CN115358034A - An intelligent layout method and system based on BIM pipe comprehensive optimization design - Google Patents

Abstract

The invention provides an intelligent arrangement method and system based on BIM (building information modeling) comprehensive optimization design, which relate to the technical field of electromechanical comprehensive arrangement, and are characterized in that an adjustment principle when BIM comprehensive optimization is constructed by taking a BIM comprehensive optimization design target as a reference, a pipeline arrangement space constraint condition is constructed based on electromechanical pipeline arrangement space characteristics, whether a current pipeline arrangement scheme meets the pipeline arrangement space constraint condition or not is judged, and if the current pipeline arrangement scheme does not meet the pipeline arrangement space constraint condition, scheme adjustment is carried out based on the adjustment principle to obtain a preset number of candidate arrangement schemes; the method has the advantages that the cost objective function is constructed to screen the scheme, the arrangement scheme with the lowest cost is obtained, the technical problems that in the detection method of the pipeline arrangement scheme in the prior art, due to the fact that the analysis process is not strict enough and auxiliary optimization of a comparison scheme is lacked, the finally determined pipeline arrangement scheme is complemented in accuracy, certain potential operation risk possibly exists, and rework adjustment is needed in the later period are solved, and accurate arrangement of actual fit of the electromechanical pipelines is achieved.

Description

An intelligent layout method and system based on BIM pipe comprehensive optimization design

technical field

The invention relates to the technical field of electromechanical pipe heald arrangement, in particular to an intelligent arrangement method and system based on BIM pipe heald optimization design.

Background technique

With the development of society, the requirements for the construction of construction projects are getting higher and higher. Due to the increase in equipment demand, the layout of pipelines is becoming more and more complicated. At the same time, considering the aesthetics and practicality of the project, it is necessary It is necessary to carry out the design of the pipeline layout plan, and arrange the construction based on the design plan. Therefore, the accuracy of the plan affects the subsequent construction standards. If there is a deviation in the plan, there may be potential application risks, and rework adjustments are required in the later stage. The pipeline layout plan is used for model simulation and trial application to analyze and adjust the deviation of the scheme to ensure normal engineering construction. However, due to the limitations of existing technologies, the analysis and detection of the pipeline layout scheme is not accurate enough.

In the existing technology, the commonly used pipeline layout scheme detection method is not rigorous enough due to the lack of assisted optimization of the comparison scheme, so that the accuracy of the final pipeline layout scheme is supplemented, and there may be certain potential operational risks. Make rework adjustments.

Contents of the invention

This application provides an intelligent layout method and system based on BIM pipeline comprehensive optimization design, which is used to solve the detection method of pipeline layout schemes in the prior art. Due to the lack of rigorous analysis process and the lack of auxiliary optimization of comparison schemes, In order to supplement the accuracy of the finalized pipeline layout plan, there may be certain potential operational risks, and technical problems that require rework and adjustment in the later stage.

In view of the above problems, the present application provides an intelligent layout method and system based on the optimal design of BIM pipe heaves.

In the first aspect, the present application provides an intelligent arrangement method based on BIM pipe comprehensive optimization design, the method includes: obtaining BIM pipe comprehensive optimization design target, constructing BIM pipe comprehensive optimization design target based on the BIM pipe comprehensive optimization design target The adjustment principle; obtain the spatial characteristics of the electromechanical pipeline layout, and construct the spatial constraints of the pipeline layout based on the spatial characteristics of the electromechanical pipeline layout; obtain the current pipeline layout scheme, and judge whether the current pipeline layout scheme satisfies the pipeline Arrangement space constraints; when not satisfied, adjust the current pipeline layout scheme based on the adjustment principle of the BIM pipeline optimization, and use the pipeline layout space constraints to judge the adjustment scheme, and obtain A preset number of candidate arrangement schemes; constructing a cost objective function, and selecting an arrangement scheme with the lowest cost from the candidate arrangement schemes based on the cost objective function as a final output arrangement scheme.

In the second aspect, the present application provides an intelligent layout system based on BIM pipe comprehensive optimization design, the system includes: a principle building module, the principle building module is used to obtain the BIM pipe comprehensive optimization design target, based on the BIM Pipeline comprehensive optimization design objectives to construct the adjustment principle of BIM pipeline comprehensive optimization; constraint condition construction module, the constraint condition construction module is used to obtain the spatial characteristics of electromechanical pipeline layout, and construct pipeline layout based on the spatial characteristics of electromechanical pipeline layout Space constraints; scheme judgment module, the scheme judgment module is used to obtain the current pipeline layout scheme, and judge whether the current pipeline layout scheme satisfies the pipeline layout space constraints; scheme adjustment module, the scheme adjustment module When it is not satisfied, adjust the current pipeline layout scheme based on the adjustment principle of the BIM pipeline comprehensive optimization, and use the pipeline layout space constraints to judge the adjustment scheme to obtain the preset number The candidate layout scheme; the scheme screening module, the scheme screening module is used to construct the cost objective function, and based on the cost objective function, the lowest cost arrangement scheme is selected from the candidate arrangement scheme as the final output arrangement scheme .

One or more technical solutions provided in this application have at least the following technical effects or advantages:

The embodiment of the present application provides an intelligent layout method based on the optimization design of BIM pipeline comprehensiveness, which uses the BIM pipeline comprehensive optimization design target as a benchmark to construct the adjustment principle of BIM pipeline comprehensive optimization, and constructs pipeline layout based on the spatial characteristics of electromechanical pipeline layout Space constraint conditions, judging whether the current pipeline layout plan satisfies the pipeline layout space constraints, if not, adjust the scheme based on the adjustment principle of the BIM pipeline optimization, and use the pipeline layout space constraints Conditions are used to judge the adjustment scheme to obtain a preset number of candidate layout schemes; constructing a cost objective function to select the lowest-cost layout scheme from the candidate layout schemes as the final output layout scheme, which solves the problem of prior art Due to the lack of rigorous analysis process and the lack of auxiliary optimization of the comparison scheme, the detection method of the pipeline layout scheme in the system makes the accuracy of the final pipeline layout scheme supplemented, and there may be certain potential operational risks, which need to be reworked and adjusted later. Technical problems have been solved, and the actual fit and precise arrangement of electromechanical pipelines have been realized.

Description of drawings

Fig. 1 provides a schematic flow chart of an intelligent arrangement method based on BIM pipe comprehensive optimization design for the application;

Fig. 2 is a schematic diagram of the acquisition process of electromechanical pipeline arrangement space characteristics in the intelligent arrangement method based on BIM pipe heald optimization design provided by the present application;

Fig. 3 provides a schematic diagram of the acquisition process of candidate layout schemes in the intelligent layout method based on BIM pipe comprehensive optimization design for the present application;

Fig. 4 is a schematic structural diagram of an intelligent arrangement system based on BIM pipe comprehensive optimization design provided by the present application.

Explanation of reference numerals: principle construction module 11 , constraint condition construction module 12 , scheme judgment module 13 , scheme adjustment module 14 , and scheme screening module 15 .

Detailed ways

This application provides an intelligent layout method and system based on the optimal design of BIM pipe comprehensive, and constructs the adjustment principle of BIM pipe comprehensive optimization based on the BIM pipe comprehensive optimization design goal, and constructs the pipeline layout based on the spatial characteristics of electromechanical pipeline layout Space constraints, to judge whether the current pipeline layout scheme meets the pipeline layout space constraints, if not, adjust the scheme based on the adjustment principle to obtain a preset number of candidate layout schemes; construct a cost objective function to screen schemes, and obtain cost The lowest layout scheme is used to solve the detection method of the pipeline layout scheme in the existing technology. Due to the lack of rigorous analysis process and the lack of auxiliary optimization of the comparison scheme, the accuracy of the final pipeline layout scheme is supplemented, and there may be some problems. Potential operational risks, and technical problems that require rework and adjustment in the later stage.

Embodiment one

As shown in Figure 1, the present application provides an intelligent layout method based on the optimal design of BIM pipe healds, the method comprising:

Step S100: Obtaining the optimization design target of BIM management system, and constructing the adjustment principle for BIM management optimization based on the BIM management design target;

Specifically, this application provides an intelligent layout method based on the optimal design of BIM pipeline comprehensiveness. By optimizing and adjusting various current pipeline layout schemes, the pipeline layout scheme with the best adaptability to actual requirements can be obtained. , which can effectively prevent the construction unit and project personnel from timely correcting various potential problems such as pipeline collisions during the construction process, avoid multiple corrections and rework of the project, and reduce the loss of engineering quantity. First of all, the optimization design goal of the BIM pipeline To obtain, the BIM pipeline comprehensive optimization design target refers to the design target requirements of the pipeline scheme, such as the design purpose of the pipeline scheme, the final application standard achieved, etc., and the BIM pipeline comprehensive optimization design target is used as a benchmark to carry out the BIM The construction of the adjustment principle in the optimization of the pipeline, the adjustment principle refers to the limit standard in the pipeline adjustment, for example, the adjustment standard for the position of the pipeline, such as the safe arrangement distance corresponding to the pipeline with different functions, hot water pipes, sewage The setting distance and deep burial position of the adjacent pipelines corresponding to the discharge pipelines are different. The principle of concession when pipelines overlap or conflict, such as small pipes to large pipes, low temperature pipes to high temperature pipes, low pressure pipes to high pressure pipes, etc., the above adjustments The principles are classified and integrated, and the acquisition of the adjustment principles provides basic constraints for the subsequent optimization and adjustment of the pipeline layout scheme.

Further, based on the BIM pipe comprehensive optimization design target to construct the adjustment principle of BIM pipe comprehensive optimization, the step S100 of this application also includes:

Step S110: Perform target parameter composition analysis based on the BIM pipe integration optimization design target, and determine target description parameters;

Step S120: performing feature extraction on the target description parameters corresponding to each BIM management optimization design target to obtain target parameter features;

Step S130: According to the target value of each BIM pipe comprehensive optimization design target and the corresponding target parameter characteristics, construct the fitness function of each target;

Step S140: Based on all target fitness functions, the adjustment principle for the optimization of the BIM management system is obtained.

Specifically, the optimal design target of the BIM pipe comprehensive is obtained, and the composition analysis of the target parameters is carried out based on the optimized design target of the BIM pipe comprehensive. Layout parameters, etc., using the target parameters as the analysis standard to determine the target description parameters, the target description parameters refer to the parameter data describing the specific conditions of the target parameters, such as the specific type of pipeline collision, pipeline position overlap or pipeline direction Pipeline collisions caused by conflicts, further multi-angle analysis of the target description parameters corresponding to each BIM pipeline comprehensive optimization design target can effectively improve the accuracy of analysis, avoid visual errors caused by recognition deviation, and further perform feature extraction to obtain the target Parameter characteristics, the target parameter characteristics refer to the specific data characteristics exhibited by the target parameters, for example, the specific overlapping mode, the number of overlapping pipelines, the type of pipelines, etc. when the pipeline positions overlap; the number of conflicting pipelines, the conflicting degree etc.

Further, based on the target value of each BIM management optimization design target and the characteristics of the target parameters, the construction of each target fitness function is carried out based on the corresponding relationship between the target requirements and the target parameters, wherein the BIM management The target value of the optimal design target corresponds to the target parameter characteristics. Exemplarily, when the target requirement is the minimum cost requirement, the corresponding target fitness function is the target minimum function, and further fitness calculation is performed to satisfy The target, the higher the fitness, the higher the satisfaction of the stated target, the closer to the target requirement, it will be used as the subsequent optimization standard, and all the determined target fitness functions will be integrated and processed as the adjustment principle of the BIM management optimization , through parameter feature analysis and fitness function construction, the finalized adjustment principle is more objective.

Step S200: Obtain the spatial characteristics of the electromechanical pipeline arrangement, and construct the spatial constraints of the pipeline arrangement based on the spatial characteristics of the electromechanical pipeline arrangement;

Specifically, the characteristics of the arrangement space of the electromechanical pipelines are acquired, and the arrangement space characteristics refer to the space arrangement requirements of different types of pipelines when the pipelines are arranged, for example, gas pipes such as air ducts are arranged above, liquid On the bottom, the high-pressure pipeline is on the top, the low-pressure pipeline is on the bottom, and the maintenance space needs to be reserved for the pipelines that need to be repaired frequently. Exemplarily, based on the actual engineering requirements, the specific space constraint requirements are set based on the spatial characteristics of the electromechanical pipeline arrangement. Based on the actual engineering space, set the pipe depth distribution of different types of pipelines, etc., and construct the pipeline layout space constraints to provide basic limited information for subsequent pipeline layout adjustments.

Further, as shown in FIG. 2 , the step S200 of obtaining the spatial characteristics of electromechanical pipeline arrangement in this application also includes:

Step S210-1: Read the layout position of electromechanical pipelines through the BIM model;

Step S220-1: mark the connection space according to the arrangement position of the electromechanical pipeline, and determine the mark position;

Step S230-1: Based on the marked position, extract the spatial structure of the marked position and the spatial dimension of the marked position through the BIM model;

Step S240-1: Extracting structural space features and dimension space features according to the marked position space structure and the marked position space size to obtain the electromechanical pipeline layout space features.

Specifically, based on the BIM model, the position of the arrangement of the electromechanical pipelines is read, and the BIM model is a virtual model of the space structure of the pipeline arrangement of the constructed target project, which matches the current status of the actual project. Exemplary , the spatial coordinate system can be constructed based on the pipeline layout space to determine the pipeline layout position, and the connection space can be marked based on the electromechanical pipeline layout position, that is, the spatial position through which the pipeline passes can be based on different serial numbers for different types of pipelines Marking is convenient for identification and distinction, further classifying and integrating to determine the marking position, taking the marking position as a reference, extracting the spatial structure of the marking position and the spatial size of the marking position according to the BIM model, the The spatial structure of the marked position is the specific spatial layout of the position point, and the structural space feature extraction is carried out on the spatial structure of the marked position, such as the design status of the wall, the material, etc., to determine whether it is suitable for the layout of the pipeline, and whether the forced layout will cause potential damage. risk, etc., the marked position space size refers to the area of the space interval, and the dimension space feature extraction is performed on the marked position space size, such as wall shape, thickness, height, corner, etc., layout complexity, etc. To limit the impact, increase the difficulty of wiring, etc., the spatial layout characteristics of the electromechanical pipelines can be obtained through information integration, and the spatial structure analysis of the pipeline layout can be carried out by constructing a BIM model, which can effectively improve the accuracy of the finally determined spatial characteristics of the pipeline layout. Spend.

Further, based on the spatial characteristics of the electromechanical pipeline layout, constructing the pipeline layout space constraints, the step S200 of the present application also includes:

Step S210-2: Perform constraint feature extraction according to the structural space features, and obtain the constraint relationship between the structural space constraint features and the wiring scheme;

Step S220-2: Perform constraint feature extraction according to the dimensional space feature, and obtain the constraint relationship between the dimensional space constraint feature and the wiring scheme;

Step S230-2: Obtain a historical wiring scheme information set, perform a constraint impact ratio analysis on the structural space constraint feature and size space constraint feature on the historical wiring scheme information set, and determine the influence weight of the constraint feature;

Step S240-2: According to the influence weight of the constraint feature, the constraint relationship between the structural space constraint feature and the wiring scheme, and the constraint relationship between the dimension space constraint feature and the wiring scheme, construct the pipeline arrangement space constraint condition.

Specifically, by performing feature extraction on the marked position space structure and the marked position space dimension, the structural space feature and the dimension space feature are obtained, and the constraint feature extraction is performed based on the structural space feature, for example, horizontal When passing through the wall, obstacles such as doors and windows need to be arranged around, and multiple pipeline layout constraint features are obtained to limit the wiring scheme, and the structural space constraint features and the wiring scheme are determined. Constraint relations, similarly, extract constraint features based on the dimensional and spatial features, for example, due to the limitation of the size of the wall, when wiring, determine whether to cross the wall or vertically, the direction of the pipeline, the inflection point, etc., to obtain multiple pipelines The layout constraint feature restricts the wiring scheme, and determines the constraint relationship between the dimension space constraint feature and the wiring scheme.

Further, the historical wiring scheme information set is obtained, the historical wiring scheme information set refers to the wiring scheme information that has been used in the past predetermined time period based on big data collection, and based on the historical wiring scheme information, the structure Perform feature constraint influence analysis on the spatial constraint feature and the size and space constraint feature, wherein the greater the impact of the constraint feature on the wiring scheme and the higher the impact ratio, the greater the impact weight value of the constraint feature, and the obtained Constraint features affect weights. For example, the historical wiring scheme information can be used to construct a feature constraint analysis curve to visualize the influence of constraint features, so as to reduce the complexity of information analysis, and then affect the weight of the constraint features, the structure Information mapping and information integration are performed on the constraint relationship between the spatial constraint feature and the wiring scheme, and the constraint relationship between the dimension space constraint feature and the wiring scheme, and the spatial constraint conditions of the pipeline layout are obtained, and the analysis is based on historical actual information, which can effectively improve the analysis results. actual fit.

Step S300: Obtain the current pipeline layout scheme, and judge whether the current pipeline layout scheme satisfies the pipeline layout space constraints;

Step S400: When it is not satisfied, adjust the current pipeline layout plan based on the adjustment principle of the BIM pipeline comprehensive optimization, and use the pipeline layout space constraints to judge the adjustment scheme, and obtain the preset number of candidate arrangement schemes;

Specifically, the current pipeline layout scheme is collected, the current pipeline layout scheme refers to the pipeline layout scheme based on actual engineering information and layout space design, and the pipeline layout scheme is calculated based on the pipeline layout space constraints The current pipeline layout scheme is analyzed and judged step by step to determine whether the current pipeline layout scheme satisfies the pipeline layout space constraints. is the final pipeline layout scheme, when the current pipeline layout scheme does not meet the pipeline layout space constraints, the current pipeline layout scheme is adjusted based on the adjustment principle during the BIM pipeline optimization performing multiple adjustment combinations to obtain multiple adjustment schemes, further judging whether the adjustment scheme satisfies the constraints of the pipeline layout space, obtaining an adjustment scheme that satisfies the pipeline layout space constraints, and judging whether the preset is satisfied number, the preset number is a quantity standard for limiting the candidate arrangement schemes, and when the adjustment scheme is greater than the preset number, the adjustment scheme that satisfies the constraints of the pipeline layout space is subjected to a scheme optimization judgment, Further, scheme screening is performed, and adjustment schemes meeting the preset number are acquired as the candidate arrangement schemes.

Step S500: Construct a cost objective function, and select an arrangement scheme with the lowest cost from the candidate arrangement schemes based on the cost objective function as a final output arrangement scheme.

Specifically, the cost objective function is constructed based on the actual engineering space framework, the cost objective function is a function for calculating the engineering cost of the candidate arrangement scheme, and the cost objective function is set as the minimum cost requirement, respectively The candidate arrangement schemes are calculated based on the cost objective function, the working condition cost of each of the candidate arrangement schemes is determined, and the schemes are screened based on the principle of minimum target, and the arrangement scheme with the lowest cost among the candidate arrangement schemes is determined , taking it as the final pipeline layout scheme, through the adjustment, optimization and iterative screening of the current pipeline layout scheme, the optimal pipeline layout scheme that is consistent with the actual working conditions and the lowest cost can be determined, and this is used as a benchmark Carry out follow-up pipeline layout construction.

Further, as shown in Figure 3, the current pipeline layout scheme is adjusted based on the adjustment principle of the BIM pipeline optimization, and the adjustment scheme is judged by using the pipeline layout space constraints, and the predicted For the number of candidate arrangement schemes, step S400 of this application also includes:

Step S410: Based on the adjustment principles of the BIM pipeline optimization, use each adjustment principle to adjust and combine the current pipeline layout schemes to obtain an adjustment scheme set;

Step S420: Using the space constraints of the pipeline layout to judge the set of adjustment schemes, and obtain the layout scheme that satisfies the constraints;

Step S430: judging whether the arrangement scheme satisfying the constraints meets the preset number;

Step S440: When it is satisfied, use the arrangement scheme that satisfies the constraint condition as the candidate arrangement scheme.

Specifically, based on the BIM piping comprehensive optimization design goals, the adjustment principles for BIM piping comprehensive optimization are constructed, and the current pipeline layout scheme is adjusted and combined based on each adjustment principle. For example, for the same pipeline layout defect Adjustments can be made in a variety of ways, such as pipeline surrounds, internal lines, external lines, etc., to obtain multiple adjustment schemes that meet the adjustment principles and have differences, as the set of adjustment schemes, and further determine whether the set of adjustment schemes satisfies the requirements of the pipeline arrangement. Layout space constraint conditions, filter and exclude the adjustment schemes that do not meet the pipeline layout space constraints, obtain the layout schemes that meet the pipeline layout space constraints, and reduce the amount of analysis data by adjusting and screening the schemes , further judging whether the arrangement scheme satisfying the constraint condition satisfies the preset number, the preset number refers to the minimum number of schemes that limit the arrangement scheme satisfying the constraint condition, for example, the preset number can be set The number is 10, and finally the final candidate output scheme is determined by optimizing the schemes that meet the requirements. The more arrangement schemes that meet the constraint conditions, the greater the space for subsequent optimization and adjustment. When the When the arrangement schemes satisfying the constraints meet the preset number, that is, the number is greater than or equal to the preset number, the arrangement schemes satisfying the constraints are screened to determine the candidate arrangement schemes.

Furthermore, after judging whether the arrangement scheme satisfying the constraints meets the preset number, step S430 of the present application further includes:

Step S431: When not satisfied, if the number of the layout schemes satisfying the constraints is less than the preset number, input the layout schemes satisfying the constraints into the BIM model for scheme simulation. According to the scheme simulation screen, based on the set Adjust the parameters of the wiring scheme according to the space constraints of the pipeline layout, obtain the simulation adjustment scheme and add the layout scheme that satisfies the constraints;

Step S432: If the number of arrangement schemes satisfying constraint conditions after adding the simulated adjustment scheme still does not meet the preset number, use the current number of arrangement schemes satisfying constraint conditions as the candidate arrangement schemes.

Specifically, it is judged whether the arrangement plan satisfying the constraint condition satisfies the preset number, and when it is not satisfied, that is, when the number of the arrangement plan meeting the constraint condition is less than the preset number, it indicates There are few layout schemes, and the accuracy of follow-up scheme optimization cannot be guaranteed. Input the layout schemes satisfying the constraint conditions into the BIM model, perform real-time operation layout simulation on multiple schemes, obtain the simulation screen of the schemes, and further Based on the space constraints of the pipeline layout, multiple trial adjustments of the wiring scheme are carried out to obtain a qualified pipeline adjustment scheme that meets the standards. Due to the adjustment based on the current scheme, the adjustment result of the scheme may have a local optimum. Through the model Part of the parameter correction can be carried out during the simulation process, and other qualified schemes can be obtained by performing simulation adjustments, such as adding them to the arrangement scheme that satisfies the constraint conditions to supplement the candidate schemes, and further judging the satisfaction of the constraints after adding the simulation adjustment scheme Whether the conditional arrangement plan satisfies the preset number, when the arrangement plan that satisfies the constraints after adding the simulation adjustment plan still does not meet the preset number, because there are few qualified plans, no plan optimization is needed Screening, according to the current number of arranging schemes satisfying the constraint conditions as the candidate arranging schemes.

Further, step S440 of this application also includes:

Step S441: If the number of the arrangement schemes satisfying the constraints is greater than the preset number, use an optimization algorithm to perform optimization calculations on the arrangement schemes satisfying the constraints according to the preset number, and determine Optimizing solutions satisfying the preset number are used as the candidate arrangement solutions.

Further, the said optimization algorithm is used to optimize and calculate the arrangement schemes satisfying the constraint conditions according to the preset number, and determine the optimization schemes satisfying the preset number, and the step S441 of the present application further includes:

Step S4411: Randomly select two schemes from the arrangement schemes satisfying the constraint conditions, and use the adjustment principle of BIM management optimization to perform fitness evaluation, and obtain the respective fitness degrees of the two schemes;

进行概率判别，其中，第一寻优方案适应度为w₁、当前比对方案适应度为w₂，e为自然对数、k为常数；Step S4412: Select a scheme with high fitness as the first optimization scheme, and then randomly select a scheme from the remaining schemes that satisfy the constraint conditions, evaluate the fitness with the first optimization scheme, and select the scheme with high fitness as the current best Optimal scheme, continuous iteration, if the number of the first optimal scheme as the current optimal exceeds the preset number, add the discriminant formula

Carry out probability discrimination, where the fitness of the first optimization scheme is w ₁ , the fitness of the current comparison scheme is w ₂ , e is the natural logarithm, and k is a constant;

Step S4413: If P is greater than the random number in the [0,1) interval, then use the current comparison scheme as the current optimal strategy; if not, use the first optimization scheme as the current optimal strategy;

Step S4414: Repeat the iteration until the optimization stop condition is reached, select a preset number of solutions from all the current optimal solutions as the candidate arrangement solutions.

Specifically, it is judged whether the number of the arrangement schemes satisfying the constraint conditions is greater than the preset number. Two schemes are randomly selected from the constraints arrangement scheme, and the fitness evaluation of the schemes is performed based on the adjustment principle during the optimization of BIM management, and the principle fitness of the two schemes is determined, and the fitness of the two schemes and the principle fitness are obtained. The higher it is, the higher the fitness of the scheme is, and the more consistent it is with the actual construction situation. The fitness of the two schemes is compared, and the scheme with higher fitness is determined to be the current optimal scheme, and it is used as the first search. Excellent solution.

进行方案寻优概率计算，其中，第一寻优方案适应度为w₁、当前比对方案适应度为w₂，e为自然对数、k为常数，计算P确定寻优概率，若P为大于[0,1)区间的随机数，则将当前比对方案作为当前最优策略，若否，则将第一寻优方案作为当前最优方案，通过参考模拟退火算法进行方案寻优，可避免方案的初始寻优过程中，由于参数不稳定造成局部最优，影响寻优结果，重复上述寻优迭代操作，直至达到所述寻优停止条件时停止进行方案寻优操作，例如，可设定预定寻优次数作为所述寻优停止条件，获取多个所述当前最优方案，从所有的所述当前最优方案中筛选预设个数的方案作为所述候选排布方案，通过进行方案寻优筛选，可保障所述候选排布方案的优选性。Further, a scheme is randomly extracted from the remaining schemes satisfying the constraints, and the fitness of the scheme is determined based on the adjustment principle, and then the fitness is compared with the first optimization scheme to determine whether the fitness is relatively high. The higher one is the current optimal solution, and the solution is iterated. If the number of times the first optimization solution is the current optimal solution exceeds the preset number, based on the discriminant formula

Carry out the calculation of the optimization probability of the scheme, in which, the fitness of the first optimization scheme is w ₁ , the fitness of the current comparison scheme is w ₂ , e is the natural logarithm, and k is a constant, calculate P to determine the optimization probability, if P is greater than the random number in the [0,1) interval, the current comparison scheme is taken as the current optimal strategy, if not, the first optimization scheme is taken as the current optimal scheme, and the scheme is optimized by referring to the simulated annealing algorithm, which can be In the initial optimization process of avoiding the scheme, local optimum is caused due to unstable parameters, which affects the optimization result, and the above-mentioned optimization iterative operation is repeated until the optimization stop condition is reached to stop the scheme optimization operation. For example, it can be set Set the predetermined number of times of optimization as the optimization stop condition, obtain a plurality of the current optimal solutions, and select a preset number of solutions from all the current optimal solutions as the candidate arrangement schemes, and perform The scheme optimization screening can guarantee the preference of the candidate arrangement scheme.

Embodiment two

Based on the same inventive concept as the intelligent arrangement method based on BIM pipe heald optimization design in the foregoing embodiments, as shown in FIG. 4 , the present application provides an intelligent arrangement system based on BIM pipe heald optimization design. The system includes:

Principle construction module 11, described principle construction module 11 is used for obtaining BIM pipe comprehensive optimization design target, the adjustment principle when constructing BIM pipe comprehensive optimization design target based on described BIM pipe comprehensive optimization;

Constraint condition construction module 12, described constraint condition construction module 12 is used for obtaining electromechanical pipeline arrangement space characteristic, based on described electromechanical pipeline arrangement space characteristic, constructs pipeline arrangement space constraint condition;

A scheme judging module 13, the scheme judging module 13 is used to obtain the current pipeline layout scheme, and judge whether the current pipeline layout scheme satisfies the pipeline layout space constraints;

A scheme adjustment module 14, the scheme adjustment module 14 is used to adjust the current pipeline layout scheme based on the adjustment principle during the optimization of the BIM pipeline when it is not satisfied, and use the pipeline layout space constraints Judging the adjustment scheme to obtain a preset number of candidate arrangement schemes;

A scheme screening module 15, the scheme screening module 15 is configured to construct a cost objective function, and select an arrangement scheme with the lowest cost from the candidate arrangement schemes based on the cost objective function as the final output arrangement scheme.

Further, the system also includes:

A parameter determination module, the parameter determination module is used to analyze the composition of target parameters based on the BIM pipe comprehensive optimization design target, and determine the target description parameters;

A feature extraction module, the feature extraction module is used to perform feature extraction on the target description parameters corresponding to each BIM pipe comprehensive optimization design target, to obtain target parameter features;

Function construction module, described function construction module is used to construct each target fitness function according to the target value of each BIM pipe comprehensive optimization design target and the corresponding target parameter feature;

An adjustment principle acquisition module, the adjustment principle acquisition module is used to obtain the adjustment principles for the optimization of the BIM management system based on all target fitness functions.

Further, the system also includes:

A position reading module, the position reading module is used to read the arrangement position of electromechanical pipelines through the BIM model;

A position determination module, the position determination module is used to mark the connection space according to the arrangement position of the electromechanical pipeline, and determine the mark position;

A structural dimension extraction module, the structural dimension extraction module is used to extract the spatial structure of the marked position and the spatial dimension of the marked position through the BIM model based on the marked position;

A feature acquisition module, the feature acquisition module is used to extract structural space features and dimension space features according to the marked position space structure and the marked position space size, and obtain the electromechanical pipeline layout space features.

Further, the system also includes:

A structural constraint relationship acquisition module, the structural constraint relationship acquisition module is used to extract constraint features according to the structural space features, and obtain the constraint relationship between the structural space constraint features and the wiring scheme;

A dimensional constraint relationship acquisition module, the dimensional constraint relationship acquisition module is used to perform constraint feature extraction according to the dimensional space feature, and obtain the constraint relationship between the dimensional space constraint feature and the wiring scheme;

A weight analysis module, wherein the weight analysis module is used to obtain a historical wiring scheme information set, perform structural space constraint features and size space constraint features on the historical wiring scheme information set to perform constraint impact proportion analysis, and determine constraint feature influence weights;

A space constraint building module, the space constraint building module is used to construct the constraint relationship according to the constraint feature influence weight, the constraint relationship between the structural space constraint feature and the wiring scheme, and the dimension space constraint feature and the wiring scheme. Pipeline layout space constraints.

Further, the system also includes:

A scheme adjustment and combination module, wherein the scheme adjustment and combination module is used to adjust and combine the current pipeline arrangement scheme based on the adjustment principles during the BIM pipeline optimization, using each adjustment principle to obtain an adjustment scheme set;

A condition limiting module, the condition limiting module is used to judge the adjustment scheme set by using the pipeline arrangement space constraints, and obtain an arrangement scheme that satisfies the constraints;

An arrangement scheme judging module, the arrangement scheme judging module is used to judge whether the arrangement scheme satisfying the constraints meets the preset number;

A candidate scheme determination module, configured to use the arrangement scheme that satisfies the constraint condition as the candidate arrangement scheme when it is satisfied.

Further, the system also includes:

A scheme simulation adjustment module, the scheme simulation adjustment module is used to input the arrangement schemes satisfying the constraints into the BIM model if the quantity of the arrangement schemes satisfying the constraints is less than the preset number when not satisfied Scheme simulation, adjusting the parameters of the wiring scheme according to the scheme simulation screen and based on the space constraints of the pipeline layout, obtaining the simulation adjustment scheme and adding the layout scheme that satisfies the constraints;

A scheme acquisition module, the scheme acquisition module is used for if the arrangement scheme satisfying the constraint conditions after adding the simulation adjustment scheme still does not meet the preset number, then according to the current number of arrangement schemes satisfying the constraint conditions as the set Candidate arrangements are described.

Further, the system also includes:

A scheme optimization calculation module, the scheme optimization calculation module is used to use an optimization algorithm to perform the calculation according to the preset number if the number of the arrangement schemes satisfying the constraints is greater than the preset number Optimizing calculations are performed on arranging schemes that meet the constraint conditions, and an optimal number that satisfies a preset number is determined as the candidate arranging schemes.

Further, the system also includes:

The fitness evaluation module, the scheme fitness evaluation module is used to randomly select two schemes from the arrangement schemes satisfying the constraint conditions, and use the adjustment principle of BIM management optimization to perform fitness assessment to obtain the respective values of the two schemes. adaptability;

进行概率判别，其中，第一寻优方案适应度为w₁、当前比对方案适应度为w₂，e为自然对数、k为常数；A scheme iteration module, wherein the scheme iteration module is used to select a scheme with high fitness as the first optimization scheme, and then randomly select a scheme from the remaining schemes satisfying the constraint condition arrangement, and perform fitness evaluation with the first optimization scheme, Select the one with high fitness as the current optimal solution, and iterate continuously. If the number of times the first optimization solution is the current optimal solution exceeds the preset number, add the discriminant formula

Carry out probability discrimination, where the fitness of the first optimization scheme is w ₁ , the fitness of the current comparison scheme is w ₂ , e is the natural logarithm, and k is a constant;

Optimal scheme determination module, described optimal scheme determination module is used for if P is greater than the random number of [0,1) interval, then use current comparison scheme as current optimal strategy, if not, then use the first optimization scheme as the current best solution;

A candidate arrangement solution acquisition module, the candidate arrangement solution acquisition module is used for repeated iterations, until the optimization stop condition is reached, and a preset number of solutions are selected from all current optimal solutions as the candidate arrangement solutions.

Through the foregoing detailed description of an intelligent arrangement method based on BIM pipe heald optimization design, those skilled in the art can clearly know an intelligent arrangement method and system based on BIM pipe heald optimization design in this embodiment, As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related information, please refer to the description of the method part.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. An intelligent arrangement method based on BIM comprehensive optimization design is characterized by comprising the following steps:

acquiring a BIM comprehensive optimization design target, and constructing an adjustment principle during BIM comprehensive optimization based on the BIM comprehensive optimization design target;

acquiring the arrangement space characteristics of the electromechanical pipelines, and constructing pipeline arrangement space constraint conditions based on the arrangement space characteristics of the electromechanical pipelines;

obtaining a current pipeline arrangement scheme, and judging whether the current pipeline arrangement scheme meets the pipeline arrangement space constraint condition or not;

when the current pipeline arrangement scheme is not satisfied, adjusting the current pipeline arrangement scheme based on an adjusting principle during BIM comprehensive optimization, and judging the adjusting scheme by using the pipeline arrangement space constraint condition to obtain a preset number of candidate arrangement schemes;

and constructing a cost objective function, and screening the arrangement scheme with the lowest cost from the candidate arrangement schemes based on the cost objective function to serve as a final output arrangement scheme.

2. The method of claim 1, wherein constructing the adjustment rules for BIM ensemble optimization based on the BIM ensemble optimization design objective comprises:

performing target parameter composition analysis based on the BIM comprehensive optimization design target, and determining target description parameters;

respectively extracting the characteristics of the target description parameters corresponding to the BIM comprehensive optimization design targets to obtain target parameter characteristics;

constructing each target fitness function according to the target value of each BIM comprehensive optimization design target and the corresponding target parameter characteristics;

and obtaining an adjusting principle during the BIM comprehensive optimization based on all target fitness functions.

3. The method of claim 1, wherein obtaining the electromechanical pipeline routing spatial signature comprises:

reading the arrangement position of the electromechanical pipelines through a BIM model;

marking a connecting space according to the arrangement position of the electromechanical pipeline, and determining a marking position;

based on the marking position, extracting a spatial structure and a spatial dimension of the marking position through a BIM (building information modeling);

and extracting structure space characteristics and size space characteristics according to the marked position space structure and the marked position space size to obtain the electromechanical pipeline arrangement space characteristics.

4. The method of claim 3, wherein constructing a pipeline configuration spatial constraint based on the electromechanical pipeline configuration spatial signature comprises:

extracting constraint characteristics according to the structural space characteristics to obtain a constraint relation between the structural space constraint characteristics and a wiring scheme;

extracting constraint characteristics according to the dimension space characteristics to obtain a constraint relation between the dimension space constraint characteristics and a wiring scheme;

obtaining a historical wiring scheme information set, carrying out structural space constraint characteristic and size space constraint characteristic on the historical wiring scheme information set, carrying out constraint influence ratio analysis, and determining constraint characteristic influence weight;

and constructing the pipeline arrangement space constraint condition according to the constraint characteristic influence weight, the constraint relation between the structural space constraint characteristic and the wiring scheme, and the constraint relation between the size space constraint characteristic and the wiring scheme.

5. The method of claim 1, wherein adjusting the current pipeline arrangement scheme based on an adjustment principle during the BIM ensemble optimization, and determining the adjustment scheme by using the pipeline arrangement space constraint condition to obtain a predetermined number of candidate arrangement schemes comprises:

based on the adjustment principle during BIM comprehensive optimization, respectively adjusting and combining the current pipeline arrangement scheme by using each adjustment principle to obtain an adjustment scheme set;

judging the adjustment scheme set by using the pipeline arrangement space constraint condition to obtain an arrangement scheme meeting the constraint condition;

judging whether the arrangement scheme meeting the constraint condition meets a preset number or not;

when satisfied, the satisfying constraint condition assignment is taken as the candidate assignment.

6. The method of claim 5, wherein determining whether the constraint-satisfying configuration scheme satisfies a predetermined number comprises:

when the distribution schemes do not meet the requirements, if the number of the distribution schemes meeting the requirements is smaller than the preset number, inputting the distribution schemes meeting the requirements into a BIM (building information modeling) model for scheme simulation, and performing wiring scheme parameter adjustment according to scheme simulation pictures and on the basis of the pipeline distribution space constraints to obtain simulation adjustment schemes and add the simulation adjustment schemes into the distribution schemes meeting the requirements;

and if the configuration schemes meeting the constraint conditions and added with the simulation adjustment scheme still do not meet the preset number, taking the configuration schemes meeting the constraint conditions and in the current number as the candidate configuration schemes.

7. The method of claim 6, wherein the method further comprises:

if the number of the configuration schemes meeting the constraint conditions is larger than the preset number, optimizing the configuration schemes meeting the constraint conditions according to the preset number by using an optimizing algorithm, and determining the optimizing schemes meeting the preset number to serve as the candidate configuration schemes.

8. The method as claimed in claim 7, wherein said determining the optimal solution satisfying the predetermined number by using the optimal algorithm to perform optimal calculation on the constraint enforcement satisfying the predetermined number comprises:

randomly selecting two schemes from the arrangement schemes meeting the constraint conditions, and evaluating the fitness by utilizing an adjustment principle during BIM comprehensive optimization to obtain the fitness of each of the two schemes;

selecting a scheme with high fitness as a first optimization searching scheme, randomly selecting one scheme from the rest arrangement schemes meeting the constraint conditions, evaluating the fitness with the first optimization searching scheme, selecting the scheme with high fitness as the current optimal scheme, continuously iterating, and adding a discrimination formula if the current optimal times of the first optimization searching scheme exceeds the preset number

Carrying out probability discrimination, wherein the fitness of the first optimizing scheme is w ₁ The fitness of the current comparison scheme is w ₂ E is a natural logarithm, k is a constant;

if P is larger than the random number in the interval of [0, 1), taking the current comparison scheme as the current optimal strategy, and if not, taking the first optimization scheme as the current optimal scheme;

and repeating iteration until the optimization stopping condition is reached, and screening a preset number of schemes from all current optimal schemes as the candidate arrangement schemes.

9. An intelligent arrangement system based on BIM comprehensive optimization design, which is characterized by comprising:

the principle building module is used for obtaining a BIM comprehensive optimization design target and building an adjusting principle during BIM comprehensive optimization based on the BIM comprehensive optimization design target;

the constraint condition construction module is used for obtaining the arrangement space characteristics of the electromechanical pipelines and constructing pipeline arrangement space constraint conditions based on the arrangement space characteristics of the electromechanical pipelines;

the scheme judging module is used for obtaining a current pipeline arrangement scheme and judging whether the current pipeline arrangement scheme meets the pipeline arrangement space constraint condition;

the scheme adjusting module is used for adjusting the current pipeline arrangement scheme based on an adjusting principle during BIM comprehensive optimization when the current pipeline arrangement scheme is not met, and judging the adjustment scheme by using the pipeline arrangement space constraint condition to obtain a preset number of candidate arrangement schemes;

and the scheme screening module is used for constructing a cost objective function and screening the arrangement scheme with the lowest cost from the candidate arrangement schemes as a final output arrangement scheme based on the cost objective function.

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