System and method for optimizing layout of prefabricated component production plant facilities based on smart construction

Abstract

The application relates to the technical field of intelligent construction, and discloses a prefabricated component production workshop facility layout optimization system and method based on intelligent construction, which comprises the following steps: collecting workshop basic data, production demand, bridge horizontal movement speed and trolley horizontal movement speed, establishing a workshop basic model, facility layout object information and a layout constraint set; establishing a logistics relationship according to the production demand, dividing logistics edges into a bridge crane hoisting set and other handling sets; under the condition that the bridge movement shaft and the trolley movement shaft can run simultaneously, determining horizontal handling time and synchronous utilization based on the horizontal displacement of the hoisting interface point in the directions of the two movement shafts, generating an accessible area layer and a synchronous matching ridge line; and establishing a comprehensive evaluation function by using the horizontal handling time, the synchronous utilization and the layout constraint set, optimizing a candidate layout, and outputting a recommended layout scheme after checking relevant records in a CAD / BIM model.

Description

Technical Field

[0001] This invention belongs to the field of intelligent construction technology, specifically relating to a system and method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction. Background Technology

[0002] The layout of a precast component production workshop typically needs to address constraints such as process flow, equipment shape, clear aisle width, hoisting range, floor load-bearing capacity, and safety clearances. After creating a CAD / BIM model, designers will develop a facility layout plan based on product type, production plan, process route, and equipment list. They will then determine the feasibility of the plan through clash checks, aisle checks, and hoisting coverage checks.

[0003] Existing digital layout tools often treat the right-angle distance, Euclidean distance, or aisle path between equipment centers, process interfaces, or hoisting interfaces as the cost of handling materials when processing workshop logistics. This approach facilitates unified modeling and is suitable for scenarios that rely on aisle paths, such as forklifts, AGVs, or manual handling. However, in workshops using bridge cranes to transport large prefabricated components, the operating speeds of the bridge crane's motion axis and the trolley's motion axis differ, and even when simultaneous operation is permitted, the actual horizontal lifting operation depends on the hoisting direction. If only a single distance value is used for evaluation, hoisting tasks with different directions but the same distance may incur the same cost, making it difficult to reflect the operational rhythm of the bridge cranes when ranking candidate layouts.

[0004] During the engineering review phase, designers also need to confirm whether the hoisting interface is located within the coverage boundary of the bridge crane, and whether the evaluation record is consistent with the facility coordinates, passage layout, and hoisting interface in the CAD / BIM model. If the layout software does not link the parallel operation rules of the bridge crane, the location of the hoisting interface, the frequency of logistics, and constraint verification, the recommended scheme may require a lot of manual review and adjustment, affecting the review efficiency and stability of the precast component production workshop layout design. Summary of the Invention

[0005] The present invention aims to provide a system and method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction, which solves the technical problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution.

[0007] A method for optimizing the layout of facilities in a precast component production workshop based on intelligent construction is applied to the CAD / BIM model of a precast component production workshop that includes a bridge crane, including: Collect basic workshop data, production requirements, horizontal running speed of cable trays, and horizontal running speed of trolleys; Establish a basic workshop model and facility layout object information, and establish a set of layout constraints based on the basic workshop model and facility layout object information; Based on the production requirements, establish logistics relationships and divide the logistics edge into bridge crane hoisting sets and other handling sets; Under the condition that the bridge frame movement axis and the trolley movement axis are allowed to run simultaneously, for the lifting assembly of the bridge crane, the time required for the bridge frame to complete the displacement alone and the time required for the trolley to complete the displacement alone are determined according to the horizontal displacement between the lifting interface points along the bridge frame movement axis and the trolley movement axis, respectively. The longer of these two times is used to determine the horizontal handling time, and the synchronization utilization is determined according to the closeness between the time required for the bridge frame to complete the displacement alone and the time required for the trolley to complete the displacement alone. An isochronous rectangular structural field representing the reachable area is generated based on a preset horizontal transport time, and a synchronous matching ridge is generated based on the relationship that the time required for the bridge to complete displacement alone is equal to the time required for the trolley to complete displacement alone. A comprehensive evaluation function is established using the horizontal transport time, the synchronization utilization, and the set of layout constraints to optimize the candidate layout; The consistency of the isochronous rectangular structural field, the synchronous matching ridge line, the horizontal transport time, and the synchronous utilization is verified in the CAD / BIM model, and a recommended layout scheme is output.

[0008] Compared with the prior art, the present invention has the following substantial features and significant progress: This invention introduces the horizontal running speed of the cable tray, the horizontal running speed of the trolley, the hoisting interface points, and the set of layout constraints into the workshop CAD / BIM model. It evaluates the horizontal hoisting of the cable tray based on the parallel travel time of the cable tray and trolley axes, and combines synchronous utilization, reachable area layers, synchronous matching ridge lines, and a comprehensive evaluation function to complete the optimization and verification of candidate layouts. Compared to methods that only measure the handling cost based on right-angle distance, Euclidean distance, or the shortest path, this invention can more accurately distinguish hoisting relationships with the same distance but different directions, improve the matching degree between hoisting evaluation and workshop equipment layout, reduce the impact of synchronous mismatch on scheme ranking, and provide verifiable CAD / BIM basis for recommended layout schemes without changing the cable tray, production equipment, and workshop buildings. Attached Figure Description

[0009] Figure 1 This is a two-dimensional schematic diagram of the system and mechanism for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction, as described in this invention. Detailed Implementation

[0010] The following description is provided in conjunction with the accompanying drawings. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the invention; those skilled in the art can make equivalent substitutions or combinations for the specific implementations.

[0011] This implementation method applies to the CAD / BIM model of a precast component production workshop that includes a bridge crane. The precast component production workshop may include a rebar processing area, mold table area, casting area, curing area, demolding area, stacking area, repair area, loading area, and supporting passageways. Large precast wall panels, composite slabs, or beam-column components are typically horizontally hoisted by a bridge crane during internal workshop transport. The bridge crane's motion axis and trolley motion axis are orthogonal to each other in the horizontal plane. Given that the bridge crane's motion axis and trolley motion axis are allowed to operate simultaneously, the completion time of a single horizontal hoisting task is determined by the motion axis with the longer travel time.

[0012] like Figure 1 As shown, the facility layout optimization system 10 includes a processor 100, a memory 110, a data acquisition module 120, a basic model building module 130, a facility object library building module 140, a constraint modeling module 150, a logistics relationship modeling module 160, a dual-axis synchronous structural field building module 170, a comprehensive evaluation module 180, a layout optimization module 190, a CAD / BIM geometric verification module 200, and a results output module 210. The processor 100 is used to perform computational tasks such as data reading, coordinate calculation, constraint judgment, target evaluation, and candidate layout updating. The memory 110 is used to store the workshop basic data 300, production requirements 310, bridge horizontal running speed 320, trolley horizontal running speed 330, workshop basic model 400, facility layout object information 410, layout constraint set 420, logistics relationship 430, bridge crane hoisting set 440, other handling set 450, horizontal handling time 460, synchronization utilization 470, isochronous rectangular structure field 480, synchronization matching ridge line 490, comprehensive evaluation function 500, candidate layout 510, and recommended layout scheme 520.

[0013] It should be noted that the horizontal running speed of the cable tray 320 and the horizontal running speed of the trolley 330 are existing equipment data, and the hoisting interface point set 412, workshop basic model 400 and candidate layout 510 are data objects in CAD / BIM model 530.

[0014] The data acquisition module 120 is used to collect basic workshop data 300, production requirements 310, horizontal operating speed of the cable tray 320, and horizontal operating speed of the trolley 330. Basic workshop data 300 includes building boundaries, column grid, doorway locations, floor load, cable tray crane coverage boundaries 540, equipment specifications, passageway requirements, and safety clearance requirements. Production requirements 310 include product families, production plans, process routes, and shifts. All of the above data can be obtained from architectural construction drawings, measured drawings, equipment ledgers, MES / ERP reports, production planning documents, or manual records.

[0015] When data acquisition module 120 acquires the horizontal travel speed of the bridge crane at 320, it directly sources the speed setting from the crane nameplate, equipment manual, or PLC. The bridge crane horizontal travel speed of 320 represents the speed at which the bridge crane travels horizontally along the direction corresponding to the bridge crane's motion axis 550. When data acquisition module 120 acquires the horizontal travel speed of the trolley at 330, it directly sources the speed setting from the crane nameplate, equipment manual, or PLC. The trolley horizontal travel speed of 330 represents the speed at which the trolley travels horizontally along the direction corresponding to the trolley's motion axis 560.

[0016] The data acquisition module 120 also acquires the horizontal position sequence of the hook or trolley projection points. This sequence can be obtained from existing encoders, positioning systems, or operation records of the cable tray and trolley; in newly built workshops not yet operational, it can be replaced by the preset lifting and lowering point coordinates in the CAD / BIM model 530. When verifying the lifting interface points based on the horizontal position sequence of the hook or trolley projection points, the data acquisition module 120 first converts the horizontal position sequence of the hook or trolley projection points to the unified coordinate system of the CAD / BIM model 530, and then extracts the corresponding position points according to the lifting and lowering stages in the process route; subsequently, it calculates the planar distance between the position points and the corresponding lifting interface points in the lifting interface point set 412. When the planar distance is not greater than a preset position deviation threshold, the corresponding lifting interface point is determined to have passed the verification; when the planar distance is greater than the preset position deviation threshold, the corresponding lifting interface point is determined to have failed the verification, and the failed lifting interface points are returned to the facility object library construction module 140 for position correction. The preset position deviation threshold is determined by the modeling accuracy of the CAD / BIM model 530, the accuracy of the hoisting interface annotation, and the allowable coordinate deviation of the project, and is kept consistent within the same project.

[0017] The data acquisition module 120 performs routine integrity checks, unit conversions, and coordinate system consistency checks on data from different sources. For example, the external dimensions given in the equipment specification may be in millimeters, the horizontal running speed of the cable tray 320 and the horizontal running speed of the trolley 330 may be in meters per second, and the coordinates in the CAD / BIM model 530 may be in millimeters or meters. After converting the above units to a unified unit, the data acquisition module 120 outputs the data to the basic model building module 130, the facility object library building module 140, and the logistics relationship modeling module 160.

[0018] In the data acquisition module 120, workshop basic data 300 and production requirements 310 are used to determine the workshop basic model 400, facility layout object information 410, logistics relationships 430, and layout constraint set 420; the horizontal running speed of the cable tray 320, the horizontal running speed of the trolley 330, and the hoisting interface point set 412 are used in the dual-axis synchronous structure field construction module 170. If the horizontal running speed of the cable tray 320 or the horizontal running speed of the trolley 330 is missing, the system will not infer it based on experience values, but will prompt for the supplementation of equipment ledgers, crane nameplates, equipment manuals, or PLC speed settings to avoid bringing uncertain parameters into the horizontal handling time 460.

[0019] The basic model building module 130 is used to establish the workshop basic model 400. The workshop basic model 400 is CAD / BIM data representing building boundaries, column grids, doorway locations, fixed obstacles, passageways, the overhead crane coverage boundary 540, and annotation information in a unified coordinate system. The basic model building module 130 establishes building boundary layers, fixed obstacle layers, passageway layers, facility layers, and annotation layers in the unified coordinate system, and determines the usable areas. The usable areas are the areas in the CAD / BIM model 530 where facilities are permitted to be arranged, excluding columns, walls, fixed facilities, inaccessible trenches, fire-prohibited areas, and areas outside the overhead crane coverage boundary 540.

[0020] When establishing the bridge crane coverage boundary 540 in the basic model construction module 130, the crane track range, hook reachable range, and factory floor plan boundary are used as the basis. Figure 1 In the CAD / BIM model 530, dashed boundaries are used to represent the lifting interface point set 412, which must be located within the bridge crane coverage boundary 540. For areas outside the bridge crane coverage boundary 540, even if the mathematical expression of the isochronous rectangular structural field 480 shows that it is reachable within the preset horizontal handling time, it shall not be considered as being able to perform horizontal lifting by the bridge crane.

[0021] The facility object library construction module 140 is used to establish facility layout object information 410. The facility layout object information 410 includes at least a facility component library 411, a hoisting interface point set 412, and a process interface point set 413. The facility component library 411 is determined by equipment dimensions, maintenance distance, inlet, outlet, operating surface, permissible orientation, foundation requirements, and the location of prefabricated component hoisting or lowering interfaces. Each facility component can be represented by an enclosing rectangle, polygon, or three-dimensional solid.

[0022] The hoisting interface point set 412 is used to express the lifting position, lowering position, or component handover position where a bridge crane needs to perform horizontal hoisting. The process interface point set 413 is used to express the inlet, outlet, or process connection point of non-hoisting processes between facilities. The hoisting interface point set 412 and the process interface point set 413 can belong to the same facility component or correspond to different facility components, but their technical meanings are different: the hoisting interface point set 412 is used to calculate the horizontal handling time 460 and synchronous utilization 470 of the bridge crane hoisting set 440, while the process interface point set 413 is used to evaluate the distance of conventional process routes, adjacency relationships, and other handling sets 450.

[0023] The data output by the basic model building module 130 and the facility object library building module 140 are used jointly by the constraint modeling module 150. The constraint modeling module 150 establishes a layout constraint set 420 based on the workshop basic model 400 and the facility layout object information 410.

[0024] The constraint modeling module 150 is used to establish a layout constraint set 420 based on the workshop basic model 400 and facility layout object information 410. The layout constraint set 420 includes boundary, mutual exclusion, access, safety, and coverage conditions. Boundary conditions are used to ensure that facility components in the facility component library 411 are located within the available area; mutual exclusion conditions are used to ensure that different facility components do not overlap; access conditions are used to ensure minimum passage width, doorway clearance, and vehicle passage space; safety conditions are used to ensure the distance between equipment and columns / walls, fire evacuation space, maintenance space, and floor load zoning; and coverage conditions are used to ensure that the hoisting interface point set 412 is located within the bridge crane coverage boundary 540.

[0025] In one implementation, the constraint modeling module 150 divides the layout constraint set 420 into hard constraints and soft constraints. Hard constraints are used to exclude candidate layouts 510 that are not feasible, such as facilities extending beyond the available area, overlapping facility components, or the hoisting interface point set 412 located outside the bridge crane coverage boundary 540. Soft constraints are used to form penalty terms, such as excessively large adjacency distances, maintenance space close to the lower limit, or long passageway detours. The soft constraint penalty terms do not change the calculation of the horizontal handling time 460 of the bridge crane hoisting set 440, but instead participate in the candidate layout 510 ranking as part of the comprehensive evaluation function 500.

[0026] The constraint modeling module 150 can employ existing CAD / BIM geometric processing methods such as polygon intersection, minimum distance calculation, point-within-area judgment, envelope expansion, and layer collision detection. These methods are only used to implement the boundary, mutual exclusion, passage, safety, and coverage conditions described in the claims, without introducing new layout optimization invention points. After outputting the layout constraint set 420, the constraint modeling module 150 simultaneously provides the layout constraint set 420 to both the comprehensive evaluation module 180 and the layout optimization module 190.

[0027] The logistics relationship modeling module 160 is used to establish logistics relationships 430 based on production requirements 310, and to divide the logistics edges into a bridge crane hoisting set 440 and other handling sets 450. The logistics relationships 430 are established based on product families, planned output, process routes, and handling batches, and may specifically include a logistics frequency matrix and an adjacency matrix. The logistics frequency in the logistics frequency matrix represents the number of times materials are handled between facilities or processes within a preset production cycle, and the adjacency matrix represents the adjacent demand levels between facilities or processes.

[0028] The logistics relationship modeling module 160 categorizes logistics edges where horizontal lifting is performed by bridge cranes into the bridge crane lifting set 440. Logistics edges where horizontal lifting is performed by bridge cranes typically correspond to the lifting and lowering tasks of large precast components between facilities such as mold tables, curing, demolding, repair, stacking, or loading. The logistics relationship modeling module 160 categorizes logistics edges where horizontal lifting is not performed by bridge cranes into the other handling set 450. Logistics edges where horizontal lifting is not performed by bridge cranes can be completed by forklifts, AGVs, manual handling, or aisle-based logistics; their evaluation can still use right-angle distance, Euclidean distance, or shortest path aisle.

[0029] The division of the bridge crane lifting assembly 440 into other handling assemblies 450 does not change the origin of the logistics relationship 430 itself, but rather allocates the logistics edges to different evaluation paths according to the actual handling methods. The bridge crane lifting assembly 440 enters the dual-axis synchronous structure field construction module 170, while other handling assemblies 450 enter the other logistics distance cost in the comprehensive evaluation module 180. This retains the conventional logistics evaluation in the existing facility layout optimization, while also enabling the bridge crane lifting assembly 440 to be evaluated according to the dual-axis parallel characteristics of the bridge frame movement axis 550 and the trolley movement axis 560.

[0030] The dual-axis synchronous structure field construction module 170 is a module directly related to the evaluation of bridge crane hoisting in this embodiment. For example... Figure 1As shown, the dual-axis synchronous structure field construction module 170 receives the bridge crane hoisting set 440, the bridge horizontal running speed 320, the trolley horizontal running speed 330, and the hoisting interface point set 412, and outputs the horizontal handling time 460, the synchronization utilization 470, the isochronous rectangular structure field 480, and the synchronous matching ridge line 490.

[0031] For any material side in the lifting assembly 440 of the bridge crane, let a horizontal lifting operation start from the horizontal coordinate of the starting point. horizontal coordinates of the destination .in, and These are the coordinates along the direction corresponding to the cable tray's motion axis 550. and This refers to the coordinates along the direction corresponding to the trolley's motion axis 560. When the global coordinate axes of the CAD / BIM model 530 are inconsistent with the bridge frame motion axis 550 or the trolley's motion axis 560, a conventional coordinate transformation can be performed first to convert the coordinates in the hoisting interface point set 412 to a local coordinate system based on the bridge frame motion axis 550 and the trolley's motion axis 560.

[0032] in, It represents the longitudinal absolute displacement, that is, the absolute displacement between the starting horizontal coordinate and the ending horizontal coordinate along the direction corresponding to the bridge frame movement axis 550. This represents the coordinate of the bridge frame's motion axis 550 in the horizontal coordinate system at the starting point. This represents the coordinate of the bridge frame's motion axis 550 in the horizontal coordinate system of the endpoint.

[0033] in, It represents the lateral absolute displacement, that is, the absolute displacement between the starting horizontal coordinate and the ending horizontal coordinate along the direction corresponding to the trolley's motion axis 560. This represents the coordinates of the 560-degree axis of motion of the trolley in the horizontal coordinate system of the starting point. This represents the 560-degree direction coordinate of the trolley's motion axis in the horizontal coordinate system of the endpoint.

[0034] After obtaining the longitudinal and lateral absolute displacements, the dual-axis synchronous structural field construction module 170 determines the time required for the cable tray to complete its displacement independently and the time required for the trolley to complete its displacement independently. The time required for the cable tray to complete its displacement independently represents the time required only for the cable tray's motion axis 550 to complete its longitudinal absolute displacement, while the time required for the trolley to complete its displacement independently represents the time required only for the trolley's motion axis 560 to complete its lateral absolute displacement.

[0035] in, This indicates the time required for the cable tray to complete its displacement independently; Indicates longitudinal absolute displacement; This indicates that the horizontal travel speed of the cable tray is 320. This horizontal travel speed of 320 is derived from equipment records, crane nameplates, equipment manuals, or PLC speed settings.

[0036] in, This indicates the time required for the trolley to complete the displacement independently; Indicates lateral absolute displacement; This indicates that the trolley's horizontal running speed is 330. This horizontal running speed of 330 is derived from equipment records, crane nameplates, equipment manuals, or PLC speed settings.

[0037] Under the condition that the cable tray motion axis 550 and the trolley motion axis 560 are allowed to operate simultaneously, the horizontal movement of the cable tray motion axis 550 and the horizontal movement of the trolley motion axis 560 are executed in parallel after the start of the same horizontal lifting task. This horizontal lifting task is only completed after the longer of the time required for the cable tray to complete its displacement alone and the time required for the trolley to complete its displacement alone has elapsed. Therefore, the horizontal handling time 460 is not the sum of the time corresponding to the longitudinal absolute displacement and the time corresponding to the lateral absolute displacement.

[0038] in, This indicates a horizontal transport time of 460. This indicates the time required for the cable tray to complete its displacement independently; This indicates the time required for the trolley to complete the displacement independently; This indicates that the horizontal operating speed of the cable tray is 320. This indicates that the car's horizontal running speed is 330. This indicates that the logistics side belongs to the bridge crane hoisting collection 440.

[0039] The synchronization utilization rate of 470 indicates the degree of proximity between the time required for the cable tray to complete the displacement independently and the time required for the trolley to complete the displacement independently. The closer the synchronization utilization rate of 470 is to 1, the closer the cable tray motion axis 550 and the trolley motion axis 560 are to completing the horizontal displacement simultaneously; the closer the synchronization utilization rate of 470 is to 0, the closer the horizontal hoisting task is to one motion axis, the more likely the other motion axis will complete the task ahead of time and wait.

[0040] in, This indicates a synchronization utilization rate of 470. This represents the shorter of the time required for the cable tray to complete its displacement alone and the time required for the trolley to complete its displacement alone. This represents the longer of the two times. When the longer time is 0, it means that the starting horizontal coordinate and the ending horizontal coordinate coincide, and the dual-axis synchronous structure field construction module 170 sets the synchronization utilization 470 to 1.

[0041] The dual-axis synchronous structural field construction module 170 also generates an isochronous rectangular structural field 480 representing the reachable region based on a preset horizontal transport time. Centered on any hoisting interface point in the hoisting interface point set 412, a preset horizontal transport time is given. The distance that can be covered in the direction corresponding to the bridge crane's movement axis 550 is determined by the bridge crane's horizontal running speed 320 and the preset horizontal transport time. The distance that can be covered in the direction corresponding to the trolley's movement axis 560 is determined by the trolley's horizontal running speed 330 and the preset horizontal transport time. Multiple different preset horizontal transport times are determined according to the horizontal transport time 460 of each material edge in the bridge crane's hoisting set 440: first, the minimum and maximum values ​​of the horizontal transport time 460 in the bridge crane's hoisting set 440 are calculated; then, the minimum and maximum values ​​are selected at equal intervals according to the preset layer quantity. When the minimum value equals the maximum value, at least the minimum value is selected as the preset horizontal transport time. The preset layer quantity is a positive integer input by the project and is used to control the number of axis-aligned rectangular areas in the isochronous rectangular structure field 480.

[0042] in, Indicates the first A preset horizontal transport time; This represents the minimum horizontal handling time of 460 in the lifting assembly 440 by the bridge crane; This represents the maximum horizontal handling time of 460 in the lifting assembly 440 by the bridge crane; Indicates the preset number of layers; From 0 to Integer. When or At that time, the dual-axis synchronous structure field construction module 170 can be used directly. The preset horizontal transport time is used as the baseline. All preset horizontal transport times are not less than 0. After the isochronous rectangular structure field 480 is formed, it must be intercepted by the bridge crane coverage boundary 540. The part that exceeds the bridge crane coverage boundary 540 shall not be considered as an accessible area.

[0043] in, This represents an axis-aligned rectangular region within the isochronous rectangular structure field 480; Indicates the hoisting interface point as the center; Indicates the position to be evaluated; This indicates that the horizontal operating speed of the cable tray is 320. This indicates that the car's horizontal running speed is 330. This represents the preset horizontal transport time. Multiple axis-aligned rectangular regions corresponding to different preset horizontal transport times are superimposed to form an isochronous rectangular structural field 480.

[0044] The synchronization matching ridge 490 is determined by the relationship that the time required for the cable tray to complete displacement alone is equal to the time required for the trolley to complete displacement alone. When a target position is located on the synchronization matching ridge 490, the cable tray motion axis 550 and the trolley motion axis 560 theoretically complete horizontal displacement simultaneously, and there is no synchronization mismatch where one motion axis completes its displacement ahead of the other.

[0045] in, and Let these be the coordinates of the location to be evaluated in the local coordinate system; and Let be the coordinates of the hoisting interface point, which serves as the center, in the local coordinate system; This indicates that the horizontal operating speed of the cable tray is 320. This indicates that the car's horizontal running speed is 330.

[0046] The above formula represents the directional relationship between the synchronous matching ridge line 490 and the bridge frame motion axis 550 and the trolley motion axis 560. The slope of the synchronous matching ridge line 490 is determined by the ratio of the trolley horizontal running speed 330 to the bridge frame horizontal running speed 320. Different hoisting interface points correspond to synchronous matching ridge lines 490 that are translated in the same shape.

[0047] like Figure 1 As shown in the CAD / BIM model 530, the bridge crane coverage boundary 540, the bridge frame movement axis 550, the trolley movement axis 560, the hoisting interface point set 412, the isochronous rectangular structural field 480, and the synchronous matching ridge line 490 are located within the same verification area. The isochronous rectangular structural field 480 forms multiple unidirectional rectangular dashed lines centered on one of the hoisting interface points in the hoisting interface point set 412, representing the reachable areas under different preset horizontal handling times; the synchronous matching ridge line 490 extends diagonally from the same hoisting interface point, representing the directional position of the bridge frame movement axis 550 and the trolley movement axis 560 to achieve synchronous completion conditions.

[0048] The comprehensive evaluation module 180 is used to establish a comprehensive evaluation function 500 using horizontal handling time 460, synchronization utilization 470, and layout constraint set 420. The comprehensive evaluation function 500 includes hoisting time cost, synchronization mismatch cost, other logistics distance cost, adjacency penalty, space penalty, and safety penalty. Hoisting time cost is determined by the logistics frequency of the bridge crane hoisting set 440 and the horizontal handling time 460; synchronization mismatch cost is determined by the logistics frequency of the bridge crane hoisting set 440 and the synchronization utilization 470; other logistics distance cost is determined by the logistics frequency of other handling sets 450 and the preset non-bridge crane handling distance evaluation results.

[0049] in, Indicates the time cost of hoisting; This indicates that the bridge crane is lifting assembly 440; Indicates the frequency of logistics; The horizontal handling time is 460. The hoisting time cost is used to give higher evaluation weight to horizontal hoisting tasks of high-frequency bridge cranes in candidate layout 510.

[0050] in, Indicates the cost of synchronization mismatch; This indicates a synchronization utilization rate of 470. This indicates the degree of mismatch when the bridge motion axis 550 and the trolley motion axis 560 do not simultaneously complete horizontal displacement. The synchronization mismatch cost is used to prioritize the candidate layout 510 to be closer to the directional position indicated by the synchronization matching ridge 490.

[0051] in, Indicates other logistics distance costs; This indicates that the logistics edge belongs to other handling collections 450; This indicates the preset evaluation result for the handling distance of non-bridge cranes. The preset evaluation result for the handling distance of non-bridge cranes can be expressed as right-angle distance, Euclidean distance, or shortest path, which is a method for evaluating the existing facility layout.

[0052] To enable the direct addition of different components in the comprehensive evaluation function 500, the comprehensive evaluation module 180 first performs dimensionless normalization on the hoisting time cost, synchronization mismatch cost, other logistics distance cost, adjacency penalty, spatial penalty, and safety penalty. The baseline values ​​for hoisting time cost, synchronization mismatch cost, other logistics distance cost, adjacency penalty, spatial penalty, and safety penalty are determined by the maximum value of the corresponding component in the initial candidate layout set. If the maximum value of a component is 0, then the baseline value for that component is taken as the unit baseline value under that component's dimension. All normalized components are dimensionless.

[0053] in, This represents the normalized hoisting time cost; Indicates the time cost of hoisting; This represents the baseline value for hoisting time cost. The baseline value for hoisting time cost and the hoisting time cost have the same dimensions.

[0054] in, This represents the normalized synchronization mismatch cost; Indicates the cost of synchronization mismatch; This represents the baseline value for synchronization mismatch costs. The baseline value for synchronization mismatch costs and the synchronization mismatch costs have the same dimensions.

[0055] in, This represents the normalized cost of other logistics distances; Indicates other logistics distance costs; This represents the benchmark value for other logistics distance costs. The benchmark value for other logistics distance costs has the same dimensions as other logistics distance costs.

[0056] in, This represents the normalized adjacency penalty; Indicates adjacency penalty; This represents the baseline value for the adjacency penalty. The baseline value for the adjacency penalty has the same dimensions as the adjacency penalty.

[0057] in, Indicates the normalization space penalty; Indicates space penalty; This represents the spatial penalty reference value. The spatial penalty reference value and the spatial penalty have the same dimensions.

[0058] in, Indicates normalized security penalties; This indicates a safety penalty; This represents the baseline value for safety penalties. The baseline value for safety penalties has the same dimensions as the safety penalty itself.

[0059] in, This represents the function value of the comprehensive evaluation function 500; This represents the normalized hoisting time cost; This represents the normalized synchronization mismatch cost; This represents the normalized cost of other logistics distances; This represents the normalized adjacency penalty; Indicates the normalization space penalty; Indicates normalized security penalties; , , , , and This represents a dimensionless weight. The aforementioned dimensionless weights can be given by project experience, design specification weights, expert scores, or multi-objective normalization methods, and remain unchanged in the same round of candidate layout 510 evaluation.

[0060] The comprehensive evaluation module 180 serves to retain the conventional evaluation paths of other handling sets 450, while allowing the bridge crane lifting set 440 to participate in the candidate layout 510 evaluation based on the actual dual-axis parallel time and the degree of deviation relative to the synchronous matching ridge line 490. Thus, when two candidate layouts 510 are the same in terms of rectangular or Euclidean distance but different in direction, the comprehensive evaluation function 500 can still distinguish their bridge crane horizontal lifting efficiency through horizontal handling time 460 and synchronous utilization 470.

[0061] The layout optimization module 190 is used to call the comprehensive evaluation function 500 to optimize the candidate layout 510. The candidate layout 510 can be jointly expressed by the coordinates of the facility components in the facility component library 411, the facility orientation, the position of the process interface point set 413, and the position of the hoisting interface point set 412. The layout optimization module 190 can first generate multiple initial candidate layouts 510 based on the logistics relationship 430, facility area, fixed objects, available area, allowed orientation, and layout constraint set 420.

[0062] In one implementation, the layout optimization module 190 employs general search algorithms such as genetic algorithms, simulated annealing, particle swarm optimization, tabu search, or neighborhood swapping. The general search algorithm itself is not a distinguishing feature of this implementation; the key to the layout optimization module 190 lies in its invocation of a comprehensive evaluation function 500, which includes horizontal transport time 460 and synchronization utilization 470, each time it evaluates a candidate layout 510, while simultaneously checking the layout constraint set 420.

[0063] During the iteration process, the layout optimization module 190 adjusts the facility coordinates, facility orientation, or facility sequence of the candidate layout 510. After each adjustment, the constraint modeling module 150 or the layout optimization module 190 first determines whether the candidate layout 510 satisfies the boundary, mutual exclusion, accessibility, safety, and coverage conditions based on the layout constraint set 420. For candidate layouts 510 that satisfy hard constraints, the comprehensive evaluation module 180 recalculates the comprehensive evaluation function 500. For candidate layouts 510 that violate soft constraints, the comprehensive evaluation function 500 reflects their adverse effects through adjacency penalties, spatial penalties, or safety penalties.

[0064] The layout optimization module 190 outputs several candidate layouts 510 with lower function values ​​of the comprehensive evaluation function 500 and passes them to the CAD / BIM geometry verification module 200. The layout optimization module 190 does not actively force all facilities to be arranged along the synchronous matching ridge line 490, but instead uses the comprehensive evaluation function 500 to make the high-frequency bridge crane hoisting assembly 440 tend towards lower horizontal handling time 460 and higher synchronous utilization 470 while meeting process, space and safety constraints.

[0065] The CAD / BIM geometry verification module 200 is used to verify the consistency of the isochronous rectangular structural field 480, synchronous matching ridge line 490, horizontal handling time 460, and synchronous utilization 470 in the CAD / BIM model 530, and to check that the hoisting interface point set 412 is within the bridge crane coverage boundary 540. Figure 1 As shown, the CAD / BIM geometry verification module 200 and the CAD / BIM model 530 are connected bidirectionally, representing the verification relationship between layer records and evaluation records.

[0066] The CAD / BIM geometry verification module 200 first performs general geometry checks on the candidate layout 510, including clash checks, boundary checks, passageway clear width checks, equipment maintenance space checks, fire evacuation checks, floor load checks, and hoisting interface coverage checks. After the general geometry checks are passed, the CAD / BIM geometry verification module 200 overlays isochronous rectangular structural fields 480 and synchronous matching ridge lines 490 on the hoisting interface points in the preset verification objects, and redetermines the horizontal handling time 460 and synchronous utilization 470.

[0067] The preset review objects can include logistics edges with high logistics frequency in the bridge crane lifting set 440, logistics edges with high lifting time cost in the comprehensive evaluation function 500, logistics edges with high synchronization mismatch cost, and manually specified lifting interface points that need to be reviewed. When determining the preset review objects, the CAD / BIM geometry verification module 200 first sorts the logistics edges in the bridge crane lifting set 440 in descending order according to logistics frequency, lifting time cost, or synchronization mismatch cost, and then selects the logistics edges with the highest preset review quantity from the sorting results; when a logistics edge enters multiple sorting results at the same time, it is only retained once. The preset review quantity is a positive integer input by the project and is not greater than the number of logistics edges in the bridge crane lifting set 440. Manually specified lifting interface points that need to be reviewed can be used as supplementary review objects, but do not replace the preset review objects selected by the above sorting. The preset review objects are only used to limit the review scope and do not change the calculation rules of horizontal handling time 460, synchronization utilization 470, isochronous rectangular structure field 480, and synchronization matching ridge line 490.

[0068] The CAD / BIM geometry verification module 200 checks each record in the CAD / BIM model 530 against the records in the comprehensive evaluation function 500. If the redefined horizontal transport time 460 in the CAD / BIM model 530 is inconsistent with the horizontal transport time 460 in the comprehensive evaluation function 500, it indicates that there are recorded discrepancies in the facility coordinates, hoisting interface point set 412, cable tray horizontal running speed 320, or trolley horizontal running speed 330 of the candidate layout 510, and it needs to be returned to the data acquisition module 120, basic model construction module 130, or facility object library construction module 140 for verification. If the redefined synchronization utilization 470 in the CAD / BIM model 530 is inconsistent with the synchronization utilization 470 in the comprehensive evaluation function 500, it indicates that there are recorded discrepancies in the cable tray motion axis 550, trolley motion axis 560, or coordinate transformation, and it needs to be reconfirmed in the local coordinate system.

[0069] The output module 210 is used to output a recommended layout scheme 520. The recommended layout scheme 520 includes facility coordinates, facility orientation, the location of the hoisting interface point set 412, the location of the process interface point set 413, the function value of the comprehensive evaluation function 500, and the sub-item evaluation results, all verified through general geometric checks and consistency checks of the isochronous rectangular structural field 480, synchronous matching ridge line 490, horizontal handling time 460, and synchronous utilization 470. The output module 210 can also output plan views, 3D views, equipment coordinate files, passageway diagrams, logistics diagrams, evaluation files, and version records. The evaluation layer is saved along with the CAD / BIM model 530.

[0070] In a complete workflow, the data acquisition module 120 first reads the workshop basic data 300, production requirements 310, cable tray horizontal running speed 320, and trolley horizontal running speed 330. The building boundaries, column grids, door opening locations, floor loads, and bridge crane coverage boundaries 540 in the workshop basic data 300 are input into the basic model building module 130. The product families, production plans, process routes, and handling batches in the production requirements 310 are input into the logistics relationship modeling module 160. The cable tray horizontal running speed 320 and trolley horizontal running speed 330 are input into the dual-axis synchronous structure field building module 170.

[0071] Subsequently, the basic model building module 130 establishes a workshop basic model 400, and the facility object library building module 140 establishes facility layout object information 410. The facility layout object information 410 includes a facility component library 411, a hoisting interface point set 412, and a process interface point set 413. The constraint modeling module 150 establishes a layout constraint set 420 based on the workshop basic model 400 and the facility layout object information 410, clarifying the boundary, mutual exclusion, access, safety, and coverage conditions that candidate layouts 510 must satisfy.

[0072] Next, the logistics relationship modeling module 160 establishes logistics relationships 430 based on production requirements 310, forming a logistics frequency matrix and an adjacency matrix, and divides the logistics edges into a bridge crane hoisting set 440 and other handling sets 450. The bridge crane hoisting set 440 is output to the dual-axis synchronous structure field construction module 170, and the other handling sets 450 are output to the comprehensive evaluation module 180.

[0073] The dual-axis synchronous structure field construction module 170, for each material edge in the bridge crane hoisting assembly 440, determines the time required for the bridge to complete the displacement alone and the time required for the trolley to complete the displacement alone based on the horizontal displacement between the hoisting interface points along the bridge movement axis 550 and the trolley movement axis 560, respectively, and determines the horizontal transport time 460 based on the longer of the two times. The synchronization utilization 470 is determined based on the closeness between the time required for the bridge to complete the displacement alone and the time required for the trolley to complete the displacement alone.

[0074] The dual-axis synchronous structural field construction module 170 also generates an isochronous rectangular structural field 480 representing the reachable area based on a preset horizontal transport time, and generates a synchronous matching ridge line 490 based on the relationship that the time required for the cable tray to complete displacement alone is equal to the time required for the trolley to complete displacement alone. The isochronous rectangular structural field 480 and the synchronous matching ridge line 490 can be saved as layer records or parameter objects in the CAD / BIM model 530 for verification by the CAD / BIM geometry verification module 200.

[0075] The comprehensive evaluation module 180 establishes a comprehensive evaluation function 500 using horizontal transport time 460, synchronization utilization 470, other transport sets 450, and layout constraint sets 420. The layout optimization module 190 generates candidate layouts 510 and calls the comprehensive evaluation function 500 for iterative optimization. After optimization, the CAD / BIM geometry verification module 200 verifies the consistency of the isochronous rectangular structure field 480, synchronization matching ridge line 490, horizontal transport time 460, and synchronization utilization 470 in the CAD / BIM model 530. Finally, the results output module 210 outputs a recommended layout scheme 520.

[0076] As an alternative implementation, the horizontal travel speed of the bridge crane in a precast wall panel workshop is 1.0 meter per second (320), and the horizontal travel speed of the trolley is 0.5 meters per second (330). The longitudinal absolute displacement of the lifting interface between facility A and facility B in the CAD / BIM model 530 is 10 meters, and the lateral absolute displacement is 5 meters; the longitudinal absolute displacement of the lifting interface between facility A and facility C in the CAD / BIM model 530 is 5 meters, and the lateral absolute displacement is 10 meters. The two sets of material handling edges have the same right-angle distance, but their horizontal handling times (460) are different.

[0077] in, The horizontal transport time between facility A and facility B is 460, with the value 10 in seconds. The time required for the cable tray to complete its displacement independently and the time required for the trolley to complete its displacement independently in this logistics area are both 10 seconds, and the synchronization utilization rate is 470, which is 1.

[0078] in, The horizontal transport time between facility A and facility C is 460, and the value 20 is in seconds. The time required for the cable tray to complete its displacement alone in this logistics area is 5 seconds, and the time required for the trolley to complete its displacement alone is 20 seconds. The synchronization utilization rate is 470, which is 0.25.

[0079] Therefore, when the right-angle distance between the two sets of logistics sides is 15 meters, the existing evaluation method that only uses the right-angle distance cannot distinguish between the two. This embodiment identifies that the directional position between facility A and facility B is closer to the synchronous matching ridge line 490 by using the horizontal handling time 460 and the synchronization utilization 470, which can reflect the actual horizontal lifting difference of the bridge crane running in parallel with its two shafts.

[0080] As an optional implementation, when the horizontal coordinate of the endpoint of a high-frequency logistics edge in the bridge crane hoisting set 440 deviates from the synchronization matching ridge line 490, one of the movement axes of the bridge frame movement axis 550 or the trolley movement axis 560 will complete the horizontal displacement ahead of schedule. The comprehensive evaluation module 180 improves the function value of the comprehensive evaluation function 500 of the candidate layout 510 by increasing the synchronization mismatch cost. In subsequent iterations, the layout optimization module 190 tends to select the candidate layout 510 with higher synchronization utilization 470 and that satisfies the layout constraint set 420.

[0081] As an optional implementation, when a hoisting interface point in the hoisting interface point set 412 falls outside the bridge crane coverage boundary 540, the constraint modeling module 150 determines that the coverage condition is not met, and the layout optimization module 190 excludes the candidate layout 510 or imposes a corresponding penalty on the candidate layout 510. In this case, even if the dual-axis synchronous structure field construction module 170 can generate an isochronous rectangular structure field 480 according to the mathematical expression, the area exceeding the bridge crane coverage boundary 540 must not be considered a reachable area.

[0082] As an optional implementation, when the data acquisition module 120 cannot obtain the horizontal running speed of the cable tray 320 or the horizontal running speed of the trolley 330, the dual-axis synchronous structure field construction module 170 does not perform the calculation of the horizontal handling time 460 and the synchronization utilization 470, but instead prompts for supplementation of equipment ledgers, crane nameplates, equipment manuals, or PLC speed settings. This processing avoids bringing the unknown horizontal running speed of the cable tray 320 or the unknown horizontal running speed of the trolley 330 into the comprehensive evaluation function 500, ensuring that the recommended layout scheme 520 has verifiable basis.

[0083] As an optional implementation, if on-site safety regulations prohibit the simultaneous operation of the cable tray motion axis 550 and the trolley motion axis 560, then the dual-axis parallel calculation condition for determining the horizontal handling time 460 in this embodiment is not met. For this situation, the system can revert to the conventional sequential motion time model or exclude this material flow edge from the dual-axis synchronous evaluation process of the bridge crane lifting assembly 440. This reversion is a boundary condition and does not change the technical solution of this embodiment under the condition that the cable tray motion axis 550 and the trolley motion axis 560 are allowed to operate simultaneously.

[0084] In terms of hardware implementation, the processor 100 can be a general-purpose CPU, an industrial computer processor, a server processor, or other processor capable of performing CAD / BIM data processing and layout optimization calculations. The memory 110 can be RAM, a hard disk, a solid-state drive, a database storage device, or a network storage device. The processor 100 and the memory 110 together constitute the operating foundation of the facility layout optimization system 10, used to execute the functions of the data acquisition module 120, the basic model construction module 130, the facility object library construction module 140, the constraint modeling module 150, the logistics relationship modeling module 160, the dual-axis synchronous structural field construction module 170, the comprehensive evaluation module 180, the layout optimization module 190, the CAD / BIM geometric verification module 200, and the result output module 210.

[0085] In terms of software implementation, the facility layout optimization system 10 can be deployed as a CAD plugin, a BIM plugin, production line planning software, an intelligent construction design platform, or an independent layout optimization server. The above deployment methods are merely conventional software engineering implementation forms and do not change the data processing chain defined in the claims. During execution, the software program reads the workshop basic data 300, production requirements 310, cable tray horizontal running speed 320, trolley horizontal running speed 330, and the CAD / BIM model 530, and generates a recommended layout scheme 520.

[0086] A computer program can be stored on a computer-readable storage medium. When executed by a processor 100, the computer program performs the following steps: collecting basic workshop data 300, production requirements 310, horizontal running speed of the cable tray 320, and horizontal running speed of the trolley 330; establishing a basic workshop model 400 and facility layout object information 410; establishing a set of layout constraints 420; establishing logistics relationships 430; dividing the logistics edges into a set of cable tray hoisting 440 and other handling sets 450; generating horizontal handling time 460, synchronous utilization 470, isochronous rectangular structure field 480, and synchronous matching ridge line 490; establishing a comprehensive evaluation function 500; optimizing candidate layouts 510; performing consistency verification in the CAD / BIM model 530; and outputting a recommended layout scheme 520.

[0087] This embodiment introduces the horizontal running speed 320 of the bridge frame, the horizontal running speed 330 of the trolley, and the hoisting interface point set 412 into the CAD / BIM model 530, so that the evaluation of the hoisting set 440 of the bridge crane is transformed from a single geometric distance into a combined evaluation of horizontal handling time 460 and synchronous utilization 470, which can reflect the actual horizontal hoisting law when the bridge frame movement axis 550 and the trolley movement axis 560 are running in parallel.

[0088] This implementation method uses an isochronous rectangular structural field 480 and a synchronously matched ridge line 490 to visualize the dual-axis parallel operation characteristics of a bridge crane in the CAD / BIM model 530, enabling engineers to... Figure 1 The CAD / BIM model verification area shown directly observes the positional relationships between the bridge crane coverage boundary 540, the hoisting interface point set 412, the isochronous rectangular structural field 480, and the synchronous matching ridge line 490, thereby improving the interpretability and verifiability of the recommended layout scheme 520.

[0089] This implementation maintains the conventional process of basic data collection, workshop basic model 400 establishment, facility layout object information 410 establishment, layout constraint set 420 establishment, candidate layout 510 generation, general search algorithm iteration and result output. It only introduces the output of the dual-axis synchronous structural field construction module 170 in the evaluation of the bridge crane hoisting set 440 after the logistics relationship 430 division, the consistency verification of the comprehensive evaluation function 500 and the CAD / BIM model 530.

[0090] The embodiments of this example have been described above. However, this example is not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this example, and all of them are within the protection scope of this example.

Claims

1. A method for optimizing the layout of facilities in a precast component production workshop based on intelligent construction, applied to a CAD / BIM model of a precast component production workshop including a bridge crane, characterized in that, include: Collect basic workshop data, production requirements, horizontal running speed of cable trays, and horizontal running speed of trolleys; Establish a basic workshop model and facility layout object information, and establish a set of layout constraints based on the basic workshop model and facility layout object information; Based on the production requirements, establish logistics relationships and divide the logistics edge into bridge crane hoisting sets and other handling sets; Under the condition that the bridge frame movement axis and the trolley movement axis are allowed to run simultaneously, for the lifting assembly of the bridge crane, the time required for the bridge frame to complete the displacement alone and the time required for the trolley to complete the displacement alone are determined according to the horizontal displacement between the lifting interface points along the bridge frame movement axis and the trolley movement axis, respectively. The longer of these two times is used to determine the horizontal handling time, and the synchronization utilization is determined according to the closeness between the time required for the bridge frame to complete the displacement alone and the time required for the trolley to complete the displacement alone. An isochronous rectangular structural field representing the reachable area is generated based on a preset horizontal transport time, and a synchronous matching ridge is generated based on the relationship that the time required for the bridge to complete displacement alone is equal to the time required for the trolley to complete displacement alone. A comprehensive evaluation function is established using the horizontal transport time, the synchronization utilization, and the set of layout constraints to optimize the candidate layout; The consistency of the isochronous rectangular structural field, the synchronous matching ridge line, the horizontal transport time, and the synchronous utilization is verified in the CAD / BIM model, and a recommended layout scheme is output.

2. The method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction according to claim 1, characterized in that, Collect basic workshop data, production requirements, horizontal travel speed of the cable tray, and horizontal travel speed of the trolley, including: Obtain the building boundary, column grid, doorway location, floor load, bridge crane coverage boundary, equipment specifications, product family used to determine the production needs, production plan, process route and shift, passage requirements and safety distance requirements, and obtain the horizontal running speed of the bridge and the horizontal running speed of the trolley through equipment ledger, crane nameplate, equipment manual or PLC speed setting value. It also obtains the horizontal position sequence of the projection points of the hook or trolley, and verifies the hoisting interface point based on the horizontal position sequence of the projection points of the hook or trolley.

3. The method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction according to claim 1, characterized in that, Establish a basic workshop model and facility layout object information, and based on the basic workshop model and facility layout object information, establish a set of layout constraints, including: In a unified coordinate system, a building boundary layer, a fixed obstacle layer, a passage layer, a facility layer, and a labeling layer are established to determine the available area and the coverage boundary of the bridge crane. Based on the equipment's external dimensions, maintenance distance, inlet, outlet, operating surface, permissible orientation, foundation requirements, and the lifting or lowering interface position of prefabricated components, a facility component library and a hoisting interface point set are generated. Further, a process interface point set is established, and the layout constraint set including boundary, mutual exclusion, passage, safety, and coverage conditions is established.

4. The method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction according to claim 1, characterized in that, Based on the aforementioned production needs, logistics relationships are established, dividing the logistics edge into bridge crane hoisting sets and other handling sets, including: Based on product families, planned output, process routes, and handling batches, establish a logistics frequency matrix and an adjacency matrix. Logistics edges that are horizontally lifted by bridge cranes are assigned to the bridge crane lifting set, and logistics edges that are horizontally lifted by non-bridge cranes are assigned to the other handling set.

5. The method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction according to claim 1, characterized in that, Determine the horizontal transport time, including: The time required for the cable tray to complete its displacement independently is determined based on the horizontal displacement between the lifting interface points in the direction of the cable tray's motion axis and the horizontal running speed of the cable tray. The time required for the trolley to complete its displacement independently is determined based on the horizontal displacement between the lifting interface points in the direction of the trolley's motion axis and the horizontal running speed of the trolley. The longer of the time required for the cable tray to complete its displacement independently and the time required for the trolley to complete its displacement independently is taken as the horizontal transport time.

6. The method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction according to claim 1, characterized in that, Generate isochronous rectangular structured fields and synchronously matched ridges, including: Centered on the hoisting interface point, the achievable axis-aligned rectangular area within the preset horizontal transport time is determined based on the horizontal running speed of the cable tray, the horizontal running speed of the trolley, and the preset horizontal transport time. Multiple axis-aligned rectangular areas corresponding to different preset horizontal transport times are superimposed to form the isochronous rectangular structure field. The direction position where the time required for the cable tray to complete displacement alone is equal to the time required for the trolley to complete displacement alone is determined as the synchronous matching ridge.

7. The method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction according to claim 1, characterized in that, The comprehensive evaluation function includes hoisting time cost, synchronization mismatch cost, other logistics distance cost, adjacency penalty, spatial penalty, and safety penalty. The hoisting time cost is determined by the logistics frequency of the bridge crane hoisting set and the horizontal transport time. The synchronization mismatch cost is determined by the logistics frequency of the bridge crane hoisting set and the synchronization utilization. The other logistics distance cost is determined by the logistics frequency of the other transport sets and the preset non-bridge crane transport distance evaluation results.

8. The method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction according to claim 1, characterized in that, Verifying the consistency of the isochronous rectangular structural field, the synchronous matching ridge line, the horizontal transport time, and the synchronous utilization in the CAD / BIM model includes: The isochronous rectangular structural field and the synchronous matching ridge line are superimposed on the hoisting interface point in the preset verification object to redetermine the horizontal handling time and the synchronous utilization. The records in the CAD / BIM model are checked to be consistent with the records in the comprehensive evaluation function, and the hoisting interface point is checked to be located within the coverage boundary of the bridge crane.

9. A prefabricated component production workshop facility layout optimization system based on intelligent construction, characterized in that, It includes a data acquisition module, a basic model building module, a facility object library building module, a logistics relationship modeling module, a dual-axis synchronous structural field building module, a constraint modeling module, a comprehensive evaluation module, a layout optimization module, a CAD / BIM geometric verification module, and a results output module; The data acquisition module is used to collect basic workshop data, production requirements, horizontal running speed of the cable tray, and horizontal running speed of the trolley. The basic model building module is used to establish a basic workshop model; The facility object library construction module is used to establish a facility component library, a process interface point set, and a hoisting interface point set; The logistics relationship modeling module is used to divide the bridge crane hoisting set into other handling sets according to the production requirements, and output the bridge crane hoisting set to the dual-axis synchronous structure field construction module; The dual-axis synchronous structure field construction module is used to determine the time required for the cable tray to complete its displacement alone and the time required for the trolley to complete its displacement alone, respectively, based on the horizontal displacement between the lifting interface points along the cable tray's movement axis and the trolley's movement axis, under the condition that the cable tray's movement axis and the trolley's movement axis are allowed to run simultaneously. The longer of these two times is used to determine the horizontal transport time. The module also determines the synchronization utilization based on the closeness between the time required for the cable tray to complete its displacement alone and the time required for the trolley to complete its displacement alone, and generates an isochronous rectangular structure field and a synchronous matching ridge. The constraint modeling module is used to establish a set of layout constraints and output the set of layout constraints to the comprehensive evaluation module and the layout optimization module. The comprehensive evaluation module is used to establish a comprehensive evaluation function using the horizontal transport time, the synchronous utilization, and the set of layout constraints. The layout optimization module is used to call the comprehensive evaluation function to optimize the candidate layout; The CAD / BIM geometric verification module is used to verify the consistency of the isochronous rectangular structural field, the synchronous matching ridge line, the horizontal transport time, and the synchronous utilization. The output module is used to output recommended layout schemes.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the method for optimizing the layout of prefabricated component production workshop facilities based on intelligent construction as described in any one of claims 1 to 8.

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