CN114358397A - Method for determining material transfer path on construction site - Google Patents
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Abstract
The invention discloses a method for determining a material transportation path on a construction site, which comprises the following steps: extracting BIM model data of a construction site; determining a starting point and an end point of material transfer, and generating a travel path with the shortest distance between the two points by using BIM software; adjusting the generated travelling path according to the size of the material; according to the size of the material and a required transportation tool, making a contour model, adaptively fitting the contour model into the adjusted traveling path, and mapping along the traveling path to form a material transportation projection model; and detecting the collision relation between the material transportation projection model and the building, and finally checking the traveling path. The method provided by the invention has the advantages of reasonable design, convenience in operation and capability of reducing the influence of artificial subjective factors to the greatest extent, and compared with the existing traditional method for determining the material transfer path, the method provided by the invention has the advantages of higher speed, more accuracy and detail and higher efficiency.
Description
Technical Field
The invention relates to the technical field of material transfer path planning, in particular to a method for determining a material transfer path on a construction site.
Background
In the construction process of engineering, various construction materials and equipment need to be transported to corresponding places in the building from the outside of the field. In order to ensure the smooth construction and production and the smooth supply of materials on a complex construction site, engineering managers must make a material transportation scheme in advance, determine a transportation path and open a transportation channel communicating the inside and the outside of the site.
At present, the transportation path basically adopts a manual survey mode, and the influence on pattern planning and actual implementation is large: (1) if the actual size of the transported material is larger than the theoretical size, the site survey needs to be carried out again, and the transportation path is adjusted, so that the work is repeated and the time is prolonged; (2) the method has the advantages that a surveyor uses a two-dimensional drawing and field measurement mode, path selection is greatly influenced by subjective factors, and whether the selected path is the optimal path or not is difficult to judge; (3) in the selection of the transport means, a scheme builder can only select the transport means according to past experience, and influence caused by the change of the path width cannot be considered.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a method for determining a material transportation path on a construction site, which is used for analyzing the optimal path of the material transportation on the site based on a Building Information Model (BIM) technology and making a transportation scheme according to data analysis assistance, so that the smoothness of the transportation path and the reasonable selection of transportation tools are ensured, and the problem that the material transportation cannot be in place in time due to the complexity of the construction site is solved.
To solve the above technical problem, an embodiment of the present invention provides the following solutions:
a method for determining a material transfer path on a construction site comprises the following steps:
s1, extracting BIM model data of a construction site;
s2, determining a starting point and an end point of material transfer, and generating a travel path with the shortest distance between two points by using BIM software;
s3, adjusting the generated travelling path according to the size of the material;
s4, manufacturing a contour model according to the size of the goods and the required transportation tool, performing self-adaption to the adjusted traveling path, and mapping along the traveling path to form a goods and material transportation projection model;
and S5, detecting the collision relation between the material transportation projection model and the building, and finally checking the traveling path.
Preferably, in step S1, the BIM model data includes geometric information of a construction site building.
Preferably, the step S2 includes:
setting obstacle parameters in the BIM software according to the BIM model data, wherein the traversable part is set as a non-obstacle;
and setting path parameters in the BIM software according to the starting point and the end point of the material transfer, and generating a travel path with the shortest distance between two points by using the BIM software.
Preferably, the generating of the travel path with the shortest distance between two points by using the BIM software specifically includes:
generating a wiring: applying the grid cells to the plan view, each grid cell being given a value related to the distance between the path end points; wherein the grid cells defined as obstacles are not under consideration, and if both sides of a certain grid cell are adjacent to these grid cells defined as obstacles, the cell is not under consideration either; generating a preliminary path based on the initial calculation, and creating a node passing through the center point of the grid cell along the possible shortest path;
identifying obstacles near the preliminary path: placing a circle with a radius of a first preset value at each node along the preliminary path, and identifying the nearest intersection point of the obstacle and the circle as an angle capturing point of the modified path; in order to capture other angle capture points, performing one transmission along the preliminary path, and further searching for possible obstacles by using a larger circle with the radius of a second preset value at any node where the circle with the radius of a first preset value does not intersect with the obstacles;
generating a modification path: generating a modified path by following the wiring which is as close to the barrier as possible along the preliminary path through the angle capturing point;
optimizing a travel path; and deviating each node on the modified path from a third preset value of the obstacle, combining the approximate deviation points to smooth the path, and drawing the final optimized traveling path by using the deviation points.
Preferably, the first preset value is 0.4m, and the second preset value is 0.5 m.
Preferably, the third preset value comprises a body radius value and a body swing value, wherein the body radius value is 0.3m, the body swing value is 0.05m, and the third preset value is 0.35 m.
Preferably, the step S3 specifically includes:
according to the size of the materials, the advancing path is adjusted and checked, the advancing path is adjusted between the barriers on the two sides, and the maximum transportation space is guaranteed.
Preferably, the step S4 specifically includes:
starting adaptive model editing in BIM software, and setting spatial coordinate axes x, y and z, wherein the x axis is a length space, the y axis is a width space, and the z axis is a height space;
according to the material size and the required transportation tool, a profile model is manufactured by adopting self-adaptive parameters, wherein the profile model is the width and high space required by the whole transportation activity and comprises the material size, the transportation tool size and the personnel activity space;
starting a non-parameter model function in a projection model, establishing a virtual line, attaching the virtual line to a travel path, and dividing the virtual line, wherein the x-axis parameter of the profile model corresponding to each segment length is as follows: the occupied length of materials, the occupied length of a transportation tool and the activity space of personnel are increased;
and loading the self-adaptive contour model into a non-parameter model function to complete the spatial parameter fusion of the x, y and z axes, filling all virtual lines and completing the path planning.
Preferably, the step S5 specifically includes:
and (3) checking the collision condition between the material transportation projection model and the building by using a collision checking function in the BIM software, analyzing the position of each collision point, and checking whether the position meets the transportation condition or not, thereby finally checking the traveling path.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the method is reasonable in design, the BIM software is used for selecting the optimal path, the operation is convenient and fast, the manual exploration field and the path selection are not needed under the condition of using the model data, and the influence of artificial subjective factors can be reduced to the maximum extent; in the collision detection process of the material transportation projection model and the building, the worst factors in the path can be detected, and engineering management personnel can conveniently adjust the transportation scheme in time; compared with the conventional method for determining the material transfer path, the method provided by the invention has the advantages of higher speed, more accuracy and detail and higher efficiency.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a method for determining a material transportation path at a construction site according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of adaptive model editing according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the X-axis dimensions provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of loading an adaptive contour model into a non-parametric model according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment of the invention provides a method for determining a material transfer path of a construction site, which comprises the following steps of:
and S1, extracting BIM model data of the construction site and storing the BIM model data independently.
In this step, the BIM model data includes geometric information of the building on the construction site.
And S2, determining the starting point and the end point of the material transfer, and generating a travel path with the shortest distance between two points by using BIM software.
The method specifically comprises the following steps: setting obstacle parameters in BIM software according to the BIM model data, wherein a traversable part (such as a door) is set as a non-obstacle; and setting path parameters in the BIM software according to the starting point and the end point of the material transfer, and generating a travel path with the shortest distance between two points by using the BIM software.
Specifically, the step of generating the travel path with the shortest distance between two points by using the BIM software specifically includes:
generating a wiring: applying the grid cells to the plan view, each grid cell being given a value related to the distance between the path end points; wherein the grid cells defined as obstacles are not under consideration, and if both sides of a certain grid cell are adjacent to these grid cells defined as obstacles, the cell is not under consideration either; generating a preliminary path based on the initial calculation, and creating a node passing through the center point of the grid cell along the possible shortest path;
identifying obstacles near the preliminary path: placing a circle with a radius of a first preset value (for example: 0.4m) at each node along the preliminary path, and identifying the nearest intersection point of the obstacle and the circle as a corner capture point of the modified path; in order to capture other corner capture points, a pass is performed along the preliminary path, at any node where the circle with the radius of the first preset value does not intersect with the obstacle, a larger circle with the radius of a second preset value (for example: 0.5m) is used for further searching for possible obstacles;
generating a modification path: generating a modified path by following the wiring which is as close to the barrier as possible along the preliminary path through the angle capturing point;
optimizing a travel path; deviating each node on the modified path from a third preset value of the obstacle, wherein in the algorithm, the traveling path is based on human, and the third preset value comprises a body radius value and a body swing value, wherein the body radius value is 0.3m, the body swing value is 0.05m, and the third preset value is 0.35 m; the offset is 90 ° projected from the entrance/exit angle to the node, with a minimum of 30 ° between offset points; the close offset points (less than 0.3m) are merged to smooth the path, and the final optimized travel path is drawn using the offset points.
And S3, adjusting the generated travelling path according to the size of the material.
In the step, the advancing path is adjusted and checked according to the size of the material, and the advancing path is adjusted between the barriers on the two sides, so that the maximum transportation space is guaranteed.
S4, according to the size of the goods and the needed transportation tool, making a contour model, self-adapting to the adjusted traveling path, and mapping along the traveling path to form a goods and transportation projection model.
The method specifically comprises the following steps:
starting adaptive model editing in BIM software, and setting spatial coordinate axes x, y and z, wherein the x axis is a length space, the y axis is a width space, and the z axis is a height space;
according to the material size and the required transportation tool, a profile model is manufactured by adopting self-adaptive parameters, wherein the profile model is the width and high space required by the whole transportation activity and comprises the material size, the transportation tool size and the personnel activity space, and is shown in figure 2;
starting a non-parameter model function in a projection model, establishing a virtual line, attaching the virtual line to a travel path, and dividing the virtual line, wherein the x-axis parameter of the profile model corresponding to each segment length is as follows: the material occupies the length + the transportation tool occupies the length + the personnel activity space, as shown in fig. 3;
and loading the self-adaptive contour model into a non-parameter model function to complete the spatial parameter fusion of the x, y and z axes, filling all the virtual lines and completing the path planning, as shown in fig. 4. In fig. 4, (1) is a material transportation starting point, (2) is a generated optimal path, (3) is a material transportation projection model, and (4) is a material transportation end point.
And S5, detecting the collision relation between the material transportation projection model and the building, and finally checking the traveling path.
In the step, the collision condition between the material transportation projection model and the building is checked by using a collision check function in the BIM software, the position of each collision point is analyzed, whether the position meets the transportation condition is judged, and therefore the final check is carried out on the traveling path.
The method for determining the material transfer path is reasonable in design, the optimal path is selected by utilizing BIM software, the operation is convenient and fast, the artificial exploration field and the path selection are not needed under the condition of using model data, and the influence of artificial subjective factors can be reduced to the maximum extent; in the collision detection process of the material transportation projection model and the building, the worst factors in the path can be detected, and engineering management personnel can conveniently adjust the transportation scheme in time; compared with the conventional method for determining the material transfer path, the method provided by the invention has the advantages of higher speed, more accuracy and detail and higher efficiency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A method for determining a material transfer path on a construction site is characterized by comprising the following steps:
s1, extracting BIM model data of a construction site;
s2, determining a starting point and an end point of material transfer, and generating a travel path with the shortest distance between two points by using BIM software;
s3, adjusting the generated travelling path according to the size of the material;
s4, manufacturing a contour model according to the size of the goods and the required transportation tool, performing self-adaption to the adjusted traveling path, and mapping along the traveling path to form a goods and material transportation projection model;
and S5, detecting the collision relation between the material transportation projection model and the building, and finally checking the traveling path.
2. The method for determining the material transfer path at the construction site according to claim 1, wherein the BIM model data includes geometric information of the construction site building in step S1.
3. The method for determining a material transfer path at a construction site according to claim 1, wherein the step S2 includes:
setting obstacle parameters in the BIM software according to the BIM model data, wherein the traversable part is set as a non-obstacle;
and setting path parameters in the BIM software according to the starting point and the end point of the material transfer, and generating a travel path with the shortest distance between two points by using the BIM software.
4. The method for determining the material transportation path on the construction site according to claim 3, wherein the step of generating the travel path with the shortest distance between two points by using the BIM software specifically comprises the following steps:
generating a wiring: applying the grid cells to the plan view, each grid cell being given a value related to the distance between the path end points; wherein the grid cells defined as obstacles are not under consideration, and if both sides of a certain grid cell are adjacent to these grid cells defined as obstacles, the cell is not under consideration either; generating a preliminary path based on the initial calculation, and creating a node passing through the center point of the grid cell along the possible shortest path;
identifying obstacles near the preliminary path: placing a circle with a radius of a first preset value at each node along the preliminary path, and identifying the nearest intersection point of the obstacle and the circle as an angle capturing point of the modified path; in order to capture other angle capture points, performing one transmission along the preliminary path, and further searching for possible obstacles by using a larger circle with the radius of a second preset value at any node where the circle with the radius of a first preset value does not intersect with the obstacles;
generating a modification path: generating a modified path by following the wiring which is as close to the barrier as possible along the preliminary path through the angle capturing point;
optimizing a travel path; and deviating each node on the modified path from a third preset value of the obstacle, combining the approximate deviation points to smooth the path, and drawing the final optimized traveling path by using the deviation points.
5. The method for determining the material transferring path at the construction site according to claim 4, wherein the first preset value is 0.4m, and the second preset value is 0.5 m.
6. The method of claim 4, wherein the third preset value comprises a body radius value and a body swing value, wherein the body radius value is 0.3m, the body swing value is 0.05m, and the third preset value is 0.35 m.
7. The method for determining the material transfer path at the construction site according to claim 1, wherein the step S3 specifically includes:
according to the size of the materials, the advancing path is adjusted and checked, the advancing path is adjusted between the barriers on the two sides, and the maximum transportation space is guaranteed.
8. The method for determining the material transfer path at the construction site according to claim 1, wherein the step S4 specifically includes:
starting adaptive model editing in BIM software, and setting spatial coordinate axes x, y and z, wherein the x axis is a length space, the y axis is a width space, and the z axis is a height space;
according to the material size and the required transportation tool, a profile model is manufactured by adopting self-adaptive parameters, wherein the profile model is the width and high space required by the whole transportation activity and comprises the material size, the transportation tool size and the personnel activity space;
starting a non-parameter model function in a projection model, establishing a virtual line, attaching the virtual line to a travel path, and dividing the virtual line, wherein the x-axis parameter of the profile model corresponding to each segment length is as follows: the occupied length of materials, the occupied length of a transportation tool and the activity space of personnel are increased;
and loading the self-adaptive contour model into a non-parameter model to complete the spatial parameter fusion of the x axis, the y axis and the z axis, filling all the virtual lines and completing the path planning.
9. The method for determining the material transfer path at the construction site according to claim 1, wherein the step S5 specifically includes:
and (3) checking the collision condition between the material transportation projection model and the building by using a collision checking function in the BIM software, analyzing the position of each collision point, and checking whether the position meets the transportation condition or not, thereby finally checking the traveling path.
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