CN108335356B - Automatic generation method of three-dimensional model of subway station - Google Patents
Automatic generation method of three-dimensional model of subway station Download PDFInfo
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- CN108335356B CN108335356B CN201711403001.0A CN201711403001A CN108335356B CN 108335356 B CN108335356 B CN 108335356B CN 201711403001 A CN201711403001 A CN 201711403001A CN 108335356 B CN108335356 B CN 108335356B
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Abstract
The invention relates to an automatic generation method of a three-dimensional model of a subway station, which comprises the following steps: step 1, obtaining station parameters and room parameters; step 2, generating outlines for arranging rooms according to the station parameters and the room parameters; step 3, according to the type and the room priority of the station room and the regional priority of different regions of the outline, arranging the rooms in different regions in the generated outline; step 4, acquiring spatial information of a passage for pipeline arrangement according to the room arrangement result and the station parameters in the step 3, wherein the passage is divided into a plurality of passage segments, and the spatial information comprises passage segment information for recording positions of the passage segments; step 5, acquiring the end point information and the pipeline size information of each pipeline to be distributed; and 6, carrying out pipeline arrangement according to the information obtained in the steps 4 and 5, and generating a subway station three-dimensional model according to the arrangement results of the rooms and the pipelines.
Description
Technical Field
The invention relates to the technical field of computer aided design of constructional engineering, in particular to an automatic generation method of a three-dimensional model of a subway station.
Background
At present, in the construction of rail transit facilities (such as subway stations), 2D CAD technology is mostly adopted in the subway construction planning design process, two-dimensional drawing planning design is mainly used, and designers gradually complete the planar and three-dimensional design of the subway stations by drawing lines and blocks, continuously considering various factors and conditions, and continuously modifying.
In addition, after the layout of the station room is completed, the layout of the laying of various large pipelines is continued. The number of pipelines related to each subway station is dozens of pipelines and hundreds of pipelines, so that the number is large, the variety is complicated, and different professions are related. Designers of the global pipeline layout need to gather pipeline diagrams drawn by professional designers individually, then observe each section along a corridor, and adjust each section one by one if conflicts and collisions occur, so that the previous adjustment is ensured not to be changed as far as possible until all parts are adjusted. And then, feeding back the pipeline paths after adjustment to each professional designer to obtain final confirmation, or continuing to perform a new adjustment round according to the opinions of each professional designer until all the professionals do not have opinions.
The above procedure leads to the following problems: the time for the designer to subsequently modify the design is longer; the probability of errors is high due to special design made manually by designers; when the pipeline is changed to design examination, modification suggestions provided by conference participants are difficult to modify and demonstrate on site, the difficulty of examination is increased, the efficiency of examination is reduced, problems are not easy to find, and design defects are easy to occur.
In a word, the existing subway station working process easily causes that project points are difficult to identify, information coordination is difficult, and project construction risks are greatly increased. The traditional planning and designing technologies are difficult to meet the requirements of modern subway construction.
Therefore, there is a need to reduce the labor intensity of designers by means of computer aided design, and also to improve the quality and efficiency of design.
Disclosure of Invention
In view of the above, the inventor of the present invention has developed an automatic generation method of a three-dimensional model of a subway station by means of computer-aided design, aiming at the above technical problems. The invention can automatically complete the station design according to the design standard and experience by uniformly operating and processing various information conditions, and obtain a more reasonable station model through operation optimization.
Although the subway station looks almost like the appearance, the change is very much from the model point of view, and the inventor arranges the parameter types for determining each building model of a station through a great deal of previous research including the research on the existing design results and develops the position relation among the building models of the station and a parameter calculation method. The invention automatically generates the subway station building three-dimensional model aiming at the station room characteristics of the subway station and the space elements such as the corridor, automatically generates the three-dimensional model of each professional pipeline in a proper area (such as the top of the corridor) according to the pipeline requirement and the space condition of each professional, and further integrates the three-dimensional model of each professional pipeline with the subway station building three-dimensional model into a complete subway station three-dimensional model.
According to the embodiment of the invention, the automatic generation method of the three-dimensional model of the subway station is provided, and comprises the following steps: step 1, obtaining station parameters and room parameters; step 2, generating outlines for arranging rooms according to the station parameters and the room parameters; step 3, according to the type and the room priority of the station room and the regional priority of different regions of the outline, arranging the rooms in different regions in the generated outline; step 4, acquiring spatial information of a passage for pipeline arrangement according to the room arrangement result and the station parameters in the step 3, wherein the passage is divided into a plurality of passage segments, and the spatial information comprises passage segment information for recording positions of the passage segments; step 5, acquiring the end point information and the pipeline size information of each pipeline to be distributed; and 6, carrying out pipeline arrangement according to the information obtained in the steps 4 and 5, and generating a subway station three-dimensional model according to the arrangement results of the rooms and the pipelines.
In summary, the present invention calculates and processes the demand information of various specialized rooms and pipelines and the three-dimensional spatial information of corridor paths uniformly, automatically arranges and optimizes the paths according to the relevant standards and experiences of room and pipeline arrangement, and automatically generates room and pipeline models in the corridor. Therefore, the beneficial effects of the invention are mainly as follows: the layout speed of the rooms and pipelines is high, and the efficiency is high; the design method is simple and easy to learn; through algorithm optimization, the design scheme is more reasonable, and the design quality is ensured.
Therefore, the beneficial effects of the invention are mainly as follows: the room layout speed is high, and the efficiency is high; the design method is simple and easy to learn and has strong adaptability; through algorithm optimization, the design scheme is more reasonable, and the design quality is ensured.
Drawings
Fig. 1 is a schematic flow chart of a method for automatically generating a three-dimensional model of a subway station according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of room arrangement in a method for automatically generating a three-dimensional model of a subway station according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of pipeline arrangement in the automatic generation method of the three-dimensional model of the subway station according to the embodiment of the invention;
FIGS. 4-6 are schematic diagrams of candidate pipe layout endpoint merging, according to embodiments of the invention;
fig. 7 illustrates a runtime environment of a system in which an application is installed, according to an embodiment of the present invention.
Detailed Description
The following describes the embodiments in further detail with reference to the accompanying drawings.
It will be appreciated by those skilled in the art that while the following description refers to numerous technical details of embodiments of the present invention, this is by way of example only, and not by way of limitation, to illustrate the principles of the invention. The present invention can be applied to places other than the technical details exemplified below as long as they do not depart from the principle and spirit of the present invention.
In addition, in order to avoid limiting the description of the present specification to a great extent, in the description of the present specification, it is possible to omit, simplify, and modify some technical details that may be obtained in the prior art, as would be understood by those skilled in the art, and this does not affect the sufficiency of disclosure of the present specification.
Hereinafter, embodiments for implementing the present invention will be described.
Fig. 1 is a schematic flow chart of a method for automatically generating a three-dimensional model of a subway station according to an embodiment of the present invention.
The design of a station building is one of main contents generated by a three-dimensional model of a subway station, and the model of the station building comprises a station outer wall, a station inner wall (room), doors and windows, stairs, columns and the like. According to the embodiment of the invention, the automatic generation of the three-dimensional model of the subway station is mainly divided into the following steps which are related to each other:
step 1(S10), obtaining station parameters and room parameters;
step 2(S20), generating a contour for arranging the room according to the station parameter and the room parameter;
step 3(S30) of arranging the rooms within the generated outline;
step 4(S40), acquiring spatial information of a path for pipeline arrangement, wherein the path is divided into a plurality of path segments, the spatial information including path segment information recording positions of the path segments, according to the room arrangement result of step 3 and the station parameter;
step 5(S50), acquiring end point information and pipeline size information of each pipeline to be arranged;
and step 6(S60), performing pipeline arrangement according to the information acquired in steps 4 and 5, and generating a subway station three-dimensional model according to the arrangement results of the rooms and the pipelines.
The station parameters and the room parameters not only include design requirements of a user according to a design object, but also include design parameters used for calculation obtained through calculation of the parameters.
The station parameters can be divided into a plurality of large categories, which are mainly used for determining the overall station size, the size and the position of each functional area, and common parameters of some models, such as wall thickness and the like.
The room parameters determine the number, size, mutual relationship and other parameters of the rooms to be distributed in the station, and are used for the arrangement of the rooms in the station.
And the user selects the room in the station according to the overall requirements of the station in the earlier stage, and corrects the parameters to obtain all room parameters used by the station.
The room parameters may include:
1. room table data, containing 3 parts, namely:
1) a used house library comprising names of all rooms and configured door parameters;
2) the working area house library describes rooms contained in each working area;
3) and the position library describes characteristic parameters such as the relation among all the rooms, the room area and the like, and the system automatically combines the room table of one station according to the selected station parameters.
2. The group library is used for defining the overall arrangement mode of a group of rooms and exists in the form of a gallery.
The automatic generation process of the station frame is explained below.
The generation process of the station outer frame is obtained through calculation according to parameters provided by the station parameters, and then is completed through drawing of tools provided by a CAD platform.
The station outer frame is divided into a public area, a room area and a ventilator room area, and related parameters are obtained through station parameter calculation respectively, wherein the specific data relationship is as follows:
1. longitudinal length scale of station main body
The longitudinal length is equal to the span width of the longitudinal column in the public area multiplied by the span number of the longitudinal column in the public area, the span of the deformation joint in the public area, the span number of the longitudinal column in the equipment area, the span width of the longitudinal column in the ventilator room and the longitudinal column distance of the air duct at the end head
Wherein, the correlation elements of the span width of the longitudinal column of the public area comprise: vehicle type, construction method and crossing form.
The related elements of the number of the longitudinal column spans of the public area comprise: marshalling, vehicle type, construction method and crossing form.
The related elements of the common zone deformation joint span comprise: vehicle type, marshalling, crossing form, construction method (not dug in the dark, dug in the open).
The related elements of the longitudinal column span number of the equipment area comprise: the method comprises the following steps of vehicle type, construction method, crossing form, platform width, substation type, platform form and ventilation mode (the last 2 interfaces need to be reserved).
The cross-width related elements of the longitudinal column of the ventilator room comprise: ventilation mode, construction method, crossing form.
The related elements of the longitudinal column distance of the end air duct comprise: ventilation mode, shield well type, shield machine size.
2. Transverse column spacing of station
The association relationship comprises: vehicle model, platform width, cross form.
3. Effective platform length
The related elements comprise: vehicle type and grouping.
4. Center line of track
The related elements comprise: and (5) vehicle type.
In addition, due to the existence of the wiring, part of pillars in the station must be avoided from the wiring for position adjustment, and the related flow is as follows:
a) and when the closest point of the edge of the structural column to the central line of the line is less than 2150mm, the transverse translation is carried out to the inner side of the platform width according to 2150mm from the line fork to the far end of the station.
b) When the distance between the structural pillars according to the line deviation is less than 1500mm, the two structural pillars are combined into one 700 × 1000 structural pillar.
c) And when the distance between the structural column and the off-line route is less than 2000mm, the structural column is cancelled, and the position of the structural column is determined according to the wiring form.
d) When the distance between the two positive lines and the line of the single crossover line or the stop line is more than 5000mm, a 700 x 1000 structural column is required to be added according to the column span relationship; the additional position is 2150mm away from the positive line.
In addition, for the subway station set by selecting the plug-in form, the wall limit positions of the large end, the small end and the plug-in part of the main body of the plug-in station are obtained. The design of the external frame of the station is that a user firstly demarcates a range red line (control line) according to the terrain condition, namely the maximum range of the station, and then comprehensively obtains the most reasonable frame model according to the house using condition.
The following describes a method for automatically arranging rooms in a station.
Fig. 2 is a schematic flow chart of room arrangement in the automatic generation method of the three-dimensional building model of the subway station according to the embodiment of the invention.
As shown in fig. 2, the room arrangement inside the station is divided into a station hall layer arrangement and a station layer arrangement, which are mainly based on the station hall layer arrangement, and the station layer arrangement completes the arrangement according to the correspondence between the upper and lower layers and the size and number of the rooms.
1. Room arrangement of station hall layer
The large end of the station hall adopts a U-shaped channel design, a room using area is divided into three air conditioner subareas, rooms arranged at the large end are arranged in the three subareas according to the air conditioner categories, then the rooms of each subarea are arranged according to the room position relation, and the positions of partial rooms are adjusted according to the requirement of the room area balance of the air conditioner subareas.
In general, the room arrangement includes the following arrangement rules:
1) and (3) fixing the arrangement rule of the rooms: fixed location rooms (including teams, fixed locations including both ends of the area) are first arranged, and then the associated rooms are arranged in an adjacent relationship. Secondly, consider that the non-stridable rooms are arranged in an outward sequence according to the principle of proximity.
2) Adjustable room (cross-zone) arrangement rules:
after the fixed rooms are arranged, the local areas can be arranged in a cross-area mode sequentially (according to the size and the direction), and if the adjustable rooms which are not arranged are arranged as adjustable rooms in other spare areas. In other areas (areas 1 and 3), firstly, the adjustable rooms in the area are arranged, then the adjustable rooms allocated by other areas are arranged, and when the adjustable rooms in other areas are arranged, the adjustable rooms are crossly placed in the air-conditioning subareas according to the room size sequence and the alternating leading principle, and the distances extending to the public area respectively are recorded.
Wherein detailed issues of team position, pillar impact, door placement, distance pattern integration, etc. need to be considered.
The method comprises the following steps that the channel positioning is required for the room partition.
Starting to search columns (attention is paid to columns with variable spanning positions) along the boundary line of the default public area and the used room area, wherein the positions of the columns are not changed, the outer edges of the two rows of columns are used as the inner edges of the channel wall, and the channel width is 2000 mm; changing the crossing position, and confirming the channel path in a graphic mode;
the large end of the platform layer and the outer edges of the channel walls are aligned with the outer edges of the two rows of pillars;
reading a corresponding station room according to an arrangement area (such as a station hall layer large end) selected by a user;
acquiring an automatic arrangement program of a current area, and grouping rooms according to a default air conditioning area by a station hall layer large end;
the layout area is divided into three zones in the form of channels.
The specific rules for the allocation and automatic arrangement of the zones to which the rooms belong are as follows:
(1) reading room names contained in a toilet group and a staircase group at the large end of the station hall layer, and filtering the rooms at the large end of the station hall layer for the station;
(2) combining rooms with adjacent relationships into a new room, if room A, B has an adjacent relationship, A, B appears as an automatic placement program behind a room, and if there are both stridable and non-stridable rooms in the room before combination, the new room is a non-stridable area;
(3) screening non-stridable-area rooms in the station rooms;
(4) arranging a station control room and a comprehensive control equipment room of the second area close to the public area;
(5) arranging a staircase group and a toilet group, wherein the two groups are positioned at two sides of the fixed post;
(6) checking a toilet group and a comprehensive control equipment room, if the vacant area is gapless and the space is insufficient, reducing the station control room and the comprehensive control equipment room according to the room area reducing principle, if the room placement is realized under the condition of no outward expansion, and if the room placement is impossible, the room placement is expanded according to the minimum distance;
if a gap exists and the area of the gap is more than or equal to 0.5 times of the area of the station length duty room, the station length duty room is moved to the gap, two possibilities are provided after the station length duty room is moved, and a blank room needs to be expanded or added;
(7) arranging the rooms of the first zone and the third zone with non-straddling zones, firstly arranging adjacent room C … … of adjacent room B, B of A, A close to the common zone;
(8) after the arrangement of the rooms which cannot be spanned is completed, the rooms with the contraposition relation of each area are screened, and the rooms are distributed to the areas to which the rooms belong;
(9) all the rest rooms are sorted according to the area, the area with the largest area in the rooms is filled in the area with the largest remaining space, and the process is circulated until all the rooms are distributed;
(10) checking whether external expansion is needed, if not, automatically arranging according to the condition, if so, adjusting according to the room area reduced amplitude, verifying whether external expansion is needed again after adjustment, if still needed, popping up a window to prompt a user to expand the distance, and selecting whether to automatically arrange according to the external expansion by the user;
(11) the rooms behind the second area stairwell group are preferentially arranged according to the adjacent relation, the rest rooms distributed to the area are preferentially arranged according to the 'approach' principle, and finally the rooms without position requirements are arranged;
(12) the first area and the third area are arranged according to the room of the adjacent public area in the first priority, the next is the close relation, the next is the contraposition relation, and the last is the room without the position requirement;
next, a room arrangement flow will be described by taking an external trailer station arrangement as an example.
1) Firstly, calculating the position of a station central point through a small-end control line and station elements (see station parameters);
2) calculating the starting point of the large-end equipment room area through the central point of the station and the elements (see the parameters of the station) of the station;
3) calculating station outer contour parameters (detailed station parameters) and plug-in area sizes according to the station parameters;
4) sequentially inspecting 3 station plug-in modes, arranging the room groups to plug-in areas one by one according to the room group priority extrusion sequence (after a room extrusion principle), arranging the rooms in the station according to the room arrangement process, adjusting the station column span according to the result of the rooms in the station, and correcting the length of the station until the large end wall of the station enters the control line range to serve as a recommended scheme A; continuously extruding the room, repeating the calculation, and taking out the scheme which is in the control line and has the shortest total station length as a recommended scheme B;
after one plug-in mode meets the requirement of a control line, the latter plug-in mode is not considered any more.
4) Listing all possible scenarios within the scenario a and scenario B interval, the listing showing the contraction distance and the expected "spare room area" for all scenarios, after which the final scenario may be manually selected by the user;
5) if all plug-in modes cannot meet the requirements of the control line, prompting a user that the current control line control range cannot realize the comprehensive arrangement of the rooms for the station and the position of the control line is required to be adjusted;
6) the wall body of the external hanging part can not exceed the external hanging control line, and once the wall body exceeds the external hanging control line, a user is prompted to 'the current control line control range can not realize the comprehensive arrangement of the station rooms, and the position of the control line is required to be adjusted'.
The room extrusion principle is explained below.
Three attributes of 'external hanging room group', 'external hanging priority' and 'external hanging position' are arranged in the room table and are used for automatically generating room references extruded to the external hanging part when the external hanging station is generated. When designing the plug-in station, firstly considering the plug-in position, then considering the plug-in grade, and considering the moving-out calculation of the related rooms in sequence.
The 3 station external hanging modes are explained as follows.
1) The double layers of the substation are arranged on the main body
In the plug-in mode, after a room 'transformation and distribution room (3)' is added to the room table, room groups with plug-in priorities of 1, 2, 3 and 4 are sequentially plugged into the plug-in part of the station hall. The station is only provided with a row of rooms outside the station hall layer. The aisle and room locations are defined in standard sizes.
2) The single layer of the substation is arranged outside the platform
In the plug-in mode, a substation room group is plug-in to a station plug-in, and room groups with plug-in priorities of 0, 1, 2, 3, 4 and 5 are plug-in sequence.
Two rows of rooms are hung outside the station, the positions of the passages are defined by standards, the first row of the room arrangement in the station hall is the priority 0 and the priority 2, and the rest rooms are located in the second row and the platform is a row of rooms.
3) Substation, partial rooms are arranged on the platform in a single layer mode and hung outside
In the plug-in mode, the parts of the room groups of the substation are plugged in the station plug-in mode, the room groups with the plug-in priorities of 0, 1, 2, 3, 4, 5, 6, 7 and 8 are sequentially plugged in the station plug-in mode, and the civil communication equipment is noticed to be plugged in the station plug-in mode.
Fig. 3 is a schematic flow chart of pipeline arrangement in the automatic generation method of the three-dimensional model of the subway station according to the embodiment of the invention.
In general, in the automatic pipeline arrangement process according to an embodiment of the present invention, useful information mainly includes spatial information of paths, and end point information of respective pipelines. According to a preset rule, the two types of information are combined, and the optimal path of each pipeline system can be obtained through calculation.
As shown in fig. 3, the automatic arranging method of the subway station pipeline according to the embodiment of the present invention mainly includes the following steps:
next, optionally, the piping arrangement may be continued according to the result of the room arrangement. In general, in the automatic pipeline arrangement process according to an embodiment of the present invention, useful information mainly includes spatial information of paths, and end point information of respective pipelines. According to a preset rule, the two types of information are combined, and the optimal path of each pipeline system can be obtained through calculation.
The automatic pipeline arrangement process in the automatic generation method of the three-dimensional building model of the subway station mainly comprises the following steps of:
step 1(S100), acquiring spatial data of a passage for pipeline arrangement;
the spatial data of the passage for arranging various pipelines can be acquired according to the geometric information of the building component where the subway station is located, the station parameters and the like provided by the building major. The building elements may include wall, door, window, post, etc. models. For example, the geometric information includes digital information such as station center coordinates, station dimensions (length, width), and the like, and is described in a specific data structure.
Step 2(S200), acquiring end point information, pipe diameter information and the like of pipelines of various pipeline systems;
the end point information includes start point and end point information of the pipeline (for example, outlet and inlet positions of the wind tunnel), and may further include intermediate node information of the pipeline.
Step 3(S300), obtaining all possible pipeline paths of each pipeline according to the information obtained in the steps 1 and 2, then respectively selecting one possible pipeline path for each pipeline, and obtaining a plurality of candidate pipeline arrangement schemes comprising the pipeline paths of each pipeline after permutation and combination, wherein the pipeline paths are represented by the passage segments through which the pipeline paths pass;
and 4, selecting one of the candidate pipeline arrangements as an optimal pipeline arrangement according to the pipeline information of the pipeline path in each candidate pipeline arrangement on each passage segment through which the pipeline path passes (S400).
Step 5(S500), the position of each pipeline in the optimal pipeline layout plan on the section of each passage segment through which it passes is determined.
The method comprises the steps of firstly determining the passage section with the highest filling rate (the most unfavorable position) in the passage sections passed by the optimal pipeline arrangement scheme, then determining the position of each pipeline in the passage section with the highest filling rate on a section (the pipeline is arranged at the most unfavorable position), and then determining the position of each pipeline in other passage sections on the section.
Specifically, the step 1 includes:
step 1-1, obtaining a path contour line;
the center point of the corridor is used as a starting point, walls, doors and windows can be automatically searched, and a closed contour line of the corridor can be drawn and obtained. The contour lines may be drawn to the terminal location. In addition, the method also allows the space range obtained by automatic search to be adjusted, or the contour to be adjusted, and the broken line can be automatically merged.
In addition, the contour lines for the above-mentioned vias may be obtained according to any conventional method, and for the sake of brevity, will not be described herein again.
1-2, dividing a path into path segments according to a path contour line;
and matching the contours according to the contour lines obtained above to obtain the center line of each pair of contours, and identifying the center line as a continuous line segment. The continuous line segment can be divided into a straight segment and a turning segment. Each straight section is an independent minimum pipeline arrangement unit, and the arrangement positions of various pipelines in the unit are consistent.
Step 1-3, acquiring cross section information of each passage segment;
wherein identification of structures in the via is performed, including identification of the beam-column and identification of the roof structure. The top structure forms an envelope according to the shapes of the beam column and the top, and the overall shape of the section is finished. From the recognition result, the position (with respect to the center line) where the change occurred in the cross section of each passage segment is recorded, that is, the cross section information of the passage segment is formed.
And 1-4, dividing the passage segment into a plurality of subsections according to the shape of the cross section.
For example, the position where the sectional shape is changed serves as a boundary of each sub-section, and boundary information is recorded. These variations include: the suspended ceilings with different heights have changed positions, the positions of structures (beams, tucks, corners, tops and the like) are changed, and the positions of the suspended ceilings cross pipelines.
Specifically, in step 2, the plurality of start points and the plurality of end points of the pipeline may be set in the same plan view according to professional and systematic classifications, the start points need to have numbers, and the start points and the end points of the same professional and systematic need to establish relationships by using the numbers.
For example, the endpoints may have the following limitations: any specialty and system is that one starting point corresponds to a plurality of end points, and a plurality of starting points cannot correspond to one end point. The starting point and the end point can be positioned in the channel or outside the channel;
for example, in the field of motion picture, a motion picture system sets a plurality of starting points, and n paths generated by all the starting points and all the end points are integrated into one path. The multiple paths generated by the multiple origins of other specialties (plumbing, ventilation, weak electricity) do not need to be integrated.
Optionally, before automatically arranging each professional pipeline, the number of end points of each subsystem is reduced, and the rule is as follows:
a. n end points of the same system in the same path can be combined into one end point consideration, and only one path scheme is provided, for example, referring to fig. 4, if a total of 5 end points belong to two paths respectively, the two end points can be considered as two end points (starting point: circle + point, end point: circle + cross);
b. when the starting point and the end point coexist in a section of the path, the end points on both sides need to be merged with each other by taking the position of the starting point as a boundary, as shown in fig. 5;
c. according to rule a, by way of example, see FIG. 6, if there are two permutations (up/down) for each of the original 11 endpoints of the system, 2 in total112048 species, 11 endpoints are mergedAfter 5 groups (same protocol in each group) only 2 remain532 arrangements are provided.
Specifically, before performing step 3, the following setting process may be further included.
1) Setting initial conditions
By way of example, the types of lines routed include: the wind pipe, the bridge frame and the water pipe are divided into three layers.
The arrangement conditions of various pipelines are set, including length-width ratio, pipe diameter ratio and the like.
2) Setting an arrangement rule;
the arrangement rules include global rules and arrangement rules of various pipelines.
For example, the global rule is: two sides and one side are preferably arranged, and the other side is selected when the arrangement space is narrow.
The arrangement rules of the various pipelines include the up-down positional relationship of the various pipelines, the positional relationship from the top wall, the side wall, and the like.
Specifically, the step 4 workflow includes:
step 4-1, matching each pipeline path arrangement scheme with the passage segments, and storing a matching relation;
step 4-2, calculating the pipeline filling rate, the average filling rate and the filling rate variance of each passage segment;
wherein, for example, the filling rate is: fill 1, under <1, under >1,
4-3, optionally, calculating the optimization rate of the pipeline arrangement scheme according to the pipeline length, the number of the passage segments and other factors;
for example, the shorter the pipeline length, the fewer the number of pass-through segments, and the smaller the fill rate variance, the higher the optimization rate.
4-4, combining the calculation results to select an optimal pipeline layout path;
the selection principle is as follows:
plane path optimization rule: the total length is short, and the number of the passing paths is less, which is optimal.
Specifically, in step 4-2, the filling rate of the section layout line is calculated as follows:
step 4-2-1, calculating the total area of the pipeline arrangement area (the area of the cross pipe, the tuck leg and the beam is subtracted from the area of the top lower part and the ceiling)
Step 4-2-2, calculating the occupied area of the air pipe (including the distance from the top and the distance from the side surface to the side wall)
Step 4-2-3, calculating the area occupied by various bridges and the area of the gap required by the various bridges and the upper, lower, left and right sides
Step 4-2-4, calculating the area of the water pipes (various water pipes + the space area of the upper part, the lower part, the left part and the right part)
Step 4-2-5, calculating the occupied area of the maintenance space (the air pipe area is not needed, only the bridge frame is used for the interval from the water pipe)
And 4-2-6, dividing the sum of the occupied areas by the total arrangeable space area 0.7 to calculate the filling rate.
Specifically, the step 5 may include:
step 5-1, determining the passage segment with the highest filling rate in the passage segments passed by the optimal pipeline arrangement scheme;
step 5-2, determining the position of each pipeline in the passage segment with the highest filling rate on the section;
and 5-3, sequentially determining the position of each pipeline in other passage segments on the section according to the position determined in the step 5-2 and the descending order of the filling rate.
System with application installed according to embodiments of the present invention
Referring to FIG. 7, a runtime environment for an application-installed system is shown, in accordance with an embodiment of the present invention.
In this embodiment, the system for installing the application is installed and operated in the electronic device. The electronic device can be a desktop computer, a notebook, a palm computer, a server and other computing equipment. The electronic device may include, but is not limited to, a memory, a processor, and a display. FIG. 6 only shows an electronic device having the above-described components, but it should be understood thatIt is not required that all illustrated components be implemented, and more or fewer components may alternatively be implemented. The program-installed system may be a commercially available operating system, for example
The program can be an AutoCAD platform, and can also be a platform of other three-dimensional software, such as Revit and the like.
The memory may in some embodiments be an internal storage unit of the electronic device, such as a hard disk or a memory of the electronic device. The memory may also be an external storage device of the electronic apparatus in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, provided on the electronic apparatus. Further, the memory may also include both an internal storage unit and an external storage device of the electronic apparatus. The memory is used for storing application software installed in the electronic device and various types of data, such as program codes of the system for installing the application programs. The memory may also be used to temporarily store data that has been output or is to be output.
The processor may be, in some embodiments, a Central Processing Unit (CPU), a microprocessor, or other data Processing chip, for running program code stored in the memory or Processing data, such as executing the system for installing applications.
The display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch panel, or the like in some embodiments. The display is used for displaying information processed in the electronic device and for displaying a visualized user interface, such as an application menu interface, an application icon interface, etc. The components of the electronic device communicate with each other over a system bus.
From the foregoing, it will be appreciated that specific embodiments of the invention have been described herein for purposes of illustration, but that various modifications may be made without deviating from the scope of the invention. Those skilled in the art will appreciate that the operations and routines depicted in the flowchart steps or described herein may be varied in many ways. More specifically, the order of the steps may be rearranged, the steps may be performed in parallel, the steps may be omitted, other steps may be included, various combinations of routines may be made, or omitted. Accordingly, the invention is not to be restricted except in light of the attached claims.
Claims (17)
1. A three-dimensional model automatic generation method for a subway station comprises the following steps:
step 1, obtaining station parameters and room parameters;
step 2, generating outlines for arranging rooms according to the station parameters and the room parameters;
step 3, according to the type and the room priority of the station room and the regional priority of different regions of the outline, arranging the rooms in different regions in the generated outline;
step 4, acquiring spatial information of a passage for pipeline arrangement according to the room arrangement result and the station parameters in the step 3, wherein the passage is divided into a plurality of passage segments, and the spatial information comprises passage segment information for recording positions of the passage segments;
step 5, acquiring the end point information and the pipeline size information of each pipeline to be distributed;
step 6, according to the information obtained in the steps 4 and 5, pipeline arrangement is carried out, a subway station three-dimensional model is generated according to the arrangement results of the rooms and the pipelines,
wherein, step 2 includes:
step 2-1, calculating the longitudinal length of the station main body according to the following formula:
the longitudinal length of the station main body is equal to the span width of the longitudinal columns in the public area, multiplied by the span number of the longitudinal columns in the public area, the span of the deformation joints in the public area, the span number of the longitudinal columns in the equipment area, the span width of the longitudinal columns in the ventilator room and the longitudinal column distance of the air duct at the end head;
and 2-2, generating a contour for arranging rooms according to the longitudinal length of the station main body calculated in the step 2-1 and by combining the transverse column distance of the station and the effective platform length.
2. The method of claim 1, wherein the room priority is determined according to a room type among room parameters, which include a group room and an individual room, and a room attribute, and the zone priority is determined according to an air-conditioning partition of a station.
3. The method according to claim 2, wherein, in step 3, first, in the zone having a higher zone priority, the group room and the individual room are arranged in order of the room priority,
then, in the area with the lower zone priority, the group room and the individual room are arranged in order according to the room priority.
4. The method of claim 3, wherein the room properties indicate whether a room is a fixed location, has a neighboring relationship, is transregional, is adjustable in size,
where rooms with different room properties and room types have different room priorities.
5. The method according to claim 4, wherein when arranging the rooms capable of crossing in a certain area, the rooms capable of crossing are arranged in the area first, and then the rooms capable of crossing are arranged from other areas, wherein the rooms are alternately arranged in the areas according to the mode that the total size of the rooms is alternately advanced in the order of the size of the rooms.
6. The method of claim 1, wherein the station parameters are used to determine the overall station volume, including the size and location of each functional area and the dimensional parameters of the model,
the room parameters include number and location information of the rooms, and group relationship information of the rooms.
7. The method according to claim 1, wherein in step 3, after the room arrangement in a certain length direction is completed, the contour data calculated in step 2 is corrected by the actual length of each area occupied by the room.
8. The method of claim 1, wherein the step 4 comprises:
step 4-1, obtaining the contour line of the passage;
and 4-2, dividing the passage into passage segments according to the change of the section corresponding to the contour line of the passage.
9. The method of claim 8, wherein the step 4-1 comprises:
performing contour pairing according to the obtained contour lines to obtain the center line of each pair of contour lines, identifying the center line as a continuous line segment, dividing the continuous line segment into a straight segment and a turning segment,
each straight section is an independent minimum pipeline arrangement unit, in the unit, the arrangement positions of various pipelines are consistent,
wherein the step 4-2 comprises:
and (4) identifying the structure in the passage, including the identification of the beam column and the identification of the top structure, and recording the changed position in the section of each passage segment according to the identification result to form the section information of the passage segment.
10. The method of claim 1, wherein the step 6 comprises:
6-1, obtaining all possible pipeline paths of each pipeline, then respectively selecting one possible pipeline path for each pipeline, and obtaining a plurality of candidate pipeline arrangement schemes comprising the pipeline paths of each pipeline after permutation and combination, wherein the pipeline paths are represented by the passage segments through which the pipeline paths pass;
and 6-2, selecting one of the candidate pipeline arrangement schemes as an optimal pipeline arrangement scheme according to the pipeline information of the pipeline path in each candidate pipeline arrangement scheme on each passage segment through which the pipeline path passes.
11. The method of claim 1, wherein the endpoint information comprises: according to the information of the starting point and the end point of the pipelines classified by specialties and systems,
wherein the arrangement rule comprises:
each pipeline in the pipeline path is a starting point corresponding to one or more end points;
the starting point and the end point are located inside or outside the passage.
12. The method of claim 10, wherein the step 6-1 further comprises:
merging a plurality of end points of pipelines of the same system in the same passage segment into one end point;
merging the end points on two sides of the position of the starting point under the condition that the starting point and the end points coexist in the same path segment;
according to the above merging, the number of all possible pipeline paths of each pipeline is reduced.
13. The method of claim 10, wherein the step 6-2 comprises:
step 6-2-1, calculating the filling rate of each candidate pipeline arrangement scheme on each passage segment through which the candidate pipeline arrangement scheme passes, and further calculating to obtain the average filling rate and the filling rate variance of each candidate pipeline arrangement scheme;
step 6-2-2, calculating the pipeline length corresponding to each candidate pipeline arrangement scheme and the number of the passage segments;
and 6-2-3, selecting the optimal candidate pipeline arrangement scheme according to the calculation result of the step 6-2-1 and/or the step 6-2-2.
14. The method of claim 13, wherein the step 6-2-1 comprises:
step 6-2-1-1, calculating the area of each passage segment of the pipeline region of the candidate pipeline arrangement scheme and the total area;
step 6-2-1-2, calculating the occupied area of various filling devices in each passage segment of the candidate pipeline arrangement scheme;
and 6-2-1-3, calculating the filling rate, the average filling rate and the filling rate variance of the candidate pipeline arrangement scheme in each passage section according to the calculation results of the steps 6-2-1-1 and 6-2-1-2.
15. The method of claim 13, wherein the steps 6-2-3 comprise:
6-2-3-1, if the candidate pipeline arrangement scheme with the filling rate variance smaller than 0.5 exists, selecting the candidate pipeline arrangement scheme with the minimum pipeline length or the maximum average filling rate as the optimal pipeline arrangement scheme; or
And 6-2-3-2, if the candidate pipeline arrangement scheme with the filling rate variance smaller than 0.5 does not exist, selecting the candidate pipeline arrangement scheme with the smallest filling rate variance as the optimal pipeline arrangement scheme.
16. The method of claim 10, further comprising:
and 6-3, determining the position of each pipeline in the optimal pipeline arrangement scheme on the section of each passage segment through which the pipeline passes.
17. The method of claim 16, the step 6-3 comprising:
6-3-1, determining the passage segment with the highest filling rate in the passage segments passed by the optimal pipeline arrangement scheme;
6-3-2, determining the position of each pipeline in the passage segment with the highest filling rate on the section;
and 6-3-3, sequentially determining the position of each pipeline in other passage segments on the cross section according to the position determined in the step 6-3-2 and the descending order of the filling rate.
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| CN109063382B (en) * | 2018-09-17 | 2019-09-27 | 江苏舒适云信息技术有限公司 | A kind of room ground heating pipe designing system |
| CN110442892B (en) * | 2019-04-10 | 2022-10-21 | 南京五视界网络科技有限公司 | Hotel guest room layer plane automatic arrangement method |
| CN110968905B (en) * | 2019-11-27 | 2023-08-01 | 贝壳找房(北京)科技有限公司 | House space area allocation method and device, storage medium and electronic equipment |
| CN111080753A (en) * | 2019-12-19 | 2020-04-28 | 广州新科佳都科技有限公司 | Station information display method, device, equipment and storage medium |
| CN113158281B (en) * | 2020-01-23 | 2023-06-16 | 久瓴(上海)智能科技有限公司 | Pipeline arrangement model generation method and device, computer equipment and storage medium |
| CN111475878B (en) * | 2020-03-16 | 2022-03-15 | 青岛腾远设计事务所有限公司 | Method and device for generating ground depot anti-collision plate based on BIM technology and terminal |
| CN113158287A (en) * | 2021-01-28 | 2021-07-23 | 广州地铁设计研究院股份有限公司 | BIM-based subway station room arrangement verification method and device |
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| CN113987636A (en) * | 2021-10-20 | 2022-01-28 | 珠海新势力创建筑设计有限公司 | High-rise residential first-floor air shaft generation method based on revit platform |
| CN116451332B (en) * | 2023-06-20 | 2023-10-27 | 中国铁路设计集团有限公司 | Quick processing method for main pipe of comprehensive pipeline |
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