CN115618543A - Automatic drawing method, system, storage medium and equipment for room drawing for electromechanical equipment - Google Patents
Automatic drawing method, system, storage medium and equipment for room drawing for electromechanical equipment Download PDFInfo
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Abstract
The invention relates to the technical field of building electromechanical design, and discloses an automatic drawing method for a room drawing for electromechanical equipment, which comprises the following steps: s1, obtaining the outline of each equipment group; s2, acquiring a topological relation among the equipment groups; s3, acquiring a configurable area of the equipment group; s4, partitioning the machine room according to the topological relation among the equipment groups, and performing priority arrangement on each partition according to the sequence from incoming lines to outgoing lines; s5, sequentially placing the equipment groups into the machine room according to the outlines of the equipment groups and the priorities by a two-dimensional boxing method to obtain a sample space for arrangement of a plurality of machine room equipment; s6, connecting the equipment groups to obtain pipeline connection, and obtaining an electromechanical arrangement scheme comprising equipment arrangement and pipeline connection; and S7, optimizing the electromechanical arrangement scheme obtained in the S6 according to different evaluation indexes, and selecting a required optimal arrangement scheme to obtain a machine room arrangement drawing. The invention also provides a corresponding system, a storage medium and a device.
Description
Technical Field
The invention relates to the technical field of building electromechanical design, in particular to an automatic drawing method, system, storage medium and equipment for a house drawing of electromechanical equipment.
Background
The architectural design is a general term for design activities including professions such as architecture, structure and electromechanics, wherein the electromechanical design drawings comprise design drawings of a plurality of professions such as water supply and drainage, heating and ventilation, electrical and intellectualization, each profession comprises drawings for arrangement of electromechanical equipment of a machine room, and the arrangement of the electromechanical equipment of the machine room mainly refers to equipment arrangement and pipeline arrangement drawings in the architecture. For example, in the electrical industry, the layout mainly refers to the layout of equipment and power pipelines of power transformation and distribution devices in various power transformation and distribution rooms, generator rooms and other rooms, the layout of a professional water supply and drainage room refers to the layout of various water pumps, water supply and drainage pipes and fire water pipes of various water pump rooms, the layout of a professional heating and ventilation room mainly refers to the layout of various equipment, various main cooling water pipes and freezing water pipes of an air conditioner main room, and the layout of an intelligent room mainly refers to the layout of various weak current rooms such as various monitoring rooms and network rooms in a building.
At present, the layout drawings of the equipment rooms are basically drawn manually, the layout schemes of the equipment rooms are judged mainly according to personal experience and thinking, the working efficiency is low due to the fact that the rationality of different layout schemes relates to a complicated calculation process, and in addition, all the scheme possibilities cannot be exhausted and arranged by a manual method, so that the optimal layout scheme is difficult to obtain.
Chinese patent (publication No. CN 105808856A) discloses a display method of electrical equipment wiring information, comprising: obtaining wiring information of a plurality of electrical devices, wherein the wiring information includes at least: device information of each electrical device and harness information between any two electrical devices; determining a display position of each electrical device according to wiring layout information and device information of each electrical device, wherein the wiring layout information is obtained by expanding a spatial structure of the plurality of electrical devices into a region-by-region division; displaying the wiring information of each electrical device on a two-dimensional drawing according to the display position of each electrical device; wherein the device information at least includes: a device type and a device number, wherein determining a display position of each electrical device according to the wiring layout information and the device information of each electrical device comprises: obtaining the wiring layout information, wherein the wiring layout information at least comprises a plurality of display areas; determining a display area to which each electrical device belongs according to the device type; and determining the display position of each electrical device in the display area according to the device number and the display area to which each electrical device belongs. The patent can only draw a connection diagram of electrical equipment, and cannot solve the problem of how to arrange the equipment in a specified machine room. How to arrange each equipment for a specified machine room to achieve high economy and rationality is a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a method, a system, a storage medium and equipment for automatically drawing a room drawing for electromechanical equipment, which can search an optimal scheme, greatly improve the efficiency of machine room arrangement and effectively ensure the economic rationality of the machine room arrangement scheme.
In order to achieve the purpose, the invention provides an automatic drawing method of a room drawing for electromechanical equipment, which comprises the following steps:
s1, acquiring the outline of each equipment group;
s2, acquiring a topological relation among the equipment groups;
s3, acquiring a configurable area of the equipment group;
s4, partitioning the arrangeable regions of the equipment groups according to the topological relation among the equipment groups, distributing the similar equipment groups in each partition, and performing priority arrangement on each partition according to the sequence from incoming lines to outgoing lines;
s5, sequentially placing the equipment groups into the machine room according to the outlines of the equipment groups and the priorities by a two-dimensional boxing method to obtain a sample space for arrangement of a plurality of machine room equipment;
s6, connecting the equipment groups to obtain pipeline connection, and obtaining an electromechanical arrangement scheme comprising equipment arrangement and pipeline connection;
and S7, optimizing the electromechanical arrangement scheme obtained in the S6 according to different evaluation indexes, and selecting a required optimal arrangement scheme to obtain a machine room arrangement drawing.
Preferably, in step S1, the profile of the equipment group includes an external profile formed by external dimensions of the single or multiple pieces of equipment and a reserved inspection distance, and the reserved inspection distance of the external profile formed by the external dimensions of the single or multiple pieces of equipment is expanded to the boundary profile of the equipment group.
Preferably, in step S5, when each device group is arranged, the boundary contour of the device group may not overlap with the wall; the boundary contour of a device group may overlap with the boundary contour of an adjacent device group, but the boundary contour of a device group may not overlap with the outline contour of an adjacent device group.
As a preferred scheme, the electromechanical equipment room is a power transformation and distribution room, and in the step S1, the equipment group comprises an incoming line cabinet, a high-voltage cabinet, a transformer, a low-voltage cabinet and an outgoing line cabinet; in the step S2, the incoming line cabinet, the high-voltage cabinet, the transformer, the low-voltage cabinet and the outgoing line cabinet are sequentially connected; in step S3, the machine room is divided into a wire inlet area, a high-voltage cabinet area, a transformer area, a low-voltage cabinet area and a wire outlet area; in step S5, corresponding equipment groups are sequentially placed in the wire inlet area, the high-voltage cabinet area, the transformer area, the low-voltage cabinet area and the wire outlet area; or, the electromechanical device room is an air conditioner main room, and in the step S1, the equipment group comprises a cooling pump, an air conditioner main machine and a freezing pump; in the step S2, the cooling pump, the air conditioner host and the refrigerating pump are sequentially connected; in step S3, the equipment group can be arranged into a cooling pump area, an air conditioner main machine area and a freezing pump area; in step S5, corresponding equipment groups are sequentially placed in the cooling pump area, the air conditioner host area and the refrigerating pump area; or, the electromechanical room is a water pump room, and in the step S1, the equipment group comprises a living water tank, a disinfection box and a living water pump; in the step S2, the living water tank, the disinfection box and the living water pump are sequentially connected; in step S3, the arrangeable areas of the equipment group are divided into a living water tank area, a disinfection tank area and a living water pump area; in step S5, corresponding equipment groups are sequentially placed in the living water tank area, the disinfection tank area and the living water pump area.
Preferably, in step S6, the connection method includes a direct connection method, a path connection method, and a broken line connection method.
Preferably, in step S7, the method for searching for the optimal placement solution uses a D algorithm and/or an F algorithm and/or an a search algorithm.
As a preferred scheme, in step S7, a machine room layout model is optimally established by using unit price indexes and/or comprehensive indexes, and a genetic algorithm is adopted to solve the machine room layout model.
The invention also provides an automatic drawing system for the room drawing for the electromechanical device, which comprises the following steps:
the contour acquisition module is used for acquiring the contour of each equipment group;
the topological relation acquisition module is used for acquiring the topological relation among the equipment groups;
the equipment group arrangeable region acquisition module is used for acquiring the equipment group arrangeable region;
the machine room partition module is used for partitioning the machine room according to the topological relation among the equipment groups, distributing the same equipment groups in all partitions, and performing priority arrangement on all partitions according to the sequence from incoming lines to outgoing lines;
the equipment arrangement module is used for placing the equipment groups into the machine rooms in sequence according to the priority by a two-dimensional boxing method according to the outlines of the equipment groups to obtain sample spaces for arranging a plurality of pieces of equipment in the machine rooms;
the connecting module is used for connecting the equipment groups to obtain pipeline connection;
and the optimizing module is used for obtaining an equipment arrangement scheme from the equipment arrangement module and selecting a required optimal arrangement scheme from the pipeline connection scheme obtained from the connection module according to different evaluation indexes, so that a machine room arrangement drawing is obtained.
In addition, the present invention also provides a computer storage medium storing a computer program, which, when executed by a processor, causes the processor to execute the above method.
Furthermore, the present invention also provides a computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the above method.
Compared with the prior art, the invention has the beneficial effects that:
after the contour, the topological relation and the layout area of the equipment group are obtained, the contour of each equipment group is placed into the plane contour of the machine room by a two-dimensional boxing method, and the equipment group layout drawing of the electromechanical equipment room is obtained. According to the invention, the machine room is partitioned according to the topological relation of the equipment groups, then the equipment groups are arranged by adopting a two-dimensional boxing method, and corresponding similar equipment is sequentially placed in each partition by adopting the two-dimensional boxing method, so that the efficiency can be improved. According to the invention, all possible schemes of the machine room arrangement are firstly obtained, and then optimization is carried out according to the required indexes, so that the optimal arrangement scheme can be obtained, and the corresponding machine room arrangement drawing is obtained.
Drawings
Fig. 1 is a flowchart of a method for automatically drawing a house drawing for electromechanical equipment according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the outline and boundary profile of the device group according to the embodiment of the present invention.
Fig. 3 is a schematic illustration of the wiring points and the direction of the outgoing lines of an apparatus of an embodiment of the invention.
Fig. 4 is a schematic diagram of the device topology relationship of the power transformation and distribution room according to the embodiment of the present invention.
Fig. 5 is a schematic diagram of the device topology relationship of the air-conditioning main room according to the embodiment of the present invention.
Fig. 6 is a schematic diagram of the topological relation of the equipment of the water pump room according to the embodiment of the present invention.
FIG. 7 is a schematic diagram of gridding the layout area of the device group according to the embodiment of the present invention.
FIG. 8 is a schematic illustration of an apparatus assembly bin sequence of an embodiment of the present invention.
FIG. 9 is a schematic view of an apparatus assembly kit according to an embodiment of the invention.
Fig. 10 is a schematic diagram of the boundary contour line coincidence of the device groups according to the embodiment of the present invention.
Fig. 11 is a schematic diagram of a direct wire bonding method of an embodiment of the present invention.
FIG. 12 is a schematic diagram of a path routing method according to an embodiment of the present invention.
FIG. 13 is a schematic illustration of a wire-break method according to an embodiment of the present invention.
Fig. 14 is a schematic diagram of direct wiring after the device of the embodiment of the present invention is arranged.
Fig. 15 is a schematic diagram of a routing line (cable trench) after deployment of the apparatus of an embodiment of the present invention.
FIG. 16 is a schematic illustration of a polyline connection (busbar) after deployment of the apparatus of an embodiment of the present invention.
Fig. 17 is a final drawing of the change and distribution room output of the embodiment of the present invention.
Fig. 18 is an exemplary diagram of the output of the heating ventilation machine room and the water supply and drainage machine room according to the embodiment of the invention.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example one
As shown in fig. 1, a method for automatically drawing a room drawing for an electromechanical device according to a preferred embodiment of the present invention includes the following steps:
s1, obtaining the outline of each equipment group;
s2, acquiring a topological relation among equipment groups;
s3, acquiring an arrangeable area of the equipment group;
s4, partitioning the arrangeable regions of the equipment groups according to the topological relation among the equipment groups, distributing the similar equipment groups in each partition, and performing priority arrangement on each partition according to the sequence from incoming lines to outgoing lines;
s5, placing the equipment groups into the machine room according to the outlines of the equipment groups and the priorities by a two-dimensional boxing method to obtain sample spaces for arrangement of a plurality of machine room equipment;
s6, connecting the equipment groups to obtain pipeline connection, and obtaining an electromechanical arrangement scheme comprising equipment arrangement and pipeline connection;
and S7, optimizing the electromechanical arrangement scheme obtained in the S6 according to different evaluation indexes, and selecting a required optimal arrangement scheme to obtain a machine room arrangement drawing.
In this embodiment, after the outlines, the topological relations, and the layout areas of the equipment groups are obtained, the outlines of the equipment groups are placed in the plane outline of the machine room by a two-dimensional boxing method, so as to obtain an equipment group layout drawing of the electromechanical equipment room. According to the embodiment, the machine room is partitioned according to the topological relation of the equipment groups, then the equipment groups are arranged by adopting a two-dimensional boxing method, corresponding similar equipment is sequentially placed in each partition by adopting the two-dimensional boxing method, and the efficiency can be improved. In this embodiment, all possible schemes for machine room arrangement are obtained first, and then optimization is performed according to the required indexes, so that an optimal arrangement scheme can be obtained, and a corresponding machine room arrangement drawing is obtained.
In step S1, the profile of the equipment group includes an external profile formed by the external dimensions of the single or multiple pieces of equipment and a reserved inspection distance, and the reserved inspection distance of the external profile formed by the external dimensions of the single or multiple pieces of equipment is expanded to the boundary profile of the equipment group. The periphery of a single device or a plurality of devices has a device maintenance and repair distance requirement, the repair distance is increased outwards from the outline of the device group, the outline is expanded to be the boundary outline of the device group, and the requirement that a certain space is reserved around the actual device for repair and use is met. The boundary contour of the device group is a virtual contour. Further, in step S1, the method further includes obtaining device wiring points and a wire outlet direction of the device group.
In step S2, the topological relation of the equipment is obtained according to the properties of the electromechanical house. Fig. 4, 5 and 6 are schematic topological diagrams of a power distribution and distribution main room of an air conditioner and a water pump room respectively.
When the electromechanical equipment room is a power transformation and distribution room, in step S1, the equipment group comprises an incoming line cabinet, a high-voltage cabinet, a transformer, a low-voltage cabinet and an outgoing line cabinet; in the step S2, the incoming line cabinet, the high-voltage cabinet, the transformer, the low-voltage cabinet and the outgoing line cabinet are sequentially connected; in step S3, the arrangeable area of the equipment group is divided into an incoming line area, a high-voltage cabinet area, a transformer area, a low-voltage cabinet area and an outgoing line area; in step S5, corresponding equipment groups are sequentially placed in the wire inlet area, the high-voltage cabinet area, the transformer area, the low-voltage cabinet area and the wire outlet area;
when the electromechanical equipment room is an air-conditioning main room, in step S1, the equipment group includes a cooling pump, an air-conditioning main and a freezing pump; in the step S2, the cooling pump, the air conditioner host and the refrigerating pump are sequentially connected; in step S3, the equipment group can be arranged into a cooling pump area, an air conditioner main machine area and a freezing pump area; in step S5, corresponding equipment groups are sequentially placed in the cooling pump area, the air conditioner host area and the refrigerating pump area;
when the electromechanical house is a water pump house, in step S1, the equipment group comprises a living water tank, a disinfection box and a living water pump; in the step S2, the living water tank, the disinfection box and the living water pump are sequentially connected; in step S3, the arrangeable areas of the equipment group are divided into a living water tank area, a disinfection tank area and a living water pump area; in step S5, corresponding equipment groups are sequentially placed in the living water tank area, the disinfection tank area and the living water pump area.
In step S3, after the arrangeable region of the device group is acquired, the obtained plan is gridded. The equipment arrangement area in the gridding machine room can control the number of samples when the arrangement scheme is generated, and the relationship between the size of the grid and the size of the samples when the equipment is randomly arranged and the operation time is large.
In step S5, when each device group is arranged, the boundary contour of the device group may not overlap with the wall; the boundary contour of a device group may overlap with the boundary contour of an adjacent device group, but the boundary contour of a device group may not overlap with the outline contour of an adjacent device group. That is, when the device group is arranged, the boundary contour of the device group has two functions, (1) when the boundary contour touches a wall structure, the boundary contour cannot be overlapped with the wall; (2) If the other equipment group is arranged, the boundary contour of the other equipment group can be overlapped, but the contour of the other equipment group can not be overlapped, so that the condition that two actually arranged equipment groups share the service passage can be met, and the problem of the service passage is reduced as much as possible.
In step S6, the wiring method includes a straight wiring method, a path wiring method, and a broken wiring method. The direct wiring method is to connect the wiring points of two devices by straight line segments as shown in fig. 11. The route connection method is that a vertical line is made from the device wiring point to the route line, the route along the route line is moved to another device wiring point and the vertical point of the route line to penetrate out, and then the route is moved to another device, as shown in fig. 12. The broken line connection method is that according to the connection point and the outgoing line direction of the connected equipment, the position relation of the two equipment and the included angle between the outgoing line directions, the route used for connection is determined; the included angle relationship is divided into: same direction (0 degrees), acute angle (< 90 degrees), perpendicular (= 90 degrees), obtuse angle (> 90 degrees and less than 180 degrees), reverse (= 180 degrees) 5 cases, as shown in fig. 13. In specific implementation, if the connection line is used as the preliminary judgment of the scheme, the connection line can be connected by adopting a direct connection method, if the scheme needs to be subjected to fine judgment, the connection line is drawn by combining actual materials represented by the connection line, and if the actual representation of the connection line is a cable, a path connection method is adopted; if the connection line is actually represented as a bus duct or a water pipe, a broken line connection method is adopted.
In step S7, the evaluation index includes a unit price index and a comprehensive index. The actual outline area of the outsourcing of the unit price index is minimum, the total line is shortest, the total cost is lowest, the transmission resistance of the total line is lowest, and the like. The composite index is composed of two or more unit price indices, and the weight of each unit price index can be set. And in the multiple arrangement schemes obtained in the step S6, obtaining the corresponding arrangement scheme according to the required evaluation index to obtain an output machine room arrangement drawing.
In addition, in step S7, the optimal placement solution searching method employs a D algorithm and/or an F algorithm and/or an a search algorithm. After obtaining N device layout scheme sample spaces in step S6, the search may be performed by a depth search algorithm or a breadth traversal algorithm, and if the sample size is too large, the calculation may be performed by some fast ranking search algorithms. Search algorithms such as the D algorithm, the F algorithm, the a-algorithm, and the like increase the operation speed. In addition, a machine room arrangement model can be optimally established according to unit price indexes and/or comprehensive indexes, and a genetic algorithm is adopted to solve the machine room arrangement model.
Example two
The drawing of the power transformation and distribution room in the electromechanical equipment room is taken as an example, and the drawing of the power transformation and distribution room is explained in the embodiment.
The arrangement of the equipment machine room (heating ventilation, water and electricity) mainly comprises the arrangement of equipment and the arrangement of pipelines, wherein the pipelines are connecting lines between the equipment, and under the condition that the equipment is fixed in a selected mode, the positions of the equipment arrangement have large influence on the pipelines, and the whole scheme also has certain influence on the manufacturing cost and the operating cost of the whole electromechanical system in the future.
A transformation and distribution room is one of common main equipment rooms in buildings, and a typical comprehensive transformation and distribution room comprises equipment such as a high-voltage power distribution cabinet, a transformer cabinet and a low-voltage power distribution cabinet. The invention is explained further below mainly in connection with the case of a distribution room.
The automatic drawing method for the drawing of the power transformation and distribution room comprises the following steps:
s1, obtaining the outline, the equipment wiring points and the outgoing line direction of each equipment group, wherein the outline of each equipment group comprises the outline formed by the outline size of single or multiple pieces of equipment and the reserved overhaul distance, and the reserved overhaul distance of the outline formed by the outline size of the single or multiple pieces of equipment is expanded to be the boundary outline of the equipment group. As shown in fig. 2. The computer lab of this embodiment is for becoming the distribution room, and equipment unit is including inlet wire cabinet, high-voltage board, transformer, low-voltage cabinet and outlet wire cabinet.
As shown in fig. 3, for the high voltage cabinet of a single device, the high voltage cabinet has a connection point thereon, which is used as an end point for connecting with other devices, and a wire outlet direction, which is generally perpendicular to the surface of the device and passes through the connection point.
S2, acquiring a topological relation among equipment groups; as shown in fig. 4, the topology relationship of the power transformation and distribution system is divided into 5 hierarchical relationships: 1. an inlet wire interlayer-A- >2, a high-voltage cabinet layer-B- >3, a transformer layer-C- >4, a low-voltage cabinet layer-D- >5 and an outlet wire interlayer. The incoming line cabinet, the high-voltage cabinet, the transformer, the low-voltage cabinet and the outgoing line cabinet are sequentially connected.
Wherein, each device group outline is provided with a device group boundary outline mentioned in the step S1.
As shown in fig. 4, the connection lines between the device layers are labeled An, bn, cn, dn, where n is the connection number.
Each level consists of a homogeneous set of devices. There is a connection line topological relationship between some devices of the device group of each hierarchy, as follows (coordinate point code in parentheses):
high-voltage board (outgoing line board) 1AH4 (pt 1) - > transformer T1 (pt 5) - > low-voltage board (incoming line board) 1AN1 (pt 9)
High-voltage cabinet (outgoing line cabinet) 1AH5 (pt 2) - > transformer T2 (pt 6) - > low-voltage cabinet (incoming line cabinet) 2AN1 (pt 10)
High-voltage board (outgoing line board) 1AH8 (pt 3) - > transformer T3 (pt 7) - > low-voltage board (incoming line board) 3AN1 (pt 11)
The high-voltage cabinet (outgoing cabinet) 1AH9 (pt 4) - > transformer T4 (pt 8) - > low-voltage cabinet (incoming cabinet) 4AN1 (pt 12).
And S3, acquiring an equipment group layout area, specifically a power transformation room plan, and meshing the equipment layout area in the machine room. This embodiment uses 100mm as a grid, as shown in FIG. 7.
And S4, partitioning the machine room according to the topological relation among the equipment groups, distributing the same equipment groups in each partition, and performing priority arrangement on each partition according to the sequence from incoming lines to outgoing lines. The machine room is divided into an incoming line area, a high-voltage cabinet area, a transformer area, a low-voltage cabinet area and an outgoing line area. Each partition corresponds to the hierarchy of step S2 described above.
And S5, placing the equipment groups into the machine room according to the outlines of the equipment groups and the priorities by a two-dimensional boxing method to obtain a sample space for arranging a plurality of pieces of machine room equipment. The two-dimensional binning method is to place a corresponding equipment group in each partition according to the priority of the partition. Namely, corresponding equipment groups are sequentially placed in a wire inlet area, a high-voltage cabinet area, a transformer area, a low-voltage cabinet area and a wire outlet area. Firstly, putting an incoming cabinet in an incoming area, then putting a high-voltage cabinet group in the high-voltage cabinet area, then putting a transformer group in the transformer area, then putting a low-voltage cabinet group in the low-voltage cabinet area, and finally putting an outgoing cabinet in an outgoing area. As shown in fig. 7.
The modules of the high-voltage cabinet equipment group layer are placed at the corner closest to the incoming line layer, then the modules of the transformer equipment group layer are placed next to each other, then the modules of the low-voltage cabinet equipment group layer are placed, each module is trial-installed in the horizontal direction and the vertical direction, if the modules exceed the boundary of a room, the arrangement is stopped, the next scheme arrangement is carried out, 8230, and the rest is done, and all feasible arrangement scheme sample spaces are obtained through traversal.
When the boundary contour touches a wall structure, the boundary contour cannot be overlapped with the wall; (2) If the device is arranged by touching another device group, the device can be overlapped with the boundary contour of the other device group and can not be overlapped with the outline of the other device group. Therefore, the condition that two actually arranged equipment sets share the maintenance channel can be met, and the problem of the maintenance channel is reduced as much as possible. As shown in fig. 9 and 10.
And S6, connecting the equipment groups to obtain pipeline connection, and obtaining an electromechanical arrangement scheme comprising equipment arrangement and pipeline connection.
Regarding the wiring between the devices: three methods can be used for wiring according to different pipeline attributes: 1) Direct wiring; 2) Connecting a route; 3) Connecting the fold lines; in this embodiment, the cables are connected by direct connection or path connection, and the bus and the pipeline are connected by broken lines.
In this embodiment, if the connection is used as the preliminary judgment of the scheme, the connection may be performed by using a direct connection method, if the scheme needs to be finely judged, the connection is drawn by combining the actual material of the connection representation, and if the actual representation of the connection is a cable, a path connection method is used; if the connection line is actually represented as a bus duct or a water pipe, a broken line connection method is adopted.
In the arrangement of the same machine room, different connection methods are selected according to different types of connection wires, for example, different connection methods are adopted for cables and water pipes in the same machine room.
And S7, optimizing the electromechanical arrangement scheme obtained in the S6 according to different evaluation indexes, and selecting a required optimal arrangement scheme to obtain a machine room arrangement drawing.
And drawing different connecting lines according to different attributes of the pipeline to obtain the lengths of all the connecting lines. And obtaining different overall single performance indexes of the whole sample space according to the connecting line length and different unit price indexes. And obtaining an optimal arrangement scheme of the overall comprehensive index according to the weights of different single indexes, thereby obtaining a machine room arrangement drawing.
The optimal scheme can be more specifically embodied as a scheme for generating a plurality of single indexes with the smallest equipment layout occupying area, the shortest total line, the lowest total cost, the smallest transmission resistance of the total line and the like, and a scheme for generating the optimal comprehensive index by inputting different weights can also be used.
1) Actual envelope area is minimal: after the arrangement, the actual overcladding area = overcladding length x overcladding width, as shown in fig. 9.
2) The shortest of the total lines: i.e. all links and min;
3) The total cost is lowest: obtaining the attribute (namely the cable specification) of each connecting line and the unit price of the line corresponding to the attribute, namely obtaining the total line cost;
4) The transmission resistance of the total line is lowest.
Taking the electrical system as an example, the line loss
Where I is the current a passed by the line, R is the resistance (impedance) ohm of the line, and T is the time of passing the current. Wherein the current may be obtained from the power of the load, and R is obtained from the following formula:
where ρ isIs the cable material impedance, L is the cable length, S is the cable cross-section (obtained from the cable specification).
Taking an air conditioning system as an example, the water system resistance of an air conditioner includes on-way resistance and local resistance. On-way resistance is also called frictional resistance
It can be calculated as follows:
. The local resistance is the energy loss caused by friction and vortex when various fittings such as elbows, tees, valves, etc. are encountered during the water flow in the pipe, and this energy loss is called local pressure loss, and is conventionally referred to as local resistance. Local resistance
Can be calculated as follows:
。
the on-way resistance is proportional to the pipe length l and inversely proportional to the pipe diameter d. The local resistance is mainly related to the fittings, such as elbows, through which the pipes pass, so that different machine room arrangements and pipe arrangements can be obtained according to different machine room arrangement schemes and pipe paths. The water pipe network arrangement is made to select a scheme with lower resistance.
And S6, connecting the equipment groups to obtain pipeline connection, and obtaining an electromechanical arrangement scheme comprising equipment arrangement and pipeline connection.
And S7, optimizing the electromechanical arrangement scheme obtained in the S6 according to different evaluation indexes, and selecting a required optimal arrangement scheme to obtain a machine room arrangement drawing.
In this embodiment, an optimal arrangement scheme can be quickly searched by using the search algorithm of a.
The a ″ (a-Star) algorithm is an efficient direct search method for solving shortest paths in static networks. The formula is expressed as: f (n) = g (n) + h (n)
Where f x (n) is the minimum cost estimate from the initial state to the target state via the states, g x (n) is the minimum cost from the initial state n in the state space, and h x (n) is the minimum estimated cost for the path from the state n to the target state.
Combining the solution thought in the embodiment: in the process of boxing the outlines of the equipment groups, the position of each equipment group outline moves to cause the length change of a plurality of connecting lines, the connecting lines move towards the direction of reducing the length of the connecting lines, and the scheme of increasing the length is eliminated.
In addition, the embodiment may also adopt a method of randomly generating an arrangement scheme by using an optimization algorithm such as a genetic algorithm, screening out a sample set meeting conditions, and searching for an optimal scheme through a neural network training model:
the genetic algorithm is a simulation of biogenetic, in the algorithm, a population is initialized, each chromosome individual in the population is a solution, and the quality of the solution is measured by adaptability. And the selection, mutation and cross operations are carried out on the components to find the optimal solution, and the main steps are as follows:
(1) Initializing a population and evaluating the fitness of an individual corresponding to each chromosome;
(2) Selecting, crossing and mutating to generate a new population;
(3) Evaluating the adaptive value of each individual, and if the adaptive value meets the requirement or reaches the maximum cycle number; otherwise, repeating (2) and continuously generating new populations.
In this embodiment:
1. determination of violation degree value: the larger the constraint violation degree is if the longer the connection is, and the larger the actual outsourcing area occupied by the equipment in the machine room is, the larger the constraint violation degree is. And combining the calculated violation constraint degree values of the two constraints together to form a one-dimensional array, and obtaining an array representing all violation constraint degree values of the decision variables.
2. A calculation stage: generating a population chromosome matrix, decoding the initial population, calculating an objective function value of an initial population individual, calculating a serial number of a current generation optimal individual, starting evolution, and distributing fitness value fitness for each population. And finally, the population with the highest fitness is the optimal solution.
The randomly generated samples of the equipment room arrangement are placed in a neural network system for training, after a model is trained by a genetic algorithm, the model is deployed in a local computer or a server, and the optimal scheme of the room arrangement can be quickly found.
EXAMPLE III
In this embodiment, an automatic drawing system for a room drawing for electromechanical device, which implements the first embodiment or the second embodiment, includes:
the contour acquisition module is used for acquiring the contour of each equipment group;
the topological relation acquisition module is used for acquiring the topological relation among the equipment groups;
the device group arrangeable region acquisition module is used for acquiring a device group arrangeable region;
the machine room partition module is used for partitioning the machine room according to the topological relation among the equipment groups, distributing the same equipment groups in all partitions, and performing priority arrangement on all partitions according to the sequence from incoming lines to outgoing lines;
the equipment arrangement module is used for sequentially placing the equipment groups into the machine room according to the profiles and the priorities by a two-dimensional boxing method to obtain a sample space for arranging a plurality of pieces of equipment in the machine room;
the connecting module is used for connecting the equipment groups to obtain pipeline connection;
and the optimizing module is used for selecting a required optimal arrangement scheme from the equipment arrangement scheme obtained from the equipment arrangement module and the pipeline connection scheme obtained from the connecting module according to different evaluation indexes, so as to obtain a machine room arrangement drawing.
Example four
The present embodiment provides a computer storage medium storing a computer program, which when executed by a processor causes the processor to perform the method of embodiment one or embodiment two.
EXAMPLE five
The present embodiment provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer program, when executed by the processor, causes the processor to execute the method of the first or second embodiment.
To sum up, the embodiment of the invention provides an automatic drawing method for a drawing of a room for electromechanical equipment, which includes the steps of obtaining the outlines and topological relations of equipment groups and the layout areas of the equipment groups, and then putting the outlines of the equipment groups into the plane outlines of the room through a two-dimensional boxing method to obtain the layout drawing of the equipment groups of the room for electromechanical equipment. According to the invention, the machine room is partitioned according to the topological relation of the equipment groups, then the equipment groups are arranged by adopting a two-dimensional boxing method, and corresponding similar equipment is sequentially placed in each partition by adopting the two-dimensional boxing method, so that the efficiency can be improved. According to the invention, all possible schemes of machine room arrangement are obtained, and then optimization is carried out according to the required indexes, so that the optimal arrangement scheme can be obtained, and the corresponding machine room arrangement drawing is obtained. In addition, the embodiment of the invention also provides a system, a storage medium and equipment for realizing the method.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for automatically drawing a drawing of a room for electromechanical equipment is characterized by comprising the following steps:
s1, obtaining the outline of each equipment group;
s2, acquiring a topological relation among the equipment groups;
s3, acquiring an arrangeable area of the equipment group;
s4, partitioning the arrangeable regions of the equipment groups according to the topological relation among the equipment groups, distributing the similar equipment groups in each partition, and performing priority arrangement on each partition according to the sequence from incoming lines to outgoing lines;
s5, sequentially placing the equipment groups into the machine room according to the outlines of the equipment groups and the priorities by a two-dimensional boxing method to obtain a sample space for arrangement of a plurality of machine room equipment;
s6, connecting the equipment groups to obtain pipeline connection, and obtaining an electromechanical arrangement scheme comprising equipment arrangement and pipeline connection;
and S7, optimizing the electromechanical arrangement scheme obtained in the S6 according to different evaluation indexes, and selecting a required optimal arrangement scheme to obtain a machine room arrangement drawing.
2. The automatic drawing method for a house drawing for electromechanical equipment according to claim 1, wherein in step S1, the outline of the equipment group comprises an outline formed by the outline dimensions of the single or multiple pieces of equipment and a reserved overhaul distance, and the reserved overhaul distance of the outline formed by the outline dimensions of the single or multiple pieces of equipment is expanded to be a boundary outline of the equipment group.
3. The automatic drawing method of a house drawing for an electromechanical device according to claim 2, wherein in step S5, when each device group is arranged, the boundary contour of the device group does not overlap with the wall; the boundary contour of a device group may overlap with the boundary contour of an adjacent device group, but the boundary contour of a device group may not overlap with the outline contour of an adjacent device group.
4. The automatic drawing method of a room drawing for electromechanical equipment according to claim 1, wherein the room for electromechanical equipment is a power transformation and distribution room, and in step S1, the equipment group comprises an incoming line cabinet, a high voltage cabinet, a transformer, a low voltage cabinet and an outgoing line cabinet; in the step S2, the incoming line cabinet, the high-voltage cabinet, the transformer, the low-voltage cabinet and the outgoing line cabinet are sequentially connected; in step S3, the arrangeable area of the equipment group is divided into an incoming line area, a high-voltage cabinet area, a transformer area, a low-voltage cabinet area and an outgoing line area; in step S5, corresponding equipment groups are sequentially placed in the wire inlet area, the high-voltage cabinet area, the transformer area, the low-voltage cabinet area and the wire outlet area;
or, the electromechanical equipment room is an air conditioner main room, and in the step S1, the equipment group comprises a cooling pump, an air conditioner main machine and a freezing pump; in the step S2, the cooling pump, the air conditioner host and the refrigerating pump are sequentially connected; in step S3, the equipment group can be arranged into a cooling pump area, an air conditioner main machine area and a freezing pump area; in step S5, corresponding equipment groups are sequentially placed in the cooling pump area, the air conditioner host area and the refrigerating pump area;
or, the electromechanical room is a water pump room, and in the step S1, the equipment group comprises a living water tank, a disinfection box and a living water pump; in step S2, the living water tank, the disinfection box and the living water pump are sequentially connected; in step S3, the arrangeable area of the equipment group is divided into a living water tank area, a disinfection tank area and a living water pump area; in step S5, corresponding equipment groups are sequentially placed in the living water tank area, the disinfection tank area and the living water pump area.
5. The automatic drawing method of a house drawing for an electromechanical device according to claim 1, wherein in step S6, the wiring method includes a direct wiring method, a path wiring method, and a broken line wiring method.
6. The automatic drawing method for a housekeeping drawing for an electromechanical device according to claim 1, wherein in step S7, the search method for the optimal placement solution employs a D algorithm and/or an F algorithm and/or an a search algorithm.
7. The automatic drawing method of a room drawing for electromechanical equipment according to claim 1, wherein in step S7, a room layout model is optimally established by using a unit price index and/or a comprehensive index, and the room layout model is solved by using a genetic algorithm.
8. The utility model provides an automatic drawing system of electromechanical device with room drawing which characterized in that includes:
the contour acquisition module is used for acquiring the contour of each equipment group;
the topological relation acquisition module is used for acquiring the topological relation among the equipment groups;
the device group arrangeable region acquisition module is used for acquiring a device group arrangeable region;
the machine room partition module is used for partitioning the machine room according to the topological relation among the equipment groups, distributing the same equipment groups in all partitions, and performing priority arrangement on all partitions according to the sequence from incoming lines to outgoing lines;
the equipment arrangement module is used for placing the equipment groups into the machine rooms in sequence according to the priority by a two-dimensional boxing method according to the outlines of the equipment groups to obtain sample spaces for arranging a plurality of pieces of equipment in the machine rooms;
the connecting module is used for connecting the equipment groups to obtain pipeline connection;
and the optimizing module is used for obtaining an equipment arrangement scheme from the equipment arrangement module and selecting a required optimal arrangement scheme from the pipeline connection scheme obtained from the connection module according to different evaluation indexes, so that a machine room arrangement drawing is obtained.
9. A computer storage medium, in which a computer program is stored which, when executed by a processor, causes the processor to carry out the method of any one of claims 1 to 7.
10. A computer device comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the method of any one of claims 1 to 7.
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