CN109766601B - Computer aided drawing method and device for electric piping - Google Patents

Abstract

The invention provides a computer aided drawing method and a computer aided drawing device for an electric piping, wherein the method comprises the following steps: acquiring cable information, floor information, matching relation between the outer diameter of the cable and the specification of a distribution pipe, pipe opening distance information relative to the floor, and matching relation between the outer diameter of the distribution pipe and the thickness of the floor, wherein the cable information comprises cable engineering attributes; determining the outer diameter of the tubing according to the matching relation between the outer diameter of the cable and the specification of the tubing and the cable information; determining a coordinate value of a fixed point of the pipe orifice in a two-dimensional plane; and automatically laying to form the three-dimensional electric distribution pipe according to the pipe orifice fixed point coordinate value, the pipe orifice distance information of the relative floor, the floor information, the distribution pipe outer diameter and the matching relation between the distribution pipe outer diameter and the floor thickness. Through the scheme, the design efficiency of the three-dimensional piping can be improved.

Description

Computer aided drawing method and device for electric piping

Technical Field

The invention relates to the technical field of electricity, in particular to a computer-aided drawing method and device for an electric piping.

Background

Currently, with the widespread application of CAD (Computer Aided Design) technology in electrical engineering Design, three-dimensional CAD Design has received increasing attention and importance due to its unique features and advantages.

The computer aided technology of electric speciality has many products or design platforms, some of which can assist in completing the design of electric screens, platforms, boxes and cabinets, and logic or principle wiring diagrams, and can automatically generate cable meters and wiring tables and equipment statistical functions. In addition, the other arrangement platforms can assist in completing the design of cable bridges and cable laying, realize the matching of the size of the bridge and the amount of the laid cables, automatically count the using amount of the bridge and the cables, and perform laying path construction guidance and other functions. The CAD software can be well applied to the metallurgical field. By using the technologies, important but only partial design contents of the electrical profession can be accurately and efficiently completed.

The electrical profession also has nothing to do with CAD techniques, such as piping design. The method is still used for manual tubing on a two-dimensional AutoCad (Autodesk Computer aid Design) platform, has no intelligent auxiliary function including symbol drawing, labeling and statistics, and is difficult to ensure the Design quality and the statistical accuracy.

The electric piping functions to guide a construction unit to run a cable from a cable tray or other facility to an electric device or a signal detecting element, and is characterized by a short distance at the end of the cable run. In order to ensure the normal sequence of production, the cable path to the mechanical equipment needs to be properly concealed, or the cable is laid in a floor, or laid under the floor, or laid underground, or laid along corners, and the like, so that the cable can be reliably and safely laid to the cable terminal from a cable bridge or other facilities without influencing the production environment.

If a manual piping mode is still used on the three-dimensional platform, the complexity of three-dimensional operation far exceeds that of the two-dimensional platform, switching and rotation of various views are carried out in order to capture a proper position coordinate, so that the design efficiency is lower, the time required by design reaches more than 3 times of that of a traditional CAD two-dimensional design tool (such as AtuoCad), the design progress of electrical professional engineering is severely restricted, a three-dimensional piping design application module is urgently required to be developed, the efficiency is improved, the digital advantage of the three-dimensional platform can be exerted, the intelligent design is realized, the integral design level is improved, and the purpose of improving the design quality is achieved.

In a metallurgical plant, a large amount of electric equipment and a large amount of cables are used, and the reliability of cable laying is particularly important. A large number of pipe distribution designs aim to solve the problems that when cables are reliably laid on electric equipment, the cleanness of a room and the smoothness of a maintenance channel cannot be influenced.

At present, the design method of the three-dimensional piping is to design the piping by manual drawing, specification checking and pipe diameter selecting, marking and counting in the three-dimensional CAD. Other problems are:

(1) The electrical two-dimensional graph meeting the requirements can not be cut by directly using a graph cutting tool carried by the three-dimensional CAD platform. The three-dimensional piping model and the two-dimensional map are still required to be designed separately at present. The operation links are multiple, time-consuming, high in error probability and lack of automatic functions;

(2) The positioning of the pipe orifice of the piping needs to manually capture a positioning point in a three-dimensional CAD view, but the point captured in the way is usually only a reference point in a certain area of the positioning point of the pipe orifice, and subsequent manual calculation and manual adjustment are needed to finally determine the positioning point, otherwise, the collision with the existing three-dimensional model occurs. The operation is complicated, the time is consumed, and the design efficiency is low;

(3) And manually recording and searching the serial number of the cable for pipe orifice labeling, and manually counting the material quantity. Labeling is slow and error is easy to occur.

The checking personnel also need to check a large number of cables with different models and specifications according to the drawn drawing. The whole piping design process consumes much time, and is simple, large in repeated labor amount and low in efficiency.

Disclosure of Invention

Accordingly, the present invention is directed to a computer aided drawing method and apparatus for electrical piping, which solves one or more of the problems of the prior art.

In order to achieve the purpose, the invention adopts the following scheme:

in an embodiment of the present invention, a computer aided drawing method for electrical piping includes:

acquiring cable information, floor information, matching relation between the outer diameter of the cable and the specification of a distribution pipe, pipe opening distance information relative to the floor, and matching relation between the outer diameter of the distribution pipe and the thickness of the floor, wherein the cable information comprises cable engineering attributes;

determining the outer diameter of the tubing according to the matching relation between the outer diameter of the cable and the specification of the tubing and the cable information; determining a coordinate value of a fixed point of the pipe orifice in a two-dimensional plane;

and automatically laying to form the three-dimensional electric distribution pipe according to the pipe orifice fixed point coordinate value, the pipe orifice distance information of the relative floor, the floor information, the distribution pipe outer diameter and the matching relation between the distribution pipe outer diameter and the floor thickness.

In an embodiment of the present invention, a computer device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method of the above-mentioned embodiments when executing the program.

In an embodiment of the invention, a computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of the above-mentioned embodiment.

The computer-aided drawing method, the computer equipment and the computer-readable storage medium for the electric piping can automatically lay and generate the three-dimensional electric piping through computer-aided design. Furthermore, the accurate positioning of the piping by a designer can be assisted through reference point correction; by adding the piping attributes, the two-dimensional drawing can be automatically completed, and the attributes of the two-dimensional symbols are stored in the two-dimensional drawing; the two-dimensional symbol attribute can be extracted, and automatic labeling is completed. Therefore, decision-making basis can be provided timely on the three-dimensional design platform, designers are liberated from tedious, simple and repeated labor, design rule information, design process information and the like are arranged in the module database, design is smoothly completed smoothly according to design requirements, and design efficiency and quality are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts. In the drawings:

FIG. 1 is a flow chart of a computer aided drawing method for electrical piping according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart illustrating a method for determining coordinates of a nozzle fixed point in a two-dimensional plane according to an embodiment of the present invention;

FIG. 3 is a schematic flow chart illustrating a method for laying and forming a three-dimensional electrical pipe according to an embodiment of the present invention;

FIG. 4 is a schematic flow chart illustrating a method for laying and forming a three-dimensional electrical pipe according to another embodiment of the present invention;

FIG. 5 is a schematic flow chart illustrating a method for laying and forming three-dimensional electrical piping according to yet another embodiment of the present invention;

FIG. 6 is a flow chart of a computer aided drawing method for electrical piping according to another embodiment of the present invention;

FIG. 7 is a flowchart illustrating a method for labeling a pipe orifice and a pipe path in a two-dimensional symbol according to two-dimensional symbol attributes according to an embodiment of the present invention;

FIG. 8 is a functional block diagram of a computer-aided drawing method for electrical piping according to an embodiment of the present invention;

FIG. 9 is a schematic view of a piping interface of a floor piping mode according to an embodiment of the invention;

FIG. 10 is a floor thickness matching representation of an embodiment of the present invention;

FIG. 11 is a flow chart diagram illustrating a two-dimensional map generation method according to an embodiment of the invention;

FIG. 12 is a flow chart illustrating a two-dimensional icon notation method in accordance with an embodiment of the present invention;

FIG. 13 is a schematic two-dimensional symbolic illustration of a steel pipe in accordance with an embodiment of the present invention;

FIG. 14 is a schematic view of a nozzle label in an embodiment of the invention;

FIG. 15 is a schematic view of piping operation in one embodiment of the present invention;

FIG. 16 is a schematic view of an interface for adjusting reference points in an embodiment of the present invention;

FIG. 17 is a three-dimensional schematic of a steel pipe in an embodiment of the invention;

FIG. 18 is a schematic illustration of a steel pipe two-dimensional symbol and label in an embodiment of the invention;

FIG. 19 is a schematic illustration of the statistics of a steel pipe in an embodiment of the present invention;

FIG. 20 is a diagram illustrating the results of writing the tube diameter and tube length back to the cable table according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

Fig. 1 is a flowchart illustrating a computer-aided drawing method for electrical piping according to an embodiment of the present invention. As shown in fig. 1, a computer-aided drawing method of electrical piping of some embodiments may include:

step S110: acquiring cable information, floor information, matching relation between the outer diameter of the cable and the specification of a distribution pipe, pipe opening distance information relative to the floor, and matching relation between the outer diameter of the distribution pipe and the thickness of the floor, wherein the cable information comprises cable engineering attributes;

step S120: determining the outer diameter of the tubing according to the matching relation between the outer diameter of the cable and the specification of the tubing and the cable information; determining a coordinate value of a fixed point of the pipe orifice in a two-dimensional plane;

step S130: and automatically laying to form the three-dimensional electric distribution pipe according to the pipe orifice fixed point coordinate value, the pipe orifice distance information of the relative floor, the floor information, the distribution pipe outer diameter and the matching relation between the distribution pipe outer diameter and the floor thickness.

In the step S110, the cable information may be imported into computer aided design software (CAD) in the form of a cable table, and may include cables requiring piping, number, model, specification of each cable, and location and place of the cable, so that the cables may be used as basic data for piping. The cable engineering attributes may include: cable number, cable source, cable destination, cable model, cable specification, and the like. The floor information may include a floor number and a floor thickness. Floor information may be extracted from objects (e.g., buildings) that have been built in the CAD and require piping, and the extracted floor information may be stored in a database and read when needed. The matching relationship between the cable outer diameter and the piping specification can be set as required, wherein the piping specification can include the piping outer diameter. The information about the distance of the pipe orifice from the floor slab, for example, the information about the height of the pipe orifice from the floor slab, can be generally manually input through the input interface, or a default value can be set. The matching relation between the outer diameter of the distribution pipe and the thickness of the floor slab can be set as required, and the distribution pipe can be used for floor slab distribution pipes. The matching relationship between the cable outer diameter and the piping specification and the matching relationship between the piping outer diameter and the floor thickness may be stored in a rule base in advance, and the rule base may further include: cable outer diameter value and steel pipe model storehouse, the steel pipe model storehouse can include: steel pipe specification, material name, material coding information and the like.

In step S120, the matching relationship between the cable outside diameter and the piping specification may include a matching relationship between a single cable and the piping specification, and may include a matching relationship between a plurality of cables and the piping specification, wherein the piping specification may include the piping outside diameter, and the piping may include a steel pipe. The outer diameter of the piping can be determined from the outer diameter of the cable and the matching relationship between the cable outer diameter and the piping specifications. The nozzle point may be determined in a two-dimensional plane (e.g. xy plane), for example, a coordinate value of the nozzle point in the two-dimensional plane may be determined by a click command of a mouse, and the coordinate value of the nozzle point may be a coordinate value of a reference point selected by a user or a coordinate value of a reference point after being corrected.

In step S130, the nozzle fixed point coordinate value may be a start point or an end point of laying the pipe. The nozzle distance information relative to the floor may be used to determine the height of the relative floor, e.g. a value in the z-coordinate. The matching relationship between the outer diameter of the pipe and the thickness of the floor slab can be used for determining the feasibility of floor slab hidden matching (automatic matching to laying below the floor slab can be realized when the matching is not feasible). The outside diameter of the tubing can be used to determine the cross-section of the tubing. After the fixed point of the pipe orifice is determined, the pipe can be automatically laid according to various matching relations to form a pipe distribution path. The three-dimensional electric piping may refer to piping of the entire process, and may include a plurality of pipings and various kinds of pipings. Both ends of the three-dimensional electric piping can be connected with electric equipment.

In this embodiment, by obtaining cable information, floor information, a matching relationship between a cable outer diameter and a piping specification, pipe orifice distance information with respect to a floor, and a matching relationship between a piping outer diameter and a floor thickness, determining a piping outer diameter according to the matching relationship between the cable outer diameter and the piping specification and the cable information, determining a pipe orifice fixed point coordinate value in a two-dimensional plane, and automatically laying and generating a three-dimensional electrical piping according to computer-aided design according to the pipe orifice fixed point coordinate value, the pipe orifice distance information with respect to the floor, the floor information, the piping outer diameter, and the matching relationship between the piping outer diameter and the floor thickness. Therefore, decision-making basis can be provided timely on the three-dimensional design platform, designers are liberated from tedious, simple and repeated labor, design rule information, design process information and the like are arranged in the module database, design is smoothly completed according to design requirements, and design efficiency and quality are improved. By means of an intelligent informatization means, the degree of automation is high, more intelligent three-dimensional piping design is carried out, and the design efficiency and the design quality are improved.

Fig. 2 is a schematic flow chart of a method for determining a coordinate value of a nozzle fixed point in a two-dimensional plane according to an embodiment of the present invention. As shown in fig. 2, in step S120, determining the nozzle fixed point coordinate values in the two-dimensional plane may include:

step S121: determining a coordinate value of a nozzle reference point in a two-dimensional plane according to the first click command;

step S122: and receiving a coordinate correction value, and calculating to obtain a nozzle fixed point coordinate value according to the nozzle reference point coordinate value and the coordinate correction value.

In step S121, the first click command may be implemented by left clicking a mouse button, for example. The nozzle reference point coordinate values may be nozzle reference points manually selected by a user. In other embodiments, the nozzle reference point coordinate value may be determined by a keyboard or a touch screen.

In step S122, the coordinate correction value may be obtained by inputting a correction value by a user through an interface window, and may include nine selections of X + Y, X-Y, XY +, XY-, X + Y +, X + Y-, X-Y +, X-Y-, and XY, where + represents moving to a positive direction, -represents moving to a negative direction, X represents X axis, and Y represents Y axis, and may move in only one coordinate axis direction, such as X + Y, or in two coordinate axis directions, such as X + Y +. And obtaining a coordinate value of the fixed point of the pipe orifice by adding coordinates according to the coordinate value of the reference point of the pipe orifice and the coordinate correction value.

In this embodiment, the coordinate correction value is used to correct the input reference point, so that the user can be assisted in positioning the piping more accurately.

In the piping process of a project, piping in various modes can be used, such as a floor piping mode, a floor hidden distribution mode, an edge line bright distribution mode, a vertical pipe distribution mode, an existing intelligent line automatic piping mode, a piping group and the like. In different piping modes, automatic piping may be performed in different or similar manners.

In some embodiments, the step S130 of automatically laying and forming a three-dimensional electrical pipe according to the pipe orifice fixed point coordinate value, the pipe orifice distance information relative to the floor slab, the floor slab information, the pipe outer diameter, and the matching relationship between the pipe outer diameter and the floor slab thickness may include:

(1) In a floor distribution mode, according to the floor information, the distribution pipe outer diameter and the matching relation between the distribution pipe outer diameter and the floor thickness, a distribution pipe path is formed by connecting two pipe orifice fixed points corresponding to different pipe orifice fixed point coordinate values;

(2) In a floor hidden matching mode, according to the outer diameter of the pipe, a pipe orifice fixed point corresponding to two different pipe orifice fixed point coordinate values is connected to form a pipe distribution path;

(3) Under the edge angle line open distribution mode, according to the outer diameter of the distribution pipe, connecting the pipe orifice fixed points corresponding to two different pipe orifice fixed point coordinate values and the edge angle line selected in the two-dimensional plane of the floor or the terrace to form a distribution pipe path;

(4) And forming a piping path through a pipe orifice fixed point corresponding to the pipe orifice fixed point coordinate value according to the outside diameter of the piping and the pipe orifice distance information of the relative floor slab in a mode of vertical pipe distribution.

In the corner line clear match mode, specifically, a first vertical segment may be formed by making a vertical line upward or downward from a fixed point of a first nozzle, then a first inflection point formed when the first vertical segment meets a floor or a floor slab is made a vertical line toward the corner line in a plane where the first inflection point and the corner line are located, a first shortest distance segment is formed, then a second inflection point formed when the first shortest distance segment meets the corner line is made a straight line along the corner line to a second shortest distance segment meets a second inflection point formed when the second shortest distance segment meets the corner line, wherein a second vertical segment is formed by making a vertical line upward or downward from a fixed point of a second nozzle, and then a vertical line is made toward the corner line from a third inflection point formed when the second vertical segment meets the floor or the floor slab, so as to form the second shortest distance segment. In the edge line clear mode, the edge line may include a polygonal line as needed.

In other embodiments, in the floor piping mode, when the floor piping, and the floor hiding are performed, the floor thickness and the piping cross section may be automatically extracted first, the floor laying or the floor laying (suitable for the floor hiding mode) may be determined, then, the piping path may be obtained by automatically connecting according to the selected two fixed points, and the piping path obtained by the connection may be adjusted to a shape of a chamfered broken line, a shape capable of avoiding a hole, or the like by a mouse. In addition, the elevations and coordinates of the two ends (two pipe orifices) of the piping can be adjusted according to the reference point.

In the piping mode of floor hidden distribution, the piping section can be automatically extracted first, and then the piping path can be obtained by automatic connection according to two selected fixed points. In addition, the piping path obtained by the connection can be adjusted to a shape such as an arc line or a hole by the mouse. In addition, the elevation and the coordinate of the two ends (two pipe orifices) of the steel pipe can be adjusted according to the selected point.

In the clear-matching mode along the edge lines, the piping cross section can be automatically extracted first, and then the lines of the piping middle piping path can be automatically generated according to the selected two fixed points and the selected edge lines (optional). In addition, the elevation and the coordinate of the two ends of the steel pipe can be adjusted on the interface and according to the point selection.

In the vertical piping mode or the electrical piping vertical section mode, the piping cross section is automatically extracted first, and the piping path is vertically generated from a single fixed point. In addition, the elevation and the coordinate of the two ends of the steel pipe can be adjusted on the interface and according to the selected point.

In the smart wire space piping mode, the piping cross section is automatically extracted and the piping is automatically made through the existing smart wire.

In the pipe matching mode, the automatic pipe matching can be set through the existing intelligent wire and an interface, and the interface setting can comprise: the number of rows and columns, the piping cross section, the row pitch, the column pitch, and the burial depth.

The cross section of the pipe can be automatically matched according to the cable of the selected pipe, a plurality of cables can be selected, and the outer diameter of the cable can be stored in a database according to the model and specification of the cable.

Fig. 3 is a flow chart illustrating a method for laying and forming a three-dimensional electrical pipe according to an embodiment of the present invention. As shown in fig. 3, the step S130 of automatically laying and forming a three-dimensional electrical pipe according to the pipe orifice fixed point coordinate value, the pipe orifice distance information with respect to the floor slab, the floor slab information, the pipe outer diameter, and the matching relationship between the pipe outer diameter and the floor slab thickness may include:

step S1311: determining a coordinate value of a direction perpendicular to the two-dimensional plane according to the pipe orifice distance information of the relative floor slab;

step S1312: in a vertical section mode of the electric piping, according to a coordinate value of a direction perpendicular to the two-dimensional plane and the outside diameter of the piping, the piping is laid to a predetermined position in the direction perpendicular to the two-dimensional plane from a pipe orifice position corresponding to the pipe orifice fixed point coordinate value, and a circular arc inflection point is formed at the predetermined position.

In the above-described step S1311, the two-dimensional plane may be an xy plane, and the direction perpendicular to the two-dimensional plane may be a z-axis direction. The coordinate value perpendicular to the direction of the two-dimensional plane can be obtained according to the height of the floor slab and the pipe orifice distance information of the relative floor slab.

In the above step S1312, the pipe outer diameter may be used to determine a pipe cross section. For example, the piping may be laid down or up in a direction perpendicular to the floor. The piping can be represented by a straight line. The bending radius of the arc-shaped inflection point may be determined according to the outer diameter of the cable, or may be determined according to 6 times of the outer diameter of the steel pipe, for example, twenty times of the outer diameter of the cable, or 2 radius values may be large. The arc at the inflection point may be connected to the piping path in a tangential manner to the straight line.

In this embodiment, can conveniently assist the user to accomplish the arc connection of electric piping vertical section and horizontal segment and lay the design.

Fig. 4 is a schematic flow chart of a method for laying and forming a three-dimensional electrical pipe according to another embodiment of the present invention. As shown in fig. 4, in the method shown in fig. 3, in the step S130, a three-dimensional electrical pipe is automatically laid and formed according to the coordinate value of the fixed point of the pipe orifice, the information of the pipe orifice distance from the floor slab, the information of the floor slab, the outer diameter of the pipe, and the matching relationship between the outer diameter of the pipe and the thickness of the floor slab, and the method may further include:

step S1313: in a floor distribution mode, according to the floor information, the distribution pipe outer diameter and the matching relation between the distribution pipe outer diameter and the floor thickness, a distribution pipe path is formed in a two-dimensional plane where a floor is located by connecting two different inflection points; in a floor hidden matching mode, according to the outer diameter of the piping, a piping path is formed in a two-dimensional plane where the floor is located by connecting two different inflection points; and under the edge line open distribution mode, according to the outer diameter of the distribution pipe, connecting the two different inflection points and the edge line selected in the two-dimensional plane of the floor or the terrace to form a distribution pipe path.

In step S1313, in the process of drawing the three-dimensional electrical pipe, it is generally necessary to draw a plurality of vertical segments (one electrical pipe may generally have 2 vertical segments), both pipe ends of two vertical segments on the floor or the terrace side may be arc-shaped inflection points, and two arc-shaped inflection points that need to be connected in the same two-dimensional plane may be connected to form a laying pipe in the horizontal plane. The floor piping mode, the floor hidden distribution mode or the edge corner line exposed distribution mode can realize automatic piping through two fixed points, such as pipe orifice positions of two vertical sections (the edge corner line mode can also have selected edge corner lines besides 2 fixed points).

In this embodiment, a user can be conveniently assisted in completing the laying design of the pipe in the horizontal plane.

Fig. 5 is a schematic flow chart illustrating a method for laying and forming a three-dimensional electrical pipe according to another embodiment of the present invention. As shown in fig. 5, the method shown in fig. 4, in which the step S130 is performed to automatically lay and form the three-dimensional electric pipe according to the pipe orifice fixed point coordinate value, the pipe orifice distance information with respect to the floor, the floor information, the pipe outer diameter, and the matching relationship between the pipe outer diameter and the floor thickness, may further include:

step S1314: determining the position of an adjusting point according to the second click instruction;

step S1315: connecting the adjusting points to two different inflection points respectively according to the positions of the adjusting points so as to adjust a piping path formed in a two-dimensional plane; and the position of the adjusting point forms an arc-shaped inflection point.

In step S1314, the second click command may be obtained by a mouse or a touch panel, and the coordinates of the clicked position may be the coordinates of the adjustment point, and the adjustment point may be located in the vicinity of the pipe path formed in step S1313.

In step S1315, the piping path formed in step S1313 may be formed by connecting two inflection points, and the piping path formed in step S1313 may be replaced with a piping path formed by connecting the two inflection points to the adjustment point. The bending radius of the arc-shaped inflection point formed at the position of the adjusting point can be the same as that formed at the inflection point, and the connection modes at the inflection point can be tangent connection.

In the present embodiment, the adjustment of the piping path in the horizontal plane can be realized by providing the adjustment point.

Fig. 6 is a flowchart illustrating a computer-aided drawing method for electrical piping according to another embodiment of the present invention. As shown in fig. 6, the computer-aided drawing method for electrical piping shown in fig. 1 may further include:

step S140: acquiring a pre-stored characteristic attribute of the pipe in the three-dimensional electric pipe, and generating a two-dimensional symbol attribute according to the characteristic attribute;

step S150: generating a two-dimensional symbol corresponding to the piping;

step S160: and marking the pipe orifice and the piping path in the two-dimensional symbol according to the two-dimensional symbol attribute.

In step S140, the characteristic attribute of the pipe may include a reference point coordinate, a direction characteristic value adjusted by the positioning point based on the reference point, cable information, pipe orifice distance information relative to the floor, a steel pipe number (including pipe diameter information), laying information (including height of the floor, in the floor, under the floor, and a floor buried depth), and a laying mode (including floor pipe, and the like). These attributes may be assigned to the two-dimensional symbols corresponding to the three-dimensional steel pipes as attributes of the two-dimensional symbols. The two-dimensional symbolic attributes allow the user to know various conditions of the piping. The characteristic attribute of the piping can be stored in a database or a storage space corresponding to a three-dimensional drawing in the drawing process of the three-dimensional electric piping, and extracted when a two-dimensional drawing is required to be drawn.

In step S150, the piping path of the two-dimensional symbol may be represented by a straight line (if the path is adjusted by the adjustment point, the piping path of the two-dimensional symbol may be formed by 2 chamfered folding lines), and the pipe orifice may be represented by a circle. The end with the upward nozzle can be represented by a hollow circle with a fixed size, and the end with the downward nozzle can be represented by a solid circle. The vertical piping may be represented by a hollow circle. Horizontal ports may be represented by straight lines. Different parts may be represented in different colors.

In step S160, the two-dimensional symbol attribute may include information related to the pipe orifice and information related to the piping path. When labeling the pipe orifice and the piping path in the two-dimensional symbol, a labeling line, a labeling character, and the like may be added.

In this embodiment, by adding "three-dimensional piping process information" as the piping attribute and storing it in the three-dimensional drawing, it is possible to automatically complete two-dimensional plotting by extracting the piping attribute in the three-dimensional drawing, and store the process information as the attribute of the two-dimensional symbol in the two-dimensional drawing, extract the attribute of the two-dimensional symbol, and complete automatic labeling. And a two-dimensional graph does not need to be drawn independently, so that the workload of a user is greatly reduced.

In some embodiments, the step S150 of generating the two-dimensional symbol corresponding to the pipe may include:

two circles of a set diameter are generated from a horizontal piping path in the piping, and the two circles are connected by a straight line to form a two-dimensional symbol corresponding to the piping.

In this embodiment, the end with the upward nozzle can be represented by a hollow circle with a fixed size, and the end with the downward nozzle can be represented by a solid circle. Horizontal orifices may be represented by straight lines. Two-dimensional mapping can be easily performed by circles and straight lines. The vertical piping may be represented by a hollow circle.

Fig. 7 is a flowchart illustrating a method for labeling a pipe orifice and a pipe path in a two-dimensional symbol according to two-dimensional symbol attributes in an embodiment of the present invention. As shown in fig. 7, the step S160 of labeling the pipe opening and the pipe path in the two-dimensional symbol according to the two-dimensional symbol attribute may include:

step S161: dynamically capturing a pipe orifice or a piping path in the two-dimensional symbol to obtain a marking line starting point;

step S162: determining a marking line end point according to a third click command, and forming a marking line according to the marking line starting point and the marking line end point;

step S163: taking the end point of the marking line as a reference point of the character marking, and determining the direction of the character marking according to the reference point and a fourth click instruction;

step S164: and generating the marking characters of the pipe orifice or the piping path in the two-dimensional symbol according to the reference points of the character marking, the direction of the character marking and the attribute of the two-dimensional symbol.

In step S161, the dynamic capture circle center can be selected as the origin of the annotation line of the nozzle. Any point on the piping path can be dynamically captured as the starting point of the marked line of the piping path.

In the step S162, the end point of the annotation line may be determined by moving the cursor and clicking through the mouse or the touch screen, and once the end point of the annotation line is determined, the start point and the end point of the annotation line may be automatically connected to form the annotation line. Or, in the process of moving the cursor, a straight line between the starting point of the marking line and the position of the cursor can be always displayed, and after the clicking operation is performed, the straight line is fixed to form the marking line.

In step S163 described above, the fourth click instruction may be obtained by clicking with a mouse or a touch panel. The reference point may be a fixed point, and a direction of the cursor position at the time of clicking with respect to the reference point may be determined as a direction of the character label.

In step S164, a starting point of the character marking may be determined according to the reference point of the character marking and the direction of the character marking, and a character may be marked. The two-dimensional symbolic attributes may be used to determine the content of the text labels.

In this embodiment, the labeling of the pipe orifice or the piping path can be conveniently realized in an auxiliary manner.

In some embodiments, the method for computer-aided drawing of electrical piping shown in fig. 1 may further include:

step S170: traversing each piping in the three-dimensional electric piping, classifying and summarizing according to the coding attribute of each piping, counting to obtain the length of each kind of piping, and outputting the material name, the material code, the material specification and the material length of the piping.

In the above step S170, the encoding attribute may identify the type of the pipe. The coding attributes can be stored in a database or a storage space corresponding to the three-dimensional drawing in the process of drawing the three-dimensional tubing, and output when summary statistics is carried out.

In this embodiment, the piping classification and collection can be automatically realized.

In some embodiments, the feature attributes include: correction direction (nozzle reference point coordinate value, coordinate correction value/correction characteristic value), cable information, nozzle height information, piping specification, piping number, and piping mode information.

In some embodiments, the cable engineering attributes include: cable number, cable source, cable destination, cable model, and cable specification.

In some embodiments, the floor information includes a floor number and a floor thickness.

In some embodiments, taking a steel pipe as an example, the drawing method of the electrical three-dimensional pipe may include the following steps:

A. the cable information import is used for extracting the engineering attributes (cable number, treatment, place, model and specification) of the cable, and carrying out identification setting and hiding on irrelevant cables and distributed cables;

B. the rule built-in database comprises cable outer diameter values (corresponding to different models and specifications), matching rules of cable outer diameters and steel pipe specifications (comprising a single cable and a plurality of cables), matching rules of steel pipe outer diameters and floor thickness, steel pipe specifications (corresponding to steel pipe outer diameters), a steel pipe model database (comprising steel pipe material names, specifications and material coding information) and the like;

C. extracting floor slab information into a database, wherein the floor slab information comprises floor slab numbers and thickness information;

D. correcting the pipe orifice positioning point and the reference point;

E. a positioning method of a Z coordinate of a pipe orifice positioning point;

F. a steel pipe drawing method;

G. a steel pipe horizontal path adjusting method;

H. a two-dimensional graph plotting method;

I. a pipe orifice labeling method;

J. a path marking method;

K. a method for guiding out the pipe diameter and the pipe length;

l, steel pipe summarizing and counting method.

In some embodiments, step D, the reference point selected on the screen is modified to be the nozzle positioning point. The coordinate values of X and Y axes of a plane can be corrected specifically, after a reference point is selected on a screen, the coordinate values can be corrected (X +, X-, Y +, Y-, X + Y +, X + Y-, X-Y +, X-Y-) or not corrected in eight directions from a popped interface, nine choices are provided, a designer selects according to actual conditions, and the corrected value is a radius value of the steel pipe.

In some embodiments, in step E, the Z coordinate of the positioning point is unrelated to the Z coordinate of the reference point, the Z coordinate information of the steel pipe laying floor is obtained, and the designer gives the height information of the relative floor (the default value is 1200mm above the floor, and the negative value is below the floor) on the interface, so as to obtain the Z coordinate information of the positioning point, that is, the height of the pipe orifice.

In some embodiments, in step F, the steel pipe is vertically upward or downward from the pipe orifice to the direction of the laying platform, and after reaching a predetermined position (on the floor, in the floor, below the floor, the buried depth of the floor, determined according to the laying mode), an inflection point is formed, and between 2 inflection points (an electrical pipe is bent from a horizontal path to a power supply/utilization device, generally, an inflection point exists, because 2 pipe orifices of the pipe correspond to power supply or power utilization devices respectively, and the pipe path is a horizontal concealed section, there may be a height difference, and from the power supply/utilization device to the horizontal concealed section, there may correspond to 2 vertical sections, and the intersection point of the vertical section and the horizontal section is an inflection point and may be processed into an arc inflection point) straight line connection. The arc with preset bending radius value as arc radius is used at the turning point to be in tangent transition with two straight lines. The default bend radius is 20 times the outer diameter of the thickest cable inside the tube, or may be 6 times the outer diameter of the steel tube, taking large values.

In some embodiments, step G is connected to the two inflection points in step F by two straight lines, and the adjustment points are transited by tangency of the circular arc to the two straight lines. The radius of the circular arc is the same as that in step F.

In some embodiments, in step H, each three-dimensional steel pipe is traversed, characteristic attributes of each three-dimensional steel pipe are extracted, including reference point coordinates, positioning points, a reference point-based adjustment direction characteristic value, a cable list (in pipes), a pipe orifice elevation, a steel pipe number (including pipe diameter information), laying information (on a floor, in a floor, under a floor, and a floor buried depth height), and a laying mode (floor piping, and the like), and these attributes are assigned to two-dimensional symbols of the corresponding three-dimensional steel pipes as attributes of the two-dimensional symbols.

The three-dimensional steel pipe is a geometric body, the two-dimensional symbol corresponding to the geometric body is composed of three independent elements, two pipe orifices are circles with the diameters of 180mm respectively, the third element is a line connecting 2 circles, and if the horizontal path of the three-dimensional steel pipe is adjusted, the method of connecting the line of the 2 circles refers to the connection mode of the horizontal section of the steel pipe in the step F.

And (3) positioning each nozzle symbol, taking the coordinate of the reference point as a reference, correcting in the direction specified by the adjustment direction characteristic value, and taking the corrected value as the radius of the nozzle symbol circle. The characteristic value corresponds to the selection of 1/9 (X +, X-, Y +, Y-, X + Y +, X + Y-, X-Y +, X-Y-or no correction) of the reference point X and Y coordinates by the nozzle positioning during drawing the three-dimensional steel pipe. That is, the two-dimensional symbol of the nozzle and the positioning of the three-dimensional nozzle are corrected in the same direction, but the corrected values are different.

In some embodiments, step I, capturing the center of the pipe orifice symbol, using the center of the pipe orifice symbol as the starting point of the annotation line, dynamically capturing the selected point (determining the annotation position) of the left mouse button as the end point of the annotation line, using the point as the reference point of the text annotation, continuing to capture the left mouse button, determining the annotation direction, and enabling the text annotation to be performed upwards or towards the left.

The following can be automatically implemented:

and extracting the attribute value of the serial number of the steel pipe, and calculating the length and the interval of the character marking line (the interval distance between the characters and the marking line) according to the character form activated by the platform. And determining the line number of the character labels according to the number of the cables in the pipe, wherein the serial number of each cable occupies one line. Automatically generating character marking lines and writing corresponding marking information. The cable number consistent with the steel pipe number is omitted and rewritten as the steel pipe number. Then, under the last row, the height value of the pipe orifice relative to the floor is extracted, and the elevation symbol and the height value are written.

In some embodiments, the same nozzle symbol may be marked multiple times, with the latter marking replacing the last marking of that nozzle.

In some embodiments, step J, capturing a steel pipe symbol (any point on the steel pipe path line), as a starting point of the annotation line, dynamically capturing a selected point of the left mouse button (determining the annotation position), as an end point of the annotation line, which is simultaneously used as a reference point of the text annotation, continuing to capture the left mouse button, determining the annotation direction, and determining whether the text annotation faces upwards or towards the left.

The following can be automatically implemented:

extracting steel pipe laying information, such as information on a floor, in the floor, under the floor or the buried depth of a floor, extracting platform activation font, calculating the length of a character marking line, automatically generating the character marking line and writing corresponding laying information on the line.

In some embodiments, in step K, after the cable table is imported into the database, in the process of piping, the pipe diameter and pipe length of each steel pipe are written into the corresponding column of the corresponding cable in the database in real time, and the export is performed in the form of a whole table, where the information of the individual column is processed as follows:

the length unit of the tube is changed from millimeter to meter, and the numerical value no matter the size after decimal point is cut off, and then is directly increased by one bit;

the pipe diameter is written into G + pipe diameter value;

and (3) cables penetrating the steel tube with other cables are filled in the tube diameter row: and the xx cable is penetrated.

In some embodiments, step L, traversing the three-dimensional steel pipe, extracting the encoding attribute, classifying and summarizing the statistical length according to the encoding attribute, and extracting the information of the material name, the pipe diameter specification and the like of each type of steel pipe and exporting the information in an Excel format. The derived correlations are listed as: material name, material code, material specification, material length.

In this embodiment, a "cable piping design database" is constructed, which includes design resources such as piping design engineering data, piping design rules, and specifications. And in the process of piping design, the three-dimensional piping is smoothly completed by a designer with the help of knowledge and information provided by the database. And the reference point correction technology is used for assisting a designer in accurately positioning the steel pipe. The three-dimensional tubing process information is added to serve as the attribute of the steel tube and stored in a three-dimensional drawing, the attribute of the steel tube in the three-dimensional drawing is extracted, two-dimensional plotting is automatically completed, and the process information serves as the attribute of a two-dimensional symbol and is stored in the two-dimensional drawing. And completing automatic labeling by extracting the two-dimensional symbol attributes. With this can reach and liberate the designer from loaded down with trivial details, simple and repeated work, improve the purpose of design efficiency and quality:

in order that those skilled in the art will better understand the present invention, the following description will illustrate the implementation of the present invention in a specific embodiment.

The electric piping comprises cables needing to be arranged according to the requirements of a cable table, and the number, the model number and the specification of each cable and the handling and the going of the cable are arranged as basic data. The problems to be solved by the piping design include pipe orifice positioning, the matching relation between the pipe diameter and the outer diameter of the cable, the certain bending radius of the cable in the protective pipe, the matching relation between the outer diameter of the steel pipe and the thickness of a floor slab, the path adjustment of the steel pipe laid in the floor slab, the two-dimensional symbolization problem of the steel pipe, the labeling problem of the two-dimensional pipe orifice and pipe orifice paths, material statistics and the like.

When the method of the embodiment is used for engineering piping design, a user only needs to guide a cable meter into the system, select a laying mode for each cable, determine the reference position and the adjustment direction of the pipe orifice on a plane diagram, and then draw a required three-dimensional piping diagram according to a default bending radius. More importantly, a two-dimensional graph can be automatically generated on the basis, the labeling of the pipe orifice is completed in an auxiliary mode, the material consumption is automatically counted, a material table is generated, and engineering quantity data are provided. The operation interface can adopt operation methods such as an icon menu, a keyboard, a mouse and the like, is convenient, flexible and quick, and can provide a convenient man-machine interface mode and input options of relevant basic data for a user, so that designers can visually and clearly operate.

The method of the embodiment can achieve the purposes of releasing designers from fussy, simple and repeated labor and improving design efficiency and quality by the following four technical means:

(1) And constructing a 'cable piping design database' comprising piping design engineering data, piping design rules, specifications and other design resources. In the process of piping design, by means of knowledge and information provided by a database, a designer is assisted to smoothly complete three-dimensional piping;

(2) The method comprises the following steps of (1) assisting a designer in accurately positioning a steel pipe by using a 'reference point correction method';

(3) Adding three-dimensional tubing process information as the attribute of the steel tube, storing the attribute in a three-dimensional drawing, automatically finishing two-dimensional plotting by extracting the attribute of the steel tube in the three-dimensional drawing, and storing the process information as the attribute of a two-dimensional symbol in the two-dimensional drawing;

(4) And extracting the two-dimensional symbol attribute to finish automatic labeling.

Fig. 8 is a functional block diagram of a computer-aided drawing method for electrical piping according to an embodiment of the present invention. As shown in fig. 8, in the floor piping mode, when floor piping, underfloor piping, and floor darkening are performed, the method of automatically piping may include, at two given points:

1. automatically extracting the thickness of the floor slab and the section of the steel pipe, and determining the floor slab or the floor slab below (suitable for a floor slab hidden matching mode);

2. according to the two selected points, the piping paths are automatically connected to obtain a piping path, and the piping path can be adjusted to be a chamfer fold line, a hole can be avoided and the like through a mouse at a later stage;

3. the elevation and the coordinate of the two ends of the steel pipe can be input through an interface and adjusted according to a reference point.

In the piping mode of floor hidden distribution, the method of automatic piping may include, at given two points:

1. automatically extracting the section of the steel pipe;

2. according to the two selected points, the pipe distribution path is obtained through automatic connection, and the pipe distribution path can be adjusted to be an arc line through a mouse at the later stage, so that holes and the like are avoided;

3. the elevation and the coordinate of the two ends of the steel pipe can be input through an interface and adjusted according to point selection.

In the edge line display mode, the automatic tubing method can comprise the following steps of:

1. automatically extracting the section of the steel pipe;

2. automatically generating a piping according to the selected two points and the middle path line (the selected corner line);

3. the elevation and the coordinate of the two ends of the steel pipe can be input through an interface and adjusted according to point selection.

In the vertical piping mode, the method of automatically piping may include, by a given point:

1. automatically extracting the section of the steel pipe;

2. the elevation and the coordinate of the two ends of the steel pipe can be input through an interface and adjusted according to point selection.

In the smart wire space piping mode, the method for automatically piping by the existing smart wire may include:

1. and automatically extracting the section of the steel pipe.

2. Extracting intelligent line

In the pipe matching mode, the automatic pipe matching is set through the existing intelligent wire and the interface, and the interface setting can comprise:

1. setting the number of rows and columns;

2. setting the section of a steel pipe;

3. setting line spacing;

4. setting a column pitch;

5. the buried depth is set.

The pipe matching mode only matches pipes without cables, generally reserves paths for cables, does not depend on cable matching, and can reserve pipes according to experience.

Fig. 9 is a schematic view of a piping interface in a floor piping mode according to an embodiment of the present invention. Referring to fig. 9, when designing the piping, the location where the cable comes and goes can be determined according to the cable table, and the path of the steel pipe can be determined; the diameter of the cable is determined according to the model specification of the cable, the specification of the steel pipe is determined according to the diameter of the cable, and after the pipe is arranged, the pipe opening is marked to guide constructors to construct. In the prior art, the above processes are all manual matching, including: and checking the outer diameter of each cable, checking the table to match the specification of the steel pipe, checking the table to obtain the specification of the steel pipe through the diameter of the circumscribed circle of the cables when the cables are penetrated together, and manually recording and adding marks.

In this embodiment, first, the project cable table is imported into the database, the cable outer diameter table is set in the database, the cable outer diameters corresponding to the cable types and specifications used for the projects are built in the table, the matching table of the cable outer diameters and the steel pipes is also built in the database, and the calculation rule of the combined penetration of a plurality of cables is built in the program. After the cable is selected during design, the module automatically matches the specification of the steel tube and displays the specification on an interface in the form of steel tube numbers, and a designer can determine the specification according to the specification and modify the specification according to requirements. The number of the cable penetrated by each steel pipe is recorded as the attribute of the steel pipe, and is automatically extracted and displayed when being marked. The cable table on the left side of the interface is extracted after being guided in and reprocessed through the cable management interface. Cables to be managed are presented, and some cables which do not need to be managed and cables which are already managed are excluded from the list, so that designers can effectively select and fully master the design process.

Figure 10 is a floor thickness matching representation of an embodiment of the present invention. As shown in fig. 10, clicking on the "lay rule button" in the interface shown in fig. 9 may present a floor thickness matching table interface. The data of the table is already built in the database, and a designer can open the basis of the pushing result of the interface understanding module to judge whether to make some changes in specific projects.

In fig. 9, the relative height value of the pipe end 1 and the pipe end 2 is a pipe end Z coordinate value, the unit is mm, the default value is 1200 (in many cases, the pipe orifice is just 1200mm on the floor), the input actual value can be changed, and the pipe end Z coordinate value = the floor height + the relative height value.

The Z coordinate of the pipe end is directly extracted without adopting a mouse, and the Z coordinate is the same as the X coordinate and the Y coordinate, so that the three-dimensional operation point selection is avoided, and the efficiency of the three-dimensional operation point selection is much lower than that of the two-dimensional operation.

The method has the advantages that the two-dimensional design and the three-dimensional design are integrated through the two-dimensional operation of the three-dimensional design, the two-dimensional design is simple to operate, the three-dimensional design is visual, and the performance of the method is greatly improved through the arrangement.

The bending radius of the steel pipe is set to 20 by default, and in most cases, 20, and the input required value can be changed.

Fig. 11 is a flowchart illustrating a two-dimensional map generating method according to an embodiment of the present invention. As shown in fig. 11, after the three-dimensional piping is completed, "create two-dimensional map" in the interface shown in fig. 9 may be clicked to generate a two-dimensional map.

In the process of automatically creating a new drawing type as a two-dimensional drawing, a new drawing can be created to place a two-dimensional symbol, wherein the drawing name, for example, is increased by "_2D" after the current drawing name.

In the process of automatically drawing the two-dimensional symbol of the steel pipe, the two-dimensional symbol of the steel pipe can be composed of three independent elements, two pipe orifices are respectively a line connecting 2 circles for circles with the diameter of 180mm, and if the horizontal path of the three-dimensional steel pipe is adjusted, the symbol path of the line connecting the 2 circles is correspondingly adjusted. The reference point and the adjusting direction of the pipe orifice coordinate are the same as those of the three-dimensional pipe during drawing, and the adjusting value is changed into the radius value of the pipe orifice circle of 90mm.

In the process of extracting the attributes of the three-dimensional steel pipes and giving the attributes to the corresponding two-dimensional symbols, the characteristic attributes of each three-dimensional steel pipe are extracted, and the method comprises the following steps: the coordinate of the reference point, the characteristic value of the positioning point based on the adjustment direction of the reference point, a cable list (in a pipe), the elevation of a pipe orifice, the number of a steel pipe (including pipe diameter information), laying information (on a floor, in the floor, under the floor and the buried depth of a floor), a laying mode (floor piping, floor piping and the like) and the like are used as two-dimensional symbolic attributes. After the attributes of the three-dimensional steel pipe are extracted and assigned to the corresponding two-dimensional symbols, the marking can be carried out.

Wherein: 1. the steel pipe consists of three parts, two ends and a pipe body; only one end can be seen from the vertical steel pipe; 2. the end with the upward pipe orifice is represented by a hollow circle with a fixed size, the end with the downward pipe orifice is represented by a solid circle, and the diameter of the circle can be 180mm (the size of a graph is 1.8 mm); the vertical steel pipe is represented by a hollow circle; 3. a horizontal orifice, represented by a straight line, which may be 180mm in length (the size of the diagram is 1.8 mm); 4. the tube body portions may be represented by red lines; the method for setting the image layer and the color number can comprise the following steps: an electrical professional graphic layer Elec-D-Conduit, a pipe body color number 203 and an end color number 195; communicAtion professional graphic layer EleC-X-TC-CommunicAtion protocol, tube color number: 225, end color number 217; communication professional graphic layer Elec-X-TC-Intercom Pipeline, tube color number: 225, end color number 217; instrument specialty Elec-K-Cable train & Conduit, body color number: 214, end color number 206.

Fig. 12 is a flowchart illustrating a two-dimensional icon notation method according to an embodiment of the present invention. FIG. 13 is a schematic two-dimensional symbol diagram of a steel pipe according to an embodiment of the present invention. FIG. 14 is a schematic view of a nozzle label in an embodiment of the invention. As shown in fig. 12 to 14, the labeling in the two-dimensional graph includes two types of nozzle labeling and laying path labeling, wherein the third point is only the judgment direction, and the line length and the end point coordinate are obtained by calculation. The labeled content of the nozzle label can be automatically extracted from the nozzle attribute, and the method can comprise the following steps: 1. several cables are arranged in the tube and several rows are arranged; 2. in the last row, besides marking out the cable number, marking out the piping path; 3. other rows only mark cable numbers; 4. and marking the elevation of the pipe orifice under the serial number of the last line of cables. The content of the laying path marking can be extracted from the symbolic attribute of the steel pipe, and can comprise at least one of in-floor laying, under-floor laying, on-floor laying and burial depth values.

The cable table of the item may include: serial number, cable number, pipe diameter, pipe length, cable type, cable gauge, noise level, cable length, handle number, go name, go number (e.g., + s5. Rl1), and the like.

FIG. 15 is a schematic diagram of piping operation in one embodiment of the invention. As shown in fig. 15, the reference point for positioning the nozzle is captured in a two-dimensional map, fig. 15 illustrates two-dimensional operation and selection points in an operation plane, which is a plan view of a building, and the middle part is a concrete floor, and the horizontal laying path of the steel pipes is based on the elevation of the concrete floor and the thickness of the floor. FIG. 16 is a schematic diagram of an interface for adjusting reference points according to an embodiment of the invention. As shown in fig. 16, the correction of the XY coordinates of the reference point for accurate positioning of the nozzle is done by interface selection. FIG. 17 is a three-dimensional schematic of a steel pipe in an embodiment of the invention. As shown in fig. 17, a three-dimensional graph of a steel pipe can be obtained, fig. 17 illustrates a model of 5 three-dimensional piping, the upper three steel pipes with horizontal paths are based on floor piping, the pipe orifice of one of the pipes is arranged below the floor, the other pipes are arranged on the floor, the lower pipe is floor piping, the pipe orifice elevation of the lower pipe is on the floor, a vertical pipe is arranged in the middle, and 2 pipe orifices are arranged on the floor and below the floor. FIG. 18 is a schematic diagram of a steel pipe two-dimensional symbol and label in an embodiment of the invention. As shown in fig. 18, the two-dimensional graph of the steel pipe can be represented by two circles and one straight line, and the marking letter can be formed by using the characteristic attribute of the steel pipe. Fig. 18 schematically shows a nozzle label and a pipe diameter (piping path) label. For example, the pipe orifice at the upper left corner is labeled to indicate that there are 2 cables (the numbers = a101BC + S5RL1-W2010 and = a101BC + S5RL1-W2005, respectively) in the electrical piping, the pipe diameter is G32, the pipe orifice level is 1.2m above the floor, where the code of "=" guide a101BC is a function code and actually represents a belt conveyor, the cable is related to the belt conveyor of the number a101BC, the code of "+" guide S5RL1 is a position code and represents an S5 substation RL1 relay cabinet, the code of "-" guide W2010 is a specification code, W represents a cable, 2 is related to the noise level of the cable, and 010 is a serial number. The pipe diameter (piping path) in fig. 18 is marked with 2 points, and the difference is that the font number is different, the green for the larger font is darker, and the black for the smaller font is clearer. The pipe diameter marking supports multiple marking, and when the path is long, multiple marking is allowed. And the pipe orifice label can also be labeled for multiple times, but only the last label is displayed, and the previous label is automatically replaced by the next label. FIG. 19 is a diagram illustrating the statistical results of steel pipes according to an embodiment of the present invention. As shown in fig. 19, the results of various types of steel pipes can be easily counted. FIG. 20 is a diagram illustrating the results of writing the tube diameter and tube length back to the cable table according to an embodiment of the present invention. As shown in fig. 20, the tube length and tube diameter may be written back to the cable table and stored.

In the embodiment, by combining the computer aided technology with the traditional design method, designers can be free from complicated drawing, calculation and material statistics in the three-dimensional piping design, the labor intensity is reduced, the design period is shortened, and the design efficiency and the drawing quality are greatly improved; in application, designers feel easy, quick and accurate, and the efficiency is improved more obviously when the engineering quantity is larger.

Based on the same inventive concept as the electrical piping computer aided drawing method shown in fig. 1, the embodiment of the invention also provides an electrical piping computer aided drawing device, as described in the following embodiments. Because the principle of solving the problems of the electrical piping computer aided drawing device is similar to that of the electrical piping computer aided drawing method, the implementation of the electrical piping computer aided drawing device can refer to the implementation of the electrical piping computer aided drawing method, and repeated parts are not repeated.

In some embodiments, an electrical tubing computer-aided drawing device may comprise:

the system comprises an information acquisition unit, a data processing unit and a data processing unit, wherein the information acquisition unit is used for acquiring cable information, floor information, the matching relation between the outer diameter of the cable and the specification of a distribution pipe, the pipe opening distance information relative to the floor and the matching relation between the outer diameter of the distribution pipe and the thickness of the floor, and the cable information comprises cable engineering attributes;

the outer diameter and pipe orifice acquisition unit is used for determining the outer diameter of the tubing according to the matching relation between the outer diameter of the cable and the specification of the tubing and the cable information; determining a coordinate value of a fixed point of the pipe orifice in a two-dimensional plane;

and the distribution pipe laying unit is used for automatically laying and forming a three-dimensional electric distribution pipe according to the coordinate value of the fixed point of the pipe orifice, the information of the distance of the pipe orifice relative to the floor slab, the information of the floor slab, the outer diameter of the distribution pipe and the matching relation between the outer diameter of the distribution pipe and the thickness of the floor slab.

In some embodiments, the outer diameter and nozzle acquiring unit may include:

a reference point determination module to: determining a coordinate value of a nozzle reference point in a two-dimensional plane according to the first click command;

and the reference point correction module is used for receiving the coordinate correction value and calculating to obtain a nozzle fixed point coordinate value according to the nozzle reference point coordinate value and the coordinate correction value.

In some embodiments, the pipe-laying unit may include:

the floor distribution mode laying module is used for forming a distribution path by connecting two pipe orifice fixed points corresponding to different pipe orifice fixed point coordinate values according to the floor information, the distribution outer diameter and the matching relation between the distribution outer diameter and the floor thickness in a floor distribution mode;

the floor hidden matching mode laying module is used for forming a pipe distribution path by connecting pipe orifice fixed points corresponding to two different pipe orifice fixed point coordinate values according to the pipe distribution outer diameter in the floor hidden matching mode;

the corner line exposed distribution mode laying module is used for connecting pipe orifice fixed points corresponding to two different pipe orifice fixed point coordinate values and a corner line selected in a two-dimensional plane where a floor or a terrace is located according to the pipe orifice fixed points and the corner line to form a pipe distribution path under the corner line exposed distribution mode;

and the vertical pipe distribution mode laying module is used for forming a distribution pipe path through a pipe orifice fixed point corresponding to the pipe orifice fixed point coordinate value according to the distribution pipe outer diameter and the pipe orifice distance information relative to the floor slab in the vertical pipe distribution mode.

In some embodiments, the pipe-laying unit may include:

the piping pipe orifice positioning point vertical coordinate value determining module is used for determining a coordinate value in a direction perpendicular to the two-dimensional plane according to the pipe orifice distance information of the relative floor slab;

and the vertical laying module is used for laying the pipe to a preset position in the direction vertical to the two-dimensional plane from the pipe orifice position corresponding to the pipe orifice fixed point coordinate value according to the coordinate value vertical to the direction of the two-dimensional plane and the pipe outer diameter in the vertical section mode of the electric pipe, and forming an arc-shaped inflection point at the preset position.

In some embodiments, the pipe laying unit may further include:

the horizontal section laying module is used for forming a distribution pipeline path in a two-dimensional plane where the floor slab is located by connecting two different inflection points according to the floor slab information, the distribution pipeline outer diameter and the matching relation between the distribution pipeline outer diameter and the floor slab thickness in a floor slab distribution pipeline mode; in a floor hidden matching mode, according to the outer diameter of the piping, a piping path is formed in a two-dimensional plane where the floor is located by connecting two different inflection points; and under the mode of bright distribution along the edge angle line, connecting according to the outer diameter of the distribution pipe and two different inflection points and the edge angle line selected in the two-dimensional plane of the floor or the terrace to form a distribution pipe path.

In some embodiments, the pipe laying unit may further include:

the adjusting point determining module is used for determining the position of the adjusting point according to the second click instruction;

the distribution pipe path adjusting module is used for respectively connecting to two different inflection points according to the positions of the adjusting points so as to adjust a distribution pipe path formed in a two-dimensional plane; and the position of the adjusting point forms an arc inflection point.

In some embodiments, the electrical tubing computer-aided drawing device may further include:

an attribute acquisition unit configured to acquire a feature attribute of piping in the three-dimensional electrical piping stored in advance, and generate a two-dimensional symbol attribute from the feature attribute;

a two-dimensional symbol generation unit configured to generate a two-dimensional symbol corresponding to the pipe;

and the marking unit is used for marking the pipe orifice and the piping path in the two-dimensional symbol according to the two-dimensional symbol attribute.

In some embodiments, the two-dimensional symbol generation unit may include:

and the two-dimensional symbol generating module is used for generating two circles with set diameters according to a horizontal piping path in the piping and connecting the two circles by using a straight line to form a two-dimensional symbol corresponding to the piping.

In some embodiments, the annotation unit comprises:

the marking line starting point acquisition module is used for dynamically capturing a pipe orifice or a piping path in the two-dimensional symbol to obtain a marking line starting point;

the marking line generating module is used for determining a marking line end point according to a third click command and forming a marking line according to the marking line starting point and the marking line end point;

the character marking direction acquisition module is used for taking the marking line end point as a reference point of character marking and determining the character marking direction according to the reference point and a fourth click instruction;

and the marking character generation module is used for generating marking characters of pipe openings or piping paths in the two-dimensional symbols according to the reference points of the character marking, the direction of the character marking and the two-dimensional symbol attributes.

In some embodiments, the electrical tubing computer-aided drawing device may further include:

the piping material collecting unit is used for traversing each piping in the three-dimensional electric piping, classifying and collecting according to the coding attribute of each piping, counting to obtain the length of each kind of piping, and outputting the material name, the material code, the material specification and the material length of the piping.

Embodiments of the present invention further provide a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method in the foregoing embodiments when executing the program.

Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method described in the above embodiments.

In summary, according to the computer aided drawing method for electrical piping, the computer aided drawing apparatus for electrical piping, the computer device and the computer readable storage medium of the embodiments of the present invention, by obtaining cable information, floor information, a matching relationship between an outer diameter of a cable and a piping specification, pipe orifice distance information with respect to a floor, and a matching relationship between an outer diameter of a piping and a floor thickness, determining an outer diameter of the piping according to the matching relationship between the outer diameter of the cable and the piping specification and the cable information, determining a pipe orifice fixed point coordinate value in a two-dimensional plane, and according to the pipe orifice fixed point coordinate value, the pipe orifice distance information with respect to the floor, the floor information, the outer diameter of the piping, and the matching relationship between the outer diameter of the piping and the floor thickness, three-dimensional electrical piping can be automatically laid and generated through computer aided design. Furthermore, the accurate positioning of the piping by a designer is assisted through reference point correction; by adding the piping attributes, the two-dimensional plotting can be automatically completed, and the attributes of the two-dimensional symbols are stored in the two-dimensional drawing; the two-dimensional symbol attribute can be extracted, and automatic labeling is completed. Therefore, decision-making basis can be provided timely on the three-dimensional design platform, designers are liberated from tedious, simple and repeated labor, design rule information, design process information and the like are arranged in the module database, design is smoothly completed according to design requirements, and design efficiency and quality are improved.

In the description herein, reference to the description of the terms "one embodiment," "a particular embodiment," "some embodiments," "for example," "an example," "a particular example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The sequence of steps involved in the various embodiments is provided to illustrate the practice of the invention, and the sequence of steps is not limited thereto and can be adjusted as desired.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (14)

1. A computer aided drawing method for electrical piping is characterized by comprising the following steps:

acquiring cable information, floor information, matching relation between the outer diameter of the cable and the specification of a distribution pipe, pipe opening distance information relative to the floor, and matching relation between the outer diameter of the distribution pipe and the thickness of the floor, wherein the cable information comprises cable engineering attributes;

determining the tubing outer diameter according to the matching relation between the cable outer diameter and tubing specifications and the cable information; determining a coordinate value of a fixed point of the pipe orifice in a two-dimensional plane;

according to mouth of pipe fixed point coordinate value, the mouth of pipe distance information of relative floor, floor information, piping external diameter and the matching relation of piping external diameter and floor thickness, lay automatically and form three-dimensional electric piping, specifically include:

in a floor pipe distribution mode, according to the floor information, the distribution pipe outer diameter and the matching relation between the distribution pipe outer diameter and the floor thickness, a distribution pipe path is formed by connecting two pipe opening fixed points corresponding to different pipe opening fixed point coordinate values;

in a floor hidden matching mode, according to the outer diameter of the pipe, a pipe orifice fixed point corresponding to two different pipe orifice fixed point coordinate values is connected to form a pipe distribution path;

under the edge angle line open distribution mode, according to the outer diameter of the distribution pipe, connecting the pipe orifice fixed points corresponding to two different pipe orifice fixed point coordinate values and the edge angle line selected in the two-dimensional plane of the floor or the terrace to form a distribution pipe path;

and forming a piping path through a pipe orifice fixed point corresponding to the pipe orifice fixed point coordinate value according to the outside diameter of the piping and the pipe orifice distance information of the relative floor slab in a mode of vertical pipe distribution.

2. The computer-aided drawing method for electrical tubing according to claim 1, wherein determining a nozzle set point coordinate value in a two-dimensional plane comprises:

determining a coordinate value of a nozzle reference point in a two-dimensional plane according to the first click command;

and receiving the coordinate correction value, and calculating according to the coordinate value of the pipe orifice reference point and the coordinate correction value to obtain a coordinate value of the pipe orifice fixed point.

3. The computer-aided drawing method for electrical piping according to claim 1, wherein three-dimensional electrical piping is automatically laid and formed based on the pipe orifice fixed point coordinate value, the pipe orifice distance information with respect to the floor slab, the floor slab information, the pipe outside diameter, and the matching relationship between the pipe outside diameter and the floor slab thickness, comprising:

determining a coordinate value of a direction perpendicular to the two-dimensional plane according to the pipe orifice distance information of the relative floor slab;

in the vertical section mode of the electric piping, according to the coordinate value of the direction perpendicular to the two-dimensional plane and the outside diameter of the piping, the piping is laid to a predetermined position in the direction perpendicular to the two-dimensional plane from the position of the pipe orifice corresponding to the fixed point coordinate value of the pipe orifice, and an arc inflection point is formed at the predetermined position.

4. The computer-aided drawing method for electrical piping according to claim 3, wherein three-dimensional electrical piping is automatically laid out and formed based on the pipe orifice fixed point coordinate value, the pipe orifice distance information with respect to the floor slab, the floor slab information, the pipe outside diameter, and the matching relationship between the pipe outside diameter and the floor slab thickness, further comprising:

in a floor distribution mode, according to the floor information, the distribution pipe outer diameter and the matching relation between the distribution pipe outer diameter and the floor thickness, a distribution pipe path is formed in a two-dimensional plane where a floor is located by connecting two different inflection points; in a floor hidden matching mode, according to the outer diameter of the piping, a piping path is formed in a two-dimensional plane where the floor is located by connecting two different inflection points; and under the edge line open distribution mode, according to the outer diameter of the distribution pipe, connecting the two different inflection points and the edge line selected in the two-dimensional plane of the floor or the terrace to form a distribution pipe path.

5. The computer-aided drawing method for electrical piping according to claim 4, wherein three-dimensional electrical piping is automatically laid out and formed based on the pipe orifice fixed point coordinate values, the pipe orifice distance information with respect to the floor, the floor information, the pipe outside diameter, and the matching relationship between the pipe outside diameter and the floor thickness, further comprising:

determining the position of an adjusting point according to the second click instruction;

connecting the adjusting points to two different inflection points respectively according to the positions of the adjusting points so as to adjust a piping path formed in a two-dimensional plane; and the position of the adjusting point forms an arc-shaped inflection point.

6. The computer-aided drawing method for electrical tubing of claim 1, further comprising:

acquiring a pre-stored characteristic attribute of the piping in the three-dimensional electric piping, and generating a two-dimensional symbol attribute according to the characteristic attribute;

generating a two-dimensional symbol corresponding to the piping;

and labeling the pipe orifice and the piping path in the two-dimensional symbol according to the two-dimensional symbol attribute.

7. The computer-aided drawing method for electrical piping according to claim 6, wherein generating a two-dimensional symbol corresponding to the piping comprises:

two circles of a set diameter are generated from a horizontal piping path in the piping, and the two circles are connected by a straight line to form a two-dimensional symbol corresponding to the piping.

8. The computer-aided drawing method for electrical piping according to claim 6, wherein labeling the pipe orifice and the piping path in the two-dimensional symbol according to the two-dimensional symbol attributes comprises:

dynamically capturing the pipe orifice or the piping path in the two-dimensional symbol to obtain a marking line starting point;

determining a marking line end point according to a third click command, and forming a marking line according to the marking line starting point and the marking line end point;

taking the end point of the marked line as a reference point of character marking, and determining the direction of character marking according to the reference point and a fourth click instruction;

and generating the marked characters of the pipe orifice or the piping path in the two-dimensional symbol according to the reference points of the character marking, the direction of the character marking and the attribute of the two-dimensional symbol.

9. The computer-aided drawing method for electrical piping according to claim 1, further comprising:

traversing each piping in the three-dimensional electric piping, classifying and summarizing according to the coding attribute of each piping, counting to obtain the length of each kind of piping, and outputting the material name, the material code, the material specification and the material length of the piping.

10. The electrical tubing computer-aided drawing method of claim 8, wherein the characteristic attribute comprises: reference point correction direction, cable information, pipe orifice height information, piping specification, piping number, and piping mode information.

11. The computer-aided drawing method for electrical tubing of claim 1, wherein said cable engineering attributes comprise: cable number, cable source, cable destination, cable model, and cable specification.

12. The computer-aided drawing method for electrical piping according to claim 1, wherein the floor information includes a floor number and a floor thickness.

13. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of any of claims 1 to 12 are implemented when the program is executed by the processor.

14. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 12.

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