area and the added temporary building components;
Step 4-2: performing three-dimensional digital automatic layout of temporary building components;
step 4-3: automatic layout adjustment of the temporary building components.
Preferably, wherein the step 4-1: the area matching detection of the target area and the added temporary building component specifically comprises the following steps:
If the cross sectional area of the single temporary building component exceeds the area of the built target area, the temporary building component selected by the user cannot be matched with the target area, the user is prompted to reselect the temporary building component, and if the cross sectional area of the single temporary building component does not exceed the area of the built target area, the matching is successful; when the user is prompted to reselect the temporary building component, the temporary building component with the cross section area exceeding the area of the target area is prompted.
Preferably, wherein the step 4-2: the three-dimensional digital automatic layout of the temporary building components is carried out, and the method specifically comprises the following steps:
Step 4-2-1, determining the area S1 of the target area and determining the sum S2 of the cross sectional areas of all the temporary building components;
step 4-2-2, comparing the area sizes of the S1 and the S2, and determining a preliminarily selected temporary building component if the S1 is greater than or equal to the S2; if S1 is smaller than S2, prompting the user to reselect the temporary building component, and returning to the step 4-1 until the area requirement is met, and determining the preliminarily selected temporary building component;
Step 4-2-3, dividing the cross section shape of the preliminarily selected temporary building component into a regular pattern and an irregular pattern; carrying out circumscribed rectangular enveloping on the cross section graph of each adjacent building component with an irregular cross section to obtain a minimum circumscribed enveloping rectangle, taking the minimum circumscribed enveloping rectangle as the cross section of the adjacent building component, and determining the sum S3 of the cross sections of all adjacent building components;
Step 4-2-4, comparing the area sizes of the S1 and the S3, if (80%. S1) is greater than or equal to the S3, determining the final selected temporary building component, if (80%. S1) is less than the S3, prompting the user to reselect the temporary building component, and returning to step 4-1 until the area requirement is met, and determining the final selected temporary building component;
and 4-2-5, performing three-dimensional digital automatic layout of the temporary building components in the target area.
Preferably, in the step 4-2-3, the cross section patterns of the temporary building components with irregular cross sections are subjected to circumscribed rectangular envelope, specifically: extracting coordinate information of the irregular cross-section graph, continuously rotating the irregular graph, wherein the angle of each rotation is controlled to be 0-90 degrees until the irregular cross-section graph completes rotation at an angle of 90 degrees; and simultaneously carrying out rectangular orthogonal enveloping in the rotating process to obtain a minimum circumscribed enveloping rectangle, namely a rectangle with an irregular cross section graph of the enveloping and the smallest area.
Preferably, wherein the step 4-3: automatic layout adjustment of temporary building components specifically includes:
In order to realize the layout optimization of each temporary construction in engineering construction, the temporary construction component positions of the target area after the initial automatic layout are adjusted by adopting the following objective functions and constraint conditions:
F(Xi,T)＝aL(Xi,Ti)+bC(Xi,Ti)+cU(Xi,Ti)+dD(Xi,Ti)+eQ(Xi,Ti)
wherein i is the iteration number (i is an integer greater than or equal to 0), X is the coordinate position of the layout of each adjacent building component, T is an adjustment parameter, X 0 is the coordinate position of the initial layout, T 0 is the initial adjustment parameter, a, b, C, D, e is the weight factor of L, C, U, D, Q respectively, L is the total length of the connecting lines of each adjacent building component and the engineering construction main body, C is the total number of connecting line intersections between each adjacent building component, U is the adjacent distance between each adjacent building component, D is the nearest distance between each adjacent building component and the boundary of the target area, and Q is the total uniformity of all adjacent building components;
The constraint conditions are as follows:
Wherein S i is the cross-sectional area of the ith temporary building element, S1 is the target area, n is the number of temporary building elements selected, P i (height) is the height limit of the current layout position of the ith building element for the height of the ith building element,For the foundation depth of the ith temporary building element, P i (base) is the foundation depth limit of the current layout position of the ith temporary building element,P i (square) is the building area limit for the current layout position of the ith temporary building element;
the following optimization steps are adopted to adjust the layout of the temporary building components:
Step 4-3-1, after the initial automatic layout is successful, calculating an objective function of an initial state;
Step 4-3-2, performing temporary building component layout adjustment, and performing position adjustment on one or more temporary building components in the target area;
Step 4-3-3, calculating an objective function again, judging whether to accept the adjustment result according to the constraint condition if the value of the objective function after the position adjustment of the temporary building component is not smaller than the initial value, and returning to the initial automatic layout state if the adjustment result is not accepted, and returning to the execution step 4-3-2; if the current state is smaller than the initial value, the current state is saved and used as the initial state of the next position adjustment;
Step 4-3-4, judging whether to terminate random position adjustment to generate a new state under the current adjustment parameters according to a preset criterion, and if the current adjustment parameters meet the preset criterion, continuing to adjust the positions of the temporary building components; if the preset criterion is not met, the adjustment parameter T is reduced, the iterative process step 4-3-1 is re-entered, and the process is ended until the set convergence criterion is met,
And 4-3-5, taking the position adjustment state of the temporary building component in the current iteration process as the final temporary building component layout.
Preferably, the convergence criterion of the step 4-3-4 is whether the iteration number is satisfied or whether the objective function value of the current iteration is smaller than a threshold value.
The utility model also provides a show transformer substation engineering temporary construction overall arrangement three-dimensional digital scene's system, its characterized in that:
A generation unit: generating a three-dimensional model of the transformer substation through three-dimensional modeling software;
A creation unit: loading three-dimensional model coordinates of the transformer substation, and creating a target area where a temporary building is located based on a starting point of the model coordinates;
An adding unit: adding temporary building components by taking the target area as a reference surface, wherein the temporary building components comprise one or more than one;
layout unit: performing three-dimensional digital automatic layout of temporary building components;
and a combination unit: combining a target area containing a temporary building component with the three-dimensional model of the transformer substation;
Inspection unit: performing rationality check on the three-dimensional model of the transformer substation;
display unit: and displaying a three-dimensional digital scene of the temporary construction arrangement of the transformer substation engineering.
The invention has the beneficial effects that the three-dimensional simulation technology is truly used for the whole-process temporary construction planning design of the transformer substation construction project, the accurate temporary construction arrangement measures are provided, the area matching detection and the position adjustment optimization are carried out, the field arrangement design from the bidding stage to the construction stage is provided for construction technicians, the defects of slow, non-visual and much adjustment of the traditional design method are overcome, and the environmental protection, fire protection and potential safety hazard after construction are avoided
Only the preferred embodiments of the present invention have been described herein, but it is not intended to limit the scope, applicability, and configuration of the invention. Rather, the detailed description of the embodiments will enable those skilled in the art to practice the embodiments. It will be understood that various changes and modifications may be made in the details without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A substation engineering temporary construction automatic layout method is characterized in that:
Step 1: generating a three-dimensional model of the transformer substation through three-dimensional modeling software;
step 2: loading three-dimensional model coordinates of a transformer substation, and creating a target area where a temporary building is located based on a starting point of the model coordinates;
Step 3: adding temporary building components by taking the target area as a reference surface, wherein the temporary building components comprise one or more than one;
Step 4: performing three-dimensional digital automatic layout of temporary building components;
step 5: combining a target area containing a temporary building component with the three-dimensional model of the transformer substation;
Step 6: performing rationality check on the three-dimensional model of the transformer substation;
step 7: displaying a three-dimensional digital scene of the temporary construction arrangement of the transformer substation engineering;
Wherein, the step 4: the three-dimensional digital automatic layout of the temporary building components is carried out, and the method specifically comprises the following steps:
step 4-1: performing area matching detection on the target area and the added temporary building components;
Step 4-2: performing three-dimensional digital automatic layout of temporary building components;
step 4-3: automatic layout adjustment of temporary building components;
Wherein, the step 4-2: the three-dimensional digital automatic layout of the temporary building components is carried out, and the method specifically comprises the following steps:
Step 4-2-1, determining the area S1 of the target area and determining the sum S2 of the cross sectional areas of all the temporary building components;
Step 4-2-2, comparing the area sizes of the S1 and the S2, and determining a preliminarily selected temporary building component if the S1 is greater than or equal to the S2; if S1 is smaller than S2, prompting the user to reselect the temporary building component, and returning to the step 4-1 until the area requirement is met, and determining the preliminarily selected temporary building component;
Step 4-2-3, dividing the cross section shape of the preliminarily selected temporary building component into a regular pattern and an irregular pattern; carrying out circumscribed rectangular enveloping on the cross section graph of each adjacent building component with an irregular cross section to obtain a minimum circumscribed enveloping rectangle, taking the minimum circumscribed enveloping rectangle as the cross section of the adjacent building component, and determining the sum S3 of the cross sections of all adjacent building components;
Step 4-2-4, comparing the area sizes of the S1 and the S3, if 80% & S1 is greater than or equal to S3, determining a final selected temporary building component, if 80% & S1 is less than S3, prompting a user to reselect the temporary building component, and returning to step 4-1 until the area requirement is met, and determining the final selected temporary building component;
step 4-2-5, performing three-dimensional digital automatic layout of the temporary building components in the target area;
Wherein, the step 4-3: automatic layout adjustment of temporary building components specifically includes:
in order to realize the layout optimization of each temporary construction in engineering construction, the temporary construction component positions of the target area after the initial automatic layout are adjusted by adopting the following objective functions and constraint conditions:
F(Xi,T)＝aL(Xi,Ti)+bC(Xi,Ti)+cU(Xi,Ti)+dD(Xi,Ti)+eQ(Xi,Ti)
wherein i is the iteration number, i is an integer greater than or equal to 0, X is the coordinate position of the layout of each adjacent building component, T is an adjustment parameter, X 0 is the coordinate position of the initial layout, T 0 is the initial adjustment parameter, a, b, C, D, e is the weight factor of L, C, U, D, Q respectively, L is the total length of the connecting lines of each adjacent building component and the engineering construction main body, C is the total number of connecting line intersections between each adjacent building component, U is the adjacent distance between each adjacent building component, D is the nearest distance between each adjacent building component and the boundary of the target area, and Q is the total uniformity of all adjacent building components;
The constraint conditions are as follows:
Wherein S j is the cross-sectional area of the jth temporary component, S1 is the target area, n is the number of temporary components selected, P j (height) is the height limit of the current layout position of the jth building elementFor the foundation depth of the jth critical component, P j (base) is the foundation depth limit of the current layout position of the jth critical component,P j (square) is the building area limit of the current layout position of the jth temporary building element;
the following optimization steps are adopted to adjust the layout of the temporary building components:
Step 4-3-1, after the initial automatic layout is successful, calculating an objective function of an initial state;
Step 4-3-2, performing temporary building component layout adjustment, and performing position adjustment on one or more temporary building components in the target area;
Step 4-3-3, calculating an objective function again, judging whether to accept the adjustment result according to the constraint condition if the value of the objective function after the position adjustment of the temporary building component is not smaller than the initial value, and returning to the initial automatic layout state if the adjustment result is not accepted, and returning to the execution step 4-3-2; if the current state is smaller than the initial value, the current state is saved and used as the initial state of the next position adjustment;
Step 4-3-4, judging whether to terminate random position adjustment to generate a new state under the current adjustment parameters according to a preset criterion, and if the current adjustment parameters meet the preset criterion, continuing to adjust the positions of the temporary building components; if the preset criterion is not met, the adjustment parameter T is reduced, the iterative process step 4-3-1 is re-entered, and the process is ended until the set convergence criterion is met,
And 4-3-5, taking the position adjustment state of the temporary building component in the current iteration process as the final temporary building component layout.
2. The automatic layout method for the temporary construction of the transformer substation engineering according to claim 1, wherein the temporary construction components comprise a management part, a parking lot, an access road, a dormitory area and a pipe network.
3. The substation engineering temporary construction automatic layout method according to claim 1, wherein the method further comprises: and (5) rendering an effect graph by using software, generating a substation engineering temporary construction layout graph, and providing a basis for construction layout.
4. The automatic layout method for the temporary construction of the transformer substation engineering according to claim 1, wherein the step 4-1: the area matching detection of the target area and the added temporary building component specifically comprises the following steps:
If the cross sectional area of the single temporary building component exceeds the area of the built target area, the temporary building component selected by the user cannot be matched with the target area, the user is prompted to reselect the temporary building component, and if the cross sectional area of the single temporary building component does not exceed the area of the built target area, the matching is successful; when the user is prompted to reselect the temporary building component, the temporary building component with the cross section area exceeding the area of the target area is prompted.
5. The automatic layout method for the temporary construction of the transformer substation engineering according to claim 4, wherein the step 4-2-3 is to conduct circumscribed rectangular enveloping on the cross section graph of each temporary construction component with an irregular cross section, and specifically comprises the following steps: extracting coordinate information of the irregular cross-section graph, continuously rotating the irregular graph, wherein the angle of each rotation is controlled between 0 and 90 degrees until the irregular cross-section graph completes rotation at an angle of 90 degrees; and simultaneously carrying out rectangular orthogonal enveloping in the rotating process to obtain a minimum circumscribed enveloping rectangle, namely a rectangle with an irregular cross section pattern of the enveloping and the minimum area.
6. The automatic layout method for the temporary construction of the transformer substation engineering according to claim 1, wherein the convergence criterion of the step 4-3-4 is whether the iteration number is satisfied or whether the objective function value of the current iteration is smaller than a threshold value.
7. The utility model provides a system of automatic overall arrangement is built to transformer substation engineering face which characterized in that:
A generation unit: generating a three-dimensional model of the transformer substation through three-dimensional modeling software;
A creation unit: loading three-dimensional model coordinates of a transformer substation, and creating a target area where a temporary building is located based on a starting point of the model coordinates;
an adding unit: adding temporary building components by taking the target area as a reference surface, wherein the temporary building components comprise one or more than one;
layout unit: performing three-dimensional digital automatic layout of temporary building components;
and a combination unit: combining a target area containing a temporary building component with the three-dimensional model of the transformer substation;
Inspection unit: performing rationality check on the three-dimensional model of the transformer substation;
display unit: displaying a three-dimensional digital scene of the temporary construction arrangement of the transformer substation engineering;
the layout unit is specifically used for carrying out area matching detection on the target area and the added temporary building components;
performing three-dimensional digital automatic layout of temporary building components;
automatic layout adjustment of temporary building components;
The three-dimensional digital automatic layout of the temporary building components is specifically used for determining the area S1 of the target area and determining the sum S2 of the cross sectional areas of all temporary building components;
Comparing the area sizes of the S1 and the S2, and if the S1 is greater than or equal to the S2, determining a preliminarily selected temporary building component; if S1 is smaller than S2, prompting a user to reselect a temporary building component, and returning to the target area and the added temporary building component for area matching detection until the area requirement is met, and determining a preliminarily selected temporary building component;
Dividing the cross section shape of the preliminarily selected temporary building component into a regular pattern and an irregular pattern; carrying out circumscribed rectangular enveloping on the cross section graph of each adjacent building component with an irregular cross section to obtain a minimum circumscribed enveloping rectangle, taking the minimum circumscribed enveloping rectangle as the cross section of the adjacent building component, and determining the sum S3 of the cross sections of all adjacent building components;
Comparing the area sizes of the S1 and the S3, if 80% & S1 is greater than or equal to S3, determining a final selected temporary building component, if 80% & S1 is less than S3, prompting a user to reselect the temporary building component, and returning to the area matching detection of the target area and the added temporary building component until the area requirement is met, and determining the final selected temporary building component;
Three-dimensional digital automatic layout of temporary building components is carried out in the target area;
The automatic layout adjustment of the temporary construction assembly is specifically used for adjusting the temporary construction assembly position of the target area after the initial automatic layout in order to realize the layout optimization of each temporary construction in engineering construction, and adopts the following objective function and constraint conditions:
F(Xi,T)＝aL(Xi,Ti)+bC(Xi,Ti)+cU(Xi,Ti)+dD(Xi,Ti)+eQ(Xi,Ti)
wherein i is the iteration number, i is an integer greater than or equal to 0, X is the coordinate position of the layout of each adjacent building component, T is an adjustment parameter, X 0 is the coordinate position of the initial layout, T 0 is the initial adjustment parameter, a, b, C, D, e is the weight factor of L, C, U, D, Q respectively, L is the total length of the connecting lines of each adjacent building component and the engineering construction main body, C is the total number of connecting line intersections between each adjacent building component, U is the adjacent distance between each adjacent building component, D is the nearest distance between each adjacent building component and the boundary of the target area, and Q is the total uniformity of all adjacent building components;
The constraint conditions are as follows:
Wherein S j is the cross-sectional area of the jth temporary component, S1 is the target area, n is the number of temporary components selected, P j (height) is the height limit of the current layout position of the jth critical component for the height of the jth critical component,For the foundation depth of the jth critical component, P j (base) is the foundation depth limit of the current layout position of the jth critical component,P j (square) is the building area limit of the current layout position of the jth temporary building element;
the following optimization steps are adopted to adjust the layout of the temporary building components:
after the initial automatic layout is successful, calculating an objective function of an initial state;
Performing temporary building component layout adjustment, and performing position adjustment on one or more temporary building components in the target area;
Calculating an objective function again, if the value of the objective function after the position adjustment of the temporary building components is not smaller than the initial value, judging whether to accept the adjustment result according to the constraint condition, if not, returning to the initial automatic layout state, returning to execute the temporary building component layout adjustment, and carrying out the position adjustment on one or more temporary building components in the target area; if the current state is smaller than the initial value, the current state is saved and used as the initial state of the next position adjustment;
judging whether to terminate random position adjustment under the current adjustment parameters to generate a new state according to a preset criterion, and if the current adjustment parameters meet the preset criterion, continuing to adjust the position of the temporary building component; if the preset criterion is not met, reducing the adjustment parameter T, re-entering the iterative process, after the initial automatic layout is successful, calculating the objective function of the initial state, ending until the preset convergence criterion is met,
And taking the position adjustment state of the temporary building component in the current iteration flow as the final temporary building component layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241142.1A CN111091477B (en) | 2018-10-24 | Automatic layout method and system for temporary construction of transformer substation engineering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241142.1A CN111091477B (en) | 2018-10-24 | Automatic layout method and system for temporary construction of transformer substation engineering |
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| Publication Number | Publication Date |
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| CN111091477A CN111091477A (en) | 2020-05-01 |
| CN111091477B true CN111091477B (en) | 2024-07-16 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737409A (en) * | 2012-06-28 | 2012-10-17 | 北京中科广视科技有限公司 | Method for generating three-dimensional virtual interior design plan |
| CN102902847A (en) * | 2012-09-17 | 2013-01-30 | 华北电力大学 | Transmission grid single line diagram automatic design method based on combination primitives |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737409A (en) * | 2012-06-28 | 2012-10-17 | 北京中科广视科技有限公司 | Method for generating three-dimensional virtual interior design plan |
| CN102902847A (en) * | 2012-09-17 | 2013-01-30 | 华北电力大学 | Transmission grid single line diagram automatic design method based on combination primitives |
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