Method for automatically generating vertical power distribution system diagram based on BIM in forward design

Abstract

The application provides a method for automatically generating a vertical power distribution system diagram based on BIM in positive design, and relates to the technical field of building electricity, and comprises the following steps: intelligently analyzing a building BIM three-dimensional model of positive design, and accurately identifying electrical professional components; extracting key data of distribution boxes, and constructing a three-level electrical system topology network of'main distribution cabinet -> layer distribution box -> terminal distribution box'; generating standardized data through multiple verifications of data formats, logical relationships and parameter thresholds; automatically drawing through flat and aligned modes, and establishing a two-way linkage mechanism between the BIM model and the system diagram. The application aims to solve the problems of low efficiency, chaotic version management, lack of three-dimensional space expression and insufficient design accuracy of traditional AutoCAD two-dimensional manual drawing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building electrical engineering, and in particular to a method for automatically generating a vertical power distribution system diagram based on BIM in forward design. BACKGROUND

[0002] The vertical power distribution system diagram (also known as the trunk power distribution system diagram or power distribution trunk diagram) is a key drawing in building electrical design, and its core role is to clearly express the vertical power supply relationship of the power distribution system, including the hierarchical relationship between distribution boxes (cabinets) (such as the main distribution cabinet -> layer distribution box -> terminal distribution box), the specifications and laying methods of cables / busbars, and other core information, which is an important basis for building electrical system construction and operation.

[0003] In the field of building electrical design, the early and traditional design stage mainly adopts a pure manual drawing mode in the AutoCAD two-dimensional environment, and the design process and operation have significant limitations: the designer needs to first read the two-dimensional CAD plan drawing of the building structure, then manually draw the graphics and legends in the vertical power distribution system, and then rely on manual observation and judgment to determine the connection relationship between devices, and finally manually complete the drawing of the system schematic diagram through CAD software.

[0004] This traditional design mode has many technical problems and defects:

[0005] 1. Low design efficiency: it usually takes 40-60 man-hours to draw the vertical power distribution system diagram for a single project, and the designer needs to invest a lot of time and effort in performing repetitive mechanical drawing operations, which occupies his time in core design optimization;

[0006] 2. Version management confusion: when the design scheme changes, the drawing adjustment needs to be completed manually, which not only increases the workload, but also easily causes inconsistencies in different version drawings due to manual operation omissions;

[0007] 3. Lack of three-dimensional space expression: two-dimensional manual drawing cannot present the three-dimensional spatial relationship of the power distribution system, and it is difficult to intuitively reflect the spatial adaptability of the equipment and the building structure, which may cause hidden dangers for subsequent construction;

[0008] 4. Insufficient design accuracy: the connection relationship, quantity and other key information of the equipment rely on manual memory and reading, which is easy to cause judgment errors or data recording errors, affecting the reliability of the power distribution system design. SUMMARY

[0009] Therefore, the present application aims to provide a method for automatically generating a vertical power distribution system diagram based on BIM in forward design, which extracts key data of distribution boxes by intelligently analyzing a building three-dimensional model through BIM, solves the problems of low efficiency, version disorder, lack of three-dimensional expression and insufficient accuracy in traditional two-dimensional manual drawing by relying on a paving / alignment double-output diagram mode, one-key output diagram, two-way linkage and multiple verification mechanisms.

[0010] The technical scheme adopted by the present application to solve its technical problems is:

[0011] A method for automatically generating a vertical power distribution system diagram based on BIM in forward design is provided, comprising the following steps:

[0012] S1, intelligently analyzing a building BIM three-dimensional model in forward design, and accurately identifying electrical professional components in the model;

[0013] S2, automatically extracting key data of distribution boxes in electrical professional components based on extracted distribution box hierarchical relationship, power supply range and loop connection mode, constructing a complete electrical system topology network, wherein the key data at least includes spatial position information, device parameters, mutual connection relationship and hierarchical relationship of the distribution boxes;

[0014] S3, processing the original key data extracted in step S2, first automatically identifying and labeling abnormal data points through standardization inspection, then eliminating invalid data or correcting deviation data by using a multiple verification mechanism, and generating standardized data meeting the basic requirements of output diagram;

[0015] S4, according to the standardized data in S3, calling a built-in building electrical industry symbol library and a labeling rule library, and generating a vertical power distribution system diagram through a paving or alignment output diagram mode:

[0016] If it is a paving mode, after reading the building floor information, the distribution boxes are arranged in order according to the floor, and the end value of the upper distribution box is drawn horizontally as the initial value of the lower layer, the vertical connection path of the distribution room and the distribution box is restored and the industry standard legend is labeled, the power of the distribution box and the cable specification are labeled, and the drawing is generated;

[0017] If it is an alignment mode, after defining the floor total meter box and the indoor lighting box name, reading the floor information and extracting various distribution boxes, arranging the distribution boxes according to their functions, sorting the building floors from top to bottom, calculating the cable length and specification difference between distribution boxes in the same column and different floors and labeling them, and labeling the distribution box parameters, the drawing is generated;

[0018] S5, binding the vertical power distribution system diagram generated in S2 with the BIM three-dimensional model data, realizing the bidirectional data association of the drawing and the three-dimensional model, when modifying the parameters of any power distribution box in the BIM model, synchronously updating the corresponding data and graphical expression of the drawing; when adjusting the data or graphics of the drawing, the changed content is fed back to the BIM model in real time and the corresponding electrical component parameters are corrected, ensuring the consistency of the design data.

[0019] Preferably, the "tiled drawing mode" in step S4 further comprises: the mode is applicable to building types with ≤10 floors, ≤20 power distribution boxes, clear functional zoning and simple power distribution structure; when synchronously restoring the vertical connection path of the power distribution room and each floor power distribution box, the system automatically matches the actual laying mode of the cable / busbar and labels the corresponding building electrical industry standard legend.

[0020] Preferably, the "alignment drawing mode" in step S4 further comprises: the functional types of the power distribution box specifically cover residential indoor power box, commercial power box, public lighting box, emergency lighting box, lighting lighting box, and ordinary elevator control box; when listing by function, each column only shows the same type of power distribution box, and the function type name is labeled at the top of the column; the cable length and specification difference between power distribution boxes in the same column and different floors are calculated and labeled, which can be directly used for construction quantity statistics.

[0021] Preferably, the "bidirectional linkage mechanism" in step S5 is: when modifying the parameters of any power distribution box in the BIM three-dimensional model, the system automatically identifies the influence range of parameter change, and synchronously updates the corresponding data and graphical expression in the vertical power distribution system diagram; when adjusting the data or graphics in the vertical power distribution system diagram, the changed content is fed back to the BIM three-dimensional model in real time, and the corresponding electrical component parameters in the model are synchronously adjusted, ensuring the consistency of the design data.

[0022] Preferably, the "multi-checking mechanism" in step S3 specifically includes data format checking, logical relationship checking, and parameter threshold checking; wherein the data format checking is used to match the field format of the drawing data specification of the vertical power distribution system diagram, and to eliminate invalid data with inconsistent format; the logical relationship checking is used to verify the corresponding reasonableness of the power distribution box hierarchical relationship and the power supply range, and to correct logical error data such as "terminal power distribution box supplying power to the main power distribution cabinet"; the parameter threshold checking is used to screen abnormal data with device parameters exceeding the threshold of the building electrical industry standard, and to prompt the user to correct the deviation data.

[0023] Preferably, the step S2 of "constructing a complete electrical system topology network" specifically comprises: based on the extracted distribution box hierarchical relationship, power supply range and loop connection mode, constructing a three-level vertical power supply logic network of "main distribution cabinet -> layer distribution box -> terminal distribution box", presenting the power supply range of each hierarchical distribution box, the connection path and specification parameters of the cable / busbar in the topology network in a visual form, and associating the installation height of the distribution box and the information of the fire compartment belonging to the corresponding distribution box node, when the mouse hovers over the node, the complete data can be displayed, providing additional reference for design review and construction briefing.

[0024] Preferably, the "built-in building electrical industry symbol library and annotation rule library" in the step S4 can automatically adjust the drawing expression according to the drawing requirements of different regions and different design institutes, and intelligently add necessary annotations and explanations such as distribution box power, cable specification and laying mode, realizing the automatic effect of "one-key triggering to complete the whole process of drawing".

[0025] Preferably, the "distribution box key data" extracted in the step S2 further comprises the installation height of the distribution box and the information of the fire compartment belonging to; when the electrical system topology network is visually presented, the installation height and the information of the fire compartment belonging to are associated to the corresponding distribution box node, when the mouse hovers over the node, the complete data can be displayed, providing additional reference for design review and construction briefing.

[0026] Also provided is a server comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for automatically generating a vertical power distribution system diagram based on BIM in forward design according to any one of the above-mentioned methods, and synchronously completes the visual rendering of the electrical system topology network when executing the step S2, and calls the built-in symbol library and annotation rule library when executing the step S4.

[0027] Also provided is a computer readable storage medium storing computer executable instructions, wherein the computer executable instructions implement the method for automatically generating a vertical power distribution system diagram based on BIM in forward design according to any one of the above-mentioned methods, and support the format export of the vertical power distribution system diagram generated in the step S4.

[0028] The beneficial effects of the present application are:

[0029] The application provides a method for automatically generating a vertical power distribution system diagram based on BIM in forward design, intelligently analyzes a building BIM three-dimensional model in forward design, automatically identifies electrical professional components and extracts key data such as power distribution box spatial position, equipment parameters, installation height and fire compartment, combines a tiled and aligned double-output diagram mode suitable for different scenes, and realizes one-key output diagram by matching an embedded industry standard symbol library and a labeling rule library, completely replaces manual repeated drawing and labeling, greatly shortens the output diagram period of 40-60 working hours of a traditional single project, and releases the core optimization energy of the designer. On data consistency, a two-way linkage mechanism is established between the BIM model and the system diagram, any parameter modification can automatically identify the associated influence range and update synchronously, and the problems of traditional design version confusion and inconsistent data are avoided. On three-dimensional expression, a visual topological network of a general power distribution cabinet, a layer power distribution box and a terminal power distribution box is constructed, the space and fire information of the equipment are associated, the defect that the spatial adaptability cannot be presented by two-dimensional drawing is made up, and design auditing and construction disclosure are assisted. On accuracy, invalid data is removed and deviation is corrected through multiple verifications of data format, logical relationship and parameter threshold, necessary labeling is intelligently added, manual error is avoided, and design compliance and reliability are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0030] Fig. 1 A flowchart of the application.

[0031] Fig. 2 A vertical power distribution system diagram in a tiled manner of the application.

[0032] Fig. 3 A vertical power distribution system diagram in an aligned manner of the application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the application will be described clearly and completely in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0034] Detailed steps of the specific implementation are as shown in Figs. 1-3

[0035] Step S1: Taking the BIM three-dimensional model of the electrical professional modeling completed in the forward design as a data source, distinguishing the electrical professional components from the building structure components through a component feature recognition algorithm, laying a foundation for subsequent data extraction, and avoiding interference of non-electrical components.

[0036] ​In implementation, modeling is completed in advance by Revit, Bentley and other building three-dimensional software, and the model should include electrical professional components such as distribution box, cable and bus, and the basic parameters of the components are recorded, including the power and specification of the distribution box, to meet the basic requirements of data extraction. After starting the corresponding computer program of the application, the program calls the component feature recognition algorithm, and realizes accurate recognition through a three-matching mechanism: first, match the model family type, such as distribution box family and bus slot family, while excluding structural component families such as beam family and plate family; second, match the attribute label, such as residential indoor electrical box and emergency lighting box; finally, match the geometric parameters, such as the length, width and height size range of the distribution box, to filter out the components that meet the specifications of electrical equipment; finally, the system marks all electrical professional components, meeting the requirements of reading the model information of the vertical power distribution system in the three-dimensional model.

[0037] Step S2: automatically extracting key data from the identified electrical components, and building a visual power supply logic network based on the data, which provides logical support for subsequent drawing and provides additional reference for design review and construction briefing.

[0038] The system automatically extracts the spatial position information of the distribution box through the algorithm, which is accurate to the floor and three-dimensional coordinates; extracts the equipment parameters, including the rated power and specification; extracts the connection relationship, that is, the loop association with other distribution boxes or cables; extracts the hierarchical relationship, which clearly shows the ownership relationship between the main distribution cabinet, layer distribution box and terminal distribution box. In addition, the system also extracts the installation height of the distribution box, which is used to check the spatial adaptability of the distribution box with beams, plates and other building components to avoid installation conflicts; and extracts the information of the fire compartment to which the distribution box belongs, which is used to verify the compliance of power supply across the fire compartment. The above two types of additional data are temporarily stored synchronously with the basic data.

[0039] Based on the extracted distribution box hierarchical relationship, power supply range and loop connection mode, the system constructs a three-level vertical power supply logic network of "main distribution cabinet → layer distribution box → terminal distribution box", which is visually displayed in the form of an interface. Each distribution box is presented in the form of a node, and the node is associated with the power supply range, the connection path and the specification parameters of the cable or bus. At the same time, the installation height and the fire compartment information are bound to the corresponding node, and when the mouse hovers over the node, the system pop-up window displays the complete data, providing a reference for design review and construction briefing.

[0040] Step S3: eliminate invalid data and correct deviation data through multi-dimensional verification to ensure that the data meets the drawing specification and avoids the error risk of traditional manual data processing.

[0041] The program automatically scans the raw data extracted in step S2, identifies and labels abnormal data points, such as power distribution boxes without power supply ranges or coordinate information with format errors. The system uses a triple verification mechanism to process data: data format verification is used to match the field format of the vertical power distribution system drawing data specification, including uniform device power unit as kilowatts, coordinate format as X / Y / Z decimal meters, and uniform laying method as along the bridge CT laying, and invalid data with inconsistent format is excluded; logical relationship verification is used to verify the rationality of the power supply level, prohibit reverse logic of terminal power distribution box supplying power to the main power distribution cabinet, and correct the incorrect connection relationship; parameter threshold verification is based on the building electrical industry standard to screen abnormal data with device parameters exceeding the threshold, such as the rated power of civil terminal power distribution box not exceeding 15 kilowatts, and prompts the user to correct the data that exceeds the limit.

[0042] Step S4: Based on the standardized data, the system calls the built-in building electrical industry compliance resources, provides two scene-based drawing modes of tiling and alignment, completes the whole process of drawing without manual intervention, outputs the vertical power distribution system drawing that meets the construction briefing requirements, and realizes "one-key drawing" by combining the built-in industry standard symbol library and labeling rule library, meeting the drawing needs of different building types.

[0043] The system has built-in symbol library and labeling rule library that meet national standards, which can automatically adapt to individual drawing requirements; the symbol library covers standard legends of building electrical core components such as power distribution boxes, cables, bridge frames, and bus ducts, and all legends meet industry drawing specifications; the labeling rule library pre-stores the drawing preferences of different regions and design institutes, covering labeling position, font size, and parameter display order, which can be automatically adapted according to user selection or project attributes.

[0044] After the user selects the target drawing mode in the system interface and clicks the generate drawing button, the program starts the automatic process: automatically calls the core information of power distribution box position, parameters, and connection relationship in standardized data; completes power distribution box arrangement, power supply path drawing, and industry legend matching according to the selected mode; intelligently adds key labels, including power distribution box power, cable model and specification, laying method, and floor number; automatically adjusts the layout of the drawing to ensure compliance with the construction drawing printing specification; finally outputs the vertical power distribution system drawing that can be directly used for construction briefing without subsequent manual modification; the specific drawing modes are as follows:

[0045] Tiling drawing mode:

[0046] Suitable for building types with no more than ten floors, no more than twenty distribution boxes, clear functional zoning and simple power distribution structure. This mode simulates the actual spatial position relationship of the distribution box in the building, arranges the distribution box according to the actual floor distribution order, and uses the end horizontal value of the upper distribution box as the horizontal drawing initial value of the lower distribution box, to ensure that the space arrangement of the drawing is consistent with the actual building. The system synchronously restores the vertical connection path of the distribution room and each floor distribution box, automatically matches the actual laying mode of the cable or bus, and labels the corresponding building electrical industry standard legend.

[0047] Alignment drawing mode:

[0048] Suitable for building types with no less than ten floors, no less than twenty distribution boxes, and complex power distribution system; this mode first divides columns according to the functional type of the distribution box, and each column only displays the same type of distribution box. The functional types include residential indoor power box, commercial network power box, public lighting box, emergency lighting box, lighting lighting box and ordinary elevator control box. Then arrange the distribution boxes in each column in turn from top to bottom according to the building floor, label the functional type name at the top of the column, and label the floor number on the side of the drawing. The system automatically calculates and labels the cable or bus length and specification difference between the distribution boxes in the same column and different floors, facilitating construction quantity statistics.

[0049] Step S5: Establish real-time data binding between BIM three-dimensional model and vertical power distribution system diagram, solve the pain points of "model and drawing out of synchronization" and "version management confusion" in traditional design, and ensure the consistency of design data throughout the process.

[0050] When the user modifies any distribution box parameter in the BIM three-dimensional model, the system automatically identifies the influence range of the parameter change, including the associated cable or bus specification, power supply loop and distribution box hierarchical relationship, and synchronously updates the corresponding data and graphical expression in the vertical power distribution system diagram. Conversely, when the user adjusts the data or graphics in the vertical power distribution system diagram, the changed content is fed back to the BIM three-dimensional model in real time, and the corresponding electrical professional component parameters in the model are adjusted synchronously, thereby ensuring the uniqueness and consistency of design data throughout the process. Specific embodiment one

[0052] This embodiment takes the vertical power distribution system design of a 10-story office building as a specific application scenario, and fully demonstrates the implementation process of the method of the application.

[0053] Step S1:

[0054] First, import the Revit BIM three-dimensional model of the 10-story office building, which already contains complete electrical professional modeling results. The system accurately identifies electrical professional components in the model through built-in electrical component recognition algorithms based on component family type and attribute tag matching mechanism; the identified components mainly include:

[0055] Distribution box: a total of 41, including 1 general distribution cabinet in the underground 1st floor distribution room, 10 layer distribution boxes in total, 1 on each floor, and 30 terminal distribution boxes corresponding to the office area, corridor lighting and air conditioning loop respectively on each floor;

[0056] Cables and busbars: YJV series cables are used to connect each distribution box, such as the cable specification YJV-4x150+1x70 from the general distribution cabinet to the 1st floor distribution box, and the busbar slot vertically laid in the core tube;

[0057] Auxiliary components: including bridge, junction box, etc. laid along the suspended ceiling.

[0058] The identification results are displayed in the Revit interface in the form of a component list combined with three-dimensional positioning marks, and designers can manually confirm or correct the identification results.

[0059] Step S2:

[0060] The system automatically reads the key data of the identified electrical components through the parameter extraction module, including:

[0061] Spatial position information: for example, the spatial coordinates of the general distribution cabinet are (10.5m, 8.2m, -3.5m), and the coordinates of the 1st floor distribution box are (12.3m, 9.1m, 3.0m); Equipment parameters: the rated power of the general distribution cabinet is 800kW, the rated power of the 1st floor terminal distribution box is 50kW, and the cable type is YJV-4x150+1x70; Equipment parameters: the rated power of the general distribution cabinet is 800kW, the rated power of the 1st floor terminal distribution box is 50kW, and the cable type is YJV-4x150+1x70; Mutual connection relationship: clearly expresses the power supply path from the general distribution cabinet to the 1st floor distribution box, and then to the 1st floor office area terminal distribution box and the corridor lighting terminal distribution box; Hierarchy: clearly defines a three-level architecture with the general distribution cabinet as the first level, the layer distribution box as the second level, and the terminal distribution box as the third level; Additional information: including the installation height of the terminal distribution box 2.5 meters, and its belonging to the fire compartment information, such as the 1st floor belongs to A1 fire compartment;

[0062] Based on the extracted data, the system constructs an electrical system topology network through graph theory topology algorithm. This network uses nodes of different colors to represent distribution boxes of different levels, such as red for general distribution cabinet, blue for layer distribution box, and green for terminal distribution box. Cables or busbars are represented by attribute connections, and the connections are labeled with their types and laying methods. This topology network supports visual interaction, and when the user hovers the mouse over the 1st floor terminal distribution box node, the interface automatically pops up a window displaying its complete data such as power, installation height, and fire compartment, providing a solid logical support for subsequent drawing.

[0063] Step S3:

[0064] A "triple-checking mechanism" is performed on the raw data extracted in step S2:

[0065] Data format checking: Check the format specification of key data, such as power unit must be kilowatt, coordinate format must be decimal meter.

[0066] Logical relationship checking: Verify the rationality of power supply hierarchy logic, find and automatically correct a wrong connection relationship, correct the logical contradiction of directly connecting the terminal distribution box to the total distribution cabinet, and correct the correct path according to the three-level architecture.

[0067] Parameter threshold checking: According to national standards, screen whether the equipment parameters exceed the conventional threshold, such as the rated current of the layer distribution box should not exceed 630 amperes.

[0068] After the checking is completed, the system generates an XML format standardized data file, which contains three modules of distribution box list, cable list and power supply logic table, which can be directly called for subsequent drawing link.

[0069] Step S4:

[0070] According to the characteristics of this building, the first to third floors are commercial podiums, with different functions and fewer distribution boxes, so the flat drawing mode is adopted; the fourth to tenth floors are standard office floors, with similar types and more distribution boxes, so the alignment drawing mode is adopted.

[0071] The flat drawing mode is implemented as follows:

[0072] Arrangement logic: Arrange the distribution boxes according to the actual order of 3 layers, 2 layers and 1 layer, and use the right side horizontal coordinate of the upper distribution box as the left side starting drawing position of the lower distribution box, so as to accurately reflect the spatial position relationship of the equipment on the drawing.

[0073] Connection path and labeling: Automatically restore the vertical connection path from the underground 1st floor distribution room to the 1-3 floor distribution boxes, label the laying method of the cable, and intelligently add key parameters such as power of distribution box and cable model, finally generate flat system drawing conforming to national drawing standards.

[0074] The alignment drawing mode is implemented as follows:

[0075] Column division and arrangement: According to the functions of office area, corridor lighting and air conditioning loop, the terminal distribution boxes are divided into three columns, each column only displays the same type of box, and arranged from top to bottom according to the order of 10th floor to 4th floor.

[0076] Annotation and statistics: each column at the top of the function type name, the side of the drawing floor number. The system automatically calculates and marks the cable length difference and specification changes between the distribution box in the same column and different floors. The generated drawing clearly shows the connection and parameter relationship of the same type of distribution box in 7 floors, which is convenient for construction quantity statistics.

[0077] The system is built-in with a symbol library and a labeling rule library in line with national mapping standards. After the user selects the drawing mode, clicks the generate button, the system can automatically complete the vertical power distribution system diagram of a 10-story building. Compared with the time required for traditional manual drawing, the efficiency is significantly improved.

[0078] Step S5:

[0079] This embodiment further verifies the bidirectional linkage mechanism of the model and the drawing:

[0080] Model modification drives drawing update: When the power of the 5th floor office terminal distribution box is changed from 50 kW to 60 kW in the Revit model, the system automatically identifies the impact range of this change through the data monitoring module and synchronously updates the power label in the system diagram within a short time. At the same time, it prompts that the associated cable specification needs to be upgraded accordingly and automatically completes the label update.

[0081] Drawing modification drives model update: When the connection path of the 6th floor corridor lighting terminal distribution box is adjusted from the east bridge to the west bridge in the system diagram, the change is fed back to the Revit model in real time. The connection point of the corresponding cable and the laying path label in the topology network in the model are updated synchronously, ensuring the consistency of the model and the drawing data.

[0082] Example two:

[0083] This embodiment provides a server for running the method of the present application, and the specific configuration and running process are as follows:

[0084] Hardware configuration: processor, memory, interface supporting high-speed data operation;

[0085] Software and program: the computer program deployed thereon includes five core functional modules: model analysis module, data extraction module, topology construction module, drawing control module and linkage synchronization module;

[0086] Running process:

[0087] After starting, load the computer program, import the BIM model of the house through the gigabit network port, the program automatically completes model analysis and topology construction, the designer selects the alignment drawing mode on the terminal and clicks to generate, the program calls the built-in symbol library stored in the specified path to generate the system drawing in DWG format; when executing the data synchronization step, the server listens to the model and drawing change instructions in real time, and automatically stores all change logs in a specific path of the solid state disk, facilitating version tracing.

[0088] Embodiment three:

[0089] The embodiment provides a computer readable storage medium storing executable instructions of the method, so as to take a solid state disk as a carrier, integrate program files and specification symbol libraries, support one-key starting in different computer environments and output of multiple format system drawings.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions of the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for automatically generating vertical power distribution system diagrams based on BIM in forward design, characterized in that, Includes the following steps: S1. Intelligent analysis of the building BIM 3D model in the forward design process to accurately identify electrical components in the model; S2. Automatically extract key data of distribution boxes in electrical components using algorithms. Construct a complete electrical system topology network based on the extracted distribution box hierarchy, power supply range and circuit connection method. The key data includes at least the spatial location information of the distribution boxes, equipment parameters, interconnection relationships and hierarchy. S3. Process the raw key data extracted in step S2. First, automatically identify and mark abnormal data points through standardization checks. Then, use a multi-verification mechanism to remove invalid data or correct deviation data to generate standardized data that meets the basic requirements for map output. S4. Based on the standardized data in S3, call the built-in building electrical industry symbol library and annotation rule library to generate a vertical power distribution system diagram through either a tiled or aligned drawing mode: If it is a flat layout: After traversing and reading the building floor information, arrange the distribution boxes in order of floor and use the final value of the upper distribution box as the initial value of the lower layer. Restore the vertical connection path between the distribution room and the distribution box and mark it with industry standard legend. After marking the power of the distribution box and the cable specifications, generate the drawing. If the alignment method is used: After defining the names of the floor main meter box and indoor lighting box, iterate through the floor information and extract various distribution boxes, sort them by distribution box function and the building floors from top to bottom, calculate and mark the differences in cable length and specifications between distribution boxes on different floors in the same column, and generate drawings after marking the distribution box parameters. S5. Bind the vertical power distribution system diagram generated in S2 with the BIM 3D model data to achieve bidirectional data association between the drawings and the 3D model. When the parameters of any distribution box in the BIM model are modified, the corresponding data and graphic representation in the drawings are updated synchronously. When the data or graphics in the drawings are adjusted, the changes are fed back to the BIM model in real time and the corresponding electrical component parameters are corrected to ensure the consistency of the design data.

2. The method for automatically generating vertical power distribution system diagrams based on BIM in forward design as described in claim 1, characterized in that: The "flat drawing mode" in step S4 also includes: this mode is applicable to building types with ≤10 floors, ≤20 distribution boxes, clear functional zoning and simple power distribution structure; when synchronously restoring the vertical connection path between the power distribution room and the distribution boxes on each floor, the system automatically matches the actual laying method of the cable / bus and marks the corresponding building electrical industry standard legend.

3. The method for automatically generating vertical power distribution system diagrams based on BIM in forward design as described in claim 1, characterized in that: The "aligned drawing mode" in step S4 also includes: the distribution box function types specifically cover residential indoor distribution boxes, commercial outlet distribution boxes, public lighting boxes, emergency lighting boxes, decorative lighting boxes, and ordinary elevator control boxes; when sorted by function, each column only displays the same type of distribution box, the function type name is marked at the top of the column, and the floor number is marked on the side when sorting by building floors; the calculated and marked differences in cable length and specifications between distribution boxes on different floors in the same column can be directly used for construction quantity statistics.

4. The method for automatically generating vertical power distribution system diagrams based on BIM in forward design as described in claim 1, characterized in that: The "two-way linkage mechanism" in step S5 is as follows: when the parameters of any distribution box in the BIM 3D model are modified, the system automatically identifies the scope of the impact of the parameter change and synchronously updates the corresponding data and graphic representation in the vertical power distribution system diagram. When data or graphics are adjusted in the vertical power distribution system diagram, the changes are fed back to the BIM 3D model in real time, and the corresponding electrical component parameters in the model are adjusted synchronously to ensure the consistency of the design data.

5. The method for automatically generating vertical power distribution system diagrams based on BIM in forward design as described in claim 1, characterized in that: The "multi-verification mechanism" in step S3 specifically includes data format verification, logical relationship verification, and parameter threshold verification. Among them, data format verification is used to match the field format of the vertical power distribution system diagram output data specification and eliminate invalid data with non-conforming formats; logical relationship verification is used to verify the rationality of the correspondence between the distribution box hierarchy and the power supply range and correct the logical error data of "terminal distribution box supplies power to the main distribution cabinet"; parameter threshold verification is used to screen abnormal data of equipment parameters that exceed the threshold of the building electrical industry standard and prompt the user to correct the deviation data.

6. The method for automatically generating vertical power distribution system diagrams based on BIM in forward design as described in claim 1, characterized in that: The step S2, "constructing a complete electrical system topology network," specifically includes: based on the extracted distribution box hierarchy, power supply range, and circuit connection method, constructing a three-level vertical power supply logic network of "main distribution cabinet → layer distribution box → terminal distribution box." In the topology network, the power supply range, cable / bus connection path, and specification parameters of each level of distribution box are presented in a visual form. The installation height of the distribution box and the fire compartment information are associated with the corresponding distribution box node. When the mouse hovers over the node, the complete data can be displayed, providing additional reference for design review and construction handover.

7. The method for automatically generating vertical power distribution system diagrams based on BIM in forward design as described in claim 1, characterized in that: The "built-in building electrical industry symbol library and annotation rule library" in step S4 can automatically adjust the drawing expression method according to the drawing requirements of different regions and design institutes, and intelligently add necessary annotations and explanations for power distribution box, cable specifications, and laying methods, so as to achieve the automation effect of "one-click trigger to complete the whole process of drawing".

8. The method for automatically generating vertical power distribution system diagrams based on BIM in forward design as described in claim 1, characterized in that: The "key data of the distribution box" extracted in step S2 also includes the installation height of the distribution box and the fire compartment information to which it belongs. When the electrical system topology network is visualized, the installation height and fire compartment information will be associated with the corresponding distribution box node. When the mouse hovers over the node, the complete data can be displayed, providing additional reference for design review and construction handover.

9. A server, comprising: The memory, processor, and computer program stored in the memory and executable on the processor are characterized in that, when the processor executes the computer program, it implements the method for automatically generating vertical power distribution system diagrams based on BIM in forward design as described in any one of claims 1 to 8, and simultaneously completes the visualization rendering of the electrical system topology network when executing step S2, and calls the built-in building electrical industry symbol library and annotation rule library when executing step S4.

10. A computer-readable storage medium storing computer-executable instructions, characterized in that, The computer can execute the method for automatically generating vertical power distribution system diagrams based on BIM in forward design as described in any one of claims 1 to 8, and supports exporting the vertical power distribution system diagrams generated in step S4 in a specified format.

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